Elgin Area Primary Water Supply System Joint Board of

Transcrição

Ministry of the Environment
and Climate Change
Safe Drinking Water Branch
3232 White Oak Road, 3rd Floor
London ON N6E 1L8
Tel (519) 873-5094
Fax (519) 873-5096
Ministère de l’EnvironnementMinistère
et de
de l’Environnement et de
Ministère
l’Action de
enl’Environnement
matière de
et de l’Action e
l’Action en matière de changement
changement climatique
changement climatique
climatique
Direction du contrôle de la qualité deDirection
l’eau potable
du contrôle de la qualité de l’eau potab
Direction du contrôle de la qualité
de l’eau
Bureau
du district de London
Bureau du district
3ede
étage
London
potable
3232, chemin White Oak
3232, chemin
London
White(Ontario)
Oak
N6E
Lo
Bureau du district de London 1L8
Tel (519)1L8
873-5094
Tel (519) 873-5094
3e étage
Fax (519) 873-5096
Fax (519) 873-5096
3232, chemin White Oak
London (Ontario) N6E 1L8
Tel (519) 873-5094
Fax (519) 873-5096
August 18, 2015
File no. EL-CE- DE-540
Elgin Area Primary Water Supply System Joint Board of Management
235 North Centre Road, Suite 200
London, ON
N5X 4E7
Attention:
Mr. Andrew Henry, P. Eng., Manager of Regional Water Supply
Re:
Elgin Area Primary Water Supply System Inspection Report (WW# 220002967)
Inspection conducted on June 24, 2015
Dear Mr. Henry,
The enclosed Drinking Water Inspection Report outlines non-compliance, if any, with Ministry legislation, and
policies for the above noted water system. Violations noted in this report, if any, have been evaluated based
on community risk. These violations will be monitored for compliance with the minimum standards for drinking
water in Ontario as set forth under the Safe Drinking Water Act and associated regulations. Where risk is
deemed to be high and/or compliance is an ongoing concern, violations will be forwarded to this Ministry’s
Investigation and Enforcement Branch.
In order to measure individual inspection results, the Ministry has established an inspection compliance risk
framework based on the principles of the Inspection, Investigation & Enforcement (II&E) Secretariat and
advice of internal/external risk experts. The Inspection Summary Rating Record (IRR) provides the Ministry,
the system owner and the local Public Health Units with a summarized quantitative measure of the drinking
water system’s annual inspection and regulated water quality testing performance.
Section 19 of the Safe Drinking Water Act (Standard of Care) creates a number of obligations for individuals
who exercise decision-making authority over municipal drinking water systems. Please be aware that the
Ministry has encouraged such individuals, particularly municipal councillors, to take steps to be better informed
about the drinking water systems over which they have decision-making authority. These steps could include
asking for a copy of this inspection report and a review of its findings. Further information about Section 19 can
be found in “Taking Care of Your Drinking Water: A guide for members of municipal council” found under
“Resources” on the Drinking Water Ontario website at www.ontario.ca/drinkingwater.
Please note the attached IRR methodology memo describing how the risk rating model has improved to better
reflect the health related and administrative non-compliance found in an inspection report. IRR ratings are
published (for the previous inspection year) in the Ministry’s Chief Drinking Water Inspector’s Annual Report. If
you have any questions or concerns regarding the rating, please contact Tom Clubb, Drinking Water Program
Supervisor, at (519) 873-5122.
If you have any questions regarding the report, please feel free to call me at (519) 873-5022.
Yours truly,
Roland Plante
Provincial Officer
London District Office
[email protected]
cc.
14-075
Mr. Blair Tully, Ontario Clean Water Agency
Elgin - St. Thomas Health Unit
Middlesex - London Health Unit
Kettle Creek Conservation Authority
2
Ministry of the Environment and Climate Change
ELGIN AREA PRIMARY WATER SUPPLY SYSTEM
Inspection Report
Site Number:
Inspection Number:
Date of Inspection:
Inspected By:
210000871
1-BZAPU
Jun 24, 2015
Roland Plante
Drinking Water System Inspection Report
Table of Contents
Table of Contents
Owner Information…………………………………………………………………………
2
Inspection Details………………………………………………………………………….
2
Inspection Summary…………………………………………………..…………………..
7
LMR - Introduction ………………………………………………………………….………………
LMR - Source ………………………………………………………………….……………………
LMR - Permit to Take Water…………………………………………………………….…………
LMR - Capacity Assessment …………………………………………………………….………..
LMR - Treatment Processes …………………………………………………………….………..
LMR - Treatment Process Monitoring ……………………………………….………..…………
LMR - Process Wastewater ….………………………………………….………………………..
LMR - Distribution System ……………………………………………….………………………..
LMR - Operations Manual . …………………………………………………………….………….
LMR - Logbooks …………………………………………………………………….………..…….
LMR - Contingency/Emergency Planning ……………………………….………..……………..
LMR - Security .…………………………………………………………………….………..……..
LMR - Consumer Relations…………………………………………………………….………….
LMR - Certification and Training …………………………………………….………..…………..
LMR - Water Quality Monitoring ……………………………………………………….………….
LMR - Water Quality Assessment …………………………………………….………..…………
LMR - Reporting and Corrective Actions …………………………………………………………
7
7
7
8
9
11
13
13
15
15
16
16
17
17
18
20
20
Non-Compliance with Regulatory Requirements and Actions Required ……………
22
Summary of Best Practice Issues and Recommendations …………………………..
23
Signatures…………………………………………………………………………………..
24
Appendix A: Key Reference and Guidance Material for Drinking Water Systems
Appendix B: MOE Audit Sample Results
Appendix C: Inspection Rating Record
Inspection Report
OWNER INFORMATION:
Company Name:
Street Number:
Street Name:
ELGIN AREA PRIMARY WATER SUPPLY SYSTEM JOINT BOARD OF
MANAGEMENT
235
Unit Identifier:
P.O. Box 5035
NORTH CENTRE Rd
City:
LONDON
Province:
ON
Postal Code:
N5X 4E7
CONTACT INFORMATION
Type:
Phone:
Email:
Title:
Name:
Division Manager
A. J. Henry, P.Eng.
Fax:
(519) 930-3505 x1355
(519) 474-0451
[email protected]
Manager of Regional Water Supply Lake Huron & Elgin Area Primary Water Supply
Type:
Phone:
Email:
Title:
Name:
Compliance Manager
Erin McLeod
Fax:
(519) 930-3505 x4838
(519) 474-0451
[email protected]
Quality Assurance & Compliance Manager of Regional Water Supply Lake Huron &
Elgin Area Primary Water Supply
Type:
Phone:
Email:
Title:
Main Contact
(519) 782-3101
[email protected]
Senior Operations Manager
Name:
Fax:
Blair Tully
(519) 782-4521
Type:
Phone:
Email:
Title:
Operating Authority
(519) 782-3101
[email protected]
Operational Compliance Manager
Name:
Fax:
Denny Rodrigues
(519) 782-4521
INSPECTION DETAILS:
Site Name:
Site Address:
43665 DEXTER LINE UNION N0L 2L0
County/District:
Central Elgin
MOECC District/Area Office:
London District
Health Unit:
ELGIN-ST. THOMAS HEALTH UNIT
Conservation Authority
N/A
MNR Office:
N/A
Category:
Large Municipal Residential
Report Generated for plantero
on 18/08/2015 (dd/mm/yyyy)
Site #: 210000871
Date of Inspection: 24/06/2015 (dd/mm/yyyy)
Page 2 of 24
Inspection Report
Site Number:
210000871
Inspection Type:
Announced
Inspection Number:
1-BZAPU
Date of Inspection:
Jun 24, 2015
Date of Previous Inspection:
Jun 23, 2014
COMPONENTS DESCRIPTION
Site (Name): MOE DWS Mapping
Type:
DWS Mapping Point
Comments:
Not Applicable
Sub Type:
Site (Name): Raw Water Intake
Type:
Source
Sub Type:
Surface Water
Comments:
Raw water is drawn from Lake Erie through the intake structure. The structure is located
approximately 1,200 m offshore from the low lift pumping station. The raw water intake consists of a
1.5 m diameter concrete raw water intake pipe with a timber rock-filled and screened intake structure
approximately 3.0 m above the bed of Lake Erie equipped with a zebra mussel control diffuser and
having an intake capacity of 182,000 m³/d. The intake conduit and crib is fitted with a stainless steel
diffuser connected to a 75 millimeter polyethylene chlorine line. The sodium hypochlorite system was
replaced with a new chlorine gas system for zebra mussel control and consists of all associated
equipment, instrumentation and controls including:
two (2) chlorinators (duty and standby) each rated at 90.9 kg/d, one (1) vacuum producing system
with chlorine ejector assembly and one (1) chlorine solution injection assembly, one (1) service water
booster pump; six (6) 68kg cylinders connected to the system, each with a dedicated scale (3 duty
and 3 standby, complete with auto switchover assembly); gas detector and alarm system; emergency
valve closure system complete with an emergency shut off valve for each chlorine gas cylinder and
emergency exhaust fan system.
Site (Name): Low Lift Pumping Station
Type:
Source
Comments:
Low Lift Pumping Station consists of the following:
Sub Type:
Surface Water
• a low lift pumping station having a firm capacity of 91,000 m³/d;
• consisting of a 19.9 m diameter by 11.3 m side water depth (SWD) wet well with a heated
superstructure having an effective storage volume of 3,515 m³;
• a surge well having two (2) mechanically cleaned screens, two (2) low lift pump wells;
• four (4) low lift pumps, two (2) of which are rated at 243 L/s each and two (2) of which are rated at
775 L/s each at a total dynamic head (TDH) of 56 m;
• a grit pumping system to transfer accumulated solids within the low lift pumping station to the lake;
Site (Name):
Type:
Raw Water Pipeline to Treatment Plant
Source
Sub Type:
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Site #: 210000871
Surface Water
Page 3 of 24
Inspection Report
Comments:
The raw water transmission main travels northerly to the pre- treatment facility flash mixers. The raw
water pipe is approximately 1,400 m long and has a 750 mm diameter.
