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.� California Regional Water Quality Control Board <br /> l\- Central Valley Region <br /> v Karl E.Longley,ScD,P.E.,Chair <br /> Linda S.Adams Arnold <br /> Sacramento Main Office viremryJor 11020 Sun Center Drive#2O0,Rancho Cordova,California 95670-6114 Seh Gowrovernor <br /> negger <br /> Environmental Phone(916)4643291 •FAX(916)4641645 G <br /> Protection <br /> h"p://vnvw.waterbowds.ca.gov/centralvalley <br /> 7 October 2009 <br /> Mr. Steve Osborn <br /> Kinder Morgan Energy Partners <br /> 1100 Town & Country Road <br /> Orange, CA 92868 <br /> WORK PLAN TO CONDUCT ADDITIONAL ASSESSMENT OF PETROLEUM-AFFECTED <br /> GROUNDWATER, KINDER MORGAN ENERGY PARTNERS, L.P, 2947 NAVY DRIVE, <br /> STOCKTON, SAN JOAQUIN COUNTY <br /> Staff of the Regional Water Quality Control Board, Central Valley Region (Central Valley <br /> Water Board) reviewed the 29 September 2009 Work Plan to Conduct Additional Assessment <br /> of Petroleum-Affected Groundwater(Work Plan) submitted by LFR, Inc (LFR) on behalf of <br /> SFPP, L.P., operating partnership of Kinder Morgan Energy Partners (KMEP) for the KMEP <br /> terminal at 2947 Navy Drive in Stockton (Site). Central Valley Water Board staff requested the <br /> Work Plan in our 12 May 2009 letter and discussed the work with KMEP during a <br /> 17 June 2009 meeting. <br /> Our 12 May letter observed that none of KMEP's monitoring wells are screened in the C or D <br /> zones and therefore provide no vertical delineation of the groundwater pollution. Central Valley <br /> Water Board staff requested a meeting to discuss additional investigation to address this data <br /> gap. During the meeting, KMEP concurred that the plume at the Site is not vertically <br /> delineated and agreed to prepare a work plan for one deep boring. <br /> Groundwater bearing zones underlying the Site are divided into four progressively deeper units <br /> designated as the A, B, C, and D zones. The Work Plan proposes to install two monitoring <br /> wells; one in the B zone and one in the C zone in the vicinity of SP/M-9 at total depths of <br /> 30 and 60 feet below ground surface (bgs), respectively. SP/M-9 is closest to KMEP's <br /> manifold area, the acknowledged source area for petroleum hydrocarbons that emanate from <br /> the KMEP facility. KMEP's wells, including the proposed wells, are located on property leased <br /> by another petroleum company. There are two monitoring wells at the facility, SP/M-7 and <br /> SP/M-8, that have screens that extend into the B zone. These wells, however, are located <br /> about 100 feet to the west and east of monitoring well SP/M-9- <br /> The proposed wells will be developed and sampled about 24 hours following installation. <br /> Performance of the field work will be contingent on obtaining access agreements with the <br /> property owner, the Port of Stockton. <br /> California Environmental Protection Agency <br /> 0 Recycled Paper <br />