Dundalk Wastewater Treatment Plant

Township of Southgate Dundalk Wastewater Treatment Plant 2016 Annual Report Jim Ellis Public Works Manager

Dundalk Wastewater Treatment Plant 2016 Annual Report Table of Contents Wastewater Treatment Plant Annual Overview..1 2016 General Wastewater Information. 4 Loading Report.. 5 Performance Report.. 6 Final Effluent Discharge Report 7 Raw Sewage Parameters and Lab Results. 8 Final Effluent Parameters and Lab Results. 9

Overview: The Dundalk Wastewater Treatment Plant (WWTP) provided treatment in 2016 with all effluent concentrations limits being met on an annual average. The annual average influent daily flow was 986 m³/day. Project Description: The Dundalk WWTP is a four cell waste stabilization pond facility flowing into an aeration cell pond with a chemical feed system and a flocculation tank with tertiary treatment consisting of sand filters. Plant Facts: Facilities: Design Capacity: Receiver Water: Environmental Compliance Approval: Effluent Requirements: Sampling Requirements: Waste Stabilization Ponds with Tertiary Treatment 1832 m³/day Foley Drain/Grand River 5657-9D9LYE CBOD SS DO T.Phos. when temperature >5 C T.Phos. when temperature <5 C Unionized Ammonia mg/l 10 mg/l 10 mg/l 4 mg/l 0.4 mg/l 0.8 mg/l 0.1 mg/l Sampling criteria for this system is in accordance with Ministry policy and the Environmental Compliance Approval (ECA) Final Effluent: A grab sample is taken twice a month and tested for CBOD, Suspended Solids, Total Phosphorus, Total Ammonia Nitrogen, Ecoli, ph and temperature. On site testing is performed twice a week on final effluent for Total Ammonia to determine Unionized Ammonia through lab testing, ph, temperature and Dissolved Oxygen. Raw Sewage: A grab sample is taken monthly and tested for BOD, Suspended Solids, Total Kjeldahl Nitrogen and Total Phosphorus. Effluent Flows: The total effluent flow treated in 2016 was 334,685 m³. The annual average daily flow was 1090 m³/day, which results in a 14.13% decrease of total effluent over 2015. 1

Raw Sewage Quality: Annual average raw sewage BOD concentration to the lagoon system was 164.5 mg/l. Annual average raw sewage suspended solids (TSS) concentration to the lagoon system was 204.4 mg/l. Annual average raw total phosphorus was 3.66 mg/l concentration to the lagoon system. Annual average Total Kjeldahl Nitrogen (TKN) concentration was 35.5 mg/l. Plant Performance and Effluent Quality: The Influent annual flow in 2016 has increased 35.44% over 2015 flows. Annual average effluent CBOD concentration was 2.5 mg/l. Annual average effluent total suspended solids (TSS) concentration was 3.2 mg/l day with a removal efficiency of 89.78 % with an annual monthly average loading of 3.7 kg/day. Annual average effluent total phosphorus concentration was 0.06 mg/l day with a removal efficiency of 90.04% with an annual monthly average loading of 0.1 kg/day. Annual average effluent concentration for Ammonia-nitrogen was 1.46 mg/l. Annual average Unionized Ammonia was 0.006470 mg/l. Annual average ph was 8.00. Annual monthly average Ecoli was 16 with the low being 2 and the high being 67. The summary for 2016 of the data for the systems plant operation performance is enclosed in this report. Maintenance and Calibration Activities: Regular monthly preventative maintenance and calibration of test equipment and flow meters are performed by municipal staff and outside certified suppliers. In March 2016 the influent pump #3 was replaced with a new pump. In July 2016 the blower line and diffusers in the aeration pond were replaced by Finbuilt. In July 2016 the UPS was replaced in the filter and blower buildings. In September 2016 a new hour counter was installed on the blower in the Aeration Building. In October 2016 the alum dosage was changed from 12.8 L/D to 4.0 L/D at the Filter Building. 2

