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The following bids are open to the public:

Request for Proposals- Tank & Reservoir Cleaning      Closes 4/14/17

Q&As for Tank & Reservoir Cleaning

Bid No. SURPLUS 2016–   Closes 9/30/2016

Call for Bids 2016 Tree Trimming      Closes 7/29/2016

Request for Proposals Janitorial Services 

Request for Proposals- Photovoltaic System Installation   Closes 2/5/2016

Supplemental Bidder Questions/Answers for PV System Installation


Small Works Roster & Equipment Vendor List

Small Works Roster and Consultant Roster

Effective June 1, 2013, Mason County PUD 1’s small public works roster, vendor roster and consultant roster are hosted by the non-profit Municipal Research and Services Center of Washington in the online MRSC Rosters database. More information can be found at

Registration Process

1. Visit

2. Click the “Join MRSC Rosters” button

3. Create a FREE account and select Mason County PUD No. 1 in your application

If you have registration questions, please contact MRSC Rosters at 206-625-1300 or For questions about specific public works projects, please contact Mason County PUD No. 1. Thank you for your interest in doing business with PUD 1!