EDMONTON WATERWORKS

ANNUAL REPORT TO ALBERTA ENVIRONMENT AND WATER Approval Number 638-03-00

2019

2019 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 Notifications ...... 7 1.5 Alberta Environmental Operator Certifications ...... 11 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 Sodium Hypochlorite Chemical Consumptin ...... 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 ...... 64 7.7 Treated Water Entering the Distribution System ...... 67 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...... 83 7.11 Londonderry, Millwoods, and North Jasper Place Reservoir ...... 86 7.12 Ormsby, Papaschase 1 and Papaschase 2 Reservoir ...... 89 7.13 Rosslyn 1, Rosslyn 2 and Thorncliff Reservoir ...... 92 7.14 Disinfection Byproducts ...... 95 7.15 Raw River Water ...... 96 7.16 Statistics on Water Quality Complaint Samples ...... 104 7.17 Lead Management Program ...... 105 7.18 Lead Service Line Program – by Appointment ...... 107 7.19 Lead Service Line Program – by Home Sample ...... 117 7.20 Lead Random Day Time Program ...... 119 7.21 Reportable Detection Limits ...... 126 7.22 Explanation of Notations Used ...... 130

1.1 Overview

Through 2019, EPCOR Water Services Inc. (EWSI) continued to satisfy all water demand requirements while meeting our strict water quality criteria. Total demand in 2019 was lower than 2018 and 2017. 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 March 18th as increased temperatures resulted in the upstream creeks starting to flow and spring runoff conditions. Some odours were detected and carbon was turned on for 21 days. Although colour peaked at 93.4 TCU, spring runoff did not bring any significant taste and odour concerns and carbon was turned off on April 8th. On July 25th, due to significant rainfall/mountain runoff events, turbidity peaked at 3,900 NTU and colour peaked at 200 TCU on July 26th. Carbon was turned on for 6 days to treat this runoff and turned off on July 28th. There were no other significant rainfall events affecting water quality the rest of the year.

Edmonton WTPs continued to focus on optimizing chemical dosing and minimizing release of water treatment plant solid residuals to the NSR. Zeta Potential is being monitored at the EL Smith WTP during Direct Filtration to help filter polymer dose optimization and to increase plant performance during DF operation. If this proves to work well it will be implemented at Rossdale in the future.

Fall raw water quality was very poor and river colour remained high (>6TCU) until the end of the year. For this reason, Rossdale was unable to convert to DF mode of operation until December 18th and E.L. Smith WTP was unable to convert to DF mode of operation in the fall and winter months in 2019.

Overall, the WTPs were able to reduce total solids discharged to the NSR by 58.5% during the months of January, February, March and December 2019 compared to baseline conventional operation. In-stream sampling and monitoring of WTPs clarifier waste stream discharges to NSR continued in 2019 to further understand the impacts of residuals discharge on the river environment.

There was one AEP approval contravention at the WTPs in 2019, as detailed in Section 1.4 Summary of Violations and Notifications. The WTPs continue to improve the integrated safety and environmental management system in accordance with the ISO 14001:2015 and 45001:2018 standard.

EWSI continued to upgrade the water treatment plants and the reservoir assets. Total expenditures in 2019 were approximately $33.6 M. Some of the major projects are as follows:

 E.L. Smith Solar Farm – design, public consultation and the regulatory approvals process continued for this project with the intent of having a 12MW solar farm and battery energy storage system installed adjacent to the E.L. Smith WTP with a revised in-service date of Spring 2022.  E.L. Smith – The Clarifier and Filter Buildings HVAC systems were replaced and upgraded, design was completed to begin structural rehabilitation of Stage 1 filters with construction planned in 2020, the Fluoride Room Upgrade project construction began with completion expected in April 2020 and the construction of High Lift Pumphouse surge protection continued.  Rossdale - Filter underdrains and the air scour systems were upgraded on the final 3 filters, structural rehabilitation of Stilling Basin 1 and Clarifier 1-1 got underway with completion planned in Q1 of 2020 and construction for the SBS Room Upgrade project began with completion scheduled for Q2 2020.  Reservoirs – Exterior rehabilitation of Papaschase above ground reservoirs was completed and a back-up generator was installed at Burnewood Booster Station.

In 2019, Water Distribution and Transmission repaired 298 water main breaks on the distribution system in Edmonton, with the majority of main breaks occurring on cast iron pipes. This number also represents the 5 year annual average of main breaks going back to 2015. EPCOR generally experiences a higher volume of breaks in the first quarter of the year attributed to deeper frost penetration as we incurred 147 in this time frame. The 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 2019, the Uni-Directional Flushing program completed flushing and valve exercising in about 34% of Edmonton (2,413 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.

In 2019, Water Distribution and Transmission completed a transmission main inspection on the major feed to the Capital Region Northeast Water Service Commission (CRNWSC) using inline inspection technology. This inspection identified an active leak that had the potential to fail catastrophically. With early identification, a repair plan was prepared and carried out successfully over three (3) weeks with limited impact to customers. Other items identified in this inspection will be assessed and prioritized for repair. Further inspections will be planned in the future to continue the success of this program.

EWSI continues to provide water and wastewater services and expertise to numerous communities in Alberta, British Columbia, Saskatchewan, as well as industrial sites in Fort McMurray.

As we move into 2020, 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 commitment will be included in our annual EnviroVista report, which will uploaded to epcor.com by June 30th, 2020.

(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

Sodium Hypochlorite C1/C2 Eff C3 Eff Channel Sodium Hypochlorite Channel Filter Polymer Filter Polymer Alum (trim) Alum (trim)

Backwash & Filter 18 Filters to Waste to River* 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 2019

EPCOR Date of AEP Report Incident Description Incident File Number Number

ENV- Alberta Environment and Parks was notified of failed total coliforms sample 20190121- collected after a hydrant was installed. The hydrant remained out of service and 18-JAN-19 348660 580490 was flushed and resampled as per procedure. Additional samples were collected to confirm the hydrant could be placed in service.

A potable water release was reported to Alberta Environment and Parks after a ENV- water main break was located and a small volume of water was released into the 20190223- 23-FEB-19 348660 Mill Creek Ravine. As per procedure water was dechlorinated and the break 184183-v1 was isolated and repaired.

During a planned shutdown of the Rossdale Water Treatment Plant, Operations planned to take the Sodium Biosulfite (SBS) injection system out of service on Waste Stream #7. SBS is used to dechlorinate water before it enters the North Saskatchewan River. Sodium sulfite pucks were placed in locations along the ENV- waste stream piping and the SBS injection system was turned off. During this 20190417- time Operations collected grab samples and analyzed for chlorine residual. A 17-APR-2019 352151 167230 result of 0.15 mg/L chlorine residual was obtained. Operations returned the SBS injection system to service, resampled and discovered 0.35 mg/L residual chlorine. Operations increased the dose of SBS and resampled and found 0 mg/L chlorine residual. This event was reported to AEP as a chlorinated water release of approximately 32 minutes in length.

As part of the Routine Distribution Sampling Program, a sample was collected ENV- and tested positive for total coliforms. As per procedure, additional samples 20190604- 4-JUN-19 354307 were collected and results were absent for total coliform. This incident was 539304 reported to AEP for notification purposes.

1.4 Summary of Violations and Notifications for 2019

EPCOR Date of AEP Report Incident Description Incident File Number Number

During an installation of service lines, a passing valve was causing the excavation to fill with water. Operations isolated the valve and shortly after a ENV- customer complaint was received. Operations flushed and sampled and results 20190609- 8-JUN-19 354483 indicated a positive for total coliforms. As per procedure, the line was flushed 607273 and resampled and results passed all water quality tests. AEP was notified of this incident.

As part of the Routine Distribution System Monitoring Program, a sample was ENV- collected and tested positive for total coliforms. As outlined in procedures 20190624- referencing the Protocol for Failed Bacteriological Results, additional samples 21-JUN-19 355107 757849 were collected. All results were absent for total coliforms. AEP was notified of this incident.

During a water main replacement project, a portion of the main was depressurized for a tie-in connection. The line was flushed and re-pressurized ENV- and a sample was collected as per procedure. Results came back within limits 20190715- 13-JUL-19 356081 for Total Chlorine and Turbidity, but tested positive for Total Coliforms. The line 814820 was flushed and resampled and results passed all water quality tests. AEP was notified of this incident.

As part of a water main replacement project, a portion of the main was depressurized to install a new hydrant. As per procedure, the line was flushed and re-pressurized and the hydrant was disinfected before samples were ENV- collected. Chlorine and Turbidity were within water quality limits but the sample 20190724- 24-JUL-19 356558 tested positive for total coliforms. The line was flushed and additional samples 756387 were collected and results were absent for total coliform. This incident was reported to AEP for notification purposes.

1.4 Summary of Violations and Notifications for 2019

EPCOR Date of AEP Report Incident Description Incident File Number Number

The routine monitoring sample collected at Kaskitayo Reservoir tested positive ENV- for total coliforms. The protocol for positive bacteriological results was activated 20190809- 8-AUG-19 357273 and a total of four resamples were collected. All results from the resample event 453575 were within water quality limits and negative for total coliforms.

A routine monitoring sample collected at Papaschase 2 Reservoir tested positive ENV- for total coliforms. Four resamples were collected, as per the protocol for 20190809- 8-AUG-19 357264 positive bacteriological results, and all resamples were within water quality limits 451833 and tested negative for total coliforms.

ENV- A subcontracted hydrovac truck experienced a mechanical failure causing 1 20190919- cubic metre of slurry (water and clay) to release onto the roadway. A very small 19-SEP-19 359124 109850 amount entered the catch basin. This was reported to AEP.

