Ministry of the Environment

CITY OF WINDSOR DRINKING WATER SYSTEM Inspection Report

Site Number: Inspection Number: Date of Inspection: Inspected By:

220003421 1-BD1KC Sep 10, 2014 Paul Tersteege

Ministry of the Environment Drinking Water Inspection Report

Table of Contents Owner Information

2

Inspection Details

2

Description

2

Inspection Summary

4

Introduction

4

Source

4

Permit To Take Water

4

Capacity Assessment

4

Treatment Processes

5

Treatment Process Monitoring

8

Process Wastewater

10

Distribution System

10

Operations Manuals

12

Logbooks

12

Contingency/Emergency Planning

13

Security

14

Consumer Relations

15

Certification and Training

15

Water Quality Monitoring

17

Water Quality Assessment

19

Reporting & Corrective Actions

19

Non-Compliance with Regulatory Requirements and Actions Required

22

Summary of Best Practice Issues and Recommendations

23

Signatures

24

Appendices Appendix 1 - Inspection Rating Report Appendix 2 - Area Map and Simplified Process Flow Diagram Appendix 3 - Excerpts of Drinking Water System Dossier Appendix 4 - Summary of Reported Sample Results Appendix 5 - Drinking Water System Contacts

Ministry of the Environment Inspection Report

OWNER INFORMATION: Company Name: Street Number: Street Name:

WINDSOR UTILITIES COMMISSION 4545 RHODES Dr

City:

WINDSOR

Province:

ON

Postal Code:

N9A 5T7

INSPECTION DETAILS: Site Name:

CITY OF WINDSOR DRINKING WATER SYSTEM

Site Address:

3665 WYANDOTTE ST E WINDSOR CITY N8Y 1G4

MOE District/Area Office:

Windsor Area Office

Health Unit:

WINDSOR-ESSEX COUNTY HEALTH UNIT

Category:

Large Municipal Residential

Site Number:

220003421

Inspection Type:

Announced

Inspection Number:

1-BD1KC

Date of Inspection:

Sep 10, 2014

Date of Previous Inspection:

Aug 28, 2013

COMPONENTS DESCRIPTION Site (Name):

Windsor Drinking Water System

Comments: The following is an overview of Windsor’s drinking water system. The Drinking Water Works Permit issued by the Ministry includes additional description and technical specifications. Windsor’s drinking water system draws its supply from the Detroit River. Two plants located at 3665 Wyandotte Avenue East can treat the raw water. The two plants have a combined capacity of 349 million litres per day. The "New Water Treatment Plant" (aka the A.H. Weeks Treatment Plant) provides over three quarters of the system’s total treatment capacity. Due to falling water consumption, the “Old Water Treatment Plant” was taken out of active production in 2012; however, it was still being maintained for use in emergencies. (E.g., the Operating Authority placed the plant into service for several days in the third week of August 2014 to ensure its continued performance.) Water treatment processes at the plants include screening, pre-chlorination (e.g., as needed), pH adjustment, primary disinfection (i.e., ozonation), coagulation, flocculation, sedimentation, filtration and secondary disinfection (i.e., chlorination). (The Owner discontinued fluoridation on March 25, 2013.) [Equipment at the A.H. Weeks Treatment Plant treats wastewater (i.e., sedimentation sludge and backwash water) generated by the water treatment processes. The Owner ships the dewatered waste solids to a landfill for disposal, and discharges the treated wastewater to the Detroit River.] Report Generated for terstepa on 14/10/2014 (dd/mm/yyyy) Site #: 220003421 CITY OF WINDSOR DRINKING WATER SYSTEM Date of Inspection: 10/09/2014 (dd/mm/yyyy)

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Ministry of the Environment Inspection Report Treated water from the plants is routed to an on-site reservoir, and is subsequently pumped into the distribution system by two pumping stations (i.e., A.J. Brian and George Avenue) located nearby the water treatment plants. The Hanna Water Tower, approximately 3km southwest of the plants, provides pressure and flow control to the downtown core. The in-ground reservoir and booster pumping station (i.e., J.F. Cook), approximately 6.5km south of the plants, are used to maintain the chlorine residual, water pressure and flow to the southwest portion of the city. A network of trunk and distribution mains supplies both consumers in the City, and water systems in LaSalle and Tecumseh. The system also supplies four bulk water filling stations. A Supervisory Control and Data Acquisition (SCADA) system helps monitor and control the operation of various components in the system.

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Ministry of the Environment Inspection Report

INSPECTION SUMMARY INTRODUCTION *

The primary focus of this inspection is to confirm compliance with Ministry of the Environment legislation and control documents, as well as conformance with Ministry drinking water related policies for the inspection period. The Ministry is implementing a rigorous and comprehensive approach in the inspection of water systems that focuses on the source, treatment, and distribution components as well as water system 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. The Officer met with Enwin's Compliance Coordinator on September 10, 2014 to inspect the drinking water system. Enwin ("the Operating Authority") also provided a variety of data and documents to the Officer for review. 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 local Source Protection Committee, of which the Director of Water Production is a member, was responsible for the creation of an Assessment Report identifying existing and future landbased activities that could pose a significant threat to the drinking water source. (Copies of the Assessment Report, etc., are available via the Essex Region Source Protection Area's website, i.e., www.essexregionsourcewater.org)

PERMIT TO TAKE WATER *

The owner had a valid PTTW for all of the production sources. On January 14, 1997, the Ministry issued a permit to take water under Section 34 of the Ontario Water Resources Act. Permit 96-P-1058 identifies the Detroit River as the source. (Permit 96-P1058 does not include an expiry date.)

CAPACITY ASSESSMENT *

There was sufficient monitoring of flow as required by the Permit and Licence or Approval issued under Part V of the SDWA Condition 2.1 in Schedule C of the Licence explicitly requires monitoring and recording of flows into and out of the “treatment subsystem”, i.e., raw water flows into the plants, and treated water flows into the distribution system. Continuous monitoring equipment captures these measurements.

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Ministry of the Environment Inspection Report CAPACITY ASSESSMENT *

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. Section 3.0 in Schedule C of the Licence requires flow measuring devices to be checked and calibrated in accordance with the manufacturer’s instructions (or annually if the manufacture has not prescribed a calibration interval). The Operating Authority confirmed that flow monitoring equipment used to measure discharges to the distribution system (and boundary meters at points in their distribution system where they supply neighbouring municipalities) are calibrated annually.

*

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. Table 1 in Schedule C of the Licence indicates the maximum daily volume of water from the A.H. Weeks Plant to the distribution system shall not exceed 268 ML/day. The Licence does not include an instantaneous limit. The Officer examined total filter flow data from July1, 2013 to July 31, 2014. With the exceptions of peaks during summer months, flows were generally less than 60% the facility’s rated capacity. The maximum daily flow through the filters, equivalent to 76% of the rated capacity, occurred on July 18, 2014.

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. The Ministry expects all of the treatment equipment described in Schedule A of the Owner's Permit, as may be amended by alterations identified in Schedule C, to remain installed. The Officer did not note any unreported alterations in the water treatment plant. (As indicated in their 2013 Annual Reports, several changes were made in the distribution system.) Note: While the Operating Authority reported decommissioning their fluoridation equipment, usage of the term meant they had withdrawn the equipment from active service. The equipment is still present as the Operating Authority is considering repurposing this equipment.

