CITY OF LONDON ENVIRONMENTAL & ENGINEERING SERVICES DEPARTMENT WASTEWATER TREATMENT OPERATIONS GREENWAY POLLUTION CONTROL CENTRE 2013 ANNUAL REPORT

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1 CITY OF LONDON ENVIRONMENTAL & ENGINEERING SERVICES DEPARTMENT WASTEWATER TREATMENT OPERATIONS GREENWAY POLLUTION CONTROL CENTRE 2013 ANNUAL REPORT FEBRUARY 2014

2 SUMMARY This annual report is in response to requirements under amended Certificate of Approval to Operate # SUPTV dated April 24, 2012 for the Greenway Pollution Control Centre. GREENWAY POLLUTION CONTROL CENTRE a) A summary and interpretation of all monitoring data and a comparison to the effluent limits outlined in Condition 7, including an overview of the success and adequacy of the Works; The monitoring data is included in the tables and graphs of the report. There were three monthly average concentrations and two loading compliance exceedences in In April 2013 there was an event from April 8 th to 12 th that produced 80.9 mm rainfall. This is the equivalent to one month s rainfall in 5 days. This rainfall event was the cause of the violations for suspended solids and phosphorous loading and concentration limit exceedences (four of the five compliance exceedences in 2013). The plant is rated at 152,175 m3/d and on April 10th, 2013 the flow through the plant was 223,554 m3/d with a peak flow of 281,452 m3/d. The raw bypass was 13,149 m3/d on April 10, 2013 and the secondary by-pass was 47,723 m3/d. The raw by-pass and the secondary by-pass are not included in the plant flows. The total phosphorous (4.24 mg/l) and the total suspended solids (227 mg/l) results for April 10th were the reason for the monthly average exceedences. The plant effluent sample for April 10, 2013 includes water from the plant, raw bypass and the secondary bypass flows. The high flows caused poor settling and bulking of the final clarifiers, the raw bypass includes high suspended solids due to scouring of the sewer lines and the secondary bypass had higher levels of suspended solids. The total phosphorous is related to the high suspended solids as well. Due to the high flows and high concentrations the suspended solids and total phosphorous loading compliance limits were exceeded. The July 2013 monthly average for total phosphorous was 0.78 mg/l. The monthly limit for total phosphorous is 0.75 mg/l. The raw total phosphorous increased around July 14, 2013 to 12 mg/l which is about double the average of 6.3 mg/l for the first half of Raw total phosphorous levels started to come down but then spiked again around July 22, 2013 to 14.9 mg/l. The July monthly average for total phosphorous was below the compliance limit up to July 21, The July 22, 2013 UV total phosphorous result of 1.6 mg/l put the monthly average over the compliance limit. On July 22, 2013 the alum dosage was doubled to 20 mg/l. Alum consumption increased from 1,720 litres per day to 3,009 L per day. On July 24, 2013 the alum dosage was increased to 25 mg/l and on July 26, 2013 to 30 mg/l. By July 28, 2013 the Greenway UV total phosphorous was 0.57 mg/l. Phosphorous levels in 2013 averaged 0.54 mg/l. The annual average flow of 130 ML/day was within the limit of ML/day. The average daily plant peak flow was 238 ML/D in The ph of the effluent ranged from 7.1 to 7.9 which are within the required range of 6.0 to 9.5. The monthly average dissolved oxygen levels were greater than the minimum required in The Greenway PCC Environmental Assessment for an expansion has been completed. The centrifuges (3) were commissioned in June The Section #2 final clarifier was refurbished in The Water Excellence Centre work at Greenway is continuing in Page 1 of 89

3 The goals of a Pollution Prevention and Control Plan (PPCP) are to outline the nature, cause and extent of pollution problems, examine alternatives and propose remedial measures for reducing and mitigating pollution from sewer overflows and then recommend an implementation program for achieving those goals. The City of London has contracted engineering consulting firm CH2M HILL Canada Limited in 2012 to develop the plan through a detailed analysis of the impacts of rainfall events on our existing sewer systems and the Thames River. The existing and proposed changes in the works are sufficient to meet the requirements of the Certificate of Approval to Operate. b) A description of any operating problems encountered and corrective action taken; An issue with treatment of sewage after a rain event/snowmelt is the facility can handle the initial event due to the quality of bacteria normally in sewage plants. If there are several rain events, and then settling in clarifiers does not occur as well because of the increase in filamentous bacteria (they don t settle as well and some pass out of the final clarifiers increasing suspended solid losses). The Greenway Expansion includes new clarifiers for section #3 which have a better design than the existing section 3 final clarifiers. The phosphorous control should be improved with a new on line analyser that is scheduled to be installed in The soluble phosphorous levels can be monitored by the operators and controlled by chemical addition to maintain compliance. c) A summary of all maintenance carried out on any major structure, equipment, apparatus, mechanism or thing forming part of the Works; A Work Order list for the Greenway Pollution Control Centre is attached. d) A summary of any effluent quality assurance or control measures undertaken in the reporting period; A Plant and effluent monitoring program was conducted and the data is in tables of this report. Samples were obtained as required in the Environmental Compliance Approval. The ph samples were done on grab samples once a week and the composite samples the rest of the time. The grab ph samples date and value are listed in the report in a separate table. The UV channel analysis includes bypasses of the screen room and aeration section due to high flows during rainfall/snow melt events. Analyses are based on 24 hr. samples for the Greenway Pollution Control Centre with the exceptions of E. Coli, temperature and Dissolved oxygen which are grab samples. e) A summary of the calibration and maintenance carried out on all effluent monitoring equipment; Calibration information is in the report. Page 2 of 89

4 f) A description of efforts made and results achieved in meeting the effluent Objectives of Condition 6; The plant met the monthly average concentration and loading objectives for BOD and Unionized Ammonia 100% of the time in The minimum Dissolved Oxygen monthly average concentration objective was achieved 100% of the time in Monthly Geometric means for E. Coli in Greenway's effluent in 2013 disinfection period were achieved 100% of the time. The monthly average suspended solids objective of 8.5 mg/l was achieved 92% of the time in g) A tabulation of the volume of sludge generated in the reporting period, an outline of anticipated volumes to be generated in the next reporting period and a summary of the locations to where sludge was disposed; Sludge wasted in 2013 from the aeration sections was 749,945 cubic metres with average solids of 0.67%. The primary sludge generated in 2013 had a volume of 231,530 cubic metres with average solids of 3.4%. The Greenway activated sludge is thickened in dissolved air flotation units or Rotating Drum thickeners. Sludge from the other City of London Wastewater Treatment Plants is hauled to Greenway. In 2013 we anticipate generating 800,000 cubic metres of aeration sludge and 200,000 cubic metres of primary sludge at the Greenway PCC. In 2013, the press cake/centrifuge cake was incinerated or processed in the Bioset process and hauled to the W12A landfill. In 2014 we plan to incinerate or process the sludge in the Bioset process and haul to the W12A Landfill if the incinerator is not operating. The volume of sludge is included in tables in the report. h) A summary of any complaints received during the reporting period and any steps taken to address the complaints; There were 5 complaints received at Greenway in i. On January 10, 2013 a complaint was received due to odours. The wind was from the Southeast. All scrubbers were operating normally. When the operator went to the site no odours were detected. ii. On May 27, 2013 a complaint was received due to odours. The wind was from the Southeast. All scrubbers were operating normally. Bioset treated sludge was being hauled by truck during the commissioning of the centrifuges. With construction, the building has tarps over a large opening but there is still air flow in and out of the building. The truck bay doors could not be lowered due to construction access to the building. The Bioset hauling was finished on June 3, iii. On July 31, 2013 a complaint was received due to odours. The complaint was for odours between 8:30 and 10:40 pm on July 30, Notification of the complaint was received from the Ministry of the Environment on July 31, 2013 at 2:00 pm. According to the Environment Canada wind data, the wind was from the Northwest between 8:00 and 9:00 pm, from the North northeast between 9:00 and 10:00 pm and East-northeast between 10:00 and 11:00 pm. The wind directions would indicate an odour source north of the complainant s site and not from the Greenway Wastewater Treatment Plant. Page 3 of 89

