HomeMy WebLinkAbout06-12-012 c1 laguna lift station replacement projectMeeting Dat e
June 12, 201 2
Item Number
C 1
counci l
ac En ba RepoRt
C I T Y O F S A N L U I S O B I S P O
FROM :
Carrie Mattingly, Utilities Director cgm
Prepared By :Jennifer Metz, Utilities Project Manager J1'1
SUBJECT : LAGUNA LIFT STATION REPLACEMENT PROJECT — SPECIFICATIO N
NO . 9111 6
RECOMMENDATION
l ; Approve plans and specifications for the Laguna Lift Station Replacement Project, Specificatio n
No . 91116 .
2 . Authorize staff to advertise for bids .
3 Authorize the City Manager to award the contract if the lowest responsible bid is within the
Engineer's Estimate of $525,30 0
DISCUSSIO N
Backgroun d
The City's wastewater collection system includes nine lift stations . The Laguna Lift Station
(Laguna) is located within the City's Water Reclamation Facility at 35 Prado Road and serves th e
western portion of the City, including receiving flow from the Calle Joaquin, Silver City, an d
Prefumo lift stations, gravity flow from the Laguna Lake area, and tank drains from the Wate r
Reclamation Facility . Laguna pumps approximately 750,000 gallons of wastewater daily during dr y
weather and over two million gallons per day during wet weather .
Since 2003 when Laguna was put into service, the City has not been able to operate the lift statio n
consistent with the operational specifications due to varied and repeated failures that have occurred .
The lift station has required extensive repairs, costly maintenance, and utilized excessive staff tim e
to keep it operational and functional . The high level of risk associated with continuous failures, an d
the ongoing operations and maintenance costs, make continuing the lift station's operatio n
infeasible .
The Laguna Lift Station Replacement project will be sited approximately 20 feet north of th e
existing station . The project includes :
1.A 12-foot diameter pre-fabricated, pre-engineered, coated, concrete wet well an d
three submersible pumps .
2.Use of the existing motor control center building .
3.A new discharge manifold that connects to the existing 15" force main .
4.Connection to the City's existing SCADA system .
A
C1-1
Laguna Lift Station Replacement Project — Specification No . 91116 Page 2
CONCURRENCE S
The City's Community Development Director approved a Categorical Exemption fro m
environmental review for this project in May 2012 . The Public Works Department staff concurs
with this request.
FISCAL IMPAC T
The project is identified in the 2011-13 Financial Plan, Appendix B, Capital Improvement Plan ,
pages 3-77 through 3-79 with $200,000 for design, $800,000 for construction, and $200,000 for
construction management services .
In October 2011, the City entered into an agreement for design services with AECOM, Inc . for th e
replacement of two existing lift stations, Laguna and Calle Joaquin, at a total cost of $535,400 wit h
$144,600 attributed to the design cost for the Laguna Lift Station project .
Due to the long lead time, advance purchase of the pumps and wet well for $345,000 wa s
authorized by the City Council in May 2012 to expedite the replacement of the Laguna Lift Station .
This equipment will be furnished to the contractor for installation during the project's construction .
The Engineer's Estimate of construction cost is $525,300 . Funds will be transferred via a Budge t
Amendment Request at time of contract award .
Laguna Lift Station Replacement Project Costs :
Design Services :
$144,60 0
Construction Services :
Equipment (Pumps and Wet Well)
$345,00 0
Construction Estimate
$525,300
Construction Contingencies (20%):
$105,10 0
Construction Management
$74,400
Miscellaneous Construction Costs (Printing, Materials Testing, Etc .)
$5,000
Total for Construction :
$1,054,80 0
Total Project Costs :
$1,199,40 0
AVAILABLE FOR REVIEW IN THE COUNCIL OFFIC E
Plans and Special Provisions for the Laguna Lift Station Replacement Projec t
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