*

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. Condition 2.4 in Schedule B of the Drinking Water Works Permit requires the Director to be notified of the completion of any alterations authorized through Schedule B or C of the Permit. The Ministry received notification in 2014 of the addition of a 5,700L tank for storing calcium thiosulfate. While some additional equipment was replaced as part of normal maintenance, no additional alterations to the treatment processes were identified.

*

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. While not specific to the treatment processes, the Ministry directs Officers to use this opportunity to discuss any alterations to the distribution system. Section 3.0 in Schedule B of Permits allows for watermain additions, modifications, replacements and extensions providing owners complete and retain a “Form 1 – Record of Watermains Authorized as a Future Alteration” verifying they have met the requirements listed in Conditions 3.1.1, and 3.1.2 through 3.1.6. The Operating Authority provided 28 completed forms documenting activities since the last inspection. The 2013 Annual and Summary Reports also speak to activities in the distribution including, - the completion of work on the Hanna Tower (e.g., structural repairs, exterior corrosion coating, addition of a new mixer to eliminate ice formation)

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Ministry of the Environment Inspection Report TREATMENT PROCESSES - the installation of 7 additional pressure monitoring stations in the distribution system, and flow control valves at the JF Cook booster station (i.e., as part of the ongoing development of a predictive control system for the high lift pumps) - the replacement of approximately 19.2 km of watermains and water services - the installation of 152 new hydrants, and the replacement of 112 existing hydrants - the replacement 4,858 consumer water meters, and - the installed a new bulk water filling station at Caron and Elliott. *

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. Section 4.0 in Schedule B of Permits allows for minor modifications to drinking water systems providing owners complete and retain a “Form 2 – Record of Minor Modifications or Replacements to the Drinking Water System” verifying they have met the requirements listed in Condition 4.3. The Operating Authority provided a copy of the Form 2 documenting their pressure/flow telemetry station installations.

*

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. The Officer did not note any concerns when cross-referencing unusual readings to remarks in the logbooks. Section 1-2(2) in Schedule 1 of O. Reg. 170/03 requires owners and operating authorities of raw water supplies to ensure their PRIMARY DISINFECTION equipment operates whenever the system supplies water. The system normally uses ozonation for primary disinfection, and chlorination for secondary disinfection. However, as indicated by the Permit, the system has maintained multiple chlorination points in order to use chlorination for both primary and secondary disinfection when it is necessary to service the ozonation system. The Owner's SCADA system continuously monitors the performance of their ozonation system – even when one or both ozone contactors are offline. As such, care must be taken when reviewing the disinfection data. For example, in early December 2013, operators took the ozone contactors offline for inspection and maintenance. Records indicated nine diffuser heads were replaced.

*

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. Section 1-5 in Schedule 1 of O. Reg. 170/03 requires the Municipality’s treatment facilities/equipment to be capable of providing a free chlorine residual of 0.2mg/L at all locations within the distribution system. Further, Section 1-2 requires the equipment to be operated so that the free chlorine residual is never less than 0.05mg/L. The Officer did not note any concerns based upon his review of grab sample results.

*

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. Where a system is not relying on chlorination or chloramination for disinfection, Section 1-6 in Schedule 1 of O. Reg. 170/03 requires the use of equipment with a feature that ensures that no water is directed to users of water if the disinfection equipment malfunctions, loses power or ceases to provide the appropriate level of disinfection. Alternatively, the system must have alarms, and the alarms must result in the prompt attention of a certified operator. Further, this section

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Ministry of the Environment Inspection Report TREATMENT PROCESSES requires owners of large municipal residential drinking water systems to have a recording device that continuously records the performance of the disinfection equipment. The system is continuously staffed by operators, and is equipped with a SCADA system that continuously monitors the performance of the primary disinfection system. The system has both audible onsite alarms and a paging system to summon operators. Lastly, the Operating Authority has provided operators radios and tablets. *

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. Per Section 31 of the Safe Drinking Water Act, the use and operation of municipal drinking water systems must comply with the applicable approval or licence. Per Section 14 in Schedule B of the Licence, all water treatment chemicals shall meet all applicable AWWA and ANSI standards. The Operating Authority confirmed process chemicals are certified to NSF/ANSI Standard 60. Note: Not all of the process chemicals are certified in the name of the party identified on the Operating Authority's bills, e.g., the NSF certification for the sodium hypochlorite consumed by the system is in the name of the parent company rather than in the name of the subsidiary company.

*

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 facility and equipment appeared to be maintained and in a fit state of repair. Per Section 11(1) of the Safe Drinking Water Act, owners and operating authorities are required to maintain municipal drinking water systems, including their treatment facilities/equipment, in a fit state of repair. Besides a visual scan during the inspection, the Officer reviewed applicable records and logs. Note: With respect to the Old Water Treatment Plant, only a portion of the plant is being maintained for use. E.g., per page 11 of the Permit, only six of the filters are allowed to operate.

*

The Operator-in-Charge had ensured that all equipment used in the processes was monitored, inspected, and evaluated. To ensure the treatment process equipment is performing appropriately, Section 26(2) of O. Reg. 128/04 requires operators-in-charge to monitor the equipment, and to document its operating status. Electronic monitoring systems may perform and record some checks; however, operating authorities typically prescribe a series of daily checks in their operations manuals. They also tend to provide logs and worksheets for operators to record their activities and the status of the equipment. The Operating Authority reported that they, - use a SCADA system to monitor the performance of the system, - prescribe a series of checks in their operations manual that operators are expected to record in their logs and worksheets, - make use of a computerized maintenance management system to produce work orders indicating when routine inspection and maintenance is required, and they - direct supervisory staff to verify the adequacy of the operators' entries.

*

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 Ministry recommends operators remain aware of where all the drains in their facilities discharge to such that they can be assured routine (e.g., cleaning) and abnormal (e.g., spills) events pose a negligible hazard. The Operating Authority advised their floor drains discharge to the municipal sewer.

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Ministry of the Environment Inspection Report TREATMENT PROCESSES *

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 Ministry recommends not mixing, storing or applying pesticides at or near water supplies or the treatment and storage components associated with drinking water systems. Besides their own activities, the Ministry recommends operators remain mindful of practices on adjacent lands that might pose a concern. The Operating Authority advised it does not apply, handle or store pesticide in or around the supply, treatment or storage components of their system. Further, the Operating Authority advised it is not aware of any concerns stemming from activities on neighboring properties.

TREATMENT PROCESS MONITORING *

Operators were aware of the operational criteria necessary to achieve primary disinfection within the drinking water system.

*

Continuous monitoring of each filter effluent line was being performed for turbidity. As required by Section 7-3(2) (b) in Schedule 7 of O. Reg. 170/03, sampling and testing for turbidity is carried out by continuous monitoring equipment on each filter effluent line.

*

The secondary disinfectant residual was measured as required for the distribution system. To satisfy Schedule 7 of O. Reg. 170/03, the Operating Authority has operators conduct weekday testing at numerous sample stations throughout the City.

*

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. The results of grab samples collected from distribution system were consistently below 1.5mg/L at every sample station in the distribution system. (While some of the continuous monitoring records in the facility occasionally indicated elevated results, these spikes appeared to be aberrant data generated during maintenance versus actual events.)

*

Operators were examining continuous monitoring test results and they were examining the results within 72 hours of the test. Where continuous monitoring equipment is used to fulfil chlorine or turbidity testing requirements, Section 6-5 in Schedule 6 of O. Reg. 170/03 requires an examination of results captured by continuous monitoring equipment within 72 hours of the tests. As the water treatment plant is continuously staffed by personnel, the performance of the system is subject to ongoing scrutiny. Further, the Operating Authority advised operators perform monthly reviews to confirm turbidity is maintained below 0.3 NTU in 95% of the measurements each month (i.e., per Section 3.4.1 of the Province’s Procedure for Disinfection).