5 iv. On August 16, 2013 there was a complaint about odours. The complaint was for odours around 10:15 pm on August 15, Notification of the complaint was received from the Ministry of the Environment on August 16, According to the Environment Canada wind data, the wind was from South Southeast between 9:00 and 11:00 pm. The wind direction from Greenway was looked at by Randy Bartholomew and is attached below. The data shows a wind direction from the South Southwest for two of the readings every 5 minutes and these were after the complaint time. The wind direction around the time of the complaint was from the North Northwest, West and Northwest. There is a crematorium in this direction relative to the complainant s home. The wind direction data would indicate a source other than Greenway. v. On August 26, 2013 there was an odour complaint. The complaint was for odours from the Greenway plant over the last few weeks mainly at night. An operator went to talk to the complainant on August 27, 2013 at 9:20 am. Due to the non-specific time frame a wind direction could not be used to help confirm the odour source. The complaint was from a site south southeast of the plant. The wind direction for August 26, 2013 was from the west and west southwest between 5:00 pm and midnight. The wind speed from 8:00 pm to midnight was between 3 and 6 kilometers per hour. The complainant mentioned an earlier odour complaint that was looked up and had been due to catch basins on the street. The catch basins did not smell when checked by the operator. i) A summary of all By-pass, spill or abnormal discharge events. There were 16 by-pass events in 2013 at the Greenway Pollution Control Centre. Rainfall for 2013 was 1,075 mm compared to 975 mm yearly average for rainfall from 1986 to There were 14 secondary by-pass events (received primary treatment) and there were 15 raw sewage bypasses. There were two bypass events that had only raw bypasses which occurred due to the rush (peak instantaneous flow) of sewage into the plant. There was one secondary bypass that did not include a raw bypass. The total bypasses receiving primary treatment was ML. The total raw sewage bypassed was ML. The raw by-pass was 0.09% of the volume receiving full treatment and the primary treated by-pass was 1.47% of the volume receiving full treatment. The bypassed primary sewage and raw sewage mixes with the treated flow prior to discharge to the Thames River and is included in the effluent quality monitoring data for the plant. The bypass data is in the tables of the report. Page 4 of 89

6 ASH: In August 2012 the geotube system was started to dewater the ash and the ash basins were taken out of service. Geotubes containers are constructed of a specially- woven polypropylene material. The geotube treatment process consists of filling the geotube container with a slurry of ash. Polymer is introduced into the media to promote flocculation which allows the solids to bind and separate water more efficiently. The geotube container then dewaters the clear effluent commonly known as filtrate to section #3 aeration. Once the bag is filled to its recommended storage capacity the dewatered contents are left to dry further and then the ash can be removed. St. Mary s Cement is currently using the dewatered ash. The ash from the ash basins was hauled to the St. Mary s Cement in Total tonnes of ash removed were 5, Page 5 of 89

7 Greenway Pollution Control Centre Aerial April Page 6 of 89

8 TABLE 1 GREENWAY PCC 2013 MONTHLY AVERAGE SUMMARY DATE TOTAL BOD SUSPENDED SOLIDS EFFLUENT DISSOLVED FLOW RAW UV CHANNEL RAW UV CHANNEL OXYGEN (MG/L) (10 3 m 3 /D) (MG/L) KG/DAY (MG/L) KG/DAY (MG/L) (MG/L) KG/DAY KG/DAY LOWER LOWER ACTUAL LIMIT ACTUAL LIMIT ACTUAL LIMIT ACTUAL LIMIT ACTUAL LIMIT 0BJECTIVE January , , , February , , , March , , , April , , ,981 1, May , , , June , , , July , , , August , , , September , , , October , , , November , , ,029 1, December , , ,157 1, OBJECTIVE AVERAGE , (10 3 m 3 /D) = MIGPD DATE UV CHANNEL PHOSPHOROUS MONTHLY TEMPERATURE NH3 - N UN-IONIZED NH3 RAW UV CHANNEL GEOMETRIC MEAN (C) (MG/L) (MG/L) (MG/L) (MG/L) KG/DAY E. COLI ACTUAL LIMIT ACTUAL LIMIT ACTUAL LIMIT (ORGS/100MLS) OBJECTIVE January February March April May June July August September October November December OBJECTIVE AVERAGE NOTE: BLACK SHADING ARE EXCEEDENCES OF MONTHLY COMPLIANCE LIMITS GREY SHADING ARE VALUES ABOVE MONTHLY AVERAGE OBJECTIVES Page 7 of 89

9 TABLE 2 GREENWAY PCC 2013 MONTHLY SAMPLE COUNT SUMMARY DATE BOD SUSPENDED SOLIDS EFFLUENT DISSOLVED ph RAW UV CHANNEL RAW UV CHANNEL OXYGEN UV CHANNEL January February March April May June July August September October November December Note: 1) UV channel BOD is cbod5 TOTAL DATE TEMPERATURE NH3 - N UN-IONIZED NH3 PHOSPHOROUS TKN NITRATES E. COLI UV CHANNEL RAW UV CHANNEL RAW UV CHANNEL January February March April May June July August September October November December Page 8 of 89 TOTAL

10 BY-PASSES OF SECONDARY TREATMENT IN 2013 GREENWAY 2013 PLANT SUMMARY CITY OF LONDON PLANT GREENWAY ALL SECTIONS ENVIRONMENTAL SERVICES DEPARTMENT POLLUTION CONTROL OPERATIONS DIVISION WEATHER SEWAGE PRIMARY SLUDGE ANALYSES D TEMP. FLOW THRU SECONDARY BY-PASS TO HOLDING TANK BOD 5 DAY SUSP. ph TOTAL NH3 UV A R W D C PLANT P T (mg/l) SOLIDS PHOS. D.O. CHANNEL T A I I 1,000 CUBIC H E U A Cubic % ph % (mg/l) (mg/l) (mg/l) PLANT E I N R R F METERS S O A M ph N M Meters V S % N D E A I PER DAY VOLUME HRS. U S S M P I M R S O O U C U C U C U C E I E. F C W N (10 3 m 3 /D) (10 3 m 3 ) B S O P M E O O E O L LRAW V H RAW V H RAW V H RAW V H U C F N A T A RATE O P L H O R N N M L A I A A A A V H F T E. L I L D E I O N A I I O I T D N N N N A L E C L O MAX. MIN. TOTAL N D R I T Z A V D I S N N N N N U N O N D S O A U E E S L E E E E N E S L E U R D D E L L L L E N I I D S E D L T T mm (mg/l) (mg/l) (mg/l) (mg/l) (C) (mg/l) Y MPN COA Jan Jan Feb Mar Apr Apr Apr Apr Apr Apr May May Jun Aug Sep Sep Sep Sep Sep Oct Oct Dec Dec Dec Dec Dec Page 9 of 89

11 Greenway Secondary bypass Total ,086 count 14 Start Date Start Time Finish date Finish time duration volume Reason for bypass Authority (hours) (m 3 ) 13-Jan-13 5:00 AM 14-Jan-13 1:15 AM ,994 1,7 C & D 29-Jan-13 10:24 AM 30-Jan-13 10:15 PM ,659 1, 2, 4, 7 C & D 19-Feb-13 8:00 AM 19-Feb-13 10:05 AM ,108 1, 2, 7 C & D 11-Mar-13 9:27 AM 12-Mar-13 10:40 PM ,149 1, 2, 7 C & D 28-Mar-13 10:46 AM 28-Mar-13 11:09 AM 0 09-Apr-13 7:35 PM 15-Apr-13 12:00 AM ,031 1,7 C & D 28-May-13 5:18 PM 29-May-13 11:25 AM ,927 1,7 C & D 16-Jun-13 9:15 PM 16-Jun-13 9:22 PM ,7 C & D 22-Jun Jul Aug-13 1:32 AM 01-Aug-13 1:38 AM ,7 C & D 11-Sep-13 6:05 PM 12-Sep-13 1:05 AM ,182 1,7 C & D 20-Sep-13 8:00 PM 22-Sep-13 12:17 AM ,356 1,7 C & D 06-Oct-13 10:06 PM 07-Oct-13 6:34 PM ,546 1,7 C & D 31-Oct-13 4:00 PM 01-Nov-13 1:30 PM ,632 1,7 C & D 04-Dec-13 10:00 PM 05-Dec-13 8:00 PM ,843 1, 2, 7 C & D 21-Dec-13 5:30 PM 23-Dec-13 5:00 PM ,655 1, 2, 7 C & D 1 Heavy Precipitation A Avoid loss of life 2 Snow melt B Avoid personal injury 3 Equipment failure C Avoid dangeer to public health 4 Equipment maintenance D Avoid severe property damage 5 Sewer problem E Prior written acknowledgement 6 Power failure 7 Exceed design capacity Page 10 of 89

