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

Transcription

1 Drinking-Water System Number: Drinking-Water System Name: Well Supply Drinking-Water System Owner: Region of Peel Drinking-Water System Category: Large Municipal Residential Period being reported: January 1, 2007 to December 31, 2007 Complete if your Category is Large Municipal Residential or Small Municipal Residential Does your Drinking-Water System serve more than 10,000 people? Yes [ ] No [ x ] Is your annual report available to the public at no charge on a web site on the Internet? Yes [ x ] No [ ] Location where Summary Report required under O. Reg. 170/03 Schedule 22 will be available for inspection. 10 Peel Centre Drive, 4 th floor Brampton, Ontario L6T 4B9 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 [ ] No [ ] 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 [ ] No [ ] 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 None 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 [ ] No [ x ] 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 [ x ] Public access/notice via Public Request Page 1 of 8

2 Describe your Drinking-Water System is a groundwater supply system consisting of two wells; Well #3 and # 4, servicing the community in the Town of Caledon. The groundwater drawn from Well #3 is pumped through ultra violet (UV) disinfection equipment and disinfection contact chambers then to be delivered to consumers through the water distribution system. The groundwater drawn from #4 is pumped through greensand filtration and disinfected with chlorine then to be delivered to consumers through the water distribution system. Surplus water is stored in a 3.7 million-litre (810 thousand-gallon) reservoir connected to the water distribution system, as well as a 2.2million-litre (474 thousandgallon) standpipe. The population served in and Mono Mills is approximately 2922 (as of March 2007). Groundwater Treatment and Supply Pump House No. 3 Well 3 is 254mm in diameter and 32m deep with a well screen length of 6.1m equipped with a submersible pump with rated capacity of 23.1L/s. An ultraviolet (UV) disinfections system for treating Well No.3 raw water only, consists of two UV units each rated at 23.4 L/s. A sodium hypochlorite feed system consisting of two (2) pumps (one duty, one standby) rated at approximately 0.7 L/hr, a 400 L sodium hypochlorite solution tank with spill containment. Wells are equipped with on-line continuous chlorine residual analyzers to sample residual at pre and post chlorine contact tank and on-line continuous turbidity analyzers to sample at the raw water header and treated water after the 10 m3 chlorine contact tank. Flow meters are located at well pump discharge, pre-contact chamber prior to discharging into the distribution system and the domestic feed line. A 135 kw standby diesel generator set which provides power in the event of a power failure. Well Pump House No.4 Well 4 is 610mm in diameter and 77m deep with a well screen of length 13.7m equipped with a submersible well water pump with a rated capacity of 38L/s. Greensand filtration system for iron removal consisting of 3 filter vessels each rated at 19 L/s. An ultraviolet (UV) disinfection system for treating Well No.4 raw water only, consisting of two (2) units each rated at 38 L/s. A 55 m3 backwash holding tank complete with one (1) supernatant pump rated at 3.8 L/s to pump supernatant to waste and to recycle supernatant back to the head of the filtration system, and one (1) sludge transfer pump rated at 5 L/s to pump sludge from the tank to be hauled off site. A pre-filtration sodium hypochlorite system consisting of two (2) pumps each rated at 0.7L/hr, a 400L sodium hypochlorite solution tank with spill containment, and all piping and valves necessary for dosing into the Well 4 raw water header. A 12.6 m3 chlorine contact tank is located on site. Pre and post-filtration chlorine residual analyzers and Turbidity analyzers that sample effluent pipe, discharge header, treated water header and supernatant discharge return line are continuously monitoring the station water quality. A 230 kw diesel generator set to power facility in the event of a power failure. Flow meters are located at well pump discharge, iron filters, supernatant discharge, domestic/backwash feed line, and precontact chamber prior to discharging to the distribution system to monitor and record station water flows and volumes of water produced.. Page 2 of 8

3 List all water treatment chemicals used over this reporting period Sodium Hypochlorite Sodium Bisulphate Sodium Silicate Were any significant expenses incurred to? [ x ] Install required equipment [ x ] Repair required equipment Please provide a brief description and a breakdown of monetary expenses incurred Significant Installations Approximate Expenditure Sample Hydrant Installations $18,000 Wells 3 and 4 Upgrades $1,815,000 Significant Repairs Approximate Expenditure Wells Repair & Maintenance $27,840 Watermain Breaks $7489 Fire Hydrant Repairs $7,335 Water Service Repairs $4116 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 Parameter Unit of Corrective Action Corrective Measure April 24, 2007 Sodium (Na) 37.9 mg/l Re-sample and retest, results confirmed elevated sodium level Action Date April 27, 2007 Microbiological testing done under the Schedule 10, 11 or 12 of Regulation 170/03, during this reporting period. Number Number of of HPC Samples Samples Range of E.Coli Or Fecal s (min #)-(max #) Range of Total Coliform s (min #)-(max #) Range of HPC s (min #)-(max #) Well #3 Raw Well #3 Treated Page 3 of 8

