Guidance Document Information
||UV Disinfection Systems for Public Water Supplies
||Disinfection by ultraviolet (UV) light is an option for waterworks to meet the disinfection requirements as described in the Long Term 2 Enhanced Surface Water Treatment Rule. This memo addresses the process design features and controls, approval procedures, waterworks classification, and monitoring and reporting requirements for waterworks that emply UV treatment. The requirements presented in this memo are intended for facilities desiring to obtain UV log-inactivation credit for Giardia lamblia and Cryptosporidium.
This memo also addresses the use of UV equipment in groundwater systems that are not required by the Regulations or the VDH to disinfect.
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Posted On 6/17/2013
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