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PUBLIC HEALTH ASSESSMENT

AMERICAN LINEN (AMERIPRIDE)
(a/k/a AMERIPRIDE SERVICES, INCORPORATED)
HIBBING, ST. LOUIS COUNTY, MINNESOTA


APPENDICES

A. APPENDIX I: FIGURES

Site Location
Figure 1. Site Location

Site Map
Figure 2. Site Map

Soil Borings
Figure 3. Soil Borings

Shallow Groundwater Flow
Figure 4. Shallow Groundwater Flow

Intermediate Groundwater Flow
Figure 5. Intermediate Groundwater Flow

Deep Groundwater Flow
Figure 6. Deep Groundwater Flow

PCE Degradation
Figure 7. PCE Degradation


Table 1. PCE Source Area Soil Analytical Results
Maximum Contaminant Concentrations, mg/kg

Table 1.

PCE Source Area Soil Analytical Results
Maximum Contaminant Concentrations, mg/kg
Boring Depth PCE TCE Cis-1,2-DCE Trans-1,2-DCE
HAB-2 50" 48 0.3 0.26 ND
HAB-3 60" 2500 43 9.9 0.15
HAB-4 37" 8 0.2 0.2 ND
HAB-5 27" 0.7 ND ND ND
HAB-6 42" 0.6 0.16 0.15 ND
PP-1 12" 60 12 0.8 ND
PP-2 90" 8 6.1 2 ND
PP-3 75" 419 24 3.5 ND
PP-4 90" 1750 835 193 3.3
PP-5 90" 1 0.8 8.4 0.3
PP-6 48" 0.5 0.8 ND 0.5
PP-7 78" 0.3 1.3 4.4 ND
PP-8 90" ND 0.8 1 ND
PP-9 98" 2.1 1.6 3.3 ND
PP-10 96" 9.6 13 7.6 ND
PP-11 72" 99 29 7.9 ND
PP-12 72" 2.2 3.5 ND 0.6
PP-13 72" 3.5 2.7 ND 0.7
PP-14 96" 14 2.9 0.8 ND
PP-15 36" 3.5 2.1 ND 0.5
PP-16 10' 182 25 38 0.4
PP-17 10' 170 48 11 0.3
PP-18 48" 59 2.8 0.2 0.3
PP-19 10' 75 16 3.7 ND
PP-22 96" 47 7.8 3.7 ND
           
Res. SRV   92 34 320 130
Ind. SRV   320 55 2200 425
SLV   0.07 0.14 0.14 0.22


Table 2.

Historical Groundwater Analytical Results
Groundwater Analytical Results (µg/L)
MW-1S
Parameter HRL 09/06/96 01/06/97 duplicate
01/06/97
12/11/97 03/31/98 10/22/98 02/10/99 05/03/99 08/10/99 03/13/00 10/03/00
Acetone 700 ND ND ND ND ND ND ND ND ND ND ND
Benzene 10 2.1 0.9 0.8 11 4.2 9.5 1.1 1.2 ND ND ND
n-Butylbenzene -- 2.5 2.6 2.8 ND 1.7 ND ND ND ND ND ND
sec-Butylbenzene -- 2.0 1.1 1.0 ND ND ND ND ND ND ND ND
tert-Butylbenzene -- 1.5 ND ND ND ND ND ND ND ND ND ND
Chloroethane -- ND ND ND ND ND ND ND ND ND ND ND
1,2-Dichloroethane 4 ND ND ND ND ND ND ND ND ND ND ND
1,1-Dichloroethylene 6 ND ND ND ND ND 1.6 1.3 ND 1.7 ND ND
cis-1,2-Dichloroethylene 70 75 20 14 30 180 360 380 110 820 27 75
trans-1,2-Dichloroethylene 100 3.0 0.4 0.3 ND 1.4 5.1 4.2 1.2 11 ND 1.2
Dichlorodifluoromethane 1000 ND ND ND ND ND ND ND ND ND ND ND
Ethyl Benzene 700 7.0 5.3 5.3 ND ND ND ND ND ND ND ND
Ethyl Ether 1000 ND ND ND ND ND ND ND ND ND ND ND
Isopropylbenzene 300 3.4 ND ND ND ND ND ND ND ND ND ND
Isopropyltoluene -- ND ND ND ND ND ND ND ND ND ND ND
Methyl Ethyl Ketone 4000 76 8.8 8.9 ND ND ND ND ND ND ND ND
Methyl Isobutyl Ketone 300 21 18 16 ND ND ND ND ND ND ND ND
Naphthalene 300 1.9 ND ND ND ND ND ND ND ND ND ND
n-Propylbenzene -- 2.0 1.2 1.3 ND ND ND ND ND ND ND ND
Tetrachloroethylene 7 52 18 13 15 190 300 360 ND 1200 24 84
Tetrahydrofuran -- 200 66 64 ND ND ND ND ND ND ND ND
1,1,1-Trichloroethane 600 ND ND ND ND ND ND ND ND ND ND ND
Toluene 1000 2.2 1.2 1.2 ND ND ND ND ND ND ND ND
1,1,2-Trichloroethylene 30 44 15 11 9.8 83 120 130 34 310 8.7 35
Trichlorofluoromethane 2000 ND ND ND ND ND ND ND ND ND ND ND
1,2,4-Trimethylbenzene -- ND ND ND ND ND ND ND ND ND ND ND
1,3,5-Trimethylbenzene -- ND ND ND ND ND ND ND ND ND ND ND
Vinyl Chloride 0.2 31 3.0 2.4 4.6 6.1 6.2 14 ND 3.6 2.9 2.4
m,p-Xylene 10000* ND ND ND ND ND ND ND ND ND ND ND
o-Xylene 10000* 1.3 1.2 1.2 ND ND ND ND ND ND ND ND
Diesel Range Organics -- ND 180 160 NA NA NA NA NA NA NA NA
Gasoline Range Organics -- 710 350 370 NA NA NA NA NA NA NA NA

