MACTIER WASTEWATER TREATMENT 2016 SUMMARY REPORT

Transcription

1 MACTIER WASTEWATER TREATMENT 2016 SUMMARY REPORT CERTIFICATE OF APPROVAL: # PCKPU

2 INTRODUCTION The Conger Marsh Water Pollution Control Plant (WPCP), which services the community of MacTier, is owned and operated by the District Municipality of Muskoka. The plant is located at 20 Conger Marsh Lane, MacTier and currently serves approximately 240 people. The Plant operates under the MOE Certificate of Approval (Sewage) # PCKPU issued February 18, 2009 and MOE Certificate of Approval (Air) # WJB7 issued on December 22, Under the terms of the ECA, the average rated capacity of the plant is 691 cubic meters per day (m3/day). The treatment plant began treating sewage from the MacTier wastewater collection system in Located at the treatment plant site are 2 ICEAS Sequencing Batch Reactors with total a rated design capacity of 691 m 3 /day giving a total peak design flow rate of 2,300 m 3 /day. Additionally, effluent noncompliance criteria are as follows: Effluent Parameter CBOD5 Suspended Solids Total Phosphorous Ammonia/Ammonia Nitrogen Concentration 10 mg/l 10 mg/l 0.50 mg/l 2.0 mg/l (April - October) 4.0 mg/l (November - March) E. Coli *100 CFU / ml ph inclusive at all times *(Monthly Geometric Mean Density) The treatment process is comprised of 2 sequencing batch reactors, phosphorous precipitation using aluminum sulphate, effluent tertiary filtration and ultraviolet disinfection. Treated effluent from the plant is discharged through a 300 mm effluent outfall line and discharge structure located in Conger Marsh. Waste sludge from the plant process is digested aerobically at the plant, and is periodically hauled off site for disposal. All pumping stations and treatment control systems use SCADA (Supervisor Control And Data Acquisition), in combination with Data Highway Plus, and programmable logic controllers.

3 Executive Summary In all respects, test results of the treated effluent for the parameters of CBOD5, Suspended Solids, Ammonia, Total Phosphorous, and E. Coli are in compliance with the limits outlined in the ECA regarding monthly allowable concentrations and total effluent loading throughout the entire year. Overall, the plant treatment processes performed satisfactorily and are deemed to be adequate. All sample test results of the final effluent were within levels outlined in the plant ECA # PCKPU. Quantity of Flow Summary The plant has a daily average flow design capacity of 691 m 3 /day. The actual average daily flow for the year was 152 m 3 /day, however, the 3-year average is 146 m 3 /day, which represents 21% of the plant capacity Plant Operational Upsets or Process Failures There were no operational problems of note in Raw Sewage The information reported in the Raw Sewage sample results summary table consists of test results of analysis conducted on composite samples of the plant influent flow. Samples are sent for analysis to Lakefield Research and weekly analysis has been performed and reported as specified under the terms outlined in the ECA. Interpretation of Final Effluent Analysis The information reported in the Final Effluent sample results summary table consists of test results of analysis conducted on final effluent composite samples. Bacteriological samples, however, consisted of grab samples. Weekly analysis has been performed and reported as specified under the terms outlined in the ECA. Final Effluent Analysis Summary Minimum 4 Week Annual CBOD5 (mg/l) Suspended Solids (mg/l) Total Phosphorous (mg/l) Ammonia (mg/l) E. Coli (#/100 ml) ph Min 7.31 Max

