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ASHBRIDGES BAY WASTEWATER TREATM
Table 1 on Page 2 incorrectly re
The plant switched from CBOD5Table 1 should read as follows:
Table 1: Influent Parameters
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CITY OF TORONTO WASTEWATER TREAT
ANNU
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MENT PLANT
AL REPORTS
NUAL REPORT
2 and 2013.
inning of 2012.
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ASHBRIDGES BAYWASTEWATER TREATMENT PLANT
2013 Annual Report
March 31, 2014
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EXECUTIVE SUMMARY
The Ashbridges Bay Treatment Plant is the largest of four wastewater treatment plants operated bythe City of Toronto. Located in Torontos east end, the plant has a nominal treatment capacity of818,000 m3/day and serves an equivalent population of 1,524,000. Treated effluent is discharged toLake Ontario. In 2013, the facility was operated under the ECA No. 2251-8Y8KRT amendedNovember 29, 2012.
The average daily influent flow rate in 2013 was 631.6 ML/day. The 2013 average influentconcentrations were 295.5 mg/L of Suspended Solids (SS), 196.7 mg/L of Biological OxygenDemand (BOD), and 6.2 mg/L of Total Phosphorus (TP).
Ashbridges Bay achieved the following effluent quality in 2013:
ECA* 2013 Treated EffluentSuspended Solids (SS) 25 mg/L 7.7 mg/L
Carbonaceous Biological Oxygen Demand(CBOD5)
25 mg/L 6.8 mg/L
Total Phosphorus (TP) 1 mg/L 0.64 mg/L
pH 6.5 9.5 7.2
Escheria Coli (E. Coli) 200 CFU/100 mL 90 CFU/100 mL
SS Loading Rate 20,450 kg/day 4,782 kg/day
CBOD5Loading Rate 20,450 kg/day 4,214 kg/day
TP Loading Rate 818 kg/day 401 kg/day* Referenced from ECA No. 2251-8Y8KRT amended November 29, 2012
There were 10 secondary treatment bypass occurrences in 2013 where portions of the flow receivedprimary treatment before being disinfected and discharged into Lake Ontario. Total bypassed flows
were estimated to be 2,074 ML.
During 2013, the biosolids generated at Ashbridges Bay were managed through agricultural landapplication, land filling, pelletization, mine reclamation, and soil amendment use. The total amount ofbiosolids generated at the plant in 2013 was 142,908 wet tonnes. The biosolids generated met all themetal concentration requirements set out in O.Reg 267/03.
The plant continued with numerous capital projects, notably the: Design of new WAS thickeningfacility, Construction of P building headworks upgrades, D building upgrade and new biofilter, andAeration Tanks upgrades.
Polymer consumption in 2013 was 283.7 tonnes for Waste Activated Sludge thickening, and 685.1
tonnes for biosolids dewatering. Ferrous chloride consumption was 1,335 tonnes as Fe. SodiumHypochlorite consumption and liquid chlorine for effluent disinfection totalled 0.96 ML and 486.6tonnes, respectively. Average monthly consumption for potable water, hydro, and natural gas in 2013was 33,121 m3, 9,961 M kWh, and 414,204 m3, respectively.
The plant operating costs for 2013 totalled $45.2M. In 2013, the Ashbridges Bay Treatment Plant had170 employees. There were 218 Total Lost Days due to work-related injuries.
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Table of Contents
EXECUTIVE SUMMARY...................................................................................................................................i
Table of Contents ................................................................................................................................................. ii
1. INTRODUCTION....................................................................................................................................... 1
2. OPERATIONS ............................................................................................................................................ 2
2.1 Influent Quality.................................................................................................................................... 2
2.2 Preliminary Treatment ........................................................................................................................ 2
2.3 Primary Treatment .............................................................................................................................. 32.4 Secondary Treatment ........................................................................................................................... 3
2.5 Final Effluent Quality .......................................................................................................................... 4
2.6 Bypasses .............................................................................................................................................. 4
2.7
Solids Handling ................................................................................................................................... 52.8 Biosolids Management ........................................................................................................................ 7
2.9 Complaints .......................................................................................................................................... 7
2.10 Odour Reduction Plan ......................................................................................................................... 8
3. CAPITAL PROJECTS AND STUDIES ................................................................................................... 9
4. MAINTENANCE ...................................................................................................................................... 10
4.1 Flow Meter Calibration Record ........................................................................................................ 10
4.2 Preliminary and Primary Treatment (Work Area 1) ......................................................................... 10
4.3 Secondary Treatment (Work Area 2) ................................................................................................. 104.4 Dewatering (Work Area 3) ................................................................................................................ 11
4.5 Solids Handling (Work Area 4) ......................................................................................................... 11
4.6
Digestion & Air Flotation (Work Area 5).......................................................................................... 13
4.7 Steam System, HVAC & Odour Control ............................................................................................ 14
4.8 Consumables, Mechnical & Welding, Groundskeeping & Licensed Vehicles (Work Area 7) ........... 15
4.9 Disinfection, Plant Water, Elevators (Work Area 8) ......................................................................... 16
5. CHEMICALS AND UTILITIES ............................................................................................................. 17
5.1 Chemicals .......................................................................................................................................... 17
5.1.1 Polymer for WAS Thickening .................................................................................................... 17
5.1.2 Polymer for Biosolids Dewatering ............................................................................................. 17
5.1.3 Ferrous Chloride for Nutrient Removal ..................................................................................... 17
5.1.4 Chlorine for Disinfection ........................................................................................................... 17
5.1.5 Sodium Hypochlorite for Disinfection and Odour Control ........................................................ 18
5.2 Utilities .............................................................................................................................................. 18
5.2.1
Water .......................................................................................................................................... 18
5.2.2 Hydro ......................................................................................................................................... 18
5.2.3 Natural Gas ................................................................................................................................. 18
6. OPERATIONAL COSTS ......................................................................................................................... 19
7. HUMAN RESOURCES ............................................................................................................................ 20
7.1 Staffing .............................................................................................................................................. 20
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7.2 Occupational Health & Safety ........................................................................................................... 20
7.3 Staff Training & Development ........................................................................................................... 21
7.4 Utility Operator Certification ............................................................................................................ 21
7.5 MOE Correspondence ....................................................................................................................... 22
Appendices
APPENDIX A - Glossary of Abbreviations & Definitions
APPENDIX B Plant Schematic
APPENDIX C Plant Performance Charts:
Influent Flows
Influent SS & BOD Concentrations
Influent TKN & Total Phosphorus Concentrations
Effluent SS & CBOD5 Concentrations
Effluent TKN, Total Phosphorus & Ammonia Concentrations
Digester Gas ProductionAPPENDIX D Influent and Effluent Metal Concentrations
APPENDIX E Dewatered Biosolids Metal Concentrations
APPENDIX F Analytical Testing Summary
APPENDIX G Influent & Bypass Flow Meter Calibration Records
APPENDIX H Odour Reduction Plan
List of Tables
Table 1: Influent Parameters .................................................................................................................. 2
Table 2: Primary Treatment Effluent Parameters ................................................................................... 3
Table 3: Secondary Treatment Process Parameters ................................................................................ 4
Table 4: Annual Average Final Effluent Parameters ............................................................................. 4
Table 5: Monthly Average Final Effluent Parameters ............................................................................ 4
Table 6: Bypass Events Summary .......................................................................................................... 5
Table 7: Solids Handling Process Parameters ........................................................................................ 6
Table 8:Biosolid Management Methods ................................................................................................ 7
Table 9: Utility Consumption ............................................................................................................... 18
Table 10: Operating Costs .................................................................................................................... 19
Table 11: Plant Staffing ........................................................................................................................ 20
Table 12: Wastewater Treatment Certificates ...................................................................................... 22
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2. OPERATIONS
2.1 Influent QualityThe Ashbridges Bay Treatment Plant treats wastewater coming from the Mid-Toronto, High Level,Low Level, and Lakefront Interceptor Sewers, as well as the Queen Street and Coxwell AvenueTrunk Sewers. The High Level, Low Level, Lakefront Interceptors, and the Queen Street Trunk sewerflows are pumped to the plant via the Pumping Station known as M Building. The Mid-TorontoInterceptor flows are pumped to the plant via the Pumping Station known as T Building. TheCoxwell Avenue Trunk Sewer flows come to the plant by gravity. Once it enters the plant,wastewater flows by gravity through the plants processes.
