Friends of the Shenandoah River

What Friends of the Shenandoah River does

Friends of the Shenandoah River (FOSR) is a volunteer-based, non-profit scientific organization headquartered in Winchester, Virginia, founded in 1991 and dedicated to the preservation and protection of the Shenandoah River and its tributaries. Its core operational activity is a citizen-science water quality monitoring program, most visibly the KNOW BEFORE YOU GO! Summer E. coli Testing Program launched in 2017, which conducts weekly accredited E. coli testing at 14 public access sites spanning four Virginia counties (Clarke, Warren, Page, and Shenandoah). Results are published via an ArcGIS-based WaterWatch Map dashboard, a downloadable historical archive dating to 2017, USGS flow gage integration, and on-site QR codes that link river users to real-time readings.

FOSR's underlying technical asset is an in-house accredited laboratory implementing scientifically validated E. coli testing procedures, complemented by digital infrastructure (ArcGIS Online dashboard, downloadable datasets, QR-coded monitoring locations). The organization has accumulated approximately 35 years of continuous watershed monitoring data, which underpins its role as the principal source of real-time, site-specific E. coli information for recreational users of the Shenandoah River, including swimmers, tubers, kayakers, anglers, and waders. The organization also reports broader environmental hazards such as potential harmful algal blooms (HABs) to the Virginia Department of Health and contributes data to academic research collaborations (e.g., Christova Lab at George Mason University).

The business model is donation-funded: FOSR provides all water quality data and services free of charge to the public and is sustained by voluntary community contributions solicited through its website, email newsletter, and Facebook presence. There is no commercial pricing, no disclosed grants pipeline, no disclosed revenue, and no institutional investors; governance is handled by a Board of Directors. The primary customer segment is the general public engaging in river recreation, with a secondary academic/research audience consuming compiled water-quality datasets.

Name

Friends of the Shenandoah River

Legal name

Friends of the Shenandoah River

Website

https://fosr.org

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

1–10 employees

Short description

Friends of the Shenandoah River is a volunteer non-profit scientific organization that runs the KNOW BEFORE YOU GO! Summer E. coli testing program at 14 public access sites across four Virginia counties, providing free real-time water quality data to river recreation users via an ArcGIS dashboard and on-site QR codes.

Ownership category

akta.pro rank

Product category

Environmental Monitoring Services

NAICS

Testing Laboratories and Services (54138), Environmental Consulting Services (54162), Environmental Consulting Services (541620)

SIC

Services-Testing Laboratories (8734), Services-Commercial Physical & Biological Research (8731), Water Supply (4941)

akta.pro primary industry

Water Resources & Watershed Protection (BPAGAGAK)

akta.pro secondary industries

Water Quality Monitoring (Surface Water, Stormwater, Drinking Water) (EUAHACAC), Watershed/Source Water & Raw Water Quality Monitoring (intakes, reservoirs, groundwater) (EUANAJAH), Water & Drain Monitoring for Environmental Pathogens (Drains, CIP Return, Process Water) (AFALAEAE)

Keywords

• Water quality monitoring
• E. coli testing
• River conservation services
• Environmental data reporting
• Nonprofit scientific monitoring

Headquarters

HQ city

Winchester

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Others

Revenue model

1. Donations and Fundraising: FOSR relies on community donations to fund its water quality monitoring programs. The organization solicits donations through its website with messaging emphasizing that contributions keep the E. coli testing program running.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Friends of the Shenandoah River is a volunteer-run scientific nonprofit that conducts weekly water quality monitoring — primarily E. coli bacteria testing — at public access sites along the North Fork, South Fork, and Main-stem Shenandoah River. It publishes real-time, site-specific testing results through an interactive ArcGIS-based WaterWatch dashboard, QR codes at monitoring locations, and downloadable historical data archives, all provided free to the public to support informed recreational use decisions.

