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2010 McCormick & Baxter Groundwater Sample Results. Comparing Current and Historic Results. Oregon DEQ, Hart Crowser, Inc., and GSI Water Solutions. Groundwater Monitoring Wells Current vs. Historic Results (TPAHs). MW-35r: Current vs. Historic Results. - PowerPoint PPT Presentation
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Comparing Current and Historic Results
Oregon DEQ, Hart Crowser, Inc., and GSI Water Solutions
2010 McCormick & Baxter Groundwater Sample Results
Groundwater Monitoring WellsCurrent vs. Historic Results (TPAHs)
MW-35r: Current vs. Historic ResultsSAMPLE LOCATION MW-35r MW-35r
Sample Date 4/25/2006 5/6/2010 Sample Time 14:35 8:11 Well Depth shallow shallowNAPL (Historically) -- --Inside/Outside Barrier Wall outside outsideCONTAMINANT OF INTEREST
Total Metals (mg/L) Arsenic 0.00104 0.00076 Chromium 0.000860 J 0.00041 JCopper 0.000480 U2 0.00073
Zinc 0.00462 U2 0.00250 JPentachlorophenol (ug/L) 0.952 U 0.52 U
Polyaromatic Hydrocarbons (ug/L) Acenaphthene 0.0476 U 0.0063 UAcenaphthylene 0.0476 U 0.0042 UAnthracene 0.0476 U 0.0053 UBenzo (a) anthracene 0.0476 U 0.0032 UBenzo (a) pyrene 0.0476 U 0.0032 UBenzo (b) fluoranthene 0.0476 U 0.0053 UBenzo (k) fluoranthene 0.0476 U 0.0053 UBenzo (ghi) perylene 0.0476 U 0.0021 UChrysene 0.0476 U 0.0053 JDibenzo (a,h) anthracene 0.0952 U 0.0077 UJFluoranthene 0.0476 U 0.012 JFluorene 0.0476 U 0.0032 UIndeno (1,2,3-cd) pyrene 0.0476 U 0.0042 UNapthalene 0.0476 U 0.02 JPhenanthrene 0.0476 U 0.0084 JPyrene 0.0476 U 0.0064 JTotal LPAHs 0.1428 U 0.0284 JTotal HPAHs 0.2618 U 0.0237 JTotal Carcinogenic PAHs 0.2142 U 0.0053 JTotal PAHs 0.4046 U 0.0521 J
PAHs detected at much lower detection limits
PCP = ND
Metals = Similar
MW-37s: Current vs. Historic ResultsSAMPLE LOCATION MW-37s MW-37sSample Date 5/8/2006 5/6/2010Sample Time 9:26 14:20Well Depth shallow NAPL (Historically) -- Inside/Outside Barrier Wall outside CONTAMINANT OF INTEREST Total Metals (mg/L) Arsenic 0.00213 0.00550 Chromium 0.00252 0.00150 Copper 0.00153 J 0.00120 Zinc 0.00350 U2 0.00210 JPentachlorophenol (ug/L) 31.6 158
Polyaromatic Hydrocarbons (ug/L) Acenaphthene 8.89 J5 44.7 Acenaphthylene 0.25 U 1 Anthracene 0.442 0.76 Benzo (a) anthracene 0.109 0.0031 UBenzo (a) pyrene 0.0853 J5 0.0031 UBenzo (b) fluoranthene 0.111 0.0052 UBenzo (k) fluoranthene 0.107 0.0052 UBenzo (ghi) perylene 0.0878 J 0.0021 UChrysene 0.111 0.0031 UDibenzo (a,h) anthracene 0.1 U 0.008 UJFluoranthene 0.257 0.13 Fluorene 2.52 18.8 Indeno (1,2,3-cd) pyrene 0.0898 J 0.0041 UNapthalene 50 406 Phenanthrene 1.18 4.4 Pyrene 0.193 0.1 Total LPAHs 63.032 475.66 Total HPAHs 1.1509 0.23 Total Carcinogenic PAHs 0.7009 0.01695 UTotal PAHs 64.1829 475.89
