COMPARISON OF WATER QUALITY INDEX (WQI) BETWEEN DOE
METHOD AND HARKIN’S INDEX
LIM FUI LING
A dissertation submitted in partial fulfillment of the
requirements for the award of the degree of
Master of Engineering
Faculty of Chemical and Natural Resource Engineering
Universiti Teknologi Malaysia
MARCH 2007
iii
To my beloved father, Lim Kon Pau
and
beloved late mother, Chong Moi
iv
ACKNOWLEDGEMENTS
In preparing this thesis, I have received coorperation and dedication from various
parties. In particular, I wish to express my sincere appreciation to my thesis supervisor,
Associate Professor Dr. Maketab Mohamed, for guidance, patience and understanding. I
am greatly indebted to you for giving me the opportunity to conduct this research project.
A great deal of experience is learned throughout this project and will be cherish for the
rest of my life.
Special thanks for the Department of Environment (DOE) for their assistance in
providing the necessary water quality data for my thesis. I am also indebted to
Universiti Teknologi Malaysia (UTM) for giving me the opportunity to complete my
studies.
My fellow postgraduate students should also be recognized for their support
especially Puan Harimah. My sincere appreciation also extends to all my colleagues and
superior who have provided assistance and encouragement at various occasions.
Last but not least, to my parents and family members, who have supported me
all my life. Without them, I would not be here today.
v
ABSTRACT
Water quality index (WQI) provides a convenient means of summarizing large
numbers of water quality data, facilitating its communication to a general audience and
will aid in establishment of priorities by providing quantitative data on overall water
quality in regularly sampled water bodies. Large volume of continuous time series water
quality data can be readily available due to automated continuous water quality
monitoring of DOE/ASMA. Raw data obtained from DOE/ASMA for Sungai Rompin,
Skudai and Klang from year 1998 to 2002 is analyzed using DOE WQI method and
Harkin’s WQI method. Average WQI from the study are: Sungai Rompin DOE 81.65 /
Harkins 9.76; Sungai Skudai DOE 67.33 / Harkins 10.80 ; Sungai Klang DOE 51.54 /
Harkins 9.63. DOE WQI show that Sungai Rompin is clean river, Sungai Skudai is
slightly polluted and Sungai Klang is polluted river. However, Harkin’s WQI is not able
to provide the observation as DOE WQI. This indicate that DOE WQI is more sensitive
to data changes and provide better insight of river condition compared to Harkin’s WQI.
Correlation value, r2 calculated using Microsoft excel obtained for Sungai Rompin is
0.25, Sungai Skudai is 0.59 and Sungai Klang is 0.43. However, weak or marginally
significant correlation does not necessary indicate lack of agreement as to what
constitutes good or poor water quality because of Harkin’s WQI calculation. Harkin’s
WQI dependant on the control vector chosen for the Sn calculation. This is the major
hindrance of Harkin’s WQI because the Sn data need to be computed whenever there is
new data added to be computed. The control vector chosen also will affect the overall
observation because by using different data as the control vector, the whole Harkin’s
WQI data will be change. DOE WQI is more dependants on dissolved oxygen (DO)
data because it has the highest weighing compared to other parameter. Current DOE
WQI method still the preferred simplify method to share data with public. However,
there is way to further improve on the water quality information to the authority or
public for management.
vi
ABSTRAK
Indek kualiti air (WQI) adalah satu cara yang mudah untuk meringkaskan data
kualiti air yang banyak, memudahkan komunikasi dengan orang awam dan membantu
program pengendalian kualiti air dalam pemilihan. Data kualiti air yang banyak sedia
ada disebabkan terdapat pengumpulan data dari masa ke semasa dengan sistem
automatik kualiti air DOE/ASMA.
Data kasar diperolehi dari DOE/ASMA untuk
Sungai Rompin, Skudai dan Klang dari tahun 1998 ke 2002, dianalisa dengan
menggunakan cara pengiraan DOE WQI dan Harkin WQI. Purata WQI dari pengiraan
adalah: Sungai Rompin DOE 81.65 / Harkins 9.76; Sungai Skudai DOE 67.33 / Harkins
10.80 ; Sungai Klang DOE 51.54 / Harkins 9.63. DOE WQI menunjukkan bahawa
Sungai Rompin adalah bersih, Sungai Skudai sederhana tercemar dan Sungai Klang
adalah tercemar.
Walaubagaimanapun, Harkin’s WQI tidak dapat menunjukkan
pemerhatian yang sama. Ini menunjukkan DOE WQI adalah lebih sensitif kepada data
dan memberi keadaan sungai yang lebih tepat berbanding dengan Harkin’s WQI. Data
kolerasi, r2 dikira menggunakan ‘Microsoft excel’ untuk Sungai Rompin adalah 0.25,
Sungai Skudai adalah 0.59 dan Sungai Klang adalah 0.43. Walaubagaimanapun, korelasi
yang lemah tidak semestinya menunjukkan kualiti air yang sebenar disebabkan
pengiraan Harkin WQI yang bergantung kepada vektor kontrol yang dipilih untuk
pengiraan Sn. Ini adalah satu halangan besar untuk indek Harkin kerana data Sn perlu
dikira setiap kali data yang baru ditambah. Vektor kontrol yang dipilih juga akan
memberi kesan kepada pemerhatian keseluruhannya kerana dengan vektor control yang
berlainan, data Harkin WQI akan bertukar. DOE WQI adalah lebih bergantung kepada
data oksigen terlarut (DO) dan menyebabkan ianya memberi nilai yang paling tinggi
berbanding dengan parameter lain. Cara pengiraan sekarang menggunakan DOE WQI
masih digalakkan sebagai satu cara untuk berkongsi data terutama dengan orang awam.
Walaubagaimanapun, terdapat cara yang lebih baik untuk terus memperbaiki informasi
kualiti air untuk penguatkuasa dan orang awam.
vii
TABLE OF CONTENTS
CHAPTER
1
TITLE
PAGE
TITLE PAGE
i
DECLARATION
ii
DEDICATION
iii
ACKNOWLEDGEMENTS
iv
ABSTRACT
v
ABSTRAK
vi
TABLE OF CONTENTS
vii
LIST OF TABLES
xi
LIST OF FIGURES
xii
LIST OF SYMBOLS
xvi
LIST OF APPENDICES
xvii
INTRODUCTION
1
1.1
Major Water Quality Issues in Rivers
2
1.1.1 Changes in physical characteristics
2
1.1.2 Faecal comtamination
2
1.1.3 Organic matters
3
viii
2
1.1.4 River eutrophication
3
1.1.5 Salinisation
4
1.1.6 Acidification
5
1.1.7 Trace elements
5
1.1.8 Nitrate pollution
5
1.1.9 Organic micropollutants
6
1.1.10 Changes in river hydrology
6
1.2
Water Resources Management in Malaysia
7
1.3
Study Area Overview
9
1.4
Problem Statement
9
1.5
Importance of Study
10
1.6
Study Objectives
11
1.7
Scope of Study
11
LITERATURE REVIEW
12
2.1
DOE WQI
13
2.1.1
Dissolved Oxygen (DO)
13
2.1.2
Biochemical Oxygen Demand (BOD)
14
2.1.3
Chemical Oxygen Demand (COD)
15
2.1.4
Ammoniacal Nitrogen (NH3N)
15
2.1.5
Suspended Solid (SS)
15
2.1.6
pH
16
2.2
Harkin’s DOE
17
ix
2.2.1
2.3
3
4
Phosphate
17
Other Index Number System
18
2.3.1
Horton (1965)
18
2.3.2
Ross (1977)
22
2.3.3
House and Ellis (1987)
23
2.3.4
Other researchers
24
METHODOLOGY
27
3.1
DOE WQI Method
27
3.2
Harkin’s WQI Method
29
RESULTS AND DISCUSSION
32
4.1
32
Sungai Rompin
4.1.1 Discussion of Data from River Basin
Rompin, Pahang
32
4.1.2 Correlation data between DOE and
Harkin’s WQI
37
4.1.3 Overall Correlation data between DOE
and Harkin’s WQI from Year 1998 to 2002
4.2
Sungai Skudai
40
41
4.2.1 Discussion of Data from River Basin
Skudai, Johor
4.2.2 Correlation data between DOE and
41
x
Harkin’s WQI
46
4.2.3 Overall Correlation data between DOE and
Harkin’s WQI from Year 1998 to 2002
4.3
Sungai Klang
50
52
4.3.1 Discussion of Data from River Basin
Klang, Selangor/ Wilayah Persekutuan
52
4.3.2 Correlation data between DOE and
Harkin’s WQI
56
4.3.3 Overall Correlation data between DOE and
5
Harkin’s WQI from Year 1998 to 2002
61
CONCLUSIONS AND RECOMMENDATIONS
63
5.1
65
Monitoring improvement suggestion
REFERENCES
68
APPENDIX
71
xi
LIST OF TABLES
TABLE NO.
TITLE
PAGE
1.1
Definition of Classes for INWQS
7
1.2
Excerpt of Interim National Water Quality Standards (INWQS)
8
2.1
Quality characteristic and rating scales for development of water
21
quality index
2.2
The four water uses for index score
25
4.1
The relationship of DOE WQI to Harkins WQI for Rompin Year
41
1998-2002 using correlation calculation
4.2
The relationship of DOE WQI to Harkins WQI for Skudai Year
51
1998-2002 using correlation calculation
4.3
The relationship of DOE WQI to Harkins WQI for Klang Year
62
1998-2002 using correlation calculation
5.1
Water Quality Status for one of the river basin at Sabah
64
(Year 2002)
5.2
The determinands included within the four independent indices
66
xii
LIST OF FIGURES
FIGURE NO.
1.1
TITLE
Theoritical variations in O2 and pH associated with algal
PAGE
4
production in a eutrophic river (P production; R respiration)
2.1
The equilibrium of different forms of phosphate in relation to
17
the pH of pure freshwaters
4.1
WQI Vs. Month for Rompin Year 1998
33
4.2
WQI Vs. Month for Rompin Year 1999
33
4.3
WQI Vs. Month for Rompin Year 2000
34
4.4
WQI Vs. Month for Rompin Year 2001
34
4.5
WQI Vs. Month for Rompin Year 2002
35
4.6
Summary of five years data’s DOE WQI Vs. Month for Rompin
36
4.7
Summary of five years data’s Harkin’s WQI Vs. Month for
36
Rompin
4.8
The relationship of DOE WQI to Harkins WQI for Rompin
37
Year 1998
4.9
The relationship of DOE WQI to Harkins WQI for Rompin
38
Year 1999
4.10
The relationship of DOE WQI to Harkins WQI for Rompin
38
xiii
Year 2000
4.11
The relationship of DOE WQI to Harkins WQI for Rompin
39
Year 2001
4.12
The relationship of DOE WQI to Harkins WQI for Rompin
39
Year 2002
4.13
The relationship of DOE WQI to Harkins WQI for Rompin
40
Year 1998-2002
4.14
WQI Vs. Month for Skudai Year 1998
42
4.15
WQI Vs. Month for Skudai Year 1999
42
4.16
WQI Vs. Month for Skudai Year 2000
43
4.17
WQI Vs. Month for Skudai Year 2001
43
4.18
WQI Vs. Month for Skudai Year 2002
44
4.19
Summary of five years data’s DOE WQI Vs. Month for Skudai
45
4.20
Summary of five years data’s Harkin’s WQI Vs. Month for
45
Skudai
4.21
The relationship of DOE WQI to Harkins WQI for Skudai
46
Year 1998
4.22
The relationship of DOE WQI to Harkins WQI for Skudai
47
Year 1999
4.23
The relationship of DOE WQI to Harkins WQI for Skudai
47
Year 2000
4.24
The relationship of DOE WQI to Harkins WQI for Skudai
Year 2001
48
xiv
4.25
The relationship of DOE WQI to Harkins WQI for Skudai
48
Year 2002
4.26
The relationship of DOE WQI to Harkins WQI for Skudai
49
Year 2001 after change control vector using maximum Sn
from the 1st calculation of 22.79
4.27
The relationship of DOE WQI to Harkins WQI for Skudai
51
Year 1998-2002.
4.28
WQI Vs. Month for Klang Year 1998
52
4.29
WQI Vs. Month for Klang Year 1999
53
4.30
WQI Vs. Month for Klang Year 2000
53
4.31
WQI Vs. Month for Klang Year 2001
54
4.32
WQI Vs. Month for Klang Year 2002
54
4.33
Summary of five years data’s DOE WQI Vs. Month for Klang
55
4.34
Summary of five years data’s Harkin’s WQI Vs. Month for
56
Klang
4.35
The relationship of DOE WQI to Harkins WQI for Klang
57
Year 1998
4.36
The relationship of DOE WQI to Harkins WQI for Klang
57
Year 1999
4.37
The relationship of DOE WQI to Harkins WQI for Klang
58
Year 2000
4.38
The relationship of DOE WQI to Harkins WQI for Klang
Year 2001
58
xv
4.39
The relationship of DOE WQI to Harkins WQI for Klang
59
Year 2002
4.40
The relationship of DOE WQI to Harkins WQI for Klang
60
Year 2000 after change control vector using maximum Sn
from the 1st calculation of 22.87
4.41
The relationship of DOE WQI to Harkins WQI for Klang
60
Year 2000 after change control vector using median Sn
from the 1st calculation of 12.05
4.42
The relationship of DOE WQI to Harkins WQI for Klang
Year 1998-2002
62
xvi
LIST OF SYMBOLS
P
-
Production
R
-
Respiration
C
-
Characteristic by the appropriate weighting factor (W)
W
-
Weighting factor
M1
-
Temperature
M2
-
Obvious pollution
µ
-
Micro
x
-
Concentration in mg/l for all parameters except pH
Ri
-
Variance
p
-
Number of parameters being used
n
-
Number of observations plus the number of control points
k
-
Number of ties encountered
Rc
-
Rank of the control value
Sn
-
Standardized distance
r2
-
Correlation
xvii
LIST OF APPENDICES
APPENDIX
A
TITLE
PAGE
Water Quality Standard
71
A1
Interim National Water Quality Standards for Malaysia
71
A2
DOE Water Quality Index Classification
73
A3
DOE Water Quality Classification Based on Water Quality
74
Index
B
Water Monitoring Raw Data
75
B1
Rompin 1998
75
B2
Rompin 1999
87
B3
Rompin 2000
95
B4
Rompin 2001
103
B5
Rompin 2002
111
B6
Skudai 1998
119
B7
Klang 1998
131
xviii
CHAPTER 1
INTRODUCTION
Water is the essential need for life. The demand for clean and portable water has
increased tremendously due to rapid development and a growing population.
To
preserve water quality and quantity, it is necessary to obtain data from regularly
sampling at predetermined stations for in-situ and laboratory analysis. This information
permits one to establish priorities with regards to preservation and quality control in the
country.
Rivers are the most important freshwater resource for man. Major river water
uses such as sources of drinking water supply, irrigation of agricultural lands, industrial
and municipal water supplies, industrial and municipal waste disposal, navigation,
fishing, boating and body contact recreation.
Upstream use of water must only be undertaken in such a way that is does not
affect water quantity, or water quality, for downstream users. Use of river water is,
therefore, the subject of major political negotiations at all levels. Consequently, river
water managers require high quality scientific information on the quantity and quality of
the waters under their control. Provision of this information requires a network of river
monitoring stations in order to:
a)
establish short- and long-term fluctuations in water quantity in relation to basin
characteristics and climate;
b)
determine the water quality criteria required to optimize and maintain water uses;
2
c)
determine seasonal, short- and long-term trends in water quantity and quality in
relation to demographic changes, water use changes and management
interventions for the purpose of water quality protection.
As with all freshwater systems, river quality data must be interpreted within the
context of a basic understanding of the fluvial and river basin processes with control the
underlying characteristics of the river system. Similarly, the design of the monitoring
network, selection of sampling methods and variables to be measured must be based on
an understanding of fluvial processes as well as the requirement for water use.
1.1 Major water quality issues in rivers
1.1.1 Changes in physical characteristics
Temperature, turbidity and total suspended solids (TSS) in rivers can be greatly
affected by human activities such as agriculture, deforestation and the use of water for
cooling.
1.1.2 Faecal contamination
Feacal contamination is still the primary water quality issue in rivers, especially in
many developing countries where human and animal wastes are not yet adequately
collected and treated. Although this applies to both rural and urban areas, the situation is
probably more critical in fast-growing cities where the population growth rate still far
exceeds the rate of development of wastewater collection and treatment facilities.
3
1.1.3 Organic matters
The release into rivers of untreated domestic or industrial wastes high in organic
matter results in a marked decline in oxygen concentration (sometimes resulting in
anoxia) and a release of ammonia and nitrite downstream of the effluent input. The
effects on the river are directly linked to the ratio of effluent load to river water
discharge. The most obvious effect of organic matter along the length of the river is the
“oxygen-sag curve” which can be observed from a few kilometres to 100 km
downstream of the input. When monitoring for the effects of organic matter pollution,
stations should be located in the middle of the oxygen-sag curve (if the worst conditions
are being studied) or at the beginning of the recovery zone, depending on the objectives
of the programme (Chapman, 1996).
1.1.4 River eutrophication
Eutrophication which is nutrient enrichment leading to increased primary
production was observed mostly in lakes and reservoirs. Eutrophication can result in
marked variations in dissolved oxygen and pH in rivers during the day and night.
During the daylight, primary production (P) far exceeds the bacterial decomposition of
algal detritus (R), and O2 over-saturation may reach 200 per cent or more, with pH
values in excess of 10 during the early afternoon. During the night, this pattern is
reversed and O2 levels may fall to 50 per cent saturation and the pH may fall below 8.5
(Figure 1.1) (Chapman, 1996).
4
Figure 1.1 : Theoritical variations in O2 and pH associated with algal production in
a eutrophic river - P production; R respiration (Chapman, 1996)
When respiration levels become greater than the primary production (i.e. R > P) in
the downstream reaches of rivers, or in their estuaries, the O2 concentration can decline
dramatically. Occasionally this can result in total anoxia, as in some turbid estuaries
during the summer period.
Diel variations in water quality cause major problems for monitoring and
assessment of eutrophic rivers. Sampling at a fixed time of the day can lead to a
systematic biasin recorded O2 and pH levels. Although chlorophyll and nutrients may
also show some fluctuations in concentrations, these are generally within 20 per cent of
the daily mean.
1.1.5 Salinisation
Increased mineral salts in rivers may arise from several sources: (i) release of
mining wastewaters (ii) certain industrial wastewaters (iii) increased evaporation and
evapotranspiration in the river basin resulting from reservoir construction, irrigation
returns, etc.
5
1.1.6 Acidification
Acidification can occur in running waters as a result of: (i) direct inputs of acidic
wastewaters from mining or from specific industries, either as point sources (e.g. sewers)
or diffuse sources (e.g. leaching of mine tailings), and (ii) direct inputs through acidic
atmospheric deposition, mainly as nitric and sulphuric acids resulting mostly from motor
exhausts and fossil fuel combustion. In the latter case, acidification of surface waters
may only take place if the buffering capacity of the river basin soil is very low. Low
buffering capacity mainly occurs in areas of non-carbonate detrital rocks, such as
sandstones, and of crystalline rocks such as granites and gneisses.
1.1.7 Trace elements
Trace element pollution results from various sources, mostly: (i) industrial
wastewaters such as mercury from chlor-alkali plants, (ii) mining and smelter wastes,
such as arsenic and cadmium, (iii) urban run-off, particularly lead, (iv) agricultural runoff (where copper is still used as a pesticide), (v) atmospheric deposition, and (vi)
leaching from solid waste dump.
1.1.8 Nitrate pollution
Urban wastewaters and some industrial wastes are major sources of nitrate and
nitrile. However, in regions with intensive agriculture, the use of nitrogen fertilizers and
discharge of wastewaters from the intensive indoor rearing of livestock can be the most
significant sources.
Heavy rain falling on exposed soil can cause substantial leaching of nitrate, some
of which goes directly into rivers, but most of which percolates into the groundwater
from where it may eventually reach rivers if no natural denitrification occurs.
6
1.1.9 Organic micropollutants
Organic micropollutants (mostly synthetic chemicals manufactured artificially)
are becoming a critical water quality issue in developed and developing countries. They
enter rivers : (i) as point sources directly from sewers and effluent discharges (domestic,
urban and industrial sources), (ii) as diffuse sources from the leaching of solid and liquid
waste dumps or agricultural lan run-off, or (iii) indirectly through long-range
atmospheric transport and deposition. Agriculture is a major source of new chemical
pollutants to rivers, such as pesticides. The approach to monitoring these substances
depends mostly on their properties, i.e. volatility, water solubility, solubility in lipids,
photodegradation, biodegradation, bioaccumulation, etc.
1.1.10 Changes in river hydrology
Many human activities, directly or indirectly, lead to modification of the river and
its valley which produce changes in the aquatic environment without major changes in
the chemical characteristics of the river water.
Such changes can lead to loss if
biological diversity and, therefore, biological monitoring techniques are most
appropriate in these situations, supported by careful mapping of the changes in the river
bed and banks.
Major modifications to river systems include changes to depth and width for
navigation, flood control ponds, reservoirs for drinking water supply, damming for
hydroelectric power generation, diversion for irrigation, and canalization to prevent loss
of flood plains of agricultural importance due to river meandering. All of these affect
the hydrology and related uses of the river system.
7
1.2
Water Resource Management in Malaysia
In Malaysia, the Department of Environment (DOE) started monitoring of river
water quality in 1978, initially establish water quality baselines and subsequently to
detect water quality changes and identify pollution sources. Samples had been regularly
taken at predetermined stations for in-situ and laboratory analysis and data interpretation
in terms of physico-chemical and biological characteristics.
The water quality appraisal is based on the Water Quality Index (WQI) consisting
of parameters such as Dissolved Oxygen (DO), Biochemical Oxygen Demand (BOD),
Chemical Oxygen Demand (COD), Ammoniacal Nitrogen (NH3N), Suspended Solids
(SS) and pH. The WQI serves as a basis for environmental assessment of a watercourse
in relation to pollution load categorization and designation of classes of beneficial uses
as provided for under the Interim National Water Quality Standards for Malaysia
(INWQS). (Department of Environment, 2005). INWQS is divided into 5 classes, Class
1 being the cleanest and Class V being the most polluted.
Table 1.1 : Definition of Classes for INWQS
Class
CLASS I
:
CLASS IIA :
CLASS IIB
CLASS III
:
:
CLASS IV
CLASS V
:
:
Uses
Conservation of natural environment Water Supply 1 – practically
no treatment necessary (except by disinfection or boiling only).
Fishery 1 – very sensitive aquatic species
Water Supply II – conventional treatment required.
Fishery II – sensitive aquatic species
Recreational use with body contact
Water Supply III – extensive treatment required.
Fishery III – common, of economic value, and tolerant species;
livestock drinking
Irrigation
None of the above
8
Table 1.2 : Excerpt of Interim National Water Quality Standards (INWQS)
PARAMETERS
Ammoniacal
Nitrogen
BOD
COD
DO
pH
Colour
Elec.
Conductivity
Floatables
Odour
Salinity (%)
Taste
Total Dissolved
Solid
Total Suspended
Solid
Temperature (C)
Turbidity (NTU)
Faecal
Coliform**
Total Coliform
UNIT
I
0.1
IIA
0.3
IIB
0.3
CLASS
III
0.9
IV
2.7
V
>2.7
1
10
7
6.5 –
8.5
15
1000
3
25
5-7
6-9
3
25
5-7
6-9
6
50
3-5
5-9
12
100
<3
5-9
>12
>100
<1
-
150
1000
150
-
-
6000
-
mg/L
N
N
0.5
N
500
N
N
1
N
1000
N
N
N
-
-
2
4000
-
mg/L
25
50
50
150
300
300
o
-
-
-
NTU
counts/
100mL
counts/
100mL
5
10
Normal
+2oC
50
50
100
400
100
5000
mg/L
mg/L
mg/L
mg/L
TCU
umhos/
cm
%
C
Normal
+2oC
5000
(20000)a
5000 50000
5000
(20000)a
50000
>50000
Notes
N : No visible floatable materials or debris, No objectionable odour; No objectionable
taste
* : Related parameters, only one recommended for use
** : Geometric mean
a : Maximum not to be exceeded
9
1.3
Study Area Overview
In 1960s onwards, efforts were made from a few individual to find a suitable,
reliable and rapid manner of classifying a water body for different purposes, which led to
the development of the “Water Quality Indices or Water Quality Index”. Since then,
different indices have been developed (Horton, 1965; Harkins, 1974).
Water quality index provides a convenient means of summarizing complex water
quality data and facilitating its communication to a general audience. Utilization of the
water quality index will help staff, lawmakers, and the public to evaluate progress being
made in water quality management programs and will aid in establishment of priorities
by providing quantitative data on overall water quality in regularly sampled water bodies.
The index should allow staff to readily interpret and evaluate regularly generated
laboratory data, recognize trends or problem areas, and optimize sampling location and
frequency.
1.4
Problem Statement
In Malaysia, automated continuous water quality monitoring of DOE/ASMA have
proven to be cost effective means for measuring the real time water quality status of
rivers. By this means, large volume of continuous time series water quality data can be
readily available for more effective pollution control and for a better understanding of
the dynamics of water quality changes in the river.
DOE has taken some steps in adopting a WQI system for the evaluation of the
past and present water quality status, but there remain several important aspects to be
studied further before effective application is possible.
10
Harkin’s WQI calculation method is used to compare with DOE WQI because
Harkin’s method can be considered as the first type of water quality index calculation
method and it has been used for studies since then.
DOE WQI is using six parameters whereas Harkins’ WQI is using four parameters
where three of the four parameters are the same as DOE WQI method. The calculation
method also different which will provide insight of different findings based on different
WQI method.
1.5
Importance of Study
The importance of this study draws parallel to the purpose of better understanding
of water quality index and viewed in their proper context. The value of a water quality
index scale is to impart information of trends in water quality in a non-technical manner
and to help pinpoint river stretches which have altered significantly in quality and which,
if necessary, can be investigated in greater detail.
A good water quality index will provide a clearer picture of the river water quality
to public. Water quality index will act as indicators of water quality changes and also
indicate the effects of these changes on potential water use. Large sum of money
invested annually will be worthwhile since it will provide a meaningful usage.
Reducing a large quantity of data to a single number index will allow more
meaningful comparison to be made and integrate the effects of the various pollutions
presents. Single number also can be used as education to country’s younger generation
as one of the method to prevent further river pollution due to mankind.
11
1.6
Study Objectives
The objectives of this study as follows:
1.
To interprete water quality raw data from ASMA using 2 types of WQI
calculation methods i.e. Harkins method and DOE method;
2.
To detect annual cycles and trends in the surface water quality;
3.
To observe the WQI data and illustrate the importance of accurate WQI method
used for information sharing to government and public.
1.7
Scope of Study
To achieve the preset objectives above, several goals are set:
1.
Study the water quality status published by DOE yearly and identify three suitable
river basin – clean, slightly polluted and polluted river basins;
2.
Request data from ASMA for the above three river basins from year 1998 to 2002
on dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen
demand (COD), suspended solid (SS), acidity/alkalinity (pH), ammoniacal
nitrogen (NH3-N) and total phosphate (PO4);
3.
Calculation of WQI using Harkins method and DOE method;
4.
Analyze calculated data and compare 2 different index.
CHAPTER 2
LITERATURE REVIEW
Water quality index (WQI) allows water quality to be quantified by reducing a
large quantity of data to a single number in a simple, objective and reproducible manner.
WQI also act as an indicator of water quality change and can also indicate the effects of
these changes on potential water use.
Indexing system have specific advantages (House and Newsome, 1989):
a)
Enables large numbers of water quality data to be reduced to a single index value
in an objective, rapid and reproducible manner.
b)
An index can provide information on within class variations in quality which are
of particular importance where class or use threshold value are approached
because of the numeric scale. In this way, an index can be used to pin-point
reaches on a spatial and temporal basis which have altered significantly in quality,
but insufficiently to merit a change of class within a classificatory system.
c)
Index scores are unambiguous, precisely indicating quality rather then the
approximation provided by a classificatory system. This is of considerable system
may be used in the development of river quality objectives. If there are to be
realistic and meaningful, they must be based on accurate assessment of the current
water quality.
d)
An index may be used to assess the economic potential of surface waters through
a consideration of the potential water uses associated with its index score.
Similarly, a change in the economic potential can be inferred from an increase or
decrease in the index score.
13
e)
As these indices have been developed in accordance with recognized, and often
legally accepted water quality standards and criteria, they may be used by
operational management to identify surface waters requiring priority action to
improve them.
f)
An index may also be used at the directorate level or for the provision of
information to the layman in simple but approximate terms by dividing the index
scores into broader classes, while at the same time maintaining the initial
precision.
g)
The provision of both general and use-related indices, together with the
development of indices of toxicity, make available a comprehensive and precise
picture of water quality to operational management, the directorate level and the
public at large. They provide more specific information upon which water quality
managers may base their decisions and afford a more precise evaluation of the
outcome of those decisions.
2.1 DOE WQI
The Water Quality Index (WQI) used by DOE Malaysia is using best fit equations
to estimate subindex. All the calculated subindex are then sum up after multiply by
specific weighting for all the parameter.
It consist of six (6) parameters - Dissolved Oxygen (DO), Biochemical Oxygen
Demand (BOD), Chemical Oxygen Demand (COD), Ammoniacal Nitrogen (NH3N),
Suspended Solids (SS) and pH.
2.1.1 Dissolved Oxygen (DO)
Oxygen is essential to all forms of aquatic life, including those organisms
responsible for the self-purification processes in natural waters. Low levels of DO are
14
indicative of greater pollution in the river. Dissolved oxygen can also be expressed in
terms of percentage saturation, and levels less than 80 per cent saturation in drinking
water can usually be detected by consumers as a results of poor odour and taste
(Chapman, 1996).
Dissolved oxygen is a good indicator of the overall ecological health of a river.
Although other indicators also signify general river health, an adequate supply of oxygen
is essential for animal life. For many species of fish, Do levels below 6 mg/L for any
length if time can be lethal (Laenen and Dunnette, 1997).
2.1.2 Biochemical Oxygen Demand (BOD)
The biochemical oxygen demand (BODn) is the mass of dissolved molecular
oxygen which is needed by microorganisms for the oxidation and conversion of organic
substances in a sample (20°C) of water under defined conditions and within a defined
period of time (index n in days and hours) (Fresenius and Schneider, 1988).
Standardised laboratory procedures are used to determine BOD by measuring the
amount of oxygen consumed after incubating the sample in the dark at a specified
temperature, which is usually 20oC, for a specific period of time, usually five days. This
gives rise to the commonly used term ‘BOD5’ (Fresenius and Schneider, 1988).
BOD measurements are usually lower than COD measurements.
Unpolluted
water typically have BOD values of 2 mg/L O2 or less, whereas those receiving
wastewaters may have values up to 10 mg/L O2 or more, particularly near to the point of
wastewater discharge. Raw sewage has a BOD of about 600 mg/L O2, whereas treated
sewage effluents have BOD values ranging from 20 to 100 mg/L O2 depending on the
level of treatment applied. Industrial wastes may have BOD values up to 25,000 mg/L
O2 (Chapman, 1996).
15
2.1.3 Chemical Oxygen Demand (COD)
The chemical oxygen demand (COD) is a measure of the oxygen equivalent of the
organic matter in a water sample that is susceptible to oxidation by a strong chemical
oxidant, such as dichromate. The COD is widely used as a measure of the susceptibility
to oxidation of the organic and inorganic materials present in the water bodies and in the
effluents from sewage and industrial plants. Similarly, it does not indicate the total
organic carbon present since some organic compounds are not oxidized by the
dichromate method whereas some inorganic compounds are oxidized. Nevertheless,
COD is a useful, rapidly measured, variable for many industrial wastes and has been in
use for several decades (Chapman, 1996).
2.1.4 Ammoniacal Nitrogen (NH3N)
The presence of ammonium ions in water is connected to the process of the
biochemical decomposition of protein substances contained in household and industrial
sewage (Chan, 2002).
2.1.5 Suspended Solids (SS)
Suspended solids are matter held in suspension in the water or wastewater and
retained by a filter (Chan, 2002). The type and concentration of suspended solids
controls the turbidity and transparency of the water. Suspended solids consists of silt,
clay, fine particles of organic and inorganic matter, soluble organic compounds,
plankton and other microscopic organisms.
Such particles vary in size from
approximately 10nm in diameter to 0.1mm in diameter (Chapman, 1996).
16
2.1.6 pH
pH is important in natural waters and in water treatment. Aquatic organisms are
sensitive to pH changes and require a pH of 6 to 9. The pH is an important variable in
water quality assessment as it influences many biological and chemical processes within
a water body and all processes associated with water supply and treatment. When
measuring the effects of an effluent discharge, it can be used to help determine the extent
of the effluent plume in the water body.
The pH is a measure of the acid balance of a solution and is defined as the
negative of the logarithm to the base 10 of hydrogen ion concentration. The pH scale
runs from 1 to 14 (i.e. very acidic to very alkaline), with pH 7 representing a neutral
condition. At a given temperature, pH (or the hydrogen ion activity) indicates the
intensity of the acidic or basic character of a solution and is controlled by the dissolved
chemical compounds and biochemical processes in the solution. In unpolluted waters,
pH is principally controlled by the balance between the carbon dioxide, carbonate and
bicarbonate ions as well as other natural compounds such as humic and fulvic acids, The
natural acid-base balance of a water body can be affected by industrial effluents and
atmospheric deposition of acid-forming substances. Changes in pH can indicate the
presence of certain effluents, particularly when continuously measured and recorded,
together with the conductivity of a water body. Variations in pH can be caused by the
photosynthesis and respiration cycles of algae in eutrophic waters. The pH of most
natural waters is between 6.0 to 8.5, although lower values can occur in dilute waters
high in organic content, and higher values in eutrophic waters, groundwater brines and
salt lakes (Chapman, 1996).
17
2.2 Harkins WQI
Harkins index gives numerical rankings for the values for each parameter which
are then related to the ranking of a selected control value for that parameter. The
information is used to compute the standardized distance that each values lies from the
control value and the distance are then sum up for each parameter to give an index of
water quality.
The WQI used by Harkins method consisting of four (4) parameters - Dissolved
Oxygen (DO), Biochemical Oxygen Demand (BOD), Phosphate (PO4) and pH.
2.2.1 Phosphate
The equilibrium of the different forms of phosphate that occur at different pH
values in pure water is shown in Figure 2.1.
