23022_Chapel Hill Police Property_Soil Risk Eval_20160502

WasteManagement
ENVIRONMENTAL OVALITY
May 2, 2016
Mr. Lance Norris, Public Works Director
Town of Chapel Hill
405 Martin Luther King Jr Blvd
Chapel Hill NC 27514
Re: Chapel Hill Police Department Property
828 Martin Luther King Jr Blvd
Chapel Hill, Orange County
NONCD0001486
Dear Mr. Norris
PAT MCCRORY
Governor
DONALD R. VAN DER VAART
Secretary
MICHAEL E. SCOTT
Acting Director
This letter is written regarding the soil sample results from the requested testing in and
around the proposed greenway construction that will cross onto the Chapel Hill Police
Department Property Site (Site). The sample results were evaluated by our industrial hygienist to
determine if they exceed safe levels for park/recreational use and worker exposure. The complete
results of the evaluation are attached for your review. In summary, the risk of adverse health
effects to park visitors and construction workers is below the US EPA and NC DEQ maximum
acceptable limits.
If you have any questions, please contact me at [phone].
Sincerely,
Amy Axon, Hydrogeologist
Inactive Hazardous Sites Branch
Enclosures
CC: Curtis Brooks
State of North Carolina I Environmental Quality I Waste Management
1646 Mail Service Center 1217 West Jones Street I Raleigh, NC 27699-1646
919 707 8200 T

Axon, Amy
From: Assefa, Hanna
Sent: Tuesday, March 22, 2016 5:13 PM
To: Axon, Amy
Subject: Risk Assessment for the Chapel Hill Police Department soil contamination-828 Martin
Luther King Jr Blvd. Chapel Hill, Orange County, NONCDD0001486
Attachments: recreator risk calc chapel hil pd property 03 212016.pdf; Construction_Worker_chem_
22MAR2016_prg6491 Chapel Hill Police Department Soil.pdf
Amy, I have evaluated the maximum contaminant concentrations you provided for the subject site, for risk
posed for a recreational/park scenario and a construction worker scenario. I used the USEPA risk calculator for
this calculation. For the recreational/park scenario I assumed several age groups including infants going to the
park twice a week 110 days a year for 1 hr. This is likely very conservative. Under these assumptions the
risk of adverse health effects to the park visitor is below the USEPA and NCDEQ acceptable limits. Similarly, I
assumed that construction workers would be exposed to the contaminants when they are grading the land
when converting to a park. I ultra -conservatively assumed that they would work in the same area for 1 year.
The risk of adverse health effects calculated for the construction worker was also below the USEPA and
NCDEQ maximum acceptable limits.
The USEPA and the NCDEQ maximum acceptable limits are a cumulative 1.0E-04 cancer risk a hazard index
of 1.0 for non -cancer adverse health effects.
I have attached the calculations for your records.
Chapel Hill Police Department Property, 828 Martin Luther King Jr Blvd
Chapel Hill, Orange County
Incident #NONCD0001486

Site -specific
Construction Worker Equation Inputs for Soil - Other Construction Activities
Variable
TR (target cancer risk) unitless
THQ (target hazard quotient) unitless
EF ,,, (exposure frequency - construction worker) day/yr
ED ,,, (exposure duration - construction worker) yr
ET ,,, (exposure time - construction worker) hr/day
LT (lifetime) yr
BW ,,, (body weight - construction worker) kg
IR ,,, (soil ingestion rate - construction worker) mg/day
SAW (surface area - construction worker) cm z/day
AF W (skin adherence factor - construction worker) mg/cm
AT,,, (averaging time - construction worker)
EW ,,, (overall duration of construction) weeks/year
DW ,,, (days worked - construction worker) days/week
A (acres)
PR (areal extent of tilling) acres
A excav (area of excavation site) m z
A �o (areal extent of grading) acres
A,-_,,, (areal extent of dozing) acres
M, _, , (Gravimetric soil moisture content) %
M a „ (Gravimetric soil moisture content) %
ρ 5o,i (density) g/cm 3 - chemical -specific
NA -I,,, (number of times soil is dumped)
N,,,,, (number of times soil is tilled)
s,,,, (soil silt content) %
s, , (soil silt content) %
B, (dozing blade length) m
B, (grading blade length) m
NA -I.. (number of times site was dozed)
NA -,,.I. (number of times site was graded)
S, , (dozing speed) kph
S ,o (dozing speed) kph
do „ (average depth of excavation site) m
V (fraction of vegetative cover)
z
1.0E-6
1
250
1
8
70
80
330
3527
0.3
365
50
5
0.13
0.13
0.13
0.13
0.13
7.9
12
1.68
2
2
18
6.9
1
1
2
4
11.4
11.4
.6
0
Value
1
Output generated 22MAR2016:15:16:25