*

Samples for chlorine residual analysis were tested using an acceptable portable device. With respect to testing chlorine residuals, Section 6-7(1) in Schedule 6 of O. Reg. 170/03 requires the use of an electronic direct readout colourimetric or amperometric analyzer, a continuous analyser, or an alternate device with proven accuracy, reliability and ease of use. Operators use Hach Pocket Colorimeters to conduct chlorine residual testing. Further, the drinking water system is equipped with continuous montitoring equipment.

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Ministry of the Environment Inspection Report TREATMENT PROCESS MONITORING *

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. Where continuous monitoring equipment is used to fulfil chlorine or turbidity testing requirements, Subsections 6-5(1) and 6-5(1.1)1 in Schedule 6 of O. Reg. 170/03 requires the use of alarms or interlocks. In the event of a malfunction, loss of power, etc., the intent of these provisions is to enable operators to take prompt and appropriate action to resolve the concern, or to automatically cause the flow of water to consumers to be stopped. Regarding chlorine and turbidity monitoring, the drinking water system uses alarms. (The system also includes numerous other alarms for additional parameters of concern.)

*

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. Where continuous monitoring equipment is used to fulfil chlorine or turbidity testing requirements, Section 6-5(1) in Schedule 6 of O. Reg. 170/03 prescribes minimum testing and recording intervals of 5 and 15 minutes respectively. Where monitoring equipment tests more frequently, the monitoring equipment may record the minimum, maximum, and the mean results for periods equal to the prescribed intervals. The Operating Authority reported the continuous monitoring equipment records results for these two parameters at 1-minute intervals. (To facilitate review, the Operating Authority provided this data in 5-minute aggregates.)

*

The owner and operating authority ensured that the primary disinfection equipment had a recording device that continuously recorded the performance of the disinfection equipment. Where large municipal residential systems do not use chlorine for primary disinfection, Section 1-6 in Schedule 1 of O. Reg. 170/03 requires the use of equipment to continuously record the performance of the disinfection equipment. Continuous monitoring equipment records a number of parameters associated with the ozone disinfection process, e.g., raw water flow, ozone concentration, ozone flow, log inactivation calculations, etc.

*

All continuous analysers were calibrated, maintained, and operated, in accordance with the manufacturer's instructions or the regulation. Where continuous monitoring equipment is used to fulfil chlorine or turbidity testing requirements, Section 6-5(1) in Schedule 6 of O. Reg. 170/03 requires owners to perform checks and calibrations in accordance with the manufacturer’s instructions, or if not indicated, as frequently as required to ensure the equipment remains with the following tolerances: Chlorine residual: ±5% or ±0.05 mg/L, whichever is greater Turbidity: ±0.1 NTU The Operating Authority advised their procedures and work order system directs operators to calibrate the analyzers three times per year.

Report Generated for terstepa on 14/10/2014 (dd/mm/yyyy) Site #: 220003421 CITY OF WINDSOR DRINKING WATER SYSTEM Date of Inspection: 10/09/2014 (dd/mm/yyyy)

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Ministry of the Environment Inspection Report 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. As described in Schedule A of the Drinking Water Works Permit, the wastewater treatment process makes use of chemically assisted settling, and a centrifuge, to separate solids from liquids discharged to the Detroit River. The solids are hauled offsite for disposal. (The Operating Authority did not report any changes to their wastewater treatment equipment or operations.)

*

The process wastewater discharge quality and discharge monitoring program complied requirements established in the Permit and Licence or Approval issued under Part V of the SDWA. With respect to monitoring, Condition 4.2 in Schedule C of the Licence requires the collection of samples from the discharge for testing the concentration of total suspended solids (TSS). The Operating Authority uses both continuous monitoring equipment, and weekly grab samples. The average results of the grab samples collected in 2013 was 14.1mg/L. The average of the results collected between January and July 2014 was significantly higher. The latter average appears to be skewed by an abnormal result (1,630mg/L) collected at the beginning of April. (In contrast, the recorded meter reading was 1.7)

DISTRIBUTION SYSTEM *

The owner had up-to-date documents describing the distribution components as required. Per Section 31 of the Safe Drinking Water Act, the alteration of municipal drinking water systems must comply with the applicable approval or permit which includes, where applicable, updating the document identified in "Table 1: Watermains" of Schedule A in the Permit (within one year of the substantial completion of additions, replacements or alterations). The Operating Authority advised an updated document, dated January 2014 was submitted along with the application to renew the Owner's Permit. Further, they advised that they have GIS personnel who update their mapping on an ongoing basis.

*

There is a backflow prevention program, policy and/or bylaw in place. The Commission passed By-Law #90 in 2008 to address the subject of cross connection and backflow prevention. Copies of the by-law can be downloaded from their website, i.e., www.wuc.on.ca/downloads/ByLaw_90.pdf The Operating Authority previously noted that any connection greater than 1 inch diameter had backflow prevention installed. It was also noted that the new by-law (By-Law#90) governs the installation of all new backflow preventer installations on industrial, commercial and institutional connections. Note: While there is a by-law in place, it is not accompanied by an active enforcement component.

*

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 advised they have a 10-year inspection cycle for their reservoirs. (Refurbishment of the Hanna Water Tower was completed in 2013.)

*

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 disinfected in accordance with Schedule B, Condition 2.3 of the Drinking Water Works Permit. Per Section 31 of the Safe Drinking Water Act, the establishment and alteration of municipal drinking water systems must comply with the Permit which includes the disinfection of the system components that are added, altered or repaired in accordance with an AWWA standard or an

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Ministry of the Environment Inspection Report DISTRIBUTION SYSTEM equivalent. Consequently, the Overall Responsible Operator should ensure operators and contractors record sufficient details to permit them to confirm compliance. Records screened by the Officer appeared to be satisfactory. Note: The Officer understands the Operating Authority is a member of a working group that has met regularly with the Director to discuss this subject. *

The owner had implemented a program for the flushing of watermains as per industry standards. The Ministry recommends municipalities ensure their watermains are flushed regularly to remove sediment build-up which can affect disinfectant residuals and the flow, color, odour and taste of the water. Industry standards (e.g., AWWA Standard G200-09) speak to a preventative approach that involves adopting written procedures that address routine flushing as well as flushing aimed at addressing localized problems. Operators should ideally have flushing procedures that identify locations, frequencies and duration. The Operating Authority advised they have a "Pipe Patrol", i.e., a crew of operators that flushes one third of the City's distribution system every year. Areas where repeated low residuals are noted are included in a separate "enhanced flushing program" which involves more frequent flushing until the problem has been resolved.

*

Records confirmed that disinfectant residuals were routinely checked at the extremities and "dead ends" of the distribution system. The Operating Authority advised that they have sample stations throughout the system that are checked when samples are collected as part of their microbiological monitoring program. Further, they noted that stations at their boundaries are checked twice a week.

*

A program was in place for inspecting and exercising valves. To ensure all stop valves will function when required, the Ministry recommends municipalities adopt a program for inspecting/exercising valves (e.g., per Section 4.2.5 of AWWA Standard G200-09). The Operating Authority advised they have a valve-exercising program that is separate from their flushing program. They target a minimum of 20% of their valves per year. They reported exercising 27% of their valves in 2013.

