Annual Environmental Review - Page 1
Department of Primary Industries, Parks, Water and Environment
ANNUAL ENVIRONMENTAL REVIEW
Enter plant name
WASTEWATER TREATMENT PLANT
Enter Reporting Period Dates
Author
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Contact Details
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Date
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License to Operate/NELMS/EPN
number
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Responsible Person
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Statement of Endorsement from Responsible Person
A signed statement must be provided by the responsible person acknowledging and
endorsing the contents of this Annual Environmental Review.
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Version 7, June 2013
Annual Environmental Review - Page 2
Department of Primary Industries, Parks, Water and Environment
Contents
Section A: General Notes ...................................................................................................... 4
Section B: Permit/EPN and Activity Details ........................................................................... 5
B1
Permit/EPN Holder.................................................................................................................. 5
B2
Activity / Activities to which this Report Relates ................................................................... 5
B3
Activity Details ........................................................................................................................ 6
Section C: Monitoring Summary ............................................................................................ 7
C1
Flow ......................................................................................................................................... 7
C2
Effluent Concentration.......................................................................................................... 11
C3
Mass Load ............................................................................................................................. 14
C4
Ambient Monitoring ............................................................................................................. 15
C5
Sewage Sludge and Biosolids ................................................................................................ 17
Section D: Compliance........................................................................................................ 19
D1
Compliance with Flow Limits ................................................................................................ 19
D2
Compliance with Discharge Concentration Limits ................................................................ 19
D3
Compliance with Reporting and Planning Requirements ..................................................... 23
D4
Summary of Compliance with Permit Conditions ................................................................. 23
D5
Reuse annual reporting ......................................................................................................... 25
Section E: Incidents and Complaints ................................................................................... 26
E1 Notifiable Incidents under section 32, EMPCA ......................................................................... 26
E2 Complaints against the Activity ................................................................................................ 28
Section F: Additional Commitments .................................................................................... 29
F1 Review of Development Proposal and Environmental Management Plan (DPEMP) &
Environmental Management Plan (EMP) ......................................................................................... 29
Appendix 1: Calculation of Mass Loads .............................................................................. 30
General.......................................................................................................................................... 30
Monitoring of discharge concentration ........................................................................................ 30
Flow monitoring ............................................................................................................................ 30
Calculating actual pollutant loads discharged to waters .............................................................. 30
Version 7, June 2013
Annual Environmental Review - Page 3
Department of Primary Industries, Parks, Water and Environment
Use the checklist below to ensure that you have completed your ANNUAL
ENVIRONMENTAL REVIEW correctly (all boxes should be marked).
CHECKLIST
check
check
check
check
check
check
check
check
check
check
check
check
check
check
check
check
Cover
Cover identification details completed
Cover
The Annual Environmental Review has been signed by the
appropriate person(s) and, if applicable, the revised reporting
period entered
Section B1
All permit / EPN details are entered and correct
Sections B2-B3
You have entered / updated the activity description and status
Section C1
Flow information provided
Section C2
Concentration information provided
Section C3
Mass load information provided
Section C4
Ambient monitoring information provided
Section C5
Sewage sludge and biosolids information provided
Section D1
You have checked compliance with flow limits
Section D2
Compliance tables completed for all regulatory parameters
Section D2
You have provided a written summary and associated graphical
representations regarding compliance with discharge limits
Section D3-D4
Other compliance details completed
Section D5
Have you submitted your annual reporting for reuse where
required.
Section E1-E2
You have summarised incidents complaints
Section F1
You have answered the questions outlined in this section
Make a copy of the completed Annual Environmental Review and keep it with
check your environmental conditions / permit
Version 7, June 2013
Annual Environmental Review - Page 4
Department of Primary Industries, Parks, Water and Environment
Section A: General Notes
1.
Your Annual Environmental Review must be completed and submitted to the Director,
Environment Protection Authority, within 3 months of the end of the reporting period.
The reporting period is 1 July to 30 June.
2. Please note this document will be treated as a publicly available document i.e.
1.
will be made available to the public on request; and / or
2.
may be referenced in the EPA Division’s Annual Report; and/ or
3.
may be published on the EPA Division’s webpage; and /or
4.
may be incorporated into the annual Water and Sewerage State of the Industry
Report.
3. An electronic copy of this form is available from the Wastewater Section of the EPA
Division.