Samples were collected after a temporary shutdown of the water main and ENV- results came back positive for Total Coliforms. Additional samples were 20190916- collected after further chlorination and all sample results were negative for Total 427379 Coliforms. 14-SEP-19 358927 ENV- The requirement to report the results to AEP within the same day, outlined in the 20191007- Communication and Action Protocol for Failed Bacteriological Results in 422691 Drinking Water was not followed.

After repairs were completed in the distribution system a sample was collected ENV- as per procedure. Field chlorine and turbidity results were within normal limits 20190916- 14-SEP-19 358903 however the lab results indicated turbidity was much higher than the field result. 277089 AEP was notified.

1.4 Summary of Violations and Notifications for 2019

EPCOR Date of AEP Report Incident Description Incident File Number Number

ENV- Water samples were collected related to a water service renewal and tested 20190913- positive for total coliform. AEP was notified. All resamples were within limits and 11-SEP-19 358847 882250 negative for total coliform.

ENV- A planned outage of the fluoride system at E.L. Smith was communicated to 20190909- 8-SEP-19 358668 AEP. 437524

During an emergency replacement of a section of 900 mm transmission water main, plans were made to empty a section of the main to complete the repairs. ENV- 5000 m3 of dechlorinated water was released to a nearby ditch as a result of 20191213- 12-DEC-2019 362275 draining and flushing activities. An inspection completed revealed that erosion 456142 and sedimentation had occurred along a 100 m length of the ditch. This was reported to AEP (Ref # 32275) and plans are in place to remediate.

1.5 Alberta Environment Operator Certifications (Effective up to year end 2019) 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 WT II, WWT II Operations Engineer Manager, Operations WT IV Manager, Transmission Operations WT III Day Foreman WT III Operations Foreman WT IV HIE Foreman WT IV Operations 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 Lead Hand, Operator WT II Operator I WT II Operator I WT III 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 II Operator I WT II Operator I WT I Operator I 1.5 Alberta Environment Operator Certifications (Effective up to year end 2019) Operator Contact Number: EPCOR Water Services Dispatch (24 hr) (780) 412-6800

E.L. SMITH TREATMENT PLANT (LEVEL IV)

Employee Name Title Alberta Environment Certification Level Director, Edmonton Water Treatment Plants Senior Manager, Operations WT II, WWT II Operations Engineer Manager, Operations WT III, WWT III Day Foreman WT IV HEI Foreman WT IV Training Operator Foreman WT IV Operations Foreman WT III Operations Foreman WT IV Operations Foreman WT IV Operations Foreman WT IV Operations Foreman WT III Operations Foreman WT III Lead Hand, Operator WT IV Lead Hand, Operator WT III Lead Hand, Operator WT III Lead Hand, Operator WT III Operator I WT III, WWT II, Operator I WT II, WD II, WWT I, WWC II Operator I WT II, WD II, WWT I, WWC I Operator I WT II Operator I WT II Operator I WT I Operator I WT I Operator I 1.5 Alberta Environment Operator Certifications (Effective up to year end 2019) Operator Contact Number: EPCOR Water Services Dispatch (24 hr) (780) 412-6800

DISTRIBUTION SYSTEM (LEVEL IV FACILITY) WATER DISTRIBUTION (WD) - NETWORK MAINTENANCE

Employee Name Title Alberta Environment Certification Level Foreman III WD IV Foreman III WD IV Foreman III WD III Foreman III WD IV Foreman III WD III Foreman I WD II Foreman I WD III 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 I Foreman I WD II Foreman I WD II Foreman I WD II Foreman I WD I Foreman I WD II Water Systems Technical Support Specialist WD II Water Systems Technical Support Specialist WD II Water Systems Technical Support Specialist WD IV Equipment Operator III WD I Equipment Operator III WD I Equipment Operator III WD II Equipment Operator III WD II Equipment Operator III WD I Equipment Operator III WD II Equipment Operator III WD II Equipment Operator III WD II Truck Driver III WD II Truck Driver III WD II Truck Driver III WD I Labourer II WD II Equipment Operator III WD II Labourer II WD I Labourer II WD II Labourer II WD I Labourer II WD I Labourer II WD II Labourer II WD II Labourer II WD I 1.5 Alberta Environment Operator Certifications (Effective up to year end 2019) Operator Contact Number: EPCOR Water Services Dispatch (24 hr) (780) 412-6800

DISTRIBUTION SYSTEM (LEVEL IV FACILITY) TECHNICAL SERVICES

Employee Name Title Alberta Environment Certification Level Network Operator WD IV, WWC II, WT I Network Operator WD IV, WWC I Cross-Connection Control Tech WD II Manager, Claims & Escalations WD II Manager, Field Operations WD II Network Operator WT II, WD I, WWC I, WWT I

DISTRIBUTION SYSTEM (LEVEL IV FACILITY) WATER DISTRIBUTION (WD) - NETWORK OPERATIONS

Employee Name Title Alberta Environment Certification Level Foreman III WD III Foreman I WD II Foreman I WD II Labourer II WD II Labourer II WD II Labourer II WD I Labourer II WD I Labourer III WD II Labourer II WD I Labourer II WD II Labourer II WD II Labourer II WD I Foreman I WD II Labourer II WD I Water Systems Serviceman WD II Foreman I WD I Maintenance Repairman I WD I Maintenance Repairman I WD II Maintenance Repairman I WD II Yardman WD I Public Service Representative I WD II Public Service Representative I WD I 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, WWC I 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 1.5 Alberta Environment Operator Certifications (Effective up to year end 2019) Operator Contact Number: EPCOR Water Services Dispatch (24 hr) (780) 412-6800

DISTRIBUTION SYSTEM (LEVEL IV FACILITY) WATER METERING (WD)

Employee Name Title Alberta Environment Certification Level Foreman III WD III Inspector – Water Metering WD IV, WWC II, WT I, WWT I Inspector – Water Metering WD II Meter Installer I WD I Meter Mech. 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 II Meter Installer I WD II Meter Installer I WD I Meter Installer I WD II Meter Installer I WD I Meter Installer I WD II

(End of Section) 1.6 DEMAND/PRODUCTION STATISTICS (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) 4-Jul-17 423 -6.8 -42.7 466 PEAK DAILY DEMAND TO DATE (ML) 498 532 (6.5) 5-Jul-17 478 -3.1 -19.6 498 PEAK HOURLY DEMAND TO DATE (ML) 661 756 (12.6) 6-Jul-17 497 3.3 20.5 476 HIGH 5-DAY AVERAGE TO DATE (ML) 480 547 (6.4) 7-Jul-17 494 -0.2 -1.4 495 8-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): 2019 2018 Change % 26,841,439 29,460,517 -8.89% Rossdale WTP 45,388,049 46,407,488 -2.20% E.L Smith WTP. 13,366,666 13,726,359 -2.62% Field Pump Stations 85,596,154 89,594,364 -4.46% TOTAL

Gas Consumption (GJ): 2019 2018 Change % 95,311 99,555 -4.26% Plants 3,814 3,770 1.17% Pumping Stations 99,125 103,325 -4.06% TOTAL

Water Production/Pumpage(ML): 2019 2018 Change % 43,172 48,714 -11.38% Rossdale WTP 86,994 87,113 -0.14% E.L Smith WTP. 44,940 47,678 -5.74% Field Pump Stations 130,166 135,827 -4.17% TOTAL Note: The reservoirs and booster stations are not included into these totals.

Energy Usage 2019 2018 Energy Consumption for Treatment and 85,596,154 89,594,364 Pumpage (kWh) 676 679 Energy in kW.h per ML pumped 99,125 103,325 Gas Consumption – All Facilities (GJ) 3,814 3,770 Gas Consumption – All Field Pump Stations (GJ)

(End of Section) 2.1 Storage Capacities of Reservoirs

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

Discovery Park 5.01 1.22 6.23 0.70 7.10

Sub Total 454.67 51.89 506.56 69.35 576.08

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 630.29 51.89 682.18 128.63 810.98

(End of Section) 2.2 Reservoir Pressure Operating Ranges

Facilities Elev., m Operating Pressure Range, kPa (mTH) TREATMENT PLANTS Discharge Min. Normal Range High PRV

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 Estates 679 625 (743) 645 (746) 660 (747) 680 (750) 710

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 Discovery Park 716 716 208 (745) 330 (750) 360 (753) 470 (764) 520 (769) 550, 585

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

Burnewood 695 60 (701) 550 (751) 560 (752) 580 (754) 610 (757) 620-640 Laurel 724 210 (745) 260 (751) 280 (752) 300 (755) 350 (760) 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 22 10124 123 St. 668.561 708 716 385 465 24 131 Haddow Cl. 685* 717 730 305 430 26 2803 34 St. 712.5 742 766 295 525 27 1203 Ellwood Rd. SW 686 724 749 375 615 28 12110 26 Ave. SW 695 719 756 230 625 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 Clover Bar 731.87 803 762 300 700 TAMS 750.14 778 807 270 560 NOTE: 50 kPa ALLOWANCE FOR ALARM LIMITS AT MIN. and MAX. * appoximate elevation (End of Section) 2.4 Regional Customers

