United States Region 10 Alaska
Environmental Protection 1200 Sixth Avenue Idaho
Agency Seattle WA 98101 Oregon
Washington
July 6, 1990
Reply to
Attn. of: ES-098
MEMORANDUM
SUBJECT: Detection Limits for Human Hfealth Risk Assessment
FROM: C^Pat Cirone, Chief
T Health and Environme
TO: Superfund Remedial Project Managers
and On-Scene Coordinators
EPA Contractors -
(Addresses)
The attached table is provided for use when work plans are being
prepared for remedial investigations at Superfund sites. The
table presents "risk-based detection limit goals" for chemicals
that are on the contract lab program's routine analytical
services (CLP RAS) list. The risk-based goals were calculated
using EPA reference doses (RfD's) for non-carcinogens or slope
factors for carcinogens. The risk-based limits are
concentrations in soil or water corresponding to a specified risk
level. The adequacy of the RAS procedures to provide data useful
•for human health risk assessment can be considered by comparing
the calculated number*5 with the RAS detection limits. Chemicals
which fare particularly poorly in this comparison are marked with
double asterisks to the left of the chemical name. Soil
detection limits are adequate for the majority of compounds; most
or the problems occur with carcinogens in water.
For the compounds for which detection limits lower than RAS night
be desirable, the columns on the far right of the table present
information on alternate analytical procedures for water that are
available. The methods include Drinking Water (D.W.) methods and
new contract lab program low-concentration methods. The low-
concentration methods will be available in the future as part of
the CLP RAS program and can now be requested as special
analytical services (SAS).
When using this table, be aware of the following:
- The risk-based limits represent a conservative point of
departure, 10-7 cancer risk or 0.1 hazard index (HI) for
non-carcinogens. To look at other risk or HI levels,
multiply the concentration by ten for each order of
magnitude change in risk or HI.
Chemicals on the CLP list for which no toxicity values
were available could not be quantitatively evaluated and are
not included in. the table. Chemicals may be added, or risk-
based qoals revised, as new information becomes available.
-------
(Those who received a previous draft of this table should
note that some values have been revised. Use the new
version.)
- Specific exposure parameters used to calculate risk-
based goals ar detailed in USEPA Region 10's "Statement of
Work" for human health risk assessment, January 31, 1990.
- When chemicals that are not on the CLP list are present
or expected to be present at a site, the usefulness of data
from SAS methods can be considered in advance using similar
risk-based goal calculations.
- RAS detection limits are specified in terms of
concentration per wet weight of soil; actual detection
limits, when converted to dry weight, may be well above
those listed depending on moisture content of soil. Risk-
based detection limit goals were calculated in terms of dry
weight.
- Laboratory documentation provided for non-CLP analyses
will not be the same as documentation for CLP RAS. A
project is underway in the Quality Assurance Office to
develop regional guidance on Laboratory Documentatio'n
Requirements for Non-CLP Data, which will describe levels of
data quality and specify documentation needed for each.
- For Drinking Water methods numbered in the 5OO series,
estimated method detection limits were based on single
laboratory determinations. Individual labs must demonstrate
that they meet method quantitation limits before conducting
analyses.
If you have questions or comments about the risk-based detection
limits, please call Carol Sweeney at 442-6699. Questions about
the analytical methods should be directed to Bob Melton of the
Quality Assurance Office (442-2111).
•
One copy of this table is being sent to each section and to a
risk assessment contact person at each EPA contractor. Please
circulate or distribute to interested persons within your
organization.
