Arundel Rivers Federation Inc
Donations deductibleArundel Rivers Federation Inc's network
13 people1 organisationi13 people and 1 organisation on this map.The large node is the subject of this page. Solid lines are what the register itself records (13). Violet dotted lines (1) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.The board
13 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Tenure and departures are observed across annual filings. Observed tenure is a lower bound - a member may have joined before the first year on record. The organisation reported 13 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.| Name | Role as filed | Since | On the board |
|---|---|---|---|
| Robert Ottenhoff Chair | Chair | 2021 | 5 yrs |
| Cate Bower | Vice Chair | 2023 | 3 yrs |
| Chris Graae | Director | 2023 | 3 yrs |
| Dana Kohnken Cole (also filed as Dana Cole) | Director | 2019 | 7 yrs |
| Greg Ziegler | Director | 2023 | 3 yrs |
| John Dankowski | Director | 2022 | 4 yrs |
| John Flood | Director | 2022 | 4 yrs |
| John Wyss | Treasurer | 2019 | 7 yrs |
| Lynn Johnson Langer (also filed as Lynn Langer) | Director | 2018 | 8 yrs |
| Mike Krissoff | Director | 2023 | 3 yrs |
| Paul Kaladas | Director | 2018 | 8 yrs |
| S Stoney Simons JR (also filed as Stoney Simons) | Director | 2019 | 7 yrs |
| VK Holtzendorf | Company secretary | 2023 | 3 yrs |
Officers and senior leadership
5 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.| Name | Title as filed | On the filings |
|---|---|---|
| Denise Swol | Executive Director | since 2019 |
| Elizabeth Buxton | Executive Director | since 2018 |
| James Lyons | Director | 2021 |
| Kevin Green | Director | 2018 |
| Matthew Johnston | Executive Director | since 2022 |
Pay and hours
year to 31 December 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.| Name | Title as filed | Hours a week | Pay from the organisation | Related organisations | Other |
|---|---|---|---|---|---|
| Matthew Johnston | Executive Director | 40 | $147k | $5k | |
| Jennifer Pilholski | Director of Grants and Restoration | 40 | $102k | $3k | |
| Robert Ottenhoff | Chair | 1 | $0 | ||
| Mark Laidlaw | Treasurer | 1 | $0 | ||
| Cate Bower | Vice Chair/ Governance Chair | 1 | $0 | ||
| Sherry Schiller | Secretary | 1 | $0 | ||
| Paul Kaladas | South Adv. Chair | 1 | $0 | ||
| Melanie Hartwig-Davis | Policy Committee Chair | 1 | $0 | ||
| Vk Holtzendorf | West/Rhode Wac Chair | 1 | $0 | ||
| Mike Krissoff | Director | 1 | $0 | ||
| Nancy Booth | Director | 1 | $0 | ||
| David Brashear | Director | 1 | $0 | ||
| Howard Kea | Director | 1 | $0 | ||
| Bruce Ogden | Director | 1 | $0 | ||
| Randez Hadden | Director | 1 | $0 | ||
| Chris Graae | Director | 1 | $0 | ||
| Eric Swanson | Director | 1 | $0 | ||
| Amelia Whitman | Director | 1 | $0 |
About
- Legal name
- Arundel Rivers Federation Inc
- EIN
- 522301464
- Address
- Po Box 760, Edgewater, MD, 21037-0760
- State
- Maryland
- Mission
- Deeply rooted in the south, west, and rhode rivers, arundel rivers federation heals and protects our waterways and champions clean water across maryland. (as filed on the Form 990)
- Activity (NTEE)
- C013 Environment
- IRS classification
- 501(c)03 (tax-exempt under section 501(c)(3) where shown)
- Classified purpose
- Environment
- Size band
- 6 (IRS master file code)
- Formed
- 2000
- Principal officer
- Robert Ottenhoff (as named on the Form 990)
- IRS ruling date
- 1 May 2001
- Status
- Code 01 (unconditional exemption)
- Form 990 filings on record
- 6, latest 2023
- IRS Publication 78
- PC (contributions deductible)
Most connected
Longest observed on the filings
≥8years on the filingsLynn Johnson Langer
≥8years on the filingsPaul Kaladas
≥7years on the filingsDana Kohnken Cole
≥7years on the filingsJohn Wyss
Latest return
year to 31 December 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2025. US dollars, as filed.- Total assets
- $2.7m
- Total liabilities
- $286k
- Net assets or fund balances
- $2.4m
- Contributions and grants received
- $3.3m
- Program service revenue
- $29k
- Employees
- 13
- Volunteers
- 449