TOWNSHIP OF SPRINGWATER MIDHURST - WATER, WASTEWATER & TRANSPORTATION CLASS ENVIRONMENTAL ASSESSMENT PHASE 3 & 4

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1 TOWNSHIP OF SPRINGWATER MIDHURST - WATER, WASTEWATER & TRANSPORTATION CLASS ENVIRONMENTAL ASSESSMENT PHASE 3 & 4 Aug 03, 2016 Status Update to Council 1

2 Overview of Midhurst Secondary Plan On November 28, 2012 the Ministry of Municipal Affairs and Housing partially withdrew its appeal of the Midhurst Secondary Plan; As a result of the Ministry s partial withdrawal, 300 ha of the total 756 ha proposed to be re-designated urban in Official Plan Amendment (OPA) 38 were cleared for development; The 300ha (Phase 1) equates to approx. 5,000 units; The remaining 456 hectares (Phase 2) and all related policies to OPA 38 remain under appeal at the OMB; Of the 300 ha, OPA 38 permits development of 3,850 units plus employment generating uses to proceed. Prior to the remaining 1,250 units within Phase 1 proceeding, certain holding provisions within the Township s Secondary Plan have to be fulfilled. 2

3 Midhurst Secondary Plan Schedule A Land Use 3

4 Phase & Stage Development Phasing and Staging Projections Table Existing Residential Units Carson Road Developments Employment Cumulative Total Units Doran Road Developments Residential Units Cumulative Total Units Cumulative Total Units Stage i (1A + 1B) ,080 Stage ii (1C + 1D) ,296 Phase 1 Stage iii (1E + 1F) ,174 Stage iv (1G to 1I) ,850 Stage v (1J, 1K, 2B, C &D) ,000 Phase 1 Totals ,000 Stage i ,009 Phase 2 Stage ii ,759 Stage iii ,484 Stage iv ,208 Phase 1 & 2 Totals ,208 Existing Existing Un-Serviced 113 8,321 Existing Serviced ,546 Overall Total (Development + Existing) ,546 4

5 Development Phasing and Staging Projections Map 5

6 Aquifer A3 is a regionally extensive aquifer and is a source of water for Municipally serviced areas of existing Midhurst and Snow Valley, among others. As such Aquifer A3 was a target for the recent well exploration program during Phase 3. The Hydrogeological investigation identified the following well sites: Carson Area Neighborhood Construction of 3 production wells at the Sand and Gravel site with any 2 being capable of providing a total of 73 L/s; Construction of two production wells at West Snow Valley Site each capable of producing 8 L/s; Doran Area Neighborhood Hydrogeological Investigation Construction of 3 production wells at the Alliance Well Site, with any 2 being capable of providing a total of 100 L/s; Construction of 3 production wells at the Old School Road Well Site with any 2 being capable of providing 40 L/s; 6

7 Preferred Water Treatment, Storage and Distribution Solution Develop new Municipal Wells within Midhurst area with two (2) water treatment plants, each with in-ground reservoirs and pumping facilities: Eight (8) Municipal production wells and three redundancy wells located as shown on following Slide; One Water Treatment Facility for disinfection and treatment to be located south of Craig Rd. in Doran Road North Development east of Gill Road; One Water Treatment Facility for disinfection and treatment to be located in development lands (former gravel pit), north of Snow Valley Road east of Wilson Drive; Two (2) In Ground Reservoirs (one in the east and one in the west) fed directly from the Water Treatment Facilities; Potential for connection to existing Midhurst system with pressure regulating valves (PRV s) to augment emergency capabilities in existing system; Provides a potential loop to existing system at Highway 26 and Nursery Rd. 7

