R-91-1561 - 2/14/1991WHEREAS, the City of Round Rock has previously entered into a
contract with Corrosion Eliminators, Inc. for the 1990 Tank
Rehabilitation Project, and
WHEREAS, it has since been determined that the ground storage
tank at the main well site is in need of painting and rehabilitation,
and
WHEREAS, Corrosion Eliminator, Inc. is willing to paint and
rehabilitate the said ground storage tank for the same unit prices as
contained in its original bid, Now Therefore
BE IT RESOLVED BY THE COUNCIL OF THE CITY OF ROUND ROCK, TEXAS,
That the Mayor is hereby authorized and directed to execute on
behalf of the City a Change Order to the contract with Corrosion
Eliminator, Inc. for the 1990 Tank Rehabilitation Project to add the
ground storage tank at the main well site.
RESOLVED this 14th day of February, 1991.
ATTEST:
RS02141G
NE LAND, City Secretary
RESOLUTION NO. 15691 1
MIKE ROBINSON, Mayor
City of Round Rock, Texas
ITEM
NO.
DESCRIPTION OF CHANGES
ADDED DAYS
CALENDAR WORKING
AMOUNT
1
Add cleaning, painting and disinfection of
tank.
-
$ 46,142.00
lA
Add welding, cutting, repairing, patching
deteriorated plate and welds $13.60 /L.F.
400 L.F.
$ 5,440.00
1B
Add shrouding system including erection,
maintenance, and dismantling of shroud.
$ 10,600.00
TOTAL
-
DEPT.; Public Work Department DATE: 2/14/91
PROJECT: 1990 Tank Rehabilitation Project CHANGE ORDER NO • 1
JUSTIFICATION:
ORIGINAL CONTRACT PRICE $ • 103,984.00 Tank repair of main well site,
PREVIOUS CHANGE ORDERS $• 0 500,000 gal Water!Storage Facility.
THIS CHANGE ORDER S. 93,436.00
CHANGE ORDERS TO DATE $• 93,436.00
PREPARED BY: Steven D. Miller, P.E. 2/14/91
ENGINEER DATE
Corrosion Eliminator, Inc.
APPROVED.
TITLE: Mayor
CONTRACTOR
CITY OF ROUND ROCK
CONTRUCTION CHANGE ORDER
CHANGE DATA
Page 1 I'f 2
PERCENT OF ORIGINAL CONTRACT PRICE
_ q 61% for tank repaint
THIS CHANGE ORDER 28% for tank repair
DATE
PREVIOUS CHANGE ORDERS.
TOTAL % CHANGE. 89%
0
Y
ORIGINAL CONTRACT PRICE
PLUS CHANGE ORDERS S. 197,420.00
a:coi
ITEM
NO.
DESCRIPTION OF CHANGES
ADDED.DAYS
CALENDAR WORKING
AMOUNT
1C
Add concrete pads including forming, batching
and placing concrete, finishing, and cleanup
@ $18.82 S.Y. - 50 S.Y.
$ 941.00
Subtotal for Tank Rehabilitation
$63,123.00
2
Add the installation of new 24" 0 overflow,
vent and 5' -0" x 9'-0" wier box complete -
in- place.
$ 1,375.00
3
Add repair of portions of tank shell and
roof plate.
$28,938.00
•
Subtotal for Tank Repair.
$30,313.00
Total calendar days
60
Total
I
$93,436.00
,
Note : See also attached Contractor's
Proposal
•
"
f
TOTAL
60
$ 93,436.00
DEPT • Public Works Department
PROJECT: 1990 Tank Rehabilitation Project
CITY OF ROUND ROCK
CONSTRUCTION CHANGE ORDER
CHANGE DATA
Page 2 of 2
DATE • 2/14/91
1
CHANGE ORDER NO•
a:co2
w„ THE CITY OF ROUND ROCK
,:��: PUBLIC WORKS DEPARTMENT - _
221 East Main Street
j ',� B10 TABULATION
�� Round Rock, Texas 78664 - _
\ (512) 255 -3612
- ni7
BIDS = XTENDz�T,w�lf
=•
BY: Steve Mi �
TEXgsaa
D CH2C�.(Ep
.•''' ERn ¢i
DATE: + ;. W J
• .