ELEVATION MINIMUM Normal Range HIGH CUSTOMER m HGL kPa HGL kPa HGL kPa HGL kPa Regional Customers 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 Sturgeon County * 692 716 231 718 255 724 314 729 363 CRNWSC 655.668 700 450 705 484 710 533 712 553 C. of Strathcona 92 Ave. 664.384 693 281 700 349 709 438 713 477 SWWSC * (Leduc) 690.104 721 303 724 333 730 391 735 440 Bulk Customers 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 Facilities Year Fixed Variable Maximum Design Discharge Flow by Pump (ML/d) Built Total Speed Speed 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 6 3 2 3 @ 16, 1 @ 24, 1 @ 32, 1 @ 18 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 Laurel Booster St. 2018 2 0 2 2 @ 2 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 Discovery Park Zone Discovery Park 2020 5 0 5 [email protected],[email protected],[email protected] TOTAL 77 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 2019 2018 2017 Treated and Pumped into the System 130,166 135,827 133,131 Water Treated at Rossdale Plants 43,172 48,714 49,583 Water Treated at E. L. Smith Plant 86,994 87,113 83,548 Supplied to Residential Customers 62,370 63,471 63,307 Supplied to Commercial/Industrial Customers 26,133 27,228 27,537 Supplied to Suburban Customers 33,970 35,346 34,655 Percentage Accounted for from: Metered & Bulk Sources 95% 93% 95% Assumed System Leakage 5% 7% 5% Average Day Pumpage (ML) 357 372 365 Peak Day Demand (ML) 489 528 498

Population Served 2019 2018 2017 Approximate Population Served (City) 972,223 951,000 941,871 Approximate Population Served (Region) 349,000 341,000 335,000 Approximate Population Served (Total) 1,321,223 1,292,000 1,276,871 3% 2.3% 1.2% 5.3% Per Capita Consumption (L/cap) 2019 2018 2017 Average Day Demand 270 288 286 Peak Day Demand 370 409 390

(End of Section) 2.7 Raw Water Intake (ML) 2019

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 33 122 105 3,267 0.0 0.0 0.0 0.0 3,267 55 331 284 8,809 12,076 February 8.8 125 112 3,138 0.0 0.0 0.0 0.0 3,138 84 320 290 8,107 11,245 March 34 115 80 2,472 0.0 98 43 1,329 3,801 240 321 289 8,945 12,745 April 0.0 60 51 1,545 30 112 81 2,426 3,970 93 320 280 8,403 12,374 May 40 86 60 1,874 56 120 87 2,701 4,575 245 359 305 9,441 14,015 June 52 115 78 2,332 0.0 134 76 2,277 4,609 243 311 283 8,490 13,099 July 18 80 60 1,873 25 102 82 2,549 4,422 242 315 277 8,583 13,006 August 53 76 65 2,016 67 107 88 2,733 4,750 159 307 258 8,013 12,762 September 58 85 75 2,240 79 110 94 2,809 5,049 211 241 232 6,972 12,021 October 0.0 131 44 1,351 0.0 140 85 2,622 3,973 74 320 267 8,270 12,243 November 0.0 0.0 0.0 0.0 129 139 133 3,987 3,987 98 300 256 7,665 11,652 December 0.0 0.0 0.0 0.0 106 136 125 3,875 3,875 72 316 262 8,120 11,996

Annual Total 22,108 27,308 49,416 99,817 149,234

Annual 0.0 131 61 0.0 140 75 55 359 273 Min/Max/Avg 2.8 Treated Water Production (ML) 2019

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 1,921.71 1,921.71 1537.0 0.07,522.59 1,927.32 7,666.941,927.32 1549.5199 10.5 86 31.0 2678.22,655 31.00 0.0 31.0348 242 7,517 0.0 359 247 7,661 333 10,316 February 1,678.76 1,678.76 1471.0 0.06,873.97 1,665.22 7,014.751,665.22 1453.6199 9.6 93 28.0 2583.52,591 28.00 0.0 28.0327 246 6,888 0.0 801 251 7,028 344 9,620 1,623.29March 1,623.29 1511.5 0.07,576.86 1,666.58 7,744.591,666.58 1541.2200 13.4 101 31.0 3160.23,117 31.00 0.0 31.0344 243 7,534 0.0 356 248 7,701 349 10,818 1,727.42April 1,727.42 1651.0 0.07,092.62 1,690.40 7,248.971,690.40 1621.8200 15.1 110 30.0 3298.63,313 30.00 0.0 30.0297 238 7,130 0.0 307 243 7,286 353 10,599 1,981.17May 1,981.17 1686.3 0.08,025.56 1,970.84 8,162.371,970.84 1682.0215 16.2 129 31.0 4017.54,006 31.00 91 31.0352 259 8,036 38 356 264 8,173 393 12,178 1,851.02June 1,851.02 1553.4 7,418.5239 1,856.88 7,540.191,856.88 1562.8215 14.9 135 30.0 4088.94,065 30.00 167 30.0340 247 7,413 169 344 251 7,534 387 11,599 1,862.05July 1,862.05 1696.0 0.07,464.21 1,871.82 7,593.051,871.82 1699.0214 15.8 122 31.0 3792.33,773 31.00 0.0 31.0295 240 7,454 0.0 313 245 7,583 366 11,357 August2,068.30 2,068.30 1724.3 0.06,971.35 2,053.63 7,108.522,053.63 1705.6218 16.0 136 31.0 4204.84,207 31.00 0.0 31.0296 225 6,986 0.0 344 230 7,123 366 11,331 September 1,620.70 1,620.70 1746.6 6,026.3130 1,645.77 6,174.951,645.77 1760.8212 15.5 153 30.0 4617.24,587 30.00 89 30.0289 200 6,001 90 294 205 6,150 358 10,737 October 1,890.97 1,890.97 1634.2 0.07,017.37 1,875.89 7,170.941,875.89 1628.3211 12.8 115 31.0 3566.03,559 31.00 0.0 31.0297 227 7,032 0.0 307 232 7,186 347 10,745 November 1,784.53 1,784.53 1597.7 6,460.5119 1,794.30 6,628.921,794.30 1596.7208 11.5 124 30.0 3718.33,708 30.00 0.0 30.0321 215 6,451 0.0 349 221 6,619 344 10,327 December 1,780.67 1,780.67 1585.8 6,789.1232 1,791.34 6,958.931,791.34 1597.9209 11.9 116 31.0 3614.63,591 31.00 0.0 31.0333 219 6,778 0.0 725 224 6,948 340 10,539

Annual Total 43,172 85,220 86,994 130,166

Annual 0.0 218 118 0.0 352 233 0.0 801 238 357 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 2019

Rossdale E.L. Smith

Month Turbidity (NTU) pH Colour (TCU) Turbidity (NTU) pH Colour (TCU)

Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg Min Max Avg January 1.1 3.3 1.8 8.0 8.2 8.1 3.7 8.1 5.2 1.2 3.9 1.8 7.8 8.2 8.0 4.3 8.6 5.3 February 1.2 2.4 1.6 7.9 8.1 8.0 1.0 8.3 6.5 1.4 8.0 1.7 7.9 8.1 8.0 4.2 8.5 6.6 March 1.2 110 14 7.8 8.1 7.9 2.9 93.4 23.6 1.2 75 10 7.6 8.1 7.9 4.1 91.1 23.3 April 10 130 45 7.8 8.3 8.1 8.7 89.0 25.8 8.6 500 50 7.8 8.5 8.1 8.6 82.7 23.5 May 8.0 80 23 8.0 8.3 8.2 7.3 48.7 22.5 10 110 30 8.2 8.4 8.3 8.4 50.2 23.6 June 15 600 110 7.7 8.4 8.2 10.3 75.9 27.9 19 600 120 8.0 8.4 8.2 11.9 85.9 29.1 July 28 3,700 150 7.9 8.4 8.2 25.7 200.0 51.8 8.3 3,900 160 8.0 8.4 8.2 26.4 172.4 51.0 August 3.0 110 15 8.0 8.5 8.4 10.4 53.0 22.9 4.7 210 20 8.2 8.5 8.4 10.5 53.8 22.2 September 1.4 13 4.6 8.3 8.5 8.4 9.4 15.0 11.7 2.9 14 5.8 8.3 8.5 8.4 9.2 16.0 11.7 October 1.9 8.7 3.3 8.2 8.4 8.3 9.0 13.2 11.0 2.1 12 4.0 8.2 8.5 8.3 7.8 14.3 10.8 November 5.0 17 8.0 8.1 8.3 8.2 7.5 13.2 10.4 5.6 18 9.6 8.1 8.3 8.2 8.1 14.2 10.6 December 1.5 45 3.5 8.0 8.2 8.1 6.5 11.9 8.0 1.2 14 3.5 7.9 8.3 8.1 6.2 11.3 8.1

Annual Min/Max/Avg 1.1 3,700 32 7.7 8.5 8.2 1.0 200.0 19.0 1.2 3,900 35 7.6 8.5 8.2 4.1 172.4 18.9

NOTES: ' -- ' indicates plant offline 3.2 Treated Water Quality Entering the Distribution System 2019

