Mission
Works with diverse partner organizations, communities, agencies, regulated industry commercial and recreational users of the Basin, outdoor enthusiasts and concerned citizens in collective stewardship to preserve this ecological wonder.
Public Charity
ATCHAFALAYA BASINKEEPER INC
ATCHAFALAYA BASINKEEPER INC, of PLAQUEMINE, LA, is a Public Charity tracked in Imperigo's IRS 990 database. The 2025 filing shows $426K in revenue, $350K in expenses, $571K in total assets. 13 publicly reported grants to this organization, totaling roughly $692K, appear in IRS filings.
EIN: 510526541
PLAQUEMINE, LA
Water Resources, Wetlands Conservation & Management
NTEE: C32
Latest filing: 2025
Total Revenue$426K
Total Expenses$350K
Total Assets$571K
Grant Records13
Funding Total$692K
Filing Years2020–2025
Where $100 goes at Atchafalaya Basinkeeper Inc
How Atchafalaya Basinkeeper Inc divides every $100 it spends, from its own Form 990 filings, averaged across 8 years.
$82
Programs
the work itself
$18
Management
running the organization
$0
Fundraising
none reported
No fundraising costs are reported. That often means fundraising runs through a separate affiliated organization that files its own return.
Inside the $82 for programs
$82
On-going monitoring of basin for illegal activities or activities damaging to basin environment
Source: Form 990 filings with the IRS, latest fiscal year 2025. Shares are from the organization's reported expenses. Data by Imperigo; not affiliated with the IRS.
Sample Grants Received
PROVIDE GENERAL OPERATING SUPPORT
$200,000
SUSTAINABLE ENVIRONMENT
$100,000
UNRESTRICTED
$34,851
WATER RESOURCES, WETLANDS CONSERVATION & MGT
$18,100
General operating support
$10,000
Showing up to 5 of 13 total records — full history available with membership.
Officers & Directors
BOARD CHAIR
Charles Fryling
BOARD MEMBER
Dan Collins
TREASURER
David Brown
EXECUTIVE DIRECTOR
Dean Wilson
BOARD MEMBER
Gary Shaffer
BOARD MEMBER
Rosa Acheson
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $426K | $350K | $571K |
| 2024 | $478K | $320K | $498K |
| 2023 | $307K | $186K | $335K |
| 2022 | $133K | $167K | $215K |
| 2020 | $239K | $171K | $256K |
Between 2020 and 2025, reported annual revenue grew from $239K to $426K (+78%), with total assets most recently reported at $571K.
Interactive year-over-year charts and full filing details available with membership.