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I ' <br /> �RVICE STATION / MINI-MA <br /> Service Station 1 Mini-Mart: On-going project under the approval and oversight of the Amador County <br /> Environmental Health Department, involving In Situ bioremediation ofDiesel/BTEX impacted soil and <br /> tgroundwater. The tables reflect a continous decrease in TPH concentrations while reporting fluctuating <br /> !enumerations of heterotrophic and selective.hydrocarbon degrading organisms as the substrate <br /> bioavailability increases and decreases due to groundwater fluctuation as a re-occuring source. No <br /> exogenous oxygen supplementation is being provided while maintaining effective aerobic microbial <br /> populations. <br /> SII <br /> T=0 T=45 T=79 T=152 <br /> BENZENE ND 19 13 12 <br /> TOULENE 370 ND ND ND <br /> ETHLYBENZENE 830 27 ND 1.9 <br /> XYLENES 12000 110 79 81 <br /> DIESEL 1 200 1 69 1 81 37 <br /> T=0 T=18 T=46 T=76 T=115 T=152 <br /> GENERAL 1 4.1 1 528 1 54 68 2.8: 1 22.5 <br /> SELECTIVE I 2.8_L_ 72 1 22.4 1 48 1 1.3 1 6'.1 <br /> AEROBIC MICROBIOLOGICAL EVALUATIONS <br /> 600 i ! <br /> I <br /> 500 i� 528 <br /> .� <br /> 400 j 0 GENERAL <br /> y � <br /> LL 300 + ^SELECTEVE <br /> V <br /> iI <br /> 200 , <br /> f i � <br /> i 100 1 <br /> 72 54 68 2:8` 22.5 <br /> I{ <br /> 6.1 <br /> 1.37 <br /> T=0 I'iT=18 T=46 T=76 T=115 T=152 <br /> DAYS ' <br />. k <br /> I II i <br /> TPH TESTING (8015m) <br /> i 200 200 <br /> 180 r <br /> F z 160 <br /> 140 <br /> ' ~ I <br /> 120 <br /> z 100 i 81alE$EL' <br /> LU 80 -, 69 <br /> O 60 <br /> v 40 * 37 <br /> 20 <br /> 0 <br /> i <br /> T=0 T=45 T=79 ' T=152 <br /> DAYS <br /> �I <br />