City of Santa Monica
California

Staff Report
3756

Approval of first Modification to Contract No. 10733 (CCS) with Michels Pipeline Construction for Water Main Replacement Project

Information

Department:Public Works, Engineering and Street ServicesSponsors:
Category:03. Consent Calendar

Recommended Action

Recommended Action

Staff recommends that the City Council:

1.     Authorize the City Manager to negotiate and execute a first modification to contract #10733 (CCS) in the amount of $1,186,875 (including $237,375 contingency) with Michels Pipeline Construction, a Wisconsin-based company, for the emergency replacement of 1,350 linear feet of water main pipeline on Ocean Avenue from Wilshire Boulevard to Washington Avenue for the Public Works Department. This will result in an amended contract with a new total amount not to exceed $6,245,667.

2.     Authorize the City Manager to negotiate and execute a first modification to professional services contract #10760 (CCS) in the amount of $50,000 (including a 10% contingency) with MNS Engineers, Inc., a California-based company, to provide construction management services for water main pipeline on Ocean Avenue from Wilshire Boulevard to Washington Avenue for the Public Works Department. This will result in an amended contract with a new total amount not to exceed $450,000.

Staff Report Body

Summary

The City replaces water mains every one-hundred years to ensure the reliable delivery of safe potable water to over 27,000 customers.  Last month, two water main breaks occurred on Ocean Avenue due to deterioration as a result of corrosive soils, requiring emergency repairs. While these breaks were promptly addressed and immediate repairs have been made, staff recommends additional measures, including replacing the entire pipeline along Ocean Avenue between Wilshire Boulevard and Washington Avenue (1,350 linear feet) to avoid additional pipe failures. This repair work is in addition to the budgeted water main replacement work being done by Michels Pipeline Construction.  Therefore, staff recommends a first modification to the contract with Michels Pipeline Construction in the amount of $1,186,875 (including contingency) for the emergency replacement of 1,350 linear feet of water mains on Ocean Avenue, for a new total amount not to exceed $6,245,667. Staff also recommends a first modification to the contract with MNS Engineers, Inc. for construction management and inspection services for this work in the amount of $50,000 (including a 10% contingency) for a new total amount not to exceed $450,000.

 

Discussion

The City operates and maintains a water distribution system that consists of 205 miles of water mains (ranging from 6 inches to 36 inches in diameter), fire service lines, fire hydrants, valves, service laterals, and water meters. Water mains can break because of age, material, and soil conditions, resulting in the loss of water, pavement damage, road closures, and interruptions to water service. These are rare in Santa Monica due to the regular replacement of water mains, and staff restores water service to the public and repairs the pavement as quickly as possible.

 

Two water main breaks occurred on Ocean Avenue between Wilshire Boulevard and Washington Avenue on Saturday, August 10 and Wednesday, August 14, 2019. The pipe sections were temporarily repaired by city crews within eight hours. Staff is now proactively replacing the entirety of the corroded pipeline as part of the annual water main replacement project. Service will remain uninterrupted. The pipeline length being replaced is approximately 1,350 linear feet and 12 inches in diameter. Both recommended contract modifications would enable the City to complete the emergency pipe replacement in addition to the original scope of work for the Annual Water Main Replacement Project approved by Council on August 14, 2018 (Attachment A).

 

Past Council Actions

08/14/2018 (Attachment A)

Council awarded Bid #2464 to Michels Pipeline Construction and authorized a contract to provide construction services for the fiscal year 2018/19 Water Main Replacement Project.

10/09/2018 (Attachment B)

Council awarded RFP #2483 to MNS Engineers, Inc. and authorized a professional services contract to provide construction management and inspection services for the fiscal year 2017/18 Annual Wastewater Main Improvements Project.

 

Financial Impacts and Budget Actions

Staff seeks authority to approve funding from the Water Fund to increase the amount of the contract with Michels Pipeline Construction for the emergency replacement of 1,350 linear feet of water main pipeline on Ocean Avenue from Wilshire Boulevard to Washington Avenue. Additionally, staff seeks the authority to approve funding from the Water Fund to increase the amount of the contract with MNS Engineers, Inc. for construction management services for the water main pipeline on Ocean Avenue from Wilshire Boulevard to Washington Avenue.

 

Agreement Modification Request

Agreement #

Contract Authorized Amount

Modified Request Amount

FY 2019-20 Budget

CIP Account #

Total Revised Contract Amount

10733 (CCS)

$5,058,792

$1,186,875

C5004840.689000

$6,245,667

10760 (CCS)

$400,000

$50,000

C5004840.689000

$450,000

 

Due to the urgent nature of this additional work, the requested amount is an estimated not to exceed amount. The actual cost would be determined on a time and materials basis in accordance with the executed construction contract.

Meeting History

Sep 10, 2019 5:30 PM  City Council Regular Meeting
draft Draft