DWQMS Form Sault Ste. Marie DWS Annual & Summary Reports 2016

Transcription

1 SAULT STE. MARIE DRINKING WATER SYSTEM WATERWORKS # ANNUAL & SUMMARY REPORTS 2016 Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 1 of 19

2 Introduction This Annual and Summary Report has been prepared in accordance with both section 11 and Schedule 22 of Ontario Regulation 170/03. The requirements of the regulation for each report have been consolidated into a single document. This Report is intended to brief the owner and consumers of the Sault Ste. Marie Drinking Water System on the system s performance over the past calendar year January 1 to December 31, This report encompasses all elements as required by O. Reg. 170/03. Each section explains what is required for the category Large Municipal Residential DWS (as it pertains to the Sault Ste. Marie DWS) and how limits were met, or if shortfalls were revealed. The last section contains a list of tables and definition of terms identified in this report. System Description Page 3 Water Quality Page 5 Compliance Page 12 Flows Page 13 Report Availability Page 18 Tables, Definition of Terms Page 19 App: A/B Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 2 of 19

3 System Description PUC Services Inc. operates, maintains and manages the Sault Ste. Marie drinking water system on behalf of the City s Public Utilities Commission. The PUC Services Inc. business office is located at 500 Second Line East. Regular business hours are 09:00 to 16:30, Monday to Friday. The telephone number is (705) The PUC Water Treatment Operations Control Centre is located at the A.S. Boniferro Water Filtration Plant, 2059 Second Line West. The licensed operators at this facility monitor and control all aspects of water production and quality, through the use of a computer based control system. Water for Sault Ste. Marie is obtained from two principle sources: surface water from Lake Superior and ground water from six deep wells. Raw water from the intake at Gros Cap is pumped to the water treatment plant where a process of filtration and chlorination prepares the water for consumption. Water from the deep wells is chlorinated prior to being pumped to the distribution system. On a typical day our customers consume about 30,000 cubic metres of water. Three water storage reservoirs located in the distribution system hold up to 52,000 cubic metres of water (or 1-1/2 daysaverage consumption). Chemicals Chemicals utilized in the Sault Ste. Marie Treatment facilities plant during 2016 include: SSM WTP: o Aluminum Sulfate for filtration coagulation o Chlorine gas for disinfection o Blended Phosphates for corrosion control o Soda Ash for ph stabilization Goulais Pump Station: o Chlorine gas for disinfection o Blended Phosphates for corrosion control Steelton Pump Station: o Chlorine gas for disinfection o Blended Phosphates for corrosion control Shannon Pump Station: o Chlorine gas for disinfection o Blended Phosphates for corrosion control o Carbon Dioxide Gas for ph stabilization Lorna Pump Station: o Chlorine gas for disinfection o Blended Phosphates for corrosion control o Carbon Dioxide Gas for ph stabilization Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 3 of 19

4 2016 Expenditures During the year of 2016, expenses were incurred to maintain treatment and distribution functions: SSM WTP and Well Sites: o Chemical metering pumps, turbidimeter controllers, flow control valves, ph probes, chlorine sensors, ultrasonic controllers, pressure transmitters, back flow valves, pumps and components, electrical components, batteries, chlorinator upgrades, lab equipment for water quality testing Distribution System: o Repairs were made to 70 main breaks recorded in Drinking Water System Changes Form 1 Record of Watermains Authorized as a Future Alteration o MOE Form 1 - Coulson Avenue o MOE Form 1 - Gore Street o MOE Form 1 - Albert & John o MOE Form 1 - Second Avenue o MOE Form 1 - Francis Street o MOE Form 1 - Irwin & Tuckett Form 2 Record of Minor Modification or Replacements o n/a Form 3 Record of addition, modification or replacement of equipment discharging a contaminant of concern to the atmosphere o n/a Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 4 of 19

