Upper York Sewage Solutions Individual Environmental Assessment Project Update

Transcription

1 Upper York Sewage Solutions Individual Environmental Assessment Project Update Town of Georgina Committee of the Whole October 15, 2012 Daniel Kostopoulos Director, Capital Planning and Delivery

2 Presentation Summary Project Background Environmental Assessment Process Proposed Water Reclamation Centre Rationale for Site Selection Recommended Site Recommended Outfall and Conveyance Next Steps Slide 2

3 Project Timeline Final Lake Simcoe Protection Plan Final Phosphorus Reduction Strategy Lake Simcoe Water Reclamation Centre Site and YDSS Modification Route Recommended 2009 Jun 2009 Mar 2010 Jun 2010 Oct 2011 Oct York Region commences Upper York Sewage Solutions (UYSS) Individual Environmental Assessment with Terms of Reference Minister of the Environment approves Terms of Reference with addition of Innovative Wastewater Treatment Technologies Alternative Lake Simcoe Water Reclamation Centre identified as Preferred Alternative with Modifications to the YDSS Submission of Environmental Assessment Report for review and approval by Minister of the Environment Slide 3

4 A Sustainable Servicing Solution Wastewater from growth in East Gwillimbury and a portion of Newmarket will be conveyed to an innovative sewage treatment plant (Water Reclamation Centre) Water Reclamation Centre - Advanced technology - Phosphorus off-sets - Potential use of Reclaimed Water Wastewater from growth in Aurora and a portion of Newmarket will be conveyed to the existing York Durham Sewage System (YDSS) for discharge to Lake Ontario Modifications to existing YDSS include additional forcemain connecting Newmarket, Aurora and Bogart Creek Pumping Stations Newmarket 5 MLD 3 MLD Aurora 11 MLD East Gwillimbury 28 MLD Modifications to existing YDSS Slide 4

5 EA Process We Are Here Slide 5

6 Proposed Water Reclamation Centre Rationale for Site Selection Recommended Site, Outfall & Conveyance Infrastructure Slide 6

7 Why a Water Reclamation Centre? Uses sustainable proven technologies advanced wastewater purification systems and water reclamation technologies Reverse osmosis membranes provide high quality phosphorus reduced water to East Holland River Nutrient rich water for irrigation and industrial processes Provides unparalleled treatment levels in Ontario Provides a reliable water source that protects against changes in rainfall intensity and frequency (climate change) Conserves our water resources Provides an opportunity for education, technology, knowledge transfer and research within the Lake Simcoe watershed Working together with the LSRCA, MOE & MNR to meet provincial growth plans while providing opportunities to benefit the Lake Simcoe watershed Slide 7

8 Lake Simcoe Watershed Benefits Improved aquatic habitat conditions from increased baseflow Improved water quality in the East Holland River from the Water Reclamation Centre outfall Slide 8

9 Advanced Treatment Demonstration Facility Uses secondary effluent from Mount Albert WPCP to demonstrate performance of: Tertiary treatment: Low pressure membranes (microfiltration) Quaternary treatment: High pressure membranes (reverse osmosis) Consistent results following reverse osmosis show phosphorus reduced by 97% - below goal of 0.01 mg/l Providing design optimization for Water Reclamation Centre Reverse Osmosis Unit Open for tours Visit for full details and schedule Slide 9

10 Potential Water Reclamation Centre Sites December 2011 Preliminary long list of 98 potential alternative sites was identified based on mandatory site generation criteria: Within the Towns of East Gwillimbury and/or Newmarket Greater than 30 ha Between 218 m and 253 m in elevation Less than 5 km away from a permanent waterbody Legend Preliminary Long List of Potential Alternative Water Reclamation Centre Sites Existing Approved Holland Landing WPCP Slide 10

