MUNICIPAL CLASS ENVIRONMENTAL ASSESSMENT SCHEDULE B REPORT MUNICIPALITY OF TRENT HILLS CAMPBELLFORD POTABLE WATER SUPPLY AND DISTRIBUTION SYSTEM

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1 Background MUNICIPAL CLASS ENVIRONMENTAL ASSESSMENT SCHEDULE B REPORT MUNICIPALITY OF TRENT HILLS CAMPBELLFORD POTABLE WATER SUPPLY AND DISTRIBUTION SYSTEM - EXECUTIVE SUMMARY - The Municipality of Trent Hills (Municipality) is located along the Trent Severn Waterway in Northumberland County, north of Highway 401, in eastern Ontario. Campbellford, one of three urban communities within the Municipality, has a population of approximately 3,800 people and is serviced by a dedicated water supply and distribution system that is owned and operated by the Municipality. Refer to Figures ES-1 and ES-2 for a Location Plan map. A 2012 Inspection and Report for the Campbellford potable water storage tank identified that the community s single welded steel standpipe, originally constructed in 1996, is in need of interior and exterior rehabilitation. The rehabilitation work will require the standpipe to be out of service for approximately 8 to 12 weeks, during which time the community will require provisions to maintain water service and reduce risks associated with current treated water storage volumes. This need, coupled with the existing reliability and redundancy of the water treatment and distribution system, has led the Municipality to consider permanent upgrades that will not only service the Campbellford community during the standpipe rehabilitation, but also ensure the continued provision of safe drinking water well into the future. In January 2014, the Municipality retained (JLR) to undertake a Schedule B Municipal Class Environmental Assessment (Class EA) for the Campbellford Potable Water Supply and Distribution System (Potable Water System) to address both short and long-term storage needs and evaluate servicing solutions for the 20- year planning horizon. Public Consultation A consultation plan was developed for the project and a Notice of Commencement was published in the local newspaper, posted to the Municipality s website ( and mailed directly to mandatory stakeholders in January A Public Information Centre was held on June 14, 2014, to allow public review and comment on Phases 1 and 2 of this Class EA. A Notice of Filing the Schedule B Report was published in the local newspaper in August and September 2014, posted on the Municipality s website, and mailed directly to mandatory and interested project stakeholders. To date, all comments have been addressed, and there are no known outstanding requests related to this project. Basis of Design (20-year) During Phase 1 of this Class EA, future water demands for 2034 were projected by applying a 0.7% annual growth rate in Campbellford over the next 20 years to historical water demands. The following table identifies the existing (2009 to 2013 average) and projected (2034) water demands, used as a basis for this Class EA. August 28, 2014 ES - 1

2 Municipality of Trent Hills Campbellford Potable Water Supply and Distribution System Class Environmental Assessment Schedule B Report Executive Summary Table ES- 1: Existing and Projected Water Demands Parameter Equivalent Service Population 6,475 (1) 7,438 (2) Average Day Demand (m 3 /d) 2,612 (1) 3,000 (2) Maximum Day Demand (m 3 /d) 3,672 (1) 4,218 (2) Peak Hour Demand (m 3 /d) 7,836 (3) 9,001 (2) (1) Based on existing data from 2009 to 2013 (2) Based on a 15% growth rate from 2014 (3) Estimated by applying a 3.0 PF (MOE Guidelines, 2008) to the Average Day Demand Summary of Campbellford Potable Water System Constraints During Phase 1 of this Class EA, the existing potable water system was reviewed in the context of i) the system s operation when the existing standpipe is out of service ( Primary Constraints ), and ii) the system s day-to-day operation, regardless of whether the standpipe is in or out of service ( Secondary Constraints ). The following table summarizes the primary and secondary system constraints identified with the Campbellford Potable Water System. Table ES- 2: Summary of Campbellford Potable Water System Constraints Constraint While the Existing Standpipe is Out of Service Risk Associated with Constraint 1. Potable Water Storage Capacity Not sufficient to supply system demands 2. Water Treatment Plant Capacity Not sufficient to supply peak hour system demands 3. High Lift Pumping Capacity and Operation Not sufficient to supply peak hour system demands 4. UV Disinfection Configuration and Reliability Not reliable for continuous operation Secondary Constraints Associated with the Potable Water System with Standpipe In or Out of Service 5. UV Disinfection System Reliability Vulnerable to failure; nearing end of useful life 6. High Lift Pumping Station and UV Disinfection Location Compact layout; vulnerable to flooding and failure 7. Existing Storage at the WTP Operating challenges; no disinfection backup; no storage redundancy 8. Single Watermain to Standpipe No redundancy; vulnerable to failure or contamination 9. Single Forcemain Leaving WTP No redundancy; vulnerable to failure or contamination August 28, 2014 ES - 2