Site (Name): Elgin Area Primary Water Treatment Plant
Type:
Treated Water POE
Sub Type:
Comments:
Plant Enclosure Buildings:
Treatment Facility
• an approximately 33.5 m long by 28 m wide by 3.8 m high pre-treatment enclosure building housing
the flash mixers and flocculators as described below;
• an approximately 30.5 m long by 16.5 m wide filtration/administration enclosure building housing the
filters and high lift pumps as described below as well as administrative and laboratory facilities;
Flash Mixers:
• two (2) flash mix chambers (one for each treatment train) each with a volume of 21 m³ and each
consisting of two (2) cells, each cell with one (1) mixer and having dimensions 2.4 m long by 2.4 m
wide by 3.7 m side water depth (SWD);
Flocculators:
• two (2) banks of flocculation tanks each consisting of four (4) cells 7.8 m long by 6.1 m wide by 3.0
m SWD, each cell equipped with a surface-mounted vertical turbine mixer;
Sedimentation Tanks:
• two (2) concrete below-grade gravity sedimentation tanks each 60.3 m long by 16 m wide by 4.1 m
SWD with five discharge gates, each tank having a rated capacity of 45,500 m³/d;
Filters:
• four (4) gravity multimedia filters (sand and anthracite) each 15.9 m long by 6.1 m wide with a bed
area of 97 m² and a filter rate of 9.8 m/h at design flow, a filter surface wash system fed by one (1)
surface wash pump rated at 37 L/s at a TDH of 24 m and a filter backwash system fed by two
backwash pumps (one duty, one standby) each rated at 737 L/s at a TDH of 15.2 m;
• update: a single blower has been installed to provide for air scouring of filter bed #4 during
backwash, the blower provides a maximum air scour rate of 55 m/hr;
UV Disinfection System:
• four (4) ultraviolet disinfection units, each designed to provide a minimum dosage of 40 mj/cm² at a
flow rate of 263 L/sec (22,750 m³/d) and installed as one unit on each filter effluent pipe;
Clearwell and Reservoir
• one (1) clearwell, baffled, 28.6 m long by 26.7 m wide by 3.65 m SWD with effluent overflow troughs
to provide an operating volume of 2,630 m³;
• one (1) reservoir 27.7 m long by 27.7 m wide by 3.65 m variable depth for a total storage capacity of
2,800 m³ for high lift pump suction storage;
High Lift Pumping:
• two (2) two-speed vertical turbine pumps each rated at 347 L/s and 602 L/s at a TDH of 50 m and
67m respectively and two (2) single-speed vertical turbine pumps each rated at 602 L/s at a TDH of
67 m with suction pipes installed in the reservoir to provide a firm system capacity of 82,000 m³/d at
110 m head discharging to the 750 mm diameter primary transmission line;
Site (Name):
Type:
Elgin Area Primary Water Treatment Plant
Treated Water POE
Sub Type:
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Site #: 210000871
Treatment Facility
Page 4 of 24
Inspection Report
Comments:
Chlorination System:
• a gas chlorine disinfection system consisting of two (2) weigh scales having two (2) one-tonne
cylinders, a weigh scale with vacuum regulators and automated chlorine gas feed system, three (3)
(two duty, one standby) 228 kg/d capacity chlorinators and the associated equipment, instrumentation
and controls including gas detector and alarm system located in a separate chemical building
approximately 35 m long by 5.5 m wide and chemical feed lines dedicated to the pre-chlorination and
post-chlorination feed points with the ability to dose the settled water, the filters directly and the filtered
water;
Chemical Storage and Feed Systems:
• coagulant feed system consisting of ix (6) chemical metering pumps, two transfer pumps, one day
tank and two bulk storage tanks;
Feed Point - coagulant feed lines to each flash mixer cell on each process train;
Equipment - two (2) chemical metering pumps each rated at 66 L/hr at 1,035 kPa, four (4) chemical
metering pumps each rated at 42 L/hr at 1,035 kPa, two (2) transfer pumps (duty and standby) each
rated at 115 L/s at 90 kPa, one alum day tank with a nominal capacity of 1,800 L and two (2) 18,900 L
bulk storage tanks;
• powdered activated carbon (PAC) feed system consisting of two (2) bulk storage tanks each with an
operating volume of 170 m³ and equipped with two (2) mixers, two (2) PAC transfer pumps each rated
at 1.9 L/s at 29 kPa discharging to a PAC day tank with a nominal capacity of 3.0 m³, four (4) PAC
slurry pumps, two (2) rated at 155 L/h at 275 kPa and two (2) rated at 633 L/h at 275 kPa and
chemical feed lines to the flash mix chambers; acid solution consisting of two (2) 9,000 L bulk storage
tanks, one (1) 200 L day tank and two (2) chemical metering pumps (one duty, one standby) each
rated at 14.8 L/h at 690 kPa located in a separate room in the chlorine building;
• polyelectrolyte feed system consisting of either: a dry or liquid polyelectrolyte makeup system with
one (1) 285 L makeup tank, a 570 L solution day tank, two (2) dual head chemical metering pumps
rated at 72 L/s per head, two (2) dual head chemical metering pumps rated at 114 L/s per head and
chemical feed lines to the flash mix chambers and the flocculation tanks;
• fluoridation system using hydrofluosilicic acid solution consisting of two (2) 9,000 L bulk storage
tanks, one (1) 200 L day tank and two (2) chemical metering pumps (one duty, one standby) each
rated at 14.8 L/h at 690 kPa located in a separate room in the chlorine building;
Plant Drain:
• a 900 mm diameter plant drain that conveys wastewater from the flocculation tank drain,
sedimentation tank drain, surface wash and backwash waters to Lake Erie and also serves as an
alternate plant intake.
Site (Name): Elgin Area Primary Water Treatment Plant
Type:
Treated Water POE
Sub Type:
Treatment Facility
Comments:
A pH control/adjustment system that utilizes carbon dioxide gas and carrier water which is applied to
the process water prior to the flocculation and consist of the following components:
• one (1) 50 ton insulated, bulk carbon dioxide storage vessel located outdoors on a concrete pad; one
(1) carbon dioxide gas-carrier water mixture preparation panel, installed in a carbon dioxide room
located in the west building chemical room; two (2) booster pumps rated at 17 L/s at 80m TDH located
in the lower level of the chemical addition building; one (2) carbon dioxide gas-carrier water mixture
diffuser, installed on the common raw water supply piping; an electric vapourizer; vapour heater and
all associated piping, valves and instrumentation;
A corrosion control system that utilizes sodium hydroxide (NaOH) solution injected in the water
distribution transmission lines (east and west) as the flow leaves the plant and consists of the
following components:
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Site #: 210000871
Page 5 of 24
Inspection Report
• two (2) 14,500 L capacity sodium hydroxide storage tanks located in a containment area in a
separate building located on the eastside of the main plant; two (2) magnetic drive gear chemical
pumps with a 300 mL/min to 6,000 mL/min capacity range operating against a 20 m total dynamic
head; one (1) static mixer; one (1) water softener; two (2) chemical control booster pumps and all
associated piping, valves and instrumentation.
Site (Name): EAWS Primary Transmission Mains
Type:
Treated Water POE
Sub Type:
Reservoir
Comments:
The Elgin Area Primary Transmission Mains provide treated water at Fruit Ridge Line located in
Central Elgin, and the Albert Roberts Water Booster Station located at 8754 Tyke Road which serves
the City of St. Thomas. The transmission main ends at the distribution valve house located at 490
Edgeware Road in St. Thomas, where treated water discharges into the Elgin-Middlesex Pumping
Station Reservoirs located in Central Elgin at the north east corner of St. Thomas.
The primary transmission mains are also hydraulically connected to pressurized surge tanks. The
surge facilities are in place to protect the water mains from transient pressure conditions due to
sudden changes in flow rate. Two (2) of the pressurized hydro pneumatic surge tanks are located in
an isolated building on the water treatment plant property and the other surge tank (stand pipe) is
located at the surge facility on Fruit Ridge Line.
The original primary transmission line consists of approximately 15 kilometers of 750 millimeter
diameter pipeline with a total of forty seven (47) chambers including a combination of: valving, inground drain, air, pressure, meter and vacuum release valves.
The new twinned transmission watermain (steel pressure pipe) line consists of approximately 15
kilometers of 900 millimeter diameter pipeline including the following components: transmission line
interconnects, flow metres, chambers, isolation valves, in-ground drains, pressure control, and
air/vacuum release valves etc.
The transmission mains end at the distribution valve house located at 490 Edgeware Road in St.
Thomas where treated water discharges into the Elgin-Middlesex Pumping Station Reservoirs located
in Central Elgin at the north east corner of St. Thomas. The new transmission main was
commissioned in 2012.
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Site #: 210000871
Page 6 of 24
Inspection Report
INSPECTION SUMMARY
INTRODUCTION
*
The primary focus of this inspection is to confirm compliance with Ministry of the
Environment and Climate Change (MOECC) legislation as well as evaluating conformance
with ministry drinking water policies and guidelines during the inspection period. The
ministry utilizes a comprehensive, multi-barrier approach in the inspection of water systems
that focuses on the source, treatment, and distribution components as well as management
practices.
This drinking water system is subject to the legislative requirements of the Safe Drinking
Water Act, 2002 (SDWA) and regulations made therein, including Ontario Regulation 170/03,
"Drinking Water Systems" (O.Reg. 170/03). This inspection has been conducted pursuant to
Section 81 of the SDWA.
This inspection report does not suggest that all applicable legislation and regulations were
evaluated. It remains the responsibility of the owner to ensure compliance with all
applicable legislative and regulatory requirements.
Documents reviewed in association with this report included, but were not limited to:
1 - Ministry of the Environment Permit to Take Water (PTTW) # 6283-8QZM3N issued on February
09, 2012, expiry date June 30, 2022.
2 - Elgin Area Primary Water Supply System Drinking Water Works Permit # 048-201, Issue
Number 2, issued August 12, 2013.
3 - Elgin Area Primary Water Supply System Drinking Water Works Permit # Schedule C 048-201,
Issue Number 3 issued September 16, 2011.
4 - Elgin Area Primary Water Supply System Municipal Drinking Water Licence # 048-101, Issue
Number 3, issued November 06, 2014.
Other operational documents maintained by the owner/operating authority for the period June 01,
2014 through May 31, 2015 were also reviewed in conjunction with this compliance evaluation.
The Operating Authority for the above noted inspection period is the Ontario Clean Water Agency
(OCWA).
The Owner has indicated that the Elgin Area Primary Water Supply System falls under the
jurisdiction of both the Elgin - St. Thomas Health Unit and the Middlesex - London Health Unit.
SOURCE
*
The drinking water system management was aware of the potential sources of pollution or
activities that could impair source water quality as contained in the approved Assessment
Report.
The Operating Authority indicated that a copy of the Source Protection Plan can be found in the
control room at the Elgin Water Treatment Plant.
PERMIT TO TAKE WATER
*
The owner had a valid PTTW for all of the production sources.
The Permit to Take Water (PTTW) for this system is identified as PTTW #6283-8QZM3N which is
dated February 09, 2012. The permit identifies the surface water source (Lake Erie). This PTTW
cancels and replaces the previous permit #92-P-0048, issued on July 13, 1992. The updated
permit expires on June 30, 2022.
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Site #: 210000871
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Inspection Report
PERMIT TO TAKE WATER
*
The maximum water takings were in accordance with those allowed under the PTTW.
During the course of this inspection period, there were exceedances of the allowable flow rate as
stated in the current PTTW. The maximum flow rate listed in the PTTW is 63,194 litres per minute
(1,053 L/sec). The 2014 Summary Report indicates that the treated water instantaneous peak flow
rates exceeded the requirements of the MDWL on four (4) occasions. In all cases, the total daily
flow did not exceed the 91.0 ML/day plant rated capacity and exceedances were related to
maintenance activities.
*
The PTTW imposed additional monitoring or recording requirements and the owner had
complied with the conditions of the PTTW.
The Owner has kept records of all water takings. Data is captured by the SCADA system in an
electronic format. The PTTW requires the Permit Holder to maintain a record of all water takings.
This record includes the dates and times of water takings, and the total measured amounts of
water pumped per day for each day that water is taken under the authorization of this Permit. The
total amounts of water pumped shall be measured using a flow meter.
CAPACITY ASSESSMENT
*
There was sufficient monitoring of flow as required by the Permit and Licence or Approval
issued under Part V of the SDWA
The Owner and Operating Authority have ensured that a sufficient number of flow measuring
devices are installed, maintained and operated to measure the flow rate and volume of water being
taken from the source, conveyed through the treatment plant, and the volume and flow rate of
treated water supplied to the distribution system.
The Elgin Area Primary Water Supply System (EAPWSS) is equipped with two (2) north and south
raw water flow meters; four (4) filtered water flow meters; one (1) wash water flow meter; one (1)
service wash water flow meter; and two (2) east and west treated water (finished water) flow
meters to comply with the requirements of the Permit To Take Water (PTTW) and the Municipal
Drinking Water Licence (MDWL).
*
Flow measuring devices were calibrated or verified in accordance with the requirements of
a Permit and Licence or Approval issued under Part V of the SDWA.
Documents provided by the Operating Authority confirmed that all flow meters are calibrated
annually. A service technician verifies the accuracy of the raw and treated water flow meters
installed at the EAPWSS to ensure they are operated within a defined acceptable range. The
MDWL requires that all flow measuring devices must be checked and calibrated in accordance with
the manufacturer’s instructions. If the manufacturer’s instructions do not indicate how often to
check and calibrate a flow measuring device, the equipment must be checked and calibrated at
least once every year during which the drinking water system is in operation.
