design work plan, water supply replacement plan

Design Work Plan

City of St. Louis Water Supply Replacement

Prepared for: City of St. Louis, Michigan

October 12, 2012 Project No. G110655WP

Fishbeck, Thompson, Carr & Huber, Inc. Engineers • Scientists • Architects • Constructors 1515 Arboretum Drive, SE, Grand Rapids, MI 49546 Telephone: 616-575-3824

DESIGN WORK PLAN

CITY OF ST. LOUIS

WATER SUPPLY REPLACEMENT

PREPARED FOR:

CITY OF ST. LOUIS, MICHIGAN

OCTOBER 12, 2012 PROJECT NO. G110655WP

TABLE OF CONTENTS

Z:\2011\110655WP\WORK\REPT\DESIGN WORK PLAN\DESIGNWORKPLAN_2012_1012.DOCX i

1.0 INTRODUCTION .............................................................................................................................. 1

2.0 REVIEW OF ALTERNATIVES ANALYSIS ...................................................................................... 2 2.1 No Action ............................................................................................................................. 2 2.2 Modifications to Existing System ........................................................................................ 2

2.2.1 Installation of New Type I Water Supply Wells ...................................................... 2 2.2.2 Treatment of the Supply Water .............................................................................. 3 2.2.3 Use Surface Water ................................................................................................. 3

2.3 Regional Alternatives .......................................................................................................... 3

3.0 DESCRIPTION OF SELECTED ALTERNATIVE ............................................................................. 4 3.1 Water Supply ....................................................................................................................... 4 3.2 Raw Water Transmission .................................................................................................... 5 3.3 Treatment Plant Improvements ........................................................................................... 5 3.4 Finished Water Transmission ............................................................................................. 6 3.5 Distribution System Improvements ..................................................................................... 6

4.0 PROJECT TASKS ............................................................................................................................ 7 4.1 Locate and Install Supply Wells .......................................................................................... 7

4.1.1 Review Potential Well Sites ................................................................................... 7 4.1.2 Conduct Test Borings ............................................................................................ 7 4.1.3 Install Test Wells and Conduct Drawdown Testing ............................................... 8 4.1.4 Water Supply Basis of Design and Permitting ....................................................... 9 4.1.5 Install Production Wells .......................................................................................... 9

4.2 Preliminary Design .............................................................................................................. 9 4.2.1 Well Pumps and Well Houses .............................................................................. 10 4.2.2 Transmission Mains and Water Distribution System Improvements ................... 10 4.2.3 Water Treatment Plant Improvements ................................................................. 11 4.2.4 Booster Stations ................................................................................................... 12 4.2.5 Preliminary Design Report ................................................................................... 12

4.3 Final Design ...................................................................................................................... 12 4.4 Bidding .............................................................................................................................. 14 4.5 Construction ...................................................................................................................... 14

4.5.1 Preconstruction Tasks ......................................................................................... 14 4.5.2 Construction ......................................................................................................... 14 4.5.3 Start-up and Training ........................................................................................... 15 4.5.4 Decommission and Abandon Existing Wells ....................................................... 16

4.6 Project Closeout ................................................................................................................ 16

5.0 MANAGEMENT STRATEGY ......................................................................................................... 17 5.1 Key Personnel ................................................................................................................... 17

5.1.1 City ....................................................................................................................... 17 5.1.2 Water Authority .................................................................................................... 17 5.1.3 Regulatory ............................................................................................................ 17 5.1.4 Engineer ............................................................................................................... 18 5.1.5 Contractors ........................................................................................................... 18

5.2 Project Communications ................................................................................................... 18 5.2.1 Written Correspondence ...................................................................................... 18 5.2.2 Project Meetings .................................................................................................. 18 5.2.3 Quarterly Progress Reports ................................................................................. 18 5.2.4 Improvement Design Reports and Permits .......................................................... 19

5.3 Schedule ........................................................................................................................... 19

6.0 REFERENCES ............................................................................................................................... 20 APPENDIX 1 - TENTATIVE PROJECT SCHEDULE

TABLE OF CONTENTS

Z:\2011\110655WP\WORK\REPT\DESIGN WORK PLAN\DESIGNWORKPLAN_2012_1012.DOCX ii

LIST OF ABBREVIATIONS/ACRONYMS Alma City of Alma, Michigan ARI adverse resource impact City City of St. Louis, Michigan FTC&H Fishbeck, Thompson, Carr & Huber, Inc. gpm gallons per minute MDEQ Michigan Department of Environmental Quality mgd million gallons per day p-CBSA para-chlorobenzene sulfonic acid SCADA Supervisory Control and Data Acquisition USEPA U.S. Environmental Protection Agency

10/12/2012 1 Z:\2011\110655WP\WORK\REPT\DESIGN WORK PLAN\DESIGNWORKPLAN_2012_1012.DOCX

1.0 INTRODUCTION

The City of St. Louis, Michigan (City), is undertaking a project to replace its municipal water supply due to

water quality issues. The most viable remedy has been determined to be the formation of a joint water

authority with the City of Alma, Michigan (Alma), which would supply water to both communities. The

project will include the replacement of the existing City groundwater supply wells with new groundwater

supply wells; transmission of the raw, untreated groundwater to the Alma Water Treatment Plant (Water

Plant); Water Plant improvements; and distribution system improvements for the transmission of treated

water to the City.

This Design Work Plan serves to fulfill the requirements of the Settlement Agreement, Order Approving

thereof dated March 31, 2011, between the City and other named parties therein. Approvals of the Design

Work Plan by the U.S. Environmental Protection Agency (USEPA) and the Michigan Department of

Environmental Quality (MDEQ) are required as part of the Settlement Agreement. The project involves

infrastructure for the supply, treatment, transmission, and storage of municipal water. As such, the

improvements will fall under the jurisdiction the Michigan Safe Drinking Water Act 1976 PA 399, as

Amended, MCL §325.1001 to 325.1023 and the Administrative Rules, Supplying Water to the

Public R325.10101 to R325.12820. Water withdrawal permitting will be completed as described under

Part 327, Great Lakes Preservation, of the Natural Resources and Environmental Protection

Act, 1994 PA 451. Design and construction of associated buildings and structures will conform to the

requirements of the Michigan Building Code.

It is assumed that while the USEPA will have review authority as it relates to the Settlement Agreement,

permitting for the project will be as completed for a typical water supply project in Michigan. This would

include permit review/approval through the MDEQ for Part 399 permits, and the local authority having

jurisdiction for associated building permits. It is anticipated that applicable EPA approvals will be required

prior to MDEQ permit issuance, although reviews may occur simultaneously.


