Water & Sewer Bids in California

50+ open Water & Sewer bids from cities, counties, schools, and state agencies across California. Get email alerts when new opportunities are posted.

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Open Water & Sewer Bids in California

CACountyOpenTODAY
Turlock Lake Water System Improvement Project
County of Stanislaus
Water & Sewer
CACountyOpenTODAY
Turlock Water System Improvement Project
Stanislaus County
Water & Sewer
CACityOpenSep 15, 2026
Novato Police Department Water Infiltration Project
Novato · #26-016
Water & Sewer
CACityOpenSep 15, 2026
Civil Engineer Consultant For Pierce Street Wastewater Lift Station
Riverside
Water & Sewer
CACountyOpenSep 16, 2026
Grease Trap, Septic Tank, Sewer Line Pumping and Related Services
Santa Clara County · #ITB-PRC-FY27-0051
Water & Sewer
CACityOpenSep 18, 2026
Wastewater Treatment Plant Network Services Proposal
San Mateo
Water & Sewer
CAStateOpenSep 18, 2026
Buchanan Park Storm Drain Improvements
BidNet Direct - California
Water & Sewer
CAwater_sewerOpenSep 21, 2026
RFB for Santiago Pump Station Modifications
Orange County Water District · #Contract No. SB-2026-1
Water & Sewer
CACityOpenSep 21, 2026
Water Line Replacement at Oakland and Santa Fe - CIP 5661
Hemet
Water & Sewer
CAStateOpenSep 21, 2026
Santiago Pump Station Modifications
BidNet Direct - California
Water & Sewer
CAwater_sewerOpenSep 21, 2026
Santiago Pump Station Modifications
Orange County Water District · #Contract No. SB-2026-1
Water & Sewer
CAStateOpenSep 22, 2026
Wastewater Sampling, Testing, Analysis, and Reporting in Los Angeles County
BidNet Direct - California
Water & Sewer
CACountyOpenSep 22, 2026
E-RFQ #27-007 - Water & Wastewater Treatment Chemicals
Fresno County · #RFQ #27-007
Water & Sewer
CACountyOpenSep 24, 2026
Regional WWTF Interior Service Roads Upgrade
Kings County · #26-29
Water & Sewer
CACityOpenSep 24, 2026
Yorba Linda - Storm Drainpipe Lining Installation
Yorba Linda
Water & Sewer
CAStateOpenSep 24, 2026
Boulevard and Mountain View Avenue Storm Drain Replacement Project
BidNet Direct - California
Water & Sewer
CACityOpenSep 24, 2026
Park Hill Booster Pump Station Emergency Generator Project
Escondido · #RFB 26-18
Water & Sewer
CACityOpenSep 27, 2026
457-SH - RFSQ - Water Well System Maintenance Services - Closing: Continuous
Los Angeles · #217084
Water & Sewer
CACityOpenSep 27, 2026
710-Sh - Water Well Systems Maintenance Services - Closing: Continuous
Los Angeles · #217078
Water & Sewer
CAsanitationOpenSep 28, 2026
Request for Proposals - Released 08/12/2026
COSTA MESA SANITARY DISTRICT
Water & Sewer
CACityOpenSep 28, 2026
613-Sh - Rfsq - Water Well System Maintenance Services - Closing: Continuous
Los Angeles · #217120
Water & Sewer
CACountyOpenSep 29, 2026
RFQ #MCARC-0368 - Laundry Services for Riverside University Health Systems-Medical Center (RUHS-MC)-Environmental Services Department(EVS)
Riverside County · #RFQ #MCARC-0368
Water & Sewer
CACityOpenSep 29, 2026
Requirements Contract to Furnish & Install Polyethylene Water Service Replacements
Fresno
Water & Sewer
CAStateOpenSep 29, 2026
Facility Operation And Maintenance Of The Wastewater Treatment Plant, Wastewater Collection And Stormwater Collection Systems
BidNet Direct - California
Water & Sewer
CACityOpenSep 29, 2026
Inland Feeder/San Bernardino Valley Municipal Water District (SBVMWD) Foothill Pump Station Intertie, Stage 1
Newport Beach
Water & Sewer
CAutilityOpenSep 30, 2026
Water Tank Painting Services
Eastern Municipal Water District · #RFP-US.251054