There were no by-pass events to report. There were two operator shutdowns in 2016: On May 26, 2016 the Filter Building was shut down for draining of the aeration pond for inspection of airlines. The system started up on May 30, 2016. On June 22, 2016 the system was shut down due to PH levels testing to high. The system started up on August 17, 2016. During this time, the aeration system was replaced with new blower lines and diffusers. Discussion: The Bishop Water Technologies pilot project with the installation of bio-cord reactors in cell # 4 was completed in August 2016. An environmental assessment was initiated for the Dundalk Sewage Works, to determine methods and expansion to meet future development needs. 3

Township of Southgate - Village of Dundalk 2016 General Wastewater Information Plant # : 0-101006-67 ECA # : 5657-9D9LYE Population: 1681 (Village of Dundalk) Flows Design 2016 2015 2014 2013 2012 2011 2010 2009 2008 Capacity: 208,500 - - - - - Influent Average Daily: - m3 986 728 996 2,221 1,183 1,164 1,020 1,217 1,482 Annual Influent Flow: 668,600 m3 360,118 265,878 364,601 808,274 434,232 425,447 372,117 444,350 542,455 Influent Maximum Daily: - m3 4,820 2,458 2,873 3,991 3,926 4,453 4,390 4,258 4,577 Effluent Average Daily: 1,832 m3 1,090 1,181 1,636 1,394 1,136 1,332 1,245 1,466 1,631 Annual Effluent Flow: - m3 334,685 389,776 494,185 505,962 369,351 435,622 434,339 535,214 597,173 % Discharge vs. Total Capacity: - 50.1% 58.3% 73.9% 75.7% 55.2% 65.2% 65.0% 80.0% 89.3% Influent Increase 2016 over 2015: - 35.44% -27.08% -54.89% 86.14% 2.06% 14.33% -16.26% -18.09% 35.54% Effluent Decrease 2016 over 2015: - -14.13% -21.13% -2.33% 36.99% -15.21% 0.30% -18.85% -10.38% 62.28% 4

Township of Southgate Loading Report - Dundalk Wastewater Plant Municipality: Township of Southgate Year: 2016 Plant: Dundalk Wastewater Treatment Lagoons & Collection System Plant # : 0-101006-67 Works # : 110001471 System Description : Faculative Lagoons & Sand Filters Loading Influent Effluent Loading Effluent Effluent Effluent BOD SS T Phos. CBOD SS T Phos. Month kg/day kg/day kg/day kg/day kg/day kg/day January 210.3 165.4 3.2 2.8 2.8 0.0 February 114.4 103.4 2.5 3.0 3.0 0.0 March 289.4 338.4 7.2 5.7 7.8 0.1 April 128.3 149.7 2.1 4.8 8.1 0.1 May 102.9 171.6 2.8 5.5 6.4 0.1 June 102.3 144.6 2.8 3.1 4.3 0.2 July 94.2 91.5 2.3 n/a n/a n/a August 141.8 155.0 2.6 2.2 3.6 0.0 September 104.6 109.7 1.6 1.0 1.0 0.0 October 113.9 194.8 3.4 1.4 1.4 0.1 November 106.5 156.0 2.2 1.1 1.1 0.0 December 105.1 156.8 2.6 0.5 0.5 0.0 Total 1613.8 1937.0 35.4 31.2 40.2 0.7 Average 134.5 161.4 2.9 2.8 3.7 0.1 Maximum 289.4 338.4 7.2 5.7 8.1 0.2 5