3 Municipality of Trent Hills Campbellford Potable Water Supply and Distribution System Class Environmental Assessment Schedule B Report Executive Summary Phase 1: Problem/Opportunity Statement The following Problem/Opportunity Statement was used as the basis for proceeding into Phase 2 of this Class EA: The Municipality of Trent Hills owns and operates a communal potable water supply system for the community of Campbellford that generally consists of a surface Water Treatment Plant, a potable water storage standpipe, and an underground network of distribution piping. While the system has been operating in accordance with all applicable legislation and is achieving all required water quality standards, there are certain constraints associated with the existing system that pose potential risks. In particular, the system is highly dependent on the existing potable water storage standpipe to provide emergency storage and supplement peak demands within the system during certain times of the year and under certain possible circumstances (e.g., fire incidents). This tank is nearing 20 years of service and a recent inspection indicates that rehabilitation work (i.e., coatings replacement) is required in order to maintain it in good operating condition. Taking the tank out of service to facilitate this work without backup would be challenging and a risk. In addition (and somewhat related to the above), the limited available storage at the WTP combined with the overall configuration of the high lift pumping and UV disinfection system poses certain operational challenges and other potential risks to the overall supply system. Phase 2: Identification and Evaluation of Alternative Solutions The following servicing alternatives were reviewed and evaluated in the context of their impact to the natural, social, economic, and cultural environments and in its effectiveness at addressing the various constraints associated with the Campbellford Potable Water System: Option 1: Do Nothing Maintain status quo, and consider investments the Municipality would consider within the next 5 to 10 years, regardless of the outcome of this Class EA (replace high lift pumps and UV disinfection system). Option 2: New Standpipe at the Existing Standpipe Location Install a new 5,200 m 3 glass-fused-to-steel standpipe immediately adjacent the existing standpipe, consider potential chlorination upgrades, and replace high lift pumps and UV disinfection. Option 3: Option 4: New Storage at an Alternate Location Install a new 4,300 m 3 elevated steel tower across the river from the existing standpipe, new chlorine injection system and replace high lift pumps, and UV disinfection. New Storage at the WTP Site Construct a new 1,800 m 3 capacity two-cell, below grade clearwell complete with baffling and a new high lift pumping station building, including high lift pumps, backwash pumps, and disinfection (if required) on the WTP site. August 28, 2014 ES - 3

4 Municipality of Trent Hills Campbellford Potable Water Supply and Distribution System Class Environmental Assessment Schedule B Report Executive Summary Based on the detailed evaluation of servicing alternatives and input collected through the project consultation process, the preferred alternative was identified as Option 4: New Storage at the WTP, as it was the solution that had the most positive impact to public health, with the least overall negative impacts on the social, cultural, natural, and economic environments. Project Description In general, the proposed upgrades are described as follows: Construction of a new two-cell, below-grade 1,800 m 3 capacity (sizing to be confirmed during preliminary design) clearwell to be located at the existing WTP site. A preliminary review of the site has identified the Municipality-owned lot located northeast of the existing WTP/Firehall/Clock Tower Building to be the preferred location; however, this should be confirmed during preliminary design. Refer to Figure ES-3 for a preliminary site plan concept. Demolition of existing equipment (high-lift pumps, UV disinfection, and potentially the filter backwash pump) in the basement of the WTP and construction of a new pumphouse, disinfection (if required), and control building located immediately adjacent to the new clearwell. Refer to Figure ES-4 for a conceptual layout and process schematic currently envisioned. The new high-lift pump discharge would be equipped with a pressure relief valve and bypass line during existing standpipe shutdown to bypass flows beyond the system demand and reduce system pressure as required. The upgrades would include twinned forcemains leaving the WTP to provide redundancy, in case of a forcemain break. The Municipality would develop an action plan for taking the existing standpipe out of service for its required rehabilitation, which would limit the season that the work can be completed (i.e., during lower demand seasons) and include provisions for firefighting strategies and other emergencies. Opinion of Probable Costs A Class D level cost projection was prepared for the proposed upgrades and is presented in Table ES-3 in 2014 dollars. Class D estimates are defined as follows: Work Definition: A description of the intended solutions with such supporting documentation as is available (definition of project typically in the order of 1 to 5 %). Intended Purpose: To aid in the screening of various options prior to recommending a preferred solution (not intended to establish or confirm budgets). Level of Effort: is limited and expected accuracy could range from -25% to +50%. August 28, 2014 ES - 4

