Appendix 2
Form for the Submission of Action Programme for a Supply on the RAL.
Name of
Water
Supply
Water
Supply
Zone
Code
Primary
Reason
Supply is on
the RAL
Date of
exceedance
of
Parametric
Value5
Staleen
PWS
2100PUB10
19
Alum
Exceedances
11-03-09
12-01-09
12-01-09
02-12-10
231.9µg/l
210.03µg/l
298.7µg/l
431µg/l
02-12-10 872.1µg/l
02-12-10 891.6µg/l
02-12-10 461.5µg/l
(This is a marked
improvement as there
was 16 exceedances
detected in 2008)
Proposed Action
(please indicate a,
b
or c below)
a. Abandon
b. Upgrade
c. Improve
operations
b. Upgrade works
completed as part
of Stage 1 works
and further works
as proposed as part
of Stage 2 works.
Details of Actions Proposed
Stage 1 Upgrade Works:
- Alum/poly dosing
modifications. New polymer
dosing pipework and alum
tank lining. Auto change over
on alum/poly dosing.
- Leveling of sedimentation
channels.
- On – line monitoring. pH
on-line monitoring of raw and
settled waters.
Turbidity on-line monitoring
of raw, settled, filtered and
final waters. On-line alum
monitoring of final water.
Installation of S:CAN monitor
on raw water. Service and
recommissioning of existing
ammonia monitor.
- Installation of telemetry
system to log on-line monitors
and give out alarms.
- Instrument air
improvements.
- Disinfection modifications.
Details
of
Interim
Measur
es
Timeframe for
the
Completion of
Action
Programme6
Actions proposed now complete as
part of Stage 1 Upgrade Works
Stage 2 Emergency Works:
Refurbishment of existing
filters.
Installation of additional
filters.
Installation of pH correction,
coagulation control system.
Modifications to improve
existing sludge handling
system.
€1.8M has been allocated in the
DOEHLG ‘Water Services
Investment Programme 2010-2012’
towards the Staleen Water
Treatment Plant Emergency Works
(Stage 2)
Estimated project programme
timeline:
Q2/Q3 – 2011: Design review and
Water Pricing Policy Report
submitted to LCC in June 2011and
final documentation forwarded to
DOEHLG in July 2011.
Project has been included in the
WSIP 2012-2013.
Ardee
PWS
2100PUB10
01
Alum
Exceedances
08-06-09 241.7µg/l
23-03-09 273.2µg/l
12-01-09 317.5µg/l
27-01-10
08-02-10
22-02-10
23-03-10
200.2µg/l
1175µg/l
334.2µg/l
221.6µg/l
b. Upgrade works
as part of Ardee
Waterworks
Improvement
Scheme – pH
adjustment
contract.
- Refurbishment of existing
filter 1.
- Alum residual monitor on
final water.
Turbidity monitors on raw,
settled, filtered and final
water.
Chlorine residual monitor on
final water.
Q2 – 2012: Completion of Part 8
Planning, review of contract
documentation.
Q3 – 2012: Tendering of works.
Q4 – 2012: Tender evaluation,
contract award and commencement
of works.
Q4 – 2013: Estimated contract
completion.
Media replacement in filter 1,2 & 3
has taken place.
Installation of all monitors and
telemetry system is complete.
(2 exceedances in
2008 and 2
exceedances in 2007)
- Installation of telemetry
system to log on-line
monitors, monitor trends and
notify alarms to caretaker.
- Installation of pH correction,
sulphuric acid dosing system.
Acid dosing /pH correction system
commissioned and operating
intermittently since June 2010.
Health and safety issues being
addressed within upgrade currently
under way. Completion within Q2
2012.
Further upgrade works have gone
to tender on the 24-06-11 which
include the following:
1. A new Plant PLC to provide
automation of the filter air
scour/backwash sequence, with
auto washes initiated as required by
reference to filter in service time,
loss of head or outlet turbidity,
filter queue management and
prioritising auto filter wash
initiation. Filter optimisation will
also include filter slow start
operation.