2.0 REVIEW OF ALTERNATIVES ANALYSIS

Alternatives for replacement of the City water supply were evaluated in a study Preliminary Investigation

for Alternate Groundwater Supply, City of Saint Louis, Michigan, by FTC&H, March 17, 2006. This study

evaluated the following alternatives to address the detection of para-chlorobenzene sulfonic acid

(p-CBSA) in four of six City groundwater supply wells:

● No Action

○ Continue to use the existing supply wells

● Modifications to Existing System

○ Installation of new Type I water supply wells

○ Treatment of the supply water

○ Use surface water

● Regional Alternatives

○ Connection to other water supply systems

2.1 NO ACTION

No action would consist of long-term continued use of the existing wells for water supply for the City.

p-CBSA was detected in four of the six existing groundwater supply wells. The p-CBSA concentrations in

groundwater sampled from the supply wells were significantly below the proposed MDEQ Drinking Water

Criterion. However, two supply wells are thought to be particularly susceptible to further water quality

degradation, due to their close proximity to a monitoring well that exhibits high levels of p-CBSA. As a

result of this, and the general fate and transport characteristics of p-CBSA, long-term reliance of the

existing wells was not recommended. Continued use of the existing wells was considered acceptable for

the time it takes to implement the eventual remedy. However, the no-action alternative was not

recommended as a long-term solution.

2.2 MODIFICATIONS TO EXISTING SYSTEM

Alternatives were considered for changing or treating the water supply. These alternatives considered

ways to provide a remedy to the well contamination with the City remaining an independent supplier of

water to the community.

2.2.1 INSTALLATION OF NEW TYPE I WATER SUPPLY WELLS

Installing new Type I water supplies in the St. Louis area was considered. Wells would need to be located

at sites where their hydraulic influence does not include potential sources of contamination, including the

identified p-CBSA plume. With the need to locate new wells beyond the hydraulic influence of the p-CBSA

source, significant lengths of transmission mains would be required. The number of wells required would

be dependent on the capacity of suitable wells located by hydrogeologic investigation. The local


geological conditions are not favorable to the development of high-capacity well supplies. Therefore,

several lower capacity wells may be required to achieve the necessary capacity. Finally, arsenic is

present in the groundwater supplies in many surrounding areas. This could necessitate treatment for a

new groundwater supply.

2.2.2 TREATMENT OF THE SUPPLY WATER

Treatment of groundwater from the contaminated wells could be possible. The two systems that were

considered are centralized treatment and point of use membrane treatment devices. Extensive study and

pilot testing would be required to verify the efficacy of membrane treatment. A significant concern relative

to treatment is the compatibility of the treatment process with potential additional future contaminants.

Other concerns are the time required to design and construct such a process once the design parameters

can be predicted or are known; the disposal of the concentrate stream produced as a result of treatment;

and the differing water quality that will occur as a result of treating some, but not all, of the wells.

2.2.3 USE SURFACE WATER

Surface water (the Pine River) is a potential alternative source of supply for the community. Because it is

of such poor quality, a significant treatment process would be required. The processes would likely

include coagulation, softening, filtration, ozonation, and biologically active filtration. This alternative was

not considered to be a cost effective or viable alternative for further consideration.

2.3 REGIONAL ALTERNATIVES

A connection to the Alma system was evaluated as a technically feasible alternative. Alma has a central

softening and filtration plant; they currently obtain some of their water supply from groundwater sources,

as well as some from the Pine River. However, Alma is moving more in the direction of obtaining most, if

not all, of their water from groundwater sources. As a result, they are in the process of investigating

additional groundwater supplies. Since Alma softens their water and St. Louis currently does not, use of

Alma water as a secondary supply was not considered feasible, since it would probably not be acceptable

to regularly mix the two sources. The potential for localized softening at the point of mixing could lead to

maintenance issues and customer complaints because of the differing quality. Connection to the Alma

system as a primary source was considered a feasible alternative.


3.0 DESCRIPTION OF SELECTED ALTERNATIVE

Evaluation of improvements for the long-term remedy are described and evaluated in the Cities of Alma

and St. Louis, Michigan, Water Supply and Treatment Study, by FTC&H, February 2011. The principal

alternative is for the City to join with the City of Alma to form a combined authority for the supply of

municipal water for both communities. The project will consist of replacement of the existing St. Louis

supply wells, raw water transmission to the City of Alma Water Plant, Water Plant expansion, and

transmission and distribution system improvements.

3.1 WATER SUPPLY

The project will include the replacement of the City’s existing groundwater supply, which includes a total

capacity of 3.56 million gallons per day (mgd), and a firm capacity (capacity with the largest well out of

service) of 2.8 mgd. The number of wells installed will be dependent on the capacities of the individual

replacement wells. The City will install enough new wells to achieve the minimum capacities as provided

by the existing wells.

Potential locations for new wells were identified along the Pine River near City of Alma Well 8, in Pine

River Township, and Arcada Township. Initial project cost estimates were based on the concept of

installing two wells near the City of Alma’s Well 8, and additional wells in Sections 29, 30, 31, and 32 of

Pine River Township. More complete investigations are required during preliminary design to identify the

exact capacities and the best locations for wells in these potential locations.

It has been assumed that a 10-acre parcel will be obtained for each well location. This will provide

adequate isolation distance around the well. The ultimate parcel size may vary based on the size and

location of available properties. Each well house would include the respective well/well pump and

provisions for well blow-off piping, flow metering, flow surge control, telemetry system components for

remote operation and monitoring from the Water Plant, chemical feed injection, and standby power.

The use of the new wells is expected to impact some existing, adjacent private wells. Many of these wells

will likely need to be modified or replaced to keep them in operation. Based on a cursory survey of wells

in the area, it was estimated that 20 wells may need to be replaced, and another 50 wells may need to

have well pumps lowered. Costs have been included in the total project cost for this work.

The existing City municipal supply wells will need to be properly abandoned after the new water system

has been completed. The cost for well abandonment has also been included in the cost estimate for

this study.


3.2 RAW WATER TRANSMISSION

New raw water transmission mains will be designed and constructed based on the location and capacities

of suitable replacement wells. Design considerations for the raw water transmission main will include size,

location, and materials of construction. Routing will be dependent on the well locations, redundancy and

availability of water service agreements in adjacent townships. No water service agreements are currently

in place for Arcada Township, which could affect well siting and transmission main routing for those

prospective sites.

3.3 TREATMENT PLANT IMPROVEMENTS

Raw water will be transmitted to the Alma Water Plant for treatment. Improvements at the Water Plant will

be necessary to increase capacity by 2.0 to 2.8 mgd to accommodate supply to the City. Physical and

operational changes to the softening and filtration processes will be required. The biggest components of

the expansion will involve the clarifiers and filters. The current split treatment softening is conducted with

an 85%/15% split with 85% of the raw water (including all of the surface water) being directed through the

primary clarifier with a 15% bypass to the final (secondary) clarifier. Increased capacity may be able to be

accommodated by increasing the flows through the existing clarifiers and adjusting the flow split. The

addition of a softening train of smaller sized clarifiers may be required depending on water chemistry.