Site -specific
Construction Worker Equation Inputs for Soil - Other Construction Activities
Variable
Value
U, (mean annual wind speed) m/s
4.69
U, (equivalent threshold value) m/s
11.32
t (overall duration of construction) hours
8400
F Unitless Dispersion Correction Factor
0.185837208
T (time over which traffic occurs) s
7200000
YT (g/m2s)
0.0000010282552
F(x) (function dependant on U , /U, derived using Cowherd et al. (1985))
0.194
M,,, ' (dust emitted by wind erosion) g
2289.0175219211
M, , (dust emitted from dozing operations) g
31.265918140303
M,,,, (dust emitted from tilling operations) g
655.63592234891
M ,o (dust emitted from grading operations) g
918.93655526399
Mo „ (dust emitted from excavation soil dumping) g
0.0319584249322
ΣVKT, , (sum of fleet vehicle km traveled) km
1.05222
ΣVKT ,o (sum of fleet vehicle km traveled) km
2.10444
Q/C (inverse of the ratio of the geometric mean air concentration to the emission flu
18.747540287861
PEPS (particulate emission factor) m 3/kg
98109416.470716
A (PEF Dispersion Constant)
2.4538
B (PEF Dispersion Constant)
17.5660
C (PEF Dispersion Constant)
189.0426
A.., (areal extent of site) m z
526.0918
A (VF,,,,, acres)
0.5
T (temperature) °C
25
foc (fraction organic carbon in soil) g/g
0.006
ρ, (dry soil bulk density) g/cm 3
1.5
ρ. (soil particle density) g/cm 3
2.65
θ,,, (water -filled soil porosity) L o /L
0.15
A (VF Dispersion Constant)
2.4538
B (VF Dispersion Constant)
17.5660
C (VF Dispersion Constant)
189.0426
Q/C (inverse of the ratio of the geometric mean air concentration to the emission flu
14.31407
n (total soil porosity) L ,o/L ;,
0.43396
θ (air -filled soil porosity) L ,,/L
0.28396
As (VFmlm_s acres)
0.5
K
Output generated 22MAR2016:15:16:25

Site -specific
Construction Worker Equation Inputs for Soil - Other Construction Activities
Variable Value
ρb (dry soil bulk density) g/cm 3 1.5
d (average source depth) m
Q/C„ , (inverse of the ratio of the geometric mean air concentration to the emission fl 14.31407
VFmu,,,c (volitization factor) m 3air /kgso,
3
Output generated 22MAR2016:15:16:25

Site -specific
4
Construction Worker Screening Levels (RSL) for Soil - Other Construction Activities
ca=Cancer, nc=Noncancer, ca* (Where nc SL < 100 x ca SL),
ca** (Where nc SL < 10 x ca SL), max=SL exceeds ceiling limit (see User's Guide), sat=SL exceeds csat,
Smax=Soil SL exceeds ceiling limit and has been substituted with the max value (see User's Guide),
Ssat=Soil inhalation SL exceeds csat and has been substituted with the csat
Ingestion
Inhalation
SF
Unit
Subchronic
Subchronic
Subchronic
Subchronic
CAS
SFO Risk
IUR RfD
RfD
RfC
RfC
Chemical
Number
Mutagen?
VOC? (mg/kg-day) '
Ref (ug/m 3)-'
Ref (mg/kg-day)
Ref
(mg/m 3)
Ref
Arsenic,
7440-38-2
No
No 1.50E+00
I 4.30E-03
I 3.00E-04
I
1.50E-05
C
Inorganic
Barium
7440-39-3
No
No -
-
2.00E-01
A
5.00E-03
H
Beryllium and
7440-41-7
No
No -
2.40E-03
I 5.00E-03
H
2.00E-05
I
compounds
Chromium(III),
16065-83-1
No
No -
-
1.50E+00
H
5.00E-03
A
Insoluble
Salts
Cobalt
7440-48-4
No
No -
9.00E-03
P 3.00E-03
P
2.00E-05
P
Copper
7440-50-8
No
No -
-
1.00E-02
A
-
Mercury
7439-97-6
No
Yes -
-
-
3.00E-04
H
(elemental)
Molybdenum
7439-98-7
No
No -
-
5.00E-03
H
-
Nickel Soluble
7440-02-0
No
No -
2.60E-04
C 2.00E-02
H
2.00E-04
A
Salts
Selenium
7782-49-2
No
No -
-
5.00E-03
H
2.00E-02
C
Strontium,
7440-24-6
No
No -
-
2.00E+00
A
-
Stable
Thallium
7440-28-0
No
No -
-
4.00E-05
S
-
(Soluble
Salts)
Vanadium and
7440-62-2
No
No -
-
1.00E-02
A
1.00E-04
A
Compounds
Zinc and
7440-66-6
No
No -
-
3.00E-01
A
-
Compounds
Volatilization
Factor
GIABS ABS RBA (m3/kg)
1 0.03 0.6 -
0.07 - 1 -
0.007 - 1 -
0.013 - 1 -
1 -
1 7.53E+03
0.04
1
1
1
0.026
1
Output generated 22MAR2016:15:16:25

