2014 Annual Wastewater Report

Transcription

1 214 Annual Wastewater Report Mar 6, 215 v.1.

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3 214 Annual Wastewater Report Table of Contents REPORTS PAGE Wastewater Capital Spending Overview 1 Wastewater North Wastewater South Lift Stations 4 Sludge Haulage Wastewater Release Summary Report 5 WASTEWATER TREATMENT PLANTS Azilda Plant Performance and Flow Summary 7 Azilda Waste Sludge Analysis 8 Chelmsford Plant Performance and Flow Summary 9 Chelmsford Waste Sludge Analysis 1 Coniston Plant Performance and Flow Summary 11 Coniston Waste Sludge Analysis 12 Dowling Plant Performance and Flow Summary 13 Dowling Waste Sludge Analysis 14 Falconbridge Plant Performance and Flow Summary 15 Levack Plant Performance and Flow Summary 16 Levack Waste Sludge Analysis 17 Lively Plant Performance and Flow Summary 18 Lively Waste Sludge Analysis 19 Sudbury Plant Performance and Flow Summary 2 Sudbury Waste Sludge Analysis 21 Sudbury WWTP Raw and Effluent Metal Analysis 22 Valley East Plant Performance and Flow Summary 23 Valley East Waste Sludge Analysis 24 Walden Plant Performance and Flow Summary 25 Walden Waste Sludge Analysis 26 LAGOONS Capreol Lagoon Performance and Lagoon Flow Summary 27 Capreol Lagoon Groundwater Monitoring Wells 28 Vermillion River Sampling: Upstream and Downstream of the 29 Capreol Lagoon Capreol Lagoon: Ground/Surface Water Levels 3 Chelmsford Lagoon Performance Summary and Lagoon Flow 31 Summary Wahnapitae Lagoon Performance and Lagoon Flow Summary 32

4 WASTEWATER CAPITAL SPENDING OVERVIEW Several capital improvement projects were undertaken for 214. Projects that ran across most CGS Wastewater facilities included: Various plant energy optimization studies; $11,, Various pump replacements; $2,, SCADA plus Instrumentation and Control Design Standards and Upgrades; $247,, Various miscellaneous plant repairs; $55,, Various Sanitary Sewer Re-lining projects; $142,, Completion of various Condition Based infrastructure replacements; $1,867,6, Project started in December 213 was completed in 214 to replace the force main in the north cell of the Capreol lagoon; $265,, Sudbury WWTP headhouse upgrades for 214; $7,455,, Various Lift Station upgrades; $8,, Sludge Transfer Station Forcemain upgrades; $37,. WASTEWATER NORTH AZILDA WWTP Process was fair all year. Various cleaning of equipment and rag removal kept process going. Primary bypassing in April and May due to high flows from rain and spring runoff, and in August, October and November due to heavy rains. Projects: Preliminary meetings were held with city engineers and consultants to install separating wall in aeration tank so plant can be taken down for maintenance. New grating was ordered for raw channels and channels were cleaned by Vactor. CHELMSFORD WPCP Good process all year. Primary by-passing in October and November due to heavy rains. Projects: Removed separating walls from C plant Aeration tanks Installation of fine bubble diffusers in A and B plants. Switched over from B plant to A plant. PLC upgrades ongoing C plant clarifier gearing/chain replacement ongoing UV system inspection conducted by system vendor DOWLING WWTP Good process all year. Projects: General maintenance around plant. LEVACK WWTP Good process all year. Projects: Page 1 of 32

