Here are the results for WQM testing on July 17th!! Please note that water quality status for all Upper Potomac sites are historical and may not be indicative of current conditions. As always, this data may change after a heavy rainfall as stormwater runoff contributes heavily to bacteria concentrations by washing trash and pollutants into storm sewers which may overflow and dump into our river. Typically, if a site gets more than an inch of rain, it’s recommended to wait at least 48 hours before coming into contact with the river. 🌧️ Make sure to download the Swim Guide app to see the most current water quality data!
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