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Nonprofit · EIN 52-0730143

WATER SYSTEMS COUNCIL

Tax-exempt · WASHINGTON, DC 20007

Financials

$1M$929K2023$1M$1M2024$1.1M$1M2025
Revenue Expenses · by fiscal year end
Financials of WATER SYSTEMS COUNCIL by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$1,104,414$1,028,771$75,643$949,354$374,980$574,374
December 31, 2024990$1,026,653$1,026,066$587$795,840$297,109$498,731
December 31, 2023990$1,031,941$928,567$103,374$699,038$200,894$498,144
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$0
Program service revenue
$1,068,368
Investment income
$33,293
Other revenue
$2,753

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$271,297
Other salaries and wages
$198,127
Salaries, compensation and benefits (total)
$534,550
Professional fundraising fees
$0
Legal fees
$15,264
Accounting fees
$13,162
Travel
$4,011

Balance sheet and other

Total assets, start of year
$795,840
Total assets, end of year
$949,354
Total liabilities, end of year
$374,980
Net assets, end of year
$574,374
Net assets without donor restrictions
$574,374
Gross receipts
$1,104,414
Employees
4
Volunteers
0
Year formed
1959
State of legal domicile
DC

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended December 31, 2025, highest compensation first.

NameTitleHours / weekCompensation
MARGARET MARTENSEXECUTIVE DIRECTOR
Officer
40$154,947
ERIN COFFMANMEMBER SERVICES DIRECTOR
Trustee or director
40$116,350
MARK HEFLINPRESIDENT
Trustee or director, Officer
2$0
FRED FANNVICE PRESIDENT
Trustee or director, Officer
1$0
JAMES SHARROCKTREASURER
Trustee or director, Officer
1$0
MARK BALLDISTRIBUTOR BOARD MEMBER
Trustee or director, Officer
1$0
MATT SERVANTPAST PRESIDENT
Trustee or director, Officer
1$0
STEPHEN ANDERSONBOARD MEMBER
Trustee or director
1$0
JILL BOUDREAUBOARD MEMBER
Trustee or director
1$0
SCOTT BURROUGHSBOARD MEMBER
Trustee or director
1$0
GERRY DUGGANBOARD MEMBER
Trustee or director
1$0
RICHARD MESTBOARD MEMBER
Trustee or director
1$0
PATRICK SLESSBOARD MEMBER
Trustee or director
1$0
JULIE STOREYBOARD MEMBER
Trustee or director
1$0
MIKE WESDELLBOARD MEMBER
Trustee or director
1$0
990 for the year ended December 31, 2024: 15 people
NameTitleHours / weekCompensation
MARGARET MARTENSEXECUTIVE DIRECTOR
Officer
40$148,513
ERIN COFFMANMEMBER SERVICES DIRECTOR
Trustee or director
40$110,246
MATT SERVANTPRESIDENT
Trustee or director, Officer
1$0
DAN STORYPAST PRESIDENT
Trustee or director, Officer
1$0
MARK HEFLINVICE PRESIDENT
Trustee or director, Officer
1$0
DAVID RUTZTREASURER
Trustee or director, Officer
1$0
MARK BALLDISTRIBUTOR BOARD MEMBER
Trustee or director, Officer
1$0
STEPHEN ANDERSONBOARD MEMBER
Trustee or director
1$0
SCOTT BURROUGHSBOARD MEMBER
Trustee or director
1$0
GERRY DUGGANBOARD MEMBER
Trustee or director
1$0
FRED FANNBOARD MEMBER
Trustee or director
1$0
RICHARD MESTBOARD MEMBER
Trustee or director
1$0
JAMES SHARROCKBOARD MEMBER
Trustee or director
1$0
JULIE STOREYBOARD MEMBER
Trustee or director
1$0
MIKE WESDELLBOARD MEMBER
Trustee or director
1$0
990 for the year ended December 31, 2023: 15 people
NameTitleHours / weekCompensation
MARTENS MARGARETEXECUTIVE DIRECTOR
Officer
40$143,833
ERIN COFFMANMEMBER SERVICES DIRECTOR
Trustee or director
40$105,600
MATT SERVANTPRESIDENT
Trustee or director, Officer
1$0
DAN STORYPAST PRESIDENT
Trustee or director, Officer
1$0
MARK HEFLINVICE PRESIDENT
Trustee or director, Officer
1$0
CHRIS KAMPFTREASURER
Trustee or director, Officer
1$0
MARK BALLDISTRIBUTOR BOARD MEMBER
Trustee or director, Officer
1$0
STEPHEN ANDERSONBOARD MEMBER
Trustee or director
1$0
SCOTT BURROUGHSBOARD MEMBER
Trustee or director
1$0
GERRY DUGGANBOARD MEMBER
Trustee or director
1$0
FRED FANNBOARD MEMBER
Trustee or director
1$0
CHRIS HERRONBOARD MEMBER
Trustee or director
1$0
RICHARD MESTBOARD MEMBER
Trustee or director
1$0
JULIE STOREYBOARD MEMBER
Trustee or director
1$0
MIKE WESDELLBOARD MEMBER
Trustee or director
1$0

