Clean Streams Rivers and Lakes

Nonprofit profile at a glance

EIN
861647486
IRS 990-EZ coverage
2022–2025
Forms available
Form 990-EZ 2025, Form 990-N 2021
Location
Fairfax, VA, USA
Phone
5714366327
Rating
78
Verdict
SUPPORTED
Rating confidence
Moderate
Sector
Water Resource, Wetlands Conservation and Management

Official website

Reported finances

Revenue
$63,145
Expenses
$32,873
Assets
$7,644
Liabilities
$4,172

Source: IRS Form 990-EZ. Selected filing: tax year 2025. Amounts in USD.

Leadership & pay

3 people listed

Executive titles in this filing

  • Matthew J Rainoff (President/Treasurer)
  • Mark L Tull (Vice President)

People named in this filing

  • Matthew J Rainoff (President/Treasurer)
  • Mark L Tull (Vice President)
  • Jeffrey S Stahle (Secretary)

Selected names, not a complete roster or a statement of current roles. Open leadership details for the complete filed list.

Source: IRS Form 990-EZ. Selected filing: tax year 2025. Names and roles reflect this filing, not necessarily current officeholders.

Overview

Mission

Research, Education, Engineering, Manufacturing, Remediation and all other activities related to Achieving Safer Cleaner Water Quality on our Planet Earth.

What it reported doing in 2025

Continued in our fourth year of field testing combinations of aeration equipment, diatom promoter, mined calcium silicate, other natural phosphorus reducing products41258 and beneficial bacteria to reduce pollution in ponds. Also supplied to some pond owners safe selective herbicide they requested to reduce weeds. Provided consulting and excess nutrient education to many pond owners for no charge.

Operating model

Revenue model
Earned-program. 97% of the money available for current operations came from fees and other program revenue.
Distribution model
Cannot be determined from the filing. The filing does not provide enough consistent spending detail to tell whether the nonprofit works directly or through others.

The verdict

SUPPORTED - A large share of available resources goes toward mission work and the filed numbers largely add up. Some filed totals do not add up and revenue has declined or grown slowly.

Rating breakdown

  • Financial Efficiency: 78
  • Transparency & Controls: 82
  • Sustainability: 55
  • Growth: 60

Detailed rating inputs

Financial Efficiency

  • Mission deployment rate: 65.3%; rating input score 65
  • Program expense ratio: 100%; rating input score 100

Transparency & Controls

  • Consistency checks: 100%; rating input score 100; 51st percentile among comparable filings
  • Major donor itemization: Limited

Sustainability

  • Operating margin: 47.9%; rating input score 89; 89th percentile among comparable filings
  • Total-asset coverage ratio: 0.23; rating input score 20; 20th percentile among comparable filings
  • Liabilities to assets ratio: 0.55; rating input score 7; 7th percentile among comparable filings
  • Officer compensation ratio: 0%; rating input score 56; 56th percentile among comparable filings

Growth

  • Program expense growth: 6.9% per year; rating input score 100; 65th percentile among comparable filings
  • Revenue growth: -2.2% per year; rating input score 0; 42nd percentile among comparable filings
  • Asset growth: 16.3% per year; rating input score 100; 80th percentile among comparable filings

Details

  • Where the money goes: 65.3% of revenue deployed · 100% of spending went to programs
  • Governance: Filed governance answers
  • Accomplishments: 1 filed program accomplishment · $41K in reported program spending
  • Leadership: top reported pay $0 · 3 people listed
  • Consistency: 8 of 9 current checks pass · 1 finding to review
  • Schedules: 2 filed schedules
  • Filing history: 4 filing years from 2022 to 2025
  • Contacts: How to reach this organization
  • Grant readiness: Federal tax and exclusion status, award history, and grant-maker relationships.
  • People: Everyone the filings name, and which of them the filings identify by more than a name.

Key Signals

Signals prioritize questions for review. They are not findings of misconduct.

  • Moderate — Transparency & Controls: Part III program expenses within total did not reconcile in the filed values.
  • High — Growth: Revenue growth scored 0/100.
  • High — Sustainability: Total-asset coverage ratio scored 20/100.
  • High — Sustainability: Liabilities to assets ratio scored 7/100.
  • Review — Sustainability: Officer compensation ratio scored 56/100.