4. All sections must be completed or marked “n/a” where applicable.
Please email the completed report to:
wastewater@environment.tas.gov.au
or post it to:
The Director,
Environment Protection Authority.
GPO 1550
Hobart
TAS 7000
Version 7, June 2013
Annual Environmental Review - Page 5
Department of Primary Industries, Parks, Water and Environment
Section B: Permit/EPN and Activity Details
B1
Permit/EPN Holder
Responsible Person identified in Permit/EPN: Click here to enter text.
Trading Name: Click here to enter text.
ABN Number: Click here to enter text.
Postal Address of responsible person: Click here to enter text.
Phone Number of responsible person: Click here to enter text.
Email Address of responsible person: Click here to enter text.
B2
Activity / Activities to which this Report Relates
Permit
Reference Number
(use Planning Authority’s DA number or EPA Division reference
number, e.g. Licence to Operate Scheduled Activity, Permit
Conditions - Environmental)
Date of Issue
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EPN
EPN Numbers
If more than one EPN provide all numbers
Date of Issue
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Activity Description1
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Activity Name (if any)
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Activity Address
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Contact Person
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Note
In some cases, several planning permits and / or EPNs may exist in relation to a Level 2
Wastewater Treatment Plant1. Details are required in relation to each permit or EPN issued
for the activity.
1
Defined in EMPCA, Schedule 2, Part 3 as: the conduct of wastewater treatment works that involve
the discharge of treated or untreated sewage, septic tank effluent or industrial or commercial
wastewater to land or water, being works with a design capacity to treat an average dry-weather
flow of 100 kilolitres or more per day of sewage or wastewater.
Version 7, June 2013
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Department of Primary Industries, Parks, Water and Environment
B3
Activity Details
1. Provide a summary of any noteworthy changes to materials, structures, equipment or
processes used in the course of carrying out the activity during the reporting period, and
the date when those changes took effect. Where changes may have caused or
increased the emission of a pollutant or otherwise resulted in environmental harm,
provide the date that written approval for the change was granted.
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2. Provide a description of significant inputs of commercial and industrial wastewater and
tankered waste to the activity during the reporting period. Include any significant change
to those inputs when compared to the previous reporting period, including types,
sources, estimated quantities (where available) and key contaminants.
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Version 7, June 2013
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Department of Primary Industries, Parks, Water and Environment
Section C: Monitoring Summary
C1
Flow
The following monitoring information must be provided for the reporting period:
1.
The influent flow limits specified in your permit / EPN
Average Dry
Weather Flow
(kL/day)
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Peak Wet
Weather Flow
(kL/day)
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2. Average daily flow to the activity for each calendar month
Month
Average Daily Influent
Volume
(kL/day)
July
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August
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September
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October
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November
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December
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January
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February
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March
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April
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May
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June
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Department of Primary Industries, Parks, Water and Environment
3. Graphical representation of measured influent flow against flow limits and rainfall
If suitable data is available, provide a graphical representation of the reporting period
showing measured inflow (in ML/day), ADWF limit, PWWF limit if specified on your
permit/EPN and rainfall as measured at a relevant gauging station
Location and
site ID of
rainfall gauge
used
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Department of Primary Industries, Parks, Water and Environment
3. Total effluent volumes discharged from the activity each calendar month, based on daily
measured flows:
Month
4.
Discharge to Waters
Total Effluent Volume
(ML)
Discharge to Land (Reuse)
Total Effluent Volume
(ML)
July
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August
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September
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October
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November
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December
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January
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February
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March
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April
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May
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June
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TOTAL ANNUAL
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Total annual volume of treated effluent discharged at each authorised discharge point,
based on measured daily flows:
Name of Discharge Point
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Volume of effluent discharged
(ML and %)
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Annual Environmental Review - Page 10
Department of Primary Industries, Parks, Water and Environment
5.
Provide a description of the type of flow monitoring equipment or estimation method
used to measure influent and effluent flows during the reporting period. Use additional
rows where there is more than one measured stream of influent or effluent. Do not
include by-passes in this section.
Influent
Method of measurement or calculation
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(For example, magnetic flow meter,
estimation based on pump station
operational times)
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Effluent
Method of measurement or calculation
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Version 7, June 2013
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Department of Primary Industries, Parks, Water and Environment
C2
Effluent Concentration
For each regulatory monitoring point specified in your Permit/EPN, complete the details for
each pollutant listed in the table (or tables) below. Where there are multiple authorised
discharge points, provide information in relation to each one.