Figure 2.1 The equilibrium of different forms of phosphate in relation to the pH of
pure freshwaters (Chapman, 1996)
It is recommended that phosphate concentrations are expressed as phosphorus, i.e.
mg/L PO4-P (and not as mg/L PO43-). Phosphorus is an essential nutrient for living
organisms and exists in water bodies as both dissolved and particulate species. It is
generally the limitation nutrient for algal growth and, therefore, controls the primary
18
productivity of a water body.
Artificial increases in concentrations due to human
activities are the principal cause of eutrophication.
In natural waters and in wastewaters, phosphorus occurs mostly as dissolved
orthophophates and polyphosphates, and organically bound phosphates.
Changes
between these forms occur continuously due to decomposition and synthesis of
organically bound forms and oxidized inorganic form.
Natural sources of phosphorus are mainly the weathering of phosphorus –bearing
rocks and the decomposition of organic matter. Domestic wastewaters (particularly
those containing detergents), industrial effluents and fertilizer run-off contribution to
elevated levels in surface waters.
Phosphorus associated with organic and mineral
constituents of sediments in water bodies can also be mobilized by bacteria and released
to the water column (Chapman, 1996).
2.3 Other index number system
The first attempt to devise a water quality index was made in the USA by Horton
in 1965 and incorporates eight parameters in his system and have indices ranging from 0
to 100. Since that date, Horton’s ideas have been developed and extended, principally in
the United States (Landwehr, 1976; Bolton, 1978; Deininger and Newsome,1984) and
United Kingdom (Ross, 1977; House,1987).
2.3.1 Horton (1965)
According to Horton, the steps in development of a water quality index are as
follow:
a)
Selection of quality characteristics on which the index is to be based;
b)
Establishment of a rating scale for each characteristics;
19
c)
Weighting of the several characteristics.
The selected characteristic are sewage treatment, dissolved oxygen (DO), pH,
chloroforms, specific conductance, carbon chloroform extract (CCE), alkalinity chloride,
temperature and ‘obvious pollution’. (Table 2.1).
‘Obvious pollution’ refers to conditions that are offensive to sight and smell. Such
conditions include, formation of sludge deposits, presence of oil, debris, foam, scum or
other floating materials, and discharge of wastes creating a color or odor nuisance.
Scales have been chosen so that each characteristic (with exception of temperature and
‘obvious pollution’) can be assigned a value between zero and 100 depending on
concentration or quality condition.
The objective of the system is simply to assign ratings that indicate in a
comparative way incremental improvements in quality conditions. The ratings shown
are presented for illustrative purposes.
Temperature and ‘obvious pollution’ cannot be readily be rated to show
gradations in but fall more into the category of ‘yes or no’ indicators. Because of the
wide variation in the natural temperature of streams, depending on geographic location,
it is impossible to assign rating values for different temperature levels, although it is
generally acknowledged that the cooler water is the better. A temperature of 93°F (34°C)
is taken as a cut-off point.
With regard to the amount of adjustment for temperature it is suggested that the
quality index be taken as one-half of the index determined on the basis of other
characteristics. This is the same procedure for ‘obvious pollution’ where if the obvious
pollution has been eliminated, no adjustment is made; if obvious pollution still exists, the
index is taken as one-half.
The next step in development of a quality index is a weighting of the
characteristics to show their relative importance. In the case of temperature and obvious
pollution, this step has already been taken by assignment of coefficients for adjusting the
index downward whenever conditions do not meet specified standards.
20
The remaining eight characteristics, upstream sewage treatment, dissolved oxygen
and pH are considered to be of equivalent importance and of more weight than any of
the others. Concentration of coliform organisms is considered to be next in significance;
following by specific conductance, CCE, alkalinity and chloride.
Table 2.1 show suggest weighting factors to be considered. After all the three
steps completed, all the various elements is combined into a single index number by
using a simple cumulative formula as shown in Table 2.1.
As indicated by the formula, the water quality index is calculated by:
a) Multiplying the ratings points for each characteristic (C) by the appropriate weighting
factor (W);
b) Adding the weighted rating points and dividing the total by the sum of the weighting
factors;
c) Multiplying the quotient thus determined by appropriate coefficients (M) to adjust for
temperature and ‘obvious pollution’ conditions.
21
Table 2.1 : Quality characteristic and rating scales for development of water
quality index (Horton, 1965)
Sewage treatment
(% pop. Served)
Rating
pH
Rating
Sp. Cond. (µ
ohms)
Rating
95-100
100
6-8
100
0-750
100
80-95
80
5-6; 8-9
80
750-1,500
80
70-80
60
4-5; 9-10
40
1,500-2,500
40
60-70
40
<4; >10
0
>2,500
0
50-60
20
<50
0
DO (% saturation)
Rating
Coliform
(MPN/100 mL)
Rating
CCE (1 X 103
ng/l)
Rating
>70
100
<1,000
100
0-100
100
50-70
80
1,000-5,000
80
100-200
80
30-50
60
5,000-10,000
60
200-300
60
10-30
30
10,000-20,000
30
300-400
30
<10
0
>20,000
0
>400
0
Alkalinity (mg/L)
Rating
Chloride
(mg/L)
Rating
Coefficient
20-100
100
0-100
100
Temperature (M1) 1 or ½
50-20; 100-200
80
100-175
80
0-5; >200
40
175-250
40
Obvious pollution (M2) 1 or
½
Acid
0
>250
0
Weighting
Sewage treat
4
DO
4
pH
4
Coliforms
2
Sp. Cond.
1
CCE
1
Alkalinity
1
Chloride
1
Q1 =
C1W1 + C2W2 + …+ CnWn M1M2
W1 + W2 +…+ Wn
22
2.3.2 Ross (1977)
Quality indices were calculated for selected points on six rivers within River
Clyde catchment area, using annual average results from 1966 to 1974 in Ross (1977)
studies. At the same time, Ross evaluated the effects of flow on the selected parameters
on two sites (polluted and clean sources) over a two-year period. The results were fairly
widely scattered but did show some general trends:
1.
SS concentration increased with increase in flow, particularly under spate
conditions.
2.
DO concentration increased at higher flows in the polluted source, but showed no
correlation in the well aerated clean source.
3.
Ammoniacal N concentration was inversely proportional to flow in the polluted
source but again there is no correlation in the clean source.
4.
There is no general correlation between BOD and flow in either river.
Apart from that, Ross also did a comparison between chemical quality indices and
biotic indices. One particular advantage of the biotic index is that it is likely to provide
evidence of intermittent discharges or the presence of toxic compounds which may be
missed by routine chemical sampling and analysis. However, any comparison between
water quality and macro-invertebrates must be done with caution because the latter are
greatly affected by physical as well as chemical conditions, e.g. whether the stream bed
is stony or muddy and whether high flows may have carried clean species into a polluted
zone. A further difference is that the biotic index is calculated from samples collected
twice a year as opposed to twelve times a year for the chemical analyses.
However, from a knowledge of the rivers and the type of pollution which occurs,
the following general conclusions may be drawn from the results :
1.
Where rivers are relatively free from pollution, values of 9-10 correspond to
values of 7-10 for biotic index.
23
2.
Where organic pollution occurs, quality index of 5-6 correspond to biotic index of
about 4-6.
3.
Where gross organic pollution occurs, with values of 2-4 for the quality index, the
biotic index being 2-3.
2.3.3 House and Ellis (1987)
House and Ellies have presented a developed index which is based on nine
physio-chemical and biological determinands which were adopted following a series of
rigorous selection criteria.
The concentrations for each selected determinands were
transformed to the same units using a series of rating curves which related each
determinand concentration to a 10 to 100 index scale. A score of 10 equates water quality
to crude sewage whereas a score of 100 reflects water of pristine purity.
A score of ten was selected as the base for the WQI in reference to zero because
this index considers all potential water uses and economic objectives. Thus, though a
water body may be severely polluted it can still be said to possess an intrinsic economic
value as a form of transportation or navigation and therefore should not be zero rated. It
is also considered that no additional managerial information could be provided by
extending the WQI scale from ten to zero. Apart from potential use, which would remain
the same, the only other information provided would be an assessment of the cost of
upgrading such waters. In most instances water attaining a score of ten will already
require advanced treatment. Thus, the additional upgrading costs resulting from any
further deterioration in quality will be marginal, and therefore do not merit the index
range extended to zero.
24
2.3.4 Other researchers
Five indices is compared from Landwehr (1976) studies which each index is
evaluated on how well it predicts its rankings compared to the judgement of a group of
water experts. For this purpose, a panel of over 100 water experts was asked to rate 20
water samples from different rivers from USA on a numerical scale from zero (worst) to
100 (best). By observing the absolute value of the rank order correlation coefficients,
one can established an order of agreement between the indices and the experts’ mean
ratings. From the study, it shows that all five indices evaluated correlates well with
mean ratings given by a panel of experts, as well as with each others. Harkins’ index is
least agreement with the experts’ opinions compared between the five indices.
In order to determine the variability of water quality assessment, a survey of
opinion was made among river purification board staff in Scotland. Analytical data
relating to 93 samples were supplied covering 12 parameters of general quality which
are most frequently monitored, and experienced staff were invited to assign a numerical
value to the quality of each samples, ranging from 100 (excellent quality) to zero
(Bolton, 1978).
The same method is also evaluated by Deininger and Newsome (1984) where they
performed comparison of response on 20 water samples between US and UK expert and
also compare it with a calculated water quality index. From the study, there seem to be
reasonable agreement between US and UK experts except UK ratings were consistently
lower than the US ratings for low water quality samples.
Possible reasons for this disparity of view are because ammonia was one of the
parameters considered by UK experts whereas it was judged to be too low by the US
experts:
1.
UK rivers are generally smaller and shorter than their US counterparts and the
opportunity for nitrification in the river between abstraction points therefore less.
25
2.
Water is used more extensive at UK due to greater population density compared to
US, and thus ammonia, as an indicator of recent pollution is an important
parameter.
The development of a better system for indexing water quality and its application
to four water use classes i.e. bathing, water supply, fish spawning and general use class
is described by Smith (1990). Detailed description of these is presented in Table 2.2.
Protection of aquatic life is included in all of the classes. To ensure that the index score
is useful and does not hide important information, the water quality variable giving the
lowest score has been employed to produce the final index score.
Table 2.2 : The four water uses for index score
Class
General
Bathing
Water supply
Fish spawning
Uses
This is water for general use purposes. These waters have no
principle use, but are subject to completing uses. They would be
protected and maintained for the following uses:
a) the maintenance of a substantially unaltered
aquatic community
b) the general aesthetic amenity
c) fishing
d) stock watering
e) irrigation
f) public water supply after extensive treatment
g) occasional contact use such as swimming
h) waste assimilation
The proposed standards for this water classification would
generally be lower than for the specific uses.
This is water for public bathing. However, note that other uses,
and in particular aquatic life, also require protection.
This is source water for potable supply or for the preparation and
processing of food for sale for human consumption, where
treatment at least equivalent to flocculation, filtration, and
disinfection could be reasonably expected. Aquatic life is also
protected, but at a lower level than in the bathing and fish
spawning uses.
This is water specially protected for fish spawning purposes. For
simplicity, it was assumed that these waters are salmonid waters.
26
A few case study have been done by researchers on specific area (StambukGiljanovic, 1999; Pesce and Wunderlin, 2000).
Stambuk-Giljanovic (1999) describe the process of determining the water quality
index for Dalmation Country waters as well as the results of the application of the index
for water evaluation in Dalmatia (Southern Croatia) for a three year period from 1995 to
1997. He has include 9 parameters for his study.
Pesce and Wunderlin (2000) use the WQI to evaluate spatial and seasonal changes
in the water quality from the Suquia River in Cordoba City (Argentina) and nearby
locations.
CHAPTER 3
METHODOLOGY
The accuracy of any study dwells closely to the weight of the methodology used.
Two water quality index (WQI) will be used to compare for this study i.e. DOE and
Harkins.
3.1
DOE WQI Method
DOE WQI consist of six (6) parameters - Dissolved Oxygen (DO), Biochemical
Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Ammoniacal Nitrogen
(NH3N), Suspended Solids (SS) and pH. All the parameter is converted to subindex
values using best fit equations as below equations:
1.
Subindex for DO (in % saturation) : SIDO
SIDO
2.
=0
for x = < 8
= 100
for x > 92
= -0.395 = 0.030x2 – 0.00020x3
for 8 < x < 92
Subindex for BOD (SIBOD)
SIBOD
= 100.4 – 4.23x
for x < 5
= 108e-0.055x - 0.1x
for x > 5
28
3.
Subindex for COD (SICOD)
SICOD
= -1.33x + 99.1
-0.0157x
= 103e
4.
= 100.5 – 105x
for x < 0.3
= 94e-0.573x - 5 x-2
for 0.3 < x < 4
Subindex for SS (SISS)
= 97.5e-0.00676x + 0.05x
SISS
-0.0016x
= 71e
- 0.015x
=0
6.
for x > 20
Subindex for AN (SIAN)
SIAN
5.
- 0.04x
for x < 20
for x < 100
for 100 < x < 1000
for > 1000
Subindex for pH (SIPH)
SIPH
= 17.2-17.2x + 5.02x2
for x < 5.5
= -242 + 95.5x – 6.67x2
for 5.5 < x < 7
= 181 + 82.4x – 6.05x2
for 7 < x < 8.75
= 536 – 77.0x + 2.76x2
for x > 8.75
Note: x = concentration in mg/l for all parameters except pH.
Lastly, Water Quality Index (WQI) is calculated with specific weighing
corresponding parameters with a total value of 1 as below equation:
WQI = 0.22*SIDO + 0.19*SIBOD + 0.16*SICOD + 0.15*SIAN + 0.16*SISS +
0.12*SIPH
29
3.2
Harkin’s WQI Method
Harkins index is summarized in the following four steps:
1.
For each water quality parameter used, choose a minimum or maximum value as a
starting point. Approved water quality standards are such values. This vector of
values is the control observation from which standardized distances will be
computed.
2.
Rank each column of water quality parameters, including the control value. Tied
ranks are split in the usual manner.
3.
Compute the rank variance for each parameter using the equation:
k
Variance (Ri) = 1 X [(n3 – n) 12n
(tk3 – tk)]
(1)
i=1
where
i = 1, 2, …, p.
where
p = the number of parameters being used.
n = the number of observations plus the number of control points, and
k = the number of ties encountered.
These variances are used to standardize the indexes computed.
4.
For each number or observation vector, compute the standardized distance:
p
(Ri – Rc)2 / var (Ri)
Sn =
i=1
where
(2)
30
Rc = the rank of the control value.
The pH column presents some unique problems because it centers on 7.0 standard
units (su). Biologists generally agree that an acid condition is more deleterious than an
alkaline condition.
A straight ranking of raw pH values is not appropriate so a
transformation was used. The transformation consists of multiplying the absolute value
of negative differences from a pH of 7 su by 5; positive difference are unchanged, that is,
a pH of 6 su becomes 6 – 7 X 5 = 5, whereas a pH of 9 su is merely 9 – 7 = 2.
Once a power is chosen for a given series of observation vectors, it cannot be
changed. This method does not require justification of unrealistic assumptions required
by parametric analytical techniques.
The “control” vector of observations was determined according to Step 1. The
ranks of columns of parameters were done according to Step 2. Then, Step 3 and 4 were
applied, respectively. Any number of water quality parameters may be used to compute
the above index. However, ultimate use of the indexes may offer guidance in the choice
of parameters used.
For example, if a primary objective is assessing seasonal
fluctuations, then parameters that are not usually seasonally dependent should be deleted.
In comparing stations, it is advantageous to set up a control vector of observations,
and then to set up a vector of water quality standards for each stations. This will allow
station comparisons on the control vector and within station comparisons based on the
standards vector. Any Sn value greater than the standard Sn value for the corresponding
station indicated that problems exist and corrective action should be taken.
Indexes computed at different times should not be compared. In other words, Sn
values computed from 1970 and 1971 water quality data, for example, cannot be
compared with Sn values computed on 1972 data unless the total set for 1970 through
1972 is pooled and processed simultaneously. This is because the indexes are directly
31
affected by the rank variances, which are totally dependent upon n, the number of
observations. This is a major hindrance because all past work becomes irrelevant.
This index is meant for summarizing a large amount of data to present a concise
picture of overall trends. This method provides a simple, expedient method whereby one
station can be compared with another, or previous time periods from a particular station
may be compared with another time period in the same station.
This index should not be used to supplant careful evaluation of raw data on
particular stations to determine potential pollution problems. However, it may point to
the fact that problems are present when compared with other stations or times and guide
the analyst of individual parameters using the usual techniques of plotting parameter
against parameter or against time and numerical analyses.
In application, it becomes necessarily subjective, because it demands that each
researcher choose not only the standard against which comparisons are to be made, but
also the set of parameters to be compared. Thus, at one time, a fixed set of water quality
observations may have multiple quality ratings. The set may be rates against historic,
current, or suggested future standards, or by any other set of standard that user chooses
to select. Given that standard has been determined for this on set of observations,
multiple rankings may still occur because of the variety of possible choices of
parameters to be used in the process. Which of these many possible ratings will be used
for making comparisons is left to the choice of the particular user. Hence, the ability to
make comparable statements about water quality is lost.
CHAPTER 4
RESULTS AND DISCUSSION
The results from the preceding chapter enable us to hypothesis concerning the
water quality of the three river basins – Sungai Rompin, Sungai Skudai and Sungai
Klang from year 1998 to 2003.
4.1
Sungai Rompin
4.1.1 Discussion of Data from Sungai Rompin Basin, Pahang
Some of the data is not available for analysis such as not every stations data is
available for every month and sometimes there is no data for the whole month e.g. refer
to Appendix B for year 1998, month of September and December data is not available.
Refer to Figure 4.1 to 4.5 where the graph plotted for DOE and Harkin’s WQI
data versus all the sampling data for year 1998 to 2002. It shows that both the DOE and
Harkin’s WQI data is at slightly increasing trend except for year 2002 for DOE WQI.
DOE WQI shows that most of the stations monitored is clean where the WQI is more
than 81, followed by slightly polluted (WQI is between 60 to 80).
33
WQI Vs. Date/Tim e (Rom pin) 1998
DOE WQI
Harkins WQI
Linear (DOE WQI)
Linear (Harkins WQI)
100
90
80
70
WQI
60
50
40
30
20
NOV
OCT
JAN
JUN
0
AUG
10
Month
Figure 4.1 WQI Vs. Month for Rompin Year 1998.
DOE WQI
WQI Vs. Date/Tim e (Rom pin) 1999
Harkins WQI
Linear (DOE WQI)
100
Linear (Harkins WQI)
90
80
70
50
40
30
20
10
MAY
SEP
0
JAN
WQI
60
Month
Figure 4.2 WQI Vs. Month for Rompin Year 1999.
34
DOE WQI
WQI Vs. Date/Tim e (Rom pin) 2000
Harkins WQI
Linear (DOE WQI)
Linear (Harkins WQI)
100
90
80
70
WQI
60
50
40
30
20
10
SEP
MAY
JAN
0
Month
Figure 4.3 WQI Vs. Month for Rompin Year 2000.
WQI Vs. Date/Tim e (Rom pin) 2001
DOE WQI
Harkins WQI
Linear (DOE WQI)
Linear (Harkins WQI)
100
90
80
70
WQI
60
50
40
30
20
10
0
Month
Figure 4.4 WQI Vs. Month for Rompin Year 2001.
35
DOE WQI
WQI Vs. Date/Tim e (Rom pin) 2002
Harkins WQI
Linear (DOE WQI)
Linear (Harkins WQI)
100
90
80
70
WQI
60
50
40
30
20
SEP
MAY
JAN
0
FEB
10
Month
Figure 4.5 WQI Vs. Month for Rompin Year 2002.
Out of the total monitoring data of 454 from the five years, it shows that some of
the monitoring station such as station number 4RP17 (refer to Appendix B) is the most
polluted area compared to the others where there is eight data points (1.76% out of the
total data) is less than WQI 59.
Figure 4.6 and 4.7 is the summary of five years data in maximum, minimum,
average and standard deviation calculated based on available monthly data. DOE WQI
data show higher and bigger variation of standard deviation compared to Harkin’s WQI.
Data range also showing bigger variation on DOE WQI compared to Harkin’s WQI. This
observation give us the indication that DOE WQI is more sensitive to data changes and
will provide better insight of the river basin condition compared to Harkin’s WQI.
36
M IN
DOE WQI
M AX
AVERAGE
STANDARD DEVIATION
100
30
90
70
20
WQI
60
50
15
40
10
30
20
Standard Deviation
25
80
5
10
0
0
J F M A M J J A O N J MA M J S J A M J S J M M J S J F M M J S
1998
1999
2000
2001
2002
MONTH
Figure 4.6 Summary of five years data’s DOE WQI Vs. Month for Rompin.
M IN
Harkins WQI
M AX
AVERAGE
STANDARD DEVIATION
100
30
90
70
20
WQI
60
50
15
40
10
30
20
Standard Deviation
25
80
5
10
0
0
J F M A M J J A O N J M A M J S J A M J S J M M J S J F M M J S
1998
1999
2000
2001
2002
MONTH
Figure 4.7 Summary of five years data’s Harkin’s WQI Vs. Month for Rompin.
37
Another observation on the raw data refer to Appendix B, monitoring on the
colour of the river start from year 2000 onwards, the colour of the polluted river are
brown, dark brown and light black whereas for clean river, the river colour is mostly in
clear, lighter colour compared to polluted river.
4.1.2 Correlation data between DOE and Harkin’s WQI
Refer to Figure 4.8 to 4.12, the graph plotted for DOE WQI versus Harkin’s WQI
for year 1998 to 2002, all the graph showing increasing trend where DOE WQI is
proportional to Harkin’s WQI. This means that there is positive correlation between
DOE and Harkin’s WQI for the five years Sungai Rompin’s monitoring data, even
though the correlation is low.
Outliner data most probably is the caused of low
correlation. For example, refer to Figure 4.8, DOE WQI value is lower than 60 on the
three circled data but Harkin’s WQI is showing high range from 14 to 86.
DOE WQI Vs. Harkins WQI (Rom pin) 1998
DOE WQI
Linear (DOE WQI)
100
90
80
DOE WQI
70
60
50
y = 0.0307x + 79.291
40
2
R = 0.0083
30
20
10
120.00
100.00
80.00
60.00
40.00
20.00
0.00
0
Harkins WQI
Figure 4.8 The relationship of DOE WQI to Harkins WQI for Rompin Year 1998
38
DOE WQI Vs. Harkins WQI (Rom pin) 1999
DOE WQI
Linear (DOE WQI)
100
90
80
DOE WQI
70
60
50
y = 0.4006x + 75.09
40
2
R = 0.0788
30
20
10
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.9 The relationship of DOE WQI to Harkins WQI for Rompin Year 1999.
DOE WQI Vs. Harkins WQI (Rom pin) 2000
DOE WQI
Linear (DOE WQI)
100
90
80
DOE WQI
70
60
y = 0.4014x + 74.853
50
2
R = 0.0895
40
30
20
10
30.00
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.10 The relationship of DOE WQI to Harkins WQI for Rompin Year 2000.
39
DOE WQI Vs. Harkins WQI (Rom pin) 2001
DOE WQI
Linear (DOE WQI)
100
90
80
DOE WQI
70
60
y = 0.1692x + 82.888
50
2
R = 0.0124
40
30
20
10
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.11 The relationship of DOE WQI to Harkins WQI for Rompin Year 2001.
DOE WQI Vs. Harkins WQI (Rom pin) 2002
DOE WQI
Linear (DOE WQI)
100
90
80
DOE WQI
70
60
y = 0.3994x + 81.935
2
R = 0.0673
50
40
30
20
10
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.12 The relationship of DOE WQI to Harkins WQI for Rompin Year 2002.
40
4.1.3 Overall Correlation data between DOE and Harkin’s WQI from Year 1998 to
2002
Refer to Figure 4.13 where the data is plotted in one graph for DOE WQI versus
Harkin’s WQI from year 1998 to 2002. The trend line show increasing trend where
higher value of DOE WQI gives higher value of Harkin’s WQI.
Table 4.1 showing that based on the correlation (r) calculation available from
Microsoft Excel, the individual yearly correlation and overall five years correlation is
positive correlation where the overall correlation is at 0.25. Even though the correlation
value is low, but the data did show that DOE WQI is proportional to Harkin’s WQI.
DOE WQI Vs. Harkins WQI (Rom pin) 1998-2002
DOE WQI
Linear (DOE WQI)
100
90
80
DOE WQI
70
60
50
40
y = 0.3533x + 78.253
30
2
R = 0.064
20
10
35.00
30.00
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.13 The relationship of DOE WQI to Harkins WQI for Rompin Year 19982002.
41
Table 4.1 The relationship of DOE WQI to Harkins WQI for Rompin Year 19982002 using correlation calculation.
4.2
Year
Correlation, r2
1998
0.37
1999
0.28
2000
0.30
2001
0.11
2002
0.26
1998-2002
0.25
Sungai Skudai
4.2.1 Discussion of Data from Sungai Skudai Basin, Johor
Refer to Figure 4.14 to 4.18, DOE WQI decreased with duration except year 2002
whereas Harkins WQI increased with duration except year 2000. DOE WQI trend for
year 1998 until 2000 is random with cycle except some of the circled outliner data such
as 5-Aug 1998 data where the DO% saturation is low (Figure 4.14). However, there is
no obvious trend observed on Harkin’s WQI at that same time.
42
DOE WQI
WQI Vs. Date/Tim e (Skudai) 1998
Harkins WQI
Linear (DOE WQI)
Linear (Harkins WQI)
100
90
80
70
WQI
60
50
40
30
20
DEC
NO
OCT
SEP
AU
JUL
JUN
MA
APR
MA
JAN
0
FEB
10
Month
Figure 4.14 WQI Vs. Month for Skudai Year 1998.
DOE WQI
WQI Vs. Date/Tim e (Skudai) 1999
Harkins WQI
Linear (DOE WQI)
100
Linear (Harkins WQI)
90
80
70
50
40
30
20
Month
Figure 4.15 WQI Vs. Month for Skudai Year 1999.
DEC
NO
OCT
SEP
AU
JUL
JUN
MA
APR
MA
0
FEB
10
JAN
WQI
60
43
DOE WQI
WQI Vs. Date/Tim e (Skudai) 2000
Harkins WQI
Linear (DOE WQI)
100
Linear (Harkins WQI)
90
80
70
WQI
60
50
40
30
20
DEC
NO
OCT
SEP
AU
JUL
JUN
MA
APR
MA
JAN
0
FEB
10
Month
Figure 4.16 WQI Vs. Month for Skudai Year 2000.
WQI Vs. Date/Tim e (Skudai) 2001
Harkins WQI
Linear (DOE WQI)
100
Linear (Harkins WQI)
90
80
70
60
50
40
30
20
AUG
0
JUN
10
JAN
WQI
DOE WQI
Month
Figure 4.17 WQI Vs. Month for Skudai Year 2001.
44
DOE WQI
WQI Vs. Date/Tim e (Skudai) 2002
Harkins WQI
Linear (DOE WQI)
100
Linear (Harkins WQI)
90
80
70
WQI
60
50
40
30
20
NOV
JAN
0
JUN
10
Month
Figure 4.18 WQI Vs. Month for Skudai Year 2002.
Monitoring stations are being added or taken out throughout the five years data
especially for year 2001 and 2002. 10 automatic water quality monitoring stations at
strategic location along major rivers had been installed to detect water quality changes
on a continuous basis. One of the stations stated is Sungai Skudai. (Department of
Environment, 2001). DOE WQI from year 2002 improved is most probably due to the
station change whereas all the earlier monitoring of year 1998 until 2001 is at decreasing
trend.
Out of the total 522 data from the five years monitoring, it shows that there is
equally polluted, slightly polluted and cleaned area. However, the whole river is in
slightly polluted river basin status with overall WQI of 62. This indicated weakness of
water quality index and will affect decision making in river management if not probably
access.
Figures 4.19 and 4.20 is the summary of five years data in maximum, minimum,
average and standard deviation calculated based on available monthly data. DOE WQI
data show higher and bigger variation of standard deviation compared to Harkin’s WQI.
45
Data range also showing bigger variation on DOE WQI compared to Harkin’s WQI
which give the same observation as Sungai Rompin earlier.
M IN
DOE WQI
M AX
AVERAGE
STANDARD DEVIATION
100
30
90
70
20
WQI
60
50
15
40
10
30
20
Standard Deviation
25
80
5
10
0
J
F
M
A
M
J
J
A
S
O
N
D
J
F
M
A
M
J
J
A
S
O
N
D
J
F
M
A
M
J
J
A
S
O
N
D
J
F
M
A
M
J
J
A
S
O
N
D
J
F
M
A
M
J
J
A
S
O
N
D
0
1998
1999
2000
2001
2002
MONTH
Figure 4.19 Summary of five years data’s DOE WQI Vs. Month for Skudai.
M IN
Harkins WQI
M AX
AVERAGE
STANDARD DEVIATION
100
30
90
70
20
WQI
60
50
15
40
10
30
20
Standard Deviation
25
80
5
10
0
J
F
M
A
M
J
J
A
S
O
N
D
J
F
M
A
M
J
J
A
S
O
N
D
J
F
M
A
M
J
J
A
S
O
N
D
J
F
M
A
M
J
J
A
S
O
N
D
J
F
M
A
M
J
J
A
S
O
N
D
0
1998
1999
2000
2001
2002
MONTH
Figure 4.20 Summary of five years data’s Harkin’s WQI Vs. Month for Skudai.
46
4.2.2 Correlation data between DOE and Harkin’s WQI
Refer to Figures 4.21 to 4.25 where the graph plotted for DOE WQI versus
Harkin’s WQI for year 1998 to 2002. All graph showing increasing trend where higher
WQI on DOE also give higher WQI on Harkin’s except year 2001. This means that
there is positive correlation between DOE and Harkin’s WQI data for the four years
except year 2001.
DOE WQI Vs. Harkins WQI (Skudai) 1998
DOE WQI
Linear (DOE WQI)
100
90
80
DOE WQI
70
60
y = 0.9701x + 55.717
50
2
R = 0.2958
40
30
20
10
35.00
30.00
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.21 The relationship of DOE WQI to Harkins WQI for Skudai Year 1998.
47
DOE WQI Vs. Harkins WQI (Skudai) 1999
DOE WQI
Linear (DOE WQI)
100
90
80
DOE WQI
70
60
y = 1.2119x + 51.727
50
2
R = 0.6172
40
30
20
10
35.00
30.00
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.22 The relationship of DOE WQI to Harkins WQI for Skudai Year 1999.
DOE WQI Vs. Harkins WQI (Skudai) 2000
DOE WQI
Linear (DOE WQI)
100
90
80
DOE WQI
70
60
50
40
y = 0.5484x + 60.37
30
R = 0.1509
2
20
10
35.00
30.00
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.23 The relationship of DOE WQI to Harkins WQI for Skudai Year 2000.
48
DOE WQI Vs. Harkins WQI (Skudai) 2001
DOE WQI
Linear (DOE WQI)
100
90
80
y = -1.9761x + 78.632
DOE WQI
70
2
R = 0.4986
60
50
40
30
20
10
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.24 The relationship of DOE WQI to Harkins WQI for Skudai Year 2001.
DOE WQI Vs. Harkins WQI (Skudai) 2002
DOE WQI
Linear (DOE WQI)
100
90
80
DOE WQI
70
y = 1.4295x + 53.524
60
2
R = 0.2656
50
40
30
20
10
30.00
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.25 The relationship of DOE WQI to Harkins WQI for Skudai Year 2002.
49
Due to earlier findings that all the relationship for Sungai Skudai from year 1998
to 2002 showing increasing trend where higher WQI on DOE also give higher WQI on
Harkin’s except year 2001, a trial has been conducted on year 2001’s data by changing
the control vector for Harkin’s WQI calculation. The new control vector chose is data
for 3rd September 2001 station number 3SI14 because the 1st time calculation shows that
it has the highest Sn value at 22.79.
Refer to Figure 4.26, the correlation trend for year 2001 Sungai Skudai showing
increasing trend after change control vector. This observation show that Harkin’s WQI
calculation have a major hindrance which it required total recomputation of Sn rankings
for all the past data whenever there is new data received and thus, at one time, a fixed set
of water quality observations may have multiple quality ratings (Landwehr, J.M. and
Deininger, R.A.,1974).
DOE WQI Vs. Harkins WQI (Skudai) 2001
DOE WQI
Linear (DOE WQI)
100
90
80
DOE WQI
70
60
y = 1.4975x + 51.832
2
R = 0.2179
50
40
30
20
10
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.26 The relationship of DOE WQI to Harkins WQI for Skudai Year 2001
after change control vector using maximum Sn from the 1st calculation of 22.79.
50
4.2.3 Overall Correlation data between DOE and Harkin’s WQI from Year 1998 to
2002
Refer to Figure 4.27 where the data is plotted in one graph for DOE WQI versus
Harkin’s WQI from year 1998 to 2002. The trend line show increasing trend where
higher WQI on DOE give higher WQI on Harkin’s.
Table 4.2 showing that based on the correlation calculation available from
Microsoft Excel, the individual yearly correlation and overall five years correlation is
showing positive correlation where the overall correlation is at 0.59.
This overall
correlation is not affected by the recalculation of Harkin’s WQI due to change of control
vector.
The correlation data also showing that the control vector is a major hindrance for
Harkin’s WQI calculation because it will affect the observation on the water quality
monitoring where year 2001 data is of negative correlation at -0.71 before the change of
control vector but will become positive correlation at 0.46 after change of control vector.
Control vector is the value used as the control observation from which standardized
distances will be computed. So, it is very important that we choose the correct control
vector for Harkin’s WQI.
51
DOE WQI
DOE WQI Vs. Harkins WQI (Skudai) 1998-2002
Linear (DOE WQI)
100
90
80
DOE WQI
70
60
50
y = 1.007x + 54.213
40
2
R = 0.353
30
20
10
35.00
30.00
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.27 The relationship of DOE WQI to Harkins WQI for Skudai Year 19982002.
Table 4.2 The relationship of DOE WQI to Harkins WQI for Skudai Year 19982002 using correlation calculation.
Year
Correlation, r2
1998
0.54
1999
0.79
2000
0.39
2001 (before change control vector)
-0.71
2001 (after change control vector)
0.46
2002
0.52
1998-2002
0.59
52
4.3
Sungai Klang
4.3.1 Discussion of Data from Sungai Klang Basin, Selangor/Wilayah Persekutuan
Refer to Figures 4.28 to 4.32, DOE WQI decreased with duration for year 1999
and 2001 whereas increased with duration for year 1998, 2000 and 2002. Harkin’s WQI
decreased with duration for year 1998 to 2000 and increased with duration for year 2001
and 2002.
