Laserfiche WebLink
EXPLANATION <br /> I <br /> MW-6 Monitoring well with groundwater level 9 MW-9 I <br /> 14.10 measured on May 2,2001 in feet above mean sea level I Q <br /> B 4.9k0.5" I O <br /> T <0.5 K <br /> Analytical results of groundwater samples reported In micrograms E <0.5 <br /> 8 1.6 per liter.Only detected constituents are listed. X <0.5 <br /> T <0.5 B=benzene,T=toluene,E=ethylbenzene,X=xylenes, PAHs: I O <br /> E - <0.5 TPHd=total petroleum hydrocarbons quantified naphthalene 0.7 I = <br /> X 10.5 as diesel(with silica-gel preparation). I <br /> TPHg _130 TPHg=total petroleum hydrocarbons quantified as gasoline (Cardoza Property) I <br /> TPHd <50 PAHs=polycyclic aromatic hydrocarbons I of <br /> O <br /> PAHs: U <br /> naphthalene 1.4 <br /> LRangondwater -10 <br /> NC=Benzene detection was not confrmed by GC/MS tions B MIN NS(EPA Method 8260 screen)and is a false positive. 001 <br /> `MW-14 <br /> NS=Not sampled during the first semiannual monitoring event <br /> in accordance with the MRP. I <br /> I <br /> R =Well was resampled on May 31,2001 due to the benzene \ �,, o I <br /> detection in the May 2,2001 sample. N I <br /> I <br /> 13.6 Line of equal groundwater elevation in feet above mean sea level !� r <br /> a i <br /> i <br /> 13.5113 <br /> MW-12 MW37 i <br /> MW-5® 13.67zi2 NS <br /> NS MW-6. 6` MW-8 <br /> 13,22 <br /> Former spill area:soil'excavated Chevron <br /> __—_—_—_—_______—_—___—_____—_—_—_—_—_— —___ ____ _—_ and replaced with fill —___—_—_—_ _—_— __—_—_—_--- —_—___— <br /> pipeline <br /> E <br /> Median B 1.6' <br /> B 170 T -0.5 <br /> T 17 'E <0.5 <br /> E 930 B 56 X <0.5 <br /> GRANT LINE ROAD X 45 T 32 TPHg 130 <br /> TPHg 6,400 E 230 TPHd <50 <br /> c TPHd 4,900 X 59 PAHs: - <br /> PAHs: TPHg 1,600 naphthalene 1.4 <br /> Qo naphthalene 240 TPHd 330 <br /> acenaphthene 1.2 PAHs: <br /> fiuorene 4.5 naphthalene 68 <br /> phenanthrene 4.2 acenaphthene 0.2 <br /> pyrene 0.2 fiuorene 0.2 pl�gp R <br /> phenanthrene 0.2 <br /> Approximate <br /> ___________________________________________________________________________ Scale <br /> rn � <br /> GROUNDWATER ELEVATIONS AND <br /> NOTE:Plan adapted from Figure 2 of"Additional Subsurface Investigation"by (Pomba Property) tl ANALYTICAL RESULTS <br /> Western Geologic Resources,Inc„September 1991 and city map provided I MAY 2001 GROUNDWATER MONITORING <br /> by the City of Tracy. I <br /> Corral Hollow and Grant Line Roads Site <br /> Tracy,California <br /> Protect No. Flqure <br /> GEOMATRIX 002463.002.0 3 <br />