Site -specific
5
Construction Worker Screening Levels (RSL) for Soil - Other Construction Activities
ca=Cancer, nc=Noncancer, ca* (Where nc SL < 100 x ca SQ,
ca** (Where nc SL < 10 x ca SQ, max=SL exceeds ceiling limit (see User's Guide), sat=SL exceeds csat,
Smax=Soil SL exceeds ceiling limit and has been substituted with the max value (see User's Guide),
Ssat=Soil inhalation SL exceeds csat and has been substituted with the csat
Soil
Particulate
Ingestion
Dermal Inhalation
Carcinogenic
Ingestion
Dermal
Inhalation
Noncarcinogenic
Saturation
Emission
SL
SL SL
SL
SL
SL
SL
SL
Screening
Concentration
Factor
TR=1.0E-6
TR=1.0E-6 TR=1.0E-6
TR=1.0E-6
THQ=1
THQ=1
THQ=1
THI=1
Level
Chemical
(mg/kg)
(m3/kg)
(mg/kg)
(mg/kg) (mg/kg)
(mg/kg)
(mg/kg)
(mg/kg)
(mg/kg)
(mg/kg)
(mg/kg)
Arsenic,
-
9.81 E+07
2.75E+01
1.72E+02 7.00E+03
2.36E+01
1.70E+02
1.06E+03
6.18E+03
1.43E+02
2.36E+01
Inorganic
ca**
Barium
-
9.81 E+07
-
- -
-
6.79E+04
-
2.06E+06
6.57E+04
6.57E+04
nc
Beryllium and
-
9.81 E+07
-
- 1.25E+04
1.25E+04
1.70E+03
-
8.24E+03
1.41 E+03
1.41 E+03
compounds
nc
Chromium(III),
-
9.81 E+07
-
- -
-
5.09E+05
-
2.06E+06
4.08E+05
4.08E+05
Insoluble
max
Salts
Cobalt
-
9.81 E+07
-
- 3.34E+03
3.34E+03
1.02E+03
-
8.24E+03
9.06E+02
9.06E+02
nc
Copper
-
9.81 E+07
-
- -
-
3.39E+03
-
-
3.39E+03
3.39E+03
nc
Mercury
3.13E+00
9.81 E+07
-
- -
-
-
-
9.49E+00
9.49E+00
9.49E+00
(elemental)
sat
Molybdenum
-
9.81 E+07
-
- -
-
1.70E+03
-
-
1.70E+03
1.70E+03
nc
Nickel Soluble
-
9.81 E+07
-
- 1.16E+05
1.16E+05
6.79E+03
-
8.24E+04
6.27E+03
6.27E+03
Salts
nc
Selenium
-
9.81 E+07
-
- -
-
1.70E+03
-
8.24E+06
1.70E+03
1.70E+03
nc
Strontium,
-
9.81 E+07
-
- -
-
6.79E+05
-
-
6.79E+05
6.79E+05
Stable
max
Thallium
-
9.81 E+07
-
- -
-
1.36E+01
-
-
1.36E+01
1.36E+01
(Soluble
nc
Salts)
Vanadium and
-
9.81 E+07
-
- -
-
3.39E+03
-
4.12E+04
3.14E+03
3.14E+03
Compounds
nc
Zinc and
-
9.81 E+07
-
- -
-
1.02E+05
-
-
1.02E+05
1.02E+05
Compounds
max
Output generated 22MAR2016:15:16:25

