INNISFIL WATER AND WASTEWATER MASTER SERVICING PLAN UPDATE

Transcription

1 INNISFIL WATER AND WASTEWATER MASTER SERVICING PLAN UPDATE Water and Wastewater Servicing Alternatives Public Information Meeting No. 2 March 20, 2018

2 1 MSP Update Objectives Develop water and wastewater servicing plans for: population & employment growth and intensification within settlement areas growth areas identified in the Innisfil Growth Management Strategy (OPA1) to the year 2031 and beyond Develop opportunities for servicing existing lots within settlement areas Maximize number of benefitting users per project Maximize use of existing infrastructure Coordinate with Transportation Master Plan Update and Official Plan

3 2 Master Plan Class EA Master Plan Class EA (Phases 1 and 2) Phase 1(completed): Serviced population projections Development of design criteria Water and wastewater servicing needs Preliminary list of alternative solutions Now in Phase 2: Develop and evaluate servicing alternatives Recommend servicing solutions Prepare Master Plan Update Report

4 3 Areas of Potential Future Growth 4

5 4 Water Servicing Plans Prepared updated water servicing plans for: Alcona and growth areas Innisfil Heights Economic District Expansion Lefroy and Innisfil South to Gilford Innisfil North (Sandy Cove and Big Bay Point) Stroud Cookstown Churchill: Needs met by construction of new reservoir and BPS

6 5 Alcona Water Servicing Identified Needs and Issues Need booster pumping capacity for growth in pressure zones 2 and 3 Improve available fire flows and operating pressures Expand Innisfil Beach Road trunk watermain from WTP to Alcona reservoir Improve Town Campus water supply system Alternatives Considered for Servicing Alcona Growth Alternative 1: Supply North growth area from Alcona Zone 2 BPS, and new Zone 3 BPS Supply South growth area from a new BPS at Alcona Reservoir Alternative 2: Supply North growth area from new 9 th Line trunk watermain, and new Zone 2 BPS and Zone 3 BPS Supply South growth area from an expanded Lefroy reservoir and BPS Preliminary Recommendation: Alternative 1 Maximizes use of existing Zone 2 BPS Fewer new BPS to construct Capital costs for the new Alcona reservoir BPS can be shared between more users: BPS would also serve Town Campus and Innisfil Heights High capital cost for expansion of Lefroy reservoir and BPS Alcona s North growth area in PZ2 does not require proposed 9 th Line trunk watermain to proceed Estimated Project Costs for Proposed Water Infrastructure in Alcona With Alternative 1: $25.6 M With Alternative 2: $27.5 M Some shared costs Excludes WTP expansion costs

7 6 Alcona Growth Water Servicing Alternative 1

8 7 Alcona Growth Water Servicing Alternative 2

9 8 Innisfil Heights Water Servicing Identified Needs and Issues Increase water supply for expansion of Economic District Alternatives Considered for Servicing Innisfil Heights Economic District Expansion Alt. 1: Increase capacity of existing groundwater system Alt. 2: Supply water from City of Barrie water system Alt. 3: Supply water from Innisfil s Lakeshore water system Considerations Alt. 1, Groundwater Supply: Not viable because aquifer cannot support ultimate projected water flows Alt. 2, Supply from Barrie: Under review by Barrie; considerations of compatibility with Barrie s growth management plan and servicing needs. Recommendation: Alternative 3 Lakeshore WTP expansion designed to supply Innisfil Heights Economic District Trunk watermain on Innisfil Beach Road can also supply the Town Campus and Stroud Water transmission main on Innisfil Beach Road can be constructed concurrently with County road reconstruction project ( ) Estimated Project Costs for Water Infrastructure needed to Service Innisfil Heights Economic District from Lakeshore Water System By 2031: $26.1 M Future: $9.8 M Some shared costs Excludes WTP expansion costs

