Welcome to the State of California 

Proposition 50 Funding for Public Water Systems

Last Update:  December 19, 2011


CDPH is no longer accepting pre-applications for Proposition 50 funding, but the Department of Water Resources (DWR) has funding available for certain types of drinking water projects. See DWR's Proposition 50 Flyer (PDF)Opens in new window..

Completed projects are present below.

Please go to our funding opportunities for public water systems webpage for important funding-related announcements, claims forms, and other information. 

IMPORTANT NOTICE on Labor Compliance Requirements

Effective January 1, 2012, there are important and substantial labor compliance and monitoring requirements applicable to Proposition 50 (Prop 50) and Safe Drinking Water State Revolving Fund (SRF) funded projects. If you have not awarded the construction contract for your Prop 50 or SRF funded project, prior to January 1, 2012, the new requirements apply to your project; and you must contact Department of Industrial Relations (DIR) in advance of awarding a contract for the project construction.  DIR has further information on how to comply with the new labor compliance and monitoring requirements.  For more information and any questions you have regarding labor compliance and monitoring, please contact DIR at CMU@dir.ca.gov or go to DIR's LCPs website at http://www.dir.ca.gov/lcp.aspIf your project is Proposition 84 funded, the above notice does not apply to your project.


Proposition 50 (PDF)Opens in new window., The Water Security, Clean Drinking Water, Coastal and Beach Protection Act of 2002, Water Code Section 79500, et seq., was passed by California voters in the November 2002 general election. Assembly Bill 1747 (PDF)Opens in new window.was signed into law in August 2003, and took effect immediately, clarifying some of the Proposition 50 requirements. [To stay current, always refer to the actual Water Code, Division 26.5.]

Here's a summary of CDPH's Proposition 50 Grant Programs (PDF)Opens in new window.. CDPH is responsible for Chapter 3 (Water Security) and Chapter 4 (Safe Drinking Water). CDPH is also responsible for sections (b) and (c) of Chapter 6, which deal with treatment technology, through an interagency agreement with the Department of Water Resources. 

Project Ranking Criteria

General ranking criteria and ranking criteria for Chapters 3 and 4 projects (PDF)Opens in new window.

Ranking criteria for Chapter 6 projects (PDF)Opens in new window.

Project Priority Lists (PPLs)

Round 3 PPLs (2008-2009). 

Round 2 PPLs (2006-2007)

Round 1 PPLs (2004-2005).

CDPH does not anticipate inviting more projects, so there will be no new Propostion 50 PPLs.

Invitations for Full Proposals

Invitations for full proposals:  Round 3.

Invitations for full proposals: Round 2.

Invitations for full proposals: Round 1.

Information about applications for invitees.

NOTE: Regarding funding restrictions for Proposition 50, preliminary costs are handled in the following manner: From October 28, 2003 to March 5, 2005, preliminary costs are eligible to be counted as matching funds and are not reimbursable. Starting March 6, 2005, preliminary costs are eligible for reimbursement. No claims for reimbursement can be submitted until the applicant has a funding agreement for the project.

Completed Projects

City of Ripon, Integrated Nitrate and Arsenic Treatment Pilot Investigation (PDF)Opens in new window.

Contra Costa Water District, Removal of NDMA, EDCS and PPCPS in South Delta Water (PDF,  7.4MB)Opens in new window.

FAQs and Other Information

Eligibility Questions (PDF)Opens in new window.

Frequently Asked Questions (PDF)Opens in new window.  

For More Information

To find out more about CDPH's drinking water-related funding opportunities under Proposition 50, contact us by e-mail at prop50@cdph.ca.gov.  There's more Proposition 50 contact information here.

Also, CDPH has other funding opportunities for public water systems.

More Information Pertinent to Project Proposals
Last modified on: 3/12/2014 11:32 AM