3/5/2014 Page 1 of 31



### POST FOCUS EXPOSURE REPORT

Chemical ID: P -13-0212C Reviewer: Tobias/SD

Results Table: Dose, Concentration, and Days Exceeded Results Summary

Exposure

Scenario 1 Water Landfill Stack Air Fugitive Air

Drinking Water Fish Ingestion

ADR LADD ADR LADD 7Q10 4

CC =

1000 PDM

Days

Exceeded LADD ADR LADD ADR LADD

Release

activity(ies) 2 ;

exposure

calculation(s) 3 mg/kg/day mg/kg/day mg/kg/day mg/kg/day μg/l # Days mg/kg/day mg/kg/day mg/kg/day mg/k g/day mg/kg/day

MFG: Max

ADR: max

acute eco 4.20E

- 01

--- 5.33E

- 03

--- 8780.04

--- --- --- --- --- ---

MFG: Max

LADD --- 2.21E

- 04

--- 2.99E

- 06

--- --- --- --- --- --- ---

PROC: Max

ADR: max

acute eco 9.31 E-02

--- 2.12 E- 03

--- 1907.22

--- 3.66E

- 05

--- - -- ---

PROC: Max

LADD --- 5.59E

- 05

--- 7.57E

- 07

--- --- 9.62E

- 05

--- 5.63E

- 08

--- ---

USE: Max

ADR: max

acute eco 5.25E

- 02

--- 7.04E

- 04

--- --- --- --- 6.62E

- 06

--- --- ---

USE: PDM1

--- --- --- --- 1115.53

--- --- --- --- ---

USE: PDM2

--- --- --- - -- 937.5

--- --- --- --- ---

USE: Max

LADD --- 5.40E

- 04

--- 7.31E

- 06

--- --- 2.13E

- 04

--- 2.90E

- 07

--- ---

1 Exposure scenario titles consist of release activity followed by exposure calculation abbreviation.

2 Release activities are from engineering report's Manufacturing (Mfg), Processing (Proc) and Use release

activity labels. Multiple release activities are combined in one exposure scenario if their releases occur at

same location.

3 Exposure calculations are Acute Dose Rate (ADR), Lifetime Averag e Daily Dose (LADD), and

Probabilistic Dilution Model (PDM). There may be one, two, or all three exposure calculations per exposure

scenario. CC is the aquatic concentration of concern.

4 This column displays concentration values for the 7Q10 streamflow, which is defined as the average daily

streamflow of the seven consecutive days of lowest flow within a ten year period.

Remarks:3/5/2014 Page 2 of 31



### Results Table: Exposure Based (XB)/Persistent (P2B2) Criteria

Parameter Exp Based Persistent Exceedance Value

Drinking (Surface) Water Dose (mg/kg/day) NA No

Fish Ingestion Dose (mg/kg/day) NA No

Inhalation Dose (mg/kg/day) NA No

Groundwater Dose (mg/kg/day) NA No

Surface Water Release After Treatment (kg/yr)

Total Release After Treatment (kg/yr)

Consumer Use? No



### Fate test recommendations?: (default is NA)3/5/2014 Page 3 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212 Assessor: Tobias/AG

ENVIRONMENTAL RELEASES

Scenario#: 1 Number of Release Sites:

Relea se Activity: MFG: Max ADR

Release Description: WATER LANDFILL

Non

- sludge/Sludge STACK FUGITIVE

Total Releases:

Non

- sludge/Sludge

Release Days/yr:

Per Site Release:

(kg/site/day) (kg/site/day ) (kg/site/day) (kg/site/day)

Remarks:3/5/2014 Page 4 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RE LEASES

SCENARIO #: 1 Number of Sites: RELEASE ACTIVITY: MFG:

Max ADR

SIC

- CODE DESCRIPTION:

