MOUNTVIEW WASTEWATER TREATMENT PLANT AND HUNTSVILLE SEWAGE WORKS UPGRADES

Transcription

1 Schedule C Municipal Class Environmental Assessment ` MOUNTVIEW WASTEWATER TREATMENT PLANT AND HUNTSVILLE SEWAGE WORKS UPGRADES PUBLIC INFORMATION CENTRE #1 February 24, 2014

2 Welcome Please sign in, review the display materials and fill out a comment sheet. District staff and study consultants are available to discuss the study, answer questions, and receive your comments. Your input is appreciated.

3 District of Muskoka Fast Facts People Permanent residents: 59,220 Estimated seasonal population: 81,223 Estimated total population: 140,443 Growth rate 0.9% ( ) Land Surface Area: Approx. 4,761 km 2 (584,000 football fields) Approximately 18% of Muskoka s area is water, 12% is wetland Three major rivers run through the District Economy Top employment sectors: accommodation and food services, retail and wholesale, and manufacturing Over 50% of economy is related to tourism and service to seasonal residents

4 Muskoka s World-Class Recognition and Your Vision How the World Sees Muskoka How the Community Sees Muskoka Recognized as National Geographic s top 20 Best of the World Must-See Places and top vacation destination for two consecutive years (2011/2012) Key messages from received from 2,700 people in your community as part of the visioning initiative

5 Monitoring Watershed Health and Water Quality Watershed Report Card Lake System Health Program This is a comprehensive program to protect our water resources. It includes working with Area Municipalities and lake communities to: Classify lakes and phosphorus thresholds Conduct recreational water quality testing Support a biological monitoring program Implement a shoreline survey program The Muskoka Watershed Council is a volunteer organization founded by the District Municipality of Muskoka and the Muskoka Heritage Foundation. The Muskoka Watershed Report Card is produced by the Muskoka Watershed Council every four years to evaluate of the health of the water, land, and wetlands in Muskoka and the municipalities that share Muskoka s watersheds. Lake data areavailable available at muskokawaterweb.ca The Fairy Lake Association s mandate is to preserve and protect Fairy Lake and the surrounding areas. Volunteers conduct water quality monitoring and implement the Fairy Lake Plan to ensure the lake s protection and preservation for future generations.

6 Watershed Stewardship The District of Muskoka has implemented water conservation and stewardship programs. Publications include a series of brochures, prepared with the Muskoka Watershed Council, that provide information on how residents can maintain and improve the watersheds and water quality in Muskoka.

7 Inflow and Infiltration Program Sanitary Sewage Flow Components The District of Muskoka initiated an I/I reduction program to identify and remove sources of extraneous flow from the sanitary collection system. This includes the following: A six-month flow monitoring program Smoke testing of sanitary sewers Door-to-door inspections to identify sump pump and roof leader connections to the sanitary sewer Dye testing Zoom camera inspection of sanitary system The findings: Huntsville s sanitary sewers, sewage pump stations and wastewater treatment plants are significantly impacted by I/I during storm events Corrective actions being taken: Disconnect sources of inflow from the sanitary sewers (roof leaders etc.) Install rain guards in manholes in low lying areas Reduce sump pump flows to sanitary sewers Sanitary pipe repairs that may include; localized grouting, in-situ sewer relining, maintenance hole repairs, and/or reconstruction of sanitary sewers What is Inflow and Infiltration (I/I)? I/I is extraneous flow entering the sewer system through roof leaders connected to the sanitary system, sump pumps, cracked pipes, pipe joints, maintenance holes, and other openings or connections. What is the impact of I/I on our WWTP s? I/I increases flows to the WWTP, particularly during wet weather events, diluting sewage strength and occupying WWTP capacity. This directly increases the cost to build and operate a WWTP.

8 What the Town of Huntsville Means to You Nestled in a Natural Landscape A mix of built-up urban areas and large rural areas of forest, pristine lakes, and wetlands Year-Round Community A community of approximately 19,000 permanent residents with 6,000 seasonal residents Dynamic Offers activities for every season: world-class golfing, crosscountry skiing and snowmobiling, camping and canoeing Cultural-capital of Muskoka Home to Muskoka Heritage Place and a place to showcase visual arts, theatre and film Images courtesy of Muskoka Tourism

9 District of Muskoka Mission The District s Mission is : To manage the legacy of a healthy Muskoka by sustaining a functioning natural environment, recognizing the need for a vibrant economy together with a caring community conscience supporting those in need. The District sees sustainable wastewater treatment as a major element of achieving this mission and strives to: Maintain and continuously improve sewage treatment plant operations to address nutrients and contaminants of emerging concern such as pharmaceuticals and personal care products thereby minimizing the impact upon surface water quality. Identify and incorporate suitable technologies into sewage treatment plants for controlling nutrients and contaminants of emerging concern, as opportunities arise. Maintain Muskoka s reputation for high quality surface water and recreational opportunities, and continue to support the Muskoka Water Strategy and the Lake System Health Program.

