2. STATEMENT OF COMPLIANCE

Transcription

1 2. STATEMENT OF COMPLIANCE The Ontario Drinking-Water Systems Regulation (O.Reg.170/03) under the Safe Drinking Water Act, 2002 (The Act) prescribes stringent and mandatory requirements to monitor, test and report on drinking water quality. It requires an Annual Report to be prepared for the preceding calendar year that identifies specific details regarding the overall quality of drinking water supplies and that is made available to the public by February 28 of each year. Earlier this year, the Annual Reports on water quality were prepared for each of the s drinking water systems and made available to the public, as required. Reports can be viewed on-line, via regional website, and electronic or paper copy obtained upon request. Under Schedule 22 of the O.Reg.170/03, the owner of a water system must also prepare a summary report and present it to Regional Council by March 31 of each year. The report must demonstrate that regular review of compliance with the requirements of the Act and its regulations, and terms and conditions of Approvals, Licences, Permits is in place. The regulatory requirements that the drinking water system failed to meet must be summarized and the actions taken to correct these failures described. The report must also include a summary of the quantities and flow rates of water supplied during the period from January 1 to December 31, 2017, counting monthly average and maximum daily flows for all municipal drinking water systems. The fulfilled the requirements of the Act, the regulations, and the terms and conditions of all Approvals, Licences, and Permits for the municipal groundwater and surface water systems, with the exception of the administrative and operational related events detailed below. These occurrences were found non-compliant with the conditions of the Ontario drinking water regulation and supplementary legislative instruments; however, not associated with the quality or safety of drinking water supplied to the consumers. Ministry of Environment and Climate Change (MOECC) inspections conducted in 2017 yielded excellent ratings for the s groundwater and surface water systems, results of which have been presented in the table below. Drinking Water System / Water Works 2017 MOECC Inspection Rating Caledon Village Alton 96.18% Palgrave Caledon East 95.9% Cheltenham 100% Inglewood 100% Lakeview Water Treatment Plant * Lorne Park Water Treatment Plant 100% South Peel Distribution 94.47% * The 2017 inspection for the Lakeview Water Treatment Plant was still underway at the time of this report A nnual Summary Report

2 Also included in the 2017 MOECC inspections was the Poltawa Country Club Distribution System (CCDS) located in Terra Cotta, Caledon. This Non-Municipal Year- Round Residential system is owned by the Poltawa Country Club and operated by the through Section 5 of O.Reg. 170/03 legal agreement, approved by Peel s Regional Council in January 2016, that includes regular monitoring of water quality. The outcome of Poltawa CCDS inspection was excellent, with no findings of compliance related issues observed or reported. Drinking Water System 2017 MOECC Inspection Rating Poltawa Country Club Distribution 100% 2017 A nnual Summary Report

3 Statement of Compliance - Summary of Operational Events Drinking Water Legislative Requirement Statement of Non-Compliance Corrective Action System Municipal Groundwater Systems (North Peel) Palgrave Caledon East Palgrave Caledon East Schedule 10, Section 10-3 Treated water shall be sampled once every week and tested for microbiological parameters. Schedule 6, Section Weekly samples must be collected and tested at least five (5) days and not more than ten (10) days after the sample collected in the previous week. Schedule 6-10 The owner and operating authority shall ensure that, for every sample required by Schedule 7, a record is made of the following information - date and time sample was taken - name of person conducting test - results of the test - location where sample was taken On May 9, 2016, a treated water sample was collected at Caledon East Wells No. 3 and No. 4 as required; however, when the samples arrived at the laboratory, they had exceeded the prescribed time frame for analysis. Resamples were collected on May 12, The following week s sample was collected on May 16, 2016, as scheduled, which resulted in samples being collected less than five (5) days apart. Chlorine residuals collected and tested from distribution system maintenance (flushing) on January 3, 2017, did not have the sampling time recorded. These grab chlorine residuals were used to demonstrate compliance with Schedule 7-2 (3) or O.Reg 170/03. To prevent recurrence, existing practice for pick-up of water samples by the laboratory was reviewed and further enhanced. Regulatory sampling requirements were also reviewed with operations personnel to ensure compliance. Chlorine Residual Inspection Form and Water Work Orders were updated to include a time field for each chlorine residual grab sample. Training was delivered to operations staff in June 2017, which included updating the operators tablets with the new version of the electronic form and reviewing the requirements of the regulation. Page 1 of 4

4 Caledon Village Alton Schedule 7-2 (3) At least seven (7) distribution samples are to be collected each week and tested immediately for free chlorine residual. Unless one sample is collected each day of the week, four (4) of the samples must be taken on one day of the week and three (3) of the samples are to be taken on a second day of the week, at least 48 hours after the last sample was taken on the previous day in the same week. Grab samples are generally collected on Monday and Thursday of each week. On the weeks of September 4, 2016, February 19, 2017 and May 21, 2017, where Monday was a holiday, the first sampling day was pushed back to Tuesday, but the second sampling day remained Thursday. Caledon Water operations has amended its staffing schedule such that on weeks when the Monday is a statutory holiday, facility inspections and sampling will be performed on Tuesday and Friday. This permanent scheduling change ensures that the distribution system chlorine residual operational checks will comply with the minimum 48 hours separation. Page 2 of 4