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 0.03 0.09 0.06 1.80 2.13 2.01 7.7 8.1 8.0 0.61 0.77 0.70 180 0.9 0.02 0.06 0.04 1.77 2.14 2.01 7.8 8.1 8.0 0.58 0.79 0.71 178 0.9 February 0.04 0.09 0.06 1.90 2.18 2.03 7.9 8.0 8.0 0.60 0.75 0.67 188 1.3 0.04 0.06 0.04 1.75 2.08 1.98 7.7 8.0 7.9 0.59 0.80 0.68 188 1.4 March 0.04 0.11 0.06 1.80 2.13 1.97 7.6 8.0 7.8 0.53 0.81 0.68 174 0.8 0.03 0.05 0.04 1.87 2.08 1.96 7.5 7.9 7.7 0.64 0.81 0.71 172 1.0 April 0.03 0.08 0.05 1.70 2.18 1.99 7.6 7.9 7.7 0.66 0.78 0.73 146 0.7 0.03 0.05 0.03 1.83 2.02 1.92 7.4 8.2 7.9 0.56 0.78 0.67 147 1.0 May 0.03 0.11 0.05 1.80 2.13 1.96 7.5 8.0 7.8 0.66 0.79 0.72 167 0.9 0.03 0.04 0.04 1.83 2.18 1.97 7.5 7.8 7.6 0.61 0.83 0.71 167 1.1 June 0.03 0.10 0.05 1.70 2.08 1.94 7.7 8.1 7.9 0.66 0.78 0.71 169 0.9 0.03 0.07 0.04 1.76 2.22 2.00 7.6 7.9 7.7 0.60 0.89 0.70 167 1.1 July 0.03 0.12 0.05 1.60 2.18 1.95 7.5 7.9 7.7 0.67 0.79 0.72 163 1.1 0.03 0.11 0.04 1.84 2.15 2.00 7.7 8.1 7.8 0.60 0.87 0.67 164 1.3 August 0.03 0.11 0.05 1.60 2.36 2.00 7.7 8.0 7.8 0.72 0.80 0.76 167 0.9 0.03 0.05 0.04 1.83 2.18 2.04 7.6 7.9 7.8 0.66 0.88 0.73 167 1.0 September 0.03 0.11 0.05 1.90 2.26 2.06 7.7 7.9 7.8 0.67 0.80 0.72 167 0.8 0.04 0.05 0.04 1.83 2.08 1.97 7.8 8.0 7.8 0.67 0.73 0.69 167 0.8 October 0.03 0.09 0.05 1.90 2.32 2.06 7.8 8.0 7.9 0.59 0.83 0.71 173 0.9 0.03 0.05 0.04 1.81 2.31 1.97 7.6 8.3 7.9 172 0.8 November 0.03 0.10 0.05 1.90 2.32 2.07 7.7 8.0 7.8 0.66 0.81 0.72 169 0.9 0.03 0.06 0.04 1.62 2.18 2.01 7.5 7.9 7.8 167 0.9 December 0.03 0.10 0.06 1.70 2.42 2.10 7.6 8.0 7.9 0.64 0.71 0.67 181 1.0 0.04 0.05 0.04 1.86 2.12 1.94 7.6 8.0 7.8 179 0.8

Annual Min/Max/ 0.03 0.12 0.05 1.60 2.42 2.01 7.5 8.1 7.8 0.53 0.83 0.71 170 0.9 0.02 0.11 0.04 1.62 2.31 1.98 7.4 8.3 7.8 0.56 0.89 0.70 170 1.0 Avg

NOTES: ' -- ' indicates plant offline 3.3 Rossdale Filters 1 - 9 Particle Counts (no./mL, >2um) 2019

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 31 5 1 35 3 1 42 3 1 23 2 1 25 6 1 33 3 ------1 30 3 1 29 3 February 1 41 7 1 43 5 1 45 4 1 34 5 1 27 6 1 42 5 1 32 6 1 38 7 1 34 7 March ------1 45 4 1 45 4 1 44 5 1 41 5 1 39 4 1 41 5 1 45 4 1 41 4 April ------1 43 4 1 44 3 1 37 5 1 40 6 1 44 5 1 44 4 1 36 4 1 45 8 May 1 30 2 1 31 2 1 45 4 1 33 2 1 29 3 1 26 2 1 28 2 1 42 3 1 19 2 June 1 29 2 ------1 33 2 1 26 2 1 27 3 1 33 3 1 27 2 1 36 2 1 34 2 July 1 41 2 1 34 3 1 35 4 1 35 2 1 37 3 1 33 1 1 33 2 1 34 2 1 28 2 August 1 22 1 1 31 1 1 7 2 1 37 3 1 29 3 1 31 2 1 25 2 1 17 2 1 17 2 September 1 29 3 1 21 2 ------1 35 2 1 33 4 1 26 4 1 40 4 1 30 3 1 27 3 October 1 36 3 1 26 2 ------1 15 2 1 36 5 1 26 3 1 40 3 1 29 2 1 39 2 November 1 41 2 1 27 1 ------1 32 4 1 30 3 1 37 3 1 43 3 1 45 2 December ------1 33 6 1 40 4 1 42 5 1 38 4 1 45 4 Annual 1 41 3 1 45 3 1 45 3 1 44 3 1 41 4 1 44 3 1 44 3 1 45 3 1 45 3 Min/Max/Avg

NOTE: ' -- ' indicates filter offline 3.4 E.L. Smith Filters 1 - 9 Particle Counts (no./mL, >2um) 2019

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 25 5 1 45 5 1 45 4 1 27 5 1 31 5 1 45 6 1 23 4 1 32 8 1 34 4 February 1 33 9 1 45 8 2 18 6 2 45 10 2 43 12 1 41 9 1 33 8 6 45 19 1 35 8 March 1 35 6 2 45 7 ------1 45 7 1 44 8 1 37 7 1 29 6 1 45 12 1 33 5 April 1 43 3 1 35 4 ------1 39 3 1 33 4 1 45 4 1 30 3 1 28 4 1 32 3 May 1 37 5 1 45 6 ------1 33 4 1 39 4 1 45 5 1 33 4 1 38 5 1 27 4 June 1 29 2 1 30 4 ------1 29 2 1 28 3 1 24 3 1 23 3 1 29 3 1 22 3 July 1 45 3 1 45 4 ------1 44 2 1 44 2 1 38 2 1 45 1 1 27 2 1 44 2 August 1 20 3 1 34 5 ------1 29 4 1 30 4 1 23 4 1 21 4 1 24 6 1 24 4 September 1 23 4 1 38 8 ------1 36 5 1 36 6 1 34 7 1 42 9 1 35 7 1 26 4 October 1 38 4 2 44 10 ------1 43 8 1 45 5 1 33 5 1 44 5 1 45 6 1 24 5 November 1 42 5 4 44 15 ------1 37 4 1 37 8 1 37 6 1 38 4 1 33 5 1 30 4 December 1 36 5 2 37 17 ------1 35 3 1 38 7 1 33 6 1 37 3 1 31 6 1 25 3

Annual 1 45 5 1 45 8 1 45 5 1 45 5 1 45 6 1 45 5 1 45 4 1 45 7 1 44 4 Min/Max/Avg

NOTE: ' -- ' indicates filter offline 3.5 E.L. Smith Filters 10 - 18 Particle Counts (no./mL, >2um) 2019

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 43 6 1 33 4 1 33 5 1 45 6 1 45 4 1 44 5 1 45 6 1 45 5 1 46 7 February 1 45 10 1 44 8 2 44 9 1 43 8 1 45 7 1 33 7 1 45 8 1 45 7 1 39 7 March 1 45 9 1 27 5 1 37 6 1 45 6 1 41 5 1 45 6 1 44 7 1 45 6 1 45 10 April 1 30 3 1 25 3 1 31 3 1 43 3 1 26 3 1 23 3 1 23 3 1 27 3 1 33 3 May 1 27 4 1 27 4 1 37 4 1 35 4 1 34 4 1 41 6 1 36 4 1 26 4 1 43 8 June 1 39 3 1 33 3 1 35 3 1 30 3 1 28 3 1 28 3 1 39 2 1 23 2 1 22 3 July 1 17 3 1 45 2 1 43 2 1 45 2 1 45 1 1 44 2 1 42 2 1 41 2 1 45 2 August 1 28 4 1 24 5 1 39 5 1 30 4 1 33 4 1 37 4 1 45 4 1 37 4 1 25 4 September 1 26 5 1 28 5 1 28 6 1 35 5 1 43 4 1 41 4 1 28 4 1 28 5 1 28 4 October 1 22 5 1 32 4 1 39 5 1 27 4 1 27 4 1 32 4 1 45 4 1 23 4 1 24 4 November 1 27 3 1 34 3 1 35 3 1 26 3 1 30 3 1 40 3 1 23 3 1 27 3 1 31 4 December 1 25 3 1 31 3 1 40 3 1 30 2 1 25 2 1 28 4 1 39 2 1 27 2 1 35 6 Annual 1 45 5 1 45 4 1 44 4 1 45 4 1 45 4 1 45 4 1 45 4 1 45 4 1 46 5 Min/Max/Avg

NOTES: ' -- ' indicates filter offline 3.6 Rossdale Filters 1 - 9 Turbidity (NTU) 2019

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

Annual 0.01 0.09 0.03 0.01 0.08 0.03 0.01 0.08 0.02 0.01 0.10 0.03 0.02 0.11 0.03 0.01 0.09 0.02 0.02 0.10 0.03 0.01 0.09 0.03 0.02 0.11 0.04 Min/Max/Avg

NOTES: ' -- ' indicates filter offline 3.7 E.L. Smith Filters 1 - 9 Turbidity (NTU) 2019