10 Background The 1989 Environmental Assessment (EA) established a two phase approach for sewage works to satisfy the needs of the Town of Huntsville Phase 1 is complete - the construction of Golden Pheasant WWTP and continued use of the Huntsville WWTP (Mountview) Phase 2 has been deferred the replacement of the Huntsville WWTP (Mountview) and move treatment to Golden Pheasant This project will update the basis of the 1989 work to carry out the Phase 2 work.

11 Problem / Opportunity Statement The District Municipality of Muskoka is initiating a new Schedule C Municipal Class Environmental Assessment to update the preferred approach established in the previous 1989 EA to provide sewage works servicing for the Town of Huntsville. The Problem/Opportunity Statement is to: identify an updated Preferred Solution for replacing the Mountview WWTP and improving sewage works in the Town of Huntsville for the future. This Class EA study will: Verify information and preferred solution (Phase 2) from the 1989 EA Strive to plan sufficient capacity to support growth in the Town of Huntsville for the next 20 years Address effluent discharge from the existing wastewater treatment plants to the receiving waters

12 EA Study Objectives Support the long term economy of the community and provide for protection of the natural environment Reliably meet regulatory standards now and into the future Protect recreational water uses and surface water supplies Develop a solution that addresses adjacent land use compatibility

13 Problems to be Addressed or Considered Replacement of aging infrastructure at the Mountview WWTP Provide effluent quality that protects the long term health of Muskoka s lakes and rivers Implement a wastewater strategy to serve the needs of the community Provide effective integration with adjacent land uses, and to support a vibrant urban community in a natural setting Address current and future forecasted rural needs for septage treatment

14 Project Drivers Protecting Water Uses Maintaining Quality of Life Health Improving Aesthetics New Policies and Regulations Infrastructure Needs/ Improvements Economy Community Growth Knowledge, Science and Technology Climate Change Land Use Change Watershed Health

15 Municipal Class EA Process: Schedule C Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 Identify the Problem Consult with Public, Agencies, Stakeholders Review of background studies, EAs and existing conditions Develop and Evaluate Alternative Solutions Consult with Public, Agencies, Stakeholders Identify Design Concepts Consult with Public, Agencies, Stakeholders Select the Preferred Design Concept PIC #2 April 15 Complete Environmental Study Report PIC #3 May 31 File Environmental Study Report for Review by Public, Agencies, Stakeholders 30 Day Review Design, Construct and Monitor PIC #1 February 24 Select a Preferred Solution

16 Evaluation Methodology Phase 1 PIC #1 Develop Opportunity Statement Review Existing Information and Conditions We are Identify Alternative Solutions here Phase 2 Select Preferred Solution Develop Long List of Design Concepts PIC #2 PIC #3 Phase 3 Short List Design Concepts Develop Evaluation Criteria Develop Evaluation Criteria Evaluate Design Concepts Select the Preferred Environmental Study Report

17 Study Schedule Phase 1: Opportunity Statement 2014 Task Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Phase 2: Alternative Solutions PIC #1 Phase 3: Alternative Design Concepts Phase 4: Environmental Study Report PIC #2 PIC #3 30 day review period District of Muskoka Strategic Capital Plan for Wastewater Treatment in Huntsville: Environmental Assessment complete in 2014 Design 2015 Construction 2016 onwards System improvements are being deferred after the completion of the EA

18 Town of Huntsville Sewage Works Improvements Class EA (1989) Preferred Alternative Phase 1 - Complete Phase 2 Mountview WWTP Replacement Mountview WWTP remains in operation New Outfall from the Golden Pheasant WWTP Golden Pheasant WWTP constructed. Provisions made for future expansion during Phase 2 Selected forcemain upgrades carried out in anticipation of Phase 2 Mountview WWTP converted to a sewage pump station New forcemain from the Mountview Sewage Pump Station to the Golden Pheasant WWTP (route to be determined) Golden Pheasant WWTP expanded to service all areas

19 Mountview as a Wastewater Treatment Plant vs a Sewage Pump Station Princess Street Sewage Pump Station Mountview WWTP A fraction of the space is required for a sewage pump station in comparison to a WWTP. This is illustrated in the above photograph capturing both the Mountview WWTP and the Princess Street Sewage Pump Station