A summary of annual flow and influent parameter concentrations for the past two years is shown inTable 1. The plant experienced a 9.6% increase in influent flow from 2012 to 2013, and a 5.6%increase over the average of the last three years. A comparison of monthly influent flow rates and
characteristics for 2013 is illustrated in Appendix C.
Influent to the Ashbridges Bay Treatment Plant also includes sludge flows received from the HumberTreatment Plant and the North Toronto Treatment Plant. Ashbridges Bay received an average of 57dry tonnes/day of liquid biosolids, and 562 m3/day of waste activated sludge from the HumberTreatment Plant via the Mid-Toronto Interceptor. The North Toronto Treatment Plant transferred anaverage of 0.3 ML / day of raw sludge to Ashbridges Bay Treatment Plant via the Coxwell SanitaryTrunk Sewer.
Table 1: Influent Parameters
Parameter 2013 2012 2011 2010
Influent Flow [ML/day] 631.6 576.1 622.4 596.3
Total Annual Flow [ML] 230,456 210,834 227,355 217,641
Influent SS [mg/L] 296 275.2 274.0 260*
Influent BOD [mg/L] 197 178.2 142.4 137*
Influent TP [mg/L] 6.2 6.2 6.4 5.9**These values were incorrectly reported in 2010 and have been corrected as shown
Influent concentrations for eleven (11) select metals have been included in Appendix D and presentedagainst the sewer Bylaw limits for comparison purposes only.
2.2 Preliminary Treatment
Raw wastewater flows into two preliminary treatment facilities, P and D Buildings where grit andscreenings are removed.
The P Building has twelve grit channels six non-aerated chain and bucket type each having ahydraulic capacity of 64,000 m3/day, and six aerated clam shell bucket type each having a hydrauliccapacity of 141,000 m3/day. There are also ten automatic bar screens, each having a hydrauliccapacity of 272,500 m3/day. The grit and screenings from P Building are hauled to a sanitary landfillsite.
The D Building preliminary treatment facility was recently commissioned in 2013. Wastewaterpasses through five mechanical screens, with each screen channel rated at a peak flow rate of 545,000
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m3/day. The wastewater then flows into four aerated grit channels, each rated at a peak flow rate of545,000 m3/day. The grit and screenings from D Building are further processed prior to hauling to thelandfill.
The quantity of grit and screenings removed by the grit channels and screening systems averaged 13tonnes per day in 2013.
2.3 Primary Treatment
The next step in the treatment process is called Primary Settling or Sedimentation where the flowenters large tanks and its velocity is reduced, allowing heavier solids in the wastewater to settle to thebottom. Sludge collectors in the tanks sweep the settled sludge (called Raw Sludge) into sludgehoppers located at the bottom of the tank at one end, from where it is pumped to the anaerobicdigestion tanks. There are twelve Primary Clarifiers, six tanks (#1 to #6) with dimensions of 61 m x19.5 m x 4.5 m and rated at 142,900 m3/day, three tanks (#7 to #9) with dimensions of 76.2 m x32.04m x 4.5 m and rated at 308,400 m3/day, and three tanks (#10 to #12) with dimensions of 91.4 m
x 35.05 m x 4.88 m and rated at 385,500 m3/day, with a total installed capacity of 2,939,100 m3/day.
Table 2 contains a summary of key primary treatment effluent parameter concentrations for 2013 andprevious years.
A portion of waste activated sludge from the Final Clarifiers is diverted to the Primary Clarifiers toco-settle with the raw sludge.
Table 2: Primary Treatment Effluent Parameters
Parameter 2013 2012 2011 2010
Primary SS [mg/L] 176.8 216.1 339.9 550.5
Primary CBOD5[mg/L] 101.8 113.3 138.2 272.5
2.4 Secondary Treatment
In the activated sludge process, effluent from the Primary Clarifiers is mixed with Return ActivatedSludge from the Final Clarifiers and aerated. The activated sludge is made up of naturally occurringbacteria and other micro-organisms. The micro-organisms use oxygen and dissolved organics in thewastewater for their metabolic functions and in doing so purify the wastewater. There are elevenrectangular Aeration Tanks, each with dimensions of 161.5 m x 6.17 m x 4.6 m and rated at 91,000m3/day. The tanks employ a step-feed aeration process with four passes per aeration tank and areequipped with coarse air bubble diffusers.
The mixed liquor from the Aeration Tanks flows to large quiescent Final Clarifiers where Activated
Sludge is allowed to settle. A controlled quantity of this sludge is "returned" to the Aeration Tanks torepeat the treatment process, and the excess is removed as Waste Activated Sludge and directed to thePrimary Clarifiers, or the Flotation process for thickening, and then pumped to the Digestion Tanks.There are eleven Final Clarifiers, each with dimensions of 124.4 m x 24 m x 5.3 m and rated for91,000 m3/day.
A summary of key aeration parameters for the last four years is shown in Table 3.
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Table 3: Secondary Treatment Process Parameters
Parameter 2013 2012 2011 2010
Aeration Loading [kg CBOD5/m3day] 0.35 0.53 0.7 1.46
Mixed Liquor Suspended Solids [mg/L] 1839 1467 2309 2002
2.5 Final Effluent Quality
Chlorine is mainly used to disinfect the final effluent prior to discharging into Lake Ontario; however,Sodium hypochlorite is also occasionally used to disinfect the final effluent. The plant outfall isequipped with a number of diffusers and extends 1000 m into the lake from the shore.
In 2013, the Ashbridges Bay Treatment Plant continued to produce a high quality effluent whichsurpassed requirements of the plants ECA. A summary of key final effluent parameters for theprevious two years is shown in Table 4. Details of the plant final effluent characteristics are presentedin graphical form in Appendix C.
