EDMONTON WATERWORKS

ANNUAL REPORT TO ALBERTA ENVIRONMENT AND WATER

Approval Number 638-03-00

2017

2017 ANNUAL REPORT

TABLE OF CONTENTS PAGE

1.0 Overview

1.1 Overview ...... 1 1.2 Process Schematic – Rossdale (Plants 1 & 2) ...... 5 1.3 Process Schematic – E. L. Smith (Plant 4) ...... 6 1.4 Summary of Violations and Major Incidents ...... 7 1.5 Alberta Environmental Operator Certifications ...... 10 1.6 Demand Production Statistics (Estimated highlift flow) ...... 16 1.7 Energy Consumption and Usage ...... 17

2.0 Raw Pumpage, Treated Pumpage and Distribution System

2.1 Storage Capacities of Reservoirs ...... 18 2.2 Reservoir Pressure Operating Ranges ...... 19 2.3 Fire Hall and other City Pressure Limits ...... 20 2.4 Regional Customers ...... 21 2.5 Pumping Facilities within the City of Edmonton Distribution System ...... 22 2.6 Production Summary ...... 24 2.7 Raw Water Intake (ML) ...... 25 2.8 Treated Water Production (ML) ...... 26

3.0 Water Quality

3.1 Raw Water Quality – North Saskatchewan River ...... 27 3.2 Treated Water Quality Entering the Distribution System ...... 28 3.3 Rossdale Filters 1 - 9 Particle Counts (no./mL,>2um) ...... 29 3.4 E.L. Smith Filters 1 - 9 Particle Counts (no./mL,>2um) ...... 30 3.5 E.L. Smith Filters 10 -18 Particle Counts (no./mL,>2um) ...... 31 3.6 Rossdale Filters 1 – 9 Turbidity (NTU) ...... 32 3.7 E.L. Smith Filters 1 – 9 Turbidity (NTU) ...... 33 3.8 E.L. Smith Filters 10 – 18 Turbidity (NTU) ...... 34 3.9 Combined Filter Effluent Water Quality ...... 35 3.10 Rossdale UV Disinfection – Filters 1 - 3 ...... 36 3.11 Rossdale UV Disinfection – Filters 4 - 6 ...... 37 3.12 Rossdale UV Disinfection – Filters 7 - 9 ...... 38 3.13 E. L. Smith UV Disinfection – UV Reactors 1 - 4 ...... 39 3.14 Log Removal ...... 40

4.0 Chemicals

4.1 Liquid Alum Chemical Consumption ...... 41 4.2 Primary Polymer (Magnafloc LT 27AG) Chemical Consumption ...... 42 4.3 Carbon Chemical Consumption ...... 43 4.4 Chlorine and Sodium Hypochlorite Chemical Consumption ...... 44

4.5 Filter Polymer (Magnafloc LT 7996) Chemical Consumption ...... 45 4.6 Aqua Ammonia Chemical Consumption ...... 46 4.7 Caustic Soda Chemical Consumption ...... 47 4.8 Fluoride Chemical Consumption ...... 48 4.9 Sodium Bisulfite Chemical Consumption ...... 49

5.0 Waste Streams

5.1 Waste Stream Volumes (ML) ...... 50 5.2 Rossdale Clarifier Blowdown, Clarifier Washdown and Backwash Water Waste Stream Data ...... 51 5.3 Rossdale Waste Stream Data ...... 52 5.4 E.L. Smith Clarifier Blowdown, Clarifier Washdown and Backwash Water Waste Stream Data ...... 53 5.5 E.L. Smith Waste Stream Data ...... 54

6.0 Reservoir Chlorine Residual Part 1 ...... 55

6.1 Reservoir Chlorine Residual Part 2 ...... 56

7.0 Quality Assurance

7.1 Water Quality Objectives ...... 57 7.2 Summary of Major Chemicals, Microbiological and Physical Parameters ...... 58 7.3 Summary of Laboratory Analysis ...... 59 7.4 Bacteriological Data: Water Treatment Plants ...... 60 7.5 Bacteriological Data: Distribution System ...... 61 7.6 Giardia and Cryptosporidium ...... 65 7.7 Treated Water Entering the Distribution System ...... 68 7.8 Rossdale and E.L. Smith combined Filter Effluent Water Analysis ...... 76 7.9 Routine Distribution System ...... 78 7.10 Castledowns, Clareview and Kaskitayo Reservoir...... 82 7.11 Londonderry, Millwoods, and North Jasper Place Reservoir ...... 86 7.12 Ormsby, Papaschase 1 and Papaschase 2 Reservoir ...... 90 7.13 Rosslyn 1, Rosslyn 2 and Thorncliff Reservoir ...... 94 7.14 Routine Distribution System, Field Reservoirs, Fire Stations and Staff Residences ...... 98 7.15 Raw River Water ...... 101 7.16 Statistics on Water Quality Complaint Samples ...... 112 7.17 Method Detection Limits ...... 113 7.18 Explanation of Notations Used ...... 122

1.1 Overview

Through 2017, EPCOR Water Services Inc. (EWSI) continued to satisfy all water demand requirements while meeting our strict water quality criteria. Despite continued growth of the service population, total demand in 2017 fell as compared to 2016 and 2015. This could be a result of cooler, wetter summer conditions but also decreasing demands from the industrial and commercial segments, perhaps indicating an impact of the economy. Overall residential per capita and total per capita values also continued to trend downward primarily due to the installation of water efficient fixtures and appliances.

Rossdale and E.L. Smith WTPs were converted from Direct Filtration (DF) to conventional treatment on February 18th as very mild temperatures resulted in the upstream creeks starting to flow. Some odours were detected and carbon was turned on for 8 days. As the temperatures decreased towards the end of February, Rossdale was able to be converted back into direct filtration mode on March 10 until March 21, where warm temperatures again brought spring runoff conditions. Though colour peaked at 83 TCU, spring runoff did not bring any significant taste and odour concerns and carbon was finally turned off on April 7. There were two rainfall/mountain runoff events near the end of May and mid- June, which resulted in peak turbidities of approximately 550 and 1300 NTU, respectively. These events were handled well with no production problems encountered. There were no other significant rainfall events affecting water quality the rest of the year.

While raw water quality was reasonably stable, there were a couple of significant infrastructure failures that impacted production at E.L. Smith. In late 2016 and again in the fall of 2017, leaks were discovered on one of the two pipelines which convey raw water from the low lift pumphouse to the WTP. While each leak was ultimately repaired, production was impacted due to the requirement to shut down the pumphouse feeding the line. The fish return pumps in one of the lowlift pumphouses at E.L. Smith WTP also failed without warning and had to be repaired offsite.

Edmonton WTPs continued to focus on optimizing chemical dosing and minimizing release of water treatment plant solid residuals to the NSR. A new filter polymer (LT-7995) was implemented at both WTPs as pilot trial tests demonstrated improved filter run times and effluent quality, particularly during direct filtration. A new grade of fluoride (hydrofluosilicic acid) was also implemented at both WTPs. The new product had much lower levels of impurities than the previous product.

As previously mentioned, fall water quality was very good and the Rossdale WTP was able to convert to direct filtration on September 5 for 14 days before returning to conventional mode after a moderate increase in turbidity and colour. It was able to revert to direct filtration mode on October 5 followed by E.L. Smith on October 18 (with a short transition to conventional mode between October 31 and November 10). Overall, the WTPs were able to reduce total solids discharged to the NSR by 25% during the months of January, February, November and December 2017 compared to baseline conventional operation. In- stream sampling and monitoring of WTPs clarifier waste stream discharges to NSR continued in 2017 to further understand the impacts of residuals discharge on the river environment.

There was one AEP approval contravention at the WTPs in 2017, as detailed in Section 1.4 Summary of Violations and Notifications. WTPs continue to improve the integrated safety and environmental management system in accordance with the ISO14001:2004 and OHSAS 18001:2007 standards. The WTPs and reservoirs were re-registered to OHSAS 18001:2007 and registered to the new ISO 14001:2015 standard in November 2017. EWSI continued to upgrade the water treatment plants and the reservoir assets. Total expenditures in 2017 were approximately $29.2M. Some of the major projects are as follows:

• E.L. Smith Solar – preliminary feasibility studies and public consultation occurred in 2017 with the intent of having a 12MW solar farm installed adjacent to the E.L. Smith WTP by the end of 2019; • Rossdale & E.L. Smith - Filter underdrains and the air scour system were upgraded at Rossdale and filter media topped up at E.L. Smith on a number of filters. These projects will continue in 2018; • Roofing upgrades were carried out on various buildings at E.L. Smith and Rossdale, as well as reservoir concrete restoration work at Papaschase, Kaskitayo and E.L. Smith cell #1 reservoirs; • A new small booster pumping station in the Laurel neighborhood of SE Edmonton was started in late 2017, to be completed in early 2018.

In 2017, Water Distribution and Transmission repaired 242 water main breaks on the distribution system in Edmonton, with the majority of main breaks occurring on cast iron pipes. While this number is the lowest number of main breaks experienced since 1961, the trend of a higher proportion of breaks occurring on larger diameter mains continued. The general trend of decrease in water main break activity continued and this improvement in overall reliability of the water distribution system can be attributed to the water main replacement programs as well as the use of more reliable pipe materials in both replacement and new water main construction.

In 2017, the Uni-Directional Flushing program completed flushing and valve exercising in about 36% of Edmonton (2,505 runs).This program is now a six- year cycle with area prioritization emphasis placed on water quality parameters, percentage of Cast Iron Mains, and the relative success of the previous flush. The transmission valve inspection program is ongoing.

EWSI continues to provide water and wastewater services and expertise to numerous communities in Alberta, British Columbia, Regina, as well as industrial sites in Fort McMurray and British Columbia’s Elk Valley.

As we move into 2018, we will continue to focus our efforts on the production of and distribution of high quality water, customer satisfaction, protection of the environment, workplace safety and cost effectiveness. We will continue to ensure our customers receive best value for the services we provide them. More detail on our progress towards meeting our EnviroVista Stewardship community will be included in our annual EnviroVista report, which will uploaded to epcor.com by June 30th, 2018.

(End of Section) 1.2 Process Schematic - Rossdale (Plants 1 & 2)

North Saskatchewan River

Low Lift Pumps Alum Carbon (Seasonally)

Primary Polymer

Clarifier Clarifier Drains to River Clarifers Clarifers Drains to River

Sodium Sodium Hypochlorite Hypochlorite

Stilling Basin Stilling Basin

Filter Polymer

Backwash & Filter to 9 Filters Waste to River*

UV Inactivation Ammonia Bypass* Sodium Hypochlorite (trim) (when required) Caustic Soda Fluoride On Site Reservoirs

High Lift Pumps

Field Reservoirs & Customers

* All chlorinated waste streams are dechlorinated prior to discharge to the river 1.3 Process Schematic - E. L. Smith (Plant 4)

North Saskatchewan River

Low Lift Pumphouse #1 Low Lift Pumphouse #2

Alum (Jet Mixer) Mixer Building Carbon (Seasonally)

Primary Polymer Primary Polymer

Clarifiers Drain to Clarifer 1 Clarifer 2 Clarifer 3 River

C1/C2 Eff Sodium Hypochlorite C3 Eff Channel Sodium Hypochlorite Channel

Filter Polymer Filter Polymer

Backwash & Filter 18 Filters

UV Inactivation Ammonia Sodium Hypochlorite (trim) Caustic Soda Fluoride

Bypass To River* (when required)

Three On-Site Reservoirs

High Lift Pumps

Field Reservoirs & Customers

* All chlorinated waste streams are dechlorinated prior to discharge to the river 1.4 Summary of Violations and Notifications for 2017

EPCOR AESRD Date of Incident Description Report File Incident Number Number EPCOR crew was replacing defective valve 9101 in the vicinity of 93rd street and 65th avenue in Edmonton. This was a planned maintenance event; however, a complete shutdown of the water line was not achieved. When the valve was cut out and pulled from the excavation, potable chlorinated water was released. The water filled the excavation and flowed down the street to a ENV-01350 12-JAN-17 319911 catch basin. Dechlorination pucks were immediately put into the excavation to dechlorinate the water as it was released. As the weather was very cold at the time and some catch basins were frozen the water proceeded down into the nearby Mill Creek ravine. Water continued to flow between 09:30 am until 2:00 pm when the main was shutdown. On January 31st, during quarterly sampling and testing, waste stream 6 was found to have a chlorine residual between 0.20 mg/L-0.30 mg/L at the Rossdale Water Treatment plant. A contractor was working in clarifier C2-2 and its effluent flume to perform structural repairs. Operations had re-directed the drain of a water quality analyzer board (which sits next to C2-2) to C2-2 main drain during the repair. However, dechlorination pucks were not checked and ENV-01365 31-JAN-17 320557 replenished during this period of time, resulting in release of chlorinated waste via Waste Stream (WS) #6 to the North Saskatchewan River (NSR). It appears that approximately 10 minute long discharges were occurring 6 times a day between January 17 and 31. The total volume of the potentially chlorinated release over the 14 day period from January 17 to January 31 is estimated to be approximately 140 m3. Lab personnel was contacted by Alberta Environment and Parks and Alberta Health for a positive result for total coliforms at the Prov Lab for a sample submitted by our sampler as part of the random distribution monitoring program. The sample was collected at the Fire Station #14 PH-00565 located at 7314 - 144 Ave. EPCOR Dispatch was contacted to resample. 10-FEB-17 320893 Five resamples were collected as per the AEP Protocol for Failed Bacteriological Results. Chlorine and turbidity were all within normal operating ranges. Total Coliform and E. coli were negative. It was suspected that the normal disinfection procedure that was followed was not sufficient to remove levels of contamination that the utility tap might have had. As part of our random distribution system monitoring, a sample collected at a City of Edmonton Fire Station was submitted to Prov. Lab. for analysis and came back positive for total coliforms. EPCOR sent our full time sampling Technician to resample. Four resamples were collected as PH-00572 per the AEP Protocol for Failed Bacteriological Results. Chlorine and turbidity were all within 24-MAR-17 322336 normal operating ranges. Total Coliform and E. coli were negative. It was suspected that the normal disinfection procedure that was followed was not sufficient to remove levels of contamination that the utility tap might have had. 1.4 Summary of Violations and Notifications for 2017