5 Water Quality Microbiological Sampling and Testing Sampling is conducted weekly for the DWS at the frequencies and locations identified by Schedule 10 of O.Reg 170/03 for Large Municipal Residential Systems. Table 1: Microbiological sampling requirements Location Sample Analysis # Frequency Raw EC / TC each source weekly Treated EC / TC / HPC each source weekly Distribution EC / TC/ HPC-25% 83 monthly Sault Ste. Marie s raw and treated are collected from each of the six production wells (Goulais 1&2, Steelton, Shannon and Lorna 1&2) and the WTP surface water source. Distribution sampling sites are from locations throughout the system not limited to but including: West WW Plant, Crimson Ridge, Zone 2, Zone 3, Peoples Rd, Sub 13, Zone 1, Davey Home, Sub 4, Sub 21, Dryland, Queen E, Sub 17, Sub 15, Bus Barns, City Hall, and OGRR PRV Station. Table 1a: Microbiological Sample Results # EC TC SSM WTP # HPC HPC Raw Treated * 0-13 Distribution *One sample not analyzed for HPC data contamination suspected *Well are collected only during weeks of production # EC TC # HPC Goulais 1 HPC Raw Treated Goulais 2 # EC TC # HPC HPC Raw Treated * 0-9 Steelton # EC TC # HPC HPC Raw Treated Shannon # EC TC # HPC HPC Raw Treated Lorna 1 # EC TC # HPC HPC Raw Treated Lorna Pump Station remained off-line during 2016 Lorna 2 # EC TC # HPC HPC Raw Treated Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 5 of 19

6 Operational Checks and Testing Operational testing has been completed as per Schedule 7 of O. Reg. 170/03, as a Large Municipal Residential System. These checks and testing are conducted on site at the water treatment facility by licensed operators. Continuous monitoring analyzers are utilized for measurement of filter turbidity and chlorine residuals. Table 2: Monthly Filter Turbidity Results (SSM WTP) Turbidity Range (NTU) Month Filter #1 Filter #2 Filter #3 Filter #4 Monthly Filter % Efficiency Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Filter turbidity is monitored on SCADA in real time. Filter efficiency is calculated by tracking the readings on five minute intervals above and below 0.30 NTU during filter run time. Sault Ste. Marie maintained filter compliance each month above 95%, the required limit for dual media filtration to achieve necessary filtration credits for primary disinfection. Table 3: Chlorine Residuals (Treatment Sites) Month WTP Cl. Residual Range (mg/l) Goulais Cl. Residual Range (mg/l) Steelton Cl. Residual Range (mg/l) Shannon Cl. Residual Range (mg/l) Lorna Cl. Residual Range (mg/l) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Chlorine residuals are continuously monitored and tracked on real time in SCADA and recorded on five minute intervals for reporting purposes. Lorna Pump Station remained off-line for the entire year, although kept available for service if required. Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 6 of 19

7 Chemical Sampling and Testing Schedule 13 of O. Reg. 170/03 outlines chemical sampling regiments for Large Municipal Residential systems. Annual sampling of Schedule 23 (inorganics) and 24 (organics) is completed, as well as quarterly sampling for Nitrites/Nitrates and THM s. Sodium and fluoride are required every 60 months. Schedule 15.1 outlines the requirements for semi-annual lead testing (2 periods per year). Table 4: Schedule 23 - Inorganics Parameter WTP Goulais #1 Goulais #2 Steelton Shannon Lorna ODWS Antimony <0.60 <0.60 <0.60 <0.60 < Arsenic <1.0 <1.0 <1.0 < Barium < Boron <50 <50 <50 < Cadmium <0.10 <0.10 <0.1 <0.1 < Chromium < < *Fluoride Mercury <0.10 <0.10 <0.1 <0.1 < Selenium <1.0 <1.0 <1.0 <1.0 < *Sodium / Uranium <2.0 <2.0 <2.0 < Table 4 results are reported in µg/l, except for *Fluoride and Sodium results as (mg/l). All results for inorganic parameters are within the maximum acceptable concentrations (MAC) of the Ontario Drinking Water Quality Standards as defined in O.Reg 169/03 with the exception of sodium for the Shannon well. Sodium has an aesthetic objective (AO) of 200 mg/l, but has a limit of 20 mg/l for medical reasons and would require notifications if exceeded. Table 5: Nitrite/Nitrate Results Nitrite Nitrate WTP Goulais #1 Goulais #2 Steelton Shannon Lorna ODWS Q1 NO 2 <0.01 <0.01 <0.010 <0.010 < NO < Q2 NO 2 <0.01 <0.01 <0.01 <0.01 < NO < Q3 NO 2 <0.01 <0.01 <0.01 <0.01 < NO < Q4 NO 2 <0.01 <0.01 <0.01 <0.01 < NO < unit mg/l mg/l mg/l mg/l mg/l mg/l mg/l All quarterly results for Nitrites and Nitrates are well below ODWS. Table 5a: THM Results Parameter Sub 4 Sub 15 ODWS Q1 THM Q2 THM 7.5 < Q3 THM Q4 THM RAA THM unit µg/l µg/l µg/l Running annual average (RAA) is calculated by using the average results tested each quarter. All quarterly results for THM s are well below ODWS. Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 7 of 19