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 0.03 0.08 0.06 0.01 0.08 0.03 0.02 0.07 0.03 0.02 0.07 0.03 0.01 0.08 0.03 0.04 0.08 0.05 0.02 0.08 0.03 February ------0.03 0.08 0.04 0.06 0.08 0.06 0.01 0.08 0.03 0.02 0.07 0.03 0.02 0.07 0.03 0.02 0.08 0.03 0.04 0.08 0.05 0.02 0.08 0.03 March ------0.02 0.07 0.04 ------0.01 0.08 0.02 0.02 0.08 0.03 0.01 0.08 0.03 0.02 0.08 0.03 0.03 0.08 0.04 0.02 0.08 0.03 April ------0.01 0.08 0.02 ------0.01 0.07 0.02 0.02 0.08 0.04 0.02 0.08 0.03 0.02 0.08 0.03 0.04 0.08 0.04 0.02 0.08 0.03 May ------0.01 0.08 0.02 ------0.01 0.08 0.02 0.02 0.08 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 June ------0.01 0.07 0.01 ------0.01 0.08 0.02 0.02 0.08 0.02 0.02 0.08 0.03 0.02 0.08 0.02 0.04 0.08 0.04 0.02 0.06 0.03 July ------0.01 0.07 0.01 ------0.01 0.09 0.02 0.02 0.07 0.03 0.02 0.08 0.03 0.02 0.10 0.02 0.04 0.13 0.04 0.02 0.15 0.03 August ------0.01 0.07 0.02 ------0.01 0.07 0.02 0.02 0.08 0.03 0.02 0.08 0.03 0.02 0.07 0.03 0.03 0.08 0.04 0.02 0.08 0.03 September ------0.01 0.05 0.02 ------0.01 0.06 0.02 0.02 0.07 0.03 0.02 0.07 0.03 0.01 0.07 0.03 0.04 0.08 0.04 0.02 0.08 0.02 October ------0.01 0.08 0.02 ------0.01 0.06 0.02 0.02 0.08 0.03 0.02 0.08 0.03 0.01 0.08 0.03 0.02 0.08 0.04 0.01 0.08 0.03 November ------0.01 0.07 0.02 ------0.01 0.07 0.02 0.02 0.08 0.03 0.02 0.08 0.03 0.01 0.08 0.03 0.02 0.08 0.04 0.01 0.08 0.03 December ------0.01 0.05 0.02 ------0.01 0.07 0.02 0.02 0.08 0.03 0.01 0.08 0.03 0.03 0.08 0.05 0.03 0.08 0.05 0.01 0.08 0.03

Annual ------0.01 0.08 0.02 0.03 0.08 0.06 0.01 0.09 0.02 0.02 0.08 0.03 0.01 0.08 0.03 0.01 0.10 0.03 0.02 0.13 0.04 0.01 0.15 0.03 Min/Max/Avg

NOTES: ' -- ' indicates filter offline 3.8 E.L. Smith Filters 10 - 18 Turbidity (NTU) 2019

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 0.06 0.03 0.02 0.08 0.03 0.02 0.07 0.02 0.02 0.07 0.03 0.02 0.08 0.03 0.02 0.08 0.03 0.03 0.08 0.04 0.03 0.08 0.03 0.02 0.08 0.03 February 0.02 0.08 0.03 0.02 0.08 0.03 0.02 0.08 0.03 0.02 0.08 0.03 0.02 0.08 0.03 0.02 0.08 0.03 0.03 0.08 0.04 0.02 0.08 0.03 0.03 0.08 0.03 March 0.02 0.07 0.02 0.02 0.08 0.03 0.02 0.07 0.02 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 0.02 0.08 0.03 April 0.02 0.06 0.02 0.02 0.08 0.03 0.02 0.07 0.02 0.02 0.07 0.03 0.02 0.08 0.03 0.02 0.08 0.03 0.03 0.08 0.03 0.02 0.08 0.03 0.02 0.07 0.03 May 0.02 0.07 0.02 0.02 0.08 0.03 0.02 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 0.01 0.07 0.03 June 0.02 0.06 0.02 0.03 0.08 0.03 0.02 0.08 0.02 0.02 0.08 0.03 0.02 0.07 0.03 0.02 0.08 0.03 0.03 0.07 0.03 0.02 0.07 0.03 0.01 0.07 0.03 July 0.02 0.15 0.03 0.03 0.12 0.03 0.02 0.14 0.02 0.03 0.12 0.04 0.03 0.14 0.03 0.02 0.08 0.03 0.03 0.10 0.04 0.02 0.06 0.03 0.01 0.19 0.03 August 0.02 0.08 0.03 0.03 0.08 0.04 0.02 0.06 0.02 0.03 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 0.03 0.02 0.08 0.03 September 0.02 0.06 0.02 0.03 0.07 0.03 0.02 0.05 0.02 0.03 0.08 0.04 0.03 0.07 0.03 0.02 0.08 0.03 0.03 0.07 0.03 0.02 0.07 0.03 0.03 0.07 0.03 October 0.02 0.06 0.03 0.03 0.08 0.03 0.02 0.06 0.02 0.03 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 0.03 0.02 0.08 0.03 November 0.02 0.06 0.02 0.02 0.08 0.03 0.02 0.06 0.02 0.03 0.08 0.04 0.03 0.08 0.03 0.02 0.08 0.03 0.03 0.08 0.03 0.02 0.08 0.03 0.02 0.08 0.03 December 0.02 0.06 0.02 0.03 0.08 0.03 0.02 0.06 0.02 0.02 0.08 0.03 0.03 0.07 0.03 0.02 0.08 0.03 0.03 0.08 0.03 0.03 0.08 0.03 0.02 0.07 0.03

Annual 0.02 0.15 0.02 0.02 0.12 0.03 0.02 0.14 0.02 0.02 0.12 0.03 0.02 0.14 0.03 0.02 0.08 0.03 0.03 0.10 0.04 0.02 0.08 0.03 0.01 0.19 0.03 Min/Max/Avg

NOTES: ' -- ' indicates filter offline 3.9 Combined Filter Effluent Water Quality 2019

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 28 2 0.04 0.10 0.05 1 15 5 0.02 0.05 0.03 February 1 23 4 0.04 0.08 0.05 1 23 9 0.01 0.06 0.03 March 1 32 4 0.04 0.12 0.05 1 17 7 0.01 0.04 0.03 April 1 24 4 0.04 0.09 0.05 1 15 3 0.02 0.04 0.03 May 1 15 2 0.01 0.08 0.05 1 14 5 0.02 0.04 0.03 June 1 10 2 0.03 0.07 0.05 1 8 3 0.02 0.04 0.03 July 1 12 2 0.01 0.09 0.05 1 20 2 0.02 0.09 0.03 August 1 19 2 0.04 0.06 0.05 1 15 4 0.01 0.06 0.03 September 1 23 3 0.04 0.06 0.05 2 13 5 0.02 0.04 0.03 October 1 17 2 0.04 0.08 0.05 1 16 5 0.02 0.04 0.03 November 1 18 3 0.04 0.10 0.05 1 16 4 0.01 0.08 0.03 December 1 19 5 0.04 0.07 0.05 1 10 4 0.01 0.05 0.03

Annual 1 32 3 0.01 0.12 0.05 1 23 5 0.01 0.09 0.03 Min/Max/Avg

NOTES: ' -- ' indicates plant offline 3.10 Rossdale UV Disinfection - Filters 1 - 3 2019

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 35.1 59.3 37.0 9.5 28.9 434.5 34.0 67.7 38.0 10.0 29.0 435.2 34.0 82.5 37.5 11.7 27.8 456.9 92.0 95.6 93.9 February 33.9 58.5 36.3 10.4 28.6 346.6 34.3 58.8 36.4 10.7 30.7 442.9 34.5 55.6 36.7 10.1 27.1 414.7 90.9 94.7 92.7 March ------0.0 34.5 91.0 37.8 12.1 30.2 494.2 34.4 115.6 37.8 7.8 29.8 437.3 92.0 97.1 94.3 April ------0.0 34.4 44.6 36.8 10.1 27.0 467.4 34.7 82.6 39.3 8.4 27.9 451.4 89.7 95.0 93.9 May 34.1 57.0 35.6 17.6 34.4 480.4 35.0 48.6 36.8 14.1 28.3 92.8 34.7 47.4 36.2 11.4 34.5 462.5 88.7 94.3 92.2 June 34.2 45.9 35.6 16.3 36.4 500.9 ------0.0 34.7 59.4 35.6 17.4 33.8 570.0 88.2 93.8 92.0 July 34.8 44.7 35.6 13.8 33.3 535.0 34.9 53.2 35.7 20.8 34.8 19.7 34.7 42.3 35.5 12.0 31.6 517.2 87.3 92.5 90.7 August 32.9 58.1 35.6 13.1 33.0 541.7 33.8 40.9 35.6 17.4 32.7 545.4 34.9 68.1 35.6 19.0 29.1 69.7 89.9 94.0 91.9 September 34.2 55.5 35.7 11.3 33.3 579.4 34.0 56.8 35.7 11.7 34.2 582.3 ------0.0 91.4 93.9 92.8 October 34.2 55.4 36.4 12.1 35.1 522.6 34.5 57.5 36.1 11.7 37.2 555.6 ------0.0 91.5 94.3 92.9 November 34.3 79.0 36.7 16.4 26.9 216.0 35.2 84.6 37.1 16.5 31.1 196.1 ------0.0 91.8 95.0 93.4 December ------0.0 ------0.0 ------0.0 91.2 95.2 93.3 Annual 4157 3832 3380 Total Annual Min/Max/ 32.9 79.0 36.0 9.5 36.4 33.8 91.0 36.7 10.0 37.2 34.0 115.6 36.9 7.8 34.5 87.3 97.1 92.8 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 2019

