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DEC 21 '94 05:14PM OGDVN PfMECTS ENVIRONMENTAL DPT Dec 21 ,94 12:48 Nop.1r/9 P.01 <br /> STIL7 OF 04^iFORNIA—ENWRONMENTAL'FROTE' N.GFACY - PETE WILSON.GOFo•110r <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD-- <br /> CENTRAL VALLEY REGION <br /> 3443 ROUTIF,R ROAD,SUtiE A . } <br /> SAOF"ENIO,(:A, 95327.3099 <br /> PHONE; (9 1$)265-3000 <br /> FAX. (916)255.3016 <br /> 20 December 1994 Pam4r"brand fax iransmhral memo 767 Far par. Z <br /> • "Lp0 ,7.Sp''W , Frvw+ b /�rI G✓YGIOC <br /> o ria,arc <br /> Ms. Caroline G.Nagge <br /> Ogden Projects, Inc.. n `2o1/86Z—t{-/67 "9/6/z-SS—�D/S <br /> 40 Lane Road <br /> P.O,Box 2615 <br /> 1'airfreld, NJ 07007-2615 <br /> STOC%TON SOILS MATMENT•RACt•LrTY--NO FUR AC77ONNOTIF ICA TION <br /> ' <br /> As stated in our letter to Mr.Leon Brasowski of Ogden Martin Systems,.Inc. of 25 �bruary,1993, <br /> work completed to.date indicates that sufficient soil has been excavated from beneath the former <br /> petroleum-contaminated soil waste pile liner to eliminate a threat to groundwater. Ground water <br /> monitoring results submitted by Oeden indicate that beneficial toes of ground water beneath the <br /> former waste pile have not been affected nor tive=ned. <br /> More specifically,results of your monthly monitoring program for monitoring wells MW-1, -Z„73, <br /> and-4 for the period of Juno through November of this year show no constituents of concern <br /> above quandration limits, with the exception of 2.1 m2/1 TRPH reported for September in MW-3, <br /> 79 µg/l TPH-D reported for.Pune in MW-4, and 72µg/1 TPH-D reported for October in MW-1. <br /> Since B=, TPH-G, and TPH-D were not also detected in MW-3 samples,it appears unlikely <br /> that petroleum-fuel constituents are reflected by The single TRPH result. The two isolated TPH-D <br /> detections were below the taste&odor threshold for diesel in water(100µg/1)indicating that . <br /> beneficial uses are not affected nor threatened. TPH-D has not been found in subsequent.monthly <br /> samples from the same wells. All field filtered samples show lead to be below quantitation limits, <br /> providing additional evidence that lead detections in previous-year samples were likely the result <br /> of lead-containing sediment in those earlier samples,rather than true ground water concentrations. <br /> Basoed on the information provided by Ogden and your consultant, Kieinfelder Inc.,Board staff, <br /> has determined that appropriate response actions have been completed, that acceptable remedial <br /> practices were implemented, and that, at this time,no further investigation,remedial or removal <br /> action, or monitoring is required at the Ogden Soils'Treatment Facility silt, 1900 Navy Drive <br /> (a.k.a. 1401 Fresno Street), Stockton. This finding will be noticed in the agenda for the Regional <br /> Water Board's 27 January 1994 meeting. <br /> Nothing in this determination shall constitute or be construed as a satisfaction or release from <br /> liability for any conditions or claims arising as a result of past,current. or future operations at this <br /> location. Nothing in this determination is intended or shall be construed to limit the rights of any <br /> parries with respect to claims arising out of or relating to deposit or disposal at any ocher location. <br /> of substances removed from the site. Nothing in this determination is intended or shall be. <br />