5 General maintenance around plant. VALLEY EAST WWTP Good process all year. Projects: Continue concrete repairs. Drive replaced on primary clarifier. Replaced raw sewage pump #3. Received approval to formally test paracetic acid as a disinfectant. Study will begin in New Year. CAPREOL LAGOON Good process all year. Exceedances reported for phosphorus and TKN due in large part to short circuiting resulting from breached force main prior to final discharge point. Lab results since force main was replaced are favorable and we expect compliance for 215 once we have a full year of results. The force main from the splitter chamber to Vermillion Lift Station was visually inspected by camera. CHELMSFORD LAGOON The Chelmsford Lagoon is used for storm retention of excess flows to limit the influent to the Chelmsford plant during high rain events and prevent primary bypasses of the plant. Flow was diverted to the lagoon during a storm event in April that was impacted by late-spring runoff. No other problems in operation were noted for these lagoons, and no major projects were undertaken. WASTEWATER SOUTH CONISTON WPCP Process good most of the year. There were plant bypasses in April due to rain and spring runoff, and in October, November and December due to heavy rains. Projects: Total overhaul of grit air lift system. FALCONBRIDGE WWTP The Falconbridge plant had a good process all year. LIVELY WWTP The Lively plant process was good all year. There were flow bypasses at various times throughout the year due to spring runoff and a record setting rainfall for the year. Projects: General maintenance around plant. Bypassed entire flow of plant to Walden plant in early fall for approximately a month in order to take down clarifier and aeration tank for cleaning and inspection. SUDBURY WWTP Head house upgrade project and Biosolids construction on going, New system-wide approval document received in the spring, necessitating some changes in thinking and definitions with regard to wastewater releases, and a resultant increase in reports due to Page 2 of 32

6 releases resulting from lowered treatment capacity at the Sudbury Plant. All Sudbury systems and plants are now operating under the same parameters. Projects: Head house grit vortex construction/upgrade, Biosolids/septic/sludge receiving station construction Routine maintenance to 6 Final Clarifiers and mixed liquor valves to clarifiers for maximize flows. Replaced diffuser membranes in #1 aeration cell Continued process optimization strategies, to include; raw sewage pumping, gate control. Problems One head house train shut down IOT accommodate south grit vortex construction resulting in max day flow of 8, M 3 treatment One supernatant tank and sludge tank holding level reduced IOT accommodate new Biosolids/septic/sludge project caused problems with sludge thickening and sludge retention in aeration/clarifiers resulting in higher than normal consumption of ferric sulphate for phosphorous removal. High solids also demanded high amounts of air IOT keep DO at required level therefore we were required to run 55 hp blowers vice 25 hp for most of the summer and early fall. Wastewater releases were reported in all but one month from April to December, 214 many resulted from reductions in treatment capacity due to maintenance and construction. One odor concern for the Plant and two concerns for the Tailings Ponds were received during the summer months. WALDEN WWTP Process was fairly good all year. Due to suspected oil/petroleum liquids in the influent, maintaining good process was challenging. There were plant bypasses in April and May due to rain and spring runoff, and in October and November due to heavy rains. Projects Removed one log from bypass channel to ease flow going through plant and prevent flooding clarifiers and aeration system. GARSON LAGOON Drained lagoon back to SWWTP as required No odor complaints Projects Cleaned up lagoon road through brush cutting and tree removal. Problems New valve chamber has been problematic since construction, contractors to rectify. WAHNAPITAE LAGOON Good process all year No odour complaints received from this facility this year. Problems Growth of cattails and reeds in Cells 1 & 2 is causing some concern about ongoing capacity: Cell #1 is badly overgrown. The growth caused a problem with spring discharge of Cell #1: dead growth blocked the discharge works, requiring repair work on the valve to allow discharge of enough effluent to continue the cell s use. Page 3 of 32

7 Last year s cold weather/ long winter caused spring discharge to start abnormally late; and the problems with Cell #1 extended the full process even further. LIFT STATIONS Projects Jacob Lift Station completed upgrades consisting of a new emergency generator, upgraded electrical service, new PLC, controls and new pumps. Replaced piece of force main at Loach s Road Lift Station. Completed installation of emergency generator and new pumps at Laurier Lift Station that came from Coniston Plant. Problems Many pumps were in need of repair or had to be replaced due to annual record rainfall. Pumps repaired for Laurier, Main, Walford East, Sludge Transfer and Countryside Lift Stations. Pumps replaced for Kincora and Ester. SLUDGE HAULAGE All Biosolids generated at the City of Greater Sudbury Wastewater facilities are disposed of at the Vale Tailing Ponds in Walden, Ontario. Projects Replaced force main from valve chamber to tailings pond. Hired contractor to lift force main off bottom of tailings pond as the raft had smashed in the winter ice. Contractor replaced barge and replaced raft. Page 4 of 32