Site -specific
Construction Worker Risk for Soil - Other Construction Activities
Chemical
Arsenic, Inorganic
Barium
Beryllium and compounds
Chromium(III), Insoluble
Salts
Cobalt
Copper
Mercury (elemental)
Molybdenum
Nickel Soluble Salts
Selenium
Strontium, Stable
Thallium (Soluble Salts)
Vanadium and Compounds
Zinc and Compounds
*Total Risk/HI
1.1
Ingestion
Inhalation
Soil
SF
Unit
Subchronic
Subchronic
Subchronic
Subchronic
Volatilization
Saturation
SFO Risk
IUR RfD
RfD
RfC
RfC
Factor
Concentration
(mg/kg-day) -'
Ref (ug/m 3)-'
Ref (mg/kg-day)
Ref
(mg/m 3)
Ref
GIABS ABS RBA
(m3/kg)
(mg/kg)
1.50E+00
I 4.30E-03
I 3.00E-04
I
1.50E-05
C
1 0.03
0.6
-
-
-
-
2.00E-01
A
5.00E-03
H
0.07 -
1
-
-
-
2.40E-03
I 5.00E-03
H
2.00E-05
1
0.007 -
1
-
-
-
-
1.50E+00
H
5.00E-03
A
0.013 -
1
-
-
-
9.00E-03
P 3.00E-03
P
2.00E-05
P
1 -
1
-
-
-
-
1.00E-02
A
-
1 -
1
-
-
-
-
-
3.00E-04
H
1 -
1
7.53E+03
3.13E+00
-
-
5.00E-03
H
-
1 -
1
-
-
-
2.60E-04
C 2.00E-02
H
2.00E-04
A
0.04 -
1
-
-
-
-
5.00E-03
H
2.00E-02
C
1 -
1
-
-
-
-
2.00E+00
A
-
1 -
1
-
-
-
-
4.00E-05
S
-
1 -
1
-
-
-
-
1.00E-02
A
1.00E-04
A
0.026 -
1
-
-
-
-
3.00E-01
A
-
1 -
1
-
-
Output generated 22MAR2016:15:16:25

Site -specific
Construction Worker Risk for Soil - Other Construction Activities
Particulate
Emission
Factor
Concentration
Ingestion Dermal Inhalation Carcinogenic Ingestion
Dermal Inhalation
Noncarcinogenic
Chemical
(m3/kg)
(mg/kg)
Risk Risk Risk Risk HQ
HQ HQ
HI
Arsenic, Inorganic
9.81 E+07
2.40E+01
8.72E-07 1.40E-07 3.43E-09 1.02E-06 0.1414286
0.0226736 0.0038829
0.1679851
Barium
9.81 E+07
8.30E+02
- - - - 0.0122277
- 0.0004029
0.0126305
Beryllium and compounds
9.81 E+07
3.50E+00
- - 2.79E-10 2.79E-10 0.0020625
- 0.0004247
0.0024872
Chromium(III), Insoluble
9.81 E+07
3.50E+01
- - - - 0.0000688
- 0.000017
0.0000857
Salts
Cobalt
9.81 E+07
2.80E+01
- - 8.38E-09 8.38E-09 0.0275
- 0.0033976
0.0308976
Copper
9.81 E+07
5.70E+01
- - - - 0.0167946
- -
0.0167946
Mercury (elemental)
9.81 E+07
2.10E+00
- - - - -
- 0.2213331
0.2213331
Molybdenum
9.81 E+07
1.70E+00
- - - - 0.0010018
- -
0.0010018
Nickel Soluble Salts
9.81 E+07
1.90E+01
- - 1.64E-10 1.64E-10 0.0027991
- 0.0002305
0.0030297
Selenium
9.81 E+07
2.40E+00
- - - - 0.0014143
- 2.9122E-7
0.0014146
Strontium, Stable
9.81 E+07
1.90E+02
- - - - 0.0002799
- -
0.0002799
Thallium (Soluble Salts)
9.81 E+07
1.70E+00
- - - - 0.1252232
- -
0.1252232
Vanadium and Compounds
9.81 E+07
9.50E+01
- - - - 0.0279911
- 0.0023055
0.0302966
Zinc and Compounds
9.81 E+07
1.10E+02
- - - - 0.0010804
- -
0.0010804
*Total Risk/HI
-
-
8.72E-07 1.40E-07 1.23E-08 1.02E-06 0.3598719
0.0226736 0.2319945
0.61454
Output generated 22MAR2016:15:16:25

Site -specific
Recreator Equation Inputs for Soil
Variable
Value
TR (target cancer risk) unitless
1.0E-6
THQ (target hazard quotient) unitless
1
SA rec-c (skin surface area - child) cm 2/day
2373
SA rec-a (skin surface area - adult) cm 2/day
6032
SAo-2 (skin surface area - mutagenic) cm 2/day
2373
SA2_6 (skin surface area - mutagenic) cm 2/day
2373
SA6-16 (skin surface area - mutagenic) cm 2/day
6032
SA,,-,,) (skin surface area - mutagenic) cm 2/day
6032
SA rec-a (skin surface area - adult) cm 2/day
6032
LT (lifetime - recreator) year
70
IFS_,_,,-, (age -adjusted soil ingestion factor) mg/kg
11550
DFS_ _ ,, (age -adjusted soil dermal factor) mg/kg
32494
IFSM,o ,. (mutagenic age -adjusted soil ingestion factor) mg/kg
52433.333
DFSM,o ,, (mutagenic age -adjusted soil dermal factor) mg/kg
134596
EFL_, (exposure frequency) day/year
110
EF­ (exposure frequency) day/year
110
EF,_,F (exposure frequency) day/year
110
EF,,_,, (exposure frequency) day/year
110
EFYe (exposure frequency - child) day/year
110
EFYe (exposure frequency - adult) day/year
110
EF,o (exposure frequency - adult) day/year
110
EF,o (exposure frequency - recreator) day/year
110
IRS_, (soil intake rate) mg/day
200
IRS,_ (soil intake rate) mg/day
200
IRS,, (soil intake rate) mg/day
100
IRS,,_,, (soil intake rate) mg/day
100
IRS_ (soil intake rate - child) mg/day
200
IRS_ (soil intake rate - adult) mg/day
100
IRS_ (soil intake rate - adult) mg/day
100
EDP_, (exposure duration) year
2
ED­ (exposure duration) year
4
ED,, (exposure duration) year
10
ED16-so (exposure duration) year
10
1
Output generated 21 MAR2016:14:44:13

