Laserfiche WebLink
and the low mobility and toxicity of longer chain petroleum hydrocarbons that <br /> comprise the soil contamination identified at this site. <br /> • Benzene has been detected in only one groundwater sample (boring B4)collected <br /> from temporary well points,and has never been detected in groundwater samples <br /> from site monitoring wells. <br /> • MTBE has never been detected in soil and groundwater samples collected at the site. <br /> • Based on our evaluation of site data and as described in State Water Resources <br /> L Control Board Resolution No.2009-0042,we conclude that no significant benefit to <br /> human health or the environment would be achieved through additional <br /> investigation,monitoring,or remediation at this site. <br /> LNo additional groundwater monitoring events are planned for the site,pending the SJCEHD <br /> review of this request. Upon receipt of a"No Further Action' letter for the site,all groundwater <br /> monitoring wells at the site will be destroyed using proper procedures mandated by the SJCEHD <br /> and RWQCB. <br /> L 8.0 References Cited <br /> Alaska Department of Environmental Conservation. (May 2006). "Biogenic Interference and Silica Gel <br /> L Cleanup,Alaska Department of Environmental Conservation, Division of Spill Prevention and <br /> Response, Contaminated Sites Remediation Program, Technical Memorandum 06-001." NR:ADEC. <br /> Barden,M.J. (2002). "Natural Attenuation for Remediation of Contaminated Sites #571. National <br /> Groundwater Association Short Course."Westerville: NGA. <br /> D.K.Barber P.E. and Associates. (2008). Draft Work Plan for Soil Remediation and Groundwater <br /> Characterization, Western Oil and Spreading,Inc.Acampo Plant Site,Hwy 99N Frontage Road, <br /> Acampo, California. NR:Barber. <br /> Gallardo and Associates. (1999). Report for a Limited Soil and Groundwater Investigation Conducted at <br /> the Western Oil and Spreading Site located at 19256 N Highway 99 in Acampo, California. <br /> NR:Gallardo. <br /> Regional Water Quality Control Board,Central Valley Region. (April 2004). 'Beneficial Use- <br /> Protective Water Quality Limits For Components of Petroleum-Based Fuels." Sacramento: <br /> RWQCB-Central Valley. <br /> LUnited States Environmental Protection Agency. (November 2002). "Ground Water Issue, <br /> Calculation and Use of First-Order Rate Constants for Monitored Natural Attenuation <br /> Studies. EPA/540/S-02/500." NR:EPA <br /> Wagner,D.L.,Jennings,C.W.,Bedrossian,T.L.,and Bortugno,E.J. (1981). Geologic Map of The <br /> Sacramento Quadrangle,California,Scale 1:250,000. Sacramento:CDMG. <br /> Wiedemeier,T.H.,J.T. Wilson,D.H Kampbell,R.N. Miller,J.E.Hansen. (1999). Technical Protocol for <br /> Implementing Intrinsic Remediation with Long-Term Monitoring for Natural Attenuation of Fuel <br /> Contamination Dissolved in Groundwater. San Antonio:. Air Force Center for Environmental <br /> Excellence,Technology Transfer Division. <br /> Wiedemeier,T.H. (2002). Natural Attenuation for Remediation of Contaminated Sites#571. <br /> National Groundwater Association Short Course. Westerville,Ohio. -- <br /> \\Eureka\Projects\2007\007152-WOS\PUBS\rpt\201003241stHalf2OlOGWMR&RFC.doc <br /> 16 <br />