10 9 Innisfil Heights Water Servicing

11 10 Lefroy and Innisfil South Water Servicing Identified Needs and Issues Existing properties on individual well supplies Municipal water service needed for new developments Increase Lefroy BPS & reservoir capacity for new developments in PZ2 Need to improve fire protection in Gilford and Fennell s Corners Preliminary Recommendation (Gilford): Alternative 1 Extension of water distribution system will provide opportunity for connection of existing properties between Lefroy and Gilford Lakeshore water system has sufficient water storage to meet Gilford s fire protection needs In the interim, the WTM can supply fire flow Alternatives Considered for Improving Fire Protection in Gilford Alt. 1: Extend Lakeshore water distribution system from Lefroy to Gilford Alt. 2: Add a water storage tank in Gilford, supplied from WTM Alt. 3: Do nothing: Rely on WTM to supply domestic and fire flows Estimated Project Costs for Proposed Water Infrastructure in Lefroy and Extension to Gilford By 2031: $6.9 M Future: $4.6 M

12 11 Lefroy and Innisfil South Water Servicing 12

13 12 Innisfil North Water Servicing Identified Needs and Issues Existing properties on individual well supplies Municipal water service needed for new developments Estimated Project Costs for Proposed Water Infrastructure in Innisfil North By 2031: $1.6 M Future: $3.2 M No alternatives needed to be considered Trunk watermain on 25 th SR has been designed and built to meet water demands of existing properties and future developments within Sandy Cove settlement area Watermains in Sandy Cove are proposed to serve proposed developments Watermains and reservoir in Friday Harbour have been designed and built to meet water demands of existing properties in Big Bay Point

14 13 Innisfil North Water Servicing 14

15 14 Stroud Water Servicing Identified Needs and Issues Reduced capacity and deterioration of bacteriological quality of two of three groundwater wells Alternatives Considered for Improving Water Supply Alt. 1: Refurbish existing wells Alt. 2: Connect to the Barrie water system Alt. 3: Connect to the Lakeshore water system Preliminary Recommendation: Alternative 3 Reliable water supply from Lakeshore water system (proposed watermain on Innisfil Beach Road) Improved water quality Eliminates O&M requirements of water treatment system Estimated Project Costs for Proposed Water Infrastructure to Connect Stroud to Lakeshore water system By 2031: $2.7 M Considerations Alt. 1, Refurbish existing wells: Preliminary conclusions are that wells cannot be repaired and may need to be rebuilt. Alt. 2, Supply from Barrie: Under review by Barrie; considerations of compatibility with Barrie s growth management plan and servicing needs.

16 15 Stroud Water Servicing

17 16 Cookstown Water Servicing Identified Needs and Issues Replace west standpipe Provide mixing systems in both standpipes Replace small diameter and old watermains Improve operating pressures Alternatives Considered to Improve Pressures Alt. 1: New booster pumping station and install PRVs in low areas Alt. 2: Install individual booster pumps in high areas Preliminary Recommendation: Alternative 2 Excessive number of PRVs would be required to maintain adequate pressures in low areas if a booster pumping station was added High elevation area with low water pressures is small. Lower cost to install individual booster pumps than installing PRVs throughout water distribution system Estimated Project Costs for New Standpipe and Small Watermain Replacements in Cookstown By 2031: $2.0 M Watermain condition assessment required

18 17 Lakeshore WTP Expansion Existing WTP capacity (Phase 2): 25.8 ML/day In 2017, the maximum day water demand was: 15 ML/day, incl. 7.2 ML/day to BWG Phase 3A upgrade and expansion underway, to be completed by summer 2018 Conversion to membrane filtration system Increase capacity to 30 ML/day (winter) and 38 ML/day (summer) Phases 3B and 3C expansions and new water intake are planned to be built as water demands from Innisfil and BWG increase Phase 3B: 44 ML/day (winter) to 55 ML/day (summer) Phase 3C: 68 ML/day (winter) to 85 ML/day (summer)

19 18 Wastewater Servicing Plans Prepared wastewater servicing plans for: Innisfil Heights Alcona and Innisfil North (Sandy Cove and Big Bay Point) Lefroy and Innisfil South (Degrassi Point and Gilford) Stroud and Churchill Cookstown: Separate Class EA study for wastewater treatment and disposal capacity for planned growth