Site -specific
Recreator Equation Inputs for Soil
Variable
Value
ED_ (exposure duration - child) year
6
ED_ (exposure duration - adult) year
20
ED_ (exposure duration - adult) year
20
ED,o (exposure duration - recreator) year
26
ETA_, (exposure time) hr/day
1
ET- (exposure time) hr/day
1
ET,_,, (exposure time) hr/day
1
ET,,_,, (exposure time) hr/day
1
ETYe (exposure time - child) hr/day
1
ET_ (exposure time - adult) hr/day
1
ET_ (exposure time - adult) hr/day
1
ET- (exposure time - recreator) hr/day
1
BW,_, (body weight) kg
15
BW,_, (body weight) kg
15
BW,_,, (body weight) kg
80
BW,,_,, (body weight) kg
80
BW_,_, (body weight - child) kg
15
BW_,_, (body weight - adult) kg
80
BW_,_, (body weight - adult) kg
80
AFo-2 (skin adherence factor) mg/cm 2
0.2
AFz_6 (skin adherence factor) mg/cm 2
0.2
AF6_16 (skin adherence factor) mg/cm 2
0.07
AF16_30 (skin adherence factor) mg/cm 2
0.07
AFrec-c (skin adherence factor - child) mg/cm 2
0.2
AFrec-a (skin adherence factor - adult) mg/cm 2
0.07
AFrec-a (skin adherence factor - adult) mg/cm 2
0.07
City (Climate Zone) PEF Selection
Default
A (acres)
.5
Q/CWP (g/m2-s per kg/m3)
93.77
PEF (particulate emission factor) m 3/kg
1359344438
A (PEF Dispersion Constant)
16.2302
B (PEF Dispersion Constant)
18.7762
C (PEF Dispersion Constant)
216.108
z
Output generated 21 MAR2016:14:44:13

Site -specific
Recreator Equation Inputs for Soil
Variable
Value
V (fraction of vegetative cover) unitless
0.5
U, (mean annual wind speed) m/s
4.69
U, (equivalent threshold value)
11.32
F(x) (function dependant on U , /U,) unitless
0.194
City (Climate Zone) VF Selection
Default
A (acres)
.5
Q/C , (g/m2-s per kg/m 3)
68.18
foc (fraction organic carbon in soil) g/g
0.006
&rho;b (dry soil bulk density) g/cm 3
1.5
&rho;. (soil particle density) g/cm 3
2.65
n (total soil porosity) L ,o/L ;,
0.43396
&theta; (air -filled soil porosity) L ,,/L
0.28396
&theta; (water -filled soil porosity) L ,o,/L
0.15
T (exposure interval) s
819936000
A (VF Dispersion Constant)
11.911
B (VF Dispersion Constant)
18.4385
C (VF Dispersion Constant)
209.7845
City (Climate Zone) VF m, Selection
Default
VF. (volitization factor) m 3/kg
Q/C , (g/m2-s per kg/m 3)
68.18365
A (acres)
.5
T (exposure interval) yr
26
d (depth of source) m
&rho;b (dry soil bulk density) g/cm 3
1.5
A (VF Dispersion Constant - Mass Limit)
11.911
B (VF Dispersion Constant - Mass Limit)
18.4385
C (VF Dispersion Constant- Mass Limit)
209.7845
3
Output generated 21 MAR2016:14:44:13