LPAHs are an order of magnitude higher
cPAHs are ND (lower)
PCP is higher
Metals are low and similar to 2006
MW-37i: Current vs. Historic ResultsSAMPLE LOCATION MW-37i MW-37iSample Date 5/4/2006 5/6/2010Sample Time 16:32 13:35Well Depth intermediate NAPL (Historically) -- Inside/Outside Barrier Wall outside CONTAMINANT OF INTEREST Total Metals (mg/L) Arsenic 0.0513 0.03880 Chromium 0.00824 0.00240 Copper 0.00476 0.00460 Zinc 0.0114 0.01310 Pentachlorophenol (ug/L) 9.9 U 0.53 UPolyaromatic Hydrocarbons (ug/L) Acenaphthene 0.0495 U 6.6 Acenaphthylene 0.0495 U 0.039 JAnthracene 0.0495 U 0.043 Benzo (a) anthracene 0.0495 U 0.0032 UBenzo (a) pyrene 0.0495 U 0.0032 UBenzo (b) fluoranthene 0.0495 U 0.0053 UBenzo (k) fluoranthene 0.0495 U 0.0053 UBenzo (ghi) perylene 0.0495 U 0.0021 UChrysene 0.0495 U 0.0032 UDibenzo (a,h) anthracene 0.99 U 0.0078 UJFluoranthene 0.0495 U 0.011 JFluorene 0.0495 U 0.34 Indeno (1,2,3-cd) pyrene 0.0495 U 0.0042 UNapthalene 47.4 0.3 Phenanthrene 0.0495 U 0.0033 JPyrene 0.0495 U 0.011 JTotal LPAHs 47.4 7.3253 Total HPAHs 0.71775 U 0.022 Total Carcinogenic PAHs 0.66825 U 0.01715 UTotal PAHs 48.11775 7.3473
LPAHs = lower
CPAHs = ND
PCP = ND
Metals = similar
MW-37d: Current vs. Historic ResultsSAMPLE LOCATION MW-37d MW-37dSample Date 5/16/2006 5/6/2010Sample Time 15:47 13:09Well Depth deep NAPL (Historically) -- Inside/Outside Barrier Wall outside CONTAMINANT OF INTEREST Total Metals (mg/L) Arsenic 0.0353 0.00170 Chromium 0.000605 U 0.00024 UCopper 0.0105 0.00320 Zinc 0.00966 J 0.03410 Pentachlorophenol (ug/L) 0.98 U 0.51 UPolyaromatic Hydrocarbons (ug/L) Acenaphthene 1.15 0.11 Acenaphthylene 0.049 U 0.004 UAnthracene 0.125 U2 0.059 Benzo (a) anthracene 0.049 U 0.003 UBenzo (a) pyrene 0.049 U 0.003 UBenzo (b) fluoranthene 0.049 U 0.005 UBenzo (k) fluoranthene 0.049 U 0.005 UBenzo (ghi) perylene 0.049 U 0.002 UChrysene 0.049 U 0.003 UDibenzo (a,h) anthracene 0.098 U 0.0075 UJFluoranthene 0.049 U 0.004 UFluorene 0.049 U 0.003 UIndeno (1,2,3-cd) pyrene 0.0495 U 0.004 UNapthalene 28.2 0.005 UPhenanthrene 0.049 U 0.006 UPyrene 0.049 U 0.006 UTotal LPAHs 29.35 0.169 Total HPAHs 0.26975 U 0.02125 UTotal Carcinogenic PAHs 0.22075 U 0.01625 UTotal PAHs 29.35 0.169
LPAHs = lower
cPAHs = ND
PCP = ND
Metals = lower except Zn