Table 4: Annual Average Final Effluent Parameters
Parameter ECA* 2013 Removal
Efficiency
2012 Removal
Efficiency
SS [mg/L] 25 7.7 97% 8.4 97%CBOD5 [mg/L] 25 6.8 96% 6.9 96%
pH 6 8.5 7.2 - 7.2 -SS Loading Rate (kg/day) 20,450 kg/day 4,782 kg/day - 4,810 kg/day -CBOD5Loading Rate (kg/day) 20,450 kg/day 4,214 kg/day - 3926 kg/day -TP Loading Rate (kg/day) 818 kg/day 401 kg/day - 330 kg/day -
* Referenced from ECA No. 2251-8Y8KRT amended November 29, 2012
Table 5: Monthly Average Final Effluent Parameters
Parameter ECA Jan Feb March April May June July Aug Sept Oct Nov Dec
TP [mg/L] 1 0.63 0.62 0.52 0.62 0.80 0.63 0.54 0.56 0.69 0.65 0.77 0.68
E-Coli*[CFU/100mL]
200 44.2 54.6 59.4 22.6 2.5 2.6 3.6 66.0 128.4 243.6 255.4 197.5
* These figures represent adjusted monthly geometric mean values to include substitution of "1" where "0" was previously reported
Final effluent concentrations for eleven (11) select metals have been included in Appendix D.
2.6 Bypasses
There were 10 secondary treatment bypass occurrences in 2013 where portions of the flow received
primary treatment before being disinfected and discharged into Lake Ontario. Each incident wasreported to the MOE Spills Action Center and recorded in the plants Monthly Report. Secondarybypass events occur due to high wet weather flows that exceed the plants secondary treatmentcapacity. There were 9 secondary treatment bypass occurrences in 2012.
A summary of bypass events occurring in 2013 is presented in Table 6. Secondary bypass eventsresulted in a total annual bypass volume of 2,074ML, whereas annual volume of final effluent
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Table 7: Solids Handling Process Parameters
Parameter 2013 2012 2011
Primary Sludge Treated [m3/day] 5,067 5,546 6,900
Primary Sludge TS (%) 2.9 2.72 2.60WAS to Primary Treatment[m3/day]
9,160 14,523 35,288
WAS to Thickening [m3/day] 10,469 9,665 8,992
WAS TS (%) 0.54 0.49 0.69
TWAS Treated [m3/day] 876 677 980
TWAS TS (%) 4.8 4.6 4.8
Volume to Digestion [m3/day] 5,933 6,222 5,900
Liquid Biosolids TS (%) 1.8 1.7 2.0
Dewatered Sludge Cake [%] 27.8 28.3 28.3
Anaerobically digested biosolids are conditioned with a polymer and dewatered using 12 high speedcentrifuges, with a total capacity of about 300 L/s. The resulting biosolids cake is pumped either tothe plants truck-loading facility for haulage and disposal, or to the onsite pellet producing facility.
The total centrifuge run-time in 2013 was 51,451 unit-hours.
The volume transferred to the digesters averaged 5,933 m3/day in 2013.
In 2013, the average solids concentration of dewatered sludge cake was 27.8%, and centrate qualityaveraged 1,959 mg/L of suspended solids. The overall average solids capture rate was 77%.
Concentrations of eleven metals in digested sludge are compared to metal concentrations regulated byOntario Regulation 267/03, The Nutrient Management Act, which governs the maximum metalconcentration in biosolids that are applied to land. The analyses may be found in Appendix E. Theseresults indicate that the biosolids met MOE regulations for all metals and E. Coli.
The average digester gas volume generated in 2013 was estimated to be 71,834 m3/day.
In 2013 the daily average inflow to the Ashbridges Bay Treatment Plant was 631.6 ML/day. Theaverage daily influent flow for 2014 is projected to be 690 ML/day based on the medium-flowscenario given by the Facility Forecast report (2004). This flow projection for 2014 does not exceedthe rated plant capacity of 818 ML/day and is expected to generate a sludge volume that will be +/-5% of the given volume for 2013.
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2.8 Biosolids Management
Biosolids generated at the plant are managed in a number of ways, including agricultural landapplication, alkaline stabilization, landfilling, and pelletization. Biosolids management from the
Ashbridges Bay Treatment Plant in 2013 totalled 142,908 wet tonnes and was managed as follows:
Land Application
A total of 38,109 wet tonnes of biosolids was sent to approved agricultural land application sites inOntario. During the 2013 land application season, the City contracted an independent field inspectorto monitor the practices of the City's land appliers. The independent field inspector observed theapplication of all biosolids on agricultural land in Ontario. The inspector was responsible forensuring the Nutrient Management Act (NMA) and accompanying Regulations were adhered to, sitespecific requirements were followed, and monitoring and recording of odour measurements weretaken before, during and after application.
Alkaline Stabilization
A total of 28,389 wet tonnes of biosolids was further processed and used as a soil amendment.
Pelletization
The operation and maintenance of the facility and marketing of pellets is managed by an outsidecontractor. In 2013, 61,085 wet tonnes of biosolids were processed by the pelletizer. Pellet quality in2013 met the standards set out by the Canadian Fertilizers Act.
Landfill Management of Biosolids
A total of 7,356 wet tonnes was transported to various approved landfill sites.
Mine Reclamation
A total of 7,969 wet tonnes of biosolids was utilized at mine reclamation sites.
Table 8 below summarizes the biosolids management methods utilized and the total amount ofbiosolids sent to each management option.
Table 8:Biosolid Management Methods
Biosolids Management
Method
Total
(wet tonnes)
Agricultural Land Application 38,109
Alkaline Stabilization(Soil Amendment)
28,389
Pelletization 61,085
Landfill 7,356
Mine Reclamation 7,969TOTAL 142,908
2.9 Complaints
The Ashbridges Bay Treatment Plant personnel logged 8 complaints related to odour and 1 complaintrelated to noise in 2013. All reported complaints were investigated by City of Toronto staff and,where possible, action was taken immediately.
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2.10 Odour Reduction Plan
As per Section 22 of the ABTP Amended ECA AIR Number 3771-92NP7X, a review of the OdourReduction Plan summarizing the work progress in 2013, including odour and total sulphur reduction
activities undertaken with associated reduction levels achieved can be found in Appendix H.