*

There was a program in place for inspecting and operating hydrants. The Ministry recommends a formal program (e.g., per Section 4.2.6 in AWWA Standard G200-09). The Operating Authority advised they have a hydrant flow testing, maintenance and winterization program that is separate from their flushing program. They reported that in 2013 they installed 152 new hydrants, and replaced 112 existing hydrants.

*

There was a by-law or policy in place limiting access to hydrants. The Ministry recommends owners implement measures to protect their water systems by limiting access to their hydrants. The Commission passed By-Law #88 in 2007 to address the subject of fire hydrants.. Copies of the by-law can be downloaded from their website, i.e., www.wuc.on.ca/downloads/ByLaw88_Fire_Hydrant.pdf

*

The owner has undertaken efforts to identify, quantify and reduce sources of apparent water loss. The Operating Authority assesses water losses on a monthly and on an annual basis by comparing the volume of water produced at the plant to the volume of water billed to consumers. Water losses average around 18%. To protect their distribution system infrastructure from breaks, the Operating Authority has installed a number of pressure sensors throughout the city as part of a predictive control system for the high lift pumps. They report the improved control over pressure in the distribution system has helped reduce watermain breaks.

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Ministry of the Environment Inspection Report DISTRIBUTION SYSTEM *

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. Besides pressure at their pumping station and water tower, the Owner has a network of pressure sensors within the distribution system. These sensors are tied into their SCADA system with instantaneous results being displayed over a map of the distribution system. Operators can also monitor various parameters at the water tower in the Town of Tecumseh (whom they supply with water).

*

The donor had provided an Annual Report to the receiver stand alone distribution system(s) connected to this system. Where systems supply all of the water for other drinking water systems, Section 11 of O. Reg. 170/03 requires donors to provide a copy of their Annual Reports to the owner of the receiving systems. The Operating Authority reports they provided an Annual Report to the receivers - a copy of which is posted on the Owner's website.

OPERATIONS MANUALS *

Operators and maintenance personnel had ready access to operations and maintenance manuals. Section 28 of O. Reg. 128/04 requires owners and operating authorities to ensure operators have ready access to comprehensive operations and maintenance manuals.

*

The operations and maintenance manuals contained plans, drawings and process descriptions sufficient for the safe and efficient operation of the system. Section 28 of O. Reg. 128/04 requires owners and operating authorities to ensure operators and maintenance personnel have ready access to comprehensive operations and maintenance manuals that contain plans, drawings and process descriptions sufficient for the safe and efficient operation of the system. As such, these documents should encompass all of the subsystems to which they apply, and they should include up-to-date descriptions and plan/drawings. Owing to the complexity of this system, the Operating Authority has numerous key documents and records available. Besides identifying these documents, the Operating Authority identified the review, revision and training schedule associated with them.

*

The operations and maintenance manuals did meet the requirements of the Permit and Licence or Approval issued under Part V of the SDWA. Per Section 31 of the Safe Drinking Water Act, the use and operation of municipal drinking water systems must comply with the applicable licence. Based upon information available to him, the Officer understands these requirements are being satisfied.

LOGBOOKS *

Logs for the drinking water subsystem(s) contained the required information. Pursuant to Section 27(5) of O. Reg. 128/04, operators appear to be documenting information regarding the system’s operation including the date and time, the names of the operator(s) on duty, and details regarding equipment problems, unusual events or departures from normal operating procedures.

*

Logbook entries were made in chronological order. Pursuant to Section 27(2) of O. Reg. 128/04, operators appear to be entering their records chronologically.

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Ministry of the Environment Inspection Report LOGBOOKS *

The record system allowed the reader to unambiguously identify the person who made the logbook entry. Pursuant to Section 27(4) of O. Reg. 128/04, operators appear to be using methods that allow for the identification of the operators making entries. An index of printed names, signatures and initials was included at the beginning of the logbooks.

*

Entries in the logbook were made only by appropriate and authorized personnel. Pursuant to Section 27(3) of O. Reg. 128/04, only authorized personnel appear to be making entries. (The Operating Authority confirmed all of their personnel are authorized to make entries on their behalf.)

*

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. Pursuant to Section 7-5 in Schedule 7 of O. Reg. 170/03, only qualified personnel (e.g., certified operators or water quality analysts) appear to be performing operational tests.

*

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. Pursuant to Section 6-10 in Schedule 6 of O. Reg. 170/03, operational tests and samples are accompanied by a record of the date, time, location, and the person conducting the testing/sampling.

*

The operator-in-charge ensured that records were maintained of all adjustments made to the processes within his or her responsibility. To ensure records of adjustments to processes that control flow, pressure or water quality within the system are documented pursuant to Section 26(2) (c) of O. Reg. 128/04, the Operating Authority advised their operators-in-charge rely upon the logbooks and their SCADA system. While conducting their rounds, Operators have access to the SCADA system via tablets. Owing to the complexity of the system, operators do not record every minor adjustment; however, the Operating Authority advised that every major setting change is discussed with senior personnel and documented. For example, the Production Supervisor made a number of notations regarding to the operation of the ozonation system as they looked at ways to fine tune the performance of this equipment in response to elevated bromate results.

*

Logs or other record keeping mechanisms were available for at least five (5) years. Pursuant to Section 27(6) of O. Reg. 128/04, the Operating Authority has committed to ensuring that their logs and related records are retained for over a minimum of five years. For their own purposes, they indicated they tend to store records for a longer period. Historical records are archived at the water treatment plant.

CONTINGENCY/EMERGENCY PLANNING *

Spill containment was provided for process chemicals and/or standby power generator fuel. To safeguard against accidental spills of liquid process chemicals, the building makes use of curbed containment area. Note: The system uses natural gas for its generator, and various gases as process chemicals (i.e., oxygen, ozone, carbon dioxide, chlorine. Separate contingencies are used to address potential releases of these chemicals.

Report Generated for terstepa on 14/10/2014 (dd/mm/yyyy) Site #: 220003421 CITY OF WINDSOR DRINKING WATER SYSTEM Date of Inspection: 10/09/2014 (dd/mm/yyyy)

Page 13 of 24

Ministry of the Environment Inspection Report CONTINGENCY/EMERGENCY PLANNING *

Clean-up equipment and materials were in place for the clean up of spills. The Ministry recommends maintaining materials appropriate to the type and volume of fuel and/or chemicals stored at facilities, to allow operators to respond to potential spills. The Operating Authority advised they have clean-up equipment and materials on-site. In addition to materials for cleaning up liquid spills, the Officer understands the facility has Self Contained Breathing Apparatus and monitoring equipment onsite to allow personnel to assess gaseous spills.

*

Standby power generators were tested under normal load conditions. Generators must not only start when required, they must operate under normal loads when required to do so. Consequently, besides periodically starting standby generators, the Ministry recommends owners ensure they are tested under full / normal loads. In their case, the Operating Authority advised the generators are regularly tested under normal load as they switch from the electrical grid to power from their generators in advance of storms. Further, the generators are used for "peak shaving", i.e., they generate their own power during hours when electrical charges are the highest.

SECURITY *

All storage facilities were completely covered and secure. Ministry Guideline B-12 (Potable Water Storage Structures), states the Ministry expects owners to cover water storage structures serving municipal and communal systems to prevent contamination of the stored water. This system does not include any open storage, and the reservoirs and elevated storage are secured within fenced perimeters.

*

Air vents and overflows associated with reservoirs and elevated storage structures were equipped with screens.