MW-39s: Current vs. Historic ResultsSAMPLE LOCATION MW-39s MW-39sSample Date 5/8/2006 5/6/2010Sample Time 16:45 11:01Well Depth shallow NAPL (Historically) -- Inside/Outside Barrier Wall outside CONTAMINANT OF INTEREST Total Metals (mg/L) Arsenic 0.0153 0.01210 Chromium 0.0111 0.00140 Copper 0.00719 0.00170 Zinc 0.0120 0.00280 JPentachlorophenol (ug/L) 1 U 0.54 UPolyaromatic Hydrocarbons (ug/L) Acenaphthene 0.373 J5 0.0021 JAcenaphthylene 0.0583 J 0.0041 UAnthracene 0.246 0.051 Benzo (a) anthracene 0.0927 J 0.0031 UBenzo (a) pyrene 0.0707 J5 0.0031 UBenzo (b) fluoranthene 0.0862 J 0.0051 UBenzo (k) fluoranthene 0.087 J 0.0051 UBenzo (ghi) perylene 0.0586 J 0.002 UChrysene 0.11 0.0031 UDibenzo (a,h) anthracene 0.1 U 0.0077 UJFluoranthene 0.264 0.026 JFluorene 0.29 0.011 JIndeno (1,2,3-cd) pyrene 0.0575 J 0.0041 UNapthalene 0.195 0.0051 UPhenanthrene 0.156 0.0061 UPyrene 0.195 0.023 JTotal LPAHs 1.3183 0.0791 JTotal HPAHs 1.0217 0.034 JTotal Carcinogenic PAHs 0.5627 0.01665 UTotal PAHs 2.34 0.1131
LPAHs = lower
cPAHs = 2010 ND (lower)
PCP = ND
Metals = lower
MW-41s: Current vs. Historic ResultsSAMPLE LOCATION MW-41s MW-41s Sample Date 5/8/2006 5/6/2010 Sample Time 13:32 12:08 Well Depth shallow NAPL (Historically) -- Inside/Outside Barrier Wall outside CONTAMINANT OF INTEREST Total Metals (mg/L) Arsenic 0.00435 0.00250 Chromium 0.0246 0.00200 Copper 0.00746 0.00130 Zinc 0.00940 0.00210 JPentachlorophenol (ug/L) 0.99 U 0.53 UPolyaromatic Hydrocarbons (ug/L) Acenaphthene 0.79 J5 0.017 Acenaphthylene 0.0697 J 0.0042 UAnthracene 0.125 0.059 Benzo (a) anthracene 0.0724 J 0.0032 UBenzo (a) pyrene 0.055 J5 0.0032 UBenzo (b) fluoranthene 0.0633 J 0.0053 UBenzo (k) fluoranthene 0.0695 J 0.0053 UBenzo (ghi) perylene 0.0573 J 0.0021 UChrysene 0.0803 J 0.0032 UDibenzo (a,h) anthracene 0.099 U 0.0081 UJFluoranthene 0.22 0.0082 JFluorene 0.436 0.17 Indeno (1,2,3-cd) pyrene 0.056 J 0.0042 UNapthalene 1.76 0.0053 UPhenanthrene 0.228 0.023 JPyrene 0.155 0.008 JTotal LPAHs 3.4087 0.269 JTotal HPAHs 0.8288 0.0162 JTotal Carcinogenic PAHs 0.4538 0.0173 UTotal PAHs 4.2375 0.2852 J
LPAHs = lower
cPAHs = 2010 NDlower
PCP = ND
Metals = lower
MW-47s: Current vs. Historic ResultsSAMPLE LOCATION MW-47s MW-47s Sample Date 4/27/2006 5/6/2010 Sample Time 9:42 12:20 Well Depth shallow NAPL (Historically) -- Inside/Outside Barrier Wall outside CONTAMINANT OF INTEREST Total Metals (mg/L) Arsenic 0.0135 0.01070 Chromium 0.00106 0.00150 Copper 0.000212 J 0.00180 Zinc 0.00186 J 0.00480 JPentachlorophenol (ug/L) 0.962 U 0.53 UPolyaromatic Hydrocarbons (ug/L) Acenaphthene 1.95 2.1 Acenaphthylene 0.0481 U 0.0043 UAnthracene 0.0632 J 0.023 JBenzo (a) anthracene 0.0481 U 0.0032 UBenzo (a) pyrene 0.0481 U 0.0032 UBenzo (b) fluoranthene 0.0481 U 0.0054 UBenzo (k) fluoranthene 0.0481 U 0.0054 