Drinking-Water Systems Regulation O. Reg. 170/03

Transcription

1 2017 ANNUAL REPORT FOR WATER WORKS (R. 170/03, Sec. 11) Drinking-Water System Number: Drinking-Water System Name: Island Lake Drinking Water System Drinking-Water System Owner: The Corporation of the Town of Mono Drinking-Water System Category: Large Municipal Residential Period being reported: January 1 to December 31, 2017 Complete if your Category is Large Municipal Residential or Small Municipal Residential Does your Drinking-Water System serve more than 10,000 people? Yes [ ] [X] Is your annual report available to the public at no charge on a web site on the Internet? Yes [X] [ ] Location where Summary Report required under O. Reg. 170/03 Schedule 22 will be available for inspection. Town of Mono Municipal Offices Mono Centre Road (Dufferin County Road 8) Mono ON L9W 6S3 Complete for all other Categories. Number of Designated Facilities served: N/A Did you provide a copy of your annual report to all Designated Facilities you serve? Yes [ ] [ ] Number of Interested Authorities you report to: N/A Did you provide a copy of your annual report to all Interested Authorities you report to for each Designated Facility? Yes [ ] [ ] te: For the following tables below, additional rows or columns may be added or an appendix may be attached to the report List all Drinking-Water Systems (if any), which receive all of their drinking water from your system: Drinking Water System Name Drinking Water System Number N/A N/A Did you provide a copy of your annual report to all Drinking-Water System owners that are connected to you and to whom you provide all of its drinking water? Yes [ ] [ ] t Applicable [X] Page 1 of 9

2 Indicate how you notified system users that your annual report is available, and is free of charge. [X] Public access/notice via the web [X] Public access/notice via Government Office [X] Public access/notice via a newspaper [ ] Public access/notice via Public Request [ ] Public access/notice via a Public Library [ ] Public access/notice via other method Describe your Drinking-Water System The Island Lake drinking water system consists of 5 water supply wells, one elevated water storage reservoir, and approximately 14.8 km of watermains. Liquid sodium hypochlorite is used for disinfection and liquid sodium silicate is used for iron sequestration. The system currently has 613 water service connections. List all water treatment chemicals used over this reporting period 1. Liquid sodium hypochlorite for primary disinfection at 5 wells. 2. Liquid sodium silicate for iron sequestration at 3 wells. 3. Liquid sodium hypochlorite for secondary disinfection throughout the distribution system. Were any significant expenses incurred to? [X] Install required equipment [ ] Repair required equipment [ ] Replace required equipment Please provide a brief description and a breakdown of monetary expenses incurred 1. Install standby electric generator at Coles pump house. Abbreviations used in this report 1. ND indicates the sample result was t Detected. 2. N/A means not applicable. 3. mg/l means milligrams per litre; or approximately one part per million (ppm). 4. ug/l means micrograms per litre; or approximately one part per billion (ppb). 5. < following a test result in the tables indicates the result is less than the laboratory method detection limit for that specific parameter (not detectable). Page 2 of 9

3 Provide details on the notices submitted in accordance with subsection 18(1) of the Safe Drinking-Water Act or section 16-4 of Schedule 16 of O.Reg.170/03 and reported to Spills Action Centre Incident Date 28-Feb-17 Parameter Result Unit of Measure Sodium concentration > 20 mg/l in a drinking water sample from the Island Lake DWS. Report for sodium had not been made in the preceding 57 months. [R.170/03, S.16-3(1)8] 22.1 mg/l Corrective Action Resample and test as required. Local Health Unit was provided with updated information regarding sodium concentrations in Dec further action required. Corrective Action Date or Date Resolved 15-Mar-17 Microbiological testing done under the Schedule 10, 11 or 12 of Regulation 170/03, during this reporting period. (Well PW-1) (Well PW-2) Treated (point of entry) (Well 1) (Well 2) (Well 3) Treated (point of entry) Distribution (routine) Distribution (non-routine) Number of s Range of E.Coli Or Fecal Results (min #)-(max #) Range of Total Coliform Results (min #)-(max #) Number of HPC / Background s Range of HPC / Background Results (min #)-(max #) COLES WELLS PW-1 AND PW / / / 52 0->2000 / / / 0-0 ISLAND LAKE WELLS 1, 2 AND / 52 0->2000 / / / / 52 0->2000 / / / 0-12 COLES AND ISLAND LAKE DISTRIBUTION SYSTEM / >2000 / / / 0-0 Page 3 of 9

