1/11/2013 Page 1 of 19



### INITIAL REVIEW EXPOSURE REPORT (IRExR) Chemical ID: P-13-0178 Reviewer: Bevington/BC

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 = 5 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/kg/day mg/kg/day

PROC 1: max acute eco --- --- --- --- 8.63E+00 --- --- --- --- --- ---

PROC 1: PDM1 --- --- --- --- 1.33E+00 0 --- --- --- --- ---

PROC 2: max acute eco --- --- --- --- 6.38E+01 --- --- --- --- --- ---

PROC 2: PDM1 --- --- --- --- 1.42E+00 0 --- --- --- --- ---

1 Exposure scenario titles consist of release activity followed by exposure calculation abbreviation. 2 Release activities are from engineering report's Manufact uring (Mfg), Processing (Proc) and Use release activity labels. Multiple release activities are combined in one exposu re scenario if their releases occur at same location. 3 Exposure calculations are Acute Dose Rate (ADR), Lifetime Average 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:1/11/2013 Page 2 of 19


### Results Table: Consumer Exposure Results Summary

Water (DtD) Dermal Inhalation Drinking Water Fish Ingestion ADR LADD ADR LADD 7Q10 PDM Days Exceede d ADR LADD ADR LADD

Scenario mg/kg/da y mg/kg/day mg/kg/day mg/kg/day μg/l # Days mg/kg/day mg/kg/day mg/kg/day mg/kg/day

CEM 2
, Laundry detergent --- --- --- --- --- --- 3.46E-05 3.75E-06 1.23E-03 2.06E-04

CEM 2
, Solid air freshener --- --- --- --- --- --- --- --- 7.22E-04 4.29E-06

CEM 2
, Bar soap --- --- --- --- --- --- 5.85E-04 1.18E-05 --- ---

CEM 2
, Perfume --- --- --- --- --- --- --- --- 8.24E-03 6.26E-03

1 Down-the-Drain Module within NCEM2 model. 2 Consumer Exposure Module within NCEM2 model.1/11/2013 Page 3 of 19

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-13-0178 Assessor: Bevington/BC
ENVIRONMENTAL RELEASES
Scenario#:1 Number of Release Sites: 1. Release Activity: PROC 1: Max ADR Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: 1.43 N/A N/A N/A (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr: 11.00 0.00/0.00 N/A N/A
Per Site Release: 0. 13 N/A/0.00 N/A N/A (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:1/11/2013 Page 4 of 19

INITIAL REVIEW EX POSURE REPORT
Chemical ID: P-13-0178
SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES
SCENARIO #: 1 Number of Site s: 1 RELEASE ACTIVITY:PROC 1: Max ADR SIC-CODE DESCRIPTION: Soaps, Detergent, etc. Manufacture SIC-CODE (S): 2841-2844 EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg) 31.00 11. 0.13 8.97E-02 0.00 300.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER PLANT TYPE % ILE FACILITY STREAM FLOW (MLD) STREAM CONC. ( μ g/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 413.73 144.88 85.50 75.59 0.22 0.62 1.05 1.19
ALL 10 47.35 23.64 10.39 11.73 1.89 3.79 8.63 7.65

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 5.10E-08 4.45E-07 mg/kg/day 6.55E-08 5.73E-07 mg/kg/day
LADC pot 2.61E-06 2.28E-05 mg/L 7.84E-04 6.85E-03 mg/kg
Acute
ADR pot 5.17E-05 3.17E-04 mg/kg/day 1.17E-04 1.02E-03 mg/kg/day

SIC Code Comments:1/11/2013 Page 5 of 19

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-13-0178 Assessor: Bevington/BC
ENVIRONMENTAL RELEASES
Scenario#:2 Number of Release Sites: 1. Release Activity: PROC 1: PDM1 Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: 0.40 N/A N/A N/A (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr: 20.00 0.00/0.00 N/A N/A
Per Site Release: 2.00 E-02 N/A/0.00 N/A N/A (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:1/11/2013 Page 6 of 19