EPCOR AESRD Date of Incident Description Report File Incident Number Number Water sample taken from a hydrant replacement H8678 came back Total Coliform positive. Following AEP’s Protocol for Failed Bacteriological Results resamples were collected - upstream, downstream and at the original site. The result was Total Coliform positive even PH-00587 though Chlorine and turbidity were within normal range. One 1 of 4 results from the resamples 02-JUN-17 325217 failed with a TC positive result on the left cap of the replaced hydrant. Resample results were reported from the lab Manager to AEP hotline and determined although this was a second positive it is not a violation, it is considered a contaminated sample point. On Saturday June 17 there was a temporary shutdown to install a new hydrant on an existing watermain. After the construction work was completed the main was back in service and we began to flush out of the new hydrant. After approximately 45 minutes of flushing an in-service sample was taken. This sample tested for Total Coliform. Chlorine and turbidity were within PH-00596 18-JUN-17 325861 normal ranges. This hydrant was then taken out of service. Following AEP’s Protocol for Failed Bacteriological Results resamples were collected - upstream, downstream and at the original site. All had chlorine and turbidity within normal operating ranges and all bacteriological results were negative for total coliform and E. coli. Water Trouble responded to water discharging out of a catch basin adjacent to the Mill Creek Ravine on June 19th. Initially, this water was thought to be the result of a mainbreak and a release of chlorinated water was reported to Alberta Environment and Parks. De-chlorination equipment (pucks) and erosion control was deployed at the scene. Upon further investigation it was determined that the water surfacing from the catch basin was de-chlorinated (zero chlorine) and therefore was very unlikely to be attributed to a mainbreak. The EPCOR Water Infrastructure Project completed a de-chlorination and flush of the isolated previously super chlorinated section of new 300mm PVC pipe at 91 Street and 84 Avenue, two blocks away from the discharging ENV-01501 19-JUN-17 325895 catch basin on June 19, 2017. Previous flushing activities (two prior flushes) had taken place at this site, with no issues. As previous flushes in the area did not result in any surcharging water, it was suspected that there was an issue with the combined sewer on 84 Avenue. City of Edmonton Drainage Operations was contacted on June 20, 2017 and completed an investigation (camera and HydroVac) of the sewer line. The City found a sewer plugged with gravel in the immediate area of 9323 84 Avenue that is the root cause of the discharge. The plugged sewer caused the backup of water onto the street and overflow down into the Mill Creek Ravine. 1.4 Summary of Violations and Notifications for 2017

EPCOR AESRD Date of Incident Description Report File Incident Number Number A sample collected as part of our random distribution monitoring program at Fire Station #10 tested positive for total coliforms and E coli. The incident was reported to Alberta Environment and Parks. Following AEP’s Protocol for Failed Bacteriological Results, a set of four resamples was collected - upstream, downstream and at the original site on June 22. These samples were PH-00598 21-JUN-17 326048 tested at the EPCOR Water Lab. All had chlorine and turbidity within normal operating ranges and all bacteriological results were negative for total coliform and E. coli. A second set of four resamples was collected on June 23. These also tested negative for total coliform and E. coli and were within normal operating ranges for chlorine and turbidity. The cause of the Total coliform and E. coli +ve was determined to be a contaminated sample point. A sample collected as part of our random distribution monitoring program tested positive for total coliforms. The incident was reported through Alberta Environment and Parks. Following AEP’s Protocol for Failed Bacteriological Results, a set of four resamples was PH-00599 21-JUN-17 326052 collected - upstream, downstream and at the original site. All had chlorine and turbidity within normal operating ranges and all bacteriological results were negative for total coliform and E. coli. Water sample from a residential lead renewal line tested Total Coliform positive. Following AEP’s Protocol for Failed Bacteriological Results resamples were collected - upstream, downstream PH-00600 26-JUN-17 326129 and at the original site. All samples tested Total Coliform negative, and chlorine and turbidity were within normal range. Crew replaced a hydrant and hydrant control valve in the Edmonton distribution system. EPCOR crew flushed the hydrant after completion of work, then took a water quality sample on August 3. The resulting sample was Total Coliform positive. PH-00616 03-AUG-17 328019 Following AEP’s Protocol for Failed Bacteriological Results resamples were collected - upstream, downstream and at the original site. All had chlorine and turbidity within normal operating ranges and all bacteriological results were negative for total coliform and E. coli. A sample from our random distribution sampling program tested positive total coliforms. Following AEP’s Protocol for Failed Bacteriological Results, a set of four resamples was collected - upstream, downstream and at the original site on November 10th and 11th. These PH-00633 11-NOV-17 331738 samples were tested at the EPCOR Water Lab and all had chlorine and turbidity within normal operating ranges. All samples tested negative for total coliform and E. coli and were within normal operating ranges for chlorine and turbidity.

(End of Section)

1.5 Alberta Environment Operator Certifications (Effective up to year end 2017) Operator Contact Number: EPCOR Water Services Dispatch (24-hr) (780) 412-6800

ROSSDALE WATER TREATMENT PLANT (LEVEL IV) Employee Name Title Alberta Environment Certification Level Director, Edmonton Water Treatment Plants Senior Manager, Operations Operations Engineer WT III, WWT III Manager, Operations WT IV Manager, Transmission Operations WT III Day Foreman WT III Operations Foreman WT III Operations Foreman WT IV HEI Foreman WT IV Operations Foreman WT IV Operations Foreman WT IV Operations Foreman WT IV Transmission Foreman WT III Training Operator Foreman WT III Lead Hand, Operator WT II Operator I WT III Operator I WT II Lead Hand, Operator WT II Operator I WT II Lead Hand, Operator WT III Operator I WT II Lead Hand, Operator WT IV, WD III, WWT II, WWC III Operator I WT II Lead Hand, Operator WT II Operator I WT II Operator I WT II Operator I WT II, WD II, WWT II, WWC II Operator I WT II, WWT II Operator I WT I Operator I WT I Operator I

E.L. SMITH WATER TREATMENT PLANT (LEVEL IV) Employee Name Title Alberta Environment Certification Level Director, Edmonton Water Treatment Plants Senior Manager, Operations Operations Engineer Manager, Operations WT IV Day Foreman WT IV HEI Foreman WT IV Training Operator Foreman WT IV Operations Foreman WT III 1.5 Alberta Environment Operator Certifications (Effective up to year end 2017) Operator Contact Number: EPCOR Water Services Dispatch (24-hr) (780) 412-6800 E.L. SMITH WATER TREATMENT PLANT (LEVEL IV) (CONTINUED) Employee Name Title Alberta Environment Certification Level Operations Foreman WT IV Operations Foreman WT IV Operations Foreman WT IV Operations Foreman WT IV Lead Hand, Operator WT II Lead Hand, Operator WT II Lead Hand, Operator WT III Lead Hand, Operator WT III Operator I WT III Operator I WTII, WDII, WWT I, WWC II Operator I WT II, WD II, WWT I, WWC I, Operator I WTII, WDI, WWCI, WWTI Lead Hand, Operator WT II Operator I WT II Operator I WT I Operator I WT III, WWT II

DISTRIBUTION SYSTEM (LEVEL IV FACILITY) WATER DISTRIBUTION (WD) – Network Maintenance Employee Alberta Environment Name Title Certification Level Senior Manager, Distribution Maint. Foreman III WD III Foreman III WD III Foreman III WD III Foreman I WD IV Foreman I WD II Foreman I WD II Foreman I WD II Foreman I WD II Foreman I WD II Foreman I WD II Foreman I WD II Foreman I WD II Foreman I WD II Foreman I WD II Foreman I WD II Foreman I WD II Foreman I WD II Equipment Operator III WD II Equipment Operator III WD II 1.5 Alberta Environment Operator Certifications (Effective up to year end 2017) Operator Contact Number: EPCOR Water Services Dispatch (24-hr) (780) 412-6800 DISTRIBUTION SYSTEM (LEVEL IV FACILITY) (CONTINUED) WATER DISTRIBUTION (WD) – Network Maintenance Employee Alberta Environment Title Name Certification Level Equipment Operator III WD I Equipment Operator III WD II

Equipment Operator III WD I Equipment Operator III WD I Equipment Operator III WD II Equipment Operator III WD II Equipment Operator III WD II Equipment Operator III WD I Equipment Operator III WD I Equipment Operator III WD I Equipment Operator III WD II Equipment Operator III WD I Labourer II WD I Labourer II WD I Labourer II WD I Labourer II WD II Labourer II WD I Labourer II WD I Labourer II WD I Labourer II WD I Labourer II WD I Labourer II WD I Labourer II WD II Labourer II WD I Labourer II WD I Labourer II WD I Labourer II WD II Labourer II WD II Labourer II WD I

Manager, Dist Maint Foreman III WD IV Truck Driver III WD I Truck Driver III WD I Truck Driver III WD I Truck Driver III WD I Truck Driver III WD I Labourer III WD I Labourer II WD I Welder WD II Foreman I WD I Labourer III WD I 1.5 Alberta Environment Operator Certifications (Effective up to year end 2017) Operator Contact Number: EPCOR Water Services Dispatch (24-hr) (780) 412-6800 DISTRIBUTION SYSTEM (LEVEL IV FACILITY) (CONTINUED) WATER DISTRIBUTION (WD) – Network Maintenance Employee Alberta Environment Title Name Certification Level Labourer III WD II Labourer III WD II Maintenance Repairman I WD I Maintenance Repairman I WD I Maintenance Repairman I WD I Labourer II WD I

Water Sys Tech Support Specialist WD II Water Sys Tech Support Specialist WD II Water Sys Tech Support Specialist WD IV

DISTRIBUTION SYSTEM (LEVEL IV FACILITY) WATER DISTRIBUTION (WD) – Network Operations Employee Name Title Alberta Environment Certification Level Senior Manager, Distribution Operations Manager, Dist Procedures & Training Network Operator WD IV, WWC II, WT I Network Operator WD IV, WWC I Network Operator WD IV, WWC II Network Operator WD IV, WWC II, WT I

Foreman III WD III Foreman I WD II Foreman I WD II Foreman I WD II Foreman I WD II Labourer III WD II Labourer III WD II Labourer III WD II Labourer III WD II Labourer III WD I Labourer II WD II Labourer II WD II Labourer II WD I Labourer II WD II Labourer II WD I Labourer II WD I Labourer II WD I Labourer II WD II Labourer II WD I 1.5 Alberta Environment Operator Certifications (Effective up to year end 2017) Operator Contact Number: EPCOR Water Services Dispatch (24-hr) (780) 412-6800 DISTRIBUTION SYSTEM (LEVEL IV FACILITY) (CONTINUED) WATER DISTRIBUTION (WD) – Network Operations Employee Name Title Alberta Environment Certification Level Manager, Preventative

Maintenance Foreman III WD II Foreman I WD II Foreman I WD II Water Systems Serviceman WD II Water Systems Serviceman WD II Water Systems Serviceman WD II Water Systems Serviceman WD II Water Systems Serviceman WD II Water Systems Serviceman WD III Water Systems Serviceman WD II Water Systems Serviceman WD II Water Systems Serviceman WD II Water Systems Serviceman WD II Water Systems Serviceman WD II Labourer II WD I Labourer II WD I Labourer II WD III Labourer II WD I Labourer II WD I Labourer II WD I

Manager, Metering & Operations Foreman III WD IV Meter Mech. II WD II Meter Installer II WD II Meter Installer II WD II Meter Installer I WD II Meter Installer I WD I Meter Installer I WD II Meter Installer I WD II Meter Installer I WD I Meter Installer I WD II Meter Installer I WD II Meter Installer I WD II Meter Installer I WD II Meter Installer I WD I Meter Installer I WD I Meter Installer I WD I

Manager, Customer Services Public Service Representative I WD I 1.5 Alberta Environment Operator Certifications (Effective up to year end 2017) Operator Contact Number: EPCOR Water Services Dispatch (24-hr) (780) 412-6800 DISTRIBUTION SYSTEM (LEVEL IV FACILITY) (CONTINUED) WATER DISTRIBUTION (WD) – Network Operations Employee Name Title Alberta Environment Certification Level Public Service Representative I WD II Public Service Representative I WD I Public Service Representative I WD I Team Lead, Dispatch & WD IV, WWC II, WT I, WWT I Inspections Inspector – Water Metering WD II

DISTRIBUTION SYSTEM (LEVEL IV FACILITY) TECHNICAL SERVICES Employee Name Title Alberta Environment Certification Level Senior Manager Dist Tech Services Manager, Claims & Escalations WD II Manager, Field Operations WD II

(End of Section) 1.6 DEMAND/PRODUCTION STATISTICS - December 2017 (Estimated HLP Flow)

ROSSDALE ZONE E.L.SMITH ZONE SYSTEM TOTAL RESERVOIR PUMPAGE MONTHLY MAXIMUM PEAK MONTHLY MAXIMUM PEAK MONTHLY MAXIMUM PEAK ROSSDALE E. L. SMITH TOTAL MONTH PROD'N DAILY DAILY PROD'N DAILY DAILY PROD'N DAILY DAILY ZONE ZONE (ML) (ML) FLOW DEMAND (ML) FLOW DEMAND (ML) FLOW DEMAND (ML) (ML) (ML) (ML) (ML) (ML) (ML) (ML) JANUARY 4,091 6,555 10,646 1,035 2,457 3,492 FEBRUARY 3,379 6,142 9,521 996 2,278 3,274 MARCH 3,615 6,697 10,312 1,131 2,457 3,588 APRIL 3,844 6,556 10,400 1,261 2,674 3,935 MAY 4,827 7,092 11,918 1,526 3,121 4,647 JUNE 4,086 7,822 11,908 1,317 2,820 4,137 JULY 4,956 8,304 13,261 1,447 2,772 4,219 AUGUST 4,833 7,258 12,091 1,298 2,855 4,152 SEPTEMBER 4,127 7,414 11,541 1,076 2,618 3,694 OCTOBER 3,764 6,969 10,732 1,029 2,423 3,452 NOVEMBER 4,057 6,237 10,294 914 2,400 3,313 DECEMBER 4,002 6,503 10,505 937 2,519 3,456 49581 83549 133129 45359 2017 - HIGH 5 DAY DEMAND PLANTS RES. RES. TOTAL Year to Date Data 2017 2016 % CHANGE PROD'N GAIN/LOSS GAIN/LOSS DEMAND TOTAL PRODUCTION TO DATE (ML) 133,127 134,786 (1.3) ML/d % ML ML AVG. DAILY DEMAND TO DATE (ML) 364 369 (1.2) 04-Jul-17 423 -6.8 -42.7 466 PEAK DAILY DEMAND TO DATE (ML) 498 532 (6.5) 05-Jul-17 478 -3.1 -19.6 498 PEAK HOURLY DEMAND TO DATE (ML) 661 756 (12.6) 06-Jul-17 497 3.3 20.5 476 HIGH 5-DAY AVERAGE TO DATE (ML) 480 547 (6.4) 07-Jul-17 494 -0.2 -1.4 495 08-Jul-17 516 8.3 52.2 464 Peak daily demand of 498 ML/d occurred on July 5, 2017 AVERAGE: 480 Peak hourly demand of 661 ML/d occurred on July 5, 20:00 - 21:00.