8 214 Wastewater Release Summary Report Name Date Location of Event Type of Occurrence Receiving Water Duration (hrs) Volume (m3) Azilda 15 Oct 14 LS Main Sanitary Sewer Overflow Whitson River Aug 14 Azilda WWTP Primary By Pass Whitson River Apr 14 Laurier Street Other Whitewater Lake , May 14 Laurier Street Primary By Pass Ditch to Whitewater 15 4, Aug 14 Laurier Lift Station Primary By Pass Ditch to Whitewater , Oct 14 Laurier LS Sanitary Sewer Overflow Whitewater Lake 25 7, Oct 14 Azilda WWTP Primary By Pass Oct 14 Landry LS Other Whitewater lake Apr St. Agnes Secondary By Pass Whitson River 3 2, Nov 14 Azilda WWTP Plant By Pass Whitson River 14 3,56. Chelmsford 24 Nov 14 Chelmsford WWTP Plant By Pass Whitson River 72 1,4. 28 Jun 14 Belanger Lift Station Sanitary Sewer Overflow Oct 14 Chelmsford WWTP Plant Overflow 8, Oct 14 Belanger LS Other Whitson River Coniston 14 Apr 14 Coniston Government Ro Other Coniston Creek 14 3,9. 15 Oct 14 Coniston WWTP Plant By Pass Coniston Creek Dec 14 Coniston WWTP Plant By Pass Coniston Creek Nov 14 Coniston S.T.P. Plant By Pass Coniston Creek 43 1,9. 14 Apr 14 Coniston Government Ro Secondary By Pass Coniston Creek ,81. Copper Cliff 14 Apr 14 Nickel Street Other Copper Cliff Creek 1 2,2. Garson 14 Apr 14 Garson LS Other Coniston Creek Jul Garson Coniston Roa Force Main Break Coniston Creek 1 6. Lively 15 Oct 14 Lively STP Plant By Pass Meatbird Creek 41 5, Apr 14 Lively WWTP Primary By Pass Meatbird Creek , Nov 14 Lively WWTP Plant By Pass 72 5, Apr 14 Anderson Street Other Meatbird Creek 11 3,8. 15 May 14 Lively WWTP Primary By Pass Meatbird Creek 6.5 6, Oct 14 Lively STP Plant By Pass Meatbird Creek 96 4,79. Sudbury 14 Apr 14 Moonlight LS Other Field Ditch to Rumfor Apr 14 Elizabeth & David Street Sanitary Sewer Overflow Ramsey Lake 3 6 Apr Marcel Sanitary Sewer Overflow MH# Robinso May 14 Sudbury Plant Primary By Pass Junction Creek 16 47, Jan 14 Behind 17 Mary Street Ga Sanitary Sewer Overflow Ditch Off Orell Street 1 14 Apr 14 St Clair Street Other Junction Creek 16 4,. 14 Apr Kelly Lake Road Secondary By Pass Junction Creek ,2. 24 Apr Lasalle Sanitary Sewer Overflow Apr Elizabella Other Junction Creek Apr Fourth Avenue Sanitary Sewer Overflow Ramsey Lake Sep 14 Sudbury WWTP Other Junction Creek ,25. Page 5 of 32