8 Table 6: Schedule 24 Organics WTP Parameter Date Result Unit ODWS Alachlor 19-Jan-16 <0.10 µg/l 5 Atrazine + N-dealkylated metabolites 19-Jan-16 <0.20 µg/l 5 Azinphos-methyl 19-Jan-16 <0.10 µg/l 20 Benzene 19-Jan-16 <0.50 µg/l 5 Benzo(a)pyrene 19-Jan-16 <0.01 µg/l 0.01 Bromoxynil 19-Jan-16 <0.20 µg/l 5 Carbaryl 19-Jan-16 <0.20 µg/l 90 Carbofuran 19-Jan-16 <0.20 µg/l 90 Carbon Tetrachloride 19-Jan-16 <0.50 µg/l 5 Chlorpyrifos 19-Jan-16 <0.10 µg/l 90 Diazinon 19-Jan-16 <0.10 µg/l 20 Dicamba 19-Jan-16 <0.20 µg/l 120 1,2-Dichlorobenzene 19-Jan-16 <0.50 µg/l 200 1,4-Dichlorobenzene 19-Jan-16 <0.50 µg/l 5 1,2-Dichloroethane 19-Jan-16 <0.50 µg/l 5 1,1-Dichloroethylene (vinylidene chloride) 19-Jan-16 <0.50 µg/l 14 Dichloromethane 19-Jan-16 <5.0 µg/l Dichlorophenol 19-Jan-16 <0.30 µg/l 900 2,4-Dichlorophenoxy acetic acid 19-Jan-16 <0.20 µg/l 100 Diclofop-methyl 19-Jan-16 <0.20 µg/l 9 Dimethoate 19-Jan-16 <0.10 µg/l 20 Diquat 19-Jan-16 <1.0 µg/l 70 Diuron 19-Jan-16 <1.0 µg/l 150 Parameter Date Result Result ODWS Glyphosate 19-Jan-16 <5.0 µg/l 280 Malathion 19-Jan-16 <0.10 µg/l Methyl-4- Chlorophenoxyacetic Acid 19-Jan-16 <0.20 µg/l 100 (MCPA) Metolachlor 19-Jan-16 <0.10 µg/l 50 Metribuzin 19-Jan-16 <0.10 µg/l 80 Monochlorobenzene 19-Jan-16 <0.50 µg/l 80 Paraquat 19-Jan-16 <1.0 µg/l 10 Pentachlorophenol 19-Jan-16 <0.50 µg/l 60 Phorate 19-Jan-16 <0.10 µg/l 2 Picloram 19-Jan-16 <0.20 µg/l 190 Polychlorinated Byphenols (PCB) 19-Jan-16 <0.035 µg/l 3 Prometryne 19-Jan-16 <0.10 µg/l 1 Simazine 19-Jan-16 <0.10 µg/l 10 Terbufos 19-Jan-16 <0.20 µg/l 1 Tetrachloroethylene 19-Jan-16 <0.50 µg/l 30 2,3,4,6- Tetrachlorophenol 19-Jan-16 <0.50 µg/l 100 Triallate 19-Jan-16 <0.10 µg/l 230 Trichloroethylene 19-Jan-16 <0.50 µg/l 5 2,4,6-Trichlorophenol 19-Jan-16 <0.50 µg/l 5 Trifluralin 19-Jan-16 <0.10 µg/l 45 Vinyl Chloride 19-Jan-16 <0.20 µg/l 2 All results are below the ODWS MAC and half MAC as per O.Reg. 169/03. Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 8 of 19

