Your Partner in Water · Village of St. Louis RM of St. Louis Town of Wakaw SHL Rural Pipeline Association ... Farms Ltd., RM of Corman Park (North Corman Industrial Park),

2016 WATER QUALITY REPORT

Your Partner in Water

SaskWater is committed to ensuring a long term, sustainable, quality water supply to our customers.

2 SaskWater’s Potable Water Customers

and Water Sources

4 SaskWater’s Certified Operation

and Maintenance Customers

5 Treatment

Water Treatment Processes

Surface Water

Groundwater

Monitoring Requirements

8 2016 Drinking Water Quality –

SaskWater Owned Water Treatment Systems


Certified Operation and Maintenance

Water Treatment Systems

14 Transmission



SaskWater Owned Water Transmission Systems


Certified Operation and Maintenance

Water Transmission Systems

20 Information

Key Drinking Water Parameters and Effects

Explanation of Terms

Emergency Boil Water Orders

Precautionary Drinking Water Advisories

TABLE OF CONTENTS

2

SaskWater’s Potable Water Customers and Water SourcesSaskWater owns and operates nine water treatment plants serving municipalities and pipeline associations. Each treatment plant has a different source of water as described in the following table.

OWNED WATER TREATMENT SYSTEMS

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.

Town of Kinistino

City of Melfort

Town of 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 Town of Gravelbourg

Thomson Lake Regional Park Authority

Pierceland Local Aquifer Village of Pierceland

Wakaw South Saskatchewan River Village of Annaheim

Town of Bruno

Town of Cudworth

Hamlet of Domremy

Hillcrest Farms Ltd.

Hamlet of Hoey

City of Humboldt

Village of Lake Lenore

Village of Muenster

Hamlet of St. Isidore-de-Bellevue

Village of St. Louis

RM of St. Louis

Town of Wakaw

SHL Rural Pipeline Association

North Central Rural Pipeline Association

One Arrow First Nation

White City Zehner Aquifer Town of White City

Cupar Hatfield Aquifer Town of Cupar

Melville Hatfield Aquifer and

Crescent Creek Reservoir

City of Melville (Yorkville Public Utility Board)

3

SaskWater’s Potable Water Customers and Water SourcesSaskWater also owns and operates eight water transmission systems. Our transmission business buys water from the City of Saskatoon, the City of Regina and the Buffalo Pound Water Administration Board and delivers it to customers.

OWNED WATER TRANSMISSION SYSTEMS

This transmission system… Purchases water from this supplier… And delivers potable water to these customers…

Buffalo Pound East City of Regina K+S Windsor Salt Ltd., Eastview Water Users Co-op, Village of Grand Coulee, Yara Belle Plaine Inc.,

Buffalo Pound North Buffalo Pound Water Administration Board

Arm River Farming Co. Ltd., Village of Bethune, Buffalo Plains Cattle Co., Country Springs Water Users, Village of Disley, Dufferin Water Association, Peaceful Springs Water Users, Qu’Appelle Valley Water Users Association, K+S Potash Canada Inc.

Buffalo Pound West Buffalo Pound Water Administration Board

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.

Saskatoon East City of Saskatoon Aberdeen Southwest Water Utility Board, Allan South Rural Water Utility, Town of Allan, Applewood Estates Utility Co-op, Bar K Ranch House Ltd., RM of Blucher (Sunset Estates), Village of Bradwell, Canlan Ice Sports (Jemini), Village of Clavet, Closed Creek Resources Inc., RM of Corman Park (Casa Rio/Wood Meadows/Grasswood), Cory Park Mobile City, Dundurn Rural Water Utility, Eighth Street Waterline Group Inc., Elstow North Rural Water Utility, English River Enterprises, Southeast Corman Park Rural Water Corp., GNC Bioferm Inc., Highway 394, Lost River Water Co. Ltd., Manhattan West, Meadowland Waterworks, Potash Corporation of Sask. Inc. – Allan Division, Potash Corporation of Sask. Inc. – Patience Lake Division, Prairie Plant Systems Inc., Saskatoon East School Division #41, Schro Arenas 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

Saskatoon North City of Saskatoon Akzo Nobel Chemicals Ltd., Richardson Milling, Murron Poultry Farms Ltd., RM of Corman Park (North Corman Industrial Park), Town of Dalmeny, Dalmeny West Water System Ltd., ERCO Worldwide, Town of Hague, Hidden Valley Dairy Farm, Intervalley Water Inc., City of Martensville, Town of Osler, Sask Valley Rural Water Utility, Wanuskewin Heritage Park, City of Warman, Village of Hepburn

Saskatoon West City of Saskatoon Burnco Rock Products Ltd., Chemtrade West Limited Partnership, O.P.Q. Holdings (Cory Park Esso),Potash Corporation of Sask. Inc. – Cory Division, Prairie Pride Chick Sales Ltd.

Saskatoon Northeast City of Saskatoon Town of Aberdeen, Highway 41 Water Utility, University of Saskatchewan (Kernen Farm)

Saskatoon Northwest Thatcher Avenue & 33rd St.

City of Saskatoon BizHub Developments Ltd, Yellowhead Industrial Park Water Corp., Brandt Tractor Properties Ltd., RM of Corman Park (Battleford Trail), Ministry of Central Services

4

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.

COM WATER TREATMENT SYSTEMS

This water treatment plant located in… Is owned by…

Draws water from this source...

And delivers potable water to these major users…

Cochin Interlake Regional Water Board

Local Aquifer Village of Cochin, Hamlet of Days Beach, Hamlet of Trevessa Beach, Hamlet of West Chatfield, Hamlet of Summerfields Beach

Meota Jackfish Lake West Water Utility Corp.

Infiltration wells adjacent to the North Saskatchewan River

Village of Meota, Village of Metinota, RM of Meota, Hamlet of Lakeview, Hamlet of Suttons Beach

La Ronge Lac La Ronge Regional Water Corp.

