Little Falls Creek at the First Pedestrian Bridge
Historical Water Quality
Met water quality standards less than 60% of the time
This status is based on the latest sample, take on September 6th, 2023 Little Falls Watershed Alliance updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on September 7th at 9:41 PM.
Little Falls Creek at the First Pedestrian Bridge is sampled Weekly from June 1st to September 15th
About Little Falls Creek at the First Pedestrian Bridge
Source Information
Little Falls Watershed Alliance has trained volunteers monitor water quality at several locations in the Little Falls Watershed, a sub-watershed of the Potomac. Monitoring occurs every other week from July through mid-September. Parameters to be monitored include levels of E.Coli, pH, and temperature. The samples are processed by the Anacostia Riverkeeper water quality lab. The primary parameter of concern is E. coli, a fecal coliform. E. coli is measured in terms of the Most Probable Number /100 ml water and high levels are an indicator of fecal contamination by warm-blooded animals like birds and mammals. The MD Primary Contact Water Quality Standards are as follows: • E. coli single sample value = 410 MPN/100mL • E. coli geometric mean = 126 MPN/100mL The Little Falls and Willett Branch are rated against these values. PASS indicates the E. coli single sample value is less than or equal to 410 MPN/100mL. FAIL indicates bacteria counts of over 410 MPN/100mL.
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