*
The owner was in compliance with the conditions associated with maximum flow rate or the
rated capacity conditions in the Permit and Licence or Approval issued under Part V of the
SDWA.
The current Municipal Drinking Water Licence specifies that the EAPWSS must not be operated in
a manner that exceeds the rated capacity of the treatment plant process (no greater than 91,000
m³/day). A review of the water taking records provided by the Operating Authority for the inspection
period found that raw and treated water flow rate exceedances of the water taking limits during the
inspection review period were short in duration and did not affect primary disinfection (CT).
Records of flow rate exceedances were made by the Operating Authority and can be found in the
2014 Compliance Report. The Report indicates that the EAPWSS was operating at a daily
average (treated water flow) of approximately forty seven percent (47%) of the rated capacity and a
maximum daily peak flow of approximately ninety percent (90%) of the plant capacity.
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Site #: 210000871
Page 8 of 24
Inspection Report
CAPACITY ASSESSMENT
*
Records of flows and any capacity exceedances were made in accordance with the Permit
and Licence or Approval issued under Part V of the SDWA.
The Operating Authority provided records of total flows and flow rates for raw and treated water.
Details of exceedances can be found in the 2014 Summary Report. The Operating Authority must
ensure that information regarding condition 2.3.4 of the current MDWL is also provided as required.
This information relates to the duration of time that lapses between the applicable rated capacity or
maximum flow rate first being exceeded and the next measurement where the applicable rated
capacity or maximum flow rate is no longer exceeded.
TREATMENT PROCESSES
*
The owner had ensured that all equipment was installed in accordance with Schedule A and
Schedule C of the Drinking Water Works Permit.
During the physical inspection, the equipment located at the EAPWSS was reviewed against the
description in the current Drinking Water Works Permit (DWWP). The equipment at the EAPWSS
was observed to be comparatively consistent with the descriptions in Schedule A and C of the
DWWP.
*
The owner had evidence that all required Director Notifications under Condition 2.4 of
Schedule B of the Permit were made during the inspection period.
The Owner submitted to the Ministry of Environment and Climate Change (MOECC) a Director
Notification Form for updated disinfection system at the low lift facility. The sodium hypochlorite
zebra mussel control system was replaced with a chlorine gas system. The new chlorine gas
system is now operational.
*
The owner/operating authority was in compliance with the requirement to prepare Form 1
documents as required by their Drinking Water Works Permit during the inspection period.
The Owner provided Form 1 documents with details of an infrastructure project involving the
replacement of 145m of existing 300mm asbestos cement watermain on Dexter Line east of the
Elgin Area Water treatment Plant. An existing line valve chamber was removed and a new line
valve was installed in the same location.
*
The owner/operating authority was in compliance with the requirement to prepare Form 2
documents as required by their Drinking Water Works Permit during the inspection period.
During the inspection period, a Form 2 was used by the Owner of the EAPWSS to document minor
modifications that included the addition of a new pH analyzer and sample pump in October 2014,
replacement of 2 particle counters and 4 chlorine analyzers in November 2014, a computer
hardware server upgrade in March 2015, and the replacement of travelling screen #1 at the low lift
pumping station in April 2015.
The Owner has developed a procedure for evaluating all modifications made at the EAPWSS to
determine if a Form 2 is required or the need for a Schedule C application. The Owner shall
ensure that all forms are kept for a minimum period of ten years and must be made available for
review by a Provincial Officer upon request.
*
Records indicated that the treatment equipment was operated in a manner that achieved the
design capabilities required under Ontario Regulation 170/03 or a Permit, Licence or
Approval issued under Part V of the SDWA at all times that water was being supplied to
consumers.
At the time of inspection, all equipment including online continuous analyzers, data loggers, duty
and stand-by metering pumps etc. were operational and connected to the water system. The
EAPWSS uses chlorine gas, chemically assisted filtration and UV disinfection for primary
disinfection of the raw water supply. A review of continuous monitoring data and log records
indicate that the water treatment system was operated in a manner to ensure the proper
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Inspection Report
TREATMENT PROCESSES
disinfection of the raw water supply. When the UV system is shut down, operators refer to CT
calculation sheets to ensure proper disinfection is taking place
The SCADA records were provided for the inspection period. The OIC is required to review
SCADA records within 72 hours to ensure the records are complete and that compliance
requirements are met for primary and secondary disinfection. It is recommended that the OIC note
in the facility logbook the period of review that was undertaken and note if SCADA data is missing.
Also, the alarm data is required to be reviewed.
*
Records confirmed that the water treatment equipment which provides chlorination or
chloramination for secondary disinfection purposes was operated so that at all times and all
locations in the distribution system the chlorine residual was never less than 0.05 mg/l free
or 0.25 mg/l combined.
There is chlorine analyzer at the EMPS valve house that monitors the chlorine residual in the
distribution system. Documentation reviewed for the inspection period, which includes log records
and SCADA records, indicate that secondary disinfection was maintained within the distribution
system and that the chlorine residual was within acceptable limits (>0.05 mg/L).
*
The primary disinfection equipment was equipped with alarms or shut-off mechanisms that
satisfied the standards described in Section 1-6 (1) of Schedule 1 of Ontario Regulation
170/03.
There is a UV disinfection unit for each of the four multi-media filters in the treatment plant. The
UV disinfection systems are equipped with an alarm and automatic shut down capability. The UV
units are programmed to shut down in the event of a system failure or if an operational parameter
is exceeded (i.e. UV dose < 40 mJ/cm²). The alarms are dispatched electronically and must be
acknowledged / acted upon by an operator.
*
The owner had evidence indicating that all chemicals and materials that come in contact
with water within the drinking water system met the AWWA and ANSI standards in
accordance with the Permit and Licence issued under Part V of the SDWA.
The Operating Authority provided records to indicate that water treatment chemicals used in the
drinking water system met the NSF / ANSI Standard 60 for water treatment chemicals.
*
Up-to-date plans for the drinking-water system were available in accordance with the Permit
and Licence issued under Part V of the SDWA.
The Operating Authority provided a copy of the up-to-date plans / drawings for the treatment and
distribution system components. These plans are located in the water treatment plant and are
readily available to staff for review.
*
The facility and equipment appeared to be maintained and in a fit state of repair.
During the physical inspection of the water system, it appeared that all components and facilities
were maintained as required. The Operating Authority uses a computerized maintenance program
to schedule maintenance task in the water treatment facility and the distribution system. The
Residue Management Facility (RMF) project was under construction at the water treatment plant at
the time of inspection.
*
The Operator-in-Charge had ensured that all equipment used in the processes was
monitored, inspected, and evaluated.
The OIC inspects, maintains and makes adjustments to treatment processes and this information is
recorded in the facility logbook and logsheets.
The OIC notes in the logbook the following: Lab Complete. This refers to the in house laboratory
analysis as required by the regulations and contractual requirements following the parameters
outlined in Form “EF-ADMIN-2050 – Operator’s Daily Lab Sheet” This is done every 4 hours. In
addition EA-PROC-2100 references Lab Analysis Procedures.
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TREATMENT PROCESSES
The OIC notes in the logbook the following: Round Complete. This refers to the physical
inspection that the OIC performs every 4 hours throughout the entire plant with the exclusion of the
low lift station. The plant walkthrough is to visually observe equipment, process conditions,
security and any other observed abnormalities. This is documented within EA-ADMIN-2000
Section 4.0 procedure.
The OIC notes in the logbook the following: Review Trends. This refers to the function performed
by the OIC at approximately 0:00 every day.
• Review and analysis of all collected Process Data Collection (PDC)
• Review and analysis of SCADA trending
• Review and entry of data for Watertrax
• Review and analysis of filter effluent turbidity
• This is documented within EA-ADMIN-2000 Section 4.0 procedure
• The above is completed every 24 hours
The OIC also creates Work Orders for equipment that needs attention / repairs.
*
Based on information provided by the owner/operator, it was not likely that contaminants
entering the floor drains would have come in contact with the source water or treated water.
The floor drains located in the water treatment plant presently lead to the plant drain that
discharges directly to Lake Erie and to the onsite septic system. Once the residue management
facility (RMF) is completed, most of the wastewater will be treated prior to being discharged to the
natural environment.
*
Measures were taken to ensure that pesticides were not applied, stored, or mixed in the
immediate vicinity of source(s), treatment, and storage facilities.
The Operating Authority indicated that pesticides are not used or stored in or around water related
facilities.
TREATMENT PROCESS MONITORING
*
Primary disinfection chlorine monitoring was being conducted at a location approved by
Permit, Licence or Approval issued under Part V of the SDWA, or at/near a location where
the intended CT had just been achieved.
The chlorine monitoring at the treatment plant is conducted after the treated water has passed
through the filters, UV disinfection units and clear well and reservoir. At this point, it is understood
that primary disinfection has taken place as long as the minimum chlorine residual identified in the
CT calculation has been met. A free chlorine analyzer is used for this purpose at Station 6 (final
treated water). Details of how primary disinfection is achieved at the treatment plant is contained in
the Operation and Maintenance Manual. The operators also use a CT calculator and chart to
determine if CT has been achieved for primary disinfection.
*
Operators were aware of the operational criteria necessary to achieve primary disinfection
within the drinking water system.
The Operating Authority indicated that operators receive training concerning the disinfection
requirements for the surface water source. This includes information on chemically assisted
filtration, disinfection with chlorine gas and UV, the use of tables and spreadsheets to determine
that the required CT has been met. Details of how primary disinfection is achieved at the treatment
plant is contained in the Operations and Maintenance Manual.
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Inspection Report
*
Continuous monitoring of each filter effluent line was being performed for turbidity.
Each filter effluent line has a functioning continuous turbidity analyzer which operates at all times
when water is being supplied / produced. Each filter must meet the performance criterion for
filtered water turbidity of less than or equal to 0.3 NTU in 95% of the measurements each month.
The Operating Authority uses SCADA data to determine if the monthly turbidity average meets this
requirement. During this inspection period, each of the four filters met the requirement for turbidity.
The Operating Authority has a contractual requirement with the Owner to meet 0.1 NTU in 95% of
the measurements each month.
*
The secondary disinfectant residual was measured as required for the distribution system.
Secondary disinfection is measured in the distribution system by operators on a regular basis.
Several chlorine residual samples are taken each week to ensure that secondary disinfection is
maintained throughout the distribution system. The SCADA system also monitors the chlorine
residual in the distribution system continuously (EMPS valve house). SCADA records are reviewed
by an operator on a daily basis.
*
Records confirmed that the maximum free chlorine residual in the distribution system was
less than 4.0 mg/L or that the combined chlorine residual was less than 3.0 mg/L.
*
Operators were examining continuous monitoring test results and they were examining the
results within 72 hours of the test.
Documentation provided at the time of inspection (logbooks), indicate that SCADA data was
reviewed within the prescribed 72 hour period. Typically, the operator reviews the trending / data
on a daily basis and records in the logbook that this task was performed.
*
Samples for chlorine residual analysis were tested using an acceptable portable device.
The operators use a Hach colorimeter to test the chlorine residual concentrations in the distribution
system. This device is also used to check the calibration of the continuous chlorine analyzers.
*
All continuous monitoring equipment utilized for sampling and testing required by O. Reg.
170/03, or approval or order, were equipped with alarms or shut-off mechanisms that
satisfied the standards described in Schedule 6.
There are several components (chlorine, turbidity and fluoride analyzers, UV disinfection units, flow
checkers) that are linked to the SCADA system and these components have the ability to trigger an
alarm to alert operators and shut down the water system to prevent improperly disinfected water or
water quality outside predetermined set points from entering the distribution system.
*
Continuous monitoring equipment that was being utilized to fulfill O. Reg. 170/03
requirements was performing tests for the parameters with at least the minimum frequency
specified in the Table in Schedule 6 of O. Reg. 170/03 and recording data with the
prescribed format.
