This Government Contract opportunity from California was posted on July 28, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Water Quality Modeling and Calibration

Closed

State & Local

Submission Closed08/17/2026, 09:00:00 PM UTC

Contract Overview

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

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NAICS: 541330

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Kiewit Infrastructure West Co.

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Seeking Qualified Subconsultants for City of Bend’s Southwest Sewer Improvement Phase 3, Project No. 1SSW3

Solicitation # seeking-qualified-subconsultants-city-bends-southwest-sewer-improvement-phase-3-project-no-1ssw3

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SEEKING QUALIFIED SUBCONSULTANTS IN RIVERSIDE COUNTY/SOCAL TO SUPPORT WELL REPLACEMENT PROJECT WITH WATER DISTRICT

Solicitation # seeking-qualified-subconsultants-riverside-countysocal-support-well-replacement-project-water

GHD Inc. is soliciting qualified subconsultants to support the Corydon Well Replacement Design Project for the Elsinore Valley Municipal Water District in California. The project seeks firms specializing in engineering, environmental services, surveying, geotechnical analysis, permitting, public outreach, and utility location. This opportunity is specifically targeted toward Disadvantaged Business Enterprises, Small Business Enterprises, Women-Owned Business Enterprises, and Minority-Owned Business Enterprises. Interested firms must contact Charlie Brown via email to submit a qualifications package and request solicitation documents. The primary NAICS code associated with this effort is 541330, though several other professional and technical service codes are applicable. All necessary documentation and expressions of interest must be coordinated by the specified deadlines to be considered for participation in the project.

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Subcontracting Opportunity: City of Bend’s Southwest Sewer Improvement Phase 3, Project No. 1SSW3

Solicitation # 27-3214

Parametrix is seeking qualified subconsultants to provide civil engineering design and right-of-way services for the City of Bend’s Southwest Sewer Improvement Phase 3, Project No. 1SSW3. The project aims to address sewer system deficiencies in southwest Bend by extending a gravity trunk sewer line to unsewered areas, decommissioning existing pump stations in the Romaine Village area, and installing service laterals to transition properties from private septic systems to public sewer. The scope may also include roadway reconstruction, ADA curb ramp and curb design, and minor transportation improvements such as turn lanes or mini roundabouts. The project is funded by the Clean Water State Revolving Fund administered through the Oregon Department of Environmental Quality, with a total design and construction budget of 3,875,000 dollars. The procurement process is managed by the City of Bend, with a proposal deadline of September 29, 2026. Selection is based on technical and administrative capabilities, with the potential for interviews to influence final scoring. Key deliverables include a preliminary engineering report, a public outreach plan, and construction contract documents at 30, 60, 90, and 100 percent completion, culminating in record drawings. The City intends to advertise for construction services in Fall or Winter 2027. Parametrix is actively soliciting firms with recognized federal, tribal, state, local, or independent DBE certifications as part of a good faith effort to include small, minority-owned, women-owned, and veteran-owned businesses.

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RFQ Water & Wastewater SCADA System Upgrade (PSA-2026-26)

Solicitation # 28283

The City of Port Angeles is seeking qualified consulting firms to conduct a professional evaluation and implement a multi-year upgrade of its Supervisory Control and Data Acquisition (SCADA) systems. The scope of work encompasses planning, engineering, integration, and construction support services for the City's Water Facility, Wastewater Treatment facilities, and various remote sites. The City emphasizes inclusivity and encourages responses from disadvantaged, minority, and women-owned firms, while ensuring full compliance with the ADA and Title VI of the Civil Rights Act. Interested consultants must submit electronic proposals in PDF format by October 21, 2026, at 5:00 p.m. Submissions must include firm details, contact information for a project manager, and staffing levels. Proposals will be evaluated based on the firm's reputation, the qualifications of the project manager, the proposed approach, the ability to meet schedules, and familiarity with City facilities and standards.