More data on Sungai Klang compared to Sungai Rompin and Sungai Skudai
because there is 24 to 26 monitoring stations for Sungai Klang whereas only eight to 18
stations for Sungai Rompin and nine to 11 stations for Sungai Skudai.
WQI Vs. Date/Tim e (Klang) 1998
Harkins WQI
Linear (DOE WQI)
100
Linear (Harkins WQI)
90
80
70
60
50
40
30
20
10
0
JAN
WQI
DOE WQI
Month
Figure 4.28 WQI Vs. Month for Klang Year 1998.
53
DOE WQI
WQI Vs. Date/Tim e (Klang) 1999
Harkins WQI
Linear (DOE WQI)
100
Linear (Harkins WQI)
90
80
70
WQI
60
50
40
30
20
10
JAN
0
Month
Figure 4.29 WQI Vs. Month for Klang Year 1999.
DOE WQI
WQI Vs. Date/Tim e (Klang) 2000
Harkins WQI
Linear (DOE WQI)
100
Linear (Harkins WQI)
90
80
70
50
40
30
20
Month
Figure 4.30 WQI Vs. Month for Klang Year 2000.
DEC
NOV
OCT
SEP
AUG
JUL
JUN
MA
APR
MAR
0
FEB
10
JAN
WQI
60
54
DOE WQI
WQI Vs. Date/Tim e (Klang) 2001
Harkins WQI
Linear (DOE WQI)
100
Linear (Harkins WQI)
90
80
70
WQI
60
50
40
30
20
DEC
NOV
OCT
SEP
AUG
JUL
JUN
MA
APR
MAR
JAN
0
FEB
10
Month
Figure 4.31 WQI Vs. Month for Klang Year 2001.
WQI Vs. Date/Tim e (Klang) 2002
Harkins WQI
Linear (DOE WQI)
100
Linear (Harkins WQI)
90
80
70
60
50
40
30
20
10
0
JAN
WQI
DOE WQI
Month
Figure 4.32 WQI Vs. Month for Klang Year 2002.
55
Out of the total 1527 data from the five years monitoring, only 71 data points is in
clean status (WQI more than 80). Most of the monitoring station is in polluted area
which makes Sungai Klang overall WQI in the polluted status.
Figures 4.33 and 4.34 are the summary of five years data in maximum, minimum,
average and standard deviation calculated based on available monthly data. DOE WQI
data show higher and bigger variation of standard deviation compared to Harkin’s WQI.
Data range also showing bigger variation on DOE WQI compared to Harkin’s WQI
which is the same observation as Sungai Rompin and Sungai Skudai earlier.
M IN
DOE WQI
M AX
AVERAGE
STANDARD DEVIATION
100
30
90
70
20
WQI
60
15
50
40
10
30
20
5
10
0
J
F
M
A
M
J
J
A
S
O
N
D
J
F
M
A
M
J
J
A
S
O
N
D
J
F
M
A
M
J
J
A
S
O
N
D
J
F
M
A
M
J
J
A
S
O
N
D
J
F
M
A
M
J
J
A
S
O
N
D
0
1998
1999
2000
2001
2002
MONTH
Figure 4.33 Summary of five years data’s DOE WQI Vs. Month for Klang.
Standard Deviation
25
80
56
M IN
Harkins WQI
M AX
AVERAGE
STANDARD DEVIATION
100
30
90
70
20
WQI
60
50
15
40
10
30
20
Standard Deviation
25
80
5
10
0
J
F
M
A
M
J
J
A
S
O
N
D
J
F
M
A
M
J
J
A
S
O
N
D
J
F
M
A
M
J
J
A
S
O
N
D
J
F
M
A
M
J
J
A
S
O
N
D
J
F
M
A
M
J
J
A
S
O
N
D
0
1998
1999
2000
2001
2002
MONTH
Figure 4.34 Summary of five years data’s Harkin’s WQI Vs. Month for Klang.
4.3.2 Correlation data between DOE and Harkin’s WQI
Refer to Figures 4.35 to 4.39 where the graph plotted for DOE WQI versus
Harkin’s WQI for year 1998 to 2002, all graph showing increasing trend where higher
WQI on DOE give higher WQI on Harkin’s except year 2000. This means that there is
positive correlation between DOE and Harkin’s WQI data for the four years Klang data
except year 2000.
57
DOE WQI Vs. Harkins WQI (Klang) 1998
DOE WQI
Linear (DOE WQI)
100
90
80
DOE WQI
70
60
50
40
y = 0.5338x + 43.635
30
2
R = 0.0896
20
10
30.00
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.35 The relationship of DOE WQI to Harkins WQI for Klang Year 1998.
DOE WQI Vs. Harkins WQI (Klang) 1999
DOE WQI
Linear (DOE WQI)
100
90
80
DOE WQI
70
y = 2.616x + 30.635
60
2
R = 0.6491
50
40
30
20
10
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.36 The relationship of DOE WQI to Harkins WQI for Klang Year 1999.
58
DOE WQI Vs. Harkins WQI (Klang) 2000
DOE WQI
Linear (DOE WQI)
100
90
80
DOE WQI
70
60
50
40
30
y = -0.096x + 54.252
20
2
R = 0.0011
10
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.37 The relationship of DOE WQI to Harkins WQI for Klang Year 2000.
DOE WQI Vs. Harkins WQI (Klang) 2001
DOE WQI
Linear (DOE WQI)
100
90
y = 0.1619x + 49.645
80
2
R = 0.0025
DOE WQI
70
60
50
40
30
20
10
30.00
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.38 The relationship of DOE WQI to Harkins WQI for Klang Year 2001.
59
DOE WQI Vs. Harkins WQI (Klang) 2002
DOE WQI
Linear (DOE WQI)
100
90
80
DOE WQI
70
60
y = 1.8851x + 34.925
50
2
R = 0.328
40
30
20
10
30.00
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.39 The relationship of DOE WQI to Harkins WQI for Klang Year 2002.
The same situation for Sungai Klang year 2000 observed as Sungai Skudai for
year 2001. A new control vector is chosen for recalculate. The chosen data is 26th July
2000 for station number 1K15 because the 1st time calculation shows that it is the highest
Sn value at 22.87. Refer to Figure 4.40, the correlation trend for year 2000 for Sungai
Klang changed to increasing trend.
As a confirmation, another median Sn data is chosen from the 1st calculation of
12.05 from 17th August 2000 from station number 1K05. Refer to Figure 4.41, the
correlation trend is still showing positive with more than double of the R2 data.
60
DOE WQI Vs. Harkins WQI (Klang) 2000
DOE WQI
Linear (DOE WQI)
100
90
80
DOE WQI
70
y = 1.2111x + 42.39
60
2
R = 0.1702
50
40
30
20
10
30.00
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.40 The relationship of DOE WQI to Harkins WQI for Klang Year 2000
after change control vector using maximum Sn from the 1st calculation of 22.87.
DOE WQI Vs. Harkins WQI (Klang) 2000
DOE WQI
Linear (DOE WQI)
100
90
80
DOE WQI
70
60
y = 1.5556x + 38.555
50
2
R = 0.3665
40
30
20
10
30.00
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.41 The relationship of DOE WQI to Harkins WQI for Klang Year 2000
after change control vector using median Sn from the 1st calculation of 12.05.
61
4.3.3 Overall Correlation data between DOE and Harkin’s WQI from Year 1998 to
2002
Refer to Figure 4.42 where the data is plotted in one graph for DOE WQI versus
Harkin’s WQI from year 1998 to 2002. The trend line show increasing trend where
higher WQI on DOE give higher WQI on Harkin’s.
Table 4.3 show that based on the correlation calculation available from Microsoft
Excel, the individual yearly correlation and overall five years correlation is showing
positive correlation where the overall correlation is at 0.43. This overall correlation is
not affected by the recalculation of Harkin’s WQI due to change of control vector.
The correlation data confirmed that the control vector is a major hindrance for
Harkin’s WQI calculation because it will affect our observation on the water quality
monitoring where year 2000 data is of negative correlation at -0.03 before the change of
control vector but will become positive correlation at 0.41 after change of control vector
using maximum Sn from the 1st calculation of 22.87. By using another Sn value from the
1st calculation of 12.05, the correlation become 0.61 which showing higher positive
correlation between DOE WQI data and Harkin’s WQI data.
62
DOE WQI
DOE WQI Vs. Harkins WQI (Klang) 1998-2002
Linear (DOE WQI)
100
90
80
DOE WQI
70
60
50
40
y = 0.8777x + 41.636
30
2
R = 0.1849
20
10
35.00
30.00
25.00
20.00
15.00
10.00
5.00
0.00
0
Harkins WQI
Figure 4.42 The relationship of DOE WQI to Harkins WQI for Klang Year 19982002.
Table 4.3 The relationship of DOE WQI to Harkins WQI for Klang Year 19982002 using correlation calculation.
Year
Correlation, r2
1998
0.30
1999
0.81
2000 ((before change control vector)
-0.03
2000 (after change control vector using 1st
0.41
calculation Sn at 22.87)
2000 (after change control vector using 1st
0.61
calculation Sn at 12.05)
2001
0.05
2002
0.57
1998-2002
0.43
CHAPTER 5
CONCLUSIONS AND RECOMMENDATIONS
Indexing system gives great advantages because it is able to detect improvement
or deteriotion of water quality for large quantity of data especially currently there is
increasing automatic continuous water quality monitoring of DOE/ASMA. This will
also gives the authorities to have the plan for water management whether to built water
treatment system or to allocate potential potable water supplies.
Although indexing system had several advantages, the use of averaging large
number of data indicated that only one set of data could be provided for each sample
point and this will limit the amount of information that could be provided by WQI as an
operational management tools (House, 1989).
It is a known fact that monitoring stations located upstream were generally clean,
while those downstream were slightly polluted or polluted (Department of Environment,
2003). However, by averaging all the upstream and downstream of one river station to
one indexing data, the index data will give misleading information and will affect the
water quality management decision on next step of actions. For example, refer to Table
5.1, two out of three stations for Binkongan is in clean status, but because one of the
station is polluted, the overall WQI for the river basin becomes slightly polluted (SP).
64
Table 5.1 Water Quality Status for Sungai Bingkongan, Sabah (Year 2002)
STATE
RIVER
BASIN
NAME
TYPE
OF
RIVER
RIVER
BASIN
OVERA
LL WQI
TOTAL
NO. OF
STATION
S
BING
KONG
AN
SP
76
3
CODE
SABAH
79
RIVER
RIVER
OVERALL
WQI
RIVER
WATER
QUALITY
STATUS
RIVE
R
CLAS
S
MENGGARIS
52
P
III
TANDEK
83
C
II
BANDAU
93
C
I
The classification of the river basin also depends in the eye of the beholder
because the current DOE WQI does not take into consideration of other physical factors
such as flow consideration, loading aspect and etc. (Zaki, 2005).
The comparison on Sungai Rompin, Sungai Skudai and Sungai Klang basin was
successfully conducted. Several issues can be concluded:
a)
DOE WQI more dependant on DO because DO has been given the highest
weighing compared to other parameter in the final formulation. Whereas Harkin’s
WQI depend on the control vector chosen for the Sn calculation. There is no
direct relationship on the Sn data to any of the parameter used for calculation;
b)
Weak or marginally significant correlations among indices do not necessarily
indicate lack of agreement as to what constitutes good or poor water quality
because of Harkin’s WQI calculation;
c)
Harkin’s WQI have a few hindrance which can be major if not being careful
during the application:
i)
Sn data need to be re-computed whenever there is new data or required to
compare more data points. This will lead to more effort in computational
effort to avoid incorrect comparison being made;
ii)
d)
Control vector chosen will affect the end results for the data observation.
The river basin’s colour which has been started as the visual monitoring from year
2001 onwards can be used as a rough indication to determine the condition of the
river basin. Based on the preliminary data, it can conclude that the darker the
colour of the river, the river is more polluted. However, visual inspection is
normally inaccurate because highly dependant on the observation from the data
collector;
65
e)
Current DOE WQI is preferred because it act as a simplify method to share with
public, however, DOE may need to considered some of the suggestion below
mentioned to further improved on the water quality information to the authority or
public for management.
5.1 Monitoring improvement suggestions
There are a few suggestions below which can be considered to further improve on
the current DOE WQI:
a)
DOE may look into developing a few more indices method to be used
independently or in combination of the current WQI method if more detailed
picture of the water quality is required.
For example, House (1989) have
developed four separate indices of water quality:
i)
General water quality index (WQI) which is based on routinely monitoring
determinands and relates water quality to a range of potential water uses;
ii)
Potable water supply index (PWSI) which reflects water quality in terms
of its suitability for use in potable water supply;
iii)
Aquatic toxicity index (ATI) which are indices for toxicity based on less
frequent monitored parameter and to indicate ability of a river to support
healthy fish and wildlife populations;
iv)
Potable sapidity index (PSI) which are indices for toxicity to gauge the
suitability of water for use in potable water supply.
The determinands for the above mentioned four indices are as follow (Table 5.2).
66
Table 5.2 The determinands included within the four independent indices
WQI
PWSI
ATI
PSI
Dissolved oxygen
WQI plus :
Dissolved Copper
Total Copper
Ammoniacal
Sulphates
Total Zinc
Total Zinc
Fluorides
Dissolved
Total Cadmium
nitrogen
Biochemical
oxygen demand
Cadmium
Suspended solids
Colour
Dissolved Lead
Total Lead
Nitrates
Dissolved Iron
Dissolved
Total Chromium
Chromium
pH
Total Arsenic
Total Arsenic
Temperature
Total Mercury
Total Mercury
Chlorides
Total Cyanide
Total Cyanide
Total coliforms
Phenols
Phenols
Total
Hydrocarbons
PAHs
Total Pesticides
b)
To use fish as indicators of water quality. Generally chemical monitoring is
unquestionably the most valuable means of judging the acceptability of the
situation, but it also have some limitation for certain purposes (Price and Biol,
1978):
i) It is not practicable to monitor all determinands which may be relevant to the
protection of fisheries and other sectors of the fauna or to the various other
uses which river may serve;
ii) Routine analytical methods may not be sufficiently sensitive to measure
reliably very low concentrations of pollutants which may be significant, for
example substances which are persistent and tend to accumulate in the
environment;
67
iii) The significance of the concentrations of many substances may not be
adequently known. Judgements based upon acute toxicity data obtained in the
laboratory can be misleading where the toxicity of a substance is substantially
modified by other water quality characteristics e.g. hardness, pH, and
temperature. The sensitivity of the fish species used in laboratory tests may be
significantly different from the sensitivity of the species in the watercourse in
question. Longer term effects may be different from those observable in the
short term, and the egg and fry stages of a fish may be more sensitive to a
pollutant than the adult;
iv) The combinations of pollutants which are normally encountered in the field
may produce effects different from the observed for individual constituents in
the laboratory.
Combinations of pollutants may exert a toxic of each
substance present or less than that expected;
v) A chemical monitoring programmes based upon regular snap sampling may
fail to show occasional, but significant, deteriorations in water quality.
c)
To consider other parameter during sampling such as assimilative capacity of the
receiving waters, total maximum daily load, river flow rate and etc. to gives a
more accurate water quality monitoring.
REFERENCES
Bolton, P.W., Currie, J.C. and Tervet, D.J. (1978). An Index to Improve Water Quality
Classification. Journal Water Pollution Control Federation. 77(2): 271-284.
Chan, N.W. ed. (2002). Rivers Towards Sustainable Development. Pulau Pinang:
Universiti Sains Malaysia.
Chapman, D. ed. (1996). Water Quality Assessment. London: E & FN Spon.
Department of Environment, Malaysia (2001). Malaysia Environmental Quality Report.
Department of Environment, Malaysia (2003). Malaysia Environmental Quality Report.
Dunnette, D.A. (1979). A Geographically Variable Water Quality Index Used in Oregon.
Journal Water Pollution Control Federation. 51(1): 53-61.
Fresenius, W. and Schneider, W. ed. (1988). Water Analysis – A Practical Guide to
Physico-Chemical, Chemical and Microbiological Water Examination and
Quality Assurance. Germany: Springer-Verlag.
Harkins, R.D. (1974). An Objective Water Quality Index. Journal Water Pollution
Control Federation. 46(1): 588-591.
Horton, R.K. (1965). An Index-number System for Rating Water Quality. Journal Water
Pollution Control Federation. 37(3): 300-306.
69
House, M.A. and Ellis, J.B.(1987). The Development of Water Quality Indices for
Operational Management. Water Science and Technology. 19(9): 145-154.
House, M.A. (1989). A Water Quality Index for River Management. Water and
Environmental Management. 3(4): 336-344.
House, M.A. and Newsome, D.H. (1989). Water Quality Indices for the Management of
Surface Water Quality. Water Pollution Research and Control. 21(10): 1137-1148.
Laenen, A and Dunnette D.A. ed. (1997). River Quality Dynamics and Restoration. New
York: Lewis Publishers.
Landwehr, J.M. and Deininger, R.A. (1974). Discussion : An objective water quality
index. Journal Water Pollution Control Federation. 46(7): 1804-1807.
Landwehr, J.M. and Deininger, R.A. (1976). A Comparison of Several Quality Indexes.
Journal Water Pollution Control Federation. 48(5): 954-958.
Loyn, W.A. and Hunter, J.S. (1980). Water Quality Data for Water Quality Decisions.
Water Science and Technology. 13(3): 237-243.
Pesce, S.F. and Wunderlin, D.A. (2000). Use of Water Quality Indices to Verify the
Impact of Cordoba City (Argentina) on Suquia River. Water Research. 34(11):
2915-2926.
Price, R.H. and Biol, M.I. (1978). Fish as Indicators of Water Quality. Water Pollution
Control. 77(2): 285-293.
Ross, S.L. (1977). An Index System for Classifying River Water Quality. Journal Water
Pollution Control Federation. 76(1): 113-122.
70
Stambuk-Giljanovic, N. (1999). Water Quality Evaluation by Index in Dalmatia. Water
Research. 33(16): 3423-3440.
Tyson, J.M. and House, M.A. (1989). The Application of a Water Quality Index to River
Management. Water Pollution Research and Control. 21(10-11): 1149-1159.
Yusoff, M.K., Sulaiman, W.N.A., Ali Bema, D.N and Haron, A.R. (1999). River Water
Quality Classification in Taman Mayang Based on Harkin’s Index. Proceedings of
the National Conference on Rivers ’99. October 14-17. Penang, Malaysia: USM,
186-191.
Zainudin, Z. (2005). Industrial Effluent Load Characteristic of Sungai Perembi
Watershed. Malaysia : UTM.
APPENDIX A
Table A1 : Interim National Water Quality Standards For Malaysia
Source : Department of Environment (Malaysia), 2003
Al
mg/l
As
mg/l
Ba
mg/l
Cd
mg/l
Cr (IV)
mg/l
Cr (III)
mg/l
Cu
mg/l
Hardness
mg/l
Ca
CLASS
I
IIA/IIB
III#
IV
V
-
- (0.06)
0.5
0.05
0.4 (0.05)
0.1
1
-
-
0.01
0.01*
0.01
LEVELS ABOVE IV
UNIT
NATURAL LEVELS OR ABSENT
PARAMETERS
(0.001)
0.05
1.4 (0.05)
0.1
-
2.5
-
0.02
-
0.2
250
-
-
mg/l
-
-
-
Mg
mg/l
-
-
-
Na
mg/l
-
-
3 SAR
K
mg/l
-
-
-
Fe
mg/l
1
1
1 (Leaf)
5 (Others)
Pb
mg/l
0.05
0.02*
5
(0.01)
Mn
mg/l
0.1
0.1
0.2
Hg
mg/l
0.001
0.004
0.002
(0.0001)
72
Ni
mg/l
0.05
0.9*
0.2
Se
mg/l
0.01
0.25
0.02
(0.04)
Ag
mg/l
0.05
0.0002
-
Sn
mg/l
-
0.004
-
U
mg/l
-
-
-
Zn
mg/l
5
0.4*
2
B
mg/l
1
- (3.4)
0.8
Cl
mg/l
200
-
80
Cl2
mg/l
- (0.02)
-
CN
mg/l
0.06
-
0.02
(0.02)
F
mg/l
1.5
10
1
NO2
mg/l
0.4
0.4 (0.03)
-
NO3
mg/l
7
-
5
P
mg/l
0.2
0.1
-
Silica
mg/l
50
-
-
SO4
mg/l
250
-
-
S
mg/l
0.05
- (0.001)
-
CO2
mg/l
-
-
Gross – alfa
Bq/L
0.1
-
-
Gross – beta
Bq/L
1
-
-
Ra – 226
Bq/L
<0.1
-
-
Sr – 90
Bq/L
<1
-
-
CCE
ug/l
500
-
-
-
MBAS/BAS
ug/l
500
5000
-
-
(200)
O&G (Mineral)
ug/l
40 ; N
N
-
-
O&G (Emulsified
ug/l
7000 ; N
N
-
-
edible)
73
PCB
ug/l
0.1
6 (0.05)
-
-
Phenol
ug/l
10
-
-
-
Aldrin/Dieldrin
ug/l
0.02
0.2 (0.01)
-
-
BHC
ug/l
2
9 (0.1)
-
-
Chlordane
ug/l
0.08
2 (0.02)
-
-
t-DDT
ug/l
0.1
(1)
-
-
Endosulfan
ug/l
10
-
-
-
Heptachlor/Epoxide
ug/l
0.05
0.9 (0.06)
-
-
Lindane
ug/l
2
3 (0.4)
-
-
2,4-D
ug/l
70
450
-
-
2,4,5-T
ug/l
10
160
-
-
2,4,5-TP
ug/l
4
850
-
-
Paraquat
ug/l
10
1800
-
-
* = At hardness 50 mg/l CaCO3
# = Maximum (unbracketed) and 24 – hour average (bracketed) concentrations
N = Free from visible film sheen, discoloration and deposits
Table A2 : DOE Water Quality Index Classification
Source : Department of Environment (Malaysia), 2003
PARAMETERS
Ammoniacal
Nitrogen
Biochemical
Oxygen Demand
Chemical Oxygen
Demand
Dissolved Oxygen
pH
Total Suspended
Solids
Water Quality
Index
UNIT
mg/l
I
<0.1
II
0.1 – 0.3
CLASS
III
0.3 – 0.9
IV
0.9 – 2.7
V
>2.7
mg/l
<1
1-3
3-6
6 - 12
>12
mg/l
<10
10 -25
25 - 50
50 -100
>100
mg/l
mg/l
>7
>7.0
<25
5-7
6.0 – 7.0
25 - 50
3-5
5.0 – 6.0
50 -150
<1
>5.0
>300
mg/l
>92.7
76.5 –
92.7
51.9 –
76.5
1-3
<5.0
150 –
300
21.0 –
51.9
<31.0
74
Table A3 : DOE Water Quality Classification Based on Water Quality Index
Source : Department of Environment (Malaysia), 2003
PARAMETER
Water Quality Index
(WQI)
Biochemical
Oxygen Demend
(BOD)
Ammoniacal
Nitrogen (NH3-N)
Suspended Solids
(SS)
Clean
81-100
INDEX RANGE
Slightly polluted
60-80
Polluted
0-59
91-100
80-90
1-79
92-100
71-91
0-70
76-100
70-75
0-69
75
APPENDIX B
TABLE B1 : ROMPIN 1998
STATE
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
BASIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
WKA
No.
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
STA No.
4RP01
4RP05
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP06
4RP07
4RP08
4RP19
4RP20
4RP21
4RP09
4RP10
4RP11
4RP05
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP01
4RP06
4RP07
4RP08
4RP09
4RP10
4RP11
4RP16
4RP19
4RP20
4RP21
4RP02
4RP03
SNO
2834602
2832604
2829615
2730614
2730620
2929616
2729617
2630625
2729618
3130606
3129624
3030623
2928611
2828613
2828604
3029682
2929609
2928605
2832604
2829615
2730614
2730620
2929616
2729617
2630625
2729618
2834602
3130606
3129624
3030623
3029682
2929609
2928605
2729617
2928611
2828613
2828604
2633607
2734605
SUNGAI
ROMPIN
ROMPIN
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
PUKIN
AUR
JERAM
ROMPIN
KERATONG
REKOH
KERATONG
ROMPIN
KERATONG
KEPASING
ROMPIN
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
PUKIN
ROMPIN
AUR
JERAM
ROMPIN
ROMPIN
KERATONG
KEPASING
PUKIN
KERATONG
REKOH
KERATONG
SEPAYANG
PONTIAN
SMP-DAT
18-Jan-98
18-Jan-98
20-Jan-98
20-Jan-98
20-Jan-98
20-Jan-98
20-Jan-98
20-Jan-98
20-Jan-98
21-Jan-98
21-Jan-98
21-Jan-98
22-Jan-98
22-Jan-98
22-Jan-98
6-Feb-98
6-Feb-98
6-Feb-98
15-Mar-98
22-Mar-98
22-Mar-98
22-Mar-98
22-Mar-98
22-Mar-98
22-Mar-98
22-Mar-98
29-Mar-98
30-Mar-98
30-Mar-98
30-Mar-98
22-Apr-98
22-Apr-98
22-Apr-98
22-Apr-98
22-Apr-98
22-Apr-98
22-Apr-98
21-May-98
21-May-98
TIME
1125
1215
1110
1140
1120
1030
1000
0930
0855
1245
1335
1430
1350
1510
1540
1225
1300
1330
1355
1225
1350
1310
1135
1100
1035
1000
1450
0845
0940
1020
1240
1200
1140
1415
1045
0945
0930
1230
1250
76
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
4RP04
4RP01
4RP05
4RP06
4RP07
4RP08
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP09
4RP10
4RP11
4RP19
4RP20
4RP21
4RP06
4RP07
4RP08
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP01
4RP05
4RP19
4RP20
4RP21
4RP09
4RP10
4RP11
4RP01
4RP06
4RP07
4RP08
4RP12
4RP13
4RP14
4RP15
2633606
2834602
2832604
3130606
3129624
3030623
2829615
2730614
2730620
2929616
2729617
2630625
2729618
3029682
2929609
2928605
2928611
2828613
2828604
3130606
3129624
3030623
2829615
2730614
2730620
2929616
2729617
2630625
2729618
2834602
2832604
2928611
2828613
2828604
3029682
2929609
2928605
2834602
3130606
3129624
3030623
2829615
2730614
2730620
2929616
PONTIAN
ROMPIN
ROMPIN
AUR
JERAM
ROMPIN
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
PUKIN
ROMPIN
KERATONG
KEPASING
KERATONG
REKOH
KERATONG
AUR
JERAM
ROMPIN
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
PUKIN
ROMPIN
ROMPIN
KERATONG
REKOH
KERATONG
ROMPIN
KERATONG
KEPASING
ROMPIN
AUR
JERAM
ROMPIN
KERATONG
JEKATIH
JEKATIH
PUKIN
21-May-98
28-May-98
28-May-98
28-May-98
28-May-98
28-May-98
31-May-98
31-May-98
31-May-98
31-May-98
31-May-98
31-May-98
31-May-98
3-Jun-98
3-Jun-98
3-Jun-98
3-Jun-98
3-Jun-98
3-Jun-98
23-Jul-98
23-Jul-98
23-Jul-98
30-Jul-98
30-Jul-98
30-Jul-98
30-Jul-98
30-Jul-98
30-Jul-98
30-Jul-98
5-Aug-98
5-Aug-98
5-Aug-98
5-Aug-98
5-Aug-98
6-Aug-98
6-Aug-98
6-Aug-98
6-Oct-98
8-Oct-98
8-Oct-98
8-Oct-98
11-Nov-98
11-Nov-98
11-Nov-98
11-Nov-98
1205
0925
1015
1245
1320
1400
1355
1330
1255
1130
1055
1030
0955
1340
1255
1230
1125
1000
1020
1525
1340
1445
1230
1110
1150
1030
0855
0955
0930
0915
1015
1340
1440
1505
1730
1650
1615
1310
1350
1447
1533
1310
1340
1225
1105
77
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
33
33
33
33
33
33
33
33
33
33
4RP16
4RP17
4RP18
4RP19
4RP20
4RP21
4RP05
4RP09
4RP10
4RP11
2729617
2630625
2729618
2928611
2828613
2828604
2832604
3029682
2929609
2928605
PUKIN
BAKAR
PUKIN
KERATONG
REKOH
KERATONG
ROMPIN
ROMPIN
KERATONG
KEPASING
11-Nov-98
11-Nov-98
11-Nov-98
11-Nov-98
11-Nov-98
11-Nov-98
12-Nov-98
12-Nov-98
12-Nov-98
12-Nov-98
0925
1040
1010
1655
1600
1545
1600
1130
1205
1240
78
Water
High
Normal
Normal
Normal
Normal
Normal
Low
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
High
High
High
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Low
Low
Low
Low
Low
Low
Low
Normal
Normal
Weather
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
DO %
Sat
DO
mg/l
BOD
mg/l
COD
mg/l
SS
mg/l
pH
Unit
29
28
58
62
79
65
69
53
84
58
83
51
63
12
67
50
48
75
60
78
65
90
75
84
55
87
81
51
83
71
64
74
69
55
72
18
53
14
70
2.28
2.27
4.59
4.73
6.33
4.77
5.36
4.08
6.80
4.67
6.41
3.95
5.01
0.95
5.24
4.03
3.72
5.78
4.52
5.98
4.70
6.87
5.70
6.46
3.72
6.71
5.82
4.04
6.42
5.42
4.7
5.5
5.3
4.0
5.2
1.5
3.8
1.1
5.8
2.0
2.6
2.0
2.0
2.0
2.0
2.0
3.8
2.0
2.0
4.2
2.0
2.0
2.0
2.0
3.4
4.2
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.6
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
3.8
2.0
2.0
2.0
9
8
10
8
11
8
8
20
5
10
26
12
51
90
69
33
45
37
1
1
3
2
1
1
20
1
112
18
16
8
1
1
7
3
1
28
2
40
22
19
6
34
41
30
26
18
22
18
22
6
28
48
27
38
16
27
58
16
8
15
14
9
<4
33
27
12
22
16
47
14
<4
33
<4
9
318
10
14
7
5.42
5.53
6.51
6.47
6.17
6.54
6.55
6.87
6.34
6.02
6.26
6.16
6.28
5.86
6.24
5.86
6.28
6.54
6.92
6.57
6.64
6.58
6.56
6.58
7.39
6.48
7.18
6.64
6.82
6.67
5.54
5.57
5.47
5.06
5.69
5.25
6.37
6.79
5.60
NH3NL
mg/l
0.76
0.96
0.32
0.42
0.16
0.37
0.40
0.61
0.12
0.39
0.24
0.43
0.29
0.48
0.26
0.42
0.61
0.30
0.13
0.31
0.64
0.30
0.26
0.21
0.63
0.29
0.90
0.26
0.32
0.24
0.67
0.78
0.40
0.45
0.61
1.80
0.10
1.21
0.78
PO4
mg/l
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
79
Normal
High
High
Low
Low
Low
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Low
High
Normal
High
Normal
High
High
High
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Cloudy
Cloudy
Cloudy
Cloudy
74
78
70
68
91
87
83
70
93
76
90
64
92
81
75
74
85
78
79
58.5
88.6
71.8
67.2
73.5
84.4
68
74.4
46.4
83.4
48.6
56.8
68.7
29.4
63.9
53.4
71
73.5
68
71
86
66.1
64.7
68.5
88.6
72.6
5.6
6.1
5.7
5.6
7.0
7.1
6.4
4.8
7.2
5.7
7.0
4.7
7.1
6.3
6.1
6.1
6.4
6.2
6.2
4.72
6.87
5.63
5.36
5.9
6.66
5.28
6
3.71
6.73
3.81
4.54
5.54
2.38
5.02
4.01
5.54
5.64
4.81
5.69
6.69
4.97
5.11
5.52
7.01
5.78
2.0
1.7
0.2
0.2
1.0
0.1
1.4
1.6
1.0
0.9
0.9
3.6
1.0
1.5
2.0
0.9
1.5
4.2
2.0
1.1
1.5
1.8
1.6
1.9
1.8
2.6
1.9
4.7
1.1
4.3
2.0
2.2
3.1
2.0
2.2
4.1
4.4
1.0
1.0
1.0
1.0
2
1.0
1.0
1.0
9
36
12
14
18
16
1
6
6
7
3
29
2
10
7
11
8
44
7
14
9
14
21
17
16
21
16
33
12
52
20
17
39
13
12
14
12
35
26
28
24
24
16
13
16
10
17
5
4
4
4
7
13
11
7
13
28
7
34
17
46
16
45
12
33
32
191
76
38
20
24
35
34
9
130
160
220
26
128
72
123
64
10
14
4
24
32
20
16
4
5.91
6.93
6.04
2.98
6.73
6.69
6.78
6.65
6.68
6.67
6.43
6.94
6.58
5.67
5.59
5.63
5.77
5.38
6.29
5.87
5.93
5.57
6.7
6.77
6.97
6.95
7.18
7.05
7.04
6.67
5.87
6.36
5.96
6.87
7.47
7.55
7.76
7.14
5.8
6.91
6.99
6.85
6.78
6.81
7.05
0.82
0.49
0.17
0.31
0.54
0.40
0.24
0.40
0.16
0.24
0.17
0.54
0.22
0.33
0.16
0.59
0.26
0.95
0.16
0.35
0.63
0.44
0.25
0.21
0.14
0.19
0.13
0.62
0.15
0.20
0.34
0.49
0.70
0.58
0.47
0.63
0.46
0.01
0.01
0.01
0.05
0.16
0.01
0.01
0.05
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
80
Normal Cloudy
Normal Cloudy
Normal Cloudy
Normal
Clear
Normal
Clear
Normal
Clear
High
Cloudy
High
Clear
High
Clear
High
Clear
AVERAGE
77.4
13.7
85.8
74.1
47.1
71.5
64.3
54.9
62.7
41.3
66.7
6.26
1.09
6.99
5.85
3.78
5.5
5.06
4.49
4.77
3.16
5.18
1.0
5
1
1.0
2
1.0
1.0
1
1
2
25
40
15
24
60
22
18
22
28
18
6
6
2
30
32
30
26
70
96
78
2
19
37
6.99
7.22
6.86
6.78
5.74
6.7
6.05
6.31
6.3
6.09
6.39
0.01
2.00
0.01
0.01
0.28
0.02
0.01
0.01
0.10
0.06
0.38
0.01
0.38
0.01
0.02
0.01
0.02
0.01
0.01
0.01
0.01
0.01
81
DOSI
20
19
62
68
88
71
76
55
93
62
92
51
68
3
75
50
47
84
64
88
71
97
84
93
57
95
90
52
92
79
70
83
77
56
81
9
54
5
78
BOD SI
92
89
92
92
92
92
92
84
92
92
83
92
92
92
92
86
83
92
92
92
92
92
92
92
89
92
92
92
92
92
92
92
92
92
92
84
92
92
92
COD SI
87
88
86
88
84
88
88
73
92
86
67
83
44
21
32
60
49
56
98
98
95
96
98
98
73
98
13
75
78
88
98
98
90
95
98
65
96
53
72
AN
SI
55
49
70
66
84
68
67
59
88
67
75
66
70
64
74
66
59
69
87
70
58
70
74
78
59
70
51
73
70
75
57
54
67
65
59
32
90
43
54
DOE
SS
pH
SI
SI
87
71
94
82
79
97
76
97
81
93
83
97
87
97
85
99
87
95
85
91
94
94
82
93
73
95
83
89
77
94
88
89
83
95
69
97
88
99
93
98
89
98
89
98
92
97
100
98
80
98
83
97
91
99
85
98
88
99
73
98
89
82
100
83
80
73
100
59
92
85
38
65
92
96
89
99
93
84
WQI
67
67
80
80
87
82
84
74
91
80
84
76
73
55
74
72
67
78
86
89
83
91
89
93
74
89
73
77
87
84
81
85
80
78
85
47
84
60
79
CLASS
III
III
II
II
II
II
II
III
II
II
II
II
III
III
III
III
III
II
II
II
II
II
II
I
III
II
III
II
II
II
II
II
II
II
II
IV
II
III
II
WQ STATUS
SP
SP
SP
SP
C
C
C
SP
C
SP
C
SP
SP
P
SP
SP
SP
SP
C
C
C
C
C
C
SP
C
SP
SP
C
C
C
C
SP
SP
C
P
C
P
SP
82
83
87
78
76
97
95
92
78
100
86
97
70
98
90
84
83
93
87
89
62
96
80
74
82
93
75
83
44
92
48
60
76
20
70
55
79
82
75
79
94
73
71
76
96
81
92
93
100
100
96
100
94
94
96
97
97
85
96
94
92
97
94
83
92
96
94
93
94
92
93
89
92
81
96
82
92
91
87
92
91
83
82
96
96
96
96
92
96
96
96
87
57
83
80
75
78
98
91
91
90
95
64
96
86
90
84
88
50
90
80
87
80
73
76
78
73
78
60
83
43
73
76
54
82
83
80
83
58
67
65
70
70
78
82
78
53
64
82
70
62
67
75
67
83
75
82
62
77
69
84
60
73
49
83
69
59
65
75
79
86
81
87
59
85
80
69
64
56
60
64
59
64
99
99
99
95
84
99
99
95
92
88
95
95
95
95
93
90
91
93
90
82
93
79
88
74
88
74
91
80
80
49
62
77
86
84
79
79
92
56
53
47
83
56
64
56
66
92
89
95
84
80
86
88
95
89
99
91
11
99
98
99
98
98
98
96
100
98
85
83
84
87
70
95
89
90
83
98
99
100
100
99
99
99
98
89
96
90
99
97
96
94
99
88
99
100
99
99
99
99
83
82
88
76
88
89
92
86
94
90
93
76
93
85
87
81
88
71
90
78
85
76
79
84
89
83
86
68
91
66
72
75
62
76
74
75
79
86
86
92
85
82
88
93
90
II
II
II
II
II
II
I
II
I
II
I
II
I
II
II
II
II
III
II
II
II
II
II
II
II
II
II
III
II
III
III
III
III
II
III
II
II
II
II
II
II
II
II
I
II
C
C
C
SP
C
C
C
C
C
C
C
SP
C
C
C
SP
C
SP
C
SP
C
SP
SP
C
C
C
C
SP
C
SP
SP
SP
SP
SP
SP
SP
SP
C
C
C
C
C
C
C
C
83
87
5
94
83
45
80
70
57
68
37
74
96
79
96
96
92
96
96
96
96
92
92
69
53
79
70
38
72
75
72
65
75
74
99
30
99
99
71
98
99
99
90
94
67
94
94
96
81
80
81
83
64
56
61
78
100
99
99
99
86
98
92
95
95
92
96
90
56
94
87
67
87
85
79
78
73
80
II
III
I
II
III
II
II
II
II
III
II
C
P
C
C
SP
C
C
SP
SP
SP
SP
84
DO
mg/l
HARKINS
BOD
R1
R2
6
5
24
30
75
31
44
20
85
25
78
15
36
1
40
18
10
61
22
66
28
86
57
80
10
83
63
19
79
46
27
47
43
16
40
4
13
3
60
37
81
37
37
76
37
37
85
37
37
89
37
37
37
37
83
90
37
37
37
37
37
37
37
79
37
37
37
37
37
37
37
37
37
37
86
37
37
37
pH
pHt
(su)
7.9
7.4
2.5
2.7
4.2
2.3
2.3
0.6
3.3
4.9
3.7
4.2
3.6
5.7
3.8
5.7
3.6
2.3
0.4
2.2
1.8
2.1
2.2
2.1
0.4
2.6
0.2
1.8
0.9
1.7
7.3
7.2
7.7
9.7
6.6
8.8
3.2
1.1
7.0
PO4
R3
R4
Sn
90
88
50
52
64
48
47
19
56
69
62
65
60
75
63
75
60
48
15
45
40
42
46
42
14
51
8
40
24
36
87
85
89
93
80
92
54
26
83
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2.64
2.61
2.74
9.45
3.24
4.47
10.24
10.05
1.09
11.78
0.96
2.44
0.34
2.56
3.38
5.06
6.50
7.99
7.64
4.05
11.82
6.16
10.57
10.26
10.12
13.55
3.63
13.15
6.13
0.61
2.32
1.86
0.15
1.71
3.27
1.83
5.58
4.03
85
53
70
58
52
90
92
76
34
94
58
88
25
93
73
69
68
77
71
72
29
86
54
44
65
81
42
67
9
84
13
23
50
7
37
17
50
55
33
56
82
35
39
49
91
61
37
32
2
3
7
1
26
30
7
4
4
84
7
27
37
4
27
88
37
24
27
33
30
35
33
79
35
93
24
91
37
78
82
37
77
87
92
7
7
7
7
37
7
7
7
5.5
0.4
4.8
20.1
1.4
1.6
1.1
1.8
1.6
1.7
2.9
0.3
2.1
6.7
7.1
6.9
6.2
8.1
3.6
5.7
5.4
7.2
1.5
1.2
0.2
0.2
0.2
0.0
0.0
1.7
5.7
3.2
5.2
0.6
0.5
0.6
0.8
0.1
6.0
0.4
0.0
0.8
1.1
1.0
0.0
72
13
68
94
31
34
27
39
35
36
53
12
42
81
84
82
78
91
59
73
71
85
32
30
7
11
8
4
1
36
73
55
70
19
17
18
23
6
77
16
2
22
27
25
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3.44
13.65
5.99
4.47
15.53
16.07
12.21
4.66
15.85
9.11
12.47
11.75
14.63
6.34
5.44
6.79
7.18
9.27
7.22
1.34
9.32
3.19
6.60
9.62
17.02
12.63
14.19
14.32
19.25
7.99
0.79
6.58
3.30
8.15
9.58
13.07
13.47
11.80
4.85
16.51
12.88
7.76
9.12
16.77
15.38
86
73
2
89
64
12
48
38
21
31
8
736.25
7
94
7
7
37
7
7
7
7
37
736.25
0.0
0.2
0.7
1.1
6.3
1.5
4.8
3.5
3.5
4.6
2
10
21
27
79
32
67
57
58
66
736.25
1
94
1
92
1
92
1
1
1
1
736.25
17.84
24.87
17.05
22.43
0.21
19.43
3.33
3.01
3.46
0.79
87
TABLE B2 : ROMPIN 1999
STATE
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
BASIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
WKA
No.