SIC

- CODE (S): EXPOSED POPULATION: Adult

WWT

REMOVAL

(%) RELEASE

DAYS PRETREATMENT

RELEASE

(kg/site/day) POSTTREATMENT

RELEASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 3.16

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

ALL 50 16.81 50.78 74.90 92.38

ALL 10 939.29 5063.97 8780.04 1.05E+04

DRINKING WATER AND FISH INGESTION EXPOSURE E STIMATES

Exposure Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 3.95E

- 06 2.21E

- 04 mg/kg/day 5.35E

- 08 2.99E

- 06 mg/kg/day

LADC pot 2.03E

- 04 1.13E

- 02 mg/L 6.40E

- 04 3.58E

- 02 mg/kg

Acute

ADR pot 4.24E

- 03 0.42 mg/kg/day 9.54E

- 05 5.33E

- 03 mg/kg/day

SIC Code Comments:3/5/2014 Page 5 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212 Assessor: Tobias/AG

ENVIRONMENTAL RELEASES

Scenario#: 2 Number of Release Sites:

Release Activity: MFG: Max LADD

Release Description: WATER LANDFILL

Non

- sludge/Sludge STACK FUGITIVE

Total Releases:

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non

- sludge/Sludge

Release Days/yr:

Per Site Release:

(kg/site/day) (kg/site/day ) (kg/site/day) (kg/site/day)

Remarks:3/5/2014 Page 6 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SU RFACE WATER RELEASES

SCENARIO #: 2 Number of Sites: RELEASE ACTIVITY: MFG:

Max LADD

SIC

- CODE DESCRIPTION:

SIC

- CODE (S): EXPOSED POPULATION: Adult

WWT

REMOVAL

(%) RELEASE

DAYS PRETREATMENT

RELEASE

(kg/site/day ) POSTTREATMENT

RELEASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 3.16

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

ALL 50 N/A N/A N/A N/A

ALL 10 N/A N/A N/A N/A

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

Exposure Unit s Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 3.95E

- 06 2.21E

- 04 mg/kg/day 5.35E

- 08 2.99E

- 06 mg/kg/day

LADC pot 2.03E

- 04 1.13E

- 02 mg/L 6.40E

- 04 3.58E

- 02 mg/kg

Acute

ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:3/5/2014 Page 7 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212 Assessor: Tobias/AG

ENVIRONMENTAL RELEASES

Scenario#: 3 Number of Release Sites:

Release Activity: PROC: Max ADR

Release Description: WATER LANDFILL

Non

- sludge/Sludge STACK FUGITIVE

Total Releases:

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non

- sludge/Sludge

Release Days/yr:

Per Site Relea se:

(kg/site/day) (kg/site/day ) (kg/site/day) (kg/site/day)

Remarks:3/5/2014 Page 8 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 3 Nu mber of Sites: RELEASE ACTIVITY: PROC:

Max ADR

SIC

- CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.)

SIC

- CODE (S): Subset of 4952 EXPOSED POPULATION: Adult

WWT

REMOVAL

(%) RELEASE

DAYS PRETREATMENT

RELEASE

(kg/site/day) POS TTREATMENT

RELEASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 3.16

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

ALL 50 288.00 123.84 78.18 66.05 51.39 119.51 189.31 224.07

ALL 10 39.60 13.29 7.76 7.57 373.74 1113.62 1907.22 1955.09

DRINKING WATER AND FISH INGESTION EXPOSURE E STIMATES

Exposure Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 7.69E

- 06 5.59E

- 05 mg/kg/day 1.04E

- 07 7.57E

- 07 mg/kg/day

LADC pot 3.94E

- 04 2.87E

- 03 mg/L 1.25E

- 03 9.06E

- 03 mg/kg

Acute

ADR pot 9.99E

- 03 9.31E

- 02 mg/kg/day 2.92E

- 04 2.12E

- 03 mg/kg/day

SIC Code Comments:3/5/2014 Page 9 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID: P- 13

- 0212

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO # : 3 RELEASE ACTIVITY: PRO C: Max ADR

SIC CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.)