20 Wastewater Treatment in Huntsville Today The Mountview and Golden Pheasant WWTPs serve the Town of Huntsville They discharge to Fairy Lake by way of the Muskoka River and Fairy Lake respectively 2014 Google Both plants consistently meet Ministry of Environment requirements

21 Historical Wastewater Flows vs Plant Capacity Golden Pheasant WWTP Capacity Flow Rate (m 3 /day) Mountview WWTP Capacity Mountview WWTP Average Annual Flows Flow Rate (m 3 /day) Golden Pheasant WWTP Average Annual Flows Year Year

22 What s Changed Since 1989? Population and Urban Boundaries 1989 ESR Town of Huntsville Population 22, ,000 Average Growth rate 1.2% (excluding 1986 and 1991) 18,000 16,000 14, Official Plan Schedule D-2 Town of Huntsville le Official ial Plan, EA Population Projections 12,000 Town of Huntsville Census Data ( ) 10,

23 Town of Huntsville Permanent Housing Growth Rate of recent permanent housing growth has modestly declined for the Town of Huntsville. Over past 10 years, Huntsville has not seen an increase in the proportion of urban development compared to rural.

24 Existing Wastewater Servicing and Study Area

25 Huntsville Wastewater Servicing Schematic Susan Street Centre Street Princess Street SPS King Street Ferguson Road Hunters Bay Drive Hodges Lane SPS Mountview WWTP Coveside Drive SPS Church Street SPS Golden Pheasant WWTP Crescent Bay SPS Lake Drive Cliff Avenue Grandview Main SPS WWTP Highland Drive SPS Highland Hills Ski Club Hidden Valley Turner Drive Greens Birchcliffe Lakeview Bayshore Wastewater Treatment Plant Park Drive SPS Sewage Pump Station

26 Mountview Wastewater Treatment Plant Outfall Constructed in 1977 Constructed in Biosolids WWTP Influent Treatment WWTP Traffic (Mountview Ave) Screening The WWTP Rated Capacity is 3640 m 3 /day Average Raw Sewage Flow in 2012 = 2600 m 3 /day Average Raw Sewage Flow in 2013 = 3300 m 3 /day (first half of the year) The Mountview WWTP (formerly the Huntsville WWTP) was constructed in two phases between between 1956 and The average infrastructure age is 50 years. Upgrades Required to Continue Operation Replace outdated, aging and obsolete components Address structural settling of tanks and infrastructure Update to meet new codes and performance requirements Incorporate energy efficient equipment and technology Challenges in Expanding this WWTP: Limited footprint for expansion Adjacent land uses require enhanced approaches to odour control, noise and truck traffic Located on a floodplain

27 Mountview WWTP & Surrounding Community Church St. PS Fairvern Nursing Home Princess St. PS Mountview WWTP Huntsville High School Summit Centre

28 Golden Pheasant Wastewater Treatment Plant The Golden Pheasant WWTP was constructed in The WWTP was designed to accommodate future capacity increases and changes in effluent quality requirements. Biosolids WWTP Influent Sreening Treatment WWTP Traffic The WWTP Rated Capacity is 4300 m 3 /day, with Phase 2 Installed Capacity will be 8800 m 3 /day Average Raw Sewage Flow in 2012 =2300 m 3 /day Average Raw Sewage Flow in 2013 = 2900 m 3 /day (first half of the year) Upgrades Required to Continue Operation Replace outdated components Upgrade for enhanced performance requirements Incorporate energy efficient equipment and technology Challenges in Expanding this: Requires collections system modifications to reroute flows from the Mountview WWTP to the Golden Pheasant WWTP WWTP Effluent is used seasonally for the irrigation of a local golf course. At other times it is discharged to Fairy Lake.