The process analyzers continuously monitor the chlorine residual and turbidity in the treatment
plant and the SCADA system captures the data. There is also information on pH, temperature and
other parameters. Since more than one data point is captured every five minutes, the data
provided included a minimum, maximum and average for each five minutes of every day for each
parameter.
*
The owner and operating authority ensured that the primary disinfection equipment had a
recording device that continuously recorded the performance of the disinfection equipment.
The UV disinfection system is monitored continuously by the SCADA system when the system is in
operation for the required UV dose. If the UV system malfunctions or does not produce the
required UV dose, the system will generate an alarm.
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*
All continuous analysers were calibrated, maintained, and operated, in accordance with the
manufacturer's instructions or the regulation.
The Operating Authority provided records of calibrations for the inspection period and they include
logbook records, work orders and certificates of calibration. Operators calibrate the chlorine
analyzers as per manufacturer specifications or as required during their daily checks and logbook
records are maintained of these calibrations. An instrument technician performs monthly / quarterly
calibration on instruments as per internal work orders. Also, a service technician performs
maintenance on the laboratory and hand held analyzers on a yearly basis and a certificate of
calibration is generated for each instrument.
PROCESS WASTEWATER
*
The process wastewater and residual solids/sludges were being treated, handled and
disposed of in accordance with the design requirements approved under the Permit and
Licence or Approval issued under Part V of the SDWA.
Presently, all sludge produced in the water treatment process is directed to the plant drain for direct
discharge to Lake Erie. A new Residue Management Facility (RMF) is in the process of being
commissioned and this facility will manage the filter backwash wastewater and plant process waste
streams. The RMF will separate the process waste streams into effluent for lake discharge and
solids for disposal to a landfill.
DISTRIBUTION SYSTEM
*
The owner had up-to-date documents describing the distribution components as required.
Updates for the distribution system will be performed regarding the asbestos pipe replacement
project and a Form 1 has been submitted by the Owner.
*
There is a backflow prevention program, policy and/or bylaw in place.
Documents were provided that indicates that the Operating Authority conducts yearly checks on all
backflow prevention devices in all water related facilities.
*
The owner had a program or maintained a schedule for routine cleanout, inspection and
maintenance of reservoirs and elevated storage tanks within the distribution system.
The Operating Authority indicated that in-ground reservoirs are inspected and cleaned every 5 to
10 years. The EMPS reservoirs were inspected in June 2013 with a report on file of the findings.
The treatment plant reservoir and clearwell were inspected in June 2013 with a report on file of the
findings.
*
Existing parts of the distribution system that were taken out of service for inspection, repair
or other activities that may lead to contamination, and all new parts of the distribution
system that came in contact with drinking water, were not disinfected in accordance with
Schedule B, Condition 2.3 of the Drinking Water Works Permit.
The Owner and Operating Authority are required to follow procedures for the disinfection of water
system components as required by the current DWWP, section 2.3. For this inspection review,
documents were requested and provided from the Operating Authority for work performed in the
water treatment plant and the distribution system. Tasks included valve replacements, filter
maintenance, service water line replacement, watermain replacement and other minor
maintenance items.
There was a section of watermain replaced and the work involved the replacement of a section of
asbestos cement (AC) watermain. For this watermain installation, the Owner provided
bacteriological sample results and documentation regarding the disinfection procedure used that
included log records for all work performed. The Operating Authority had an Standard Operating
Procedure (SOP) for the project. Records reviewed included record of disinfection, record of
sampling, record of hydrostatic pressure test, record of testing backflow prevention devices,
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Inspection Report
DISTRIBUTION SYSTEM
consent letter from the MOE for discharge of water, and field notes. The AWWA C651-05
disinfection procedure requires the chlorination of the watermain for a 24 hour period and the
chlorine residual is to be tested at the beginning of the disinfection procedure and at the end.
There is a minimum chlorine residual to be met at the beginning and end of the 24 hour disinfection
process. Log records provided indicate that the chlorine residual at the start of the disinfection
process was greater than 50.0 mg/L of free chlorine and it was measured using test strips. The
chlorine residual was not measured at the end of the 24 hour period and the chlorine residual was
tested 3 days later with a chlorine residual of 8.8 mg/L. The minimum chlorine residual required at
the end of the 24 hour disinfection process is 10.0 mg/L. All other items were in compliance with
the disinfection procedure.
*
Records confirmed that disinfectant residuals were routinely checked at the extremities and
"dead ends" of the distribution system.
There is a chlorine analyzer at the EMPS monitoring the chlorine residual in the distribution
system.
*
A program was in place for inspecting and exercising valves.
The Operating Authority has a maintenance schedule for all components at the treatment plant and
in the distribution system. Documents indicate that gate valves are exercised on a regular basis by
operators.
*
There was a program in place for inspecting and operating hydrants.
The Operating Authority indicated that there are 3 hydrants on site at the water treatment plant and
3 hydrants on site at the EMPS.
*
There was a by-law or policy in place limiting access to hydrants.
The Owner indicated that there is a policy for the use of fire hydrants and it is restricted to
emergency use only.
*
The owner has undertaken efforts to identify, quantify and reduce sources of apparent water
loss.
The Owner and Operating Authority are undertaking efforts to identify leaks in the water system
through tracking flows in the water treatment plant and identifying leak in chambers along the
transmission main.
*
The distribution system pressure was monitored to alert the operator of conditions which
may have lead to loss of pressure below the value under which the system is designed to
operate.
The SCADA system monitors distribution system pressure from the water treatment plant to the
EMPS. Operators monitor parameters such as chlorine residual, pressure and flow at all times
from the control room at the water treatment plant. There are a number of pressure transmitters
located at different points in the system.
*
Based on the records available the owner was able to maintain proper pressures in the
distribution system.
Records reviewed for this inspection period include SCADA records and consumer complaints.
There were no complaints of low pressure from the receiving municipalities. There were scheduled
maintenance events that affected pressure in the distribution system and there were no watermain
breaks during the course of this inspection period.
*
The donor had provided an Annual Report to the receiver stand alone distribution system(s)
connected to this system.
The Elgin Area Primary Water Supply System provides a copy of their Annual Report to all water
systems that receive water. The Annual Report is sent by email to all receiver systems. The
Annual Report can also be found on the municipal web site.
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Inspection Report
OPERATIONS MANUALS
*
Operators and maintenance personnel had ready access to operations and maintenance
manuals.
The Operations and Maintenance Manual is available to all operators at the Elgin Water Treatment
Plant in the control room.
*
The operations and maintenance manuals contained plans, drawings and process
descriptions sufficient for the safe and efficient operation of the system.
The Operation and Maintenance Manual for the Elgin Area Primary Water Supply System is dated
May 31, 2010. A copy of this manual can be found in the control room at the water treatment plant.
The manual was updated for the new 900 mm primary transmission main in October 2012. This
section of the manual contains drawings, equipment specifications, overview of the system,
specific operational and maintenance sections. The manual was updated for the pH adjustment
system, including both the CO2 and sodium hydroxide systems in February 2013. This section of
the manual contains drawings, equipment specifications, overview of the system, specific
operational and maintenance sections. The manual will need to be updated to include details of
the RMF facility.
*
The operations and maintenance manuals did meet the requirements of the Permit and
Licence or Approval issued under Part V of the SDWA.
The Elgin Area Primary Water Supply System Operations Manual meets the requirements
stipulated in the current Municipal Drinking Water Licence, section 16.0.
LOGBOOKS
*
Logs for the drinking water subsystem(s) contained the required information.
Information for the drinking water system is contained in logbooks and logsheets. Log entries
include information relating to operators (OIC and ORO), time of activities, sampling, calibrations,
process adjustments, treatment chemicals, source, data records, alarm responses and
maintenance procedures.
*
Logbook entries were made in chronological order.
*
The record system allowed the reader to unambiguously identify the person who made the
logbook entry.
*
Entries in the logbook were made only by appropriate and authorized personnel.
Only certified operators made logbook and logsheet entries.
*
Records or other record keeping mechanisms confirmed that operational testing not
performed by continuous monitoring equipment was being done by a certified operator,
water quality analyst, or person who suffices the requirements of O. Reg. 170/03 7-5.
Only certified operators perform drinking water tests in the drinking water system.
*
For every required operational test and every required sample, a record was made of the
date, time, location, name of the person conducting the test and result of the test.
A review of Chain of Custody forms and Certificates of Analysis related to regulated water samples
indicate that the required information is being recorded by operators.
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LOGBOOKS
*
The operator-in-charge ensured that records were maintained of all adjustments made to
the processes within his or her responsibility.
The operators-in-charge (OIC) input data into logbooks and logsheets concerning observations,
adjustments and maintenance performed on the drinking water system.
*
Logs or other record keeping mechanisms were available for at least five (5) years.
The Operating Authority indicated that records are kept for an extended period of time.
CONTINGENCY/EMERGENCY PLANNING
*
Spill containment was provided for process chemicals and/or standby power generator fuel.
There are flood alarms in containment systems for water treatment chemical. All water treatment
chemicals and fuels systems have secondary containment. There is continuous monitoring of the
inground fuel tank at the water treatment plant and there is a pressure monitor for the above
ground fuel tank at the EMPS and both tanks are alarmed to notify an operator.
*
Clean-up equipment and materials were in place for the clean up of spills.
There are a number of specific spill kits located throughout the water treatment plant. The spill kits
are checked on a regular basis.
*
Standby power generators were tested under normal load conditions.
There are generators at the Elgin Water Treatment Plant and at the EMPS and these generators
are tested under load on a monthly basis by operators. Log records are kept of this maintenance
activity.
SECURITY
*
All storage facilities were completely covered and secure.
There are water storage facilities at the water treatment plant and in the distribution system and
they consist of subsurface reservoirs. During the physical inspection, reservoir hatches were
inspected and they appeared to be properly sealed to prevent contamination and alarmed to
prevent intrusion. The Operating Authority indicated that operators perform weekly security checks
and hatches and seals are checked annually.
*
Air vents and overflows associated with reservoirs and elevated storage structures were
equipped with screens.
During the physical inspection, air vents associated with the subsurface reservoirs were checked
and they were equipped with screens. The Operating Authority has indicated that the air vent
screens are checked annually.
*
The owner had provided security measures to protect components of the drinking-water
system.
At the time of inspection, the EAPWSS facilities were securely locked. Entrance doors at all the
buildings have intrusion alarms which are monitored via the SCADA system at the main plant.
Security measures also include lockable access gates and "No Trespassing" signs. Operators
typically visit the remote facilities on a regular basis in order to ensure that the system integrity has
not been compromised. The main treatment facility has operational staff working 24 hours per day
and is monitored by a camera surveillance system.
CONSUMER RELATIONS
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CONSUMER RELATIONS
*
Water conservation was being practiced by the owner or operating authority.
The Elgin Area Primary Water Supply System Water Conservation Measures states that "water use
within the Elgin Area Water Treatment Plant is monitored monthly. Water loss is calculated each
month by comparing the volumes of raw water entering the plant, treated water leaving the plant,
process water used within the plant (eg. backwash water, service water) and billed volume to
customers. The volume of unaccounted for water is tracked every month in order to monitor the
effectiveness of implementing water efficient processes and practices.
Process lost water and non-revenue water are two of the Key Performance Indicators (KPIs)
identified for the EAPWSS. These KPIs are monitored and reported to the Elgin Water Board on a
quarterly basis."
*
Required documents were available free-of-charge during normal business hours at a
location accessible to the public.
Information related to water quality is available at the Elgin Water Treatment Plant during normal
business hours. Information can also be found on the municipal web site.
*
The owner did take effective steps to advise users of the water system of the availability of
Annual Reports, including posting a copy on a web site, if applicable.
The Operating Authority indicated that it is the responsibility of each receiving municipality to
advise consumers of the availability of Annual reports.
CERTIFICATION AND TRAINING
*
The overall responsible operator had been designated for each subsystem.