Site -specific
4
Recreator Screening Levels (RSL) for Soil
ca=Cancer, nc=Noncancer, ca* (Where nc SL < 100 x ca SL),
ca** (Where nc SL < 10 x ca SL), max=SL exceeds ceiling limit (see User's Guide), sat=SL exceeds csat,
Smax=Soil SL exceeds ceiling limit and has been substituted with the max value (see User's Guide),
Ssat=Soil inhalation SL exceeds csat and has been substituted with the csat
Ingestion
SF
CAS
SFO
Chemical
Number
Mutagen?
VOC? (mg/kg-day) ' Ref
Arsenic, Inorganic
7440-38-2
No
No 1.50E+00 I
Barium
7440-39-3
No
No -
Beryllium and compounds
7440-41-7
No
No -
Chromium(III), Insoluble Salts
16065-83-1
No
No -
Cobalt
7440-48-4
No
No -
Copper
7440-50-8
No
No -
Manganese (Non -diet)
7439-96-5
No
No -
Mercury (elemental)
7439-97-6
No
Yes -
Molybdenum
7439-98-7
No
No -
Nickel Soluble Salts
7440-02-0
No
No -
Selenium
7782-49-2
No
No -
Strontium, Stable
7440-24-6
No
No -
Thallium (Soluble Salts)
7440-28-0
No
No -
Vanadium and Compounds
7440-62-2
No
No -
Zinc and Compounds
7440-66-6
No
No -
Inhalation
Unit
Subchronic
Subchronic
Subchronic
Subchronic
Risk
IUR RfD
RfD
RfC
RfC
(ug/m 3)-'
Ref (mg/kg-day)
Ref
(mg/m 3)
Ref
4.30E-03
I 3.00E-04
I
1.50E-05
C
-
2.00E-01
A
5.00E-03
H
2.40E-03
I 5.00E-03
H
2.00E-05
I
-
1.50E+00
H
5.00E-03
A
9.00E-03
P 3.00E-03
P
2.00E-05
P
-
1.00E-02
A
-
-
2.40E-02
S
5.00E-05
I
-
-
3.00E-04
H
-
5.00E-03
H
-
2.60E-04
C 2.00E-02
H
2.00E-04
A
-
5.00E-03
H
2.00E-02
C
-
2.00E+00
A
-
-
4.00E-05
S
-
-
1.00E-02
A
1.00E-04
A
-
3.00E-01
A
-
Output generated 21 MAR2016:14:44:13

Site -specific
5
Recreator Screening Levels (RSL) for Soil
ca=Cancer, nc=Noncancer, ca* (Where nc SL < 100 x ca SL),
ca** (Where nc SL < 10 x ca SL), max=SL exceeds ceiling limit (see User's Guide), sat=SL exceeds csat,
Smax=Soil SL exceeds ceiling limit and has been substituted with the max value (see User's Guide),
Ssat=Soil inhalation SL exceeds csat and has been substituted with the csat
Chemical
GIABS ABS RBA
Arsenic, Inorganic
1
0.03 0.6
Barium
0.07
- 1
Beryllium and compounds
0.007
- 1
Chromium(III), Insoluble Salts
0.013
- 1
Cobalt
1
- 1
Copper
1
- 1
Manganese (Non -diet)
0.04
- 1
Mercury (elemental)
1
- 1
Molybdenum
1
- 1
Nickel Soluble Salts
0.04
- 1
Selenium
1
- 1
Strontium, Stable
1
- 1
Thallium (Soluble Salts)
1
- 1
Vanadium and Compounds
0.026
- 1
Zinc and Compounds
1
- 1
Soil
Volatilization
Saturation
Factor
Concentration
(m3/kg)
(mg/kg)
3.47E+04
3.13E+00
Particulate Ingestion Dermal Inhalation Carcinogenic
Emission
SL
SL
SL
SL
Factor
TR=1.0E-6
TR=1.0E-6
TR=1.0E-6
TR=1.0E-6
(m3/kg)
(mg/kg)
(mg/kg)
(mg/kg)
(mg/kg)
1.36E+09
2.46E+00
1.75E+01
6.78E+04
2.15E+00
1.36E+09
-
-
-
-
1.36E+09
-
-
1.21 E+05
1.21 E+05
1.36E+09
-
-
-
-
1.36E+09
-
-
3.24E+04
3.24E+04
1.36E+09
-
-
-
-
1.36E+09
-
-
-
-
1.36E+09
-
-
-
-
1.36E+09
-
-
-
-
1.36E+09
-
-
1.12E+06
1.12E+06
1.36E+09
-
-
-
-
1.36E+09
-
-
-
-
1.36E+09
-
-
-
-
1.36E+09
-
-
-
-
1.36E+09
-
-
-
-
Output generated 21 MAR2016:14:44:13