(End of Section) 1.7 Energy Consumption and Usage Energy Consumption Power Consumption (kWh):

2017 2016 Change - % Rossdale W.T.P. 31,830,769 33,054,292 -3.70% E. L. Smith W.T.P. 44,971,093 44,052,026 2.09% Field Pump Stations 12,916,456 12,649,502 2.11% TOTAL 89,718,318 89,755,820 -0.04%

Gas Consumption (GJ):

2017 2016 Change - % Plants 91,700 94,927 -3.40% Pumping Stations 3,679 3,602 2.15% TOTAL 95,379 98,529 -3.20%

Water Production/Pumpage(ML):

2017 2016 Change - % Rossdale W.T.P. 49,580 52,545 -5.64% E. L. Smith W.T.P. 83,547 82,325 1.48% Pump Stations 44,162 45,359 -2.64% TOTAL 133,127 134,870 -1.29% Note: The reservoirs and booster stations are not included into these totals.

Energy Usage

2017 2016 Energy Consumption for Treatment and 89,718,318 89,755,820 Pumpage (kWh) Energy in kW.h per 674 665 ML pumped Gas Consumption - All 95,379 98,529 Facilities (GJ) Gas Consumption - All Field Pump Stations 3,679 3,602 (GJ)

(End of Section) 2.1 Storage Capacities of Reservoirs

Dead/ Available Fire Storage Operating Gross Storage Emergency Storage (ML) (ML) Storage (ML) (ML) (ML)

Field Reservoir Sites

Rosslyn 97.54 12.56 110.1 12.93 123.03

Clareview 50.51 2.95 53.46 11.14 64.60

Papaschase 66.80 9.71 76.51 5.63 82.14

Londonderry 39.10 2.58 41.68 3.56 45.24

North Jasper Place 29.74 4.66 34.4 11.66 46.06

Ormsby 37.41 2.99 40.4 4.87 45.27

Thorncliff 37.10 2.93 40.03 3.4 43.43

Kaskitayo 21.78 3.96 25.74 3.2 28.94

Mill Woods 46.98 5.92 52.9 3.33 56.23

Castle Downs 22.70 2.41 25.11 8.93 34.04

Sub Total 449.66 50.67 500.33 68.65 568.98

Water Treatment Plant Reservoirs

Rossdale 80.42 0.00 80.42 16.98 97.40

E.L. Smith 95.20 0.00 95.20 42.30 137.50

Sub Total 175.62 0.00 175.62 59.28 234.9

GRAND TOTAL 625.28 50.67 675.95 127.93 803.88

(End of Section) 2.2 Reservoir Pressure Operating Ranges

Facilities Elev., m Operating Pressure Range, kPa (mTH) TREATMENT Discharge Min. Normal Range High PRV PLANTS Rossdale 622 840 (708) 860 (710) 880 (712) 900 (714) 950 (719) 960-980 E.L.Smith 621 950 (718) 960 (719) 980 (721) 1000 (723) 1080 (731) 1175 RESERVOIRS Inlet Disch. Fill Alarm Normal High PRV Clareview 650 649 430 (693) 530 (703) 550 (706) 580 (709) 620 (712) 610 Rosslyn 1 670 310 (702) 370 (708) 390 (710) 420 (713) 450 (716) Rosslyn 2 671 300 (702) 330 (705) 380 (710) 410 (713) 440 (716) North Jasper Place 675 675 290 (705) 350 (711) 370 (713) 390 (715) 470 (723) Thorncliff 672 672 350 (708) 380 (711) 420 (715) 440 (717) 495 (723) Ormsby 1 679 679 325 (712) 355 (715) 365 (716) 380 (718) 460 (726) Castledowns 1* 679 260 (705) 300 (710) 380 (718) 400 (720) 570 Papaschase 1 693 variable 120 (705) 160 (710) 200 (714) 300 (724) Londonderry 678 678 210 (700) 430 (722) 460 (725) 490 (728) 540 (733) 570

Castledowns 679 678 260 (705) 430 (722) 460 (725) 490 (728) 540 (733) 570

Rosslyn 3 669 500 (720) 530 (723) 560 (726) 630 (733) 660 Ormsby, Lewis 679 625 (743) 645 (746) 660 (747) 680 (750) 710 Estates Kaskitayo 2 674 674 345 (709) 550 (730) 590 (734) 640 (739) 690 (744) 680 Papaschase 2 689 690 70 (696) 380 (729) 410 (732) 450 (736) 500 (741) 520 Mill Woods 679 679 270 (706) 520 (732) 550 (735) 590 (739) 620 (742) 630

BOOSTER Low Suct. Discharge Alarm Min Normal High High High STATIONS Trip

Burnewood 695 60 (701) 550 (751) 560 (752) 580 (754) 610 (757) 620-640 Ellerslie 695 695 60 (701) 540 (750) 550 (751) 560 (752) 580 (754) 600 (756) Terwillegar ~683 60 (689) 480 (732) 540 (738) 590 (743) 650 (749) 640 Parkland 682 620 (745) 650 (749) 700 (754) 720 (756) Walker 724 160 410 (759) 440 (762) 480 (765) 500 (767) 650 Big Lake 678 270 365 (709) 395 (713) 425 (714) 475 (719) 625 *Emergency Only (End of Section) 2.3 Fire Hall & Other City Pressure Limits

Elevation m T. Head kPa LOCATION m Min. Max. Min. Max. # Fire Hall 1 10351 96 St. 661.759 703 722 400 540 2 10217 107 St. 667.018 708 717 400 490 3 11226 76 Ave. 667.792 708 717 395 485 5 9020 111 Ave. 663.986 708 717 430 520 6 8105 96 St. 663.863 708 717 430 520 7 5025 118 Ave. 655.873 705 713 480 560 8 12503 128 St. 674.153 708 713 330 410 9 5604 50 St. 693.967 730 740 350 455 11 6110 98 Ave. 664.07* 708 717 430 520 12 9020 156 St. 673.546 711 720 360 450 13 4035 119 St. 669.812 716 723 450 520 15 5120 97 St. 675.232 708 715 320 390 16 2940 66 St. 693.516 730 740 350 455 17 15505 Castledowns Rd. 680.669 715 740 340 585 20 2303 105 St. 679.57 713 720 325 395 21 10909 120 Ave. 668.127 708 713 390 440 Decom. 2017 22 10124 123 St. 668.561 708 716 385 465 24 131 Haddow Cl. 685* 717 730 305 430 New 2009 26 2803 34 St. 712.5 742 766 295 525 New 2011 27 1203 Ellwood Rd. SW 686 724 749 375 615 New 2017 28 12110 26 Ave. SW 695 719 756 230 625 New 2015 Other City Points Westview Village 696.7 729 742 320 450 Whitemud Co-op 692 723 733 300 400 Sobeys 167 Ave 91 St 682* 720 735 370 520 Home Depot 17 St 707.6* 748 757 400 480 Home Depot Windermere 684* 730 742 400 660 New 2011 Clover Bar 731.87 803 762 300 700 New 2013 TAMS 750.14 778 807 270 560 New 2013 NOTE: 50 kPa ALLOWANCE FOR ALARM LIMITS AT MINIMUM AND MAXIMUM OBJ (End of Section) * appoximate elevation 2.4 Regional Customers

REGIONAL ELEVATION MINIMUM Normal Range HIGH CUSTOMER m HGL kPa HGL kPa HGL kPa HGL kPa St. Albert - Sturgeon 685.173 703 175 707 214 712 263 714 283 St. Albert - Oakmount** 657 700 441 702 461 712 559 718 618 Morinville ** 658.977 707 471 715 550 721 608 726 657 Namao * 681.495 710 280 713 309 726 437 730 476 C. of Sturgeon * 692 716 231 718 255 724 314 729 363 CRNWSC 655.668 699.55 450 705 484 710 533 712 553 C. of Strathcona 92 Ave. 664.384 693 281 700 349 709 438 713 477 Leduc SWWSC * 690.104 721 303 724 333 730 391 735 440 Westview Village * 696.7 729 320 731 340 738 410 742 450 River Cree * 703.7 738 336 741 366 747 424 750 454 Parkland 682.353 711 276 713 301 715 320 718 350 Whitemud Co-op 692 721 284 724 314 730 373 735 422 * Water supply from a secondary pressure zone ** St. Albert and Morinville supply from the Primary System (assuming combined flow of 125 L/s) NOTE: 30-50 kPa ALLOWANCE FOR MINIMUM AND MAXIMUM OBJECTIVE ALARM LIMITS

(End of Section) 2.5 Pumping Facilities

Number of Pumps Maximum Design Facilities Year Fixed Variable Discharge Flow Built Total Speed Speed by Pump (ML/d) Water Treatment Plants Rossdale Plant 1947 6 4 2 4 @ 100, 2 @ 105 E.L. Smith Plant 1976 4 2 2 2 @ 95, 2 @ 205 Primary Zone Clareview 1979 3 1 2 1 @ 14, 2 @ 30 Rosslyn 1 1955 3 3 0 3 @ 20 Rosslyn 2 1969 1 1 0 1 @ 22 North Jasper Place 1974 4 3 1 2 @ 13, 2 @ 26 Thorncliff 1970 3 3 0 3 @ 12 Ormsby Place 1969 3 2 1* 2 @ 16, 1@ 32 Papaschase 1 1976/82 2 2 0 2 @ 20 North Secondary Zone Londonderry 1974/79 3 1 2 2 @ 15, 1 @ 21 Castledowns 1979 3 1 2 3 @ 17 Rosslyn 3 1963 3 3** 0 2 @ 26; 1@18 West Secondary Zone Parkland Booster St. 1973 2 2 0 1 @ 2, 1 @ 4 Ormsby, Lewis Estates 1969 3 0 3 1 @ 20, 1@ 15, 1 @ 5 South Secondary Zone Papaschase 2 1968/71 3 2 1 2 @ 13, 1 @ 23 Mill Woods 1977 5 3 2 3 @ 16, 1 @ 24, 1 @ 32 Kaskitayo 1980 5 3 2 3 @ 10, 2 @ 15 Terwillegar Booster St. 1998 3 2 1 3 @ 17 South Tertiary Zone Burnewood Booster St. 1985 4 2 2 3 @ 19, 1 @ 14 Ellerslie Booster St. 2007 2 0 2 2 @ 6 South Quaternary Zone Walker Booster St. 2015 5 0 5 2 @ 2, 2 @ 7, 1@ 17 Big Lake Booster St. 2016 5 0 5 2 @ 8, 2 @ 25, 1 @ 34 TOTAL 76 37 35 *Ormsby Pump #3 can be used to support Primary Pressure Zone or West Secondary Pressure Zone depending on the discharge header valve configuation. The totals include this pump once.

** Rosslyn Pump 5 was converted to a booster pump in 2013 and contributes to the North Secondary zone so it now counts as a Rosslyn 3 pump. (End of Section) 2.6 Production Summary

Water Production 2017 2016 2015 Treated and Pumped into the System 133,127 134,870 139,217 Water Treated at Rossdale Plants 49,580 52,545 54,130 Water Treated at E. L. Smith Plant 83,547 82,325 85,087 Supplied to Residential Customers 63,307 63,408 64,991 Supplied to Commercial/Industrial Customers 27,537 28,131 29,016 Supplied to Suburban Customers 34,655 34,825 35,986 Percentage Accounted for from: Metered & Bulk Sources 95% 94% 94% Assumed System Leakage 5% 6% 6% Average Day Pumpage (ML) 365 370 381 Peak Day Demand (ML) 498 532 574

Population Served 2017 2016 2015 Approximate Population Served (City) 941,871 899,447 895,000 Approximate Population Served (Region)* 335,000 313,000 294,000 Approximate Population Served (Total) 1,276,871 1,212,447 1,189,000 #DIV/0! 5.3% 2.0% #DIV/0! Per Capita Consumption (L/cap) 2017 2016 2015 Average Day Demand 286 305 321 Peak Day Demand 390 439 483 *Note: beginning in 2015 regional customer population reporting is standardized. The method is to use the census year (2011, 2016...) as a base, then apply a growth factor to subsequent years and round to the nearest thousand. 2013, 2012, and 2011 will be corrected to follow this method. 2009 will be changed back to the original reported value.