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Design / Engineering for Microgrid System and DC fast charger

Solicitation # PE-64458-NONST-2027-000000037

The City of Decatur is seeking qualified professional engineering services for the design, bid assistance, and construction administration of a microgrid system and DC fast charger at the Decatur Police Department located at 420 West Trinity Place, Georgia. The project involves integrating a solar photovoltaic generation system and battery energy storage system designed to optimize renewable energy and peak demand management during normal grid-connected operations, while ensuring critical loads remain operational during emergency grid-islanded conditions. The selected consultant will provide a complete set of design plans for bidding and support the project through installation, commissioning, testing, and interconnection with Georgia Power. This solicitation, posted on September 11, 2026, requires proposals to be submitted by October 13, 2026. Funding is provided by the City and a Department of Energy grant, necessitating strict compliance with Build America, Buy America (BABA) requirements and federal regulations. Awarded consultants must maintain an umbrella insurance policy of at least 5 million dollars and adhere to comprehensive non-discrimination and civil rights policies. Evaluation is based on a 100-point weighted system, and the project is expected to begin in November following the award and coordination with Georgia Power. Payment will be made monthly upon the submission of invoices and narrative progress reports to the City Manager.

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CEI, San Antonio District, IH-10

Solicitation # 601CT000006556

The Texas Department of Transportation has issued solicitation 601CT000006556 for Construction Engineering Inspection (CEI) services. The project is located within the San Antonio District and specifically covers IH-10 from Pioneer Road to FM 464 in Guadalupe County, Texas. This procurement falls under NAICS code 541330 and is managed by the agency's SLED organization. Interested parties must submit their responses by October 2, 2026, at 1:00 PM. The primary point of contact for this solicitation is Philip Howlett, who can be reached via email at Philip.Howlett@txdot.gov or by phone at 210-784-6844. The solicitation was officially posted on September 10, 2026.

Texas Department of Transportation

POSTED

about 22 hours ago

DEADLINE

in 20 days

AI Contract Overview

The City of Glendale, California through Glendale Water & Power is seeking a subcontractor to develop and calibrate a hydraulic and water quality model for its potable water distribution system using MSX modeling techniques. The primary objective is to accurately simulate the behavior of chlorine and chloramine residuals across varying demand conditions, ensuring compliance with regulatory standards and optimal disinfection levels throughout the network. The model must account for spatial and temporal variations in water usage, pipe aging, residence times, and chemical decay rates to provide reliable predictions under both normal and peak load scenarios. The contract requires detailed calibration against field data collected from the system, with a focus on achieving high accuracy in residual concentration forecasts. The work must be performed to support operational decision-making, system optimization, and public health protection. The solicitation was posted on July 28, 2026, with a response deadline of August 17, 2026. The NAICS code 541330 indicates this is a professional, scientific, and technical services contract, specifically for environmental consulting. Performance is expected to be centered in Glendale, California, with the subcontractor responsible for delivering a fully validated model and supporting documentation.

General Info

Subcontractor to develop and calibrate MSX model for Glendale’s water distribution system to predict chlorine and chloramine residuals.

Agency

City Of Glendale, California Glendale Water & PowerView Agency

NAICS

541330 - Engineering ServicesView NAICS

Place of Performance

Glendale, CA, 91206, USA

Set-Aside

NONE

Documents

This scope was carved out of 20260727028.

The full solicitation package (1 document), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Water Quality Model Development And Analysis

AI Contract Breakdown

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Timeline

PhaseClosed

PostedJul 28

subcontract

Response DeadlineAug 17

Deadline has passed

Submission Closed

08/17/2026, 09:00:00 PM UTC

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Organization & Contact Information

AgencyCity Of Glendale, California Glendale Water & Power

ContactsNo contacts available

OfficeN/A

Organization / Agency

City Of Glendale, California Glendale Water & Power

View Agency Profile

Office AddressN/A

ContactsNo contact information available

Full Description

Develop and calibrate a hydraulic and water quality model for Glendale's potable water system using MSX techniques to simulate chlorine and chloramine residuals under varying demand conditions.

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