HomeMy WebLinkAbout1990-01-16; City Council; 10456; Agua Hedionda Sewage Pump Station, Project # 3303u11~r unnLaDnu - numuu
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[AB# '"! '" ' I TITLE: AWARD OF CONSTRUCTION CONTRACT DEPT.
MTG, 1/16/90
DEPT. MP
FOR THE AGUA HEDIONDA SEWAGE PUMP
STATION, PROJECT NO. 3303 C~TYI
CITY 1
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RECOMMENDED ACTION:
Adopt Resolution No. / (, - I?-.- accepting bids, transferring
appropriating funds, and awarding a contract for the construc
of improvements and capacity expansion of the Agua Hedionda Sei
Pump Station, Project No. 3303.
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ITEM EXPLANATION:
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On June 20, 1989, the City Council adopted Resolution No. 89-
authorizing the advertisement of improvements and capac
expansion to the existing Agua Hedionda Sewage Pump Stat
Project No. 3303. The facility transmits sewage from the Cit Vista and the northern portion of the City of Carlsbad to
Encina water Pollution control Facility. The existing i Hedionda Pump Station is owned jointly by the City of Vista (61 and the City of Carlsbad (38.5%), but operated by Encina.
The present 24.5 MGD (million gallons per day) capacity of the 1
station is inadequate for present peak wet weather flows.
replacing two (2) small obsolete pumps, the sewage pump static
capacity can be increased to 34.5 MGD. The City of Carlsbad SI
Master Plan forecasts the peak flow at build-out to be 30.7 :
The additional capacity provides a desirable margin of safet the event flows exceed the forecasts.
The improvements to the Agua Hedionda Sewage Pump Station inc two (2) new 8,000 gallon per minute pumps with variable frequ, motor drives, a new system control panel, enhanced re: monitoring and emergency alarms, two (2) new standby generatl and a 400,000 gallon overflow basin. These improvements 3
maintenance costs, and improve reliability. Additionally,
overflow basin will preclude discharge into Agua Hedionda La1
in the event of an emergency or equipment breakdown.
On August 16, 1989, the City opened two (2) sealed construc bids for the pump station. One bid was defective and could no awarded. The other bid was $278,000 over the engineer's estim
Consequently, the City Council on September 5, 1989, rejected
bids and authorized the readvertisement of bids for the station improvements.
expand the station's capacity to meet future demand, re1
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Page 2 of Agenda Bill No. /L: C[Sk
On November 8, 1989, the following four (4) bids were received
the City:
Tota Base Bid Alternate Bid
P&H Contracting, Inc. $757,231.65 $113,814.00 $ 871,045
Weardco Construction,
Incorporated 817,491.85 136,000.00 953 , 491 Hunter Corporation 838,330.00 162,670.00 1,001,000 Cal Southwest Construction,
Incorporated 880,000.00 155,000.00 1,035,000
The alternate bid price is for the addition of a mechanical
screen and comminutor to the pump station improvements. Th
devices were included in the previous responsive bid submitted
Cal Southwest Construction in the amount of $1,098,000. The C
Council's authorization to rebid the pump station improvements
produced a savings of $226 , 956 between the original bid and the
responsive low bid of $871,045.65 submitted by P&H Contracti
Incorporated.
The mechanical bar screen catches and lifts debris from the sew inflow that would otherwise clog the pumps. The comminutor gri up the material and stores it in a bin for regular disposal Encina personnel. The Encina Water Pollution Control Facility
strongly recommended inclusion of the bar screen and comminutor
essential to the future reliability of the Agua Hedionda P
Station.
Staff has reviewed the qualifications and references of the bidder. Staff recommends the City Council award P&H Contracti Incorporated, the basic improvements and additive alternate in total amount of $871,045.65.
FISCAL IMPACT:
The estimated project expenses are as follows:
Construction
Base Bid $757,232 Alternate 113 , 814 Contingency (10%) 87,104 Estimated Construction Expense $958 ,
Pre-purchased Pumps
Estimated Utility Service Engineering and Inspection Services
Blueprints and Miscellaneous
Administrative Costs
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19 I 2,
110,
TOTAL COSTS $1,165,
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Page 3 of Agenda Bill No. /e;, L(s 4;
City of Vista's Share (61.5%) $ 716,
City of Carlsbadls Share (38.5%) $ 448,
Appropriated in Account No. 512-820-1850-3303 357,
Additional Appropriation Required $ 91,.
