1993-1432517L/1589
N0. 3
AN ORDINANCE AUTHORIZING THE EXECUTION OF A CHANGE ORDER TO A
CONTRACT BETWEEN THE CITY OF DENTON AND GRACON CONSTRUCTION COMPANY ;
PROVIDING FOR AN INCREASE IN THE CONTRACT PRICE; AND PROVIDING AN
EFFECTIVE DATE.
WHEREAS, on JULY 21, 1992 , the City awarded a contract for
the construction of certain improvements to GRACON CONSTRUCTION COMPANY
in the amount o 8,647,000.00 ; an
WHEREAS, the City Manager having recommended to the Council
that a change order be authorized to amend such contract with
respect to the scope and price and said change order being in
compliance with the requirements of Chapter 252 of the Local
Government Code; NOW, THEREFORE,
BE IT ORDAINED BY THE COUNCIL OF THE CITY OF DENTON:
SECTION I. That the change order to the contract between the
City and GRACON CONSTRUCTION COMPANY , a copy of which is
attached hereto, in the amount o ONE HUNDRED TWO THOUSAND AND 00/1.002
Dollars 102,000.00 is
hereby approve an the expenditure of funds therefor s ereby
authorized.
SECTION II. That this ordinance shall become effective
immediately upon its passage and appro al.
PASSED AND APPROVED this the ;Fday of 1993.
BOB CASTLEBERRY,
ATTEST:
t`D AS TO LEGAL FORM:
ADAMI DRAYOVITCH, CITY ATTORNEY
BY: '/✓yi~ ~c.1-Gi -
DATE: August 17, 1993
CITY COUNCIL REPORT
TO: Mayor and Members of the City Council
FROM: Lloyd V. Harrell, City Manager
SUBJECT: PURCHASE ORDER #26052A - GRACON CONSTRUCTION CO.
WASTEWATER TREATMENT PLANT IMPROVEMENTS CHANGE
ORDER #9
RECOMMENDATION: We recommend change order #9 in the amount of $102,000.00
to Gracon Construction Co. for the Wastewater Treatment Plant Improvements be
approved. Public Utility Board recommends approval.
SUMMARY: This change order will provide for the repainting of all existing ferrous
metal surfaces at the Wastewater Treatment Plant; plus a small amount of concrete
at the two (2) digesters.
BACKGROUND: Memorandum date August 17, 1993; change order documents.
PROGRAMS, DEPARTMENTS OR GROUPS AFFECTED: Pecan Creek Wastewater
Treatment Plant, Gracon Construction Co.
FISCAL IMPACT: Funds for this change order will come from Utility Revenue Bonds
for Wastewater Treatment Plant Improvements account #674-082-RB93-U102-9101.
Respe~tfu subm' .
Lloyd V. Harre
City Manager
A roved:
Name: Tom D. Shaw, C.P.M.
Title: Purchasing Agent
402.DOC
07.30/93
11:58 128173837334 UTILITIES DAVE RAN 0001,'007
August 17, 1993
CITY COUNCIL AGENDA ITEM
TO:
FROM:
Mayor and Members of the City Council
R.E. Nelson, Executive Director of Utilities
9UBJ': Consider change
$102,000.00 to
the wastewater
for Repainting
Components
RECOMMENDATIONS:
Order No. 9 in the Amount of
Gracon Constraction Company for
Treatment Plant Improvements Contract
Existing Metal and Concrete Structural
The Public Utility Board recommends that the city council approve
Change order No. 9 for $102,000.00.
SUMMARY
This Change Order will provide for the repainting of all existing
ferrous metal surfaces at the wastewater Treatment Plant; plus a
small amount of concrete at the two (2) Digesters.
BACXGROUND:
During the early months of project review, it was the design
intent to repaint all exposed metal surfaces of the existing
wastewater Treatment Plant. In addition, there was a small
amount of concrete surfaces at the two Digesters which needed
painting, in anticipation, of a cost overrun before bidding this
project, the repainting was eliminated in order to stay within a
project budget of $11,000,000. Subsequently the project came in
at a low bid of $8,647,000; far below the Engineer's and Budget
Estimate.
The problem still existing is the corrosion of numerous exposed
metal surfaces and the discoloration of some concrete at the two
Digesters where sludge has etched the concrete.
The existing paint is severely deteriorated and is no longer
capable of adequately protecting the ferrous metal surfaces from
the destructive effects of oxidation. with proper maintenance, a
new coat of paint could provide protection for another ten years
and possibly more.
