Helping Communities Grow

Transcription

1 Helping Communities Grow 2014 WATER QUALITY REPORT

2 SaskWater is committed to ensuring a long term, sustainable, quality water supply to our customers. TABLE OF CONTENTS 3 SaskWater s Potable Water Customers and Water Sources 5 SaskWater s Certified Operation and Maintenance Customers 6 Treatment Water Treatment Processes Surface Water Groundwater Monitoring Requirements Drinking Water Quality SaskWater Owned Water Treatment s Drinking Water Quality Certified Operation and Maintenance Water Treatment s 14 Transmission Monitoring Requirements Drinking Water Quality SaskWater Owned Water Transmission s Drinking Water Quality Certified Operation and Maintenance Water Transmission s 20 Information Key Drinking Water and Effects 22 Explanation of Terms 23 Emergency Boil Water Orders 23 Precautionary Drinking Water Advisories Cover Image: Leonard Kallichuk, Mayor of the Cupar, (right), and Jeff Harris, Senior Technologist, Regional s, SaskWater, at the water treatment plant in Cupar. 1

3 SaskWater s Potable Water Customers and Water Sources SaskWater owns and operates eight water treatment plants serving municipalities and pipeline associations. Each treatment plant has a different source of water as described in the following table. Our water treatment plant located in Draws water from this source And delivers potable water to these major users Melfort Codette Lake on the North Saskatchewan River Village of Beatty Star City Farming Co. Ltd. Kinistino Melfort Star City Village of Weldon Melfort Rural Pipeline Association Edenwold Local Reservoir Village of Edenwold Elbow Lake Diefenbaker Village of Elbow Line 19 Water Pipeline Utility (Loreburn, Strongfield) Gravelbourg Thomson Lake Gravelbourg Thomson Lake Regional Park Authority Pierceland Local Aquifer Village of Pierceland Wakaw South Saskatchewan River Village of Annaheim Bruno Cudworth Hamlet of Domremy Hillcrest Farms Ltd. Hamlet of Hoey Humboldt Village of Lake Lenore Village of Muenster Hamlet of St. Isidore-de-Bellevue Village of St. Louis Wakaw SHL Rural Pipeline Association North Central Rural Pipeline Association One Arrow First Nation White City Zehner Aquifer White City Cupar Hatfield Aquifer Cupar Jeff Harris, Senior Technologist, Regional s, conducting a test. 2 3

4 SaskWater s Potable Water Customers and Water Sources SaskWater also owns and operates nine water transmission systems. Our transmission business buys water from the, the Regina and the Buffalo Pound Water Administration Board and delivers it to customers. SaskWater s Certified Operation and Maintenance Customers In addition to operating our own potable water systems, SaskWater also provides certified operation and maintenance (COM) services to communities and user groups across Saskatchewan. This transmission system Purchases water from this supplier And delivers potable water to these customers This water treatment plant located in Is owned by Draws water from this source... And delivers potable water to these major users Buffalo Pound East Regina K+S Windsor Salt Ltd., Eastview Water Users Co-op, Village of Grand Coulee, Yara Belle Plaine Inc., Canadian Pacific Railway Buffalo Pound North Buffalo Pound West Buffalo Pound Water Administration Board Buffalo Pound Water Administration Board Arm River Farming Co. Ltd., Village of Bethune, Buffalo Plains Cattle Co., Village of Disley, Dufferin Water Association, Qu Appelle Valley Water Users Association, K+S Potash Canada Inc. Eight Mile Pipeline Association Inc., Village of Marquis, Marquis Rural Water Users Inc., Parklane Waterline Inc., Parkview Water Users Inc., Village of Tuxford, Tuxford Rural Water Users Inc. East Allan South Rural Water Utility, Allan, R.M. of Blucher (Sunset Estates), Village of Bradwell, Village of Clavet, R.M. of Corman Park (Casa Rio/Wood Meadows/Grasswood), Cory Park Mobile City, Dundurn Rural Water Utility, Eighth Street Waterline Group Inc., Village of Elstow, Elstow North Rural Water Utility, English River Enterprises, Southeast Corman Park Rural Water Corp., GNC Bioferm Inc., Canlan Ice Sports Jemini, Lost River Water Co. Ltd., Potash Corporation of Sask. Inc. Allan Division, Potash Corporation of Sask. Inc. Patience Lake Division, Prairie Plant s Inc., East School Division #41, Stadium Sports Ltd., South Yellowhead Water Corporation, University of Saskatchewan (Goodale Farms), East Floral Industrial Park Ltd., South Floral Water Corporation, SCS Water Group Inc., Teen Challenge Canada North Akzo Nobel Chemicals Ltd., Richardson Milling, Chicks R Us Poultry Ltd., R.M. of Corman Park (North Corman Industrial Park), Dalmeny, Dalmeny West Water Ltd., ERCO Worldwide, Hague, Intervalley Water Inc., Martensville, Osler, Ostara Holsteins Ltd., Sask Valley Rural Water Utility, Wanuskewin Heritage Park, Warman, Village of Hepburn West Burnco Rock Products Ltd., Chemtrade West Limited Partnership, Potash Corporation of Sask. Inc. Cory Division, Prairie Pride Chick Sales Ltd. Northeast Aberdeen, Highway 41 Water Utility, University of Saskatchewan (Kernen Farm) Northwest Thatcher Avenue BizHub Developments Ltd., Yellowhead Industrial Park Water Corp., Brandt Tractor Properties Ltd. Halbrite Village of Halbrite Local Aquifer Village of Halbrite Cochin Meota La Ronge Interlake Regional Water Board Jackfish Lake West Water Utility Corp. Lac La Ronge Regional Water Corp Local Aquifer Infiltration wells adjacent to the North Saskatchewan River Lac La Ronge Vanscoy Village of Vanscoy South Saskatchewan River Village of Vanscoy Village of Cochin, Hamlet of Days Beach, Hamlet of Trevessa Beach, Hamlet of West Chatfield, Hamlet of Summerfields Beach Village of Meota, Village of Metinota, R.M. of Meota, Hamlet of Lakeview, Hamlet of Suttons Beach Village of Air Ronge, La Ronge, Lac La Ronge Indian Band This distribution system Purchases water from this supplier And delivers potable water to these customers Caron/Mortlach Regional Public Utility Board North Central Rural Pipeline Association Regina North Industrial Subdivision SaskWater SaskWater Regina Elbow SaskWater Elbow Star City SaskWater Star City Village of Caronport, Hamlet of Caron, Village of Mortlach Various connections to the north and south of the Wakaw-Humboldt Regional Water Treatment Plant Regina North Industrial Subdivision White City SaskWater White City Village of Air Ronge Lac La Ronge Regional Water User Corporation Village of Air Ronge Village of Edenwold SaskWater Village of Edenwold Northwest 33rd Street R.M. of Corman Park (Battleford Trail), Ministry of Government Services (Yarrow Youth Farm) 4 5