Lac La Ronge Village of Air Ronge, Town of La Ronge, Lac La Ronge Indian Band

Vanscoy Village of Vanscoy South Saskatchewan River Village of Vanscoy

COM WATER TRANSMISSION SYSTEMS

This distribution system… Purchases water from this supplier… And delivers potable water to these customers…

Caron/Mortlach Regional Public Utility Board

SaskWater Village of Caronport, Hamlet of Caron, Village of Mortlach

North Central Rural Pipeline Association

SaskWater Various connections to the north and south of the Wakaw-Humboldt Regional Water Treatment Plant

Village of Elbow SaskWater Village of Elbow

Town of Star City SaskWater Town of Star City

Town of White City SaskWater Town of White City

Village of Air Ronge Lac La Ronge Regional Water Corp. Village of Air Ronge

Village of Edenwold SaskWater Village of Edenwold

5

Treatment

Water Treatment Processes

Water treatment removes natural and man-made contaminants from the source water so that it is safe and aesthetically pleasing. The treatment process from a surface water source (like a river or lake) differs from treatment for groundwater (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, Melville 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.

In addition to treating surface water, our treatment plant in Melville also treats ground water. Following the typical oxidation and filtration process, the groundwater is desalinated using a process known as electrodialysis reversal and blended with the treated surface water.


SaskWater undertakes water quality testing as required by The Waterworks and Sewage Works Regulations, and by operating permits for our water treatment plants and distribution systems.

SaskWater monitors water quality 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 60 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 53 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.

6

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.

OWNED WATER TREATMENT SYSTEMS

SaskWaterOwned WaterTreatmentSystem

Annual Volume in 2016 (m3)

Water SourceBacteriological

& Chlorine Residuals

Chlorine Residuals

at the Treatment

Plant

TurbidityGeneral

ChemicalHealth & Toxicity

Trihalomethanes(THM)

Codette RWSS

951,248 Codette Lake 2 per week 1 per day Continuous1 every

3 months1 every

year2 every 3 months

in Jan, Apr, July, Oct

Cupar WTP

36,768 Hatfield Aquifer

1 per week 1 per day 1 per day1 every 2 years

1 every 2 years

Not required for groundwater

Edenwold WTP

16,821 Local Reservoir

1 per week 1 per day1 per day per filter

1 every 3 months

every 2 years

1 every 2 years

1 every 3 months in Jan, Apr, July, Oct

Elbow WTP

65,620 Lake Diefenbaker

1 per week Continuous Continuous1 every

3 months every 2 years

1 every 2 years


Gravelbourg WTP

145,691 Thomson Lake 1 per week 2 per day Continuous1 every


1 every 2 years


MelvilleWTP

296,017

Hatfield Aquifer & Crescent

Creek Reservoir


3 months1 every



Pierceland WTP

69,253 Local Aquifer 1 per week 1 per day 1 per day1 every 2 years

1 every 2 years


Wakaw-Humboldt RWSS

1,124,561 South Sask. River

3 per week 1 per day Continuous1 every

3 months1 every



White City WTP

291,816 Zehner Aquifer

1 per week 1 per day 2 per day1 every 2 years

1 every 2 years


7

SaskWaterOperated WaterTreatmentSystem

Water SourceBacteriological

& Chlorine Residuals

Chlorine Residuals

at the Treatment

Plant

TurbidityGeneral

ChemicalHealth & Toxicity


InterlakeWTP

Local Aquifer

2 per month 1 per day 1 per day 1 every 2 years1 every 2 years


JackfishLakeWTP

Infiltration wells adjacent to the North Sask. River

3 per week 2 per day2 per day per filter

1 every 3 months

every 2 years

1 every 2 years


La RongeWTP

Lac La Ronge 2 per week Continuous Continuous1 every

3 months 1 every

year1 every 3 months in

Jan, Apr, July, Oct

VanscoyWTP

South Sask. River



1 every 2 years


COM WATER TREATMENT SYSTEMS

8

2016 Drinking Water Quality – SaskWater Owned Water Treatment Systems Our governing standards direct us to meet or exceed the Saskatchewan Drinking Water Quality Standards for health-related potable water parameters.

Parameters Units

Saskatchewan Standards

& ObjectivesCodette

RWSSCupar WTP

Edenwold WTP

Elbow WTP

Gravelbourg WTP

Melville WTP

4Pierceland

WTP

Wakaw-Humboldt

RWSSWhite City

WTP

Regulatory Aesthetic

1. BACTERIOLOGICAL1:

Total Coliform 0 0 0 0 0 0 0 0 0 0

E. Coli 0 0 0 0 0 0 0 0 0 0Background Bacteria 0 0 0 0 0 0 0 0 0No. of Regular Bacteriological Tests Required 104 52 52 52 52 26 52 156 52

No. of Regular Bacteriological Tests Submitted 1005 52 52 526 543 293 52 156 52

2. CHLORINE RESIDUALS:

From samples submitted for bacteriological analysisFree Chlorine (Cl2) Residuals:

Minimum mg/L 0.12 0.17 0.80 0.69 0.64 0.45 1.29 0.62 0.097 0.76 Maximum mg/L 3.76 1.19 1.54 1.43 3.00 2.84 1.63 1.96 1.41 Average mg/L 1.72 0.96 0.96 1.01 1.19 2.02 1.18 1.04 0.97Total Chlorine (Cl2) Residuals:

Minimum mg/L 0.52 0.93 0.91 1.03 0.81 0.88 1.66 0.81 0.287 0.97 Maximum mg/L 4.87 1.34 2.38 1.58 3.50 3.26 1.87 2.27 1.81 Average mg/L 2.05 1.09 1.58 1.21 1.28 2.35 1.47 1.27 1.30No. of Cl2 Tests Required 104 52 52 52 52 26 52 156 52No. of Cl2 Tests Performed 1005 52 52 526 543 293 52 156 52From water entering distribution systemFree Chlorine (Cl2) Residuals:

Minimum mg/L 0.10 0.37 0.20 0.45 0.32 0.20 0.54 Minimum mg/L 0.25 0.86

Minimum mg/L 1.20 1.27Minimum mg/L 1.28 1.38

Maximum mg/L 4.14 1.81 1.92 2.00 5.20 3.41 1.99 2.62 1.51 Average mg/L 2.13 1.01 0.92 0.97 1.15 2.12 1.11 1.58 0.95Total Chlorine (Cl2) Residuals:

Minimum mg/L no standard 1.52 0.67 1.04 Maximum mg/L 5.02 5.30 2.92 Average mg/L 2.43 1.22 1.80No. of Cl2 Tests Required 366 366 365 Continuous 732 Continuous 366 366 366No. of Cl2 Tests Performed Continuous Continuous Continuous Continuous 774 Continuous Continuous8 Continuous Continuous