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
STA No.
4RP06
4RP07
4RP08
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP19
4RP20
4RP21
4RP01
4RP05
4RP09
4RP10
4RP11
4RP01
4RP05
4RP09
4RP12
4RP15
4RP16
4RP17
4RP18
4RP10
4RP11
4RP13
4RP14
4RP19
4RP20
4RP21
4RP06
4RP07
4RP08
4RP05
4RP01
4RP06
4RP07
4RP08
4RP09
4RP10
SNO
3130606
3129624
3030623
2829615
2730614
2730620
2929616
2729617
2630625
2729618
2928611
2828613
2828604
2834602
2832604
3029682
2929609
2928605
2834602
2832604
3029682
2829615
2929616
2729617
2630625
2729618
2929609
2928605
2730614
2730620
2928611
2828613
2828604
3130606
3129624
3030623
2832604
2834602
3130606
3129624
3030623
3029682
2929609
SUNGAI
AUR
JERAM
ROMPIN
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
60
KERATONG
REKOH
KERATONG
ROMPIN
ROMPIN
ROMPIN
KERATONG
KEPASING
ROMPIN
ROMPIN
ROMPIN
KERATONG
PUKIN
PUKIN
BAKAR
PUKIN
KERATONG
KEPASING
JEKATIH
JEKATIH
KERATONG
REKOH
KERATONG
AUR
JERAM
ROMPIN
ROMPIN
ROMPIN
AUR
JERAM
ROMPIN
ROMPIN
KERATONG
SMP-DAT
8-Jan-99
8-Jan-99
8-Jan-99
12-Jan-99
12-Jan-99
12-Jan-99
12-Jan-99
12-Jan-99
12-Jan-99
12-Jan-99
12-Jan-99
12-Jan-99
12-Jan-99
13-Jan-99
13-Jan-99
13-Jan-99
13-Jan-99
13-Jan-99
16-Mar-99
17-Mar-99
25-Mar-99
25-Mar-99
25-Mar-99
25-Mar-99
25-Mar-99
25-Mar-99
1-Apr-99
1-Apr-99
1-Apr-99
1-Apr-99
1-Apr-99
1-Apr-99
1-Apr-99
5-Apr-99
5-Apr-99
5-Apr-99
3-May-99
4-May-99
5-May-99
5-May-99
5-May-99
5-May-99
5-May-99
TIME
1055
0900
0945
1330
1305
1230
1200
1010
1125
1105
1620
1430
1510
1325
1220
0905
0825
0800
1400
1820
1420
1340
1315
1255
1230
1150
0940
1010
1300
1330
1215
1110
1125
1110
1230
1315
1620
1455
1255
1105
1205
1640
1405
88
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
4RP11
4RP19
4RP12
4RP13
4RP14
4RP15
4RP16
4RP20
4RP21
4RP17
4RP18
4RP05
4RP06
4RP07
4RP08
4RP09
4RP10
4RP11
4RP19
4RP20
4RP21
4RP01
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP01
4RP10
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP20
4RP21
4RP06
4RP07
4RP08
4RP09
4RP11
4RP19
4RP05
2928605
2928611
2829615
2730614
2730620
2929616
2729617
2828613
2828604
2630625
2729618
2832604
3130606
3129624
3030623
3029682
2929609
2928605
2928611
2828613
2828604
2834602
2829615
2730614
2730620
2929616
2729617
2630625
2729618
2834602
2929609
2829615
2730614
2730620
2929616
2729617
2630625
2729618
2828613
2828604
3130606
3129624
3030623
3029682
2928605
2928611
2832604
KEPASING
KERATONG
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
REKOH
KERATONG
BAKAR
PUKIN
ROMPIN
AUR
JERAM
ROMPIN
ROMPIN
KERATONG
KEPASING
KERATONG
REKOH
KERATONG
ROMPIN
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
PUKIN
ROMPIN
KERATONG
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
PUKIN
REKOH
KERATONG
AUR
JERAM
ROMPIN
ROMPIN
KEPASING
KERATONG
ROMPIN
5-May-99
5-May-99
25-May-99
25-May-99
25-May-99
25-May-99
25-May-99
25-May-99
25-May-99
27-May-99
27-May-99
7-Jul-99
7-Jul-99
7-Jul-99
7-Jul-99
8-Jul-99
8-Jul-99
8-Jul-99
8-Jul-99
8-Jul-99
8-Jul-99
14-Jul-99
14-Jul-99
14-Jul-99
14-Jul-99
14-Jul-99
14-Jul-99
14-Jul-99
14-Jul-99
6-Sep-99
8-Sep-99
8-Sep-99
8-Sep-99
8-Sep-99
8-Sep-99
8-Sep-99
8-Sep-99
8-Sep-99
8-Sep-99
8-Sep-99
9-Sep-99
9-Sep-99
9-Sep-99
9-Sep-99
9-Sep-99
9-Sep-99
15-Sep-99
1435
1530
1225
1300
1320
1440
1505
1107
1130
1610
1540
1705
1505
1340
1420
1540
1510
1435
1145
1250
1310
1510
1240
1105
1140
1210
1340
1435
1410
1550
1650
1140
1200
1225
1255
1445
1425
1400
1535
1555
1720
1540
1620
1355
1305
1220
1540
89
Water
Normal
Normal
Normal
High
High
High
High
High
Normal
Normal
High
High
High
Normal
High
High
High
High
Normal
Normal
Normal
Normal
High
High
High
High
High
High
High
High
High
High
High
Normal
High
High
High
Normal
Normal
Normal
Normal
Normal
Normal
Weather
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
DO %
Sat
DO
mg/l
BOD
mg/l
COD
mg/l
SS
mg/l
pH
Unit
44.4
53.1
39.1
51.2
65.5
82.6
70.5
73.1
30.3
80.3
44.2
29.9
51.2
38
48.4
25
44.5
54.1
46.7
57.5
71.9
72.8
67.1
58.7
55.3
83.8
52.2
52.1
70.6
79.2
60.2
52.7
57.7
66.5
65
67
63.3
48.3
67.2
89.6
74.4
56
76.2
3.59
4.21
3.2
3.78
5.16
6.74
5.73
6.01
2.35
6.54
3.48
2.44
3.97
3.01
4.03
1.89
3.59
4.36
3.55
4.57
5.74
5.76
5.6
4.82
4.49
6.79
4.38
4.1
5.53
6.34
4.71
4.19
4.58
5.26
5.1
5.54
4.67
3.71
5.31
6.9
5.57
4.03
5.73
5
7
5
2
1
1
1
1
10
1
2
2
2
2
3
3
3
4
4
1
4
5
5
5
5
4
3
2
2
2
4
4
3
5
5
5
3
3
1
1
1
1
2
17
17
25
21
35
9
12
11
33
5
21
48
28
24
23
22
22
18
25
24
16
18
24
26
41
15
37
19
17
17
31
27
21
15
8
20
10
32
14
4
2
21
20
2
6
8
14
6
14
8
8
4
4
24
14
8
30
2
4
14
22
32
30
32
28
34
162
216
18
21
126
38
37
92
46
58
26
19
34
30
20
7
6
27
27
28
5.57
6.2
5.91
6.4
6.41
6.41
6.49
6.58
6.85
6.54
6.35
5.86
6.28
5.23
5.57
5.73
6.19
6.44
5.59
5.88
6.25
6.88
6.99
6.62
6.62
6.78
6.23
6.37
6.43
6.43
6.23
5.51
6.3
6.45
6.53
6.58
6.22
6.63
6.35
6.74
6.96
6.5
6.56
NH3NL
mg/l
0.1
0.18
0.23
0.08
0.07
0.03
0.09
0.08
1.31
0.06
0.38
0.14
0.12
0.03
0.04
0.03
0.17
0.02
0.15
0.1
0.02
0.15
0.13
0.27
1.74
0.01
0.1
0.07
0.01
0.01
0.06
0.06
0.04
0.01
0.07
0.12
0.17
0.18
0.1
0.11
0.11
0.07
0.07
PO4
mg/l
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.18
0.01
0.02
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.03
0.01
0.04
0.03
0.02
0.08
0.24
0.02
0.06
0.01
0.05
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
90
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal Cloudy
Normal Cloudy
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
AVERAGE
62.9
81.6
56.8
80.4
86.5
49.5
80.1
45.6
60.9
65.7
89.8
64.5
72.3
83.1
55.4
50.1
69.7
66.2
70.8
58.3
70.2
68.2
24.5
62
98.8
62.2
87.4
29.1
96.3
50.5
64.4
34.7
76.1
81.3
66.8
77.3
19
92.1
54.3
52.6
74.4
83.4
72.4
69.2
50.6
69.6
65.7
62.7
4.7
6.08
4.46
6.28
6.77
3.74
6.22
3.59
4.79
5.14
6.93
5.03
5.96
6.48
4.54
3.85
5.28
5.16
5.54
4.57
5.56
4.99
1.96
4.93
7.93
5
7.01
2.37
7.75
3.96
5
2.76
5.95
6.47
5.27
6.1
1.48
7.1
4.24
4.05
6.03
6.7
5.67
5.33
4.01
5.49
5.06
4.94
1
1
12
7
11
11
10
15
10
9
3
1
2
2
3
5
4
3
5
8
4
2
2
1
1
1
1
4
1
4
2
3
1
3
3
2
6
2
5
2
1
1
1
1
3
2
2
4
15
9
26
14
19
25
29
77
44
53
21
9
15
20
15
28
30
23
20
70
24
14
20
13
12
20
15
37
14
37
5
28
5
17
20
7
61
11
41
12
16
19
20
20
22
21
5
22
21
21
45
28
16
10
11
22
22
33
6
12
59
7
92
70
142
78
25
19
46
5
18
14
8
3
3
17
5
52
29
39
33
12
19
15
27
7
45
47
49
104
106
26
49
50
22
33
6.55
6.75
6.62
6.78
7.12
6.88
7.19
6.12
6.7
7.35
6.65
6.48
6.02
6.88
6.63
6.41
6.54
6.32
6.9
5.98
6.69
6.84
6.47
7.83
6.8
6.76
6.82
6.29
6.64
5.89
6.69
6.65
6.93
7.23
6.93
6.72
7.28
6.62
6.03
6.57
5.91
6.17
6.61
6.68
6.3
6.83
6.46
6.49
0.29
0.05
0.34
0.08
0.12
0.14
0.08
0.18
0.32
4.29
0.11
0.09
0.09
0.08
0.21
0.16
0.25
0.32
0.11
0.14
0.3
0.12
0.22
0.11
0.13
0.22
0.15
1.55
0.15
0.09
0.07
0.48
0.02
0.01
0.08
0.01
5.85
0.01
0.18
0.17
0.11
0.25
0.22
0.19
0.33
0.34
0.11
0.29
0.01
0.01
0.05
0.01
0.01
0.01
0.01
0.01
0.06
0.23
0.01
0.01
0.02
0.01
0.02
0.01
0.02
0.06
0.03
0.02
0.07
0.01
0.08
0.01
0.01
0.02
0.01
0.18
0.01
0.01
0.01
0.04
0.01
0.01
0.01
0.01
0.52
0.01
0.04
0.01
0.01
0.01
0.01
0.01
0.01
0.03
0.01
0.03
91
DOE
DOSI
41
54
34
51
72
92
79
82
22
89
41
21
51
32
47
15
41
56
45
61
80
81
74
63
58
93
53
53
79
88
65
54
61
73
71
74
69
47
74
97
83
59
85
BOD SI
79
73
79
92
96
96
96
96
61
96
92
92
92
92
88
88
88
83
83
96
83
79
79
79
79
83
88
92
92
92
83
83
88
79
79
79
88
88
96
96
96
96
92
COD SI
76
76
69
73
58
87
83
84
60
92
73
47
65
70
71
72
72
75
69
70
78
75
70
67
52
79
56
74
76
76
62
66
73
79
88
73
86
61
80
94
96
73
73
AN
SI
90
82
76
92
93
97
91
92
41
94
68
86
88
97
96
97
83
98
85
90
98
85
87
72
33
99
90
93
99
99
94
94
96
99
93
88
83
82
90
89
89
93
93
SS SI
96
94
93
89
94
89
93
93
95
95
84
89
93
81
96
95
89
85
80
81
80
82
79
52
47
87
86
56
77
78
57
74
69
83
87
79
81
86
93
94
83
83
82
pH SI
83
94
89
96
96
96
97
98
99
97
95
89
95
65
83
86
94
96
83
89
94
99
100
98
98
99
94
96
96
96
94
82
95
96
97
98
94
98
95
99
100
97
97
WQI
75
77
70
80
84
93
89
90
59
94
73
67
79
71
78
72
75
80
72
80
85
83
80
71
60
90
76
75
86
88
75
74
79
84
84
81
82
75
87
95
91
82
87
CLASS
III
II
III
II
II
I
II
II
III
I
III
III
II
III
II
III
III
II
III
II
II
II
II
III
III
II
II
III
II
II
III
III
II
II
II
II
II
III
II
I
II
II
II
WQ
STATUS
SP
SP
SP
SP
C
C
C
C
P
C
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
C
C
SP
SP
SP
C
SP
SP
C
C
SP
SP
SP
C
C
SP
C
SP
C
C
C
C
C
92
69
91
60
90
95
49
89
43
66
72
97
71
81
92
58
50
78
73
79
62
78
76
15
67
100
68
95
20
100
50
71
27
85
90
74
86
9
100
56
54
83
92
81
77
51
77
72
68
96
96
55
73
58
58
61
46
61
65
88
96
92
92
88
79
83
88
79
69
83
92
92
96
96
96
96
83
96
83
92
88
96
88
88
92
77
92
79
92
96
96
96
96
88
92
92
85
79
87
67
80
74
69
64
28
50
43
73
87
79
73
79
65
63
71
73
32
70
80
73
82
83
73
79
56
80
56
92
65
92
76
73
90
37
84
52
83
78
74
73
73
72
73
92
72
70
95
69
92
88
86
92
82
70
0
89
91
91
92
78
84
74
70
89
86
69
88
77
89
87
77
85
36
85
91
93
64
98
99
92
99
0
99
82
83
89
74
77
81
69
69
89
70
86
86
74
82
88
92
91
85
85
80
94
91
68
93
57
64
54
61
84
87
74
95
87
89
93
96
96
88
95
71
82
77
80
91
87
89
83
93
74
73
72
59
58
83
72
72
85
80
97
99
98
99
99
99
99
93
98
98
98
97
91
99
98
96
97
95
99
91
98
99
97
93
99
99
99
95
98
89
98
98
99
99
99
99
98
98
91
98
89
93
98
98
95
99
97
97
82
92
68
85
83
72
82
60
70
60
90
88
83
90
75
71
75
76
83
69
78
87
69
85
93
84
92
60
93
72
87
67
91
90
84
92
48
95
71
78
85
82
80
84
73
80
87
78
II
I
III
II
II
III
II
III
III
III
II
II
II
II
III
III
III
II
II
III
II
II
III
II
I
II
I
III
I
III
II
III
II
II
II
I
IV
I
III
II
II
II
II
II
III
II
II
II
C
C
SP
C
C
SP
C
P
SP
P
C
C
C
C
SP
SP
SP
SP
C
SP
SP
C
SP
C
C
C
C
SP
C
SP
C
SP
C
C
C
C
P
C
SP
SP
C
C
SP
C
SP
SP
C
SP
93
HARKINS
pH
DO mg/l
BOD
PO4
R1
R2
pHt (su)
R3
R4
Sn
12
27
9
17
50
82
65
71
4
80
10
6
20
8
22
2
12
29
11
34
67
68
63
41
32
84
30
25
58
77
39
26
36
52
48
59
37
15
55
85
62
22
65
67
80
67
24
1
1
1
1
84
1
24
24
24
24
43
43
43
57
57
1
57
67
67
67
67
57
43
24
24
24
57
57
43
67
67
67
43
43
1
1
1
1
24
7.2
4.0
5.5
3.0
3.0
3.0
2.6
2.1
0.8
2.3
3.3
5.7
3.6
8.9
7.2
6.4
4.1
2.8
7.1
5.6
3.8
0.6
0.0
1.9
1.9
1.1
3.9
3.2
2.9
2.9
3.9
7.5
3.5
2.8
2.4
2.1
3.9
1.9
3.3
1.3
0.2
2.5
2.2
87
73
80
60
57
57
49
40
14
45
62
84
68
90
87
85
74
54
86
83
69
11
1
35
35
20
70
61
55
55
70
89
65
53
47
40
72
33
62
24
4
48
43
1
1
1
1
1
1
1
1
86
1
63
1
1
1
1
1
1
1
71
1
75
71
63
84
89
63
80
1
78
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0.87
0.09
3.86
9.93
15.05
12.76
14.88
19.12
15.92
9.37
2.81
3.37
2.78
1.00
1.01
1.10
2.19
7.41
7.19
13.22
20.46
20.51
15.46
16.07
20.18
11.01
3.99
16.18
10.52
1.66
0.44
2.42
4.08
4.29
6.55
2.11
5.19
10.12
20.23
20.37
8.86
9.77
94
38
73
31
76
83
16
75
12
40
49
86
46
70
79
33
18
54
50
59
34
61
43
3
42
90
44
87
5
89
19
44
7
69
78
53
74
1
88
28
24
72
81
64
56
21
57
47
674.92
1
1
89
80
87
87
84
90
84
83
43
1
24
24
43
67
57
43
67
82
57
24
24
1
1
1
1
57
1
57
24
43
1
43
43
24
79
24
67
24
1
1
1
1
43
24
24
674.92
2.3
1.3
1.9
1.1
0.1
0.6
0.2
4.4
1.5
0.4
1.8
2.6
4.9
0.6
1.9
3.0
2.3
3.4
0.5
5.1
1.6
0.8
2.7
0.8
1.0
1.2
0.9
3.6
1.8
5.6
1.6
1.8
0.4
0.2
0.4
1.4
0.3
1.9
4.9
2.2
5.5
4.2
2.0
1.6
3.5
0.9
2.7
44
23
35
20
2
11
3
76
26
7
30
50
78
11
33
57
45
64
10
79
27
15
51
16
19
22
18
67
32
82
27
30
8
5
8
25
6
35
77
42
80
75
39
29
65
17
52
674.92
1
1
78
1
1
1
1
1
80
88
1
1
63
1
63
1
63
80
71
63
83
1
84
1
1
63
1
86
1
1
1
75
1
1
1
1
90
1
75
1
1
1
1
1
1
71
1
674.92
10.20
18.04
14.04
12.97
18.77
9.17
16.76
0.96
16.35
23.11
13.78
10.20
13.54
17.95
11.52
1.39
11.07
13.02
19.32
6.84
19.00
11.84
14.99
15.26
22.32
19.93
21.84
11.52
19.72
0.26
9.59
13.82
20.52
17.27
12.59
14.13
21.85
15.30
8.64
5.95
11.86
13.72
13.87
14.31
1.69
20.26
6.37
95
TABLE B3 : ROMPIN 2000
STATE
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
BASIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
COLOUR
BROWN
BROWN
BROWN
BROWN
BROWN
BROWN
BROWN
BROWN
l/BROWN
BROWN
BROWN
BROWN
BROWN
BROWN
BROWN
BROWN
BROWN
BROWN
BROWN
BROWN
BROWN
BROWN
L/BROWN
L/BROWN
L/BLACK
WKA STA No.
No.