5 Treatment Water Treatment Processes Water treatment removes natural and man-made contaminants from the source water so that it is safe and pleasant to drink. The treatment process from a surface water source (like a river or lake) differs from treatment for groundwater (that is, drawn from an aquifer). Surface Water Generally, surface water treatment involves either conventional treatment, which consists of screening to remove debris, coagulation-flocculation, clarification or sedimentation, filtration, and disinfection; or membrane treatment, which consists of screening to remove debris, reverse osmosis membrane filtration, and disinfection to remove physical, chemical, microbial and other contaminants from the water. Our treatment plants in Melfort, Wakaw, Gravelbourg, Edenwold and Elbow use these types of processes. Groundwater For groundwater, the treatment process generally consists of oxidation of iron, manganese and other minerals with aeration and/or other processes followed by detention, filtration and disinfection. Our treatment plants in Pierceland, White City and Cupar use groundwater sources with this kind of treatment process. Monitoring Requirements SaskWater undertakes water quality testing as required by The Water Regulations, 2002 and by operating permits for our water treatment plants and distribution systems. SaskWater monitors water quality in order to: assess and ensure the safety of the water for our customers assess the need for any process adjustments determine quality trends and identify potential concerns We employ more than 45 provincially certified operators who monitor and maintain the quality of water from the initial source to the final point of delivery. Our highly trained, dedicated operators, technicians, technologists and professional engineers keep abreast of technological changes, water quality, and any upgrading needs of our waterworks systems to meet ever-changing water quality standards and monitoring requirements. SaskWater also monitors most of our facilities and customer facilities remotely. We have remote monitoring equipment installed in 52 locations which we either own or operate, allowing continuous facility surveillance. We monitor key water quality parameters, equipment operation and water levels, pressures and flows.. The following tables summarize the monitoring and testing requirements SaskWater must meet at its owned and COM treatment plants for bacteriological parameters, chlorine residuals, turbidity, chemical, and health and toxicity parameters. SaskWater Owned Water Treatment Codette Cupar Edenwold Elbow Gravelbourg Annual Volume in 2014 (m 3 ) Water Source BacT* & Chlorine Residuals Chlorine Residuals at the Treatment Plant Turbidity 944,130 Codette Lake 2 per week 1 per day Continuous 52,040 16,653 59,565 Hatfield Aquifer Local Reservoir Lake Diefenbaker 1 per week 1 per day 1 per day 1 per week 1 per day 1 per week 1 per day 1 per day per filter 1 per day per filter 122,136 Thomson Lake 1 per week 2 per day 2 per day General Chemical every every every Health & Toxicity year THM** 2 every in for groundwater in in in Pierceland 53,945 Local Aquifer 1 per week 1 per day 1 per day for groundwater Wakaw- Humboldt 1,201,715 South Sask. River 3 per week 1 per day Continuous year 2 every in White City 230,440 Zehner Aquifer 1 per week 1 per day 1 per day for groundwater ** BacT = Bacteriological ** THM = Trihalomethanes 6 7

6 2014 Drinking Water Quality SaskWater Owned Water Treatment s Our governing standards direct us to meet or exceed the Saskatchewan Drinking Water Quality Standards for health related potable water parameters. SaskWater Operated Water Treatment Water Source BacT* & Chlorine Residuals Chlorine Residuals at the Treatment Plant Turbidity General Chemical Health & Toxicity THM** Summary of 2014 water quality data Regulatory Aesthetic Codette Cupar SASKWATER OWNED WATER TREATMENT SYSTEMS Edenwold Elbow Gravelbourg Pierceland Wakaw- Humboldt White City Halbrite Interlake Jackfish Lake La Ronge Vanscoy ** BacT = Bacteriological ** THM = Trihalomethanes Local Aquifer 2 per month 1 per day 1 per day Local Aquifer Infiltration wells adjacent to the North Sask. River 3 per week May to Oct, 2 per month Nov to Apr 3 per week 2 per day 1 per day 1 per day 2 per day per filter Lac La Ronge 2 per week 1 per day Continuous South Sask. River 1 per week 1 per day 1 per day per filter every every every for groundwater for groundwater in in in 1. BACTERIOLOGICAL 1 : Total Coliform E. coli Background Bacteria Number of Bacteriological Tests Required Number of Bacteriological Tests Submitted CHLORINE RESIDUALS: Minimum mg/l Maximum mg/l Average mg/l Total Chlorine (Cl 2) Residuals: Minimum mg/l Maximum mg/l Average mg/l No. of Cl 2 Tests Required No. of Cl 2 Tests Performed From water entering distribution system Minimum mg/l Maximum mg/l Average mg/l Total Chlorine (Cl 2) Residuals: Minimum mg/l no standard Maximum mg/l Average mg/l No. of Free Cl 2 Tests Required No. of Free Cl 2 Tests Performed Continuous Continuous Continuous Continuous 730 Continuous Continuous Continuous 3. TURBIDITY: Minimum NTU Maximum NTU no standard Average NTU No. of Turbidity Tests Required No. of Turbidity Tests Performed From water leaving the filter Surface Water (Chemically Assisted Filtration): Minimum NTU Maximum NTU Average NTU th Percentile NTU Surface Water (Membrane Filtration): Minimum NTU Maximum NTU Average NTU th Percentile NTU From water entering the distribution system Groundwater: Minimum NTU Maximum NTU no standard Average NTU th Percentile NTU No. of Turbidity Tests Required Continuous Continuous 365 No. of Turbidity Tests Performed Continuous Continuous Continuous Continuous Continuous Continuous Continuous Continuous 8 9

