Central Marin Sanitation Agency

Contractor Digester

Contractor Clarifiers

Click here for our

List of Qualified Contractors

This section contains useful information for contractors and vendors
interested in working for the Central Marin Sanitation Agency.
Click on the tabs in the menu bar above for a list of current projects
by type, or view the history archive for a list of recently completed projects.


CMSA maintains a list of prequalified contractors. If you would like your business placed on this list, you must first complete and sign a Contractor's Pre-Qualification Application that describes the type services your company provides.


Central Marin Sanitation Agency (CMSA or Agency) has adopted the Uniform Public Construction Cost Accounting Act (Section 22000, et seq. of the Public Contract Code). CMSA is hereby inviting California licensed contractors to submit an application to be included in the CMSA Calendar Year 2018 List of Qualified Contractors (List). The List will be used to notify contractors of public projects with an estimated value between $45,000 and $175,000.

To be included on the Agency’s List for calendar year 2018, interested licensed contractors shall submit an application to CMSA no later than December 15, 2017. The Contractor’s Pre-Qualification Application can be obtained from this page on the CMSA website or by contacting Agency staff, Amy Hwang, 1301 Andersen Drive, San Rafael, CA 94901 or by email: ahwang@cmsa.us.



Contractors and consultants hired by CMSA are required to carry certain types of insurance such as Workers’ Compensation, Comprehensive or Commercial Liability and Business Automobile Liability. Click here to review our Contractor Insurance Requirements or Consultant Insurance Requirements.



CMSA welcomes bids on construction projects and process chemical supply contracts. The Agency follows the bid processes outlined in California's Uniform Public Construction Cost Accounting Act to ensure that all bidders have the opportunity to be awarded a contract, and that the Agency is able to appropriately manage funds by awarding contracts to the lowest responsive, responsible bidder. 

Please click here to view open bids.



CMSA considers safety to be paramount. We require contractors that work for us have the same dedication to safety. This is accomplished through an assessment of the contractor’s safety programs which takes into account the contractors workers’ compensation experience modification rate (EMR).