2. Modification to the existing
washwater and air scour pipework
including the addition of additional
pneumatically actuated valves so
that the wash sequence each section
of Duplex Filters 1 can be air
scoured
and
backwashed
independently of the other section
and so eliminate the existing back
wash flow bias between sections of
the duplex filter.
3. Replacement of pneumatically
operated modulating outlet valve,
actuator and positioner on Filter 2.
4. Replacement of one
existing air blowers with
type oil-free air blower
unit complete within
attenuation enclosure.
of the
a rotary
package
acoustic
5. Monitor the alum, acid and
hypochlorite dosing systems and if
chemical flows fall outside a
tolerance band initiate automatic
changeover to the standby dosing
unit with system failure event to be
alarmed in the event of a failure of
both the duty and standby dosing
units.
6. The new Plant PLC shall
continuously
monitor
the
operational status of both filtration
and chemical dosing systems and
provide alert/alarm notification
outputs reflecting status changes in
key parameters or alarm events
critical to maintaining treated water
quality and output production from
the Works. A modification will
also be made to the chlorine dosing
of the treated water to provide
improved
control.
operational
residual
7. The existing Temetra data
acquisition and GSM messaging
facility shall be upgraded to meet
the additional requirements of the
upgraded Works.
8. Removal of media in filters 1
and 2 and replacement with new
media including under drain
inspection and remedial works if
necessary.
Revised Project programme timeline:
Omeath
PWS
2100PUB10
12
Coliform
Exceedance
08-03-10 1 No.
Coliform
30-07-09 >200
coliforms
None in 2008
None in 2007
5 exceedances in
2006
a. Upgrade works
has taken place on
existing plant to
ensure quality of
supply but now
with the funding
allocated and
scheme approval
received from
- Replacement of media in
slow sand filters.
- Installation of turbidity
monitors after both sand filters
and final water.
Installation of chlorine
residual monitor on final water
leaving plant. Ammonia
Tender released 24-06-11.
Tenders Due 22-07-11.
Tender Evaluation 05-08-11.
Contract Award 12-08-11.
Contract Design (4 wks) 09-10-11.
On-Site Works Commenced 01-0112.
Works Substantially Complete 0106-12.
Works Commissioned and Fully
Complete 01-07-12.
Media replacement in both slow
sand filters is completed.
Installation of all monitors and
telemetry system is completed.
Additional chlorine monitor
installed on network in village.
DOEHLG, the
existing source is
to be abandoned in
favor of link to
Cooley Regional
Water Supply
Scheme, ensuring
both quality and
quantity of
supplies.
monitor installed in raw water
collection chamber.
- Installation of telemetry
system to log on-line
monitors, monitor trends and
notify alarms to caretaker.
As requested in Section 4.1 of
Plant Audit Recommendations
(DW2009/309) the existing
supply is to be replaced and
supplied from the Cooley
Regional Ground Water
Supply.
€3.178M has been allocated in the
DOEHLG ‘Water Services
Investment Programme 2010-2012’
towards the upgrade of the Cooley
Regional Water Supply Scheme to
provide an alternative water supply
to Omeath, replacing the existing
mountain stream source.
Written approval has been received
from DOEHLG to proceed with
this scheme.
Current Project Programme
Timeline:
Q4 – 2010: Consultants brief
completed.
Q2 – 2011: Project Consultants
Appointed (Mouchel).
Q2 to Q4 – 2011: Design and
document preparation.
Q2 – 2012: Tendering of works
Q2 to Q3 – 2012: Tender
evaluation, contract award and
contract commencement.
Q4 – 2012: Contract award and
commencement.
Q3 – 2013: Contract completion.
END
_____________________________________________________________________
5 Provide
details on the date of the most recent exceedance (if any) of the parametric value for the parameter linked to the primary reason for inclusion of the
supply on the RAL. In the case of supplies on the RAL for inadequate Cryptosporidium barriers include details of the date of any positive results for oocysts in
the raw or treated water, and in the case of these supplies if Cryptosporidium monitoring is not carried out then this should be detailed.
6 The
month and year of completion of works should be inserted here. The Action Programme in this case means that main programme of works that needs to be
carried out in order to demonstrate to the EPA that the supply should be removed from the RAL.