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NATIONAL MUNICIPAL STORMWATER ALLIANCE

EIN 81-1751139 SPRINGFIELD, VA

Browse the largest nonprofits in Virginia

Revenue 2024
$64,300
Expenses 2024
$136,305

Program services were 100.0% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
W03
Classification
1200
Street
8001 FORBES PL STE 211

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Other organizations at this address

2 other organizations in the IRS Business Master File list the same street address. matched by us

This address is a suite or unit (STE 211). Organizations that share one are often clients of the same office-services firm, accountant or registered agent rather than related to each other.

We match the street line and ZIP code as the IRS gives them, ignoring case and outer spaces and nothing else, so "AVE" and "AVENUE" count as different streets and this list can miss some. A shared address can mean related organizations or a shared office, but it can also be a registered agent, a mail drop or a service provider holding mail for unrelated clients. It is not, by itself, evidence that two organizations are connected.

Mission and programs · 2024

Mission

SUPPORT MUNICIPAL SEPARATE STORM SEWER SYSTEM MS4 PERMITEES. SERVEAS THEIR VOICE, ADVOCATE FOR SCIENCE BASED POLICIES AND UNDERSTANDING

  • STEPP - THE VISION OF THE STEPP PROGRAM IS TO PROVIDE A NATIONAL-LEVEL TESTING AND VERIFICATION PROGRAM FOR BOTH PROPRIETARY MANUFACTURED TREATMENT DEVICES (MTDS) AS WELL AS PUBLIC DOMAIN PRACTICES, INCLUDING GREEN STORMWATER INFRASTRUCTURE. STEPP LEADS THE DEVELOPMENT OF AMERICAN SOCIETY OF TESTING AND MATERIAL (ASTM) INTERNATIONAL PERFORMANCE TESTING STANDARDS THAT ARE USED WHEN EVALUATING THE EFFICACY OF STORMWATER INFRASTRUCTURE TO TREAT POLLUTANTS OF INTEREST. STEPP VERIFICATION SERVICES INCLUDE A REVIEW OF TESTING PROCEDURES AS WELL AS REVIEW OF TESTING OUTCOMES.

    Expenses $115,505 · Revenue $53,500

  • STORMWATER CAPTURE AND USE - NMSA IS PROVIDING SUPPORT TO RESEARCH REGULATIONS AND FUNDING ISSUES ASSOCIATED WITH SCU PROJECTS AND TECHNOLOGIES IN AN EFFORT TO DEVELOP A FINDINGS AND RECOMMENDATIONS REPORT ON SCU TO BROADEN THE ADOPTION OF THESE PROJECTS AND TECHNOLOGIES.

    Expenses $10,800 · Revenue $10,800

  • MEMBER SUPPORT - NMSA RECEIVES MEMBERSHIP FEES TO GENERATE PRODUCTS AND SERVICES, SUCH AS WEBINARS AND NEWSLETTERS, TO PROVIDE INFORMATION ON NATIONAL ISSUES TO NMSA MEMBERS. WE ALSO DEVELOP AND HOST TECHNICAL TRAINING MATERIALS AND COURSES. WE HOST MEETINGS WITH OTHER NATIONAL ORGANIZATIONS AND ENTITIES FOCUSED ON STORMWATER TOPICS.

    Expenses $10,000

As filed on the 2024 return.

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Scott Taylor

    CHAIR

    Total calculated
    $0
    Hours/week
    4
  • Jamie Houle

    VICE CHAIR

    Total calculated
    $0
    Hours/week
    1
  • Seth Brown

    EXECUTIVE DIRECTOR

    Total calculated
    $0
    Hours/week
    8
  • James Moore

    TREASURER

    Total calculated
    $0
    Hours/week
    1
  • Laurie Larson-Pugh

    MEMBER AT LARGE

    Total calculated
    $0
    Hours/week
    1
  • Jessica Schultz

    MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Pat Sauer

    MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Will Stallard

    MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Gian Villarreal

    MEMBER

    Total calculated
    $0
    Hours/week
    1
  • Zach Henderson

    MEMBER

    Total calculated
    $0
    Hours/week
    1

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $64,300
    Expenses
    $136,305
    Contributions
    $64,300
    Grants paid
    $0
  • 2023
    Revenue
    $192,685
    Expenses
    $54,784
    Contributions
    $192,685
    Grants paid
    $0
  • 2022
    Revenue
    $113,056
    Expenses
    $156,621
    Contributions
    $63,056
    Grants paid
    $0

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2021 · 990

    Revenue
    $262,041
    Expenses
    $200,969
    Assets (EOY)
    $103,186
  • 2020 · 990-EZ

    Revenue
    $102,007
    Expenses
    $131,795
    Assets (EOY)
    $42,114
  • 2019 · 990-EZ

    Revenue
    $51,986
    Expenses
    $78,289
    Assets (EOY)
    $71,902
  • 2018 · 990-EZ

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    $98,205

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all.

Form 990-N e-Postcard, tax year 2017

Tax period
1 January 2017 to 31 December 2017
Principal officer
Scott Taylor
Mailing address
107 South West StreetAlexandria VA 22314
Website
nationalstormwateralliance.org

As filed, from the IRS e-Postcard file of 2 November 2026. The IRS publishes only each organization's most recent postcard, so earlier years are not shown. A 990-N carries no financial detail. The postcard also gives the principal officer's address, which is not shown here.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

No itemized grant names this organization as a recipient. Only grants over $5,000 are itemized, and only by filers of the full Form 990.

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 13 October 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 13 October 2026 and read 1 November 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.