Laserfiche WebLink
$moi.-y r._'.5i i.iVl............:ii+C-�?l1.f:-_i[S.iAY-•yam-x».v�u�r�i..�.Y...s.n i!' ..r....�.+«_�_.w�-�_-..._..�...t._.....-�--. -... ...- <br /> V. Local Agency Representative Data <br /> Name: Donna Heran, REHS Title: Director <br /> Signature: Date: June 24, 2013 <br /> VI. Central Valley Regional Water Quali Control Board. RB Notification <br /> Date Submitted to RB: January 18, 2013 Response Date. February 7, 2093 <br /> RB Staff: James L.L. Barton, PG Response: Concurrence <br /> Title: Engineering Geologist <br /> VII.Additional Comments, Data, etc. <br /> Human health risk information is in Work Plan for Evaluation of MTBE Migration and Soil Gas Survey(April 2009),where <br /> SFBRWQCB's ESLs are utilized; elevated soil and groundwater contaminant concentrations exceed the ESLs for <br /> commercial sites with groundwater as a drinking water source; consultant addresses by noting that the plume of impacted <br /> groundwater is well delineated, shrinking in size and concentrations. Also,water supply wells in the area are completed <br /> beneath the Corcoran Clay, have been sampled and analyzed; and are inferred to be isolated from the impacted <br /> groundwater. ` ' <br /> This document and the related CASE CLOSURE LETTER shall be retained by the lead agency as part of the official site file. <br /> Page 3 <br />