NS = Not sampled
ND = Not detected
NA = Not analyzed
HRL = Minnesota Department of Health, Health Risk Limit
* = HRL established for mixture of isomers m, o, and p
Shading indicates concentration exceeds HRL.


Table 2.

Historical Groundwater Analytical Results
Groundwater Analytical Results (µg/L)
MW-1D
Parameter HRL 09/06/96 01/06/97 12/11/97 03/31/98 10/22/98 02/10/99 05/03/99 08/10/99 03/13/00 10/03/00**
Acetone 700 32 ND ND ND ND ND ND ND ND ND
Benzene 10 14 7.6 5.2 3.9 4.8 5.7 6.2 3.7 2.7 2.1 (2.1)
n-Butylbenzene -- ND ND ND ND ND ND ND ND ND ND
sec-Butylbenzene -- ND ND ND ND ND ND ND ND ND ND
tert-Butylbenzene -- ND ND ND ND ND ND ND ND ND ND
Chloroethane -- ND 4.2 ND ND ND ND ND ND ND ND
1,2-Dichloroethane 4 0.8 0.4 ND ND ND ND ND ND ND ND
1,1-Dichloroethylene 6 2.5 1.4 1.3 ND 1.5 1.5 1.1 ND ND 1.1 (ND)
cis-1,2-Dichloroethylene 70 52 62 22 100 95 210 39 100 190 56 (37)
trans-1,2-Dichloroethylene 100 0.9 0.9 ND 1.5 2.5 3.8 ND 2.2 3.5 1.1 (ND)
Dichlorodifluoromethane 1000 ND ND 1.2 ND ND ND ND ND ND ND
Ethyl Benzene 700 9.5 2.1 ND ND ND ND ND ND ND ND
Ethyl Ether 1000 ND ND ND ND ND ND ND ND ND ND
Isopropylbenzene 300 2.8 1.0 ND ND ND ND ND ND ND ND
Isopropyltoluene -- ND ND ND ND ND ND ND ND ND ND
Methyl Ethyl Ketone 4000 52 38 ND ND ND ND ND ND ND ND
Methyl Isobutyl Ketone 300 ND ND ND ND ND ND ND ND ND ND
Naphthalene 300 1.3 ND ND ND ND ND ND ND ND ND
n-Propylbenzene -- 1.0 ND ND ND ND ND ND ND ND ND
Tetrachloroethylene 7 ND 19 13 190 190 140 15 170 48 9.5 (30)
Tetrahydrofuran -- 52 34 ND ND ND ND ND ND ND ND
1,1,1-Trichloroethane 600 ND 0.7 ND ND ND ND ND ND ND ND
Toluene 1000 3.7 ND ND ND ND ND ND ND ND ND
1,1,2-Trichloroethylene 30 7.2 11 5.0 47 54 460 73 190 610 110 (81)
Trichlorofluoromethane 2000 ND ND ND ND ND ND ND ND ND ND
1,2,4-Trimethylbenzene -- 1.3 ND ND ND ND ND ND ND ND ND
1,3,5-Trimethylbenzene -- ND ND ND ND ND ND ND ND ND ND
Vinyl Chloride 0.2 30 22 24 6.1 20 37 5.2 3.6 3.0 ND (1.8)
m,p-Xylene 10000* 2.7 ND ND ND ND ND ND ND ND ND
o-Xylene 10000* 2.8 ND ND ND ND ND ND ND ND ND
Diesel Range Organics -- ND ND NA NA NA NA NA NA NA NA
Gasoline Range Organics -- 290 210 NA NA NA NA NA NA NA NA

NA = Not analyzed
ND = Not detected
NS = Not sampled
HRL = Minnesota Department of Health, Health Risk Limit
* = HRL established for mixture of isomers m, o, and p.
Shading indicates concentration exceeds HRL.
** = Concentrations in parentheses are results for split sample collected by MPCA and analyzed by Northeast Technical Services on 10/3/00.


