Laserfiche WebLink
Table 1 <br />Sediment Sample Results <br />Arden Hills, MN <br />Project B2204011.00 <br />Project name: <br />Sample date: <br />Sample locations <br /> <br />Residential / <br />Recreational <br />SRV <br />Commercial / <br />Industrial <br />SRV <br />Chemical <br /> Reporting <br />limit* <br />mg/kg mg/kg mg/kg <br />Metals <br />Arsenic Varies 99 <br />Copper Varies 2,200 33,000 <br />Noncarcinogenic PAHs <br />Acenaphthene Varies 450 6,800 <br />Acenaphthylene Varies na na <br />Anthracene Varies 2,800 42,000 <br />Benzo(g,h,i)perylene Varies na na <br />Fluoranthene Varies 200 2,700 <br />Fluorene Varies 390 5,800 <br />2-Methylnaphthalene Varies 39 580 <br />Naphthalene Varies 81 280 <br />Phenanthrene Varies na na <br />Pyrene Varies 220 3,200 <br />Carcinogenic PAHs/ <br />B[a]P Equivalents <br />Reporting <br />limit* <br />mg/kg <br />Potency <br />Equiv. Factor <br />(PEF) <br /> <br />Site <br />Conc. <br />mg/kg <br />BaP <br />Equiv. <br />Conc. <br />mg/kg <br />Site <br />Conc. <br />mg/kg <br />BaP <br />Equiv. <br />Conc. <br />mg/kg <br />Site <br />Conc. <br />mg/kg <br />BaP <br />Equiv. <br />Conc. <br />mg/kg <br />Site <br />Conc. <br />mg/kg <br />BaP <br />Equiv. <br />Conc. <br />mg/kg <br />Site <br />Conc. <br />mg/kg <br />BaP <br />Equiv. <br />Conc. <br />mg/kg <br />Site <br />Conc. <br />mg/kg <br />BaP <br />Equiv. <br />Conc. <br />mg/kg <br />Benz[a]anthracene Varies 0.10 0.077 0.008 0.042 0.004 0.002 0.000 0.002 0.000 0.137 0.014 0.007 0.001 <br />Benzofluoranthenes (total) Varies 0.10 0.239 0.024 0.106 0.011 0.0047 0.000 0.030 0.003 0.282 0.028 0.019 0.002 <br />Benzo[a]pyrene Varies 1.00 0.079 0.079 0.049 0.049 0.001 0.001 0.001 0.001 0.146 0.146 0.001 0.001 <br />Chrysene Varies 0.01 0.134 0.001 0.061 0.001 0.0014 0.000 0.017 0.000 0.169 0.002 0.013 0.000 <br />Dibenz[a,h]acridine Varies 0.10 0.002 0.000 0.002 0.000 0.001 0.000 0.001 0.000 0.002 0.000 0.001 0.000 <br />Dibenz[a,h]anthracene Varies 0.56 0.018 0.010 0.001 0.001 0.001 0.000 0.001 0.000 0.023 0.013 0.001 0.000 <br />7H-Dibenzo[c,g]carbazole Varies 1.00 0.006 0.006 0.007 0.007 0.003 0.003 0.003 0.003 0.006 0.006 0.003 0.003 <br />Dibenzo[a,e]pyrene Varies 1.00 0.039 0.039 0.020 0.020 0.001 0.001 0.001 0.001 0.051 0.051 0.001 0.001 <br />Dibenzo[a,h]pyrene Varies 10.00 0.021 0.212 0.004 0.036 0.002 0.016 0.001 0.014 0.028 0.275 0.001 0.014 <br />Dibenzo[a,i]pyrene Varies 10.00 0.001 0.013 0.002 0.017 0.001 0.008 0.001 0.007 0.016 0.159 0.001 0.007 <br />Dibenzo[a,l]pyrene Varies 10.00 0.002 0.020 0.003 0.026 0.001 0.011 0.001 0.010 0.002 0.020 0.001 0.010 <br />7,12 Dimethylbenz-anthracene Varies 34.00 0.001 0.022 0.001 0.029 0.000 0.012 0.000 0.011 0.001 0.023 0.000 0.011 <br />Indeno[1,2,3,-c,d]pyrene Varies 0.10 0.096 0.010 0.042 0.004 0.001 0.000 0.001 0.000 0.116 0.012 0.001 0.000 <br />3-Methylcholanthrene Varies 3.00 0.003 0.010 0.004 0.012 0.002 0.005 0.002 0.005 0.003 