Filtration improvements will include addition of one to two filters. Final parameters for process

improvements will be developed in the preliminary design phase, based on the expansion capacity and

water chemistry of the new supply wells.

Other anticipated improvements at the water plant include the following:

● Addition of a variable frequency drive to one of the river pumping station pumps

● Plant water flow metering

● Replacement of existing clarifier scraper in final clarifier

● Redundant settled water piping

● Redundant high service discharge line

● Pump gallery overhead crane

● 500,000-gallon backwash wastewater overflow tank

● Chemical feed system controls improvements

● Replacement of lime slakers

● Chemical storage containment system improvements

● Replacement of gas chlorine with sodium hypochlorite system

● Sludge lagoon improvements

● SCADA system upgrades

● Electrical system upgrades


3.4 FINISHED WATER TRANSMISSION

Finished water transmission and storage improvements will be required to deliver water in quantity and

pressure needed to serve the City. Two new transmission mains from Alma to the City would be required

for redundancy. Preliminary sizing of the transmission mains was determined by hydraulic modeling to be

16-inch diameter to achieve a flow of 3 mgd to the City. Each transmission main will include an in-line

booster pumping station. Booster pumping was determined to be necessary to deliver the design capacity

with one of the mains out of service. A 200,000-gallon elevated storage tank is proposed in the City to

maintain system fire flow. Preliminary routes for the transmission mains and locations for the in-line

booster stations and elevated tank were developed in previous studies. Locations would need to be

finalized based on property availability and acquisitions.

3.5 DISTRIBUTION SYSTEM IMPROVEMENTS

Further improvements to the Alma distribution system will be required to support the transmission mains

to the City. These include a new 20-inch high service discharge line from the Water Plant, and a 16-inch

transmission main through Alma. Improvements to or replacement of another 16-inch main through Alma

may be required, depending on efforts to locate a hydraulic restriction in the existing pipe serving the

distribution system. This section of pipe is included in the project because it will support flow to the City.


4.0 PROJECT TASKS

Project tasks necessary to complete the selected remedy are described in the sections that follow.

4.1 LOCATE AND INSTALL SUPPLY WELLS

4.1.1 REVIEW POTENTIAL WELL SITES

A groundwater supply study will be conducted to evaluate all relevant factors to identify areas that warrant

additional investigation for potential water supply sites. This will include examining watersheds and other

surface water features, the regional and local hydrogeology, the location of residential wells, and the

location of significant known/potential sources of contamination. It will also include running the Adverse

Resource Impact (ARI) assessment program available from the MDEQ for prospective sites. A

memorandum prepared by FTC&H for the City in 2008 provided a preliminary review of hydrogeological

conditions in the northwest portion of Pine River Township, and identified some areas of interest for

potential well sites.

Upon identification of area(s) suitable for a groundwater supply well, potential test boring locations will be

identified to further examine the hydrogeological characteristics of the investigation area. The test boring

data will be evaluated to determine if a given site warrants the installation of a test well. Ultimately, the

boring data will be used, along with other factors, to select the most suitable location for a test/production

well. Once the test boring locations are selected, arrangements with property owners will need to be

made to access the property and complete the investigation.

4.1.2 CONDUCT TEST BORINGS

Once the preliminary evaluation has been completed and property access approvals have been acquired,

a drilling Contractor will be selected and the test borings will be completed. The test borings should be

drilled to the base of the glacial drift (estimated to be 200 to 400 feet in the St. Louis area).

Representative formation samples should be collected, and a detailed borehole log prepared by the

driller. Upon completion, it is recommended that the boreholes be geophysically logged using natural

gamma and resistivity equipment. Monitoring wells should be installed at each test boring location where

favorable conditions exist.

It is recommended that 5-inch diameter PVC wells be installed. This will allow for sampling of

groundwater for analytical testing to determine groundwater quality and completion of a short pumping

test (50 to 70 gpm at most), to help evaluate the potential of the aquifer to sustain pumping from large

diameter test production well.


4.1.3 INSTALL TEST WELLS AND CONDUCT DRAWDOWN TESTING

Based on the results of the test boring investigation, a test production well will be installed at the site

exhibiting the greatest likelihood of being a suitable location for a Type I well. In addition, a second

monitoring well will be installed at this location to complete proper aquifer performance testing. Proper

MDEQ notification/permitting requirements will be completed; following MDEQ approval, the test

production well will be installed. It is anticipated that the MDEQ will conduct site visits to prospective test

well sites prior to installation of test wells.

A pilot hole for the test production well will be completed, and representative formation samples collected

from the aquifer material for grain size analysis. The pilot hole will be geophysically logged. Upon receipt

of the results of grain size analysis, the test production well will be properly designed.

The test production well will be constructed of 12- to 16-inch diameter steel well casing and a stainless

steel well screen. The well screen length and slot size will be determined after analysis of the pilot boring

data. The test production well will comply with all MDEQ Type I well construction requirements. The

drilling contractor will be required to complete plumbness and alignment testing.

Following installation and development of the test production well, an 8-hour step (capacity) test will be

completed (pumping at various flow rates). In addition, a constant rate 24- to 72-hour aquifer performance

test will be completed (depending on the confined or unconfined nature of the aquifer). Water level data

from the observation wells during the test will be collected for analysis of aquifer characteristics and to

determine the safe yield and a rated capacity of the well. The pumping effects of the test production well

will also be evaluated on nearby hydrologic features, sites of environmental contamination, and private

residential wells.

The steps for installation and testing of a test production well discussed above will be repeated for each

additional test production well as required.

The acquisition of property for the well sites will need to be conducted concurrently with the water supply

investigations. The best scenario would be to complete property acquisition after successful installation of

test wells which prove to be suitable for use as production wells. It is anticipated that property acquisition

efforts will require input from a real estate professional and legal counsel, as well as from the Consultant

hydrogeologist and engineering team. In addition to suitability for location of water supply wells,

provisions for survey, legal descriptions, environmental site assessments, easements, title search, etc.,

will need to be considered.


4.1.4 WATER SUPPLY BASIS OF DESIGN AND PERMITTING

Based on data from the test production wells, a preliminary basis of design for source water supply

replacement and an aquifer test report will be developed. The basis of design will include the size and

estimated capacity of each proposed well. The basis of design and aquifer test report will be used to

estimate the source water capacity. The basis of design and aquifer test report will be issued to the

project stakeholders for review and comment during the permitting process. The project stakeholders are

anticipated to include the Cities of St. Louis and Alma, the MDEQ and the EPA.