7 SASKWATER OWNED WATER TREATMENT SYSTEMS Summary of 2014 water quality data (continued) SASKWATER OWNED WATER TREATMENT SYSTEMS Codette Cupar Edenwold Elbow Gravelbourg Pierceland Wakaw- Humboldt White City Regulatory Aesthetic Codette Cupar Edenwold Elbow Gravelbourg Pierceland Wakaw- Humboldt White City Regulatory Aesthetic 4. CHEMICAL HEALTH: Aluminum mg/l no standard Arsenic mg/l < Barium mg/l Boron mg/l Cadmium mg/l < < < Chromium mg/l 0.05 < < < < < < < < Copper mg/l Iron mg/l < Lead mg/l 0.01 < < < Manganese mg/l 0.05 < < Selenium mg/l < < < < Trihalomethanes (THM) mg/l Uranium mg/l < < Zinc mg/l < < GENERAL CHEMICAL: Alkalinity mg/l Bicarbonate mg/l no standard Calcium mg/l no standard Carbonate mg/l no standard <1 <1 < <1 <1 <1 Chloride mg/l Fluoride mg/l Hardness (as CaCO 3) mg/l Hydroxide mg/l no standard <1 <1 <1 <1 0 <1 <1 <1 Magnesium mg/l Nitrate (as NO 3) mg/l < <0.04 ph ph units Potassium mg/l no standard Sodium mg/l Specific Conductivity µs/cm no standard Sulphate mg/l Sum of Ions mg/l no standard TDS mg/l CONDUCTIVITY and PH: Specific Conductivity µs/cm no standard 43 ph ph units CHEMICAL PESTICIDES: Atrazine mg/l <0.001 <0.001 Bromoxynil (Buctril) mg/l < < Carbofuran mg/l 0.09 < < Chlorpyrifos mg/l 0.09 <0.002 <0.002 Dicamba (Banvel) mg/l 0.12 < < , 4-Dichlorophenoxyacetic acid 2, 4 (2, 4-D) mg/l 0.1 < < Dichlorprop (2, 4-DP) mg/l no standard < Diclofop-methyl (HoeGrass) mg/l <0.003 <0.003 Dimethoate mg/l 0.02 <0.001 <0.001 Ethalfluralin mg/l no standard <0.001 Glyphosate mg/l 0.28 <0.01 Lindane mg/l no standard < Malathion mg/l 0.19 <0.002 <0.002 MCPA mg/l <0.001 Pentachlorophenol (PCP) mg/l 0.06 <0.002 <0.002 Picloram (Tordon) mg/l 0.19 <0.001 <0.001 Propanil mg/l no standard < Triallate (Avadex BW) mg/l no standard <0.001 Trifluralin (Treflan) mg/l <0.001 < CHEMICAL ORGANICS: Benzene mg/l < < Benzo(a)pyrene mg/l < < Carbon tetrachloride mg/l <0.002 <0.002 Dichlorobenzene 1,2 mg/l 0.2 < < Dichlorobenzene 1,4 mg/l < < Dichloroethane 1,2 mg/l < < Dichloroethylene 1,1 mg/l < < Dichloromethane mg/l 0.05 < < Dichlorophenol 2,4 mg/l 0.9 <0.001 <0.001 Ethylebenzene mg/l < < Monochlorobenzene mg/l 0.08 < < Nitrilotriacetic Acid (NTA) mg/l 0.4 <0.1 Tetrachlorophenol 2,3,4,6 mg/l 0.1 <0.001 <0.001 Toluene mg/l < < Trichloroethylene mg/l 0.05 < < Trichlorophenol 2,4,6 mg/l <0.001 <0.001 Vinyl Chloride mg/l < < Total Xylenes mg/l 0.3 < CYANIDE and MERCURY: Cyanide mg/l 0.2 <0.001 <0.001 Mercury mg/l < < HALOACETIC ACIDS and RADIOLOGICAL: Haloacetic Acids 5 mg/l Gross alpha Bq/L 0.1 <0.18 Gross beta Bq/L Notes mg/l: Milligrams per litre (equivalent to parts per million µs/cm: Microsiemens per centimetre Bq/L: Becquerel per litre NTU: Nephelometric Turbidity Unit < : Below detection limits : Regional Water Supply : Water Treatment Plant 95th Percentile: Turbidity levels from each filter must not exceed this limit in at least 95% of the discrete measurements made for each calendar month; or if continuous turbidity monitoring is employed, at least 95% of the time for each calendar month.. to test (). Does not meet Water Security Agency Permit to Operate requirements. 1. Regulatory Limits Total Coliform: zero organisms detectable per 100 ml E. coli: zero organisms detectable per 100 ml Background Bacteria: less than 200 organisms per 100 ml Any organisms detected over these limits will result in one positive for that sample. 2. Chlorine residuals in the distribution system must be either 0.1 mg/l free or 0.5 mg/l total. 3. Additional testing carried out by SaskWater but not required by the permit. 4. One positive Total Coliform sample on August 11, 2014, repeat was negative. 5. Aesthetic objective is exceeded, but all regulatory requirements are met. In-house testing done at averaged 0.09 mg/l in