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3. CAPITAL PROJECTS AND STUDIES
As part of the Toronto Water Capital Program, the Ashbridges Bay Treatment Plant commenced or
continued with the following capital works projects and studies in 2013:
Aeration Odour Control Upgrades
Aeration Tanks Upgrades
Air Compressor Upgrades
Anaerobic Digestion Tank # 15 Rehabilitation
Anaerobic Digestion Tank #9 12 Upgrade
Automation of blowers based on DO
Blower Building Upgrades
Blower Control Panels
Boiler No. 4 Replacement
Boiler Stack Analyzer
Cable Tray in Truck Loading Facility Upgrades
Chlorine (Cl) Car Access Upgrade
Condition Assessment and Overhaul of Primary Clarifier Travelling Bridges
Condition Assessment of Pelletizer
D Blgd Upgrade and Biofilter
D Bldg Roof
Dewatering Process Equipment and Odour Control Unit Upgrades
Distributed Generator for Critical Load Standby Power
Ferrous Upgrades
Z Building Fire Safety Plans
Rehabilitation of Primary and Final Clarifiers
M & T Pumping Station Critical Repairs and Upgrades M & T Pumping Station Odour Control and HVAC Upgrades
MCC Replacements and Upgrades across the plant
Mobile Standby Generators
New Hoist in Plant Water Pumping Station
New Integrated Sewage / Wet Weather Flow Pumping Station, replacing M & T Pumping
New Outfall
New WAS Thickening Facility
North Substation Transformer Replacement and PCS & Breaker Upgrades
P Building Upgrades and Odour Control
Plant Services (Power, Water and Gas) Upgrades
Plant Water Basement and Chlorine Area Lighting Upgrades Polymer System Upgrade
Replacement of TLF Biofilter
SCADA Server Upgrades
Replacement of Sump Pumps in Z Building
Replacement of Waste Gas Burners
Training Centre Upgrade
UV Disinfection Study
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4. MAINTENANCE
The Ashbridges Bay Treatment Plant maintenance activities in 2013 were distributed between eight
Work Areas. Staff from these groups performed a variety of scheduled, preventative, predictive andbreakdown maintenance on a diverse spectrum of equipment. The main goal of maintenance activitiesis to ensure equipment availability to meet plant process operation requirements.
The following is a summary of significant maintenance accomplishments over the past year. Theseactivities are considered to be Minor Modifications and were carried out as per Condition 11, asrequired by conditions 10(5)(c), (e) and (k) of the ECA.
4.1 Flow Meter Calibration Record
Flow is metered in Conduits #1 to 5, each of the 4 screen effluent channels in D Building, and theEast and West Bypass channels. Calibration data sheets for flow meters are attached in Appendix G.
4.2 Preliminary and Primary Treatment (Work Area 1)
Work Area 1 includes two raw sewage pumping stations (M and T Buildings), preliminarytreatment areas (D and P Buildings), and three primary treatment areas (Tanks #1-6, Tanks #7-9,and Tanks #10-12). The following maintenance was completed in 2013:
Replacement of Moyno pump (scum pump) for D Bldg, Primary Tank #12
Replacement of Drive Shaft, Bearings, Sprockets, and Chain for Primary Tank #11
Primary Tank Bridge #7:o Replacement of one cog wheel shaft and bearingso Replacement of the rack and pinion teeth, and bolts on west side of the traveling
bridge
Replacement of Drive Gear Box and its auxiliary for Primary Tank #9 Bridge Replacement of all SS Plow Cables for Primary Tank #7, 8, and 9 Bridges
Automatic Lubricators were installed on all Primary Tank Bridges
4.3 Secondary Treatment (Work Area 2)
Work Area 2 includes eleven Aeration Tanks and eleven Final Clarifiers. The following maintenancewas completed in 2013:
Major air leaks from Aeration System( i.e. distribution channel, and aeration tank pipes, etc)were repaired
As part of Energy Management / Upgrade project; 100 horsepower motors for aeration tanks#1 4 were replaced with 40 hoursepower
Aeration Tank #4 and 9:o Air Header in Distribution channel was changed from PVC to Stainless Steel Pipe.o Fine Bubbler Diffusers were addedo Complete overhaul of the tanks was done
Ferrous chloride delivery system was overhauled, including the installation of positivedisplacement pumps for versatility and efficiency of the system
Gland Water upgrades for Return Activated Sludge and Scum pumps.
Process Air flow meters and D.O. meters were replaced for automating DO control system
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Mixed Liquor Suspended Solid and Return Activated Sludge Analzyers (solid meters) forTank # 1 9 were replaced
Air diffusers for Aeration Tank #4 and 7 were replaced and cleaned upon inspections
Oil coolers from three blowers were replaced 22 Gear boxes and motors on South and North side of final settling clarifiers were overhauled
New weirs for Aeration Tank #5 was installed
City Water, potable lines were connected to blowers, in order to serve as a coolant
Two return activated sludge pumps were overhauled
4.4 Dewatering (Work Area 3)
Work Area 3 includes the Centrifuges for dewatering operations. The following maintenance wascompleted in 2013:
Centrifuges 1, 2, and 4 were overhauled, including rotating assembly, main drive motor andback drive motors.
Preventative and predictive maintenance program (i.e. lubrication) on Sludge CakeConveyors were completed.
New ABB VFD for Centrifuges #9 and 12 were installed
For Centrifuges #9 and 12; DC back drive motors were converted to AC back drive, and ABBVFD was installed
Overhauled 4 AC and 6 DC motors
Replaced sludge feed pump #3
Three sludge feed grinders and motors were replaced
One new transfer pump and one discharge valve for centrate wet well pump were installed,and sequence of the pump operation was implemented
Replace flame arrestor and valves on the Sludge Holding Tanks
Activated Carbon Media in Air Scrubbers for Equalization tanks were replaced for odour
control Installation of two new sump pumps
Vibration Monitoring System for Centrifuges #1 12:o Implemented on HMIo Installed new transducers for vibration monitoring
Upgraded and Re-calibrated eight centrifuge flow meters
Installed six level sensors on polymer tanks
Installed one new Polymer dosing pump
Installed three new polymer transfer pumps.
Installed two Polymer preparation booster pumps
Installed two backflow preventers
Refurbished four sludge valves, including installation of new actuators for each sludge valve
Installed two VFD for sludge pump #1 and 5
Installed one VFD for Polymer transfer pump # 6.
Installed four Krohne flow meters on sludge feed lines
4.5 Solids Handling (Work Area 4)
Work Area 4 includes the Biosolids Storage Silos, Sludge Cake Transfer Pumps, Truck Load Facility,Biofilters, Odour Control Building, Instrument Air Compressors (Auxiliary Building), Lab Building
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Maintenance, Training Center Building Maintenance, Operational responsibilities includeDisinfection of Final Effluent. The following maintenance was completed in 2013:
a) Schwing Pumps Schwing Pump 201:
o Refurbished screw feeder gear boxo Replaced all hydraulic hoseso Installed new oil cooler for power pack A & Bo Installed new motor & gear box for extraction screwo Replaced sliding frame cylinder with new one (west side)o Continuous PM as per WMSo Replaced VFD for extraction screw feeder
Schwing Pump 202:o Installed two refurbished differential cylindero Replaced all hydraulic hoses
o Replaced S2 & S3 with refurbished control valveo Installed two new material cylindero Installed new oil cooler for power pack A & Bo Installed new stainless water boxo Installed new bearing plate for screw feedero Installed new hydraulic pump on power pack Ao Installed refurbished gear box on extraction screwo Installed refurbished cylinder on sliding frameo Continuous PM as per WMSo Replaced VFD for extraction screw feeder
Schwing Pump 203:o Replaced all hydraulic hoses
o Installed new oil cooler for power pack A & Bo Installed refurbished screw feeder gearboxo Installed new hydraulic pump on power pack Ao Installed new stainless water boxo Installed refurbished cylinder on sliding frameo Continuous PM as per WMS
Others:
o Refurbished sump pumpso Installed additional plant water supply connections to Schwing #1 for washing
purposeo Re-routed water drainage for three Schwing pumps
b) Truck Loading Facility:
Weigh Scale Upgrade:o Replaced load cells for loading bay #1o Installed conduit to run new loading cell cables
Replaced sump pump discharge pipe in T.L Building
Replaced worn liners for shaft less screw conveyors in solid hoppers
Replaced belts for Exhaust Fan -301 & 302, Scrubber Fan 402, and Bio-Filter Fan 421
Replaced all packing on Live Bottom Conveyor 324 & 325.