The MDEQ has responsibility for permitting new or increased large quantity water withdrawals under

Part 327, Great Lakes Preservation, of the Natural Resources and Environmental Protection Act, 1994

PA 451. The water withdrawal permit is required for new withdrawals from the waters of the state over

2 mgd. Since the proposed wells would be under the ownership of the Authority rather than the City, and

since the location of the wells would change from the existing well locations, it is assumed that the new

well capacity would be viewed as a new withdrawal and would require permitting under the referenced

regulation.

An Adverse Resource Impact (ARI) assessment will be conducted for each proposed well in support of

the request for approval of the water withdrawal. The design basis, ARI, and aquifer test report will be

submitted to the MDEQ for review, and as supporting data to secure approvals for water withdrawal

permitting and production well design and installation.

4.1.5 INSTALL PRODUCTION WELLS

Upon approval of necessary applicable permits and property acquisition, and upon review of comments

from the project stakeholders, the production wells will be installed. Wells will be installed by qualified well

drillers selected through a competitive bidding process. The number of contracts and Contractors

required will depend on the number of production wells to be installed, and the schedule.

After the production wells are installed and developed, they will be sampled for water quality analysis and

capped until installation of their respective well pump and well house.

4.2 PRELIMINARY DESIGN

Preliminary design on the water system improvements will begin when sufficient data is available on the

water supply well relocation. Some preliminary design tasks for water plant improvements, finished water

transmission, and distribution system can begin and occur concurrently with the well supply

investigations, once design flows are firmly established.


4.2.1 WELL PUMPS AND WELL HOUSES

Preliminary design tasks for the wells will occur after production wells are installed and property

boundaries are established.

A topographical survey will be conducted at each well site that will indicate property boundaries, grades,

existing utilities, and surface features. A preliminary site plan for each well site will be developed from the

survey showing the orientation of the well house, site access, and routing of buried piping systems.

Additional soil borings will be taken as may be required for design of the building foundation. A

geotechnical report will be completed indicating recommendations for construction excavation,

dewatering requirements, and footing/foundation design for each well house.

Preliminary well pump selections will be completed based on the respective well depth, proposed

capacity, and hydraulic losses through the raw water transmission main. Preliminary piping layouts will be

developed.

A building code review will be conducted for the new facilities to verify local code requirements for

building systems and to identify the local authority having jurisdiction for related building, electrical, and

mechanical systems permits.

Preliminary design deliverables will include the pump selection criteria, preliminary drawings, and a

preliminary list of technical specifications. Preliminary drawings will include a site plan, piping plans and

sections, an electrical one-line diagram, and a system control configuration diagram, which will show

required telemetry and SCADA system components.

4.2.2 TRANSMISSION MAINS AND WATER DISTRIBUTION SYSTEM IMPROVEMENTS

For the raw water transmission main preliminary design, hydraulic modeling will be used to size the

pipeline based on the location of the wells and their proximity to the Water Plant. The model will also be

used to establish the design hydraulic grade line for the various pumping scenarios involved.

A topographical survey will be conducted along each pipeline route to establish vertical and horizontal

control along the route and identify surface features. Soil borings will be taken at appropriate intervals

along each pipeline route. A geotechnical report will be completed indicating recommendations for

construction excavation, dewatering requirements, and footing/foundation design for the transmission

mains. Preliminary pipeline routing will be established based on the survey and geotechnical data.

The preliminary design data will be used to identify areas where easements will be required, and areas

which may require trenchless installation techniques for pipeline installation. Based on the design

criteria for the transmission mains, an analysis will be conducted to identify appropriate pipe materials


to be specified for pipeline construction. Surface restoration requirements will be identified for each

pipeline route.

4.2.3 WATER TREATMENT PLANT IMPROVEMENTS

Preliminary design tasks for the Water Plant improvements can begin as soon as final expansion

capacities are established and water chemistry data from the new water supply wells can be

approximated. Conceptual plant expansion scenarios were developed for cost estimating purposes in

previous study efforts. These looked at various flow scenarios making assumptions on operational

requirements for split treatment. During preliminary design, water softening chemistry would be modeled

to identify the most efficient treatment configuration for anticipated flow and raw water source/quality

combinations.

Preliminary piping system sizing and layouts will be developed based on hydraulic grade line calculations

through the treatment process, and a process flow schematic summarizing treatment flows will be

completed. Preliminary equipment sizing and selections (clarifier mechanisms, lime slakers, and chemical

feed tanks/equipment) will be made based on required capacities.

A topographical survey will be conducted at the treatment plant site that will indicate property boundaries,

grades, existing utilities, and surface features. A preliminary site plan will be developed from the survey

showing the orientation of proposed new structures and building additions.

Additional soil borings will be taken as may be required for design of the building and tank foundations. A

geotechnical report will be completed indicating recommendations for construction excavation,

dewatering requirements, and footing/foundation design for each well house.

A facilities assessment of the existing treatment plant will be conducted to determine components to be

upgraded as part of the project. The facilities assessment would include a review of the existing building

envelope, equipment, and processes for suitability for continued service with the upgraded plant.

A building code review will be conducted for the new facilities to verify local code requirements for

building systems and to identify the local authority having jurisdiction for related building, electrical, and

mechanical systems permits. Tank and building addition layouts will be developed to show modifications

to existing structures and new structures to be provided.

Preliminary design deliverables will include a treatment plant basis of design, equipment selection criteria,

preliminary drawings, and a preliminary list of technical specifications. Preliminary drawings will include a

treatment plant floor plan, a site plan, a process flow schematic summarizing the plant processes, a

hydraulic profile showing water flow through the plant, piping plans and sections, an electrical one-line

diagram, and a system control configuration diagram, which will show required telemetry and SCADA

system components.


4.2.4 BOOSTER STATIONS

Preliminary design tasks for the in-line booster stations will be similar to those described for the well

houses and Water Plant improvements. Specific to the booster station preliminary design would be the

sizing of the pumps for the hydraulic criteria. Distribution system hydraulic modeling efforts used in the

design of the finished water transmission mains would be used to support the design of the booster

stations.

The booster stations may be bid as separate projects, or combined with other bid packages depending on

schedule and the contract structure ultimately developed and approved by the Authority.

4.2.5 PRELIMINARY DESIGN REPORT

The preliminary design will be summarized in report format The preliminary design report will include a

written description of project components, a preliminary list of anticipated contract drawings, a list of

anticipated specifications, preliminary design drawings as described herein, and an opinion of probable

cost for project components. The opinion of probable cost will be reflective of known project components

and will include contingencies for undeveloped design details and recommended construction

contingency allowances.