12 Greenway Raw Bypass Total ,157 count 15 Start Date Start Time Finish date Finish time duration volume Reason for bypass Authority (hours) (m 3 ) 13-Jan-13 6:30 AM 13-Jan-13 9:22 AM ,364 1,7 C & D 29-Jan-13 10:10 AM 29-Jan-13 9:30 PM ,195 1, 2, 4, 7 C & D 19-Feb-13 8:00 AM 19-Feb-13 8:07 AM , 2, 7 C & D 11-Mar-13 10:22 AM 11-Mar-13 10:57 PM ,641 1, 2, 7 C & D 28-Mar Apr-13 8:00 PM 14-Apr-13 9:05 PM ,961 1,7 C & D 28-May-13 5:18 PM 29-May-13 4:15 AM ,7 C & D 16-Jun-13 8:55 PM 16-Jun-13 9:15 PM ,7 C & D 22-Jun-13 9:14 PM 22-Jun-13 9:28 PM ,7 C & D 10-Jul-13 6:00 PM 10-Jul-13 6:12 PM 0.20 <1 1,7 C & D 01-Aug Sep-13 8:00 PM 11-Sep-13 10:15 PM ,7 C & D 20-Sep-13 8:40 PM 22-Sep-13 12:17 AM ,995 1,7 C & D 06-Oct-13 10:06 PM 143 1,7 C & D 31-Oct-13 4:00 PM 01-Nov-13 1:30 PM ,829 1,7 C & D 05-Dec-13 6:39 AM 05-Dec-13 8:05 AM , 2, 7 C & D 22-Dec-13 12:00 AM 23-Dec-13 5:00 PM , 2, 7 C & D 1 Heavy Precipitation A Avoid loss of life 2 Snow melt B Avoid personal injury 3 Equipment failure C Avoid dangeer to public health 4 Equipment maintenance D Avoid severe property damage 5 Sewer problem E Prior written acknowledgement 6 Power failure 7 Exceed design capacity Page 11 of 89

13 GREENWAY 2013 PLANT SUMMARY CITY OF LONDON PLANT GREENWAY ALL SECTIONS ENVIRONMENTAL SERVICES DEPARTMENT POLLUTION CONTROL OPERATIONS DIVISION WEATHER SEWAGE PRIMARY SLUDGE ANALYSES D TEMP. FLOW THRU SECONDARY BY-PASS TO HOLDING TANK BOD 5 DAY SUSP. ph TOTAL NH3 UV A R W D C PLANT P T (mg/l) SOLIDS PHOS. D.O. CHANNEL T A I I 1,000 CUBIC H E U A Cubic % ph % (mg/l) (mg/l) (mg/l) PLANT E I N R R F METERS S O A M ph N M Meters V S N D E A I PER DAY VOLUME HRS. U S S M P I M R S O O U C U C U C U C E E. F C W N (10 3 m 3 /D) (10 3 m 3 ) B S O P M E O O E O L L RAW V H RAW V H RAW V H RAW V H U C F A T A RATE O P L H O R N N M L A I A A A A V H F E. L I L D E I O N A I I O I T D N N N N A L C L O MAX. MIN. TOTAL N D R I T Z A V D I S N N N N N U O N D S O A U E E S L E E E E N E L E U R D D E L L L L E N I D S E L T mm (mg/l) (mg/l) (mg/l) (mg/l) (C) (mg/l) MPN COA Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Feb Mar Mar Mar Mar Mar Mar Mar Page 12 of 89

14 GREENWAY 2013 PLANT SUMMARY CITY OF LONDON PLANT GREENWAY ALL SECTIONS ENVIRONMENTAL SERVICES DEPARTMENT POLLUTION CONTROL OPERATIONS DIVISION WEATHER SEWAGE PRIMARY SLUDGE ANALYSES D TEMP. FLOW THRU SECONDARY BY-PASS TO HOLDING TANK BOD 5 DAY SUSP. ph TOTAL NH3 UV A R W D C PLANT P T (mg/l) SOLIDS PHOS. D.O. CHANNEL T A I I 1,000 CUBIC H E U A Cubic % ph % (mg/l) (mg/l) (mg/l) PLANT E I N R R F METERS S O A M ph N M Meters V S N D E A I PER DAY VOLUME HRS. U S S M P I M R S O O U C U C U C U C E E. F C W N (10 3 m 3 /D) (10 3 m 3 ) B S O P M E O O E O L L RAW V H RAW V H RAW V H RAW V H U C F A T A RATE O P L H O R N N M L A I A A A A V H F E. L I L D E I O N A I I O I T D N N N N A L C L O MAX. MIN. TOTAL N D R I T Z A V D I S N N N N N U O N D S O A U E E S L E E E E N E L E U R D D E L L L L E N I D S E L T mm (mg/l) (mg/l) (mg/l) (mg/l) (C) (mg/l) MPN COA Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Mar Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr Apr May May May May May May May May May May May May Page 13 of 89

15 GREENWAY 2013 PLANT SUMMARY CITY OF LONDON PLANT GREENWAY ALL SECTIONS ENVIRONMENTAL SERVICES DEPARTMENT POLLUTION CONTROL OPERATIONS DIVISION WEATHER SEWAGE PRIMARY SLUDGE ANALYSES D TEMP. FLOW THRU SECONDARY BY-PASS TO HOLDING TANK BOD 5 DAY SUSP. ph TOTAL NH3 UV A R W D C PLANT P T (mg/l) SOLIDS PHOS. D.O. CHANNEL T A I I 1,000 CUBIC H E U A Cubic % ph % (mg/l) (mg/l) (mg/l) PLANT E I N R R F METERS S O A M ph N M Meters V S N D E A I PER DAY VOLUME HRS. U S S M P I M R S O O U C U C U C U C E E. F C W N (10 3 m 3 /D) (10 3 m 3 ) B S O P M E O O E O L L RAW V H RAW V H RAW V H RAW V H U C F A T A RATE O P L H O R N N M L A I A A A A V H F E. L I L D E I O N A I I O I T D N N N N A L C L O MAX. MIN. TOTAL N D R I T Z A V D I S N N N N N U O N D S O A U E E S L E E E E N E L E U R D D E L L L L E N I D S E L T mm (mg/l) (mg/l) (mg/l) (mg/l) (C) (mg/l) MPN COA May May May May May May May May May May May May May May May May May May May Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun , Jun <10 12-Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jun Jul Jul Jul Jul Jul Jul Jul Jul Jul Jul Jul Jul Jul Jul Jul Jul Jul Page 14 of 89

16 GREENWAY 2013 PLANT SUMMARY CITY OF LONDON PLANT GREENWAY ALL SECTIONS ENVIRONMENTAL SERVICES DEPARTMENT POLLUTION CONTROL OPERATIONS DIVISION WEATHER SEWAGE PRIMARY SLUDGE ANALYSES D TEMP. FLOW THRU SECONDARY BY-PASS TO HOLDING TANK BOD 5 DAY SUSP. ph TOTAL NH3 UV A R W D C PLANT P T (mg/l) SOLIDS PHOS. D.O. CHANNEL T A I I 1,000 CUBIC H E U A Cubic % ph % (mg/l) (mg/l) (mg/l) PLANT E I N R R F METERS S O A M ph N M Meters V S N D E A I PER DAY VOLUME HRS. U S S M P I M R S O O U C U C U C U C E E. F C W N (10 3 m 3 /D) (10 3 m 3 ) B S O P M E O O E O L L RAW V H RAW V H RAW V H RAW V H U C F A T A RATE O P L H O R N N M L A I A A A A V H F E. L I L D E I O N A I I O I T D N N N N A L C L O MAX. MIN. TOTAL N D R I T Z A V D I S N N N N N U O N D S O A U E E S L E E E E N E L E U R D D E L L L L E N I D S E L T mm (mg/l) (mg/l) (mg/l) (mg/l) (C) (mg/l) MPN COA Jul Jul Jul Jul Jul Jul , Jul Jul Jul Jul Jul Jul Jul Jul Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Aug Sep Sep Sep Sep Sep Sep Sep Sep Sep Sep Sep Sep Sep-13 N/A Sep Sep Sep Sep Sep Sep Sep Sep Page 15 of 89