9 Table 7: Schedule 24 Organics West End Pump Stations Parameter Goulais Goulais Steelton 1 2 ODWS Alachlor <0.10 <0.10 < Atrazine + N-dealkylated metabolites <0.20 <0.20 < Azinphos-methyl <0.10 <0.10 < Benzene <0.50 <0.50 <0.5 5 Benzo(a)pyrene <0.010 <0.010 < Bromoxynil <0.20 <0.20 < Carbaryl <0.20 <0.20 < Carbofuran <0.20 <0.20 < Carbon Tetrachloride <0.50 <0.50 < Chlorpyrifos <0.10 <0.10 < Diazinon <0.10 <0.10 < Dicamba <0.20 <0.20 < ,2-Dichlorobenzene <0.50 <0.50 < ,4-Dichlorobenzene <0.50 <0.50 < ,2-Dichloroethane <0.50 <0.50 < ,1-Dichloroethylene (vinylidene chloride) <0.50 <0.50 < Dichloromethane <5.0 <5.0 < Dichlorophenol <0.30 <0.30 < ,4-Dichlorophenoxy acetic acid <0.20 <0.20 < Diclofop-methyl <0.20 <0.20 < Dimethoate <0.10 <0.10 < Diquat <1.0 <1.0 < Diuron <1.0 <1.0 < Glyphosate <5.0 <5.0 < Parameter Goulais 1 Goulais 2 Steelton Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 9 of 19 ODWS Malathion <0.10 <0.10 < Methyl-4- Chlorophenoxyacetic <0.20 <0.20 < Acid (MCPA) Metolachlor <0.10 <0.10 < Metribuzin <0.10 <0.10 < Monochlorobenzene <0.50 <0.50 < Paraquat <1.0 <1.0 < Pentachlorophenol <0.50 <0.5 < Phorate <0.10 <0.10 < Picloram <0.20 <0.20 < Polychlorinated Byphenols (PCB) <0.035 <0.035 < Prometryne <0.10 <0.10 < Simazine <0.10 <0.10 < Terbufos <0.20 <0.20 < Tetrachloroethylene <0.50 <0.50 < ,3,4,6- Tetrachlorophenol <0.50 <0.50 < Triallate <0.10 <0.10 < Trichloroethylene <0.50 <0.50 < ,4,6-Trichlorophenol <0.50 <0.50 < Trifluralin <0.10 <0.10 < Vinyl Chloride <0.20 <0.20 < All results are below the ODWS MAC and half MAC as per O.Reg. 169/03. All results are reported in µg/l. Goulais 1 was sampled January 19, Goulais 2 and Steelton wells were sampled on June 7, 2016.

10 Table 8: Schedule 24 Organics East End Pumps Stations Lorna Lorna Parameter Shannon 1 2 ODWS Alachlor < Atrazine + N-dealkylated metabolites < Azinphos-methyl < Benzene < Benzo(a)pyrene < Bromoxynil < Carbaryl < Carbofuran < Carbon Tetrachloride < Chlorpyrifos < Diazinon < Dicamba < ,2-Dichlorobenzene < ,4-Dichlorobenzene < ,2-Dichloroethane < ,1-Dichloroethylene (vinylidene chloride) < Dichloromethane < Dichlorophenol < ,4-Dichlorophenoxy acetic acid < Diclofop-methyl < Dimethoate < Diquat < Diuron < Parameter Lorna 1 Lorna 2 Shannon ODWS Glyphosate < Malathion < Methyl-4- Chlorophenoxyacetic Acid < (MCPA) Metolachlor < Metribuzin < Monochlorobenzene < Paraquat < Pentachlorophenol < Phorate < Picloram < Polychlorinated Byphenols (PCB) < Prometryne < Simazine < Terbufos < Tetrachloroethylene < ,3,4,6-Tetrachlorophenol < Triallate < Trichloroethylene < ,4,6-Trichlorophenol < Trifluralin < Vinyl Chloride < Lorna P/S was not placed in service in Shannon well was sampled on June 7, Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 10 of 19