-------
Addresses:
Millam, Phil HW-113
Davidson, Kathryn HW-113
Rushen, Carol HW-113
Gates, Kevin HW-113
Krueger, Catherine HW-113
Everts, James HW-093
Teeter, David HW-117
O'Hara, Janet HW-117
Hofer, George HW-074
Day, Paul Hanford Project Office
E. Hanford, SAIC
S. Turnblom, PRC
M. Norman, ICF
L. Yost, PTI
B. Grimsted, Weston
K. Lombardo, CH2M Hill
C. Stineman, E&E
J. Yonekura, Bechtel
W. Bosan, Med-Tox
J. Tsuji, ETI
cc: D. Davoli
L. Woodruff
C. Rockwell
D. Matheny ES-095
R. Melton ES-095
B. Towns ES-095
-------
DETECTION LIMITS FOR WATER:
TCLI
CONTAMINANT
RFO
(mg/kg/d)
ORAL " INHALATION
1
2
3
5
6
7
8
9
10
11
12
13
14
IS
17
18
19
20
21
22
23
25
28
29
30
31
32
33
34
VOLATILES
** Chloromcthane
Bromomethane
** Vinyl chloride
* Dlcmoromethane
Acetone
Carbon dlsulflde
** 1,1-Olchloroethylene
1, 1-Olchloroethane
trans-1 ,2-Dlchloroethylene
** Chloroform
** 1,2-Dlchlorocthane
2-Butanonc
1,1, 1-Trlchloroethanc
* Carbon tetrachlortde
* Bromodlchloromethane
1,2-Otchloropropane
* 1,3-Olchloropropene
* Trlchkroethylene
* Olbromochloromethane
* 1,1,2-Trlchloroethane
** Benzene
* Bromoform
* Tetrachloroethylene
Toluene
** 1,1.2,2-Tetrachloroethane
Chlorobenzene
Ethyl benzene
* Stvrene
Xylene
1
6
1
1
9
1
2
1
5
9
7
2
3
2
4
2
1
3
2
1
2
2
.4E-03
.OE-02
.OE-01
.OE-01
.OE-03
.OE-01 1. OE-01
.OE-02
.OE-02
.OE-02
.OE-02 3. OE-01
.OE-04
.OE-02
.OE-04
.OE-02
.OE-03
.OE-02
.OE-02
.OE-01
.OE-02 5. OE-03
.OE-01
.OE-01
.OE+00
RISK «
10"(-7) OR HI
SLOPE
(/mg/kg/d)
ORAL
1.3E-02
2.3E+00
7.5E-03
6.011-01
6.1E-03
9.1E-02
1.3E-01
1.3E-01
6.8--02
1.8E-01
1.1E-02
8.4E-02
5.7E-02
2.9E-02
7.9E-03
5.1E-02
2. OE-01
3. OE-02
INHALATION
6.3E-03
3. OE-01 (M)
1.4E-02
1.2E+00 (M)
8.1E-02
9.1E-02
1.3E-01
1.7E-02 (M)
5.7E-02
2.9E-02
3.3E-03
2. OE-01
2. OE-03
= 0.1
DETECTION LIMITS FOR
CURRENT
RISK-BASED CLP RAS
GOAL CRQL
0.08
5
0.001
0.05
323
323
0.002
65
65
0.01
0.007
101
132
0.02
0,02
0.05
0.005
0.09
0.04
0.01
0.02
0.4
0.05
968
0.003
4
323
0.09
6452
C,2 10-
NC,
C,2
C,2
NC,
) 10
10
5
) 10
NC.l) 5
CI2L 5
NC,2 5
NC.l 5
C,2
C.2
NC,
5
5
) 10
NC.2) 5
c,l
C,l
C,l
C,2
C,2
C,l
C,2
C,2
C,l
CX2
NC.
5
5
5
5
5
5
5
5
5
5
) 5
C,J)% 5
NC,2 5
NC.l 5
C,2 5
NC.i) 5
WATER (ug/1)
0.
524
0.
0,
0.
0.
0.
0.
0.
0.
0.
0.
0
0.
0.
0
0.
0
0
W.
• 2{E)
13
17
03
12
03
06
21
08
04
02
07
20
03
20
05
20
04
EPA Region 10
7/6/90
Page 1
LOW CONC.
CLP RAS
CRQL
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
-------
Page 2
TCL* CONTAMINANT
RFO
(mg/kg/d)
ORAL
SLOPE
(/mg/kg/d)
ORAL
DETECTION LIMITS FOR WATER (ug/1 ) .
CURRENT
RISK-BASED CLP RAS 0. W. D. W.
GOAL CRQL 524. 2(E) 525(E)
LOW CONC.