Municipality: Township of Southgate Plant: Dundalk Wastewater Treatment Lagoons & Collection System Year: 2016 Plant # : 0-101006-67 Receiver: Foley Drain - Grand River Works # : 110001471 Design Average Day Flow (m3): 1832 System Description : Faculative Lagoons & Sand Filters January 43473 1402 2171 44030 31 150.0 2.0 98.67% 118.0 2.0 98.31% 2.30 0.03 98.70% 2 0.1 20.4 1.10 0.002719 2.8 2.8 0.0 February 45446 1567 2366 43692 29 73.0 2.0 97.26% 66.0 2.0 96.97% 1.60 0.03 98.13% 23 0.6 15.4 4.15 0.012180 3.0 3.0 0.0 March 72369 2334 4820 44179 31 124.0 4.0 96.77% 145.0 5.5 96.21% 3.10 0.04 98.71% 67 2.3 28.5 6.25 0.011807 5.7 7.8 0.1 April 53454 1782 3752 48343 30 72.0 3.0 95.83% 84.0 5.0 94.05% 1.20 0.04 96.67% 2 6.6 12.1 3.05 0.006414 4.8 8.1 0.1 May 25322 817 1087 49229 27 126.0 3.0 97.62% 210.0 3.5 98.33% 3.40 0.03 99.12% 6 13.8 37.3 0.13 0.001881 5.5 6.4 0.1 June 17610 587 851 35643 23 174.3 2.0 98.85% 246.3 2.8 98.86% 4.70 0.15 96.81% 4 19.2 41.2 0.13 0.031625 3.1 4.3 0.2 July 12289 396 486 n/a 0 238.0 n/a 0.00% 231.0 n/a 0.00% 5.80 n/a 0.00% n/a 20.5 44.9 n/a n/a n/a n/a n/a August 15815 510 1257 7707 14 278.0 4.0 98.56% 304.0 6.6 97.83% 5.10 0.07 98.63% 25 21.5 62.2 0.13 0.003314 2.2 3.6 0.0 September 14020 467 556 14810 30 224.0 2.0 99.11% 235.0 2.0 99.15% 3.40 0.05 98.53% 41 19.5 29.0 0.85 0.000273 1.0 1.0 0.0 October 16278 525 698 21546 31 217.0 2.0 99.08% 371.0 2.0 99.46% 6.50 0.08 98.77% 2 11.8 64.1 0.10 0.000239 1.4 1.4 0.1 November 18576 619 1024 17095 30 172.0 2.0 98.84% 252.0 2.0 99.21% 3.60 0.06 98.33% 2 4.8 37.7 0.10 0.000167 1.1 1.1 0.0 December 25466 821 1425 8411 31 128.0 2.0 98.44% 191.0 2.0 98.95% 3.20 0.06 98.13% 2 0.7 32.7 0.10 0.000546 0.5 0.5 0.0 Average 30010 986 30426 164.7 2.5 89.92% 204.4 3.2 89.78% 3.66 0.06 90.04% 16 10.1 35.5 1.46 0.006470 2.8 3.7 0.1 Maximum 72369 2334 4820 49229 278.0 4.0 371.0 6.6 6.50 0.15 67 21.5 64.1 6.25 0.031625 5.7 8.1 0.2 Township of Southgate Performance Report - Dundalk Wastewater Plant Flows Discharge Bio-Chemical Oxygen Demand Suspended Solids Phosphorus E Coli Temperature Nitrogen Series Loading Raw Effluent Duration Avg. Raw Avg Effluent Percent Avg. Raw Avg. Effluent Percent Avg. Raw Avg. Effluent Percent average < 5 C. TKN Avg. Effluent Unionized Effluent Effluent Effluent Total Flow Avg. Flow Max. Flow Total Flow BOD CBOD Removal SS SS Removal T. Phos T. Phos Removal Effluent or NH3 + NH4 Ammonia CBOD SS T Phos. Month m3 m3 m3 m3 Days mg/l mg/l mg/l mg/l mg/l mg/l Count > 5 C. mg/l mg/l mg/l kg/day kg/day kg/day Total 360118 334685 307.0 6