*

The owner had provided security measures to protect components of the drinking-water system. The Ministry recommends owners adopt various measures to secure their supplies, and treatment and storage facilities from intruders and potential sources of contamination. Security measures protecting the system include personnel attending the water treatment plant, video surveillance, locked / lockable gates, perimeter fencing, No Trespassing signs, locked hatches and screened vents. The Operating Authority did not report any incidents or concerns suggesting a need for additional security measures.

Report Generated for terstepa on 14/10/2014 (dd/mm/yyyy) Site #: 220003421 CITY OF WINDSOR DRINKING WATER SYSTEM Date of Inspection: 10/09/2014 (dd/mm/yyyy)

Page 14 of 24

Ministry of the Environment Inspection Report CONSUMER RELATIONS *

Water conservation was being practiced by the owner or operating authority. The Owner has consumer metering and a public education program that promotes the use of water efficient fixtures, etc. Several pages on their website are devoted to water conservation, e.g., www.wuc.on.ca/conservation/water.cfm Note: In January 2014, the Owner opted to discontinue the summer levy program introduced in 1989 to discourage the use of water during periods of peak demand. With falling water consumption, it is doubtful this will have a discernable impact. Lastly, the Operating Authority’s personnel operate a leak detection program to identify water losses within the distribution system.

*

Required documents were available free-of-charge during normal business hours at a location accessible to the public. Pursuant to Sections 12 of O. Reg. 170/03, municipalities are required to have copies of their test results; annual / summary reports; engineering evaluation reports; the applicable licences, permits or approvals; and O. Reg. 170/03 available to the public. In addition to documents available via the Owner's website, the Operating Authority advised the public is free to request material via the City's 311 call centre.

*

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. A number of reports for public consumption can be readily located on the Owner's website. I.e., www.wuc.on.ca/information/water_reports.cfm

CERTIFICATION AND TRAINING *

The overall responsible operator had been designated for each subsystem. O. Reg. 128/04 prescribes a system for classifying municipal residential systems, and a corresponding system for certifying operators. Further, Section 23(1) of O. Reg. 128/04 requires the appointment of an "overall responsible operator" [ORO] for each subsystem. The Owner has a Class 4 treatment system, and a Class 3 distribution system. Multiple supervisory personnel have been identified to serve in the capacity of ORO for each, with the acting ORO noting the same in their logbooks.

*

Operators in charge had been designated for all subsystems which comprised the drinkingwater system. Section 25(1) of O. Reg. 128/04 requires the appointment of one or more "operators-in-charge" for each subsystem. The Operating Authority has a number of appropriately certified supervisory personnel. As indicated in the logbooks, the Operating Authority commonly schedules a main and an alternate operator-in-charge for the plant.

*

All activities that were undertaken by uncertified persons in the DW subsystems were overseen by persons having the prescribed qualifications. Section 11(1) (5) of the Safe Drinking Water Act requires the placement of uncertified personnel under the supervision of persons having the prescribed qualifications. The Operating Authority reports that certified inspectors have been assigned responsibility for overseeing capital projects. Note: Section 4.1.1 of the Ministry’s "Certification Guide for Operators and Water Quality Analysts of Drinking Water Systems," identifies functions that certified operators must perform, and functions not requiring certification.

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Ministry of the Environment Inspection Report CERTIFICATION AND TRAINING *

All operators possessed the required certification. Each of the operators identified by the Operating Authority holds a drinking water certificate or a conditional drinking water certificate.

*

Only certified operators made adjustments to the treatment equipment. The Operating Authority advised that pursuant to Schedule 1 of O. Reg. 170/03, subsection 12(2)5, only individuals who are certified as Drinking-Water System Operators under O. Reg. 128/04, are permitted to make adjustments to the treatment equipment. Further, they advised that certified operators-in-training work under the supervision of the operatorin-charge. Note: An operator-in-training (OIT) is a licensed operator who can perform work within operational parameters set out by the Operator-in-Charge (OIC). To avoid operational errors, the Ministry recommends documenting these parameters, e.g., within standard operating procedures, etc.

*

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. Sections 15 and 21 of O. Reg. 128/04 requires a copy of every operator and analyst’s certificate to be displayed at either their workplace or at the premises from which the system is managed. The Operating Authority has posted their employee's certificates in the water treatment plant in the hallway across from the control room.

*

The classification certificates of the subsystems were conspicuously displayed at the workplace or at premises from which the subsystem was managed. Sections 3 (5) of O. Reg. 128/04 requires a copy of the system's classification certificate(s) to be displayed at either their workplace or at the premises from which the system is managed. The classification certificates are posted in the water treatment plant in the hallway across from the control room.

*

An adequately licenced operator was designated to act in place of the overall responsible operator when the overall responsible operator was unable to act. Section 23 of O. Reg. 128/04 requires the appointment of an overall responsible operator (ORO). As operators cannot be available 365 days a year (e.g., whether it be due to vacations or illness), several subsections address the appointment of alternates during these absences. This is not a concern at this facility given there are multiple certified supervisory personnel who can serve in this capacity.

*

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. Operators must undergo ongoing training in order to maintain their certification. Operator certification is administered by the Ontario Water Wastewater Certification Office (www.owwco.ca). The Ministry's local office is not in a position to intervene if an operator becomes ineligible to serve in their current position because they have failed to renew their certification. The Operating Authority advised they were aware of the ongoing training and record keeping requirements imposed by O. Reg. 128/04. Further, they noted they make use of software to track operator training.

Report Generated for terstepa on 14/10/2014 (dd/mm/yyyy) Site #: 220003421 CITY OF WINDSOR DRINKING WATER SYSTEM Date of Inspection: 10/09/2014 (dd/mm/yyyy)

Page 16 of 24

Ministry of the Environment Inspection Report WATER QUALITY MONITORING *

All microbiological water quality monitoring requirements for raw water samples were being met. Reported microbiological results indicate operators have satisfied the raw water samples sampling requirements prescribed by Section 10-4 in Schedule 10 of O. Reg. 170/03. Note: To avoid non-compliance, most operating authorities attempt to marginally exceed the sampling requirements in O. Reg. 170/03. The Officer would like to acknowledge that the Operating Authority has adopted a more robust sampling program that noticeably exceeds the number and/or frequency of sampling required for these parameters (and most parameters identified in the subsequent bullets).

*

All microbiological water quality monitoring requirements for distribution samples were being met. Reported microbiological results indicate operators have satisfied the distribution system sampling requirements prescribed by Section 10-2 in Schedule 10 of O. Reg. 170/03.

*

All microbiological water quality monitoring requirements for treated samples were being met. Reported microbiological results indicate operators have satisfied the treated water sampling requirements prescribed by Section 10-3 in Schedule 10 of O. Reg. 170/03.

*

All inorganic water quality monitoring requirements prescribed by legislation were conducted within the required frequency. Reported inorganic chemical results indicate operators have satisfied the sampling requirements prescribed by Section 13-2 in Schedule 13 of O. Reg. 170/03.

*

All organic water quality monitoring requirements prescribed by legislation were conducted within the required frequency. Reported organic chemical results indicate operators have satisfied the sampling requirements prescribed by Section 13-4 in Schedule 13 of O. Reg. 170/03.

*

All trihalomethanes water quality monitoring requirements prescribed by legislation were conducted within the required frequency. Reported total trihalomethanes results indicate operators have been collecting distribution samples as prescribed by Section 13-6 of Schedule 13, and by Section 6-1.1(4) of Schedule 6 in O. Reg. 170/03 (i.e., by sampling every three months with a minimum of 60 days between samples, and a maximum of 120 days between samples).

