HomeMy WebLinkAboutTask Order No. 2.2 with CH2M HILL, Inc. for Design Ferric Chloride Feed Facilities
TASK ORDER N0.2.2
UNDER THE
MASTER AGREEMENT FOR PROFESSIONAL SERVICES
BETWEEN
CITY OF MERIDIAN AND CH2M HILL, INC.
This Task order is entered into by and between City of MERIDIAN (OWNER) and CH2M HILL, Inc.
(ENGINEER), according to the terms and conditions of the Master Agreement (AGREEMENT) for
Professional Services, dated January 1, 2007.
See Attachment A for the Scope and Fee for Task 2.2.
All other terms and conditions of the original agreement will remain in full force and effect.
IN WITNESS WHEREOF, the parties execute below:
For CH2M HILL, Inc.
dated this ~ day of , 2007.
By: ~
Name Title
For City of Meridian
dated this da of ~r'Q'~'~-' , 2U0?, _ ,,
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By:
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Attest: i " "~ " "' r
William G. Berg, Jr. City Cler ' .: ,:~-' ;~'_ "
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Approved By City Council: :"~~o.c~ ~ ~'c-~~'~.'~~'~"~+e~'f ,'~,~~`
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Attachment Q
Scope of Services
Project Understanding
The Plant Optimization effort identified Chemically Enhanced Primary Treatment (CEPT) as
a project the City of Meridian wanted to move forward on early. Ferric Chloride would be
fed into the influent junction box upstream of the influent screens by flow-paced, metering
pumps housed in a small storage shed. Secondary containment pallets will be provided
under the pumps. Dosage rates would be determined by jar testing. A top entry mixer or
mixing pump will be provided in the influent junction box to flash mix the solution. The
chemical will be stored in a 5,000 gallon insulated, double-walled, cross-linked polyethylene
tank on a concrete pad.
The project will be constructed as a change order to an existing construction contract.
Deliverables will be a change order package and not public bid documents.
Scope of Work
CH2M HILL will perform the tasks for design of the Ferric Chloride feed facilities as
outlined below.
Task 1-Project Management
Project management includes project scoping, staff management, task coordination,
monitoring project progress, preparing invoices, and ensuring project quality control..
Task 2--Preliminary Design
CH2M HILL will perform jar testing on-site to determine the optimum chemical dosage. A
five paddle stirrer will be rented locally for one day and jar testing will occur in the City's
laboratory.
A brief engineering report will be submitted to IDEQ which includes the results of the jar
testing, a discussion of the effects on the biosolids system such as additional phosphorus
loading and biosolids generationin.
Task 3--Design
3.1 Equipment Sizing and Selection
The flash mixing equipment and chemical feed pumps will be sized and selected based on
the results of the jar testing.
3.2 Prepare Plans and Specifications
Plans will be produced to allow the Contractor to price the work. Equipment specifications
tiTill be noted on the drawings. The following is the anticipated list of dra~~ings:
• Site Plan/Yard Piping
• Section and Details
• Structural Notes, and Details
• Electrical Schedules & Diagrams
3.3 Project Review Meetings
Four copies of 90% complete project documents will be provided for City review anti
comment. City Comments will be incorporated into the final documents.
3.4 Cost Estimates
Updated cost estimates will be provided with the drawing submittal
Attachment B
Compensation
Level of Effort
The task level of effort estimates are summarized in the following table. CH2M HILL has
developed this level of effort estimate based on the work plan presented herein and
assumptions stated previously. The fees will be billed as time and material, and will not
exceed the total amount below without prior approval by the City.
t.evel of Effort
Task Description Total Task
1 Project Management $1702
2 Preliminary Design $4073
3 Final Design $13374
Summary -All Tasks $19,149
Schedule
The schedule is listed below:
• 90% design - 4 weeks after NTP
• Final Documents will take 1 week after receipt of City comments