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• Semi-annual monitoring of the remaining nine groundwater monitoring wells which have <br /> historically contained levels of contaminants of concern(MW-1, -2, -3, -4, -5, -6, -8, -108 <br /> and-208). <br /> In response to the SJCEHD request dated April 25d', 2011, GTI is proposing the following <br /> revised groundwater monitoring, depth-to-water measurement and sampling schedule to be <br /> effective for the 2011 3rd quarter semi-annual event: <br /> Well Frequency 1Q 2Q 3Q 4Q TPH-G BTEX Depth-to- <br /> Water <br /> MW-1 Annual x x x Intermediate <br /> MW-2 Semi Annual x x x x Intermediate <br /> MW-3 Semi Annual x x x x Intermediate <br /> MW-4 Annual x x x Shallow <br /> MW-5 Semi Annual x x x x Shallow <br /> MW-6 Annual x x x Shallow <br /> MW-101 Stop <br /> MW-201 Stop <br /> MW-7 Stop <br /> MW-107 Stop <br /> MW-207 Annual x x Dee <br /> MW-307 Stop <br /> MW-8 Annual x x x Shallow <br /> MW-108 Semi Annual x x x x Intermediate <br /> MW-208 Semi Annual x x x x Dee <br /> MW-308 Stop <br /> MW-9 Stop <br /> MW-109 Stop <br /> MW-209 Stop Dee <br /> MW-309 Stop <br /> "Please note that the reductions in frequency and constituents are based on consideration of historical data. <br /> Geological Technics Inc. (GTI) would like to request San Joaquin County Environmental Health <br /> Department (SJCEHD) review and approve this proposed revised groundwater monitoring <br /> schedule. Upon SJCEHD approval, the revised groundwater monitoring. schedule will be <br /> effective for the 2011 3rd quarter semi-annual event. <br /> Respf4fUlly SUW. to , <br /> Raynol I. Kablanow II, PhD <br /> PG, CHG <br />