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 34.4 56.5 38.7 11.8 28.9 481.8 33.8 83.9 37.2 10.7 28.8 194.2 34.2 55.4 37.0 10.0 29.2 376.0 92.0 95.6 93.9 February 34.2 56.4 36.7 12.4 29.4 388.2 33.6 55.2 36.6 11.8 26.5 260.3 31.9 47.7 36.3 10.3 30.9 314.7 90.9 94.7 92.7 March 34.0 161.8 39.7 14.6 29.2 471.3 33.9 58.8 37.7 12.4 29.0 372.3 34.8 47.7 36.5 13.8 31.6 415.9 92.0 97.1 94.3 April 35.1 83.1 40.2 9.1 25.8 394.3 32.5 86.2 37.0 10.6 28.1 431.8 33.9 67.0 36.0 8.8 30.1 473.7 89.7 95.0 93.9 May 34.2 48.7 35.9 10.5 34.5 520.8 32.7 37.2 35.6 10.9 31.8 495.9 34.9 49.4 35.7 10.0 35.5 560.2 88.7 94.3 92.2 June 34.4 53.2 35.9 13.8 33.4 468.9 34.1 59.4 35.6 9.0 32.4 470.6 32.5 57.4 35.6 8.3 34.7 612.0 88.2 93.8 92.0 July 34.0 58.3 35.6 10.6 30.8 522.9 33.6 48.3 35.6 10.4 32.0 395.2 33.9 55.7 35.6 20.9 37.7 560.4 87.3 92.5 90.7 August 34.5 40.1 35.7 16.5 32.2 520.5 33.9 48.1 35.6 13.5 32.0 465.1 34.7 64.4 35.6 13.6 34.6 563.9 89.9 94.0 91.9 September 34.1 54.5 35.7 14.2 35.5 547.0 32.7 54.5 36.1 12.4 31.3 560.0 31.4 48.6 35.6 13.4 34.4 606.5 91.4 93.9 92.8 October 35.0 54.1 35.8 10.5 24.4 61.2 33.2 68.0 39.3 11.3 32.5 438.0 34.3 65.9 35.8 10.7 32.5 536.5 91.5 94.3 92.9 November ------0.0 33.1 87.1 38.9 10.3 31.1 608.4 33.9 80.4 36.0 11.2 37.3 667.3 91.8 95.0 93.4 December ------0.0 33.1 75.0 38.3 10.3 30.6 647.6 34.0 58.2 36.4 10.5 36.5 724.3 91.2 95.2 93.3 Annual 4377 5339 6411 Total Annual Min/Max/ 34.0 161.8 37.2 9.1 35.5 32.5 87.1 37.0 9.0 32.5 31.4 80.4 36.0 8.3 37.7 87.3 97.1 92.8 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 2019

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 ------0.0-- 34.0 56.8 37.1 10.5 32.0 333.8 33.5 59.5 37.8 11.7 29.6 215.7 92.0 95.6 93.9 February 35.1 56.2 35.7 11.2 32.6 203.9 33.7 55.8 35.9 11.8 28.9 239.6 34.8 65.5 36.2 9.9 29.8 210.2 90.9 94.7 92.7 March 33.7 47.6 36.4 10.7 35.4 394.1 34.9 47.3 36.0 11.1 33.6 373.2 33.6 59.6 37.8 11.9 33.8 427.6 92.0 97.1 94.3 April 33.7 74.7 35.8 15.3 32.1 472.7 33.4 74.5 36.2 13.0 34.5 461.1 34.6 48.3 36.8 14.9 28.6 411.4 89.7 95.0 93.9 May 34.8 59.8 35.6 12.4 37.3 589.9 34.9 38.8 35.7 16.2 35.9 534.4 33.4 44.2 35.6 13.0 38.1 474.7 88.7 94.3 92.2 June 34.1 57.6 35.6 10.1 36.7 563.9 35.0 58.5 35.6 10.1 37.5 573.1 34.5 41.7 35.6 19.1 34.9 554.9 88.2 93.8 92.0 July 34.1 57.3 35.6 11.6 33.9 515.5 34.7 41.8 35.6 12.2 38.4 513.0 33.9 53.9 35.6 20.4 35.6 467.9 87.3 92.5 90.7 August 34.6 47.8 35.6 19.4 38.3 588.5 34.4 67.5 35.7 12.8 36.2 567.7 34.7 46.7 35.6 21.3 37.0 568.2 89.9 94.0 91.9 September 34.4 47.3 35.6 11.4 37.1 669.0 34.7 62.2 36.0 12.1 37.8 614.8 31.5 47.5 35.6 14.3 35.9 624.7 91.4 93.9 92.8 October 33.9 56.9 35.7 10.5 35.9 513.3 33.3 76.2 37.1 10.2 38.0 569.1 32.5 58.8 35.9 11.7 36.5 551.6 91.5 94.3 92.9 November 34.1 71.0 35.9 11.4 37.2 727.2 34.1 79.9 35.7 13.1 38.5 713.8 34.8 76.4 35.7 10.1 39.0 727.8 91.8 95.0 93.4 December 34.1 74.0 35.7 10.4 38.5 793.6 34.4 58.2 35.6 11.8 35.9 792.3 33.3 62.0 35.7 12.1 37.8 764.8 91.2 95.2 93.3 Annual 6031 6286 6000 Total Annual Min/Max/ 33.7 74.7 35.8 10.1 38.5 33.3 79.9 36.0 10.1 38.5 31.5 76.4 36.1 9.9 39.0 87.3 97.1 92.8 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 2019

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 44.3 151.3 64.6 49.0 119.7 2,126.6 45.6 130.4 63.7 46.2 103.4 1,952.5 45.3 111.2 65.0 29.3 111.4 2,136.7 43.7 177.3 48.9 41.0 101.8 1,948.7 92.5 96.0 94.1 February 34.0 163.0 63.1 54.4 107.4 2,291.4 35.9 172.1 61.6 52.0 101.2 2,169.3 44.3 178.6 60.5 55.4 104.7 2,299.6 40.3 107.3 52.9 35.1 74.2 697.3 90.7 94.4 92.5 March 45.0 196.0 69.6 49.4 108.8 2,712.5 43.4 133.7 66.7 26.4 105.3 2,582.4 45.0 196.7 68.6 49.6 107.4 2,737.4 41.4 93.8 48.0 34.2 70.4 202.2 92.2 96.7 94.6 April 45.8 137.1 63.2 45.6 107.4 2,463.3 42.8 138.4 63.1 41.7 101.5 2,082.0 44.2 189.8 67.3 25.2 115.7 2,252.1 46.8 115.6 47.7 23.4 91.9 904.9 91.0 95.9 94.2 May 45.1 107.3 62.8 25.4 116.0 2,390.9 44.9 131.1 66.5 29.6 95.5 1,511.3 46.8 86.5 60.9 59.2 121.4 2,717.5 46.6 94.6 48.3 21.0 98.8 2,050.1 90.2 95.1 92.7 June 45.1 216.3 62.2 22.8 118.8 1,834.9 44.9 171.8 67.4 24.4 115.1 1,546.9 44.7 171.7 66.0 20.3 115.6 2,219.8 46.7 105.1 47.3 31.9 95.3 2,295.3 89.7 95.5 92.6 July 44.7 85.2 62.9 20.3 107.4 2,707.5 45.2 119.4 63.4 26.5 100.4 721.8 45.1 176.8 58.4 20.0 102.8 2,239.7 45.9 124.8 47.2 24.2 91.5 2,271.1 88.5 93.3 91.7 August 44.9 115.2 59.9 46.7 107.5 2,556.7 45.1 96.2 59.7 26.6 99.4 2,371.0 45.0 153.0 57.1 20.9 93.5 265.7 46.7 94.9 47.5 38.9 92.2 2,288.8 90.6 93.8 92.7 September 66.3 141.6 72.9 66.6 87.2 197.9 45.3 98.4 70.0 43.2 82.3 2,071.3 45.8 102.0 72.7 47.2 96.5 2,202.9 46.8 148.3 47.3 50.3 72.9 1,988.5 92.3 94.9 93.9 October 41.2 93.1 67.0 27.6 116.1 1,274.1 42.4 113.9 68.3 21.3 102.8 1,472.1 45.5 91.9 73.2 28.6 115.2 2,638.1 46.3 100.0 47.3 38.4 95.6 2,207.5 92.4 96.5 94.1 November 45.3 175.5 63.2 54.6 95.5 2,309.0 44.9 261.7 68.4 52.3 92.7 1,949.3 45.0 156.4 70.7 63.3 107.2 2,518.3 46.9 327.7 47.7 60.8 75.2 252.4 93.2 95.4 94.3 December 41.4 140.8 61.8 41.2 140.6 2,455.2 44.4 133.0 64.9 51.1 87.0 829.9 45.4 156.6 67.2 42.0 113.2 2,698.1 46.9 162.8 49.2 38.4 90.9 1,429.2 93.7 95.5 94.9

18,536 Annual 25,320 21,260 26,926 Total

Annual Min/Max/ 34.0 216.3 63.7 20.3 140.6 35.9 261.7 65.3 21.3 115.1 44.2 196.7 66.3 20.0 121.4 40.3 327.7 48.1 21.0 101.8 88.5 96.7 93.5 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 2019

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 6.5 8.3 7.6 12 19 14 6.3 7.0 6.5 6.5 7.2 6.7 5.1 9.1 6.7 6.4 7.0 6.6 February 6.5 8.5 7.6 6.7 15 13 6.3 6.5 6.5 6.6 6.8 6.7 5.2 8.9 7.0 6.5 6.5 6.5 March 6.5 9.2 8.0 12 16 14 6.5 7.0 6.7 6.6 7.3 6.9 5.3 9.1 7.1 6.5 7.0 6.7 April 7.6 9.1 8.6 13 20 16 7.0 7.0 7.0 7.0 7.3 7.2 6.6 12 8.4 6.9 7.0 7.0 May 7.0 11.7 10.0 17 29 23 7.0 7.0 7.0 7.1 7.5 7.3 7.7 22 14 6.9 7.0 7.0 June 9.6 14.2 10.8 17 34 27 7.0 7.0 7.0 7.1 7.6 7.4 13 25 18 6.7 7.0 7.0 July 7.7 15.4 12.0 7.7 41 29 6.5 7.0 7.0 6.9 7.7 7.4 9.6 27 18 6.4 7.0 7.0 August 10.1 14.5 11.8 25 42 32 6.9 7.0 7.0 7.3 7.7 7.5 15 26 20 7.0 7.0 7.0 September 8.9 11.1 10.1 18 34 26 7.0 7.0 7.0 7.2 7.6 7.4 10 23 17 6.9 7.0 7.0 October 7.8 11.3 8.6 14 23 18 6.9 7.0 7.0 7.1 7.4 7.2 6.9 17 10 7.0 7.0 7.0 November 7.7 8.1 7.9 12 18 14 6.9 7.0 7.0 7.1 7.2 7.2 6.4 9.3 7.6 7.0 7.0 7.0 December 7.0 8.1 7.7 12 15 13 6.4 7.0 6.8 7.1 7.2 7.1 6.0 8.7 7.1 7.0 7.0 7.0