CLP RAS
CRQL
SEM1VOLATILES
35 Phenol
36 ** B1s(ch1oroethyl)ether (8CEE)
37 2-Chlorophenoi
39 * 1,4-Dlchlorobenzene
40 Benzyl alcohol
41 l,2-D1ch1orobenzene
43 Bts(2-ch1oro1sopropyl)ether
45 ** N-Nltrosodl-N-propylamlne
46 * Hexachloroethane
47 Nitrobenzene
48 Isophorone
Si Benzole acid
53 2,4-Dlch1orophenol
54 1,2,4-Trlchlorobenzcno
55 Naphthalene
56 p-Chloroanll Ine
57 ** Hexachlorobutadlene
60 Hexachlorocyclopentadlene
61 * 2,4,6-Trlcmorophonol
62 2,4,5-Trlchlorophenol
67 ** 2,6-D1nltroto1uene
69 Acenaphthene
70 2,4-Dtnltrophenol
73 ** 2.4-Dlnltrotoluene
74 Olethyl phthalate
76 Fluorene
79 * N-NHrosodtphcnylamlno
81 ** Hexachlorobcnzene
82 Pentachlorophenol .
84 Anthracene
85 Ol-n-butylphthalate
86 Fluorantncnc
87 Pyrene
88 Butyl benzyl phthalate
89 ** 3.3-dlchlorobenzldlne
90 ** Benz(a)anthracene
91 ** Chrysene
92 B1s(2-ethylhexy1)phthalate
94 * Benzo bmuoranthene
95 * Benzol km uoranthene
96 * Benzo 'ajpyrene (8aP)
97 * Ideno(l,2,3-c,d)pyrene
98 ** D)benz(a,h)anthracene
6.0E-01
5.0E-03
3.0E-01
9.0E-02
4.0E-02
l.OE-03
5.0E-04
2.0E-01
4.0E+00
3.0E-03
2.0E-02
4.0E-03
4.0E-03
2.0E-03
7.0E-03
l.OE-01
6.0E-02
2.0E-03
8.0E-01
4.0E-02
8.0E-04 .
3.0E-02
3.0E-01
l.OE-01
4.0E-02
3.0E-02
2.0E-01
2.0E-02
1.1E+00
2.-1E-02
7.0E+00
1.4E-02
4.1E-03
7.8E-02
1.1E-02
6.8E-01
6.8E-01
4.9E-03
1.7E+00
4.5E-01
1.4E-2
1.2E+01
1,936
O.C03
16
0.1
968
290
129
0.0005
0.2
2
1
12.903
10
65
13
13
0.04
23
0.3
323
0.005
194
7
0.005
2,581
129
0.6
0.002
97
968
323
129
97
645
0.007
0.0003
0.0003
0.2
0.0003
0.0003,
0.0003
0.0003
0.0003
NC.l) 10
C.lj 10
NC.i 10
C.lj 10
NC.i 10
NC.l 10
NC.l 10
C,l 10
C,l) 10
NC.l) 10
C,i • 10
NC.i 50
NC.l 10
NC,1 10
NC.l 10
NC,1 10
C,l) 10 0.04
NC,i) 10
C,l ( 10
NC.l) 50
C,i) 10
NC.l 10
NC,1 50
C,l 10
NC, 10 .
NC.l 10
C'il) 10
C.'l 10 0.1
NC,i 50
NC.l 10
NC-,1 10
NC,1 10
NC.l1 10
NC,1) 10
C.l) 20
C,P,1) 10 0.04
C.P.l) 10 0.04
C,l) 10 0.6
C.P.l) 10 0.2
C.P.l) 10 0.2
C,l) 10 0.04
C.P.l) 10
C.P.l) 10 0.1
5
1
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
-------
Page 3
DETECTION LIMITS FOR WATER (ug/1)
TCLI
100 *
101 *
103 *
104 *
105'**
106 **
107
108 *
109 *
110
112
114 *
115
117 **
119 **
120 **
CONTAMINANT
PESTIClOES/PCU's
a1pha-Hexachlorocyc1 ohexane
(alpha-HCH)
beta-Hexachl orocyd ohexane
(beta-HCH)
gairma-Hexacnlorocycl ohexane
(gantna-HCH)
Heptachlor
Aldrln
Heptachlor epoxlde
Endosulfan
Oleldrln
p,p'-Dlch1orodlphenyl
dlchloroethylene (DDE)
Endrln
p.p'-Dlchlorodlpheny!
