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Califorr'- Regional Water Quality C—itrol Board �.,.f�. <br /> Central Valley Region <br /> Katherine Hart, Chair <br /> ODM. <br /> 11020 Sun Center Drive,#200,Rancho Cordova,California 45 <br /> Matthew Rodriquez (916)464-3291 •FAX(916)464-4645 ® <br /> Edmund C.Brown Jr. <br /> Secretary for http://www.waterboards.ca.gov/centralvalley Governor <br /> Environmental Protection .;AN 17 Z01Z <br /> 10 January 2012 EWRONMENTAL HEALTH <br /> PERMrr/SERVICES <br /> NOTIFICATION OF PROPOSED LEAKING UNDERGROUND STORAGE TANK CASE <br /> CLOSURE, SPINGOLO TRUCKING, 1011 N. BROADWAY AVENUE, STOCKTON, <br /> SAN JOAQUIN COUNTY (RB #390365) <br /> Staff of the Central Valley Regional Water Quality Control Board (Regional Board) is <br /> considering closure of Regional Board Case No. 390365 for the unauthorized release of <br /> petroleum hydrocarbons at 1011 N. Broadway Avenue, Stockton, California. In <br /> December 1986, two `6,000-gallon diesel underground storage tanks (USTs) were removed; in <br /> May 1990, a 500-gallon waste oil UST was removed, and in April 1992, a 2,000-gallon and a <br /> 500-gallon gasoline USTs were removed from the site. Evidence that one or more of the five <br /> USTs had leaked was identified in the soil beneath the USTs. Between 2001 and 2007, a <br /> number of soil and groundwater investigations-and quarterly groundwater monitoring have been <br /> conducted. Groundwater monitoring was conducted on a quarterly basis from April 2006 until <br /> April 2007, with no impacts to groundwater. Regional Board staff sampled a nearby domestic <br /> well in November 2010 with no impacts to groundwater. Based upon groundwater results, <br /> impacts from the release have been shown to remain in the soil and not adversely impact water <br /> quality use or human health and safety at the subject and adjacent properties; No Further <br /> Action related to the former release is being considered by Regional Board staff at this time. As <br /> such, the case will remain open to allow time for affected/interested property owners and other <br /> interested parties to comment on the proposed case. Therefore, if you have any comments <br /> regarding the case or the potential closure of this case, please submit them to me no later than <br /> 15 February 2012 at the following address: <br /> Regional Water Quality Control Board — Central Valley Region <br /> 11020 Sun Center Drive #200 <br /> Rancho Cordova, CA 95670 <br /> Once your comments are received, we will review them to determine the proper forum to _ <br /> address your concerns. If your comments are not received by the specified date, we will <br /> complete our case closure process and proceed towards issuance of a No Further Action <br /> Required letter to the parties responsible for the site as applicable. <br /> Please contact me by phone at (916) 464-4614 or by email at ibarton(a-),waterboards.ca.gov if <br /> you have questions conc no this letter. <br /> James L.L. Barton, P.G. <br /> Engineering Geologist <br /> cc: Adrienne Ellsaesser, San Joaquin County Environmental Health Department, Stockton <br /> Attached Distribution List <br /> California Environmental Protection Agency <br /> ca Recycled Paper <br />