UBenzo (ghi) perylene 0.0481 U 0.0022 UChrysene 0.0481 U 0.0032 UDibenzo (a,h) anthracene 0.0962 U 0.008 UJFluoranthene 0.0487 J 0.018 JFluorene 0.0868 J 0.0032 UIndeno (1,2,3-cd) pyrene 0.0481 U 0.0043 UNapthalene 0.0481 U 0.0054 UPhenanthrene 0.131 0.048 Pyrene 0.0481 U 0.014 JTotal LPAHs 2.231 2.171 JTotal HPAHs 0.0487 0.032 JTotal Carcinogenic PAHs 0.21645 U 0.01745 UTotal PAHs 2.2797 2.203 J
LPAHs = similar
cPAHs = ND
PCP = ND
Metals = similar
MW-53s: Current vs. Historic ResultsSAMPLE LOCATION MW-53s MW-53sSample Date 4/26/2006 5/6/2010Sample Time 10:25 10:10Well Depth shallow NAPL (Historically) -- Inside/Outside Barrier Wall outside CONTAMINANT OF INTEREST Total Metals (mg/L) Arsenic 0.0132 0.01810 Chromium 0.00102 0.00120 Copper 0.00125 J 0.00710 Zinc 0.00688 0.01030 Pentachlorophenol (ug/L) 1650 68.4 Polyaromatic Hydrocarbons (ug/L) Acenaphthene 0.0472 U 0.011 JAcenaphthylene 0.0472 U 0.0041 UAnthracene 0.474 0.16 Benzo (a) anthracene 0.0472 U 0.0031 UBenzo (a) pyrene 0.0472 U 0.0031 UBenzo (b) fluoranthene 0.0472 U 0.0051 UBenzo (k) fluoranthene 0.0472 U 0.0051 UBenzo (ghi) perylene 0.0472 U 0.0021 UChrysene 0.0472 U 0.0031 UDibenzo (a,h) anthracene 0.0943 U 0.0078 UJFluoranthene 0.0472 U 0.011 JFluorene 0.0472 U 0.017 JIndeno (1,2,3-cd) pyrene 0.0472 U 0.0041 UNapthalene 0.0472 U 0.45 Phenanthrene 0.0472 U 0.019 JPyrene 0.0933 J 0.014 JTotal LPAHs 0.474 0.657 JTotal HPAHs 0.0933 0.025 JTotal Carcinogenic PAHs 0.21235 U 0.01675 UTotal PAHs 0.5673 0.682 J
LPAHs = similar
cPAHs = ND
PCP = 2 orders of magnitude lower
Metals = similar
MW-55s: Current vs. Historic ResultsSAMPLE LOCATION MW-55s MW-55sSample Date 4/26/2006 5/6/2010Sample Time 9:02 9:10Well Depth shallow NAPL (Historically) -- Inside/Outside Barrier Wall outside CONTAMINANT OF INTEREST Total Metals (mg/L) Arsenic 0.00547 0.00180 Chromium 0.000480 0.00086 Copper 0.000580 U2 0.00210 Zinc 0.00751 0.00600 Pentachlorophenol (ug/L) 0.952 U 0.51 UPolyaromatic Hydrocarbons (ug/L) Acenaphthene 0.0476 U 0.0061 UAcenaphthylene 0.0476 U 0.0041 UAnthracene 0.146 0.022 JBenzo (a) anthracene 0.0476 U 0.0031 UBenzo (a) pyrene 0.0476 U 0.0031 UBenzo (b) fluoranthene 0.0476 U 0.0051 UBenzo (k) fluoranthene 0.0476 U 0.0051 UBenzo (ghi) perylene 0.0476 U 0.002 UChrysene 0.0476 U 0.0031 UDibenzo (a,h) anthracene 0.0952 U 0.0077 UJFluoranthene 0.0476 U 0.013 JFluorene 0.0476 U 0.0034 JIndeno (1,2,3-cd) pyrene 0.0476 U 0.0041 UNapthalene 0.0476 U 0.0051 UPhenanthrene 0.0476 U 0.0099 JPyrene 0.0476 U 0.0092 JTotal LPAHs 0.146 0.0353 JTotal HPAHs 0.2618 U 0.0222 JTotal Carcinogenic PAHs 0.2142 U 0.01665 UTotal PAHs 0.4078 0.0575 J
