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This Solicitation opportunity from California was posted on July 23, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

NPDES COMPLIANCE AND PROGRAM SERVICES

Closed
PUR 27-001State & Local

Contract Overview

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

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NAICS: 541620
New
Federal
B--ONYX RANCH SVRA PROJECT
Solicitation # 140G0326Q0218
Solicitation 140G0326Q0218 is a request for quotation from the Department of the Interior for advanced statistical modeling and assistance for the Onyx Ranch State Vehicle Recreation Area. The project requires a contractor to analyze a 289-hectare dataset to identify critical issues and map occurrences of invasive species, fire-prone grasses, and protected species, including the desert tortoise and western Joshua trees. Key deliverables include publication-quality figures, distribution maps, and statistical models developed using ArcGIS and various advanced methodologies such as general linear mixed effects models and k-means clustering. The estimated period of performance is from October 1, 2026, to February 28, 2027, with work performed at the vendor's facility. The award will be based on a tradeoff method, requiring contractors to demonstrate advanced statistical expertise through peer-reviewed publications from the last 15 years and proficiency in complex spatial and non-parametric analysis. Required submission documents include a signed SF 18 form, a firm fixed-price quote, a technical submission detailing qualifications, a list of prior relevant contracts with references, and a SAM UEI. Initial drafts of specific tasks are due within 60 days of award, with model drafts due within 90 days. All deliverables become government property, and invoicing must be submitted based on hourly rates and hours worked. Responses are due to the contracting officer by September 17, 2026, at 1500 PST.
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The City of Stockton is seeking a qualified professional consultant or team to provide comprehensive NPDES compliance and program assistance services for the Stockton Wastewater Recovery Center. The contractor will be responsible for delivering technical support to ensure ongoing adherence to the NPDES permit requirements, addressing regulatory obligations, and offering guidance on operational improvements and reporting responsibilities. This engagement requires deep expertise in wastewater management, environmental regulations, and permitting processes, with a focus on maintaining compliance and mitigating potential violations. Proposals must be submitted by August 20, 2026, in response to solicitation number PUR 27-001, which was posted on July 23, 2026. The work will be performed entirely within California, specifically at the City’s wastewater facility. The primary point of contact for inquiries is Rajvir Sahota, reachable via phone or email. This procurement is open to all qualified entities without specific set-aside restrictions, and the City intends to select a partner with demonstrated experience in NPDES compliance to ensure the continued safe, lawful, and efficient operation of its wastewater recovery program.

General Info

City of Stockton seeks NPDES compliance consultant for wastewater center by August 20, 2026, in California.

Agency

California → City of StocktonView Agency

NAICS

541620 - Environmental Consulting ServicesView NAICS

Place of Performance

CA, USA

Set-Aside

NONE

Documents

(3)

Exhibit 2 Sample Contract - City of Stockton Standard Agreement

PDFcontract-document

NPDES Permit R5-2025-0027 for City of Stockton Wastewater Recovery Center

PDFnpdes-permit

RFP PUR 27-001 NPDES Compliance and Program Assistance

PDFrfp

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Timeline

PhaseClosed
Posted

Solicitation

Response Deadline

Deadline has passed

Submission Closed

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Organization & Contact Information

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AgencyCalifornia → City of Stockton
Contacts1 person available
OfficeN/A
Organization / Agency
California → City of Stockton
View Agency Profile
Office AddressN/A

Full Description

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The City of Stockton, herein after referred to as the “City”, is requesting proposals from a qualified and experienced professional consultant or team, herein after referred to as “Proponent”, to provide the NPDES compliance and program assistance to the City. The City is seeking a compliance and related technical support services to the Stockton Wastewater Recovery Center NPDES Permit.

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