4 Operational testing done under Schedule 7, 8 or 9 of Regulation 170/03 during the period covered by this Annual Report. Number of Grab s Range of Results (min #)-(max #) COLES WELLS PW-1 AND PW ( Water, Well PW-1) ( Water, Well PW-2) Chlorine (mg/l) (Sch. 7-2(1), Point of Entry) ISLAND LAKE WELLS 1, 2 AND ( Water, Well 1) ( Water, Well 2) ( Water, Well 3) Chlorine (mg/l) (Sch. 7-2(1), Point of Entry) COLES & ISLAND LAKE DISTRIBUTION SYSTEM Chlorine (mg/l) (Sch. 7-2(3), Dist. System) NOTE: For continuous monitors use 8760 as the number of samples. Summary of additional testing and sampling carried out in accordance with the requirement of an approval, order or other legal instrument. Date of legal instrument issued 04 Dec 2015 N-nitrosodimethylamine (NDMA) Parameter Date d Result Unit of Measure COLES TREATED WATER 21 Feb ug/l Summary of testing under Schedule (10) during this reporting period (applicable to the following drinking water systems; large municipal residential systems, small municipal residential systems, and non-municipal year-round residential systems) Location Type Distribution (Sentry Monitoring, Winter 2017) Distribution (Sentry Monitoring, Summer 2017) Parameter ed Number of s Range of Results (min#) (max #) Unit of Measure Number of Exceedances Lead ug/l ne Alkalinity mg/l ne ph none ne Lead ug/l ne Alkalinity mg/l ne ph none ne Page 4 of 9

5 COLES PUMP HOUSE TREATED WATER: (Point of entry sample results) Summary of Inorganic parameters tested during this reporting period or the most recent sample results Date Location Type Parameter ed Results Unit Exceedance 24-Apr-17 Coles Well Treated Treated Antimony (Sb) 0.02 < ug/l 24-Apr-17 Coles Well Treated Treated Arsenic (As) 4.5 ug/l 24-Apr-17 Coles Well Treated Treated Barium (Ba) 135 ug/l 24-Apr-17 Coles Well Treated Treated Boron (B) 89 ug/l 24-Apr-17 Coles Well Treated Treated Cadmium (Cd) < ug/l 24-Apr-17 Coles Well Treated Treated Chromium (Cr) 0.51 ug/l 24-Apr-17 Coles Well Treated Treated Fluoride (F-) 0.12 mg/l 24-Apr-17 Coles Well Treated Treated *Lead (Pb) 0.03 ug/l 24-Apr-17 Coles Well Treated Treated Mercury (Hg) 0.01 < ug/l 24-Jan-17 Coles Well Treated Treated Nitrate (N) (NO3) 0.01 mg/l 24-Apr-17 Coles Well Treated Treated Nitrate (N) (NO3) mg/l 25-Jul-17 Coles Well Treated Treated Nitrate (N) (NO3) < mg/l 19-Oct-17 Coles Well Treated Treated Nitrate (N) (NO3) < mg/l 24-Jan-17 Coles Well Treated Treated Nitrite (N) (NO2) < mg/l 24-Apr-17 Coles Well Treated Treated Nitrite (N) (NO2) < mg/l 25-Jul-17 Coles Well Treated Treated Nitrite (N) (NO2) < mg/l 19-Oct-17 Coles Well Treated Treated Nitrite (N) (NO2) < mg/l 24-Apr-17 Coles Well Treated Treated Selenium (Se) 0.04 < ug/l 24-Apr-17 Coles Well Treated Treated Sodium (Na) 12.8 mg/l 24-Apr-17 Coles Well Treated Treated Uranium (U) ug/l * The lead testing summarized in this table is separate from the requirements of Regulation 170/03, Schedule 15.1, and has not been completed to satisfy any regulatory requirements. The lead results presented above are for supplemental information purposes only. Summary of Organic parameters sampled during this reporting period or the most recent sample results Date Location Type Parameter ed Results Unit Exceedance 24-Apr-17 Coles Well Treated Treated 1, 1-Dichloroethylene 0.33 < ug/l 24-Apr-17 Coles Well Treated Treated 1, 2 - Dichloroethane 0.35 < ug/l 24-Apr-17 Coles Well Treated Treated 1, 2-Dichlorobenzene 0.41 < ug/l 24-Apr-17 Coles Well Treated Treated 1, 4-Dichlorobenzene 0.36 < ug/l 2,3,4,6-24-Apr-17 Coles Well Treated Treated Tetrachorophenol 0.20 < ug/l 24-Apr-17 Coles Well Treated Treated 2,4 - D 0.19 < ug/l 24-Apr-17 Coles Well Treated Treated 2,4 - Dichlorophenol 0.15 < ug/l Page 5 of 9