17 GREENWAY 2013 PLANT SUMMARY CITY OF LONDON PLANT GREENWAY ALL SECTIONS ENVIRONMENTAL SERVICES DEPARTMENT POLLUTION CONTROL OPERATIONS DIVISION WEATHER SEWAGE PRIMARY SLUDGE ANALYSES D TEMP. FLOW THRU SECONDARY BY-PASS TO HOLDING TANK BOD 5 DAY SUSP. ph TOTAL NH3 UV A R W D C PLANT P T (mg/l) SOLIDS PHOS. D.O. CHANNEL T A I I 1,000 CUBIC H E U A Cubic % ph % (mg/l) (mg/l) (mg/l) PLANT E I N R R F METERS S O A M ph N M Meters V S N D E A I PER DAY VOLUME HRS. U S S M P I M R S O O U C U C U C U C E E. F C W N (10 3 m 3 /D) (10 3 m 3 ) B S O P M E O O E O L L RAW V H RAW V H RAW V H RAW V H U C F A T A RATE O P L H O R N N M L A I A A A A V H F E. L I L D E I O N A I I O I T D N N N N A L C L O MAX. MIN. TOTAL N D R I T Z A V D I S N N N N N U O N D S O A U E E S L E E E E N E L E U R D D E L L L L E N I D S E L T mm (mg/l) (mg/l) (mg/l) (mg/l) (C) (mg/l) MPN COA Sep Sep Sep Sep Sep Sep Sep Sep Sep Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Nov Nov Nov Nov Nov Nov Nov Nov Nov Nov Nov Nov Nov Nov Nov Nov Nov Nov Nov Nov Nov Nov Nov Nov Nov Nov Page 16 of 89

18 GREENWAY 2013 PLANT SUMMARY CITY OF LONDON PLANT GREENWAY ALL SECTIONS ENVIRONMENTAL SERVICES DEPARTMENT POLLUTION CONTROL OPERATIONS DIVISION WEATHER SEWAGE PRIMARY SLUDGE ANALYSES D TEMP. FLOW THRU SECONDARY BY-PASS TO HOLDING TANK BOD 5 DAY SUSP. ph TOTAL NH3 UV A R W D C PLANT P T (mg/l) SOLIDS PHOS. D.O. CHANNEL T A I I 1,000 CUBIC H E U A Cubic % ph % (mg/l) (mg/l) (mg/l) PLANT E I N R R F METERS S O A M ph N M Meters V S N D E A I PER DAY VOLUME HRS. U S S M P I M R S O O U C U C U C U C E E. F C W N (10 3 m 3 /D) (10 3 m 3 ) B S O P M E O O E O L L RAW V H RAW V H RAW V H RAW V H U C F A T A RATE O P L H O R N N M L A I A A A A V H F E. L I L D E I O N A I I O I T D N N N N A L C L O MAX. MIN. TOTAL N D R I T Z A V D I S N N N N N U O N D S O A U E E S L E E E E N E L E U R D D E L L L L E N I D S E L T mm (mg/l) (mg/l) (mg/l) (mg/l) (C) (mg/l) MPN COA Nov Nov Nov Nov Dec Dec Dec Dec Dec Dec Dec Dec-13 snow Dec Dec-13 snow Dec Dec-13 snow Dec Dec Dec Dec-13 snow Dec Dec-13 snow Dec Dec Dec Dec Dec Dec Dec Dec Dec , Dec Dec Dec-13 snow Dec TOTAL 47, ,530 AVERAGE MAX , ,654 MIN # OF SAMPLES Page 17 of 89

19 STD 0.08 Max 7.51 Min 7.13 average 7.33 count 53 RECORD_# CUST SAMP REF NO CUSTOMER SAMPLE DATE ANALYTE RESULT UNIT SAMPLE SOURCE GRWY UV. City of London G. Gauld ph 7.22 ph units GRAB GRWY UV. City of London G. Gauld ph 7.35 ph units GRAB GRWY UV. City of London G. Gauld ph 7.28 ph units GRAB GRWY UV. City of London G. Gauld ph 7.18 ph units GRAB GRWY UV. City of London G. Gauld ph 7.3 ph units GRAB GRWY UV. City of London G. Gauld ph 7.31 ph units GRAB GRWY UV. City of London G. Gauld ph 7.29 ph units GRAB GRWY UV. City of London G. Gauld ph 7.37 ph units GRAB GRWY UV. City of London G. Gauld ph 7.29 ph units GRAB GRWY UV. City of London G. Gauld ph 7.51 ph units GRAB GRWY UV. City of London G. Gauld ph 7.44 ph units GRAB GRWY UV. City of London G. Gauld ph 7.37 ph units GRAB GRWY UV. City of London G. Gauld ph 7.31 ph units GRAB GRWY UV. City of London G. Gauld ph 7.29 ph units GRAB GRWY UV. City of London G. Gauld ph 7.24 ph units GRAB GRWY UV. City of London G. Gauld ph 7.31 ph units GRAB GRWY UV. City of London G. Gauld ph 7.24 ph units GRAB GRWY UV. City of London G. Gauld ph 7.34 ph units GRAB GRWY UV. City of London G. Gauld ph 7.44 ph units GRAB GRWY UV. City of London G. Gauld ph 7.31 ph units GRAB GRWY UV. City of London G. Gauld ph 7.37 ph units GRAB GRWY UV. City of London G. Gauld ph 7.17 ph units GRAB GRWY UV. City of London G. Gauld ph 7.31 ph units GRAB GRWY UV. City of London G. Gauld ph 7.38 ph units GRAB GRWY UV. City of London G. Gauld ph 7.35 ph units GRAB GRWY UV. City of London G. Gauld ph 7.47 ph units GRAB GRWY UV. City of London G. Gauld ph 7.4 ph units GRAB GRWY UV. City of London G. Gauld ph 7.25 ph units GRAB GRWY UV. City of London G. Gauld ph 7.43 ph units GRAB GRWY UV. City of London G. Gauld ph 7.35 ph units GRAB GRWY UV. City of London G. Gauld ph 7.43 ph units GRAB GRWY UV. City of London G. Gauld ph 7.29 ph units GRAB GRWY UV. City of London G. Gauld ph 7.45 ph units GRAB GRWY UV. City of London G. Gauld ph 7.27 ph units GRAB GRWY UV. City of London G. Gauld ph 7.34 ph units GRAB GRWY UV. City of London G. Gauld ph 7.44 ph units GRAB GRWY UV. City of London G. Gauld ph 7.35 ph units GRAB GRWY UV. City of London G. Gauld ph 7.31 ph units GRAB GRWY UV. City of London G. Gauld ph 7.37 ph units GRAB GRWY UV. City of London G. Gauld ph 7.43 ph units GRAB GRWY UV. City of London G. Gauld ph 7.26 ph units GRAB GRWY UV. City of London G. Gauld ph 7.31 ph units GRAB GRWY UV. City of London G. Gauld ph 7.34 ph units GRAB GRWY UV. City of London G. Gauld ph 7.37 ph units GRAB GRWY UV. City of London G. Gauld ph 7.2 ph units GRAB GRWY UV. City of London G. Gauld ph 7.33 ph units GRAB GRWY UV. City of London G. Gauld ph 7.51 ph units GRAB GRWY UV. City of London G. Gauld ph 7.31 ph units GRAB GRWY UV. City of London G. Gauld ph 7.33 ph units GRAB GRWY UV. City of London G. Gauld ph 7.2 ph units GRAB Page 18 of 89

20 STD 0.08 Max 7.51 Min 7.13 average 7.33 count 53 RECORD_# CUST SAMP REF NO CUSTOMER SAMPLE DATE ANALYTE RESULT UNIT SAMPLE SOURCE GRWY UV. City of London G. Gauld ph 7.19 ph units GRAB GRWY UV. City of London G. Gauld ph 7.13 ph units GRAB GRWY UV. City of London G. Gauld ph 7.37 ph units GRAB Page 19 of 89

21 GREENWAY 2013 NITROGEN ANALYSES REPORT CITY OF LONDON PLANT: GREENWAY NOTE: ALL RESULTS IN PPM AS "N" ENVIRONMENTAL SERVICES DEPARTMENT TKN - TOTAL KJELDAHL NITROGEN DATE # 1 SECTION # 2 SECTION # 3 SECTION RAW PRIMARY SECONDARY PRIMARY #1 PASS #2 & 3 PASS PRIMARY # 1 PASS SECONDARY # 2 PASS SECONDARY # 3 PASS SECONDARY UV CHANNEL FREE TKN ALKA FREE TKN ALKA FREE TKN FREE TKN ALKA FREE TKN FREE TKN FREE TKN ALKA FREE TKN FREE TKN FREE TKN FREE TEMP ph UN-IONIZEDTKN NO3 NO2 ALKA NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH Jan Jan Jan Jan 05-Jan 06-Jan Jan Jan Jan Jan Jan 12-Jan 13-Jan Jan Jan Jan Jan Jan 19-Jan 20-Jan Jan Jan Jan Jan Jan 26-Jan 27-Jan Jan Jan 30-Jan Jan 01-Feb 02-Feb 03-Feb Feb Feb Feb Feb Feb 09-Feb 10-Feb Feb Feb Feb Feb Feb 16-Feb 17-Feb Feb 19-Feb Feb Feb Feb 23-Feb 24-Feb Feb Feb Page 20 of 89