djchloroethane (ODD)
p,p'-Dlch1orodlphenyl
trlchloroethane (DOT)
Methoxychlor
Chlordane
Toxaphene
Polychlorlnated blphenyls
RFO
(mg/kg/d)
ORAL
3
5
3
1
5
5
3
5
1
6
.OE-04
.OE-04
.OE-05
.3E-05
.OE-05 .
.OE-05
.OE-04
.OE-04
.OE-01
.OE-05
SLOPE
(/mg/kg/d)
ORAL
6
1
1
1
9
1
3
2
3
1
1
7
.3E+00
.OE+00
.3E+00
.5E+00
.7E+01
.1E+00
.6E+01
.4E-01
.4E-01
.4E-01
.3E+00
.1E+00
.7E+00
RISK-BASED
GOAL
0.0005 (C,l)
0.0016 (C,l)
0.0024 (C,l)
0.0007 (C,l)
0.0002 (C,l)
0.0003 (C,l)
0.2 (NC.l)
0.0002 (C,l)
0.0094 (C,l)
1 (NC.l)
0.01 (C,l)
0.009 (C.l)
323 (NC.l)
0.002 (C,l)
0.003 (C,l)
0.0004 (C,l)
CURRENT
CLP RAS
CRQL
•
0.
0.
. o.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
1.
0.
05
05
05
OS
05
05
05
10
10
10
10
10
50
50
00
50
D. W. 0. W. 0. W.
505 (E) 508 (E) 525 (E)
0.025
0.01
0.003 0.015 0.1
0.003 0.01 0.2
0.075 0.075 0.1
0.004 0.015 0.3
0.012 0.02
0.01
0.0025
0.06
0.140 0.0015
1.000
LOW CONC
CLP RAS
CRQL
0.
0.
0.
0,
0.
0.
0.
0.
0.
0.
0.
0.
01
01
01
01
01
01
02
02
02
02
01
1
20
(PCB's
-------
Page 4
TCLI CONTAMINANT
INORGANICS
* Antimony
** Arsenic
Barium
** Beryllium
Cadmt urn
Chromlum(lll)
Chromlun(VI)
Cyanide, free
Manganese
Mercury (Inorganic)
Nickel, soluble salts
Selenium
Silver
* Thallium (soluble salts)
Vanadium
Zinc
RFC
tar
*
4.0E-04
l.OE-03
5.0E-02
5.0E-03
5.0E-04
l.OE+00
5.0E-03
2.0E-02
2.0E-01
3.0E-04
2.0E-02
3.0E-03
3.0E-03
7.0E-05
7.0E-03
2.0E-01
DETECTION LIMITS FOR
SLOPE . CURRENT
(/mg/kg/d) RtSK-OASED CLP RAS
ORAL GOAL • CRQL
1
1.7E+00 0.002
161
4.3E+00 0.0007
2
3,226
16
65
645
1
65
10
10
0.2
23
927
NC.l) 60
C,i) 10
NC.l) 200
C.i) 5
NC.i 5
NC.l 10
NC,1 10
NC.l 10
NC,1 15
NC.l 0.2
NC.l 40
NC.l 5
NC,1 10
NC.l 10
NC.l 50
NC.l 20
WATER (ug/1)
D.W. (method 1)
3.0 (204.2)
1.0 (206.2)
0.2 (210.2)
0.1 (213.2)
1.0 (279.2)
4.0 (286.2)
NON-CLP CHEMICALS
Oloxln (2,3,7,8-TCOO)
1.6E+05
0.00000002 (C,l)
* RAS detection limit exceeds risk-based by >10.
** RAS detection limit exceeds risk-based by >100.
(C) Risk-based detection limits calculated based on carcinogenic risk of 10 '>7.