Irrigation piping and custom sprinkler installation on Bio-beds #1, 2, 3, and 4c) Auxiliary Building:
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Overhauled two compressor supply fan NX2315A and NX2316A
#2 Instrument Air Compressoro Replaced main crank oil seal
o Replaced electric motorso Replaced HP and LP piston guide ringo Replaced head gasket
#3 Instrument Air Compressor Replaced heat exchanger
Relocation of all auto-drains on all receiver tanks on compressors #1, 2, 3 and 4. Floor holes in the basement of auxiliary building was covered by welded steel plate covers
for health and safetyd) Silo Building:
Sliding Frame upgrade for Silos #1, 2, and 3
Installed new floor drain pipe on the 3rdfloor of Silo building
Installed floor aluminum sections on 1st floor of Silo building Health and Safety
Installed new dedicated instrument air line to main gas valve receiver - Pelletizer.
4.6 Digestion & Air Flotation (Work Area 5)
Work Area 5 includes twenty Anaerobic Digesters and ten DAF tanks. The following maintenancewas completed in 2013:
Flotation:o Refurbished polymer pump #3, including pump discharge trainso Polymer Preparation Tanks #1, 2, and 3 Sealed leaks from tanks and repaired the
concrete padso TWAS pump #1 and 6 Replaced and modified pump and gear drive assembly
including pump base.
o Installed new Plant Water filters for DAF and Z bldg.o Flotation Tank # 8 Fabricated and installed new top skimmers, including drive and
idler shaftso Installed new sump pumps in flotation buildingo Overhauled and rewired starter panel for sub-basement sump pumpso Flotation Tanks #1 to 8 Installed custom fabricated Shear Pin Sprockets assemblies
with safeguardso Overhauled DAF recirculating pump #6, 7 and 8
Digestion Tanks:o Digestion Tanks # 1 4:
- Overhauled mixing pumps #2 and 3, and corrected pump chopping
clearances- Inspected mechanical seals for total eight mixing pumpso Digestion Tanks # 9 12:
- Overhauled two spare gas mixing compressors- Modified four recirculating pump impeller and shaft assemblies to prevent
pumps from pluggingo Digestion Tank # 10: Installed new Level Indicating Transmittero Digestion Tanks # 13 16:
- Overhauled four recirculating pumps and modified pump impeller
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- Transfer pumps for Digestion Tank #13 and 14 were completely overhauled,and its drive coupling assemblies were changed.
- Raw Sludge flow meter and flow indicator / transmitter were installed
- Overhauled pneumatic controllers for knife gate valves- Installed wiring and controls for new gas compressor #2
o Refurbished Digestion Tank #15:- Installed a custom fabricated 32" inspection cover with purging trains- Installed six 8" gas plug valves in gas mixing train- Installed eight 6" knife gate valves in heat exchange heating loop- Installed new gas mixing compressor- Installed custom fabricated supports for valve positioned in gas mixing train
o Digestion Tanks # 19 22:- Installed new cooling water supply connections to six gas mixing
compressors
General:o Installed new lighting in North-South and Main South Tunnels
4.7 Steam System, HVAC & Odour Control (Work Area 6)
Work Area 6 includes the plant-wide steam system, HAVC, and odour control. The followingmaintenance was completed in 2013:
HVAC, Steam & Hot Water System:o Centrifuge process chiller WC1 and WC2 continued maintenance and upgradeso Gas compressor chiller maintenance and repairso Administration Bldg air handling unit maintenance and repairso New flex joints S-6 and S-7 Z Bldgo Continuous routine overhaul of hot water circulating pumps, such as bearings and
sealso Regular safety inspection and testing done on hot water boilers #1, 2, 3 and 6o Insurance inspections done on hot water boilers #2o Maintenance and repair done on central emission monitoring system of hot water
boiler stack
o Regular safety inspection and testing done on steam boilers #19 and 20o Steam Boilers #19:
- Repaired major leak from water tubes- Insurance inspections done
o Safety inspection and testing done on four new boilers in M and T Buildingo Overhauled and pressure test done on safety valves for steam distribution system
Overhauled and pressure test done on safety valves for compressed air distributionsystem
o ABTP training centre renovation installed new air handling equipment with heatand A/C
o New replacement 80' continuous blow down vent line installed
Electrical:o Replaced selected unit heaters
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o New wiring and contactors for EF-6 and EF-7 Z Bldg
o 3-way valves and actuator replacedo ABTP Training center renovations lighting, wiring, and additional equipment were
installed to upgrade connectivity of audio/visual componentso Continue responsibilities for coordinating final commissioning and testing of new
Mobile Generators supplying M and T Bldg.
Instrumentation:o Air-fuel calibrations done on steam boilers #19 and 20, and hot water boilers #1, 2,
and 3o Overhauled boiler #1,2,3, 19, and 20 burnerso All portable gas detectors were calibrated and repaired as requiredo Calibrated water softener control system for steam boilero Overhauled and calibrated feed water regulator for steam boiler 19 and 20o Overhauled and calibratedo Overhauled and calibrated continuous blow down for expansion tanko
Boiler flue gas analyzers for hot water boiler #1 and 2 were replaced and upgraded
4.8 Consumables, Mechnical & Welding, Groundskeeping & Licensed Vehicles(Work Area 7)
Work Area 7 includes consumables, mechanical & welding, grounds keeping, and licensed vehicles.The following maintenance was completed in 2013:
General Maintenance:o All windsocks in the plant were inspected, and any damaged windsocks were
repairedo The windsock and its pole located at the south-east end of the plant were replacedo Inspected, and repaired all overhead cranes and lifting deviceso Inspections and PMs on all fork lift vehicles and riding lawn equipment were
completed, and any damaged ones were repairedo PMs on all licensed vehicles in the plant were completedo Any building roofs were inspected, and any damaged ones were repairedo Lawn mowing and snow removal were completed as requiredo Rail tracks in the plant were regularly inspected, and rail track ties were renewed as
requiredo Maintained existing waste oil storage area, and removed the waste oil from the plant
through a licensed vendero Overhead / garage doors in the plant were regularly inspected and were repaired as
requiredo New storage shed for road salt was built
Electrical & Instrumentation:o Upgraded chlorine leak alarm control circuitso Installed evacuation alarms at North & South gateo Inspection and maintenance of high voltage areas were completedo Light pole fixtures in North parking lot were refurbished, including writingso Upgraded staircase light fixtures in Z Bldg.o Replaced majority of lighting fixtures with energy efficient oneso Expansion of PCS network in Z Bldg.