The Elgin Area Primary Water Supply System is classed as a Water Treatment Subsystem Class 4
and a Water Distribution Subsystem Class 3. At the time of inspection, the designated (and
backup) ORO possessed an operator certificate that was equal or greater than the classification
level of the treatment plant and distribution system.
*
Operators in charge had been designated for all subsystems which comprised the drinkingwater system.
The Owner and Operating Authority must ensure that one or more operators are designated as
operator-in-charge (OIC) for each day that the facility is in operation. An OIC can be any operator
with an applicable certificate to the type of operated subsystem. An operator-in-training (OIT)
cannot be designated as an OIC. Any log entries made by the OIT must be approved by the OIC
and clearly documented in the log at the time of entry. The Operating Authority indicated that there
are a number of operators that can act as OIC.
*
All operators possessed the required certification.
All operators working on the Elgin Area Primary Water Supply System have the required
certification for this type of water system.
*
Only certified operators made adjustments to the treatment equipment.
The Operating Authority indicated that at the Elgin Water treatment Plant, only certified operators
make adjustments to the various treatment equipment.
*
Operator certificates or water quality analyst certificates were displayed in a conspicuous
location at the workplace or at the premises from which the subsystem was managed.
Operator certificates are displayed at the Elgin Water Treatment Plant.
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Inspection Report
CERTIFICATION AND TRAINING
*
The classification certificates of the subsystems were conspicuously displayed at the
workplace or at premises from which the subsystem was managed.
Plant and distribution system classification certificates are displayed at the Elgin Water Treatment
Plant.
*
An adequately licenced operator was designated to act in place of the overall responsible
operator when the overall responsible operator was unable to act.
During absences, the ORO assigns a back-up ORO to oversee the drinking water system and
these operators have the appropriate certificates to act as ORO.
*
The owner/operating authority was aware of the operator training and record keeping
requirements, and they were taking reasonable steps to ensure that all operators receive
the required training.
The Operating Authority is aware of the operator training requirements and a record is kept for
each operator's training activities.
WATER QUALITY MONITORING
*
All microbiological water quality monitoring requirements for raw water samples were being
met.
Raw water samples are being taken from a pre-determined site and analyzed on a weekly basis.
On average, there are 2 raw bacteriological samples taken at the water treatment plant every
week. The Operating Authority must ensure that the procedure for taking raw bacteriological
samples is followed so that chlorine is not present in the raw sample.
*
All microbiological water quality monitoring requirements for distribution samples were
being met.
Distribution water samples are being taken from pre-determined sites and analyzed on a weekly
basis. On average, there are 3 bacteriological samples taken each week. It was also identified
that several bacteriological samples that were delivered to the laboratory were above the
recommended temperature range of 4.0 to 10.0 degrees Celsius. It is recommended that the
Operating Authority review its sample handling and shipping procedures for bacteriological
samples.
*
All microbiological water quality monitoring requirements for treated samples were being
met.
Treated water samples are being taken from the water treatment plant and analyzed on a weekly
basis. On average, there are 7 bacteriological samples taken each week.
*
All inorganic water quality monitoring requirements prescribed by legislation were
conducted within the required frequency.
The requirement for taking inorganic sampling for a surface water source is once yearly. The
Operating Authority conducts inorganic sampling twice a year. Inorganic sampling was undertaken
on August 05, 2014 and January 13, 2015. All sample results show that the treated water is within
acceptable limits for the parameters listed in Schedule 23 of O. Reg. 170/03.
*
All organic water quality monitoring requirements prescribed by legislation were conducted
within the required frequency.
The requirement for taking organic sampling for a surface water source is once yearly. The
Operating Authority conducts organic sampling twice a year. The latest organic sampling was
undertaken on August 05, 2014 and January 13, 2015. All sample results show that the treated
water is within acceptable limits for the parameters listed in Schedule 24 of O. Reg. 170/03.
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Inspection Report
*
All trihalomethanes water quality monitoring requirements prescribed by legislation were
conducted within the required frequency.
Trihalomethane sampling is undertaken on treated water on a quarterly basis. All sample results
for this inspection period show that the treated water is within acceptable limits.
*
Trihalomethane samples were being collected from a point in the distribution system or
connected plumbing system that was likely to have an elevated potential for the formation
of trihalomethanes.
Trihalomethane samples are being taken at or near an end point in the distribution system.
*
All nitrate/nitrite water quality monitoring requirements prescribed by legislation were
conducted within the required frequency for the DWS.
Nitrate and nitrite sampling is undertaken on treated water on a quarterly basis. All sample results
for this inspection period show that the treated water is within acceptable limits.
*
All sodium water quality monitoring requirements prescribed by legislation were conducted
within the required frequency.
In accordance with O. Reg. 170/03, Schedule 13-8, the Owner / Operating Authority is required to
sample and test for sodium on the treated water every sixty (60) months. The Owner has indicated
that the EAPWSS has increased sodium sampling to quarterly in order to better understand the
seasonal variability of the naturally occurring sodium in the raw lake water. The most recent (April
09, 2015) sodium results are as follows: raw water - 10.1 mg/L, plant pre NaOH - 10.5 mg/L, plant
post NaOH - 16.9, primary surge tank - 16.6 mg/L, and EMPS valve house - 18.1 mg/L.
*
The required daily samples were being taken at the end of the fluoridation process.
The Elgin Area Primary Water Supply System adds fluoride to the treated water. The Operating
Authority monitors the continuous on-line fluoride analyzer for fluoride residual and this data is
reviewed daily by operators. At the time of inspection, the fluoride monitoring was being conducted
by the SCADA system and it had an active alarm system. In addition, the Operating Authority takes
two grab samples per day at the end of the fluoridation process and tests for fluoride. This
information is captured on the operator's Daily Lab sheet.
*
The owner ensured that water samples were taken at the prescribed location.
Raw, treated and distribution water samples are being taken from the appropriate locations.
*
The owner was conducting sampling beyond the minimum legislative requirements.
The Operating Authority is undertaking a number of additional samples as part of contractual
obligations with the Owner and also taking part of the Drinking Water Surveillance Program with
the MOECC. There Operating Authority is taking additional bacteriological, chemical, lead, THM,
sodium, fluoride, inorganic and organic sampling.
*
Records confirmed that chlorine residual tests were being conducted at the same time and
at the same location that microbiological samples were obtained.
All pertinent information related to bacteriological sampling is included on the Chain of Custody
form.
*
The drinking water system owner had submitted written notices to the Director that
identified the laboratories that were conducting tests for parameters required by legislation,
Order Certificate of Approval (OWRA) or a Permit, Licence or Approval issued under Part V
of the SDWA.
The Operating Authority has contracted the services of SGS Environmental Limited to analyse
drinking water samples.
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Inspection Report
*
Based on information provided by the owner/operator, samples were being taken and
handled in accordance with instructions provided by the drinking-water system's
laboratories.
During the review of documents, it was identified that several bacteriological samples that were
delivered to the laboratory were above the recommended temperature of 4.0 to 10.0 degrees
Celsius. There is a SOP in the Operations Manual that deals with the collection and handling of
drinking water samples.
*
The owner indicated that the required records are kept and will be kept for the required time
period.
The Operating Authority indicated that records related to the operation of the drinking water system
are kept for an extended period of time.
WATER QUALITY ASSESSMENT
*
The audit samples collected by the inspector met the applicable Ontario Drinking Water
Quality Standards and/or the aesthetic objectives or operation guidelines. The results of
the audit sampling are summarized as follows:
There were chemical samples taken from the treated water at the at the Elgin Water Treatment
Plant laboratory. There were no exceedances for the chemical parameters sampled at the water
treatment plant.
*
Records show that water sample results taken during the review period met the Ontario
Drinking Water Quality Standards (O. Reg. 169/03), with the following exceptions:
During the course of this inspection period, the Operating Authority took bacteriological samples on
a weekly basis, nitrite, nitrate, and trihalomethane samples on a quarterly basis. Schedule 23 and
24 samples (organic, inorganic) were taken in August 2014 and January 2015. As mentioned
previously, additional samples were taken by the Operating Authority. There was an adverse water
quality incident (AWQI) for fluoride that was reported by the Operating Authority. The exceedance
lasted 1.5 minutes and the maximum concentration was 1.558 mg/L (reportable limit 1.5 mg/L). All
drinking water sample results except fluoride as noted met the Ontario Drinking Water Quality
Standards.
REPORTING & CORRECTIVE ACTIONS
*
Corrective actions (as per Schedule 17) had been taken to address adverse conditions,
including any other steps that were directed by the Medical Officer of Health.
The Operating Authority reported an exceedance for fluoride at the water treatment plant and took
corrective actions by restoring the proper level of fluoride in the drinking water.
*
All required notifications of adverse water quality incidents were immediately provided as
per O. Reg. 170/03 16-6.
The Operating Authority provided verbal notifications to the proper authorities (SAC, MOH) the
same day the Operating Authority detected the adverse fluoride result.
*
All required written notices of adverse water quality incidents were provided as per O. Reg.
170/03 16-7.
The Operating Authority provided written notifications to the proper authorities within 24 hours of
the adverse fluoride result.
*
In instances where written notice of issue resolution was required by regulation, the notice
was provided as per O. Reg. 170/03 16-9.
The Notice of Resolution was provided by the Operating Authority shortly after the fluoride issue
was resolved and the fluoride in the drinking water was returned to an acceptable level. The notice
outlined the corrective actions taken by the Operating Authority.
on 18/08/2015 (dd/mm/yyyy)
Site #: 210000871
Page 20 of 24
Inspection Report
REPORTING & CORRECTIVE ACTIONS
*
Where required continuous monitoring equipment used for the monitoring of chlorine
residual and/or turbidity triggered an alarm or an automatic shut-off, a qualified person
responded in a timely manner and took appropriate actions.
Chlorine and turbidity are monitored by the SCADA system in the water treatment plant and in the
distribution system. When these processes reach a set point or value, the SCADA system
generates an alarm to notify operators who are on duty 24 hours a day. The Operating Authority
indicated that operators acknowledge alarms but the type of response will depend on the alarm
situation. Details of alarms responses are written in the facility logbook by operators.
*
When the primary disinfection equipment, other than that used for chlorination or
chloramination, has failed causing an alarm to sound or an automatic shut-off to occur, a
certified operator responded in a timely manner and took appropriate actions.
UV disinfection is monitored by the SCADA system in the water treatment plant. When this
process reaches a set point or value, the SCADA system generates an alarm to notify operators
who are on duty 24 hours a day. The Operating Authority indicated that operators acknowledge
alarms but the type of response will depend on the alarm situation. Details of alarms responses
are written in the facility logbook by operators.
*
The Annual Report containing the required information was prepared by February 28th of
the following year.
The Owner indicated that copies of the Annual Report were emailed and faxed to the municipal
water managers on February 13, 2015. The report is posted online for the public at:
http://www.watersupply.london.ca/Annual_Reports/2014/2014_ELGIN_Annual_Report_FINAL.pdf
*
Summary Reports for municipal council were completed on time, included the required
content, and were distributed in accordance with the regulatory requirements.
The Owner indicated that the Summary Report was e-mailed to all municipal water managers and
Elgin Board members on March 20, 2015 and hard copies were mailed out to municipal offices on
March 24, 2015. The Summary Report is posted online for the public at:
http://www.watersupply.london.ca/Compliance_Reports/2014/2014_Elgin_Compliance_Report_FIN
AL.pdf
*
All changes to the system registration information were provided within ten (10) days of the
change.
All information in the DWIS profile for the water system appears to be up-to-date.
*
The owner had evidence that all required notifications to all legal owners associated with
the Drinking Water System had been made during the inspection period.
The Owner indicated that several Board Members attended a workshop on the Standard of Care
and an information session was provided by Regional Water Supply.
on 18/08/2015 (dd/mm/yyyy)
Site #: 210000871
Page 21 of 24
Inspection Report
NON-COMPLIANCE WITH REGULATORY REQUIREMENTS AND ACTIONS REQUIRED
This section provides a summary of all non-compliance with regulatory requirements identified during the
inspection period, as well as actions required to address these issues. Further details pertaining to these
items can be found in the body of the inspection report.