Note: If the wastewater treatment plant has discharge limits within its Permit or EPN that are not
listed in the tables below, please include these parameters.
1. Discharge to Waters – Monthly Monitoring Parameters
Name of Monitoring Point : Click here to enter text.
Pollutant
Units
No. of
samples
required in
permit/EPN
BOD5
mg/L
Number
Number
Value
Value
Value
NFR/SS
mg/L
Number
Number
Value
Value
Value
TC
cfu/100
mL
Number
Number
Value
Value
Value
O&G
mg/L
Number
Number
Value
Value
Value
TN
mg/L
Number
Number
Value
Value
Value
Ammonia
mg/L
Number
Number
Value
Value
Value
TP
mg/L
Number
Number
Value
Value
Value
pH
minimum
result
recorded
pH
mean of
sample
results
pH
maximum
result
recorded
Value
Value
Value
pH
Number
No. of
samples
collected &
analysed
50th%ile value
of sample
results
90th%ile value
of sample
results
Maximum
value of
sample
results
Number
Version 7, June 2013
Annual Environmental Review - Page 12
Department of Primary Industries, Parks, Water and Environment
2. Discharge to Waters – Annual Monitoring Parameters
Name of Monitoring Point : Click here to enter text.
Pollutant
Units
Value of sample
result
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
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Unit
Value
Version 7, June 2013
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Department of Primary Industries, Parks, Water and Environment
3. Discharge to Land / Effluent Reuse
Pollutant
Unit
No.
samples
required in
EPN
No.
samples
collected &
analysed
Minimum
value
50th %ile
value
Maximum
value
TC
cfu/100
mL
Number
Number
Value
Value
Value
BOD5
mg/L
Number
Number
Value
Value
Value
pH
minimum
result
recorded
pH
mean of
sample
results
pH
maximum
result
recorded
Value
Value
Value
pH
Number
Number
Version 7, June 2013
Annual Environmental Review - Page 14
Department of Primary Industries, Parks, Water and Environment
C3
Mass Load
Mass Loads of Total Nitrogen and Total Phosphorus discharged to waterways from the
activity must be calculated and reported annually using the formula contained in Appendix 1
(Calculation of Mass Loads) and entered into the table below. Select the appropriate option
below as to whether a time weighted or flow weighted approach has been adopted. Mass
load calculations should be based on the reported concentration of each sample multiplied
by the flow measured on the day of sampling. If the quantity entered in the table is greater
than the Permit/EPN Limit, the person responsible must detail the cause of this noncompliance in Section D. Attach your calculation spreadsheet as an Appendix.
Note: When a sample is reported as below detection limit for the test, half of the detection limit
value should be assigned to that sample for load calculation principles. Where 50% of sample
results for a particular pollutant are below the detection limit, zero may be reported for those
samples. This applies to samples collected during the reporting period.
Note: Where applicable, the mass load limits are contained in the Permit/EPN.
1. Mass Load
Nominate the method you adopted (delete the method not used):
Time weighted approach or Flow weighted approach
Parameter
Unit
Quantity Discharged
Limit
Total Phosphorus
kg/yr
Click here to enter text.
Click here to enter text.
Total Nitrogen
kg/yr
Click here to enter text.
Click here to enter text.
If the sample sets upon which these calculations are based were not complete, provide an
explanatory note indicating how many samples were missing and which time period they
related to. If the number of samples available is less than 50% of the required number of
samples for a parameter, leave the associated ‘quantity discharged’ field blank.
Version 7, June 2013
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Department of Primary Industries, Parks, Water and Environment
C4
Ambient Monitoring
If ambient monitoring was required during the reporting period, then complete the following
tables:
1. Ambient monitoring – biological
Purpose of Monitoring
Program
For example:
Impacts within mixing zone; control outside mixing zone
Short Description of
Monitoring Program
For example:
scope, purpose, proposed changes
A summary of the key
findings
Click here to enter text.