9 Name Date Location of Event Type of Occurrence Receiving Water Duration (hrs) Volume (m3) 5 Nov 14 Sudbury WWTP Plant By Pass Junction Creek Oct 14 Sudbury WWTP Plant By Pass Junction Creek , Jul 14 Sudbury WWTP Other Nov 14 Sudbury WWTP Plant By Pass Junction Creek Nov 14 Sudbury WWTP Plant By Pass Junction Creek 21 18,5. 28 Oct 14 Sudbury WWTP Plant By Pass Junction Creek 11 4,91. 3 Sep 14 Sudbury WWTP Plant By pass Junction Creek Oct 14 Sudbury WWTP Plant By pass Junction Creek ,3. 12 Sep 14 Sudbury WWTP Junction Creek ,9. 1 Sep 14 Sudbury WWTP Other Junction Creek 16 6, Dec 14 Sanitary Sewer Overflow None Aug 14 Sudbury WWTP Secondary By Pass Junction Creek 37 1, May 14 Moonlight LS Primary By Pass Field ditch to Romfor Oct 14 Sudbury WWTP Plant By Pass Junction Creek ,95. Valley East 22 Apr 14 Valley East W.W.T.P. Other Whitson River Walden 24 Nov 14 Walden STP Plant By Pass 36 5, May 14 Walden WWTP 1425 Reg. Plant Overflow Simon Lake Waterwa Jan 14 Simon W. Lift Station Other Simon Lake May 14 WWTP Primary By Pass Junction Creek , Apr 14 Walden STP Primary By Pass Junction Creek ,5. 15 Oct 14 Walden WWTP Plant By Pass Junction Creek Page 6 of 32

10 214 Azilda Wastewater Treatment Plant Performance Flows BOD 5 CBOD 5 Total Suspended Solids Total Phosphorus Total Ammonia Un-Ionized TKN Nitrite Nitrate ph Alkalinity Sludge Chlorine E.Coli Month Total Avg Day Max Day Raw Effluent Loading Raw Effluent Loading Raw Effluent Loading Raw Effluent Loading Ammonia Raw Effluent Effluent Effluent Raw Effluent Total Conc. Total Residual Geomean m 3 m 3 /d m 3 Raw Effluent /d mg/l mg/l kg/d mg/l mg/l kg/d mg/l mg/l kg/d mg/l mg/l kg/d µg/l mg/l mg/l mg/l mg/l mg/l mg/l m 3 % Kg mg/l # Col./1mL January February March N/A April N/A May June July August September October November December Total Average Plant Type: Extended Aeration Design Capacity: 33 m 3 /day Population Served: 4, Flow (m3/day) Average Daily Flow (m3/day) Maximum Daily Flow (m3/day) Compliance Parameters: Conc. Loading CBOD 5 1 mg/l 33 kg/day } *Monthly Average TSS 1 mg/l 33 kg/day (Concentration) Total Phosphorus.6 mg/l 2. kg/day *Annual Average Total Ammonia (as N) 5 mg/l 16.5 kg/day (Loading) ph 6. to 9.5 inclusive, at all times E.Coli 2 col/1 ml Monthly Geometric Mean 214 Page 7 of 32

11 214 Azilda Wastewater Treatment Plant Waste Sludge Analysis Parameter (mg/l) January February March April May June July August September October November December Average Ammonia (as N) Nitrate (as N) Nitrite (as N) Potassium TKN Total Phosphorus Total Solids Arsenic Cadmium Chromium Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Zinc Sample Date Dec.3/13 Feb.4/14 Mar.5/14 Apr.9/14 May 6/14 June 4/14 July 1/14 Aug.6/14 Sep.3/14 Oct.8/14 Nov.19/14 Dec.3/14 Page 8 of 32

12 214 Chelmsford Wastewater Treatment Plant Performance Flows CBOD 5 Total Suspended Solids Total Phosphorus Total Ammonia Un-Ionized TKN Nitrite Nitrate ph Alkalinity Sludge E.Coli Month Total Avg Day Max Day Raw Effluent Loading Raw Effluent Loading Raw Effluent Loading Effluent Loading Ammonia Raw Effluent Effluent Effluent Raw Effluent Total Conc. Geomean m 3 m 3 /d m 3 Raw Effluent /d mg/l mg/l kg/d mg/l mg/l kg/d mg/l mg/l kg/d mg/l kg/d µg/l mg/l mg/l mg/l mg/l mg/l mg/l m 3 % # Col./1mL January February March April May June July August September October November December Total Average Summer Winter Flow (m3/day) Average Daily Flow (m3/day) Maximum Daily Flow (m3/day) Plant Type: Extended Aeration w/modified activated sludge for denitrification Design Capacity: 71 m 3 /day Population Served: 7,147 (Plant& Lagoon) Compliance Parameters: Summer - May 1 to October 31 Conc. Loading CBOD 5 7. mg/l 49.7 kg/day Seasonal Average TSS 7. mg/l 49.7 kg/day Seasonal Average Total Phosphorus.3 mg/l 2.13 kg/day Monthly Average Total Ammonia as N 2. mg/l 14.2 kg/day Seasonal Average E.Coli 2 col/1 ml Monthly Geometric Mean UV Disinfection turned on. Winter - November 1 to April 3 Conc. Loading CBOD mg/l 16.5 kg/day Seasonal Average TSS 15. mg/l 16.5 kg/day Seasonal Average Total Phosphorus.5 mg/l 3.55 kg/day Monthly Average Total Ammonia as N 4. mg/l 28.4 kg/day Seasonal Average UV Disinfection turned off. Page 9 of 32