ASSOCIATED SIC CODES: Subset of 4952

SIC CODE RESULTS

COC (μg/L) Percent of

Year COC

Exceeded Number of

Days COC

Exceeded Release

days/year Loading

(kg/site/day) Waste Water

Treatment (%) High/Avg

Analysis

1000.00 High3/5/2014 Page 10 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212

INHALATION EXPOSURE ESTIMATES (POST

- TREATMENT)

SCENARIO #: 3 RELEASE ACTIVITY: PROC: Max ADR

RELEASE DESCRIPTION:

METHO D OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites:

Per Site Fugitive Release: kg/site/day

Fugitive Release Days per Year: days

% Removal via Fugitive Release: %

Total Fugitive Release: kg/yr

Max Annual Average Air Concentration

(Fugitive): 0.00 μ g/m 3

Max 24 Hour Average Air

Concentration(Fugitive): 0.00 μ g/m 3

Per Site Stack Release: kg/ site/day

Stack Release Days per Year: days

% Removal via Stack Release: %

To tal Stack Release: kg/yr

Max Annual Average Air Concentration (Stack): 7.65E

- 04 μ g/m 3

Max 24 Hour Average Air Concentration (Stack): 0.20 μ g/m 3

Exposure Units Results

(Stack) Results

(Fugitive) ASSUMPTIONS

ED

(years) AT

(years) BW

(kg) Inh. Rate

(m 3 /hr)

Cancer

LADD pot (mg/kg/day) 5.63E

- 08 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 3.06E

- 07 N/A 30.00 75.00 NA NA

Acute

ADR pot (mg/kg/day) 3.66E

- 05 N/A NA 1 day 71.80 0.55

Inhalation Comments:3/5/2014 Page 11 of 31

Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: N/A

Inside Stack

Diameter: 0.10 m Length of Release

Opening: N/A

Stack Gas Exit

Velocity: 0.10 m/sec Width of Release

Opening: N/A

Stack Gas

Temperature: 293. 00 K

Meteorological and Terrain Information:

Surrounding Land Use: Rural

Terrain Height: 0.00 m

Distance to Residence of Interest: 100.00 m

Meteorological Class: Full

Stability Class: NA

Wind Speed: NA

Downwash Information:

Facility Length: NA m

Facility Width: NA m

Facility Height: NA m3/5/2014 Page 12 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212 Assessor: Tobias/AG

ENVIRONMENTAL RELEASES

Scenario#: 4 Number of Release Sites:

Release Activity: PR OC: Max LADD

Release Description: WATER LANDFILL

Non

- sludge/Sludge STACK FUGITIVE

Total Releases:

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non

- sludge/Sludge

Release Days/yr:

Per Site Release:

(kg/site/day) (kg/site/day ) (kg/site/day) (kg/site/day)

Remarks:3/5/2014 Page 13 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

S CENARIO #: 4 Number of Sites: RELEASE ACTIVITY: PROC:

Max LADD

SIC

- CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.)

SIC

- CODE (S): Subset of 4952 EXPOSED POPULATION: Adult

WWT

REMOVAL

(%) RELEASE

DAYS PRETREATMENT

RELEASE

( kg/site/day) POSTTREATMENT

RELEASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 3.16

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

ALL 50 288.00 123.84 78.18 66.05 N/A N/A N/A N/A

ALL 10 39.60 13.29 7.76 7.57 N/A N/A N/A N/A

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 7.69E

- 06 5.59E

- 05 mg/kg/day 1.04E

- 07 7.57E

- 07 mg/kg/day

LADC pot 3.94E

- 04 2.87E

- 03 mg/L 1.25E

- 03 9.06E

- 03 mg/kg

Acute

ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:3/5/2014 Page 14 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID: P

- 13

- 0212

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 4 ACTIVITY: PROC: Max LADD

RELEASE DESCRIPTION:

EXPOSED POPULATION: Adu lt

NUMBER

OF

SITES NON

- SLUDGE

LANDFILL

RELEASE AND

DAYS OF

RELEASE

(kg/site/day ) /(days) LANDFILLED

SLUDGE 1

AND DAYS OF

RELEASE

(kg/site/day ) /(days) MIGRATION

DESCRIPTOR 2 ADSORPTION

TO

WASTEWATER

SLUDGE

(%) DRINKING

WATER

TREATMENT

(%)

0.00 0.00

1 Landfilled sludge equals the fraction adsorbed to wastewater treatment sludge times the surface

water pre

- treatment release.