Action statement
A statement regarding proposed changes, if any, to the
management of the activity identified on the basis of the
ambient
monitoring,
and
associated
indicative
implementation time frames
2. Ambient monitoring – groundwater
Purpose of Monitoring
Program
For example:
Detecting lagoon leakage
Short Description of
Monitoring Program
For example:
scope, purpose, proposed changes
A summary of the key
findings
Click here to enter text.
Action statement
A statement regarding proposed changes, if any, to the
management of the activity identified on the basis of the
ambient
monitoring,
and
associated
indicative
implementation time frames
Version 7, June 2013
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Department of Primary Industries, Parks, Water and Environment
3. Ambient monitoring – physico-chem / microbiological
Purpose of Monitoring
Program
For example:
Impacts within mixing zone; control outside mixing zone
Short Description of
Monitoring Program
For example:
scope, purpose, proposed changes
A summary of the key
findings
Click here to enter text.
Action statement
A statement regarding proposed changes, if any, to the
management of the activity identified on the basis of the
ambient
monitoring,
and
associated
indicative
implementation time frames
4. Ambient monitoring – sediment
Purpose of Monitoring
Program
For example:
Impacts within mixing zone; control outside mixing zone
Short Description of
Monitoring Program
For example:
scope, purpose, proposed changes
A summary of the key
findings
Click here to enter text.
Action statement
A statement regarding proposed changes, if any, to the
management of the activity identified on the basis of the
ambient
monitoring,
and
associated
indicative
implementation time frames
5. Ambient monitoring – ecotoxicological
Purpose of Monitoring
Program
For example:
Impacts within mixing zone; control outside mixing zone
Short Description of
Monitoring Program
For example:
scope, purpose, proposed changes
A summary of the key
findings
Click here to enter text.
Action statement
A statement regarding proposed changes, if any, to the
management of the activity identified on the basis of the
ambient
monitoring,
and
associated
indicative
implementation time frames
Version 7, June 2013
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Department of Primary Industries, Parks, Water and Environment
C5
Sewage Sludge and Biosolids
Provide a summary of the quantities of sewage sludge removed from the WWTP, a list of destinations to which the sewage sludge was delivered
and the contaminant and stabilisation grading of that sewage sludge determined in accordance with the Tasmanian Biosolids Reuse Guidelines
1999 (TBRGs). Please note that the while the TBRGs state that lagoons need only be sampled prior to emptying, periodic sampling during
operation of the lagoon can be undertaken to monitor contaminant concentrations, which would give prior warning of any contamination problems.
Se
Zn
mg/kg
mg/
kg
mg/
kg
mg/k
g
mg/
kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
PCBs
Ni
BHC
Hg
Lindane
Pb
HCB
Cu
Heptachlor
Cr
(tota
l)
Chlordane
Cd
Dieldrin
Units
(dry
weight
basis)
As
Aldrin
Summary statistics of samples required to be taken in accordance with TBRGs during the reporting period – contaminants (if operating under an approved
Sludge Management Plan, update this list to reflect the requirement s of that plan)
DDT/DDD/DDE
1.
mg/
kg
mg/
kg
mg/
kg
mg/
kg
mg/
kg
mg/
kg
mg/
kg
mg/
kg
No.
Samples
in the
reportin
g period
Maximu
m
Arithme
tic
mean
(averag
e)
Minimu
m
Version 7, June 2013
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Department of Primary Industries, Parks, Water and Environment
BACC
2.
Sludge end use (reuse or disposal) or further treatment (add additional rows as needed). In cases where sludge has been sent to a different WWTP for
further treatment, it is only necessary to report quantity and fate and location where further treatment is to be undertaken.
Date
3.
Quanti
ty (dry
solid
tonnes
)
Solids content
% w/v
Stabilisation
method
Stabilisati
on Grade
Contamina
nt Grade
Biosolid
Classificati
on
End use / fate & location
Storage of biosolids at the WWTP stored on the land at the end of the reporting period
Quantity of sewage sludge and biosolids stored on the land at
the end of the reporting period (dry solid tonnes ) excluding
sludge in lagoons.
4.
Lagoon desludging (for lagoons only, add additional rows if more than 1 lagoon)
Date of last lagoon sludge level
assessment. Summarise findings &
recommendations of that
assessment.
5.