The preliminary design report will be issued to the project stakeholders for review and comment prior to

initiating final design. If needed, a meeting will be held with the interested parties to discuss review

comments and identify modifications to the preliminary design components, as applicable. Preliminary

design deliverables may be issued in more than one document to cover the respective project tasks,

depending on the breakdown of the tasks between the consultant team and the schedule for the

individual project components.

4.3 FINAL DESIGN

Upon authorization by the Owner and approvals of applicable regulatory agencies, final design will

commence. Tasks specific to the transmission main and distribution system improvements will include the

following:

● Design pipeline connections with consideration given to transmission main isolation requirements and

pipe materials.

● Prepare plan and profile drawings along the pipeline route.

● Prepare maintaining traffic plans including detour routes for closures and access plans for residents.

● Design crossings designated for trenchless construction techniques as may be required, such as for

water crossings.

● Develop guidelines for pipeline chlorination and pressure testing.

● Prepare easement documents identified as necessary during the preliminary design.


Final design tasks specific to the well houses, Water Plant, and booster stations will include the following:

● Complete hydraulic analyses for design of pumping and piping systems, as applicable.

● Complete design of process tanks based on applicable regulatory requirements and treatment

criteria.

● Complete design of building systems including structural, mechanical, electrical, and instrumentation

systems to support the necessary processes for the identified improvements.

● Prepare a basis of design for the proposed improvements summarizing tank and equipment sizing

and design criteria.

● Develop guidelines for pipeline chlorination and pressure testing

Final design tasks applicable to all the project improvements and to each set of bidding documents

developed include the following:

● Develop separate bidding packages for related project components to be completed under each

contract issued by the Owner. It is anticipated that the pipeline construction components will be bid as

two or more projects depending on schedule and total amount of pipeline to be constructed. It is

anticipated that the well houses, booster stations, and Water Plant work will also be bid as two or

more contracts depending, again, on schedule and total project scope.

● Prepare construction drawings and specifications in accordance with the standards of the Authority,

MDEQ, and other applicable regulatory agencies.

● Prepare Division 00 and Division 01 front end specifications to include the Standard General

Conditions of the Construction Contract by the Engineers Joint Contract Documents Committee.

These documents will identify contractual and administrative requirements of the contractors. These

documents will also specify project sequencing and scheduling requirements.

● Prepare 50% and 90% drawings in major subdivisions to include civil, architectural, structural,

process, mechanical, electrical, and instrumentation/control, as applicable to each project for review

by the project stakeholders.

● Prepare technical specifications for bidding purposes. The specifications will follow the Construction

Specification Institute numbering standard.

● Prepare final drawings for bidding purposes, in major subdivisions to include civil, architectural,

structural, process, mechanical, electrical, and instrumentation/control, as applicable to each project.

● Prepare the permit applications for the Public Act 399 Water System Construction Permits for

approval by the MDEQ. The permit application will be submitted following completion of the design,

and will cover all treatment system improvements for each respective set of project bidding

documents.


4.4 BIDDING

Bid phase tasks would apply to each respective set of bid documents, and would included the following:

● Advertising the project to prospective bidders.

● Distribution of drawings and specifications to bidders.

● Prebid meeting with bidders to summarize project components and answer questions.

● Issuance of addenda as may be needed to clarify bid documents.

● Evaluation of bids received and identification of qualified bids for selection of a Contractor for award.

● Submit bids for approval for distribution of funds as may be required by the Settlement Agreement.

● Award of project by issuance of a Notice of Award to prospective Contractor.

4.5 CONSTRUCTION

4.5.1 PRECONSTRUCTION TASKS

After the Notice of Award for each project is executed by the parties to the contract, the Contractor will

submit bond and insurance information for review. With appropriate documentation in place, the Owner

and Contractor representatives will execute the Contract Documents, which will also establish the

contract price and times.

A preconstruction meeting will be held; this meeting will be used to discuss protocols for project

communication, chain of command, payment procedures, regulatory permit requirements, and other

contractual obligations of both parties. Representatives of the Owner, Consultant (Engineer), Contractor,

and Subcontractors will be required to attend. Regulatory agencies will be invited to participate, if desired.

Prior to construction, the Contractor will be required to submit a detailed project schedule, a schedule of

values, and a schedule of submittals for approval by the consultant and for use in tracking project

progress. Prior to beginning work onsite, the Contractor will be required to secure applicable building

permits and a soil erosion control permit from the local authority having jurisdiction.

4.5.2 CONSTRUCTION

Construction will commence upon issuance of a Notice to Proceed or execution of the Contract

Documents, as applicable to the specific contract requirements for each respective project. Prior to

ordering materials or equipment, the Contractor will be required to provide submittals for review and

approval by the consultant.

Regular project progress meetings will be held approximately monthly. Representatives of the Owner,

Engineer, Contractor, and Subcontractors actively performing work will be required to attend. Regulatory

agencies will be invited to participate, if desired.


The Contract Documents will establish procedures for roles and responsibilities of the Owner, Contractor,

and Engineer during the construction. The Contract Documents will also include procedures for

modifications to the Work, the contract price, or the contract times, if required. Proposed modifications to

the work will be issued to MDEQ for approval related to permitting. Proposed modifications to the work

for project components involving funding under EPA jurisdiction will be forwarded to EPA for review, prior

to approval by the Engineer.

Contractor requests for payment will occur on a monthly basis. The procedure for payment will include

submittal of a draft pay application by the Contractor to the Engineer. After approval by the Engineer, the

pay application will be forwarded to the Owner for payment. Payment requests for project components

involving funding under EPA jurisdiction will be forwarded to EPA for review. The procedure for

Contractor payment and distribution of funds will need to be coordinated with requirements of the

Settlement Agreement.

The Contractor will be responsible for means and methods to complete the work and site safety. The

Contractor will be required to provide a project superintendent to supervise the work under the contract.

The project superintendant will be a primary contact for site related activities.

The Owner will be responsible to provide access to the Work, provide payments to the Contractor for

work completed, and provide direction to the Contractor through the Engineer for requests for information

or data related to the Owners operations as may arise.

The Engineer will be responsible to provide clarifications to the Contract Documents as may be required,

notify the Contractor of defective work, issue determinations in the event of claims for costs or contract

time between the Owner and Contractor, review material and equipment submittals, review Contractor

pay applications and make recommendations for payment to Owner, and provide onsite construction

observation for conformance to the Contract Documents. The Engineer will also be responsible to review

Contractor project closeout documentation and make recommendations to the Owner regarding making

final payments.

4.5.3 START-UP AND TRAINING

The project schedule will include time for system start-up and training for each project component. Each

equipment supplier will be required to provide training to the Owner and to review operations and

maintenance procedures with the Owner. The amount of time required for start-up and commissioning will

depend on the complexity of the respective system. A startup transition plan will be developed to provide

a description of the commissioning of new facilities, and decommissioning of facilities to be abandoned.