Site -specific
1.1
Recreator Screening Levels (RSL) for Soil
ca=Cancer, nc=Noncancer, ca* (Where nc SL < 100 x ca SQ,
ca** (Where nc SL < 10 x ca SQ, max=SL exceeds ceiling limit (see User's Guide), sat=SL exceeds csat,
Smax=Soil SL exceeds ceiling limit and has been substituted with the max value (see User's Guide),
Ssat=Soil inhalation SL exceeds csat and has been substituted with the csat
Ingestion
Dermal
Inhalation
Noncarcinogenic
Ingestion
Dermal
Inhalation
Noncarcinogenic
SL
SL
SL
SL
SL
SL
SL
SL
Child
Child
Child
Child
Adult
Adult
Adult
Adult
Screening
THQ=1
THQ=1
THQ=1
THI=1
THQ=1
THQ=1
THQ=1
THI=1
Level
Chemical
(mg/kg)
(mg/kg)
(mg/kg)
(mg/kg)
(mg/kg)
(mg/kg)
(mg/kg)
(mg/kg)
(mg/kg)
Arsenic, Inorganic
1.24E+02
1.05E+03
1.62E+06
1.11 E+02
1.33E+03
6.29E+03
1.62E+06
1.10E+03
2.15E+00 ca*
Barium
4.98E+04
-
5.41 E+08
4.98E+04
5.31 E+05
-
5.41 E+08
5.30E+05
4.98E+04 nc
Beryllium and compounds
1.24E+03
-
2.17E+06
1.24E+03
1.33E+04
-
2.17E+06
1.32E+04
1.24E+03 nc
Chromium(III), Insoluble Salts
3.73E+05
-
5.41 E+08
3.73E+05
3.98E+06
-
5.41 E+08
3.95E+06
3.73E+05 max
Cobalt
7.47E+02
-
2.17E+06
7.46E+02
7.96E+03
-
2.17E+06
7.93E+03
7.46E+02 nc
Copper
2.49E+03
-
-
2.49E+03
2.65E+04
-
-
2.65E+04
2.49E+03 nc
Manganese (Non -diet)
5.97E+03
-
5.41 E+06
5.97E+03
6.37E+04
-
5.41 E+06
6.30E+04
5.97E+03 nc
Mercury (elemental)
-
-
8.29E+02
8.29E+02
-
-
8.29E+02
8.29E+02
8.29E+02 sat
Molybdenum
1.24E+03
-
-
1.24E+03
1.33E+04
-
-
1.33E+04
1.24E+03 nc
Nickel Soluble Salts
4.98E+03
-
2.17E+07
4.98E+03
5.31 E+04
-
2.17E+07
5.30E+04
4.98E+03 nc
Selenium
1.24E+03
-
2.17E+09
1.24E+03
1.33E+04
-
2.17E+09
1.33E+04
1.24E+03 nc
Strontium, Stable
4.98E+05
-
-
4.98E+05
5.31 E+06
-
-
5.31 E+06
4.98E+05 max
Thallium (Soluble Salts)
9.95E+00
-
-
9.95E+00
1.06E+02
-
-
1.06E+02
9.95E+00 nc
Vanadium and Compounds
2.49E+03
-
1.08E+07
2.49E+03
2.65E+04
-
1.08E+07
2.65E+04
2.49E+03 nc
Zinc and Compounds
7.47E+04
-
-
7.47E+04
7.96E+05
-
-
7.96E+05
7.47E+04 nc
Output generated 21 MAR2016:14:44:13

Site -specific
Recreator Risk for Soil
Ingestion
Inhalation
SF
Unit
Subchronic
Subchronic
Subchronic
Subchronic
SFO Risk
IUR RfD
RfD
RfC
RfC
Chemical
(mg/kg-day) -'
Ref (ug/m 3)-'
Ref (mg/kg-day)
Ref
(mg/m 3)
Ref
GIABS ABS
RBA
Arsenic, Inorganic
1.50E+00
I 4.30E-03
I 3.00E-04
I
1.50E-05
C
1 0.03
0.6
Barium
-
-
2.00E-01
A
5.00E-03
H
0.07 -
1
Beryllium and compounds
-
2.40E-03
I 5.00E-03
H
2.00E-05
1
0.007 -
1
Chromium(III), Insoluble Salts
-
-
1.50E+00
H
5.00E-03
A
0.013 -
1
Cobalt
-
9.00E-03
P 3.00E-03
P
2.00E-05
P
1 -
1
Copper
-
-
1.00E-02
A
-
1 -
1
Manganese (Non -diet)
-
-
2.40E-02
S
5.00E-05
1
0.04 -
1
Mercury (elemental)
-
-
-
3.00E-04
H
1 -
1
Molybdenum
-
-
5.00E-03
H
-
1 -
1
Nickel Soluble Salts
-
2.60E-04
C 2.00E-02
H
2.00E-04
A
0.04 -
1
Selenium
-
-
5.00E-03
H
2.00E-02
C
1 -
1
Strontium, Stable
-
-
2.00E+00
A
-
1 -
1
Thallium (Soluble Salts)
-
-
4.00E-05
S
-
1 -
1
Vanadium and Compounds
-
-
1.00E-02
A
1.00E-04
A
0.026 -
1
Zinc and Compounds
-
-
3.00E-01
A
-
1 -
1
*Total Risk/HI
-
-
-
-
- -
-
Output generated 21 MAR2016:14:44:13