8 2014 Drinking Water Quality Certified Operation and Maintenance Water Treatment s Our governing standards direct us to meet or exceed the Saskatchewan Drinking Water Quality Standards for health related potable water parameters. CERTIFIED OPERATION AND MAINTENANCE WATER TREATMENT SYSTEMS Summary of 2014 water quality data (continued) CERTIFIED OPERATION AND MAINTENANCE WATER TREATMENT SYSTEMS Halbrite Interlake Jackfish Lake La Ronge Vanscoy Regulatory Aesthetic Halbrite Interlake Jackfish Lake La Ronge Vanscoy Regulatory Aesthetic 1. BACTERIOLOGICAL 1 : Total Coliform E. coli Background Bacteria Number of Bacteriological Tests Required Number of Bacteriological Tests Submitted CHLORINE RESIDUALS: Minimum mg/l Maximum mg/l Average mg/l Total Chlorine (Cl 2) Residuals: Minimum mg/l Maximum mg/l Average mg/l No. of Free Cl 2 Tests Required No. of Free Cl 2 Tests Performed From water entering distribution system Minimum mg/l Maximum mg/l Average mg/l No. of Free Cl 2 Tests Required No. of Free Cl 2 Tests Performed Continuous Continuous Continuous 365 Continuous 3. TURBIDITY: Minimum NTU Maximum NTU no standard Average NTU No. of Turbidity Tests Required No. of Turbidity Tests Performed From water leaving the filter Surface Water (Chemically Assisted Filtration): Minimum NTU Maximum NTU Average NTU th Percentile NTU Surface Water (Membrane Filtration): Minimum NTU 0.04 Maximum NTU Average NTU th Percentile NTU From water entering the distribution system Groundwater: Minimum NTU Maximum NTU no standard Average NTU th Percentile NTU No. of Turbidity Tests Required Continuous 365 No. of Turbidity Tests Performed Continuous Continuous Continuous 4. CHEMICAL HEALTH: Aluminum mg/l no standard Arsenic mg/l Barium mg/l Boron mg/l Cadmium mg/l < < < < < Chromium mg/l 0.05 < < < < < Copper mg/l Iron mg/l Lead mg/l < < Manganese mg/l < Selenium mg/l 0.01 < < < < Trihalomethanes (THM) mg/l Uranium mg/l < < < Zinc mg/l < HAA5 mg/l GENERAL CHEMICAL: Alkalinity mg/l Bicarbonate mg/l no standard Calcium mg/l no standard Carbonate mg/l no standard <1 <1 <1 <1 <1 Chloride mg/l Fluoride mg/l Hardness (as CaCO 3) mg/l Hydroxide mg/l no standard <1 <1 <1 <1 <1 Magnesium mg/l < Nitrate (as NO 3) mg/l 45 <0.04 < ph ph units Potassium mg/l no standard Sodium mg/l Specific Conductivity µs/cm no standard Sulphate mg/l Sum of Ions mg/l no standard TDS mg/l CONDUCTIVITY and ph: Specific Conductivity µs/cm no standard 137 ph ph units PRESSURE DECAY TESTING: Log Removal Value Notes mg/l: Milligrams per litre (equivalent to parts per million) µs/cm: Microsiemens per centimetre Bq/L: Becquerel per litre NTU: Nephelometric Turbidity Unit <: Below detection limits : Regional Water Supply : Water Treatment Plant 95th Percentile: Turbidity levels from each filter must not exceed this limit in at least 95% of the discrete measurements made for each calendar month; or if continuous turbidity monitoring is employed, at least 95% of the time for each calendar month. to test (). Deviation from Water Security Agency Permit to Operate requirements. 1. Regulatory Limits Total Coliform: zero organisms detectable per 100 ml E. coli: zero organisms detectable per 100 ml Background Bacteria: less than 200 organisms per 100 ml Any organisms detected over these limits will result in one positive for that sample. 2. Chlorine residuals in the distribution system must be either 0.1 mg/l free or 0.5 mg/l total. 3. Additional testing carried out by SaskWater but not required by the permit. 4. Two positive Total Coliform samples. Both were taken on August 18, 2014, and both repeat samples were negative. 5. Two positive Total Coliform samples. One taken on June 23, 2014 and one taken on August 5, Both repeat samples were negative. 6. One positive Total Coliform sample on June 9, 2014; repeat was negative. 7. One low chlorine residual submitted with bacteriological sample November 6, Bacteriological test was negative. 8. Low chlorine residual was caused by process equipment malfunction. EPO was notified and it did not result in a PDWA. 9. Sample was lost in transit. The EPO informed operator that they did not have to re-sample. 10. January 30, 2014, sample was not tested due to equipment malfunction. 11. Aesthetic objectives are exceeded, but all regulatory requirements are met

