California Water & Sewer District Bids & RFPs

176 open bids from 30+ water and sewer districts across California. Get email alerts when new opportunities are posted.

Get California water & sewer district bid alerts

7-day free trial · $0 today · Cancel anytime

California Water & Sewer Districts with Open Bids

Sonoma County Water Agency (Sonoma Water)41 openValley Water33 openWater Replenishment District of Southern California22 openSanta Clara Valley Water District11 openMEINERS OAKS COUNTY WATER DISTRICT8 openMojave Water Agency5 openSan Francisco Public Utilities Commission5 openWESTERN MUN WATER DIST OF RIVERSIDE5 openEAST NILES COMM SERVICE DIST4 openMission Springs Water District4 openSan Diego County Water Authority4 openYuba Water Agency4 openMETROPOLITAN WATER DIST OF SOUTHERN CALIFORNIA3 openSALIDA SANITARY DIST3 openCENTRAL MARIN SANITATION AGENCY2 openMIDWAY HEIGHTS CO WATER DISTRICT2 openPATTERSON TRACT COMMUNITY SERVICES DISTRICT2 openSan Bernardino Valley Municipal Water District2 openSausalito-Marin City Sanitary District2 openSTOCKTON EAST WATER DISTRICT2 openSUMMERLAND SANITARY DISTRICT2 openVallecitos Water District2 openBIGHORN-DESERT VIEW WATER AGENCY1 openCENTRAL COAST WATER AUTHORITY1 openEastern Municipal Water District1 openElsinore Valley Municipal Water District1 openGARBERVILLE SANITARY DISTRICT1 openHelix Water District1 openIrvine Ranch Water District1 openLAKE MADRONE WATER DISTRICT1 open

Latest Water & Sewer District Bids in California

CAwater_sewerOpenOct 26, 2026
RFP On-Call External Investigative Services
Valley Water
Other
CAwater_sewerOpenOct 26, 2026
(Repost) On-Call Environmental Site Assessments/Hazardous Substance Liability Assessments (ESAS/HSLAS), Remediation, Storm Water Management And Engineering Services
Valley Water
Engineering
CAwater_sewerOpenOct 27, 2026
HVAC Maintenance Inspection As-Needed Installation Repair & Urgent On-Call Svcs
San Diego County Water Authority · #NIB-JN-HVACMaintenanceInspectionAsNeededInstallRepairOnCall
Facilities & Maintenance
CAwater_sewerOpenOct 29, 2026
Purchase and Delivery of Sodium Hypochlorite (12.5%) in Bulk and 53-Gallon Drums
San Diego County Water Authority · #RFP-JN-PurchaseDeliverySodiumHypochloriteBulk53GallonDrums
Supplies & Materials
CAwater_sewerOpenOct 30, 2026
Generator and Transfer Switch Installation
Valley Water
Vehicles & Equipment
CAwater_sewerOpenOct 30, 2026
San Francisco Intertie Valves and Joints
Valley Water
Other
CAwater_sewerOpenNov 3, 2026
IFQ for Ion Exchange Resin Procurement, Installation, and Disposal for PFAS Treatment Systems
Orange County Water District · #IFQ-26-001
Other
CAwater_sewerOpenNov 3, 2026
Construction Of The Wild Acres Pump Station
Rainbow Municipal Water District
Construction
CAwater_sewerOpenNov 3, 2026
Construction Manager/General Contractor Services for Direct Potable Reuse Demonstration Facility
METROPOLITAN WATER DIST OF SOUTHERN CALIFORNIA
Construction
CAwater_sewerOpenNov 3, 2026
2025 Consumer Confidence Report
BIGHORN-DESERT VIEW WATER AGENCY
IT & Technology
CAwater_sewerOpenNov 4, 2026
Wilmore Electronics Dc-Dc Power Converters (97 Units)
METROPOLITAN WATER DIST OF SOUTHERN CALIFORNIA
Other
CAwater_sewerOpenNov 5, 2026
RFP-Miramar Pipeline Condition Desktop Assessment Study
Three Valleys Municipal Water District
Water & Sewer
CAwater_sewerOpenNov 10, 2026
Coyote-Alamitos Canal Shotcrete Repairs
Valley Water
Other
CAwater_sewerOpenNov 11, 2026
On-Call Biologist Support Services - O&M
Valley Water
Other
CAwater_sewerOpenNov 11, 2026
Veterans Day / Día de los Veteranos
Mission Springs Water District
Other
CAwater_sewerOpenNov 13, 2026
On-Call Classification and Compensation Support Services
Valley Water
Other
CAwater_sewerOpenNov 13, 2026
On-Call Mechanical Maintenance Services
Valley Water
Other
CAwater_sewerOpenNov 13, 2026
As-Needed Safety Consulting Services
San Diego County Water Authority · #RFP-JN-AsNeededSafetyConsultingServices
Professional Services
CAwater_sewerOpenNov 13, 2026
On-Call Cultural Resource Assessment And Tribal Resources
Valley Water
Other
CAwater_sewerOpenNov 16, 2026
Granular Activated Carbon (Gac) Replacement Services
STOCKTON EAST WATER DISTRICT
Other
CAwater_sewerOpenNov 17, 2026
R.M. Levy Water Treatment Plant Filter Rehabilitation Project
Helix Water District · #CIP 25203
Construction
CAwater_sewerOpenNov 18, 2026
C0720 Coyote Percolation Dam Phase 2
Valley Water
Other
CAwater_sewerOpenNov 18, 2026
Roofing Services for Valley Center Pump Station
San Diego County Water Authority · #NIB-JN-ValleyCenterPumpStationRoofing
Water & Sewer
CAwater_sewerOpenNov 18, 2026
Rancho Penasquitos Pressure Control & Hydroelectric Fac Bridge Cranes NIB 26-03
San Diego County Water Authority Engineering Department · #2026-MV-Bridge Cranes
Roads & Paving
CAwater_sewerOpenNov 19, 2026
Clements Pipeline and Reservoir Phase 2A
STOCKTON EAST WATER DISTRICT
Water & Sewer
CAwater_sewerOpenNov 26, 2026
Thanksgiving (MSWD Offices Closed) / Día de Acción de Gracias (Oficinas de MSWD cerradas)
Mission Springs Water District
Other
CAwater_sewerOpenDec 2, 2026
Benefits Assessment & Special Parcel Tax Administrative Services
Valley Water
Other
CAwater_sewerOpenDec 3, 2026
Large Diameter Concrete & Metallic Pipeline Inspection Services
METROPOLITAN WATER DIST OF SOUTHERN CALIFORNIA
Construction
CAwater_sewerOpenDec 7, 2026
Fishery Habitat Characterization and Identification of Restoration Opportunities: Stevens Creek
Valley Water
Other
CAwater_sewerOpen--
Invitation To Bid For Sewer Main Line Repair, Banner Ave
SUMMERLAND SANITARY DISTRICT
Other

More California Bids

California School District bidsCalifornia County bidsCalifornia University bidsCalifornia Transit Agency bidsCalifornia Housing Authority bidsConstruction in CaliforniaRoads & Paving in CaliforniaWater & Sewer in CaliforniaIT & Technology in CaliforniaProfessional Services in CaliforniaEngineering in CaliforniaLegal & Financial in CaliforniaVehicles & Equipment in California

Never miss a California water & sewer district bid

We monitor water and sewer districts across California daily. Get matching bids delivered to your inbox.

Start your free trial