5 Municipal Surface Water Systems (South Peel) Lakeview Water Treatment Plant Lorne Park Water Treatment Plant South Peel Distribution Municipal Drinking Water Licence No , Schedule B, Section 10.1 Water systems must not discharge a contaminant into the natural environment that causes, or is likely to cause, an adverse effect. Drinking Water Works Permit No , Schedule B, Section 2.4 Water system owners must notify the Director within 30 days of completion of any modification authorized through Schedule B. Drinking Water Works Permit No , Schedule B, Section 2.4 Water system owners must notify the Director within 30 days of completion of any modification authorized through Schedule B. Municipal Drinking Water Licence No , Schedule B, Section 10.1 Water systems must not discharge a contaminant into the natural environment that causes, or is likely to cause, an adverse effect. On September 24, 2017, wastewater from the on-site residuals management facility overflowed from a sanitary sewer chamber onto parking lot with an estimated 800 L of wastewater entering a nearby storm catch basin. Director Notification was not provided within 30 days of installation of a sodium hypochlorite pump skid for delivery of chlorine to the raw water intake crib. Director Notification was not provided within 30 days of removal of two sodium bisulphite pumps that had not been in use for several years. On several occasions throughout 2017, water emerging from a watermain break picked up soil (silt) and washed it into a nearby storm sewer or water body, until the water supply was isolated for watermain repair efforts to be initiated. Staff immediately shut down waste transfer pumps. The overflowing water was observed to be clear and colourless and yielded a total chlorine measurement of 0 mg/l. Visual inspection of the lake outfall showed no impact to the natural environment. The event was reported appropriately. The overflow wastewater is suspected to have been service water (treated water used in plant processes, such as pump cooling) released due to a valve trip. Increased monitoring of the system has shown no repeat occurrences. A new process has been employed for tracking of projects in progress through to completion. A new process has been employed for tracking of projects in progress through to completion. The Environmental Control responds to these events to assess impact to fish, wildlife, or plant lift and report the event to the MOECC. During these events, staff strive to maintain drinking water system pressure ad ensure the integrity of the drinking water supply. Page 3 of 4

6 South Peel Distribution Watermain Disinfection Procedure In addition to other requirements, mandatory sampling for bacteriological parameters and chlorine residual is required following each Category 2 watermain break repair. Watermain Disinfection Procedure In addition to other requirements, mandatory flushing is required following a watermain break repair. Watermain Disinfection Procedure When performing maintenance and repair activities, specific details (listed in Section 4.0) must be recorded. Drinking Water Works Permit No , Schedule B, Section Modifications authorized through Schedule B Section 4.1, 4.2 or 4.3 must be recorded on a Form 2 prior to the modification being placed into service. Schedule (3)c A distribution sample collected for lead testing must be tested for ph immediately after the sample is taken. On Tuesday August 8, 2017, after a long weekend, samples collected following a Category 2 watermain break repair on Thursday, August 3, 2017, were discovered to have not been submitted to the laboratory. The samples had expired and could not be tested. A Water Work Order/Daily Activity Record indicated that flushing was not performed following repair of a Category 1 watermain break on July 26, Annual MOECC inspection of the water system revealed numerous instances where the required details were not recorded on the Water Work Order/Daily Activity Record. Form 2 was not completed prior to placing into service of newly installed mixing systems within the Bolton Standpipes. On September 13, 2016, ph measurement was not performed on two distribution lead samples that were collected as part of the Community Lead Testing Program. Courtesy notice was provided to the MOECC local branch office on August 9, Samples collected on August 4, 2017, in the immediate area of the August 3 watermain break repair yielded satisfactory results for bacteriological parameters and chlorine residual. Positive pressure was maintained within the watermain throughout the duration of the work, preventing ingress of contamination. Procedure and form are being reviewed to improve clarity of direction to staff, after which training sessions will be delivered to review process and documentation requirements with staff. Training refresher session on record keeping requirements was developed and is being delivered to the water and wastewater operators. Employee attendance at these sessions will be documented in the training files. The Water Work Order form is being reviewed for opportunities to improve the repair sections for clarity, completeness, and layout. During inspection and maintenance of the standpipes, it was determined that their interior coatings required repair. With the duration the assets would be out of service, it was decided to add the installation of mixing systems to the scope of work. Immediate execution of the additional work altered the documentation process and inadvertently affected form completion timelines. Courtesy notice was provided to the MOECC local branch office on November 8, Sampling SOP was reviewed with applicable operations group with emphasis on lead program requirements. Laboratory implemented a means of flagging any lead samples submitted without a ph reading provided. Page 4 of 4