1. Existing parts of the distribution system that were taken out of service for inspection, repair or
other activities that may lead to contamination, and all new parts of the distribution system that
came in contact with drinking water, were not disinfected in accordance with Schedule B,
Condition 2.3 of the Drinking Water Works Permit.
The Owner and Operating Authority are required to follow procedures for the disinfection of water system
components as required by the current DWWP, section 2.3. For this inspection review, documents were
requested and provided from the Operating Authority for work performed in the water treatment plant and
the distribution system. Tasks included valve replacements, filter maintenance, service water line
replacement, watermain replacement and other minor maintenance items.
There was a section of watermain replaced and the work involved the replacement of a section of
asbestos cement (AC) watermain. For this watermain installation, the Owner did provide bacteriological
sample results and documentation regarding the disinfection procedure used that included log records for
all work performed. The Operating Authority had an Standard Operating Procedure (SOP) for the project.
Records reviewed included record of disinfection, record of sampling, record of hydrostatic pressure test,
record of testing backflow prevention devices, consent letter from the MOE for discharge of water, and
field notes. The AWWA C651-05 disinfection procedure requires the chlorination of the watermain for a 24
hour period and the chlorine residual is to be tested at the beginning of the disinfection procedure and at
the end. There is a minimum chlorine residual to be met at the beginning and end of the 24 hour
disinfection process. Log records provided indicate that the chlorine residual at the start of the
disinfection process was greater than 50.0 mg/L of free chlorine and it was measured using test strips.
The chlorine residual was not measured at the end of the 24 hour period and the chlorine residual was
tested 3 days later with a chlorine residual of 8.8 mg/L. The minimum chlorine residual required at the
end of the 24 hour disinfection process is 10.0 mg/L. All other items were in compliance with the
disinfection procedure.
Action(s) Required:
The Owner and Operating Authority shall ensure that the AWWA disinfection procedures outlined in the
current Drinking Water Works Permit, Schedule B, section 2.0, subsection 2.3 are undertaken as required
for water system components. In particular, the disinfection process shall be followed as outlined in
AWWA Standard C61-05 - Disinfecting Water Mains. Compliance with this requirement shall be verified
during the next physical inspection.
on 18/08/2015 (dd/mm/yyyy)
Site #: 210000871
Page 22 of 24
Inspection Report
SUMMARY OF RECOMMENDATIONS AND BEST PRACTICE ISSUES
This section provides a summary of all recommendations and best practice issues identified during the
inspection period. Details pertaining to these items can be found in the body of the inspection report. In the
interest of continuous improvement in the interim, it is recommended that owners and operators develop an
awareness of the following issues and consider measures to address them.
Not Applicable
on 18/08/2015 (dd/mm/yyyy)
Site #: 210000871
Page 23 of 24
Appendix A
Key Reference and Guidance Material for Drinking Water Systems
March 2015
Key Reference and Guidance Material for
Municipal Residential Drinking Water Systems
Many useful materials are available to help you
operate your drinking water system. Below is
a list of key materials owners and operators of
municipal residential drinking water systems
frequently use.
To access these materials online click on their
titles in the table below or use your web browser
to search for their titles. Contact the Public
Information Centre if you need assistance or
have questions at 1-800-565-4923/416-325-4000 or
[email protected].
For more information on Ontario’s drinking water
visit www.ontario.ca/drinkingwater and email
[email protected] to subscribe to
drinking water news.
PUBLICATION TITLE
PUBLICATION NUMBER
Taking Care of Your Drinking Water: A Guide for Members of Municipal Councils
7889e01
FORMS: Drinking Water System Profile Information, Laboratory Services Notification,
Adverse Test Result Notification Form
7419e, 5387e, 4444e
Procedure for Disinfection of Drinking Water in Ontario
4448e01
Strategies for Minimizing the Disinfection Products Trihalomethanes and Haloacetic Acids
7152e
Total Trihalomethane (TTHM) Reporting Requirements Technical Bulletin (February 2011) 8215e
Filtration Processes Technical Bulletin
7467
Ultraviolet Disinfection Technical Bulletin
7685
Guide for Applying for Drinking Water Works Permit Amendments, Licence Amendments,
Licence Renewals and New System Applications
7014e01
Certification Guide for Operators and Water Quality Analysts
Guide to Drinking Water Operator Training Requirements
9802e
Taking Samples for the Community Lead Testing Program
6560e01
Community Sampling and Testing for Lead: Standard and Reduced Sampling and Eligibility
7423e
for Exemption
Guide: Requesting Regulatory Relief from Lead Sampling Requirements
6610
Drinking Water System Contact List
7128e
Technical Support Document for Ontario Drinking Water Quality Standards
4449e01
ontario.ca/drinkingwater
PIBS 8990b01
Mars 2015
Principaux guides et documents de référence
sur les réseaux résidentiels municipaux d’eau
potable
De nombreux documents utiles peuvent vous
aider à exploiter votre réseau d’eau potable. Vous
trouverez ci-après une liste de documents que les
propriétaires et exploitants de réseaux résidentiels
municipaux d’eau potable utilisent fréquemment.
Pour accéder à ces documents en ligne, cliquez
sur leur titre dans le tableau ci-dessous ou faites
une recherche à l’aide de votre navigateur Web.
Communiquez avec le Centre d’information au
public au 1 800 565-4923 ou au 416 325-4000, ou
encore à [email protected] si vous avez
des questions ou besoin d’aide.
Pour plus de renseignements sur l’eau potable
en Ontario, consultez le site www.ontario.ca/
eaupotable ou envoyez un courriel à
[email protected] pour suivre
l’information sur l’eau potable.
TITRE DE LA PUBLICATION
NUMÉRO DE PUBLICATION
Prendre soin de votre eau potable – Un guide destiné aux membres des conseils municipaux
7889f01
Renseignements sur le profil du réseau d’eau potable, Avis de demande de services de laboratoire,
7419f, 5387f, 4444f
Formulaire de communication de résultats d’analyse insatisfaisants et du règlement des problèmes
Marche à suivre pour désinfecter l’eau potable en Ontario
4448f01
Strategies for Minimizing the Disinfection Products Thrihalomethanes and Haloacetic Acids (en
anglais seulement)
7152e
Total Trihalomethane (TTHM) Reporting Requirements: Technical Bulletin (février 2011) (en anglais
seulement)
8215e
Filtration Processes Technical Bulletin (en anglais seulement)
7467
Ultraviolet Disinfection Technical Bulletin (en anglais seulement)
7685
Guide de présentation d’une demande de modification du permis d’aménagement de station
de production d’eau potable, de modification du permis de réseau municipal d’eau potable, de
7014f01
renouvellement du permis de réseau municipal d’eau potable et de permis pour un nouveau réseau
Guide sur l’accréditation des exploitants de réseaux d’eau potable et des analystes de la qualité de
l’eau de réseaux d’eau potable
Guide sur les exigences relatives à la formation des exploitants de réseaux d’eau potable
9802f
Prélèvement d’échantillons dans le cadre du programme d’analyse de la teneur en plomb de l’eau
dans les collectivités
6560f01
Échantillonnage et analyse du plomb dans les collectivités : échantillonnage normalisé ou réduit et
admissibilité à l’exemption
7423f
Guide: Requesting Regulatory Relief from Lead Sampling Requirements (en anglais seulement)
6610
Liste des personnes-ressources du réseau d’eau potable
7128f
Document d’aide technique pour les normes, directives et objectifs associés à la qualité de l’eau
potable en Ontario
4449f01
ontario.ca/eaupotable
PIBS 8990b01
Appendix B
MOECC Audit Sample Results
Login:
Ontario Ministry of the Environment and Climate Change
Laboratory Services Branch - 125 Resources Road
Etobicoke, Ontario M9P 3V6
FINAL REPORT(manager4)
Print Date: Aug. 10, 2015 03:15 PM By REPORTADMIN
C220787
Program Code 130074301
Program:
Study:
Project:
Activity:
Organization:
**** FINAL ****
MOE OPERATIONS DIVISION
WATER, COMMUNAL
SOUTHWESTERN REG. - LONDON DIS
WTP MUNIC INSPECT/ADVERS NOTIF
LONDON DISTRICT OFFICE (SWIP)
Org. Id: 4350
Mail this copy to :
PLANTE, ROLAND
MOE - SAFE DRINKING WATER BRANCH
3232 WHITE OAK ROAD, 3RD FLOOR
LONDON,ONT
N6E 1L8
Final reports to :
PLANTE, ROLAND
Approved for release by :
Telephone : 416-235-5863
Telephone : 416-235-5850
Inquiries to : TERESA SWITZER
PETER DROUIN
LOGIN DESCRIPTION: 210000871 ELGIN AREA PRIMARY WATER SUPPLY SYSTEM PLANTE,ROLAND 519-873-5022
The results relate only to items tested.