13 214 Chelmsford Wastewater Treatment Plant Waste Sludge Analysis Parameter (mg/l) January February March April May June July August September October November December Average Ammonia (as N) Nitrate (as N) Nitrite (as N) Potassium TKN Total Phosphorus Total Solids Arsenic Cadmium Chromium Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Zinc Sample Date Jan.8/14 Feb.5/14 Mar.5/14 Apr.9/14 May 7/14 June 4/14 July 9/14 Aug.6/14 Sep.3/14 Oct.8/14 Nov.5/14 Dec.3/14 Page 1 of 32

14 214 Coniston Wastewater Treatment Plant Performance Flows BOD 5 Total Suspended Solids Total Phosphorus Total Ammonia Un-Ionized TKN Nitrite Nitrate ph Alkalinity Sludge Chlorine E.Coli Month Total Avg Day Max Day Raw Effluent Loading Raw Effluent Loading Raw Effluent Loading Effluent Loading Ammonia Effluent Effluent Effluent Raw Effluent Total Conc. Total Residual Ann.Geomean m 3 m 3 /d m 3 Raw Effluent /d mg/l mg/l kg/d mg/l mg/l kg/d mg/l mg/l kg/d mg/l kg/d µg/l mg/l mg/l mg/l mg/l mg/l m 3 % Kg mg/l # Col./1mL January February March April May June July August September October N/A November December Total Average Flow (m3/day) Average Daily Flow (m3/day) Maximum Daily Flow (m3/day) Plant Type: Extended Aeration Design Capacity: 3 m 3 /day Population Served: 2,9 Compliance Parameters: Conc. Loading BOD 5 2 mg/l 35 kg/day * TSS 2 mg/l 35 kg/day * E.Coli 2 col/1 ml Annual Geometric Mean * Average of any 12 consecutive month period Page 11 of 32

15 214 Coniston Wastewater Treatment Plant Waste Sludge Analysis Parameter (mg/l) January February March April May June July August September October November December Average Ammonia (as N) Nitrate (as N) Nitrite (as N) Potassium TKN Total Phosphorus Total Solids Arsenic Cadmium Chromium Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Zinc Sample Date Jan.9/14 Feb.5/14 Mar.5/14 Apr.2/14 May 14/14 June 4/14 July 16/14 Aug.2/14 Sep.3/14 Oct.2/14 Nov.6/14 Dec.4/14 Page 12 of 32

16 214 Dowling Wastewater Treatment Plant Performance Flows CBOD 5 Total Suspended Solids Total Phosphorus Total Ammonia Un-Ionized TKN Nitrite Nitrate ph Alkalinity Sludge Chlorine E.Coli Month Total Avg Day Max Day Raw Effluent Loading Raw Effluent Loading Raw Effluent Loading Effluent Loading Ammonia Effluent Effluent Effluent Raw Effluent Total Conc. Total Residual Geomean m 3 m 3 /d m 3 Raw Effluent /d mg/l mg/l kg/d mg/l mg/l kg/d mg/l mg/l kg/d mg/l kg/d µg/l mg/l mg/l mg/l mg/l mg/l m 3 % Kg mg/l # Col./1mL January February March April May June July August September October November December Total Average Flow (m3/day) Average Daily Flow (m3/day) Maximum Daily Flow (m3/day) Plant Type: Extended Aeration Design Capacity: 32 m 3 /day Population Served: 1,857 Compliance Parameters: Conc. Loading CBOD 5 25 mg/l 8 kg/day Annual Average TSS 25 mg/l 8 kg/day Annual Average Total Phosphorus 1. mg/l 3.2 kg/day Annual Average E.Coli 2 col/1 ml Monthly Geometric Mean 214 Page 13 of 32