*

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. Sampling records indicate the operators normally test for trihalomethanes from Sample Station D04 in Windsor’s southwest, a point likely to have an elevated potential for disinfectant by-product formation – satisfying Section 13-6(1) in Schedule 13 of O. Reg. 170/03.

*

All nitrate/nitrite water quality monitoring requirements prescribed by legislation were conducted within the required frequency for the DWS. Reported nitrate and nitrite results indicate operators have been sampling as prescribed by Section 13-7 of Schedule 13, and by Section 6-1.1(4) of Schedule 6 in O. Reg. 170/03 (i.e., by sampling every three months with a minimum of 60 days between samples, and a maximum of 120 days between samples).

*

All sodium water quality monitoring requirements prescribed by legislation were conducted within the required frequency. Reported sodium results demonstrate compliance with the requirements prescribed by Section 138 in Schedule 13 of O. Reg. 170/03 (i.e., at least once every 60 months).

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Ministry of the Environment Inspection Report WATER QUALITY MONITORING *

All fluoride water quality monitoring requirements prescribed by legislation were conducted within the required frequency. Reported fluoride results demonstrate compliance with the requirements prescribed by Section 139 in Schedule 13 of O. Reg. 170/03 (i.e., at least once every 60 months).

*

The owner ensured that water samples were taken at the prescribed location. Sampling records indicate operators collect their samples at the locations prescribed by Section 62 in Schedule 6 of O. Reg. 170/03. I.e., unless otherwise specified, personnel should sample from the point at which water enters the distribution system.

*

All water quality monitoring requirements imposed by the Permit and Licence or Approval issued under Part V of the SDWA were being met. In addition to the routine sampling required by O. Reg. 170/03, Schedule C in the Owner’s Licence prescribes monthly testing for bromate, a disinfection by-product associated with ozonation. Sampling records indicate operators have been collecting a minimum of a dozen samples per month.

*

All sampling requirements for lead prescribed by schedule 15.1 of O. Reg. 170/03 were being met.

*

The owner was conducting sampling beyond the minimum legislative requirements. Some supplies are subject to localized affects that prompt owners and operating authorities to conduct tests more frequently, or to conduct tests of parameters outside of the routine parameters prescribed in O. Reg. 170/03. As indicated by the reported sample results, the Operating Authority often collects samples in greater numbers, or at a greater frequency, than the minimum prescribed by O. Reg. 170/03. The Operating Authority also advised they have collected data related to pilot testing of corrosion control processes.

*

Records confirmed that chlorine residual tests were being conducted at the same time and at the same location that microbiological samples were obtained. Sampling records indicate operators test the chlorine residual at the same time and location they are collecting microbiological samples, as prescribed by Section 6-3(1) in Schedule 6 of O. Reg. 170/03.

*

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. Appendices to this report (i.e., excerpts of the Drinking Water System Dossier and the Summary of Reported Sample Results) indicate the submission of Laboratory Services Notification forms pursuant to Section 6-9(4) in Schedule 6 of O. Reg. 170/03. The Operating Authority did not identify the use of any additional laboratories.

*

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. The Operating Authority advised the sampling instructions provided by their laboratories are accessible to their operators. (The Officer did not note any unusual sample results indicating samples were handled inappropriately.)

Report Generated for terstepa on 14/10/2014 (dd/mm/yyyy) Site #: 220003421 CITY OF WINDSOR DRINKING WATER SYSTEM Date of Inspection: 10/09/2014 (dd/mm/yyyy)

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Ministry of the Environment Inspection Report WATER QUALITY MONITORING *

The owner indicated that the required records are kept and will be kept for the required time period. Section 13 of O. Reg. 170/03 prescribes retention schedules ranging from 2 to 15 years for various water quality monitoring documents. To satisfy these requirements, the Operating Authority advised they archive historical records at the water treatment plant. Further, they noted their own retention exceeds that required by O. Reg. 170/03.

WATER QUALITY ASSESSMENT *

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: Sample results reported during the inspection review period indicated four samples exceeded the limit for bromate. Bromate is a disinfection by-product associated with the ozonation. Several factors affect bromate formation, especially ozone dosage. Replacement of nine ozone diffusers on December 9, 2013 appeared to have yielded a positive effect; however, it appears that maintenance alone will be insufficient to ensure levels are consistently maintained below the limit. Historically results have peaked during seasons with lower consumption. Contrary to expectations considered in the design the ozone generation process, water consumption fell 26% between 2007 and 2013. As the ozone generation equipment was sized to provide ozone for both of the water treatment plants, the Operating Authority has indicated they cannot throttle it back any lower. The Operating Authority has retained the designer of their current ozonation system to work on a new system, and they are still anticipating the installation of a smaller ozone generator later in 2014. It is anticipated that this change will yield a significant improvement on subsequent bromate results.

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. Schedule 17 of O. Reg. 170/03 prescribes generic corrective actions in response to adverse test results and/or indicators of improper disinfection – including consulting with, and taking any additional measures prescribed by the Medical Officer of Health (Health Unit). (Reporting and corrective action related to lead sampling is discussed addressed in Schedule 15.1 of O. Reg. 170/03, and is discussed in a separate bullet.) The Ministry had several incident reports listed on its Laboratory and Waterworks Information System since the last inspection. The Notices of Resolution indicate corrective actions occurred. (With respect to bromate formation, while the Operating Authority believed the problem had been resolved, they committed to continuing to sample twice a month for bromate and bromide.)

*

Corrective actions as directed by the Medical Officer of Health had been taken by the owner and operating authority to address exceedances of the lead standard. Schedule 15.1 of O. Reg. 170/03 does not prescribe generic corrective actions in response to reports of elevated lead results. Instead, the Schedule requires owners and operating authorities to consult and take direction from the local Medical Officer of Health (Health Unit). The Officer understands the Operating Authority and local Health Unit continue to have a standardized approach for responding to adverse lead results based upon the reported concentration. For results between 10 and 30ug/L, the Operating Authority immediately informs the Health Unit and provides the occupant a letter,

Report Generated for terstepa on 14/10/2014 (dd/mm/yyyy) Site #: 220003421 CITY OF WINDSOR DRINKING WATER SYSTEM Date of Inspection: 10/09/2014 (dd/mm/yyyy)

Page 19 of 24

Ministry of the Environment Inspection Report REPORTING & CORRECTIVE ACTIONS - explaining the Ministry’s standard for lead is 10ug/L. - identifying the results of the lead test. - recommending flushing. - recommending a plumbing survey to locate the source of elevated lead. - referencing the Health Unit’s lead fact sheet - providing contact information should further questions arise. In the event of lead results >30ug/L, the Operating Authority is to immediately inform the Health Unit who in turn will liaise with the occupant directly in order to impress upon them the importance to the activities identified above. The Health Unit does not require the Operating Authority to conduct further corrective action or reporting in response to these events. Note: The Operating Authority has completed corrosion control pilot testing using lead service lines removed from the consumers’ properties. (Corrosion in a system can be reduced by changing the water’s characteristics, such as adjusting the pH and alkalinity.) The Operating Authority is hoping to build upon the success of their pilot tests, and to implement a full-scale treatment system. *

All required notifications of adverse water quality incidents were immediately provided as per O. Reg. 170/03 16-6. Schedule 16 of O. Reg. 170/03 requires an immediate verbal report of adverse water quality incidents to the local Health Unit/Medical Officer of Health and to the Ministry’s Spills Action Centre. The documents reviewed by the Officer indicated the Operating Authority made the required notifications.

*

All required written notices of adverse water quality incidents were provided as per O. Reg. 170/03 16-7. Documents reviewed by the Office indicated the Operating Authority provided written notification of the incident as required by Section 16-7 of O. Reg. 170/03.

