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San Diego County

· County

· California

Tijuana River Valley Chemical Pollution Impact Investigation: Retrospective Epidemiological Study

PROPOSALS DUE

October 30, 2026, 5:00 pm PDT

25 days left

WHAT THEY WANT

(Summarized from the RFP)

The County of San Diego Health and Human Services Agency, Public Health Services, is requesting quotes from firms to design, implement and conduct a Retrospective Epidemiological Study as part of its Tijuana River Valley Chemical Pollution Impact Investigation. The study will assess whether there is evidence of health effects from past exposure to emissions from the valley, where untreated sewage and industrial waste produce airborne pollutants, including hydrogen sulfide, that have raised concern in Imperial Beach, Nestor and San Ysidro. The County has treated the sewage issue as a local emergency since 2023.

CHANGES SINCE PUBLISHED

No amendments recorded yet. If the entity publishes changes, they will be summarized here.

WHAT OTHERS ASKED

No questions answered in writing yet — when the government entity answers, each one lands here, with the ones that change who can bid called out.

ABOUT THIS RFP

RFP number

13417

Budget

$200,000 to $250,000

Published

Entity type

County

State

California

Summarized from the San Diego County portal.

HOW TO SUBMIT

Quotes are submitted by electronic upload to the County of San Diego BuyNet portal; offerors must select Participate in RFx for the solicitation in BuyNet to see the RFQ, submit questions and receive notifications. Quotes are PDF files, signed with a handwritten signature by an authorized officer or employee of the offeror. Organize the quote by exhibit, with each exhibit in one or more clearly named files and pages numbered within each exhibit: Exhibit 1 Required Forms (Offeror's Cover Page PC600, Representations and Certifications PC601, Small-Local Business Self-Certification PC610 encouraged, Nondisclosure Indemnification Agreement PC620 if confidential or proprietary information is submitted), Exhibit 2 Program/Technical, Exhibit 3 Cost/Price including the Payment Schedule, Exhibit 4 Acceptance of Terms and Conditions, and Exhibit 5 Confidential/Proprietary. The narrative response may be no more than 15 pages, excluding supporting attachments. Send questions in writing to the Contracting Officer, Julie Terrell, through the Discussions function in BuyNet. Only if unable to submit through BuyNet may an offeror email the quote to the Contracting Officer or deliver electronic files on CD/DVD or a printed quote to the Purchasing and Contracting front desk, marked with the RFQ number.

NAICS CODES & TAGS

541715

541690

Data Analytics and Research Services

Equity-Focused Evaluation and Inclusive Research

ACROSS 539 RFPS

MORE THAN

1 in 5

1 in 5

RFPs changed their terms while active.

A week of proposal work, based on the published terms.

A week of proposal work, based on the published terms.

DAY 1 · PUBLISHED

PUBLISHED

DAY 16 · THE TERMS CHANGE

DAY 16 · TERMS CHANGE

DAY 25 · DUE

DUE

25 days is the median window from publication to due date; day 16 is the median first change for the 113 that changed. 539 RFPs published and due: July 23 - Sept. 30, 2026.

Nothing filed on this RFP yet. The first change typically lands day 16 of 25.

Nothing filed on this RFP yet. The first change typically lands day 16 of 25.

Bid on five RFPs, and the odds are better than two in three that at least one changes its terms before the deadline. Larger firms have staff tracking this. Start free and you’ll have it at your fingertips too.

Free to open

free account required

A free account opens this RFP in full, starting with the rest of the description above — and 5 RFPs a week, no card.

Changes since published

Every amendment filed after it goes out, summarized.

What others asked

Every question the government entity answers in writing, with the ones that matter called out.

The documents

The set as published, in one folder or as direct links to the document.

Matched to you

The RFPs that fit the NAICS codes and tags you save; open up to 5 a week in full.

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"The efficiency of the Leads platform allows us to determine if an RFP is worth the effort in minutes rather than hours. The results speak for themselves, we recently won our first bid, which we initially found on Leads!"

Kiana Stringfield

Founder, AKOMAKONNECT

A week of proposal work, based on the published terms.

A week of proposal work, based on the published terms.

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