17 214 Dowling Wastewater Treatment Plant Waste Sludge Analysis Parameter (mg/l) January February March April May June July August September October November December Average Ammonia (as N) Nitrate (as N) Nitrite (as N) Potassium TKN Total Phosphorus Total Solids Arsenic Cadmium Chromium Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Zinc Sample Date Jan.9/14 Feb.12/14 Mar.6/14 Apr.16/14 May 7/14 June 4/14 July 1/14 Aug.7/14 Sep.4/14 Oct.9/14 Nov.6/14 Dec.3/14 Page 14 of 32

18 214 Falconbridge Sewage Treatment Plant Performance Flows BOD 5 Total Suspended Solids Total Phosphorus Total Ammonia Un-Ionized TKN Nitrite Nitrate ph E.Coli Month Total Avg Day Max Day Raw Effluent Loading Raw Effluent Loading Raw Effluent Loading Effluent Loading Ammonia Effluent Effluent Effluent Average m 3 m 3 /d m 3 Raw Effluent /d mg/l mg/l kg/d mg/l mg/l kg/d mg/l mg/l kg/d mg/l kg/d µg/l mg/l mg/l mg/l # Col./1mL January February March N/A April May June July August September October N/A November December Total Average Flow (m3/day) Average Daily Flow (m3/day) Plant Type: Trickling Filter Design Capacity: 99 m 3 /day Population Served: 754 Compliance Parameters: Conc. Loading BOD 5 15 mg/l 46 kg/day Annual Average TSS 15 mg/l 46 kg/day Annual Average Maximum Daily Flow (m3/day). 214 Page 15 of 32

19 214 Levack Wastewater Treatment Plant Performance Flows CBOD 5 Total Suspended Solids Total Phosphorus Total Ammonia Un-Ionized TKN Nitrite Nitrate ph Alkalinity Sludge Chlorine E.Coli Month Total Avg Day Max Day Raw Effluent Loading Raw Effluent Loading Raw Effluent Loading Raw Effluent Loading Ammonia Raw Effluent Effluent Effluent Raw Effluent Total Conc. Total Residual Geomean m 3 m 3 /d m 3 Raw Effluent /d mg/l mg/l kg/d mg/l mg/l kg/d mg/l mg/l kg/d mg/l mg/l kg/d µg/l mg/l mg/l mg/l mg/l mg/l mg/l m 3 % Kg mg/l # Col./1mL January February March April May June July August September October November December N/A N/A N/A N/A N/A Total Average Flow (m3/day) Average Daily Flow (m3/day) Maximum Daily Flow (m3/day) Plant Type: Extended Aeration Design Capacity: 227 m 3 /day Population Served: 2,32 Compliance Parameters: Conc. Loading CBOD 5 25 mg/l kg/day Annual Average TSS 25 mg/l kg/day Annual Average Total Phosphorus 1. mg/l 3.1 kg/day Monthly Average ph 6. to 9.5 inclusive, at all times E.Coli 2 col/1 ml Monthly Geometric Mean 214 Page 16 of 32

20 214 Levack Wastewater Treatment Plant Waste Sludge Analysis Parameter (mg/l) January February March April May June July August September October November December Average Ammonia (as N) Nitrate (as N) Nitrite (as N) Potassium TKN Total Phosphorus Total Solids Arsenic Cadmium Chromium Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Zinc Sample Date Jan.14/14 Feb.4/14 Mar.5/14 Apr.8/14 May 6/14 June 4/14 July 1/14 Aug.12/14 Sept.9/14 Oct.8/14 Nov.4/14 Dec.2/14 Page 17 of 32