6 2,4,6-24-Apr-17 Coles Well Treated Treated Trichlorophenol 0.25 < ug/l 24-Apr-17 Coles Well Treated Treated Alachlor 0.02 < ug/l Atrazine + N- 24-Apr-17 Coles Well Treated Treated dealkylated metabolites 0.01 < ug/l 24-Apr-17 Coles Well Treated Treated Azinphos-methyl 0.05 < ug/l 24-Apr-17 Coles Well Treated Treated Benzene 0.32 < ug/l 24-Apr-17 Coles Well Treated Treated Benzo(a)pyrene < ug/l 24-Apr-17 Coles Well Treated Treated Bromoxynil 0.33 < ug/l 24-Apr-17 Coles Well Treated Treated Carbaryl 0.05 < ug/l 24-Apr-17 Coles Well Treated Treated Carbofuran 0.01 < ug/l 24-Apr-17 Coles Well Treated Treated Carbon Tetrachloride 0.16 < ug/l 24-Apr-17 Coles Well Treated Treated Chlorpyrifos 0.02 < ug/l 24-Apr-17 Coles Well Treated Treated Diazinon 0.02 < ug/l 24-Apr-17 Coles Well Treated Treated Dicamba 0.20 < ug/l 24-Apr-17 Coles Well Treated Treated Dichloromethane 0.35 < ug/l 24-Apr-17 Coles Well Treated Treated Diclofop-methyl 0.40 < ug/l 24-Apr-17 Coles Well Treated Treated Dimethoate 0.03 < ug/l 24-Apr-17 Coles Well Treated Treated Diquat 1 < ug/l 24-Apr-17 Coles Well Treated Treated Diuron 0.03 < ug/l 24-Apr-17 Coles Well Treated Treated Glyphosate 1 < ug/l 24-Apr-17 Coles Well Treated Treated Malathion 0.02 < ug/l 24-Apr-17 Coles Well Treated Treated MCPA < mg/l 24-Apr-17 Coles Well Treated Treated Metolachlor 0.01 < ug/l 24-Apr-17 Coles Well Treated Treated Metribuzin 0.02 < ug/l 24-Apr-17 Coles Well Treated Treated Monochlorobenzene 0.3 < ug/l 24-Apr-17 Coles Well Treated Treated Paraquat 1 < ug/l 24-Apr-17 Coles Well Treated Treated Pentachlorophenol 0.15 < ug/l 24-Apr-17 Coles Well Treated Treated Phorate 0.01 < ug/l 24-Apr-17 Coles Well Treated Treated Picloram 1 < ug/l 24-Apr-17 Coles Well Treated Treated Prometryn 0.03 < ug/l 24-Apr-17 Coles Well Treated Treated Simazine 0.01 < ug/l 24-Apr-17 Coles Well Treated Treated Terbufos 0.01 < ug/l 24-Apr-17 Coles Well Treated Treated Tetrachloroethylene 0.35 < ug/l 24-Apr-17 Coles Well Treated Treated Total PCB 0.04 < ug/l 24-Apr-17 Coles Well Treated Treated Triallate 0.01 < ug/l 24-Apr-17 Coles Well Treated Treated Trichloroethylene 0.44 < ug/l 24-Apr-17 Coles Well Treated Treated Trifluralin 0.02 < ug/l 24-Apr-17 Coles Well Treated Treated Vinyl Chloride 0.17 < ug/l Page 6 of 9

