ITEM 6-E
Council Meeting: December 14, 1999 Santa Monica, California
TO: Mayor and City Council
FROM: City Staff
SUBJECT: Recommendation to Authorize the City Manager to Negotiate and Execute a Modification to the Agreement with Montgomery Watson Americas for Engineering Services During Construction of the Coastal Interceptor Sewer Project
Introduction
This report requests that the City Council authorize the City Manager to negotiate and execute a modification to Agreement Number 7216 (CCS) with Montgomery Watson Americas to increase the contract amount by $453,000 for engineering design services during construction of the Coastal Interceptor Sewer Project, and approve $45,300 in contingency funds for the contract.
Background
The Coastal Interceptor Sewer (CIS) collects sewage from the City of Los Angeles, north of the City limits and, with additional flows from the City of Santa Monica, carries it to the City of Los Angeles
= Hyperion Plant for treatment. Many sections of the CIS were damaged by the 1994 Northridge earthquake and projects are underway to repair the damage. The cities of Santa Monica and Los Angeles are working jointly on this rehabilitation effort, with Santa Monica serving as the lead agency for that portion of the CIS within the City of Santa Monica. The entire CIS Project includes the Pacific Coast Highway (PCH) sewer replacement, the Appian Way project, the Ocean Avenue to Pico Boulevard to Main Street sewer rehabilitation, the Ocean Avenue and Neilson Way relief sewer, and rehabilitation of the Moss Avenue Pumping Station (MAPS). The CIS Project also includes the replacement of two flow-monitoring stations which monitor flow in and out of the City at the northern and southern City limits. Construction has been completed for the replacement of Moss Avenue Pumping Station=s structural shell and the Appian Way project. Construction for the PCH sewer replacement, Ocean Avenue and Neilson Way relief sewer and the Moss Avenue Pumping Station Phase 2 projects are currently underway. All CIS projects are expected to be completed by spring, 2001.Discussion
On August 27, 1996 the City entered into an agreement with Montgomery Watson Americas to design the Moss Avenue Pumping Station upgrades and Pacific Coast Highway sewer repairs. As preliminary cost estimates for upgrading were refined, staff determined that replacement of certain systems were marginally more expensive but far more cost-effective in the long run. On April 13, 1999, the City modified the original contract to include the expanded scope of services necessary to design the replacement systems of the Santa Monica portion of the regional Coastal Interceptor Sewer project. Montgomery Watson and its project design team are now needed to provide additional engineering design services during construction in order to integrate all of the component projects into a working CIS system. As each component of the project becomes operational, its impact on interrelated systems needs to be examined, tested and fully integrated.
The scope of work will include:
PCH Sewer Replacement: Additional coordination meetings with the community and Caltrans; locating staging areas; colorizing bid packages.
MAPS Phase 2: Designing redundant odor control systems; testing and modifying the instrumentation panels which monitor and control the pumping sequence and flow levels.
MAPS Phase 3: Coordination of MAPS Phase 2 with SMURRF; preparation of separate bid package; electrical engineering for architectural lighting; acoustical panel design; structural design of SMURRF/MAPS retaining wall; operations and maintenance manual; start up and training.
PCH Water Line Replacement: A 60-year old, 6-inch cast iron water line exists in Pacific Coast Highway in the vicinity of the PCH sewer replacement project. Since the Utilities Division replaces a certain portion of the older water lines each year, the replacement of this line will be coordinated with the sewer line replacement excavation for economies of scale.
Main Street: Preparation of traffic control plans.
The Montgomery Watson design team includes the architectural designers, traffic and transportation engineers and noise and vibration specialists in addition to Montgomery Watson
=s wastewater systems design specialists.
Budget/Financial Impact
FUNDS REQUIRED
Contract $453,000
Contingency $45,300
TOTAL $498,300
Funds in the amount of $111,670 ($96,370/contract plus $15,300/contingency) are available in Account Number C31062299.589000. Funds in the amount of $336,630 ($306,630/contract plus $30,000/contingency) are available in Account Number C31034500.589000 (Moss Avenue Pumping Station). Funds in the amount of $28,000 are available in Account Number E1334M000.555060.30000 (Project 4 - Main Street). Funds in the amount of $22,000 are available in Account Number C25013698.589000 for the water line replacement in Pacific Coast Highway. Of the total cost of the Pacific Coast Highway Sewer, approximately 83% will be reimbursed by FEMA grants. Approximately 16% will be reimbursed by the City of Los Angeles and contract agencies other than Santa Monica under the terms of the City
=s wastewater service agreement with the City of Los Angeles. Thus, the City of Santa Monica=s share will be approximately 1% of the total cost of the Pacific Coast Highway sewer replacement.For earthquake-funded projects, a City match account number C31012499.589000 sets aside 10% of the engineering services costs ($2,800) that the City retains until final FEMA/OES audit, which may take several years.
Of the total cost of the Moss Avenue Pumping Station, approximately 98.5% will be reimbursed by the City of Los Angeles and contract agencies other than Santa Monica under the terms of the City
=s wastewater services agreement with the City of Los Angeles.Recommendation
Staff recommends that the City Council:
1. Authorize the City Manager to negotiate and execute a modification to Agreement 7216 (CCS) with Montgomery Watson Americas to increase the contract amount by $453,000 for engineering services on the Coastal Interceptor Sewer Project, and approve $45,300 in contingency funds for the contract; and
2. Authorize the City Engineer to issue any necessary change orders to complete additional work within budget authority and in accordance with the Administrative Instructions on Change Orders.
Prepared by: Craig Perkins, Environmental and Public Works Management Director
Anthony Antich, P.E., City Engineer
il Borboa, P.E., Utilities Manager
Jack Schroeder, P.E. Disaster Recovery Program Manager
Susan Lowell, P.E., Civil Engineer