29 Golden Pheasant WWTP and Surrounding Community Grandview Golf Resort Huntsville Deerhurst Resort Golden Pheasant WWTP Grandview Inn Golf Course

30 Effluent Quality How do we establish effluent quality? Determine the health of the lakes and rivers to be affected through analysis of nutrient data, flows, and lake currents Establish WWTP performance objectives based on recent research that: Meet or exceed regulatory requirements Consider all uses of the water body including; recreation, drinking water supplies, and aquatic life Protect human health and the natural environment Provide the long term protection of Muskoka s economy which is highly dependent on pristine lakes and rivers

31 Developing Standards for Effluent Quality The District s Objectives Develop performance objectives that align with the District s Mission and Strategic Priorities for effluent chlorine and ammonia as well as the efficient use of energy and chemicals Our Process Determine Background Water Quality Conditions Conduct Outfall Analysis Consider all Current and Future Regulations Consider Best Practices for Recreational Water Uses Consult Recent Research for the Treatment of Emerging Contaminants Develop Proposed Treatment Standard

32 What Do We Treat For? Phosphorus Promotes nuisance algae blooms Nitrogen Ammonia is toxic to aquatic life Nitrate is harmful to humans in high concentrations Contaminants of Emerging Concern As technology advances, endocrine disrupting chemicals (EDCs) as well as other compounds which can have physiological affects on human beings and aquatic organisms are being detected in our surface water. How do EDCs get into our Surface Water? From pharmaceuticals, personal care products, and naturally occurring hormones from fungus and plants Bacteria For protecting drinking water and recreational uses Are EDC s Regulated in Ontario? These compounds are not currently regulated by the Ministry of Environment Contaminants of Emerging Concern Compounds of low concentration that impact aquatic and human health What is Muskoka s Approach to addressing EDCs at its WWTPs? Incorporate suitable technologies into its WWTPs to control nutrients and contaminants of emerging concern

33 Current Technologies used by the District for Achieving High Effluent Quality Advanced Treatment Technologies Improved performance Smaller footprint Reduced chemical consumption Increased energy efficiency More effective odour control Advanced Filtration Higher levels of phosphorus removal are achievable often to detection limits Compact footprint is possible Ultraviolet Disinfection Removes bacteria with no by-products or chemical requirement

34 Meeting District Needs for Sewage Treatment in Other Communities Application of Better Treatment Technologies The use of advanced treatment for removing phosphorus, ammonia and disinfection Replacement of outdated and aging infrastructure Providing treatment that meets new regulatory standards and community expectations Examples: Upgraded Lagoon Lane WWTP in Bracebridge utilizes advanced technologies in response to needs and pressures which will also be applied at Port Carling s Medora Street WWTP. Covered Tanks Reduce Odours at Gravenhurst WWTP Tertiary Treatment at Lagoon Lane WWTP in Bracebridge Disinfection without Chlorine at Lagoon Lane WWTP in Bracebridge Treated Effluent Photo by Jennifer Bowman of Metroland Media Photo by Jennifer Bowman of Metroland Media

35 Alternative Solutions to be Considered in the Next Phase of the EA Process Do nothing (status quo) continue with existing operations and maintenance of existing WWTPs, pumping stations and forcemains Limit community growth limit growth in Huntsville with restrictions on development approvals to relieve environmental pressures, and delay the need for upgrading the existing sewage treatment to accommodate additional wastewater flows Water Efficiency continue with the District s water conservation program to reduce water used, and therefore reduce corresponding wastewater flows and required replacement capacity Inflow and Infiltration (I/I) Control I/I is extraneous flow entering the sewer system through cracked pipes, pipe joints, maintenance holes, and other openings or connections. The District s I/I control program would continue to reduce extraneous flows to the wastewater system Upgrade WWTP infrastructure capacity requirements of the community consider servicing options and treatment technologies to meet future capacity requirements and performance requirements at the Mountview WWTP site, Golden Pheasant WWTP site or a new site(s)

36 Factors Considered in Evaluating Alternatives Natural Impacts on sensitive terrestrial habitats/ species (flora and fauna) Impacts on sensitive aquatic habitats/species Impacts on surface and groundwater systems (source water) Technical Constructability Performance and available capacity considerations Proven technology Safety Social / Cultural / Legal Local acceptability Recreational water uses Compliance with applicable federal, provincial and local plans & policies Impacts on surrounding land users (odours, noise, traffic) Property acquisition requirements Financial Capital costs Property acquisition costs Operation & Maintenance costs Lifecycle costs

37 Project Contact Information All comments received will be considered and incorporated into the Class EA documentation. Any additional questions or comments? Feel free to contact members of the project team at any time throughout the study or fill out a comment sheet. Ms. Zuliana Mawani, P.Eng. CH2M HILL Canada Ltd. 245 Consumers Road, Suite 400 Toronto, ON M2J 1R3 Telephone: (705) x Alternate Tel: (416) Fax: (416) MountviewEA@ch2m.com Thank you for attending. Your input is valuable. The District Municipality of Muskoka, Engineering and Public Works Department, 70 Pine Street, Bracebridge Ontario, P1L 1N3, (T) (705) (F) (705) (E) publicworks@muskoka.on.ca