(Rounded to) $ 92,'
The City Council has previously appropriated a total of $1,851,
in the 1985-1986 and 1986-87 Capital Improvement Program budgl
for the Vista/Carlsbad Sewer Interceptor replacement pro j el Construction of this project is deferred until it is required
the City's Growth Management Plan and is not considered as hig:
priority as the Agua Hedionda Sewage Pump Station upgrade. !
City Council is therefore requested to approve a funds transfer i
appropriation in the amount of $92,000 from the Vista/Carlsl
Interceptor project Account No. 512-820-1850-3182 to the A!
Hedionda Sewage Pump Station project Account No. 512-820-1850-3: to enable proceeding with construction at this time.
The Vista City Council on December 11, 1989, authorized the adval
payment of their share of the project cost in the amount
$716,680 to the City of Carlsbad. The unused portion of the Ci
of Vista's payment plus accumulated interest, if any, will
refunded to Vista upon the project's completion. It is recommenc that the Vista payment in the amount of $716,680 be appropriat to the project account.
PROPOSITION H CAPITAL SPENDING REOUIREMENTS
The total estimated cost for the improvements and capaci expansion to the Agua Hedionda Sewage Pump Station is $1,165,33
However, this project is jointly funded between the Cities of Vis
and Carlsbad with the City of Carlsbad's share estimated to tot
$448,654. This sum represents an amount under the Proposition
Capital Project expenditure limitations. Additionally, the proje
is funded entirely from the Sewer Construction Enterprise Fund, source of funding which is exempt from the Proposition limitations.
EXHIBITS :
1. Location Map
2. Resolution No. Ci c' - 12 4 transferring and appropriating fund accepting bids, and awarding a contract for the construction
improvements to the Agua Hedionda Pump Station, Project N
3303.
3. Letter dated January 2, 1990 from the City of Vista.
w 1. . LOCATION MAP
AGUA HEDIONDA
LIFT STATION
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PROJECT NRME c - paw. NO. €XI
AGUA HEDIONDA LIFT STATION 3303
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RESOLUTION NO. -
A RESOLUTION OF THE CITY COUNCIL OF THE CITY
APPROPRIATING FUNDS, ACCEPTING BIDS AND
AWARDING A CONTRACT FOR THE CONSTRUCTION OF IMPROVEMENTS TO THE AGUA HEDIONDA PUMP STATION, PROJECT NO. 3303
OF CARLSBAD, CALIFORNIA, TRANSFERRING AND
WHEREAS, the City Council of the City of Car
California, has determined it is necessary, desirable, and
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~ public interest to advertise for the construction of improv
~ to the Agua Hedionda Sewage Pump Station; and ~
WHEREAS, the four (4) sealed bids were receil
November 8, 1989 for the project; and
WHEREAS, the low bid for the project was submitted
Contracting, Incorporated, in the amount of $871,045.65.
NOW, THEREFORE, BE IT RESOLVED by the City Council
City of Carlsbad, California as follows:
1, That the above recitations are true and corr
2. That the low bid submitted by P&H Contra
Incorporated, in the amount of $871,045.65 is hereby accept
the Mayor and City Clerk are hereby authorized to exec
contract hereafter.
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3. That the Director of Finance is authori:
directed to transfer and appropriate $92,000 from project
NO. 512-820-1850-3182 to project Account No. 512-820-1850-
4. That the City Council does hereby author:
appropriation of the $716,680 advance payment from the {
Vista for said project to the Project Account No. 512-82
3303.
PASSED, APPROVED AND ADOPTED at a regular meetinc
Carlsbad City Council held on the 16th day of January
by the following vote, to wit:
AYES: Council Members Lewis, Kulchin, Pettine, Mamaux a
NOES : None
ABSENT : None
ATTEST:
ALETHA L. RAUTENKRANZ , City Cherk
(SEAL)
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City of Vista
January 2, 1990
City of Carlsbad
2075 Los Palomar Drive
Carlsbad, CA 92009-4859
Attn: Gary Kellison
RE: AGUA HEDIONDA PUMP STATION
Gentlemen:
At its December 11, 1989 meeting the Vista City Council
authorized the appropriation of $716,680.65 for the City's
portion of the Agua Hedionda Project.
These funds are available upon written demand by the City of
Carlsbad.
Sincerely,
$)fqy-
Frank Rowlen
Finance Director
PPI
600 EUCALYPTUS AVENUE 0 P.O. BOX 1988 0 VISTA CALIFORNIA 92083 619/726-1340