3. TURBIDITY:

From samples submitted for bacteriological analysis

Minimum NTU 0.07 0.07 0.12 0.10 0.07 0.10 0.10 0.04 0.08 Maximum NTU no standard 0.25 0.21 0.98 0.17 2.68 0.67 0.71 0.23 1.44 Average NTU 0.12 0.09 0.32 0.14 0.16 0.23 0.23 0.10 0.23No. of Turbidity Tests Required 0 52 52 52 52 26 52 156 52No. of Turbidity Tests Performed 1003 52 52 526 543 293 52 156 52From water leaving the filterSurface Water:

Minimum NTU 0.019 0.025 0.079 0.004 0.07 0.031 Maximum NTU 0.3 0.090 Maximum NTU 1.0 0.330 0.682 0.779 0.29 0.245 Average NTU 0.064 0.137 0.143 0.013 0.17 0.055 95th Percentile NTU 0.1 0.018 95th Percentile NTU 0.2 0.078 95th Percentile NTU 0.3 0.154 0.250 0.190 0.27No. of Turbidity Tests Required Continuous 732 Continuous Continuous Continuous Continuous

No. of Turbidity Tests Performed Continuous 1470 Continuous Continuous Continuous Continuous

From water entering the distribution system

Minimum NTU 0.01 0.030 0.04 0.02 0.020 0.03 Maximum NTU no standard 1.00 0.980 2.78 0.59 1.993 2.00 Average NTU 0.03 0.250 0.13 0.23 0.134 0.17 95th Percentile NTU 1.0 0.05 0.39 0.250 0.86No. of Turbidity Tests Required 366 366 732 Continuous 366 732No. of Turbidity Tests Performed Continuous 734 736 Continuous Continuous8 Continuous

Summary of 2016 water quality data SASKWATER OWNED WATER TREATMENT SYSTEMS

9

Parameters Units


& ObjectivesCodette

RWSSCupar WTP

Edenwold WTP

Elbow WTP

Gravelbourg WTP

Melville WTP

4Pierceland

WTP

Wakaw-Humboldt

RWSSWhite City

WTP


4. CHEMICAL HEALTH:Aluminum mg/L no standard 0.016 <0.007 0.0117 0.30 0.0047 0.0067 0.0012 0.043

Antimony mg/L 0.006 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002Arsenic mg/L 0.010 0.0002 <0.0001 0.0017 0.00095 0.00017 0.0013 <0.0001 0.0002Barium mg/L 1.0 0.046 0.0012 0.135 0.08 0.0015 0.012 0.21 0.076Boron mg/L 5.0 0.02 0.3 0.1 0.02 0.35 0.34 0.04 0.04Cadmium mg/L 0.005 0.00003 <0.00015 0.00015 0.00001 <0.00056 <0.00001 <0.00001 0.00002Chromium mg/L 0.050 <0.0005 <0.00019 0.00019 <0.0005 <0.00019 <0.0005 <0.0005 0.0008Copper mg/L 1.0 0.0056 0.0348 0.0838 0.0007 0.0060 0.0061 0.04 0.017Iron mg/L 0.3 0.0022 <0.1 0.1 0.0012 <0.1 0.012 0.0036 0.0050Lead mg/L 0.010 <0.0001 0.0002 0.0041 <0.0001 0.0001 <0.0001 0.0009 0.0016Manganese mg/L 0.05 0.0006 <0.01 0.01 0.0005 <0.01 0.011 0.0054 <0.0005Selenium mg/L 0.010 0.0002 <0.00113 0.00113 0.0005 <0.00113 <0.0001 <0.0001 0.0006Silver mg/L no standard <0.00005 <0.00005 <0.00005 <0.00005 <0.00005Uranium mg/L 0.020 0.0001 <0.00011 0.0008 0.0013 <0.00011 0.0011 <0.0001 0.0008Zinc mg/L 5 0.002 0.0055 0.0328 0.0005 0.0068 0.0020 0.007 0.0013

5. GENERAL CHEMICAL: Alkalinity mg/L 500 141 76.7 178 165 25.7 257 404 146 291Bicarbonate mg/L no standard 172 94 218 202 22 314 493 178 355Calcium mg/L no standard 57 11 111 45 <1 57 85 46 85Carbonate mg/L no standard <1 0 0 <1 0 <1 <1 <1 0Chloride mg/L 250 12 13.8 79.9 15 6.6 29 5 14 9.8Fluoride (off-site) mg/L 1.5 0.68 <0.05 0.07 0.22 <0.05 0.08 0.39 0.54 0.36Hardness (as CaCO3) mg/L 800 227 44 648 188 7 294 385 199 373Hydroxide mg/L no standard <1 0 0 <1 3 <1 <1 <1 0Magnesium mg/L 200 21 4 90 19 <1 37 42 20 39Nitrate (as NO3) mg/L 45.0 0.56 <0.2 0.2 0.32 0.9 0.53 0.33 1.11 <0.2pH pH units 6.5–9.0 7.64 7.7 7.4 8.21 8.35 7.84 8.12 7.69 7.5Potassium mg/L no standard 3.3 <1 24 3.1 <1 5.4 5 3.4 4Sodium mg/L 300 24 46 65 30 17 146 11 31 38Specific Conductivity uS/cm no standard 566 310 1424 507 83 1190 732 542 803Sulphate mg/L 500 133 55.2 5019 81 7.7 320 6 110 146Sum of Ions mg/L no standard 422 394 909 647 403TDS mg/L 1500 348 225 1088 301 60 796 395 319 677

6. CHEMICAL PESTICIDES:Atrazine mg/L 0.005 <0.0002 <0.0002 <0.0002Bromoxynil (Buctril) mg/L 0.005 <0.0005 <0.0005 <0.0005Carbofuran mg/L 0.09 <0.0002 <0.0002 <0.0002Chlorpyrifos mg/L 0.09 <0.0002 <0.0002 <0.0002Dicamba (Banvel) mg/L 0.12 <0.0005 <0.0005 <0.00052, 4-Dichlorophenoxyacetic acid (2, 4-D) mg/L 0.1 <0.0005 <0.0005 <0.0005

Diclofop-methyl (HoeGrass) mg/L 0.009 <0.003 <0.003 <0.003Dimethoate (Cygon) mg/L 0.02 <0.002 <0.002 <0.002Malathion mg/L 0.19 <0.0002 <0.0002 <0.00022-Methyl-4-Chlorophenoxyacetic Acid (MCPA) mg/L 0.10 <0.001 <0.001