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o Network installation and upgrade completion in blower building offices
o Biosolid operators were relocated to a new control room
4.9 Disinfection, Plant Water, Elevators (Work Area 8)Work Area 8 includes disinfection, plant water, fuel safety, fire protection and elevators. Thefollowing maintenance was completed in 2013:
Completed preventative maintenance on all Plant water filters, twice a year
Completed preventative maintenance on all Backflow Preventers Inspected and refilled all SCBA units on monthly basis Inspected and serviced all Fire Protection system and equipment Inspected and serviced all Elevators Inspection and maintenance completed on all gas process and fuel equipment
Major overhauled on Gas Control Building Stream #3 (Scrubber, Compressor, and Dryer). Inspection and maintenance completed on disinfection process equipment.
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5.1.5 Sodium Hypochlorite for Disinfection and Odour Control
Sodium hypochlorite consumption for disinfection during 2013 was approximately 958,871 L, adecrease of 69% of the consumption in 2012. Sodium hypochlorite is also used to disinfect plant
water for housekeeping and in the air scrubbers for odour control.
Sodium hypochlorite for disinfection and odour control was purchased at a cost of $151 per 1,000 L,plus applicable taxes.
5.2 Utilities
A summary of utility consumption for the previous three years at Ashbridges Bay Treatment Plant isprovided in Table 9, below.
Table 9: Utility Consumption
Utility 2013 2012 2011Water [m3/ month] 33,121 35,166 34,307
Hydro [kWh / month] 9,960,584 9,560,590 9,631,089
Natural Gas [m3/ month] 414,204 380,479 422,808
5.2.1 Water
Total potable water consumption in 2013 was 397,446 m3. The average unit cost of water per cubicmeter was $2.86. The overall water cost in 2012 was approximately $1,136,728.26.
5.2.2 Hydro
Total energy consumption in 2013 was 119.53M kWh. The average monthly kilowatt usage was 3.4% more than last years usage. The average cost per kilowatt hour was $0.088. The overall hydro cost
in 2013 was approximately $10.5M.
5.2.3 Natural Gas
Total natural gas consumption in 2013 was 4,970,450 m3. The total natural gas cost in 2013 wasapproximately $1.12M.
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6. OPERATIONAL COSTS
Plant operational costs are broken down into five (5) categories: Salaries & Benefits, Materials &Supplies, New Equipment, Services & Rents and Other Charges. Materials & Supplies is furthersegregated into Utilities (power, natural gas and water), Machine & Equipment Parts, Chemicals andOther Materials & Supplies. The total cost of plant operation in 2013 was $45.2 M, a 11% decrease incomparison to the operating costs for 2012. A breakdown of annual operational costs for the previousyear is shown in Table 10. Current year operating costs are illustrated in Figure 1.
Table 10: Operating Costs
Operating Cost 2013 2012
Salaries & Benefits $ 13,951,713 $ 14,829,586
Materials & Supplies
Utilities $ 11,832,478 $ 11,255,073
Machine & Equipment Parts $ 1,515,789 $ 1,066,434Chemicals $ 4,454,660 $ 4,236,451
Other Materials & Supplies $ 1,273,371 $ 2,603,243
New Equipment $ 560,048 $ 439,534
Services & Rents $ 11,171,556 $ 14,578,312
Other Charges $ 409,826 $ 1,548,772TOTAL PROGRAM COST: $ 45,169,442 $ 50,557,405
Figure 1: Ashbridges Bay Treatment Plant Operating Cost Breakdown for 2013
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7. HUMAN RESOURCES
7.1 Staffing
In 2013, the Ashbridges Bay Treatment Plant had 170 employees. Plant Staffing is shown in Table11, below:
Table 11: Plant Staffing
Position Title Number
Plant Manager 1
Senior Engineer 3
Engineers 1
Area Supervisor PO&M 9
Supervisor, Operational Support 1
Electronic Instrumentation Specialist 1
Engineering Technologist Technician 2
Electricians 1
Plant Technicians 31Developmental Plant Technicians 19
Industrial Millwrights 54
EICT 25
Labourers 1
Plant Maintenance Operators 1
Stat Eng 3rdClass 2
Stat Eng 2ndClass 5
Welder 1
Custodian
Support Assistants 3
Materials Management Assistants 2
Wastewater Plant Worker 7
7.2 Occupational Health & Safety
Continuous efforts are made in maintaining a safe working environment at the Ashbridges BayTreatment Plant facility. The Joint Health and Safety Committee (JHSC) assisted management inresolving issues through monthly meetings and Plant Audits.
Plant Health and Safety statistics for the Ashbridges Bay Treatment Plant in 2013 were as follows:
Incident 14First Aid 0Medical Aid 7
Lost Time 7Recurrence 3
Total 31
In 2013, total lost days due to work related injuries was 218 days.
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The following table summarizes the status of operator certification at the Ashbridges Bay TreatmentPlant for 2013.
Table 12: Wastewater Treatment Certificates
Class Level Licensed
Class IV 40
Class III 9
Class II 3
Class I 43
O. I. T. 30
TOTAL 125
7.5 MOE Correspondence
In addition to reports submitted for 8 Odour and 1 noise complaints received at the plant in 2013 andreports submitted for 10 bypasses the following correspondence was submitted to the MOE forABTP.
Date Type Description
February 22, 201310 Day report as per Amended
ECAWritten report re: Release of primaryeffluent at Ashbridges Bay Treatment Plant
March 6, 2013 Response to request forinformation
Response to Matthew Randall Sr.
Environmental Officer, regarding:
Improvements to ventilation and odourcontrol systems at the M and T pumpingstations (construction 2009-2012);
Improvements to the D buildingpreliminary treatment andgrit/screenings handling process andinstallation of a new biofilter with adedicated stack (construction2010-2013);
Improvements to the collection anddispersion system of the odorous airemissions from the aeration tanks.
Replacement of the existing biofilter,aeration tanks upgrades, and majorimprovements to P building preliminaryprocess areas including the replacementthe existing chemical scrubber with abiofilter.
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June 11, 201310 Day report as per Amended
ECAWritten report re: Release of primaryeffluent at Ashbridges Bay Treatment Plant
July 12, 2013
Response to request forinformation from Tessa
Villeneuve Sr. EnvironmentalOfficer
Response to Tessa Villeneuve Sr.Environmental Officer regarding "Bypass"during the July 8thThunderstorm
July 22, 201310 Day report as per Amended
ECAWritten report re: Release of final effluent atAshbridges Bay Treatment Plant
July 16, 2013Response to request for
information regarding Bypassreport # 2013-06
Email, including the Bypass report that wasdue (1 day) was sent to Holie Williams, Sr.Environmental Officer
August 2, 201310 Day report as per Amended
ECAWritten report re: release of Plant Water atAshbridges Bay Treatment Plant.
