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' ®' Eouuxo O.enowx JR. <br /> aov,w,on <br /> Manxew Roo:au<z <br /> emxw�ionrnai:i� wnc[rox <br /> Water Boards <br /> Central Valley Regional Water Quality Control Board <br /> 24 July 2018 <br /> Robert Kupka <br /> Lodi Airport Corporation <br /> P.O. Box 10 <br /> Acampo, CA 95220 <br /> WORK PLAN RESPONSE, GOLDEN EAGLE AVIATION (LODI AIRPORT), 23987 HIGHWAY <br /> 99, ACAMPO, SAN JOAQUIN COUNTY, CASE#391083 <br /> Central Valley Regional Water Quality Control Board (Central Valley Water Board) reviewed the <br /> Work Plan for Additional Soil and Groundwater Site Assessment(Work Plan) received <br /> 19 July 2018, submitted on your behalf by Stephen G. Muir Consulting Geologist& Geophysicist <br /> (SGM) for the Golden Eagle/Lodi Airport unauthorized petroleum release at 23987 N. Highway <br /> 99 in Acampo (Site). <br /> In the Work Plan, SGM proposes to install one (1) groundwater monitoring well, and advance <br /> seven (7) 10-foot hand-auger soil borings and complete them as shallow soil gas wells. SGM <br /> also proposes to complete a sensitive receptor survey. The proposed well/boring scope of work <br /> is summarized in the table below. <br /> Well Soil Sampling Soil Gas <br /> Well/ Total Screen/ Sampling <br /> Boring Location Depth Well Type Probe <br /> Depth Depth Analysis Analysis <br /> ftb s ftb s ftb s <br /> HA/SG1 46ft NW of MW-2 <br /> HA/SG2 Near V100 TPHav, TPHg, <br /> H A/SG3 Near V101 BTEX, <br /> 10 Soil Gas 5.5 5, 10 BTEX, MTBE, <br /> HA/SG4 15ft SE of VS <br /> MTBE, naphthalene, <br /> HA/SG6 Near V7 naphthalene IPA,oxygen <br /> HA/SG7 Near V3 <br /> HA/SG5 Near P4 10 Soil Gas 5.5 2.5. 5. 10 <br /> TPHav, <br /> 15ft 5. 10 BTEX, <br /> MTBE, <br /> Ground- screen na hthalene <br /> MW-4 25ft S of MW-1 120 water within 5ft <br /> Monitoring saturated intervals <br /> zone from 15ft Lithology — <br /> to TD <br /> TPHg=total petroleum hydrocarbons as gasoline;TPHav=TPH as aviation gas;BTEX--benzene,toluene,elhylbenzene,xylenes; <br /> MTBE=methyl tert butyl ether;IPA--isopropyl alrwhol;ft=feet;bgs=below ground surface;TD=total depth <br /> KAnL E.LOROLEY SO. P.E.,cx.UR I PAIRICK PULUPA,E60.,EXICUME 01MER <br /> 11020 Sun Center Drive 1200,Rancho Cordova,CA 95670 I w ,wewwwde.ee.9ovk"Iralvalley <br /> (j n cram Dorn <br />