21 214 Lively Wastewater Treatment Plant Performance Flows BOD 5 CBOD 5 Total Suspended Solids Total Phosphorus Total Ammonia Un-Ionized TKN Nitrite Nitrate ph Alkalinity Sludge Chlorine E.Coli Month Total Avg Day Max Day Diverted Raw Effluent Loading Raw Effluent Loading Raw Effluent Loading Effluent Loading Ammonia Raw Effluent Effluent Effluent Raw Effluent Total Conc. Total Residual Geomean m 3 m 3 /d m 3 /d m 3 Raw Effluent mg/l mg/l kg/d mg/l mg/l kg/d mg/l mg/l kg/d mg/l kg/d µg/l mg/l mg/l mg/l mg/l mg/l mg/l m 3 % Kg mg/l # Col./1mL January February March April May June July August September October N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A November December Total Average Plant Type: Extended Aeration Design Capacity: 16 m 3 /day Population Served: 2, Flow (m3/day) Average Daily Flow (m3/day) Compliance Parameters: Conc. Loading BOD 5 25 mg/l 4 kg/day * TSS 25 mg/l 4 kg/day * Total Phosphorus 1. mg/l 1.6 kg/day Monthly Average E.Coli 2 col/1 ml Monthly Geometric Mean Maximum Daily Flow (m3/day) * Annual average of any consecutive 12 month period. 214 Page 18 of 32

22 214 Lively Wastewater Treatment Plant Waste Sludge Analysis Parameter (mg/l) January February March April May June July August September October November December Average Ammonia (as N) Nitrate (as N) Nitrite (as N) Potassium TKN Total Phosphorus Total Solids Arsenic Cadmium Chromium Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Zinc Sample Date Jan.8/14 Feb.5/14 Mar.4/14 Apr.9/14 May 6/14 June 4/14 July 16/14 Aug.5/14 Sept.9/14 N/A Nov.17/14 Dec.3/14 Page 19 of 32

23 214 Sudbury Wastewater Treatment Plant Performance Flows CBOD 5 Total Suspended Solids Total Phosphorus Total Ammonia Un-Ionized TKN Nitrite Nitrate ph Alkalinity Sludge Chlorine Dechlorination E.Coli Month Total Avg Day Max Day Raw Effluent Loading Raw Effluent Loading Raw Effluent Loading Effluent Loading Ammonia Raw Effluent Effluent Effluent Raw Effluent Total Conc. Total Residual Total Loading Geomean m 3 m 3 /d m 3 Raw Effluent /d mg/l mg/l kg/d mg/l mg/l kg/d mg/l mg/l kg/d mg/l kg/d µg/l mg/l mg/l mg/l mg/l mg/l mg/l m 3 % Kg mg/l mg/l Kg/day # Col./1mL January February March April May June July August September October November December Total Average Flow (m3/day) Average Daily Flow (m3/day) Maximum Daily Flow (m3/day) Plant Type: High Rate Design Capacity: m 3 /day Population Served: 8469 Compliance Parameters: Conc. Loading CBOD 5 25 mg/l Annual Average TSS 25 mg/l Annual Average Total Phosphorus 1. mg/l 79.6 kg Monthly Average (Oct.-May) Total Phosphorus.5 mg/l 39.8 kg Monthly Average (June-Sept.) E.Coli 2 col/1 ml Monthly Geometric Mean ph 6. to 9.5 inclusive, at all times Dechlorination total chlorine residual.2 mg/l, 1.6 kg/l, Monthly Average 214 Page 2 of 32

24 214 Sudbury Wastewater Treatment Plant Waste Sludge Analysis Parameter (mg/l) January February March April May June July August September October November December Average Ammonia (as N) Nitrate (as N) Nitrite (as N) Potassium TKN Total Phosphorus Total Solids Arsenic Cadmium Chromium Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Zinc Sample Date Jan.2/14 Feb.5/14 Mar.5/14 Apr.3/14 May 7/14 June 4/14 July 1/14 Aug.6/14 Sep.3/14 Oct.8/14 Nov.5/14 Dec.3/14 Page 21 of 32