August 9, 201310 Day report as per Amended
ECAWritten report re: Discharge of pellets atAshbridges Bay Treatment Plant
August 13, 201310 Day report as per Amended
ECAWritten report re: release of primary effluentat Ashbridges Bay Treatment Plant
October 11, 201310 Day report as per Amended
ECA
Written report re: Planned Venting of
Digester Gas at Ashbridges Bay TreatmentPlant
October 21, 201310 Day report as per Amended
ECAWritten report re: Release of influent sewageat Ashbridges Bay Treatment Plant
October 21, 201310 Day report as per Amended
ECAWritten report re: Discharge of pellets atAshbridges Bay Treatment Plant
October 21, 201310 Day report as per Amended
ECAWritten report re: release of primary effluentat Ashbridges Bay Treatment Plant
November 27, 201310 Day report as per Amended
ECAWritten report re: Release of influentsewage at Ashbridges Bay Treatment Plant
January 31, 2013 Director Consent LetterDirector Consent Letter regarding potentialdischarge of Pelletizer Cooling Water toLake Ontario
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April 22, 2013 Director Consent LetterDirector Consent regarding potential releaseof odorous air in the atmosphere
April 30, 2013 Director Consent LetterDirector Consent Letter regarding extensionof potential discharge of Pelletizer CoolingWater to Lake Ontario
May 29, 2013 Director Consent LetterDirector Consent Letter regarding P buildingscrubber shutdown.
June 10, 2013 Director Consent LetterDirector Consent Letter regarding extensionof potential discharge of Pelletizer CoolingWater to Lake Ontario
July 31, 2013 Director Consent LetterDirector Consent Letter regarding extensionof potential release of odorous air in theatmosphere.
September 11, 2013 Director Consent LetterDirector Consent Letter regarding plannedventing of digester gas.
November 7, 2013Director Consent Letter
Director Consent Letter regarding extensionof potential release of odorous air in theatmosphere.
November 7, 2013 Director Consent Letter Director Consent Letter regarding shutdownof the aeration odour control system
April 26, 2013 Notice of Start-upNotice of Start-up - Ashbridges BayTreatment Plant, D Building Odour ControlBiofilter
May 8, 2013 toSeptember 18, 2013
MOE Communal SewageInspection
Various communications with HolieWilliams (Sr. Environmental Officer)regarding the 2013 communal sewageinspection.
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Glossary of Abbreviations
CBOD5 Five-Day Carbonaceous Biological Oxygen Demand
CEU Continuing Education UnitsCFU Colony Forming Units
CSO Combined Sewer Overflow (Tank)DAF Dissolved Air Flotation
E. Coli Escheria ColiHP horsepower
HRT Hydraulic Retention Timekg kilogramkWh Kilowatt-hour
MWh Megawatt-hourm3 cubic metre
mA milliamps
mg/L milligrams per litremL MillilitreML MegalitreMTI Mid-Toronto Interceptor Forcemain
NTTP North Toronto Treatment PlantSS Suspended SolidsTP Total Phosphorus
TS Total SolidsTVS Total Volatile Solids
TWAS Thickened Waste Activated Sludge
g/L micrograms per litreWAS Waste Activated Sludge
Definitions
Percent Removal = 1 Concentration (Final)(%) Concentration (Initial)
Aeration Loading = Influent CBOD5x (Secondary Treatment Volume x RAS Volume)(kg CBOD/ m3 Aeration Capacity) Capacity of Aeration Tanks
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Appendix B
Plant Schematic
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DEGRITTING
SCREENSPRIMARY
SEDIMENTATIONAERATION
FINA
SEDIMENT
BIOSOLIDS
STORAGE
DEWATERING
ANAEROBIC
DIGESTERS
Polymer
Waste ActivateSludge
Return Activated Sludge
INCOMING
SEWERS
Centrate
Process Flow Diagram for Ashbridges Bay Wastewater Treatm
BIO
US
SLUDGE
THICKENING
Ferrous Chloride
Polymer
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Appendix C
Performance Charts
Influent Flows
Influent SS & BOD Concentrations
Influent TKN & Total Phosphorus
Concentrations
Effluent SS & CBOD5Concentrations
Effluent TKN, Total Phosphorus, &
Ammonia Concentrations
Digester Gas Production
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Appendix D
Influent & Effluent Metal Concentrations
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Appendix E
Biosolids Metals Analyses
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Ashbridges Bay T.P. - Summary of B ioso lids Analyses for 2013
TKN 47,100 48,550 47,500 54,900 54,850 48,800 49,800 49,350 52,600 50,300 55,95
Ammonia (N)2 6415 5700 6450 6,895 6030 6,345 6,625 6,520 6,070 5,540 7,015.
Nitrate as N3 < 5.9 < 2.0 < 2.0 < 2.0 < 2.0 < 6.05 < 2.0 < 2.0 < 2.0 < 2.0 < 16.
Nitrite as N3 < 4.1 3.6 5.1 6.8 14.7 9.2 < 6.45 4.15 7.35 8.6 < 17.7
As < 2.0 < 2.0 < 2.0 < 2.0 < 2.13 < 2.25 2.1 2.495 2.33 2.145 2.23
B4 < 12.00 < 12.00 < 12.00 < 12.00 < 12.00 15.5 13.8 22.9 24.3 25.55 21.8
Cd < 1.00 < 1.00 1.03 1.07 1.06 1.14 < 1.01 1.06 1.05 1.01 1.02
Cr 80.85 78.80 69.10 72.50 66.95 144.00 115.00 71.55 83.00 79.25 79.10
Co 4.45 4.87 4.18 4.78 4.68 5.59 5.46 5.31 4.81 4.65 5.02
Cu 1026.00 1025.00 890.50 1047.00 959.50 966.50 886.50 1037.00 1065.00 1060.00 1090.0
Pb 42.15 40.85 37.15 40.05 40.45 47.95 48.85 49.65 49.65 47.10 47.15
Mn4 310 305 265 263 262 274 244 266 263 292.5 302.5
Hg 0.8 0.8 0.6 0.8 0.7 0.7 0.7 0.8 0.9 0.8 0.6
Mo 7.7 7.5 6.4 7.4 7.4 7.0 6.9 7.9 8.1 8.6 9.4
Ni 23.7 23.5 20.7 28.9 23.7 41.7 35.7 26.0 25.3 25.0 26.2
P4 29,400 26,800 23,700 24,850 23,900 23,000 20,350 21,950 23,200 24,200 23,40
K4 1030 1325 1114.5 1465 1365 1805 1630 1600 1490 1,520 1,385
Se 5.765 6.61 5.655 4.8 4.955 4.115 5.4 6.09 5.105 5.545 4.53Zn 789 815 708.5 780.5 757.5 759.5 705 775.5 785.5 758.5 750.5
TS% 28.785 28.345 28.3 27.15 28.05 29.035 28.48 28.485 27.785 27.5 26.25
VS%4 59.55 59.6 60 62.15 61.85 58.33 57.005 59.26 60.99 60.25 62.75
E.Coli5 488,275 7,058,325 713,341 501,849 406,541 2,326,023 516,632 150,907 1,112,103 808,653 489,3
Salmonella6 27.9 2.6 31.7 1.32 451 30.5 2.08 121 15.3 27.1 1.4
1As per MOE regulations for biosolids utilization on agricultural lands
2Ammonia (N) includes ammonia + ammonium
3Analysis by City of Hamilton Lab
4Required for Quebec analysis only
5Results and limit for E.Coli are CFU/g, dry wt, average is geometric mean- analysis by Durham Region Lab
6Analysis by University of Guelph
Note: All values are expressed in mg metal/kg dry weight unless otherwise noted
Where values are less than the method detection limit, half of the limit is used to calculate the annual average
NovMay June July Aug Sept OctJan Feb Mar Apr
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Appendix F
Analytical Testing Summary
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Toronto Water Laboratory LIMS Sample and Result Counts From: 01/01/2013 T o: 12/31/2013 P rinted on: 2/7/2014
Client Number of Samples
Ashbridges Bay Treatment Plant 6236
ALKpHDS
COND
Arsenic
BOD
CBOD
Chlorine
Dioxins
andFurans
ECOLI
Ferric
Chloride
IONS
Mercury
METALS
NH3(asN)
P
pH_
15
Residual
Chlorine
Salmonella
Selenium
Temp
TKNandP
TKN(asN)
Toxicity
TS
TSS
Un-ionized
NH3(asN)
VA
