Nonprofit · EIN 94-6078513
CALIFORNIA GROUNDWATER ASSOCIATION
Tax-exempt · WESTERVILLE, OH 43081
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $125,538 | $149,575 | -$24,037 | $157,681 | $53,867 | $103,814 |
| December 31, 2024 | 990 | $149,163 | $143,734 | $5,429 | $178,102 | $50,251 | $127,851 |
| December 31, 2023 | 990 | $147,541 | $129,553 | $17,988 | $181,230 | $58,808 | $122,422 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $4,560
- Program service revenue
- $103,700
- Investment income
- $2,372
- Net income from fundraising events
- $2,100
- Other revenue
- $14,906
Expenses
- Grants and similar amounts paid
- $3,500
- Compensation of officers, directors and key employees
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Legal fees
- $12,450
- Accounting fees
- $2,076
- Travel
- $98
Balance sheet and other
- Total assets, start of year
- $178,102
- Total assets, end of year
- $157,681
- Total liabilities, end of year
- $53,867
- Net assets, end of year
- $103,814
- Net assets without donor restrictions
- $26,246
- Net assets with donor restrictions
- $77,568
- Gross unrelated business income
- $9,850
- Gross receipts
- $125,538
- Employees
- 0
- Volunteers
- 13
- Year formed
- 1956
- State of legal domicile
- CA
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.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Dan Headman | Secretary Trustee or director, Officer | 4 | $0 |
| Cliff Fasnacht | Director Trustee or director | 1 | $0 |
| Tylor McMillan | President Trustee or director, Officer | 4 | $0 |
| Forrest Jones | Director Trustee or director | 1 | $0 |
| Erik Lowe | Director Trustee or director | 1 | $0 |
| Don Huckfeldt | Director Trustee or director | 1 | $0 |
| Tom Weimer Jr | Vice President Trustee or director, Officer | 4 | $0 |
| Steve Greenwood | Director Trustee or director | 1 | $0 |
| John Mott | Director Trustee or director | 1 | $0 |
| Tim Guishard | Director Trustee or director | 1 | $0 |
| Bob Murphy | Director Trustee or director | 1 | $0 |
| Ty Martin | Director Trustee or director | 1 | $0 |
| Gary Mickelson | Director Trustee or director | 1 | $0 |
| Ronnie Stewart | Director Trustee or director | 0 | $0 |
| Matt Petersen | Director Trustee or director | 0 | $0 |
990 for the year ended December 31, 2024: 13 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Dan Headman | Secretary Trustee or director, Officer | 4 | $0 |
| Cliff Fasnacht | Director Trustee or director | 1 | $0 |
| Tylor McMillan | President Trustee or director, Officer | 4 | $0 |
| Forrest Jones | Director Trustee or director | 1 | $0 |
| Erik Lowe | Director Trustee or director | 1 | $0 |
| John Hofer | Director Trustee or director | 1 | $0 |
| Tom Weimer Jr | Vice President Trustee or director, Officer | 4 | $0 |
| Steve Greenwood | Director Trustee or director | 1 | $0 |
| John Mott | Director Trustee or director | 1 | $0 |
| Tim Guishard | Director Trustee or director | 1 | $0 |
| Bob Murphy | Director Trustee or director | 1 | $0 |
| Ty Martin | Director Trustee or director | 1 | $0 |
| Gary Mickelson | Director Trustee or director | 1 | $0 |
990 for the year ended December 31, 2023: 12 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Michael Guardino | Director Trustee or director, Officer | 4 | $0 |
| Cliff Fasnacht | President Trustee or director, Officer | 4 | $0 |
| Tylor McMillan | Vice President Trustee or director, Officer | 4 | $0 |
| Forret Jones | Director Trustee or director | 4 | $0 |
| Erik Lowe | Director Trustee or director | 1 | $0 |
| John Hofer | Director Trustee or director | 1 | $0 |
| Tom Weimer Jr | Secretary Trustee or director, Officer | 1 | $0 |
| Steve Greenwood | Director Trustee or director | 1 | $0 |
| Ronnie Stewart | Director Trustee or director | 1 | $0 |
| Tim Guishard | Director Trustee or director | 1 | $0 |
| Bob Murphy | Director Trustee or director | 1 | $0 |
| Jerri Stancoff | Director Trustee or director | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 601 DEMPSEY RD, WESTERVILLE, OH 43081-8978
- Principal officer (990 for 2025)
- Tylor McMillan, 601 Dempsey Road, Westerville, OH 43081
- Signed the 990
- Tylor McMillan, President
- Phone
- (916) 231-2134
- Website
- www.groundh2o.org
- Return prepared by
- Pinnacle Accounting & Financial Services
Mission
Caring for California's groundwater resources giving high quality service to members and the public acting in the best interest of the groundwater industry.
Program accomplishments
- California groundwater association provides the following program services for its' members: newsletter, membership rosters, seminars, convention, legislation monitoring, insurance programs, specification review, scholarships, public information, and membership referrals. It serves more than 374 members directly and its' activities provide industry-wide benefits.
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 year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 94-6078513
- Tax-exempt status
- 501(c)(6): Business league or chamber of commerce
- Donations deductible
- No
- Exempt since
- 1959
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $157,681
- Income (IRS master file)
- $125,538
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $125,538 | $149,575 | $157,681 | IRS |
| 990 | December 2024 | $149,163 | $143,734 | $178,102 | IRS |
| 990 | December 2023 | $147,541 | $129,553 | $181,230 | XML |
| 990 | December 2022 | $139,226 | $120,934 | $156,328 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 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 94-6078513).
Questions about CALIFORNIA GROUNDWATER ASSOCIATION
- What is the EIN of CALIFORNIA GROUNDWATER ASSOCIATION?
- The employer identification number (EIN) of CALIFORNIA GROUNDWATER ASSOCIATION is 94-6078513.
- Is CALIFORNIA GROUNDWATER ASSOCIATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(6) since 1959.
- Are donations to CALIFORNIA GROUNDWATER ASSOCIATION tax-deductible?
- No. The IRS master file says contributions to it are not deductible.
- Which annual return does CALIFORNIA GROUNDWATER ASSOCIATION 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 CALIFORNIA GROUNDWATER ASSOCIATION 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 CALIFORNIA GROUNDWATER ASSOCIATION 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 CALIFORNIA GROUNDWATER ASSOCIATION?
- The 990 for the year ended December 31, 2025 names Tylor McMillan.
- Who are the officers and directors of CALIFORNIA GROUNDWATER ASSOCIATION?
- The 990 for the year ended December 31, 2025 lists 15 people; 0 received compensation from the organization.
- How much revenue does CALIFORNIA GROUNDWATER ASSOCIATION have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $125,538, expenses of $149,575 and total assets of $157,681 at year end.
Other nonprofits in WESTERVILLE
- OHIO LABORERS DISTRICT COUNCIL OHIO CONTRACTORS ASSOCIATION INSURANCE EIN 31-6052984 · last filed 990 for 2024
- ONEOHIO RECOVERY FOUNDATION EIN 88-0647873 · last filed 990 for 2024
- OHIO LIVING COMMUNITIES EIN 34-4429863 · last filed 990 for 2025
- OTTERBEIN UNIVERSITY EIN 31-4379532 · last filed 990 for 2025
- OHIO LIVING HOLDINGS EIN 27-2564811 · last filed 990 for 2025
- UNION BENEFITS TRUST EIN 31-6471095 · last filed 990 for 2025
- OHIO LIVING EIN 31-1340918 · last filed 990 for 2025
- AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES EIN 31-6044189 · last filed 990 for 2025