11 Lead Sampling: The Ontario Drinking Water Standard for lead in drinking water is 10 ug/l. This applies to water at the point of consumption since lead is only present as a result of corrosion of lead solder, lead containing brass fittings or lead pipes which are found close to or in domestic plumbing and the service connection to buildings. Table 9: Lead Sampling Requirements Location Type Number of Sample Locations Plumbing - Residential 80 Plumbing Non Residential 8 Distribution 16 Lead are collected during two prescribed periods each year (Dec 14 Mar 15 and June 15- Oct 15). Sampling frequency and location types are defined in O. Reg. 170/03 Section 15.1 Table 9a: Community Lead Sampling Results Number of Range of Lead Location Type Sample Results Locations (min#) (max #) Number of Location Exceedances Plumbing - Residential Plumbing Non Residential Distribution In 2016, 16 of 252 plumbing sample locations or 6.3% of the tested sites exceeded the ODWS. Tests were done in homes with record of lead or suspected lead pipe this is a small subset of homes in Sault Ste. Marie. One distribution sample exceeded, re-sampling at the hydrant revealed results was non-detect. Providing clean, safe and reliable drinking water is a responsibility that PUC takes very seriously. Unfortunately the challenge of reducing the occurrence of lead in drinking water is something communities across North America are faced with. In Sault Ste. Marie, PUC employs a robust community water sampling program that monitors lead levels in drinking water. For the program to function as efficiently as possible, PUC has partnered with the SSM Innovation Centre and Algoma Public Health to develop a system that would focus lead testing on homes with suspected lead service pipes and that may have occupants that would be especially sensitive to lead exposure (ex. infants or expecting mothers). While it is beyond PUC s authority to replace lead services on a homeowner s property, if a home is found to have a lead service the PUC offers programs to consumers that will protect them from lead exposure. The preferred option provided to homeowners is an interest-free loan to help them replace their lead service lines. When an owner replaces their lead service line, PUC will replace the public portion of the service at no charge to the owner. Another option the PUC provides to consumers is to issue tap-mounted water filters (certified for lead reduction) at no charge to homes with results exceeding the standard until the service can be replaced, or changes to water treatment processes can be shown to satisfactorily reduce lead concentrations. In accordance with drinking water regulations PUC has implemented a Corrosion Control Plan (as part of the Water Quality Improvement Project) that is designed to reduce lead uptake in the drinking water. PUC is presently evaluating the long-term changes to the distribution system and water quality after implementing corrosion control plan. Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 11 of 19

12 Compliance Adverse Water Quality Incidents During 2016, the Sault Ste. Marie River DWS reported 5 incidents of adverse water quality. Table 10: Adverse Water Quality Incidents Date Incident Reported Low Chlorine (<0.05 mg/l) in the distribution Lead exceedance from a hydrant in distribution Sodium exceedance at Shannon pump station Temporary water system contaminated Total coliform present (private residence) March 17, 2016 low chlorine residual in distribution system (<0.05 mg/l), resolved by flushing hydrant. Long term corrections include installing new blow-off, adding to dead-end flushing program. April 15, sample results from a hydrant revealed an exceedance of lead (19.5ug/L). The hydrant was flushed and resampled on April 25 th, the results indicated non-detect. Jun 10, sample results from Shannon pump station revealed an exceedance of sodium (32.3 mg/l). This issue is recognized from similar historical results from this treated water source. Resampling was conducted June 14 th, 2016 with another exceedance (33.9 mg/l). June 30, 2016 contractor dug into temporary water supply creating potential for contamination. BWA in place, system repaired, disinfected, flushed, chlorine residuals restored and two sets bacteriological were collected - results non-detect. Sept 20, 2016 bacteriological sample results revealed positive detection of Total Coliform at a private residence. Resampling was conducted at the residence and in the distribution. All re- collected revealed results non-detect. Annual Drinking Water System Inspection The annual DWS inspection took place on February 25, 2016 by MOECC Drinking Water inspector Stephen Rouleau. There were no non-conformances, or additional recommendations and best practices identified. MOECC Risk Assessment Process Maximum Question Rating: 632 Table 11: MOECC Risk Assessment Rating Inspection Module Non-Compliance Rating Source 0/28 Capacity Assessment 0/30 Treatment Processes 0/110 Process Wastewater 0/28 Distribution System 0/14 Operations Manuals 0/28 Logbooks 0/152 Customer Relations 0/109 Certification and Training 0/0 Treatment Process Monitoring 0/130 TOTAL 0/632 Inspection Risk Rating 0.00% The DWS received a final inspection rating of 100% Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 12 of 19