(NC) Risk-based detection Units calculated based on non-carcinogenic hazard index of 0.1.
(P) Carcinogenic potency of these PAH's treated as equivalent to OaP.
(£) Estimated method detection limit, based on single laboratory detormlnat'on.
(1) Scenario used to calculate risk-based detection limits was residential 'RME" exposure through Ingestlon of water.
(2) Scenario used to calculate risk-based detection limits was residential ",'.ME" exposure through Ingestlon of water
and Inhalation of volatiles from water.
(M) Slope factor for metabolized dose; adjustment factor used In calculation of risk-based goal.
-------
DETECTION LIMITS FOR SOIL: RISK = 10 e-7 OR HI « 0.1
EPA Region 10
7/6/90
Page 5
TCLI
CONTAMINANT
RFO
(mg/kg/d)
ORAL
SLOPE
(/mg/kg/d)
ORAL
DETECTION LIMITS FOR SOIL (mg/kg)
RISK-BASED
GOALS
CURRENT
CLP RAS
VOLATILES
1 Chloromethane
2 Bromomethane
3 Vinyl chloride
5 Dlcnloromethane
6 Acetone
7 Carbon dlsulflde
8 1,1-Dlchloroethylene
9 1,1-Dlchloroethane
10 trans-l,2-Dlch1oroethy1ene
11 Chloroform
12 1,2-Dlchloroethane
13 2-Butanone
U 1,1,1-Trlchloroethane
15 Carbon totrachlorldo
17 Bromodlchloromethane
18 1,2-Olchloropropane
19 1,3-Dlchloropropene
20 THchloroethylene
21. Dlbromochloromethane
22 1,1,2-THchloroethane
23 Benzene
25 Bromoform
28 Tetrachloroethylene
29 Toluene
30 1,1,2,2-Tetrachloroethane
31 Chlorobenzene
32 Ethyl benzene
33 Styrene
34 Xylene
1.4E-03
6.0E-02
l.OE-01
l.OE-01
OE-03
l.OE-01
OE-02
OE-02
5.OE-02
9.OE-02
7.0E-04
2.OE-02
3.0E-0<1
2.OE-02
4.OE-03
OE-02
OE-02
OE-01
2. OE-02
l.OE-01
2.OE-01
2.0E+00
1.3E-02
2.3E+00
7.5E-03
6.OE-01
6.1E-03
9.1E-02
1
.3C-01
.3E-01
6.8E-02
l.OE-01
1.1E-02
8.4E-02
5.7E-02
2.9E-02
7.9E-03
5.1E-02
2.OE-01
3.OE-02
5
93
0.03
9
6,667
6,667
0.1
6,667
1.333
11
0.8
3333
6,000
0.5
0.5
1
0.4
6
0.8
1
2
9
1
20,000
0.3
1,333
6,667
2
133,333
C.l
NC,
C.l
V | i
NC,
NC,
C.l
NC.
NC
C,
NC»
NC
C,
C,
c,
c,
c,
c,
c,
c,
c,
C.l
NC,
V | 1
NC,
NC.
NC,
0.010
} 0.010
0.010
0.005
) 0.010
.) 0.005
1 O.OOS
i) 0.005
0.005
0.005
0.005
) 0.010
j 0.005
0.005
0.005
O.OOS
0.005
0.005
0.005
0.005
0.005
0.005
0.005
) 0.005
0.005
) 0.005
1 0.005
! 0.005
1) 0.005
-------
TCLI
35
36
37
39
40
41
43
45 *
46
47
48
51
53
54
55
56
57
60 .