VS
ABTP FE SAMPLE 0 0 0 0 0 0 0 128 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ABTP Pellets 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
BYPASS FINAL EFFLUENT 0 0 0 11 0 0 10 0 100 0 0 10 11 0 0 0 0 0 2 8 0 0 11 0 0 0
CAKE (BIOSOLIDS) 0 54 0 0 0 1 0 0 108 60 572 48 0 0 0 12 54 0 0 45 0 356 0 0 0 3
CENTRATE 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 5 0 0 108 0 0 0
CENTRIFUGE FEED (COMPOSITE) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 110 0 0 0 0
CENTRIFUGE FEED AM (GRAB) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0
DENSITY METER CENTRIFUGE FEED NORTH PUMP (GRAB) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0 0 0 0
FINAL EFFLUENT 36 6 0 368 68 0 79 0 902 12 102 229 364 160 1 0 0 4 3 83 36 0 376 157 0 0
FLOTATION (TWAS) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 297 0 0 0 0
FLOTATION (WAS) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 149 0 0 0
FLOTATION SUBNATANT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 149 0 0 0
NFLUENT 0 6 0 0 0 0 0 0 0 12 102 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
NFLUENT D BUILDING 3 0 362 0 0 0 0 0 10 0 0 54 362 0 0 0 0 0 10 44 0 0 363 0 0 0
NFLUENT P BUILDING 3 0 365 0 0 0 0 0 10 0 0 54 365 0 0 0 0 0 10 44 0 0 366 0 0 0
MIXED LIQUOR 75 0 0 0 0 0 0 0 185 0 0 28 0 0 0 0 0 13 0 25 0 0 553 0 0 0
ML - METER 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 0 0 0PLANT MOISTURE BALANCE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 39 0 0 0 0
POLYMER - DEWATERING TANK 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 43 0 0 0 0
POLYMER - FLOTATION TANK 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 51 0 0 0 0
POLYMER - FLOTATION TANK 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 47 0 0 0 0
POLYMER - FLOTATION TANK 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 39 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 1 0 0 0 0 0 0 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 58 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 10 0 0 0 0 0 0 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 53 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 11 0 0 0 0 0 0 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 51 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 12 0 0 0 0 0 0 12 0 0 0 0 0 0 0 0 0 0 0 0 0 0 49 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 13 0 0 0 0 0 0 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 67 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 14 0 0 0 0 0 0 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 67 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 16 0 0 0 0 0 0 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 65 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 19 0 0 0 0 0 0 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 67 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 2 0 0 0 0 0 0 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 57 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 20 0 0 0 0 0 0 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 67 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 21 0 0 0 0 0 0 12 0 0 0 0 0 0 0 0 0 0 0 0 0 0 61 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 22 0 0 0 0 0 0 12 0 0 0 0 0 0 0 0 0 0 0 0 0 0 67 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 3 0 0 0 0 0 0 12 0 0 0 0 0 0 0 0 0 0 0 0 0 0 52 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 4 0 0 0 0 0 0 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 57 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 5 0 0 0 0 0 0 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 57 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 6 0 0 0 0 0 0 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 57 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 7 0 0 0 0 0 0 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 47 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 8 0 0 0 0 0 0 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 57 0 0 0 0
PRIMARY DIGESTED SLUDGE TRANSFER TANK 9 0 0 0 0 0 0 12 0 0 0 0 0 0 0 0 0 0 0 0 0 0 51 0 0 0 0
PRIMARY DIGESTED SLUDGE VA TANK 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 67 0
PRIMARY DIGESTED SLUDGE VA TANK 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 63 0
PRIMARY DIGESTED SLUDGE VA TANK 11 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 60 0
PRIMARY DIGESTED SLUDGE VA TANK 12 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 54 0PRIMARY DIGESTED SLUDGE VA TANK 13 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 63 0
PRIMARY DIGESTED SLUDGE VA TANK 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 63 0
PRIMARY DIGESTED SLUDGE VA TANK 15 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0
PRIMARY DIGESTED SLUDGE VA TANK 16 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 60 0
PRIMARY DIGESTED SLUDGE VA TANK 19 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 63 0
PRIMARY DIGESTED SLUDGE VA TANK 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 75 0
PRIMARY DIGESTED SLUDGE VA TANK 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 63 0
PRIMARY DIGESTED SLUDGE VA TANK 21 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 63 0
PRIMARY DIGESTED SLUDGE VA TANK 22 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 63 0
PRIMARY DIGESTED SLUDGE VA TANK 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 76 0
PRIMARY DIGESTED SLUDGE VA TANK 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 63 0
PRIMARY DIGESTED SLUDGE VA TANK 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 66 0
PRIMARY DIGESTED SLUDGE VA TANK 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 63 0
PRIMARY DIGESTED SLUDGE VA TANK 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 69 0
PRIMARY DIGESTED SLUDGE VA TANK 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 66 0
PRIMARY DIGESTED SLUDGE VA TANK 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 60 0
PRIMARY EFFLUENT D BUILDING 3 0 0 134 0 0 0 0 20 0 0 6 0 0 0 0 0 0 0 6 0 0 242 0 0 0
PRIMARY EFFLUENT N & S 0 0 0 45 0 0 0 0 34 0 0 5 0 0 0 0 0 0 0 5 0 0 132 0 0 0
PRIMARY EFFLUENT P BUILDING 7-9 3 0 0 1 0 0 0 0 10 0 0 1 0 0 0 0 0 0 0 1 0 0 1 0 0 0
RAS - METER 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 0 0 0
RAW SLUDGE D BUILDING 10-12 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 297 0 0 0 0
RAW SLUDGE NEW P.S. 7-9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 303 0 0 0 0
RAW SLUDGE OLD P.S. 1-6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 293 0 0 0 0
Total 123 66 727 559 68 2 345 128 1,379 84 776 440 1,102 160 1 12 54 17 25 266 36 2,989 2,472 157 1,223 3
ons include: Cl, SO4, NO3, NO2, Br, Ca, Mg, Na, K
Metals by ICP include: Cd, Cr, Cu, Ni, Pb, Zn, Al, Mn, Fe, B
Volatlie Total Solids (VS) are done on 80% of Total Solids, Volatile Suspend Solids (VSS) are done on 2% of the Total Suspended Solids samples.
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