13 Flows Municipal Drinking Water Works Permit: specifies maximum rated flows for the following sites: Table 12: Permit to Take Water Facility Permit to Take Water Gros Cap Pump Station 75,000 m 3 /d Goulais Pump Station 10,013 m 3 /d Steelton Pump Station 8,208 m 3 /d Shannon Pump Station 7,000 m 3 /d Lorna Pump Station 14,558.4 m 3 /d Chart 1: Five Year Flow Comparison 90,000 80,000 70,000 60,000 50,000 Sault Ste. Marie Average/ Maximum Production The Water Treatment Plant is currently rated at 40,000 m 3 /d based on CT values to meet requirements of primary disinfection. The available capacity for the Sault Ste. Marie is rated at 79,779 m 3 /d. The Lorna pump station has been shut down for water quality reasons but remains available for emergency demand if needed. The Sault Ste. Marie WTP and production Wells treated a total of 10,151,583 m 3 of water during the year of The average daily treated flow was 27,737 m 3, with a maximum daily flow was 41,776m 3 on August 10 th, ,000 30,000 20,000 10, Avg Max Rated Capacity Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 13 of 19

14 Table 13: WTP Raw and Treated Water Flows Raw Water Flows Treated Water Flows Month Raw Water (m 3 ) Minimum Maximum Average Treated Water (m 3 ) Minimum Maximum Average % Max. Flow of Rated Capacity January 379,782 9,887 15,111 12, ,866 8,308 16,074 12, February 367,401 10,819 14,491 12, ,897 9,337 16,307 12, March 379,853 9,178 15,532 12, ,359 8,197 15,044 12, April 374,626 10,625 15,194 12, ,295 7,920 16,370 12, May 454,565 11,181 17,391 14, ,860 8,296 18,482 14, June 476,506 11,502 20,884 15, ,821 8,945 23,702 15, July 489,138 11,848 24,738 15, ,020 9,541 22,609 15, August 488,679 11,144 25,029 15, ,753 8,591 25,655 15, September 409,906 10,527 17,339 13, ,982 7,261 17,863 13, October 388,287 9,461 15,410 12, ,471 7,389 17,285 11, November 354,973 10,381 13,808 11, ,178 7,436 14,802 11, December 343,323 10,008 12,534 11, ,668 6,705 13,385 10, Chart 2: Sault Ste. Marie WTP Flows Water Treatment Plant Flows Raw Treated 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 14 of 19

15 Table 14: Goulais Treated Water Flows Goulais #1 Water Flows Goulais #2 Water Flows % of % of Rate % of % of Rate Month Rated of Water Rated of Water Total Minimum Maximum Average Treated Minimum Maximum Average Capacity Taking Capacity Taking Volume Water (m 3 ) (m 3 using Max using Max /d) (m 3 ) (m 3 using Max using /d) Daily Daily Daily Max Daily Volume Volume Volume Volume January 1, ,644 2,862 3,090 3, February 1, ,097 3,020 3,058 3, March 1, ,810 2,572 3,205 3, April 1, ,879 3,011 3,068 3, May 5, , ,734 3,002 3,332 3, June 80, ,211 2, , ,041 1, July 160,304 5,047 5,190 5, , , August 151, ,173 4, , , September 1, , ,228 3, October 6, , ,279 2,856 3,033 2, November 1, ,603 2,999 3,346 3, December ,017 2,766 3,385 2, Chart 3: Goulais Pump Station Flows Goulais Pump Station Flows Goulais #1 Goulais #2 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 15 of 19

16 Table 15: Lorna Treated Water Flows Lorna #1 Water Flows Lorna #2 Water Flows Month January February March April May June July August September October November Total Volume (m 3 ) Minimum Maximum Average December Lorna Pump Station was not in service during in 2016 % of Rated Capacity using Max Daily Volume % of Rate of Water Taking using Max Daily Volume Treated Water (m 3 ) Minimum Maximum Average % of Rated Capacity using Max Daily Volume % of Rate of Water Taking using Max Daily Volume Chart 4: Lorna Pump Station Flows 2016 Lorna Pump Station Flows Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Lorna #1 Lorna #2 Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 16 of 19