4 Efforts and Results towards meeting Effluent Objectives A review of the District of Muskoka s infrastructure needs is conducted annually by the Director of Water and Wastewater Operations, Area Manager and Chief Operator and recommendations for maintenance, rehabilitation and renewal programs are considered Efforts to eliminate the discharge of untreated or partially treated wastewater to receiving waters are being accomplished by a long term financial commitment to correct excessive infiltration into the wastewater collection system by means of sewer main rehabilitation / replacement, manhole rehabilitation and pumping station rehabilitation programmes. The treatment facility is capable of effective operation during emergencies, maintenance shut downs, and power failures. This is achieved through such measures as preventive maintenance of duty / standby units, the duplication of major treatment components, the provision of standby power sources and extensive use of the SCADA systems. All operators are qualified to operate the systems efficiently and effectively in order to achieve the highest level of treatment at all times; a commitment to provide Operator training and certification is being sustained. Regulatory sampling is carried out to meet the requirements outlined in the ECA. Additional in house operational sampling beyond these regulatory requirements is being performed on a routine basis, These efforts have resulted in an effective treatment process which ensures that effluent discharges consistently meet effluent objectives and are environmentally safe. Methods & Protocols for Sampling, Analysis & Recording Results All Sampling, analysis & recording of results for the MacTier WPCP conforms, in order of precedence, to the following 3 standards: Ministry s Procedure F-10-1, Procedures for Sampling & Analysis Requirements for Municipal & Private Sewage Treatment Works, Ministry s publication Protocol for the Sampling & Analysis of Industrial/Municipal Wastewater and the AWWA/WEF publication Standard Methods for the Examination of Water & Wastewater. Preventative Maintenance & Calibration Monitoring equipment includes flow measuring devices and various on-line parameter instrumentation devices (dissolved oxygen). The on-line instrumentation is maintained and calibrated in accordance with manufacturer s recommendations. All flow-measuring devices were calibrated in (Reports available upon request).

5 Summary of Maintenance and Major Infrastructure There were no significant plant upgrades on major infrastructure in All equipment information at the MacTier Water Pollution Control Plant is entered into a computer database. From this information, a scheduled preventive maintenance programme has been established. The maintenance programme includes (and not limited to): Monthly testing of emergency testing (under load) of the standby generators. Annual servicing of emergency standby generators. Annual replacement of U.V. bulbs. Annual infrared inspection of Motor Control panels. Annual calibration of flow metering devices. Annual cleaning of all sewage pumping stations. Evaluation of the Need for Improvement Works The treatment facility is operating at a plant capacity of 21% and is in compliance with specified effluent parameter criteria. In addition, there has been no significant treatment process upsets and plant bypasses. As a result, there is no need for improvements to the existing works. Summary of Proposed Works Requiring Approval under OWRA Since the treatment facility is operating satisfactorily there is no anticipated works requiring an ECA amendment for Treatment Unit Bypasses There were no treatment unit bypasses in Effluent Quality Assurance Measures In addition to the plant sampling and monitoring protocols required by the ECA, inhouse plant-wide sampling and analysis is also conducted. This in-house sampling program provides assurance that the various treatment processes continue to operate at a high performance level. Biosolids Generation The quality of biosolids is provided in the attached table, and the volume of biosolids hauled from the facility for disposal is provided as well. Liquid biosolids from the plant were hauled to the Gravenhurst Water Pollution Control Plant for further treatment. Private contractors were used by the District of Muskoka to transfer all material in 2016, and will continue to do so in 2017 as well. It is not anticipated that there will be a significant increase in the total volume of biosolids produced in 2016.

6 Certification of Reports I certify that the information in this document and all attachments are correct, accurate and complete to the best of my knowledge. Marcus Firman, C.E.T. Director of Water and Wastewater Operations Lee Gillan Manager of Water and Wastewater Operations

7 2016 MACTIER WASTEWATER COLLECTION SUMMARY New Sewer Mains There were no new sewer mains installed in MacTier in New Services There were no new sewer services installed in MacTier in Sewer Lateral Blockages There were no sewer lateral blockages in MacTier in Sewer Pump Stations Both the Beech Avenue and Curling Club Road pumping stations were cleaned. Main Line Sewer Blockages The main sewer line at MH B19 found to be was blocked with grease. The main was immediately flushed and cleaned by a high pressure vacuum truck. Sewer Forcemains There were no forcemain repairs required in Air Release Valves All 5 air release valves were drained, operated and inspected in One Air Release Valve has been removed for service. Sewer Flushing and Video Inspections 964 meters of the collection system were flushed in 2016 using high-pressure equipment. Closed circuit television inspections on 275 meters of the flushed mains ensured that the flushing met our specified contract requirements of having a minimum of 95% cleanliness. Sewer Rehabilitation There was no sewer rehabilitation was undertaken in The Beech Ave and Curling Club Rd pumping stations were cleaned.