2 Migration Descriptor Log Koc Groundwater Concentration (GWC)

(mg/L per kg release)

Negligible no migration None

Negligible to slow > 4.5 3.21E

- 6

Slow <4.5 to 3.5 2.67E

- 5

Moderate <3.5 to 2.5 5.95E

- 5

Rapid <2.5 7.5 5E

- 5

Exposure Units Results ASSUMPTIONS

ED

(years) AT

(years) BW

(kg) IR

(L/day)

Cancer

LADD pot (mg/kg/day) 9.62E

- 05 30.00 75.00 71.80 1.40

LADC pot (mg/L) 4.93E

- 03 30.00 75.00 NA NA

REMARKS:3/5/2014 Page 15 of 31

POST FOCUS EXPOSURE REPORT

Ch emical ID : P- 13

- 0212

INHALATION EXPOSURE ESTIMATES (POST

- TREATMENT)

SCENARIO #: 4 RELEASE ACTIVITY: PROC: Max LADD

RELEASE DESCRIPTION:

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites:

Per Site Fugitive Releas e: kg/site/day

Fugitive Release Days per Year: days

% Removal via Fugitive Release: %

Total Fugitive Release: kg/yr

Max Annual Average Air Concentration

(Fugitive): 0.00 μ g/m 3

Max 24 Hour Average Air

Concentration(Fugitive): N/A μ g/m 3

Per Site Stack Release: kg/ site/day

Stack Release Days per Year: days

% Removal via Stack Release: %

To tal Stack Release: kg/yr

Max Annual Average Air Concentration (Stack): 7.65E

- 04 μ g/m 3

Max 24 Hour Average Air Concentrat ion (Stack): N/A μ g/m 3

Exposure Units Results

(Stack) Results

(Fugitive) ASSUMPTIONS

ED

(years) AT

(years) BW

(kg) Inh. Rate

(m 3 /hr)

Cancer

LADD pot (mg/kg/day) 5.63E

- 08 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 3.06E

- 07 N/A 30.00 75.00 NA NA

Acute

ADR pot (mg/kg/day) N/A N/A NA 1 day 71.80 0.55

Inhalation Comments:3/5/2014 Page 16 of 31

Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: N/A

Inside Stack

Diamet er: 0.10 m Length of Release

Opening: N/A

Stack Gas Exit

Velocity: 0.10 m/sec Width of Release

Opening: N/A

Stack Gas

Temperature: 293.00 K

Meteorological and Terrain Information:

Surrounding Land Use: Rural

Terrain Height: 0.00 m

Distanc e to Residence of Interest: 100.00 m

Meteorological Class: Full

Stability Class: NA

Wind Speed: NA

Downwash Information:

Facility Length: NA m

Facility Width: NA m

Facility Height: NA m3/5/2014 Page 17 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P-13- 0212 Assessor: Tobias/AG

ENVIRONMENTAL RELEASES

Scenario#: 5 Number of Release Sites:

Release Activity: USE: Max ADR

Release Description: WATER LANDFILL

Non

- sludge/Sludge STACK FUGITIVE

Total Releases:

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non

- sludge/Sludge

Release Days/yr:

Per Site Release:

(kg/site/day) (kg/site/day ) (kg/site/day) (kg/site/day)

Remarks:3/5/2014 Page 18 of 31

POST FO CUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 5 Number of Sites: RELEASE ACTIVITY: USE: Max

ADR

SIC

- CODE DESCRIPTION:

