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Table C.2 <br /> Historical Groundwater Concentration Data <br /> SFPP,LP-HOLT SITE <br /> SAMPLING TPH-E TPH-P BENZENE TOLUENE ETHYL- TOTAL COMMENTS <br /> WELL DATE (DRO) (GRO) BENZENE XYLENES <br /> Without Silica Gel <br /> (M/D/Y) (mg/L) (mg/L) (ug/L) (ug/L) (ug/L) (ug/L) <br /> 0-1 09/08/10 <0.50 1.2 8.9 0.90 <0.50 3.8 <br /> 0-1 03/02/11 <0.50 0.69 60 1.60 3.5 5.3 <br /> 0-1 09/01/11 <0.50 1.3 7.6 0.53 0.68 1.3 <br /> 0-1 03/02/12 <0.50 <0.50 14 <0.50 0.72 <0.50 <br /> 0-1 09/07/12 <0.50 <0.50 6.5 <0.50 <0.50 0.73 <br /> 0-1 03/12/13 <0.50 <0.50 8.5 <0.50 <0.50 <0.50 <br /> 0-1 09/13/13 <0.50 <0.50 5.3 <0.50 <0.50 0.71 <br /> 0-1 03/05/14 <0.50 <0.50 7.0 <0.50 <0.50 <0.50 <br /> RW-1 09/09/10 1.1 8.8 1,900 25 110 27 <br /> RW-1 03/02/11 1.0 6.2 1,100 14 61 26 <br /> RW-1 09/01/11 2.4 5.8 910 11 55 20 <br /> RW-1 03/02/12 1.3 2.4 240 <5.0o <5.00 6.9 <br /> RW-1 09/07/12 0.752 3.3 890 15 19 15 <br /> RW-1 03/12/13 1.2 2.9 410 6.0 5.0 11 <br /> RW-1 09/13/13 0.80 2.3 460 <10v 12 14 <br /> RW-1 03/05/14 1.1 3.4 650 8.7 7.1 7.9 <br /> Dup N-7 03/02/11 1.6r 33 13,000 410 1,900 1,900 Labeled as DUP-01 <br /> Dup N-7 09/01/11 11Z 36 7,900 150 1,400 1,100 Labeled as DUP-01 <br /> Dup N-7 03/02/12 3AL 11 3,200 150 820 880 Labeled as DUP-01 <br /> Dup N-7 09/07/12 8.2Z 4.1 1,500 53 300 270 Labeled as DUP-01 <br /> Dup N-7 03/12/13 15r 15 4,100 180 1100 880 Labeled as DUP-01 <br /> Dup N-7 09/13/13 10L <2.0 V 660 15 39 68 Labeled as DUP-01 <br /> Dup N-7 03/05/14 4.7L 10 2,700 110 700 520 Labeled as DUP-01 <br /> Dup N-18 06/01/11 <0.50 <0.50 12 0.54 <0.50 0.88 Labeled as DUP-01 <br /> EXPLANATION: <br /> NA =Not Analyzed <br /> NS =Not Sampled <br /> ND =Not Detected at or above laboratory detection limit,as listed at end of table <br /> (M/DN) =Month/Day/Year <br /> (Ng/L) =micrograms per liter(parts per billion) <br /> (mg/L) =milligrams per liter(parts per million) <br /> TPH-P(GRO) =Total Petroleum Hydrocarbons(Gasoline Range Organics)=C4-C13 <br /> TPH-E(DRO) =Total Petroleum Hydrocarbons(Diesel Range Organics)=C13-C22 <br /> 0 =The reporting limit was raised due to sample foaming. <br /> ' =Reporting Limits were increased due to high concentrations of target analytes. <br /> H =Reporting limit was increased due to the hydrocarbons present in the sample <br /> + =Reported diesel concentration may include some undifferentiated gasoline. <br /> C =Reported concentration includes additional compounds uncharacteristic of common fuels and lubricants. <br /> ^* =Reporting Limits were increased due to sample matrix interferences. <br /> =Reported diesel concentration may include some undifferentiated lighter-end hydrocarbons. <br /> =Reported diesel concentration may include some undifferentiated heavier-end hydrocarbons. <br /> =Reported diesel concentration may include some undifferentiated lighter-end hydrocarbons <br /> K =DRO concentration may include lighter-end hydrocarbons(e.g.gasoline)that elute in the DRO range. <br /> V =Reporting limits were increased due to high concentrations of target analytes. <br /> X =Reporting limits increased due to SAMPLE matrix interferences. <br /> Q =DRO concentration may include contributions from lighter-end hydrocarbons(e.g.gasoline). <br /> L =DRO concentration may include contributions from heavier-end hydrocarbons that elute in the DRO range. <br /> Z =DRO concentration may include contributions from lighter and heavier-end hydrocarbons that elute in the DRO range. <br /> file: Appendix_C_Historical_Data.xlsx\Sample Tablet <br /> Page 3 of 3 <br />