2026 Season Live
New season results published — 314 observations across 73 stations · updated through September 24, 2026 Explore findings ↓ |
Citizen Science · Water Quality Program
AISC volunteers track bacterial water quality across the Amelia River, Cumberland Sound, Egans Creek and the wider St. Marys River watershed — 314 field observations at 73 stations across Nassau, Camden, Charlton and Baker counties in the 2026 season.
Click to view the high-res map
Y-axis: observations logged per month — colours show the rating mix of that month’s tests.
Dataset window April–October 2026 · field observations logged April 2 – September 24, 2026 · sampler coverage varies with tides, weather and volunteer availability.
What the 2026 data shows
The same rain that fills the marinas also flushes the creeks — the data shows exactly where and when it matters for boaters, paddlers and swimmers.
Open-water ICW stations scored Good whenever results were logged — reassuring news for sailors, kayakers and swimmers who use the primary river corridor. AISC’s coastal fleet also samples the Amelia River channel, Cumberland Sound, Egans Creek entrance, Jolly River and Kingsley Creek on its monthly coastal run.
These rainfall-driven, nonpoint-source spikes are exactly why monthly monitoring matters. Grab samples show creeks can change quickly after storms — the open ICW corridor clears fastest.
AISC’s 10th coastal station monitors the Old Town living shoreline and oyster reef restoration — a working field partnership with the University of North Florida (UNF) and St. Marys Riverkeeper. The station links our sampling data to an active habitat-restoration project on the Amelia River.
AISC’s own stations
Launched in 2026, the club’s coastal program covers the Amelia River, Cumberland Sound, Egans Creek, Jolly River and Kingsley Creek in one coordinated monthly run — most recently July 14, 2026. Click a station to filter the explorer.
Coastal fleet bacterial samples are lab-processed and merge into the full dataset as results return. Station #10 supports the Old Town living shoreline restoration with the University of North Florida and St. Marys Riverkeeper.
Station spotlight
Tap a card to filter the explorer down to that station’s season.
Understanding the ratings
Every sample is a single grab sample of estuarine water, tested for enterococci-style bacterial indicators and scored against recreational thresholds.
Within pristine EPA recreational thresholds — primary-contact recreation (swimming, paddling, water play) indicated as safe at the time of sampling.
Elevated bacteria. Typically rainfall-driven and short-lived; treat creeks with caution and favor the open ICW corridor for contact recreation.
Above recreational thresholds — avoid water contact at that station until conditions reset. Common after storms in upstream tidal creeks.
What is CFU? Colony-forming units per 100 ml — a count of viable bacteria grown from a single water sample. Higher counts mean more bacteria, not a specific health diagnosis.
Read trends, not one dip. Ratings measure one moment in time. The 2026 dataset combines 59 field days; multiple clean runs at a station tell a stronger story than any single sample.
Interactive data explorer
Search by station, watershed, county or sampler — filter by watershed category, county and rating, then page through the season or download the whole dataset. The counter updates instantly.
| Station | Rating | Watershed | County | Sampler |
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Field team spotlight
Twenty volunteer samplers logged the 2026 season — thank you to every one of them.
Runs the club’s river quality monitoring program — organising the monthly sampling runs, the 20-volunteer roster and the lab results behind every observation on this page.
Volunteer sampler on the 10-station AISC coastal fleet — Amelia River, Cumberland Sound, Egans Creek entrance, Jolly River and Kingsley Creek — plus the Station #10 living shoreline partnership.
Long-time water-quality volunteer, on the water for the club’s monthly river sampling runs.
Volunteer sampler across the club’s North Florida / Southeast Georgia monitoring network.
20 samplers · 59 field days · 314 observations · 73 stations · 4 counties — thank you all.
Sampling crews head out monthly on club boats — no lab experience needed, and boat crew and paddlers are just as welcome as samplers.
Volunteer to crew on the next run
On the dock — sample collection
Volunteers on a sampling run
Field equipment — bacteria sample prep
April 2024 monitoring
Samples are collected on monthly river runs; dates shift with tides, weather and volunteer availability. Click a photo to view it full-size.
Timely bacterial results so members can choose where and when to sail, paddle and swim.
Long-running station records support oyster-reef and living-shoreline restoration partners.
A decade of club records tracks watershed health season over season, storm over storm.
Sampling maps, field-testing guides and the full 2026 dataset (CSV).
2026 Comprehensive Watershed & Coastal Monitoring Dataset (April–October 2026) · Partners: University of North Florida · St. Marys Riverkeeper · Questions? ameliaislandsailingclub@gmail.com