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
4RP09
4RP08
4RP07
4RP06
4RP05
4RP01
4RP17
4RP16
4RP18
4RP13
4RP14
4RP21
4RP20
4RP12
4RP19
4RP15
4RP11
4RP10
4RP05
4RP01
4RP17
4RP16
4RP18
4RP13
4RP14
4RP21
4RP20
4RP12
4RP19
4RP15
4RP11
4RP10
4RP09
4RP08
4RP07
4RP06
4RP11
4RP19
4RP10
4RP09
4RP08
4RP07
4RP06
SNO
3029682
3030623
3129624
3130606
2832604
2834602
2630625
2729617
2729618
2730614
2730620
2828604
2828613
2829615
2928611
2929616
2928605
2929609
2832604
2834602
2630625
2729617
2729618
2730614
2730620
2828604
2828613
2829615
2928611
2929616
2928605
2929609
3029682
3030623
3129624
3130606
2928605
2928611
2929609
3029682
3030623
3129624
3130606
SUNGAI
ROMPIN
ROMPIN
JERAM
AUR
ROMPIN
ROMPIN
BAKAR
PUKIN
PUKIN
JEKATIH
JEKATIH
KERATONG
REKOH
KERATONG
KERATONG
PUKIN
KEPASING
KERATONG
ROMPIN
ROMPIN
BAKAR
PUKIN
PUKIN
JEKATIH
JEKATIH
KERATONG
REKOH
KERATONG
KERATONG
PUKIN
KEPASING
KERATONG
ROMPIN
ROMPIN
JERAM
AUR
KEPASING
KERATONG
KERATONG
ROMPIN
ROMPIN
JERAM
AUR
SMP-DAT
24-Jan-00
24-Jan-00
24-Jan-00
24-Jan-00
25-Jan-00
25-Jan-00
26-Jan-00
26-Jan-00
26-Jan-00
26-Jan-00
26-Jan-00
26-Jan-00
26-Jan-00
26-Jan-00
26-Jan-00
26-Jan-00
27-Jan-00
27-Jan-00
4-Apr-00
10-Apr-00
11-Apr-00
11-Apr-00
11-Apr-00
11-Apr-00
11-Apr-00
11-Apr-00
11-Apr-00
11-Apr-00
11-Apr-00
11-Apr-00
17-Apr-00
17-Apr-00
17-Apr-00
17-Apr-00
17-Apr-00
17-Apr-00
29-May-00
29-May-00
29-May-00
29-May-00
29-May-00
29-May-00
29-May-00
96
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
BROWN
BROWN
L/BROWN
L/BROWN
L/BROWN
L/BROWN
L/BROWN
BROWN
BROWN
L/BROWN
L/BROWN
BROWN
BROWN
L/BLACK
L/BLACK
CLEAR
L/BROWN
CLEAR
L/BROWN
L/BROWN
BROWN
BROWN
BROWN
BROWN
BROWN
BROWN
L/BROWN
L/BROWN
CLEAR
L.Brown
L.Black
L.Brown
Brown
Brown
Brown
Brown
Brown
L.Brown
Brown
Brown
Brown
Brown
L.Brown
Green
CLEAR
Brown
Brown
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
4RP05
4RP01
4RP17
4RP16
4RP18
4RP13
4RP14
4RP21
4RP20
4RP12
4RP15
4RP01
4RP05
4RP17
4RP16
4RP18
4RP13
4RP14
4RP21
4RP20
4RP12
4RP19
4RP15
4RP11
4RP10
4RP09
4RP08
4RP07
4RP06
4RP01
4RP05
4RP09
4RP06
4RP07
4RP08
4RP10
4RP11
4RP19
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP20
4RP21
2832604
2834602
2630625
2729617
2729618
2730614
2730620
2828604
2828613
2829615
2929616
2834602
2832604
2630625
2729617
2729618
2730614
2730620
2828604
2828613
2829615
2928611
2929616
2928605
2929609
3029682
3030623
3129624
3130606
2834602
2832604
3029682
3130606
3129624
3030623
2929609
2928605
2928611
2829615
2730614
2730620
2929616
2729617
2630625
2729618
2828613
2828604
ROMPIN
ROMPIN
BAKAR
PUKIN
PUKIN
JEKATIH
JEKATIH
KERATONG
REKOH
KERATONG
PUKIN
ROMPIN
ROMPIN
BAKAR
PUKIN
PUKIN
JEKATIH
JEKATIH
KERATONG
REKOH
KERATONG
KERATONG
PUKIN
KEPASING
KERATONG
ROMPIN
ROMPIN
JERAM
AUR
ROMPIN
ROMPIN
ROMPIN
AUR
JERAM
ROMPIN
KERATONG
KEPASING
KERATONG
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
PUKIN
REKOH
KERATONG
30-May-00
30-May-00
31-May-00
31-May-00
31-May-00
31-May-00
31-May-00
31-May-00
31-May-00
31-May-00
31-May-00
11-Jul-00
12-Jul-00
13-Jul-00
13-Jul-00
13-Jul-00
13-Jul-00
13-Jul-00
13-Jul-00
13-Jul-00
13-Jul-00
13-Jul-00
13-Jul-00
21-Jul-00
21-Jul-00
21-Jul-00
21-Jul-00
21-Jul-00
21-Jul-00
11-Sep-00
12-Sep-00
12-Sep-00
13-Sep-00
13-Sep-00
13-Sep-00
13-Sep-00
13-Sep-00
13-Sep-00
14-Sep-00
14-Sep-00
14-Sep-00
14-Sep-00
14-Sep-00
14-Sep-00
14-Sep-00
14-Sep-00
14-Sep-00
97
TIME
Water
Weather
DO %
Sat
DO
mg/l
BOD
mg/l
COD
mg/l
SS
mg/l
1715
1545
1510
1645
1720
1635
1350
1415
1325
1125
1205
1520
1500
1100
1630
1230
1835
1905
1415
1615
1500
1530
1430
1135
1225
1645
1710
1105
1745
1615
1055
1145
1215
1500
1345
1545
1430
1340
1455
1530
1200
1115
1030
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
High
High
High
High
High
High
Low
High
High
High
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Cloudy
Cloudy
Clear
Clear
Cloudy
Cloudy
Clear
Clear
Clear
Cloudy
Cloudy
Clear
Cloudy
Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
35.3
46.6
84.9
71.5
45.4
48.2
62.3
63
60.1
60.1
75.8
56.5
43.4
60.3
39.6
68.6
60.6
46.3
68.5
48.3
49.6
58.2
96.8
50.1
74.2
78.4
57.1
46.1
76.8
50.6
88.4
74.1
64.2
70.7
83
86.6
55.2
76.1
56.5
67.4
74.8
86.1
64.4
2.94
3.80
6.92
5.89
3.71
3.93
5.04
5.29
4.70
4.86
4.03
4.92
3.69
4.90
3.19
5.68
4.91
3.75
5.41
3.73
4.05
4.72
7.94
3.97
5.54
6.23
4.48
3.63
6.14
4.00
7.01
5.47
4.69
5.42
6.42
6.71
4.07
5.74
4.59
5.03
5.66
6.66
5.05
4.00
4.00
5.00
4.00
6.00
4.00
3.00
2.00
3.00
3.00
3.00
3.00
3.00
4.00
2.00
4.00
3.00
3.00
2.00
9.00
8.00
6.00
7.00
7.00
6.00
7.00
9.00
3.00
8.00
5.00
3.00
4.00
3.00
3.00
3.00
3.00
2.00
2.00
2.00
3.00
2.00
2.00
2.00
24.00
18.00
16.00
18.00
22.00
70.00
63.00
29.00
39.00
47.00
31.00
50.00
26.00
47.00
37.00
42.00
22.00
22.00
21.00
26.00
41.00
44.00
22.00
46.00
29.00
36.00
24.00
29.00
46.00
44.00
20.00
22.00
20.00
22.00
20.00
20.00
19.00
19.00
19.00
19.00
24.00
19.00
19.00
33.00
26.00
14.00
29.00
15.00
68.00
848.00
174.00
112.00
534.00
268.00
640.00
26.00
538.00
334.00
450.00
100.00
158.00
25.00
30.00
155.00
180.00
22.00
341.00
130.00
213.00
38.00
184.00
265.00
204.00
10.00
30.00
19.00
52.00
11.00
11.00
23.00
45.00
48.00
41.00
51.00
35.00
12.00
pH Unit NH3-NL
mg/l
5.87
5.90
6.52
5.80
5.94
5.47
6.57
6.06
6.54
6.13
5.61
5.65
5.48
6.69
5.87
5.53
5.58
5.77
5.33
5.79
6.57
6.23
6.55
5.92
6.21
6.07
5.62
5.75
6.04
6.15
6.31
6.49
6.17
6.40
5.93
6.27
6.04
6.24
6.45
6.27
6.11
6.69
5.89
0.27
0.34
0.30
0.25
0.01
0.01
0.26
0.12
0.01
0.01
0.01
0.07
0.01
0.02
0.01
0.07
0.02
0.07
0.05
0.01
1.69
0.17
0.01
0.08
0.06
0.09
0.01
0.01
0.12
0.08
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.03
PO4
mg/l
0.01
0.01
0.01
0.01
0.01
0.02
0.17
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.02
0.01
0.01
0.01
0.01
0.16
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.02
0.05
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
98
1480
1330
1240
1350
1210
1020
1100
1420
1445
0950
1130
1450
1340
1330
1405
1310
1100
1140
1450
1515
1020
1600
1215
1435
1450
1430
1125
1040
1155
1530
1410
1525
1600
1525
1450
1345
1310
1230
1010
1055
1130
1215
1410
1340
1300
1500
1540
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal Cloudy
Low
Cloudy
Low
Cloudy
Low
Clear
Low
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Low
Cloudy
Low
Cloudy
Low
Cloudy
Low
Clear
Low
Clear
Low
Clear
Low
Clear
Low
Clear
Low
Clear
Low
Clear
Normal
Clear
Low
Clear
Low
Clear
Normal
Clear
Normal
Clear
AVERAGE
68.1
36.1
84.2
62
53.8
53.3
57.7
44.2
32.1
55.4
53.4
56
69.2
36.5
67.1
70.56
59
79.8
77
50.8
41.6
76.2
62.2
70.1
58.7
68.7
80.1
57.5
58.9
50.2
63.0
59.5
66.1
84.1
73.3
81.4
30.5
75.8
35.1
74.8
59.1
57.3
60.3
97.6
62.8
57.7
42.1
62.2
5.02
2.59
6.01
4.86
4.24
4.12
4.41
3.29
2.38
3.99
3.97
4.18
5.59
2.81
5.09
5.23
4.65
5.82
5.83
3.82
3.23
5.85
4.76
5.02
4.41
4.74
6.07
4.43
4.49
3.61
4.67
4.05
5.11
6.63
5.59
6.26
2.32
5.83
2.80
5.85
4.62
4.44
4.65
7.78
5.38
4.50
3.18
4.81
2.00
2.00
5.00
3.00
3.00
3.00
3.00
2.00
3.00
3.00
3.00
5.00
2.00
3.00
1.00
2.00
1.00
1.00
1.00
2.00
1.00
1.00
1.00
2.00
1.00
1.00
1.00
2.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
5.00
1.00
2.00
1.00
1.00
1.00
1.00
6.00
1.00
1.00
1.00
3
20.00
25.00
51.00
19.00
23.00
19.00
19.00
19.00
20.00
23.00
20.00
57.00
19.00
32.00
19.00
19.00
19.00
19.00
19.00
29.00
19.00
19.00
19.00
20.00
25.00
19.00
19.00
19.00
19.00
18.00
19.00
19.00
20.00
20.00
23.00
20.00
33.00
20.00
20.00
19.00
19.00
19.00
19.00
85.00
19.00
19.00
30.00
27
11.00
12.00
28.00
16.00
88.00
17.00
13.00
26.00
32.00
25.00
12.00
48.00
20.00
26.00
18.00
19.00
16.00
14.00
18.00
23.00
14.00
17.00
14.00
10.00
13.00
22.00
15.00
9.00
5.00
50.00
12.00
16.00
9.00
35.00
39.00
18.00
27.00
12.00
54.00
25.00
94.00
8.00
18.00
62.00
6.00
19.00
36.00
85
5.64
5.66
7.86
6.49
6.70
7.07
6.72
7.00
6.51
6.00
6.41
7.87
6.02
5.53
7.52
8.41
8.72
8.53
8.20
7.43
8.53
8.23
8.13
7.62
7.14
7.41
8.26
7.45
7.24
6.32
7.12
7.36
7.41
7.67
7.31
7.63
7.37
7.62
7.02
7.22
6.97
6.83
7.08
8.42
6.65
6.81
6.22
6.66
0.01
0.01
1.70
0.01
0.01
0.01
0.01
0.58
0.06
1.03
0.05
0.14
0.01
2.42
0.01
0.01
0.01
0.01
0.01
0.01
0.12
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.56
0.01
1.20
0.01
0.01
0.01
0.01
0.01
0.01
0.03
0.12
0.14
0.01
0.01
0.06
0.01
0.01
0.01
0.01
0.01
0.01
0.17
0.01
0.01
0.01
0.31
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.29
0.01
0.18
0.01
0.04
0.03
0.01
0.28
0.01
0.05
0.19
0
99
DOE
DOSI
BOD SI
COD SI
AN SI
SS SI
pH SI
WQI
CLASS
WQ
STATUS
28
45
93
80
43
47
68
69
65
65
85
59
40
65
34
76
65
44
76
47
49
62
100
50
83
88
60
44
86
51
96
83
70
79
92
95
57
85
59
75
84
94
71
83
83
79
83
77
83
88
92
88
88
88
88
88
83
92
83
88
88
92
65
69
77
73
73
77
73
65
88
69
79
88
83
88
88
88
88
92
92
92
88
92
92
92
70
75
78
75
72
32
36
64
54
47
62
45
67
47
56
52
72
72
73
67
52
50
72
48
64
57
70
64
48
50
73
72
73
72
73
73
74
74
74
74
70
74
74
72
69
69
74
99
99
73
88
99
99
99
93
99
98
99
93
98
93
95
99
34
83
99
92
94
91
99
99
88
92
99
99
99
99
99
99
99
99
99
99
99
99
97
80
83
89
82
89
65
6
51
58
22
42
16
83
22
37
28
55
53
84
81
53
51
85
36
56
47
77
50
42
48
92
81
87
71
91
91
85
74
73
76
72
79
91
89
89
97
88
90
73
98
92
97
93
84
85
74
98
89
82
83
87
68
87
98
94
97
90
94
92
84
87
91
93
95
97
93
96
90
95
91
94
96
95
92
98
89
67
72
84
80
75
65
61
75
75
68
77
64
73
68
65
69
76
71
82
72
58
68
88
63
77
74
74
70
71
67
90
85
84
83
89
90
81
86
80
83
85
89
85
III
III
II
II
II
III
III
III
III
III
II
III
III
III
III
III
II
III
II
III
III
III
II
III
II
III
III
III
III
III
II
II
II
II
II
II
II
II
II
II
II
II
II
SP
SP
C
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
C
SP
P
SP
C
SP
SP
SP
SP
SP
SP
SP
C
C
C
C
C
C
C
C
SP
C
C
C
C
100
76
29
93
67
55
55
61
41
24
58
55
59
77
30
74
79
63
89
86
51
37
85
68
78
63
76
89
61
63
50
69
64
73
93
82
91
22
85
28
84
63
60
65
100
68
61
38
68
92
92
79
88
88
88
88
92
88
88
88
79
92
88
96
92
96
96
96
92
96
96
96
92
96
96
96
92
96
96
96
96
96
96
96
96
79
96
92
96
96
96
96
77
96
96
96
88
73
69
44
74
71
74
74
74
73
71
73
40
74
61
74
74
74
74
74
64
74
74
74
73
69
74
74
74
74
75
74
74
73
73
71
73
60
73
73
74
74
74
74
24
74
74
63
67
99
99
34
99
99
99
99
60
94
47
95
86
99
21
99
99
99
99
99
99
88
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
61
99
43
99
99
99
99
99
99
97
88
86
91
91
82
88
58
88
90
83
80
84
91
73
86
83
87
87
88
89
87
85
89
88
89
92
90
85
89
92
95
72
91
88
92
79
77
87
83
91
70
84
56
93
87
67
94
87
78
59
84
85
93
97
98
99
99
99
97
91
96
93
91
82
97
84
77
82
88
97
82
87
89
96
99
97
87
97
98
95
99
98
97
95
98
95
98
96
99
99
100
99
99
84
98
99
94
98
85
74
72
84
76
81
83
73
72
72
81
70
86
59
87
85
82
89
88
79
76
88
85
87
84
87
89
84
86
79
86
85
87
89
87
90
64
89
65
89
80
85
85
76
87
84
74
76
II
III
III
II
II
II
II
III
III
III
II
III
II
III
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
III
II
III
II
II
II
II
II
II
II
III
II
C
SP
SP
C
SP
C
C
SP
SP
SP
SP
SP
C
P
C
C
C
C
C
SP
SP
C
C
C
C
C
C
C
C
SP
C
C
C
C
C
C
SP
C
SP
C
SP
C
C
SP
C
C
SP
SP
101
HARKINS
DO mg/l
R1
BOD
R2
pH
pHt (su)
R3
PO4
R4
Sn
6
17
87
77
14
19
56
61
44
48
24
52
13
50
8
70
51
16
63
15
25
45
90
20
66
81
35
12
80
23
88
65
43
64
83
86
27
71
38
55
69
85
57
68
68
75
68
80
68
45
27
45
45
45
45
45
68
27
68
45
45
27
89
87
80
84
84
80
84
89
45
87
75
45
68
45
45
45
45
27
27
27
45
27
27
27
5.7
5.5
2.4
6.0
5.3
7.7
2.2
4.7
2.3
4.4
7.0
6.8
7.6
1.6
5.7
7.4
7.1
6.2
8.4
6.1
2.2
3.9
2.3
5.4
4.0
4.7
6.9
6.3
4.8
4.3
3.5
2.6
4.2
3.0
5.4
3.7
4.8
3.8
2.8
3.7
4.5
1.6
5.6
74
72
44
76
69
89
40
64
43
61
84
81
88
36
74
86
85
78
90
77
40
56
42
71
58
63
83
79
65
60
52
46
59
50
70
53
65
55
48
53
62
36
73
1
1
1
1
1
75
84
1
1
1
1
1
1
1
1
75
1
1
1
1
83
1
1
1
1
1
1
1
75
80
1
1
1
1
1
1
1
1
1
1
1
1
1
0.19
11.13
7.47
0.35
8.70
16.41
7.12
4.35
3.65
1.41
3.99
1.15
5.01
2.50
14.40
3.96
0.96
7.68
0.79
12.75
2.95
12.35
0.68
5.93
8.89
2.02
0.87
16.88
10.04
11.46
6.32
3.15
6.62
9.59
10.92
3.26
9.29
5.01
4.99
8.58
13.88
6.35
102
53
3
78
48
30
28
31
10
2
22
20
29
67
5
58
60
40
72
73
18
9
75
47
53
31
46
79
33
36
11
42
25
59
84
67
82
1
73
4
75
39
34
40
89
62
37
7
674.92
27
27
75
45
45
45
45
27
45
45
45
75
27
45
1
27
1
1
1
27
1
1
1
27
1
1
1
27
1
1
1
1
1
1
1
1
75
1
27
1
1
1
1
80
1
1
1
674.92
6.8
6.7
0.9
2.6
1.5
0.1
1.4
0.0
2.5
5.0
3.0
0.9
4.9
7.4
0.5
1.4
1.7
1.5
1.2
0.4
1.5
1.2
1.1
0.6
0.1
0.4
1.3
0.5
0.2
3.4
0.1
0.4
0.4
0.7
0.3
0.6
0.4
0.6
0.0
0.2
0.2
0.9
0.1
1.4
1.8
1.0
3.9
82
80
23
46
33
3
30
1
45
68
49
24
67
86
17
31
38
34
27
15
34
28
26
18
6
13
29
16
9
51
5
11
13
21
10
20
12
18
2
8
7
22
4
32
39
25
57
674.92
1
1
82
1
1
1
1
1
1
84
1
1
1
90
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
89
1
86
1
79
78
1
88
1
80
87
674.92
5.86
2.56
21.33
4.56
4.13
8.97
4.58
10.41
2.05
11.42
2.00
4.56
8.08
12.73
15.47
9.55
10.28
15.48
16.58
7.86
9.04
16.84
12.56
10.41
14.43
14.54
17.55
8.56
14.24
7.47
15.63
13.07
16.33
19.83
18.23
19.53
17.28
17.95
20.88
20.16
23.93
20.60
15.62
24.25
13.11
20.88
18.04
103
103
TABLE B4 : ROMPIN 2001
STATE
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
BASIN
COLOUR
WKA
No.
STA No.
SNO
SUNGAI
SMP-DAT
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
L.Brown
L. Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
L. Brown
Brown
Brown
Brown
Brown
L. Brown
Brown
Brown
L. Brown
Brown
L.Black
L. Black
Brown
Brown
Brown
Brown
Brown
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
4RP05
4RP06
4RP07
4RP08
4RP09
4RP10
4RP11
4RP19
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP20
4RP21
4RP01
4RP06
4RP07
4RP08
4RP09
4RP10
4RP11
4RP19
4RP05
4RP01
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP20
4RP21
4RP06
4RP07
4RP08
4RP09
4RP10
4RP11
4RP19
2832604
3130606
3129624
3030623
3029682
2929609
2928605
2928611
2829615
2730614
2730620
2929616
2729617
2630625
2729618
2828613
2828604
2834602
3130606
3129624
3030623
3029682
2929609
2928605
2928611
2832604
2834602
2829615
2730614
2730620
2929616
2729617
2630625
2729618
2828613
2828604
3130606
3129624
3030623
3029682
2929609
2928605
2928611
ROMPIN
AUR
JERAM
ROMPIN
ROMPIN
KERATONG
KEPASING
KERATONG
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
PUKIN
REKOH
KERATONG
ROMPIN
AUR
JERAM
ROMPIN
ROMPIN
KERATONG
KEPASING
KERATONG
ROMPIN
ROMPIN
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
PUKIN
REKOH
KERATONG
AUR
JERAM
ROMPIN
ROMPIN
KERATONG
KEPASING
KERATONG
11-Jan-01
16-Jan-01
16-Jan-01
16-Jan-01
16-Jan-01
16-Jan-01
16-Jan-01
17-Jan-01
18-Jan-01
18-Jan-01
18-Jan-01
18-Jan-01
18-Jan-01
18-Jan-01
18-Jan-01
18-Jan-01
18-Jan-01
22-Jan-01
26-Mar-01
26-Mar-01
26-Mar-01
26-Mar-01
26-Mar-01
26-Mar-01
26-Mar-01
27-Mar-01
28-Mar-01
29-Mar-01
29-Mar-01
29-Mar-01
29-Mar-01
29-Mar-01
29-Mar-01
29-Mar-01
29-Mar-01
29-Mar-01
25-May-01
25-May-01
25-May-01
25-May-01
25-May-01
25-May-01
25-May-01
104
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
L.Brown
Brown
Brown
L.Brown
L.Brown
Brown
Brown
Brown
Clear
Brown
Brown
L.Brown
L.Brown
L.Brown
Clear
L.Brown
Brown
Brown
Brown
Brown
L.Black
L.Black
L.Brown
Clear
Clear
Green
Clear
L.Black
L.Black
Brown
L.Brown
L.Brown
L.Brown
Brown
Brown
L.Brown
L.Brown
L.Brown
Brown
L.Brown
Clear
L.Brown
L.Brown
Brown
L.Brown
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
4RP05
4RP01
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP20
4RP21
4RP01
4RP05
4RP06
4RP07
4RP08
4RP09
4RP10
4RP11
4RP19
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP20
4RP21
4RP06
4RP07
4RP08
4RP09
4RP10
4RP11
4RP19
4RP01
4RP05
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP20
4RP21
2832604
2834602
2829615
2730614
2730620
2929616
2729617
2630625
2729618
2828613
2828604
2834602
2832604
3130606
3129624
3030623
3029682
2929609
2928605
2928611
2829615
2730614
2730620
2929616
2729617
2630625
2729618
2828613
2828604
3130606
3129624
3030623
3029682
2929609
2928605
2928611
2834602
2832604
2829615
2730614
2730620
2929616
2729617
2630625
2729618
2828613
2828604
ROMPIN
ROMPIN
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
PUKIN
REKOH
KERATONG
ROMPIN
ROMPIN
AUR
JERAM
ROMPIN
ROMPIN
KERATONG
KEPASING
KERATONG
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
PUKIN
REKOH
KERATONG
AUR
JERAM
ROMPIN
ROMPIN
KERATONG
KEPASING
KERATONG
ROMPIN
ROMPIN
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
PUKIN
REKOH
KERATONG
28-May-01
29-May-01
30-May-01
30-May-01
30-May-01
30-May-01
30-May-01
30-May-01
30-May-01
30-May-01
30-May-01
4-Jul-01
15-Jul-01
19-Jul-01
19-Jul-01
19-Jul-01
19-Jul-01
19-Jul-01
19-Jul-01
19-Jul-01
24-Jul-01
24-Jul-01
24-Jul-01
24-Jul-01
24-Jul-01
24-Jul-01
24-Jul-01
24-Jul-01
24-Jul-01
10-Sep-01
10-Sep-01
10-Sep-01
10-Sep-01
10-Sep-01
10-Sep-01
10-Sep-01
11-Sep-01
20-Sep-01
23-Sep-01
23-Sep-01
23-Sep-01
23-Sep-01
23-Sep-01
23-Sep-01
23-Sep-01
23-Sep-01
23-Sep-01
105
TIME
Water
Weather
DO %
Sat
DO
mg/l
BOD
mg/l
COD
mg/l
SS
mg/l
pH
Unit
1400
1400
1240
1320
1200
1120
1045
1630
1050
1120
1155
1230
1420
1350
1315
1600
1530
1340
1525
1400
1640
1300
1210
1130
1045
1530
1515
1100
1140
1315
1400
1450
1530
1620
1600
1730
1500
1230
1415
1120
1040
1015
0920
Normal
High
High
High
High
High
High
High
High
High
High
High
High
High
High
High
High
Normal
High
High
High
High
High
High
High
High
Normal
High
High
High
High
High
High
High
High
High
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Clear
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
54.5
87.3
83.2
74.1
79.7
78.9
51.6
83.4
71.9
73.2
90.2
83.8
89.6
78.8
84.8
71.4
72.3
77.2
75
89.5
67.7
68.1
65.9
59
68.5
61.5
58.8
47.7
82.2
78.3
67.8
87.4
53.1
73.5
61.3
55.7
78.2
88.6
81.6
76.5
78.7
70.4
77.1
4.27
7.25
6.76
5.99
6.39
6.41
4.18
6.84
5.93
8.74
7.41
7.02
7.46
6.44
7.01
5.84
5.99
6.30
6.08
7.09
5.29
5.4
5.13
4.62
5.35
4.82
4.48
3.81
6.61
6.33
5.42
6.94
4.16
5.86
4.81
4.36
6.11
6.8
6.17
5.81
5.93
5.37
5.9
2
2
2
2
2
2
2
2
1
2
1
2
2
2
1
2
6
2
1
1
1
2
1
1
1
1
1
2
2
1
2
1
2
1
1
1
1
1
1
1
2
3
2
29
21
24
21
26
29
25
29
27
24
24
27
41
34
24
39
121
34
19
10
17
24
19
17
17
13
18
40
21
14
23
14
33
15
20
11
19
20
20
19
22
59
19
22
56
93
60
48
81
60
111
86
55
63
121
82
118
34
32
123
69
34
21
20
28
33
14
35
28
21
132
38
39
90
23
52
54
14
53
10
27
27
2
20
13
23
6.25
7.02
7.03
6.99
6.97
6.90
6.67
7.06
6.50
6.61
6.49
6.69
7.27
6.78
6.62
6.39
6.89
5.83
6.49
6.81
6.73
6.71
6.87
6.84
7.61
6.18
6.09
7.4
6.53
6.51
6.59
7
7.09
7.01
6.19
6.73
6.04
6.81
8.84
6.78
6.87
6.73
6.8
NH3NL
mg/l
0.54
0.03
0.1
0.09
0.05
0.16
0.16
0.15
0.11
0.03
0.01
0.21
0.01
0.94
0.01
0.01
0.07
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.16
0.01
0.01
0.25
0.01
3.63
0.01
0.01
0.3
0.01
0.01
0.01
0.01
0.01
0.01
0.01
PO4
mg/l
0.01
0.01
0.01
0.01
0.01
0.02
0.02
0.01
0.01
0.01
0.01
0.01
0.01
0.09
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.14
0.01
0.01
0.04
0.01
0.59
0.01
0.01
0.11
0.01
0.03
0.01
0.01
0.01
0.01
0.01
106
1430
1630
1100
1140
1230
1305
1530
1440
1410
1725
1650
1600
1540
1620
1530
1450
1320
1230
1200
1100
1105
1140
1220
1330
1545
1500
1420
1700
1630
1735
1620
1700
1330
1510
1425
1145
1600
1530
1100
1145
1240
1330
1930
1520
1600
1810
1730
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
clear
Normal
clear
Low
clear
Low
clear
Low
clear
Low
clear
Low
clear
Low
clear
Low
clear
Low
clear
Low
clear
Low
clear
Low
clear
Normal
clear
Normal Cloudy
Low
Cloudy
Low
clear
Normal
clear
Normal Cloudy
Normal
Clear
Low
Cloudy
Normal
Clear
Low
Clear
Low
Clear
Normal
Clear
High
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
low
Clear
low
clear
AVERAGE
69.9
60.7
38.1
85.4
88
75.7
82.1
68.5
92.8
51.6
65.5
77.3
76.3
79.6
88.7
80.5
80.8
79.8
89.5
78.3
19.8
86.5
85
70.1
80.7
61.2
85.3
61.9
70.7
86.4
96.6
88.5
83.4
86.9
84.9
85.3
97.6
79.2
32.8
91.6
92.8
87.4
96.8
63.3
84.4
56.5
65.6
75.0
5.34
4.84
3.01
6.73
7.01
6.07
6.44
5.1
7.3
3.99
5.07
5.5
5.81
6.35
6.6
6.07
6.13
7.42
7.83
8.86
1.52
6.61
6.55
5.41
6.3
5.1
5.57
4.78
5.34
7.04
7.29
6.73
6.42
6.5
6.95
6.57
7.73
6.05
3.44
7.05
7.14
6.79
7.23
4.78
6.96
4.31
5.02
5.97
1
1
2
2
1
2
2
4
1
3
1
2
1
1
1
1
1
2
2
2
5
1
2
1
1
14
1
2
2
1
1
1
2
2
1
2
2
1
1
1
1
1
1
9
1
2
2
2
19
43
18
21
21
21
25
41
18
47
18
52
19
20
19
20
20
25
23
22
27
19
32
20
20
93
19
29
22
20
20
20
21
21
19
22
33
18
20
18
20
20
19
59
20
29
29
26
16
46
42
27
22
43
32
38
10
27
23
78
14
16
12
21
28
38
30
32
15
16
104
14
4
40
15
9
18
20
11
15
15
18
12
14
59
12
11
11
11
12
35
18
12
25
36
37
6.56
6.57
6.64
6.78
6.66
6.71
7.02
7.25
7.81
6.17
6.78
7.16
6.88
7.13
6.73
7.18
7.14
7.22
6.84
7.3
6.98
7.14
6.58
7.15
8.17
9.6
7.11
6.53
7.46
6.07
6.47
6.38
6.39
6.7
6.45
6.2
5.27
6.46
6.49
6.86
6.93
6.75
6.91
7.68
7.21
6.13
7.06
6.83
0.01
0.01
0.01
0.01
0.04
0.1
0.04
4.09
0.01
0.04
0.04
0.01
0.01
0.01
0.01
0.01
0.01
0.16
0.5
0.01
0.33
0.01
0.04
0.3
0.01
0.01
0.01
0.15
0.59
0.01
0.01
0.01
0.01
0.05
0.01
0.01
0.01
0.12
0.28
0.01
0.01
0.01
0.01
35.6
0.03
0.02
0.1
0.56
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.38
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.11
0
0
0
0
0.06
0
0
0.06
4.76
0.13
0.4
0.01
0.34
0.22
0.07
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0
107
DOE
DOSI
BOD SI
COD SI
AN SI
SS SI
pH SI
WQI
CLASS
WQ
STATUS
56
95
92
83
89
88
52
92
80
82
97
93
97
88
93
80
81
86
84
97
75
76
73
63
76
67
63
46
91
88
75
95
54
82
66
58
87
96
91
86
88
79
86
92
92
92
92
92
92
92
92
96
92
96
92
92
92
96
92
77
92
96
96
96
92
96
96
96
96
96
92
92
96
92
96
92
96
96
96
96
96
96
96
92
88
92
64
73
70
73
67
64
69
64
66
70
70
66
52
59
70
54
11
59
74
86
76
70
74
76
76
82
75
53
73
80
71
80
60
79
73
84
74
73
73
74
72
38
74
62
97
90
91
95
84
84
85
89
97
99
78
99
50
99
99
93
99
99
99
99
99
99
99
99
99
99
84
99
99
74
99
4
99
99
69
99
99
99
99
99
99
99
85
70
57
68
73
60
68
58
59
70
67
57
60
57
79
80
56
65
79
86
86
82
80
89
79
82
86
56
77
77
58
85
71
70
89
71
92
83
83
96
86
90
85
94
99
99
100
100
99
98
99
97
98
97
98
98
99
98
96
99
88
97
99
99
98
99
99
96
93
92
97
97
97
98
99
99
99
94
99
91
99
71
99
99
99
99
74
88
83
84
86
81
75
82
81
84
88
81
83
75
89
83
69
82
88
94
88
85
86
85
86
85
84
69
88
89
77
92
63
87
85
78
90
91
86
91
89
81
89
III
II
II
II
II
II
III
II
II
II
II
II
II
III
II
II
III
II
II
I
II
II
II
II
II
II
II
III
II
II
II
I
III
II
II
II
II
II
II
II
II
II
II
SP
C
C
C
C
C
SP
C
SP
C
C
C
C
SP
C
C
SP
C
C
C
C
C
C
C
C
C
C
SP
C
C
SP
C
SP
C
C
SP
C
C
C
C
C
C
C
108
78
65
32
94
96
85
91
76
100
52
72
86
85
89
96
90
90
89
97
88
10
95
94
78
90
66
94
67
79
95
100
96
92
95
93
94
100
88
25
98
100
95
100
69
93
59
72
84
96
96
92
92
96
92
92
83
96
88
96
92
96
96
96
96
96
92
92
92
79
96
92
96
96
49
96
92
92
96
96
96
92
92
96
92
92
96
96
96
96
96
96
65
96
92
92
93
74
51
75
73
73
73
69
52
75
47
75
43
74
73
74
73
73
69
71
72
66
74
61
73
73
20
74
64
72
73
73
73
73
73
74
72
60
75
73
75
73
73
74
38
73
64
64
67
99
99
99
99
96
90
96
0
99
96
96
99
99
99
99
99
99
84
63
99
69
99
96
69
99
99
99
85
60
99
99
99
99
95
99
99
99
88
71
99
99
99
99
0
97
98
90
61
88
74
76
83
85
75
80
77
92
83
85
61
89
88
91
86
82
77
81
80
89
88
59
89
95
76
89
92
87
86
91
89
89
87
91
89
68
91
91
91
91
91
79
87
91
84
78
78
97
98
98
99
98
98
99
98
94
93
99
99
99
99
99
99
99
99
99
98
100
99
98
99
88
51
99
97
97
92
97
96
96
98
96
94
66
97
97
99
99
99
99
95
99
93
99
99
88
79
75
90
91
85
88
65
93
75
86
80
90
90
92
90
90
85
84
88
64
92
83
84
90
60
92
82
81
90
93
92
90
90
92
90
83
89
72
93
93
92
92
59
91
80
82
80
II
II
III
II
II
II
II
III
I
III
II
II
II
II
I
II
II
II
II
II
III
I
II
II
II
III
II
II
II
II
I
II
II
II
II
II
II
II
III
I
I
I
II
III
II
II
II
II
C
SP
SP
C
C
C
C
SP
C
SP
C
SP
C
C
C
C
C
C
C
C
SP
C
C
C
C
SP
C
C
SP
C
C
C
C
C
C
C
C
C
SP
C
C
C
C
P
C
SP
C
SP
109
DO mg/l
R1
BOD
R2
8
81
66
40
53
54
7
69
38
89
84
75
86
56
73
35
40
49
45
78
23
28
22
12
26
16
11
4
62
51
30
70
6
36
15
10
46
68
48
33
38
27
37
46
46
46
46
46
46
46
46
1
46
1
46
46
46
1
46
88
46
1
1
1
46
1
1
1
1
1
46
46
1
46
1
46
1
1
1
1
1
1
1
46
84
46
HARKINS
pH
pHt (su)
R3
3.8
0.0
0.0
0.0
0.2
0.5
1.7
0.1
2.5
2.0
2.6
1.6
0.3
1.1
1.9
3.1
0.6
5.9
2.6
1.0
1.4
1.5
0.6
0.8
0.6
4.1
4.6
0.4
2.4
2.5
2.1
0.0
0.1
0.0
4.1
1.4
4.8
1.0
1.8
1.1
0.6
1.4
1.0
80
3
5
6
16
28
56
7
69
61
70
55
22
42
60
77
29
89
70
39
48
52
32
36
31
83
86
25
66
68
62
1
9
2
82
48
88
39
59
42
32
48
41
PO4
R4
Sn
7
7
7
7
7
73
73
7
7
7
7
7
7
80
7
7
7
7
7
7
7
7
7
7
7
7
7
84
7
7
76
7
89
7
7
81
7
75
7
7
7
7
7
16.68
13.32
9.63
9.07
13.60
7.31
13.41
4.51
10.26
11.71
7.58
14.00
13.45
9.85
1.09
7.98
2.61
5.18
12.75
4.85
1.75
6.70
5.89
7.04
3.11
3.07
13.29
4.61
5.95
8.25
17.94
17.44
13.18
3.08
12.64
5.23
17.68
6.02
6.07
4.75
4.19
3.50
110
24
17
2
64
73
43
56
20
83
5
19
31
33
52
61
43
47
85
88
90
1
62
59
29
49
20
32
13
24
76
82
64
55
58
71
60
87
42
3
77
79
67
80
13
72
9
18
674.92
1
1
46
46
1
46
46
86
1
84
1
46
1
1
1
1
1
46
46
46
87
1
46
1
1
90
1
46
46
1
1
1
46
46
1
46
46
1
1
1
1
1
1
89
1
46
46
674.92
2.2
2.2
1.8
1.1
1.7
1.5
0.0
0.3
0.8
4.2
1.1
0.2
0.6
0.1
1.4
0.2
0.1
0.2
0.8
0.3
0.1
0.1
2.1
0.2
1.2
2.6
0.1
2.4
0.5
4.7
2.7
3.1
3.1
1.5
2.8
4.0
8.7
2.7
2.6
0.7
0.4
1.3
0.4
0.7
0.2
4.4
0.1
65
64
58
42
57
52
3
21
38
84
42
17
30
12
48
18
13
20
36
23
10
13
63
15
46
73
11
66
27
87
74
79
77
54
76
81
90
75
70
35
24
47
26
34
19
85
7
674.92
7
7
7
7
7
7
7
87
7
7
7
7
7
7
7
7
7
7
7
7
81
1
1
1
1
77
1
1
77
90
83
88
7
86
85
79
7
7
7
7
7
7
7
7
7
7
7
674.92
3.71
3.50
0.77
6.79
10.04
2.98
12.20
17.22
13.95
2.18
5.32
6.66
7.63
12.72
8.68
10.51
11.91
14.12
12.35
14.78
17.94
14.03
4.34
9.97
7.26
10.41
10.96
0.38
11.80
20.13
19.73
17.37
3.29
13.95
17.92
11.69
9.40
4.75
3.19
13.05
15.12
9.77
15.00
5.91
14.58
0.04
8.04
111
TABLE B5 : ROMPIN 2002
STATE
BASIN
COLOUR
WKA
No.
STA No.
