HomeMy WebLinkAbout2013-01-29; Municipal Water District; 764; Aprrove Increase Water Tanks Repairs Project 5024CARLSBAD MUNICIPAL WATER DISTRICT - AGENDA Bl 13
AB#
MTG. 01/29/13
764
DEPT. UTIL
APPROVE AN INCREASE IN THE CONTINGENCY
FOR THE THE "Dl" AND "D2" STEEL WATER TANKS
INTERIOR AND EXTERIOR COATING AND
MISCELLANEOUS REPAIRS, PROJECT NO 5024
DEPT. DIRECTOR [j^y^
CITY ATTORNEY fUC^
CITY MANAGER
RECOMMENDED ACTION:
Adopt Resolution No. 1463 approving and authorizing an increase in the contingency for
the "Dl" and "D2" Steel Water Tanks Interior and Exterior Coating and Miscellaneous Repairs, Project
No. 5024.
ITEM EXPLANATION:
On February 28, 2012, the Board of Directors adopted Resolution No. 1436 awarding a contract to
Advanced Industrial Services for the "Dl" and "D2" Steel Water Tanks Interior and Exterior Coating
and Miscellaneous Repairs. The work started in May 2012 with an anticipated completion Winter
2013. The "Dl" Steel Water Tank Interior and Exterior Coating and Repairs has been completed.
Work is currently unden/vay on the "D2" Steel Water Tank. As part of the work, severely corroded
earthquake rods that are attached to the roof beams are scheduled to be replaced. However, during
sandblasting of the "D2" Tank roof beams, unanticipated corrosion was discovered in the existing
beams to a point that they must be replaced to prevent the roof from collapsing.
In order to complete the interior and exterior coating and repairs in accordance with the contract plans
and specifications, it is necessary to replace several roof rafters and beams to mitigate these
unanticipated steel corrosion conditions.
Upon discovery of the extensive corrosion, staff began working with the Contract Engineer to develop
a solution. The recommendations developed include replacing twenty interior rafters, four WT7 X 15
beams, and the dollar plate and "1" beam support and nine external rafters. Implementation of these
mitigation measures will allow Advanced Industrial Services to continue interior and exterior coating
and miscellaneous repairs in accordance with the contract plans and specifications.
ENVIRONMENTAL IMPACT:
The project is exempt from the California Environmental Quality Act (CEQA) per State CEQA
Guidelines Section 15301(b) - minor alteration of existing facilities of public utility services involving
negligible or no expansion.
DEPARTMENT CONTACT: David Ahles 760-602-2748 David.Ahles@Carlsbadca.aov
FOR CITY CLERKS USE ONLY
BOARD ACTION: APPROVED K CONTINUED TO DATE SPECIFIC •
DENIED CONTINUED TO DATE UNKNOWN •
CONTINUED • RETURNED TO STAFF •
WITHDRAWN • OTHER-SEE MINUTES •
AMENDED •
Page 2
FISCAL IMPACT:
The revised total estimated cost of construction for the grading of "01" and "D2" Steel Water Tanks
Interior and Exterior Coating and Miscellaneous Repairs, Project No. 5024, is shown in Table 1. This
table reflects increasing the construction contingency budget by $134,000.
This increase is being requested because the dollar amount of change orders anticipated including
the change order necessary to mitigate the extensive corrosion issues discussed above exceeds the
original change order authorization of $66,000.
TABLE 1 - REVISED PROJECT COST ESTIMATE
"Dl" and "D2" Reservoir Repair / Maintenance, Project No. 5024 ESTIMATED COSTS
Design $25,000
Construction Contract (Advanced Industrial Services) $499,800
Construction Contingencies $66,000
Additional Construction Contingencies $134,000
Inspection, Testing, and Construction Management $75,000
TOTAL ESTIMATED CONSTRUCTION COSTS $799,800
PROJECT AVAILABLE BALANCE $2,160,000
ADDITIONAL APPROPRIATION NONE
As shown in Table 1, sufficient funds are available in the project budget to accommodate the
$134,000 increase in contingency. The Engineer's Estimate for the "D1" and "D2" Interior and Exterior
Coating and Miscellaneous Repairs, Project Nos. 5024, is a total of $799,800 and the appropriation from
the Water Replacement Fund is sufficient for the project.
EXHIBITS:
Location mao.
Resolution
the "01" and
Project No. 5024.
1463 _ J proving and authorizing an increase in the contingency for
D2 Steei Water Tanks Interior and Exterior Coating and Miscellaneous Repairs,
LOCATION MAP
SITE
VICINITY
MAP
»WT TO SCALE
NOT 70 SCALE
PROJECT NAME
D-1 & D-2 COATING REHABILITATION
PROJECT
NUMBER
5024
EXHIBIT
1
PLOTTED an SCOTT EVANS PLOT D>»7E J0/S7/fl P>I7»0 \UVUVES OEP>W71tfNT\OESI6W «VfSfCW\AHL£SV)f * 02 TANKSSp TANKS COAVNG REHAB LOC UAPJm . j
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
RESOLUTION NO. 1463
A RESOLUTION OF THE BOARD OF DIRECTORS OF
CARLSBAD MUNICIPAL WATER DISTRICT (CMWD),
AUTHORIZING AN INCREASE IN THE EXECUTIVE
MANAGER'S SIGNATURE AUTHORITY AND THE
CONTINGENCY FOR THE CONSTRUCTION OF THE "Dl" AND
"D2" STEEL WATER TANKS INTERIOR AND EXTERIOR
COATING AND MISCELLANEOUS REPAIRS, PROJECT NO.
5024.
WHEREAS, on February 28, 2012, the Board of Directors of the Carlsbad Municipal
Water District, Carlsbad, California, through Resolution No. 1436, awarded the contract for
construction ofthe "Dl" and "D2" Interior and Exterior Coating and Miscellaneous Repairs, Project
Nos. 5024, to Advanced Industrial Services; and
WHEREAS, unforeseen conditions including extensive corrosion were discovered on the
"D2" tank in the field which require replacement of the roof rafters and beams; and
WHEREAS, it has been determined to be necessary to increase the construction
contingency for the "Dl" and "D2" Interior and Exterior Coating and Miscellaneous Repairs, Project
Nos. 5024, by an amount of $134,000; and
WHEREAS, the Executive Manager was previously authorized to approve change orders
up to $66,000 and will now be authorized to approve change orders up to $200,000 for the "Dl"
and "D2" Interior and Exterior Coating and Miscellaneous Repairs, Project Nos. 5024; and
WHEREAS, funds are available in the existing project budget to cover the contingency
increase of $134,000.
NOW, THEREFORE, BE IT RESOLVED by the Carlsbad Municipal Water District Board
of the City of Carlsbad, California, as follows:
1. That the above recitations are true and correct.
2. That the contingency for the "Dl" and "D2" Interior and Exterior Coating and
Miscellaneous Repairs, Project Nos. 5024, is hereby increased $134,000 using available project
funds.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
PASSED, APPROVED AND ADOPTED at a Special Meeting of the Board of
Directors of the Carlsbad Municipal Water District of the City of Carlsbad on the 29**^ day
of January 2013, by the following vote to wit:
AYES: Board Members Hall, Packard, Wood, Blackburn, Douglas.
NOES: None.
ABSENT: None.
ATTEST:
tant Secretary
(SEAL)
i¥ mi