preparing for a water treatment plant · 2020. 1. 28. · design-build process preparing for a...

›Preparing for a Water Treatment Plant›Town of Long Harbour Case Study2017 Clean and Safe Drinking Water Workshop

Keith Bartlett, P.Eng. SNC-Lavalin Inc709-368-0118 [email protected]

AGENDAIntroduction and Presentation Road Map

Agenda

Preparing for a Water Treatment Plant: Town of Long Harbour Case Study 3

› Introduction and summary› Review of Long Harbour WTP Project› Lessons Learned› Preparing for a WTP Project› Questions

Review of Long HarbourWTP Project

THE PROBLEM

The Problem


Water Quality› DOC› Turbidity› Colour › pH› Langelier Index› DBP

HAA & Langelier IndexSummary


Existing Equipment


Water System› Two Surface Water Sources

› Trout Pond› Shingle Pond

Treatment System› Screens› Pressure Filters› Cl2 Gas Disinfection (Flow Proportional)

Town Goals


› Identified improved drinking water quality as a top priority

› System to produce water that meets Guidelines for Canadian Drinking Water Quality

› In 2009 Town received funding to undertake an EDI & prepare Design-Build TOR for WTP

DESIGN-BUILD OF WATER TREATMENT PLANTStandardized RFQ-RFP process for proponent selection