9T,30/93 11:50 '8'8173857954 UTILITIES 444 DAVE HANK
X002/007
PROGRAMS, CsROUPS, AND DEPARTMENTS AFFECTED:
Citizens of Denton, Denton '.Municipal Utilities and Gracon
Construction Company.
FINANCIAL StTMMARY:
Alan Plummer and Associates Engineer's Estimate
Original Contract Amount (Gracon Construction Co.)
New Increase Decrease in Contract Amounts.,
Previous Change Order No. 1 e$ 6,125.00>
Previous Change Order No. 2 9,640,97>
Previous Change Order No. 3 $ 2,982.00
Previous Change Order No. 4 4,95C.83>
Previous Change Order No. 5 $71,187.00
Previous Change Order No. 6 $ 9,98C.00
Previous Change Order No. 7 $ 6,196.00
Previous Change Order No. 8 $34,424.00
This Change Order No. 9 $102,000.00
Total of Change Orders
Revised Contract Amount
Net Change in Contract Time
$11,000,000
$8,647,000
$206,052.20
$8,853,052.20
0 Calendar Days
Revised Contract Completion Time 730 Calendar Days
Percent Change Orders per original Contract Amount 2.380
of 22.95 08:24 =8i73837334
Prepared by:
C. David Ham, P.E.,
Manager of Construction Projects
Approved by:
Lee Allison, P.E., Director Water
Engineering and Operations
Exhibit I: Change Order No. 9
Exhibit II: Backup Data
L71L111LS Ltltt IlAffi wUVJ UU.
Respectfully Submitted,
R. E. Nelson, Executive Director
Department of Utilities
2CM115.wp
CHANGE ORDER [CO]
Page 1 of 3
PROJECT: Pecan Creek WWTP Improvements PROJECT NUMBERS
OWNER: CITY OF DENTON, TMM$ Owner:II-102 (City)
3=XNEER: Alan Plummer and Associates Inc. Yagineer:4 7-0425 WAX)
CONTRACTOR: Gracon_Construction Owmaav Contractor: 9203
CAAYOZ ORDER: 09 Date: 7/30/93
The compensation agreed upon in this Change order is a full, complete and
final payment for all costs the Contractor incurs as a result of or relating
to this change, whether said costs are known, unknown, foreseen or
unforeseen at this time, including without limitation, any costs for delay,
extended overhand, ripple or impact cost, or any other effect an changed or
unchanged work as a result of this change.
C GE ORDER WORK TO a PERFORMED
Pre
.Maned ContrALAt
Ngdifica inn Time Extension/Days Amount
1. REFERENCE am 291
This Contract Modification Request
provides for the repainting of all
esterior ferrous metal surfaces on
Plant such as equipment, handrails,
valve operators, pipes, *to. and
small amount of Digester concrete 0 $102,000
TOTAL 0 Calendar Days $102,000
Exhibit T
CHANGE ORDER [CO]
Alan Plummer and Associates Engineer'C Hstimate
Original Contract Amount (Gracon Construction Co.)
Now increase or Decrease in Contract Amounts:
Previous Change Order No. 1 6,125.00>
Previous Change Order No. 2 9,640.97>
Previous Change Order No. 3 $ 2,952.00
Previous Change Order No. 4 4,950.83>
Previous Change order go. 5 $71,167.00
Previous change order No. 6 $ 9,950.00
Previous Change order go. 7 $ 6,196.00
Previous Change Order No. 8 $34,424.00
This Change Order No, 9 $102,000.00
Total of Change Orders
Revised Contract Amount
Net Change in Contract Time
Revised Contract Completion Time
Percent Change Orders per Original Contract Amount
ATTACHED: Clot 29
Distribution:
457-0425 D.22
437-0420 D.22
Joe Graves Oracon Construction
Ron Janson Gracon Construction
Jennifer Walters, City Secretary
2 page of 3
$11,000,000
$8,647,000
$206,052.20
$8,853,032.20
0 Calendar Days
730 Calendar Days
2.38%
Dave Ham City of Denton
Purchasing City of Denton
Finance City of Denton
R. E. Nelson City of Denton
Lee Allison City of Denton
From; 8173879844 at 0817-383-7158
To: CAU(D HAN at 09-387-9844
0f-0-7J 0-1.41 PA
ee3 of ee3
CHARM ORDER [CO] 3 Page of 3
Recomended by
Consulting Qnginesri Approved Contr for
>sy
for Alan P ut®er for 3raoa~06asiructiasl Inc.
and Associates, Ina.