The start-up transition plan will be based on Contractor schedule submittals and input from the operations

staff. The intent of the plan is to coordinate Contractor activities with operations to facilitate a smooth

transition to use of the new facilities.


4.5.4 DECOMMISSION AND ABANDON EXISTING WELLS

The existing City wells will need to be properly abandoned after the new water system has been

completed. The use of the new wells is expected to impact some existing, adjacent private wells. Many of

these wells will likely need to be modified or replaced to keep them in operation. Based on a cursory

survey of wells in the area, it was estimated that 20 wells may need to be replaced and another 50 wells

may need to have well pumps lowered.

4.6 PROJECT CLOSEOUT

In order to achieve project closeout, the Contractor must successfully complete all project work as

indicated on the Contract Documents, including “punch list” completion items that may be issued by the

Engineer during final inspections of the Work. The Contractor must also submit the following project

closeout documentation:

● Approvals from authorities having jurisdiction for applicable local permits.

● Operation and maintenance manuals.

● Consent of Surety for reduction of retainage amount and final payment.

● Waiver of Lien.

● Warranty.

● Final project accounting statement and pay application.

● Project As-Built Record Drawings.

A final change order will be issued to the Contractor and Owner to document any final changes to

contract price or time. Upon execution of the final change order and submittal of all applicable closeout

documentation, and upon recommendation by the Engineer and approval of the applicable regulatory

agencies (MDEQ, USEPA, local building permitting authority), the Owner will issue a final payment to the

Contractor signifying final completion. The Contractor will be required to provide a minimum one-year

warranty on the work. The warranty period will commence upon achievement of Substantial Completion

as defined in the Contract Documents.


5.0 MANAGEMENT STRATEGY

A project management approach will be used to conduct the implementation of the selected remedy.

Primary contacts will be established for each party that will be responsible for communications with the

project team, directing the tasks within their respective organizations, and for the dissemination of project

information within their respective organizations.

5.1 KEY PERSONNEL

5.1.1 CITY

The City will have primary responsibility for allocation of funds designated for the improvements required

to replace the City Water Supply and directing the actions of the Consultant and the Contractors involved

in implementation of the remedy. The primary contact for the City will be Mr. Robert McConkie,

St. Louis City Manager.

5.1.2 WATER AUTHORITY

The Gratiot Area Water Authority will have the authority to approve the proposed water system

improvements to be implemented in the remedy. The Authority will have ownership of the improvements

and so will have the responsibility to negotiate property acquisitions and water service agreements as

required for new infrastructure. The primary contacts for the Water Authority will be Mr. Robert McConkie,

and Mr. Phillip Moore, City of Alma, City Manager.

5.1.3 REGULATORY

Because this project does not involve remedial activities for cleanup of soil/groundwater, typical USEPA

procedures for implementation of the project will not apply. The work to be implemented is for municipal

water supply construction, and will be conducted under the requirements of the Michigan Safe Drinking

Water Act 1976 PA 399 for the water system components, and under the Michigan Building Code for

buildings and structures. MDEQ will have primary authority for the approval of permits associated with the

requirements of PA 399, including the wells, water mains, water withdrawal (if applicable), treatment

plant, and booster stations. The local authority having jurisdiction for building, electrical, and mechanical

permits will be involved in issuing those respective permits and any required inspections related to

their approvals of constructed systems. Key personnel for the MDEQ will be Mr. Mark Joseph and

Mr. Scott Cornelius.

It is anticipated that the USEPA will be involved as it relates to the distribution of the funds as stipulated in

the Settlement Agreement. This includes approval of this document, review of design, construction, and

closeout of project components completed with USEPA funding. Key personnel for the USEPA will

include Mr. Thomas Alcamo of the USEPA, and Mr. Tony Myers and Mr. Theo VanWolmanick of

CH2MHill, representing USEPA.


5.1.4 ENGINEER

The Engineer for the City/Authority will be responsible for professional services related to the

implementation of the water system. The Engineer will work with the City and Water Authority to ensure

that the project components will meet all regulatory requirements and fulfill the obligations of the City

regarding the Settlement Agreement. The Engineer will complete the design work for the water system

components, develop bidding documents, and provide contract administration, and construction

inspection services as the Owner representative. The Engineer will answer directly to the City and/or

Water Authority. FTC&H is the Engineer for the City/Authority. The primary contacts for FTC&H will be

Mr. Tim McNamara, P.E. who will serve as Principal-In-Charge, and Mr. John Willemin, P.E., who will

serve as Project Manager.

5.1.5 CONTRACTORS

The work will be bid under several contracts. The prime Contractor for each respective project component

will be determined through the bidding process, and identified at a later date.

5.2 PROJECT COMMUNICATIONS

5.2.1 WRITTEN CORRESPONDENCE

The primary means of project communications will be by USPS/FedEx and email correspondence

between the key personnel involved in specific tasks.

5.2.2 PROJECT MEETINGS

Project meetings will be held monthly, or more frequently (on an as-needed basis), to relay information

between the project stakeholders, exchange review comments on the various submittals, discuss

progress or issues, establish schedules for the various milestones, etc. Meeting location will be

determined when the specific meeting is scheduled. Project meetings may be conducted face-to-face or

by conference call depending on the nature of the meeting, the topics to be discussed, and the availability

of the participants.

5.2.3 QUARTERLY PROGRESS REPORTS

Quarterly progress reports will be prepared by the Consultant Team in conjunction with the City, for the

purpose of informing the interested parties of the Settlement Agreement with a status of completion of the

remedy. The quarterly reports will include, at a minimum, a written description of the tasks completed to

date, tasks anticipated over the next reporting period, and a schedule update.


5.2.4 IMPROVEMENT DESIGN REPORTS AND PERMITS

The issuance of Design Reports and Permits for the specific project components will be used to

document project completion milestones. Draft reports will be used to solicit comment and consent on the

project improvements to be implemented. Issuance of final reports will be completed after applicable

review comments have been addressed, and will constitute the completion of the task.

5.3 SCHEDULE

A tentative project schedule is included in Appendix 1. The project tasks and estimated completion times

are anticipated to change as project details develop. The schedule will be updated at least quarterly for

the purposes of project tracking and planning.


6.0 REFERENCES

Preliminary Investigation for Alternate Groundwater Supply, City of Saint Louis, Michigan, FTC&H,

March 17, 2006.

City of St. Louis - Preliminary Review of Hydrogeological Conditions, Northwest Portion of Pine River

Township, FTC&H, July 30, 2008.