11 Long List of Potential Water Reclamation Centre Sites December 2011 Long list of 21 sites identified through Site Generation Process using the following criteria: 120 m buffer from sensitive environmental features 120 m buffer from the Greenbelt Natural Heritage System Avoidance of Conservation Authority Regulated Floodplain Areas, the 5-25 Year Wellhead Protection Areas, and Oak Ridges Moraine 150 m buffer from sensitive land uses Minimum of 15 ha of useable area for the proposed Water Reclamation Centre Two sites added through Willing Property Owner Host Process WH1 and WH2 (resulting in 22 sites) Legend Area Suitable for Water Reclamation Centre Area Unsuitable for Water Reclamation Centre Existing Approved Holland Landing WPCP Note: Site 42 included within WH2 Slide 11

12 Short List of Potential Water Reclamation Centre Sites April 2012 Advantages of Sites 24, 30, WH1 and WH2: Greater distance from locally significant wetlands Greater distance from permanent watercourse/water body feature Avoidance of existing agricultural operations and/or structures Suitability for construction and operation of a Water Reclamation Centre Access to regional roads Compatibility with future land uses Proposed Outfall Legend Area Suitable for Water Reclamation Centre Area Unsuitable for Water Reclamation Centre Proposed Route to Outfall Proposed Route from Queensville West Pumping Station Existing Approved Holland Landing WPCP UYSS Service Boundary Slide 12

13 Legend WH1 West Recommended Site Area Suitable for Water Reclamation Centre Area Unsuitable for Water Reclamation Centre Proposed Route to Outfall Proposed Route from Queensville West Pumping Station UYSS Service Area Queensville Proposed Outfall Approved Queensville West Pumping Station Hydro Corridor Holland Landing Slide 13

14 WH1 West Recommended Site (2nd Concession 1 km north of Queensville Sideroad) Combination of natural features (existing ridge line and trees) and planned landscaping features will eliminate and/or minimize views of proposed Water Reclamation Centre will not be visible from existing adjacent communities No displacement of cultural heritage (i.e., heritage houses and farms) Lower capital, operational and maintenance costs Minimal effects to terrestrial habitat and wildlife and no loss of aquatic habitat Shorter conveyance infrastructure requires less energy (measured by Carbon Dioxide (CO 2 ) Footprint) Slide 14

15 WH1 West Recommended Site Layout Slide 15

16 Water Reclamation Centre Recommended Outfall Slide 16

17 Modifications to Existing York Durham Sewage System (YDSS) Rationale for modifications: Upgrades to infrastructure required to ensure wastewater servicing remains reliable and secure to accommodate approved growth Allow for operational flexibility with integration of existing YDSS with proposed Water Reclamation Centre Provide backup to existing Newmarket and Bogart Creek Pumping Stations forcemains during periods of high flow (e.g. storm events) and during temporary shut down periods for routine maintenance Required modifications: Modifications to existing Green Lane Trunk Sewer to direct flows from northwest Newmarket to existing YDSS or Water Reclamation Centre Additional wastewater conveyance forcemain between Newmarket & Aurora Pumping Stations and between Bogart Creek & Aurora Pumping Stations Existing Trunk Sewer Additional Forcemain or Gravity Sewer Connection with QHLS Wastewater Servicing Newmarket Pumping Station Existing Forcemain Bogart Creek Pumping Station Aurora Pumping Station 17 Slide 17

18 Recommended Route for YDSS Modifications Legend Recommended Route Existing Gravity Sewer Pumping Station Staging Area Access Route Lower number of temporarily affected residences, businesses and roadways Lower capital, operational & maintenance cost Disruption to park areas is minimized through use of trenchless technology Lowest pumping energy and shortest forcemain length (measured by Carbon Dioxide (CO 2 ) Footprint) Slide 18

19 Next Steps Feedback on the recommended Water Reclamation Centre Site and YDSS Modifications will be used in determining the preferred Site and Route Public meeting in Georgina scheduled for October 23 rd Initiate preliminary design: Water Reclamation Centre Site, Conveyance Infrastructure and Outfall YDSS Modifications Conveyance Infrastructure Initiate impact assessment stage of the UYSS EA on the preferred Water Reclamation Centre and YDSS Modifications Conveyance Infrastructure Final round of consultation events planned for early 2013 Slide 19