Groundwater Treatment for the Removal of Arsenic and Uranium
Tuesday, December 4, 2018: 1:50 p.m.
N119/120 (Las Vegas Convention Center)
Ortega Oaks is a 25 acre parcel recreational vehicle (RV) campground located on Ortega Oaks Highway halfway between San Juan Capistrano and Lake Elsinore in Riverside County. The well water at this site has an Arsenic concentration of approximately 16 ug/L and Uranium of 39 pCi/L . Both contaminants exceed the federal drinking water MCL’s of Arsenic of 10 ug/L and Uranium of 15 pCi/L as well as California State limits.
In order to protect the campground’s residents’ health, a treatment system consisting of a selective media selective for both arsenic and uranium was installed in 2016 to remove Arsenic and Uranium to be below their respective MCLs.
This paper discusses how the system was conceived, built, certified to state standards, and installed. Results from the first two years of operation are discussed along with how the system was validated and accepted by the state. The first lot of spent media has been disposed as TENORM waste at the Clean Harbors disposal site in Buttonwillow, CA.