Pentachlorophenol (PCP) mg/L 0.06 <0.002 <0.002 <0.002Picloram (Tordon) mg/L 0.19 <0.001 <0.001 <0.001Trifluralin (Treflan) mg/L 0.045 <0.0002 <0.0002 <0.0002

7. TRIHALOMETHANES and HALOACETIC ACIDS (HAA5)

Trihalomethanes (THM) mg/L 0.100 0.11310 0.061 0.064 0.036 0.047 0.046

Haloacetic Acids 5 mg/L 0.080 0.044 0.039 0.006 0.024 0.038

Summary of 2016 water quality data (continued) SASKWATER OWNED WATER TREATMENT SYSTEMS

10

Not required to test (as per permit).Due to be sampled again in 2017. For 2015 results please see SaskWater's 2015 Water Quality Report. 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. SaskWater took over operation of the Melville Water Treatment Plant on July 1, 2016. The results reported are from July 1, 2016 to December 31, 2016.

5. Samples were missed the weeks of May 30 & July 25. May 30 was because of a postal service error. July 25 was not sampled because of a Precautionary Drinking Water Advisory on the system. Advisory was due to changing the source water supply due to the oil spill on the North Saskatchewan River.

6. Bacteriological sample not taken the week of May 30, 2016. EPO was notified and an extra sample was taken the following week.

7. One low chlorine residual submitted with bacteriological sample September 12, 2016. Bacteriological result was negative.

8. Continuous monitoring equipment failure on October 13. Readings from that point until the end of the year are 1/day, as required per permit. Equipment was replaced in early 2017 and continuous readings resumed.

9. Aesthetic objective were exceeded, but all regulatory requirements are met.

10. High third quarter results caused by high chlorine dosage needed for alternate source water following the oil spill in the North Saskatchewan River.

ct/100 mL : Counts per 100 mililitres

MPN/100 mL: Most Probable Number per 100 millilitres NT: Not Tested SRC: Saskatchewan Research Council mg/L: Miligrams per litre (equivalent to parts per million) uS/cm: Microsiemens per centimetre Bq/L: Becquerel per litre

NTU: Nephelometric Turbidity Unit ACU: Apparent Colour Unit <: Below detection limits OGV: Operational Guideline Value RWSS: Regional Water Supply System WTP: 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.

Notes

Parameters Units


& ObjectivesCodette

RWSSCupar WTP

Edenwold WTP

Elbow WTP

Gravelbourg WTP

Melville WTP

4Pierceland

WTP

Wakaw-Humboldt

RWSSWhite City

WTP


8. MICROCYSTIN-LR:Microcystin-LR mg/L 0.0015 <0.0001 <0.0001

9 CYANIDE and MERCURY:Cyanide mg/L 0.200 <0.001 0.002 0.004Mercury mg/L 0.001 0.000007 <0.000001 0.000002

10. CHEMICAL ORGANICS:Benzene mg/L 0.005 <0.0002 <0.0002 <0.0004Benzo(a)pyrene mg/L 0.00001 <0.00001 <0.00001 <0.00001Carbon tetrachloride mg/L 0.005 <0.002 <0.002 <0.0005Dichlorobenzene 1,2 mg/L 0.200 <0.0005 <0.0005 <0.0005Dichlorobenzene 1,4 mg/L 0.005 <0.0005 <0.0005 <0.0005Dichloroethane 1,2 mg/L 0.005 <0.0005 <0.0005 <0.0005Dichloroethylene 1,1 mg/L 0.014 <0.0005 <0.0005 <0.0005Dichloromethane mg/L 0.050 <0.0005 <0.0005 <0.002Dichlorophenol 2,4 mg/L 0.900 <0.002 <0.002 <0.002Ethylbenzene mg/L 0.0024 <0.0002 <0.0002 <0.0004Monochlorobenzene mg/L 0.080 <0.0005 <0.0005 <0.0005Nitrilotriacetic Acid (NTA) mg/L 0.4 <0.1 <0.1Tetrachlorophenol 2,3,4,6 mg/L 0.100 <0.002 <0.002 <0.002Toluene mg/L 0.024 <0.0002 <0.0002 <0.0004Trichloroethylene (TCE) mg/L 0.050 <0.0005 <0.0005 <0.0005Trichlorophenol 2,4,6 mg/L 0.005 <0.002 <0.002 <0.002Vinyl Chloride mg/L 0.002 <0.0005 <0.0005 <0.0005Total Xylenes mg/L 0.3 <0.0002 <0.0002 <0.0008

11. RADIOLOGICAL:

Gross alpha Bq/L 0.5 <0.15

Gross beta Bq/L 1.0 0.19+/- 0.04

Summary of 2016 water quality data (continued) SASKWATER OWNED WATER TREATMENT SYSTEMS

11

CERTIFIED OPERATION AND MAINTENANCE WATER TREATMENT SYSTEMS

2016 Drinking Water Quality – Certified Operation and Maintenance Water Treatment SystemsOur governing standards direct us to meet or exceed the Saskatchewan Drinking Water Quality Standards for health-related potable water parameters.

Parameters UnitsSaskatchewan Standards

& ObjectivesInterlake

WTPJackfish Lake

WTPLa Ronge

WTPVanscoy

WTP



Total Coliform 0 0 0 0 0

E. Coli 0 0 0 0 0Background Bacteria 0 0 0 0No. of Regular Bacteriological Tests Required 24 156 104 52No. of Regular Bacteriological Tests Submitted 403 156 104 533



Minimum mg/L 0.12 0.74 0.61 0.26 0.63 Maximum mg/L 1.42 1.12 1.06 1.80 Average mg/L 1.04 0.82 0.71 1.22Total Chlorine (Cl2) Residuals:

Minimum mg/L 0.52 0.92 0.72 0.50 0.82 Maximum mg/L 1.89 1.28 1.26 1.92 Average mg/L 1.32 1.01 0.95 1.41No. of Free Cl2 Tests Required 24 156 104 52No. of Free Cl2 Tests Performed 403 156 104 533

From water entering distribution systemFree Chlorine (Cl2) Residuals:

Minimum mg/L 0.15 0.004

Minimum mg/L 0.20 0.63 0.61 Minimum mg/L 0.22 0.45 Maximum mg/L 1.59 2.55 1.20 2.00 Average mg/L 1.02 1.04 0.74 1.24No. of Free Cl2 Tests Required 366 732 Continuous Continuous