LPAHs = lower
cPAHs = ND
PCP = ND
Metals = similar Cu higher
MW-58s: Current vs. Historic ResultsSAMPLE LOCATION MW-58s MW-58sSample Date 5/9/2006 5/6/2010Sample Time 13:56 10:36Well Depth shallow NAPL (Historically) -- Inside/Outside Barrier Wall outside CONTAMINANT OF INTEREST Total Metals (mg/L) Arsenic 0.00309 0.00062 Chromium 0.00347 0.00110 Copper 0.00343 0.00230 Zinc 0.00368 U2 0.00290 JPentachlorophenol (ug/L) 0.952 U 0.56 UPolyaromatic Hydrocarbons (ug/L) Acenaphthene 0.325 J5 0.0065 UAcenaphthylene 0.0476 U 0.0043 UAnthracene 0.0499 J 0.0084 JBenzo (a) anthracene 0.0476 U 0.0033 UBenzo (a) pyrene 0.0476 U 0.0033 UBenzo (b) fluoranthene 0.0476 U 0.0054 UBenzo (k) fluoranthene 0.0476 U 0.0054 UBenzo (ghi) perylene 0.0476 U 0.0022 UChrysene 0.0476 U 0.0033 UDibenzo (a,h) anthracene 0.0952 U 0.0081 UJFluoranthene 0.0697 J 0.0043 UFluorene 0.182 0.0057 JIndeno (1,2,3-cd) pyrene 0.0476 U 0.0043 UNapthalene 1.31 0.0054 UPhenanthrene 0.0683 J 0.0065 UPyrene 0.0797 J 0.0065 UTotal LPAHs 1.9352 0.0141 JTotal HPAHs 0.1494 0.02305 UTotal Carcinogenic PAHs 0.2142 U 0.01765 UTotal PAHs 2.0846 0.0141 J
LPAHs = lower
cPAHs = ND
PCP = ND
Metals = lower/similar
MW-19s: Current vs. Historic ResultsSAMPLE LOCATION EW-19s3 EW-19sSample Date 5/17/2006 5/6/2010Sample Time 14:12 14:55Well Depth shallow NAPL (Historically) NAPL Inside/Outside Barrier Wall outside CONTAMINANT OF INTEREST Total Metals (mg/L) Arsenic 0.00216 0.00340 Chromium 0.000380 J 0.00250 Copper 0.000620 J 0.00350 Zinc 0.00362 J 0.00200 JPentachlorophenol (ug/L) 366 428 Polyaromatic Hydrocarbons (ug/L) Acenaphthene 67.1 111 Acenaphthylene 12.3 U 3.1 Anthracene 12.3 U 14.7 Benzo (a) anthracene 12.3 U 7.3 Benzo (a) pyrene 12.3 U 2.9 Benzo (b) fluoranthene 12.3 U 4.9 Benzo (k) fluoranthene 12.3 U 1.7 Benzo (ghi) perylene 12.3 U 0.82 Chrysene 12.3 U 6.6 Dibenzo (a,h) anthracene 24.5 U 0.33 JFluoranthene 12.3 U 39.3 Fluorene 24 52.9 Indeno (1,2,3-cd) pyrene 12.3 U 0.91 Napthalene 915 284 Phenanthrene 12.3 U 88.4 Pyrene 12.3 U 28.1 Total LPAHs 1006.1 554.1 Total HPAHs 67.6 U 92.86 JTotal Carcinogenic PAHs 55.3 U 25.46 JTotal PAHs 1006.1 646.96 J
LPAHs = similar to lower
cPAHs = similar?(lower detection limits)
PCP = similar
Metals = slightly higher
Conclusions for Groundwater Sampling
Concentrations generally are lower with isolated increases; however generally in same ranges
Recommend no immediate term groundwater sampling unless associated with DNAPL Recovery System
Groundwater is not expected to change in concentrations for a long time – perhaps sample again in 20 years? – Team discussion