Water & Sewer Bids in Maryland

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

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Open Water & Sewer Bids in Maryland

MDCountyOpenSep 10, 2026
Invitation for Bids – Cleaning of Flow Equalization Tank No. 1 (FET 1) at Ocean Pines Wastewater Treatment Plant (WWTP)
Worcester County
Water & Sewer
MDflood_controlOpenSep 10, 2026
Invitation for Bids – Cleaning of Flow Equalization Tank No. 1 (FET 1) at Ocean Pines Wastewater Treatment Plant (WWTP)
NINEPIN BRANCH PUBLIC DRAINAGE ASSOCIATION
Water & Sewer
MDStateOpenSep 10, 2026
Upgrade North East Harbours Low Pressure Sewer System
BidNet Direct - Maryland
Water & Sewer
MDStateOpenSep 10, 2026
Cleaning of Flow Equalization Tank No. 1 at Ocean Pines Wastewater Treatment Plant
BidNet Direct - Maryland
Water & Sewer
MDCountyOpenSep 10, 2026
Invitation to Bid – Cleaning of Flow Equalization Tank No. 1 (FET 1) at Ocean Pines Wastewater Treatment Plant (WWTP)
Worcester County
Water & Sewer
MDflood_controlOpenSep 10, 2026
Invitation to Bid – Cleaning of Flow Equalization Tank No. 1 (FET 1) at Ocean Pines Wastewater Treatment Plant (WWTP)
NINEPIN BRANCH PUBLIC DRAINAGE ASSOCIATION
Water & Sewer
MDStateOpenSep 14, 2026
Phase 2 Of Upgrades To The Sludge Pumping Station (Ras/Was) At The Wastewater Treatment Plant
BidNet Direct - Maryland
Water & Sewer
MDStateOpenSep 15, 2026
Water Treatment Service
BidNet Direct - Maryland
Water & Sewer
MDCountyOpenSep 15, 2026
Sudlersville Wastewater Treatment Plant ENR Improvement Project
Queen Anne's County · #BPM058134
Water & Sewer
MDStateOpenSep 17, 2026
Storm Drain Materials
BidNet Direct - Maryland
Water & Sewer
MDStateOpenSep 17, 2026
Roadside & Drainage Maintenance for the Maintenance Shops in Anne Arundel County
BidNet Direct - Maryland
Water & Sewer
MDStateOpenSep 18, 2026
Water Treatment Program - Thomas B. Finan Center
BidNet Direct - Maryland
Water & Sewer
MDStateOpenSep 18, 2026
Liquid Sludge Hauling Services for Wastewater Treatment Plants at Myersville and Hagerstown Central Region - SBR Procurement
Maryland Environmental Service · #1-26-2-66-5R
Water & Sewer
MDStateOpenSep 18, 2026
Stormwater Management (Swm) Facility Maintenance Program Support
BidNet Direct - Maryland
Water & Sewer
MDStateOpenSep 18, 2026
Liquid Sludge Hauling Services for Wastewater Treatment Plants at Myersville and Hagerstown Central Region - SBR Procurement
BidNet Direct - Maryland
Water & Sewer
MDStateOpenSep 21, 2026
On Call Environmental and Stormwater Engineering and Design
BidNet Direct - Maryland
Water & Sewer
MDStateOpenSep 23, 2026
Wastewater Treatment Services (Rebid)
BidNet Direct - Maryland
Water & Sewer
MDStateOpenSep 24, 2026
Stormwater Management, Drainage, and Remediation Services for Maryland Metropolitan Districts-MBE Goal 17%
BidNet Direct - Maryland
Water & Sewer
MDStateOpenSep 24, 2026
Stormwater Management, Drainage, and Remediation Services for Maryland Metropolitan Districts-MBE Goal 17%
Maryland Environmental Service · #1-27-3-09-8
Water & Sewer
MDCityOpenSep 24, 2026
Request For Proposal # 39-26 Stormwater Management (Swm) Facility Maintenance Program Support
Rockville
Water & Sewer
MDCountyOpenSep 30, 2026
Reference #: 27-104. Name: Abingdon Water Treatment Plant pH Control System Upgrade
Harford County
Water & Sewer
MDStateOpenOct 9, 2026
New Enclosed Flare and Blower Skid at Eastern Sanitary Landfill
BidNet Direct - Maryland