Annual 6.5 15.4 9.2 6.7 42 20 6.3 7.0 6.9 6.5 7.7 7.2 5.1 27 12 6.4 7.0 6.9 Min/Max/Avg

NOTES: ' -- ' indicates plant offline 4.1 Liquid Alum Chemical Consumption 2019

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 8.10 -- 9.51 54,379 -- 54,379 170,303 February 6.67 -- 6.26 43,387 -- 43,387 104,563 March 36.5 52.7 41.5 139,994 164,962 304,955 722,626 April 85.0 84.7 93.4 276,831 421,720 698,552 1,615,990 May 86.4 86.3 103 332,981 482,310 815,291 2,025,091 June 102 91.1 117 512,753 390,493 903,245 2,038,615 July 149 149 180 583,034 779,463 1,362,498 3,188,159 August 75.6 75.4 96.4 309,907 423,491 733,398 1,598,314 September 38.1 38.1 58.3 176,218 220,261 396,479 839,636 October 36.9 38.9 60.9 85,645 232,055 317,700 1,040,927 November -- 40.2 61.6 -- 330,818 330,818 973,982 December -- 24.9 52.2 -- 204,011 204,011 875,420

Annual Total 2,515,130 3,649,585 6,164,715 15,193,626

Annual Avg 64.2 68.7 73.8

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 2019

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 0.12 -- 0.23 383 -- 383 318.28 February 0.11 -- 0.08 310 -- 310 285.14 March 0.17 0.19 0.24 374 313 687 978.53 April 0.34 0.34 0.30 523 822 1,345 2,523.35 May 0.32 0.32 0.30 598 861 1,459 2,883.82 June 0.30 0.28 0.28 694 704 1,398 2,369.55 July 0.32 0.32 0.37 598 806 1,404 3,187.33 August 0.32 0.32 0.27 644 875 1,520 2,190.05 September 0.25 0.25 0.23 560 702 1,262 1,636.81 October 0.32 0.25 0.24 281 712 993 2,014.07 November -- 0.29 0.32 -- 1,159 1,159 2,420.62 December -- 0.23 0.29 -- 904 904 2,398.96

Annual Total 4,965 7,858 12,823 23,207

Annual Avg 0.26 0.28 0.28

NOTES: ' -- ' indicates plant offline - Primary polymer consumption (kg) at 100% by weight mixed at the sites to required solution 4.3 Carbon Chemical Consumption 2019

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 ------March 62.9 61.2 73.9 43,557 60,126 103,683 210,670 April 17.0 16.8 15.0 8,052 10,639 18,691 17,371 May ------June 4.86 7.51 4.66 704 895 1,599 2,361 July 24.5 25.2 20.9 10,100 13,414 23,514 32,873 August 2.91 2.89 2.49 391 503 894 1,411 September ------October ------November -- -- 0.22 ------58 December ------

Annual Total 62,804 85,577 148,381 264,744

Annual Avg 36.0 35.5 38.9

NOTES: ' -- ' indicates carbon not being used 4.4 Sodium Hypochlorite Chemical Consumption 2019

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 2.44 -- 1,002,783 -- 1,002,783 3.21 3,761,355 February 2.90 -- 1,163,499 -- 1,163,499 3.03 3,232,861 March 3.36 4.02 988,131 702,019 1,690,150 3.44 3,987,127 April 3.02 3.36 591,026 1,019,322 1,610,347 3.08 3,407,344 May 3.05 3.23 713,337 1,091,985 1,805,322 3.22 4,007,916 June 3.18 2.99 930,057 954,008 1,884,065 3.34 3,729,751 July 3.35 3.59 795,469 1,148,399 1,943,868 3.41 3,851,712 August 3.47 3.61 874,642 1,235,452 2,110,094 3.64 3,834,301 September 3.04 3.17 853,020 1,111,440 1,964,460 3.40 3,113,853 October 2.45 3.02 405,299 1,112,644 1,517,943 3.05 3,321,726 November -- 3.16 -- 1,575,231 1,575,231 2.90 2,930,603 December -- 3.21 -- 1,553,728 1,553,728 2.92 3,118,413

Annual Total 8,317,263 11,504,228 19,821,490 42,296,963

Annual Avg 3.05 3.31 3.22

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 2019

Dosage (mg/L) Consumption (kg)

Month Rossdale E.L. Smith Rossdale E.L. Smith January 0.47 0.47 1,369 4,130 February 0.58 0.75 1,648 6,126 March 0.51 0.47 1,671 4,323 April 0.38 0.13 1,327 1,064 May 0.34 0.10 1,424 972 June 0.32 0.07 1,327 616 July 0.36 0.07 1,441 596 August 0.29 0.09 1,261 748 September 0.29 0.12 1,381 818 October 0.33 0.12 1,195 969 November 0.32 0.11 1,226 868 December 0.41 0.10 1,518 823

Annual Total 16,787 22,053

Annual Avg 0.38 0.21

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 2019

Dosage (mg/L) Consumption (kg)

Month Rossdale E.L. Smith Rossdale E.L. Smith January 0.58 0.60 8,911 25,605 February 0.59 0.59 8,599 23,370 March 0.58 0.60 10,255 26,049 April 0.58 0.60 10,692 24,303 May 0.58 0.60 12,860 27,322 June 0.58 0.60 12,959 24,950 July 0.58 0.60 12,144 25,021 August 0.64 0.62 14,896 24,637 September 0.66 0.60 16,488 20,403 October 0.63 0.60 12,242 23,967 November 0.61 0.60 12,356 22,194 December 0.62 0.60 12,224 23,400

Annual Total 144,626 291,221

Annual Avg 0.60 0.60

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 2019

Dosage (mg/L) Consumption (kg)

Month Rossdale E.L. Smith Rossdale E.L. Smith January 3.22 8.55 1,788 16,930 February ------March 14.2 17.4 38,195 120,041 April 15.2 24.7 106,101 377,007 May 12.9 23.5 109,615 411,480 June 13.6 26.1 106,049 406,299 July 24.0 44.0 190,960 687,005 August 10.0 20.1 86,994 311,302 September 2.10 9.82 19,835 127,079 October 2.95 11.0 21,924 166,695 November 4.31 12.7 33,187 178,083 December 3.93 10.3 19,615 152,338

Annual Total 734,263 2,954,283

Annual Avg 10.3 20.0

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 2019

Dosage (mg/L) Consumption (kg)

Month Rossdale EL Smith Rossdale EL Smith January 0.68 0.66 9,138 24,529 February 0.70 0.64 9,009 21,935 March 0.78 0.67 11,965 25,215 April 0.77 0.67 12,388 23,730 May 0.74 0.66 14,199 26,230 June 0.72 0.67 13,990 24,238 July 0.79 0.70 14,339 25,430 August 0.76 0.67 15,256 23,035 September 0.69 0.46 14,992 4,534 October 0.66 -- 11,246 -- November 0.66 -- 11,738 -- December 0.65 -- 11,162 --

Annual Total 149,423 198,877

Annual Avg 0.72 0.66

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 2019

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 25.9 41,608 608 16.2 52,026 1,127 February 27.7 37,343 542 17.1 45,824 1,057 March 18.6 30,657 644 14.1 43,112 1,148 April 25.4 40,963 660 16.5 45,936 1,076 May 28.1 41,092 561 18.3 58,519 1,201 June 32.5 41,217 529 17.9 42,832 877 July 17.5 30,026 650 31.3 50,280 926 August 12.8 18,077 537 26.6 58,685 857 September 13.6 15,918 446 20.5 42,085 795 October 21.8 22,453 409 14.6 41,273 1,064 November 20.7 14,699 274 16.8 46,104 1,023 December 24.5 17,373 274 14.6 44,686 1,139

Annual 4,378 571,361 12,288 Total 6,134 Annual 22.4 18.7 Avg

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) 2019

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 262 -- 136 83 23 504 441 -- 378 159 65 0.5 48 1,092 1,127 February 335 -- 124 78 7.4 544 445 -- 365 166 45 0.5 40 1,061 1,057 March 511 -- 107 49 13 680 538 -- 401 157 74 0.7 44 1,214 1,148 April 505 -- 96 49 4.3 655 414 -- 372 154 36 5.1 45 1,027 1,076 May 433 -- 88 34 12 566 491 30 383 158 48 7.0 52 1,168 1,201 June 421 41 77 24 0.0 563 424 10 295 83 45 0.7 41 900 877 July 502 -- 85 38 21 645 428 -- 252 120 94 0.6 42 938 926 August 415 -- 81 29 16 541 415 -- 278 83 51 0.6 34 862 857 September 349 -- 85 26 0.0 461 440 -- 262 64 13 0.1 30 810 795 October 289 12 85 33 4.2 424 532 -- 332 122 46 0.4 36 1,068 1,064 November 132 12 81 30 15 270 495 -- 330 113 54 0.5 31 1,023 1,023 December 84 -- 106 68 2.9 260 573 -- 392 124 33 0.6 32 1,154 1,139 Annual 4,238 65 1,150 541 119 6,113 5,636 40 4,040 1,504 605 17 474 12,318 12,288 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 2019