Proposed date of next lagoon sludge level
assessment
Proposed date of next desludging
Comments
Version 7, June 2013
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Department of Primary Industries, Parks, Water and Environment
Section D: Compliance
D1
Compliance with Flow Limits
Number of days on which the daily maximum throughput requirement (peak wet weather
flow) was exceeded:
1. No. days on which throughput requirement was exceeded
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D2
Compliance with Discharge Concentration Limits
Compliance assessment method
A comparison of monitoring results against the limits specified in the environmental
conditions of the permit must be provided in the table below.
Compliance should be calculated as the number of samples complying with specified limits
for individual parameters, expressed as a percentage of the total number of samples. This
test is to be performed against each relevant limit, i.e. against the median, 90th percentile
and maximum limits.
An interpretation of monitoring results and compliance evaluation parameters should also be
provided, accompanied by graphical representations where possible. Results of previous
reporting periods should be included for comparison purposes. Discussion of any significant
trends observable in the monitoring results and in the level of compliance over time must be
provided.
Note: Where separate limits exist for discharge to waters vs. discharge to land (reuse
scheme), compliance must be assessed separately against both sets of limits. The volume
of effluent discharged to land and to waters must be reported so that a flow-weighted
compliance assessment can be undertaken.
Note: Should it be required, an electronic copy of an Excel spreadsheet is available upon request
from the EPA Division to help undertake these calculations. Please note that a copy of this
completed spreadsheet may be appended to the AER in lieu of the table below.
Note: If the wastewater treatment plant has discharge limits within its Permit or EPN that are not
listed in the table below, please include these parameters.
Version 7, June 2013
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Department of Primary Industries, Parks, Water and Environment
Compliance against Limits for Discharge to Waters (fill in relevant fields in table).
1. Compliance summary statistics – discharge to water
Parameter
Type
Limit
Biochemical Oxygen Demand
(5 day) (mg/L)
Numerical
Limit(s)
Number
of
Samples
Number of
Samples
Complying
with Limit(s)
%
Compliance
Max
Value
Value
Value
Value
Biochemical Oxygen Demand
(5 day) (mg/L)
90th %ile
Value
Value
Value
Value
Biochemical Oxygen Demand
(5 day) (mg/L)
50th %ile
Value
Value
Value
Value
Non-filterable
Residue
Suspended Solids (mg/L)
/
Max
Value
Value
Value
Value
Non-filterable
Residue
Suspended Solids (mg/L)
/
90th %ile
Value
Value
Value
Value
Non-filterable
Residue
Suspended Solids (mg/L)
/
50th %ile
Value
Value
Value
Value
Thermotolerant Coliforms
(cfu/100 mL)
Max
Value
Value
Value
Value
Thermotolerant Coliforms
(cfu/100 mL)
90th %ile
Value
Value
Value
Value
Thermotolerant Coliforms
(cfu/100 mL)
50th %ile
Value
Value
Value
Value
Oil & grease (mg/L)
Max
Value
Value
Value
Value
Oil & grease (mg/L)
90th %ile
Value
Value
Value
Value
Oil & grease (mg/L)
50th
Value
Value
Value
Value
Total Nitrogen (mg/L)
Max
Value
Value
Value
Value
Total Nitrogen (mg/L)
90th %ile
Value
Value
Value
Value
Total Nitrogen (mg/L)
50th %ile
Value
Value
Value
Value
Ammonia – Nitrogen (mg/L)
Max
Value
Value
Value
Value
Ammonia – Nitrogen (mg/L)
90th
%ile
Value
Value
Value
Value
Ammonia – Nitrogen (mg/L)
50th %ile
Value
Value
Value
Value
Total Phosphorus (mg/L)
Max
Value
Value
Value
Value
Total Phosphorus (mg/L)
90th %ile
Value
Value
Value
Value
Total Phosphorus (mg/L)
50th %ile
Value
Value
Value
Value
pH
Max
Value
Value
Value
Value
pH
Min
Value
Value
Value
Value
%ile
of
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Department of Primary Industries, Parks, Water and Environment
2. Interpretation of compliance summary statistics - discharge to water
Interpretation of results
Explanatory notes
Graphs
Trend analysis
Actions to address non-compliance (implemented or proposed)
Compliance against Limits for Discharge to Reuse Scheme (fill in relevant fields in
table)
3. Compliance summary statistics – reuse
Note
The limits shown in the table below are default values for ‘Class B’ Effluent Reuse Schemes. The
limits can be modified to be consistent with the particular reuse scheme under consideration.