Cities of Alma and St. Louis, Michigan, Water Supply and Treatment Study, FTC&H, February 2011.

Appendix 1

ID Task Name Duration Start Finish

1 Selection of Consultant 0 days Fri 10/19/12 Fri 10/19/12

2 Professional Services Authorization 10 days Fri 10/19/12 Thu 11/1/12

3 Water Supply - Wells and Transmission 615 days Fri 11/2/12 Thu 3/12/15

4 Hydrogeo Investigation/Wells 195 days Fri 11/2/12 Thu 8/1/13

5 Review Potential Well Sites 15 days Fri 11/2/12 Thu 11/22/12

6 Specifications and Bidding for Test Borings/5" Test Wells 10 days Fri 11/23/12 Thu 12/6/12

7 Conduct Test Borings, 5" wells, sampling 30 days Fri 12/7/12 Thu 1/17/13

8 Adverse Resource Impact (ARI) Evaluation 5 days Fri 1/18/13 Thu 1/24/13

9 Negotiate Land Sale Terms Contingent on Site Verification 30 days Fri 1/25/13 Thu 3/7/13

10 Specifications and Bidding for Test/Production Wells 10 days Fri 1/25/13 Thu 2/7/13

11 MDEQ Review and Site Visit 20 days Fri 1/25/13 Thu 2/21/13

12 Install Test Prod. Wells and Conduct Drawdown Testing 20 days Fri 2/22/13 Thu 3/21/13

13 Water Supply Basis of Design 5 days Fri 3/22/13 Thu 3/28/13

14 Aquifer Test Report 20 days Fri 3/29/13 Thu 4/25/13

15 Regulatory Review and Permitting 20 days Fri 4/26/13 Thu 5/23/13

16 Property Acquisition 50 days Fri 4/26/13 Thu 7/4/13

17 Appraisals 10 days Fri 4/26/13 Thu 5/9/13

18 Boundary Surveys, Easements 30 days Fri 4/26/13 Thu 6/6/13

19 Env. Assessments, etc 30 days Fri 4/26/13 Thu 6/6/13

20 Real Estate Closing 20 days Fri 6/7/13 Thu 7/4/13

21 Install Production Wells 20 days Fri 7/5/13 Thu 8/1/13

22 Well Houses 420 days Fri 8/2/13 Thu 3/12/15

23 Preliminary Design 80 days Fri 8/2/13 Thu 11/21/13

24 Site Topographical Survey - Well Houses 15 days Fri 8/2/13 Thu 8/22/13

25 Geotechnical Evaluation - Well Houses 15 days Fri 8/23/13 Thu 9/12/13

26 Preliminary Design, Report, and Drawings - Well Houses 40 days Fri 9/13/13 Thu 11/7/13

27 Review and Approvals (30% Design) 10 days Fri 11/8/13 Thu 11/21/13

28 Final Design 90 days Fri 11/22/13 Thu 3/27/14

29 50% Design Submittal 20 days Fri 11/22/13 Thu 12/19/13




33 Completion of Bidding Documents 10 days Fri 2/14/14 Thu 2/27/14

34 Permitting/Approvals 20 days Fri 2/28/14 Thu 3/27/14

Selection of Consultant

Professional Services Authorization

Water Supply - Wells and Transmission

Hydrogeo Investigation/Wells

Review Potential Well Sites

Specifications and Bidding for Test Borings/5" Test Wells

Conduct Test Borings, 5" wells, sampling

Adverse Resource Impact (ARI) Evaluation

Negotiate Land Sale Terms Contingent on Site Verification

Specifications and Bidding for Test/Production Wells

MDEQ Review and Site Visit

Install Test Prod. Wells and Conduct Drawdown Testing

Water Supply Basis of Design

Aquifer Test Report

Regulatory Review and Permitting

Property Acquisition

Appraisals

Boundary Surveys, Easements

Env. Assessments, etc

Real Estate Closing

Install Production Wells

Well Houses

Preliminary Design

Site Topographical Survey - Well Houses

Geotechnical Evaluation - Well Houses

Preliminary Design, Report, and Drawings - Well Houses

Review and Approvals (30% Design)

Final Design

50% Design Submittal




Completion of Bidding Documents

Permitting/Approvals

Jul AugSepOctNovDecJanFebMarAprMayJun Jul AugSepOctNovDecJanFebMarAprMayJun Jul AugSepOctNovDecJanFebMarAprMayJun Jul AugSepOctNovDecJanFebMarAprMayJun Jul AugS2013 2014 2015 2016