Clarifier Blowdown Clarifier Washdown Backwash Water

Month TSS Aluminum TSS Aluminum TSS Aluminum (kg) (kg) (kg) (kg) (kg) (kg) January 17,324 2,467 0 0 11,449 3,963 February 13,782 1,890 0 0 11,373 3,937 March 266,611 12,961 0 0 11,674 4,041 April 547,956 30,753 0 0 3,959 1,370 May 368,450 35,445 0 0 4,895 1,694 June 1,191,301 38,710 14,026 459 7,196 2,491 July 1,454,423 59,634 0 0 8,089 2,800 August 248,071 32,491 0 0 3,554 1,230 September 111,675 17,242 0 0 3,597 1,245 October 76,005 13,849 153 35 4,595 1,591 November 120,839 14,399 221 28 7,107 2,460 December 54,808 9,015 0 0 8,106 2,806 Annual Total 4,471,244 268,855 14,399 522 85,592 29,628

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 2019

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 0.14 20.0 5.37 0.00 0.00 0.00 0.41 19.8 4.46 February 0.00 0.00 0.00 0.53 20.0 5.07 0.00 0.00 0.00 0.22 20.0 5.33 March 0.00 0.00 0.00 0.10 20.0 8.42 0.00 0.00 0.00 0.24 20.0 4.19 April 0.00 0.00 0.00 0.60 20.0 9.55 0.00 0.00 0.00 0.46 20.0 6.37 May 0.00 0.00 0.00 0.54 20.0 6.34 0.00 0.00 0.00 0.24 20.0 4.07 June 0.00 0.00 0.00 0.60 20.0 6.46 0.00 0.00 0.00 0.15 20.0 5.73 July 0.00 0.00 0.00 0.10 20.0 5.60 0.00 0.00 0.00 0.40 20.0 10.2 August 0.00 0.00 0.00 0.64 20.0 6.15 0.00 0.00 0.00 0.10 20.0 8.39 September 0.00 0.00 0.00 0.54 20.0 5.52 0.00 0.00 0.00 0.61 20.0 7.99 October 0.00 0.00 0.00 0.41 20.0 6.91 0.00 0.00 0.00 0.10 20.0 3.80 November 0.00 0.00 0.00 1.01 20.0 8.57 0.00 0.00 0.00 0.10 20.0 4.04 December 0.00 0.00 0.00 0.49 20.0 7.36 0.00 0.00 0.00 0.10 20.0 5.14

Annual 0.00 0.00 0.00 0.10 20.0 6.78 0.00 0.00 0.00 0.10 20.0 5.81 Min/Max/Avg 5.4 E.L. Smith Clarifier Blowdown, Clarifier Washdown and Backwash Water Waste Stream Data 2019

Clarifier Blowdown Clarifier Washdown Backwash Water

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

January 52,375 7,433 0 0 27,142 9,395 February 39,247 4,564 0 0 27,521 9,527 March 458,803 31,513 0 0 26,591 9,205 April 1,242,819 70,538 0 0 25,030 8,664 May 655,503 88,168 1,671 214 23,784 8,233 June 794,727 88,369 721 67 21,898 7,580 July 1,668,046 138,509 0 0 27,248 9,432 August 608,380 69,223 0 0 10,383 3,594 September 187,624 36,151 0 0 6,296 2,179 October 206,297 45,179 0 0 15,337 5,309 November 283,558 42,514 0 0 20,723 7,173 December 176,508 38,211 0 0 16,646 5,762

Annual Total 6,373,886 660,372 2,392 281 248,601 86,054

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 2019

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 0.13 20.0 3.41 0.00 0.00 0.00 7.26 8.13 7.91 February 0.13 20.0 3.84 0.00 0.00 0.00 6.43 8.11 7.91 March 1.21 6.09 2.50 0.00 0.00 0.00 6.25 8.05 7.67 April 0.51 2.50 2.49 0.00 0.00 0.00 6.60 10.1 7.27 May 0.92 2.50 2.49 0.00 0.00 0.00 6.00 7.54 7.11 June 0.94 3.05 2.48 0.00 0.00 0.00 6.53 7.68 7.14 July 1.60 2.50 2.50 0.00 0.00 0.00 6.60 7.68 7.05 August 1.63 2.50 2.50 0.00 0.00 0.00 6.76 8.27 7.65 September 0.31 2.65 2.44 0.00 0.10 0.00 2.90 11.4 7.28 October 0.30 3.40 2.44 0.00 0.00 0.00 7.01 7.63 7.47 November 0.59 2.50 2.49 0.00 0.00 0.00 7.22 7.92 7.66 December 1.65 2.50 2.50 0.00 0.00 0.00 7.46 7.95 7.76

Annual 0.13 20.0 2.67 0.00 0.10 0.00 2.9 11.4 7.5 Min/Max/Avg 6.0 Reservoir Chlorine Residual (mg/L) - Part 1 2019

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 1.61 2.05 1.69 1.74 2.17 2.07 1.32 2.01 1.91 2.00 2.24 2.11 1.70 2.18 2.10

Feb 1.67 2.09 1.79 1.78 2.44 2.08 1.54 1.97 1.87 2.03 2.25 2.12 1.69 2.23 2.14

Mar 1.57 2.02 1.71 1.60 2.25 2.02 1.51 2.00 1.88 1.90 2.23 2.07 1.64 2.19 2.09

Apr 1.50 1.95 1.59 1.70 2.12 1.94 1.51 1.95 1.82 1.86 2.16 1.98 1.81 2.19 2.02

May 1.34 1.90 1.47 1.62 2.02 1.84 1.60 1.96 1.83 1.81 2.41 1.98 1.69 2.47 1.99

Jun 1.05 1.81 1.30 1.43 1.82 1.70 1.46 1.90 1.70 1.67 2.08 1.88 1.61 2.30 1.88

Jul 1.07 1.83 1.25 1.51 1.78 1.68 1.28 1.84 1.57 1.26 2.04 1.82 1.63 2.23 1.83

Aug 1.00 2.02 1.25 1.32 1.85 1.65 1.23 1.90 1.59 1.53 2.09 1.78 1.52 2.18 1.85

Sep 1.26 2.06 1.50 1.50 1.94 1.73 1.51 1.94 1.73 1.62 1.99 1.75 1.51 2.24 1.85

Oct 1.08 1.98 1.34 1.59 2.33 1.86 1.54 1.94 1.83 1.82 2.11 1.97 1.60 2.32 2.03

Nov 1.24 2.08 1.48 1.63 2.04 1.93 1.62 2.05 1.91 1.65 2.23 2.00 1.60 2.20 2.02

Dec 1.45 2.17 1.64 1.85 2.13 1.96 1.71 2.15 1.96 1.91 2.16 1.98 1.72 2.35 2.04

Monthly Min/Max/ 1.00 2.17 1.48 1.32 2.44 1.87 1.23 2.15 1.80 1.26 2.41 1.95 1.51 2.47 1.98 Avg

NOTES: '--' Indication Analyzer Offline 6.1 Reservoir Chlorine Residual (mg/L) - Part 2 2019

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 1.59 1.89 1.77 1.62 2.12 1.94 1.39 2.26 1.88 1.54 2.28 1.85 1.76 2.06 1.87 Feb 1.70 1.91 1.83 1.72 2.11 1.95 1.59 2.24 1.89 1.65 2.23 1.91 1.67 2.06 1.87 Mar 1.67 1.87 1.78 1.64 2.19 1.91 1.56 2.24 1.87 1.41 2.19 1.84 1.68 2.01 1.86 Apr 1.61 1.83 1.73 1.59 2.02 1.85 1.52 2.12 1.77 1.53 2.29 1.78 1.56 2.04 1.78 May 1.53 1.73 1.61 1.56 1.98 1.79 1.52 2.24 1.74 1.52 2.19 1.64 1.56 1.94 1.69 Jun 1.33 1.58 1.45 1.38 1.86 1.66 1.31 2.14 1.55 1.23 2.16 1.48 1.35 1.99 1.52 Jul 1.23 1.47 1.35 1.15 1.87 1.57 1.18 2.07 1.44 1.19 2.11 1.36 1.26 1.92 1.44 Aug 1.07 1.52 1.34 1.20 2.00 1.48 1.17 2.13 1.39 1.04 2.25 1.29 1.09 1.91 1.30 Sep 1.10 1.84 1.34 1.52 1.97 1.76 1.15 2.06 1.37 1.23 2.18 1.57 1.35 2.01 1.54 Oct 1.39 1.45 1.42 1.66 2.04 1.87 1.23 2.24 1.48 1.49 2.28 1.72 1.05 2.06 1.59 Nov 1.16 1.82 1.40 1.60 2.16 1.98 1.35 2.15 1.58 1.70 2.28 1.91 1.70 2.25 1.77 Dec 1.27 1.56 1.47 1.61 2.21 2.00 1.51 2.23 1.75 1.80 2.37 1.95 1.67 2.09 1.79 Monthly Min/Max/ 1.07 1.91 1.54 1.15 2.21 1.81 1.15 2.26 1.63 1.04 2.37 1.69 1.05 2.25 1.67 Avg

NOTES: '--' Indication Analyzer Offline