INITIAL REVIEW EX POSURE REPORT
Chemical ID: P-13-0178
SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES
SCENARIO #: 2 Number of Site s: 1 RELEASE ACTIVITY:PROC 1: PDM1 SIC-CODE DESCRIPTION: Soaps, Detergent, etc. Manufacture SIC-CODE (S): 2841-2844 EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg) 31.00 20. 0.02 1.38E-02 0.00 300.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER PLANT TYPE % ILE FACILITY STREAM FLOW (MLD) STREAM CONC. ( μ g/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 413.73 144.88 85.50 75.59 3.34E-02 9.53E-02 0.16 0.18
ALL 10 47.35 23.64 10.39 11.73 0.29 0.58 1.33 1.18

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 1.43E-08 1.25E-07 mg/kg/day 1.83E-08 1.60E-07 mg/kg/day
LADC pot 7.31E-07 6.39E-06 mg/L 2.19E-04 1.92E-03 mg/kg
Acute
ADR pot 7.96E-06 4.88E-05 mg/kg/day 1.80E-05 1.57E-04 mg/kg/day

SIC Code Comments:1/11/2013 Page 7 of 19

INITIAL REVIEW EX POSURE REPORT
Chemical ID: P-13-0178

SIC CODE EXPOSURES TO SURFACE WATER RELEASES
SCENARIO #: 2 RELEASE ACTIVITY: PROC 1: PDM1 SIC CODE DESCRIPTION: Soaps, Detergent, etc. Manufacture
ASSOCIATED SIC CODES: 2841-2844
SIC CODE RESULTS

COC ( μ g/L) Percent of Year COC Exceeded Number of Days COC Exceeded Release days/year Loading (kg/site/day) Waste Water Treatment (%) High/Avg Analysis

5.00 0 0 20.00 2.00E-02 31.00 High1/11/2013 Page 8 of 19

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-13-0178 Assessor: Bevington/BC
ENVIRONMENTAL RELEASES
Scenario#:3 Number of Release Sites: 1. Release Activity: PROC 2: Max ADR Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: 5.77 N/A N/A N/A (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr: 6.00 0.00/0.00 N/A N/A
Per Site Release: 0. 96 N/A/0.00 N/A N/A (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:1/11/2013 Page 9 of 19

INITIAL REVIEW EX POSURE REPORT
Chemical ID: P-13-0178
SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES
SCENARIO #: 3 Number of Site s: 1 RELEASE ACTIVITY:PROC 2: Max ADR SIC-CODE DESCRIPTION: Soaps, Detergent, etc. Manufacture SIC-CODE (S): 2841-2844 EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg) 31.00 6. 0.961 0.66 0.00 300.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER PLANT TYPE % ILE FACILITY STREAM FLOW (MLD) STREAM CONC. ( μ g/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 413.73 144.88 85.50 75.59 1.60 4.58 7.76 8.77
ALL 10 47.35 23.64 10.39 11.73 14.00 28.05 63.82 56.53

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 2.05E-07 1.80E-06 mg/kg/day 2.64E-07 2.31E-06 mg/kg/day
LADC pot 1.05E-05 9.21E-05 mg/L 3.16E-03 2.76E-02 mg/kg
Acute
ADR pot 3.82E-04 2.34E-03 mg/kg/day 8.64E-04 7.55E-03 mg/kg/day

SIC Code Comments:1/11/2013 Page 10 of 19

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-13-0178 Assessor: Bevington/BC
ENVIRONMENTAL RELEASES
Scenario#:4 Number of Release Sites: 1. Release Activity: PROC 2: PDM1 Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: 5.35 N/A N/A N/A (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr: 250.00 0.00/0.00 N/A N/A
Per Site Release: 2.14 E-02 N/A/0.00 N/A N/A (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:1/11/2013 Page 11 of 19