61
62
67
69
70
73
74
76
79
81
82
84
85
86
87
88
89
90
91
92
94
95
96
97 *
98 *
CONTAMINANT
SEMIVOLATILES
Phenol
B1s(ch1oroethyl)ether (8CEE)
2-Chlorophenol
1,4-Dlchlorobenzene
Benzyl alcohol
1,2-Olchlorobenzene
B1s{2-chlorotsopropy1 ) ether
N-N1 trosodt -N-propyl ami ne
Hexachloroe thane
Nitrobenzene
Isophorone
Benzole acid
2,4-Olchlorophenol
1,2,4-Trlchlorobenzene
Naphthalene
p-Chloroanlltne
Hexachlorobutadlene
Hexachl orocyc.l opentadl ene (HCCPO)
2,4,6-TMchlorophenol
2,4,5-Trlchlorophenol
2,6-Olnltrotoluene
Acenaphthcnc
2,4-Olni trophcnol
2,4-Olnl trotoluene
Oiethyl phthalate
Fluorene
N-NI trosodlphcnylamlno
Hexachl orobenzene
Pentachloropheno!
Anthracene
01-n-butylphthalste
Fluoranlheno
Pyrene
Butyl benzyl phthalate
3,3-d)chlorobenzldlne
Benz(a)anthracene
Chrysene
Bts(2-ethyhexyl )phtha1ate
.Benzo(b)f luoranthene
Benzo'klfluoranthene
Benzo ajpyrene (BaP)
Ideno(1.2,3-c,d)pyrene
Dlbenz(a,h)anthracene
RFC
(mg/kg/d)
ORAL
6.0E-01
5.0E-03
3.0E-01
9.0E-02
4.0E-02
l.OE-03
5.0E-04
2.0E-01
4.0E+00
3.0E-03
2.0E-02
4.0E-03
4.0E-03
2.0E-03
7.0E-03
l.OE-01
6.0E-02
2.0E-03
8.0E-01
4.0E-02
8.0E-04
3.0E-02
3.0E-01
l.OE-01
-t.OE-02
3.0E-02
2.0E-01
.
2.0E-02
SLOPE
(/mg/kg/d)
ORAL
1.1E+OC
2.4E-02 .
7.0E+00
1.4E-02
4.1E-03
7.8E-02
1.1E-02
6.GE-01
6.GE-01
4.9E-03
1.7E+00
4.5E-01
1.4E-2
1.2E+01
DETECTION LIMITS FOR SOIL (mg/kg)
RISK-BASED CURRENT
GOALS CLP RAS
40,000
0.06
333
3
20,000
3,000
2,667
0.01
5
33
17
266.667
200
1,333
267
267
0.9
467
6
6,667
0.1
4,000
133
0,1
53,333
2.667
14
0.04
2,000
20,000
6,667
2.667
2 , 000
13.333
0.15
0.006
0.006
* 5
0.006
0.006
0.006
0.006
0.006
NC.l) 0.33
C.I) 0.33
NC.l) 0.33
C,l) 0.33
NC,i 0.33
NC.l 0.33
NC.l 0.33
C.l) 0.33
C.I 0.33
NC.i) • 0.33
C,l) 0.33
NC.i) 1.6
NC.l 0.33
NC,1 0.33
NC,1( 0.33
NC.l) 0.33
C.I) 0.33
NC.i) 0.33
C,l) '0.33
NC.i 1.6
C.l) 0.33
NC,i 0.33
NCI. 1.6
C,l 0.33
NC.i 0.33
NC.l 0.33
C.l 0.33
C,l 0.33
NC,i 1.6
NC.l 0.33
NC,1 0.33
NC.l 0.33
NC.l 0.33
NC.l 0.33
C,l) 0.66
C.P.l) 0.33
C.P.l) 0.33
C.l) 0.33
C,P,1) 0.33
C.P.l) 0.33
C.l) 0.33
C,P,1) 0.33
C.P.l) 0.33
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Page 7
IlLf
100
101
103
104
105
106
107 .
108
109
110
112
114
115
117
119
120
fflNTAMTMAMT
\*vf\ 1 rtnl Hrtn 1
PESTIClDES/PCB's
alpha-Hexachlorocyelohexane (alpha-HCH)
beta-Hexachlorocyclohexane (beta-HCH)
gamma-Hexachlorocyclohexane (gamma-HCH)
Heptachlor
Aldrln
Heptachlor epoxtde
Cmlonuir«ii
Dleldrln
p,p'-Dlchlorocllphcnyldlch)oroothy1ene (DDE)
Endrln
p.p'-Otchlorodlphenyl dtchloroethane (ODD)
p.p' -01 chlorodlphenyltrlchloroe thane (DDT)
Hethoxychlor
Chlordane
Toxaphene
Polychlorlnated blphenyls (PCBs)
DC(\
KrU
(rng/kg/d)
ORAL
3.0E-04
5.0E-04
3.0E-05
1.3E-05
fi.or-ofi
5.0E-05
3.0E-04
5.0E-04
l.OE-01
6.0E-05
C 1 ftCC
oLUrt
/ /m_ /(.„/ j\
(/mg/Kgrd;
6.30E*00
l.SOE^OO
1.30E<-00
4.50E^OO
1.7E+01
9.1E+00
1.6E+01
3.4E-C1
2.4E-01
3.4E-01
1.3E+00
I.1E+00
7.7E+00
DETECTION LIMITS
DTCk'.DACCn
K1*)N DAdtU
GOALS
0.01 (C,l)
0.04 (C.l)
0.05 (C.I)
0.02 (C.I)
0.004 (C,l)
0.01 (C,l)
.1 (NC.l)
0.004 (C.l)
0.2 (C.l)
20 (NC.l)
0.3 (C,l)
0.2 (C,l)
6667.00 (NC.l)
0.05 (C.l)
0.06 (C,l)
0.01 (C,l)
FOR SOIL (mg/kg)
ntODCMT
LUKKINI
CLP RAS
0.008
0.008
0.008
0.008
0.008
0.008
o.oon
0.016
0.016
0.016
0.016
0.016
0.080
0.080
0.160
0.080
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Page 8
TCL* CONTAMINANT
INORGANICS
Antimony
* Arsenic
Barium
* Beryllium
Cadmium
* Chromium (VI)
Chromium) 111)
Cyanide, free •
Manganese
Mercury (Inorganic)
Nickel, soluble salts
Selenium
Silver
Thallium (soluble salts)
Vanadium
Zinc
RFO
img/Kg/dj
ORAL
4. OE-04
1. OE-03
5.0E-02
•5. OE-03
5.-OE-04
5. OE-03
1. OE+00
2.0E-02
2. OE-01
3. OE-04
2.0E-02
3. OE-03
3. OE-03
7.0E-05
7. OE-03
2. OE-01
DETECTION LIMITS FOR SOIL (mg/kg)
t\ Apr ... ............... ............
(/mg/kg/d) RISK-BASED CURRENT
ORAL INHALATION GOALS CLP RAS
27
1.7E+00 5.0E+01 (A) 0.03
3,333
4.3E+CO 8.4E+00 0.02
6.1E+00 0.5
4.1E+01 0.08
66,667
1,333
13,333
20
1,333
200
200
5
467
13,333
NC.l) 6.0
C.2 1.0
NC, ) 20.0
C,2 0.5
C,3 0.5
C,3 1.0
NC, ) 1.0
NC, 1.0
NC, 1.5
NC, 0.02
NC, 4.0
NC, O.S
NC, 1.0
NC.l' 1.0
NC,1 5.0
NC.l) 2.0
NON-CLP CHEMICALS
Oloxln (2,3,7,8-TCOO)
1.6E+05
0.0000004 (C)
* RAS detection limit exceeds risk-based by >10.
(C) Risk-based detection limits calculated based on carcinogenic risk of 10 E-7
for residential "RME" exposure through soil Ingestlon.
(NC) Risk-based detection limits calculated based on non-carcinogenic hazard Index of 0.1
for residential "RME" exposure through soil Ingestlon.
(P) Carcinogenic potency of these PAH's treated as equivalent to DaP.
(1) Scenario used to calculate risk-based detection limits was residential "RME" exposure through Incidental Ingestlon of soil,
(2) Scenario used to calculate risk-baaed detection limits was residential "RME" exposure through Incidental Ingestlon of soil
and Inhalation of dust derived from contaminated soil.
(3) Scenario used to calculate risk-based detection limits was residential "RME" exposure through Inalatlon of dust derived
from contaminated soli.
(A) Slope factor for absorbed dose; absorption factor Included In calculation of rlsk-baseo" goal.
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