Address and contacts

Address (IRS master file)
1101 30TH ST NW STE 500, WASHINGTON, DC 20007-3772
Principal officer (990 for 2025)
MARGARET MARTENS, 1101 30TH STREET NW SUITE 500, WASHINGTON, DC 20007
Signed the 990
MARGARET MARTENS, EXECUTIVE DIRECTOR
Phone
(202) 625-4387
Return prepared by
GROSSMAN YANAK & FORD LLP

Mission

WATER SYSTEMS COUNCIL IS THE NATIONAL NONPROFIT ASSOCIATION ORGANIZED TO PROVIDE INFORMATION, TRAINING, EDUCATION, OUTREACH, AND INDUSTRY DATA ABOUT WATER WELLS AND WATER WELL SYSTEMS.

990 for the year ended December 31, 2025

Program accomplishments

  • MEMBER SERVICES: INDUSTRY MEETINGS ARE UTILIZED TO DISCUSS CURRENT ISSUES AND TOPICS, TO LOBBY FOR DESIRED CHANGES IN THE WATER WELL INDUSTRY, AND TO SHARE MARKET DATA INFORMATION GATHERED BY THE ASSOCIATION.
  • EDUCATION AND ADVOCACY: THIS PROGRAM IS DESIGNED TO PROMOTE PRIVATE WATER SYSTEMS IN THE U.S. AS AN APPROPRIATE AND VIABLE SOURCE OF SAFE DRINKING WATER THROUGH TECHNICAL AND PROMOTIONAL LITERATURE AND PROGRAMS. THIS PROGRAM ALSO INCLUDES SUPPORT OF A SEPARATE WATER WELL TRUST THAT PROVIDES FINANCING FOR WELLS FOR LOW INCOME HOUSEHOLDS.
  • WELLCARE PROGRAM SUPPORTS PRIVATE WELL OWNERS BY PROVIDING FREE RESOURCES, EDUCATION, AND ASSISTANCE TO HELP MAINTAIN SAFE, CLEAN DRINKING WATER. IT OFFERS A HOTLINE, DOWNLOADABLE GUIDES, A WELL OWNERS NETWORK WITH NEWSLETTERS AND DISCOUNTS, AND ACCESS TO PROFESSIONAL WELL CONTRACTORS.

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990 on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
52-0730143
Tax-exempt status
501(c)(6): Business league or chamber of commerce
Donations deductible
No
Exempt since
1960
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$949,354
Income (IRS master file)
$1,104,414

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$1,104,414$1,028,771$949,354XML
990December 2024$1,026,653$1,026,066$795,840XML
990December 2023$1,031,941$928,567$699,038XML
990December 2022$991,920$903,223$743,274IRS
990December 2021–––IRS
990December 2020–––IRS
990December 2019–––IRS
990December 2018–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 52-0730143).

Questions about WATER SYSTEMS COUNCIL

What is the EIN of WATER SYSTEMS COUNCIL?
The employer identification number (EIN) of WATER SYSTEMS COUNCIL is 52-0730143.
Is WATER SYSTEMS COUNCIL tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(6) since 1960.
Are donations to WATER SYSTEMS COUNCIL tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does WATER SYSTEMS COUNCIL file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of WATER SYSTEMS COUNCIL due?
The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did WATER SYSTEMS COUNCIL last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2025.
Who is the principal officer of WATER SYSTEMS COUNCIL?
The 990 for the year ended December 31, 2025 names MARGARET MARTENS.
Who are the officers and directors of WATER SYSTEMS COUNCIL?
The 990 for the year ended December 31, 2025 lists 15 people; 2 received compensation from the organization, the highest $154,947 (MARGARET MARTENS, EXECUTIVE DIRECTOR).
How much revenue does WATER SYSTEMS COUNCIL have?
On its 990 for the year ended December 31, 2025 it reported revenue of $1,104,414, expenses of $1,028,771 and total assets of $949,354 at year end.

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