(End of Section) 2.7 Raw Water Intake (ML) 2017

Rossdale E.L. Smith Plants Combined Month Plant 1 Plant 2 Plant Total Min Max Avg Plant Total Total Min Max Avg Total Min Max Avg Total January 62 83 74 2,305 42 84 76 2,350 4,656 116 298 250 7,755 12,411 February 17 110 83 2,337 0.0 117 52 1,463 3,800 136 291 258 7,237 11,037 March 12 73 27 824 41 140 105 3,253 4,077 204 276 247 7,669 11,746 April 50 81 59 1,776 71 101 86 2,580 4,355 224 289 255 7,654 12,009 May 57 94 68 2,108 90 111 99 3,075 5,184 54 316 263 8,142 13,325 June 24 80 11 320 97 164 139 4,166 4,486 260 341 292 8,771 13,257 July 24 89 59 1,836 69 195 118 3,645 5,481 260 357 307 9,504 14,984 August 19 95 77 2,395 23 110 95 2,953 5,348 56 331 269 8,349 13,696 September 21 109 38 1,138 74 151 113 3,389 4,527 50 347 281 8,416 12,942 October 999,999 1.3 0.1 4.3 56 150 135 4,194 4,198 59 294 265 8,213 12,411 November 11 63 43 1,301 41 150 108 3,255 4,556 56 291 247 7,415 11,970 December 23 60 52 1,599 39 115 91 2,835 4,435 62 256 239 7,422 11,857

Annual Total 17,943 37,158 55,101 96,546 151,647

Annual 11 110 49 0.0 195 102 50 357 265 Min/Max/Avg 2.8 Treated Water Production (ML) 2017

Rossdale (Plant 1 & Plant 2) E.L. Smith Plants Combined

Flow Meters Flow Meters Estimated (Highlift Flow) Month Avg Total

Min Max Avg Total Min Max Avg Total Min Max Avg Total

January 1,811.69 1,811.69 1700.7 0.06,166.95 1,796.97 6,540.501,796.97 1700.2213 5.4 132 31.0 4096.44,091 31.00 0.0 31.0282 199 6,182 0.0 296 211 6,555 343 10,647 February 1,658.15 1,658.15 1456.0 0.05,800.09 1,655.82 6,139.421,655.82 1454.1214 9.2 121 28.0 3386.93,379 28.00 0.0 28.0283 207 5,802 0.0 298 219 6,142 340 9,521 1,164.02March 1,164.02 1659.0 0.06,347.91 1,196.61 6,729.561,196.61 1660.7214 12.9 117 31.0 3629.83,615 31.00 0.0 31.0283 204 6,315 0.0 298 216 6,697 333 10,312 April 918.11 1691.8918.11 4.86,181.65 913.58 6,551.17 1685.1913.58213 17.7 128 30.0 3855.03,844 30.00 87 30.0283 206 6,186 90 298 219 6,556 347 10,400 1,474.65May 1,474.65 1690.1 8.66,695.93 1,437.61 7,054.821,437.61 1695.8215 18.1 156 31.0 4850.64,827 31.00 0.0 31.0292 217 6,733 0.0 305 229 7,092 384 11,919 1,906.93June 1,906.93 1642.7 0.07,447.94 1,909.95 7,824.871,909.95 1631.8214 12.9 136 30.0 4087.74,086 30.00 90 30.0309 248 7,445 93 324 261 7,822 397 11,907 1,997.62July 1,997.62 1757.8 4.97,918.51 2,002.25 8,308.952,002.25 1760.8215 17.0 160 31.0 4976.04,956 31.00 0.0 31.0349 255 7,914 0.0 362 268 8,304 428 13,260 August1,983.55 1,983.55 1719.8 0.06,882.20 1,969.66 7,244.371,969.66 1746.7216 18.2 156 31.0 4878.24,833 31.00 0.0 31.0353 222 6,896 0.0 371 234 7,258 390 12,091 September 1,913.06 1,913.06 1608.9 0.07,066.04 1,935.19 7,435.761,935.19 1588.2215 11.8 138 30.0 4117.64,127 30.00 0.0 30.0337 235 7,044 0.0 356 247 7,414 385 11,540 October 1,865.15 1,865.15 1610.6 0.06,568.33 1,852.07 6,955.641,852.07 1627.8212 6.9 121 31.0 3788.03,764 31.00 0.0 31.0284 212 6,581 0.0 300 225 6,969 346 10,733 November 1,793.62 1,793.62 1625.8 0.05,911.46 1,806.71 6,249.661,806.71 1593.9213 5.2 135 30.0 4031.64,058 30.00 0.0 30.0284 197 5,898 0.0 375 208 6,237 343 10,295 December 1,863.02 1,863.02 1732.3 0.06,108.03 1,853.94 6,494.341,853.94 1743.6215 5.4 129 31.0 4018.84,002 31.00 0.0 31.0281 197 6,117 0.0 296 210 6,503 339 10,506

Annual Total 49,583 79,114 83,548 133,131

Annual 0.0 216 136 0.0 353 217 0.0 375 229 365 Min/Max/Avg

NOTES: ' -- ' indicates plant offline - Estimated flows are based on UV effluent flow meters to address inaccuracy of highlift flow meters. - As of July 1, 2009, plants combined data is the sum of Rossdale flow meters and E.L. Smith estimated flow data. 3.1 Raw Water Quality - North Saskatchewan River 2017

Rossdale E.L. Smith

Fluoride Fluoride Turbidity (NTU) pH Month Colour (TCU) (mg/L) Turbidity (NTU) pH Colour (TCU) (mg/L)

Min Max Avg Min Max Avg Min Max Avg Avg Min Max Avg Min Max Avg Min Max Avg Avg January 1.4 3.9 2.0 8.0 8.1 8.0 4.5 6.6 5.7 0.12 1.6 31 3.3 7.9 8.1 8.0 4.1 7.0 5.5 0.12 February 1.4 30 3.6 7.9 8.1 8.0 4.7 28.0 10.0 0.12 1.5 6.8 3.0 7.8 8.0 7.9 4.3 26.1 9.4 0.12 March 1.7 60 9.6 7.7 8.3 8.0 1.6 83.4 16.8 0.13 1.3 40 7.3 7.8 8.2 7.9 2.6 80.1 15.5 0.13 April 16 1,100 110 7.8 8.2 8.0 23.5 76.3 41.3 0.11 13 1,000 100 7.7 8.2 7.9 10.3 68.5 36.4 0.10 May 20 550 75 8.0 8.3 8.2 18.5 63.1 27.9 0.12 23 550 80 7.8 8.4 8.2 17.0 63.7 26.7 0.12 June 13 850 100 8.0 8.4 8.2 10.1 73.3 26.9 0.13 21 1,300 140 8.0 8.6 8.3 9.3 78.3 26.0 0.12 July 1.9 17 7.5 8.2 8.5 8.4 5.0 12.0 7.5 0.13 2.7 300 11 8.4 8.7 8.5 4.5 11.4 7.1 0.13 August 1.4 11 2.5 8.2 8.5 8.4 3.2 8.7 5.0 0.13 1.6 50 3.4 8.3 8.6 8.5 3.2 8.7 4.8 0.13 September 1.6 25 4.7 8.1 8.5 8.3 2.4 10.7 4.9 0.13 1.5 19 3.4 8.3 8.5 8.4 2.2 11.2 4.7 0.12 October 1.9 6.7 2.9 8.2 8.4 8.3 3.2 8.3 5.1 0.12 1.8 5.3 2.6 7.7 8.5 8.3 3.6 7.8 5.0 0.12 November 1.5 8.5 3.0 8.0 8.3 8.2 3.4 5.8 4.2 0.12 1.4 8.5 3.1 8.0 8.3 8.2 3.5 6.5 4.4 0.12 December 1.2 2.6 1.6 8.0 8.2 8.1 2.5 4.0 3.3 0.12 1.0 3.6 1.5 8.0 8.4 8.1 2.1 4.4 3.5 0.12

Annual Min/Max/Avg 1.2 1,100 27 7.7 8.5 8.2 1.6 83.4 13.2 0.12 1.0 1,300 30 7.7 8.7 8.2 2.1 80.1 12.4 0.12

NOTES: ' -- ' indicates plant offline 3.2 Treated Water Quality Entering the Distribution System 2017

Rossdale E.L. Smith Turbidity Chloramine Fluoride Total Hardness Colour Turbidity Chloramine Fluoride Total Hardness Colour (NTU) Residual (mg/L) pH Residual (mg/L) (mg/L as CaC03) (TCU) (NTU) Residual (mg/L) pH Residual (mg/L) (mg/L as CaC03) (TCU) Month Min Max Avg Min Max Avg Min Max Avg Min Max Avg Avg Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Avg Avg

January 0.05 0.09 0.07 1.90 2.21 2.05 7.9 8.0 8.0 0.64 0.76 0.68 189 0.8 0.04 0.07 0.04 1.87 2.29 2.04 7.5 8.3 8.0 0.63 0.72 0.67 189 0.8 February 0.03 0.09 0.06 1.70 2.25 2.03 7.5 8.0 7.9 0.63 0.73 0.69 192 0.9 0.03 0.06 0.04 1.89 2.23 2.02 7.5 7.9 7.8 0.62 0.73 0.66 192 0.8 March 0.04 0.08 0.05 1.90 2.18 2.02 7.6 8.0 7.9 0.63 0.78 0.68 188 0.7 0.03 0.12 0.04 1.85 2.24 2.02 7.6 8.4 7.9 0.64 0.75 0.69 187 0.6 April 0.04 0.10 0.05 1.90 2.28 2.08 7.6 8.0 7.8 0.62 0.75 0.67 148 0.8 0.03 0.07 0.04 1.92 2.33 2.05 7.8 8.2 7.9 0.60 0.75 0.66 148 1.0 May 0.03 0.08 0.05 1.90 2.22 2.03 7.6 7.9 7.8 0.60 0.77 0.66 164 0.8 0.03 0.08 0.03 1.63 2.16 2.03 7.5 8.3 7.7 0.62 0.80 0.67 163 1.1 June 0.03 0.08 0.05 1.70 2.18 2.04 7.6 8.2 7.8 0.64 0.77 0.70 167 0.8 0.03 0.04 0.04 1.70 2.32 2.06 7.5 7.8 7.6 0.61 0.77 0.68 167 1.1 July 0.04 0.09 0.06 1.90 2.19 2.00 7.7 7.9 7.8 0.64 0.80 0.69 170 0.8 0.04 0.07 0.04 1.77 2.29 1.99 7.6 7.8 7.7 0.60 0.77 0.66 169 0.7 August 0.04 0.10 0.06 1.70 2.32 1.97 7.8 8.1 7.9 0.60 0.80 0.66 164 0.5 0.04 0.06 0.04 1.84 2.23 1.99 7.6 8.0 7.8 0.61 0.71 0.65 163 0.4 September 0.04 0.13 0.07 1.80 2.22 2.01 7.6 8.3 7.9 0.62 0.75 0.68 160 0.6 0.03 0.05 0.04 1.84 2.33 2.02 7.7 8.0 7.8 0.60 0.80 0.65 160 0.4 October 0.04 0.17 0.10 1.90 2.33 2.05 7.7 8.2 8.1 0.60 0.72 0.66 160 1.0 0.03 0.08 0.05 1.91 2.23 2.06 7.8 8.3 8.0 0.60 0.80 0.68 159 0.7 November 0.05 0.11 0.07 1.90 2.29 2.03 7.8 8.2 8.2 0.61 0.72 0.67 172 1.0 0.04 0.08 0.04 1.92 2.16 2.05 7.5 8.2 7.9 0.60 0.78 0.68 170 0.9 December 0.04 0.09 0.06 1.70 2.24 2.05 7.7 8.2 8.1 0.63 0.87 0.67 174 0.7 0.04 0.08 0.04 1.63 2.36 2.06 7.8 8.2 7.9 0.60 0.80 0.70 173 0.8

Annual Min/Max/ 0.03 0.17 0.06 1.71 2.33 2.03 7.5 8.3 7.9 0.60 0.87 0.68 171 0.8 0.03 0.12 0.04 1.63 2.36 2.03 7.5 8.4 7.8 0.60 0.80 0.67 170 0.8 Avg

NOTES: ' -- ' indicates plant offline 3.3 Rossdale Filters 1 - 9 Particle Counts (no./mL, >2um) 2017

Filter 1 2 3 4 5 6 7 8 9

Month Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg

January 1 45 7 1 45 5 1 44 5 1 45 5 2 45 11 1 45 6 1 45 5 1 48 5 ------February 1 44 7 1 43 5 1 44 6 1 44 5 1 39 7 1 42 5 1 43 6 1 34 5 ------March 1 45 8 1 46 9 1 45 6 1 45 7 1 42 10 1 48 6 1 47 6 1 49 7 ------April 1 46 11 1 50 10 1 45 8 1 45 8 1 47 13 1 46 7 1 44 7 1 43 8 ------May 1 31 3 1 33 4 1 29 3 1 30 2 1 32 4 1 40 3 1 36 5 1 41 4 1 38 3 June 1 29 2 1 30 2 1 41 3 1 24 2 1 45 3 1 42 2 1 31 2 1 38 3 1 40 2 July 1 34 7 1 43 7 1 31 7 1 22 7 3 37 10 3 19 8 2 35 8 5 32 9 2 44 9 August 1 34 8 1 34 8 1 28 8 1 31 7 1 38 10 1 28 9 1 36 8 ------1 45 8 September 1 29 3 1 24 3 1 29 2 1 27 2 1 44 9 1 45 9 1 45 8 1 35 9 1 45 9 October 1 40 14 1 43 13 1 43 15 ------1 43 12 1 45 12 1 39 11 1 45 11 1 41 12 November 1 43 6 1 45 5 1 45 5 1 45 6 1 35 6 ------1 42 5 1 45 7 1 36 6 December 1 43 4 1 41 4 1 33 2 1 45 3 1 43 5 1 45 5 1 41 5 1 43 4 1 44 3 Annual 1 46 7 1 50 6 1 45 6 1 45 5 1 47 8 1 48 7 1 47 7 1 49 6 1 45 7 Min/Max/Avg

