Agenda Item 8BAGENDA ITEM # 813
MARCH 12, 2012
CITY OF ATLANTIC BEACH
CITY COMMISSION MEETING
STAFF REPORT
AGENDA ITEM: Change Order #7 for TMDL WWTP #1 Improvements for Clarifier #1
Repairs
SUBMITTED BY: Donna Kaluzniak, CEP, Utility Director
DATE: March 5, 2012
BACKGROUND: The City's Wastewater Treatment Plant #1 has two existing clarifiers.
Clarifiers are large tanks that allow the microorganisms used for wastewater treatment to
separate from the clean effluent. The clarifiers contain equipment (rake -arms, stilling well, draft
tubes, etc.) to transport the microorganisms to other tanks.
Problems with deteriorated, leaking slide gates prevented staff from being able to isolate and
drain the clarifiers until those gates were replaced as part of the TMDL project. After the gates
were replaced, staff was able to isolate one of the clarifiers (Clarifier #2) and the City
Commission authorized a change order for repairs. Additional work was needed for the steel
beams supporting the Clarifier #2 walkway, as reported by the City Manager at the February 27,
2012 meeting.
Repairs on Clarifier #2 are proceeding and will be completed shortly, at which time staff will
place that tank on line and empty Clarifier #1.
Staff and engineers believe that similar repairs will be needed in Clarifier #1, along with
replacement of a broken skimmer arm. In order to minimize delay of the construction project,
staff is requesting approval of Change Order #7 for repairs on Clarifier #2 in the amount of
47,745. After sandblasting, the actual amount of steel repair will be defined and approved by the
City and Engineer.
BUDGET: Funds for the repairs are available in the contingency for the TMDL Project, which
has $110,940 remaining.
RECOMMENDATION: Authorize WPC Industrial Contractors, LLC to complete repairs to
Clarifier #1 in the amount of $47,745 as Change Order No. 7, and authorize the City Manager to
sign the Change Order.
ATTACHMENTS: 1. Change Order No. 7 with Exhibit A
REVIEWED BY CITY
AGENDA ITEM # 813
MARCH 12, 2012
WWTP# Improvements for TMDL Compliance
Contingency Budget Set Up for Misc. Items
City of Atlantic Beach, FL
Bid No. 1011 -01
CHANGE ORDER NUMBER 7
Contractor: WPC Industrial Contractors, LLC
11651 Philips HW
Jacksonville, FL 32256
(904) 268 -0099
Fax (904) 268 -2922
Engineer: J. Collins Engineering Associates, LLC
11516 -3 San Jose Blvd.
Jacksonville, Florida 32223
(904) 262-4121
(904) 2624122 FAX
Date: March 1, 2012
Owner: City of Atlantic Beach
800 Seminole Road
Atlantic Beach, FL
(904) 247 -5800
ITEM
DESCRIPTION OF CHANGE(S) Complete Scope of
Work is attached as Exhibit A
Total Cost/Price
INCREASE OR
DECREASEIN
CONTRACT
PRICE
1
Clarifier#1(WWTP #1) - Sand Blast & Paint
$ 28,025.00
$ 28,025.00
2
Allowance for Repair of Deteriorated Steel at Clarifier#1
$ 16,500.00
$ 16,500.00
3
Replace Exisitng Skimmer Arm
$ 3,220.00
$ 3,220.00
Subtotal
$ 47,745.00
CONTINGENCY AMOUNT
$ 238,140.00
PREVIOUS SPENT
$ 127,200.03
CO #7 AMOUNT
$ 47,745.00
CONTINGENCY AMOUNT REMAINING
$ 63,194.97
TOTAL DECREASE
$ -
TOTAL INCREASE
$ 47,745.00
CONTRACT PRICE PRIOR TO CHANGE ORDER
$ 5,264,000.03
CURRENT CONTRACT PRICE INCLUDING THIS CHANGE ORDER
5
CONTRACT TIME INCREASE DUE TO CHANGE ORDER
12 weeks
CONTRACT TIME DECREASE
This document shall become an amendment to the contract and all provisions of the contract will apply hereto.
Accepted by:
Contractor
Accepted by:
Engineer
Accepted by:
Owner
Date:
Date:
Date: