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PUBLIC HEALTH ASSESSMENT

REILLY TAR & CHEMICAL CORPORATION
(INDIANAPOLIS PLANT)
INDIANAPOLIS, MARION COUNTY, INDIANA


APPENDICES

APPENDIX A - Figures 1-13

Figure 1
Figure 1.

Figure 2
Figure 2.

Figure 3
Figure 3.

Figure 4
Figure 4.

Figure 5
Figure 5.

Figure 6
Figure 6.

Figure 7
Figure 7.

Figure 8
Figure 8.

Figure 9
Figure 9.

Figure 10
Figure 10.

Figure 11
Figure 11.

Figure 12
Figure 12.

Figure 13
Figure 13.



APPENDIX B - Tables

On-Site Subsurface Soil Lime Pond Sample Results, May 1989.

(Data used to develop Table 1.)

Chemical Field ID Concentration Range - ppb
Organic Chemicals
acenaphthene LP16-1-3 42
acenaphthylene LP16-6-2 160
acetone LP16-6-3
LP16-4-2
7-17
anthracene LP16-6-2 120
benzo(a)anthracene LP16-6-2 640
benzo(a)pyrene LP16-6-2 630
benzo(b)fluoranthene LP16-1-1 6,900
benzo(g,h,i)perylene LP16-6-2 320
benzo(k)fluoranthene LP16-6-2 1,500
bis(2-ethylhexyl)phthalate LP16-5-2
LP16-5-1
4,300-240,000
dibenzofuran LP16-4-3 42
di-n-octyl phthalate LP16-4-1 2,000
ethylbenzene LP16-2-2
LP16-5-2
1-4,700
3-ethyl pyridine LP16-5-2 11,000
3-ethyl-4-methylpyridine LP16-4-3 46
fluoranthene LP16-2-3
LP16-6-2
36-550
fluorene LP16-1-3 60
indeno(1,2,3-cd)pyrene LP16-6-2 310
2,4 & 2,5-lutidine LP16-5-2 4,400
3,5-lutidine LP16-5-2 12,000
methylene chloride LP16-1-2
LP16-6-1
2-5
2-methyl-3-ethyl pyridine LP16-5-2 9,300
2-methyl-5-ethyl pyridine LP16-2-3 42-19,000
1-methylnaphthalene LP16-2-2
LP16-4-3
100-370
2-methylnaphthalene LP16-1-3
LP16-4-3
130-340
phenanthrene LP16-4-3
LP16-1-2
89-190
2-picoline LP16-4-3
LP16-5-2
39-9,600
3 & 4-picoline LP16-4-2
LP16-5-1
91-360,000
pyrene LP16-4-2
LP16-6-2
86-530
pyridine LP16-2-3
LP16-5-2
170-6,800
toluene LP16-6-1
LP16-5-2
4-20,000
xylenes, total LP16-4-2
LP16-5-2
5-24,000
Chemical Field ID Concentration Range - ppm
Inorganic Chemicals
aluminum LP16-5-2
LP16-1-1
1,430-8,750
arsenic LP16-2-2
LP16-6-2
2-6
barium LP16-2-1
LP16-1-1
3-89
benzene LP16-2-3
LP16-5-2
1-18,000
calcium LP16-6-3
LP16-2-1
54,400-437,000
chromium LP16-5-2
LP16-1-1
4-14
chrysene LP16-1-2
LP16-6-2
37-920
cobalt LP16-5-2
LP16-6-1
2-5
copper LP16-6-3
LP16-1-1
15-99
iron LP16-2-1
LP16-3-2
717-10,300
lead LP16-2-1
LP16-1-1
1-17
magnesium LP16-2-1
LP16-1-2
2,220-49,600
manganese LP16-2-1
LP16-1-1
13-543
mercury LP16-5-1 <1
nickel LP16-5-2
LP16-1-1
5-107
potassium LP16-1-1
LP16-2-3
84-625
sodium LP16-5-2
LP16-5-1
3,430-26,800
vanadium LP16-5-1
LP16-1-1
7-32
zinc LP16-5-2
LP16-1-1
25-175
On-Site Subsurface Soil Abandoned Railroad Trench Sample Results, May 1989.

(Data used to develop Table 2.)

Chemical Field ID Concentration Range - ppb
acenaphthene TP17-4-1
TP17-1-1
7,900-1,100,000
acenaphthylene TP17-4-1
TP17-5-1
6,700-29,000
acetone TP17-4-1 44
anthracene TP17-4-1
TP17-1-1
27,000-1,000,000
benzene TP17-4-1 4
benzo(a)anthracene TP17-4-1
TP17-1-1
78,000-670,000
benzo(a)pyrene TP17-2-1
TP17-3A-1
51,000-420,000
benzo(b)fluoranthene TP17-2-1
TP17-3A-1
64,000-1,000,000
benzo(g,h,i)perylene TP17-2-1
TP17-1-1
30,000-230,000
benzo(k)fluoranthene TP17-2-1
TP17-5-1
54,000-540,000
bis(2-ethylhexyl)phthalate TP17-2-1
TP17-1-1
15,000-160,000
2-butanone TP17-4-1 19
chrysene TP17-4-1
TP17-1-1
87,000-740,000
dibenz(a,h)anthracene TP17-1-1 130,000
dibenzofuran TP17-4-1
TP17-1-1
6,500-880,000
2,5-dimethyl phenol TP17-3A-1 12,000
3,5-dimethyl phenol TP17-3A-1
TP17-5-1D
15,000-79,000
ethylbenzene TP17-4-1
TP17-2-1
36-2,800
3-ethyl-4-methylpyridine TP17-3A-1 7,400
2-ethyl pyridine TP17-3A-1 57,000
3-ethyl pyridine TP17-3A-1 6,700
fluoranthene TP17-4-1
TP17-1-1
200,000-2,400,000
fluorene TP17-4-1
TP17-1-1
8,500-1,500,000
indeno(1,2,3-cd)pyrene TP17-2-1
TP17-1-1
25,000-200,000
2,4 & 2,5-lutidine TP17-3A-1 10,000
methylene chloride TP17-5-1 7
2-methyl-5-ethylpyridine TP17-3A-1 13,000
1-methylnaphthalene TP17-3A-1
TP17-1-1
23,000-520,000
2-methylnaphthalene TP17-4-1
TP17-1-1
2,600-1,000,000
3 & 4-methylphenol TP17-3A-1 11,000
4-methylphenol TP17-3A-1 11,000
naphthalene TP17-4-1
TP17-1-1
8,300-2,300,000
phenanthrene TP17-4-1
TP17-1-1
79,000-7,500,000
phenol TP17-3A-1 10,000
2-picoline TP17-3A-1 52,000
3 & 4-picoline TP17-2-1
TP17-3A-1
15,000-120,000
pyrene TP17-4-1
TP17-1-1
180,000-1,700,000
styrene TP17-3A-1
TP17-1-1
490-66,000
toluene TP17-4-1
TP17-2-1
11-3,000
xylenes TP17-4-1
TP17-1-1
210-590,000

ppm
aluminum TP17-5-1D
TP17-3A-1
4,900-10,900
arsenic TP17-2-1
TP17-1-1
6-15
barium TP17-2-1
TP17-4-1
37-3,060
beryllium TP17-2-1
TP17-1-1
TP17-4-1
<1-1
cadmium TP17-2-1
TP17-3A-1
1-5
calcium TP17-4-1
TP17-2-1
4,830-88,700
chromium TP17-2-1
TP17-3A-1
10-74
cobalt TP17-2-1
TP17-3A-1
4-11
copper TP17-2-1
TP17-4-1
31-1,640
iron TP17-2-1
TP17-1-1
11,800-27,900
lead TP17-2-1
TP17-5-1
8-413
magnesium TP17-1-1
TP17-2-1
3,580-33,600
manganese TP17-4-1
TP17-3A-1
107-2,570
mercury TP17-2-1
TP17-1-1
<1-3
nickel TP17-2-1
TP17-3A-1
14-77
potassium TP17-4-1
TP17-2-1
519-952
selenium TP17-5-1
TP17-1-1
1-2
sodium TP17-1-1
TP17-2-1
522-3,450
thallium TP17-4-1
TP17-1-1
1-8
vanadium TP17-2-1
TP17-3A-1
15-22
zinc TP17-2-1
TP17-3A-1
101-1,790

On-Site Subsurface Soil Former Sludge Treatment Pit Sample Results, May 1991

(Data used to develop Table 3.)

Chemical Field ID Concentration Range - ppb
acenaphthene TP18-1-S3
TP18-2-S2
95-460,000
acenaphthylene TP18-1-S3
TP18-2-S2
47-28,000
acetone TP18-2-S3D
TP18-1-S2
5-37
anthracene TP18-2-S3D
TP18-2-S2
87-390,000
benzene TP18-2-S3
TP18-2-S1
2-15
benzo(a)anthracene TP18-2-S3D
TP18-1-S2
130-120,000
benzo(a)pyrene TP18-2-S3D
TP18-2-S1
54-120,000
benzo(b)fluoranthene TP18-2-S3D
TP18-2-S1
120-260,000
benzo(g,h,i)perylene TP18-1-S3
TP18-2-S1
250-66,000
benzo(k)fluoranthene TP18-2-S2
TP18-1-S2
56,000-91,000
bis(2-ethylhexyl)phthalate TP18-2-S3
TP18-2-S2
45-28,000
chlorobenzene TP18-2-S3 2
chrysene TP18-2-S3D
TP18-1-S2
140-180,000
dibenz(a,h)anthracene TP18-2-S4 14,000
dibenzofuran TP18-1-S3
TP18-2-S2
120-400,000
3-ethyl pyridine TP18-2-S4D
TP18-2-S1
3,100-6,200
ethylbenzene TP18-1-S2
TP18-2-S2
95-960
fluorene TP18-2-S3D
TP18-2-S2
210-550,000
fluoranthene TP18-1-S3
TP18-2-S2
360-550,000
indeno(1,2,3-cd)pyrene TP18-1-S3D
TP18-2-S1
210-56,000
2,3-lutidine TP18-2-S1 2,800
2,4 & 2,5-lutidine TP18-2-S1 2,200
3,5-lutidine TP18-2-S3D
TP18-2-S4D
110-12,000
2-methyl-5-ethylpyridine TP18-2-S3D 69
methylene chloride TP18-1-S3
TP18-2-S4
1-19
1-methylnaphthalene TP18-1-S1
TP18-2-S1
3,000-180,000
2-methylnaphthalene TP18-2-S3D
TP18-2-S2
60-400,000
naphthalene TP18-1-S3
TP18-2-S2
97-1,300,000
pentachlorophenol TP18-1-S2 31,000
phenanthrene TP18-1-S3
TP18-2-S2
470-1,400,000
2-picoline TP18-2-S4D
TP18-2-S1
2,200-3,900
3 & 4-picoline TP18-2-S4D
TP18-2-S1
7,900-15,000
pyrene TP18-2-S3D
TP18-2-S2
340-400,000
styrene TP18-2-S1
TP18-2-S2
52-1,900
toluene TP18-2-S3
TP18-2-S2
2-870
1,1,1-trichloroethane TP18-2-S4
TP18-2-S4D
29-54
trichloroethylene TP18-2-S3 2
Xylenes, Total TP18-2-S2 7,900
Chemical Field ID Concentration Range - ppm
aluminum TP18-2-S3
TP18-1-S1
1,590-14,200
arsenic TP18-2-S3
TP18-2-S1
4-14
barium TP18-2-S3
TP18-1-S1
7-78
beryllium TP18-2-S4D 1
cadmium TP18-2-S4D
TP18-1-S2
2-6
calcium TP18-2-S4
TP18-1-S3
8,980-140,000
chromium TP18-2-S3
TP18-1-S1
4-22
cobalt TP18-2-S3
TP18-1-S1
2-9
copper TP18-2-S3
TP18-2-S4D
8-504
iron TP18-2-S3
TP18-2-S4D
5,040-24,300
lead TP18-2-S3
TP18-1-S2
3-594
magnesium TP18-2-S4
TP18-1-S3
1,840-40,400
manganese TP18-2-S3
TP18-1-S2
162-669
mercury TP18-1-S1
TP18-1-S2
TP18-2-S4
<1
nickel TP18-2-S3
TP18-1-S2
6-33
potassium TP18-2-S3
TP18-2-S1
285-927
silver TP18-1-S2 2
sodium TP18-2-S1 376
vanadium TP18-2-S3
TP18-1-S1
7-32
zinc TP18-2-S3
TP18-1-S2
18-1,080

On-Site Subsurface Soil South Landfill Area Test Pit Sample Results, June 1990 (Phase III).

Chemical Field ID Concentration Range - ppb
acenaphthene TP19-3-S2-1
TP19-4-S2-1
54-1,500,000
acenaphthylene TP19-12-S1-1
TP19-4-S2-1
58-72,000
acetone TP19-7-S1-1
TP19-2-S1-1
6-180
anthracene TP19-1-S2-1
TP19-4-S2-1
43-850,000
benzene TP19-10-S-1
TP19-2-S1-1
3-24
benzo(a)anthracene TP19-1-S1-1
TP19-12-S2-7
73-830,000
benzo(a)pyrene TP19-7-S1-1
TP19-12-S2-7
35-1,300,000
benzo(b)fluoranthene TP19-7-S1-1
TP19-4-S2-1
62-1,100,000
benzo(g,h,i)perylene TP19-6-S1-1
TP19-12-S2-7
63-1,000,000
benzo(k)fluoranthene TP19-7-S1-1
TP19-12-S2-7
34-1,000,000
benzoic acid TP19-14-S2-1
TP19-3-S1-3
61-84
bis(2-ethylhexyl)phthalate TP19-9-S1-1
TP19-2-S2-1
47-810
2-butanone TP19-5-S1-1
TP19-2-S1-1
26-40
carbon disulfide TP19-2-S1-1 1
chloroethane TP19-14-S1-1 3
chrysene TP19-14-S1-1
TP19-12-S2-7
42-1,200,000
dibenz(a,h)anthracene TP19-9-S1-1
TP19-12-S2-7
41-490,000
dibenzofuran TP19-13-S1-1
TP19-4-S2-1
42-1,400,000
3,5-dimethyl phenol TP19-3-S2-1
TP19-12-S1-1
51-60
di-n-butyl phthalate TP19-14-S2-1 39
di-n-octyl phthalate TP19-2-S2-1 150
3-ethyl-4-methyl pyridine TP19-2-S1-1
TP19-2-S2-1
850-970
2-ethyl pyridine TP19-2-S1-1
TP19-2-S2-1
4,500-5,200
3-ethyl pyridine TP19-2-S1-1
TP19-9-S2-1
2,100-4,600
4-ethyl pyridine TP19-2-S1-1
TP19-2-S2-1
1,100-1,800
ethylbenzene TP19-2-S2-1
TP19--5-S2-1
3-3,700
fluoranthene TP19-14-S1-1
TP19-4-S2-1
40-2,700,000
fluorene TP19-3-S2-1
TP19-4-S2-1
71-2,200,000
indeno(1,2,3-cd)pyrene TP19-6-S1-1
TP19-12-S2-7
51-810,000
2,3-lutidine TP19-2-S1-1
TP19-2-S2-1
420-660
2,4 & 2,5-lutidine TP19-2-S1-1
TP19-2-S2-1
350-590
2,6-lutidine TP19-2-S1-1
TP19-2-S2-1
110-210
3,4-lutidine TP19-2-S1-1
TP19-2-S2-1
1,000-1,600
3,5-lutidine TP19-2-S1-1
TP19-2-S2-1
1,800-3,000
2-methyl-3-ethylpyridine TP19-2-S1-1
TP19-2-S2-1
470-730
2-methyl-5-ethylpyridine TP19-2-S1-1
TP19-9-S2-1
970-11,000
4-methyl-2-pentanone TP19-2-S1-1 170
2-methyl phenol TP19-2-S2-1 260
4-methyl phenol TP19-12-S1-1
TP19-5-S1-1
59-9,900
3 & 4-methylphenol TP19-12-S1-1
TP19-5-S1-1
59-9,900
methylene chloride TP19-2-S2-1
TP19-11-S2-3
2-31
1-methylnaphthalene TP19-14-S2-1
TP19-4-S2-1
51-810,000
2-methylnaphthalene TP19-13-S1-1
TP19-4-S2-1
39-1,400,000
naphthalene TP19-13-S1-1
TP19-4-S2-1
88-1,800,000
phenanthrene TP19-1-S1-1
TP19-4-S2-1
45-5,600,000
phenol TP19-3-S2-1
TP19-5-S2-1
51-9,500
2-picoline TP19-2-S2-1
TP19-10-S2-1
1,500-37,000
3 & 4-picoline TP19-2-S1-1
TP19-2-S2-1
3,400-4,300
pyrene TP19-7-S1-1
TP19-4-S2-1
46-1,800,000
pyridine TP19-2-S1-1
TP19-2-S2-1
530-650
styrene TP19-2-S1-1
TP19-5-S2-1
14-1,300
toluene TP19-15-S1-1
TP19-5-S2-1
1-1,500
trichloroethylene TP19-15-S1-1 3
xylenes, total TP19-5-S1-1
TP19-10-S2-1
5-2,200
Chemical Field ID Concentration Range - ppm
aluminum TP19-2-S2-1
TP19-3-S1-1
1,310-19,100
antimony TP19-7-S1-1 6
arsenic TP19-2-S1-1
TP19-9-S1-1
1-19
barium TP19-14-S1-1
TP19-11-S1-3
7-3,100
beryllium TP19-4-S2-1
TP19-6-S2-3
1-2
cadmium TP19-7-S1-1
TP19-4-S2-1
1-4
calcium TP19-5-S1-1
TP19-6-S1-1
1,710-188,000
chromium TP19-14-S1-1
TP19-2-S2-1
5-43
cobalt TP19-8-S1-1
TP19-5-S1-1
2-10
copper TP19-14-S1-1
TP19-10-S2-1
9-241
iron TP19-3-S2-1
TP19-2-S2-1
6,550-29,300
lead TP19-15-S1-1
TP19-13-S2-1
3-219
magnesium TP19-2-S2-1
TP19-6-S1-1
575-43,800
manganese TP19-2-S1-1
TP19-12-S1-1
90-810
mercury TP19-7-S1-1
TP19-10-S2-1
<1-1
nickel TP19-15-S1-1
TP19-5-S2-1
6-34
potassium TP19-12-S2-1
TP19-13-S1-1
253-1,250
selenium TP19-8-S1-1
TP19-8-S2-1
1-4
silver TP19-7-S1-1 1
sodium TP19-7-S1-1
TP19-2-S2-1
257-716
thallium TP19-3-S1-3
TP19-4-S2-1
<1-1
vanadium TP19-2-S1-1
TP19-3-S1-1
6-36
zinc TP19-14-S1-1
TP19-4-S2-1
20-236
On-Site South Landfill Area Soil Boring Sample Results, May 1989 (Phase II).

(Data used to develop Table 4.)

Chemical Field ID Concentration Range - ppb
acenaphthene SB19-1-3
SB19-4-3
78-26,000,000
acenaphthylene SB19-3-2
SB19-4-3
52-170,000
acetone SB19-1-3
SB19-3-2D
18-160
anthracene SB19-2-2
SB19-5-8
63-420,000
benzene SB19-4-4 9,100
benzo(a)anthracene SB19-1-1
SB19-4-3
65-680,000
benzo(a)pyrene SB19-1-3
SB19-4-3
46-340,000
benzo(b)fluoranthene SB19-1-3
SB19-4-3
43-400,000
benzo(g,h,i)perylene SB19-4-1
SB19-2-1
120-180,000
benzo(k)fluoranthene SB19-1-1
SB19-4-3
51-250,000
bis(2-chloroethoxyl)methane SB19-4-2 37,000
bis(2-ethylhexyl)phthalate SB19-1-3
SB19-4-3
91-30,000
2-butanone SB19-3-2 17
carbon disulfide SB19-2-1 12
chloromethane SB19-5-8 1,500
chrysene SB19-1-1
SB19-4-3
72-810,000
dibenzofuran SB19-1-3
SB19-4-3
82-2,400,000
2,3-dimethyl phenol SB19-1-3 100
2,6-dimethyl phenol SB19-1-3 63
3,4-dimethyl phenol SB19-1-3 170
3,5-dimethyl phenol SB19-1-3 1,300
di-n-butylphthalate SB19-1-3
SB19-1-1
190-290
3-ethyl-4-methylpyridine SB19-1-3
SB19-4-3
290-480,000
2-ethyl pyridine SB19-4-1
SB19-4-3
130-1,000,000
3-ethyl pyridine SB19-4-1
SB19-4-3
110-730,000
4-ethyl pyridine SB19-1-3
SB19-4-3
310-250,000
ethylbenzene SB19-1-2
SB19-4-4
380-7,200
fluoranthene SB19-1-1
SB19-4-3
75-3,200,000
fluorene SB19-3-2
SB19-4-3
55-2,900,000
indeno(1,2,3-cd)pyrene SB19-2-3
SB19-2-1
48-140,000
2,3-lutidine SB19-1-3
SB19-4-3
110-160,000
2,4 & 2,5-lutidine SB19-5-6
SB19-4-3
81-280,000
3,4-lutidine SB19-1-3
SB19-4-3
190-230,000
3,5-lutidine SB19-4-1
SB19-4-3
220-620,000
2-methyl-5-ethylpyridine SB19-4-1
SB19-4-3
130-810,000
2-methyl-3-ethyl
pyridine
SB19-1-3
SB19-4-3
120-290,000
4-methyl-2-pentanone SB19-1-3 16
methylene chloride SB19-3-2
SB19-2-1
3-92
1-methylnaphthalene SB19-1-3
SB19-4-3
40-1,000,000
2-methylnaphthalene SB19-1-1
SB19-4-3
73-2,500,000
2-methylphenol SB19-1-3 340
3 & 4-methylphenol SB19-1-3
SB19-1-2
560-9,900
4-methylphenol SB19-1-3
SB19-1-2
560-9,900
naphthalene SB19-2-2
SB19-4-3
44-7,900,000
phenanthrene SB19-5-3
SB19-1-2
41-560,000
phenol SB19-1-1
SB19-4-2
55-6,500
2-picoline SB19-1-3
SB19-4-3
240-460,000
3 & 4-picoline SB19-1-3
SB19-4-3
1,300-700,000
pyrene SB19-1-1
SB19-4-3
72-2,100,000
pyridine SB19-4-3 130,000
styrene SB19-1-3
SB19-4-4
1-31,000
toluene SB19-1-2
SB19-4-4
1,400-40,000
trichloroethylene SB19-5-6 8
xylenes, total SB19-1-3
SB19-4-4
9-110,000
Chemical Field ID Concentration Range - ppm
aluminum SB19-5-3
SB19-3-2
1,540-17,300
arsenic SB19-3-1
SB19-3-2
1-10
barium SB19-5-3
SB19-4-1
7-140
beryllium SB19-2-1
SB19-4-1
<1-1
cadmium SB19-4-1
SB19-1-1
2-7
calcium SB19-2-1
SB19-5-6
2,690-181,000
chromium SB19-5-6
SB19-4-1
4-28
cobalt SB19-5-6
SB19-3-2
1-10
copper SB19-3-1
SB19-1-1
4-105
iron SB19-5-6
SB19-3-2
4,630-24,800
lead SB19-1-3
SB19-1-1
3-329
magnesium SB19-3-1
SB19-5-6
457-64,900
manganese SB19-5-3
SB19-2-1
162-1,350
nickel SB19-3-1
SB19-1-1
5-316
potassium SB19-1-1
SB19-3-2
99-1,460
sodium SB19-2-3
SB19-1-2
313-3,520
vanadium SB19-3-1
SB19-3-2
3-33
zinc SB19-5-6
SB19-1-1
16-988
On-Site Subsurface Soil Former Drainage Ditch Area Sample Results, May 1989 (Phase II).

(Data used to develop Table 5.)

Chemical Field ID Concentration Range - ppb
acenaphthene TP20-3A-1
TP20-4-1
670-9,900,000
acenaphthylene TP20-3-1
TP20-2A-1
3,700-10,000
acetone TP20-5-1
TP20-4-1
42-72,000
anthracene TP20-3A-1
TP20-4-1
51-10,000,000
benzo(a)anthracene TP20-3-1
TP20-4-1
12,000-2,600,000
benzo(a)pyrene TP20-2-1
TP20-4-1
12,000-960,000
benzo(b)fluoranthene TP20-1-1
TP20-4-1
55-1,300,000
benzo(g,h,i)perylene TP20-2A-1
TP20-3-1
25,000-29,000
benzo(k)fluoranthene TP20-3-1
TP20-4-1
34,000-1,300,000
bis(2-ethylhexyl)phthalate TP20-1-1
TP20-4-1
67-820,000
2-butanone TP20-5-2
TP20-4-2
28-60
chrysene TP20-3-1
TP20-4-1
21,000-3,100,000
dibenzofuran TP20-5-2
TP20-4-1
410-9,200,000
ethylbenzene TP20-4-1 12,000
fluoranthene TP20-3A-1
TP20-4-1
100-13,000,000
fluorene TP20-5-2
TP20-4-1
230-12,000,000
hexachlorobenzene TP20-4-2 24,000
indeno(1,2,3-cd)pyrene TP20-3-1
TP20-2A-1
20,000-21,000
2,3-lutidine TP20-2-1 7,500
2,4 & 2,5-lutidine TP20-2-1 81,000
2,6-lutidine TP20-2-1 39,000
3,4-lutidine TP20-2-1 19,000
3,5-lutidine TP20-2-1 9,700
2-methyl-5-ethylpyridine TP20-2-1 7,500
methylene chloride TP20-1-1 2
1-methylnaphthalene TP20-3A-1
TP20-4-1
130-3,000,000
2-methylnaphthalene TP20-3A-1
TP20-4-1
45-6,000,000
naphthalene TP20-3A-1
TP20-4-1
47-14,000,000
phenanthrene TP20-3A-1
TP20-4-1
200-31,000,000
2-picoline TP20-2-1 130,000
3 & 4-picoline TP20-2-1 36,000
pyrene TP20-3A-1
TP20-4-1
75-8,300,000
styrene TP20-4-1 10,000
toluene TP20-4-1 13,000
xylenes, total TP20-4-2
TP20-4-1
2-74,000
Chemical Field ID Concentration Range - ppm
aluminum TP20-1-1
TP20-5-1
1,790-10,300
arsenic TP20-1-1
TP20-5-1
5-11
barium TP20-1-1
TP20-4-1
8-181
beryllium TP20-2A-1
TP20-2-1
<1-2
cadmium TP20-5-1
TP20-4-1
1-4
calcium TP20-3-1
TP20-4-1
2,130-166,000
chromium TP20-1-1
TP20-4-1
5-20
cobalt TP20-1-1
TP20-3A-1
3-13
copper TP20-5-2
TP20-4-1
14-498
iron TP20-1-1
TP20-2-1
6,280-52,300
lead TP20-5-2
TP20-4-1
5-81
magnesium TP20-2-1
TP20-1-1
985-58,200
manganese TP20-3-1
TP20-3A-1
203-1,090
mercury TP20-2A-1
TP20-4-1
<1-2
nickel TP20-1-1
TP20-4-1
8-46
potassium TP20-1-1
TP20-2-1
340-853
silver TP20-5-2
TP20-4-1
1-2
sodium TP20-4-1 657
thallium TP20-4-1 1
vanadium TP20-5-2
TP20-2-1
8-89
zinc TP20-5-2
TP20-4-1
30-732
On-Site Surface Soil Sample Results, July 1990 (Phase III).

(Data used to develop Table 6.)

 
Chemical Field ID Concentration Range - ppb
acenaphthene SS28-1
SS03-3
41-300,000
acenaphthylene SS37-1
SS4-1
39-28,000
anthracene SS29-3
SS03-3
86-690,000
benzo(a)anthracene SS5-1
SS03-3
42-2,400,000
benzo(a)pyrene SS5-1
SS03-3
73-2,000,000
benzo(b)fluoranthene SS31-1
SS03-3
120-3,500,000
benzo(g,h,i)perylene SS5-1
SS03-3
140-1,300,000
benzo(k)fluoranthene SS31-1
SS03-3
120-640,000
benzoic acid SS37-1
SS21-1
SS27-1
70-490
bis(2-ethylhexyl)phthalate SS28-1
SS34-1
63-550
butylbenzylphthalate SS34-1 83
4-chloro-3-methylphenol SS27-1 50
chrysene SS5-1
SS03-3
75-2,700,000
dibenz(a,h)anthracene SS5-1
SS03-3
44-550,000
dibenzofuran SS28-1
SS03-3
57-140,000
di-n-butylphthalate SS29-1
SS34-1
41-310
fluoranthene SS22-1
SS03-3
170-4,500,000
fluorene SS28-1
SS03-3
45-330,000
indeno(1,2,3-cd)pyrene SS31-1
SS03-3
62-1,200,000
2-methyl-3-ethylpyridine SS23-1 2,800
2-methyl-5-ethylpyridine SS23-1 4,500
1-methylnaphthalene SS29-1
SS4-1
50-13,000
2-methylnaphthalene SS29-3
SS13-1
67-25,000
4-methylphenol SS27 52
naphthalene SS29-1
SS03-3
53-99,000
pentachlorophenol SS27-1
SS13-1
200-5,900
phenanthrene SS37-1
SS03-3
57-2,800,000
3 & 4-picoline SS24-1
SS23-1
77-4,500
pyrene SS5-1
SS03-3
50-4,000,000
Chemical Field ID Concentration Range - ppm
aluminum SS21-1
SS7-1
2,690-12,000
arsenic SS11-1
SS03-1
2-16
barium SS33-1
SS03-1
30-3,940
beryllium SS33-1
SS11-1
<1-2
cadmium SS37-1
SS4-1
1-8
calcium SS9-1
SS33-1
2,080-136,000
chromium SS11-1
SS4-1
7-50
cobalt SS33-1
SS4-1
3-14
copper SS5-1
SS15-1
23-2,280
iron SS33-1
SS4-1
7,340-67,900
lead SS5-1
SS27-1
9-1,310
magnesium SS9-1
SS33-1
281-52,000
manganese SS21-1
SS23-1
92-1,720
mercury SS01-1
SS13-1
<1-3
nickel SS33-1
SS4-1
10-71
potassium SS9-1
SS27-1
353-1,210
selenium SS11-1
SS10-1
<1-1
silver SS25-1 2
sodium SS19-1
SS01-1
252-346
thallium SS16-1
SS03-3
<1-2
vanadium SS33-1
SS19-1
13-39
zinc SS9-1
SS10-1
37-1,330
On-Site Surface Water Sample Results, July 1989 (Phase II, Round 1)

(Data used to develop Table 7.)

Chemical Field ID Concentration Range - ppb
acetone SW01-W1-1 320
aluminum SW01-W1-1 1,120
arsenic SW01-W1-1 13
barium SW01-W1-1 43
beryllium SW01-W1-1 1
calcium SW01-W1-1 33,400
chromium SW01-W1-1 8
cobalt SW01-W1-1 9
copper SW01-W1-1 678
3-ethyl-4-methyl pyridine SW01-W1-1 61
2-ethyl pyridine SW01-W1-1 96
3-ethyl pyridine SW01-W1-1 35
4-ethyl pyridine SW01-W1-1 39
iron SW01-W1-1 3,480
lead SW01-W1-1 44
2,3-lutidine SW01-W1-1 22
2,6-lutidine SW01-W1-1 35
3,4-lutidine SW01-W1-1 42
3,5-lutidine SW01-W1-1 400
magnesium SW01-W1-1 3,490
manganese SW01-W1-1 182
2-methyl-3-ethyl pyridine SW01-W1-1 20
2-methyl-5-ethyl pyridine SW01-W1-1 39
methylene chloride SW01-W1-1 7
nickel SW01-W1-1 51
2-picoline SW01-W1-1 240
3 & 4-picoline SW01-W1-1 6,600
potassium SW01-W1-1 6,640
pyridine SW01-W1-1 5,000
sodium SW01-W1-1 589,000
styrene SW01-W1-1 3
toluene SW01-W1-1 160
vanadium SW01-W1-1 41
xylenes, total SW01-W1-1 8
zinc SW01-W1-1 519
On-Site Groundwater Sample Results, August/October 1989 (Phase II).

(Data used to develop Table 8.)

Chemical Field ID Concentration Range - ppb
acetone RI05D(1)
RI05S(1)
1-410
benzene RI11S(1)
RI05S(1)
1-7,700
bis(2-ethylhexyl)phthalate RI02D(1)
RI04D(1)
5-83
2-butanone RI-3S(1)
RI05S(1)
20-130
chloroform RI07D(1)
RI05D(1)
3-25
1,2-dichloroethene(total) RI08S(1)
TWS-10
1-98
2,4-dimethylphenol RI06S(1) 43
di-n-octyl phthalate RI08S(1)
RI06S(1)
2-4
3-ethyl-4-methylpyridine RI15M(2)
RI05S(1)
4-120
2-ethyl pyridine RI06D(2)
RI04D(1)
2-430
3-ethyl pyridine RW1(1)
RI15D(2)
2-350
4-ethyl pyridine RI06S(2)
RI15D(1)
6-22
ethylbenzene RI04S(1)
RI02S(1)
12-220
2,3-lutidine RI06D(2)
RI04D(1)
2-1,400
2,4 & 2,5-lutidine RI11S(1)
RI04D(1)
3-2,700
2,6-lutidine RI02S(2)
RI04D(1)
4-810
3,4-lutidine ICW5M(1)
RI02S(1)
2-250
3,5-lutidine RI05D(1)
RI04D(1)
2-5,200
2-methyl-3-ethylpyridine ICW11(1)
RI04D(1)
3-1,700
2-methyl-5-ethylpyridine RI12S(2)
RI04D(1)
2-1,200
methylene chloride RI03D(1)
RI05S(1)
2-120
phenol RI02D(1)
RI04S(1)
27-38
2-picoline RI06D(2)
RI04D(1)
5-1,400
3 & 4-picoline RI02D(2)
RI06S(1)
5-1,200
pyridine RI06S(2)
RI06S(1)
13-79
trans-1,3-dichloro-propene MW-4 2
1,1,1-trichloroethane RI09S(2)
TWS-10(1)
1-19
trichloroethylene RI08S(2)
RI09S(2)
5-110
toluene RI06S(2)
RI05S(1)
3-62
xylenes, total RI06D(2)
RI02S(1)
4-34
Unfiltered Samples (Round 1)
aluminum RI09D(1)
RI01S(1)
226-172,000
arsenic RI05D(1)
RI04D(1)
2-72
barium RI01S(1)
RI02S(1)
82-1,380
beryllium RI06D(1)
RI01S(1)
1-10
cadmium RI02D(1) 4
calcium RI06S(1)
RI09S(1)
44,200-3,840,000
chromium RI01D(1)
RI09S(1)
12-228
cobalt RI03D(1)
RI09S(1)
9-237
copper RI01D(1)
RI01S(1)
8-816
iron RI06S(1)
RI02S(1)
36-489,000
lead RI05D(1)
RI01S(1)
2-344
magnesium RI03S(1)
RI02S(1)
23,900-1,180,000
manganese RI02D(1)
RI09S(1)
54-15,400
mercury RI07D(1)
RI09S(1)
<1-1
nickel RI03D(1)
RI01S(1)
9-406
potassium RI06D(1)
RI09S(1)
5,620-16,200
selenium RI04S(1)
RI09S(1)
2-3
silver RI01S(1)
RI06S(1)
9-35
sodium RI01D(1)
RI06D(1)
8,230-450,000
vanadium RI03D(1)
RI01S(1)
7-429
zinc RI09D(1)
RI09S(1)
2-1,960
Chemical Field ID Concentration Range - ppm
ammonia (Round 1) RI01S
RI11M
<1-43
ammonia (Round 2) RI01S
RI04D
<1-44
On-Site Groundwater Sample Results, July 1990 (Phase III)

(Data used to develop Table 8.)

Chemical Field ID Concentration Range - ppb
acetone RI02-W1-1
RI18-W1-1
5-4,300
benzene RI15-W1-1
RI04-W3-1
1-6,700
bis(2-ethylhexyl)phthalate RI20-W1-1 3
bromodichloromethane RI16-W3-1 2
2-butanone RI18-W3-1 5
chloroform RI22-W1-1
RI18-W3-1
5-41
1,2-dichloroethane RI15-W2-1
RI05-W1-1
2-60
1,2-dichloroethene (total) RI07-W1-1
RI09-W1-1
1-4
2,5-dimethyl phenol RI06-W1-1 8
2,6-dimethyl phenol RI06-W1-1 12
3,4-dimethyl phenol RI06-W1-1 8
3,5-dimethyl phenol RI06-W1-1 6
3-ethyl-4-methyl pyridine RI06-W1-1
RI17-W1-1
6-140
2-ethyl pyridine ICW5-W1-1
RI18-W1-1
3-3,100
3-ethyl pyridine RI11-W2-1
RI18-W1-1
9-800
4-ethyl pyridine RI06-W1-1
RI15-W3-1
5-8
ethylbenzene RI18-W3-1
RI17-W1-1
5-160
2,3-lutidine RI02-W3-1
RI18-W1-1
6-960
2,4 & 2,5-lutidine RI03-W3-1
RI04-W3-1
3-620
2,6-lutidine RI15-W2-1
RI18-W1-1
2-2,000
3,4-lutidine RI04-W1-1
RI17-W1-1
3-180
3,5-lutidine RI19-W3-1
RI04-W3-1
3-2,600
2-methyl-3-ethyl pyridine RI06-W1-1
RI18-W1-1
4-640
2-methyl-5-ethyl pyridine RI06-W3-1
RI18-W1-1
3-570
methylene chloride RI15-W1-1
RI05-W1-1
1-80
3 & 4-methylphenol RI18-W3-1
RI18-W1-1
19-40
2-picoline ICW11-W1-1
RI18-W1-3
3-250,000
3 & 4-picoline ICW11-W1-1
RI18-W1-1
2-24,000
pyridine RI17-W3-1
RI18-W1-1
6-35,000
tetrachloroethene RI22-W1-1 2
toluene RI02-W1-1
RI18-W1-3
3-3,800
1,1,1-trichloroethane RI09-W1-1
RI20-W1-1
1-2
trichloroethylene RI20-W1-1
RI09-W1-1
1-110
xylenes, total RI02-W1-1
RI18-W1-3
13-8,500

(ppm)
ammonia RI07-W3-1
RI17-W1-1
<1-53
Off-Site Subsurface Soil Sample Results, July 1990 (Phase III)

(Data used to develop Table 9.)

Chemical Field ID Concentration Range - ppb
acenaphthene SS41-1
SS39-3
45-100
acenaphthylene SS47-1
SS39-3
59-390
aluminum SS43-1
SS46-1
4,720-11,800
anthracene SS47-1
SS39-3
54-320
arsenic SS47-1
SS40-1
4-13
barium SS43-1
SS46-1
33-129
benzo(a)anthracene SS40-1
SS39-1
38-2,400
benzo(a)pyrene SS40-1
SS39-1
46-2,900
benzo(b)fluoranthene SS40-1
SS39-3
100-3,500
benzo(g,h,i)perylene SS44-1
SS39-1
140-2,700
benzo(k)fluoranthene SS43-1
SS39-3
240-6,200
benzoic acid SS41-1
SS39-1
130-230
beryllium SS43-1
SS46-1
<1-1
bis(2-ethylhexyl)phthalate SS47-1
SS45-1
55-730
butylbenzylphthalate SS47-1 360
cadmium SS43-1
SS45-1
1-9
calcium SS39-1
SS43-1
23,700-105,000
chromium SS38-1
SS45-1
9-28
chrysene SS40-1
SS39-1
66-3,400
cobalt SS38-1
SS46-1
4-9
copper SS38-1
SS45-1
51-746
dibenz(a,h)anthracene SS44-1
SS39-1
45-720
dibenzofuran SS38-1
SS41-1
67-210
di-n-butylphthalate SS41-1
SS47-1
40-87
di-n-octyl phthalate SS38-1 180
fluorene SS41-1
SS39-3
59-230
indeno(1,2,3-cd)pyrene SS44-1
SS39-1
120-2,100
iron SS38-1
SS46-1
10,200-21,900
lead SS40-1
SS45-1
22-913
magnesium SS44-1
SS42-1
3,600-33,400
manganese SS43-1
SS46-1
429-943
mercury SS39-3
SS45-1
<1
1-methylnaphthalene SS38-1
SS41-1
64-360
2-methylnaphthalene SS46-1
SS41-1
86-380
naphthalene SS38-1
SS41-1
100-340
nickel SS38-1
SS45-1
11-26
4-nitrophenol SS39-1 120
n-nitrosodi-phenylamine SS38-1 86
pentachlorophenol SS42-1
SS39-1
170-200
phenanthrene SS43-1
SS39-1
110-3,300
potassium SS43-1
SS46-1
534-1,320
pyrene SS40-1
SS39-1
59-7,700
vanadium SS46-1
SS43-1
32-356
zinc SS40-1
SS45-1
61-1,100
Off-Site Surface Water Sample Results, April 1988 (Phase I)

(Data used to develop Table 10.)

Chemical Field ID Concentration Range - ppb
acetone SW-5
SW-1
4-8
ammonia SW-2
SW-5
<1,000-4,000
barium SW-7
SW-5
30-150
bis(2-ethylhexyl)phthalate SW-7
SW-3
3-10
calcium SW-7A
SW-4
101-79,700
chromium SW-3 7
di-n-octyl phthalate SW-3
SW-2
2
3-ethyl-4-methylpyridine SW-5A 8
lead SW-2
SW-4
2-8
2,4 & 2,5-lutidine SW-5
SW-5A
4-5
3,5-lutidine SW-3
SW-5A
3-18
mercury SW-7A
SW-5
<1-1
2-methyl-3-ethylpyridine SW-5
SW-5A
3-4
2-methyl-5-ethylpyridine SW-5
SW-5A
2-3
methylene chloride SW-1 3
4-nitrophenol SW-5 3
tetrachloroethene SW-2
SW-3
2
trans-1,2-dichloroethene SW-1
SW-2
1
1,1,1-trichloroethane SW-3
SW-4
1
magnesium SW-7
SW-6
1,200-31,800
potassium SW-7
SW-1
845-5,830
sodium SW-7
SW-6
11,800-57,600
Off-Site Groundwater Sample Results, April 1988 (Phase I).

(Data used to develop Table 11.)

Chemical Field ID Concentration Range - ppb
acetone RW-3
TWS-1
1-14
aluminum MW-1
MW-6
37-6,250
ammonia ICW-7
MW-3A
<1,000-51,000
arsenic ICW-9
MW-4
2-43
barium TWS-2
RW-4
14-346
benzene MW-8
RW-1A
1-600
benzoic acid ICW-3 2
bis(2-ethylhexyl)phthalate ICW-6
MW-3A
2-170
bromodichloromethane MW-1 12
2-butanone MW-1 6
cadmium ICW-3 9
calcium ICW-7A
MW-4
126-161,000
chloroform ICW-3 63
chloromethane ICW-4
ICW-12
2-3
chromium ICW-13
MW-5
10-46
cobalt MW-5
MW-6
6-12
copper ICW-6
ICW-11
7-2,210
cyanide ICW-8
MW-5
13-14
1,1-dichloroethane MW-7
MW-8
7-9
1,1-dichloroethene MW-8 2
di-n-octyl phthalate MW-3A
ICW-10
3-29
3-ethyl-4-methyl pyridine ICW-11
MW-3
4-170
2-ethyl pyridine ICW-11
MW-3
4-82
3-ethyl pyridine RW-1
MW-3
2-290
2-hexanone RW-3A 2
iron ICW-2A
MW-4
107-127,100
lead ICW-1
MW-4
2-2,340
2,3-lutidine RW-1
MW-3
10-200
2,4 & 2,5-lutidine RW-1
MW-3
25-350
2,6-lutidine ICW-11
MW-3
10-78
3,4-lutidine TW-1
MW-3
4-82
3,5-lutidine TWS-1
MW-3
31-510
magnesium ICW-2A
MW-8
107-42,600
manganese RW-3
MW-4
8-918
2-methyl-3-ethyl pyridine TWS-1
MW-3
3-110
2-methyl-5-ethyl pyridine ICW-11
MW-3
7-260
methylene chloride ICW-4
ICW-5
1-12
nickel ICW-8
MW-5
11-54
4-nitrophenol ICW-10 2
2-picoline ICW-11
MW-3
16-930
3 & 4-picoline ICW-5A
MW-3
32-1,100
potassium ICW-2
ICW-8
1,190-34,000
sodium ICW-4
ICW-13
6,790-340,000
thallium ICW-10
TWS-1
2-3
trans-1,2-dichloroethene MW-7
MW-8
2-42
trichloroethylene MW-1
RW-3
2-86
vanadium ICW-3
MW-6
6-20
vinyl chloride ICW-7
ICW-9
2-9
zinc ICW-5A
ICW-13
2-9,570



APPENDIX C - COMMENTS & RESPONSES

1. COMMENT I question the use of the word "indeterminate" public health hazard; suggest changing it to "there may be a potential health hazard posed by off-site surface soil".

RESPONSE The word "indeterminate" is used in this sentence to modify the level of a health hazard posed by the off-site surface soil. Indeterminate public health hazard is one of four conclusion categories provided by ATSDR to classify a site.
2. COMMENT I disagree that there is no data or information available for surface soil and that humans may be exposed to contaminants in this medium. Off-site surface soil as defined in the RI report (0 to 6 inches) was sampled in off-site areas near the site and is available for analysis. In addition, at EPA's request, additional off-site soil samples in locations further from the site are being taken now for an analysis of background soil concentrations. These data should be evaluated for potential exposures of off-site residents and the public health assessment should be revised.

This public health assessment defines surface soil as soil from 0 to 3 inches in depth. During the preparation of the RI sampling plan, EPA agreed that samples taken from 0 to 6 inches are surface soil. We believe that ATSDR should be consistent with EPA and use the surface soil data from the RI.


RESPONSE We agree that EPA and ATSDR standard sampling levels should be consistent; unfortunately, they are not. As the surface soil definitions are not the same for these two agencies, we have to make appropriate recommendations based on the information provided to us by ATSDR.
3. COMMENT In the Summary of the document, the date and reference for the epidemiologic study mentioned should be added.

RESPONSE The information was reviewed and appropriate changes were made to the document.
4. COMMENT In the Summary of the document, the date of the signing of the ROD is incorrect.

RESPONSE The data have been reviewed and the appropriate changes were made to the document.
5. COMMENT The recommendation to take remedial actions to prevent any further migration of the groundwater plume from the site should be pursuant to the Record of Decision (ROD).

RESPONSE Our recommendations are not governed by or limited to those found in the ROD.
6. COMMENT Recommendation #3 should include "long-term exposure to volatilized chemicals, which may emanate from known areas of contamination on the site".

RESPONSE Recommendation #3 also refers to potential industrial worker exposure at the Bridgeport Brass Company, which lies in the path of the groundwater plume. The sentence has been changed to reflect this.
7. COMMENT I disagree with recommendation #5 based on the results of the Final Risk Assessment (ENSR, August 1991). This recommendation implies that current risks to on-site workers are unacceptable. Long-term risks estimated in the risk assessment for on-site workers were all within or below EPA's target risk range for Superfund sites; these results do not indicate a need for immediate action.

The recommendation should read "provide on-site workers with adequate protective equipment and training in accordance with 29 CFR 1910.120 on an as-needed basis".


RESPONSE The safety training of workers is to prevent unnecessary human exposure, and to equip workers in the event of an emergency. Providing this training on an as needed basis defeats the purpose of the training.
8. COMMENT I disagree with recommendation #6 based on the results of the Final Risk Assessment (ENSR, August 1991). It implies that current risks to off-site residents via inhalation are unacceptable. The results of the Final Risk Assessment show that on-site inhalation of dust was not a pathway of concern. All long-term on-site inhalation risks evaluated in the Final Risk Assessment were at or below EPA's point of departure. Any off-site risks associated with inhalation of dust from the site would be lower than on-site risks.

RESPONSE Recommendation #6 was made because there is no off-site air monitoring.
9. COMMENT In the Site Visit section, the sentence stating "the former sludge treatment pit is being excavated" should say "it was filled to ground level with soil and some excavation work was being done in preparation for a concrete pad near the existing tank system in the area".

RESPONSE The site visit is a report of what was observed or reported to us during the tour of the site.
10. COMMENT The statement regarding the selection and discussion of a chemical as a contaminant of concern should reflect the ATSDR Final Health Assessment Guidance manual statement.

RESPONSE Please note that the factors listed in your comment as the criteria for selecting a contaminant of concern are inclusive of those listed in the ATSDR Final Public Health Assessment Guidance Manual. The list in the manual clearly states that these criteria are to be used to "assist" in the determination of contaminants of concern.
11. COMMENT Although the test lists a set of selection criteria used to identify contaminants of concern in the various media and areas investigated, these tables do not make it clear which of the criteria were used to put each chemical on the list except in the few instances that a comparison value is specified. It is particularly difficult to determine why most chemicals are on these summary tables since most tables do not list a comparison value for most chemicals.

RESPONSE This recommendation was carefully considered. A major concern is the increasing complexity of the tables. Your recommended change deletes the explanation of listing chemicals when there is no comparison value. We will keep the explanation in the appropriate area, and leave the tables as they are.
12. COMMENT The test should report the calculations used to determine the CREGs and other comparison values. We believe the calculations were incorrectly made.

RESPONSE The CREG values noted in this document are provided to our office by ATSDR. This information is provided to us in summary form with calculations complete.
13. COMMENT The CSF for calculating CREGs for benzo(a)pyrene is not the CSF currently recommended by EPA. The CSFs currently recommended by EPA for all potentially carcinogenic chemicals detected at this site should be used to develop comparison values.

RESPONSE The CSFs used in this document are based on the values available at the time of the writing of this public health assessment, and are provided to us by ATSDR.
14. COMMENT Is the RfD for Chromium III or VI used to estimate comparison values? Which concentration is reported on these summary tables; the maximum detected value of Chromium III or VI?

RESPONSE The RfD for Chromium VI was used.
15. COMMENT In the Toxicological Evaluation section, the short paragraphs describing the potential public health implications from exposure to the chemicals listed in this section are not written in a consistent format. In addition, it is not clear why for some chemicals, EPA toxicity standards are listed, and for some chemicals, they are not.

RESPONSE The short paragraphs for each chemicals of concern have been checked for consistency. Please note that at the beginning of this section, it is stated that no standards were available for some of the chemicals; thus, the rationale for the missing EPA toxicity standards.
16. COMMENT In the Conclusions section, it should state that presently, no health hazard has been determined to be posed by the off-site surface soil.

RESPONSE "Indeterminate" is a ATSDR standard conclusion category. Presenting the information as you have recommended, although it may be, it also may not be accurate. We use the indeterminate conclusion category as we believe that additional investigations need to be done before we conclude that no health risks are posed to the community.
17. COMMENT In Conclusion #5, it should state levels of "potential" health concern.

RESPONSE Levels of health concern is standard ATSDR verbiage.
18. COMMENT In Conclusion #5, it should be revised in the last sentence to read, ...."site-related contaminants in groundwater".

RESPONSE We agree with your recommendation, and the appropriate change was made to the document.
19. COMMENT I disagree with the statement in Conclusion #7. Although we recognize that citizens may be concerned with potential risks from inhalation of dust from the site, the risk assessment showed that there was no significant risk to on-site receptors who were assumed to be exposed to greater concentrations of contaminants in dust than off-site residents.

RESPONSE This conclusion is based on the fact that at the time of the writing of the public health assessment, no off-site air monitoring data were available; thus, the air quality around the site is of health concern.
20. COMMENT In Recommendation #2, the remedial actions should be taken pursuant to the ROD.

RESPONSE Our recommendation is that whatever actions necessary to prevent further migration of the plume from the site be taken. We do not limit our recommendations to what is contained in the ROD.
21. COMMENT Recommendation #3 should include, "long-term exposure to volatilized chemicals, which may emanate from known areas of contamination on the site".

RESPONSE Your wording suggests that it is safe for workers to have short-term exposure to volatilized chemicals, we do not agree.
22. COMMENT I disagree with Recommendation #5 based on the results of the Final Risk Assessment. This recommendation implies that current risks to on-site workers are unacceptable.

RESPONSE The recommendation is made to encourage work practices that will minimize hazards in the event of an accidental exposure. Providing this training on a as needed basis defeats its primary purpose.
23. COMMENT We disagree with Recommendation #7. The Final Risk Assessment used EPA supported toxicity standards for the contaminants in each medium; the results of the risk assessment have been used in this public health assessment to evaluate potential risks from exposure to contaminants from the site. We feel that additional toxicity research is unwarranted at this time.

RESPONSE The Agency for Toxic Substances and Disease Registry writes toxicological profiles for many chemicals. These chemical profiles provide the informational background for the health conclusions in the public health assessment. It is impossible at times to determine the health risk due to exposure to specific chemicals at specified levels when a minimal risk level has not been determined. Thus, the recommendation for additional toxicity research.

All comments received regarding the format of this document were reviewed, and changes were made when appropriate and within the guidelines of ATSDR.


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