NOTE: ' -- ' indicates filter offline 3.4 E.L. Smith Filters 1 - 9 Particle Counts (no./mL, >2um) 2017

Filter 1 2 3 4 5 6 7 8 9

Month Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg

January 1 36 4 1 45 5 1 43 5 1 45 5 1 40 3 1 45 5 1 45 13 1 45 9 1 46 10 February 1 31 5 1 44 5 1 45 5 1 44 5 1 39 5 1 45 5 1 45 13 1 39 10 1 45 10 March 1 50 8 1 46 6 1 50 6 1 51 6 1 50 8 1 48 6 1 50 7 1 50 12 1 41 5 April 1 50 7 1 50 8 1 50 9 1 50 8 1 50 6 1 49 7 1 46 7 1 45 9 1 45 7 May 1 28 5 1 32 6 1 42 5 1 39 5 1 31 6 1 30 5 1 44 6 1 39 7 1 41 5 June 1 44 3 1 39 3 1 45 5 1 45 4 1 46 3 1 31 4 1 34 4 1 43 5 1 44 4 July 1 44 7 1 35 6 1 27 5 1 39 6 1 36 7 1 35 6 1 43 11 1 45 15 1 45 10 August 1 37 9 1 35 8 1 29 8 1 41 9 1 36 10 1 45 10 1 45 17 1 45 17 1 45 15 September 1 45 11 1 42 8 1 34 7 1 36 7 1 36 8 1 37 8 1 45 12 2 45 18 1 44 12 October 1 35 7 1 40 7 1 26 7 1 40 7 1 37 8 1 40 7 1 44 10 1 45 14 1 45 12 November 1 32 4 1 42 4 1 40 4 1 31 4 1 31 5 1 33 5 1 36 7 1 44 8 1 42 7 December 1 43 3 1 29 3 1 12 3 1 38 3 1 25 4 1 30 3 1 30 5 1 32 5 1 31 5

Annual 1 50 6 1 50 6 1 50 6 1 51 6 1 50 6 1 49 6 1 50 9 1 50 11 1 46 9 Min/Max/Avg

NOTE: ' -- ' indicates filter offline 3.5 E.L. Smith Filters 10 - 18 Particle Counts (no./mL, >2um) 2017

Filter 10 11 12 13 14 15 16 17 18

Month Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg

January 1 45 8 1 45 12 1 45 16 1 45 5 1 45 4 1 45 4 1 44 6 1 45 6 1 45 5 February 1 39 8 1 45 11 1 45 13 1 44 4 1 28 4 1 45 5 1 39 6 1 45 5 1 38 5 March 1 48 7 1 47 6 1 42 6 1 30 5 1 43 5 1 37 4 1 32 5 1 33 5 1 32 5 April 1 47 7 1 50 8 1 50 10 1 44 6 1 42 5 1 44 6 1 45 7 1 45 6 1 45 7 May 1 45 5 1 44 5 1 45 7 1 25 4 1 22 4 1 25 4 1 31 5 1 23 4 1 28 5 June 1 43 4 1 43 4 1 36 5 1 32 3 1 35 3 1 39 4 1 33 4 1 32 3 1 41 3 July 1 45 13 1 45 11 1 45 11 1 41 9 1 42 9 1 39 9 1 41 9 1 38 9 1 40 10 August 1 45 15 1 44 15 2 45 16 2 41 13 2 41 13 2 41 13 2 45 13 1 41 12 1 45 13 September 1 45 13 1 45 12 1 43 12 1 39 11 1 39 11 1 38 11 1 42 11 1 44 10 1 40 10 October 1 42 12 1 44 11 1 42 11 1 34 10 1 39 10 1 39 10 1 39 9 1 39 10 1 38 9 November ------1 45 8 1 45 15 1 33 6 1 34 6 1 34 6 1 43 5 1 44 6 1 43 6 December 1 43 3 1 44 5 2 45 13 1 19 3 1 21 3 1 17 3 1 24 3 1 22 3 1 25 4 Annual 1 48 9 1 50 9 1 50 11 1 45 7 1 45 6 1 45 7 1 45 7 1 45 7 1 45 7 Min/Max/Avg

NOTES: ' -- ' indicates filter offline 3.6 Rossdale Filters 1 - 9 Turbidity (NTU) 2017

Filter 1 2 3 4 5 6 7 8 9

Month Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg

January 0.02 0.09 0.03 0.02 0.08 0.03 0.03 0.10 0.05 0.03 0.09 0.04 0.03 0.10 0.06 0.02 0.10 0.04 0.01 0.09 0.02 0.02 0.10 0.04 ------February 0.02 0.09 0.04 0.02 0.07 0.02 0.03 0.10 0.05 0.02 0.09 0.04 0.02 0.07 0.03 0.02 0.10 0.04 0.01 0.05 0.02 0.02 0.09 0.04 ------March 0.02 0.09 0.04 0.01 0.05 0.02 0.03 0.08 0.04 0.02 0.08 0.03 0.02 0.07 0.03 0.02 0.08 0.03 0.01 0.06 0.02 0.01 0.07 0.03 ------April 0.02 0.08 0.03 0.01 0.03 0.01 0.03 0.09 0.04 0.02 0.10 0.03 0.02 0.06 0.03 0.02 0.08 0.03 0.01 0.06 0.02 0.01 0.08 0.03 ------May 0.02 0.08 0.03 0.01 0.07 0.02 0.03 0.08 0.03 0.02 0.08 0.03 0.02 0.08 0.03 0.01 0.08 0.02 0.01 0.06 0.02 0.02 0.08 0.03 0.02 0.09 0.03 June 0.02 0.07 0.03 0.01 0.06 0.02 0.03 0.08 0.04 0.02 0.08 0.03 0.01 0.07 0.02 0.02 0.08 0.04 0.01 0.05 0.01 0.02 0.08 0.03 0.02 0.09 0.03 July 0.02 0.08 0.04 0.02 0.07 0.02 0.03 0.08 0.04 0.03 0.08 0.04 0.02 0.08 0.03 0.01 0.08 0.04 0.01 0.08 0.02 0.03 0.08 0.04 0.02 0.08 0.04 August 0.02 0.08 0.04 0.02 0.08 0.03 0.03 0.08 0.04 0.02 0.08 0.04 0.01 0.07 0.03 0.02 0.09 0.04 0.01 0.06 0.02 ------0.02 0.08 0.03 September 0.01 0.07 0.02 0.02 0.08 0.03 0.02 0.08 0.03 0.02 0.07 0.03 0.01 0.09 0.03 0.02 0.10 0.04 0.01 0.08 0.02 0.00 0.08 0.02 0.01 0.09 0.03 October 0.01 0.10 0.04 0.02 0.10 0.05 0.03 0.10 0.06 ------0.01 0.09 0.03 0.02 0.10 0.05 0.01 0.10 0.02 0.01 0.10 0.03 0.02 0.10 0.04 November 0.02 0.08 0.03 0.02 0.11 0.05 0.03 0.08 0.04 0.02 0.08 0.04 0.01 0.05 0.02 ------0.02 0.08 0.03 0.01 0.08 0.02 0.01 0.08 0.03 December 0.02 0.07 0.03 0.02 0.08 0.04 0.03 0.07 0.04 0.02 0.07 0.03 0.01 0.05 0.02 0.02 0.07 0.03 0.02 0.05 0.02 0.01 0.08 0.02 0.01 0.06 0.02

Annual 0.01 0.10 0.03 0.01 0.11 0.03 0.02 0.10 0.04 0.02 0.10 0.03 0.01 0.10 0.03 0.01 0.10 0.04 0.01 0.10 0.02 0.00 0.10 0.03 0.01 0.10 0.03 Min/Max/Avg

NOTES: ' -- ' indicates filter offline 3.7 E.L. Smith Filters 1 - 9 Turbidity (NTU) 2017

Filter 1 2 3 4 5 6 7 8 9

Month Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg

January 0.02 0.08 0.03 0.02 0.08 0.03 0.04 0.08 0.06 0.03 0.08 0.03 0.02 0.07 0.03 0.02 0.08 0.03 0.02 0.08 0.03 0.03 0.08 0.04 0.02 0.08 0.03 February 0.02 0.07 0.03 0.02 0.08 0.03 0.05 0.08 0.06 0.03 0.07 0.03 0.02 0.07 0.03 0.02 0.07 0.03 0.02 0.08 0.03 0.03 0.08 0.04 0.02 0.08 0.03 March 0.02 0.07 0.03 0.03 0.08 0.03 0.05 0.08 0.06 0.03 0.07 0.03 0.02 0.08 0.03 0.02 0.08 0.03 0.02 0.10 0.03 0.03 0.09 0.04 0.02 0.11 0.03 April 0.02 0.08 0.03 0.02 0.08 0.03 0.05 0.08 0.05 0.03 0.08 0.03 0.02 0.08 0.03 0.02 0.08 0.03 0.02 0.10 0.03 0.03 0.10 0.04 0.02 0.10 0.03 May 0.02 0.08 0.03 0.02 0.08 0.03 0.05 0.08 0.05 0.03 0.08 0.03 0.02 0.08 0.03 0.02 0.08 0.03 0.02 0.08 0.03 0.03 0.10 0.04 0.02 0.11 0.03 June 0.02 0.08 0.03 0.02 0.08 0.04 0.03 0.08 0.05 0.02 0.08 0.03 0.02 0.08 0.03 0.02 0.08 0.03 0.02 0.08 0.03 0.04 0.08 0.05 0.02 0.08 0.03 July 0.02 0.08 0.03 0.02 0.08 0.04 0.05 0.08 0.06 0.03 0.08 0.03 0.02 0.08 0.03 0.02 0.08 0.03 0.02 0.08 0.04 0.04 0.08 0.05 0.02 0.08 0.03 August 0.02 0.08 0.03 0.03 0.08 0.04 0.05 0.08 0.06 0.03 0.08 0.04 0.02 0.08 0.03 0.02 0.08 0.03 0.03 0.08 0.04 0.04 0.08 0.05 0.02 0.08 0.04 September 0.02 0.08 0.03 0.03 0.08 0.04 0.05 0.08 0.06 0.02 0.08 0.03 0.02 0.08 0.03 0.02 0.08 0.03 0.02 0.08 0.03 0.04 0.08 0.05 0.02 0.08 0.03 October 0.02 0.10 0.04 0.03 0.10 0.04 0.05 0.11 0.07 0.02 0.10 0.04 0.02 0.10 0.03 0.02 0.10 0.03 0.02 0.10 0.04 0.01 0.10 0.05 0.02 0.10 0.04 November 0.02 0.09 0.03 0.03 0.09 0.04 0.05 0.10 0.06 0.02 0.09 0.03 0.02 0.09 0.03 0.02 0.09 0.03 0.02 0.09 0.03 0.04 0.10 0.05 0.02 0.09 0.03 December 0.03 0.09 0.03 0.02 0.08 0.03 0.06 0.09 0.06 0.03 0.09 0.03 0.01 0.08 0.03 0.02 0.07 0.02 0.02 0.09 0.03 0.04 0.09 0.05 0.02 0.09 0.03

Annual 0.02 0.10 0.03 0.02 0.10 0.04 0.03 0.11 0.06 0.02 0.10 0.03 0.01 0.10 0.03 0.02 0.10 0.03 0.02 0.10 0.03 0.01 0.10 0.05 0.02 0.11 0.03 Min/Max/Avg

NOTES: ' -- ' indicates filter offline 3.8 E.L. Smith Filters 10 - 18 Turbidity (NTU) 2017

Filter 10 11 12 13 14 15 16 17 18

Month Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg

January 0.02 0.08 0.03 0.03 0.08 0.04 0.01 0.06 0.03 0.04 0.08 0.04 0.03 0.08 0.03 0.03 0.08 0.03 0.03 0.08 0.04 0.03 0.08 0.04 0.03 0.08 0.04 February 0.02 0.08 0.03 0.03 0.08 0.04 0.02 0.06 0.02 0.04 0.08 0.04 0.03 0.08 0.03 0.02 0.08 0.03 0.03 0.08 0.04 0.03 0.08 0.04 0.03 0.08 0.04 March 0.02 0.08 0.03 0.02 0.09 0.04 0.01 0.08 0.02 0.04 0.09 0.04 0.02 0.09 0.03 0.03 0.11 0.03 0.03 0.10 0.04 0.03 0.10 0.04 0.03 0.09 0.04 April 0.02 0.09 0.03 0.03 0.09 0.04 0.01 0.08 0.02 0.03 0.09 0.04 0.02 0.08 0.03 0.03 0.09 0.03 0.03 0.09 0.04 0.03 0.09 0.04 0.03 0.10 0.04 May 0.02 0.08 0.03 0.03 0.08 0.03 0.01 0.08 0.02 0.03 0.08 0.04 0.02 0.08 0.03 0.03 0.08 0.03 0.03 0.08 0.04 0.03 0.08 0.04 0.03 0.08 0.03 June 0.02 0.08 0.03 0.03 0.08 0.04 0.02 0.08 0.03 0.03 0.08 0.04 0.03 0.08 0.04 0.03 0.08 0.04 0.03 0.08 0.04 0.03 0.08 0.04 0.03 0.08 0.04 July 0.02 0.08 0.04 0.03 0.08 0.04 0.02 0.08 0.04 0.03 0.08 0.05 0.03 0.08 0.04 0.03 0.08 0.04 0.03 0.08 0.04 0.01 0.08 0.04 0.03 0.08 0.04 August 0.02 0.08 0.04 0.03 0.08 0.04 0.03 0.08 0.04 0.03 0.08 0.05 0.03 0.08 0.05 0.03 0.08 0.04 0.03 0.08 0.05 0.02 0.08 0.04 0.03 0.08 0.04 September 0.02 0.08 0.03 0.03 0.08 0.04 0.02 0.08 0.03 0.04 0.08 0.04 0.03 0.08 0.04 0.03 0.08 0.04 0.03 0.08 0.04 0.03 0.08 0.04 0.03 0.07 0.03 October 0.02 0.10 0.03 0.02 0.10 0.04 0.02 0.10 0.04 0.03 0.10 0.05 0.03 0.10 0.04 0.03 0.10 0.04 0.03 0.12 0.05 0.03 0.10 0.04 0.02 0.12 0.04 November ------0.03 0.09 0.04 0.02 0.10 0.04 0.03 0.09 0.05 0.03 0.09 0.04 0.03 0.09 0.04 0.03 0.09 0.04 0.03 0.09 0.04 0.03 0.09 0.03 December 0.03 0.08 0.03 0.03 0.09 0.04 0.03 0.09 0.04 0.04 0.09 0.05 0.03 0.09 0.04 0.03 0.09 0.04 0.03 0.09 0.04 0.03 0.08 0.04 0.02 0.07 0.03