INITIAL REVIEW EX POSURE REPORT
Chemical ID: P-13-0178
SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES
SCENARIO #: 4 Number of Site s: 1 RELEASE ACTIVITY:PROC 2: PDM1 SIC-CODE DESCRIPTION: Soaps, Detergent, etc. Manufacture SIC-CODE (S): 2841-2844 EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg) 31.00 250. 0.0214 1.48E-02 0.00 300.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER PLANT TYPE % ILE FACILITY STREAM FLOW (MLD) STREAM CONC. ( μ g/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 413.73 144.88 85.50 75.59 3.57E-02 0.10 0.17 0.20
ALL 10 47.35 23.64 10.39 11.73 0.31 0.62 1.42 1.26

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 1.91E-07 1.67E-06 mg/kg/day 2.45E-07 2.14E-06 mg/kg/day
LADC pot 9.78E-06 8.54E-05 mg/L 2.93E-03 2.56E-02 mg/kg
Acute
ADR pot 8.52E-06 5.22E-05 mg/kg/day 1.92E-05 1.68E-04 mg/kg/day

SIC Code Comments:1/11/2013 Page 12 of 19

INITIAL REVIEW EX POSURE REPORT
Chemical ID: P-13-0178

SIC CODE EXPOSURES TO SURFACE WATER RELEASES
SCENARIO #: 4 RELEASE ACTIVITY: PROC 2: PDM1 SIC CODE DESCRIPTION: Soaps, Detergent, etc. Manufacture
ASSOCIATED SIC CODES: 2841-2844
SIC CODE RESULTS

COC ( μ g/L) Percent of Year COC Exceeded Number of Days COC Exceeded Release days/year Loading (kg/site/day) Waste Water Treatment (%) High/Avg Analysis

5.00 0 0 250.00 2.14E-02 31.00 High1/11/2013 Page 13 of 19

CEM Inputs ID Number: P-13-0178,5 Product: unknown Chemical Name: P-13-0178 Scenario: Laundry Detergent Population: Adult Molecular Weight (g/mole): 198 Vapor Pressure (torr) 0.096 Consumer Product Weight Fraction - Central Tendency (unitless): 0.0002 Consumer Product Weight Fraction - HighEnd (unitless): 0.0002

Inhalation Inputs Frequency of Use (chronic) (events/yr): 312 Exposure Duration (chronic) (years): 57 Frequency of Use (acute) (events/day): 1 Exposure Duration (acute) (days): 1 Mass of Product Used per Event - Central Tendency (g): 200 Mass of Product Used per Event - High-End (g): 400

Inhalation Rate During Use (m 3 /hr): 1.1 Duration of Event - Central Tendency (hours/event): 0.333

Inhalation Rate After Use (m 3 /hr): 0.55 Duration of Event - High-End (hours/event): 0.667

Zone 1 Volume (m 3 ): 20 Whole House Volume (m 3 ): 369 Air Exchange Rate (air exchanges/hr): 0.45 Body Weight (kg): 71.8

Activity Patterns (Note: 1=Bedroom 2= Kitchen 3=Bathroom 4=Living Room 5=Utility Room 6=Car 7=Out)
User: 1 1 1 1 1 1 1 2 3 5 5 4 2 4 6 7 4 2 2 7 4 4 4 1
Non-User: 1 1 1 1 1 1 1 1 3 2 4 4 2 4 7 7 4 2 2 7 4 4 4 1
Hour: 0 6 12 18 Start Time: 9 Room of Use: 5. Utility Room Dermal Inputs Frequency of Use (chronic) (events/yr): 52 SA/BW (cm2/kg): 15.6 Frequency of Use (acute) (events/day): 1 Exposure Duration (chronic) (years): 57 Amount Retained / Absorbed to Skin (g/cm2-event): 1.11e-05 Exposure Duration (acute) (days): 1

