This Government Contract opportunity from California was posted on May 22, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Sewer and Clarifier Tank Cleaning

Closed

State & Local

Submission Closed06/24/2026, 11:00:00 PM UTC

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

Active Opportunities Like This One

NAICS: 562991

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Professional Maintenance and Asset Management of Water Storage Tanks

Solicitation # 2027-11

Dorchester County, South Carolina, is soliciting proposals for professional maintenance and asset management services for ten potable water storage tanks, including the Ridgeville and Academy towers. The scope of work encompasses comprehensive engineering inspections, cleaning, disinfection, preventative maintenance, repairs, and coating services to ensure the structural integrity, safety, and operational reliability of the facilities. The selected consultant must provide a detailed maintenance and asset management program with tank-specific schedules and coordinate all operational interruptions, such as tank outages or draining, with Dorchester County Water and Sewer. The contract is structured for an initial one-year term with options to renew for up to four additional one-year terms, requiring firm annual maintenance fees for the full five-year period. Proposals will be evaluated by a committee based on firm qualifications and experience, project understanding and technical approach, and project team qualifications. Submissions must be uploaded electronically via the OpenGov Procurement Portal by November 13, 2026. Awardees are required to provide performance and payment bonds, insurance certificates, and certify compliance with various federal and state regulations, including the Americans with Disabilities Act and South Carolina's Illegal Immigration Act. Payment for approved invoices is due within thirty days and must itemize the seven percent South Carolina sales and use tax.

POSTED

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USSPACECOM Portable Restroom Rental and Maintenance

Solicitation # N6600127Q6008

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Fort Bliss November 2026 Portable Latrines and HW Stations

Solicitation # W911SG27QA004

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Septic Pump-Out Services, Bruce Peninsula National Park

Solicitation # 5P300-26-0067/A

Parks Canada Agency is soliciting Standing Offers for as-needed septic pump-out services, transportation, and sewage disposal at Bruce Peninsula National Park. The initial term runs from January 1, 2027, to December 31, 2027, with options to extend for four additional one-year periods through December 31, 2031. Services are primarily required during the operational season from May 1 to November 30, during which the contractor must be available seven days a week, including statutory holidays. Key service areas include the Cyprus Lake Campground, Singing Sands Comfort Station, and various other park facilities, with all sewage to be disposed of at the Municipality of Northern Bruce Peninsula Sewage Lagoon or another approved site. The contract requires strict adherence to response times, with requests received before 12:00 p.m. ET serviced the same day and those received after completed by the following calendar day. Award selection is based on the lowest evaluated price, provided the offer is compliant and meets Canadian goods and services thresholds. Bidders must maintain all necessary federal, provincial, and municipal licenses and provide a site-specific safety plan covering hazard identification and spill response. Bids must be submitted via email to [email hidden] or by fax to [phone hidden] by November 10, 2026, as submissions via SAP Ariba, courier, or in-person will not be accepted.

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NORTH ZONE SUBSTATION PORTABLE TOILET MAINTENANCE SERVICE.The Western Area Power Administration, under the Department of Energy, is forecasting a contract for portable toilet maintenance services at North Zone substations located in California. This requirement is categorized under NAICS code 562991 and is designated as a small business set-aside. The current incumbent for these services is Big Valley Sanitation, Inc. Interested parties may coordinate with the Small Business Program Managers, Tetrault or Teves, regarding this upcoming procurement opportunity.

Western Area Power Administration

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Water Treatment Plant Operation and Maintenance ServicesThis subcontract for the California Department of Veterans Affairs involves the daily operation, testing, and maintenance of water treatment plants at CalVet facility projects in Napa. The selected contractor will be responsible for conducting water treatment tests, determining chemical dosages, and maintaining critical equipment such as pumps, chlorinators, and metering devices. Additional duties include operating emergency generators, performing minor system plumbing, and delivering operational plants along with necessary compliance reports. To be eligible, contractors must hold a T-2 license or higher from the State of California Water Resources Control Board. This opportunity is categorized under NAICS code 562991, with a response deadline set for November 6, 2026.

California Department of Veterans Affairs

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CHP Marin Area office - Portable Luxury Restroom Trailer Rental and Maintenance Services - IFB #26C350009

Solicitation # 26C350009

The Department of the California Highway Patrol is soliciting bids for Invitation for Bids Number 26C350009 to provide portable luxury restroom trailer rental and maintenance services for the CHP Marin Area office. The anticipated contract term runs from December 1, 2026, to November 30, 2028. The scope of work requires the provision of two luxury trailers: one featuring three stalls, including an ADA-compliant stall, and another featuring two stalls, both with sinks in each stall. The contractor must provide cleaning and pumping services three times per week, ensuring all waste disposal adheres to federal, state, and local regulations. The contract will be awarded to the responsive and responsible bidder offering the lowest adjusted cost. Evaluation includes a pass/fail responsiveness review and verification of mandatory qualifications, including a valid business license, county environmental health permits, disposal site discharge permits, and motor carrier permits for vehicles over 10,001 lbs. Bidders must also be registered with the DIR and certify they are in good standing within California. While the DVBE participation requirement is waived, incentives are available for certified small, micro, and DVBE businesses. Submission requirements are strict, requiring a single original bid package delivered in a sealed envelope by November 6, 2026. All required attachments, including the bid form, client references, and certification clauses, must be signed in ink. Special requirements include mandatory security clearances and driver license checks for all personnel accessing CHP facilities, compliance with prevailing wage rates, and the provision of liability and workers' compensation insurance.