No. of Free Cl2 Tests Performed Continuous Continuous Continuous Continuous

3. TURBIDITY:


Minimum NTU 0.06 0.10 0.04 0.09 Maximum NTU no standard 0.15 2.22 0.32 0.37 Average NTU 0.08 0.31 0.07 0.18No. of Turbidity Tests Required 24 0 104 52No. of Turbidity Tests Performed 403 1563 104 533

From water leaving the filterSurface Water:

Minimum NTU 0.020 0.04 0.000 Maximum NTU 0.3 0.09 Maximum NTU 1.0 0.320 0.570 Average NTU 0.085 0.07 0.04399th Percentile NTU 0.1 0.0995th Percentile NTU 0.3 0.160 0.079From water entering the distribution systemGroundwater:

Minimum NTU 0.06 Maximum NTU no standard 0.16 Average NTU 0.0895th Percentile NTU 1.0 0.11No. of Turbidity Tests Required 366 732 Continuous Continuous

No. of Turbidity Tests Performed 367 1432 Continuous Continuous

12

Summary of 2016 water quality data (continued) CERTIFIED OPERATION AND MAINTENANCE WATER TREATMENT SYSTEMS



WTPJackfish Lake

WTPLa Ronge

WTPVanscoy

WTP


4. CHEMICAL HEALTH:

Aluminum mg/L no standard 0.014 0.013 0.0014 0.28Antimony mg/L 0.006 <0.0002 <0.0002Arsenic mg/L 0.010 <0.0001 0.0002 0.0004 0.0005Barium mg/L 1.0 0.0025 0.065 0.039 0.087Boron mg/L 5.0 0.24 0.04 0.01 0.03Cadmium mg/L 0.005 <0.00001 <0.00001 0.00001 0.00001Chromium mg/L 0.050 <0.0005 <0.0005 <0.0005 <0.0005Copper mg/L 1.0 0.012 0.0009 0.019 0.0024Iron mg/L 0.3 0.0039 0.0084 0.0053 0.0014Lead mg/L 0.010 <0.0001 0.0002 <0.0001 <0.0001Manganese mg/L 0.05 <0.0005 0.0049 0.0030 <0.0005Selenium mg/L 0.010 <0.0001 <0.0001 <0.0001 0.0005Silver mg/L no standard <0.00005 0.00015Trihalomethanes (THM) mg/L 0.100 0.043 0.045 0.059Uranium mg/L 0.020 <0.0001 0.0001 <0.0001 0.0011Zinc mg/L 5 0.0035 0.019 0.0055 0.0005HAA5 mg/L 0.080 0.028 0.037

5. GENERAL CHEMICAL:Alkalinity mg/L 500 68 206 124 168Bicarbonate mg/L no standard 83 252 151 205Calcium mg/L no standard 1.6 72 31 46Carbonate mg/L no standard <1 <1 <1 <1Chloride mg/L 250 3.6 13 8.0 17Fluoride mg/L 1.5 0.01 0.14 0.55 0.15Hardness (as CaCO3) mg/L 800 6 280 120 196Hydroxide mg/L no standard <1 <1 <1 <1Magnesium mg/L 200 0.5 25 10.4 20Nitrate (as NO3) mg/L 45.0 <0.04 1.85 0.11 0.84pH pH units 6.5 - 9.0 7.46 7.82 7.86 8.10Potassium mg/L no standard 0.2 2.0 1.8 3.1Sodium mg/L 300 30 40 4.2 32Specific Conductivity uS/cm no standard 139 689 257 521Sulphate mg/L 500 3.8 140 1.4 87Sum of Ions mg/L no standard 123 545 208 410TDS mg/L 1500 81 441 149 319

6. CHEMICAL PESTICIDES:Atrazine mg/L 0.005 <0.0002Bromoxynil (Buctril) mg/L 0.005 <0.0005

Carbofuran mg/L 0.09 <0.0002

Chlorpyrifos (Lorsban) mg/L 0.09 <0.0002Dicamba (Banvel) mg/L 0.12 <0.00052, 4-Dichlorophenoxyacetic Acid (2, 4-D) mg/L 0.1 <0.0005Diclofop-methyl (HoeGrass) mg/L 0.009 <0.003Dimethoate (Cygon) mg/L 0.02 <0.002Malathion mg/L 0.19 <0.00022-Methyl-4-Chlorophenoxyacetic Acid (MCPA) mg/L 0.10 <0.001Pentachlorophenol (PCP) mg/L 0.06 <0.002Picloram (Tordon) mg/L 0.19 <0.001Trifluralin (Treflan) mg/L 0.045 <0.0002

13

Summary of 2016 water quality data (continued) CERTIFIED OPERATION AND MAINTENANCE WATER TREATMENT SYSTEMS



WTPJackfish Lake

WTPLa Ronge

WTPVanscoy

WTP


7.CHEMICAL ORGANICS

Benzene mg/L 0.005 <0.0002Benzo(a)pyrene mg/L 0.00001 <0.00001Carbon tetrachloride mg/L 0.005 <0.002Dichlorobenzene 1,2 mg/L 0.200 <0.0005Dichlorobenzene 1,4 mg/L 0.005 <0.0005Dichloroethane 1,2 mg/L 0.005 <0.0005Dichloroethylene 1,1 mg/L 0.014 <0.0005Dichloromethane mg/L 0.050 <0.0005Dichlorophenol 2,4 mg/L 0.900 <0.002Ethylbenzene mg/L 0.0024 <0.0002Monochlorobenzene mg/L 0.080 <0.0005Tetrachlorophenol 2,3,4,6 mg/L 0.100 <0.002Toluene mg/L 0.024 <0.0002Trichloroethylene (TCE) mg/L 0.050 <0.0005Trichlorophenol 2,4,6 mg/L 0.005 <0.002Vinyl Chloride mg/L 0.002 <0.0005Total Xylenes mg/L 0.3 <0.0002

8. PRESSURE DECAY TESTING:

Log Removal Value ≥3 4.27

9. MICROCYSTIN-LR:Microcystin mg/L 0.0015 <0.0001

Not required to test (as per permit).

Due to be sampled again in 2017.

Does not meet Water Security Agency Permit to Operate requirements.

1. Regulatory Limits



Background Bacteria: less than 200 organisms per 100 mL. Any organisms detected over these limits will result in one positive for that sample.