Annual 0.02 0.10 0.03 0.02 0.10 0.04 0.01 0.10 0.03 0.03 0.10 0.04 0.02 0.10 0.04 0.02 0.11 0.04 0.03 0.12 0.04 0.01 0.10 0.04 0.02 0.12 0.04 Min/Max/Avg

NOTES: ' -- ' indicates filter offline 3.9 Combined Filter Effluent Water Quality 2017

Rossdale E.L. Smith

Month Particle Counts (no./mL,>2um) Turbidity (NTU) Particle Counts (no./mL,>2um) Turbidity (NTU)

Min Max Avg Min Max Avg Min Max Avg Min Max Avg January 1 23 6 0.03 0.08 0.05 1 19 6 0.03 0.05 0.04 February 1 21 5 0.02 0.08 0.05 2 16 7 0.03 0.06 0.03 March 1 28 6 0.01 0.07 0.03 2 18 6 0.03 0.05 0.03 April 2 27 8 0.03 0.10 0.04 2 24 7 0.03 0.05 0.03 May 1 16 3 0.03 0.05 0.04 1 15 5 0.01 0.06 0.03 June 1 16 2 0.03 0.05 0.04 1 15 4 0.03 0.05 0.04 July 1 19 8 0.04 0.06 0.05 3 19 9 0.03 0.05 0.04 August 1 22 8 0.03 0.08 0.05 1 21 12 0.03 0.05 0.04 September 1 26 7 0.03 0.09 0.05 1 21 10 0.02 0.05 0.04 October 1 26 12 0.03 0.11 0.06 1 20 9 0.03 0.06 0.04 November 1 22 5 0.03 0.09 0.05 1 13 6 0.01 0.06 0.04 December 1 21 3 0.03 0.14 0.05 1 16 4 0.03 0.06 0.04

Annual 1 28 6 0.01 0.14 0.05 1 24 7 0.01 0.06 0.04 Min/Max/Avg

NOTES: ' -- ' indicates plant offline 3.10 Rossdale UV Disinfection - Filters 1 - 3 2017

Filter 1 2 3 Transmittance (%) Dosage (mJ/cm²) Flow (MLD) Dosage (mJ/cm²) Flow (MLD) Dosage (mJ/cm²) Flow (MLD) Month Min Max Avg Min Max Total Min Max Avg Min Max Total Min Max Avg Min Max Total Min Max Avg January 33.4 59.4 39.3 10.2 28.8 584.5 32.6 57.0 39.4 10.4 28.8 570.6 33.1 56.9 39.8 10.4 28.4 559.6 89.7 95.1 93.7 February 33.3 59.8 35.5 12.5 30.1 493.2 33.9 56.3 35.7 10.7 29.2 491.7 32.4 55.8 36.1 13.0 30.6 494.5 91.0 96.9 93.7 March 32.9 54.4 35.8 10.0 31.3 414.2 34.0 50.5 36.4 12.4 30.2 329.7 33.7 55.6 38.1 13.0 31.5 483.1 92.2 97.3 94.7 April 34.2 57.3 36.0 18.4 29.1 262.9 34.0 49.1 35.5 11.7 29.2 519.0 33.5 51.0 35.7 11.8 28.2 488.4 88.7 95.9 92.0 May 33.1 57.4 35.4 10.0 34.2 587.5 33.7 54.9 35.6 10.1 36.1 589.2 33.4 57.7 36.3 12.1 35.3 553.5 88.6 93.5 91.9 June 33.2 58.0 35.5 7.8 33.8 398.8 33.8 52.6 35.6 10.4 33.9 514.4 33.2 55.2 35.6 10.3 34.7 440.6 89.7 94.1 92.4 July 32.9 62.7 36.6 8.6 40.5 597.3 32.7 55.8 36.6 8.7 41.1 640.4 32.6 62.2 36.4 11.4 39.2 610.7 91.6 95.6 94.0 August 33.2 67.6 37.3 9.9 38.6 615.4 33.8 64.4 37.1 9.4 38.4 638.7 32.8 67.1 38.3 10.0 38.8 621.9 93.6 96.5 95.4 September 34.1 55.2 36.2 13.5 38.5 271.9 34.2 48.2 35.5 15.9 39.1 303.9 33.9 58.4 36.5 11.9 35.4 299.8 92.9 97.2 95.3 October 32.8 56.3 36.0 11.7 31.3 503.5 33.5 56.6 36.0 10.0 32.6 514.6 33.1 56.6 37.5 11.0 31.6 434.7 91.1 95.4 93.8 November 33.1 55.7 35.9 10.2 34.3 538.5 33.8 59.1 35.5 10.6 33.5 508.2 33.9 57.2 37.3 11.9 33.8 458.7 92.0 96.3 94.0 December 33.8 52.3 35.8 11.3 32.0 519.7 33.5 57.5 35.7 10.0 32.9 517.4 33.6 56.1 37.4 10.3 30.8 511.1 93.7 96.0 95.3 Annual 5787 6138 5957 Total Annual Min/Max/ 32.8 67.6 36.3 7.8 40.5 32.6 64.4 36.3 8.7 41.1 32.4 67.1 37.2 10.0 39.2 88.6 97.3 93.8 Avg

NOTES: - Each filter has a UV reactor - Transmittance (%) is a grab sample of the filter effluent prior to the UV reactor of a random online filter ' -- ' indicates filter and UV reactor offline 3.11 Rossdale UV Disinfection - Filters 4 - 6 2017

Filter 4 5 6 Transmittance (%) Dosage (mJ/cm²) Flow (MLD) Dosage (mJ/cm²) Flow (MLD) Dosage (mJ/cm²) Flow (MLD) Month Min Max Avg Min Max Total Min Max Avg Min Max Total Min Max Avg Min Max Total Min Max Avg January 33.6 56.1 39.9 12.9 27.7 558.0 32.0 58.1 43.3 12.8 28.6 463.5 31.6 58.7 39.2 10.6 29.8 570.4 89.7 95.1 93.7 February 34.2 58.8 38.0 11.6 29.3 520.6 33.6 65.4 45.0 12.2 30.5 353.4 32.7 44.6 35.4 14.7 33.4 488.7 91.0 96.9 93.7 March 33.7 120.9 43.3 13.3 32.0 470.6 32.6 73.4 46.6 11.5 30.6 329.1 33.3 54.4 36.2 11.5 34.8 628.2 92.2 97.3 94.7 April 34.2 56.0 38.2 14.5 27.6 509.0 32.3 47.6 38.7 13.0 30.3 501.4 33.5 54.2 35.3 11.3 30.0 564.0 88.7 95.9 92.0 May 32.9 61.4 38.5 11.4 33.7 577.8 33.2 73.9 39.5 8.9 34.0 566.2 33.3 55.9 35.9 10.5 37.3 663.7 88.6 93.5 91.9 June 31.8 52.7 37.4 11.8 33.6 405.1 32.7 164.5 37.1 13.8 34.0 414.1 34.2 59.7 35.4 10.6 36.5 524.0 89.7 94.1 92.4 July 32.9 73.8 40.6 10.0 40.1 626.3 33.3 75.4 41.9 11.7 39.7 594.8 34.0 58.1 36.9 10.6 42.6 650.3 91.6 95.6 94.0 August 33.7 84.2 44.1 10.0 37.6 589.4 32.5 86.5 45.3 10.3 37.4 630.0 32.7 68.7 38.0 10.1 41.7 666.1 93.6 96.5 95.4 September 34.3 82.5 43.8 11.2 39.1 278.5 32.8 89.6 47.4 10.1 36.9 690.8 33.4 55.2 36.7 12.4 41.6 596.8 92.9 97.2 95.3 October ------0.0 32.2 76.9 48.8 10.1 34.3 469.6 32.9 73.5 37.7 10.2 36.5 334.8 91.1 95.4 93.8 November 34.4 54.0 35.7 11.2 32.7 545.7 33.2 65.7 42.6 12.1 31.3 493.8 ------0.0 92.0 96.3 94.0 December 34.9 65.4 37.3 11.8 33.5 508.8 34.5 66.2 46.8 12.0 31.8 516.6 34.8 50.6 35.8 12.2 36.6 450.7 93.7 96.0 95.3 Annual 5590 6023 6138 Total Annual Min/Max/ 31.8 120.9 39.6 10.0 40.1 32.0 164.5 43.6 8.9 39.7 31.6 73.5 36.6 10.1 42.6 88.6 97.3 93.8 Avg

NOTES: - Each filter has a UV reactor - Transmittance (%) is a grab sample of the filter effluent prior to the UV reactor of a random online filter ' -- ' indicates filter and UV reactor offline 3.12 Rossdale UV Disinfection - Filters 7 - 9 2017

Filter 7 8 9 Transmittance (%) Dosage (mJ/cm²) Flow (MLD) Dosage (mJ/cm²) Flow (MLD) Dosage (mJ/cm²) Flow (MLD) Month Min Max Avg Min Max Total Min Max Avg Min Max Total Min Max Avg Min Max Total Min Max Avg January 33.0 53.4 38.8 12.0 31.5 587.9 32.6 57.4 39.5 11.2 32.0 584.1 ------0.0 89.7 95.1 93.7 February 32.8 59.1 36.0 14.3 29.5 233.9 33.0 61.8 36.3 10.0 33.7 511.2 ------0.0 91.0 96.9 93.7 March 33.7 55.0 36.0 10.0 34.3 592.2 32.1 54.4 36.6 13.3 34.2 614.1 ------0.0 92.2 97.3 94.7 April 33.7 59.2 35.3 9.1 31.8 615.5 33.2 56.2 35.3 15.2 33.1 586.2 ------0.0 88.7 95.9 92.0 May 32.7 58.7 36.3 10.1 38.7 544.8 32.6 60.8 36.3 10.3 37.9 651.8 32.6 50.9 35.9 11.2 39.4 339.5 88.6 93.5 91.9 June 33.7 57.0 35.4 11.2 37.7 596.1 31.8 55.2 35.6 12.2 37.0 530.9 33.1 58.6 35.3 11.2 38.7 473.5 89.7 94.1 92.4 July 33.6 59.5 37.2 10.2 45.7 734.4 32.4 54.0 35.7 10.8 37.4 65.8 33.4 55.5 35.6 10.1 45.7 665.8 91.6 95.6 94.0 August 33.9 72.3 38.0 9.7 42.2 635.8 ------0.0 33.5 53.3 35.7 10.4 43.1 733.4 93.6 96.5 95.4 September 31.8 59.7 36.2 10.5 41.0 753.1 34.7 97.7 37.5 11.0 40.8 421.7 32.8 52.1 35.4 9.6 42.0 718.5 92.9 97.2 95.3 October 33.5 59.0 36.1 11.4 37.0 605.1 34.5 72.3 37.0 10.5 37.9 597.4 32.1 54.6 35.5 10.2 33.9 527.1 91.1 95.4 93.8 November 33.7 55.4 35.4 11.2 37.5 609.5 34.6 58.3 35.8 11.1 38.4 645.0 31.6 49.0 35.2 10.3 31.9 518.3 92.0 96.3 94.0 December 34.1 43.9 35.2 16.2 34.2 92.8 34.2 57.8 36.0 14.8 39.4 477.2 32.7 57.8 35.8 10.3 31.8 628.8 93.7 96.0 95.3 Annual 6601 5685 4605 Total Annual Min/Max/ 31.8 72.3 36.4 9.1 45.7 31.8 97.7 36.6 10.0 40.8 31.6 58.6 35.6 9.6 45.7 88.6 97.3 93.8 Avg

NOTES: - Each filter has a UV reactor - Transmittance (%) is a grab sample of the filter effluent prior to the UV reactor of a random online filter ' -- ' indicates filter and UV reactor offline 3.13 E.L. Smith UV Disinfection - UV Reactors 1 - 4 2017