*

In instances where written notice of issue resolution was required by regulation, the notice was provided as per O. Reg. 170/03 16-9. Documents reviewed by the Officer indicated the Municipality / Operating Authority provided written notification advising how the incident was resolved as required by Section 16-9 of O. Reg. 170/03.

*

All reporting requirements for lead sampling were complied with as per schedule 15.1-9 of O. Reg. 170/03. Section 15.1-9 in Schedule 15.1 of O. Reg. 170/03 requires reporting by owners and operating authorities in response to elevated lead results. The procedures identified under the second bullet in this section of the report, address these requirements. Further, records provided by the Operating Authority indicate they are meeting these requirements.

*

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. Where continuous chlorine residual or turbidity monitoring equipment malfunctions, loses power, alarms or results in a shutdown, the Ministry requires prompt and appropriate action. However, it is important to note that Schedule 6 of O. Reg. 170/03 includes several considerations including whether the system is continuing to supply consumers. Overall, the free chlorine residual appeared to be stable. As anticipated, some outliers were generated during maintenance. During events examined by the Officer, operators appeared to have acted promptly and appropriately.

Report Generated for terstepa on 14/10/2014 (dd/mm/yyyy) Site #: 220003421 CITY OF WINDSOR DRINKING WATER SYSTEM Date of Inspection: 10/09/2014 (dd/mm/yyyy)

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Ministry of the Environment Inspection Report REPORTING & CORRECTIVE ACTIONS *

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. Where primary disinfection equipment malfunctions, loses power, alarms or results in a shutdown, the Ministry generally requires prompt and appropriate action. Overall, the level of disinfection provided by the ozonation system was significantly higher than required. As anticipated, some outliers were generated during maintenance. During events examined by the Officer, operators appeared to have acted promptly and appropriately.

*

The Annual Report containing the required information was prepared by February 28th of the following year. The Summary Report, which includes the Annual Report, is available from the Operating Authority's website: http://www.wuc.on.ca/downloads/2013_Summary_Report_for_Municipalities.pdf

*

Summary Reports for municipal council were completed on time, included the required content, and were distributed in accordance with the regulatory requirements.

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Ministry of the Environment 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.

Not Applicable

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Ministry of the Environment 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

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Ministry of the Environment Inspection Report

SIGNATURES Inspected By:

Signature: (Provincial Officer):

Paul Tersteege Reviewed & Approved By: Gary Johnson Review & Approval Date:

Signature: (Supervisor):

2014.10.1 5 10:20:17 -04'00'

Note: This inspection does not in any way suggest that there is or has been compliance with applicable legislation and regulations as they apply or may apply to this facility. It is, and remains, the responsibility of the owner and/or operating authority to ensure compliance with all applicable legislative and regulatory requirements.

Report Generated for terstepa on 14/10/2014 (dd/mm/yyyy) Site #: 220003421 CITY OF WINDSOR DRINKING WATER SYSTEM Date of Inspection: 10/09/2014 (dd/mm/yyyy)

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Ministry of the Environment Drinking Water Inspection Report

Appendix 1 - Inspection Rating Report

Ministry of the Environment - Inspection Summary Rating Record (Reporting Year - 2014-2015)

DWS Name: DWS Number: DWS Owner: Municipal Location:

CITY OF WINDSOR DRINKING WATER SYSTEM 220003421 Windsor Utilities Commission Windsor

Regulation: Category: Type Of Inspection: Inspection Date: Ministry Office:

O.REG 170/03 Large Municipal Residential System Detailed September 10, 2014 Windsor Area Office Maximum Question Rating: 797 Inspection Module

Non-Compliance Rating

Permit To Take Water

0/6

Capacity Assessment

0 / 38

Treatment Processes

0 / 136

Process Wastewater

0 / 20

Distribution System

0 / 29

Operations Manuals

0 / 42

Logbooks

0 / 42

Consumer Relations

0/8

Certification and Training

0 / 65

Water Quality Monitoring

0 / 160

Reporting & Corrective Actions

0 / 127

Treatment Process Monitoring

0 / 124 TOTAL

0 / 797

Inspection Risk Rating 0.00%

FINAL INSPECTION RATING: 100.00%

Inspection Rating Record Generated On 15-OCT-14 (Inspection ID: 1-BD1KC). R:\Public\DW\DW-08 Compliance\Shared Comp Data\Inspection Ratings 1415\Gary Johnson\1415 CITY OF WINDSOR DRINKING WATER SYSTEM 1-BD1KC.pdf

Ministry of the Environment Drinking Water Inspection Report

Appendix 2 - Area Map and Simplified Process Flow Diagram

Area Map

Water Treatment Plants, Reservoir and Pumping Stations

Hanna Water Tower

J.F. Cook Reservoir and Pumping Station

Simplified Process Flow Diagram

Ministry of the Environment Drinking Water Inspection Report

Appendix 3 - Excerpts of Drinking Water System Dossier

021 - Drinking Water System Dossier for 220003421 Drinking Water System Profile Information DWS # Registration Date (yyyy/mm/dd) DWS Status

220003421 2002/09/11 Active DWS

MOE Assigned Name Category Regulation Short Name DWS Type Source Type Address Region District Municipality Public Health Unit

City Of Windsor Drinking Water System LMRS O.REG 170/03 Water Treatment Plant Surface Water 3665 Wyandotte Street East, Windsor City, Ontario, N8Y 1G4, Canada Southwestern Region Windsor Area Office Windsor Windsor-Essex County Health Unit

DWS OPERATIONAL INFORMATION Geographic Township Population:

238,000

Rated Daily Capacity (L/S)

4,040

LSN Compliance Status: Date of Last Sample (as per DWIS) 24/7 Contact

Complete LSN 10 October, 2014 Garry Rossi, Director, Water Production p: (519)2517300 x5623, f: (519)9454491, e: [email protected], c: (519)7915799

24/7 Contact Info DWS OWNER INFORMATION Owner Legal Name Owner Business Name Owner Address Owner Contact Owner Contact Info Owner Alternate Contact Owner Alternate Contact Info

Windsor Utilities Commission Windsor Utilities Commission 4545 Rhodes Dr,Post Office Box Delivery ,1625 Station A,Windsor,Ontario,N9A 5T7 John Stuart, Vice President Operations p: (519)2517334, f: (519)2517329, e: [email protected] John Wladarski, Vice President Asset Management p: (519)2517331, f: (519)2517329, e: [email protected]

DWS OPERATING AUTHORITY INFORMATION Op. Authority Legal Name Enwin Utilities Ltd. Op. Authority Business Name Enwin Utilities Ltd. Op. Authority Address 4545 Rhodes Dr,Post Office Box Delivery ,1625,Windsor,Ontario,N9A 5T7 Op. Authority Contact Garry Rossi, Director, Water Production Op. Authority Contact Info p: (519)2517300 x5623, f: (519)9454491, e: [email protected] Op. Authority Alternate Contact Monica Reid, Compliance Coordinator Op. Authority Alternate Contact Info p: (519)2517341, f: (519)2517309, e: [email protected] WLIS PROFILE INFORMATION Municipal DWS ID Municipal DWS Name

92 City of Windsor Drinking Water System

Ministry of the Environment Drinking Water Inspection Report

Appendix 4 - Summary of Reported Sample Results

Ministry of the Environment Safe Drinking Water Branch

Summary of Reported Results

DW System: 220003421, City Of Windsor Drinking Water System MOE Area: Southwestern Region, Windsor Area Office Health Unit: Windsor-Essex County Health Unit