Discharge Total Total Average Average Average Average Average E Coli Average Average Average Duration Effluent Coagulant Coagulant CBOD SS T. Phos. NH3 + NH4 average ph Temp. D.O. Month Days m3 Used (kg) Dosage (mg/l) mg/l mg/l mg/l as N (mg/l) Count Lab Reports C mg/l January 31 44030 1.55 22.9 2.0 2.0 0.03 1.10 2 7.90 0.10 10.91 February 29 43692 1.45 21.6 2.0 2.0 0.03 4.15 23 7.67 0.60 10.17 March 31 44179 1.55 22.8 4.0 5.5 0.04 6.25 67 7.85 2.30 10.93 April 30 48343 1.50 20.2 3.0 5.0 0.04 3.05 2 8.07 6.60 10.73 May 27 49229 1.35 17.8 3.0 3.5 0.03 0.13 6 8.01 13.80 8.79 June 23 35643 1.15 21.0 2.0 2.8 0.15 0.13 4 8.96 19.20 6.22 July 0 n/a 0.00 n/a n/a n/a n/a n/a n/a n/a 20.50 0.00 August 14 7707 0.70 59.0 4.0 6.6 0.07 0.13 25 7.64 21.50 6.68 September 30 14810 1.50 65.8 2.0 2.0 0.05 0.85 41 7.55 19.50 8.30 October 31 21546 1.55 46.8 2.0 2.0 0.08 0.10 2 8.10 11.80 9.93 November 30 17095 1.50 57.0 2.0 2.0 0.06 0.10 2 8.12 4.80 12.32 December 31 8411 1.55 119.8 2.0 2.0 0.06 0.10 2 8.15 0.70 13.90 Average 30426 1.28 43.15 2.55 3.22 0.06 1.46 16 8.00 10.12 9.07 Maximum 49229 4 6.6 0.15 6.25 67 8.96 21.50 13.90 Plant: Dundalk Wastewater Treatment Lagoons & Collection System Works: 110001471 Year: 2016 Location Type: Final Effluent Discharge Report Township of Southgate Annual Report - Dundalk Wastewater Plant Total 307 334685 15.35 7

Township of Southgate - Village of Dundalk Annual Report - Dundalk Wastewater Plant Plant: Dundalk Wastewater Treatment Lagoons & Collection System Year: 2016 Works: 110001471 Population Served: 1681 Classification: Class 1 Wastewater Collection & Class 1 Wastewater Treatment Receiver Foley Drain to Grand River Raw Sewage Parameters January February March April May June July August September October November December Summary Average 150 73 124 72 124.5 166.5 238 278 224 217 172 128 164 BOD Minimum 150 73 124 72 106 127 238 278 224 217 172 128 159 mg/l Maximum 150 73 124 72 143 206 238 278 224 217 172 128 169 Suspended Average 118 66 145 84 209 258 231 304 235 371 252 191 205 Solids Minimum 118 66 145 84 177 224 231 304 235 371 252 191 200 mg/l Maximum 118 66 145 84 241 292 231 304 235 371 252 191 211 Average 20.4 15.4 28.5 12.1 36.1 41.0 44.9 62.2 29.0 64.1 37.7 32.7 35.3 TKN Minimum 20.4 15.4 28.5 12.1 30.0 36.1 44.9 62.2 29.0 64.1 37.7 32.7 34.4 mg/l Maximum 20.4 15.4 28.5 12.1 42.1 45.9 44.9 62.2 29.0 64.1 37.7 32.7 36.3 Total Average 2.3 1.63 3.1 1.2 3.23 4.79 5.82 5.11 3.40 6.52 3.57 3.18 3.65 Phosphorus Minimum 2.30 1.63 3.10 1.20 2.26 3.54 5.82 5.11 3.40 6.52 3.57 3.18 3.47 mg/l Maximum 2.30 1.63 3.10 1.20 4.20 6.04 5.82 5.11 3.40 6.52 3.57 3.18 3.84 8