22 GREENWAY 2013 NITROGEN ANALYSES REPORT CITY OF LONDON PLANT: GREENWAY NOTE: ALL RESULTS IN PPM AS "N" ENVIRONMENTAL SERVICES DEPARTMENT TKN - TOTAL KJELDAHL NITROGEN DATE # 1 SECTION # 2 SECTION # 3 SECTION RAW PRIMARY SECONDARY PRIMARY #1 PASS #2 & 3 PASS PRIMARY # 1 PASS SECONDARY # 2 PASS SECONDARY # 3 PASS SECONDARY UV CHANNEL FREE TKN ALKA FREE TKN ALKA FREE TKN FREE TKN ALKA FREE TKN FREE TKN FREE TKN ALKA FREE TKN FREE TKN FREE TKN FREE TEMP ph UN-IONIZEDTKN NO3 NO2 ALKA NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH Feb Feb Mar 02-Mar 03-Mar Mar Mar Mar Mar Mar 09-Mar 10-Mar Mar Mar Mar Mar Mar 16-Mar 17-Mar Mar Mar Mar Mar Mar 23-Mar 24-Mar Mar Mar Mar Mar Mar 30-Mar 31-Mar Apr 02-Apr Apr 04-Apr Apr 06-Apr 07-Apr Apr Apr Apr Apr Apr 13-Apr 14-Apr Apr Apr Apr Apr 19-Apr 20-Apr 21-Apr Apr Apr Apr Page 21 of 89

23 GREENWAY 2013 NITROGEN ANALYSES REPORT CITY OF LONDON PLANT: GREENWAY NOTE: ALL RESULTS IN PPM AS "N" ENVIRONMENTAL SERVICES DEPARTMENT TKN - TOTAL KJELDAHL NITROGEN DATE # 1 SECTION # 2 SECTION # 3 SECTION RAW PRIMARY SECONDARY PRIMARY #1 PASS #2 & 3 PASS PRIMARY # 1 PASS SECONDARY # 2 PASS SECONDARY # 3 PASS SECONDARY UV CHANNEL FREE TKN ALKA FREE TKN ALKA FREE TKN FREE TKN ALKA FREE TKN FREE TKN FREE TKN ALKA FREE TKN FREE TKN FREE TKN FREE TEMP ph UN-IONIZEDTKN NO3 NO2 ALKA NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH Apr Apr 27-Apr 28-Apr Apr Apr May May May 04-May 05-May May May May May May 11-May 12-May May May May 16-May May 18-May 19-May May 21-May May 23-May May 25-May 26-May May May May May 31-May 01-Jun 02-Jun Jun Jun Jun 06-Jun Jun 08-Jun 09-Jun Jun Jun Jun Jun Jun 15-Jun 16-Jun 17-Jun Jun Jun Jun Page 22 of 89

24 GREENWAY 2013 NITROGEN ANALYSES REPORT CITY OF LONDON PLANT: GREENWAY NOTE: ALL RESULTS IN PPM AS "N" ENVIRONMENTAL SERVICES DEPARTMENT TKN - TOTAL KJELDAHL NITROGEN DATE # 1 SECTION # 2 SECTION # 3 SECTION RAW PRIMARY SECONDARY PRIMARY #1 PASS #2 & 3 PASS PRIMARY # 1 PASS SECONDARY # 2 PASS SECONDARY # 3 PASS SECONDARY UV CHANNEL FREE TKN ALKA FREE TKN ALKA FREE TKN FREE TKN ALKA FREE TKN FREE TKN FREE TKN ALKA FREE TKN FREE TKN FREE TKN FREE TEMP ph UN-IONIZEDTKN NO3 NO2 ALKA NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH Jun 22-Jun 23-Jun Jun Jun Jun Jun Jun 29-Jun 30-Jun Jul 02-Jul Jul Jul Jul 06-Jul 07-Jul Jul Jul Jul Jul Jul 13-Jul 14-Jul Jul Jul Jul Jul Jul 20-Jul 21-Jul Jul Jul Jul Jul Jul 27-Jul 28-Jul Jul Jul Jul Aug Aug 03-Aug 04-Aug Aug 06-Aug Aug 08-Aug Aug 10-Aug 11-Aug Aug Aug Aug Aug Aug Page 23 of 89

25 GREENWAY 2013 NITROGEN ANALYSES REPORT CITY OF LONDON PLANT: GREENWAY NOTE: ALL RESULTS IN PPM AS "N" ENVIRONMENTAL SERVICES DEPARTMENT TKN - TOTAL KJELDAHL NITROGEN DATE # 1 SECTION # 2 SECTION # 3 SECTION RAW PRIMARY SECONDARY PRIMARY #1 PASS #2 & 3 PASS PRIMARY # 1 PASS SECONDARY # 2 PASS SECONDARY # 3 PASS SECONDARY UV CHANNEL FREE TKN ALKA FREE TKN ALKA FREE TKN FREE TKN ALKA FREE TKN FREE TKN FREE TKN ALKA FREE TKN FREE TKN FREE TKN FREE TEMP ph UN-IONIZEDTKN NO3 NO2 ALKA NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH Aug 18-Aug Aug Aug Aug Aug Aug 24-Aug 25-Aug Aug Aug Aug 29-Aug Aug 31-Aug 01-Sep Sep 03-Sep Sep 05-Sep Sep 07-Sep 08-Sep Sep Sep Sep Sep Sep 14-Sep 15-Sep Sep Sep Sep 19-Sep Sep 21-Sep 22-Sep Sep Sep Sep 26-Sep Sep 28-Sep 29-Sep Sep Oct Oct Oct Oct 05-Oct 06-Oct Oct Oct Oct Oct Oct 12-Oct Page 24 of 89

26 GREENWAY 2013 NITROGEN ANALYSES REPORT CITY OF LONDON PLANT: GREENWAY NOTE: ALL RESULTS IN PPM AS "N" ENVIRONMENTAL SERVICES DEPARTMENT TKN - TOTAL KJELDAHL NITROGEN DATE # 1 SECTION # 2 SECTION # 3 SECTION RAW PRIMARY SECONDARY PRIMARY #1 PASS #2 & 3 PASS PRIMARY # 1 PASS SECONDARY # 2 PASS SECONDARY # 3 PASS SECONDARY UV CHANNEL FREE TKN ALKA FREE TKN ALKA FREE TKN FREE TKN ALKA FREE TKN FREE TKN FREE TKN ALKA FREE TKN FREE TKN FREE TKN FREE TEMP ph UN-IONIZEDTKN NO3 NO2 ALKA NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH Oct Oct 15-Oct Oct Oct Oct 19-Oct 20-Oct Oct Oct Oct Oct Oct 26-Oct 27-Oct Oct Oct Oct Oct Nov 02-Nov 03-Nov Nov Nov Nov Nov Nov 09-Nov 10-Nov Nov Nov Nov Nov Nov 16-Nov 17-Nov Nov Nov Nov Nov Nov 23-Nov 24-Nov Nov Nov Nov Nov Nov 30-Nov 01-Dec Dec 03-Dec Dec Dec Dec 07-Dec 08-Dec Page 25 of 89

27 GREENWAY 2013 NITROGEN ANALYSES REPORT CITY OF LONDON PLANT: GREENWAY NOTE: ALL RESULTS IN PPM AS "N" ENVIRONMENTAL SERVICES DEPARTMENT TKN - TOTAL KJELDAHL NITROGEN DATE # 1 SECTION # 2 SECTION # 3 SECTION RAW PRIMARY SECONDARY PRIMARY #1 PASS #2 & 3 PASS PRIMARY # 1 PASS SECONDARY # 2 PASS SECONDARY # 3 PASS SECONDARY UV CHANNEL FREE TKN ALKA FREE TKN ALKA FREE TKN FREE TKN ALKA FREE TKN FREE TKN FREE TKN ALKA FREE TKN FREE TKN FREE TKN FREE TEMP ph UN-IONIZEDTKN NO3 NO2 ALKA NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH3 NH Dec Dec Dec Dec Dec 14-Dec 15-Dec Dec Dec Dec Dec Dec 21-Dec 22-Dec 23-Dec 24-Dec Dec 26-Dec Dec 28-Dec 29-Dec Dec 31-Dec AVERAGE MAX MIN # OF SAMPLES Page 26 of 89

