This Government Contract opportunity from California was posted on August 24, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Wastewater and Storm Drain Engineering

Closed

State & Local

Submission Closed09/10/2026, 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: 541330

New

Scattergood GS. Units 1&2 Green Hydrogen-Reaady Modernization

Solicitation # scattergood-gs-units-12-green-hydrogen-reaady-modernization

Kiewit Infrastructure West Co. is seeking sub-quotes for the Scattergood GS Units 1 and 2 Green Hydrogen-Ready Modernization project for the City of Los Angeles Department of Water and Power. The scope of work is extensive, encompassing professional and technical services such as civil, structural, mechanical, electrical, and instrumentation and controls engineering, as well as utility locating, geotechnical and geophysical investigations, BIM/3D modeling, and environmental assessments. Additional requirements include hazardous materials surveys, permitting support, and CPM scheduling. Interested firms must contact Kiewit to receive an Invitation to Bid via the Building Connected system, with a bid date of September 11, 2026, and a response deadline of September 30, 2026. Eligible bidders include Disadvantaged, Minority, Women, and Other Business Enterprises, provided they hold certifications from recognized agencies such as the SBA or MBDA. Responsive bidders must possess a valid California Contractor's license and provide acceptable insurance. Subcontractors and material contractors are required to provide bonding for 100 percent of their contract value, though Kiewit will reimburse the associated bond premiums. Furthermore, Kiewit, as a signatory to various collective bargaining agreements, requires bidders to demonstrate an ability to maintain labor harmony on the project. For further information or to review plans and specifications, interested parties should contact Lead Estimator Joe Bockelman.

Kiewit Infrastructure West Co.

POSTED

DEADLINE

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

Water Systems Consulting, Inc. is seeking qualified subconsultants to assist with the Southwest Sewer Improvement Phase 3 project for the City of Bend, Oregon. The scope of work involves professional design services to address sewer system deficiencies, including the extension of gravity sewer mainlines, the decommissioning of pump stations, and the installation of service laterals for properties currently using septic systems. Additional requirements may include transportation improvements. Specifically, WSC is looking for expertise in roadway and drainage engineering, surveying and mapping, right of way services, and public outreach. This project is funded by the Clean Water State Revolving Fund and administered through the Oregon Department of Environmental Quality. The solicitation is open to various small business designations, including DBE certified firms, and is associated with NAICS codes 541330, 541370, 531390, and 541820. Interested parties must respond by September 29, 2026.

Water Systems Consulting, Inc.

POSTED

DEADLINE

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.

POSTED

DEADLINE

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.

POSTED

DEADLINE

Multimodal Transportation & Traffic Analysis

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Reconnecting Communities Initiative

Solicitation # 2027-RFQ-CNH-395

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Wood Pole Inspection and Condition Assessment Services

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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.

POSTED

DEADLINE

Adaptive Traffic Control System-Grant Funded

Solicitation # 26-8677

Transportation Management Services

POSTED

DEADLINE

Acoustic Needs Assessment

POSTED

DEADLINE

2026-06 Mechanical and Electrical Upgrades Campus Wide

POSTED

DEADLINE

Third-Party Inspection & Testing

Housing Authority of the County of San Bernardino (HACSB)

POSTED

about 24 hours ago

DEADLINE

in 24 days

AI Contract Overview

This subcontract opportunity with the City of Oroville Public Works Department involves providing specialized hydraulic modeling and design services for storm drain and wastewater conveyance systems. The selected contractor will be responsible for developing infrastructure plans, performing capacity analysis, and conducting hydraulic calculations utilizing industry-standard software such as EPA SWMM, SewerGEMS, or HEC-RAS. Final deliverables include technical specifications, hydraulic reports, and comprehensive engineering design plans. To qualify for this role, the contractor must hold a valid California Professional Engineer license. The project is located in Oroville, California, under NAICS code 541330. Interested parties must submit their responses by the deadline of September 10, 2026.

General Info

Hydraulic modeling and design services for Oroville Public Works; deadline September 10, 2026.

Agency

California → City of Oroville Public Works DepartmentView Agency

NAICS

541330 - Engineering ServicesView NAICS

Place of Performance

Oroville, CA, 95965, USA

Set-Aside

NONE

Documents

This scope was carved out of 20260823002.

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

View the prime solicitation

On-Call Professional Civil Engineering & Land Surveying Services

AI Contract Breakdown

Uniform Contract Format

No contract breakdown available.

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Timeline

PhaseClosed

PostedAug 24

subcontract

Response DeadlineSep 10

Deadline has passed

Submission Closed

09/10/2026, 11:00:00 PM UTC

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Organization & Contact Information

AgencyCalifornia → City of Oroville Public Works Department

ContactsNo contacts available

OfficeN/A

Organization / Agency

California → City of Oroville Public Works Department

View Agency Profile

Office AddressN/A

ContactsNo contact information available

Full Description

Performs specialized hydraulic modeling and design for wastewater conveyance and storm drain systems for prime contractors on City of Oroville Public Works projects. Develops infrastructure plans and performs hydraulic calculations and capacity analysis using EPA SWMM, SewerGEMS, or HEC-RAS. Requires California Professional Engineer (PE) license. Delivers engineering design plans, hydraulic reports, and technical specifications.

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