SIC

- CODE (S): EXPOSED POPULATION: Adult

WWT

REMOVAL

(%) RELEASE

DAYS PRETREATMENT

RELEASE

(kg/site/day) POSTTREATMENT

RELEASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 3.16

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

ALL 50 9.80 27.41 43.63 52.98

ALL 10 124.05 627.93 1115.53 1297.36

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMAT ES

Exposure Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 8.17E

- 06 1.03E

- 04 mg/kg/day 1.11E

- 07 1.40E

- 06 mg/kg/day

LADC pot 4.19E

- 04 5.30E

- 03 mg/L 1.32E

- 03 1.68E

- 02 mg /kg

Acute

ADR pot 2.29E

- 03 5.25E

- 02 mg/kg/day 5.56E

- 05 7.04E

- 04 mg/kg/day

SIC Code Comments:3/5/2014 Page 19 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212

INHALATION EXPOSURE ESTIMATES (POST

- TREATMENT)

SCENARIO #: 5 RELEASE ACTIVITY: USE: Max ADR

RELEASE DES CRIPTION:

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites:

Per Site Fugitive Release: kg/site/day

Fugitive Release Days per Year: days

% Removal via Fugitive Release: %

Total Fugitive Release: kg/yr

Max Annual Average Air Concentration

(Fugitive): 0.00 μ g/m 3

Max 24 Hour Average Air

Concentration(Fugitive): 0.00 μ g/m 3

Per Site Stack Release: kg/ site/day

Stack Release Days per Year: days

% Removal via Stack Release: %

To ta l Stack Release: kg/yr

Max Annual Average Air Concentration (Stack): 7.69E

- 04 μ g/m 3

Max 24 Hour Average Air Concentration (Stack): 3.60E

- 02 μ g/m 3

Exposure Units Results

(Stack) Results

(Fugitive) ASSUMPTIONS

ED

(years) AT

(years) BW

( kg) Inh. Rate

(m 3 /hr)

Cancer

LADD pot (mg/kg/day) 5.66E

- 08 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 3.08E

- 07 N/A 30.00 75.00 NA NA

Acute

ADR pot (mg/kg/day) 6.62E

- 06 N/A NA 1 day 71.80 0.55

Inhalation Comments:3/5/2014 Page 20 of 31

Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: N/A

Inside Stack

Diameter: 0.10 m Length of Release

Opening: N/A

Stack Gas Exit

Velocity: 0.10 m/sec Width of Release

Opening: N/A

Stack Gas

Temperature: 293.00 K

Meteorological and Terrain Information:

Surrounding Land Use: Rural

Terrain Height: 0.00 m

Distance to Residence of Interest: 100.00 m

Meteorological Class: Full

Stability Class: NA

Wind Speed: NA

Downwash Information:

Facility Length: NA m

Facility Width: NA m

Facility Height: NA m3/5/2014 Page 21 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212 Assessor: Tobias/AG

ENVIRONMENTAL RELEASES

Scenario#: 6 Number of Release Sites:

Release Activity: USE: PDM1

Release Description: WATER LANDFILL

Non

- sludge/Sludge STACK FUGITIVE

Total Releases:

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non

- sludge/Sludge

Release Days/yr:

Per Site Release:

(kg/site/day) (kg/site/day ) (kg/site/day) (kg/site/day)

Remarks:3/5/2014 Page 22 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELE ASES

SCENARIO #: 6 Number of Sites: RELEASE ACTIVITY: USE:

PDM1

SIC

- CODE DESCRIPTION:

SIC

- CODE (S): EXPOSED POPULATION: Adult

WWT

REMOVAL

(%) RELEASE

DAYS PRETREATMENT

RELEASE

(kg/site/day) POSTTREATMENT

RELEASE

(kg/sit e/day) DWT

(%) BCF

(L/kg)

0.00 3.16

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

A LL 50 9.80 27.41 43.63 52.98

ALL 10 124.05 627.93 1115.53 1297.36

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking

Water Units Fish Ingestion Results F ish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 8.17E