28 SLUDGE TABULATION GREENWAY PCC 2013 SUMMARY PRIMARY SLUDGE SECTION #1 SECTION #2 SECTION #3 D TO HOLDING TANK RETURN SLUDGE RETURN SLUDGE RETURN SLUDGE A T Cubic % ph % (10 3 m 3 /D) M 3 /D (103m3/D) M 3 /D (10 3 m 3 /D) m3 E Meters V S S S S R S O O A W U S A W U S A W U S E O L L E A S O E A S O E A S O M L A I R S P L R S P L R S P L O I T D A T E I A T E I A T E I V D I S T E N D T E N D T E N D E S L O D S O D S O D S D E R E R E R E D S D S D S D (mg/l) (mg/l) (mg/l) PASS 2 PASS 1 PASS 2 PASS 1-Jan Jan , ,536 3, ,537 3-Jan , ,910 2, ,677 4-Jan , ,982 3, ,804 5-Jan Jan Jan , ,390 4, ,043 7,245 8-Jan , ,352 4, ,299 9-Jan , ,288 4, ,086 8, Jan , ,732 5, ,108 7, Jan , ,640 5, ,182 9, Jan , Jan , Jan , ,870 8, , Jan , ,350 7, , Jan , ,520 7, , Jan , ,104 7, , Jan , ,576 6, , Jan Jan , Jan , ,072 6, ,251 9, Jan , ,772 4, ,232 8, Jan , ,552 3, ,261 8, Jan , ,152 4, ,400 8, Jan , ,760 5, ,361 8, Jan , Jan , Jan , ,324 4, ,352 6, Jan , ,156 5, ,116 8, Jan , Jan , ,378 6, ,245 9,605 1-Feb , ,922 6, ,790 2-Feb Feb Feb , ,080 4, ,769 5-Feb , ,250 3, ,951 6-Feb , ,078 4, ,472 7-Feb , ,514 4, ,455 8-Feb , ,510 3, ,062 7,795 9-Feb , Feb Feb , ,474 4, , Feb , ,738 4, ,123 7, Feb , ,984 4, , Feb , ,032 4, , Feb , ,004 4, , Feb Feb Feb Feb , ,202 3,970 3, , Feb , ,790 2, , Feb , ,832 1, , Feb , ,928 3, ,002 12, Feb , Feb , Feb , ,994 2, ,950 9, Feb , ,408 2, ,317 8, Feb , ,000 3, , Feb , ,436 4, ,393 1-Mar , ,604 5, ,943 2-Mar ,081 3-Mar ,059 4-Mar , ,382 3, ,559 5-Mar , ,954 4, ,900 6-Mar , ,136 3, ,878 7-Mar , ,156 3, ,331 8-Mar , ,270 1, ,741 9-Mar Mar Mar , ,206 5, , Mar Mar , ,702 4, , Mar , ,998 3, , Mar , ,800 3, , Mar Mar Mar , ,414 4, , Mar , ,288 5, , Mar , ,372 5, ,742 Page 27 of 89

29 SLUDGE TABULATION GREENWAY PCC 2013 SUMMARY PRIMARY SLUDGE SECTION #1 SECTION #2 SECTION #3 D TO HOLDING TANK RETURN SLUDGE RETURN SLUDGE RETURN SLUDGE A T Cubic % ph % (10 3 m 3 /D) M 3 /D (103m3/D) M 3 /D (10 3 m 3 /D) m3 E Meters V S S S S R S O O A W U S A W U S A W U S E O L L E A S O E A S O E A S O M L A I R S P L R S P L R S P L O I T D A T E I A T E I A T E I V D I S T E N D T E N D T E N D E S L O D S O D S O D S D E R E R E R E D S D S D S D (mg/l) (mg/l) (mg/l) PASS 2 PASS 1 PASS 2 PASS 21-Mar , ,950 6, ,116 9, Mar , ,086 5, , Mar Mar , Mar , Mar , ,056 4, ,269 7, Mar , ,220 4, ,197 7, Mar , ,698 4, ,152 6, Mar , Mar Mar Apr Apr , ,212 4, ,936 3-Apr , ,324 3, ,397 4-Apr , ,412 3, ,575 5-Apr , ,634 3, ,353 6-Apr Apr Apr , ,936 2, ,427 9-Apr , ,450 2, , Apr Apr , ,996 8, , Apr , ,576 7, , Apr Apr Apr , ,540 8, , Apr , ,160 8, , Apr , ,618 8, , Apr , ,150 10, , Apr , ,490 10, , Apr Apr , Apr , ,200 7, , Apr , ,074 8, ,294 9, Apr , ,396 7, ,582 8, Apr , ,080 8, ,708 8, Apr , Apr Apr Apr , ,614 9, , Apr , ,272 7, ,060 1-May , , ,135 8,022 2-May , ,644 6, ,296 8,315 3-May , ,742 6, ,279 8,393 4-May ,150 5-May May , ,660 3, ,067 7-May , ,772 4, ,900 8-May , ,654 3, ,073 9-May , ,614 4, , May , ,640 4, , May May May , ,790 6, , May , ,180 6, , May , ,070 6, , May , ,840 4, , May , ,740 2, ,137 9, May , May , May , May , ,430 2, , May , ,600 4, , May , ,370 3, ,054 8, May , ,010 3, ,240 7, May , May , May , ,780 3, , May , ,310 4, , May , ,540 6, , May , ,660 6, , May , ,140 5, ,640 1-Jun ,783 2-Jun ,735 3-Jun , ,620 6, ,690 7,353 4-Jun , ,320 5, ,295 7,530 5-Jun , ,760 5, ,063 7,987 6-Jun , ,490 7, ,067 7,610 7-Jun , ,210 5, ,037 8,033 Page 28 of 89

30 SLUDGE TABULATION GREENWAY PCC 2013 SUMMARY PRIMARY SLUDGE SECTION #1 SECTION #2 SECTION #3 D TO HOLDING TANK RETURN SLUDGE RETURN SLUDGE RETURN SLUDGE A T Cubic % ph % (10 3 m 3 /D) M 3 /D (103m3/D) M 3 /D (10 3 m 3 /D) m3 E Meters V S S S S R S O O A W U S A W U S A W U S E O L L E A S O E A S O E A S O M L A I R S P L R S P L R S P L O I T D A T E I A T E I A T E I V D I S T E N D T E N D T E N D E S L O D S O D S O D S D E R E R E R E D S D S D S D (mg/l) (mg/l) (mg/l) PASS 2 PASS 1 PASS 2 PASS 8-Jun ,232 9-Jun , Jun-13 1, , ,060 4, ,280 6, Jun , ,750 6, ,975 6, Jun , ,540 4, ,586 6, Jun , ,220 5, ,297 5, Jun , ,190 4, ,254 5, Jun , Jun , Jun , ,980 4, , Jun , ,290 6, ,645 6, Jun , ,350 4, ,357 5, Jun , ,490 6, ,108 5, Jun , ,950 5, ,377 4, Jun , Jun , Jun , ,790 5, ,218 5, Jun , ,990 5, ,327 5, Jun , ,540 5, ,014 5, Jun , , ,500 5, Jun ,570 5, ,154 5, Jun Jun Jul Jul , ,520 5, ,977 3-Jul , ,260 6, ,403 4-Jul , ,860 5, ,015 5,580 5-Jul , ,650 7, ,260 7,380 6-Jul ,291 7-Jul ,295 8-Jul , ,650 7, ,380 9-Jul , ,350 8, , Jul , ,560 7, , Jul , ,310 8, ,059 8, Jul , ,940 8, ,429 9, Jul , Jul Jul , ,376 6, , Jul , ,156 7, , Jul , ,696 7, ,041 9, Jul , ,598 3, , Jul , ,890 5, ,217 6, Jul , Jul , Jul , ,240 2, ,075 5, Jul , ,570 5, ,451 5, Jul , ,640 3, ,174 5, Jul , ,700 4, ,203 5, Jul , ,150 4, ,128 5, Jul , Jul Jul , ,180 3, ,013 3, Jul , ,970 2, , Jul , ,270 3, ,060 1-Aug , ,260 3, ,273 2-Aug , ,740 3, ,810 3-Aug Aug Aug Aug , ,780 5, ,053 5,150 7-Aug , ,630 4, ,273 8-Aug , ,340 5, ,760 9-Aug , ,130 5, ,042 5, Aug , Aug , Aug , ,540 4, ,348 5, Aug , ,210 5, ,118 5, Aug , ,840 4, ,074 3, Aug , ,840 4, ,929 5, Aug , ,590 4, ,566 5, Aug , Aug , Aug , ,760 3, ,669 4, Aug , ,350 4, ,565 4, Aug , ,990 4, ,307 4, Aug , ,150 4, ,289 5, Aug , ,670 3, ,249 4, Aug , Aug ,040 Page 29 of 89