Water & Sewer
MDStateOpenOct 23, 2026
Metro Charles Center Dewatering Discharge Pipe Replacement
BidNet Direct - Maryland
Water & Sewer
MDCountyOpen--
Friendsville Wastewater Treatment Plant Improvement
Garrett County
Water & Sewer
MDother_specialOpen--
Water Quality Surveillance and Response System
Washington Suburban Sanitary Commission · #297622
Water & Sewer
MDother_specialOpen--
Video Production and Livestreaming Services
Washington Suburban Sanitary Commission · #294739
Water & Sewer
MDother_specialOpen--
Locating and Marking Underground Facilities Services
Washington Suburban Sanitary Commission · #297703
Water & Sewer
MDother_specialOpen--
Regional Water Supply Resiliency Project ("Secure the Source Project") - NDA Requirement
Washington Suburban Sanitary Commission · #287475
Water & Sewer
MDCountyOpen--
Trimble Road Water Main Extension
Allegany County · #Contract
Water & Sewer
MDCountyOpen--
Upgrade North East Harbours Low Pressure Sewer System
Cecil County · #254182
Water & Sewer
MDCityOpen--
Generator Replacement at Four Wastewater Pumping Stations
Bowie
Water & Sewer
MDUnivOpen--
BC-21455-M Campus Water Treatment Services RFP
University of Maryland, Baltimore County (UMBC)
Water & Sewer
MDpark_recreationOpen--
Utility work (sewer/water/storm drainage)
Montgomery Parks (M-NCPPC)
Water & Sewer
MDwater_sewerOpen--
Early Engagement Vendor Session: Water Treatment Services for HVAC and Biosolids
Washington Suburban Sanitary Commission (WSSC)
Water & Sewer
MDCountyOpen--
Proposal Documents - Rate Study for Water Wastewater Service Areas 051926
Worcester County
Water & Sewer
MDCountyOpen--
ADVERTISEMENT - Rate Survey for Water & Wastewater Service Areas 051926
Worcester County
Water & Sewer
MDpark_recreationOpen--
Utility work (sewer/water/storm drainage
Montgomery Parks (M-NCPPC)
Water & Sewer
MDCountyOpen--
Reference #: 27-006. Name: Open-End Stormwater Management Plan Review and Design Services
Harford County
Water & Sewer
MDSchoolOpen--
Bulk Chemicals for Drinking Water and Wastewater Treatment
Harford County Public Schools · #21-JHS-016
Water & Sewer
MDSchoolOpen--
Pumping Septic and Wastewater Treatment Systems
Harford County Public Schools · #21-JHS-023
Water & Sewer
MDSchoolOpen--
Sampling and Analysis of Wastewater
Harford County Public Schools · #22-JHS-021
Water & Sewer
MDSchoolOpen--
Sewer Line Replacement Clemens Crossing Elementary School
Howard County Public School System · #028.22.B3
Water & Sewer
MDSchoolOpen--
Heating Water System Upgrades - Glenelg High School
Howard County Public School System · #054.23.B3
Water & Sewer
MDCountyOpen--
Bid Documents - Water Treatment Plant Overhead Door Replacement v2 042026
Worcester County
Water & Sewer
MDCountyOpen--
Permitted Bid Drawings - Cell 1 Pump Station Upgrades v2 031826
Worcester County
Water & Sewer
MDCountyOpen--
ADVERTISEMENT - Invitation to Bid - Central Landfill Pump Station Upgrades 031826
Worcester County
Water & Sewer

Maryland Agencies with Open Water & Sewer Bids

BidNet Direct - Maryland14 openWorcester County7 openWashington Suburban Sanitary Commission4 openHarford County Public Schools3 openHarford County2 openNINEPIN BRANCH PUBLIC DRAINAGE ASSOCIATION2 openMontgomery Parks (M-NCPPC)2 openHoward County Public School System2 open

Other Bid Categories in Maryland

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

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