8 Preferred Water Treatment, Storage and Distribution Solution (Cont.) 8

9 Water Supply Design Summary and Estimated Capital Costs Description Doran Road WTP Carson Road WTP Phase 1 Max Day Demand (MDD) Capacity (L/s) Phase 2 Max Day Demand (MDD) Capacity (L/s) Treatment Oxidation and filtration to remove iron and manganese Disinfection by chlorination Ion exchange to remove nitrate Oxidation and filtration to remove iron and manganese Aeration to degas methane Disinfection by chlorination Phase 1 Water Storage Volume (mᶟ) 3,500 3,684 Raw Water Supply Phase 1 Estimate $1,410,000 $870,000 WTP Cost Estimate Phase 1 $3,659,000 $3,535,000 Water Storage Cost Estimate - Phase 1 $2,474,000 $2,638,000 Other Costs (General requirements, Approvals, Permits, Engineering & Contingency) $4,098,000 $3,825,000 Total Phase 1 Estimate $11,600,000 $10,900,000 Phase 2 Water Storage Volume (mᶟ) 5,400 3,868 Raw Water Supply Phase 2 Estimate $3,100,000 $3,138,000 WTP Cost Estimate Phase 2 $380,000 $701,000 Water Storage Cost Estimate - Phase 2 $1,724,000 $0 Other Costs Other Costs (General requirements, Approvals, Permits, Engineering & Contingency) $2,835,000 $2,098,000 Total Phase 2 Estimate $8,000,000 $5,900,000 9

10 Liquid Treatment Train Overview of Wastewater Treatment Plant The proposed Wastewater Treatment Plant will include the following key process and components: Process Preliminary Treatment Primary Treatment Secondary Treatment Tertiary Treatment Disinfection Biosolids Management Effluent Pumping Brief Description and Treatment Focus Conveyance to treatment plant and removal of screenings and grit Removal of settleable solids by gravity Processes to oxidize organics, oxidize ammonia, remove nitrogen and phosphorus Further removal of total phosphorus and suspended solids to meet the effluent criteria Inactivation of pathogenic organisms Process to thicken, stabilize and dewater the liquid sludge for re use Transfer the final effluent to the discharge point 10

11 Proposed Wastewater Flows (Assuming 1 Facility) Phase & Stage Cumulative Total Units Wastewater Average Daily Flow m 3 /day Stage i (1A + 1B) 1,080 1,393 Stage ii (1C + 1D) 2,296 2,962 Phase 1 Stage iii (1E + 1F) 3,174 4,094 Stage iv (1G to 1I) 3,850 4,967 Stage v (1J, 1K, 2B, C &D) 5,000 6,450 Phase 1 Totals 5,000 6,450 Stage i 6,009 7,752 Phase 2 Stage ii 6,759 8,719 Stage iii 7,484 9,654 Stage iv 8,208 10,588 Phase 1 & 2 Totals 9,546 12,314 11

12 Summary - Willow Creek 7Q20 Flow Assessment & Assimilative Capacity Study The 7Q20 Flow Assessment identified that: A 7Q20 value of 430 L/s was calculated for Willow Creek, using the last 10 years of actual flow data, from a stream gauge on Willow Creek at Hwy 26; The Assimilative Capacity Study (ACS) identified that: Willow Creek is classified as a Policy 2 receiver for TP; Phase 1 effluent will have a TP concertation of approximately 0.05mg/L resulting in 118kg/yr of new phosphorus loading; Phase 1 & 2 effluent will have a TP concertation of approximately 0.03mg/L resulting in 134kg/yr of new phosphorus loading; The effluent after Phase 1 & 2, will reduce the TP concentrations within Willow Creek, under summer low flow conditions, from to mg/l or less (worse case scenario). 12

13 Overall Nutrient Assessment of Midhurst Secondary Plan on Minesing Wetland An Assessment of the cumulative impacts of nutrients (particularly phosphorus) from the MSP on Willow Creek was completed. The assessment identified: The cumulative phosphorus loading from the Midhurst Secondary Plan will be 66 kg/year to Willow Creek. The Minesing Wetland is a 6,000 hectare network of swamps, fens, bogs and marshes with an extremely large catchment area, including Willow Creek; Total annual phosphorus loading to the Minesing wetland various significantly from year to year, but it is estimated to be between 6,000 and 7,000 kg/year; Given the magnitude and the large annual fluctuations of phosphorus within Minesing Wetland, the analysis concluded that the additional phosphorus loading will not negatively affected the nutrient dynamic within the Minesing Wetlands; Analysis concluded that the ammonia concentrations will be below the Provincial Water Quality Objectives (PWQO) and not negatively affect the ammonia levels within the Minesing Wetlands; If needed, ways to achieve a no net increase in phosphorus loading to Willow Creek are identified. 13

