HomeMy WebLinkAbout2006-12-05; Municipal Water District; 624; Maerkle Dam rainwater system replacement®PV CARLSBAD MUNICIPAL WATER DISTRICT - AGENDA BILL
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AB# 624
MTG. 12/05/06
DEPT. ENG
REQUEST FOR APPROPRIATION OF FUNDS FOR
THE MAERKLE DAM FLOATING COVER
RAINWATER SYSTEM REPLACEMENT
DEPT. HEAD j/) g-f^
CITYATTY. V(jj2s
CITYMGR. "3)1^
RECOMMENDED ACTION:
Adopt Resolution No. 1285 appropriating funds in the amount of $200,000 to perform
design and replacement of the drain system on the floating cover of Maerkle Dam.
ITEM EXPLANATION:
The reservoir behind Maerkle Dam is a 200 million gallon storage facility with a flexible polypropylene
floating cover and an asphaltic concrete liner. The floating coyer was installed in 1998 to meet
California Department of Health (CDHS) requirements. The cover is 45 millimeters thick and covers a
surface area of about 16 acres when the reservoir is full. The major components of the cover include
floats for buoyancy, an access system made up of 19 hatches, and a rainwater removal system made
up of eight in-sump pumps and approximately 3,600 feet of discharge hoses.
This project covers the design and replacement of the rainwater removal system. The system has
reached its life expectancy and is experiencing hose leaks and pump failures. Since the reservoir
contains treated drinking water, failures of the rainwater systems could expose Carlsbad Municipal
Water District (CMWD) to CDHS actions that could result in fines.
ENVIRONMENTAL IMPACT:
The project is a Class 2 categorical exemption (replacement or reconstruction of existing structures or
facilities) and is, therefore, exempt from the environmental review process under provision of the
California Environmental Quality Control Act (CEQA). Section 15302(c).
FISCAL IMPACT:
Staff estimates the cost for preparing design and bid documents, and performing the work at
$200,000. Funds are available in the Water Replacement Fund.
OPTIONS TO CITY COUNCIL
Option 1:
Move forward with the project at this time. This will allow for replacement of the equipment.
Option 2:
Not move forward with the project at this time. The existing system will stay in place and continue to
deteriorate. Failures of the system could expose CMWD to CDHS actions.
Staff recommends that the project be implemented and that $200,000 from the Water Replacement
Fund be allocated to this project.
EXHIBITS:
1.
2.
Location map.
Resolution No.1285 approving funds in the amount of $200,000.
DEPARTMENT CONTACT: Eva Plajzer 760-602-2787 eplai@ci.carlsbad.ca.us
FOR CITYCLERKS USE ONL Y.
BOARD ACTION: APPROVED
DENIED
CONTINUED
WITHDRAWN
AMENDED
D
D
D
D
CONTINUED TO DATE SPECIFIC D
CONTINUED TO DATE UNKNOWN D
RETURNED TO STAFF D
OTHER - SEE MINUTES D
LOCATION MAP
NOT TO SCALE
SITE
CITY OF OCEANSIDE
HIGHWAY ,>»
PROJECT NAME MAERKLE DAM FLOATING COVER
RAINWATER SYSTEM REPLACEMENT
EXHIBIT
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DRAWN BY: SCOTT EVANS, CARLSBAD ENGINEERING DEPT. 11/20/06 C: \CAPITAL\PLAJZER\UAERKLE DAM COVER.DWG
1 RESOLUTION NO. 1285
2 A RESOLUTION OF THE BOARD OF DIRECTORS OF
CARLSBAD MUNICIPAL WATER DISTRICT (CMWD),
3 APPROPRIATING FUNDS FOR THE MAERKLE DAM FLOATING
COVER RAINWATER SYSTEM REPLACEMENT.
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WHEREAS, the Board has determined it necessary and in the public interest to
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appropriate funds for the Maerkle Dam Floating Cover Rainwater System Replacement; and
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WHEREAS, funds in the Water Replacement Fund are available to appropriate.
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NOW, THEREFORE, BE IT RESOLVED by the Carlsbad Municipal Water District Board
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of the City of Carlsbad, California, as follows:
9 1. That the above recitations are true and correct.
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2. That the Finance Director is authorized to appropriate $200,000 from the
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Water Replacement Fund for the Maerkle Dam Floating Cover Rainwater System Replacement.
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PASSED, APPROVED AND ADOPTED at a Special Meeting of the Carlsbad
Municipal Water District held on the 5th day of December, 2006, by the following vote,
to wit:
AYES: Board Members Lewis, Hall, Kulchin, Packard, Sigafoose
NOES: None.
ABSENT: None.
, President
ATTEST:
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LORRAINE M. WOOD, Secretary
'''/,
Ray Patchett - Re: CMWD Agenda Item # 1 Pagel
All Receive-Agenda Item #
For the Information of the:
CITY COUNCIL
Asst.
From: Eva Plajzer
To: Glenn Pruim; Ray Patchett
Date: 12/05/2006 11:04:05 AM
Subject: Re: CMWD Agenda Item # 1
Date! 1 • <s~City Manage
The drain system sits on top of the cover and is exposed to the elements, especially UV. Normal life
expectancy for these hoses is usually about 5 to 7 years. The pumps experience a lot of dust and debris,
which cause damage to the mechanical elements. I will be putting together a brief presentation for this
evening's council meeting and will be present. Also, I will bring a piece of the hose with me.
>» Ray Patchett 12/05/06 8:37 AM >»
Gang,
Not surprisingly, we got a question from council during briefings that you need to be prepared to answer
tonight. The general question is "How does a drain system wear out in 8 years?"
Please call me if you have any questions.
Ray
CC:Bill Plummer; Joseph Adams; Lisa Hildabrand; Mark Stone;Hammann
R [EOtEOWE
DEC 5 2006
CITY OF CARLSBADCITY CLERK'S OFFICE
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Maerkle Dam Floating Maerkle Dam Floating Cover Rainwater System Cover Rainwater System ReplacementReplacement
Project LocationProject LocationMaerkle DamEl Camino RealPalomar Airport Road
Site OverviewSite OverviewMaerkle DamMaerkle DamConstructed in early 1960sConstructed in early 1960sLined and covered in 1998Lined and covered in 1998Cover SystemCover SystemFlexible polypropylene floating coverFlexible polypropylene floating coverFloat systemFloat systemAccess systemAccess systemRainwater removal systemRainwater removal systemUnder CDHS jurisdictionUnder CDHS jurisdiction
Rainwater SystemRainwater SystemEight inEight in--sump pumpssump pumps33--and 4and 4--inch discharge hosesinch discharge hoses
Sump PumpsSump Pumps
Discharge HosesDischarge Hoses
Damage to Drainwater SystemDamage to Drainwater SystemPumpsPumpsRustRustFloat problemsFloat problemsDebrisDebrisHosesHosesLeaks due Leaks due to exposureto exposure
Project OverviewProject OverviewDesign replacement systemDesign replacement systemProvide for cover cleaningProvide for cover cleaningMeet California Department of Health Services Meet California Department of Health Services inspection requirementsinspection requirements
Questions?Questions?