- 06 1.03E

- 04 mg/kg/day 1.11E

- 07 1.40E

- 06 mg/kg/day

LADC pot 4.19E

- 04 5.30E

- 03 mg/L 1.32E

- 03 1.68E

- 02 mg/kg

Acute

ADR pot 2.29E

- 03 5.25E

- 02 mg/kg/day 5.56E

- 05 7.04E

- 04 mg/kg/day

SIC Code C omments:3/5/2014 Page 23 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID: P- 13

- 0212

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO # : 6 RELEASE ACTIVITY: USE: PDM1

SIC CODE DESCRIPTION:

ASSOCIATED SIC CODES:

SIC CODE RESU LTS

COC (μg/L) Percent of

Year COC

Exceeded Number of

Days COC

Exceeded Release

days/year Loading

(kg/site/day) Waste Water

Treatment (%) High/Avg

Analysis

1000.00 High3/5/2014 Page 24 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212 Assessor: Tobias/AG

ENVIRONMENTAL RELEASES

Scenario#: 7 Number of Release Sites:

Release Activity: USE: PDM2

Release Description: WATER LANDFILL

Non

- sludge/Sludge STACK FUGITIVE

Total Releases:

(kg/yr) (kg/yr ) (kg/yr) (kg/yr)

Non

- sludge/Sludge

Release Days/yr:

Per Site Release:

(kg/site/day) (kg/site/day ) (kg/site/day) (kg/site/day)

Remarks:3/5/2014 Page 25 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 7 Number of Sites: RELEASE ACTIVITY: USE:

PDM2

SIC

- CODE DESCRIPTION:

SIC

- CODE (S): EXPOSED POPULATION: Adul t

WWT

REMOVAL

(%) RELEASE

DAYS PRETREATMENT

RELEASE

(kg/site/day) POSTTREATMENT

RELEASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 3.16

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

FACILITY STREAM F LOW (MLD) STREAM CONC. (μg/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

ALL 50 8.24 23.03 36.67 44.52

ALL 10 104.25 527.72 937.50 1090.31

DRINKING WATER AND FISH INGESTION EXPOSUR E ESTIMATES

Exposure Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 4.14E

- 05 5.24E

- 04 mg/kg/day 5.60E

- 07 7.09E

- 06 mg/kg/day

LADC pot 2.12E

- 03 2.68E

- 02 mg/L 6.70E

- 03 8.48E

- 02 mg/kg

Acute

ADR pot 1.92E

- 03 4.41E

- 02 mg/kg/day 4.68E

- 05 5.92E

- 04 mg/kg/day

SIC Code Comments:3/5/2014 Page 26 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID: P- 13

- 0212

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO # : 7 RELEASE ACTIVITY: USE: PDM2

SIC CODE DESCRIPTION:

ASSOCIATED SIC CODES:

SIC CODE RESULTS

COC (μg/L) Percent of

Year COC

Exceeded Number of

Days COC

Exceeded Release

days/year Loading

(kg/site/day) Waste Water

Treatment (%) High/Avg

Analysis

1000.00 High3/5/2014 Page 27 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212 Assessor: Tobias/AG

ENVIRONMENTAL RELEASES

Scenario#: 8 Number of Release Sites:

Release Ac tivity: USE: Max LADD

Release Description: WATER LANDFILL

Non

- sludge/Sludge STACK FUGITIVE

Total Releases:

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non

- sludge/Sludge

Release Days/yr:

Per Site Release:

(kg/site/day) (kg/site/day ) (kg/site/day) (kg/site/day)

Remarks:3/5/2014 Page 28 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WAT ER RELEASES

SCENARIO #: 8 Number of Sites: RELEASE ACTIVITY: USE: Max

LADD

SIC

- CODE DESCRIPTION:

