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collected from the Boyett Petroleum Site history
<br /> monitorin f419�.Main St.,Manteca)
<br /> MW-7, MW-1 p MW-11. wells. MTWas Page to of to]l
<br /> 7, MW-l0, and The et3ncentBrarion Qdetected in the
<br /> 2004 M , and M W_11 decreased relative to the
<br /> rn the groundwater sample$ collected from
<br /> TBE was not detect groundwater sam 1
<br /> gjaundwater sam at or above the Iabora o evious sarn A es collected from
<br /> decrease from pies collected from piing event conducted
<br /> m the concentrations detected in the4W� forted detection on March
<br /> the previous sa R, MW-g, MW. limit of 0,5 ug/, in the
<br /> monitorin mpltng event. Groundwater elevations decreasa �' and EW_1, which
<br /> calculated
<br /> event(March 2004 mples collected from these indicated a
<br /> ed using water level ) An estimatedoundwater ed by 2.28 wells during
<br /> data from gradient of0. feet relative to the previous
<br /> tngnitonng Wells 0217 ft1 tou.ards the south was
<br /> ��ePtember 28, 2004 MW-2, MW-6
<br /> 3, MW-4R , a Condor re , and MW-8.
<br /> wells MVV_ ' MW-6 throw h presentative measured the
<br /> 3, MW-4R g MW-I 1, and E depth to water at
<br /> were , MW_8, MW-9, MW_ W-l3 and collected monitorin
<br /> well, dry. MW_10 purged d 1 I, and EW_ groundwater sa g wells MW_2,
<br /> Laborato dry and did not recover, so a l Monitoring mples from monitoring
<br /> than MTBE n'analytical results indicated that BT g wells a's MW-6
<br /> and TpH_ were groundwater sample was not collected d MW-7
<br /> groundwater samples co!]ected not detected bo constituents,
<br /> samples collected from at or above the laborato asoline ox from the
<br /> from Ygenatesladditives other
<br /> samples from from MW-9, MW_ the monitoring wells. laboratory reported detection limits in the
<br /> MW-11, and EW- MT$E was detected in the
<br /> conducted on J MW-g, MW-11 l The conc
<br /> June 24, 2004. , and EW l entration of MTBE in the groundwater
<br /> of 0.5 MTBE w increased relative to the
<br /> pglL in the groundwater sam as not detected at or groundwater
<br /> grad3ent was not calculated for the third
<br /> les collected `above the laboratory
<br /> sampling
<br /> event
<br /> water for de from MW-3 ry reported detection limit
<br /> depth to water measurements. Quarter monitorin ' MW_4R, and MW-8. A
<br /> nearly straight ,,,,Water
<br /> g event. On! fo
<br /> well I O Three of the sells Y our shallow groundwater
<br /> was perched purged dry and did (MW-3, MW-4R wells had sufficient
<br /> groundwatershedelevation ater and the depth to water of recover. It is Iikel ' and IVIW_ are
<br /> in the vicinitymeasurement may y' therefore'
<br /> that�the water
<br /> he
<br /> of]14W_I0 Y not have accurate!
<br /> On December 29, 2004 Y reflected the
<br /> groundwater Sam a Condor representative
<br /> Laboratorypies from monitoring wells Was on
<br /> analytical results ' MW-2 site to measure
<br /> MTBE, and TI>H-G of de ted that BT , MW-3' MW-4R, MW_ Water levels and
<br /> groundwater samples were not detected EX constituents �' through MW_ collect
<br /> pies collected at OT above , gasoIrne oxygenates/additives other than
<br /> samples collected fro from the monitorin the laboratory reported
<br /> or above the laborat m MW-4R, I1�IW.7, M g wells. MTBE detection limits in the
<br /> �, MW-10 was detected izr the
<br /> MW--2, MW--3, MW-6,
<br /> reported detection limit , MW`l 1, and EW_ groundwater
<br /> monitorin , and r 2,04 °F 0•S µg/L in the 1 MTBE was not detected at
<br /> b'event (Se to Groundwater elevations increased oundwater samples was calculated A tuber 2004). ,qu esti ples collected from
<br /> using water level data from mated by 3.28 feet relative to the In
<br /> monitor :groundwater gradient of 0.0036 Previous
<br /> ring wells MW-2, MW-6, and MW-S towards the north
<br /> 1
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