Task

Split

Milestone

Summary

Project Summary

External Tasks

External Milestone

Inactive Task

Inactive Milestone

Inactive Summary

Manual Task

Duration-only

Manual Summary Rollup

Manual Summary

Start-only

Finish-only

Progress

Deadline

Page 1

Project: Gratiot Water Authority 1010_2Date: Fri 10/12/12


35 Bidding 40 days Fri 3/28/14 Thu 5/22/14

36 Out for Bids 20 days Fri 3/28/14 Thu 4/24/14

37 Bid Evaluation 5 days Fri 4/25/14 Thu 5/1/14

38 Bid Approval/Notice of Award 15 days Fri 5/2/14 Thu 5/22/14

39 Construction 210 days Fri 5/23/14 Thu 3/12/15

40 Contract Execution/Notice to Proceed 20 days Fri 5/23/14 Thu 6/19/14


42 Startup/Commissioning 10 days Fri 1/30/15 Thu 2/12/15

43 Project Closeout 20 days Fri 2/13/15 Thu 3/12/15

44 Raw Water Transmission 415 days Fri 8/2/13 Thu 3/5/15


46 Transmission Route Survey 20 days Fri 8/2/13 Thu 8/29/13

47 Topographic Survey of Transmission Route 20 days Fri 8/30/13 Thu 9/26/13

48 Geotechnical Evaluation - Transmission 20 days Fri 9/27/13 Thu 10/24/13

49 Hydraulic Modeling to Verify Main Sizing 5 days Fri 8/30/13 Thu 9/5/13

50 Preliminary design of Transmission Piping/Routing 60 days Fri 10/25/13 Thu 1/16/14

51 Identification of Easements/ROW 14 days Fri 9/20/13 Wed 10/9/13

52 Identification of Installation Options - Transmission 30 days Fri 10/11/13 Thu 11/21/13
















68 Testing/Final Restoration 10 days Fri 1/30/15 Thu 2/12/15

Bidding

Out for Bids

Bid Evaluation

Bid Approval/Notice of Award

Construction

Contract Execution/Notice to Proceed

Construction

Startup/Commissioning

Project Closeout

Raw Water Transmission

Preliminary Design

Transmission Route Survey

Topographic Survey of Transmission Route

Geotechnical Evaluation - Transmission

Hydraulic Modeling to Verify Main Sizing

Preliminary design of Transmission Piping/Routing

Identification of Easements/ROW

Identification of Installation Options - Transmission


Final Design







Bidding

Out for Bids

Bid Evaluation


Construction


Construction

Testing/Final Restoration


Task

Split

Milestone

Summary

Project Summary

External Tasks

External Milestone

Inactive Task

Inactive Milestone

Inactive Summary

Manual Task

Duration-only


Manual Summary

Start-only

Finish-only

Progress

Deadline

Page 2




70 Water Treatment Plant Improvements 775 days Fri 11/2/12 Thu 10/22/15

71 Capacity Analysis to Verify Design Condition 20 days Fri 11/2/12 Thu 11/29/12


73 Facilities Assessment and Report - WTP 30 days Fri 11/30/12 Thu 1/10/13

74 Facilities Assessment Review and Approval 20 days Fri 1/11/13 Thu 2/7/13

75 Site Topographical Survey - WTP 10 days Fri 1/11/13 Thu 1/24/13

76 Initial Layouts and Tank Sizing 40 days Fri 1/11/13 Thu 3/7/13

77 Geotechnical Evaluation - WTP 15 days Fri 3/8/13 Thu 3/28/13

78 Preliminary Drawings 10 days Fri 3/8/13 Thu 3/21/13

79 Preliminary Design Report and Drawings 10 days Fri 3/22/13 Thu 4/4/13

80 Review and Approval (30% Design) 20 days Fri 4/5/13 Thu 5/2/13







87 Permitting/Approval 20 days Fri 8/30/13 Thu 9/26/13










97 Finished Water Transmission/Storage 615 days Fri 11/30/12 Thu 4/9/15

98 Hydraulic Analyses to Verify Need for Booster Pumping 20 days Fri 11/30/12 Thu 12/27/12

99 Technical Memo Summarizing Hydraulic Analysis 5 days Fri 12/28/12 Thu 1/3/13

100 Review and Approval of Hydraulic Analysis 20 days Fri 1/4/13 Thu 1/31/13


102 Transmission Route Survey 20 days Fri 2/1/13 Thu 2/28/13

Project Closeout

Water Treatment Plant Improvement

Capacity Analysis to Verify Design Condition

Preliminary Design

Facilities Assessment and Report - WTP

Facilities Assessment Review and Approval

Site Topographical Survey - WTP

Initial Layouts and Tank Sizing

Geotechnical Evaluation - WTP

Preliminary Drawings

Preliminary Design Report and Drawings

Review and Approval (30% Design)

Final Design






Permitting/Approval

Bidding

Out for Bids

Bid Evaluation


Construction


Construction


Project Closeout

Finished Water Transmission/Storage

Hydraulic Analyses to Verify Need for Booster Pumping

Technical Memo Summarizing Hydraulic Analysis

Review and Approval of Hydraulic Analysis

Preliminary Design

Transmission Route Survey


Task

Split

Milestone

Summary

Project Summary

External Tasks

External Milestone

Inactive Task

Inactive Milestone

Inactive Summary

Manual Task

Duration-only


Manual Summary

Start-only

Finish-only

Progress

Deadline

Page 3



103 Topographic Survey of Transmission Route 20 days Fri 3/1/13 Thu 3/28/13

104 Geotechnical Evaluation - Transmission 15 days Fri 3/29/13 Thu 4/18/13

105 Preliminary Design of Transmission Piping/Routing 40 days Fri 3/29/13 Thu 5/23/13

106 Identification of Easements/ROW 14 days Fri 4/12/13 Wed 5/1/13

107 Identification of Installation Options - Transmission 30 days Fri 4/12/13 Thu 5/23/13

108 Transmission Review and Approvals (30% Design) 20 days Fri 5/24/13 Thu 6/20/13

109 Identification of Sites - Booster Stations 20 days Fri 3/1/13 Thu 3/28/13

110 Property Acquisition - Booster Stations 60 days Fri 3/29/13 Thu 6/20/13

111 Preliminary Design, Report, and Drawings - Booster Stations 20 days Fri 6/21/13 Thu 7/18/13

112 Booster Review and Approvals (30% Design) 20 days Fri 7/19/13 Thu 8/15/13

113 Identification of Sites - Storage Tank 20 days Fri 3/1/13 Thu 3/28/13

114 Property Acquisition - Storage Tank 60 days Fri 3/29/13 Thu 6/20/13

115 Preliminary Design, Report, and Drawings - Storage Tank 20 days Fri 6/21/13 Thu 7/18/13

116 Storage Tank Review and Approvals (30% Design) 20 days Fri 7/19/13 Thu 8/15/13













129 Transmission Main Construction 195 days Fri 2/14/14 Thu 11/13/14


131 Construction - additional duration for winter 150 days Fri 3/14/14 Thu 10/9/14

132 Testing/Final Restoration 10 days Fri 10/10/14 Thu 10/23/14


134 Booster Station Construction 245 days Fri 2/14/14 Thu 1/22/15



Topographic Survey of Transmission Route

Geotechnical Evaluation - Transmission

Preliminary Design of Transmission Piping/Routing

Identification of Easements/ROW

Identification of Installation Options - Transmission

Transmission Review and Approvals (30% Design)

Identification of Sites - Booster Stations

Property Acquisition - Booster Stations

Preliminary Design, Report, and Drawings - Booster Stations

Booster Review and Approvals (30% Design)

Identification of Sites - Storage Tank

Property Acquisition - Storage Tank

Preliminary Design, Report, and Drawings - Storage Tank

Storage Tank Review and Approvals (30% Design)

Final Design







Bidding

Out for Bids

Bid Evaluation


Construction

Transmission Main Construction


Construction - additional duration for winter

Testing/Final Restoration

Project Closeout

Booster Station Construction




Task

Split

Milestone

Summary

Project Summary

External Tasks

External Milestone

Inactive Task

Inactive Milestone

Inactive Summary

Manual Task

Duration-only


Manual Summary

Start-only

Finish-only

Progress

Deadline

Page 4





139 Storage Tank Construction 300 days Fri 2/14/14 Thu 4/9/15



142 Testing/Startup 10 days Fri 3/13/15 Thu 3/26/15


144 Decommission Existing Wells 15 days Fri 9/25/15 Thu 10/15/15

145 Complete 0 days Thu 10/15/15 Thu 10/15/15


Project Closeout

Storage Tank Construction



Testing/Startup

Project Closeout

Decommission Existing Wells

Complete


Task

Split

Milestone

Summary

Project Summary

External Tasks

External Milestone

Inactive Task

Inactive Milestone

Inactive Summary

Manual Task

Duration-only


Manual Summary

Start-only

Finish-only

Progress

Deadline

Page 5