9 Transmission In addition to water treatment facilities, SaskWater also owns and provides certified operation and maintenance for potable water transmission systems. There are no treatment facilities on any of these transmission systems. Monitoring Requirements Depending on the population, each potable water transmission system must be monitored according to the Water Security Agency s (WSA) Municipal Drinking Quality Monitoring Guidelines. Permit requirements for a specific waterworks may require more sampling than outlined in WSA s guidelines. The following table summarizes the water quality monitoring and testing requirements for bacteriological, chlorine residuals, turbidity, chemical and health and toxicity parameters for each of our owned and COM facilities. SaskWater Owned Transmission Annual Volume in 2014 (m 3 ) Water Source BacT* & Chlorine Residuals in Distribution Chlorine Residuals Entering the Distribution Turbidity General Chemical & Health & Toxicity THM** SaskWater Operated Transmission Water Source BacT* & Chlorine Residuals in Distribution Chlorine Residuals Entering the Distribution Turbidity General Chemical & Health & Toxicity THM** Buffalo Pound East 76,427 Regina 1 per month 1 per day as per permit in Caron/Mortlach Regional Public Utility SaskWater 1 per week 1 per day Buffalo Pound North 182,443 Buffalo Pound 2 per month 1 per day as per permit in North Central Rural Pipeline Association SaskWater 4 per month 2 per day 2 every Buffalo Pound West 47,306 Buffalo Pound 2 per month 1 per day as per permit in Regina North Industrial Subdivision Regina 1 per week 1 per day 1 per week in East 838,987 3 per week 1 per day 3 per week in Elbow SaskWater 1 per week 1 per week in North 2,561,067 3 per week 1 per day 3 per week in Star City SaskWater 1 per month 1 per day Northeast 135,950 1 per week 1 per day 1 per week in White City SaskWater 2 per month 1 per day Northwest 33rd Street 10,980 1 per month 1 per month 1 per month Village of Air Ronge Lac La Ronge Regional Water User Corporation 2 per week 2 per week in Northwest Thatcher Ave 19,834 1 per week 1 per day 1 per week in Village of Edenwold SaskWater 1 per month 1 per month in West 75,416 2 per week 1 per day 2 per week in ** BacT = Bacteriological ** THM = Trihalomethanes ** BacT = Bacteriological ** THM = Trihalomethanes 14 15

10 2014 Drinking Water Quality SaskWater Owned Water Transmission s SASKWATER OWNED WATER TRANSMISSION SYSTEMS Summary of 2014 water quality data (continued) SASKWATER OWNED WATER TRANSMISSION SYSTEMS Buffalo Pound East Buffalo Pound North Buffalo Pound West East North Northeast Northwest 33rd Street Northwest Thatcher Ave West Buffalo Pound East Buffalo Pound North Buffalo Pound West East North Northeast Northwest 33rd Street Northwest Thatcher Ave West Regulatory Aesthetic Regulatory Aesthetic 1. BACTERIOLOGICAL 1 : Total Coliform E. coli Background Bacteria Number of Bacteriological Tests Required Number of Bacteriological Tests Submitted CHLORINE RESIDUALS: Minimum mg/l Maximum mg/l Average mg/l Total Chlorine (Cl 2) Residuals: Minimum mg/l Maximum mg/l Average mg/l No. of Free Cl 2 Tests Required No. of Free Cl 2 Tests Performed From water entering distribution system Minimum mg/l Maximum mg/l Average mg/l Total Chlorine (Cl 2) Residuals: Minimum mg/l Maximum mg/l Average mg/l No. of Free Cl 2 Tests Required 365 Continuous Continuous No. of Free Cl 2 Tests Performed Continuous Continuous Continuous Continuous Continuous Continuous 12 Continuous Continuous 3. TURBIDITY: Minimum NTU Maximum NTU no standard Average NTU No. of Turbidity Tests Required No. of Turbidity Tests Performed CHEMICAL HEALTH: Trihalomethanes (THM) mg/l Sampling for parameters below this point is not required under permit. Aluminum mg/l no standard Arsenic mg/l < Barium mg/l Boron mg/l Cadmium mg/l < < < Chromium mg/l 0.05 < < < < < < < Copper mg/l Iron mg/l Lead mg/l < Manganese mg/l < < < Selenium mg/l Uranium mg/l 0.02 < < < Zinc mg/l GENERAL CHEMICAL: Alkalinity mg/l Bicarbonate mg/l no standard Calcium mg/l no standard Carbonate mg/l no standard <1 <1 <1 <1 <1 <1 <1 <1 Chloride mg/l Fluoride mg/l Hardness (as CaCO 3) mg/l Hydroxide mg/l no standard <1 <1 <1 <1 <1 <1 <1 <1 Magnesium mg/l Nitrate (as NO 3) mg/l 45 <0.04 <0.04 < ph ph units Potassium mg/l no standard Sodium mg/l Specific Conductivity µs/cm no standard Sulphate mg/l Sum of Ions mg/l no standard TDS mg/l Notes mg/l: Milligrams per litre (equivalent to parts per million) µs/cm: Microsiemens per centimetre NTU: Nephelometric Turbidity Unit <: Below detection limits Free chlorine residuals don t apply due to using chloramination. to test (). Does not meet Water Security Agency Permit to Operate requirements. 1. Regulatory Limits Total Coliform: zero organisms detectable per 100 ml E. coli: zero organisms detectable per 100 ml Background Bacteria: less than 200 organisms per 100 ml Any organisms detected over these limits will result in one positive for that sample. 2. Chlorine residuals in the distribution system must be either 0.1 mg/l free or 0.5 mg/l total. 3. Additional testing carried out by SaskWater but not required by the permit. 4. One positive Total Coliform sample on April 7, Follow up repeat sample was negative. 5. Three low chlorine residuals submitted with bacteriological samples on May 12, 2014, November 24, 2014, December 22, 2014; all bacteriological results were negative. 6. One low chlorine residual sample on March 3, 2014; bacteriological result was negative. 7. Low water use in December resulted in low chlorine level. Chlorine meets guidelines 99.6% of the time. 8. Low water use resulted in low chlorine level. Chlorine meets guidelines 98.7% of the time. 9. Low chlorine residual was caused by process equipment malfunction. Chlorine meets guidelines 97.6% of the time