31 SLUDGE TABULATION GREENWAY PCC 2013 SUMMARY PRIMARY SLUDGE SECTION #1 SECTION #2 SECTION #3 D TO HOLDING TANK RETURN SLUDGE RETURN SLUDGE RETURN SLUDGE A T Cubic % ph % (10 3 m 3 /D) M 3 /D (103m3/D) M 3 /D (10 3 m 3 /D) m3 E Meters V S S S S R S O O A W U S A W U S A W U S E O L L E A S O E A S O E A S O M L A I R S P L R S P L R S P L O I T D A T E I A T E I A T E I V D I S T E N D T E N D T E N D E S L O D S O D S O D S D E R E R E R E D S D S D S D (mg/l) (mg/l) (mg/l) PASS 2 PASS 1 PASS 2 PASS 26-Aug , ,426 3, , Aug , ,954 4, , Aug , ,190 3, , Aug , ,788 2, , Aug , ,970 4, , Aug Sep ,031 2-Sep ,015 3-Sep , ,334 2, ,183 5,197 4-Sep , ,476 3, ,274 5-Sep , ,382 4, ,161 5,937 6-Sep , ,370 4, ,598 5,585 7-Sep ,888 8-Sep ,849 9-Sep , ,854 3, ,350 5, Sep , ,700 3, ,572 5, Sep , ,208 5, ,228 5, Sep , ,596 3, ,188 5, Sep , ,350 4, ,438 5, Sep , Sep Sep , ,030 3, ,471 6, Sep , ,526 3, ,811 6, Sep , ,402 3, ,210 6, Sep , ,234 4, ,158 6, Sep , ,886 4, ,539 6, Sep Sep , Sep , ,606 6, , Sep , ,200 7, , Sep , ,160 7, , Sep , ,850 8, , Sep , ,004 7, ,804 6, Sep , Sep , Sep , ,352 4, ,607 4,036 1-Oct , ,548 5, ,616 5,312 2-Oct , ,840 5, ,384 5,270 3-Oct , ,030 4, ,170 4-Oct , ,900 3, ,200 5,683 5-Oct ,303 6-Oct ,324 7-Oct ,215 8-Oct , ,870 5, ,206 9-Oct , ,156 6, ,038 6, Oct , ,852 7, ,041 7, Oct , ,362 6, ,005 7, Oct Oct , Oct , Oct , ,208 6, ,149 7, Oct , ,726 5, ,275 6, Oct , ,700 4, ,220 6, Oct , ,920 6, ,384 7, Oct , Oct Oct , ,582 5, , Oct , ,468 7, , Oct , ,418 7, ,015 7, Oct , ,220 9, ,038 8, Oct , ,336 10, , Oct Oct Oct , ,394 9, , Oct , ,800 9, , Oct , ,398 9, ,193 8, Oct , ,724 10, ,680 9,061 1-Nov , ,980 10, ,253 10,637 2-Nov ,215 3-Nov ,419 4-Nov , ,982 7, ,475 5-Nov , Nov , ,192 8, ,153 7-Nov , ,054 9, ,258 8-Nov , ,464 6, ,067 9-Nov Nov Nov , ,776 7, , Nov , ,214 7, ,109 Page 30 of 89

32 SLUDGE TABULATION GREENWAY PCC 2013 SUMMARY PRIMARY SLUDGE SECTION #1 SECTION #2 SECTION #3 D TO HOLDING TANK RETURN SLUDGE RETURN SLUDGE RETURN SLUDGE A T Cubic % ph % (10 3 m 3 /D) M 3 /D (103m3/D) M 3 /D (10 3 m 3 /D) m3 E Meters V S S S S R S O O A W U S A W U S A W U S E O L L E A S O E A S O E A S O M L A I R S P L R S P L R S P L O I T D A T E I A T E I A T E I V D I S T E N D T E N D T E N D E S L O D S O D S O D S D E R E R E R E D S D S D S D (mg/l) (mg/l) (mg/l) PASS 2 PASS 1 PASS 2 PASS 13-Nov , ,228 5, , Nov , ,596 5, , Nov , ,904 7, ,009 5, Nov , Nov , Nov , ,088 6, ,183 8, Nov , ,990 6, , Nov , ,834 5, , Nov , ,314 4, ,174 6, Nov , ,978 7, ,798 7, Nov , Nov , Nov , ,046 5, ,622 7, Nov , ,952 5, ,677 6, Nov , ,500 5, ,460 6, Nov , ,570 5, , Nov , ,090 5, , Nov Dec Dec , ,612 6, ,527 3-Dec , ,950 5, ,002 7,593 4-Dec , ,050 4, ,884 5-Dec , ,044 5, ,204 6-Dec , ,424 7, ,096 8,351 7-Dec ,136 8-Dec Dec , ,300 3, , Dec , ,594 3, , Dec , ,748 6, , Dec , ,740 6, , Dec , ,288 7, ,108 8, Dec , Dec , Dec , ,554 6, ,000 4, Dec , ,990 5, ,040 4, Dec , ,344 5, ,872 5, Dec , ,714 2, ,754 5, Dec , , ,602 4, Dec , Dec Dec , ,580 7, ,038 6, Dec Dec , Dec , ,656 7, ,067 6, Dec-13 1, , Dec , Dec Dec , Dec ,544 TOTAL 231, , , ,925 AVERAGE , ,414 5, ,098 7,421 MAX , ,980 10, ,708 12,094 MIN , , ,357 # OF SAMPLES Page 31 of 89

33 GREENWAY PCP SLUDGE ANALYSES DATE SOLIDS Cd Cr Cu Fe Ni Zn Pb Mn Al PHOSPHOROUS POTASSIUM ARSENIC (percent) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) 2-Jan Feb , Mar Apr ,100 1-May ,410 5-Jun , Jul , , Aug ,330 4-Sep , Oct , ,330 4-Nov , Dec , AVERAGE , LIMITS FOR LAND APPLICATION (MG/KG OF SOLIDS) 34 2,800 1, ,200 1, ACTUAL , ,999 24,605 4,796 5 Page 32 of 89

34 GREENWAY PCP SLUDGE ANALYSES continued DATE 2-Jan Feb-13 5-Mar-13 2-Apr-13 1-May-13 5-Jun Jul Aug-13 4-Sep-13 2-Oct-13 4-Nov-13 2-Dec-13 COBALT MERCURY MOLYBDENUM SELENIUM AMMONIA TKN NITRATE PHENOLS Hexa valent Cr TOC (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) % ,240 <50 <1 < AVERAGE (MG/KG OF SOLIDS) ACTUAL ,240 <50 <1 < LIMITS FOR LAND APPLICATION ,649 <1034 <20.7 <2.1 3,390 Page 33 of 89

35 2013 INCINERATION OPERATION RECORD CITY OF LONDON POLLUTION CONTROL OPERATIONS DIVISION-LABORATORY SERVICES ENVIRONMENTAL SERVICES DEPARTMENT MONTH FLUID BED INCINERATOR TO BIOSET TOTAL SOLIDS TOTAL TOTAL GAS GAS COSTS HOURS TOTAL OIL OIL COSTS TOTAL TOTAL CAKE CONTENT DRY SOLIDS GAS CONSUMPTION PER TONNE OPERATED OIL X 10 CONSUMPTION PER TON DRY SOLIDS (TONNES) % (TONNES) (CU. M.) (CU. M./TDS) DRY SOLIDS (LITRES) (LITERS/TDS) DRY SOLIDS (TONNES) (TONNES) JANUARY 8, , $ FEBRUARY 6, , $ MARCH 6, , $ APRIL 5, , $ , MAY 5, , $ JUNE JULY 3, $ AUGUST 4, $ SEPTEMBER 4, $ OCTOBER 3, $ , NOVEMBER 4, , $ DECEMBER 4, $ TOTAL 57,318 14, ,576 7, ,574 1,095 AVERAGE 5, , $ TOTAL GAS CONSUMPTION (CU. FT.) 7,715,764 TOTAL OIL CONSUMPTION (LITERS) 0 Sludge processed in BIOSET 4,574 TONNES WET Page 34 of 89