Plant: Dundalk Wastewater Treatment Lagoons & Collection System Year: 2016 Works: 110001471 Population Served: 1681 Classification: Class 1 Wastewater Collection & Class 1 Wastewater Treatment Receiver Foley Drain to Grand River Final Effluent Parameters January February March April May June July August September October November December Summary Average 2.0 2.0 4.0 3.0 4.0 2.0 n/a 5.0 2.0 2.0 2.0 2.0 2.7 CBOD Minimum 2.0 2.0 2.0 2.0 2.0 2.0 n/a 2.0 2.0 2.0 2.0 2.0 2.0 mg/l Maximum 2.0 2.0 6.0 4.0 6.0 2.0 n/a 8.0 2.0 2.0 2.0 2.0 8.0 Suspended Average 2.0 2.0 5.5 5.0 4.5 3.0 n/a 7.5 2.0 2.0 2.0 2.0 3.4 Solids Minimum 2.0 2.0 4.0 2.0 2.0 2.0 n/a 2.0 2.0 2.0 2.0 2.0 2.0 mg/l Maximum 2.0 2.0 7.0 8.0 7.0 4.0 n/a 13.0 2.0 2.0 2.0 2.0 13.0 Average 1.1 4.2 6.3 3.1 0.2 0.2 n/a 0.2 0.1 0.1 0.1 0.1 1.40 NH3 + NH4 Minimum 0.60 3.30 6.10 2.30 0.10 0.10 n/a 0.10 0.10 0.10 0.10 0.10 0.10 mg/l Maximum 1.60 5.00 6.40 3.80 0.20 0.20 n/a 0.20 0.10 0.10 0.10 0.10 6.40 Average 1.85 5.30 7.50 3.35 0.30 0.65 n/a 1.65 0.85 0.90 0.85 1.00 2.20 TKN Minimum 1.40 4.10 6.50 2.60 0.10 0.50 n/a 0.90 0.60 0.90 0.80 0.90 0.10 mg/l Maximum 2.30 6.50 8.50 4.10 0.50 0.80 n/a 2.40 1.10 0.90 0.90 1.10 8.50 Total Average 0.03 0.03 0.04 0.04 0.04 0.14 n/a 0.09 0.05 0.08 0.06 0.06 0.06 Phosphorus Minimum 0.03 0.03 0.04 0.03 0.03 0.04 n/a 0.04 0.04 0.07 0.05 0.04 0.03 mg/l Maximum 0.03 0.03 0.04 0.04 0.04 0.24 n/a 0.14 0.06 0.09 0.06 0.07 0.24 Average 2.00 23.00 67.00 2.00 9.00 4.00 n/a 36.00 40.50 2.00 2.00 2.00 17 Ecoli Minimum 2 2 2 2 2 2 n/a 2 34 2 2 2 2 Maximum 2 44 132 2 16 6 n/a 70 47 2 2 2 132 Average 7.90 7.67 7.85 8.07 8.01 8.70 n/a 7.70 7.55 8.10 8.12 8.15 7.98 ph Minimum 7.88 7.61 7.69 8.05 7.98 8.13 n/a 7.52 7.51 7.98 7.98 7.98 7.51 Maximum 7.91 7.72 8.01 8.09 8.04 9.26 n/a 7.88 7.59 8.21 8.25 8.31 9.26 Average 10.85 10.15 12.05 9.35 6.64 4.88 n/a 7.05 8.40 10.55 12.65 13.40 9.63 DO Minimum 10.00 9.20 9.40 5.40 2.87 0.55 n/a 5.90 6.30 8.40 10.90 12.30 0.55 mg/l Maximum 11.70 11.10 14.70 13.30 10.40 9.20 n/a 8.20 10.50 12.70 14.40 14.50 14.70 Unionized Average 0.002632 0.012643 0.014839 0.006695 0.006836 0.058512 n/a 0.006840 0.000375 0.000720 0.000166 0.000755 0.010092 Ammonia Minimum 0.000697 0.005707 0.005906 0.000288 0.000070 0.000595 n/a 0.000105 0.000051 0.000646 0.000041 0.000000 0.000000 mg/l Maximum 0.004567 0.019579 0.023772 0.013102 0.013603 0.116428 n/a 0.013576 0.000699 0.000793 0.000290 0.001509 0.116428 Township of Southgate - Village of Dundalk Annual Report - Dundalk Wastewater Plant 9