14 Preferred Wastewater Collection and Treatment and Disposal Alternative New Wastewater Treatment facility in the former gravel pit, north of Snow Valley Road with a discharge to Willow Creek on Hwy 26. One Wastewater Treatment Plant (WWTP) to be located in the former gravel pit, North of Snow Valley Road (details of WWTP shown on following slides); Proposed Wastewater Treatment Plant to be modular, allowing for phased development and servicing of existing Midhurst area; Sewage Pump Stations as required with manifolded forcemain connections; Forcemain from Doran Road Area to WWTP via Gill Road, Doran Road, Finlay Mill Road and Snow Valley Road; Effluent discharge to Willow Creek (at crossing of Hwy 26) via pipe along Wilson Drive and Hwy 26; 14

15 Preliminary Preferred Liquid Treatment Solution Based on the evaluation the Preferred Liquid Treatment Solution is: Preliminary treatment including screening and degritting. Step Feed Biological Nitrogen Removal (BNR) (primary & secondary treatment), followed by Membrane filtration (tertiary treatment). Final treatment will include UV Disinfection, before pumping to discharge point. 15

16 Preliminary Preferred Biosolids Management Solution Based on the evaluation the Preferred Biosolids Management Solution is: Biological Stabilized liquid sludge to beneficial re use with mechanical thickening and Auto-thermal Thermophilic Aerobic Digestion (ATAD) 16

17 Overall Capital Cost Estimate for the WWTP Phase 1 Phase 2 Preliminary Treatment $2,656,000 $1,993,000 Secondary Treatment $12,585,000 $9,914,000 Tertiary Treatment $6,037,000 $3,848,000 Disinfection $1,025,000 $675,000 Effluent Pumping $462,000 $387,000 Biosolids Treatment $14,565,000 $12,605,000 Utilities, Site Preparation, Landscaping, Administration Building Capital Cost Estimate for the WWTP $3,275,000 $1,250,000 Contingency (10%) $4,060,500 $3,067,200 Engineering Fees, Permits etc. (17%) $6,902,850 $5,214,240 Total (excluding HST) $51,600,000 $39,000,000 17

18 Preferred Wastewater Collection and Treatment and Disposal Alternative 18

19 Highway 400 & Forbes Road Interchange 2031 Lane Configurations Signalization plus eastbound and westbound turning lanes onto Hwy 400 South at the west ramp terminal in conjunction with the Phase 1. 19

20 Highway 400 & Forbes Road Interchange 2041 Lane Configurations Widening of Forbes Rd & Russell Rd to four lanes and an upgraded interchange is required in conjunction with Phase 2. 20

21 Phasing of Proposed Road Improvements Detailed Drawings for each Intersection will be presented at the Public Information Centre in Sept. 20,

22 Craig Road Extension Short List of Alternatives Detailed Plan & Profile Drawings will be presented for each Alternative at the Public Information Centre on Sept. 20, 2016; The Preferred Alternative will be selected after receiving Public comments on each Alternative; 22

23 Active Transportation Routes/Links 23

24 Proposed Schedule for Completion Class EA Aug 3, 2016 Ainley to provide a Status Update to Council on the progress of the Class EA; Phase 3 Public Information Centre (PIC) is Scheduled for Sept. 20, 2016 at Snow Valley Resort; Steering Committee and Resident Liaison Group meeting s will be organized in. Oct. & Dec.; Ainley to provide a further Status Update to Council on the progress of the Class EA in Dec. 2016; Open House No. 2 in Jan/Feb. 2017; Filing of the Environmental Study Report (ESR) in Feb. 2017, which initiates the formal 30 Day Public Review Period associated with Class EA. 24

25 Proposed Schedule for Completion Class EA During the 30 Day Public Review period if an interested party has a concern with the Class EA, that cannot be resolved with the proponent, they can request the Minister of Environment and Climate Change (MOECC) for a Part II Order (formerly called a Bump-Up Request); If no Part II orders are received the Class EA process would be completed in Mar. 2017; If a Part II Order is received, the MOECC take control of the process and will conduct a comprehensive review of the concerns raised by the interested party; Subsequent to the comprehensive review by MOECC, the Minister will render a decision on the Part II Order, that is binding on all parties; 25

26 QUESTIONS? 26