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Well Increasing Trends Decreasing Trends
<br /> Number
<br /> AMW-1 Barium, Bicarbonate, Specific Nitrate-N,pH, Sulfate,DCDFM, 1,3-DCB
<br /> Conductance, 1,1-DCA,
<br /> Chlorobenzene,cis-1,2-DCE
<br /> AMW-3 None Apparent None Apparent
<br /> AMW-4 Nitrate-N,pH Bicarbonate,Calcium,Chloride, Magnesium,
<br /> Potassium, Specific Conductance,Strontium,TDS,
<br /> l,l-DCA, 1,2-DCP, 1,4-DCB,cis-1,2-DCE,
<br /> DCDFM,PCE,TCE,trans-1,2-DCE,
<br /> Vinyl Chloride
<br /> AMW-5R Bicarbonate,Chloride,Nitrate-N, Magnesium,PCE
<br /> pH, Specific Conductance,
<br /> Sulfate,TDS
<br /> AMW-10 Sulfate Barium, Bicarbonate,Calcium,Chloride,
<br /> Magnesium,Nitrate-N,Potassium, Sodium,
<br /> Specific Conductance, Strontium,TDS, 1,1-DCA,
<br /> DCDFM, PCE,TCE
<br /> AMW-11 pH Barium,Carbonate,Chloride,Magnesium,
<br /> Potassium, Specific Conductance,TDS, 1,1-DCA,
<br /> 1,2-DCP,cis-1,2-DCE, DCDFM,PCE,TCE
<br /> trans-l,2-DCE
<br /> AMW-18 Bicarbonate Carbonate,Chloride,Nitrate-N, Potassium,
<br /> Sodium, Sulfate,TDS
<br /> AMW-19 Barium Hexavalent Chromium,Nitrate-N, Sodium,Sulfate
<br /> AMW-19BR Chloride,pH Hexavalent Chromium,Nitrate-N,Potassium,
<br /> Sodium, Sulfate,cis-1,2-DCE
<br /> Notes: l,4-DCB—1,4-dichlobenzene 1,2-DCP—1,2-dichloropropane trans-1,2-DCE—trans-1,2-Dichloroethene
<br /> As shown in the table above, significant increasing trends were calculated for three VOC
<br /> constituents in CAP well AMW-1, while decreasing VOC trends were noted for several
<br /> VOCs in CAP wells AMW-1, AMW-4, AMW-5 , AMW-10, AMW-11, and AMW-
<br /> 1913R. The increasing trend exhibited for cis-1,2-DCE at wells AMW-1, suggests
<br /> reductive dechlorination is occurring in the vicinity of this well.
<br /> 3.1.6 Domestic Well Monitoring
<br /> Two domestic wells (7898-A and 8106-A) were sampled on February 24, 2012. Table
<br /> 3-3 summarizes the current analytical results for the domestic well samples collected. In
<br /> the samples collected from wells 7898-A and 8106-A, PCE and TCE were measured
<br /> above the PQL, TCFM was also measured above the PQL in the sample collected from
<br /> well 8106-A. Estimate trace concentrations of three VOCs were measured in the sample
<br /> collected from well 7898-A, and two VOCs were measured at trace concentrations in the
<br /> sample collected from well 8106-A.
<br /> 3.1.7 Surface Water Monitoring
<br /> During the first quarter 2012 monitoring period, both surface-water monitoring stations
<br /> ASW-1 and ASW-2 were reported dry by Del-Tech on February 22, 2012.
<br /> C:\2012-0025\FA_IQI2.doc 11 Geo-Logic Associates
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