SHEET ... ,, -1! g
CONTRACT: 1990 Tank Rehabilitation _ °9..
S
- BIDDERS -- tt • \ � + j i
•Rt� `-.t
LOCATION: City Hall Council Chambers
Corrosion Eliminator
Bid Bond? Yes
A-Way Tank Service
B Bond? Yes
M.R.S. Contracting
_
_
Bid Bond? No
TravDS ••' rat
Painters
Bid Bond ?Can,,ars
BID DATE: October 16, 1990 TIME: 2 :00 po
ITEM
UNIT
APPROX.
QUANTITY
UNIT
PRICE
COST
UNIT
PRICE
COST
UNIT
PRICE
COST
UNIT
PRICE
COST
1.. Barton'dill
L.S.
$ 48,769.00
$ 43,990.00
$ 44,087.00
$ 55,000.00
1.5. Welding
Foot
1100
$ 13.60
$ 14,960.00
$ 10.00
$ 11,000.00
$ 26.17
$ 28,787.00
$10.00
$ 11,000.00
1.B. Shroud
L.S.
$ 8,000.00
$ 16,500.00 -
$ 8,876.00
$ 34,000.00
Subtotal:
$ 71,729.00
$ 71,490.00
$ 81,750.00
$ 100,000.00
2. Westinghouse
L.S.
$ 16,010.00
$ 15,990.00
$ 18,264.00
$ 19,566.00
2.A. Welding
Foot
850
$ 13.70
$ 11,645.00
$ 10.00
$ B,SOO.DO
$ 22.50
$ 19,125.00
$ 10.00
$ 8,500
2.B. Shroud
L.S.
$ 3,659.00
$ 2,500.00
$ 4,358.00
$ 18,000.00
Subtotal:
$ 31,314.00
$ 26,990.00
$ 41,747.00
$ 46,066.00
3. Concrete Pads
S.Y.
50
$ 18.82
$ 941.00
5130.00
$ 6,500.00
$ 24.00
$ 1,200.00
$110.00
$ 5,500.00
BID TOTAL: -
-
$ 103,984.00
$104,980.00
-
$ 124,697.00
_
$ 151,566.00
a: 6'dta
DATE: February 12, 1991
SUBJECT: City Council Meeting, February 14, 1991
ITEM: 9G. Consider a resolution authorizing a change order for
Corrosion Eliminator, Inc. to paint the main well site
tank.
STAFF RESOURCE PERSON: Jim Nuse
STAFF RECOMMENDATION:
Recently a level transducer failed at the main well site ground water tank causing
the water to overflow from the tank. In order to assess any possible damage, the tank
was drained and inspected internally. The inspection revealed that several locations of
the top angle brace and several rafters had rusted in several locations.
This tank is scheduled to be the next tank repaired in the on -going tank
rehabilitation program. During this program, the tank will be sandblasted, and painted
inside and out, new overflows constructed and any other necessary rehabilitation such as
rust removal and welding.
Since some damage to the tank occurred, which is covered by our insurance, staff
recommends painting and modifying the overflows at this time. Corrosion Eliminator
currently has a contract with the City of Round Rock for the rehab of two tanks. The
contractor has agreed to extend his unit prices for painting related items and the rehab
work. The repairs will be negotiated with the insurance company.
This change order is recommended for several reasons:
1. The contractor is in town and can paint and repair this tank prior to the
heavy summer usage.
2. The unit prices are from a bid that was opened on October 16, 1990, where
four contractors bid. This insures that the work will be done competitively.
3. Repair portion is covered by insurance.
4. The longer it takes to paint the tank, the longer the corrosion has to work.
If it were bid out, we could not schedule the work prior to next winter.