Water & Sewer
CACityOpenOct 1, 2026
Water Treatment Plant (WTP) ST52 Filter Media Replacement
San Luis Obispo · #2001041
Water & Sewer
CACityOpenOct 1, 2026
RFP #PUR 27-006 - Customer Notice Processing Services
Stockton · #RFP #PUR 27-006
Water & Sewer
CAStateOpenOct 1, 2026
Chilled Water System Upgrade
BidNet Direct - California
Water & Sewer
CACountyOpenOct 5, 2026
Wastewater, Water & Solid Waste Systems Consulting Services
Placer County · #20685
Water & Sewer
CAStateOpenOct 5, 2026
On-Call Water Treatment Plant Maintenance Program
BidNet Direct - California
Water & Sewer
CACityOpenOct 5, 2026
On-Call Water Treatment Plant Maintenance Program
Ontario
Water & Sewer
CACityOpenOct 5, 2026
Fifth Street Elevated Water Tank, CIP No. ET8290
Davis
Water & Sewer
CACityOpenOct 6, 2026
Wastewater Treatment Plants Influent Improvements Alternative Analyses
Roseville · #RFP #08-183
Water & Sewer
CACityOpenOct 6, 2026
College Park East Stormwater Infrastructure Design Services (CIP SD2601)
Seal Beach
Water & Sewer
CACityOpenOct 21, 2026
Procurement of Emergency Backup Generator Replacement For Dual Purpose Pump Station
Roseville · #RFP #08-187
Water & Sewer
CACountyOpenOct 28, 2026
Alvarado Trunk Sewer Ph IV and Water Main Relocations Bid Package A - ADVERTISEMENT ONLY
San Diego County
Water & Sewer
CACountyOpen--
Vineyard Surface Water Treatment Plant Filter Repair
Sacramento County · #289281
Water & Sewer
CAUnivOpen--
RFQ/RFP 2627-408 DW Stormwater Strategy White Paper & AB 1572 Compliance Consulting Services
Rancho Santiago Community College District Office · #2627-408
Water & Sewer
CACountyOpen--
Sacramento County Water Agency Landscaping Services
Sacramento County · #294765
Water & Sewer
CAother_specialOpen--
Water and Wastewater
PLUMAS EUREKA COMMUNITY SERVICES DISTRICT
Water & Sewer
CACountyOpen--
Qvl For Architectural Services - Task Orders
Orange County · #293568
Water & Sewer
CACityOpen--
As-needed catch basin maintenance services
Calabasas · #287838
Water & Sewer
CACityOpen--
Request For Qualifications (RFQ) For On-Call Instrumentation And Controls Services
Watsonville · #295527
Water & Sewer
CACityOpen--
Environmental Consulting for Pump Station 1 and Soquel Pump Station
Santa Cruz · #256461
Water & Sewer
CACityOpen--
Request for Proposals (RFPs) – For On-Call Consultant Services on an As Needed Basis for Development Services
Anaheim · #295237
Water & Sewer
CAwater_sewerOpen--
MWA marks the completion of the Mojave River Pipeline Traveling Screen Project with a ribbon cutting ceremony August. 19, 2026
Mojave Water Agency
Water & Sewer
CACityOpen--
2026 & 2027 Accessibility and Drainage Project
Citrus Heights
Water & Sewer
CAother_specialOpen--
Classification and Total Compensation Study
Valley Sanitary District · #293095
Water & Sewer
CAwater_sewerOpen--
Safety Training Consultant Services
West County Wastewater · #285377
Water & Sewer

California Agencies with Open Water & Sewer Bids

Alameda13 openSacramento Area Sewer District11 openBidNet Direct - California7 openLucia Mar Unified5 openLos Angeles3 openOrange County3 openSacramento County3 openEAST NILES COMM SERVICE DIST3 open

Other Bid Categories in California

Water & Sewer bids nationwideConstructionRoads & PavingIT & TechnologyProfessional ServicesEngineeringLegal & FinancialVehicles & EquipmentFacilities & MaintenanceLandscaping & GroundsSupplies & MaterialsEnvironmentalPublic SafetyParks & RecreationTransportationFood ServicesMedical & HealthEducationUtilities

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