SNO
SUNGAI
SMP-DAT
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
L.Brown
Brown
L.Black
Clear
L.Brown
L.Brown
L.Brown
L.Brown
L.Brown
L.Brown
Clear
Brown
Clear
Brown
L.Brown
Brown
Brown
Brown
L.Brown
L.Black
L.Brown
L.Brown
Brown
L.Brown
L.Brown
L.Brown
Brown
L.Black
L.Brown
L.Brown
L.Brown
Clear
L.Brown
Clear
Brown
L.Black
Brown
L.Brown
L.Brown
M.Brown
M.Brown
M.Brown
M.Brown
L.Brown
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
4RP01
4RP05
4RP06
4RP07
4RP08
4RP09
4RP10
4RP11
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP19
4RP20
4RP21
4RP01
4RP06
4RP07
4RP08
4RP09
4RP10
4RP11
4RP19
4RP05
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP20
4RP21
4RP01
4RP05
4RP06
4RP07
4RP08
4RP09
4RP10
4RP11
2834602
2832604
3130606
3129624
3030623
3029682
2929609
2928605
2829615
2730614
2730620
2929616
2729617
2630625
2729618
2928611
2828613
2828604
2834602
3130606
3129624
3030623
3029682
2929609
2928605
2928611
2832604
2829615
2730614
2730620
2929616
2729617
2630625
2729618
2828613
2828604
2834602
2832604
3130606
3129624
3030623
3029682
2929609
2928605
ROMPIN
ROMPIN
AUR
JERAM
ROMPIN
ROMPIN
KERATONG
KEPASING
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
PUKIN
KERATONG
REKOH
KERATONG
ROMPIN
AUR
JERAM
ROMPIN
ROMPIN
KERATONG
KEPASING
KERATONG
ROMPIN
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
PUKIN
REKOH
KERATONG
ROMPIN
ROMPIN
AUR
JERAM
ROMPIN
ROMPIN
KERATONG
KEPASING
16-Jan-02
21-Jan-02
23-Jan-02
23-Jan-02
23-Jan-02
23-Jan-02
23-Jan-02
23-Jan-02
01-Feb-02
01-Feb-02
01-Feb-02
01-Feb-02
01-Feb-02
01-Feb-02
01-Feb-02
01-Feb-02
01-Feb-02
01-Feb-02
12-Mar-02
13-Mar-02
13-Mar-02
13-Mar-02
13-Mar-02
13-Mar-02
13-Mar-02
13-Mar-02
18-Mar-02
19-Mar-02
19-Mar-02
19-Mar-02
19-Mar-02
19-Mar-02
19-Mar-02
19-Mar-02
19-Mar-02
19-Mar-02
12-May-02
14-May-02
14-May-02
14-May-02
14-May-02
14-May-02
14-May-02
14-May-02
112
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
PAHANG
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
ROMPIN
L.Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
Brown
L.Black
Brown
Brown
Brown
L.Brown
L.Brown
Brown
Brown
Brown
Brown
Clear
Green
Clear
L.Brown
Clear
Clear
L.Brown
Clear
Clear
L.Brown
L.Brown
L.Brown
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Brown
Brown
D.Brown
Clear
Clear
Clear
Clear
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
4RP19
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP20
4RP21
4RP06
4RP07
4RP08
4RP09
4RP10
4RP11
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP19
4RP20
4RP21
4RP05
4RP01
4RP01
4RP06
4RP07
4RP08
4RP09
4RP10
4RP11
4RP19
4RP12
4RP13
4RP14
4RP15
4RP16
4RP17
4RP18
4RP20
4RP21
4RP05
2928611
2829615
2730614
2730620
2929616
2729617
2630625
2729618
2828613
2828604
3130606
3129624
3030623
3029682
2929609
2928605
2829615
2730614
2730620
2929616
2729617
2630625
2729618
2928611
2828613
2828604
2832604
2834602
2834602
3130606
3129624
3030623
3029682
2929609
2928605
2928611
2829615
2730614
2730620
2929616
2729617
2630625
2729618
2828613
2828604
2832604
KERATONG
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
PUKIN
REKOH
KERATONG
AUR
JERAM
ROMPIN
ROMPIN
KERATONG
KEPASING
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
PUKIN
KERATONG
REKOH
KERATONG
ROMPIN
ROMPIN
ROMPIN
AUR
JERAM
ROMPIN
ROMPIN
KERATONG
KEPASING
KERATONG
KERATONG
JEKATIH
JEKATIH
PUKIN
PUKIN
BAKAR
PUKIN
REKOH
KERATONG
ROMPIN
14-May-02
20-May-02
20-May-02
20-May-02
20-May-02
20-May-02
20-May-02
20-May-02
20-May-02
20-May-02
18-Jul-02
18-Jul-02
18-Jul-02
18-Jul-02
18-Jul-02
18-Jul-02
18-Jul-02
18-Jul-02
18-Jul-02
18-Jul-02
18-Jul-02
18-Jul-02
18-Jul-02
18-Jul-02
18-Jul-02
18-Jul-02
19-Jul-02
31-Jul-02
10-Sep-02
11-Sep-02
11-Sep-02
11-Sep-02
11-Sep-02
11-Sep-02
11-Sep-02
11-Sep-02
12-Sep-02
12-Sep-02
12-Sep-02
12-Sep-02
12-Sep-02
12-Sep-02
12-Sep-02
12-Sep-02
12-Sep-02
13-Sep-02
113
TIME
Water
Weather
DO %
Sat
DO
mg/l
BOD
mg/l
COD
mg/l
1500
1505
1550
1130
1500
1300
1210
1130
1045
1130
1210
1400
1445
1530
1645
1845
1800
1730
1130
1720
1500
1615
1345
1250
1210
1100
1600
1015
1100
1140
1230
1500
1420
1345
1200
1615
1540
1525
1542
1405
1504
1242
1210
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Clear
Clear
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
57
68.7
78.2
92.5
83.9
77.6
77.3
66.7
58.6
81
82.8
74.4
84.6
72
78.6
63.2
43.6
62.5
71.1
66.7
95.5
82.6
80.8
82.9
77.4
74.1
79.6
58.3
85.4
88.5
83.6
87.5
85.1
93.3
24.9
67.2
67.2
71.5
64.1
97
82.3
80.9
82.3
4.58
5.49
6.39
7.34
6.71
6.2
6.25
5.36
4.77
6.67
6.83
6.09
7.04
5.67
6.33
5.02
3.48
5.01
5.58
5.32
7.12
6.4
6.24
6.39
5.58
5.83
6.04
4.55
6.74
6.95
6.55
6.61
6.31
7.31
1.97
5.11
5.06
5.39
5.02
7.23
6.09
6.1
6.23
2
1
1
1
1
1
1
1
1
1
1
1
1
5
1
2
2
1
2
1
1
1
1
1
2
1
2
1
1
1
2
2
2
1
2
2
1
1
1
1
2
1
1
37
19
19
19
18
19
19
19
19
18
19
19
18
22
19
19
37
19
27
19
19
19
19
19
21
19
22
20
19
19
21
22
23
19
39
21
20
19
20
17
20
17
18
SS pH Unit NH3-NL
mg/l
mg/l
14
12
7
8
61
23
23
11
28
18
12
17
8
16
8
18
11
20
67
<1
<1
16
15
12
<1
4
6
11
7
11
8
6
8
5
46
9
65
5
6
4
45
18
24
5.8
5.9
6.71
7.17
6.78
6.52
6.31
6.49
4.07
5.24
5.62
5.77
6.15
6.21
5.79
5.81
4.97
5.57
6.17
6.51
7.22
6.95
6.81
6.89
7.11
6.64
6.64
6.88
6.76
6.82
6.88
7.07
7.25
7.09
6.17
6.95
5.52
5.98
5.76
6.32
6.46
6.42
6.65
0.01
0.117
0.01
0.01
0.01
0.02
0.08
0.03
0.43
0.01
0.04
0.09
0.06
0.39
0.03
0.01
0.01
0.14
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.04
0.01
0.01
PO4
mg/l
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
12.9
1.33
3.9
21.6
32.2
41.4
8.84
3.92
3.24
1.24
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.06
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.02
0.01
0.03
114
1138
1046
1135
1220
1236
1307
1440
1415
1342
1555
1530
1705
1550
1630
1405
1335
1305
1210
1230
1300
1340
1520
1440
1420
1210
1600
1640
1535
1700
1640
1535
1620
1700
1410
1340
1310
1225
1205
1225
1250
1325
1440
1420
1355
1530
1550
1620
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Low Drizzling
Normal
Clear
Low
Cloudy
Low
Clear
Low
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Low
Clear
Normal
Clear
Normal
Clear
Low
Clear
Low
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal Cloudy
Normal Cloudy
Normal Cloudy
Normal Cloudy
Normal
Clear
Normal
Clear
Normal Cloudy
Normal Cloudy
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
AVERAGE
57.9
77.4
65
93.4
94.5
91
93.3
105.4
96.5
50.2
85.3
40.3
89.3
83.8
85.3
90.3
47.7
37.1
92.8
92.1
80.8
83.5
100
93
84.8
28.6
70.3
74.9
92.5
105.9
60.8
90.7
77.6
80.3
80
72.7
80.7
9.2
95.7
102
85.8
94.2
23.5
98.7
69.6
77.1
76
76.6
4.41
5.91
5.02
7.17
7.35
7
7.23
7.49
7.58
3.84
6.4
3.19
6.8
6.36
6.48
6.91
3.78
2.9
7.24
7.09
6.26
6.44
7.41
7.04
6.57
2.28
5.33
5.67
6.63
7.87
4.84
7.07
5.99
6.26
6.24
5.78
6.37
0.72
7.42
7.92
6.82
7.38
1.97
7.65
5.51
5.86
5.88
5.94
3
1
1
1
1
1
1
9
1
3
1
1
1
1
1
1
2
3
1
1
2
1
15
1
1
3
1
1
1
2
1
1
2
1
2
2
2
3
1
1
1
1
4
1
2
2
1
2
41
20
20
17
18
18
19
69
19
55
20
20
20
19
18
17
22
43
18
20
19
17
82
17
20
47
20
18
20
38
20
17
26
19
23
24
24
54
18
17
17
20
78
18
35
28
18
24
8
8
16
10
11
5
7
17
16
22
28
6
15
23
18
8
4
13
57
2
10
2
32
1
5
19
5
5
11
58
18
22
26
19
17
5
10
14
21
5
17
11
97
3
6
6
6
17
6.87
6.53
7.18
7.13
7.34
6.88
7.15
8.04
6.65
5.81
6.77
6.52
6.91
6.93
6.9
6.99
6.88
7.24
7.08
6.94
7
7.86
8.48
7.15
7.03
6.5
6.98
6.38
6.81
7
6.55
7.21
7.11
7.46
7.33
7.62
7.32
6.94
7.33
7.24
7.26
8.63
9.22
7.26
6.93
7.31
7.13
6.76
0.13
0.01
0.11
2.46
0.01
0.01
0.01
5.4
0.01
0.03
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.35
0.01
0.9
0.01
0.01
0.59
0.01
0.36
0.01
0.01
0.01
0.01
0.01
0.01
0.07
0.01
1.04
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.07
0.01
0.4
0.16
0.07
0.02
0.01
0.01
0.01
0.01
0.01
0.41
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.09
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.02
0.05
0.01
0.09
0.01
0.01
0.01
0.01
0.16
0.01
0.01
0.01
0.01
1
115
DOE
DOSI
BOD SI
COD SI
AN SI
SS SI
pH SI
WQI
CLASS
WQ
STATUS
60
76
87
100
93
87
86
74
62
90
92
83
93
80
88
69
40
68
79
74
100
92
90
92
87
83
89
62
94
96
92
95
94
100
15
74
74
80
70
100
91
90
91
92
96
96
96
96
96
96
96
96
96
96
96
96
79
96
92
92
96
92
96
96
96
96
96
92
96
92
96
96
96
92
92
92
96
92
92
96
96
96
96
92
96
96
56
74
74
74
75
74
74
74
74
75
74
74
75
72
74
74
56
74
66
74
74
74
74
74
73
74
72
73
74
74
73
72
71
74
54
73
73
74
73
76
73
76
75
99
88
99
99
99
98
92
97
66
99
96
91
94
67
97
99
99
86
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
99
96
99
99
89
91
93
93
68
85
85
91
82
87
91
88
93
88
93
87
91
86
65
100
100
88
89
91
100
95
94
91
93
91
93
94
93
95
74
92
66
95
94
95
74
87
84
88
89
98
99
99
97
95
97
30
65
84
87
93
94
87
88
56
83
93
97
99
100
99
99
99
98
98
99
99
99
99
99
98
99
93
100
82
91
87
95
97
96
98
79
85
91
94
88
89
88
87
70
87
89
87
91
80
89
84
71
82
82
89
95
91
91
92
91
90
90
85
92
93
91
92
91
94
67
87
82
89
86
94
87
91
91
II
II
II
I
II
II
II
II
III
II
II
II
II
II
II
II
III
II
II
II
I
II
II
II
II
II
II
II
I
I
II
I
II
I
III
II
II
II
II
I
II
II
II
SP
C
C
C
C
C
C
C
SP
C
C
C
C
SP
C
C
SP
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
SP
C
C
C
C
C
C
C
C
116
61
87
71
100
100
97
100
100
100
50
94
35
96
93
94
97
46
31
100
100
90
92
100
100
93
19
78
84
100
100
66
97
87
89
89
81
90
2
100
100
94
100
14
100
77
86
85
86
88
96
96
96
96
96
96
65
96
88
96
96
96
96
96
96
92
88
96
96
92
96
46
96
96
88
96
96
96
92
96
96
92
96
92
92
92
88
96
96
96
96
83
96
92
92
96
93
52
73
73
76
75
75
74
32
74
41
73
73
73
74
75
76
72
51
75
73
74
76
25
76
73
47
73
75
73
55
73
76
67
74
71
70
70
42
75
76
76
73
27
75
58
65
75
70
87
99
89
21
99
99
99
0
99
97
99
99
99
99
99
99
99
99
99
99
69
99
51
99
99
60
99
68
99
99
99
99
99
99
93
99
47
99
99
99
99
99
99
99
93
99
67
84
93
93
88
92
91
95
93
88
88
85
82
94
89
85
87
93
95
90
69
96
92
96
80
97
95
87
95
95
91
69
87
85
83
87
88
95
92
89
86
95
88
91
55
96
94
94
94
88
99
97
99
99
98
99
99
90
98
88
99
97
99
99
99
100
99
98
99
100
99
93
83
99
99
97
100
96
99
99
97
99
99
97
98
96
98
100
98
98
98
80
61
98
99
98
99
99
78
90
85
82
94
94
94
64
93
73
90
79
92
91
92
94
81
73
90
94
86
92
65
95
92
63
89
86
93
86
85
92
87
90
88
88
82
65
93
94
92
91
54
94
85
89
86
86
II
II
II
II
I
I
I
III
I
III
II
II
I
II
II
I
II
III
II
I
II
I
III
I
I
III
II
II
I
II
II
I
II
II
II
II
II
III
I
I
I
II
III
I
II
II
II
II
SP
C
C
C
C
C
C
SP
C
SP
C
SP
C
C
C
C
C
SP
C
C
C
C
SP
C
C
SP
C
C
C
C
C
C
C
C
C
C
C
SP
C
C
C
C
P
C
C
C
C
C
117
HARKINS
DO mg/l
R1
BOD
R2
pH
pHt (su)
R3
PO4
R4
Sn
12
25
52
81
63
41
45
23
13
62
67
38
71
29
49
16
7
15
27
21
75
54
43
52
27
32
37
11
64
69
58
60
48
80
2
20
19
24
16
77
38
40
42
61
1
1
1
1
1
1
1
1
1
1
1
1
88
1
61
61
1
61
1
1
1
1
1
61
1
61
1
1
1
61
61
61
1
61
61
1
1
1
1
61
1
1
6.0
5.5
1.5
0.2
1.1
2.4
3.5
2.6
14.7
8.8
6.9
6.2
4.3
4.0
6.1
6.0
10.2
7.2
4.2
2.5
0.2
0.2
1.0
0.6
0.1
1.8
1.8
0.6
1.2
0.9
0.6
0.1
0.3
0.1
4.2
0.2
7.4
5.1
6.2
3.4
2.7
2.9
1.8
81
78
53
15
50
63
72
67
90
88
85
83
76
73
82
79
89
86
74
65
18
21
47
38
9
58
58
39
52
46
39
5
23
7
74
21
87
77
84
71
68
69
56
1
1
1
1
1
1
1
1
87
82
84
88
89
90
86
85
83
81
1
1
1
1
1
1
1
1
75
1
1
1
1
1
1
1
1
1
1
1
1
1
70
1
73
5.60
8.87
18.84
10.61
7.06
7.07
5.80
16.41
18.83
20.05
17.56
22.00
13.34
18.07
10.48
10.09
14.87
0.41
5.83
17.10
13.28
8.47
10.44
8.01
6.71
9.82
7.95
10.59
11.96
5.75
11.97
6.90
20.30
0.22
5.43
5.46
5.57
5.37
11.74
8.31
6.71
15.27
118
10
35
16
76
82
70
77
86
87
9
54
6
65
50
57
68
8
5
79
74
46
56
84
71
59
4
22
29
61
89
14
73
36
46
43
31
51
1
85
90
66
83
2
88
26
33
34
674.92
82
1
1
1
1
1
1
89
1
82
1
1
1
1
1
1
61
82
1
1
61
1
90
1
1
82
1
1
1
61
1
1
61
1
61
61
61
82
1
1
1
1
87
1
61
61
1
674.92
0.6
2.4
0.2
0.1
0.3
0.6
0.2
1.0
1.8
6.0
1.2
2.4
0.4
0.4
0.5
0.0
0.6
0.2
0.1
0.3
0.0
0.9
1.5
0.2
0.0
2.5
0.1
3.1
1.0
0.0
2.3
0.2
0.1
0.5
0.3
0.6
0.3
0.3
0.3
0.2
0.3
1.6
2.2
0.3
0.4
0.3
0.1
44
62
16
11
32
39
13
49
56
79
51
63
35
33
37
4
39
19
6
26
1
45
54
13
3
66
8
70
47
1
61
17
9
36
30
43
29
26
30
19
24
55
60
24
33
28
11
674.92
76
70
1
1
1
1
1
80
1
1
1
1
1
1
1
1
1
1
1
1
1
1
77
1
1
1
1
1
1
1
1
1
1
1
70
74
1
77
1
1
1
1
79
1
1
1
1
674.92
11.02
13.71
11.62
18.66
16.15
12.93
18.45
20.04
14.59
0.67
9.28
5.87
12.63
10.89
11.20
18.77
2.64
6.42
20.32
15.51
11.20
10.12
18.57
17.34
17.62
1.08
13.38
5.94
10.60
18.27
5.93
16.92
8.53
10.05
12.33
10.57
6.26
13.87
17.08
20.04
14.47
13.80
10.82
18.71
3.70
4.82
13.31
119
TABLE B6 : SKUDAI 1998 (EXAMPLE OF RAW DATA AND CALCULATED
DATA FOR SUNGAI SKUDAI)
STATE
BASIN
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
WKA No. STA No.
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
3SI05
3SI06
3SI07
3SI08
3SI09
3SI10
3SI11
3SI12
3SI05
3SI06
3SI07
3SI08
3SI09
3SI10
3SI11
3SI12
3SI05
3SI06
3SI07
3SI08
3SI09
3SI10
3SI11
3SI12
3SI05
3SI06
3SI07
3SI08
3SI09
3SI10
3SI11
3SI12
3SI05
3SI06
3SI07
3SI08
3SI09
3SI10
3SI11
SNO
SUNGAI
SMP-DAT
TIME
1536610
1536609
1536601
1735608
1635607
1636606
1636604
1636603
1536610
1536609
1536601
1735608
1635607
1636606
1636604
1636603
1536610
1536609
1536601
1735608
1635607
1636606
1636604
1636603
1536610
1536609
1536601
1735608
1635607
1636606
1636604
1636603
1536610
1536609
1536601
1735608
1635607
1636606
1636604
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
21-Jan-98
21-Jan-98
21-Jan-98
21-Jan-98
21-Jan-98
21-Jan-98
21-Jan-98
21-Jan-98
9-Feb-98
9-Feb-98
9-Feb-98
9-Feb-98
9-Feb-98
9-Feb-98
9-Feb-98
9-Feb-98
9-Mar-98
9-Mar-98
9-Mar-98
9-Mar-98
9-Mar-98
9-Mar-98
9-Mar-98
9-Mar-98
14-Apr-98
14-Apr-98
14-Apr-98
14-Apr-98
14-Apr-98
14-Apr-98
14-Apr-98
14-Apr-98
19-May-98
19-May-98
19-May-98
19-May-98
19-May-98
19-May-98
19-May-98
1325
1220
1150
0945
1015
1035
1055
1120
1220
1150
1135
0930
0950
1020
1040
1105
1455
1435
1335
1033
1135
1210
1235
1310
1620
1545
1520
1145
1220
1245
1310
1340
1515
1443
1418
0955
1135
1205
1235
120
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
3SI12
3SI05
3SI06
3SI07
3SI08
3SI09
3SI10
3SI11
3SI12
3SI05
3SI06
3SI07
3SI08
3SI09
3SI10
3SI11
3SI12
3SI08
3SI09
3SI10
3SI05
3SI06
3SI07
3SI11
3SI12
3SI05
3SI06
3SI07
3SI08
3SI09
3SI10
3SI11
3SI12
3SI05
3SI06
3SI07
3SI08
3SI09
3SI10
3SI11
3SI12
3SI05
3SI06
3SI07
3SI08
1636603
1536610
1536609
1536601
1735608
1635607
1636606
1636604
1636603
1536610
1536609
1536601
1735608
1635607
1636606
1636604
1636603
1735608
1635607
1636606
1536610
1536609
1536601
1636604
1636603
1536610
1536609
1536601
1735608
1635607
1636606
1636604
1636603
1536610
1536609
1536601
1735608
1635607
1636606
1636604
1636603
1536610
1536609
1536601
1735608
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
19-May-98
9-Jun-98
9-Jun-98
9-Jun-98
9-Jun-98
9-Jun-98
9-Jun-98
9-Jun-98
9-Jun-98
14-Jul-98
14-Jul-98
14-Jul-98
14-Jul-98
14-Jul-98
14-Jul-98
14-Jul-98
14-Jul-98
4-Aug-98
4-Aug-98
4-Aug-98
5-Aug-98
5-Aug-98
5-Aug-98
5-Aug-98
5-Aug-98
21-Sep-98
21-Sep-98
21-Sep-98
21-Sep-98
21-Sep-98
21-Sep-98
21-Sep-98
21-Sep-98
21-Oct-98
21-Oct-98
21-Oct-98
21-Oct-98
21-Oct-98
21-Oct-98
21-Oct-98
21-Oct-98
16-Nov-98
16-Nov-98
16-Nov-98
16-Nov-98
1305
1440
1415
1345
1050
1120
1150
1213
1240
1405
1335
1310
1040
1110
1135
1208
1235
1225
1255
1320
1305
1200
1136
1030
1100
1457
1425
1353
1035
1118
1145
1215
1240
1325
1255
1230
1005
1035
1100
1125
1155
1345
1310
1245
1005
121
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
JOHOR
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
28C
3SI09
3SI10
3SI11
3SI12
3SI05
3SI06
3SI07
3SI08
3SI09
3SI10
3SI11
3SI12
1635607
1636606
1636604
1636603
1536610
1536609
1536601
1735608
1635607
1636606
1636604
1636603
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
SKUDAI
16-Nov-98
16-Nov-98
16-Nov-98
16-Nov-98
14-Dec-98
14-Dec-98
14-Dec-98
14-Dec-98
14-Dec-98
14-Dec-98
14-Dec-98
14-Dec-98
1035
1100
1135
1200
1447
1415
1345
1100
1135
1200
1225
1305
122
Water
Weather
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Low
Low
Low
Low
Normal
Normal
Normal
Normal
Normal
Normal
Low
Low
Normal
Normal
Low
Low
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Cloudy
Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Cloudy
Cloudy
Clear
Clear
Clear
Clear
Clear
Cloudy
Clear
Clear
Cloudy
Cloudy
Cloudy
Cloudy
DO %
Sat
47
71
55
80
81
60
54
62
52
20
42
80
74
52
45
51
22
20
29
71
64
52
47
50
22
20
35
90
93
70
30
24
50
75
43
84
64
53
48
DO
mg/l
3.38
5.44
4.23
6.37
6.48
4.83
4.40
4.88
3.41
1.41
3.18
6.39
5.91
4.17
3.57
4.02
1.34
1.21
2.12
5.80
4.58
4.13
3.62
3.94
1.9
1.6
2.7
6.8
6.6
5.5
2.3
1.8
3.7
6.0
3.7
7.1
5.4
4.4
4.1
BOD
mg/l
5
3
2
2
2
2
6
3
6
5
3
2
2
4
4
3
10
7
3
2
3
4
5
4
2
3
2
2
7
4
3
5
7
6
3
3
2
8
2
COD
mg/l
26
22
14
18
22
28
30
24
164
24
8
12
12
12
12
8
42
30
22
10
22
24
30
22
184
41
29
49
24
20
81
34
50
22
23
16
19
84
33
SS
mg/l
53
190
48
25
35
54
96
150
48
41
39
19
76
47
65
50
36
530
115
43
93
44
31
18
155
70
235
37
50
60
55
820
66
112
50
16
44
254
100
pH Unit NH3-NL
mg/l
7.23
3.31
7.04
0.47
6.67
0.26
6.87
0.10
6.89
0.05
6.73
0.25
6.87
0.36
6.70
0.42
8.23
0.77
7.60
1.26
7.40
1.14
7.10
0.04
7.01
0.33
7.40
0.44
7.60
0.70
7.50
1.18
7.39
7.76
6.37
6.88
6.35
4.33
7.42
0.09
6.46
2.46
5.98
2.78
6.13
6.26
6.40
5.51
7.21
2.90
7.63
3.62
6.99
4.05
8.74
0.07
8.27
2.05
8.39
3.79
8.75
3.79
7.94
5.46
6.44
1.34
6.15
0.72
6.11
0.67
5.96
0.18
5.80
0.26
6.25
1.05
6.14
0.83
PO4
mg/l
0.49
0.09
0.35
0.15
0.05
0.08
0.08
0.10
0.04
0.03
0.02
0.01
0.02
0.03
0.01
0.02
0.02
0.04
0.03
0.02
0.07
0.03
0.05
0.02
0.83
0.57
0.21
0.12
0.23
0.35
0.45
0.15
0.01
0.01
0.02
0.01
0.03
0.03
0.02
123
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Clear
Cloudy
Clear
Clear
Clear
Cloudy
Cloudy
Clear
Clear
Cloudy
Clear
Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Clear
Cloudy
Clear
Cloudy
Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Cloudy
Cloudy
53
25
66
53
76
67
64
51
64
25
29.5
43
81
70.1
67.6
52.3
61.3
87.6
72
61.7
1.8
29.9
23.8
39.7
45
41.6
68.5
49.2
78.6
69.2
68.9
51.8
56.9
27.2
4.7
40.8
88.6
52.5
64.3
33
55.8
36.7
8.2
30.8
83
4.4
1.9
5.3
4.4
6.3
5.6
5.2
4.2
5.1
1.9
2.45
3.58
6.84
5.98
5.58
4.37
5.11
7.19
6.08
5.04
0.13
2.46
1.98
3.41
3.74
3.32
5.59
4.1
6.35
5.66
5.53
4.18
4.56
1.99
0.36
2.96
7.06
4.24
5.08
2.62
4.2
2.74
0.61
2.39
6.77
4
4
3
2
10
2
13
11
3
5
5
5
1
3
6
4
4
1
1
3
11
1
1
1
1
1
4
1
1
2
3
2
2
2
2
2
2
1
3
4
3
5
5
3
2
31
310
22
40
30
34
49
41
50
103
57
24
15
20
30
32
32
7
13
20
93
14
10
8
14
27
23
12
13
42
25
18
20
30
45
10
7
25
50
50
16
76
10
6
4
100
50
42
50
14
46
102
122
156
34
152
48
8
26
52
78
92
10
28
30
60
28
64
54
72
130
210
84
14
18
48
116
130
178
60
28
8
22
18
528
76
58
24
26
10
6.24
6.54
6.49
6.36
6.22
6.10
6.29
6.30
6.51
6.8
6.39
6.37
6.24
6.1
6.36
6.36
6.43
6.41
6.23
6.46
6.67
6.53
6.54
6.58
6.62
6.13
6.11
5.91
5.94
6.59
6
5.95
5.95
7.41
6.97
6.83
6.81
6.64
6.82
6.77
7.06
7.01
6.94
6.5
6.97
0.97
1.73
0.78
0.70
<0.01
0.11
0.78
0.81
1.06
2.11
1.66
0.86
<0.01
0.04
0.97
0.87
1.12
0.01
0.12
1.38
3.84
2.41
2.06
1.53
2.24
1.11
0.54
0.50
0.14
0.06
0.74
0.78
0.76
1.63
3.80
2.03
0.17
0.61
2.10
2.65
3.28
3.23
3.38
2.09
0.21
0.02
0.01
0.02
0.02
0.01
0.05
0.03
0.02
0.02
0.01
0.02
0.05
0.05
0.05
0.08
0.12
0.07
0.01
0.01
0.01
0.07
0.01
0.01
0.02
0.02
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.02
0.01
0.05
0.02
0.04
0.14
0.13
0.12
0.01
0.01
0.01
0.01
124
Normal
Cloudy
Normal
Cloudy
Normal
Cloudy
Normal
Clear
Low
Clear
Low
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
AVERAGE
45.5
53.9
34.3
54.4
48.2
44.9
33.0
88.2
60.4
39.5
29.9
46.4
51.9
3.74
4.27
2.8
4.31
3.69
3.51
2.54
7.03
4.69
3.08
2.31
3.50
4.13
1
4
6
3
6
4
2
2
1
4
4
3
4
4
13
51
44
47
24
18
27
18
28
53
37
35
28
32
738
108
30
156
28
8
10
16
66
162
92
6.12
6.46
6.51
6.65
6.09
7.92
7.15
6.27
5.66
6.02
7.76
6.18
6.71
0.09
2.12
2.68
3.26
2.91
3
2.42
0.2
0.46
3.64
3.91
3.75
1.75
0.01
0.06
0.05
0.09
0.01
0.01
0.01
0.01
0.08
0.14
0.18
0.05
0.07
125
DOE
DOSI
BOD SI
COD SI
AN SI
SS SI
pH SI
WQI
CLASS
44
79
57
89
90
65
56
67
52
10
38
89
83
53
42
51
12
10
20
80
70
53
46
50
12
10
28
97
100
78
21
14
49
84
40
93
70
54
47
79
88
92
92
92
92
77
88
77
79
88
92
92
83
83
88
61
73
88
92
88
83
79
83
92
88
92
92
73
83
88
79
73
77
88
88
92
69
92
67
72
80
75
72
65
63
70
1
70
91
83
83
83
83
88
52
63
72
86
72
70
63
72
-2
52
64
46
70
73
26
59
45
72
71
78
74
24
60
8
64
73
90
95
74
68
66
54
42
45
96
69
65
56
44
0
0
0
91
21
15
0
0
13
4
0
93
29
2
2
0
40
56
57
82
73
47
53
71
50
73
84
79
70
56
54
73
76
77
87
62
73
66
72
100
22
57
75
57
75
81
87
100
64
45
78
72
68
70
7
66
58
72
88
75
43
55
99
99
98
99
99
99
99
98
87
96
97
99
99
97
96
97
98
96
95
97
97
91
93
96
99
95
100
77
87
84
74
92
96
93
92
90
88
94
93
60
75
77
88
88
76
68
73
57
58
70
91
81
74
69
72
50
41
53
86
67
64
59
64
50
49
53
82
73
66
46
40
60
73
68
87
78
54
65
III
III
II
II
II
II
III
III
III
III
III
II
II
III
III
III
IV
IV
III
II
III
III
III
III
IV
IV
III
II
III
III
IV
IV
III
III
III
II
II
III
III
WQ
STATUS
P
SP
SP
C
C
SP
SP
SP
P
P
SP
C
C
SP
SP
SP
P
P
P
C
SP
SP
P
SP
P
P
P
C
SP
SP
P
P
P
SP
SP
C
SP
P
SP
126
54
15
73
54
85
74
69
51
70
15
21
39
90
78
75
53
66
95
80
67
0
21
14
34
42
37
76
48
88
77
77
52
60
18
0
36
96
53
70
25
58
30
2
22
92
83
83
88
92
61
92
52
58
88
79
79
79
96
88
77
83
83
96
96
88
58
96
96
96
96
96
83
96
96
92
88
92
92
92
92
92
92
96
88
83
88
79
79
88
92
62
-12
72
53
63
59
46
52
45
16
40
70
79
73
63
61
61
90
82
73
20
80
86
88
80
66
71
83
82
52
69
75
73
63
49
86
90
69
45
45
78
28
86
91
94
49
34
54
56
100
89
54
53
47
28
35
52
100
96
49
51
45
99
88
40
1
22
29
37
25
45
62
63
86
94
55
54
55
35
2
29
83
59
28
17
8
9
7
28
78
55
100
76
72
89
74
59
57
53
79
53
73
93
83
71
61
57
92
82
81
68
82
66
70
64
56
48
59
89
87
73
57
56
51
68
82
93
85
87
23
62
69
84
83
92
94
97
97
96
94
92
95
95
97
99
96
96
94
92
96
96
96
96
94
97
98
97
97
98
98
93
92
89
90
98
91
90
90
97
100
99
99
98
99
99
99
99
100
97
100
65
50
76
69
81
79
61
59
66
50
51
66
92
84
71
66
68
95
87
73
37
64
62
68
66
64
72
72
89
82
75
69
70
57
48
69
92
75
69
47
65
50
56
65
91
III
IV
II
III
II
II
III
III
III
IV
IV
III
I
II
III
III
III
I
II
III
IV
III
III
III
III
III
III
III
II
II
III
III
III
III
IV
III
I
III
III
IV
III
IV
III
III
II
SP
P
SP
SP
C
SP
SP
P
SP
P
P
SP
C
C
SP
SP
SP
C
C
SP
P
SP
SP
SP
SP
SP
SP
SP
C
C
SP
SP
SP
P
P
SP
C
SP
SP
P
SP
P
P
SP
C
127
43
55
27
56
47
42
25
96
65
34
21
44
52
96
83
77
88
77
83
92
92
96
83
83
88
85
94
82
44
50
47
70
75
66
75
65
43
56
58
91
27
17
8
13
12
21
80
65
3
0
2
33
82
80
11
58
81
53
82
93
92
88
66
52
57
93
97
97
98
92
92
99
95
85
91
94
93
99
81
70
44
59
59
58
63
87
79
59
49
55
63
II
III
IV
III
III
III
III
II
II
III
IV
III
III
SP
SP
P
P
P
P
SP
C
SP
P
P
P
SP
128
HARKINS
DO mg/l
R1
BOD
R2
pH
pHt (su)
R3
PO4
R4
Sn
29
72
51
86
88
63
57
64
30
6
27
87
80
47
34
43
5
4
14
79
61
46
36
42
9
7
22
91
89
73
15
8
37
82
37
95
71
58
44
73
38
14
14
14
14
82
38
82
73
38
14
14
58
58
38
92
88
38
14
38
58
73
58
14
38
14
14
88
58
38
73
88
82
38
38
14
91
14
0.2
0.0
1.7
0.6
0.6
1.4
0.6
1.5
1.2
0.6
0.4
0.1
0.0
0.4
0.6
0.5
0.4
3.2
3.3
0.4
2.7
5.1
4.4
3.0
0.2
0.6
0.0
1.7
1.3
1.4
1.8
0.9
2.8
4.3
4.5
5.2
6.0
3.8
4.3
11
3
38
23
19
35
23
37
33
20
14
6
1
14
20
18
13
62
67
17
54
89
79
60
10
22
4
40
34
36
42
29
57
77
82
90
95
71
78
94
77
91
86
60
73
73
79
57
50
32
1
32
50
1
32
32
57
50
32
70
50
60
32
96
95
89
80
90
91
93
86
1
1
32
1
50
50
32
4.46
6.12
9.03
10.65
7.36
1.89
4.36
2.52
3.32
6.62
20.21
13.06
3.25
11.69
6.92
6.23
6.28
8.49
12.84
6.09
11.11
7.59
8.65
5.06
2.38
4.69
10.89
5.69
3.64
3.10
1.08
14.39
20.70
13.25
26.66
18.54
8.73
15.68
129
59
11
70
55
84
77
69
49
67
10
18
35
92
81
75
56
67
96
83
65
1
19
12
30
40
28
76
45
85
78
74
48
60
13
2
25
94
52
66
21
49
23
3
17
90
58
58
38
14
92
14
96
94
38
73
73
73
1
38
82
58
58
1
1
38
94
1
1
1
1
1
58
1
1
14
38
14
14
14
14
14
14
1
38
58
38
73
73
38
14
3.8
2.3
2.6
3.2
3.9
4.5
3.6
3.5
2.5
1.0
3.1
3.2
3.8
4.5
3.2
3.2
2.9
3.0
3.9
2.7
1.7
2.4
2.3
2.1
1.9
4.4
4.5
5.5
5.3
2.1
5.0
5.3
5.3
0.4
0.2
0.9
1.0
1.8
0.9
1.2
0.1
0.0
0.3
2.5
0.2
72
47
53
64
75
84
69
68
50
31
61
62
72
84
64
64
58
59
74
54
38
49
47
46
44
79
82
94
93
45
88
91
91
16
8
26
30
43
27
32
5
1
12
52
8
32
1
32
32
1
60
50
32
32
1
32
60
60
60
73
80
70
1
1
1
70
1
1
32
32
1
1
1
1
1
1
1
1
32
1
60
32
57
84
83
80
1
1
1
1
11.32
13.67
11.09
14.08
21.01
15.98
9.67
10.33
10.46
12.25
8.42
4.94
18.27
13.56
7.09
5.16
5.80
26.86
26.98
16.95
3.29
20.02
20.08
13.35
13.33
24.04
21.00
27.32
30.85
20.43
23.22
24.60
25.38
9.90
16.76
6.35
15.51
10.56
3.84
1.11
2.42
11.44
12.14
15.23
20.65
130
40
53
24
54
39
33
20
93
62
26
16
32
767.92
1
58
82
38
82
58
14
14
1
58
58
38
767.92
4.4
2.7
2.5
1.8
4.6
0.9
0.2
3.7
6.7
4.9
0.8
4.1
81
54
50
41
86
28
7
70
96
87
25
76
767.92
1
69
60
77
1
1
1
1
73
84
88
60
767.92
24.55
4.26
3.62
3.96
18.82
11.95
15.92
25.66
18.15
7.96
0.82
8.61
131
TABLE B7 : KLANG 1998 (EXAMPLE OF RAW DATA AND CALCULATED
DATA FOR SUNGAI KLANG)
STATE
BASIN
WPKL
WPKL
WPKL
WPKL
WPKL
WPKL
SELANGOR
WPKL
WPKL
WPKL
WPKL
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
WPKL
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
SELANGOR
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
WPKL
WPKL
WPKL
WPKL
WPKL
WPKL
WKA STA No.