Filter 1 2 3 4 Transmittance (%) Dosage (mJ/cm²) Flow (MLD) Dosage (mJ/cm²) Flow (MLD) Dosage (mJ/cm²) Flow (MLD) Dosage (mJ/cm²) Flow (MLD) Month Min Max Avg Min Max Total Min Max Avg Min Max Total Min Max Avg Min Max Total Min Max Avg Min Max Total Min Max Avg January 47.6 117.5 67.7 29.6 91.6 2,347.0 45.0 165.6 73.2 23.7 83.0 677.0 47.9 111.8 65.5 29.4 89.1 2,366.7 42.7 120.6 46.3 35.5 80.3 1,931.5 92.3 95.1 93.7 February 47.6 122.9 69.3 39.0 100.0 1,937.1 48.5 123.6 70.1 40.0 80.2 1,130.2 47.6 111.1 68.7 41.8 106.5 1,990.6 39.9 51.1 46.1 37.5 86.9 1,696.6 91.6 97.6 94.2 March 45.1 149.2 72.3 41.2 95.3 2,115.1 54.0 137.0 74.9 35.0 93.4 552.5 48.7 166.0 65.5 36.7 104.8 2,376.5 40.3 135.6 46.4 34.5 95.3 2,033.6 94.1 97.4 95.4 April 49.4 106.2 69.0 32.2 98.4 1,810.8 48.0 126.4 62.5 29.6 93.9 1,846.9 46.9 99.6 64.0 44.7 99.2 1,557.3 39.6 97.6 46.3 29.0 92.1 1,819.3 90.7 95.5 92.9 May 48.1 87.5 70.9 48.4 88.6 2,147.9 49.8 301.2 66.8 47.3 87.8 1,996.2 49.3 93.6 67.6 50.1 103.0 2,281.2 35.6 94.9 46.7 46.0 78.9 1,597.3 89.0 94.0 91.7 June 48.1 102.6 75.2 46.8 88.7 2,116.6 56.1 92.4 71.6 42.9 83.0 1,953.4 51.0 92.4 70.9 47.6 93.3 2,241.7 41.6 87.9 46.3 42.4 78.8 1,891.1 89.7 93.8 91.9 July 49.1 101.8 69.9 29.0 123.9 2,361.8 51.1 109.0 68.2 26.6 117.6 2,198.0 42.7 122.5 66.2 25.4 92.1 2,129.8 41.2 92.2 46.7 25.9 111.1 2,136.7 91.9 95.8 94.1 August 59.1 106.9 72.1 39.0 109.0 2,178.9 49.1 131.9 65.3 35.6 103.8 2,027.1 51.1 102.0 65.4 32.9 138.7 1,999.0 36.5 124.6 46.2 33.3 95.6 1,716.5 92.4 96.6 95.2 September 48.4 122.9 75.4 46.2 97.1 2,225.4 49.3 110.8 76.7 44.3 94.2 2,076.1 49.3 105.3 71.6 50.7 122.6 2,464.8 37.4 110.6 45.6 31.5 84.9 1,427.6 93.9 97.3 96.0 October 41.8 101.6 57.9 26.5 100.4 2,028.5 49.4 120.6 65.4 41.1 123.1 2,190.0 45.2 112.7 64.1 41.0 142.1 2,422.4 38.8 104.4 47.9 47.5 131.8 865.3 92.9 97.1 94.8 November 35.8 119.6 57.4 22.3 76.5 1,428.2 39.1 123.9 63.7 31.4 123.8 2,021.7 35.4 114.5 63.7 31.0 109.9 2,141.8 35.4 108.6 47.3 40.9 83.6 1,555.4 91.5 97.6 94.4 December 46.4 115.3 55.0 39.1 96.4 1,722.9 46.1 117.2 68.3 20.0 98.7 1,236.1 42.3 121.4 60.5 29.8 101.1 2,474.0 44.5 123.3 51.3 37.2 84.5 1,591.0 94.0 95.9 95.0

20,262 Annual 24,420 19,905 26,446 Total

Annual Min/Max/ 35.8 149.2 67.6 22.3 123.9 39.1 301.2 68.2 20.0 123.8 35.4 166.0 66.2 25.4 142.1 35.4 135.6 46.9 25.9 131.8 89.0 97.6 94.1 Avg

NOTES: ' -- ' indicates UV reactor offline - Transmittance (%) is a grab sample of the combined filter effluent prior to the UV reactor 3.14 Log Removal 2017

Rossdale E.L. Smith

Log Removal Log Removal

Month Giardia Virus Cryptosporidium Giardia Virus Cryptosporidium

Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg

January 7.4 8.5 7.9 12 15 13 6.0 6.5 6.5 6.6 7.2 6.8 6.0 10 8.3 6.5 7.0 6.6 February 7.2 8.6 7.8 11 16 14 6.5 7.0 6.7 6.6 7.2 6.9 5.6 10 8.0 6.5 7.0 6.7 March 7.1 9.1 7.9 11 17 14 6.5 7.0 6.8 7.1 7.3 7.2 5.8 11 7.7 7.0 7.0 7.0 April 8.2 9.5 8.7 13 18 14 6.5 7.0 7.0 7.1 7.3 7.2 6.1 13 8.9 7.0 7.0 7.0 May 8.8 11.8 10.0 18 28 21 7.0 7.0 7.0 7.2 7.5 7.4 11 23 16 7.0 7.0 7.0 June 9.1 11.2 9.9 23 33 27 7.0 7.0 7.0 7.3 7.7 7.5 15 28 20 7.0 7.0 7.0 July 8.0 11.7 10.5 22 39 29 7.0 7.0 7.0 7.4 7.9 7.5 16 34 23 7.0 7.0 7.0 August 9.4 11.8 10.5 24 40 29 7.0 7.0 7.0 7.4 7.7 7.5 16 30 22 7.0 7.0 7.0 September 7.0 10.8 9.2 14 36 24 6.0 7.0 6.9 7.2 7.6 7.4 9.7 24 16 7.0 7.0 7.0 October 6.5 9.1 7.6 13 25 17 6.5 7.0 6.6 6.2 7.4 7.0 7.5 16 11 6.0 7.0 6.8 November 7.0 7.7 7.3 9.5 17 12 6.5 6.5 6.5 6.6 7.2 6.8 5.0 9.5 7.1 6.5 7.0 6.7 December 7.1 8.4 7.5 11 14 12 6.5 6.5 6.5 6.5 6.7 6.7 5.1 9.7 7.3 6.5 6.5 6.5

Annual 6.5 11.8 8.8 9.5 40 19 6.0 7.0 6.8 6.2 7.9 7.1 5.0 34 13 6.0 7.0 6.9 Min/Max/Avg

NOTES: ' -- ' indicates plant offline 4.1 Liquid Alum Chemical Consumption 2017

Dosage (mg/L) Consumption (kg)

Month Rossdale Rossdale E.L. Smith E.L. Smith Plant 1 Plant 2 Plant 1 Plant 2 Plant Total January 6.12 6.48 9.45 29,201 31,349 60,550 159,534 February 22.3 31.9 26.2 97,172 109,364 206,536 382,029 March 53.4 39.3 47.8 97,309 233,526 330,835 734,873 April 133 133 143 482,356 709,182 1,191,537 2,266,447 May 107 107 116 455,186 669,359 1,124,544 1,969,029 June 96.6 104 114 72,795 876,036 948,831 2,036,941 July 28.3 30.2 40.9 106,871 237,118 343,989 817,188 August 25.9 25.9 29.4 127,855 157,827 285,682 507,239 September 25.0 18.3 31.8 58,625 142,836 201,461 547,241 October -- 9.09 20.2 -- 76,719 76,719 341,548 November 6.00 6.00 11.7 16,092 40,346 56,438 187,403 December 6.00 6.00 4.93 19,786 35,066 54,852 77,247

Annual Total 1,563,247 3,318,728 4,881,975 10,026,720

Annual Avg 43.9 43.2 49.6

NOTES : ' -- ' indicates plant offline - Liquid alum consumption (kg) at 100% by weight (solution delivered to sites at a concentration of 48.5%) 4.2 Primary Polymer (Magnafloc LT 27AG) Chemical Consumption 2017

Dosage (mg/L) Consumption (kg)

Month Rossdale Rossdale E.L. Smith E.L. Smith Plant 1 Plant 2 Plant 1 Plant 2 Plant Total January -- -- 0.19 0 0 0 377.62 February 0.24 0.24 0.26 175 244 419 729.34 March 0.26 0.23 0.19 157 488 645 1,487.43 April 0.35 0.35 0.31 617 900 1,517 2,351.92 May 0.35 0.35 0.28 732 1,068 1,800 2,248.95 June 0.34 0.38 0.24 119 1,564 1,682 2,083.50 July 0.31 0.30 0.16 559 1,084 1,644 1,562.79 August 0.28 0.28 0.18 682 840 1,522 1,506.22 September 0.28 0.26 0.22 324 650 974 1,826.31 October -- 0.20 0.24 0 195 196 1,179.76 November -- -- 0.18 0 0 0 483.94 December ------

Annual Total 3,366 7,034 10,400 15,838

Annual Avg 0.31 0.30 0.22

NOTES: ' -- ' indicates plant offline - Primary polymer consumption (kg) at 100% by weight mixed at the sites to required solution 4.3 Carbon Chemical Consumption 2017

Dosage (mg/L) Consumption (kg)

Month Rossdale Rossdale E.L. Smith E.L. Smith Plant 1 Plant 2 Plant 1 Plant 2 Plant Total January ------February 40.0 39.8 40.2 26,463 26,403 52,866 79,670 March 55.2 56.3 49.6 36,275 51,344 87,619 145,353 April 27.7 27.6 9.92 14,460 18,221 32,681 28,221 May ------June ------July ------August ------September ------October ------November ------December ------

Annual Total 77,197 95,969 173,166 253,244

Annual Avg 43.6 43.9 34.4

NOTES: ' -- ' indicates carbon not being used 4.4 Sodium Hypochlorite Chemical Consumption 2017

Rossdale E.L. Smith Month Dosage (mg/L) Consumption (kg) Dosage Consumption Plant 1 Plant 2 Plant 1 Plant 2 Plant Total (mg/L) (kg)

January 3.25 3.32 936,311 976,269 1,912,581 3.34 3,405,328 February 3.47 3.29 1,012,020 621,143 1,633,163 3.56 3,392,536 March 4.13 3.68 426,688 1,438,578 1,865,266 3.38 3,365,700 April 3.87 3.79 876,922 1,233,262 2,110,183 3.64 3,686,722 May 3.30 3.44 869,417 1,323,088 2,192,506 3.28 3,528,708 June 3.44 3.55 138,889 1,819,078 1,957,967 3.15 3,632,345 July 2.97 3.30 693,771 1,530,000 2,223,771 3.16 3,962,581 August 3.02 3.17 907,534 1,170,854 2,078,388 3.02 3,311,149 September 2.77 3.12 394,958 1,328,271 1,723,229 2.72 3,012,210 October -- 2.86 -- 1,498,316 1,498,316 2.78 3,016,155 November 2.69 2.74 450,764 1,119,938 1,570,702 2.76 2,694,018 December 3.07 2.98 613,412 1,056,060 1,669,471 2.74 2,736,557

Annual Total 7,320,687 15,114,857 22,435,544 39,744,009

Annual Avg 3.25 3.27 3.13

NOTES: ' -- ' indicates plant offline - Sodium hypochlorite consumption (kg) at 0.8% by weight (sodium hypochlorite generated onsite at a concentration of 0.8%) - Plant 1 was converted to sodium hypochlorite from chlorine on Feb 2, 2015. - Plant 2 was converted to sodium hypochlorite from chlorine on Feb 10, 2015. - Plant Total Consumption is the combined addition of Plant 1, Plant 2 and Post Filter Trim. 4.5 Filter Polymer (Magnafloc LT 7981) Chemical Consumption 2017

Dosage (mg/L) Consumption (kg)

Month Rossdale E.L. Smith Rossdale E.L. Smith January 0.70 0.65 3,122 4,916 February 0.48 0.57 1,654 4,168 March 0.41 0.11 1,572 807 April 0.64 0.16 2,600 1,263 May 0.50 0.14 2,519 1,087 June 0.29 0.06 1,236 568 July 0.20 0.13 1,047 1,255 August 0.30 0.19 1,519 1,569 September 0.37 0.25 1,513 2,035 October 0.50 0.34 1,976 2,819 November 0.35 0.26 1,499 1,866 December 0.35 0.27 1,481 2,078

Annual Total 21,738 24,430

Annual Avg 0.42 0.26

NOTES: ' -- ' indicates plant offline - Filter polymer consumption (kg) at 100% by weight mixed at the sites to required solution 4.6 Aqua Ammonia Chemical Consumption 2017

Dosage (mg/L) Consumption (kg)

Month Rossdale E.L. Smith Rossdale E.L. Smith January 0.62 0.61 14,428 22,678 February 0.61 0.61 11,487 21,214 March 0.60 0.61 12,189 22,730 April 0.59 0.60 12,579 22,164 May 0.57 0.58 15,060 22,977 June 0.57 0.58 12,955 25,189 July 0.57 0.59 15,558 27,410 August 0.57 0.59 15,377 23,906 September 0.57 0.59 12,947 24,457 October 0.57 0.59 11,939 23,287 November 0.57 0.59 12,917 20,943 December 0.56 0.57 12,446 20,587

Annual Total 159,881 277,542

Annual Avg 0.58 0.59

NOTES: ' -- ' indicates plant offline - Aqua ammonia consumption (kg) at 100% by weight (solution delivered to sites at a concentration of 19.0%) 4.7 Caustic Soda Chemical Consumption 2017

Dosage (mg/L) Consumption (kg)

Month Rossdale E.L. Smith Rossdale E.L. Smith January 0.54 3.15 448 9,732 February 9.48 13.0 31,427 64,894 March 9.90 12.2 51,845 165,065 April 27.5 39.4 221,854 550,008 May 18.8 27.7 186,394 417,579 June 16.3 24.8 138,460 400,357 July 1.41 6.16 14,801 112,552 August 0.80 3.52 8,161 51,682 September 1.06 3.51 5,212 50,062 October 1.67 2.95 2,060 27,884 November -- 3.48 -- 17,190 December ------

Annual Total 660,661 1,867,005

Annual Avg 11.0 14.7

NOTES: ' -- ' indicates plant offline - Caustic soda consumption (kg) at 100% by weight (solution delivered to sites at a concentration of 50.0%) 4.8 Fluoride Chemical Consumption 2017

Dosage (mg/L) Consumption (kg)

Month Rossdale EL Smith Rossdale EL Smith January 0.70 0.70 14,194 18,678 February 0.71 0.69 11,623 17,383 March 0.70 0.71 12,366 19,025 April 0.74 0.79 13,630 20,918 May 0.82 0.83 18,732 26,684 June 0.86 0.84 17,083 31,617 July 0.83 0.79 19,744 31,855 August 0.82 0.76 19,351 26,733 September 0.85 0.75 16,836 27,115 October 0.80 0.77 14,526 26,469 November 0.77 0.77 15,149 24,073 December 0.78 0.78 15,137 24,734

