Public Charity

COLUMBIA SLOUGH WATERSHED COUNCIL INC

Based in PORTLAND, OR, COLUMBIA SLOUGH WATERSHED COUNCIL INC operates as a Public Charity. The organization reported $1.0M in revenue, $1.0M in expenses, $493K in total assets for fiscal year 2025. Imperigo tracks 17 reported grant relationships connected to this organization totaling approximately $501K.

EIN: 030456181 PORTLAND, OR Water Resources, Wetlands Conservation & Management NTEE: C32 Latest filing: 2025
Total Revenue$1.0M
Total Expenses$1.0M
Total Assets$493K
Grant Records17
Funding Total$501K
Filing Years2021–2025

Mission

THE COLUMBIA SLOUGH WATERSHED COUNCIL BRINGS COMMUNITY MEMBERS TOGETHER TO ENHANCE THE HEALTH OF THE COLUMBIA SLOUGH AND EXPAND OPPORTUNITIES FOR PEOPLE TO ENJOY THIS URBAN GEM. WE WORK TO IMPROVE WATER QUALITY, BUILD AND RESTORE FISH AND WILDLIFE HABITAT, INCREASE PUBLIC AWARENESS AND ACCESSIBILITY, EMPOWER YOUTH, AND ADVOCATE FOR A HEALTHY WATERSHED. EVERYTHING WE DO IS POSSIBLE THANKS TO THE COMMITMENT OF COMMUNITY MEMBERS AND ENGAGEMENT OF LOCAL AGENCIES, BUSINESSES, AND PARTNER ORGANIZATIONS.

Where $100 goes at Columbia Slough Watershed Council Inc

How Columbia Slough Watershed Council Inc divides every $100 it spends, from its own Form 990 filings, averaged across 9 years.

$69 Programs the work itself
$27 Management running the organization
$4 Fundraising raising the next dollar

Inside the $69 for programs

$30
Stewardship
44% of program spending · Reported in the filing: 572 volunteers; 25 acres; 967 hours of workforce
$19
Events
28% of program spending · Reported in the filing: 99 events; 1,887 participants
$10
Education
14% of program spending · Reported in the filing: 159 lessons; 60 trips

Plus 1 more program. Cost per person served and the full program breakdown are on the full profile.

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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.

Officers & Directors

BOARD CHAIR Adam Reese
DIRECTOR Alexander Staunch
INTERIM EXECUTIVE DIRECTOR Amanda Gallegos
DIRECTOR Blake Hamalainen
DIRECTOR Bob Dolphin
VICE CHAIR Carrie Sanneman

Officer compensation and complete director data available with membership.

Top Grant Purposes

Environment & Conservation
$204,925 7 grants
General Support
$188,592 5 grants
Education
$70,000 3 grants
Fundraising & Sponsorship
$10,000 1 grant
Unspecified
$27,264 1 grant

Financial Trends

Year Revenue Expenses Assets
2025 $1.0M $1.0M $493K
2024 $1.0M $1.1M $536K
2023 $1.1M $906K $485K
2022 $635K $613K $275K
2021 $619K $553K $347K

Between 2021 and 2025, reported annual revenue grew from $619K to $1.0M (+63%), with total assets most recently reported at $493K.

Interactive year-over-year charts and full filing details available with membership.

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