Nonprofit · EIN 83-1449904
GRINDSTONE LAKE FOUNDATION INC
Tax-exempt · CEDAR RAPIDS, IA 52402
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $14,391 | $6,663 | $7,728 | $762,651 | $0 | $762,651 |
| December 31, 2024 | 990 | $6,417 | $17,130 | -$10,713 | $754,923 | $0 | $754,923 |
| December 31, 2023 | 990 | $14,873 | $2,761 | $12,112 | $767,462 | $0 | $767,462 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $14,300
- Program service revenue
- $0
- Investment income
- $1
- Other revenue
- $90
Expenses
- Grants and similar amounts paid
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Program services (functional)
- $6,663
Balance sheet and other
- Total assets, start of year
- $754,923
- Total assets, end of year
- $762,651
- Total liabilities, end of year
- $0
- Net assets, end of year
- $762,651
- Land, buildings and equipment
- $750,380
- Gross receipts
- $14,391
- Employees
- 0
- Volunteers
- 9
- Year formed
- 2018
- State of legal domicile
- WI
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 |
|---|---|---|---|
| CYNTHIA PARKER | PRESIDENT Trustee or director, Officer | 5 | $0 |
| MICHAEL WARDEN | TREASURER Trustee or director, Officer | 5 | $0 |
| I REED PARKER | SECRETARY Trustee or director, Officer | 2 | $0 |
| CHERYL CONTANT | DIRECTOR Trustee or director | 2 | $0 |
| DONNA CARLSON | DIRECTOR Trustee or director | 2 | $0 |
| KAREN MUMFORD | DIRECTOR Trustee or director | 2 | $0 |
| TONY WESTCOT | DIRECTOR Trustee or director | 0 | $0 |
| JOHN MINTON | VICE PRESIDENT Trustee or director, Officer | 2 | $0 |
990 for the year ended December 31, 2024: 9 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| CHERYL CONTANT | DIRECTOR Trustee or director | 5 | $0 |
| DONNA CARLSON | DIRECTOR Trustee or director | 5 | $0 |
| KAREN MUMFORD | DIRECTOR Trustee or director | 5 | $0 |
| KATHERINE MCCOID | DIRECTOR Trustee or director | 2 | $0 |
| TONY WESTCOT | DIRECTOR Trustee or director | 2 | $0 |
| CYNTHIA PARKER | PRESIDENT Trustee or director, Officer | 5 | $0 |
| MICHAEL WARDEN | TREASURER Trustee or director, Officer | 5 | $0 |
| I REED PARKER | SECRETARY Trustee or director, Officer | 5 | $0 |
| JOHN MINTON | DIRECTOR Trustee or director, Officer | 5 | $0 |
990 for the year ended December 31, 2023: 9 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| KAREN MUMFORD | DIRECTOR Trustee or director | 2 | $0 |
| DONNA CARLSON | DIRECTOR Trustee or director | 2 | $0 |
| JOHN MINTON | DIRECTOR Trustee or director | 2 | $0 |
| KATHERINE MCCOID | DIRECTOR Trustee or director | 2 | $0 |
| CHERYL CONTANT | DIRECTOR Trustee or director | 2 | $0 |
| TONY WESTCOT | DIRECTOR Trustee or director, Officer | 2 | $0 |
| CYNTHIA PARKER | PRESIDENT Trustee or director, Officer | 2 | $0 |
| I REED PARKER | SECRETARY Trustee or director, Officer | 2 | $0 |
| MICHAEL WARDEN | TREASURER Trustee or director, Officer | 2 | $0 |
Address and contacts
- Address (IRS master file)
- 2720 GRANITE CT NE, CEDAR RAPIDS, IA 52402-3324
- In care of
- % CYNTHIA PARKER
- Principal officer (990 for 2025)
- CYNTHIA PARKER, 2720 GRANITE CT NE, CEDAR RAPIDS, IA 52402
- Signed the 990
- CYNTHIA PARKER, PRESIDENT
- Return prepared by
- Parker Corridor Law PLLC
Mission
THE PURPOSE OF THIS CORPORATION IS TO PROVIDE FUNDING FOR THE PROTECTION, PRESERVATION AND RESTORATION OF THE WATER QUALITY AND OTHER CONSERVATION VALUES OF GRINDSTONE LAKE, SAWYER COUNTY, WISCONSIN
Program accomplishments
- THE INITIAL PURPOSE OF THE GRINDSTONE LAKE FOUNDATION WAS TO OBTAIN OWNERSHIP OF AN INACTIVE CRANBERRY BOG CONSISTING OF 57 ACRES IN HAYWARD, BASS LAKE TOWNSHIP, SAWYER COUNTY, WISCONSIN. THE PROPERTY IS NOW OWNED AND IS BEING MAINTAINED WITH DONATIONS.Expenses $6,663
What it must file and when
IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. 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
- 83-1449904
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2019
- Accounting year ends
- December
- Files
- Form 990-N (e-Postcard)
- Category (NTEE)
- Environment (C60)
- Assets (IRS master file)
- $762,651
- Income (IRS master file)
- $14,391
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $14,391 | $6,663 | $762,651 | IRS |
| 990 | December 2024 | $6,417 | $17,130 | $754,923 | IRS |
| 990 | December 2023 | $14,873 | $2,761 | $767,462 | XML |
| 990 | December 2022 | $632,774 | $2,707 | $755,350 | 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 83-1449904).
Questions about GRINDSTONE LAKE FOUNDATION INC
- What is the EIN of GRINDSTONE LAKE FOUNDATION INC?
- The employer identification number (EIN) of GRINDSTONE LAKE FOUNDATION INC is 83-1449904.
- Is GRINDSTONE LAKE FOUNDATION INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2019.
- Are donations to GRINDSTONE LAKE FOUNDATION INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does GRINDSTONE LAKE FOUNDATION INC file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of GRINDSTONE LAKE FOUNDATION INC 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 GRINDSTONE LAKE FOUNDATION INC 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 GRINDSTONE LAKE FOUNDATION INC?
- The 990 for the year ended December 31, 2025 names CYNTHIA PARKER.
- Who are the officers and directors of GRINDSTONE LAKE FOUNDATION INC?
- The 990 for the year ended December 31, 2025 lists 8 people; 0 received compensation from the organization.
- How much revenue does GRINDSTONE LAKE FOUNDATION INC have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $14,391, expenses of $6,663 and total assets of $762,651 at year end.
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