HomeMy WebLinkAboutMINUTES - 10191993 - 1.24 0 _
TO: BOARD OF SUPERVISORS
FROM: J. MICHAEL WALFORD, PUBLIC WORKS DIRECTOR
DATE: October 19, 1993
SUBJECT: Approve Contract Change Order No. 3 to AIP 3-06-0050-07 for Tracor Applied Sciences,
Inc. for Airport Noise Monitoring System, Phase II at Buchanan Field Airport, Concord
Area
SPECIFIC REQUEST(S) OR RECOMMENDATION(S) &BACKGROUND AND JUSTIFICATION
I. Recommended Action:
APPROVE contract Change Order No.3 for Tracor Applied Sciences, Inc. and Auth6rize the Public
Works Director or his designee to sign the contract Change Order. This change order relates to
Noise Monitoring Site No. 1 on the golf course which required some 600 feet of additional
trenching and conduit and related installation work beyond the contract requirement of 100 feet
for such work at Noise Monitoring sites.
II. Financial Impact
This Change Order requires an adjustment of $13,483 which consists of the subcontractor;'s work
in the amount of$11,402 plus Tracor's loading of 18.25 percent. 90% of the project will be funded
by the Federal. Aviation Administration. The local 10% share will be paid out of the Airport
Enterprise Fund.
III. Reasons for Recommendations and Background:
The demonstration and acceptance test for the airport Noise Monitoring System (NMS) was
completed on July 2, 1993, without NMS site #1 operation. At the time of installation, access to
NMS #1 was not possible due to golf course construction. This site required some 600 feet of
additional trenching, conduit and related installation work beyond the contract requirement of 100
feet of work at the NMS site. NMS #1 was fully operational and accepted as of September 30,
1993.
Continued on Attachment: SIGNATURE:
19argmegs=—109!f
—RECOMMENDATION OF COUNTY ADMINISTRATOR RECOMMENDATION OF-BOr COMMITTEE
APPROVE _OTHER
SIGNATURE(S):
ACTION OF BOARD ON q f 3 APPROVED AS RECOMMENDED�_OTHER
VOTE OF SUPERVISORS
UNANIMOUS (ABSENT )
AYES: NOES:
ABSENT: ABSTAIN: i ii reby certify that this is a true and correct copy of
an action taken and entered on the minutes of the
JMW:TW:rs Board of Superviso�on the date shown.
c:19.t 10 ATTESTED: !' �' u /z l 9 -3 —
PHIL BATCHELOR,Clerk of the Board
Orig Div: Airport - Contact T. Williams (510) 646-5722 of Supervisor;and County Administrator
cc: County Administrator
Public Works Director Sj - -- ,Deputy
Public Works Accounting
Auditor/Controller
Aviation Advisory Committee (Via Wiv6r)
Federal Aviation Administration iv,a
Tracor Applied Sciences (vii
TRACOR Tracor Applied Sciences, Inc.
6500 Tracor Lane
Austin,TX 78725-2050
512 926-2800
September 23, 1993
HCM-93-070
Tracy Williams, Assistant Manager
Contra Costa County Airports
510 Sally Ride Drive
Concord, CA 94520-5550
Subject: Proposed Change Order No. 3 to AIP Project 3-06-0050-07
Airport Noise Monitoring System P4A',C- IT-
Dear Ms. Williams:
As you know, NMS Site 1 on the Golf Course required some 600 feet of additional
trenching and conduit and related installation work beyond the contract requirement of
100 feet for such work at NMS sites. The price for the additional work is $13,483
which consists of the subcontractor's work in the amount of $11,402 (per his invoice
attached) plus Tracor's loading of 18.25 percent.
If you concur in the above, please indicate County approval in the space provided
below and return an original to me for our files.
Sincerely yours,
TRACOR APPLIED SCIENCES, INC. CONTRA COSTA COUNTY
By: CJ . By:
Harold C. Malloy J. Michael Walford
Contracts Department Public Works Director