Parameter
Type
Limit
BOD (mg/L)
of
Numerical
Limit(s)
Number of
Samples
Number
of
Samples
Complying with
Limit(s)
% Compliance
Max
50
Value
Value
Value
Thermotolerant
Coliforms
(cfu/100 mL)
Median
1,000
Value
Value
Value
Thermotolerant
Coliforms
(cfu/100 mL)
Max
10,000
Value
Value
Value
pH
Max
6.5
Value
Value
Value
pH
Min
8.5
Value
Value
Value
Version 7, June 2013
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Department of Primary Industries, Parks, Water and Environment
4. Interpretation of compliance summary statistics - reuse
Interpretation of results
Explanatory notes
Graphs
Trend analysis
Actions to address non-compliance (implemented or proposed)
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Department of Primary Industries, Parks, Water and Environment
D3
Compliance with Reporting and Planning Requirements
Please provide dates for all reports and plans due during the reporting period. An
explanation is required in relation to any reports or plans not provided to the Director by the
due date.
1. Compliance with Reporting and Planning Requirements
Title of Report / Plan
Due date
Comments
Click here to enter text.
Click here
to enter a
date.
Click here to enter text.
Click here to enter text.
Click here
to enter a
date.
Click here to enter text.
Click here to enter text.
Click here
to enter a
date.
Click here to enter text.
Click here to enter text.
Click here
to enter a
date.
Click here to enter text.
D4
Summary of Compliance with Permit Conditions
1. Were all environmental conditions of Permit/EPN fully complied with in the reporting
period (including monitoring and reporting requirements, but excluding discharge limit
compliance?)
Yes or No
If you answered ‘No’ to question 1 above, please supply details of each non-compliance
using the table below. Please use a separate template for each non-compliance and note
the number of additional templates that have been used.
2. Details of non compliance
Condition of Permit/EPN not complied with
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Department of Primary Industries, Parks, Water and Environment
Summary of particulars of non-compliance (provide cross-reference to other sections
of this report if relevant)
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Date/time of events when the non-compliance occurred (if multiple occurrences, list
each separately)
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If relevant, the exact location of the non-compliance
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Cause of non-compliance
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Reference to existing contingency/management plan and how this was implemented
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Action taken or that will be taken to mitigate any adverse effects of the noncompliance
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Results of any samples taken in relation to the non-compliance event or investigation
into environmental impact of non-compliance
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Action taken to prevent a reoccurrence of non-compliance (including timeframes)
Click here to enter text.
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Department of Primary Industries, Parks, Water and Environment
D5
Reuse annual reporting
1. Have you submitted your annual reporting for reuse where required?
Yes or No
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Department of Primary Industries, Parks, Water and Environment
Section E: Incidents and Complaints
E1
Notifiable Incidents under section 32, EMPCA
1. In the table below, provide summary information regarding incidents notifiable under
section 32 of EMPCA for the reporting period excluding bypass events.
Incident category
Number of incidents
Noise
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Odour
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Other (eg. chemical spills)
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TOTAL
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2. Broadly characterise the notifiable incidents and provide information on what actions
have been or will be taken to prevent reoccurrence of similar incidents in the future.
Click here to enter text.
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Department of Primary Industries, Parks, Water and Environment
3. Provide information on bypass events during the reporting period. Please note that
“bypass” means the discharge of untreated or partially treated effluent most commonly
as a result of wastewater treatment plant (WWTP) component failure or increased
inflows to the WWTP as a result of high rainfall.
Easting
(GDA94)
Northing
(GDA94)
eg.
526428
mE
eg.
5252095
mS
Enter text
Enter text
Enter text
Enter text
Discharge
location
name
Event
date
Volume
discharged
Volume
estimated
or
measured
Level of
treatment
Enter text
Enter
text
Enter text
Enter text
Enter text
Enter text
Enter text
Enter
text
Enter text
Enter text
Enter text
Enter text
Enter text
Enter
text
Enter text
Enter text
Enter text
4. Total number of bypass events in the reporting period:
Enter text
5. Provide information on what actions have or will been taken to prevent reoccurrence of
bypass events:
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6. Provide total number of notifiable incidents in the reporting period (totals from E1.1 and
E1.4):
Enter text
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Department of Primary Industries, Parks, Water and Environment
E2
Complaints against the Activity
Note: Complainants’ personal details must be removed as required under the Personal Information
Protection Act 1994
1. Provide the number of complaints by category received from the public during the
reporting period. Note that some complaints may be notifiable incidents under section
32 of EMPCA. Therefore, there may be some duplication with this section and section
E1.
Complaint category
Number
Noise
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Odour
Click here to enter text.
Other
Click here to enter text.
TOTAL
Click here to enter text.
2. Broadly characterise the complaints and provide information on what actions have been
or will be taken to address the cause of the complaints.
Click here to enter text.
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Department of Primary Industries, Parks, Water and Environment
Section F: Additional Commitments
F1
Review of Development Proposal and Environmental Management Plan
(DPEMP) & Environmental Management Plan (EMP)
Provide the following information:
1.
List any relevant EMP, DPEMP and Reuse EMP and agreed review dates.
Title
Date
Agreed Review Date
Click here to enter text.
Date
Click here to enter text.
Click here to enter text.
Date
Click here to enter text.
Click here to enter text.
Date
Click here to enter text.
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Department of Primary Industries, Parks, Water and Environment
Appendix 1: Calculation of Mass Loads
General
Actual loads of air and water pollutants emitted over a given time period can be determined
by monitoring the volume of emissions/discharge over that time period and the pollutant
concentration (pollutant mass per unit volume) in the emission / discharge:
Pollutant load = pollutant concentration x volume
Volume normally needs to be measured continuously, and flow-weighted composite
sampling is the ‘best practice’ expectation in relation to flow monitoring for most Tasmanian
WWTP. In the case of sewage lagoons, however, grab sampling is considered appropriate
as effluent quality should be relatively consistent throughout the lagoon. Pollutant
concentration, provided that it does not vary widely, can be established via a statistically
rigorous sampling regime.
Monitoring of discharge concentration
Effluent sampling must be undertaken in accordance with the environmental conditions of
the permit. Depending on the type of wastewater treatment system and the date of issue of
the environmental conditions, the specified method may be composite sampling (time- or
flow-weighted) or grab sampling.
Flow monitoring
For the purpose of mass load calculation, outflow measurement is the preferred method for
monitoring flow. However, if outflow volumes are not measured and this measurement is not
required under the environmental conditions of the permit, inflow data may be used. In this
case, evaporation losses must be measured or estimated and deducted from the inflow data
in accordance with the following calculation:
Estimated discharge = inflow – sum of [(evaporation – rainfall) x pond or lagoon surface area]
Calculating actual pollutant loads discharged to waters
On the basis of the concentration results for the two parameters of concern, Total Nitrogen
and Total Phosphorus, and volume data in relation to the discharge of effluent to waters, use
the steps below to calculate the actual load of the pollutant discharged. Choose the method
which is consistent with the sampling technique utilised.
Please note that missing sampling results affect the statistical accuracy of the calculations. If
the number of sampling results available for a parameter is less than 50% of results
required, the results are not considered relevant.
1. Time-weighted composite or grab sampling
Step 1:
Calculate the observed load on each day a pollutant concentration sample is collected:
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Ld = Cd x Vd / 1000
Where
Ld = day’s observed load of the pollutant (kg)
Cd = concentration of the pollutant on the day (mg/L)
Vd = day’s total volume of discharge (kL)
Step 2:
Sum the observed daily loads (kg).
Step 3:
Divide the total from Step 2 by the total volume (kL) for those days. The result is the flowweighted concentration (kg/kL).
Step 4:
Multiply the flow-weighted concentration (kg/kL) from Step 3 by the total volume of treated
effluent discharged during the reporting period (kL).
Repeat the procedure for each pollutant in relation to a mass load limit is specified in the
environmental conditions.
2. Flow-weighted composite sampling
Step 1:
Calculate the observed load on each day a pollutant concentration sample is collected:
Ld = Cd x Vd / 1000
Where
Ld = day’s observed load of the pollutant (kg)
Cd = concentration of the pollutant on the day (mg/L)
Vd = day’s total volume of discharge (kL)
Step 2:
Sum the observed daily loads (kg).
Step 3:
Divide the total from Step 2 by the number of sampling events and multiply by 365. This will
provide the annual pollutant load in kg.
Step 4:
Repeat the procedure for each pollutant in relation to a mass load limit is specified in the
environmental conditions.
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