LONG HARBOUR PROCESS


EDI AND TOR FOR RFP

FLOW MONITORING

LEAK DETECTION AND REPAIR

DESIGN FLOW APPROVAL AND COMPLETION OF

RFPRFQ RFP PERFORMANCE

VERIFICATION

PREPARATION FOR THE RFP PROCESS


Feb

2009

E

DI A

ppro

ved

Aug

200

9 E

DI a

nd T

OR

Com

plet

ed

Jan-

June

201

0R

FP D

ocum

ent D

evel

oped

Sep

t 201

0 –

Aug

201

1Fl

ow M

onito

ring

Aug

ust 2

011-

Mar

ch 2

012

Loca

te a

nd R

epai

r Lea

ks

June

201

2Fu

ndin

g A

ppro

val t

o R

epla

ce W

M

Apr

201

2-M

ar 2

013

Mon

itor F

low

s &

Rep

ort t

o D

OE

C

Mar

201

3A

ppro

val o

f Des

ign

Flow

s

July

201

3R

FP D

ocum

ent C

ompl

eted

Dec

embe

r 201

3P

roce

ss C

hang

ed to

R

FQ/R

FP

RFQ/RFP PROCESS


Dec

201

3P

roce

ss C

hang

ed to

R

FQ/R

FP

Mar

201

4A

ppro

val o

f RFQ

&

RFQ

Clo

sing

May

201

4D

ebrie

fs a

nd n

otifi

catio

n to

pr

opon

ents

June

204

RFP

issu

ed to

Pro

pone

nts

July

–A

ug 2

014

Pilo

t Tes

ting

Oct

ober

201

4R

FP C

losi

ng

Nov

201

4-Fe

b 20

15P

ropo

sal R

evie

w a

nd

Neg

otia

tion

with

Pre

ferr

ed

Pro

pone

nt

Apr

il 20

15A

ppro

val o

f Add

ition

al

Fund

ing

May

, 201

5A

war

d of

Des

ign-

Bui

lt C

ontra

ct

DESIGN-BUILD PROCESS


May

, 201

5A

war

d of

Des

ign-

Bui

lt C

ontra

ct

Oct

, 201

5 10

0% D

esig

n S

ubm

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ons

Apr

il, 2

016

Wat

er T

ower

Inst

alla

tion

and

Del

iver

y of

Mod

ular

B

uild

ing

July

, 201

6C

ompl

etio

n of

Site

Civ

il an

d S

tart

Of C

omm

issi

onin

g

Sep

t, 20

16P

lant

Han

dove

r to

Tow

n

Jan,

201

7C

ompl

etio

n of

90

Day

P

erfo

rman

ce V

erifi

catio

n

Feb

2017

Fina

l Rep

ort S

ubm

issi

on



May

, 201

5A

war

d of

Des

ign-

Bui

lt C

ontra

ct

Oct

, 201

5 10

0% D

esig

n S

ubm

issi

ons

Apr

il, 2

016

Wat

er T

ower

Inst

alla

tion

and

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iver

y of

Mod

ular

B

uild

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July

, 201

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ompl

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n of

Site

Civ

il an

d S

tart

Of C

omm

issi

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g

Sep

t, 20

16P

lant

Han

dove

r to

Tow

n

Jan,

201

7C

ompl

etio

n of

90

Day

P

erfo

rman

ce V

erifi

catio

n

Feb

2017

Fina

l Rep

ort S

ubm

issi

on

PROJECT OVERVIEW


Capital Costs: $2.6M

Flow Rate (m3/day & 116 USGPM Capacity)

Town Population (design): 298

Operation cost (1st 90 days): $ 12,094.36

Performance: All Parameters Within Guidelines

LESSONS LEARNED

Contributors to Project Success


› Understanding of Town’s complete water distribution system

› Quality of Information available at RFP Stage

› Communication Plan

› Project Execution Plan Anticipating Unknowns

› Document Management System› Access to the proper Technical resources

as needed

Proposed Process Improvements


› Increased focus/detail on sludge management

› Detailed Plan/Procedures for Power Outages

› Detailed Source Water Quality Testing for 1 Year in Advance of RFP

› Engineering Study› Existing system As-Builts› Detailed Operator Training and support

plan

PREPARING FOR A WATER TREATMENT PLANT

PROCESS FOR DESIGN-BUILD OF A WATER TREATMENT PLANT


DESKTOP STUDY RFQ PROCESS RFP PROCESS DESIGN-BUILD PERFORMANCE

VERIFICATION1ST YEAR OF OPERATION

Information Gathering,

Planning and Scoping

Identification of Best Qualified

Design-Builders

Piloting and Selection of

Preferred Proponent

Completion of Design, and Construction

Verify Performance, O&M Costing and RFP Requirements

Training, System Calibration,

Initial Support

DESKTOP STUDY


› Water System Model› Review of water supply capacity/quality (As requred)› Preliminary Tank Sizing (As Required)› Budgetary Estimate› Legal Surveys› Topographical Survey› Geotechnical Report› Water Quality Monitoring/Testing› Theoretical Flows Vs Actual› Leak Detection & Repair› Confirmation of Design Flows› Water Conservation

RFQ PROCESS


› Confirm General Owner’s Statement of Requirements› Preparation of RFQ Document detailing:

› Design Flows› Water Quality› Design Standard› Selection Procedure

› Identify Proponents Most Qualified for Design Build (limit to 3-4)

RFP PROCESS


› Detailed Request for Proposals Document Including› Detailed Owner’s Statement of Requirements› Water Quality Data› Design Standard› Evaluation Criteria/Ranking Formulas

› Piloting› 30% Design Submission (By Proponents)› Proposal Review & Evaluation With Owner’s Advisor› Negotiation with Preferred Proponent› Award of Design-Build Contract



› Design Submissions – Review with Owner’s Advisor› 60%› 90%› 100%

› Shop Drawing Submission for Review by Owner’s Advisor› Construction› Start-up› Commissioning› Hand-over

PERFORMANCE VERIFICATION


› Set period for tracking of quality objectives and costing› Ongoing Training for Town Staff› Ongoing support for Town staff during operation› Final Reporting› Performance Verification Holdback› Generation of final deficiency list

First Year of Operations


› Continuation of tracking of quality objectives and costing› Pre-defined budget for support for Town staff during operation› Completion of Deficiencies› Project Closeout

QUESIONS?

Keith Bartlett, P.Eng. SNC-Lavalin Inc709.368.0118 [email protected] Clean and Safe Drinking Water Workshop

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preparing for a water treatment plant · 2020. 1. 28. · design-build process preparing for a...

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