8 TABLE 1: EFFLUENT FLOW SUMMARY District of Muskoka - Conger Marsh WPCP - Mactier Month Total Monthly (m 3 ) Day Flow (m 3 /d) Day Flow (m 3 /d) Minimum Day Flow (m 3 /d) Comments January 4, February 4, March 6, April 5, May 3, June 3, July 4, August 4, September 4, October 4, November 4, December 4, Total 55,647 Day 152 Day 515 Minimum Day 48

9 TABLE 3: INFLUENT QUARTERLY ANALYSIS SUMMARY District of Muskoka - Conger Marsh WPCP - Mactier Sample Identification Number Weekly 24 Hour Composite Sample Alkalinity (Total as CaCO3) ph Phosphate Sample Date Total BOD5 Phosphorus mg/l mg/l mg/l mg/l mg/l Feb CA May-16 CA Aug-16 CA Nov-16 CA Yearly Minimum Suspended Solids Weekly 24 Hour Composite Sample Sample Date Total Kjeldahl Nitrate Nitrite Total Ammonia Conductivity Nitrogen Nitrogen Nitrogen Nitrogen Chloride mg/l mg/l mg/l mg/l mg/l mg/l Feb May Aug Nov Yearly Minimum

10 TABLE 6: EFFLUENT QUARTERLY ANALYSIS SUMMARY District of Muskoka - Conger Marsh WPCP - Mactier Sample Identification Number Alkalinity (Total as CaCO3) ph Phosphate Sample Date Total CBOD5 Phosphorus mg/l mg/l mg/l mg/l mg/l Feb CA <2 2-May-16 CA <2 2-Aug-16 CA Nov-16 CA12165 < < Suspended Solids Yearly < <0.05 < Minimum < <0.03 <2 Conductivity Total Kjeldahl Nitrogen Nitrate Nitrogen Nitrite Nitrogen Total Ammonia Nitrogen Chloride Sample Date mg/l mg/l mg/l mg/l mg/l mg/l Feb < May-16 < Aug-16 < Nov < Yearly < < Minimum < <

11 TABLE 4: CHEMICAL USAGE SUMMARY District of Muskoka - Conger Marsh WPCP - Mactier ALUM SODA ASH SODIUM HYPOCHLORITE POLYMER Month Dosage mg/l Total kg Dosage mg/l Total kg Dosage mg/l Total kg Dosage mg/l Total kg January February March April May June July August September October November December Monthly Total Yearly 7,952 8,

12 TABLE 7: EFFLUENT LOADING and CONCENTRATION SUMMARY District of Muskoka - Conger Marsh WPCP - Mactier MONTH CBOD 5 SUSPENDED SOLIDS TOTAL AMMONIA NITROGEN TKN E.COLI TOTAL PHOSPHOROUS Daily Daily Summer (May to Oct) Daily Winter (Nov to Apr) Daily mg/l kg/d kg/d mg/l kg/d kg/d mg/l kg/d kg/d mg/l kg/d kg/d mg/l kg/d kg/d Daily #cfu/100 ml Daily Daily cfu/100 ml mg/l kg/d kg/d January ~ ~ ~ February ~ ~ ~ March ~ ~ ~ April ~ ~ ~ May ~ ~ ~ June ~ ~ ~ July ~ ~ ~ August ~ ~ ~ September ~ ~ ~ October ~ ~ ~ November ~ ~ ~ December ~ ~ ~ Monthly Yearly Effluent Objective Non- Compliance ~ ~ ~ <5 <5 <1 <1 < Note: Bracketed and Bolded Values indicate non-compliance ( )

13 TABLE 9: LIQUID BIOSOLIDS PRODUCTION SUMMARY District of Muskoka - Conger Marsh WPCP - Mactier No. Date Hauler Shipped To Received From Comments Location Volume Location Volume 1 January 2 February 3 March 4 April 5 May AAAA Gravenhurst PCP June AAAA Gravenhurst PCP 77 7 July 8 August 9 September 10 October 11 November 12 December Yearly Total Yearly Minimum

14 TABLE 10: BIOSOLIDS QUALITY ANALYSIS District of Muskoka - Conger Marsh WPCP - Mactier Quaterly Analysis Parameter Sampled Comments Date Feb May Aug Nov Sample ID CA12035 CA12086 CA12057 CA12202 Nitrate mg/l Mercury mg/l < Chromium mg/l Cobalt mg/l Copper mg/l Lead mg/l < Molybdenum mg/l Nickel mg/l Selenium mg/l <0.1 <0.1 <.1 <0.1 <0.1 Arsenic mg/l <0.1 < 0.1 <.1 < Zinc mg/l Cadmium mg/l < Ammonia mg/l < Total Kjeldahl Nitrogen mg/l Total Phosphorus mg/l Total Solids mg/l