7 List any Inorganic or Organic parameter(s) that exceeded half the standard prescribed in Schedule 2 of Ontario Drinking Water Quality Standards. Parameter Result Value Unit of Measure Date of N/A N/A N/A N/A ISLAND LAKE PUMP HOUSE TREATED WATER: (Point of entry sample results) Summary of Inorganic parameters tested during this reporting period or the most recent sample results Date Location Type Parameter ed Results Unit Exceedance 16-Mar-17 Island Lake Well Treated Treated Antimony (Sb) 0.02 < ug/l 16-Mar-17 Island Lake Well Treated Treated Arsenic (As) 6.9 ug/l 16-Mar-17 Island Lake Well Treated Treated Barium (Ba) 115 ug/l 16-Mar-17 Island Lake Well Treated Treated Boron (B) 275 ug/l 16-Mar-17 Island Lake Well Treated Treated Cadmium (Cd) < ug/l 16-Mar-17 Island Lake Well Treated Treated Chromium (Cr) 0.55 ug/l 16-Mar-17 Island Lake Well Treated Treated Fluoride (F-) 0.19 mg/l 16-Mar-17 Island Lake Well Treated Treated *Lead (Pb) 0.02 ug/l 16-Mar-17 Island Lake Well Treated Treated Mercury (Hg) 0.01 < ug/l 16-Mar-17 Island Lake Well Treated Treated Nitrate (N) (NO3) < mg/l 27-Jun-17 Island Lake Well Treated Treated Nitrate (N) (NO3) mg/l 21-Sep-17 Island Lake Well Treated Treated Nitrate (N) (NO3) mg/l 21-Dec-17 Island Lake Well Treated Treated Nitrate (N) (NO3) mg/l 16-Mar-17 Island Lake Well Treated Treated Nitrite (N) (NO2) < mg/l 27-Jun-17 Island Lake Well Treated Treated Nitrite (N) (NO2) mg/l 21-Sep-17 Island Lake Well Treated Treated Nitrite (N) (NO2) < mg/l 21-Dec-17 Island Lake Well Treated Treated Nitrite (N) (NO2) < mg/l 16-Mar-17 Island Lake Well Treated Treated Selenium (Se) 0.04 < ug/l 16-Mar-17 Island Lake Well Treated Treated Sodium (Na) 22.7 mg/l Yes 16-Mar-17 Island Lake Well Treated Treated Uranium (U) ug/l * The lead testing summarized in this table is separate from the requirements of Regulation 170/03, Schedule 15.1, and has not been completed to satisfy any regulatory requirements. The lead results presented above are for supplemental information purposes only. Summary of Organic parameters sampled during this reporting period or the most recent sample results Date Location Type Parameter ed Results Unit Exceedance 16-Mar-17 Island Lake Well Treated Treated 1, 1-Dichloroethylene 0.33 < ug/l 16-Mar-17 Island Lake Well Treated Treated 1, 2 - Dichloroethane 0.35 < ug/l 16-Mar-17 Island Lake Well Treated Treated 1, 2-Dichlorobenzene 0.41 < ug/l Page 7 of 9