4 Well #4 Raw Well #4 Treated Distribution Date of legal instrument issued Operational testing done under Schedule 7, 8 or 9 of Regulation 170/03 during the period covered by this Annual Report. Number of Well Grab #3 Range of s Samples (min#) (max#) Distribution Range of s (min #)-(max #) Well #4 Range of s (min#) (max#) Turbidity (NTU) 8760 N/A Chlorine (mg/l) Fluoride N/A N/A N/A N/A Summary of additional testing and sampling carried out in accordance with the requirement of an approval, order or other legal instrument. Parameter Date Sampled Well #3 Well #4 Cell #1 Cell #2 s Monomills Standpipe Not sampled for R2A Unit of Measure CofA 22/11/05 R2A 02-Jan cfu/100ml 10-Jan cfu/100ml 15-Jan cfu/100ml 22-Jan cfu/100ml 29-Jan cfu/100ml 05-Feb cfu/100ml 12-Feb cfu/100ml 19-Feb cfu/100ml 20-Feb cfu/100ml 26-Feb cfu/100ml 05-Mar cfu/100ml 12-Mar cfu/100ml 19-Mar-07 2 out of service cfu/100ml 26-Mar-07 2 cfu/100ml 02-Apr cfu/100ml 10-Apr cfu/100ml 17-Apr cfu/100ml 24-Apr cfu/100ml 01-May cfu/100ml 08-May cfu/100ml Page 4 of 8

5 15-May cfu/100ml 22-May cfu/100ml 29-May out of service cfu/100ml 05-Jun cfu/100ml 12-Jun cfu/100ml 19-Jun cfu/100ml 26-Jun cfu/100ml 03-Jul cfu/100ml 10-Jul cfu/100ml 17-Jul cfu/100ml 24-Jul cfu/100ml 31-Aug cfu/100ml 08-Aug cfu/100ml 14-Aug cfu/100ml 21-Aug cfu/100ml 28-Aug cfu/100ml 05-Sep cfu/100ml 11-Sep cfu/100ml 18-Sep cfu/100ml 25-Sep cfu/100ml 02-Oct cfu/100ml 10-Oct cfu/100ml 16-Oct cfu/100ml 23-Oct cfu/100ml 30-Oct cfu/100ml 06-Nov cfu/100ml 13-Nov cfu/100ml 21-Nov cfu/100ml 27-Nov cfu/100ml 04-Dec cfu/100ml 11-Dec cfu/100ml 18-Dec cfu/100ml R2A test includes use of sensitive medium for the determination of the heterotrophic total bacterial count in drinking water. R2A is especially suitable for the recovery of stressed and chlorine-tolerant bacteria from drinking water. Date of legal instrument issued CofA 22/11/05 Parameter AOC Date Sampled Caledon Village Well #3 Caledon Village Well #4 Caledon Village Cell #1 Caledon Village Cell #1 Monomills Standpipe Unit of Measure ugaoc/l 02-Jan Feb ugaoc/l 05-Mar ugaoc/l Page 5 of 8