Site -specific
Recreator Risk for Soil
Chemical
Arsenic, Inorganic
Barium
Beryllium and compounds
Chromium(III), Insoluble Salts
Cobalt
Copper
Manganese (Non -diet)
Mercury (elemental)
Molybdenum
Nickel Soluble Salts
Selenium
Strontium, Stable
Thallium (Soluble Salts)
Vanadium and Compounds
Zinc and Compounds
*Total Risk/HI
Soil Particulate
Volatilization Saturation Emission
Factor Concentration Factor
(m3/kg) (mg/kg) (m3/kg)
- 1.36E+09
- - 1.36E+09
- - 1.36E+09
- - 1.36E+09
- - 1.36E+09
- - 1.36E+09
- - 1.36E+09
3.47E+04 3.13E+00 1.36E+09
- - 1.36E+09
- - 1.36E+09
- - 1.36E+09
- - 1.36E+09
- - 1.36E+09
- - 1.36E+09
- - 1.36E+09
Concentration Ingestion Dermal Inhalation Carcinogenic
(mg/kg) Risk Risk
Risk
Risk
2.40E+01 9.76E-06 1.37E-06
3.54E-10
1.11 E-05
8.30E+02 - -
-
-
3.50E+00 - -
2.88E-11
2.88E-11
3.50E+01 - -
-
-
2.80E+01 - -
8.65E-10
8.65E-10
5.70E+01 - -
-
-
3.90E+01 - -
-
-
2.10E+00 - -
-
-
1.70E+00 - -
-
-
1.90E+01 - -
1.69E-11
1.69E-11
2.40E+00 - -
-
-
1.90E+02 - -
-
-
1.70E+00 - -
-
-
9.50E+01 - -
-
-
1.10E+02 - -
-
-
- 9.76E-06 1.37E-06
1.26E-09
1.11E-05
1.1
Output generated 21 MAR2016:14:44:13

Site -specific
Recreator Risk for Soil
Ingestion Dermal Inhalation Noncarcinogenic Ingestion Dermal
Child
Child
Child
Child
Adult
Adult
Chemical
HQ
HQ
HQ
HI
HQ
HQ
Arsenic, Inorganic
1.93E-01
2.29E-02
1.48E-05
2.16E-01
1.81 E-02
3.82E-03
Barium
1.67E-02
-
1.53E-06
1.67E-02
1.56E-03
Beryllium and compounds
2.81 E-03
-
1.62E-06
2.81 E-03
2.64E-04
Chromium(III), Insoluble Salts
9.38E-05
-
6.47E-08
9.38E-05
8.79E-06
Cobalt
3.75E-02
-
1.29E-05
3.75E-02
3.52E-03
Copper
2.29E-02
-
-
2.29E-02
2.15E-03
Manganese (Non -diet)
6.53E-03
-
7.21 E-06
6.54E-03
6.12E-04
Mercury (elemental)
-
-
2.53E-03
2.53E-03
-
Molybdenum
1.37E-03
-
-
1.37E-03
1.28E-04
Nickel Soluble Salts
3.82E-03
-
8.78E-07
3.82E-03
3.58E-04
Selenium
1.93E-03
-
1.11 E-09
1.93E-03
1.81 E-04
Strontium, Stable
3.82E-04
-
-
3.82E-04
3.58E-05
Thallium (Soluble Salts)
1.71 E-01
-
-
1.71 E-01
1.60E-02
Vanadium and Compounds
3.82E-02
-
8.78E-06
3.82E-02
3.58E-03
Zinc and Compounds
1.47E-03
-
-
1.47E-03
1.38E-04
*Total Risk/HI
4.97E-01
2.29E-02
2.58E-03
5.23E-01
4.66E-02
3.82E-03
Inhalation Noncarcinogenic
Adult
Adult
HQ
HI
1.48E-05
2.19E-02
1.53E-06
1.56E-03
1.62E-06
2.65E-04
6.47E-08
8.85E-06
1.29E-05
3.53E-03
-
2.15E-03
7.21 E-06
6.19E-04
2.53E-03
2.53E-03
-
1.28E-04
8.78E-07
3.59E-04
1.11 E-09
1.81 E-04
-
3.58E-05
-
1.60E-02
8.78E-06
3.59E-03
-
1.38E-04
2.58E-03
5.30E-02
P]
Output generated 21 MAR2016:14:44:13