36 2013 INCINERATION OPERATION RECORD CITY OF LONDON POLLUTION CONTROL ENGINEERING DIVISION - LABORATORY SERV GAS COSTS: $0.38 /CU. M. ENVIRONMENTAL SERVICES DEPARTMENT #2 DIESEL FUEL COST $ /LITER DATE FLUID BED INCINERATOR BIOSET HAULED TOTAL SOLIDS TOTAL TOTAL GAS GAS COSTS HOURS TOTAL OIL OIL COSTS TOTAL TOTAL CAKE CONTENT DRY SOLIDS GAS CONSUMPTION PER TON OPERATED OIL X 10 CONSUMPTION PER TON DRY SOLIDS (TONNES) % (TONNES) (CU. M.) (CU. M./TDS) DRY SOLIDS (LITERS) (LITERS/TDS) DRY SOLIDS (TONNES) (TONNES) 1-Jan , $ Jan , $ Jan $ Jan , $ Jan , $ Jan , $ Jan-13 8-Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Jan , $ Feb , $ Feb , $ Feb , $ Feb-13 2,015 5-Feb , $ Feb , $ Feb , $ Feb , $ Feb , $ Feb , $ Feb , $ Feb , $ Feb , $ Feb , $ Feb , $ Feb , $ Feb , $ Feb , $ Feb-13 1, Feb , $ Feb , $ Feb , $ Feb , $ Feb , $ Feb , $ Feb , $ Feb , $ Feb , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Page 35 of 89

37 2013 INCINERATION OPERATION RECORD CITY OF LONDON POLLUTION CONTROL ENGINEERING DIVISION - LABORATORY SERV GAS COSTS: $0.38 /CU. M. ENVIRONMENTAL SERVICES DEPARTMENT #2 DIESEL FUEL COST $ /LITER DATE FLUID BED INCINERATOR BIOSET HAULED TOTAL SOLIDS TOTAL TOTAL GAS GAS COSTS HOURS TOTAL OIL OIL COSTS TOTAL TOTAL CAKE CONTENT DRY SOLIDS GAS CONSUMPTION PER TON OPERATED OIL X 10 CONSUMPTION PER TON DRY SOLIDS (TONNES) % (TONNES) (CU. M.) (CU. M./TDS) DRY SOLIDS (LITERS) (LITERS/TDS) DRY SOLIDS (TONNES) (TONNES) 18-Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Mar , $ Apr , $ Apr , $ Apr , $ Apr , $ Apr , $ Apr $ Apr Apr Apr Apr Apr Apr , Apr , Apr , $ Apr , $ Apr , $ Apr , $ Apr , $ Apr , $ Apr , $ Apr , $ Apr , $ Apr , $ Apr , $ Apr , $ Apr , $ Apr , $ Apr , $ Apr , $ Apr , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May , $ May-13 4, May-13 1, May , $ May , $ May , $ May-13 2, May-13 3, Jun Page 36 of 89

38 2013 INCINERATION OPERATION RECORD CITY OF LONDON POLLUTION CONTROL ENGINEERING DIVISION - LABORATORY SERV GAS COSTS: $0.38 /CU. M. ENVIRONMENTAL SERVICES DEPARTMENT #2 DIESEL FUEL COST $ /LITER DATE FLUID BED INCINERATOR BIOSET HAULED TOTAL SOLIDS TOTAL TOTAL GAS GAS COSTS HOURS TOTAL OIL OIL COSTS TOTAL TOTAL CAKE CONTENT DRY SOLIDS GAS CONSUMPTION PER TON OPERATED OIL X 10 CONSUMPTION PER TON DRY SOLIDS (TONNES) % (TONNES) (CU. M.) (CU. M./TDS) DRY SOLIDS (LITERS) (LITERS/TDS) DRY SOLIDS (TONNES) (TONNES) 2-Jun-13 1, Jun-13 3, Jun Jun Jun-13 1, Jun Jun Jun-13 1, Jun-13 1, Jun-13 1, Jun Jun Jun Jun Jun Jun-13 1, Jun Jun Jun Jun-13 1, Jun Jun Jun Jun Jun Jun Jun Jun Jun Jul-13 1, Jul-13 2,218 3-Jul-13 1,727 4-Jul-13 2, Jul $ Jul $ Jul $ Jul $ Jul $ Jul $ Jul , $ Jul , $ Jul $ Jul , $ Jul $ Jul $ Jul $ Jul $ Jul $ Jul $ Jul , $ Jul $ Jul Jul-13 1, Jul $ Jul , $ Jul $ Jul ,626 9 $ Jul $ Jul $ Jul $ Aug $ Aug , $ Aug , $ Aug $ Aug $ Aug $ Aug $ Aug , $ Aug $ Aug $ Aug $ Aug $ Aug $ Aug , $ Aug , $ Aug $ Page 37 of 89

39 2013 INCINERATION OPERATION RECORD CITY OF LONDON POLLUTION CONTROL ENGINEERING DIVISION - LABORATORY SERV GAS COSTS: $0.38 /CU. M. ENVIRONMENTAL SERVICES DEPARTMENT #2 DIESEL FUEL COST $ /LITER DATE FLUID BED INCINERATOR BIOSET HAULED TOTAL SOLIDS TOTAL TOTAL GAS GAS COSTS HOURS TOTAL OIL OIL COSTS TOTAL TOTAL CAKE CONTENT DRY SOLIDS GAS CONSUMPTION PER TON OPERATED OIL X 10 CONSUMPTION PER TON DRY SOLIDS (TONNES) % (TONNES) (CU. M.) (CU. M./TDS) DRY SOLIDS (LITERS) (LITERS/TDS) DRY SOLIDS (TONNES) (TONNES) 17-Aug $ Aug $ Aug $ Aug $ Aug , $ Aug $ Aug $ Aug $ Aug $ Aug $ Aug $ Aug $ Aug $ Aug $ Aug $ Sep Sep Sep $ Sep $ Sep $ Sep $ Sep $ Sep $ Sep $ Sep , $ Sep $ Sep $ Sep $ Sep $ Sep $ Sep , $ Sep $ Sep , $ Sep $ Sep , $ Sep $ Sep , $ Sep , $ Sep $ Sep $ Sep , $ Sep $ Sep $ Sep $ Sep Oct $ Oct $ Oct $ Oct , $ Oct , $ Oct $ Oct , $ Oct $ Oct , $ Oct , $ Oct $ Oct $ Oct $ Oct $ Oct $ Oct , $ Oct , $ Oct , $ Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Oct Page 38 of 89

40 2013 INCINERATION OPERATION RECORD CITY OF LONDON POLLUTION CONTROL ENGINEERING DIVISION - LABORATORY SERV GAS COSTS: $0.38 /CU. M. ENVIRONMENTAL SERVICES DEPARTMENT #2 DIESEL FUEL COST $ /LITER DATE FLUID BED INCINERATOR BIOSET HAULED TOTAL SOLIDS TOTAL TOTAL GAS GAS COSTS HOURS TOTAL OIL OIL COSTS TOTAL TOTAL CAKE CONTENT DRY SOLIDS GAS CONSUMPTION PER TON OPERATED OIL X 10 CONSUMPTION PER TON DRY SOLIDS (TONNES) % (TONNES) (CU. M.) (CU. M./TDS) DRY SOLIDS (LITERS) (LITERS/TDS) DRY SOLIDS (TONNES) (TONNES) 1-Nov Nov , Nov ,121 2,596 $ Nov , $ Nov , $ Nov $ Nov $ Nov $ Nov , $ Nov $ Nov $ Nov $ Nov $ Nov $ Nov , $ Nov $ Nov $ Nov $ Nov , $ Nov , $ Nov $ Nov $ Nov $ Nov , $ Nov $ Nov $ Nov $ Nov $ Nov $ Nov $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec , $ Dec $ Dec , $ Dec , $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec $ Dec $ TOTAL 57,318 14, ,576 7,665 4,574 1,095 AVERAGE , $ Page 39 of 89

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