Laserfiche WebLink
CW Board <br /> C aliforre Regional Water Quality C ,,. <br /> Central Valley Region a <br /> Katherine Hart, Chair <br /> 464-4645 Edmund G.Brown Jr. <br /> 11020 Sun Center D6nj eefi�2�9 FA°�,�9i6�°a,California 95670-6]1 Governor <br /> Matthew Rodriquez httpJ/www waterboards.ca.gov/centralvallcy <br /> Secreraryfor <br /> Environmental Pro(ection RECEIVED <br /> 10 August 2011 AJJG 12 2011 <br /> Mr. Gil Moore ENVINONMENTALHEALTH <br /> P.O Box 529 PENMITISERMES <br /> Wilton, CA 95693 <br /> STREET, LODI, SAN JOAQUIN COUNT R5-2008-0085-013 <br /> DOCUMENT REVIEW, NEW WEST PETROLEUM #1003 (A MI <br /> , CLEANUP AND <br /> 6437 NORTH FLAG CITY SHELL), <br /> BANNER ENERAL NPDES P <br /> ABATEMENT ORDER R5-2007-0709, G <br /> (CASE 391163) ndwater itoring and NPDES Report (Report), <br /> I reviewed the Second from <br /> ou2011 nsultant Advanced nGeoEnv ronmentalI I . 9e6 Ce ort <br /> received 22 July 2011 from Y on 27 and 28 June 2011 (monitoring <br /> states groundwater was sampled <br /> water supply well CSA-31 Well 2, and groundwater extraction bells oW11�4 through EW-96 <br /> s. <br /> fe is towards the east at a gradient of approximately <br /> Depth to water varied from 11.55 feet below ground surface ( 9 ) <br /> Groundwater flow direction typically <br /> 0.003ft/ft. Maximum grouudLat Petroleum hydrocarbons w erae not detected inymonito il ether ng BE <br /> 23 micrograms per Liter (ug/L). <br /> wells or CSA-31 Well 2. roximately 2,370,400 <br /> The groundwater extraction treatment system (GWETS) treated app <br /> gallons of extracted groundwater <br /> and removed e I Cont of Boa ds of MTBE fro ey Region, General <br /> 28 June 2011 and 9 Influent GWETS <br /> Order No. R5-2008-0085, Waste Discharge Requirements(R5 2�Discharge <br /> 85; to Surface Waters o <br /> Groundwater from Cleanup of petroleum Fuel Pollution (R - per Liter u IL for MTBE in June <br /> ed to a maximum 23 ug/L for <br /> concentrations have declined to an average 3.2 micrograms p ( g <br /> roved rebound testing from 26 April 2011 <br /> 2011, while operating extraction well concentrations have rope <br /> MTBE (EW-96)• The GWETS was shutdown for app Total petroleum hydrocarbons as <br /> to 25 May 2011, and from 26 May to 28 June 2011). <br /> no <br /> t <br /> gasoline (TPHg), benzene, toluene, <br /> electebenzened monthly during the reporting ngperiod. Recehing <br /> influent treatment system sample <br /> watersbioassays for <br /> Rrre recommends: reported a 100% Fathead minnow survival for acute <br /> analysis. The Rep <br /> Conclusion of GWET remediation due to asymptotic levels of petroleum hydrocarbons, <br /> Suspension of groundwater monitoring, <br /> Consideration of the site for clam annually, <br /> sure, and <br /> Evaluate the monitoring program <br /> Destruction of monitoring and remediation wells. <br /> California Environmental Protection Agency <br /> ¢a Recycled Paper <br />