WORK PLANS - Laserfiche WebLink

Home Browse Search

�7 TABLE A-HISTORIC GROUNDWATER MONITORING DATA DTW GWE Benzene Toluene Ethyl Total MTBE TPH-G TEPH Other Benzene Xylenes Oxygenates Analytical Method--> 8021B 80218 8021E 8021B 8015M 8015M Detection Limits- 0.5 0.5 0.5 1.0 0.5 50 50-250 0.5-50 Elev. Units-TOC Ele We Date Feet Feet MW-4D ft 5/28/2010 36.94 -21.06 ENS <0.5 <0.5 <I.0 NA <50 <50-<250 NA 15.88 11/29/2010 31.09 -15.21 <0.5 <0.5 <1.0 NA <50 <50-X1503 NA 2/25/2011 . 29.84 -13.96 <0.5 <0.5 <1.0 NA <50 <50-<250' NA 5/1812011 28.95 -13.07 <0.5 <0.5 <L0 NA <50 <50-<2503 NA r, 8/1/2011 28.44 -12.56 NS NS NS NS NS NS NS MW-5 ff 5/28/2010 31.33 1 -15.18 69 5.5 2.5 42 NA 6,500 12,000 D NA 16.15 11/29/2010 31.46 -15.31 49 3.4 1.3 18 NA 1,300 4,400 (D)2,3 NA 2/25/2011 30.23 -14.08 64 2.8 1. , D***'3 9 10 NA 1,000 1800 NA 5/18/2011 29.33 -13.18 37 1.0 0.9 2.0 NA 510 900 (D)' NA 8/1/201_1 28.79 -12.64 NS NS NS NS NS NS NS NS MW-6 tf 5/28/2010 31.23 -15.04 <0.5 <0.5 0.6 <1.0 NA 52 <50-/150 NA 16.19 11/29/2010 31.38 -15.19 <0.5 <0.5 <0.5 <1.0 NA <50 <50-<250' NA 2/25/1011 30.10 1 -13.91 <0.5 <0.5 <0.5 <1.0 NA <50 <50-<2503 NA 5/18/2011 29.23 -13.04 <0.5 <0.5 <0.5 <1.0 NA <50 <50-<250' NA 8/1/2011 28.71 -12.52 NS NS NS NS NS NS NS NS MW-7 4125/201a129.58 -13.65 <0.5 <0.5 <0.5 <1.0 NA <50 <50NA 15.93 5/18/2014 -13.41 <0.5 <0.5 <0.5 <1.0 NA <50 <50-<250' NA8/1/2D19 -12.86 <0.5 <0.5 <0.5 <l.D NA <SD <SO t NA Notes: Unit Conversions: ' Top of casing elevations(feet)are referenced to NAVD88 vertical datum Ng/L=micrograms per liter=parts per billion(ppb) I DTW=depth to water(feet) GWE=groundwater elevation(feet) NA=not analyzed NS=not sampled *Chromotgraphic pattern does not match typical gas standard. **Analytes sampled include only BTEX,MTBE,TPH-G,and TEPH-D. ***Diesel concentration is approximate due to interfering/overlapping peaks from gasoline range organics. ****Analytes include only BTEX,TPH-G,and TEPH-D,per S]CEHD letter dated May 12,2009. t=Additional monitoring well installed on 8/29/20D6. tt=Additional monitoring wells installed on 5/6/2010 and 5/7/2010. ♦=Laboratory reporting limit was raised due to elevated concentrations of non-target analytes. •=Results in the diesel organics range are primarily due to overlap from a gasoline range product. I o=Sample diluted due to high concentration of target analytes and/or high organic content. 'Analyzed for TEPH-D,diesel,only. 3Hydrocarbon pattern present in the requested fuel quantaion range,but does not resemble the pattern of the requested fuel. 'Analyzed for TEPH-D and-MO only. An-nalytical: B,T,E,X=benzene,toluene,ethyl benzene,and total xylenes. MTBE=methyl tertiary-butyl ether TPH-G=total petroleum hydrocarbons,quantified as gasoline. TEPH=total extractable petroleum hydrocarbons,quantified as kerosene(K),motor oil(MO),and diesel(D) r- Other Oxygenates:methanol;ethanol;tertiary-butanol(TBA);di-isopropyl ether(DIPS);ethyl tertiary-butyl ether(ETBE);tertiary-amyl methyl ether(TAME); L 1,2-dichloroethane(f,2-DCA);and 1,2-dibromoethane(EDB). I IYi ` PA30W_prj)3849 Raymond Investment Beverly GarciaW49Q Well Destruction WP and CloseoutlReportslwork plans538490 3Q11 F istarical Tables.xlsTable A