20 19 Innisfil Heights Wastewater Servicing Identified Needs and Issues Need wastewater system to facilitate expansion of the Economic District Alternatives considered for expansion of Economic District Alt. 1: Sanitary sewers to communal(s) subsurface disposal systems Alt. 2: Sanitary sewers connected to Barrie wastewater system Alt. 3: Service by private individual septic systems Alt. 4: Sanitary sewers connected to Lakeshore system via 6 th Line Alt. 5: Sanitary sewers connected to Lakeshore system via Innisfil Beach Road Considerations Alt. 1 is not a feasible approach due to area required for disposal systems and Reasonable Use constraints Alt. 2 is under review by Barrie; considerations of compatibility with Barrie s growth management plan and servicing needs Alt. 3 would not meet intent to offer a fully serviced industrial park Preliminary Recommendation: Alternative 5 Can proceed concurrently with County road reconstruction ( ) Facilitates servicing of Town Campus and associated growth Aligns with water servicing plan for Economic District expansion First phase of infrastructure meets closely servicing needs of first phase of Economic District expansion Lower first phase capital costs Estimated Project Costs for Proposed Wastewater Infrastructure to Service Innisfil Heights Economic District to Lakeshore System By 2031 Future Alt. 4 6 th Line Route $50.1 M $21.9 M Alt. 5 Innisfil Beach Rd. $43.5 M $41.6 M

21 20 Innisfil Heights Wastewater Servicing Alternative 4

22 21 Innisfil Heights Wastewater Servicing Alternative 5

23 22 Alcona and Innisfil North Wastewater Servicing Identified Needs and Issues Need additional capacity at SPS #3 and SPS #4 Increase capacity of trunk sewers to WWTP New sanitary sewers to service growth Existing properties on septic systems, some on lakefront Estimated Project Costs for Proposed Wastewater Infrastructure in Alcona and Innisfil North By 2031: $30.1 M Future: $5.3 M No alternatives needed to be considered Trunk sewers and SPS on 25 th Sideroad have been designed and built to convey wastewater flows from existing properties and future developments within Sandy Cove settlement area Sewers and SPS in Sandy Cove are proposed to serve proposed developments Sewers and SPS in Friday Harbour have been designed and built to convey wastewater flows of existing properties in Big Bay Point

24 23 Alcona and Innisfil North Wastewater Servicing 24

25 24 Lefroy and Innisfil South Wastewater Servicing Identified Needs and Issues Deteriorating condition of SPS #5 Lefroy-Belle Ewart partially on septic systems Wastewater servicing needed for new developments Gilford and properties on lakefront on septic systems Alternatives Routes Considered for Future Forcemains from Gilford to Lefroy Alt. 1: Forcemain on municipal roads on 2 nd Line and 20 th SR Alt. 2: Forcemain on Degrassi Point shoreline through easements Preliminary Recommendation: Alternative 2 Same route as future Lakeshore watermain extension to Gilford Less infrastructure and lower cost Need to mitigate impacts of construction on sensitive natural environment Estimated Project Costs for Proposed Wastewater Infrastructure in Lefroy and to Extend Sanitary Servicing to Innisfil South By 2031 Future With Alt. 1: $1.7 M $14.7 M With Alt. 2: $1.7 M $11.2 M

26 25 Lefroy and Innisfil South Wastewater Servicing 26

27 26 Stroud and Churchill Wastewater Servicing Identified Needs and Issues No identified issues with existing septic systems at this time Municipal sanitary servicing may be required in the future Preliminary Recommendation: Continue with individual septic systems Future Infrastructure to service Stroud (when needed) Sanitary sewer system Stroud SPS and forcemain and gravity sewer on 9 th Line Future Infrastructure to service Churchill (when needed) Sanitary sewer system Churchill SPS and forcemain on Killarney Beach Road to 20 th SR

28 27 Lakeshore WPCP Expansion Existing rated capacity: ML/day (average) and ML/day (peak flow) In 2017, the WPCP operated at 10.7 ML/day, 75% of its rated average day capacity Planned expansion of Lakeshore WPCP (Class EA completed in 2011) with treatment upgrades to continue to meet maximum phosphorus loads to Lake Simcoe Phase 1: Expansion to 25 ML/day (average) Add membrane filtration for phosphorus removal Phase 2: Expansion to 40 ML/day (average) Modify secondary treatment for biological nutrient removal

29 28 Next Steps in Class EA Review input and comments received Incorporate input into assessment of alternatives and recommended servicing plans Prepare draft MSP Update Report End of April 2018 Issue MSP Update Report and Notice of Completion 30-day public and agency review period Please fill in a Comment Sheet and submit it to us Today or by April 6, 2018

30 INNISFIL WATER AND WASTEWATER MASTER SERVICING PLAN UPDATE QUESTIONS?