5 Municipality of Trent Hills Campbellford Potable Water Supply and Distribution System Class Environmental Assessment Schedule B Report Executive Summary Table ES- 3: Summary of Probable Costs for the Preferred Solution Component Opinion of Probable Cost (1) Site Work $500,000 Clearwell $1,000,00 Pumphouse and Control Building $200,000 High-Lift and Backwash Pumps $350,000 UV System Replacement $350,000 Miscellaneous Process Mechanical Works $200,000 Miscellaneous Electrical Works $450,000 Subtotal $3,050,000 General Requirements (2) (20%) $610,000 Engineering and Contingency (20%) $610,000 Total $4,270,000 (1) Based on Class D costing estimates as outlined in Section (2) Includes contractor profit, bonds & insurance, mobilization/demobilization, etc. Project Schedule From a planning perspective, if the design process is initiated in the last quarter of 2014, the new infrastructure could be operational by the last quarter of 2016, subject to the appropriate approvals being in place. It is recommended that the proposed upgrades proceed as soon as economically and reasonably possible. August 28, 2014 ES - 5

6 File Location: P:\26000\ Campbellford WTP Schedule B Class EA\JLR DWG\GIS\26374 Municipality.mxd TOWNSHIP OF OTONABEE- SOUTH MONAGHAN UV 2 Rice Lake UV 18 TOWNSHIP OF ALNWICK/HALDIMAND UV 22 UV 38 "P TOWNSHIP OF ASPHODEL-NORWOOD Hastings Norwood Warkworth Trent River UV 45 MUNICIPALITY TOWNSHIP OF CRAMAHE UV 25 OF TRENT HILLS UV 24 UV 30 UV 25 UV 29 PROJECT: DRAWING: UV 25 UV 45 UV 42 UV 29 UV 27 UV 35 TOWNSHIP OF HAVELOCK-BELMONT-METHUEN UV 30 MUNICIPALITY OF BRIGHTON UV 28 UV 50 Campbellford Ferris Provincial Park Trent River UV 5 UV 41 DESIGN: This drawing is copyright protected and may not be reproduced or used for purposes UV 26 DRAWN: other than execution of the described work without the express written consent of CHECKED:. UV 40 UV 38 UV 8 MUNICIPALITY OF MARMORA AND LAKE CITY OF QUINTE WEST UV 33 UV 14 TOWNSHIP OF STIRLING-RAWDON CAMPBELLFORD WATER SUPPLY AND DISTRIBUTION SYSTEM - CLASS ENVIRONMENTAL ASSESSMENT MUNICIPALITY OF TRENT HILLS, ONTARIO LOCATION PLAN L.S. K.T.K. S.G. JLR NO: DRAWING NO.: FIGURE ES-1 Stirling Plot Date: August 22, :07:11 AM

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8 POTENTIAL NEW BUILDING LOCATION T R E N T R I V E R File Location: P:\26000\ Campbellford WTP Schedule B Class EA\JLR DWG\GIS\26374_WTP_Option4.mxd Legend STUDY AREA WATER TREATMENT PLANT UPGRADES MUNICIPALITY-OWNED LAND PROJECT: DRAWING: FRANK STREET POTENTIAL NEW CLEARWELL LOCATION RIVER STREET This drawing is copyright protected and may not be reproduced or used for purposes other than execution of the described work without the express written consent of. DESIGN: DRAWN: CHECKED: SASKATOON AVENUE CAMPBELLFORD WATER SUPPLY AND DISTRIBUTION SYSTEM - CLASS ENVIRONMENTAL ASSESSMENT MUNICIPALITY OF TRENT HILLS, ONTARIO OPTION 4: NEW STORAGE AT THE WTP SITE - LOCATION PLAN PRELIMINARY SITE PLAN CONCEPT L.S. K.T.K. S.G. JLR NO: FRONT STREET SOUTH DRAWING NO.: FIGURE ES-3 Plot Date: August 22, :46:07 AM

9 VERTICAL TURBINE PUMPS, TYPICAL OF 3 (2 DUTY, 1 STANDBY) BACKWASH PUMP c/w FLOW METER N.O. CELL 2 File Location: P:\26000\ Campbellford WTP Schedule B Class EA\JLR DWG\Process\Design Concepts\Clearwell Process GA.dwg BACKWASH TO PLANT FROM PLANT HIGH LIFT PUMP WELL VALVE ROOM AND OPTIONAL UV DISINFECTION N.C. TO SYSTEM TO SYSTEM FLOW METER N.O. N.C. N.C. N.O. BAFFLE WALLS BELOW TANK VENT NORMAL FLOW PROJECT: DRAWING: CELL 1 CAMBELLFORD WATER SUPPLY AND DISTRIBUTION SYSTEM - CLASS ENVIRONMENTAL ASSESSMENT MUNICIPALITY OF TRENT HILLS, ONTARIO OPTION 4 - CONCEPTUAL LAYOUT AND PROCESS SCHEMATIC This drawing is copyright protected and may not be reproduced or used for purposes other than execution of the described work without the express written consent of. DESIGN: DRAWN: CHECKED: S.G. S.D.K. B.H. JLR NO: DRAWING NO.: ES-4 PLOT DATE: August 22, :49:33 AM