Active SLED Opportunity · WASHINGTON · CITY OF SAMMAMISH

    2027 Sammamish Stormwater Addendum Update

    Issued by City of Sammamish
    cityRFQCity of SammamishSol. 9072063064
    Open · 20d remaining
    DAYS TO CLOSE
    20
    due Jun 23, 2026
    PUBLISHED
    May 29, 2026
    Posting date
    JURISDICTION
    City of
    city
    NAICS CODE
    541620
    AI-classified industry

    AI Summary

    City of Sammamish seeks qualifications for updating its 2027 Stormwater Addendum to comply with NPDES permit, adopting the 2026 King County Surface Water Design Manual, revising stormwater codes, and enhancing water quality BMPs to protect ecosystems and meet nutrient removal goals.

    Opportunity details

    Solicitation No.
    9072063064
    Type / RFx
    RFQ
    Status
    Active
    Level
    city
    Published Date
    May 29, 2026
    Due Date
    June 23, 2026
    NAICS Code
    541620AI guide
    Jurisdiction
    City of Sammamish
    Agency
    City of Sammamish

    Description

    The 2027 Sammamish Stormwater Addendum update is needed to comply with the National Pollutant Discharge Elimination System (NPDES) permit (the Permit) requirement under item S5.C.6. To maintain compliance, the City intends to adopt the 2026 King County Surface Water Design Manual (KCSWDM) and revise the City’s Addendum. The Project will include reviewing and revising the current stormwater code and stormwater addendum to the new 2026 KCSWDM; with the overarching goals of improving how these requirements are implemented and communicated with the public, increase protection of Sammamish’s natural ecosystems, and to add additional water quality Best Management Practices (BMPs) to meet the City’s nutrient removal goals. **Solicitation Type**: RFQ - Request for Qualifications (Informal) **Source ID**: PU.AG.USA.2672054.C21479626 **Piggyback Contract**: No **Question Acceptance Deadline**: 06/12/2026 05:00 PM EDT **Questions are submitted online**: Yes **Bid Submission Type**: Electronic Bid Submission **Owner Organization**: City of Sammamish **Solicitation Number**: RFQ_QUALIF-0000000023 **Reference Number**: 0000426035 **Pricing**: No Pricing **Bid Documents List**: | Item Name | Description | Mandatory | Limited to 1 file | |---|---|---|---| | Bid Documents | Documents defining the proposal | Yes | No |

    Key dates

    1. May 29, 2026Published
    2. June 23, 2026Responses Due

    AI classification tags

    Frequently asked questions

    SLED stands for State, Local, and Education. These are solicitations issued by state governments, counties, cities, school districts, utilities, and higher education institutions — as opposed to federal agencies.

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