To provide customer service feedback on this report and/or other services provided by LaSB, please contact the LaSB HelpDesk at 416-235-6030 or the Customer Service Manager at 416-235-5831
This report contains confidential information intended only for the person(s) to whom it is addressed. Any unauthorized disclosure, copying, other distribution of this report, or taking any action on its content is strictly
prohibited. If you have received this report in error, please contact the LaSB HelpDesk at 416-235-6030 or the Customer Service Manager at 416-235-5831
Page 1 of 10
C220787
Login:
Field Id
RPJUNE2401
Station ID
2100008717405
Sample Location Description
TREATED
Sample ID
C220787-0001
Sample Comment Description
MOE*LIMS Products Requested:
WD
E3060B
HG3060
WD
E3172A
F3172
WD
E3364A
DISNUT3364
WD
E3473
MET3473
WD
E3501
CAPH3501
UTM:
Zone
Easting
Northing
230
486735
4724625
Collection
Method
GPS
WD
WD
WD
WD
WD
E3119A
E3196A
E3400A
E3480
E3502
Sampling
Date
Time
24 JUN 2015 13:15
WD
WD
WD
WD
WD
CPA3119
IBC3196
OCS3400
PAH3480
OPS3502
Accuracy
Map Datum (metres)
NAD83
11-20M
Page 2 of 10
Zone
5
E3144B
E3274A
E3435
E3500
E3503
**** FINAL ****
Sampler
Information
VOL3144
LIC3274
TRI3435
GLY3500
QUAT3503
Login:
C220787
Field ID:
Sample ID:
MOE*LIMS ID:
Station ID:
Collect Date:
Sample Location Description:
RP-JUNE24-01
C220787-0001
2015WD25-00087
2100008717405
24 JUN 2015
TREATED
Sample Comments Description:
Listid
Parmname
3060L1 Mercury
3119L1 2,4-dichlorophenol
2,4,6-trichlorophenol
Dicamba
2,3,4,6-tetrachlorophenol
MCPP,2-4Cl2MePhenoxy-PropAcid
MCPA,4Cl2MePhenoxy-AceticAcid
2,4-D-propionic acid
Bromoxynil
2,4-D
2,3,4,5-tetrachlorophenol
Pentachlorophenol
Silvex
MCPB,4Cl2MePhenoxy-ButyricAcid
2,4,5-T
2,4-DB
Dinoseb
Picloram
Diclofop-methyl
3144L1 Chloroethene
1,1-dichloroethene
Dichloromethane
Tert-butyl methyl ether
trans-1,2-dichloroethene
Diisopropylether
1,1-dichloroethane
cis-1,2-dichloroethene
Chloroform
1,1,1-trichloroethane
Carbon tetrachloride
1,2-dichloroethane
Benzene
Trichloroethene
1,2-dichloropropane
Bromodichloromethane
Dichloroacetonitrile
Value
.02
.1
.05
.05
.05
.05
.05
.05
.05
.05
.05
.05
.05
.05
.05
.1
.05
.05
.05
.05
.05
.05
.05
.2
.05
.05
.05
.05
.05
6.1
.05
.2
.05
.05
.05
.05
3.4
0.5
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
Qual
Rmk1
Rmk2
<=W
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<T
Page 3 of 10
**** FINAL ****
Login:
C220787
Field ID:
Sample ID:
MOE*LIMS ID:
Station ID:
Collect Date:
RP-JUNE24-01
C220787-0001
2015WD25-00087
2100008717405
24 JUN 2015
TREATED
Parmname
3144L1 cis-1,3-dichloropropene
Toluene
trans-1,3-dichloropropene
1,1,2-trichloroethane
Tetrachloroethene
Dibromochloromethane
1,2-dibromoethane
Chlorobenzene
Ethylbenzene
m- and p-xylene
o-xylene
Styrene
Bromoform
1,1,2,2-tetrachloroethane
1,3-dichlorobenzene
1,4-dichlorobenzene
1,2-dichlorobenzene
Trihalomethanes; total
3172L3 Fluoride
3364L1 Nitrogen; ammonia+ammonium
Nitrogen; nitrite
Nitrogen; nitrate+nitrite
Phosphorus; phosphate
3400L4 Hexachloroethane
1,3,5-trichlorobenzene
Hexachlorobutadiene
2,4,5-trichlorotoluene
2,3,6-trichlorotoluene
1,2,3,5-tetrachlorobenzene
2,6-dichlorobenzyl chloride
Pentachlorobenzene
Hexachlorobenzene
Heptachlor
Heptachlor epoxide
Value
.05
.05
.05
.1
.05
2.0
.1
.05
.05
.05
.05
0.30
.5
.2
.05
.05
.05
11.5
0.37
0.014
.001
0.747
0.0109
1
5
5
1
5
5
5
2
1
10
1
1
1
1
2
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
mg/L
mg/L
mg/L
mg/L
mg/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Qual
Rmk1
Rmk2
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<T
<=W
<=W
<=W
<=W
<=W
<T
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
Page 4 of 10
**** FINAL ****
Login:
C220787
Field ID:
Sample ID:
MOE*LIMS ID:
Station ID:
Collect Date:
RP-JUNE24-01
C220787-0001
2015WD25-00087
2100008717405
24 JUN 2015
TREATED
Parmname
3400L4 Heptachlor+Heptachlor Epoxide
Aldrin
Dieldrin
Aldrin+Dieldrin
Mirex
a-BHC (hexachlorocyclohexane)
Trifluralin
g-BHC (hexachlorocyclohexane)
a-Chlordane
g-Chlordane
Oxychlordane
Chlordane; total
pp-DDE
op-DDT
pp-DDT
pp-DDD
DDT; total
Methoxychlor
Endosulphan I
Endrin
Endosulphan II
Endosulphan sulphate
Octachlorostyrene
Toxaphene
PCB; total
Hexachlorocyclopentadiene
b-BHC (hexachlorocyclohexane)
Pyrethrin 1
Piperonyl Butoxide
Permethrin
Pyrethrin 2
3435L1 Cyanazine
Prometone
Propazine
Atrazine
Metribuzin
Prometryne
Atratone
Value
3
1
2
3
5
1
5
1
2
2
2
6
2
5
5
5
17
5
2
5
5
5
1
500
20
127.
2
100
100
100
100
100
50
50
50
100
20
50
Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Qual
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
Rmk1
Rmk2
AQH
AQH
AQL
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
Page 5 of 10
**** FINAL ****
Login:
C220787
Field ID:
Sample ID:
MOE*LIMS ID:
Station ID:
Collect Date:
RP-JUNE24-01
C220787-0001
2015WD25-00087
2100008717405
24 JUN 2015
TREATED
Parmname
3435L1 Ametryne
Simazine
Metolachlor
Alachlor
De-ethylated atrazine
De-ethylated simazine
Atrazine+de-alkylatedatrazine
Butachlor
Terbutryne
3473L1 Aluminum
Antimony
Arsenic
Barium
Beryllium
Boron
Cadmium
Chromium
Cobalt
Copper
Iron
Lead
Manganese
Molybdenum
Nickel
Selenium
Silver
Strontium
Thallium
Titanium
Uranium
Vanadium
Zinc
3480L1 Phenanthrene
Anthracene
Fluoranthene
Pyrene
Benzo(a)anthracene
Chrysene
Value
50
50
100
100
100
100
100
100
100
20.7
.8
.5
20.5
0
18.9
0
.1
.1
5.3
0
0
.1
1.1
.8
.2
0
152
0
.6
0
.2
1.5
10
10
10
10
20
10
Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
Qual
Rmk1
Rmk2
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
+/-3.40
+/-0.18
+/-0.27
+/-3.30
+/-0.25
+/-3.50
+/-0.13
+/-0.34
+/-0.18
+/-0.60
+/-18.42
+/-0.16
+/-0.24
+/-0.15
+/-0.32
+/-0.50
+/-0.17
+/-15.00
+/-0.11
+/-0.25
+/-0.18
+/-0.23
+/-0.49
<=W
<=W
<=W
<=W
<=W
<=W
Page 6 of 10
**** FINAL ****
Login:
C220787
Field ID:
Sample ID:
MOE*LIMS ID:
Station ID:
Collect Date:
RP-JUNE24-01
C220787-0001
2015WD25-00087
2100008717405
24 JUN 2015
TREATED
Parmname
3480L1 7,12-dimethylbenz(a)anthracene
Benzo(b)fluoranthene
Benzo(k)fluoranthene
Benzo(e)pyrene
Benzo(a)pyrene
Perylene
Indeno(1,2,3-c,d)pyrene
Dibenzo(a,h)anthracene
Benzo(g,h,i)perylene
Naphthalene
2-methylnaphthalene
1-methylnaphthalene
Acenaphthylene
Acenaphthene
Fluorene
3500L1 Glyphosate
Aminomethylphosphonic acid
Glufosinate
3501L1 Metoxuron
Monuron
Fluometuron
Chlorotoluron
Monolinuron
Difenoxuron
Metobromuron
Siduron
Linuron
Chlorobromuron
Neburon
Diuron
Aldicarb
Propoxur
Carbofuran
Bendiocarb
Carbaryl
Propham
Chlorpropham
Barban
Value
10
10
10
10
1
10
20
20
20
10
10
10
10
10
10
2
5
2
.5
.5
.5
.5
.5
.5
.5
.5
1
.5
1
.5
1
.5
.5
.5
.2
.5
1
5
Units
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
Qual
Rmk1
Rmk2
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<=W
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
Page 7 of 10
**** FINAL ****
Login:
C220787
Field ID:
Sample ID:
MOE*LIMS ID:
Station ID:
Collect Date:
RP-JUNE24-01
C220787-0001
2015WD25-00087
2100008717405
24 JUN 2015
TREATED
Parmname
3501L1 Eptam
Diallate
Butylate
Triallate
3502L1 Dimethoate
Mevinphos
Dichlorvos
Azinphos-methyl
Methylparathion
Malathion
Parathion
Diazinon
Phorate
Reldan
Ronnel
Terbufos
Temephos
Chlorpyrifos
Ethion
3503L1 Paraquat
Diquat
Chlormequat
Mepiquat
Difenzoquat
Cyperquat
Value
1
1
1
1
.5
.2
1
.1
.5
1
.2
.5
.1
1
.5
.2
.1
.1
.5
.1
.1
.02
.02
.02
.05
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
Qual
Rmk1
Rmk2
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<MDL
<=W
<=W
<=W
<=W
<=W
<=W
Page 8 of 10
**** FINAL ****
Login:
C220787
CODE
DESCRIPTION
<=W
<T
AQL
NDID
<MDL
AQH
NO MEASURABLE RESPONSE (ZERO): <REPORTED VALUE
A MEASURABLE TRACE AMOUNT:INTERPRET WITH CAUTION
RESULT BIASED LOW, QC OUT OF RANGE
NO DATA: INSUFFICIENT DATA TO PERFORM CALC.
LESS THAN METHOD DETECTION LIMIT
RESULT BIASED HIGH, QC OUT OF RANGE
**** FINAL ****
TEXT COMMENT
Product Completion
Sample ID
Matrix
Method
Product
C220787-0001
WD
E3060B
HG3060
6314
07-JUL-15
C220787-0001
WD
E3119A
CPA3119
3340
16-JUL-15
C220787-0001
WD
E3144B
VOL3144
4410
16-JUL-15
C220787-0001
WD
E3172A
F3172
5216
02-JUL-15
C220787-0001
WD
E3364A
DISNUT3364
5313
02-JUL-15
C220787-0001
WD
E3400A
OCS3400
3340
15-JUL-15
C220787-0001
WD
E3435
TRI3435
3340
05-AUG-15
C220787-0001
WD
E3473
MET3473
6410
17-JUL-15
C220787-0001
WD
E3480
PAH3480
3340
07-AUG-15
C220787-0001
WD
E3500
GLY3500
3341
08-JUL-15
08-JUL-15
Analytical Department
Completion Date
C220787-0001
WD
E3501
CAPH3501
3341
C220787-0001
WD
E3502
OPS3502
3341
08-JUL-15
C220787-0001
WD
E3503
QUAT3503
3341
30-JUN-15
LaSB Method Summary
Method
Method Description
Status
E3060B
THE DETERMINATION OF MERCURY IN WATER, LIQUID INDUSTRIAL WASTE AND
LANDFILL LEACHATE SAMPLES BY COLD VAPOUR-FLAMELESS ATOMIC
ABSORPTION SPECTROPHOTOMETRY (CV-FAAS)
THE DETERMINATION OF CHLOROPHENOLS (CPS) AND CHLOROPHENOXYACID
HERBICIDES (PAS) IN ENVIRONMENTAL MATRICES BY GAS CHROMATOGRAPHYMASS SPECTROMETRIC (GC-MS) ANALYSIS
THE DETERMINATION OF VOLATILE ORGANIC COMPOUNDS IN RAW AND TREATED
DRINKING WATER BY PURGE AND TRAP CAPILLARY GAS CHROMATOGRAPHYFLAME IONIZATION/MASS SELECTIVE (PT/GC-FID/MSD) DETECTION
ROUTINE
Method has been fully validated, is deemed fit for purpose and has the associated Uncertainty
information available upon request
ROUTINE
ROUTINE
E3119A
E3144B
Page 9 of 10
Status Description
Login:
E3172A
C220787
ROUTINE
E3196A
THE DETERMINATION OF FLUORIDE AND SULPHATE IN WATER, LEACHATES AND
EFFLUENTS BY AUTOMATED ION CHROMATOGRAPHY (IC)
LIMS CALCULATIONS-ION BALANCE
E3274A
LIMS CALCULATIONS-LANGELIERS INDEX
ROUTINE
E3364A
THE DETERMINATION OF AMMONIA NITROGEN, NITRITE NITROGEN, NITRITE PLUS
NITRATE NITROGEN AND REACTIVE ORTHO-PHOSPHATE IN SURFACE WATER,
DRINKING WATER AND PRECIPITATION BY COLOURIMETRY
THE DETERMINATION OF ORGANOCHLORINE PESTICIDES, CHLOROBENZENES
(CBS), AROCLORS AND TOXAPHENES IN WATER, EFFLUENT AND WASTEWATER
BY HEXANE MICROEXTRACTION AND GAS CHROMATOGRAPHY - MASS
SPECTROMETRY (GC-MS)
THE DETERMINATION OF TRIAZINE PESTICIDES IN WATER BY GAS
CHROMATOGRAPHY/MASS SPECTROMETRY
THE DETERMINATION OF TRACE METALS IN POTABLE WATERS BY DYNAMIC
REACTION CELL (DRC) INDUCTIVELY COUPLED PLASMA-MASS SPECTROMETRY
(ICP-MS)
THE DETERMINATION OF POLYCLYCLIC AROMATIC HYDROCARBONS IN WATER BY
GAS CHROMATOGRAPHY/MASS SPECTROMETRY
THE DETERMINATION OF GLYPHOSATE, GLUFOSINATE AND AMINOMETHYLPHOSPHONIC ACID IN WATER BY DIRECT AQUEOUS INJECTION LIQUID
CHROMATOGRAPHY- TANDEM MASS SPECTROMETRY (LC-MS/MS) ANALYSIS
THE DETERMINATION OF CARBAMATES AND PHENYL UREA IN WATER BY DIRECT
AQUEOUS INJECTION LIQUID CHROMATOGRAPHY -TANDEM MASS SPECTROMETRY
(LC-MS/MS) ANALYSIS
DETERMINATION OF ORGANOPHOSPHORUS PESTICIDES IN WATER BY DIRECT
AQUEOUS INJECTION-LCMSMS
THE DETERMINATION OF QUATERNARY AMMONIUM PESTICIDES (QUATS) IN WATER
BY DIRECT AQUEOUS INJECTION LIQUID CHROAMTOGRAPHY-TANDEM MASS
SPECTROMETRY (LC-MS/MS) ANALYSIS
ROUTINE
E3400A
E3435
E3473
E3480
E3500
E3501
E3502
E3503
ROUTINE
**** FINAL ****
ROUTINE
ROUTINE
ROUTINE
ROUTINE
ROUTINE
ROUTINE
ROUTINE
ROUTINE
*** End of Report ***
Page 10 of 10
Appendix C
Inspection Rating Record
April 2012
APPLICATION OF THE
RISK METHODOLOGY
USED FOR MEASURING MUNICIPAL RESIDENTIAL
DRINKING WATER SYSTEM INSPECTION RESULTS
The Ministry of the Environment (MOE) has a
rigorous and comprehensive inspection program
for municipal residential drinking water systems
(MRDWS). Its objective is to determine the compliance of MRDWS with requirements under the
Safe Drinking Water Act and associated regulations. It is the responsibility of the municipal residential drinking water system owner to ensure
their drinking water systems are in compliance
with all applicable legal requirements.