Category: LMRS Source: Surface Water Regulation: O.REG 170/03

Microbiological - Number of Samples Collected Each Month Location: Distribution:City Of Windsor Drinking Water System Type: Distributed Drinking Water Month 2014 Jul 2014 Jun 2014 May 2014 Apr 2014 Mar 2014 Feb 2014 Jan 2013 Dec 2013 Nov 2013 Oct 2013 Sep 2013 Aug 2013 Jul 2013 Jun 2013 May 2013 Apr 2013 Mar 2013 Feb 2013 Jan

EC 164 203 195 200 186 193 198 179 193 216 182 188 207 200 206 207 189 198 206

Location: Detroit River Type: Raw Surface Water Month EC 2014 Jul 18 2014 Jun 20 2014 May 19 2014 Apr 20 2014 Mar 18 2014 Feb 18 2014 Jan 20 2013 Dec 17 2013 Nov 21 2013 Oct 22 2013 Sep 19 2013 Aug 21 2013 Jul 21 2013 Jun 20 2013 May 22 2013 Apr 20 2013 Mar 20 2013 Feb 19 2013 Jan 23

TC 164 203 195 200 186 193 198 179 193 216 182 188 207 200 206 207 189 198 206

TC 18 20 19 20 18 18 20 17 21 22 19 21 21 20 22 20 20 19 23

HPC 134 Yes Yes 143 135 Yes Yes 150 113 Yes Yes 134 148 Yes Yes 119 143 Yes Yes 166 117 Yes Yes 133 161 Yes Yes 140 166 Yes Yes 140 139 Yes Yes 138 156 Yes

HPC 0 Yes Yes 0 0 Yes Yes 0 0 Yes Yes 0 0 Yes Yes 0 0 Yes Yes 0 0 Yes Yes 0 0 Yes Yes 0 0 Yes Yes 0 0 Yes Yes 0 0 Yes

220003421, City Of Windsor Drinking Water System: Sampling and Testing Summary

Filter: >=

Jan 1, 2013

Filter: >=

Jan 1, 2013

HPC/EC 82% 70% 69% 75% 61% 69% 75% 66% 74% 77% 64% 71% 78% 70% 81% 68% 74% 70% 76%

HPC/EC 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% Page 1 of 9

Location: Treated: A.H. Weeks Treatment Plant Type: Treated Surface Water Month 2014 Jul 2014 Jun 2014 May 2014 Apr 2014 Mar 2014 Feb 2014 Jan 2013 Dec 2013 Nov 2013 Oct 2013 Sep 2013 Aug 2013 Jul 2013 Jun 2013 May 2013 Apr 2013 Mar 2013 Feb 2013 Jan

EC 72 90 116 120 116 108 126 101 122 129 119 122 128 119 131 124 121 121 146

TC 72 90 116 120 116 108 126 101 122 129 119 122 128 119 131 124 121 121 146

Location: Treated: Old Wtp Type: Treated Surface Water Month EC 2014 Jul 43 2014 Jun 51 2014 May 43 2014 Apr 48 2014 Mar 48 2014 Feb 45 2014 Jan 46 2013 Dec 41 2013 Nov 50 2013 Oct 54 2013 Sep 43 2013 Aug 50 2013 Jul 52 2013 Jun 47 2013 May 52 2013 Apr 47 2013 Mar 44 2013 Feb 38 2013 Jan 44

TC 43 51 43 48 48 45 46 41 50 54 43 50 52 47 52 47 44 38 44

HPC 36 Yes Yes 42 40 Yes Yes 42 38 Yes Yes 36 44 Yes Yes 35 42 Yes Yes 44 41 Yes Yes 42 42 Yes Yes 41 45 Yes Yes 42 45 Yes Yes 45 56 Yes

HPC 43 Yes Yes 51 43 Yes Yes 48 46 Yes Yes 45 46 Yes Yes 41 50 Yes Yes 54 43 Yes Yes 50 52 Yes Yes 47 52 Yes Yes 47 44 Yes Yes 38 44 Yes

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Jan 1, 2013

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Jan 1, 2013

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Jan 1, 2013

HPC/EC 50% 47% 34% 35% 33% 33% 35% 35% 34% 34% 34% 34% 33% 34% 34% 34% 37% 37% 38%

HPC/EC 100% 100% 100% 100% 96% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100%

Microbiological - Exceedances Sampled 2014-Mar-19 2014-Jan-13

EC 34 0

TC 470 3

HPC Yes 840 Yes

220003421, City Of Windsor Drinking Water System: Sampling and Testing Summary

Sample ID 14MAR19_01-16 RW WP-OTP-LBRTR-SPL-RAWWATE WP-AHW-LBRTR-SPL-TREATEDWTR-2B TW TREATE

Page 2 of 9

Schedule 24 Organic Samples Location: Treated: A.H. Weeks Treatment Plant Date: 2014-Jul-7

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Parameter 1. 2. 3. 4. 5. 6. 7. 8. 9. 10 . 11 . 12 . 13 . 14 . 15 . 16 . 17 . 18 . 19 . 20 . 21 . 22 . 23 . 24 . 25 . 26 . 27 . 28 . 29 . 30 . 31 . 32 . 33 . 34 . 35 . 36 . 37 . 38 . 39 . 40 . 41 . 42 . 43 . 44 . 45 . 46 . 47 . 48 . 49 . 50 . 51 . 52 . 53 . 54 . 55 . 56 .

Alachlor Aldicarb Aldrin + Dieldrin Atrazine + N-Dealkylated Metabolites Azinphos-Methyl Bendiocarb Benzene Benzo(A)Pyrene Bromoxynil Carbaryl Carbofuran Carbon Tetrachloride Chlordane (Total) Chlorpyrifos Cyanazine Diazinon Dicamba 1,2-Dichlorobenzene 1,4-Dichlorobenzene Dichlorodiphenyltrichloroethane (Ddt) + Metabolites 1,2-Dichloroethane 1,1-Dichloroethylene (Vinylidene Chloride) Dichloromethane 2,4-Dichlorophenol 2,4-Dichlorophenoxyacetic Acid (2,4-D) Diclofop-Methyl Dimethoate Dinoseb Diquat Diuron Glyphosate Heptachlor + Heptachlor Epoxide Lindane (Total) Malathion Methoxychlor Metolachlor Metribuzin Monochlorobenzene Paraquat Parathion Pentachlorophenol Phorate Picloram Polychlorinated Biphenyls (Pcbs) Prometryne Simazine Temephos Terbufos Tetrachloroethylene (Perchloroethylene) 2,3,4,6-Tetrachlorophenol Triallate Trichloroethylene 2,4,6-Trichlorophenol 2,4,5-Trichlorophenoxyacetic Acid (2,4,5-T) Trifluralin Vinyl Chloride

Jan 1, 2014

Results Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

220003421, City Of Windsor Drinking Water System: Sampling and Testing Summary

0.02 0.01 0.01 0.01 0.02 0.01 0.32 0.004 0.33 0.01 0.01 0.16 0.01 0.02 0.03 0.02 0.2 0.41 0.36 0.01 0.35 0.33 0.35 0.15 0.19 0.4 0.03 0.36 1 0.03 1 0.01 0.01 0.02 0.01 0.01 0.02 0.3 1 0.02 0.15 0.01 1 0.04 0.03 0.01 0.01 0.01 0.35 0.14 0.01 0.44 0.25 0.22 0.02 0.17

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 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