6 02-Apr -07 no sample ugaoc/l 01-May ugaoc/l 05-Jun ugaoc/l 03-Jul ugaoc/l 08-Aug ugaoc/l 05-Sep ugaoc/l 02-Oct ugaoc/l 06-Nov ugaoc/l AOC - The assailable organic carbon (AOC) test is a standardized measure of the bacterial growth potential of treated water. Summary of Inorganic parameters tested during this reporting period or the most recent sample results Parameter Sample Date Value Well #3 Value Well #4 Unit of Measure Exceedance Antimony 01/05/ ug/l No Arsenic 25/05/07 <0.823 <0.823 ug/l No Barium 25/04/ <0.003 mg/l No Boron 25/04/ mg/l No Cadmium 14/05/07 ND ND mg/l No Chromium 25/04/ mg/l No Lead 27/04/07 <0.432 <0.432 ug/l No Mercury 14/05/07 ND ND mg/l No Selenium 26/04/07 <0.588 <0.588 ug/l No Sodium 24/04/ mg/l Yes Uranium 14/05/ mg/l No Fluoride 25/04/07 <0.065 <0.065 mg/l No Nitrite 18/10/07 <0.017 <0.017 mg/l as N No Nitrate 18/10/ <0.020 mg/l as N No Summary of Organic parameters sampled during this reporting period or the most recent sample results Parameter Sample Value Value Unit of Exceedance Date Well #3 Well #4 Measure Alachlor 16/05/07 ND ND ug/l No Aldicarb 28/05/07 ND ND ug/l No Aldrin + Dieldrin 16/05/07 ND ND ug/l No Atrazine + N-dealkylated metobolites 04/06/07 ND ND ug/l No Azinphos-methyl 09/05/07 ND ND ug/l No Bendiocarb 25/05/07 ND ND ug/l No Benzene 14/05/07 ND ND ug/l No Benzo(a)pyrene 22/05/07 ND ND ug/l No Page 6 of 8

7 Bromoxynil 25/04/07 ND ND ug/l No Carbaryl 25/05/07 ND ND ug/l No Carbofuran 25/05/07 ND ND ug/l No Carbon Tetrachloride 14/05/07 ND ND ug/l No Chlordane (Total) 16/05/07 ND ND ug/l No Chlorpyrifos 09/05/07 ND ND ug/l No Cyanazine 25/05/07 ND ND ug/l No Diazinon 25/05/07 ND ND ug/l No Dicamba 25/04/07 ND ND ug/l No 1,2-Dichlorobenzene 14/05/07 ND ND ug/l No 1,4-Dichlorobenzene 14/05/07 ND ND ug/l No Dichlorodiphenyltrichloro ethane (DDT)+metabolites 16/05/07 ND ND ug/l No 1,2-Dichloroethane 14/05/07 ND ND ug/l No 1,1-Dichloroethylene (vinylidene chloride) 15/05/07 ND ND ug/l No Dichloromethane 14/05/07 ND ND ug/l No 2-4 Dichlorophenol 17/05/07 ND ND ug/l No 2,4-Dichlorophenoxy acetic acid (2,4-D) 25/04/07 ND ND ug/l No Diclofop-methyl 25/04/07 ND ND ug/l No Dimethoate 09/05/07 ND ND ug/l No Dinoseb 25/04/07 ND ND ug/l No Diquat 14/05/07 ND ND ppb No Diuron 25/05/07 ND ND ug/l No Glyphosate 14/05/07 ND ND ug/l No Heptachlor + Heptachlor Epoxide 16/05/07 ND ND ug/l No Lindane (Total) 24/05/07 ND ND ug/l No Malathion 25/05/07 ND ND ug/l No Methoxychlor 16/05/07 ND ND ug/l No Metolachlor 16/05/07 ND ND ug/l No Metribuzin 25/05/07 ND ND ug/l No Monochlorobenzene 14/05/07 ND ND ug/l No Paraquat 14/05/07 ND ND ppb No Parathion 09/05/07 ND ND ug/l No Pentachlorophenol 17/05/07 ND ND ug/l No Phorate 09/05/07 ND ND ug/l No Picloram 29/05/07 ND ND ug/l No Polychlorinated Biphenyls(PCB) 29/05/07 ND ND ug/l No Prometryne 25/05/07 ND ND ug/l No Simazine 25/05/07 ND ND ug/l No Page 7 of 8

8 THM (NOTE: show latest annual average) Jan 1 Dec 31, (annual running average, distribution system) ug/l Temephos 09/05/07 ND ND ug/l No Terbufos 09/05/07 ND ND ug/l No Tetrachloroethylene 14/05/07 ND ND ug/l No 2,3,4,6-Tetrachlorophenol 17/05/07 ND ND ug/l No Triallate 25/05/07 ND ND ug/l No Trichloroethylene 14/05/07 ND ND ug/l No 2,4,6-Trichlorophenol 17/05/07 ND ND ug/l No No 25/04/07 ND ND ug/l No 2,4,5-Trichlorophenoxy acetic acid (2,4,5-T) Trifluralin 25/05/07 ND ND ug/l No Vinyl Chloride 14/05/07 ND ND ug/l No List any Inorganic or Organic parameter(s) that exceeded half the standard prescribed in Schedule 2 of Ontario Drinking Water Quality Standards. Parameter Value Unit of Measure Date of Sample None NA NA NA Page 8 of 8