WaterTrax presentation: Are you ready for the MWWE Strategy?
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Canadian wastewater utilities, are you ready for the MWWE (Municipal Wastewater Effluent) Strategy? This presentation outlines the recently endorsed strategy and provides a case study of what Saint John Water is doing to meet the treatment, monitoring, and information requirements of the Strategy
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WaterTrax presentation: Are you ready for the MWWE Strategy?
- 1. Data Management WaterTrax Are you Ready for the MWWES? Andrew Lewis, P.Eng. Director Product Strategy
- 2. GoToWebinar Controls Click the button with the arrows to minimize your GoToWebinar controls Type your questions for us into the box at the bottom and press Send
- 3. Presentation Topics 1. MWWES Monitoring Requirements 2. Saint John Water Case Study • Introduction to Saint John Water • Historical Data Management Practices • Data Management Options • Solution
- 4. MWWE Strategy Biosolids Source Control CSOs WWTPs Stormwater SSOs Within scope of MWWES Receiving Environment
- 5. MWWE Strategy Timeline Feb 2009 Feb 2012 •MWWES endorsed •Revised Provincial/Territorial regulations •Except by PQ, NL, NU •Provincial/Territorial & Federal agreements •Effluent quality being monitored at all WWTPs •All WWTPs meet public reporting requirements Feb 2014 •Mechanism for receiving environment monitoring Dec 2010 •Final Fisheries Act Regulation Dec 2009 •Draft Fisheries Act Regulation Dec 2039 •All WWTPs meet NPS
- 6. MWWE Strategy - NPS National Performance Standards (NPS) • 25 mg/L TSS • 25 mg/L CBOD • 0.02 mg/L TRC • Non-toxic Facility Size Annual Average Daily Flow Basis for TSS and (m3/d) CBOD Compliance Very Small ≤ 500 Quarterly Average Small 500 – 2,500 Quarterly Average Medium 2,500 – 17, 500 Quarterly Average Large 17,500 – 50,000 Monthly Average Very Large > 50,000 Monthly Average
- 7. MWWE Strategy - NPS CSOs • No increase in CSO frequency due to development or redevelopment, unless it occurs as part of an approved combined sewer overflow management plan • No CSOs during dry weather, except during spring thaw and emergencies • Removal of floatable materials where feasible • Monitoring • Occurrence • Frequency • Duration • Volume
- 8. MWWE Strategy – NPS SSOs • No increase in SSO frequency due to development or redevelopment • No SSOs during dry weather, except during spring thaw and emergencies • Monitoring • Occurrence • Frequency • Duration • Volume
- 9. MWWE Strategy – EDOs • Initial wastewater characterization • Receiving environment monitoring • Risk analysis • Establish site-specific EDOs
- 10. MWWE Strategy – EDOs Initial Characterization • Characterize industrial discharges into sewer system • One year WWTP effluent monitoring to determine what’s in the discharge • At end of year, monitor the receiving environment to see if the discharge is harming the environment and/or human health • Applies to all facilities that discharge ≥10 m3/day
- 11. MWWE Strategy – EDOs Initial Characterization WWTP Effluent Monitoring Requirements CBOD5. TSS Substances Facility Acute Chronic TRC1 Pathogens2 and and Test Size Toxicity Toxicity Nutrients3 Groups4 Very Daily Monthly n/a n/a n/a Small Small Daily Monthly n/a Quarterly Quarterly Medium Daily Every two weeks Quarterly Quarterly Quarterly Twice per Large Weekly Quarterly Monthly Monthly day Three Very times per 5 days/week Quarterly Monthly Monthly Large day
- 12. MWWE Strategy – EDOs Initial Characterization Monitoring Requirements 1. TRC only monitored when chlorine is used. If dechlorination agent is used, can monitor for that instead 2. Pathogens could include E-coli 3. Nutrients = Total ammonia, TKN and Total Phosphorous 4. Substances and test groups include: a) Fluoride, Nitrate, Nitrate + Nitrite, Total Extractable Metals and Metal Hydrides, Phenolic Compounds, Surfactants b) Substances that may be present due to industrial or commercial discharges into the sewer system 5. Intermittent discharges • two samples required during each discharge event (beginning and end of discharge) • Would not require more than what is required for a continuous discharge facility of same size
- 13. MWWE Strategy – EDOs Initial characterization monitoring requirements • WWTP Effluent • 24 hour flow proportional composite samples • Collect during full commercial/industrial activity • Normal operations • Don’t monitor when flows affected by thaw or storm events • Industrial discharge monitoring?