No.
18
1K06
18
1K15
18
1K07
18
1K08
18
1K09
18
1K10
18
1K14
18
1K15
18
1K16
18
1K17
18
1K18
18
1K19
18
1K20
18
1K23
18
1K11
18
1K12
18
1K13
18
1K14
18
1K21
18
1K22
18
1K01
18
1K02
18
1K03
18
1K04
18
1K05
18
1K14
18
1K15
18
1K01
18
1K02
18
1K03
18
1K04
18
1K05
18
1K06
18
1K07
18
1K15
18
1K16
18
1K08
18
1K09
18
1K10
SNO
SUNGAI
SMP-DAT
TIME
3016607
3016623
3116630
3117610
3117605
3217628
3016624
3016623
3016625
3116626
3217619
3116604
3217627
3117629
3015637
3015632
3115638
3016624
3116620
3216621
3013601
3014602
3014603
3015622
3016631
3016624
3016623
3013601
3014602
3014603
3015622
3016631
3016607
3116630
3016623
3016625
3117610
3117605
3217628
KLANG
KUYOH
KLANG
KLANG
KLANG
KLANG
PENCALA
KUYOH
KERAYONG
GOMBAK
GOMBAK
BATU
BATU
AMPANG
DAMANSARA
DAMANSARA
DAMANSARA
PENCALA
KEROH
JINJANG
KLANG
KLANG
KLANG
KLANG
KLANG
PENCALA
KUYOH
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KUYOH
KERAYONG
KLANG
KLANG
KLANG
4-Jan-98
4-Jan-98
6-Jan-98
6-Jan-98
6-Jan-98
6-Jan-98
6-Jan-98
6-Jan-98
6-Jan-98
6-Jan-98
6-Jan-98
6-Jan-98
6-Jan-98
6-Jan-98
7-Jan-98
7-Jan-98
7-Jan-98
7-Jan-98
7-Jan-98
7-Jan-98
21-Jan-98
21-Jan-98
21-Jan-98
21-Jan-98
21-Jan-98
18-Feb-98
18-Feb-98
22-Feb-98
22-Feb-98
22-Feb-98
22-Feb-98
22-Feb-98
22-Feb-98
22-Feb-98
22-Feb-98
22-Feb-98
23-Feb-98
23-Feb-98
23-Feb-98
1210
1110
1010
1111
1154
1356
1412
1325
0921
1605
1526
1632
1440
1235
1623
1644
1717
1553
1437
1508
1210
1407
1444
1552
1643
1618
1540
1003
1050
1128
1216
1344
1451
1546
1421
1516
1404
1442
1540
132
SELANGOR
WPKL
WPKL
WPKL
SELANGOR
WPKL
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
WPKL
WPKL
WPKL
WPKL
SELANGOR
WPKL
WPKL
SELANGOR
WPKL
WPKL
WPKL
SELANGOR
WPKL
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
SELANGOR
SELANGOR
SELANGOR
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
1K14
1K17
1K18
1K19
1K20
1K21
1K22
1K23
1K11
1K12
1K13
1K14
1K15
1K01
1K02
1K03
1K04
1K11
1K12
1K13
1K05
1K06
1K07
1K08
1K15
1K16
1K23
1K09
1K10
1K14
1K17
1K18
1K19
1K20
1K21
1K22
1K01
1K02
1K03
1K04
1K05
1K06
1K11
1K12
1K13
3016624
3116626
3217619
3116604
3217627
3116620
3216621
3117629
3015637
3015632
3115638
3016624
3016623
3013601
3014602
3014603
3015622
3015637
3015632
3115638
3016631
3016607
3116630
3117610
3016623
3016625
3117629
3117605
3217628
3016624
3116626
3217619
3116604
3217627
3116620
3216621
3013601
3014602
3014603
3015622
3016631
3016607
3015637
3015632
3115638
PENCALA
GOMBAK
GOMBAK
BATU
BATU
KEROH
JINJANG
AMPANG
DAMANSARA
DAMANSARA
DAMANSARA
PENCALA
KUYOH
KLANG
KLANG
KLANG
KLANG
DAMANSARA
DAMANSARA
DAMANSARA
KLANG
KLANG
KLANG
KLANG
KUYOH
KERAYONG
AMPANG
KLANG
KLANG
PENCALA
GOMBAK
GOMBAK
BATU
BATU
KEROH
JINJANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
DAMANSARA
DAMANSARA
DAMANSARA
23-Feb-98
23-Feb-98
23-Feb-98
23-Feb-98
23-Feb-98
23-Feb-98
23-Feb-98
23-Feb-98
24-Feb-98
24-Feb-98
24-Feb-98
8-Mar-98
8-Mar-98
18-Mar-98
18-Mar-98
18-Mar-98
18-Mar-98
18-Mar-98
18-Mar-98
18-Mar-98
19-Mar-98
19-Mar-98
19-Mar-98
19-Mar-98
19-Mar-98
19-Mar-98
19-Mar-98
23-Mar-98
23-Mar-98
23-Mar-98
23-Mar-98
23-Mar-98
23-Mar-98
23-Mar-98
23-Mar-98
23-Mar-98
21-Apr-98
21-Apr-98
21-Apr-98
21-Apr-98
21-Apr-98
21-Apr-98
21-Apr-98
21-Apr-98
21-Apr-98
2028
1813
1744
1834
1711
1904
1932
1511
0952
1018
1107
1252
1140
1140
1229
1306
1708
1516
1542
1613
0953
1101
1237
1310
1031
1150
1426
1012
1050
1720
1302
1226
1449
1136
1529
1602
1016
1110
1145
1244
1438
1600
1737
1804
1840
133
SELANGOR
WPKL
WPKL
WPKL
WPKL
WPKL
WPKL
WPKL
SELANGOR
SELANGOR
WPKL
WPKL
WPKL
WPKL
SELANGOR
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
WPKL
WPKL
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
WPKL
SELANGOR
WPKL
WPKL
WPKL
SELANGOR
WPKL
WPKL
SELANGOR
SELANGOR
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
1K14
1K15
1K16
1K07
1K08
1K09
1K10
1K18
1K20
1K23
1K17
1K19
1K21
1K22
1K14
1K15
1K01
1K02
1K03
1K04
1K05
1K15
1K06
1K07
1K08
1K11
1K12
1K13
1K14
1K16
1K09
1K10
1K17
1K18
1K19
1K20
1K21
1K22
1K23
1K14
1K15
1K01
1K02
1K03
1K04
3016624
3016623
3016625
3116630
3117610
3117605
3217628
3217619
3217627
3117629
3116626
3116604
3116620
3216621
3016624
3016623
3013601
3014602
3014603
3015622
3016631
3016623
3016607
3116630
3117610
3015637
3015632
3115638
3016624
3016625
3117605
3217628
3116626
3217619
3116604
3217627
3116620
3216621
3117629
3016624
3016623
3013601
3014602
3014603
3015622
PENCALA
KUYOH
KERAYONG
KLANG
KLANG
KLANG
KLANG
GOMBAK
BATU
AMPANG
GOMBAK
BATU
KEROH
JINJANG
PENCALA
KUYOH
KLANG
KLANG
KLANG
KLANG
KLANG
KUYOH
KLANG
KLANG
KLANG
DAMANSARA
DAMANSARA
DAMANSARA
PENCALA
KERAYONG
KLANG
KLANG
GOMBAK
GOMBAK
BATU
BATU
KEROH
JINJANG
AMPANG
PENCALA
KUYOH
KLANG
KLANG
KLANG
KLANG
21-Apr-98
21-Apr-98
21-Apr-98
22-Apr-98
22-Apr-98
22-Apr-98
22-Apr-98
22-Apr-98
22-Apr-98
22-Apr-98
23-Apr-98
23-Apr-98
23-Apr-98
23-Apr-98
30-Apr-98
30-Apr-98
14-May-98
14-May-98
14-May-98
14-May-98
14-May-98
14-May-98
15-May-98
15-May-98
15-May-98
15-May-98
15-May-98
15-May-98
15-May-98
15-May-98
17-May-98
17-May-98
17-May-98
17-May-98
17-May-98
17-May-98
17-May-98
17-May-98
17-May-98
29-May-98
29-May-98
11-Jun-98
11-Jun-98
11-Jun-98
11-Jun-98
1704
1525
1630
1123
1219
1408
1526
1701
1620
1448
1019
1045
1117
1200
1336
1258
1010
1053
1124
1210
1332
1415
1127
1540
1614
1302
1322
1353
1227
1154
1424
1514
1649
1622
1707
1553
1733
1803
1447
1239
1150
1522
1606
1640
1730
134
SELANGOR
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
WPKL
WPKL
WPKL
WPKL
SELANGOR
SELANGOR
SELANGOR
WPKL
WPKL
WPKL
WPKL
WPKL
SELANGOR
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
WPKL
WPKL
SELANGOR
SELANGOR
WPKL
WPKL
SELANGOR
SELANGOR
WPKL
SELANGOR
WPKL
SELANGOR
SELANGOR
WPKL
WPKL
WPKL
WPKL
SELANGOR
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
1K05
1K06
1K11
1K12
1K13
1K14
1K15
1K16
1K07
1K08
1K09
1K10
1K20
1K23
1K17
1K18
1K19
1K21
1K22
1K14
1K15
1K01
1K02
1K03
1K04
1K05
1K15
1K06
1K07
1K11
1K14
1K16
1K08
1K12
1K13
1K09
1K10
1K18
1K20
1K23
1K17
1K19
1K21
1K22
1K14
3016631
3016607
3015637
3015632
3115638
3016624
3016623
3016625
3116630
3117610
3117605
3217628
3217627
3117629
3116626
3217619
3116604
3116620
3216621
3016624
3016623
3013601
3014602
3014603
3015622
3016631
3016623
3016607
3116630
3015637
3016624
3016625
3117610
3015632
3115638
3117605
3217628
3217619
3217627
3117629
3116626
3116604
3116620
3216621
3016624
KLANG
KLANG
DAMANSARA
DAMANSARA
DAMANSARA
PENCALA
KUYOH
KERAYONG
KLANG
KLANG
KLANG
KLANG
BATU
AMPANG
GOMBAK
GOMBAK
BATU
KEROH
JINJANG
PENCALA
KUYOH
KLANG
KLANG
KLANG
KLANG
KLANG
KUYOH
KLANG
KLANG
DAMANSARA
PENCALA
KERAYONG
KLANG
DAMANSARA
DAMANSARA
KLANG
KLANG
GOMBAK
BATU
AMPANG
GOMBAK
BATU
KEROH
JINJANG
PENCALA
12-Jun-98
12-Jun-98
12-Jun-98
12-Jun-98
12-Jun-98
12-Jun-98
12-Jun-98
12-Jun-98
15-Jun-98
15-Jun-98
15-Jun-98
15-Jun-98
15-Jun-98
15-Jun-98
16-Jun-98
16-Jun-98
16-Jun-98
16-Jun-98
16-Jun-98
3-Jul-98
3-Jul-98
12-Jul-98
12-Jul-98
12-Jul-98
12-Jul-98
12-Jul-98
12-Jul-98
16-Jul-98
16-Jul-98
16-Jul-98
16-Jul-98
16-Jul-98
17-Jul-98
17-Jul-98
17-Jul-98
21-Jul-98
21-Jul-98
21-Jul-98
21-Jul-98
21-Jul-98
22-Jul-98
22-Jul-98
22-Jul-98
22-Jul-98
3-Aug-98
1323
1439
1632
1657
1735
1554
1404
1517
1229
1307
1339
1435
1509
1411
1020
0954
1042
1114
1143
1253
1055
1215
1256
1332
1412
1541
1610
1046
1241
1552
1449
1158
1326
1158
1212
1120
1220
1357
1308
1147
1001
1021
1057
1131
1153
135
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
SELANGOR
SELANGOR
SELANGOR
WPKL
WPKL
WPKL
WPKL
WPKL
SELANGOR
SELANGOR
SELANGOR
WPKL
WPKL
WPKL
SELANGOR
WPKL
WPKL
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
WPKL
WPKL
WPKL
SELANGOR
SELANGOR
WPKL
WPKL
WPKL
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
1K15
1K01
1K02
1K03
1K04
1K05
1K06
1K11
1K12
1K14
1K15
1K16
1K07
1K08
1K09
1K10
1K13
1K23
1K17
1K18
1K19
1K20
1K21
1K22
1K15
1K01
1K02
1K03
1K04
1K05
1K15
1K06
1K11
1K12
1K13
1K14
1K16
1K07
1K08
1K09
1K10
1K23
1K17
1K18
1K19
3016623
3013601
3014602
3014603
3015622
3016631
3016607
3015637
3015632
3016624
3016623
3016625
3116630
3117610
3117605
3217628
3115638
3117629
3116626
3217619
3116604
3217627
3116620
3216621
3016623
3013601
3014602
3014603
3015622
3016631
3016623
3016607
3015637
3015632
3115638
3016624
3016625
3116630
3117610
3117605
3217628
3117629
3116626
3217619
3116604
KUYOH
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
DAMANSARA
DAMANSARA
PENCALA
KUYOH
KERAYONG
KLANG
KLANG
KLANG
KLANG
DAMANSARA
AMPANG
GOMBAK
GOMBAK
BATU
BATU
KEROH
JINJANG
KUYOH
KLANG
KLANG
KLANG
KLANG
KLANG
KUYOH
KLANG
DAMANSARA
DAMANSARA
DAMANSARA
PENCALA
KERAYONG
KLANG
KLANG
KLANG
KLANG
AMPANG
GOMBAK
GOMBAK
BATU
3-Aug-98
14-Aug-98
14-Aug-98
14-Aug-98
14-Aug-98
14-Aug-98
14-Aug-98
14-Aug-98
14-Aug-98
14-Aug-98
14-Aug-98
14-Aug-98
17-Aug-98
17-Aug-98
17-Aug-98
17-Aug-98
17-Aug-98
17-Aug-98
18-Aug-98
18-Aug-98
18-Aug-98
18-Aug-98
18-Aug-98
18-Aug-98
28-Aug-98
8-Sep-98
8-Sep-98
8-Sep-98
8-Sep-98
8-Sep-98
8-Sep-98
9-Sep-98
9-Sep-98
9-Sep-98
9-Sep-98
9-Sep-98
9-Sep-98
10-Sep-98
10-Sep-98
10-Sep-98
10-Sep-98
10-Sep-98
11-Sep-98
11-Sep-98
11-Sep-98
1044
0908
0958
1030
1115
1153
1309
1433
1455
1406
1233
1336
1320
1433
1509
1607
1154
1539
1406
1641
1426
1612
1455
1528
1215
1007
1053
1122
1211
1402
1440
1220
1348
1411
1441
1317
1247
927
1000
1034
1129
1057
1035
958
1053
136
SELANGOR
WPKL
WPKL
SELANGOR
SELANGOR
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
SELANGOR
WPKL
WPKL
WPKL
WPKL
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
WPKL
WPKL
SELANGOR
WPKL
WPKL
SELANGOR
SELANGOR
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
WPKL
WPKL
WPKL
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
1K20
1K21
1K22
1K14
1K14
1K15
1K01
1K02
1K03
1K04
1K05
1K06
1K14
1K15
1K16
1K07
1K08
1K09
1K10
1K11
1K12
1K13
1K17
1K18
1K19
1K20
1K21
1K22
1K23
1K14
1K15
1K01
1K02
1K03
1K04
1K05
1K06
1K11
1K12
1K13
1K14
1K15
1K16
1K07
1K08
3217627
3116620
3216621
3016624
3016624
3016623
3013601
3014602
3014603
3015622
3016631
3016607
3016624
3016623
3016625
3116630
3117610
3117605
3217628
3015637
3015632
3115638
3116626
3217619
3116604
3217627
3116620
3216621
3117629
3016624
3016623
3013601
3014602
3014603
3015622
3016631
3016607
3015637
3015632
3115638
3016624
3016623
3016625
3116630
3117610
BATU
KEROH
JINJANG
PENCALA
PENCALA
KUYOH
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
PENCALA
KUYOH
KERAYONG
KLANG
KLANG
KLANG
KLANG
DAMANSARA
DAMANSARA
DAMANSARA
GOMBAK
GOMBAK
BATU
BATU
KEROH
JINJANG
AMPANG
PENCALA
KUYOH
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
DAMANSARA
DAMANSARA
DAMANSARA
PENCALA
KUYOH
KERAYONG
KLANG
KLANG
11-Sep-98
11-Sep-98
11-Sep-98
28-Sep-98
2-Oct-98
2-Oct-98
8-Oct-98
8-Oct-98
8-Oct-98
8-Oct-98
8-Oct-98
8-Oct-98
8-Oct-98
8-Oct-98
8-Oct-98
9-Oct-98
9-Oct-98
9-Oct-98
9-Oct-98
9-Oct-98
9-Oct-98
9-Oct-98
9-Oct-98
9-Oct-98
9-Oct-98
9-Oct-98
9-Oct-98
9-Oct-98
9-Oct-98
2-Nov-98
2-Nov-98
17-Nov-98
17-Nov-98
17-Nov-98
17-Nov-98
17-Nov-98
17-Nov-98
17-Nov-98
17-Nov-98
17-Nov-98
17-Nov-98
17-Nov-98
17-Nov-98
18-Nov-98
18-Nov-98
928
1126
1155
1255
1226
1117
1124
1206
1238
1323
1436
1541
1641
1514
1610
1216
1247
1330
1504
1032
1100
1132
1654
1627
1711
1556
1739
1810
1434
1143
1107
1018
1057
1133
1215
1327
1433
1558
1636
1710
1525
1408
1455
1046
1126
137
WPKL
SELANGOR
WPKL
WPKL
WPKL
SELANGOR
WPKL
WPKL
SELANGOR
SELANGOR
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
SELANGOR
SELANGOR
SELANGOR
SELANGOR
WPKL
WPKL
WPKL
WPKL
WPKL
SELANGOR
WPKL
WPKL
WPKL
SELANGOR
WPKL
WPKL
SELANGOR
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
1K09
1K10
1K17
1K18
1K19
1K20
1K21
1K22
1K23
1K14
1K15
1K01
1K02
1K03
1K04
1K05
1K06
1K11
1K12
1K13
1K14
1K15
1K16
1K07
1K08
1K09
1K10
1K17
1K18
1K19
1K20
1K21
1K22
1K23
3117605
3217628
3116626
3217619
3116604
3217627
3116620
3216621
3117629
3016624
3016623
3013601
3014602
3014603
3015622
3016631
3016607
3015637
3015632
3115638
3016624
3016623
3016625
3116630
3117610
3117605
3217628
3116626
3217619
3116604
3217627
3116620
3216621
3117629
KLANG
KLANG
GOMBAK
GOMBAK
BATU
BATU
KEROH
JINJANG
AMPANG
PENCALA
KUYOH
KLANG
KLANG
KLANG
KLANG
KLANG
KLANG
DAMANSARA
DAMANSARA
DAMANSARA
PENCALA
KUYOH
KERAYONG
KLANG
KLANG
KLANG
KLANG
GOMBAK
GOMBAK
BATU
BATU
KEROH
JINJANG
AMPANG
18-Nov-98
18-Nov-98
18-Nov-98
18-Nov-98
18-Nov-98
18-Nov-98
18-Nov-98
18-Nov-98
18-Nov-98
30-Nov-98
30-Nov-98
14-Dec-98
14-Dec-98
14-Dec-98
14-Dec-98
15-Dec-98
15-Dec-98
15-Dec-98
15-Dec-98
15-Dec-98
15-Dec-98
15-Dec-98
15-Dec-98
16-Dec-98
16-Dec-98
16-Dec-98
16-Dec-98
16-Dec-98
16-Dec-98
16-Dec-98
16-Dec-98
16-Dec-98
16-Dec-98
16-Dec-98
1305
1438
1635
1604
1650
1523
1721
1754
1410
1340
1241
1203
1255
1333
1415
1058
1210
1339
1406
1440
1308
1138
1240
0943
1019
1051
1149
1342
1314
1402
1241
1429
1506
1120
138
Water
Weather
Low
Normal
Normal
Normal
Normal
Low
Low
Normal
Low
Normal
Normal
Low
Low
V. Low
Normal
Normal
Normal
Normal
V. Low
Low
High
Low
Normal
High
High
Normal
Normal
Low
Low
Low
Low
Low
Normal
Normal
Normal
Normal
Normal
Low
Low
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Cloudy
Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
DO %
Sat
25
26
9
8
26
52
17
12
32
42
67
34
19
36
54
33
51
5
31
22
9
0
0
0
4
11
10
0
0
0
11
8
41
24
37
62
26
34
65
DO
mg/l
1.86
1.91
0.68
0.61
1.96
3.80
1.23
0.88
2.48
3.02
4.62
2.37
1.33
2.58
3.63
2.22
3.64
0.36
2.03
1.52
0.60
0.03
0.03
0.01
0.29
0.81
0.65
0.00
0.05
0.00
0.78
0.57
2.98
1.64
2.64
4.18
1.86
2.37
4.66
BOD
mg/l
13.2
2.0
2.0
11.6
25.6
3.5
26.3
3.6
2.0
2.0
2.0
9.3
27.4
21.7
12.6
11.2
5.2
3.9
32.0
9.9
4.3
10.6
11.7
15.1
13.9
70.6
6.7
5.6
7.7
5.9
8.9
2.0
6.8
7.2
3.3
2.0
11.6
25.6
3.5
COD
mg/l
40
21
45
44
51
16
77
19
50
34
24
43
130
50
20
27
22
6
50
43
589
33
29
37
24
134
22
61
18
13
28
24
17
49
8
38
44
51
16
SS
mg/l
28
23
32
81
31
5
88
44
27
4
12
14
91
22
111
312
109
11
19
6
15
54
115
163
34
68
10
51
167
137
242
248
58
79
88
30
81
31
5
pH Unit NH3-NL
mg/l
7.02
1.08
7.00
3.49
7.00
0.24
7.47
0.30
7.00
0.64
6.13
0.12
10.88
1.93
7.08
2.27
7.23
0.31
6.89
1.40
6.72
0.07
7.16
2.38
6.65
3.48
7.11
3.76
6.77
3.45
6.71
4.26
6.25
1.65
5.80
2.81
7.01
7.96
7.00
6.84
7.21
3.25
6.85
6.70
6.91
5.69
6.90
6.49
6.59
5.06
6.65
6.28
7.45
1.58
6.94
2.76
6.72
2.50
6.66
1.72
6.64
3.33
6.49
2.93
7.04
6.43
7.00
7.30
6.83
3.23
7.48
14.16
7.02
0.30
6.91
0.64
6.14
0.12
PO4
mg/l
1.11
0.01
1.14
1.14
0.96
0.01
0.01
0.01
1.44
1.16
0.83
1.16
0.01
1.47
0.01
0.01
0.01
0.01
2.94
1.47
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.92
1.04
0.01
0.96
1.14
0.96
0.01
139
Normal
Normal
Normal
Normal
Low
Low
Normal
Low
Normal
Normal
Normal
Low
Low
Normal
Normal
Normal
Normal
Normal
Normal
Low
Normal
Normal
Normal
Normal
Normal
Low
Low
Normal
Low
Normal
Normal
Normal
Low
Normal
Low
Low
High
Normal
Normal
Low
Normal
Normal
Normal
Low
Low
Cloudy
Clear
Clear
Clear
Clear
Clear
Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Cool
Rainy
Cloudy
Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Cloudy
26
36
49
22
12
13
29
3
38
32
34
19
24
27
0
0
5
49
36
36
0
23
4
12
16
27
12
31
49
2
47
4
31
38
3
0
9
0
0
0
16
36
50
33
17
1.87
2.49
3.31
1.57
0.83
1.00
1.96
0.24
2.89
2.42
2.53
1.24
1.69
1.84
0.00
0.00
0.33
3.23
2.51
2.48
0.00
1.71
0.29
0.86
1.15
1.91
0.78
2.37
3.89
0.13
3.41
3.86
2.10
2.83
0.21
0.02
0.7
0.0
0.0
0.0
1.1
2.5
3.3
2.2
1.1
27.8
2.0
2.0
9.3
27.4
32.0
9.9
21.7
6.3
6.6
2.0
2.0
9.1
6.4
9.8
3.2
7.7
2.0
8.5
8.5
9.1
8.8
20.4
32.6
3.1
14.8
23.8
4.4
2.0
32.3
5.1
9.0
7.5
6.9
2.0
47.5
8.9
6.8
4.3
6.9
4.4
10.7
2.0
2.0
8.2
51
34
24
43
130
50
43
50
18
17
19
91
19
105
18
30
41
29
26
19
30
32
54
102
17
53
54
36
16
75
28
33
40
26
66
102
66
16
19
21
5
34
7
10
19
168
<4
12
14
91
19
6
22
114
46
32
89
82
161
240
210
191
412
242
72
44
31
188
678
52
23
28
119
16
64
70
114
28
68
44
49
27
68
6
144
62
48
404
26
23
10.37
6.83
6.46
6.92
6.66
6.97
6.73
7.13
6.84
6.69
6.36
5.31
6.85
7.61
6.50
6.76
6.87
6.65
6.72
6.40
6.53
6.94
6.94
7.14
6.79
7.14
7.01
7.14
6.32
7.27
6.92
6.62
7.08
6.72
6.80
6.78
7.21
6.80
6.43
6.74
6.85
7.02
6.78
6.66
6.32
3.45
1.40
0.07
2.38
3.48
7.96
6.84
3.76
3.63
3.52
2.80
3.95
6.91
1.65
3.56
4.98
5.17
4.01
5.06
2.68
3.63
10.54
8.17
8.56
3.38
19.51
12.10
3.65
1.40
0.42
5.43
4.95
9.22
4.13
10.04
9.80
3.73
8.17
7.34
6.85
7.38
11.36
4.63
5.77
1.47
0.01
1.16
0.83
1.16
0.01
2.94
1.47
1.47
0.01
0.01
0.83
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.66
0.01
0.88
0.86
0.01
0.01
0.88
2.32
0.82
0.59
3.64
1.09
0.70
1.22
0.86
2.09
1.75
0.01
0.01
0.01
0.01
0.01
0.66
0.01
0.01
0.60
140
Normal
Normal
Low
Normal
Normal
Low
Low
Low
Low
Low
Low
Low
Low
Low
Normal
Normal
High
High
High
High
High
High
Normal
High
High
Normal
Normal
Normal
Normal
Low
Low
Low
Normal
Low
Normal
Low
Low
Low
Low
Normal
Normal
High
High
High
Normal
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Cloudy
Cloudy
Cloudy
Clear
Clear
Cloudy
Clear
Cloudy
Cloudy
Clear
Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
3
45
51
31
38
60
70
52
31
62
48
23
40
24
5
25
4
0
0
9
8
11
47
30
39
45
46
34
4
61
35
58
41
52
20
19
28
4
32
2
46
2
0
0
0
0.2
3.2
3.3
2.4
2.8
4.2
5.1
3.6
2.1
4.2
3.7
1.7
3.0
1.7
0.3
1.8
0.3
0.0
0.0
0.7
0.6
0.8
3.6
2.2
3.0
3.3
3.3
2.5
0.3
5.5
2.5
4.3
2.9
3.6
1.4
1.3
1.9
0.3
2.3
0.1
3.3
0.2
0.0
0.0
0.0
35.4
2.0
13.8
8.3
11.9
9.8
2.3
5.6
3.8
8.3
7.8
3.4
5.7
28.7
43.2
4.8
2.0
2.0
4.0
2.0
9.0
3.0
12.0
30.0
14.0
10.0
8.0
2.0
23.0
12.0
7.0
2.0
7.0
3.0
4.0
5.0
9.0
6.0
7.0
42.0
5.0
6.0
7.0
9.0
12.0
60
9
44
40
45
46
10
21
36
29
22
49
30
91
87
23
275
74
95
77
64
54
97
94
553
111
125
84
198
106
60
37
65
69
71
57
107
80
77
219
50
10
87
67
130
180
39
26
48
172
28
<4
86
13
121
215
52
17
28
61
49
102
118
292
210
86
74
60
82
1710
242
698
48
62
32
80
4
24
150
50
40
198
38
38
96
22
116
192
98
334
5.53
6.68
7.24
6.88
7.27
6.68
6.13
6.58
6.71
7.13
6.73
6.86
6.95
6.73
5.29
6.65
6.87
6.60
6.46
6.47
6.36
6.50
6.96
6.91
7.70
6.42
6.51
6.09
2.91
7.24
6.86
6.20
6.78
6.42
6.87
6.53
6.78
6.73
6.99
6.85
6.91
7.25
6.87
6.86
6.91
5.01
3.84
27.99
1.65
3.55
3.29
0.14
1.65
1.98
6.60
5.41
7.36
7.99
11.77
7.47
3.42
2.11
3.36
2.10
2.51
3.32
1.33
5.62
4.91
2.48
2.40
2.81
1.97
4.81
15.20
4.90
0.58
4.42
3.02
5.06
3.10
4.56
7.50
5.94
5.20
4.77
3.83
7.08
7.16
7.60
0.01
0.01
0.66
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.64
0.63
0.73
1.30
0.01
0.01
0.01
0.04
0.02
0.02
0.04
0.01
0.23
0.25
0.02
0.01
0.01
0.07
0.01
0.28
0.32
0.01
0.51
0.27
0.35
0.28
0.23
0.36
0.71
0.40
0.17
0.41
0.23
0.27
0.53
141
Normal
Normal
Normal
Normal
Low
Normal
Normal
Low
Normal
Normal
Low
Low
Low
Low
Normal
Normal
Normal
Low
Low
Normal
Low
Low
Normal
Normal
Normal
Normal
Normal
Low
Normal
Normal
Low
Low
Low
Normal
Normal
Low
Low
Low
Low
Low
Normal
Normal
Low
Low
Low
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Cloudy
Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Cloudy
Clear
Clear
Cloudy
Clear
Clear
Clear
Cloudy
Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Cloudy
13
28
83
73
7
2
14
36
14
11
41
60
34
49
76
71
28
37
2
0
28
0
0
0
7.1
33.4
26.2
26.6
8.8
58.2
0
40.6
5
58.4
30.1
27.6
53.1
56.8
39.3
38.6
48.6
16.4
33.2
19.2
6.1
0.9
2.0
5.5
4.8
0.5
0.1
1.0
2.4
1.0
0.9
3.1
4.6
2.5
3.6
6.0
5.7
2.1
2.8
0.1
0.0
2.0
0
0
0
0.52
2.31
1.87
2.02
0.67
4.1
0
2.95
0.37
4.38
2.27
2.1
4.08
4.15
2.86
2.93
3.78
1.25
2.53
1.42
0.44
11.0
14.0
13.0
9.0
14.0
49.0
6.0
26.0
23.0
22.0
15.0
7.0
14.0
20.0
12.0
18.0
13.0
13.0
12.0
69.0
9.0
3.0
8.0
13.0
10.0
10.0
7.0
15.0
30.0
7.0
65.0
22.0
22.0
7.0
12.0
12.0
5.0
6.0
8.0
12.0
6.0
5.0
6.0
21.0
30.0
64
65
69
54
54
133
41
137
67
133
47
22
49
73
82
71
61
73
102
153
43
72
98
100
63
41
52
51
83
110
178
91
76
41
76
70
31
57
50
64
38
44
54
79
88
36
44
82
44
22
72
22
52
82
300
36
10
56
102
294
258
96
40
266
56
20
64
312
288
58
32
34
82
110
518
60
60
138
146
108
123
21
60
30
37
37
43
20
87
102
6.54
6.90
6.90
6.90
6.32
7.90
6.65
7.39
6.89
7.07
6.96
6.16
6.58
7.18
6.72
6.41
6.85
6.96
6.68
6.45
6.97
7.42
7.12
6.74
6.76
6.78
6.95
7.01
7.32
6.8
6.62
7.82
7.1
6.87
6.3
7.18
6.26
6.63
6.77
8.41
6.77
7.02
7.2
6.78
3.48
6.84
9.24
5.23
5.56
3.86
4.65
5.21
36.40
6.03
6.11
5.59
0.37
3.16
8.49
2.06
1.48
6.19
6.97
7.28
7.21
7.37
3.10
3.84
4.97
6.42
2.75
4.94
13.00
7.80
3.19
4.32
5.90
8.32
3.52
2.08
6.47
0.73
3.05
4.00
9.91
4.50
6.06
7.02
7.25
7.13
0.48
0.80
0.39
0.52
0.47
0.63
0.40
1.31
0.50
0.41
0.58
0.09
0.29
0.82
0.24
0.12
0.41
0.56
0.48
0.65
0.54
0.07
0.07
0.13
0.45
0.08
0.45
0.52
0.47
0.02
0.16
1.18
0.56
0.12
0.15
0.68
0.20
0.37
0.42
1.23
0.45
0.36
0.47
0.79
0.02
142
Low
Cloudy
High
Clear
High
Clear
High
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal Cloudy
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Low