Annual Total 188,371 295,283

Annual Avg 0.78 0.77

NOTES: ' -- ' indicates plant offline - Fluoride consumption (kg) at 100% by weight (solution delivered to sites at a concentration of 21.8%) 4.9 Sodium Bisulfite Chemical Consumption 2017

Rossdale E.L. Smith Month Dosage Consumption De-chlorinated Dosage Consumption De-chlorinated (mg/L) (kg) Waste Stream (mg/L) (kg) Waste Stream to Outfall (ML) to Outfall (ML) January 18.1 26,153 555 14.2 43,606 1,174 February 18.8 19,384 409 14.2 39,733 1,071 March 19.6 20,574 435 16.0 38,025 911 April 11.8 15,781 488 16.1 42,246 1,010 May 21.4 18,166 337 19.2 46,131 988 June 21.5 19,091 470 19.1 43,829 899 July 17.5 23,609 507 16.9 50,966 1,160 August 18.5 24,222 490 17.9 47,455 1,058 September 26.5 24,114 388 19.2 45,374 969 October 25.3 28,602 427 16.8 52,002 1,219 November 19.3 24,988 518 15.6 45,601 1,138 December 20.8 22,309 447 16.1 41,880 1,137

Annual Total 3,087 5,471 536,850 12,735 Annual 19.9 Avg 16.8

NOTES: ' -- ' indicates Plant Offline - Sodium bisulfite consumption (kg) at 38% by weight (solution delivered to sites at a concentration of 38.0%) 5.1 Waste Stream Volumes (ML) 2017

Rossdale E.L. Smith

Month Clarifier Clarifier Backwash Filter to Bypass Plant Total Clarifier Clarifier Backwash Filter to Bypass LLP Flush HLP Plant Total De-chlorinated Blowdown Washdown Water Waste Blowdown Washdown Water Waste Cooling Waste Flow to Outfall January 144 -- 255 141 25 565 308 -- 470 362 24 0.6 23 1,187 1,174 February 186 45 131 77 18 456 289 -- 369 296 110 0.3 24 1,088 1,071 March 169 -- 129 92 49 440 321 -- 312 269 15 0.6 27 946 911 April 317 -- 78 68 46 509 261 -- 335 336 43 0.9 24 1,000 1,010 May 194 -- 100 53 8.3 356 296 16 353 245 77 0.7 29 1,016 988 June 235 -- 86 48 30 398 317 16 309 224 22 0.8 34 922 899 July 274 -- 123 110 8.0 514 348 -- 411 332 60 0.7 38 1,190 1,160 August 250 -- 144 103 17 514 309 -- 370 334 38 0.6 32 1,083 1,058 September 181 32 102 99 12 427 295 13 394 233 34 0.6 33 1,003 969 October 100 -- 126 140 33 400 311 -- 445 367 81 0.5 28 1,233 1,219 November 195 -- 124 112 30 461 352 -- 422 248 121 0.3 25 1,168 1,138 December 169 -- 146 75 17 406 366 -- 341 150 37 0.2 21 916 1,137 Annual 2,413 77 1,544 1,117 295 5,446 3,775 44 4,530 3,395 662 7 340 12,753 12,735 Total

NOTES: - Clarifier washdown volume(s) estimated for clarifier cleaning - LLP flush, HLP cooling and chlorinated waste flow to outfall are not applicable to the Rossdale WTP - De-chlorinated waste flow to outfall is the estimated chlorinated waste flow to outfall for dechlorination 5.2 Rossdale Clarifier Blowdown, Clarifier Washdown and Backwash Water Waste Stream Data 2017

Clarifier Blowdown Clarifier Washdown Backwash Water

Month TSS Aluminum TSS Aluminum TSS Aluminum (kg) (kg) (kg) (kg) (kg) (kg) January 36,853 2,661 0 0 20,601 7,131 February 139,133 8,929 350 80 13,911 4,815 March 206,216 14,304 0 0 11,019 3,814 April 1,578,594 51,763 0 0 5,873 2,033 May 1,129,649 49,118 0 0 4,862 1,683 June 1,669,394 41,648 0 0 6,724 2,328 July 118,707 15,064 0 0 3,455 1,196 August 47,128 12,461 0 0 2,707 937 September 42,766 8,755 225 14 5,644 1,954 October 30,741 3,470 0 0 18,749 6,490 November 39,048 2,463 0 0 26,383 9,133 December 12,580 2,395 0 0 15,355 5,315 Annual Total 5,050,809 213,032 575 94 135,284 46,829

NOTES: '--' indicates that clarifier washdown did not occur - Clarifier washdown waste stream solids, TSS and aluminum are calculated values 5.3 Rossdale Waste Stream Data 2017

De-Chlorinated Waste Flow to Waste De-Chlorinated Waste Flow to Waste Stream 3 Stream 7

Month Total Chlorine (mg/L) Sulfite (mg/L) Total Chlorine (mg/L) Sulfite (mg/L)

Min Max Avg Min Max Avg Min Max Avg Min Max Avg

January 0.00 0.00 0.00 0.12 20.0 7.14 0.00 0.00 0.00 1.28 20.0 5.97 February 0.00 0.00 0.00 0.25 20.0 6.66 0.00 0.00 0.00 0.29 20.0 6.48 March 0.00 0.00 0.00 0.11 20.0 5.99 0.00 0.00 0.00 0.15 20.0 5.01 April 0.00 0.00 0.00 0.24 20.0 6.16 0.00 0.00 0.00 0.78 20.0 6.76 May 0.00 0.00 0.00 0.35 20.0 6.29 0.00 0.00 0.00 0.18 20.0 7.83 June 0.00 0.00 0.00 0.55 20.0 5.31 0.00 0.00 0.00 1.03 20.0 7.49 July 0.00 0.00 0.00 0.36 20.0 5.17 0.00 0.00 0.00 0.10 20.0 5.65 August 0.00 0.00 0.00 0.17 20.0 5.38 0.00 0.00 0.00 0.23 20.0 6.46 September 0.00 0.00 0.00 0.38 20.0 3.06 0.00 0.00 0.00 0.41 20.0 6.01 October 0.00 0.00 0.00 0.10 20.0 5.64 0.00 0.00 0.00 0.31 20.0 5.97 November 0.00 0.00 0.00 0.26 20.0 7.74 0.00 0.00 0.00 0.50 20.0 4.68 December 0.00 0.00 0.00 0.36 20.0 7.39 0.00 0.00 0.00 0.31 20.0 3.42 Annual Min/Max/Avg 0.00 0.00 0.00 0.10 20.0 5.99 0.00 0.00 0.00 0.10 20.0 5.97 5.4 E.L. Smith Clarifier Blowdown, Clarifier Washdown and Backwash Water Waste Stream Data 2017

Clarifier Blowdown Clarifier Washdown Backwash Water

Month TSS Aluminum TSS Aluminum TSS Aluminum (kg) (kg) (kg) (kg) (kg) (kg)

January 75,575 6,963 0 0 33,246 11,508 February 207,210 16,675 0 0 31,179 10,793 March 350,084 32,064 0 0 14,650 5,071 April 2,271,607 98,929 0 0 22,474 7,779 May 1,865,462 85,140 0 0 19,235 6,658 June 2,952,365 88,310 0 0 34,455 11,927 July 304,800 34,662 0 0 24,030 8,318 August 133,218 21,147 0 0 4,423 1,531 September 132,737 22,830 0 0 4,463 1,545 October 101,758 14,427 0 0 19,125 6,620 November 88,314 8,180 0 0 29,153 10,091 December 37,699 3,371 0 0 17,563 6,080

Annual Total 8,520,829 432,699 0 0 253,996 87,922

NOTES: '--' indicates that clarifier wash did not occur - Clarifier washdown waste stream solids, TSS and aluminum are calculated values 5.5 E.L. Smith Waste Stream Data 2017

De-chlorinated Waste Flow to Outfall

Month Sulphite (mg/L) Total Chlorine (mg/L) pH

Min Max Avg Min Max Avg Min Max Avg January 2.50 2.50 2.50 0.00 0.00 0.00 7.46 8.27 7.86 February 1.13 2.50 2.50 0.00 0.00 0.00 7.17 8.12 7.84 March 2.50 2.50 2.50 0.00 0.00 0.00 6.81 7.94 7.66 April 2.50 2.50 2.50 0.00 0.00 0.00 6.53 7.48 7.01 May 2.48 2.50 2.50 0.00 0.00 0.00 6.59 7.71 7.18 June 2.49 2.50 2.50 0.00 0.00 0.00 6.50 8.39 7.30 July 2.50 2.50 2.50 0.00 0.00 0.00 7.52 8.10 7.81 August 0.63 7.60 2.57 0.00 0.00 0.00 7.60 8.22 7.89 September 2.50 2.50 2.50 0.00 0.00 0.00 6.58 8.09 7.54 October 2.50 2.50 2.50 0.00 0.00 0.00 6.65 7.97 7.65 November 0.83 4.39 2.50 0.00 0.00 0.00 6.87 8.10 7.77 December 2.50 2.50 2.50 0.00 0.00 0.00 6.76 8.16 7.89

Annual 0.63 7.60 2.51 0.00 0.00 0.00 6.5 8.4 7.6 Min/Max/Avg 6.0 Reservoir Chlorine Residual (mg/L) - Part 1 2017

Reservoir Papaschase 1 Ormsby Clareview Discharge Millwoods Discharge Kaskitayo

Day Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg

Jan 1.29 1.94 1.57 1.65 2.17 2.02 1.42 2.04 1.77 1.36 2.19 2.06 1.56 2.26 2.11

Feb 1.18 1.95 1.43 1.70 2.12 1.98 1.58 2.05 1.81 1.31 2.16 2.05 1.13 2.20 2.10

Mar 1.31 1.93 1.46 1.68 2.08 1.94 1.32 2.10 1.75 1.27 2.12 1.99 1.03 2.19 2.05

Apr ------1.20 2.09 1.89 1.29 2.07 1.61 1.23 2.23 1.91 1.55 2.15 1.99

May 1.24 1.76 1.44 1.46 1.95 1.77 1.07 1.84 1.57 1.22 2.07 1.88 1.38 2.04 1.90

Jun 1.02 1.89 1.34 1.00 2.15 1.65 1.36 1.77 1.55 1.17 2.06 1.85 1.33 2.02 1.83

Jul 1.00 1.70 1.27 1.43 2.00 1.66 1.00 1.68 1.46 1.10 2.01 1.80 1.58 1.91 1.80

Aug 1.00 1.78 1.26 1.43 2.14 1.65 1.02 1.65 1.45 1.13 2.04 1.80 1.50 1.99 1.79

Sep 1.07 1.83 1.37 1.18 2.06 1.71 1.00 1.73 1.43 1.17 2.02 1.84 1.48 1.98 1.82

Oct 1.18 1.78 1.41 1.44 2.11 1.76 1.10 1.74 1.57 1.16 2.00 1.88 1.31 1.88 1.70

Nov 1.33 1.84 1.59 1.48 2.04 1.79 1.39 1.81 1.68 1.23 1.97 1.89 ------

Dec 1.41 1.92 1.65 1.66 2.21 1.80 1.53 1.80 1.72 1.23 1.98 1.91 ------

Monthly Min/Max/ 1.00 1.95 1.45 1.00 2.21 1.79 1.00 2.10 1.60 1.10 2.23 1.91 1.03 2.26 1.92 Avg

NOTES: '--' Indication Analyzer Offline 6.1 Reservoir Chlorine Residual (mg/L) - Part 2 2017

Reservoir Rosslyn 1 Londonderry N. Jasper Place Rosslyn 2 Thorncliffe

Day Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg

Jan 1.41 1.59 1.49 1.61 2.16 1.95 1.43 2.27 1.66 1.56 2.37 1.99 1.41 2.18 1.71 Feb 1.36 1.93 1.60 1.65 2.09 1.92 1.28 2.31 1.71 1.33 2.27 1.97 1.43 2.16 1.69 Mar 1.00 2.02 1.41 1.21 2.59 1.93 1.47 2.24 1.76 1.58 3.00 1.99 1.54 2.23 1.72 Apr 1.07 1.58 1.38 1.17 2.18 1.80 1.33 2.17 1.69 1.37 2.23 1.84 1.43 2.22 1.71 May 1.25 1.60 1.48 1.00 2.20 1.70 1.40 2.09 1.59 1.10 2.03 1.60 1.31 2.18 1.55 Jun 1.01 1.41 1.31 1.14 2.07 1.56 1.14 2.06 1.40 1.00 2.19 1.55 1.23 2.22 1.43 Jul 1.00 1.44 1.13 1.01 2.11 1.51 1.07 1.92 1.26 1.01 2.27 1.43 1.05 2.11 1.34 Aug 1.01 1.37 1.14 1.01 2.39 1.44 1.07 2.06 1.35 1.11 1.96 1.51 1.11 2.09 1.33 Sep 1.14 1.54 1.29 1.22 1.78 1.54 1.17 2.07 1.50 1.08 2.00 1.48 1.24 2.08 1.43 Oct 1.02 1.62 1.41 1.25 1.80 1.57 1.14 2.03 1.46 1.17 1.91 1.52 1.12 2.05 1.52 Nov 1.37 1.66 1.56 1.11 1.98 1.70 1.36 2.03 1.67 1.35 2.00 1.66 1.12 2.20 1.68 Dec 1.46 1.66 1.60 1.38 1.79 1.70 1.33 1.98 1.69 1.43 1.95 1.70 1.55 2.02 1.70 Monthly Min/Max/ 1.00 2.02 1.39 1.00 2.59 1.69 1.07 2.31 1.57 1.00 3.00 1.69 1.05 2.23 1.56 Avg

NOTES: '--' Indication Analyzer Offline