8 16-Mar-17 Island Lake Well Treated Treated 1, 4-Dichlorobenzene 0.36 < ug/l 2,3,4,6-16-Mar-17 Island Lake Well Treated Treated Tetrachorophenol 0.20 < ug/l 16-Mar-17 Island Lake Well Treated Treated 2,4 - D 0.19 < ug/l 16-Mar-17 Island Lake Well Treated Treated 2,4 - Dichlorophenol 0.15 < ug/l 2,4,6-16-Mar-17 Island Lake Well Treated Treated Trichlorophenol 0.25 < ug/l 16-Mar-17 Island Lake Well Treated Treated Alachlor 0.02 < ug/l Atrazine + N- 16-Mar-17 Island Lake Well Treated Treated dealkylated metabolites 0.01 < ug/l 16-Mar-17 Island Lake Well Treated Treated Azinphos-methyl 0.05 < ug/l 16-Mar-17 Island Lake Well Treated Treated Benzene 0.32 < ug/l 16-Mar-17 Island Lake Well Treated Treated Benzo(a)pyrene < ug/l 16-Mar-17 Island Lake Well Treated Treated Bromoxynil 0.33 < ug/l 16-Mar-17 Island Lake Well Treated Treated Carbaryl 0.05 < ug/l 16-Mar-17 Island Lake Well Treated Treated Carbofuran 0.01 < ug/l 16-Mar-17 Island Lake Well Treated Treated Carbon Tetrachloride 0.16 < ug/l 16-Mar-17 Island Lake Well Treated Treated Chlorpyrifos 0.02 < ug/l 16-Mar-17 Island Lake Well Treated Treated Diazinon 0.02 < ug/l 16-Mar-17 Island Lake Well Treated Treated Dicamba 0.20 < ug/l 16-Mar-17 Island Lake Well Treated Treated Dichloromethane 0.35 < ug/l 16-Mar-17 Island Lake Well Treated Treated Diclofop-methyl 0.40 < ug/l 16-Mar-17 Island Lake Well Treated Treated Dimethoate 0.03 < ug/l 16-Mar-17 Island Lake Well Treated Treated Diquat 1 < ug/l 16-Mar-17 Island Lake Well Treated Treated Diuron 0.03 < ug/l 16-Mar-17 Island Lake Well Treated Treated Glyphosate 1 < ug/l 16-Mar-17 Island Lake Well Treated Treated Malathion 0.02 < ug/l 16-Mar-17 Island Lake Well Treated Treated MCPA < mg/l 16-Mar-17 Island Lake Well Treated Treated Metolachlor 0.01 < ug/l 16-Mar-17 Island Lake Well Treated Treated Metribuzin 0.02 < ug/l 16-Mar-17 Island Lake Well Treated Treated Monochlorobenzene 0.3 < ug/l 16-Mar-17 Island Lake Well Treated Treated Paraquat 1 < ug/l 16-Mar-17 Island Lake Well Treated Treated Pentachlorophenol 0.15 < ug/l 16-Mar-17 Island Lake Well Treated Treated Phorate 0.01 < ug/l 16-Mar-17 Island Lake Well Treated Treated Picloram 1 < ug/l 16-Mar-17 Island Lake Well Treated Treated Prometryn 0.03 < ug/l 16-Mar-17 Island Lake Well Treated Treated Simazine 0.01 < ug/l 16-Mar-17 Island Lake Well Treated Treated Terbufos 0.01 < ug/l 16-Mar-17 Island Lake Well Treated Treated Tetrachloroethylene 0.35 < ug/l 16-Mar-17 Island Lake Well Treated Treated Total PCB 0.04 < ug/l 16-Mar-17 Island Lake Well Treated Treated Triallate 0.01 < ug/l 16-Mar-17 Island Lake Well Treated Treated Trichloroethylene 0.44 < ug/l Page 8 of 9

9 16-Mar-17 Island Lake Well Treated Treated Trifluralin 0.02 < ug/l 16-Mar-17 Island Lake Well Treated Treated Vinyl Chloride 0.17 < ug/l List any Inorganic or Organic parameter(s) that exceeded half the standard prescribed in Schedule 2 of Ontario Drinking Water Quality Standards. Parameter Result Value Unit of Measure Date of N/A N/A N/A N/A Summary of Organic parameters (Total Trihalomethanes) sampled in the distribution system during this reporting period or the most recent sample results Date Location Type Parameter ed Results Unit Exceedance 24-Jan-17 4 Purple Rd. SS Distribution Total Trihalomethanes 36 ug/l First Quarter Average 36 ug/l 24-Apr-17 4 Purple Rd. SS Distribution Total Trihalomethanes 18 ug/l Second Quarter Average 18 ug/l 25-Jul-17 4 Purple Rd. SS Distribution Total Trihalomethanes 90 ug/l Third Quarter Average 90 ug/l 19-Oct-17 4 Purple Rd. SS Distribution Total Trihalomethanes 22 ug/l Fourth Quarter Average 22 ug/l Mean of 4 Quarterly Results 41.5 ug/l Page 9 of 9