City of Brantford Water Pressure District #1 Storage

Class Environmental Assessment Study May 6, 2015

Study Area – Pressure District #1

Pressure District #4 Pressure District #2/3

Pressure District #1

Holmedale WTP

Problem / Opportunity Statement

!! Determine the need for additional water storage in Pressure District #1 (PD#1)

!! Develop alternatives to meet water storage requirements and address low

pressure problem areas within PD#1

"! update and calibrate hydraulic model using results of field testing

"! comparison of in-ground vs. elevated storage tanks

"! evaluate feasibility of new storage at alternative locations

"! review options to address low pressure problem areas

!! Evaluate alternatives and identify a preferred solution to ensure that the City will

be provided with adequate water storage and pressures within Pressure District #1

in a safe, sustainable and cost-effective manner

“The purpose of this Municipal Class EA study is to determine the need for additional water storage in Pressure District #1 of the City of Brantford and develop potential solutions and identify a preferred alternative to meet the water storage requirements and address low pressure problem areas within PD#1. The Class EA study will examine the existing conditions and relevant background information to draw conclusions regarding the required storage to meet future demands in the City. Extensive hydraulic modeling, including updating of the model and calibration using the results of field testing, will be used to evaluate the system and determine the feasibility of implementing a new storage tank/reservoir at various sites. Feasible alternatives will be developed and evaluated, and a preferred solution will be recommended that will ensure that the City will be provided with adequate water storage in Pressure District #1 in a safe, sustainable and cost-effective manner.”

Problems / Issues to Address

1.! Water Storage: Pressure District #1 (PD#1) does not have adequate storage to

meet current or future requirements:

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2. Low Pressure Areas:

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Low pressure problem areas: •! Colborne St. W

•! Strawberry Hill

Low pressure areas during Maximum Day Demand

Water Storage Options

Comparison of In-Ground vs. Elevated Storage Tank (EST)

!! Recommendation: Elevated storage tank to address water storage issues in PD#1

ISSUE ELEVATED STORAGE TANK IN-GROUND RESERVOIR WITH BOOSTER STATION

Life cycle cost #! Lower Operating &Maintenance (O&M) costs X Requires re-coating every 15-20 years

X Higher O&M costs

Footprint/ area required #! Low X High Distribution system #! Positive impacts (More pressure stability, No

reliance on pumps to maintain minimum pressures, Reduces watermain failures; Reduces chances of leaks due to surges from pump shutdowns and power failures – less risk with respect to potential Water Quality impacts)

X Negative impacts (High dependence on pumps and high pressure fluctuations, especially during power outages)

On-site generator and approvals

#! No requirement X Required

Effect on WTP #! Positive (Eliminates need for firm capacity pumping redundancy, Saves energy costs)

X Negative (Higher pumping requirements and energy costs)

Site selection #! Greater flexibility (site elevation and size) X Higher restrictions (elevation and size requirements)

Aesthetics X Visual impact of tower, Tanks cast shadows

#! Better; residents do not see underground tanks

Safety considerations X Risks (working at heights during construction) #! Lower risk

Alternative Storage volume (m3)

Capital cost ($)

Annual O&M Cost ($/yr)

LCC ($/20 yr)

Average cost per year ($/yr)

Elevated Tank 5,000 $4,630,000 $175,000 $8,136,000 $406,800 In-ground Reservoir & Booster station 5,000 $5,390,000 $295,000 $11,290,000 $564,500

Life Cycle Costs (LCC):

Elevated Storage Alternative Sites – Site Selection Criteria

!! Site Identification Criteria •! Vacant land/open space/City owned land within PD#1 or within 5km of Water Treatment Plant •! Avoid close proximity to residential areas and other non-compatible lands (i.e. environmentally sensitive, archaeological potential, watercourses, etc.) •! Sites of high elevation (to improve areas of low pressure problems)

"! Five (5) sites were

shortlisted during the

Identification Phase

(A, B, C, D, E)

Site Alternatives – Evaluation Matrix

Impact Parameter Do Nothing A*

Colborne St W B Stanley St

C Henry St

D* John Noble Home site

E Spring

Gardens Park A1 A2 D1 D2

Public Health and Safety High Moderate Moderate to high

Moderate to

high

Moderate to

high Moderate High

Natural Environment None Moderate None to low

None to low

Moderate

Low to Moderate Moderate

Social and Cultural Environment High Moderate to high

No to low

None to low

None to low High

Legal and Jurisdictional No Low No to low None to low None to low High

Technical Considerations High Moderate High

Moderate to high Moderate Low Low

Summary / Overall Evaluation High Moderate Moderate Moderate Moderate

Low to

moderate Moderate to

high

Capital cost estimate

$ 6.18 – 7.24 M

$ 5.86 – 6.92 M $ 5.34 – 6.34 M $ 5.59 – 6.59 M $ 5.48 –

6.54 M $ 5.08 – 6.13 M

$ 4.55 – 5.58 M

Summary of Impacts:

Indicates preferred site

*Sites A and D include different options for connecting to the distribution system

Preferred Alternative Water Storage Site

Site D: Adjacent to John Noble Home Description:

•! Elevated tank; watermain along Blackburn Dr.

and local connection to Bell Lane

Advantages:

•! City/County owned land

•! Large site

•! Improves Strawberry Hill low-pressure area

Disadvantages:

•! Removal/disruption to trees, shrubs, etc.

•! Potential for disturbing natural environment

requires mitigation

•! Requires construction of watermain crossing

on high-traffic road

Conceptual Cost Estimate: $5.08 – 6.13 M

Views of EST from Immediate Neighbourhoods

View of EST from John Noble Home (#1)

View of EST from Stratford Terrace (#2)

View of EST from Winter Way (#3)

View of EST from Hillcrest Avenue (#4)

View of EST from Blackburn Drive (#5)

View of EST from south of Veterans Memorial Pkwy (#6)

Preferred Water Storage and Servicing Solution

!! Elevated storage tank (TWL ~ 270m)

located at Site D (John Noble Home

site) with associated watermains will

address water storage needs and

mitigate Strawberry Hill area’s low

pressure area

!! Isolation of Colborne St. W.

pressure zone and addition of

localized booster pumping station to

address low pressures and allow

future development

Isolate pressure zone

and add booster pumping station

Elevated storage

tank – Site D

The preferred alternative solution includes:

Phase 1

Problem or Opportunity

-!Identify problem/deficiency and opportunity

-! Notification of Project Commencement to public and agencies

Fall 2011

Phase 2

Alternative Solutions

-!Identify and evaluate alternative solutions

-! Public & agency consultation

-! Establish preferred solution

Schedule B

30 day Public Review Period

Fall 2011

Project File Report

Implementation Design and Construction

Spring 2015

Summer 2015

2015 - 2017

Class EA Process

Fall 2011

2014 Master

Servicing Plan

Communication Support

The Public Consultations will be promoted through a print and web media campaign as follows: •! Brant News – May 21 A-3 banner & Civic News

Public Information Notice •! Expositor – May 23 A-3 banner •! Expositor – May 26 A-3 banner •! Civic News (Brant News) – May 28 •! News Release – To be issued May 26th •! brantford.ca - Home page Rotating Banner Ad &

updated content on Public Works web pages

Communication Support Print & Web Ad

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Next Steps:

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! Geotechnical/ Archaeological April - May 2015

! Brant County Council May 26, 2015

! Public Information Centre May 27 2015

! Ward 1 Meeting June 2, 2015

! Project File Report (30-day Review) Summer 2015

! Preliminary Design 2015

! Detailed Design 2016

! Construction 2016 – 2017