11 2014 Drinking Water Quality Certified Operation and Maintenance Water Transmission s CERTIFIED OPERATION AND MAINTENANCE WATER TRANSMISSION SYSTEMS Summary of 2014 water quality data (continued) CERTIFIED OPERATION AND MAINTENANCE WATER TRANSMISSION SYSTEMS Caron / Mortlach Regional Pipeline North Central Rural Regina North Pipeline Industrial Association Subdivision Elbow Star City White City Village of Air Ronge Village of Edenwold Regulatory Aesthetic Caron / Mortlach Regional Pipeline North Central Rural Regina North Pipeline Industrial Association Subdivision Elbow Star City White City Village of Air Ronge Village of Edenwold Regulatory Aesthetic 1. BACTERIOLOGICAL 1 : Total Coliform E. coli Background Bacteria Number of Bacteriological Tests Required Number of Bacteriological Tests Submitted CHLORINE RESIDUALS: Minimum mg/l Maximum mg/l Average mg/l Total Chlorine (Cl 2) Residuals: Minimum mg/l Maximum mg/l Average mg/l No. of Cl 2 Tests Required No. of Cl 2 Tests Performed From water entering distribution system Minimum mg/l Maximum mg/l Average mg/l No. of Free Cl 2 Tests Required Continuous No. of Free Cl 2 Tests Performed Continuous Continuous Continuous Continuous Continuous TURBIDITY: Minimum NTU Maximum NTU no standard Average NTU No. of Turbidity Tests Required No. of Turbidity Tests Performed From water entering the distribution system Groundwater: Minimum NTU Maximum NTU no standard Average NTU th Percentile NTU No. of Turbidity Tests Required 365 No. of Turbidity Tests Performed Continuous 4. CHEMICAL HEALTH: Trihalomethanes (THM) mg/l Haloacetic Acids 5 mg/l Sampling for parameters below this point is not required under permit. Aluminum mg/l no standard Arsenic mg/l Barium mg/l Boron mg/l Cadmium mg/l < Chromium mg/l 0.05 < < Copper mg/l Iron mg/l Lead mg/l 0.01 < Manganese mg/l < Selenium mg/l Uranium mg/l Zinc mg/l GENERAL CHEMICAL: Alkalinity mg/l Bicarbonate mg/l no standard Calcium mg/l no standard Carbonate mg/l no standard <1 <1 Chloride mg/l Fluoride mg/l Hardness (as CaCO 3) mg/l Hydroxide mg/l no standard <1 <1 Magnesium mg/l Nitrate (as NO 3) mg/l ph ph units Potassium mg/l no standard Sodium mg/l Specific Conductivity µs/cm no standard Sulphate mg/l Sum of Ions mg/l no standard TDS mg/l Notes mg/l: Milligrams per litre (equivalent to parts per million) µs/cm: Microsiemens per centimetre NTU: Nephelometric Turbidity Unit <: Below detection limits to test (). Deviation from Water Security Agency Permit to Operate requirements. 1. Regulatory Limits Total Coliform: zero organisms detectable per 100 ml E. coli: zero organisms detectable per 100 ml Background Bacteria: less than 200 organisms per 100 ml Any organisms detected over these limits will result in one positive for that sample. 2. Chlorine residuals in the distribution system must be either 0.1 mg/l free or 0.5 mg/l total. 3. Additional testing carried out by SaskWater but not required by the permit. 4. One positive Total Coliform sample on October 27, 2014, repeat was negative. 5. Three low chlorine residuals submitted with bacteriological sample. September 22, 2014, November 18, 2014, December 22, All bacteriological results were negative. 6. Low chlorine on May 2, 2014, due to process equipment failure. Chlorine meets guidelines 99.9% of the time. 7. Low water use in the system results in low residuals. Chlorine meets guidelines 99.8% of the time. 8. As per permit, the only requirement is to sample. Limits do not apply