Table 2. Historical Groundwater Analytical Results
Groundwater Analytical Results (µg/L)
MW-2S

Parameter HRL 09/06/96 01/06/97 12/11/97 03/31/98 10/23/98 Duplicate
10/23/98
02/10/99 05/03/99 08/10/99 03/13/00 10/03/00
Acetone 700 25 29 ND ND ND ND ND ND ND ND ND
Benzene 10 2.1 8.9 14 8.0 6.6 6.8 4.3 2.5 8.2 2.2 1.1
n-Butylbenzene -- 8.0 24 5.9 8.4 3.0 3.1 ND ND 4 ND ND
sec-Butylbenzene -- 4.4 6.6 5.4 4.1 3.7 3.8 ND ND 4.2 ND 2.9
tert-Butylbenzene -- ND ND ND ND ND ND ND ND ND ND ND
Chloroethane -- ND ND ND ND ND ND ND ND ND ND ND
1,2-Dichloroethane 4 ND 0.4 ND ND ND ND ND ND ND ND ND
1,1-Dichloroethylene 6 ND ND ND ND 1.8 1.8 ND 2.0 ND ND ND
cis-1,2-Dichloroethylene 70 11 21 170 ND 620 660 300 720 410 260 85
trans-1,2-Dichloroethylene 100 ND 0.3 2.6 8.4 10 10 ND 9.5 6.8 2.8 6.8
Dichlorodifluoromethane 1000 ND ND ND ND ND ND ND 1.1 ND ND ND
1,1-Dichloro-1-propylene -- ND ND ND 1.3 ND 1.3 ND ND ND ND ND
Ethyl Benzene 700 18 94 30 12 9.4 9.6 6.3 4.7 34 1.8 3.4
Ethyl Ether 1000 ND 1.5 ND ND ND ND ND ND ND ND ND
Isopropylbenzene 300 13 24 17 12 8.0 8.3 7.8 6.4 14 3.6 3.7
Isopropyltoluene -- ND 2.5 ND ND ND ND ND ND ND ND ND
Methyl Ethyl Ketone 4000 40 120 ND ND ND ND ND ND ND ND ND
Methyl Isobutyl Ketone 300 10 13 ND ND ND ND ND ND ND ND ND
Naphthalene 300 7.4 24 ND ND ND ND ND ND 1.6 ND ND
n-Propylbenzene -- 13 28 21 11 8.0 8.4 5.2 ND 10 1.5 2.0
Tetrachloroethylene 7 ND ND ND 80 8.2 7.7 ND ND 42 ND ND
Tetrahydrofuran -- 64 130 ND 60 ND ND ND ND ND ND ND
1,1,1-Trichloroethane 600 ND ND ND ND ND ND ND ND ND ND ND
Toluene 1000 3.6 21 3.5 4.3 2.5 2.6 3.2 2.0 4.4 2.6 2.3
1,1,2-Trichloroethylene 30 12 11 1.6 94 8.8 8.7 1.1 2.0 15.0 ND 2.0
Trichlorofluoromethane 2000 ND ND ND ND ND ND ND ND ND ND ND
1,2,4-Trimethylbenzene -- 19 220 ND ND 4.9 4.9 ND ND 11 ND ND
1,3,5-Trimethylbenzene -- 3.1 22 ND ND 2.1 2.1 ND ND 3.9 ND ND
Vinyl Chloride 0.2 ND 5.3 190 160 330 330 110 97 92 86 39
m,p-Xylene 10000* 5.0 200 6.0 ND 6.4 6.5 3 2.0 50 ND 1.8
o-Xylene 10000* 2.9 15 1.3 1.5 ND ND ND ND 1.5 ND ND
Diesel Range Organics -- 830 1000 NA NA NA NA NA NA NA NA NA
Gasoline Range Organics -- 840 2000 NA NA NA NA NA NA NA NA NA

NA = Not analyzed
ND = Not detected
NS = Not sampled
HRL = Minnesota Department of Health, Health Risk Limit
* = HRL established for mixture of isomers m, o, and p.
Shading indicates concentration exceeds HRL.
Results for 5/3/99 reported under MW-2D in Lab report due to sample mixup.


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