17 Table 16: Steelton & Shannon Water Flows Steelton Water Flows Shannon Water Flows Month Total Volume (m 3 ) Minimum Maximum Average % of Rated Capacity using Max Daily Volume Treated Water (m 3 ) Minimum Maximum Average % of Rated Capacity using Max Daily Volume January 157,846 5,071 5,123 5, ,984 5,950 6,128 6, February 147,479 5,025 5,107 5, ,529 5,945 6,113 6, March 155,484 3,750 5,096 5, ,594 5,727 6,086 5, April 151,824 5,031 5,095 5, ,296 5,948 6,065 6, May 154,446 3,605 5,097 4, ,937 5,954 6,060 5, June 151,186 4,864 5,096 5, ,639 5,696 6,047 5, July 154,926 4,632 5,052 4, ,162 5,928 6,071 6, August 155,279 4,959 5,048 5, ,223 5,675 6,061 5, September 152,025 5,033 5,092 5, ,364 5,408 6,009 5, October 158,873 4,586 5,547 5, ,040 5,970 6,055 6, November 159,890 5,209 5,532 5, ,645 5,142 6,217 5, December 164,822 4,947 5,349 5, ,849 5,906 6,013 5, Chart 5: Steelton & Shannon Pump Station Flows Steelton & Shannon Pump Station Flows Steelton Shannon 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 17 of 19

18 Report Availability Annual Report Section 11 of O. Reg. 170/03 defines that this Annual Report must be given, without charge, to every person who requests a copy. Effective steps must also be taken to advise users of water from the system that copies of the report are available, without charge, and of how a copy may be obtained. This Annual Report shall be made available for inspection by the public at the PUC Services Office. Summary Report This Summary report for The Sault Ste. Marie Drinking Water System for the period of January 1st to December 31st 2016 has been prepared in accordance to Schedule 22 of O. Reg. 170/03. In accordance with Schedule 22 of O. Reg. 170/03, this Summary Report has been provided to the Public Utilities Commission of the City of Sault Ste. Marie. PUC Services Inc. 500 Second Line East Sault Ste. Marie, ON P6A 6P2 Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 18 of 19

19 Tables, Definition of Terms Appendix A: List of Tables/ Charts Table 1: Microbiological sampling requirements Table 1a: Microbiological Sample Results Table 2: Monthly Filter Turbidity Results Table 3: Chlorine Residuals Table 4: Schedule 23 - Inorganics Table 5 & 5a: Nitrite/ Nitrate Results - THM Results Table 6: Schedule 24 Organics WTP Table 7: Schedule 24 Organics West End Pump Stations Table 8: Schedule 24 Organics East End Pumps Stations Table 9 & 9a: Community Lead Sampling Requirements and Results Table 10: Adverse Water Quality Incidents Table 11: MOECC Risk Assessment Rating Table 12: Permit to Take Water Table 13: WTP Raw and Treated Water Flows 2016 Table 14: Goulais Treated Water Flows 2016 Table 15: Lorna Treated Water Flows 2016 Table 16: Steelton & Shannon Treated Water Flows 2016 Chart 1: 5 year Flow Comparison Chart 2: Sault Ste. Marie WTP Flows 2016 Chart 3: Goulais Pump Station Flows 2016 Chart 4: Lorna Pump Station Flows 2016 Chart 5: Steelton & Shannon Pump Station Flows 2016 Appendix B: Definition of Terms Acronym Definition AWQI Adverse water quality incident DM Dual Media DWS Drinking water system EC E. Coli GO Goulais Pump Station GUDI Groundwater under direct influence of surface water HPC Heterotrophic plate count LO Lorna Pump Station MAC Maximum Acceptable Concentration m 3 m 3 /d mg/l Cubic metres Cubic metres per day Milligram per litre (part per million) ML Megalitre (1000 m3) NTU Nephelometric turbidity unit ODWS Ontario Drinking Water Standards O. Reg. 170/03 Ontario Regulation 170/03 PTTW Permit to take water SCADA Supervisory control and data acquisition SH Shannon Pump Station ST Steelton Pump Station TC Total coliforms THM Trihalomethane µg/l Microgram per litre (part per billion) WD Water distribution WT Water treatment WTP Water treatment plant Revision Date: 12-Jan-17 Approved By: Vice President of Operations & Engineering Page 19 of 19