12 Information Further water quality information on potable water that we purchase is available from our suppliers: Buffalo Pound Water Treatment Plant ONLINE-REPORT-PRINT.pdf Moose Jaw Regina water_system/water-sewer-system/water_quality compliance_ reports/ and select Drinking Water Quality and Compliance Report 2013 from Related Documents on the right. Key Drinking Water and Effects SaskWater s governing standards for potable water quality direct us to meet or exceed the water quality parameters set by the province of Saskatchewan. Alkalinity Alkalinity is water s acid-neutralizing capacity and is primarily a function of carbonate, bicarbonate and hydroxide content. Excessive alkalinity levels may cause scale formation. Low alkalinity waters tend to dissolve minerals and metals, while high alkalinity waters tend to precipitate minerals and metals. The Aesthetic Objective (AO) is set at a maximum of 500 mg/l. Aluminum (Al) Aluminum is the most abundant metal in the crust of the earth. Finished water may contain aluminum either naturally, or because an aluminum-based coagulant has been used in the water treatment process. No Saskatchewan or national guidelines have been established for the permissible level of aluminum in drinking water. Current operational guideline values of 0.1 to 0.2 mg/l are suggested and these are applicable only to drinking water plants using aluminum-based coagulants. Arsenic (As) Arsenic occurs naturally in water and soil. It has been classified as carcinogenic to humans. High arsenic has been linked to many health problems including lung, bladder and skin cancer, heart disease, diabetes, and others. The Maximum Acceptable Concentration (MAC) of arsenic in drinking water is 0.01 mg/l (10 μg/l). Background Bacteria Background bacteria levels are measured on a total coliform or fecal coliform membrane filtration plate. This is used to determine the variety of bacteria that are commonly found in water. Background bacteria levels must be less than 200 colonies/100 ml or no overgrowth. Barium (Ba) Ingestion of barium may result in serious effects to the heart, blood vessels, and nerves. In humans, a single dose of 125 mg/l of soluble barium can elicit an acute toxic response, but at very low levels the toxicological effects of barium are still uncertain. The MAC of barium in drinking water is 1.0 mg/l. Calcium (Ca) Calcium is an abundant natural element, entering the freshwater system through the weathering of rocks, and from the soil through seepage, leaching, and runoff. High levels of calcium salts can precipitate when heated to form scale in boilers, pipes and cooking utensils. Calcium contributes to the total hardness of water. There is no AO or MAC set for calcium. Chloride (Cl) Chloride is widely distributed in nature and is generally found in sodium and potassium salts. At concentrations above the aesthetic objective, chloride imparts undesirable taste to water and may cause corrosion in distribution systems. Concentrations of chloride in excess of 250 mg/l may impart a salty taste to water. Therefore, the AO is set at a maximum of 250 mg/l. Escherichia coli (E. coli) E. coli is a type of fecal coliform bacteria commonly found in the intestines of animals and humans. The presence of E. coli in water is a strong indication of recent sewage or animal waste contamination. Most strains of E. coli do not cause illness in healthy humans and are beneficial to the synthesis of vitamins. Some strains, however, cause cramps and diarrhea in humans. One particular strain named O157:H7 produces a powerful toxin that can cause severe illness. The standard for E. coli is no organisms detectable per 100 ml of water sample. A typical water treatment process with appropriate disinfection system would inactivate E. coli. Hardness Water hardness is mainly caused by the presence of calcium and magnesium, and is expressed as the equivalent quantity of calcium carbonate. Hardness consumes soap, forms scum, curds and scale, and is harmful to many industrial processes. Water with more than 200 mg/l (11.7 grains/gallon) of hardness is generally considered hard, though the AO is 800 mg/l for municipal drinking water purposes. Because water softening may introduce undesirably high quantities of sodium into drinking water, it is recommended that a separate un-softened supply be used for drinking and cooking. Iron (Fe) At levels above 0.3 mg/l, iron stains laundry and plumbing fixtures, imparts taste and interferes with iron exchange units. The precipitation of excessive iron causes a reddish brown colour in the water. It may also promote the growth of iron bacteria, leaving slimy coating in the piping. The AO is 0.3 mg/l. Magnesium (Mg) Magnesium is present in all natural waters and high levels in groundwater are probably the result of contact with magnesiumcontaining rock formations. Magnesium is a major contributor to water hardness and may also contribute undesirable taste to drinking water. The AO is set at a maximum of 200 mg/l. Manganese (Mn) At levels exceeding 0.15 mg/l, manganese stains laundry and plumbing fixtures and is undesirable in many industrial processes even in low concentrations. Also, it may lead to the accumulation of bacterial growth in pipelines. Elevated concentrations of manganese will form coatings on piping that may fall off as black flakes. The AO is set at a maximum of 0.05 mg/l. Nitrate (NO 3 ) The MAC of nitrate in drinking water is 45 mg/l as NO3. In excessive amounts, it interferes with the oxygen-carrying capacity of the blood and contributes to an illness known as methemoglobinemia in infants, or blue baby syndrome. Sources of nitrate in water include decaying plant or animal material, agricultural fertilizers, manure, domestic sewage or geological formations containing soluble nitrogen compounds. Since they are very soluble and do not bind to soils, nitrates have a high potential to migrate to groundwater. Pesticides Pesticides in drinking water may occur as a result of the use of these substances by humans. These substances may represent a long-term health risk if the MAC or Interim Maximum Acceptable Concentration (IMAC) is exceeded. Mandatory sampling requirements depend on the population served by the waterworks. For details, please refer to Saskatchewan s Drinking Water Quality Standards and Objectives. ph Natural waters usually have ph values in the range of 4 to 9 and most are slightly basic (i.e. greater than 7) because of the presence of bicarbonates and carbonates. Corrosion effects may become significant at a ph below 6.5 and scaling may become a problem at a ph above 8.5. For this reason the AO is a range from 6.5 to 9.0. Sodium (Na) High sodium concentration is undesirable for people on salt-free diets; causes foaming in boilers; has a laxative effect when combined with sulphate; and is detrimental to irrigation. The AO is 300 mg/l, but people with high blood pressure, hypertension or heart conditions should not exceed a level of 20 mg/l in drinking water or as directed by a physician. Sulphate (SO 4 ) Sulphate occurs naturally in water and may be present in natural waters in concentrations ranging from a few to several thousand mg/l. Concentrations in excess of 500 mg/l, especially if the magnesium content is also high, may have a laxative effect or cause gastrointestinal irritation, and may also have a noticeable taste at this concentration. The AO is set at a maximum of 500 mg/l. Sum of Ions Sum of ions indicates the concentration of ions in the water (i.e. dissolved solids). The AO for total dissolved solids is a maximum of 1,500 mg/l. See Total Dissolved Solids. Total Coliforms The presence of coliform organisms is an indication of pollution. The MAC for total coliforms is no organisms detectable per 100 ml of water sample. If any coliform organisms are detected, the site should be resampled, and if the presence of coliforms is confirmed, the appropriate corrective action should be taken. A typical water treatment process with appropriate disinfection system would inactivate coliforms. Total Dissolved Solids (TDS) TDS is a measure of the sum of individual dissolved minerals in water. Highly mineralized water is detrimental to agriculture (irrigation) and industry and may have negative health effects, although research is inconclusive and contradictory on this point. Waters with high dissolved solids are less palatable and also may leave a white film on dishes, etc. A water softener will not reduce TDS. The AO is 1,500 mg/l. Trihalomethanes (THM) Trihalomethanes are by-products formed when chlorine reacts with organic matter found in water. THMs have been linked to asthma, cancer of the bladder and colon, skin disorders and other health problems. The four THM compounds are: chloroform, dibromochloromethane, bromodichloromethane (BDCM) and bromoform. The long-term objective for trihalomethanes is 0.1 mg/l (100 μg/l) based on an annual average of seasonal samples. Turbidity Turbidity is a measure of the cloudiness of the water. High levels of turbidity can mask the presence of bacteria in the water and decrease the effectiveness of treatment processes such as filtration and chlorination. Higher turbidity levels are also often associated with higher levels of disease-causing microorganisms such as viruses, parasites and some bacteria. These organisms can cause symptoms such as nausea, cramps, diarrhea, and headaches. Typically, for surface water with a chemically assisted filtration plant, the turbidity level must be less than 0.30 NTU 95% of the time, for membrane filtration turbidity must be less than 0.1 NTU 95% of the time and for a groundwater filtration plant the turbidity level must be less than 1.0 NTU 95% of the time. For details, please refer to Water Security Agency s Saskatchewan s Drinking Water Quality Standards and Objectives