0.009 0.002 0.005 <br />5-Methylchrysene Varies 1.00 0.011 0.011 0.002 0.002 0.001 0.001 0.001 0.001 0.002 0.002 0.001 0.001 <br />Total B[a]P Equivalents 2* 23 <br />* Based on background threshold value (BTV) since residential/recreational SRV calculated to be below an estimate of ambient background <br />Less than residential/recreational SRV (suitable for residential land use) <br />Less than commercial/industrial SRV (suitable for industrial land use) <br />SRV = soil reference value <br />PAHs = polycyclic aromatic hydrocarbons <br />B[a]P = benzo[a]pyrene <br />conc. = concentration <br /> <br /> <br />* Reporting limit - insert reporting limit in this column from the lab analytical results reports (converting to mg/kg if necessary) <br />B[a]P Equivalent - Each contaminant sample concentration is multiplied by it's Potency Equivalency Factor (PEF) to obtain a B[a]P equivalent concentration. All B[a]P equivalent <br />concentrations are summed to calculate the total B[a]P equivalent concentration. For nondetect data, use the procedures outlined in Appendix B of "Managing Stormwater Sediment <br />BMP Guidance For Municipalities". Nondetect results within samples with four or more cPAH detections are reported as the MDL, while nondetect results within samples with three or <br />fewer cPAH detections are reported as 1/2 the MDL. <br />0.170 0.102 0.02 0.287 0.0177 <br />Highlight value for "J" flagged data - sample concentration is above method detection limit but below reporting limit <br />0.464 0.220 0.054 0.759 0.053 <br />[+] Per MPCA Guidance document C-R1-05 (Soil Reference Value Technical Support Document, dated April 2022, analytical results are to be rounded <br />to the nearest whole number when compared to whole number BTVs. Concentrations at the BTV are not considered an exceedence, and are flagged <br />with this symbol to show the risk evaluation process. <br />Exceeds commercial/industrial SRV (must be treated or disposed in a landfill with MPCA approved industrial waste management plan) <br />0.059 <br />0.0627 0.0387 <0.0023 0.172 <br /><0.0035 <br /><0.0023<0.0026 <br /><0.0026 <0.0034 <0.0026 <0.0027 <0.0025<0.0029 <br /><0.0025 <0.0033 <0.0025 <0.0025 <0.0024<0.0028 <br /><0.0019 <0.0024 <0.0018 <0.0019 <0.0018<0.0020 <br />Summary of stormwater pond sediment testing results <br />Municipal Stormwater Program <br />wq-strm4-79 (Revised 8/5/21) <br />Doc Type: Site Sampling Results <br />Ponds 1-3 <br />4/18/2023 <br />Pond-1 E <br />mg/kg <br />Pond-1 W <br />mg/kg <br />Pond-2 W <br />mg/kg <br />Pond-3 E <br />mg/kg <br />Pond-3 W <br />mg/kg <br />Pond-2 E <br />mg/kg <br />0.222 0.132 0.0329 0.376 0.0233<0.0037 <br />0.0982 0.0399 <0.0029 0.108 <0.0028<0.0032 <br />0.0077 <0.0019 <0.0015 0.024 <0.0014<0.0017 <br />0.0152 <0.0021 <0.0016 <0.0016 <0.0015<0.0018 <br /><0.0019 <0.0024 <0.0018 <0.0019 <0.0018<0.0020 <br />9.4 20.3 13.5 9.4 12.418.5 <br />3.1 4.6 1.2 1.3 2.71.5