SIC

- CODE (S): EXPOSED POPULATION: Adult

WWT

REMOVAL

(%) RELEASE

DAYS PRETREATMENT

RELEASE

(kg/site/day) POSTTREATMENT

RELE ASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 3.16

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

ALL 50 N/A N/A N/A N/A

ALL 10 N/A N/A N/A N/A

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Inge stion

Units

50% 10% 50% 10%

Cancer

LADD pot 4.27E

- 05 5.40E

- 04 mg/kg/day 5.78E

- 07 7.31E

- 06 mg/kg/day

LADC pot 2.19E

- 03 2.77E

- 02 mg/L 6.91E

- 03 8.75E

- 02 mg/kg

Acute

ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:3/5/2014 Page 29 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID: P

- 13

- 0212

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 8 ACTIVITY: USE: Max LADD

RELEASE DESCRIPTION:

EXPOSED POPULATION: Adult

NUMBER

OF

SITES NON

- SLUDGE

LANDFILL

RELEASE AND

DAYS OF

RELEASE

(kg/site/day ) /(days) LANDFILLED

SLUDGE 1

AND DAYS OF

RELEASE

(kg/site/day ) /(days) MIGRATION

DESCRIPTOR 2 ADSORPTION

TO

WASTEWATER

SLUDGE

(%) DRINKING

WATER

TREATMENT

(%)

0.00 0.00

1 La ndfilled sludge equals the fraction adsorbed to wastewater treatment sludge times the surface

water pre

- treatment release.

2 Migration Descriptor Log Koc Groundwater Concentration (GWC)

(mg/L per kg release)

Negligible no migration None

Negligible to slow > 4.5 3.21E

- 6

Slow <4.5 to 3.5 2.67E

- 5

Moderate <3.5 to 2.5 5.95E

- 5

Rapid <2.5 7.55E

- 5

Exposure Units Results ASSUMPTIONS

ED

(year s) AT

(years) BW

(kg) IR

(L/day)

Cancer

LADD pot (mg/kg/day) 2.13E

- 04 30.00 75.00 71.80 1.40

LADC pot (mg/L) 1.09E

- 02 30.00 75.00 NA NA

REMARKS:3/5/2014 Page 30 of 31

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 13

- 0212

INHALATION EXPOSURE ESTIMATES (POST

- TREATMENT)

SC ENARIO #: 8 RELEASE ACTIVITY: USE: Max LADD

RELEASE DESCRIPTION:

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites:

Per Site Fugitive Release: kg/site/day

Fugitive Release Days per Year: days

% Removal via Fugitive Release: %

Total Fugitive Release: kg/yr

Max Annual Average Air Concentration

(Fugitive): 0.00 μ g/m 3

Max 24 Hour Average Air

Concentration(Fugitive): N/A μ g/m 3

Per Site Stack Release: kg/ site/day

Stack Release Days per Yea r: days

% Removal via Stack Release: %

To tal Stack Release: kg/yr

Max Annual Average Air Concentration (Stack): 3.95E

- 03 μ g/m 3

Max 24 Hour Average Air Concentration (Stack): N/A μ g/m 3

Exposure Units Results

(Stack) Results

(F ugitive) ASSUMPTIONS

ED

(years) AT

(years) BW

(kg) Inh. Rate

(m 3 /hr)

Cancer

LADD pot (mg/kg/day) 2.90E

- 07 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 1.58E

- 06 N/A 30.00 75.00 NA NA

Acute

ADR pot (mg/kg/day) N/A N/A NA 1 day 71.80 0.55

Inhalation Co mments:3/5/2014 Page 31 of 31

Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: N/A

Inside Stack

Diameter: 0.10 m Length of Release

Opening: N/A

Stack Gas Exit

Velocity: 0.10 m/sec Width of Release

Opening: N/A

Stack Gas

Temperature: 293.00 K

Meteorological and Terrain Information:

Surrounding Land Use: Rural

Terrain Height: 0.00 m

Distance to Residence of Interest: 100.00 m

Meteorological Class: Full

Stab ility Class: NA

Wind Speed: NA

Downwash Information:

Facility Length: NA m

Facility Width: NA m

Facility Height: NA m