- 14. MWWE Strategy – Monitoring Compliance (Ongoing) Monitoring Requirements Facility TSS and Acute Chronic TRC1 EDOs Size CBOD5 Toxicity Toxicity Very Site Daily Monthly2 n/a n/a Small Specific Site Small Daily Monthly2 n/a n/a Specific Every two Site Medium Daily Quarterly Quarterly weeks Specific Twice per Site Large Weekly Quarterly Quarterly day Specific Three 5 Very Site times per days/wee Monthly Monthly Large Specific day k
- 15. MWWE Strategy – Monitoring Compliance Monitoring Requirements 1. TRC only needs to be monitored at WWTPs that use chlorine. The dechlorination agent may be monitored instead of TRC 2. TSS and CBOD monitoring may be reduced to quarterly for lagoons and any facility that discharges less than 100 m3/d (average) 3. Very small and small WWTPs that have industries discharging into their sewer systems must monitor based on a medium size facility 4. For intermittent discharges, TSS, CBOD5 and TRC must be monitored once during the discharge event or every two weeks if the discharges exceeds one month
- 16. MWWE Strategy – Summary • Endorsed in Feb 09 • NPS • 25/25/0.02 CBOD/TSS/TRC • Non-toxic effluent • No increase in CSOs and SSOs • EDOs • Initial Characterization • Industry inventory • Receiving Environment Monitoring • Risk Analysis • Ongoing Compliance Monitoring • Model Sewer-use Bylaw
- 17. City of Saint John, NB • Oldest incorporated city in Canada • Population = 70,000 • Saint John Water - water and sewage services for the City Saint John, NB
- 18. Saint John Water Current Infrastructure • 7 WWTPs • 1 lagoon system • Meets NPS • 1 RBC system • Does not meet NPS for TSS and TRC • 2 trickling filter systems • Do not meet CBOD and TSS NPS • 3 activated sludge systems Saint John Water – Millidgeville WWTF • 2 meet NPS • 1 does not meet NPS for TRC • 510 km of sanitary and storm sewers • Extensive network of combined sewers and CSOs
- 19. Saint John Water Projects to meet MWWES • Replacing 2 activated sludge plants with one new plant with UV disinfection • Includes the WWTP that does not currently meet TRC NPS • Upgrading or replacing RBC & trickling filter facilities to meet the NPS • Identifying and mapping all combined sewers and CSOs
- 20. Saint John Water Projects to meet MWWES • Initial WWTP effluent characterization complete • Receiving environment monitoring to determine EDOs • Sewer-Use Bylaw and enforcement program • All of which: • Produce more data • Increases reporting requirements • Increases data analysis
- 21. Previous Data Management Data Generation & Storage Spreadsheets SCADA Paper files Paper Logs Inline Instruments Spreadsheets Internal Laboratory Paper fax Spreadsheets PDF Paper files External Laboratories Spreadsheets Paper Log Paper files Field Meters
- 22. Data Challenges Disparate databases in multiple locations • In various paper files • On multiple spreadsheets • In personal computers Data not readily shareable • A range of city employees need access to both water quality and production data • Paper files and Excel spreadsheets are hard to share across an organization
- 23. Data Challenges Problems with data security and quality • Data in different physical locations not always backed up • Data on PCs, not always secured or backed up • Duplicate data entry increased transcription errors Lots of time spent on data entry and report creation • Results from the contract lab were being faxed in, then manually transferred to spreadsheets • Weeks to consolidate, validate, and reformat data for various reports
- 24. “The Water Board Office” “…there must be an easier way to get this information”
- 25. Process: analysis Needs Assessment • Analysis of current processes and tools: • functions performed • requirements met • interactions between tools • Summary of 19 requirements in five categories: • business • functional • user • reporting • security
- 26. Process: alternatives Alternatives considered by Saint John Water • Paper • Excel • Client server applications • Custom solutions • Software as a Service
- 28. Data Management Solution • Web-based Software-as-a-Service • Consolidated database • Direct data entry from internal and commercial labs • Automated data review and verification • Automated alert notification via e-mail • Quick and easy report generation • Multiple, simultaneous, controlled access • Accessible anytime, anywhere to authorized staff • Multiple backups • Disaster recovery plan
- 29. Benefits to Saint John Water • Consolidated database provides easy & simultaneous access to all water and wastewater system data by multiple users • Significant savings in time, effort & cost on: • Data entry • Checking compliance • Packaging and sending data around to others who need it • Generating reports • Maintenance of the application and servers • Reduced risk of corrupted data and non-compliance • Knowledge transfer • Ready to manage increase in data due to MWWES
- 30. Demonstration WaterTrax Wastewater Data Management Solution Demonstration October 15th 10:30 – 11:30 Pacific 1:30 – 2:30 Eastern (look for a registration link in today’s follow-up email)
- 31. Contact Andrew Lewis, P.Eng. Director Product Strategy (604) 630-3708 andrew.lewis@watertrax.com