town of penetanguishene payette reservoir upgrades

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TOWN OF PENETANGUISHENE PAYETTE RESERVOIR UPGRADES July 24, 2014

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TOWN OF PENETANGUISHENE

PAYETTE RESERVOIR UPGRADES

July 24, 2014

Welcome and Introductions

C.C. Tatham & Associates Ltd.:

Rod Langford, C.E.T., Project Manager

Suzanne Troxler, M.Sc., P.Eng., Manager – Environmental

Engineering

Town of Penetanguishene:

Bryan Murray, P.Eng., Director of Public Works

Moe Lefaive, C.Tech., Chief Operator, Water Division

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Project Purpose

Implement recommendations of 2012 Class EA Study.

Replace aging drinking water reservoir at Payette

Drive.

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Existing Drinking Water System

Payette DWS:

3 groundwater supply wells

3 water reservoirs (1 on-site, 2 off-site)

1 pump house

4 pressure zones

Water Storage:

Payette Drive Reservoir

Robert Street West Reservoir

Centennial Drive Elevated Tank

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Existing Payette DWS Site

Reservoir

Pump House

Well No. 3

Well No. 2

Well No. 1

Supply Water Main

Constructed in 1910 (104 yrs old)

Above-grade, earth berm around it

1,100 m³ capacity

Payette Drive Reservoir

Constructed in 1931 (83 yrs old)

Partially above-grade

1,100 m³ capacity

Robert Street West Reservoir

Constructed in 1993 (21 yrs old)

Entirely above-grade/elevated

5,000 m³ capacity

Centennial Drive Elevated Tank

2012 Class EA Study

Payette Drive and Robert Street West reservoirs

approaching end of life.

Need to be replaced to prevent failure and loss of

service.

Preferred solution is to construct new reservoir at

Payette Drive site.

Then decommission Payette Drive and Robert Street

West reservoirs.

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Preliminary Design of Upgrades

Existing Payette Drive reservoir is 15.5 m diameter

and 6.5 m high.

Cast-in-place concrete, above-grade and bermed

with earth all around.

No redundancy. Difficult to service without taking

off-line, causing service interruptions.

New Payette reservoir capacity: 2,200 m³

(combined capacity of existing Payette Drive and

Robert Street West reservoirs).

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Preliminary Design of Upgrades

Two above-grade reservoirs, each 12.8 m diameter

and 8.5 m high, 1,100 m³ capacity (2,200 m³

total).

Proposed location is generally behind existing

reservoir berm.

Also replacing existing 104 year old supply water

main from existing reservoir to Church Street. Has

reached end of life. Needs to be replaced to

prevent failure and loss of service.

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Proposed Payette DWS Site

Reservoir

Well No. 3

Well No. 2

Well No. 1

Proposed

Reservoirs

Pump House

Supply Water Main

Replaced in Same Location

Proposed Payette DWS Site Plan

Viewing Angles for Graphic Visualizations

View #3

View #1a

View #2

View #1b

Proposed view from end of Payette Drive

Graphic Visualization #1a

Proposed close-up view from end of Payette Drive

Graphic Visualization #1b

Proposed close-up view from entrance to pumphouse

Graphic Visualization #2

Proposed view from edge of existing tree line

Graphic Visualization #3

Benefits of Proposed Reservoirs

Glass-coated steel construction. Requires very little

exterior maintenance.

Not bermed around. Easier access for inspection,

maintenance and repair.

Two reservoirs allows one to remain in service if

other is off-line, providing uninterrupted water

supply.

2 m of additional height improves operating

pressure in lower zones.

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Benefits of Proposed Reservoirs

Reduces overall operating costs.

Optimized site layout: less excavation and piping,

few changes to green and open spaces.

Limited and short-term interruptions to water supply.

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Schedule

Complete design and obtain approvals in 2014.

Construction scheduled for 2015.

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Questions & Comments

Questions & Comments?

Please complete and hand-in comment sheet.

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