4. Low chlorine residual (< 0.15 mg/L) lasted minutes as field staff were on site. The field staff were shock chlorinating the reservoir due to abnormally high chlorine demand in January. The EPO was notified of the problem. Chlorine meets guidelines 99.99% of the time.

Notes


MPN/100 mL: Most Probable Number per 100 millilitres NT: Not Tested SRC: Saskatchewan Research Council mg/L: Miligrams per litre (equivalent to parts per million) uS/cm: Microsiemens per centimetre Bq/L: Becquerel per litre

NTU: Nephelometric Turbidity Unit ACU: Apparent Colour Unit <: Below detection limits OGV: Operational Guideline Value RWSS: Regional Water Supply System WTP: 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.

14

SaskWater Owned Water Transmission System

Annual Volume in

2016 (m3)

Water Source

Bacteriological & Chlorine

Residuals in Distribution

System

Chlorine Residuals

Entering the Distribution

System

Turbidity

General Chemical &

Health & Toxicity


BuffaloPound East

71,116 City of Regina

1 per week 1 per dayNot required

as per permit

Not required as per permit

1 every 3 months in Jan, Apr, July and Oct

BuffaloPound North

225,752 Buffalo Pound WTP

2 per month ContinuousNot required

as per permit



BuffaloPound West

54,791 Buffalo Pound WTP

2 per month ContinuousNot required

as per permit



SaskatoonEast

969,419 City of Saskatoon

3 per week 1 per day 3 per weekNot required as per permit


SaskatoonNorth

2,219,228 City of Saskatoon



SaskatoonNortheast




SaskatoonNorthwest(Thatcher Ave. & 33rd Street)




SaskatoonWest




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.


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.

Transmission

OWNED WATER TRANSMISSION SYSTEMS

15

SaskWater Operated Water Transmission System

Water Source

Bacteriological & Chlorine

Residuals in Distribution

System

Chlorine Residuals

Entering the Distribution

System

Turbidity

General Chemical &

Health & Toxicity


Caron/MortlachRegional Public Utility

SaskWater 1 per week ContinuousNot required as per permit



North CentralRural PipelineAssociation

SaskWater 4 per month 2 per dayNot required as per permit



Village of Elbow SaskWater 1 per week 1 per week 1 per weekNot required as per permit


Town of Star City

SaskWater 1 per week 1 per dayNot required as per permit



Town of White City

SaskWater 2 per month 1 per day 2 per monthNot required as per permit


Village of Air Ronge

Lac La Ronge Regional

Water Corporation



Village of Edenwold

SaskWater 1 per month 1 per month 1 per monthNot required as per permit


COM WATER TRANSMISSION SYSTEMS

16

SASKWATER OWNED WATER TRANSMISSION SYSTEMS

2016 Drinking Water Quality – SaskWater Owned Water Transmission Systems


& Objectives Buff

alo

Poun

d Ea

st

Buff

alo

Poun

d N

orth

Buff

alo

Poun

d W

est

Sask

atoo

n Ea

st

Sask

atoo

n N

orth

Sask

atoo

n N

orth

east

Sask

atoo

n N

orth

wes

t Th

atch

er A

ve. &

33r

d St

.

Sask

atoo

n W

est



Total Coliform 0 0 0 0 0 0 0 0 0

E. coli 0 0 0 0 0 0 0 0 0Background Bacteria 0 0 0 0 0 0 0 0Number of Bacteriological Tests Required 46 24 24 156 156 52 52 104Number of Bacteriological Tests Submitted 513 513 513 156 156 533 52 1053



Minimum mg/L 0.12 0.09 0.20 0.034

Maximum mg/L 1.80 1.46 1.20 Average mg/L 0.71 0.84 0.61Total Chlorine (Cl2) Residuals:

Minimum mg/L 0.52 0.52 0.61 0.204 0.57 1.04 1.09 1.41 0.68 Maximum mg/L 2.07 1.92 1.78 1.87 1.99 1.92 2.03 2.07 Average mg/L 1.07 1.25 1.04 1.35 1.64 1.62 1.74 1.63No. of Free Cl2 Tests Required 46 24 24 156 156 52 52 104No. of Free Cl2 Tests Performed 513 513 513 156 156 533 52 1053


Minimum mg/L 0.1 0.22 0.005 0.046

Maximum mg/L 2.00 1.43 2.00 Average mg/L 1.13 0.62 0.59Total Chlorine (Cl2) Residuals:

Minimum mg/L 0.5 0.77 1.05 1.18 0.94 0.51 Maximum mg/L 3.01 3.09 2.54 3.42 4.77 Average mg/L 1.70 1.77 1.60 1.64 1.75No. of Free Cll2 Tests Required 366 Continuous Continuous 366 366 366 366 366No. of Free Cll2 Tests Performed Continuous Continuous Continuous Continuous Continuous Continuous Continuous Continuous

3. TURBIDITY:


Minimum NTU 0.09 0.08 0.10 0.10 0.10 0.08 0.10 0.08 Maximum NTU no standard 0.37 0.91 1.16 1.01 0.44 0.42 0.62 2.41 Average NTU 0.21 0.19 0.21 0.23 0.19 0.20 0.19 0.37No. of Turbidity Tests Required 0 0 0 156 156 52 52 104No. of Turbidity Tests Performed 513 513 513 156 156 533 52 1053

17

Summary of 2016 water quality data (continued) SASKWATER OWNED WATER TRANSMISSION SYSTEMS


& Objectives Buff

alo

Poun

d Ea

st

Buff

alo

Poun

d N

orth

Buff

alo

Poun

d W

est

Sask

atoo

n Ea

st

Sask

atoo

n N

orth

Sask

atoo

n N

orth

east

Sask

atoo

n N

orth

wes

t Th

atch

er A

ve. &

33r

d St

.

Sask

atoo

n W

est


4. CHEMICAL HEALTH:

Trihalomethanes (THM) mg/L 0.100 0.076 0.083 0.100 0.040 0.038 0.040 0.038 0.038Sampling for parameters below this point is not required under permit.

