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Understanding Water Quality

Water Quality Data

EPA's STORET Website

EPA's STORET Website

All of DHEC's water quality monitoring data is housed in EPA's STORET database. STORET can be accessed through the EPA website.

The EPA Modernized STORET database contains DHEC data from 1999 forward.  When looking for DHEC surface water quality data in Modernized STORET be sure to look under organization ID 21SC60WQ_WQX.

If you need assistance downloading data from STORET, text instructions are available. Please be aware that due to the time it takes for data to be quality assured and uploaded into the database, there may be up to a 2-year lag time in available STORET data.

If you have questions about your local surface water quality, your Watershed Manager can help you.

Bureau of Water . Phone: (803) 898-4300 . Fax: (803) 898-3795 . Contact Us