Coppell Starleaf BGE Attachment A 7-17-2015 FINALATTACHMENT A
Scope for Engineering Services Agreement for the Coppell Starleaf Pump Station Study
STARLEAF PUMP STATION STUDY
The scope set forth herein defines the work to be performed by the ENGINEER in completing the project. Both the CITY and ENGINEER have attempted to clearly define the work to be performed
and address the needs of the Project.
WORK TO BE PERFORMED
BASIC SERVICES
Task 1. Site Study
Task 2. Hydraulic Study
Task 3. Pump Type Selection
Task 4. SCADA and Communications Study
Task 5. Preliminary Site Layout
SPECIAL SERVICES
Task 6. Wholesale Water Contracts
BASIC SERVICES
Task 1. SITE STUDY Lump Sum
ENGINEER will perform the following:
Site visit and investigation. This will include verification of existing infrastructure and utilities, a visit to surrounding area for architectural considerations, and a visit to both
the existing pump station and control room and the Starleaf site as it relates to SCADA communications.
Topographical and boundary survey to confirm site property line, easements, and rights-of-way, as well as contours, elevation, existing infrastructure such as manholes, valves signage,
etc. This will include both sides of Starleaf Drive and limits of roadway and sidewalk pavement
Review of US Army Corps of Engineers inundation map, and asses potential flooding impact to site
Geotechnical site assessment based on existing soil borings in area performed by Reed Engineering Group
Property ownership verification of adjacent properties
Research and review of development standards and their impact on architectural design
ASSUMPTIONS
The proposed site on Starleaf Drive is not to change, but may require expansion
DELIVERABLES
Technical memo with recommendations
Site exhibits
Task 2. HYDRAULIC STUDY Lump Sum
ENGINEER will perform the following:
Review of distribution system map, existing water system model, and City water usage
Determine Average Day, Peak Day and Peak Hour demand
Determine proposed take volumes for DWU and IWU wholesale agreements
Determine ultimate pump station and tank sizing
Determine feasibility of pump station to direct flow toward west Coppell
Import and review existing water model
Update and load any new or revised data
Develop, run and verify alternative scenarios
Determine and analyze take point pressure ranges
ASSUMPTIONS
The CITY is to provide ENGINEER with existing water model data.
DELIVERABLES
Technical Memo with exhibits of options and related costs
Workshop to view model runs (One workshop with additional to be hourly)
Task 3. PUMP TYPE SELECTION. Lump Sum
ENGINEER will perform the following:
Based on the tasks above, explore the following pump types for the proposed pump station and make recommendations to City staff
Vertical Turbine
Horizontal Split Case
Analysis to include building size, site layout requirements, depth of structure, energy usage, maintenance and other factors
Analysis of life cycle cost of constant speed pumps versus variable speed pumps
DELIVERABLES
Workshop to explore alternatives (One workshop with additional to be hourly)
Task 4. SCADA AND COMMUNICATIONS Lump Sum
ENGINEER will perform the following:
Preliminary investigation of using City owned fiber optic cabling for communications with the new pump station.
Preliminary radio path studies, if necessary, to determine initial antenna tower height requirements
Development of two different options for each of the following: PLC hardware, graphical user interface (GUI), and remote communications
City staff interviews. This will identify levels of experience and capability for maintaining the SCADA system hardware and software
ASSUMPTIONS
The Starleaf Drive Pump Station will communicate with the existing pump station. This may be done with the existing City owned fiber optic cable network, a new radio link, or possibly
some combination of both for redundancy purposes.
DELIVERABLES
Technical Memo with recommendations that outlines the results of the various design options. (See Task 5)
Task 5. PRELIMINARY SITE LAYOUT. Lump Sum
Generate up to 3 site layout options,
Develop program of spaces to be used in design development (Phase 2) and to aid in site layout options. Develop building size and interior requirements from architectural space programming
that includes pump type, electrical equipment, motor control room, office spaces, SCADA control room, and other desired uses
Radio tower height and location, if necessary
Emergency generator, if necessary
Vehicle refueling station
Existing geotechnical borings from surrounding area
Tank diameter per height determined in Task 2
Vehicle access, construction and future maintenance access
Phasing of facility to accommodate City budgeting if necessary
Opinion of Probable Construction Cost
Draft Study Report
Present options to City Staff in workshop
DELIVERABLES
Site layout exhibits with accompanying technical memos as appropriate
Layout and design workshop
Development Advisory Committee meeting, and incorporation of comments
Final Study Report that will include technical memos, site plan exhibits, decisions made and general approach to design of facility
SPECIAL SERVICES
Task 6. WHOLESALE WATER CONTRACTS Hourly Not-to-Exceed
ENGINEER will perform the following:
Review of Dallas Water Utilities (DWU) and City of Irving (IWU) wholesale treated water contracts
Contact DWU and IWU to open discussion and determine status of Dallas and Irving transmission main interconnect
Make recommendations and assist in setting parameters for revision to DWU contract, and for new IWU contract
Facilitate and moderate meetings between
DWU and City staff
City of Irving and City staff
FEE SCHEDULE
BASIC SERVICES
Task 1. Site Study $ 21,800
Task 2. Hydraulic Study $ 55,000
Task 3. Pump Type Selection $ 31,700
Task 4: SCADA and Communications Study $ 18,000
Task 5. Preliminary Site Layout $ 81,200
TOTAL BASIC SERVICES $ 207,700
SPECIAL SERVICES
Task 6. Wholesale Water Contracts $ 25,000
TOTAL $ 232,700
Upcoming Phases:
Phase 2: Facility Design
Geotechnical Investigation
Preliminary Engineering Report (Phase 1 study as draft)
Pump Station, Tank & System Valves
Electrical Distribution and Control Design
SCADA Design
Platting
Planning & Zoning and City Council Approval
Phase 3: Construction Phase
Advertisement & Bidding
Construction Administration
Construction Inspections
Phase 4: Commissioning
Startup & Training
O&M Manuals
Record Drawings