Aluminum mg/L no standard 0.014 0.0083 0.014 0.015 0.0085Arsenic mg/L 0.010 0.0003 0.0003 0.0002 0.0002 0.0002Barium mg/L 1.0 0.072 0.050 0.056 0.071 0.050Boron mg/L 5.0 0.03 0.02 0.03 0.03 0.03Cadmium mg/L 0.005 0.00002 0.00001 <0.00001 0.00002 0.00002Chromium mg/L 0.050 <0.0005 0.0005 <0.0005 <0.0005 <0.0005Copper mg/L 1.0 0.0150 0.0010 0.0012 0.0042 0.043Iron mg/L 0.3 0.0078 0.0043 0.0029 0.0068 0.0067Lead mg/L 0.010 0.0027 0.0001 <0.0001 0.0002 0.0002Manganese mg/L 0.05 <0.0005 0.0008 <0.0005 <0.0005 0.0005Selenium mg/L 0.010 0.0004 0.0004 0.0004 0.0004 0.0004Uranium mg/L 0.020 0.0013 0.0013 0.0013 0.0013 0.0012Zinc mg/L 5 0.011 0.0008 0.0016 0.0018 0.029

5. GENERAL CHEMICAL:Alkalinity mg/L 500 109 109 109 135 151 141 133 152Bicarbonate mg/L no standard 133 133 133 165 184 172 162 185Calcium mg/L no standard 42 42 42 38 47 43 44 43Carbonate mg/L no standard 0 0 0 1 <1 1 1 1Chloride mg/L 250 31.2 31.2 31.2 14 13 14 14 14Fluoride mg/L 1.5 0.08 0.08 0.08 0.50 0.56 0.64 1.10 0.70Hardness (as CaCO3) mg/L 800 241 241 241 173 199 185 196 185Hydroxide mg/L no standard 0 0 0 1 <1 1 1 1Magnesium mg/L 200 33 33 33 19 20 19 21 19Nitrate (as NO3) mg/L 45.0 <0.2 <0.2 <0.2 0.97 1.3 0.64 1.0 0.92pH pH units 6.5–9.0 6.6 6.6 6.6 8.08 8.25 8.1 8.1 8.07Potassium mg/L no standard 7.0 7.0 7.0 2.9 3.4 3.1 3.4 2.8Sodium mg/L 300 88 88 88 28 31 30 30 28Specific Conductivity µS/cm no standard 849 849 849 494 506 506 508 527Sulphate mg/L 500 274.2 274.2 274.2 99 100 95 110 97Sum of Ions mg/L no standard 367 400 377 385 390TDS mg/L 1500 609 609 609 296 313 295 308 331

Free chlorine residuals don’t apply due to Saskatoon using chloramination.










4. One low chlorine residual submitted with bacteriological sample October 11, 2016. Bacteriological result was negative.

5. Low water use resulted in low chlorine level. Chorine meets guidelines 99.9% of the time.

6. Low water use resulted in low chlorine level. Chorine meets guidelines 99.5% of the time.

Notes


MPN/100 mL: Most Probable Number per 100 millilitres NT: Not Tested(SRC does not test for E.Coli if Total Coliforms are negative)

SRC: Saskatchewan Research Council mg/L: Miligrams per litre (equivalent to parts per million) uS/cm: Microsiemens per centimetre NTU: Nephelometric Turbidity Unit

<: Below detection limits OGV: Operational Guideline Value

18

2016 Drinking Water Quality – Certified Operation and Maintenance Water Transmission Systems

CERTIFIED OPERATION AND MAINTENANCE WATER TRANSMISSION SYSTEMS

Parameters Units


& Objectives

Caron / Mortlach

Regional Public Utility

North Central Rural Pipeline

AssociationVillage of

ElbowTown of Star City

Town of White City


Village of Edenwold



Total Coliform 0 0 0 0 0 0 0 0

E. coli 0 0 0 0 0 0 0 0Background Bacteria 0 0 0 0 0 0 0Number of Bacteriological Tests Required 52 48 52 52 24 104 12Number of Bacteriological Tests Submitted 52 523 524 505 523 104 523



Minimum mg/L 0.12 0.43 0.50 0.62 0.38 0.40 0.19 0.25 Maximum mg/L 1.62 1.52 1.21 1.64 1.15 0.78 1.30 Average mg/L 0.94 1.02 0.89 1.15 0.92 0.43 0.77Total Chlorine (Cl2) Residuals:

Minimum mg/L 0.52 0.71 0.75 0.81 0.97 0.77 0.41 0.74 Maximum mg/L 1.91 1.77 1.45 2.11 1.55 0.99 2.30 Average mg/L 1.27 1.27 1.10 1.46 1.24 0.68 1.40No. of Cl2 Tests Required 52 48 52 52 24 104 12No. of Cl2 Tests Performed 52 523 524 505 523 104 523


Minimum mg/L 0.1 0.006 0.11 0.49 0.54 0.12 Maximum mg/L 9.98 2.00 2.00 1.51 0.80 Average mg/L 1.28 0.76 1.37 0.95 0.41No. of Free Cl2 Tests Required Continuous 732 366 366 550No. of Free Cl2 Tests Performed Continuous Continuous Continuous Continuous 7303

3. TURBIDITY:


Minimum NTU 0.40 0.03 0.11 0.07 0.11 0.05 0.14 Maximum NTU no standard 1.63 0.25 0.30 0.31 1.36 0.60 0.87 Average NTU 0.78 0.10 0.17 0.12 0.30 0.07 0.33No. of Turbidity Tests Required 0 0 52 0 24 104 12No. of Turbidity Tests Performed 523 523 524 503 523 104 523

From water entering the distribution systemGroundwater:

Minimum NTU 0.03 Maximum NTU no standard 2.00 Average NTU 0.17 95th Percentile 1.0 0.86No. of Turbidity Tests Required 366No. of Turbidity Tests Performed Continuous

19

Parameters Units


& Objectives

Caron / Mortlach

Regional Public Utility

North Central Rural Pipeline

AssociationVillage of

ElbowTown of Star City

Town of White City


Village of Edenwold


4. TRIHALOMETHANES and HALOACETIC ACIDS (HAA5)

Trihalomethanes (THM) mg/L 0.100 0.1567 0.036 0.071 0.052 0.067

Haloacetic Acids 5 mg/L 0.080 0.041 0.029

Summary of 2016 water quality data (continued) CERTIFIED OPERATION AND MAINTENANCE WATER TRANSMISSION SYSTEMS










4. Bacteriological sample not taken the week of May 30, 2016. EPO was notified and an extra sample was taken the following week.