This document describes the risk rating methodology, which has been applied to the findings of the
Ministry’s MRDWS inspection results since fiscal
ontario.ca/drinkingwater
PIBS 6797e
year 2008-09. The primary goals of this assessment
are to encourage ongoing improvement of these systems and to establish a way to measure this progress.
MOE reviews the risk rating methodology every
three years.
The Ministry’s Municipal Residential Drinking
Water Inspection Protocol contains up to 14 inspection modules and consists of approximately
120 regulatory questions. Those protocol questions are also linked to definitive guidance that
ministry inspectors use when conducting MRDWS
inspections.
The questions address a wide range of regulatory
issues, from administrative procedures to drinking
water quality monitoring. The inspection protocol
also contains a number of non-regulatory questions.
A team of drinking water specialists in the ministry
assessed each of the inspection protocol regulatory
questions to determine the risk (not complying with
the regulation) to the delivery of safe drinking water.
This assessment was based on established provincial
risk assessment principles, with each question receiving a risk rating referred to as the Question Risk
Rating. Based on the number of areas where a system
is deemed to be non-compliant during the inspection,
and the significance of these areas to administrative,
environmental, and health consequences, a riskbased inspection rating is calculated by the ministry
for each drinking water system.
It is important to be aware that an inspection rating
less than 100 per cent does not mean the drinking
water from the system is unsafe. It shows areas
where a system’s operation can improve. The ministry
works with owners and operators of systems to make
sure they know what they need to do to achieve full
compliance.
The inspection rating reflects the inspection results
of the specific drinking water system for the reporting year. Since the methodology is applied consistently over a period of years, it serves as a comparative measure both provincially and in relation to the
individual system. Both the drinking water system
and the public are able to track the performance over
time, which encourages continuous improvement
and allows systems to identify specific areas requiring attention.
The ministry’s annual inspection program is an important aspect of our drinking water safety net. The
ministry and its partners share a common commitment to excellence and we continue to work toward
the goal of 100 per cent regulatory compliance.
2
APPLICATION OF RISK METHODOLOGY
Determining Potential to Compromise
the Delivery of Safe Water
The risk management approach used for MRDWS
is aligned with the Government of Ontario’s Risk
Management Framework. Risk management is a
systematic approach to identifying potential hazards,
understanding the likelihood and consequences of
the hazards, and taking steps to reduce their risk if
necessary and as appropriate.
The Risk Management Framework provides a formula to be used in the determination of risk:
RISK = LIKELIHOOD × CONSEQUENCE
(of the consequence)
Every regulatory question in the inspection protocol possesses a likelihood value (L) for an assigned
consequence value (C) as described in Table 1 and
Table 2.
TABLE 1:
Likelihood of Consequence Occurring
Likelihood Value
0% - 0.99% (Possible but Highly Unlikely)
L=0
1 – 10% (Unlikely)
L=1
11 – 49% (Possible)
L=2
50 – 89% (Likely)
L=3
90 – 100% (Almost Certain)
L=4
TABLE 2:
Consequence
Consequence Value
Medium Administrative Consequence
C=1
Major Administrative Consequence
C=2
Minor Environmental Consequence
C=3
Minor Health Consequence
C=4
Medium Environmental Consequence
C=5
Major Environmental Consequence
C=6
Medium Health Consequence
C=7
Major Health Consequence
C=8
The consequence values (0 through 8) are selected
to align with other risk-based programs and projects
currently under development or in use within the
ministry as outlined in Table 2.
The Question Risk Rating for each regulatory inspection question is derived from an evaluation of
every identified consequence and its corresponding likelihood of occurrence:
The Question Risk Rating quantifies the risk of
non-compliance of each question relative to the
others. Questions with higher values are those with
a potentially more significant impact on drinking
water safety and a higher likelihood of occurrence.
The highest possible value would be 32 (4×8) and the
lowest would be 0 (0×1).
Table 3 presents a sample question showing the
risk rating determination process.
• All levels of consequence are evaluated for
their potential to occur
• Greatest of all the combinations is selected.
TABLE 3:
Does the Operator in Charge ensure that the equipment and processes are monitored, inspected and evaluated?
Risk = Likelihood × Consequence
C=1
C=2
C=3
C=4
C=5
C=6
C=7
C=8
Medium
Administrative
Consequence
Major
Administrative
Consequence
Minor
Environmental
Consequence
Minor
Health
Consequence
Medium
Environmental
Consequence
Major
Environmental
Consequence
Medium
Health
Consequence
Major
Health
Consequence
L=4
(Almost
Certain)
L=1
(Unlikely
L=2
(Possible)
L=3
(Likely)
L=3
(Likely)
L=1
(Unlikely
L=3
(Likely)
L=2
(Possible)
R=4
R=2
R=6
R=12
R=15
R=6
R=21
R=16
Application of the Methodology to Inspection Results
Based on the results of a MRDWS inspection, an
overall inspection risk rating is calculated. During an
inspection, inspectors answer the questions related
to regulatory compliance and input their “yes”, “no”
or “not applicable” responses into the Ministry’s
Laboratory and Waterworks Inspection System
(LWIS) database. A “no” response indicates noncompliance. The maximum number of regulatory
questions asked by an inspector varies by: system
(i.e., distribution, stand-alone); type of inspection (i.e.,
focused, detailed); and source type (i.e., groundwater,
surface water).
The risk ratings of all non-compliant answers are
summed and divided by the sum of the risk ratings
of all questions asked (maximum question rating).
The resulting inspection risk rating (as a percentage)
is subtracted from 100 per cent to arrive at the final
inspection rating.
3
Application of the Methodology for Public Reporting
The individual MRDWS Total Inspection Ratings are
published with the ministry’s Chief Drinking Water
Inspector’s Annual Report.
Figure 1: Year Over Year Distribution of MRDWS Ratings
Figure 1 presents the distribution of MRDWS ratings for a sample of annual inspections. Individual
drinking water systems can compare against all the
other inspected facilities over a period of inspection
years.
700
512 538 572 586 585
344 406
349
600
281
233
NUMBER OF INSPECTION RATINGS
500
400
300
279
257
223
200
242
179
137 117 92 77 75
100
18 13 5 7
7
12 16 8 12 9
33 26 22 18 17
0
>80% to 85%
>50% to 80%
>90% to 95%
>85% to 90%
>95% to 100%
5% RATING BANDING BY YEAR
YEAR A
YEAR B
YEAR C
YEAR D
YEAR E
100% Rating
Reporting Results to MRDWS Owners/Operators
A summary of inspection findings for each system
is generated in the form of an Inspection Rating
Record (IRR). The findings are grouped into the
14 possible modules of the inspection protocol,
which would provide the system owner/operator
with information on the areas where they need to
improve. The 14 modules are:
1. Source
5. Process Wastewater
2. Permit to Take Water
6. Distribution System
9. Contingency and
Emergency Planning
12. Water Quality Monitoring
3. Capacity Assessment
7. Operations Manuals
10. Consumer Relations
13. Reporting, Notification
and Corrective Actions
4. Treatment Processes
8. Logbooks
11. Certification and Training
14. Other Inspection Findings
For further information, please visit www.ontario.ca/drinkingwater
4
Ministry of the Environment - Inspection Summary Rating Record (Reporting Year - 2015-2016)
DWS Name:
DWS Number:
DWS Owner:
Municipal Location:
210000871
Elgin Area Primary Water Supply System Joint Board Of Management
Central Elgin
Regulation:
Category:
Type Of Inspection:
Inspection Date:
Ministry Office:
O.REG 170/03
Large Municipal Residential System
Detailed
June 24, 2015
London District
Maximum Question Rating: 794
Inspection Module
Non-Compliance Rating
Permit To Take Water
0 / 30
Capacity Assessment
0 / 42
Treatment Processes
0 / 136
Process Wastewater
0 / 10
Distribution System
21 / 29
Operations Manuals
0 / 42
Logbooks
0 / 42
Consumer Relations
0/8
Certification and Training
0 / 57
Water Quality Monitoring
0 / 140
Reporting & Corrective Actions
0 / 113
Treatment Process Monitoring
0 / 145
TOTAL
21 / 794
Inspection Risk Rating 2.64%
FINAL INSPECTION RATING: 97.36%
Inspection Rating Record Generated On 18-AUG-15 (Inspection ID: 1-BZAPU).
R:\Public\DW\DW-08 Compliance\Shared Comp Data\Inspection Ratings 1516\Tom Clubb\1516 ELGIN AREA PRIMARY WATER SUPPLY SYSTEM 1-BZAPU.pdf
Ministry of the Environment - Detailed Inspection Rating Record (Reporting Year - 2015-2016)
DWS Name:
DWS Number:
DWS Owner:
Municipal Location:
210000871
Elgin Area Primary Water Supply System Joint Board Of Management
Central Elgin
Regulation:
Category:
Type Of Inspection:
Inspection Date:
Ministry Office:
O.REG 170/03
Large Municipal Residential System
Detailed
June 24, 2015
London District
Question
Rating
Non-compliant Question(s)
Distribution System
Are existing parts of the distribution system that are taken out of service for inspection, repair or other
activities that may lead to contamination, and all new parts of the distribution system that come in
contact with drinking water, disinfected in accordance with Schedule B, Condition 2.3 of the Drinking
Water Works Permit?
21
TOTAL QUESTION RATING
21
Maximum Question Rating: 794
Inspection Risk Rating 2.64%
FINAL INSPECTION RATING: 97.36%
Inspection Rating Record Generated On 18-AUG-15 (Inspection ID: 1-BZAPU).
R:\Public\DW\DW-08 Compliance\Shared Comp Data\Inspection Ratings 1516\Tom Clubb\1516 ELGIN AREA PRIMARY WATER SUPPLY SYSTEM 1-BZAPU.pdf

Elgin Area Primary Water Supply System Joint Board of

Transcrição

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