25 214 Sudbury Wastewater Treatment Plant - Raw & Effluent Metals Analysis Parameter (mg/l) Location January February March April May June July August September October November December Average Arsenic Cadmium Chromium Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Zinc Raw Raw Raw Raw Raw Raw Raw Raw Raw Raw Raw Effluent Effluent Effluent Effluent Effluent Effluent Effluent Effluent Effluent Effluent Effluent Page 22 of 32

26 Month 214 Valley East Wastewater Treatment Plant Performance Flows CBOD 5 Total Suspended Solids Total Phosphorus Total Ammonia Un-Ionized TKN Nitrite Nitrate ph Alkalinity Sludge Chlorine E.Coli Total Avg Day Max Day Raw Effluent Loading Raw Effluent Loading Raw Effluent Loading Effluent Loading Ammonia Raw Effluent Effluent Effluent Raw Effluent Total Conc. Total Residual Geomean Raw Effluent m 3 m 3 /d m 3 /d mg/l mg/l kg/d mg/l mg/l kg/d mg/l mg/l kg/d mg/l kg/d µg/l mg/l mg/l mg/l mg/l mg/l mg/l m 3 % Kg mg/l # Col./1mL January February March April May June N/A July August September October November N/A N/A December Total Average Flow (m3/day) Average Daily Flow (m3/day) Maximum Daily Flow (m3/day) Plant Type: Extended Aeration Design Capacity: 11,4 m 3 /day Population Served: 17,365 Compliance Parameters: Conc. Loading CBOD 5 25 mg/l 284 kg/day Annual Average TSS 25 mg/l 284 kg/day Annual Average Total Phosphorus 1. mg/l 11.4 kg/day Monthly Average ph 6. to 9.5 inclusive, at all times E.Coli 2 col/1 ml Monthly Geometric Mean 214 Page 23 of 32

27 214 Valley East Wastewater Treatment Plant Waste Sludge Analysis Parameter (mg/l) January February March April May June July August September October November December Average Ammonia (as N) Nitrate (as N) Nitrite (as N) Potassium TKN Total Phosphorus Total Solids Arsenic Cadmium Chromium Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Zinc Sample Date Jan.8/14 Feb.5/14 Mar.19/14 Apr.9/14 May 7/14 Jun. 11/14 July 2/14 Aug.6/14 Sep.3/14 Oct.1/14 Nov.19/14 Dec.3/14 Page 24 of 32

28 213 W 214 Walden Wastewater Treatment Plant Performance Flows BOD 5 CBOD 5 Total Suspended Solids Total Phosphorus Total Ammonia Un-Ionized TKN Nitrite Nitrate ph Alkalinity Sludge Chlorine E.Coli Month Total Avg Day Max Day Raw Effluent Loading Raw Effluent Loading Raw Effluent Loading Effluent Loading Ammonia Raw Effluent Effluent Effluent Raw Effluent Total Conc. Total Residual Geomean m 3 m 3 /d m 3 Raw Effluent /d mg/l mg/l kg/d mg/l mg/l kg/d mg/l mg/l kg/d mg/l kg/d µg/l mg/l mg/l mg/l mg/l mg/l mg/l m 3 % Kg mg/l # Col./1mL January February March April May June July August September October November December Total Average Plant Type: Extended Aeration Design Capacity: 45 m 3 /day Population Served: 3, Flow (m3/day) Average Daily Flow (m3/day) Maximum Daily Flow (m3/day) Compliance Parameters: CBOD 5 25 mg/l kg/day Annual Average TSS 25 mg/l kg/day Annual Average Total Phosphorus 1. mg/l 4.5 kg/day Monthly Average E.Coli 2 col/1 ml Monthly Geometric Mean 214 Page 25 of 32

29 214 Walden Wastewater Treatment Plant Waste Sludge Analysis Parameter (mg/l) January February March April May June July August September October November December Average Ammonia (as N) Nitrate (as N) Nitrite (as N) Potassium TKN Total Phosphorus Total Solids Arsenic Cadmium Chromium Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Zinc Sample Date Jan.8/14 Feb.5/14 Mar.5/14 Apr.9/14 May 7/14 June 4/14 July 16/14 Aug.5/14 Sep.1/14 Oct.8/14 Nov.13/14 Dec.3/14 Page 26 of 32