5. Samples were missed the weeks of May 30 & July 25. May 30 was because of a postal service error. July 25 was not sampled because of a Precautionary Drinking Water Advisory on the system. Advisory was due to changing the source water supply due to the oil spill on the North Saskatchewan River.

6. Low water use in the system resulted in low residuals. Chlorine meets guidelines 99.98% of the time.

7. High THMs in systems supplied by the Buffalo Pound WTP due to increasing levels of dissolved organic carbon in Buffalo Pound Lake. Buffalo Pound WTP is aware of the concern and investigating possible solutions.

Notes


MPN/100 mL: Most Probable Number per 100 millilitres NT: Not Tested(SRC does not test for E.Coli if Total Coliforms are negative)

SRC: Saskatchewan Research Council mg/L: Miligrams per litre (equivalent to parts per million) uS/cm: Microsiemens per centimetre NTU: Nephelometric Turbidity Unit

<: Below detection limits OGV: Operational Guideline Value

20

Further water quality information on potable water that we purchase is available from our suppliers:

Buffalo Pound Water Administration Board

http://www.buffalopoundwtp.ca/plant/annual-report

City of Moose Jaw

http://www.moosejaw.ca/engineering/water-quality

City of Regina

https://www.regina.ca/business/water-sewer/learn_about_our_water_system/water-sewer-system/water_quality___compliance_reports/

City of Saskatoon

https://www.saskatoon.ca/services-residents/power-water/water-wastewater/drinking-water and select from the available reports under Related Documents on the right.

Key Drinking Water Parameters and EffectsAs the regulator for water quality, the Water Security Agency determines standards, which are legally enforceable requirements for drinking water quality as per The Waterworks and Sewage Works Regulations. In general, standards are mandatory health parameters for systems that supply water for human consumptive use. The WSA also determines water quality aesthetic objectives, which apply to certain characteristics of or substances found in water for human consumptive or hygienic use.

SaskWater’s governing standards for potable water quality direct us to meet or exceed the water quality parameters set by the province of Saskatchewan.

Additional information on water quality, standards and aesthetic objectives can be found here:

Health Canada – Canadian Drinking Water Quality Guidelines

http://www.hc-sc.gc.ca/ewh-semt/water-eau/drink-potab/ guide/index-eng.php

SaskH2O – My Drinking Water

http://www.saskh2o.ca/MyDrinkingWater.asp

Explanation of TermsPotable 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 36(1) of The Environmental Management and Protection Act, 2010 by Water Security Agency Field Offices (WSAFO) when the WSAFO determines that there is a possibility 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 OrdersThere were no emergency boil water orders (EBWO) issued on any SaskWater owned or operated facilities in 2016.

Precautionary Drinking Water AdvisoriesA 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 twenty-two (22) PDWAs issued on SaskWater owned potable water systems in 2016:

• Buffalo Pound Water Supply System – West had five PDWAs: one on February 17th due to shutdown of the Buffalo Pound Water Treatment Plant (WTP), and others on March 8th, March 22nd, March 29th, and November 30th due to a system wide depressurization of the distribution system due to WTP upgrades.

• Buffalo Pound Water Supply System – North had six PDWAs: one on February 17th due to a shutdown of the Buffalo Pound WTP, others on March 8th, March 22nd, March 29th, and November 30th due to a system wide depressurization of the distribution system due to WTP upgrades, and one on August 2nd due to a system wide depressurization of the water distribution system necessary to conduct a repair.

• Saskatoon Potable Water Supply System – East had a PDWA on March 14th due to a water main break and repair.

Information

21

• Saskatoon Potable Water Supply System – North had a PDWA on April 11th due to a valve install, and one on April 19th due to new service connection tie-ins.

• Saskatoon Potable Water Supply System – West had a PDWA on June 24th due to a private contractor hitting the water line causing a water main break and subsequent system depressurization.

• Saskatoon Potable Water Supply System – North East had a PDWA on June 27th due to a water main break in the City of Saskatoon causing a depressurization of the SaskWater supply line, and one on December 21st due to a system depressurization due to a water main break repair.

• The Wakaw-Humboldt Regional Water Supply System had PDWAs issued on May 11th and July 30th due to a prolonged power outage caused by a transmission line failure, and on August 31st due to a power outage necessitated by plant upgrades.

• The Gravelbourg WTP had a PDWA on July 11th due to water treatment issues at the plant being related to high organic loading in the raw water supply.

• The Codette Regional Water Supply System had a PDWA on July 26th due to an oil spill on the North Saskatchewan River.

Where SaskWater provides certified operation and maintenance services to community or rural pipeline association-owned systems, there were fifteen (15) PDWAs issued in 2016:

• The Town of White City had two PDWAs: one on February 4th and one on March 8th due to a system depressurization.

• The North Central Rural Pipeline Association had a PDWA on May 11th and July 30th due to prolonged power outages and system depressurizations, and one on August 31st due to a power outage necessitated by plant upgrades.

• The Town of Elbow had a PDWA on July 4th due to an unplanned depressurization of the distribution system.

• The Northern Village of Air Ronge had a PDWA on July 19th due to a system depressurization, one on August 9th due to depressurization of the water main to facilitate the connection of water service, one on August 25th due to a depressurization of the water main to facilitate a fire hydrant repair, and one on October 17th due to depressurization.

• The Jackfish Lake West Water Utility had a PDWA on July 27th due to a power outage resulting in depressurization of the distribution

system, and one on November 2nd due to a depressurization of the water main to facilitate a water main break repair.

• The Village of Pierceland had a PDWA on October 6th due to a depressurization required for service connection repairs, and one on October 31st due to a depressurization required for service connection repairs.

• The Lac La Ronge Regional Water Corporation had a PDWA on October 17th due to a depressurization.

There were some instances of SaskWater potable customers having PDWAs issued on their own distribution systems in 2016. 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 is an ongoing PDWA issued by the Water Security Agency in 2008 on SaskWater’s Saskatoon Non-Potable Water Supply System – West. This is a situation where the Water Security Agency has decided that this system falls under The Environmental Management and Protection Act, 2010 and The Waterworks and Sewage Works 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. An alternative potable water source for the system’s residential users has yet to be developed and water users have until December 31, 2018 to find alternate sources. The PDWA that was issued for the Saskatoon Non-potable Water Supply System – East was lifted on February 23, 2016.

22

saskwater.com200 –111 Fairford Street East

Moose Jaw, SK S6H 1C8

Toll-free: 1-888-230-1111

Inquiry: 306-694-3098