Cloudy
Normal
Clear
Low
Clear
Normal Cloudy
Normal
Clear
Normal Cloudy
Normal Cloudy
Normal Cloudy
Normal Cloudy
Low
Clear
High
Cloudy
High
Cloudy
High
Clear
High
Clear
High
Clear
High Drizzling
Low
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Low
Clear
Low
Clear
Normal
Clear
Normal
Clear
Low
Clear
Normal
Clear
Low
Clear
Normal
Clear
High
Clear
Normal
Clear
6.6
28.7
0
0
0.6
0
45.6
68.2
68.3
18.7
2.7
59.4
40.4
22.6
36.1
71.5
48.2
39.8
57.9
58.2
3
17.1
1.4
11.5
4.1
31.9
0
0
7.8
21.7
53
58.1
65.4
65.7
68
11.6
55.6
61.3
53.6
61.2
81.2
65.2
75.8
74.4
50.2
0.51
2.04
0
0
0.03
0.01
3.44
5.02
4.94
1.34
0.21
4.33
3.09
1.66
2.59
5.45
3.65
2.73
4.48
4.56
0.23
1.3
0.1
0.87
0.31
2.16
0
0
0.59
1.66
4.12
4.5
4.84
4.84
5.07
0.83
4.17
4.88
4.27
4.85
6.58
5.14
6.13
6.1
3.88
8.0
2.0
6.0
6.0
5.0
17.0
13.0
6.0
7.0
10.0
6.0
15.0
9.0
10.0
12.0
2.0
5.0
14.0
16.0
11.0
18.0
10.0
19.0
8.0
6.0
6.0
4.0
10.0
6.0
10.0
5.0
10.0
5.0
5.0
6.0
26.0
14.0
8
13
10
2
13
6.0
4
6
46
83
18
18
26
24
63
21
26
115
21
56
55
50
46
26
23
42
50
52
87
34
95
35
9
44
64
61
36
54
18
35
32
20
26
51
22
26
37
44
13
37
17
18
21
16
8
212
146
62
138
82
136
272
372
68
46
90
102
76
18
74
38
176
772
478
450
920
20
76
1150
656
452
130
146
134
146
278
240
154
94
28
6
128
124
24
36
144
36
74
6.78
7.45
6.88
6.84
7.06
7.02
6.99
6.72
6.95
3.07
7.01
7.3
7.22
7.07
7.21
6.57
6.33
7.53
7.13
6.99
6.96
7
7.08
7.11
6.79
7.56
7.01
6.91
6.94
6.77
6.84
7.13
6.7
6.69
6.47
6.66
7.56
7.14
7.29
7.17
6.77
7.26
7.06
6.61
7.27
5.20
1.91
1.87
2.14
4.26
4.74
7.36
2.06
2.87
3.66
3.55
7.36
4.47
9.96
9.69
0.16
1.45
11.00
2.47
1.52
4.96
2.70
3.33
5.82
1.68
4.70
3.21
2.91
2.80
3.01
2.04
3.46
1.57
2.65
1.56
4.13
15.40
2.53
2.72
2.45
0.15
3.30
1.36
0.84
3.70
0.26
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.05
0.49
0.01
0.01
0.58
0.17
0.09
0.31
0.05
0.31
0.40
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.08
0.01
0.01
0.01
0.06
0.36
0.03
0.04
0.08
0.01
0.19
0.01
0.01
0.05
143
Normal
Low
Low
Low
Low
Low
Low
Low
Normal
Normal
Normal
Normal
Low
Low
Low
Normal
Normal
Normal
Low
Normal
Normal
Normal
Normal
Normal
Normal
Low
Low
Normal
Low
Normal
Normal
Low
Normal
Low
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Low
Normal
Normal
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
54.2
44.6
22.2
5.8
8.2
58.1
21.9
0.9
0.8
1
37
26.8
3.2
19.7
17.1
9.4
6.6
33.9
64.5
18.5
33.2
23.5
56.2
67.1
7.5
18.1
10.7
27.6
32.1
24.9
6.5
22.9
0.4
0
4.2
18.5
43.1
47.7
45.9
31.4
10
13.2
52.9
44.9
43.3
4.33
3.36
1.72
0.61
0.58
4.24
1.49
0.06
0.06
0.09
3.78
1.92
0.22
1.43
1.18
0.7
0.49
2.46
4.85
1.34
2.47
1.72
3.94
4.8
0.5
1.24
0.74
2.01
2.27
1.85
0.49
1.63
0.03
0
0.3
1.41
3.23
3.15
3.15
2.19
0.67
0.93
3.71
3.55
3.37
8
12
6
20.0
42.0
11.0
4.0
10.0
11.0
14.0
16.0
12.0
21.0
7.0
22.0
13.0
15.0
9.0
2.0
7.0
6.0
6.0
9.0
7.0
9.0
6.0
18.0
13.0
15.0
16.0
5.0
2
18
6
5
8
4
4
4
5
22
4
9
13
18
28
89
15
48
111
37
68
63
63
38
26
47
55
31
57
36
34
24
13
25
22
21
21
17
35
29
63
52
50
43
41
16
35
44
57
26
7
23
17
24
34
24
42
36
27
88
120
54
34
96
20
936
438
354
70
38
46
88
18
36
70
168
26
2
64
32
50
40
150
114
32
122
236
32
24
16
78
220
310
84
180
62
332
140
52
70
32
86
236
350
6.91
7.21
6.86
4.2
3.98
7.26
7.19
6.93
6.89
6.89
6.85
7.02
6.7
6.8
7.69
7.15
6.99
5.96
6.18
5.84
5.87
6.43
6.93
6.66
7.15
6.71
7.14
6.95
6.22
7.06
6.97
6.86
6.68
6.96
7.08
6.79
6.93
6.94
6.69
6.52
6.91
6.8
7.48
7.23
7.12
2.42
5.39
3.51
4.74
7.04
4.71
0.62
21.90
7.75
9.23
7.27
0.81
0.30
7.54
32.80
7.00
9.00
7.15
0.28
5.80
6.29
3.24
4.72
2.30
8.27
3.88
9.74
5.89
10.90
5.00
6.50
2.70
4.51
4.60
8.16
4.93
7.59
4.32
5.05
2.14
5.12
4.73
21.20
2.94
3.14
0.08
0.18
0.04
0.24
0.01
0.24
0.01
0.12
0.16
0.43
0.25
0.56
0.57
0.28
1.02
0.43
0.61
0.52
0.02
0.33
0.20
0.21
0.36
0.07
0.57
0.13
0.74
0.31
1.23
0.59
0.62
0.01
0.10
0.08
0.29
0.16
0.36
0.09
0.21
0.15
0.23
0.19
0.66
0.09
0.13
144
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Low
Clear
Low
Clear
Normal
Clear
Low
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Low
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Low
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Low
Clear
Normal
Clear
Normal
Clear
Normal
Clear
Low
Clear
Normal
Clear
Normal
Clear
Low
Clear
AVERAGE
58.9
80.7
69.8
74.5
30.1
56.4
24.9
28.6
62.8
7.3
66.9
9.1
0.0
0.4
9.8
0.3
36.5
52.7
52.6
33.6
4.8
26.0
21.2
22.1
16.8
34.3
44.9
61.5
56.7
41.7
35.1
21.9
35.7
46.5
28.7
4.38
6.06
5.1
5.51
2.14
3.96
1.72
2.11
4.57
0.52
4.96
0.66
0.00
0.03
0.74
0.03
2.82
3.89
3.90
2.44
0.35
1.97
1.65
1.72
1.31
2.67
3.55
4.73
4.37
3.01
2.62
1.57
2.63
3.60
2.12
13
3
10
10
14
10
21
18
18
18
9
2
5
4
4
15
8
4
3
10
35
6
14
15
14
12
12
9
12
12
11
14
11
16
12
22
6
16
21
18
21
34
21
24
32
24
23
39
34
41
29
25
21
19
23
62
24
41
23
41
35
15
18
29
44
29
51
36
31
52
142
6
160
232
58
100
98
21
94
36
30
28
74
66
106
40
52
152
42
44
42
18
30
44
112
76
10
222
486
34
42
40
30
48
122
7.19
6.13
7.09
6.78
7.3
6.81
7.24
7.24
7.26
7
7.61
6.8
6.67
6.83
6.81
6.61
6.71
6.92
6.76
6.28
7.07
6.86
7.34
7.13
7.23
7.1
6.34
6.95
6.93
7.1
6.79
7.1
7.18
7.19
6.83
3.24
0.13
2.12
1.31
4.84
2.23
7.20
4.72
4.17
5.99
4.93
3.9
4.09
4.19
5.02
5.23
10.3
3.56
4.06
2.08
8.26
5.01
25.9
5.4
4.98
4.51
0.52
3.08
2.45
7.7
2.9
9.36
8.17
6.93
5.12
0.23
0.01
0.16
0.04
0.27
0.11
0.50
0.24
0.42
0.22
0.26
0.03
0.04
0.06
0.13
0.1
0.51
0.14
0.11
0.05
0.99
0.11
0.98
0.48
0.39
0.45
0.04
0.27
0.22
0.49
0.28
0.72
0.44
0.6
0.36
145
DOE
DOSI
BOD SI
COD SI
AN SI
SS SI
pH SI
WQI
CLASS
16
16
2
2
17
53
7
3
24
38
74
27
9
29
55
24
51
0
22
11
2
0
0
0
0
3
2
0
0
0
3
1
37
14
30
67
16
26
71
51
92
92
56
24
86
23
85
92
92
92
64
21
31
53
57
81
84
15
62
82
59
56
46
49
-5
74
79
70
77
65
92
73
72
86
92
56
24
86
53
73
49
50
44
78
28
74
45
59
70
51
8
45
73
66
72
91
45
51
-24
60
64
56
70
7
72
37
75
82
65
70
76
46
88
55
50
44
78
46
5
75
69
58
88
31
24
70
39
93
22
5
2
6
0
35
15
0
0
8
0
0
0
0
0
36
16
20
34
7
13
0
0
9
0
69
58
88
82
85
80
60
81
95
58
75
83
95
91
89
57
85
58
38
58
91
87
94
89
70
57
52
79
65
92
72
52
55
45
44
69
61
58
81
60
81
95
99
99
99
97
99
93
25
99
99
99
99
99
98
99
99
98
94
88
99
99
99
99
99
99
98
98
97
100
99
98
98
97
99
99
99
97
99
99
93
54
59
62
51
49
80
27
56
66
68
85
56
29
45
56
45
64
58
41
49
40
44
42
38
45
23
58
47
48
53
43
50
57
46
60
66
54
51
84
III
III
III
IV
IV
II
V
III
III
III
II
III
V
IV
III
IV
III
III
IV
IV
IV
IV
IV
IV
IV
V
III
IV
IV
III
IV
IV
III
IV
III
III
III
IV
II
WQ
STATUS
P
P
SP
P
P
SP
P
P
SP
SP
C
P
P
P
P
P
SP
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
SP
P
P
C
146
16
29
48
12
4
4
20
0
32
24
27
9
14
18
0
0
0
47
29
28
0
13
0
4
6
17
3
23
48
0
45
0
22
32
0
0
2
0
0
0
6
29
49
25
7
21
92
92
64
21
15
62
31
76
75
92
92
65
75
62
87
70
92
67
67
65
66
33
15
87
46
27
82
92
15
81
65
71
73
92
3
65
74
82
73
82
59
92
92
68
44
59
70
51
8
45
51
45
75
76
74
21
74
16
75
63
52
64
67
74
63
61
42
17
76
43
42
57
78
29
65
60
53
67
34
17
34
78
74
73
92
59
90
86
74
6
39
93
22
5
0
0
2
4
5
15
0
0
35
4
0
0
0
0
17
4
0
0
0
7
0
0
3
39
66
0
0
0
0
0
0
2
0
0
0
0
0
0
0
38
52
100
91
89
57
87
94
85
57
74
80
58
60
52
45
48
49
31
45
64
75
81
50
14
71
85
82
57
88
66
64
57
82
65
75
72
83
65
94
54
67
73
31
83
85
34
99
97
99
98
100
99
99
99
98
96
67
99
96
97
99
99
98
99
96
97
100
100
99
99
99
99
99
95
98
99
98
99
99
99
99
99
99
96
99
99
99
99
98
95
28
67
79
52
28
37
51
39
55
56
62
40
49
46
43
46
41
55
49
55
47
50
33
20
54
45
38
51
72
40
58
43
52
54
47
27
44
49
54
46
54
51
60
62
57
V
III
II
III
V
IV
IV
IV
III
III
III
IV
IV
IV
IV
IV
IV
III
IV
III
IV
IV
IV
V
III
IV
IV
IV
III
IV
III
IV
III
III
IV
V
IV
IV
III
IV
III
IV
III
III
III
P
SP
SP
P
P
P
P
P
P
P
SP
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
SP
P
P
P
P
P
P
P
P
P
P
P
P
P
P
SP
P
147
0
43
51
23
32
65
79
53
22
68
47
13
35
14
0
16
0
0
0
2
2
3
46
21
34
42
43
26
0
66
28
62
37
52
10
9
19
0
23
0
44
0
0
0
0
12
92
49
68
55
62
91
79
84
68
70
86
78
19
6
80
92
92
83
92
65
88
55
18
49
61
69
92
28
55
73
92
73
88
83
79
65
77
73
7
79
77
73
65
55
38
87
50
53
49
48
86
73
57
64
72
46
63
21
23
71
-10
29
19
28
35
42
19
20
-22
14
9
24
-3
15
38
56
35
32
31
40
15
26
28
-5
45
86
23
33
8
0
1
0
35
5
8
86
35
30
0
0
0
0
0
0
6
28
7
28
20
7
41
0
0
20
22
15
30
0
0
0
60
0
12
0
10
0
0
0
0
0
1
0
0
0
51
77
83
73
51
82
100
59
90
57
47
71
88
82
68
72
59
57
40
48
59
63
68
60
0
45
13
73
67
80
61
95
84
54
72
76
49
77
77
56
85
57
49
55
37
82
98
98
99
98
98
93
98
98
99
99
99
100
99
67
98
99
98
97
97
96
97
100
99
95
96
97
92
10
98
99
94
99
96
99
97
99
99
100
99
99
98
99
99
99
26
65
54
55
46
60
88
65
61
59
54
50
59
35
24
54
41
44
41
45
40
52
46
33
28
45
40
54
17
52
48
75
53
55
47
49
38
43
48
21
57
50
37
38
29
V
III
III
III
IV
III
II
III
III
III
III
IV
III
IV
V
III
IV
IV
IV
IV
IV
III
IV
IV
V
IV
IV
III
V
III
IV
II
III
III
IV
IV
IV
IV
IV
V
III
IV
IV
IV
V
P
SP
P
P
P
P
C
SP
SP
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
SP
P
P
P
P
P
P
P
P
P
P
P
P
P
148
4
19
92
82
0
0
5
29
5
3
36
64
26
48
85
79
18
31
0
0
19
0
0
0
0
26
17
17
2
62
0
36
0
62
21
18
54
60
34
33
48
7
25
9
0
58
49
52
65
49
2
77
23
28
30
46
73
49
34
55
38
52
52
55
-4
65
88
69
52
61
61
73
46
18
73
-3
30
30
73
55
55
79
77
69
55
77
79
77
32
18
35
35
32
42
42
7
52
7
33
7
47
72
46
30
25
31
37
30
17
3
51
30
18
17
36
52
43
44
25
14
-1
21
28
52
28
32
62
40
45
35
55
50
42
27
22
0
0
0
0
1
0
0
0
0
0
0
68
10
0
29
38
0
0
0
0
0
10
1
0
0
16
0
0
0
9
0
0
0
5
28
0
56
11
0
0
0
0
0
0
0
78
75
60
75
85
64
85
71
60
39
78
92
70
59
40
43
56
76
42
70
86
66
38
40
69
80
79
60
58
23
68
68
55
54
58
56
86
68
81
78
78
75
86
58
59
97
99
99
99
95
92
98
98
99
99
100
93
98
99
99
96
99
100
98
96
100
97
99
99
99
99
100
99
98
99
98
93
99
99
95
99
94
98
99
84
99
99
99
99
18
42
43
57
61
41
23
49
35
33
26
49
75
47
43
56
54
41
45
32
22
50
45
34
31
40
53
49
41
29
47
22
39
31
57
44
40
70
58
53
46
58
48
53
34
19
IV
IV
III
III
IV
V
IV
IV
IV
V
IV
II
IV
IV
III
III
IV
IV
IV
V
IV
IV
IV
IV
IV
III
IV
IV
V
IV
V
IV
IV
III
IV
IV
III
III
III
IV
III
IV
III
IV
V
P
P
P
SP
P
P
P
P
P
P
P
SP
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
SP
P
P
P
P
P
P
P
P
149
0
20
0
0
0
0
43
76
76
9
0
64
35
13
29
80
47
35
61
62
0
7
0
3
0
24
0
0
0
12
54
62
72
72
75
3
58
66
55
66
90
72
85
83
50
69
92
77
77
79
41
52
77
73
61
77
46
65
61
55
92
79
49
43
58
38
61
36
69
77
77
83
61
77
61
79
61
79
79
77
23
49
69
52
61
97
52
77
86
77
48
25
75
75
67
70
36
73
67
12
73
41
41
45
48
67
71
52
45
43
23
59
19
58
87
50
35
37
57
42
75
58
61
73
67
44
72
67
56
50
82
56
76
75
73
0
31
32
27
0
0
0
29
14
3
5
0
0
0
0
84
38
0
20
37
0
17
7
0
34
0
9
13
15
12
29
6
36
17
36
0
0
19
16
21
85
8
40
52
3
88
93
47
54
67
55
60
55
42
34
65
74
58
59
62
87
63
77
51
9
26
28
2
86
62
0
15
28
56
54
55
54
41
45
53
56
82
94
56
56
84
78
54
78
63
99
97
99
99
99
99
100
99
100
12
99
98
99
99
99
98
95
96
99
100
100
99
99
99
99
96
99
99
100
99
99
99
98
98
97
98
96
99
98
99
99
98
99
98
98
47
57
51
51
49
40
47
68
62
23
49
53
48
43
46
84
64
49
52
50
27
42
23
49
56
39
37
36
47
43
64
56
64
64
68
33
58
68
54
58
89
60
72
79
60
IV
III
IV
IV
IV
IV
IV
III
III
V
IV
III
IV
IV
IV
II
III
IV
III
IV
V
IV
V
IV
III
IV
IV
IV
IV
IV
III
III
III
III
III
IV
III
III
III
III
II
III
III
II
III
P
P
P
P
P
P
P
SP
SP
P
P
P
P
P
P
C
SP
P
P
P
P
P
P
P
P
P
P
P
P
P
SP
P
SP
SP
SP
P
P
SP
P
P
C
SP
SP
SP
P
150
56
42
12
0
2
62
12
0
0
0
31
17
0
10
7
2
0
26
71
9
25
14
59
74
0
8
3
18
24
15
0
13
0
0
0
9
39
46
43
23
2
4
54
42
40
69
55
77
34
7
58
83
61
58
49
43
55
32
73
30
52
46
65
92
73
77
77
65
73
65
77
38
52
46
43
79
92
38
77
79
69
83
83
83
79
30
83
65
52
38
65
22
79
47
14
56
33
36
36
55
67
47
41
62
40
57
59
70
82
69
72
73
73
76
58
64
36
43
45
51
52
78
58
50
40
67
90
71
76
70
59
70
52
57
66
21
0
5
0
0
0
59
0
0
0
0
53
69
0
0
0
0
0
71
0
0
8
0
24
0
1
0
0
0
0
0
17
0
0
0
0
0
0
0
27
0
0
0
13
10
58
57
70
79
56
86
2
29
35
64
77
74
58
87
78
64
52
83
96
66
80
72
76
54
57
80
57
45
80
84
88
61
47
39
59
51
67
37
55
71
64
80
59
45
35
99
99
99
34
28
98
99
99
99
99
99
99
98
99
95
99
100
90
93
88
89
96
99
98
99
98
99
100
94
99
100
99
98
100
99
99
99
100
98
97
99
99
97
99
99
60
44
54
31
16
59
45
34
34
40
50
53
44
52
38
42
38
53
83
48
55
54
61
66
43
51
35
40
45
45
50
57
36
41
43
46
62
55
58
58
38
53
53
49
46
III
IV
III
IV
V
III
IV
IV
IV
IV
IV
III
IV
III
IV
IV
IV
III
II
IV
III
III
III
III
IV
IV
IV
IV
IV
IV
IV
III
IV
IV
IV
IV
III
III
III
III
IV
III
III
IV
IV
SP
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
C
P
P
P
SP
SP
P
P
P
P
P
P
P
P
P
P
P
P
SP
P
P
P
P
P
P
P
P
151
63
90
78
83
21
59
15
19
68
0
74
2
0
0
2
0
30
54
54
26
0
16
11
12
7
27
42
67
60
37
28
12
29
44
20
52
88
61
61
49
61
32
38
38
38
65
92
79
83
83
46
69
83
88
61
12
77
49
46
49
55
55
65
55
55
58
49
58
43
56
72
91
78
73
75
73
59
73
70
61
70
71
54
59
52
64
69
73
74
71
36
70
52
71
52
58
79
75
64
50
64
44
57
62
43
8
87
27
41
0
25
0
0
0
0
0
1
0
0
0
0
0
4
0
28
0
0
0
0
0
0
62
11
21
0
13
0
0
0
0
54
94
53
46
69
55
55
86
56
78
81
82
63
66
58
76
71
53
76
75
76
87
81
75
58
62
92
46
25
79
76
76
81
73
57
99
93
99
99
98
99
98
98
98
99
96
99
98
99
99
98
98
99
99
95
99
99
98
99
99
99
95
100
99
99
99
99
99
99
99
57
90
66
67
49
61
39
49
54
41
64
54
46
48
46
43
54
61
64
56
32
55
45
47
40
47
68
60
53
51
53
43
51
51
43
III
II
III
III
IV
III
IV
IV
III
IV
III
III
IV
IV
IV
IV
III
III
III
III
IV
III
IV
IV
IV
IV
III
III
III
IV
III
IV
IV
IV
IV
P
C
SP
SP
P
SP
P
P
P
P
SP
P
P
P
P
P
P
SP
SP
P
P
P
P
P
P
P
SP
P
P
P
P
P
P
P
P
152
HARKINS
DO mg/l
R1
BOD
R2
pH
pHt (su)
R3
PO4
R4
Sn
140
144
81
75
148
243
106
96
183
211
272
173
113
191
235
167
236
60
154
121
73
27
27
24
52
89
77
1
34
1
87
70
209
125
195
256
140
173
273
210
1
1
182
263
38
267
40
1
1
1
153
268
253
200
181
73
42
275
157
54
173
184
232
212
288
101
74
120
77
136
1
103
118
36
1
182
263
38
0.0
0.0
0.0
0.5
0.0
4.4
3.9
0.1
0.2
0.6
1.4
0.2
1.8
0.1
1.2
1.5
3.8
6.0
0.0
0.0
0.2
0.8
0.4
0.5
2.1
1.8
0.5
0.3
1.4
1.7
1.8
2.6
0.0
0.0
0.9
0.5
0.0
0.4
4.3
13
1
1
125
1
283
277
30
77
133
204
58
230
39
190
211
276
290
8
1
72
156
115
128
242
230
123
97
204
225
235
253
19
1
166
126
13
115
282
274
1
275
275
266
1
1
1
288
278
258
278
1
289
1
1
1
1
296
289
1
1
1
1
1
1
1
1
1
1
1
1
265
272
1
266
275
266
1
16.41
6.81
2.38
0.44
25.64
20.12
14.55
7.15
8.95
13.64
0.89
17.02
0.74
15.54
15.59
23.38
25.39
0.71
0.51
14.67
14.76
13.30
13.75
18.20
17.67
13.96
16.31
17.69
21.31
17.90
24.84
2.32
1.27
18.02
9.87
0.11
1.97
26.52
153
142
185
222
122
91
100
148
49
203
177
189
107
131
138
1
1
57
217
186
183
1
132
52
94
104
144
87
173
246
41
227
244
158
200
45
26
83
33
1
1
102
186
221
165
103
270
1
1
153
268
275
157
253
98
100
1
1
151
99
155
35
120
1
134
133
152
135
249
278
34
224
262
56
1
277
72
138
119
104
1
284
137
102
54
104
56
174
1
1
130
3.4
0.9
2.7
0.4
1.7
0.2
1.4
0.1
0.8
1.6
3.2
8.5
0.8
0.6
2.5
1.2
0.6
1.8
1.4
3.0
2.4
0.3
0.3
0.1
1.1
0.1
0.0
0.1
3.4
0.3
0.4
1.9
0.1
1.4
1.0
1.1
0.2
1.0
2.9
1.3
0.8
0.0
1.1
1.7
3.4
269
166
256
111
225
55
200
43
162
217
265
292
156
141
251
195
143
230
204
264
247
97
97
48
178
48
8
48
270
93
111
237
30
204
172
182
72
172
259
198
156
13
182
225
270
1
278
258
278
1
296
289
289
1
1
258
1
1
1
1
1
1
1
1
244
1
263
261
1
1
263
295
256
234
298
273
249
283
261
294
293
1
1
1
1
1
244
1
1
236
19.45
9.76
15.24
1.81
16.96
1.13
5.17
1.54
15.42
17.63
15.26
27.06
13.35
14.07
20.77
21.59
14.46
23.56
16.12
9.74
20.57
1.79
2.24
11.19
18.41
0.21
0.83
3.79
16.98
2.92
5.08
9.08
1.29
7.06
11.01
6.46
11.75
16.72
24.38
18.93
16.46
0.60
21.14
22.55
10.23
154
43
216
223
172
198
257
285
232
157
257
239
129
206
129
58
137
51
1
1
82
73
89
231
163
206
219
223
179
50
292
188
261
204
236
116
110
147
56
168
42
220
44
1
1
1
280
1
211
131
185
156
28
75
41
131
122
37
76
271
283
58
1
1
43
1
138
29
186
272
213
159
123
1
260
186
106
1
106
29
43
59
138
78
106
281
59
78
106
138
186
7.4
1.6
0.2
0.6
0.3
1.6
4.4
2.1
1.5
0.1
1.4
0.7
0.2
1.4
8.6
1.8
0.6
2.0
2.7
2.7
3.2
2.5
0.2
0.4
0.7
2.9
2.5
4.6
20.5
0.2
0.7
4.0
1.1
2.9
0.6
2.4
1.1
1.4
0.0
0.8
0.4
0.3
0.6
0.7
0.4
291
220
80
139
93
220
283
243
211
43
200
149
84
200
293
230
143
241
256
254
265
251
66
115
155
261
250
286
298
80
149
279
182
261
143
247
182
200
20
156
115
89
143
149
115
1
1
244
1
1
1
1
1
1
1
242
240
252
286
1
1
1
102
94
94
102
1
158
167
94
1
1
115
1
175
184
1
220
171
186
175
158
187
250
195
147
198
158
171
225
22.49
22.96
1.66
13.26
11.48
18.13
27.56
21.00
19.54
12.95
7.31
7.00
3.93
5.30
22.34
19.78
19.74
19.95
19.00
19.00
13.94
22.82
3.40
3.58
7.69
19.60
19.69
20.01
22.50
5.14
5.47
27.93
6.37
15.73
7.44
12.14
6.43
9.22
1.76
5.63
7.75
5.33
8.28
7.29
4.42
155
97
152
289
276
63
40
99
176
101
93
212
271
179
234
294
293
160
200
37
1
155
1
1
1
68
171
142
152
79
252
1
206
61
265
169
158
251
254
202
205
241
109
189
118
62
175
213
201
138
213
285
78
265
260
255
225
106
213
247
186
238
201
201
186
287
138
29
123
201
159
159
106
225
272
106
286
255
255
106
186
186
59
78
123
186
78
59
78
250
272
2.3
0.5
0.5
0.5
3.4
0.9
1.8
0.4
0.6
0.1
0.2
4.2
2.1
0.2
1.4
3.0
0.8
0.2
1.6
2.8
0.2
0.4
0.1
1.3
1.2
1.1
0.2
0.0
0.3
1.0
1.9
0.8
0.1
0.6
3.5
0.2
3.7
1.9
1.2
1.4
1.2
0.0
0.2
1.1
17.6
246
128
128
128
270
169
230
110
133
27
66
281
243
60
204
263
156
66
220
258
55
114
41
198
195
182
84
8
104
172
237
165
35
143
273
60
275
236
190
210
190
13
66
182
296
213
255
193
222
210
240
195
287
218
198
232
124
179
256
163
133
198
227
213
243
226
115
115
136
206
119
206
222
210
94
143
282
227
133
141
248
152
192
201
284
206
187
210
254
94
8.27
1.86
5.69
5.40
10.28
5.61
9.95
1.91
2.94
1.40
1.35
16.63
8.57
1.73
9.88
14.41
3.61
1.18
7.81
11.71
1.33
12.15
7.23
9.82
6.18
7.61
2.87
0.42
2.73
11.05
12.55
4.01
1.50
8.65
11.72
0.52
16.25
11.91
6.57
5.91
8.76
4.45
3.78
4.21
16.58
156
67
155
1
1
27
24
228
284
282
114
45
262
213
127
192
289
238
197
267
269
48
110
39
95
55
164
1
1
72
127
253
268
277
277
285
91
255
281
260
279
298
288
297
296
245
123
1
78
78
59
237
201
78
106
159
78
225
138
159
186
1
59
213
233
175
238
159
246
123
78
78
43
159
78
159
59
159
59
59
78
265
213
123
201
159
1
201
78
43
78
1.1
0.5
0.6
0.8
0.1
0.0
0.0
1.4
0.2
19.7
0.0
0.3
0.2
0.1
0.2
2.2
3.4
0.5
0.1
0.0
0.2
0.0
0.1
0.1
1.1
0.6
0.0
0.4
0.3
1.2
0.8
0.1
1.5
1.6
2.7
1.7
0.6
0.1
0.3
0.2
1.2
0.3
0.1
2.0
0.3
182
123
139
162
24
13
20
204
84
297
8
102
76
27
72
245
268
132
43
20
66
1
30
39
178
137
8
115
97
190
162
43
215
217
254
225
137
48
96
59
190
90
24
239
93
169
1
1
1
1
1
1
1
1
1
1
1
1
109
216
1
1
232
147
124
181
109
181
195
1
1
1
1
1
1
1
119
1
1
1
113
187
100
102
119
1
150
1
1
109
7.16
18.06
17.35
18.20
15.11
11.99
11.14
20.32
15.04
21.44
13.81
13.19
12.08
4.10
1.37
26.66
23.45
2.59
4.56
5.47
2.81
4.20
2.77
2.30
17.25
14.75
16.72
14.46
14.17
14.70
18.10
5.96
21.42
21.53
23.28
10.34
4.89
8.04
6.89
6.52
24.00
5.85
15.94
24.30
8.55
157
262
225
133
75
71
259
120
35
35
37
241
146
47
119
105
83
63
179
279
114
182
133
249
275
66
107
85
151
169
139
63
124
27
1
54
116
217
214
214
166
79
97
239
229
226
123
186
78
247
281
175
43
159
175
213
233
186
250
106
255
201
225
138
1
106
78
78
138
106
138
78
238
201
225
233
59
1
238
78
59
123
43
43
43
59
255
43
138
201
238
0.4
0.2
0.7
14.0
15.1
0.3
0.2
0.4
0.6
0.6
0.8
0.0
1.5
1.0
0.7
0.2
0.0
5.2
4.1
5.8
5.7
2.9
0.4
1.7
0.2
1.5
0.1
0.2
3.9
0.1
0.2
0.7
1.6
0.2
0.1
1.1
0.4
0.3
1.6
2.4
0.4
1.0
0.5
0.2
0.1
115
72
149
294
295
90
63
106
133
133
156
13
215
172
148
53
20
287
280
289
288
259
106
225
53
211
48
84
278
24
55
149
220
66
30
178
106
97
217
249
115
172
126
77
41
119
149
102
163
1
163
1
133
143
203
167
227
230
175
271
203
238
222
94
185
152
154
187
115
230
136
253
181
284
234
239
1
128
119
179
143
187
124
154
141
158
150
244
124
136
7.76
3.64
9.02
13.10
22.19
4.56
14.50
5.72
5.93
4.06
5.77
0.39
7.18
6.37
2.92
1.35
1.02
11.47
22.94
13.02
14.99
12.65
4.55
13.52
1.97
10.54
0.75
1.88
9.65
0.31
4.50
18.92
10.51
8.76
5.56
7.17
7.03
8.77
12.34
13.31
4.02
9.78
3.92
4.68
3.79
158
265
295
287
291
162
250
133
160
270
68
283
78
1
27
85
27
199
246
248
178
59
150
126
133
112
196
229
274
264
210
193
122
194
233
7400.25
201
29
159
159
213
159
250
238
238
238
138
1
59
43
43
225
123
43
29
159
279
78
213
225
213
186
186
138
186
186
175
213
175
233
6911.92
0.2
4.4
0.1
1.1
0.3
1.0
0.2
0.2
0.3
0.0
0.6
1.0
1.7
0.9
1.0
2.0
1.5
0.4
1.2
3.6
0.1
0.7
0.3
0.1
0.2
0.1
3.3
0.2
0.4
0.1
1.1
0.1
0.2
0.2
63
283
34
182
102
170
80
80
90
1
141
172
224
166
170
239
211
111
195
274
27
149
105
43
77
35
267
84
106
35
178
35
60
63
7400.25
158
1
143
102
171
130
218
163
201
156
169
100
102
113
136
128
220
140
130
109
270
130
269
213
193
206
102
171
156
216
175
251
205
236
7400.25
4.28
27.91
5.67
11.31
2.57
8.14
1.27
2.44
3.92
2.71
7.22
14.35
15.92
12.43
10.35
11.54
7.26
9.28
13.59
13.46
1.60
7.84
1.17
0.66
1.55
1.20
13.87
5.29
5.21
1.27
5.56
0.18
1.51
1.78