Date1 ~~~~j DateI &i
Approved by Manager of Construction Projects:
for City of Denton, Texas
Approved by Purchasing Agent
c"
for City of Denton, T
ApprovedDireotor of !later EaginseringWeber Eaginsering and oparations
BY 180 - $6,0001
for Ciy of Denton, Texas
Approved by mmecutive Director of Dtilitiee
($6,001 - $14,999)
for City of Denton, Texas
Approved by city council
Dr , city !Imager
for City of Denton, Texas ($16,000 and above)
7-5
CONTRACTOR'S MODIFICATION REQUEST [CMR]
OWNER CITY OF DENTON P OJt=CT NO.
PROJECT PECAN CREEK WW'PP IMPROVEMENTS OWNER 0102
CONTRACTOR GRACON CONSTRUCTION INC. CONTRACTOR 9203
ENGINEER . ALAN PLUMMER AND ASSOCIATES. INC. ENGINEER 457-0425
RESIDENT REPRESENTATIVE CLETE MARTIN CMR NO. NOTIFICATION BY CONTRACTOR: ~}-~N K151^~/YCy
WE ARE PROPOSING TO MAKE THE CHANGE TO THE CONTRACT DESCRIBED IN THE ATTACHED MATERIALS
AND REQUEST THAT YOU TAKE THE FOLLOWING ACTION:
❑ NOTIFY US THAT YOU CONCUR THAT THIS CHANGE DOES NOT REQUIRE A CHANCE IN CONTRACT
TIME OR AMOUNT AND ISSUE A AMD ORDER.
ISSUE A CHANGE ORDER FOR PERFORMING THE DESCRIBED CHANGE. CHANGE IN CONTRACT AMOUNT
AND TIME ARE INDICATED IN ATTACHED DETAILED COST BREAKDOWN AND RVSED SCHEDULE.
❑ ISSUE A CHANGE ORDER FOR THE DESCRIBED CHANGE WITH PAYMENT AT THE UNIT PRICE 910.
❑ AUTHORI THE CONTRACTOR TO PROC® WITH THE CHANGE UNDER THE TIME AND MATERIALS
PRO THE CONTRACT.
BY• DATE:
ENGINE'S RESPONSE:
WE RESPOND TO YOUR REQUEST AS FOLLOWS:
❑ WE CONCUR THAT THIS IS A NO COST OR TIME CHANGE. SEE ATTACHED FIELD ORDER.
OUR PROPOSAL IS RECOMMENDED TO THE OWNER. SEE ATTACHED CHANGE ORDER.
❑ PROCEED WITH THE CHANGE AT THE UNIT PRICE BID. SEE ATTA00 CHANGE ORDER.
❑ PR UN E AND MATERIALS PROVISIONS THE CONTRACT.
BY.. DATE: a
ACTION TAKEN:
❑ PROPOSED CONTRACT MODIFICATION REZCTED. CONTRACTOR NOTIFIED NOT TO PROCEED.
BY., DATE
❑ FIELD ORDER ISSUED: NO. DATE; 9Y
❑ CHANGE ORDER ISSUED: NO. ~ DATFJ Et
4F4;lrf)
~4jv~ip/cT~N r• .i /+Af o 0 010
-111Y 994;7
4p /lt 7 '00
rec.. ' /oz/ 4 9 5{
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MAILING ADDRESS: P.O. BOX 850756, MESQUITE,
ITEMS OF EXTERIOR PAINTED SURFACES
Hmzo
TEXAS 75185-0756, PRONE: (214) 222-8533
Fax: (214) 222-8342
1. Bar Screens and all painted items in that area
2. MCC at Bar Screens
3. Handrails at Raw Sewage P.S.
4. Handrails at Administration Building area
5. Handrails, door and windows at Primary Sludge P.S.
6. Primary Clarifiers (6) above water surface only
7. Handrail and Misc. Items @ Aeration Basins 1 - 7
8. Final Clarifiers (5) above water surface only
9. Thickeners (3) above water surface only
10. Filters (3) handrail, bridges and misc. painted items
11. Digesters (2) all items above the cover, excluding
cover itself, handrail, doors and windows
12. Sludge Beds, exposed piping
13. Chlorination & Dechlorination Basins, handrail, pumps
and valve operators
14. Valve Box covers (75 ea.)
15. Manhole covers (35 ea.)
16. Misc. stains, landings, handrail and valve operators
around site.
mJAL v.waw iaulwsuaj; x91 PUBJQ .31-380d