Product overview

Friends of the Shenandoah River (FOSR) offers a unified environmental monitoring platform centered on its KNOW BEFORE YOU GO! Summer E. coli Testing Program. The core offering consists of weekly water quality testing at 14-16 public access sites along the Shenandoah River, combined with an interactive WaterWatch Map dashboard, QR code-enabled monitoring locations, and access to USGS flow gage data. FOSR also provides a historical test results archive, compiled water-quality datasets, and laboratory services for water sample analysis. All services are provided free of charge to the public to support informed recreation decisions.

Differentiator

Problem solved

Functional benefit

Products and services

• KNOW BEFORE YOU GO! Summer E. coli Testing Program Weekly summer water quality monitoring program testing E. coli bacteria levels at 14-16 public access sites along the Shenandoah River watershed, providing real-time data for river recreation users to make informed health decisions.
• WaterWatch Map

Quantifiable outcome

• Provides water quality data at 14 public access sites on the North Fork, South Fork, and Main-stem Shenandoah River

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature1 record

Partnerships

Two partnerships are on record, tiered minor.

• Christova Lab at George Mason UniversityminorStrategic or Co-development Partner · 18 June 2026Research collaboration where the Christova Lab at George Mason University conducted research that led to the discovery of a novel algae species (Limnofasciculus delicatus) in the North and South Forks of the Shenandoah River. FOSR contributed by providing data and sampling context for the research published in Environmental Microbiology Reports.
• Interstate Commission on the Potomac River Basin (ICPRB)minorOthersICPRB reported on the novel algae species discovery in their newsletter 'The Potomac News Reservoir'. Gordon 'Mike' Selckmann, ICPRB's associate director of aquatic habitats, co-authored the research paper.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Surfrider Foundation: National nonprofit running volunteer-driven Blue Water Task Force beach/recreational water-quality monitoring (including E. coli), publishing public results. Comparable mission around recreational water safety, but operates at coast rather than inland rivers.
• Waterkeeper Alliance: Umbrella organization supporting dozens of local Waterkeeper groups (including Potomac and Anacostia Riverkeepers). Comparable grassroots water-quality monitoring philosophy, with broader geographic and policy reach than FOSR.
• Chesapeake Bay Foundation: Larger, established Mid-Atlantic nonprofit focused on Chesapeake Bay watershed restoration, including water-quality monitoring, advocacy, and education. Operates in a broader footprint that encompasses FOSR's Shenandoah sub-watershed.
• Izaak Walton League of America: National conservation nonprofit with a long-running volunteer water-quality monitoring program (Save Our Streams) that publishes bacteria and macroinvertebrate data. Comparable volunteer-led monitoring model at far larger scale.
• Interstate Commission on the Potomac River Basin (ICPRB): Multi-state governmental commission that conducts water-quality monitoring, modeling, and reporting across the Potomac basin and has published research with FOSR data. Functions as a regional incumbent whose mandate overlaps FOSR's.

Direct peers

• James River Association: Virginia-based nonprofit river-conservation organization that conducts water-quality monitoring, runs volunteer programs, and publishes public-facing data dashboards for the James River — directly comparable mission and operating model to FOSR on a different Virginia river.
• Anacostia Riverkeeper: Mid-Atlantic Waterkeeper Alliance affiliate doing volunteer-driven water-quality monitoring (including E. coli testing) and publishing site-specific results for the Anacostia River. Operationally near-identical model to FOSR.
• Potomac Riverkeeper Network: Regional nonprofit that conducts grassroots water-quality monitoring (including bacterial monitoring) on the Potomac River, publishes site-specific results, and runs volunteer sample collection. Closest analog to FOSR's model in an adjacent Mid-Atlantic watershed.

Others

• Virginia Department of Environmental Quality (VA DEQ): State agency that operates the regulatory water-quality monitoring program and issues the drought updates and HAB reports that FOSR references. Not a direct competitor, but a complementary/adjacent authority whose datasets sit alongside FOSR's volunteer data.

Regional players

• Rivanna River Basin Commission: Virginia watershed-focused commission that monitors water quality in the Rivanna basin and produces public data products. Comparable regional scope to FOSR, but in a different central-Virginia watershed.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/friendsoftheshenandoah
• LinkedInlinkedin.com/company/friends-of-the-shenandoah-rvrs

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Friends of the Shenandoah River