EASTON, MARYLAND — On Aug. 21 ShoreRivers announced that its Swimmable ShoreRivers program earned Tier III status from the Maryland Department of the Environment and the Chesapeake Monitoring Cooperative, after lab proficiency testing and a field audit.

Tier III is the ceiling. Volunteer-collected bacteria data can now be used to declare a waterway impaired — the designation that triggers regulatory attention. That matters more here than almost anywhere. Most Talbot County waters have no designated public beach, and no public beach means no mandatory state bacteria monitoring. For a great many creeks in this county, these volunteers are not the best available data. They are the only data. As of last week, an Oxford or St. Michaels creek can be listed as impaired on numbers gathered by a neighbor with a sample bottle.

Nearly 70 SwimTesters worked 55 sites weekly from May 21 through Labor Day across the Choptank, Miles, Wye, Chester and Sassafras, plus Eastern Bay and the Bayside Creeks. ShoreRivers posts those weekly results in English and Spanish — shorerivers.org/swim and a Spanish page at shorerivers.org/swimmable-shorerivers-espanol — with bilingual signs at public monitoring sites, per the group’s May 2026 season announcement, which said results would be available “once again” in both languages this year. Chester Riverkeeper Annie Richards has described bilingual communications as a four-year build, not a first-time 2026 switch.

The Tred Avon is not named in that five-river list. The third annual Bacteria Blitz, with 49 participants, found 47 percent of samples passing Maryland’s recreational water quality standards. Slightly more than half failed.

On the land side, in April the Eastern Shore Land Conservancy closed a donated easement on 126 acres at Dorsey Farm on Leeds Creek, a Miles tributary — including 6,823 linear feet of water frontage, with a living shoreline restoration underway. Bacteria in a creek is a land-use outcome. A statewide monitoring tier does not erase a failed Talbot creek.