Department of the California Highway Patrol

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Bypass Pumping for Secondary Clarifier InfluentThis subcontract involves providing temporary bypass pumping services for prime contractors working on Town of Middleborough WPCF projects. The primary objective is to divert influent flow away from Manhole 7 to facilitate gate replacement within a dry environment. The selected provider will be responsible for the installation, operation, and maintenance of temporary pumping systems and flow control valves to ensure the continuous and uninterrupted diversion of wastewater throughout the construction period. The project is located in Middleborough, Massachusetts, with performance taking place at the Nickerson Avenue Town Hall site. Interested parties should note that the response deadline is November 19, 2026, and the work falls under NAICS code 562991. This effort is managed under the authority of the Select Board for the state of Massachusetts.

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Portable Latrine Maintenance and Waste ManagementThis subcontract opportunity, titled Portable Latrine Maintenance and Waste Management, involves providing recurring cleaning and waste removal services for portable latrines and hand-wash stations at US Army Fort Bliss facility projects. The selected contractor will be responsible for pumping latrine tanks via vacuum trucks, sanitizing units, and refilling water and sanitizer supplies twice weekly to ensure the delivery of clean and sanitized sanitation facilities. Managed by the Department of Defense under the W6QM Micc-Ft Bliss agency, this project is designated as a Total Small Business Set Aside under NAICS code 562991. All operations must strictly comply with Texas and New Mexico waste disposal regulations. The response deadline for this opportunity is November 13, 2026.

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Blanket Purchase Agreement for Portable Latrine and Hand-Wash Station

Solicitation # W911SG27QA003

The Mission and Installation Contracting Command-Fort Bliss is establishing up to five Blanket Purchase Agreements (BPAs) with eligible small business concerns under NAICS 562991 to provide portable latrine and hand-wash station services. This total small business set-aside supports military training and field exercises at Fort Bliss, Texas, and associated ranges in Texas and New Mexico. The scope of work includes the rental, delivery, anchoring, scheduled cleaning, pumping, sanitization, restocking, relocation, and waste disposal of units. All equipment must be high-wind-resistant, capable of withstanding 45 MPH winds, and compliant with ANSI Z4 3-2005 sanitation standards. The anticipated five-year ordering period runs from November 23, 2026, through November 22, 2031, with a total BPA ceiling of 6.5 million dollars and individual call limits of 1 million dollars. The government will award these firm-fixed-price BPAs based on technical acceptability, past performance from the last three years, and the lowest evaluated prices. Technical evaluations focus on the offeror's capability to meet performance work statement requirements, including emergency response and quality control. Contractors must utilize the Wide Area WorkFlow system for electronic invoicing and adhere to strict safety and security protocols, including the use of company ID badges and compliance with US Army Field Manual FM 21-10 and EM 385-1-1. Quotations must be submitted in administrative, technical, and price volumes, with the technical volume limited to five pages. Unserviceable units must be replaced within 24 hours of identification to ensure mission continuity.

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RFP-591-270000000140-1 | Septic Tank & Vault Pumping Services - MDOT Grand Region

Solicitation # 270000000140

The Michigan Department of Transportation (MDOT) Grand Region Office is soliciting proposals under RFP 270000000140 for as-needed septic tank and vault pumping services. The contract covers 12 rest areas and 12 roadside parks within the Grand Region, requiring the removal, transport, and proper disposal of waste. The scope includes pumping vaults, removing debris, and disinfecting interiors. The award will be granted to responsive and responsible bidders who pass all evaluation criteria and offer the lowest price, with the possibility of multiple contract awards. The contract term is three years with two optional one-year renewals. To qualify, contractors and their vehicles must be licensed by the Michigan Department of Environment, Great Lakes & Energy (EGLE) for septage waste servicing, and any land application of waste must be EGLE-permitted. Bidders must submit a comprehensive proposal including a Confidential Treatment Form, Vendor Questions Worksheet, and detailed schedules for the Statement of Work, Pricing, and Equipment. Evaluation is based on a pass/fail system across these documents. Payments are processed via Electronic Funds Transfer on Net 45 Day terms. MDOT will verify service completion through quantity comparisons and physical inspections using a sludge judge.

GRD - Grand Region Office

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The Municipality of Anchorage is seeking bids for ITB 2026B087 to secure portable restroom rentals and servicing for the Don Young Port of Alaska. This solicitation, identified by number 49699, requires a vendor capable of providing consistent sanitation services and equipment maintenance at the specified location in Alaska. Interested parties must submit their responses by the deadline of November 6, 2026, at 6:00 P.M. All inquiries regarding the bid must be sent via email to [email hidden] no later than 12:00 P.M. Alaska Time on October 28, 2026, and must include the buyer's name, the ITB number, and the ITB title in the subject line.

Municipality of Anchorage

POSTED

5 days ago

DEADLINE

in 10 days

AI Contract Overview

This contract involves the mechanical and hydraulic cleaning of wastewater clarifier tanks along with the associated sewer lines. The work necessitates the use of vacuum trucks and requires personnel to enter confined spaces, emphasizing specialized equipment and safety protocols. The contract falls under the NAICS code 562991, indicating services related to septic tank and related services. Issued by the Public Works agency in California, this subcontract opportunity was posted on May 22, 2026, with responses due by June 24, 2026. While specific location details and points of contact were not provided, the scope clearly focuses on maintaining and cleaning critical wastewater infrastructure to ensure operational efficiency and environmental compliance.