13 Explanation of Terms Potable Water Treated water that is suitable for human consumption in accordance with applicable regulations Non-Potable Water Water that is not suitable for human consumption in accordance with applicable regulations Precautionary Drinking Water Advisory (PDWA) An advisory issued under the authority of Subsection 32(1) of The Environmental Management and Protection Act, 2002 by Water Security Agency Field Offices (WSAFO) when the WSAFO and Health Region determine that drinking water quality concerns exist but immediate public health threats have not been identified. As an example, it is standard protocol to issue a PDWA when a water main is depressurized to undertake repairs. Emergency Boil Water Orders There were no emergency boil water orders (EBWO) issued on any SaskWater owned or operated facilities in Precautionary Drinking Water Advisories A Precautionary Drinking Water Advisory (PDWA) is issued when drinking water quality concerns exist but immediate public health threats have not been identified. They are commonly issued as a result of power outages or maintenance that may result in depressurization of the distribution system. There were six (6) PDWAs issued on SaskWater owned potable water systems in 2014: Potable Water Supply East had a PDWA on January 29 th due to a water main repair that resulted in a system depressurization. Buffalo Pound Potable Water Supply North and West had a PDWA on February 11 th due to a planned depressurization of the distribution system. Potable Water Supply West had a PDWA on March 13 th due to a water main break in the which caused an interruption in the supply resulting in a system depressurization. Buffalo Pound Potable Water Supply East had PDWAs on March 28 th due to a prolonged system depressurization caused by a water main break and May 7 th due to prolonged system depressurization caused by scheduled maintenance by the Regina. The Wakaw-Humboldt Regional Water Supply had a PDWA on December 30 th due to a depressurization caused by a power outage. Where SaskWater provides operation and maintenance services to community or rural pipeline association-owned systems, there were thirteen (13) PDWAs issued in 2014: The Interlake Regional Water Board had three PDWAs: one on April 8 th due to a depressurization caused by water treatment plant maintenance, on July 30 th due to a depressurization in the distribution system caused by a line break, and one on August 15 th also due to a depressurization in the distribution system caused by a distribution pump failure. The Village of Halbrite had three PDWAs: one each on April 23 rd and August 26 th due to an extended distribution system depressurization caused by planned system maintenance and a power outage respectively, and one on December 10 th due to an extended distribution system depressurization due to a planned power outage. The Village of Air Ronge had two PDWAs: one on May 10 th due to a water main break and one on October 7 th due to the need to conduct a water line repair that resulted in a system depressurization. The Star City had a PDWA on July 17 th due to a depressurization of the distribution system necessary for repairs. The Village of Edenwold had a PDWA on August 9 th due to a system depressurization caused by a power outage. The Lac La Ronge Regional Water Corp, Village of Air Ronge and La Ronge had a PDWA issued on October 21 st due to a distribution system depressurization caused by a power outage. The Jackfish Lake West Water Utility had a PDWA issued on November 3 rd due to the depressurization caused by a power outage. The North Central Rural Pipeline Association had a PDWA on December 30 th due to interruption of the treated water supply caused by a power outage. There were some instances of SaskWater potable customers having PDWAs issued on their own distribution systems in Other than the instances noted above, all these advisories were due to issues with the customers facilities and not due to the water supplied by SaskWater. There were some instances of SaskWater non-potable water customers having PDWAs issued on customer-owned treatment and distribution systems in In these instances, customers are aware that the water SaskWater supplies is non-potable, and if they wish to use non-potable water for domestic purposes, the customers are responsible for providing their own water treatment

14 There is an ongoing PDWA issued by the Water Security Agency in 2008 on SaskWater s Non-Potable Water Supply East and West. This is a situation where the Water Security Agency has decided that this system falls under The Environmental Management and Protection Act, 2002 and The Water Regulations, This is a non-potable water supply system developed to supply industrial customers; however, household users are also supplied and the water is unsuitable for drinking unless treated. Most residential users on the east system have switched to alternative potable water supply systems and there is a planned compliance deadline of May 31, 2015 for the remaining users. On the west system, alternative potable water sources are still being developed and water users have until December 31, 2016, to find alternate sources. 24 Kurt Rasmussen, Specialist Engineer, Water and Wastewater Engineering, at the Cupar water treatment plant.