Averaging Time (chronic) (days): 2.74e+04 Averaging Time (acute) (days) : 11/11/2013 Page 14 of 19

CEM Inhalation Exposure Estimates ID Number: P-13-0178,5 Scenario: Laundry Detergent (Machine Washing) Population: Adult Exposure Duration (years) chronic: 57 Exposure Duration (days) acute: 1

Exposure Units Result AT (days)
Chronic Cancer
LADD pot (mg/kg-day) 2.06e-04 2.74e+04
LADC pot (mg/m 3 ) 6.40e-04 2.74e+04
Acute
ADR pot

(mg/kg-day) 1.23e-03 1 Cp pot (mg/m 3 ) 1.01e-01 NA

LADD - Lifetime Average Daily Dose (mg/kg-day) LADC - Lifetime Average Daily Concentration (mg/m 3 ) ADR - Acute Dose Rate (mg/kg-day) Cp - Peak Concentration (mg/m 3 )

Note: 75 years = 2.738e+04 days pot - potential dose
Note: The general Agency guidance for assessing short-term, infre quent events (for most chemicals, an exposure of less than 24 hours that occurs no more frequently than monthly) is to treat such events as independent, acu te exposures rather than as chronic exposure. (Methods for E xposure-Response Analysis for Acute Inha lation Exposure to Chemicals (External Review Draft). EPA/600/R-98/051. April 1998)1/11/2013 Page 15 of 19

CEM Dermal Exposure Estimates ID Number: P-13-0178,5 Scenario: Laundry Detergent (Hand Washing) Population: Adult

Exposure Duration (chronic) (years): 57 Exposure Duration (acute) (days): 1

Exposure Units Result AT (days) Chronic Cancer
LADD pot (mg/kg-day) 3.75e-06 2.74e+04
Acute
ADR pot

(mg/kg-day) 3.46e-05 1

LADD - Lifetime Average Daily Dose (mg/kg-day) ADR - Acute Dose Rate (mg/kg-day)1/11/2013 Page 16 of 19

CEM Inputs ID Number: P-13-0178,6
Product: unknown Chemical Name: P-13-0178 Scenario: Solid Air Freshener Population: Adult Molecular Weight (g/mole): 198 Vapor Pressure (torr): 0.096 Consumer Product Weight Fraction - Central Tendency (unitless): 0.0002 Consumer Product Weight Fraction - High-End (unitless): 0.0002

Inhalation Inputs Frequency of Use (chronic) (events/yr): 6.14 Exposure Duration (chronic) (years): 57 Frequency of Use (acute) (events/day): 1 Exposure Duration (acute) (days): 1 Mass of Product Used per Event - Central Tendency (g): 52.7 Mass of Product Used per Event - High-End (g): 113.4

Inhalation Rate During Use (m 3 /hr): 1.1 Duration of Event - Central Tendency (hours/event): 720

Inhalation Rate After Use (m 3 /hr): 0.55 Duration of Event - High-End (hours/event): 2160

Zone 1 Volume (m 3 ): 9 Whole House Volume (m 3 ): 369 Air Exchange Rate (air exchanges/hr): 0.45 Body Weight (kg): 71.8

Activity Patterns
User: 1 1 1 1 1 1 1 2 3 1 5 4 2 4 6 7 4 2 2 7 4 4 4 1
Non-User: 1 1 1 1 1 1 1 1 3 2 4 4 2 4 7 7 4 2 2 7 4 4 4 1
Hour:0 6 12 18 Start Time: 12 Room of Use: 3. Bathroom Dermal Inputs There are no Dermal inputs for this scenario. Averaging Time (chronic) (days): 2.74e+04 Averaging time (acute) (days) : 11/11/2013 Page 17 of 19

CEM Inhalation Exposure Estimates ID Number: P-13-0178,6 Scenario: Solid Air Freshener Population: Adult Exposure Duration (years) chronic: 57 Exposure Duration (days) acute: 1

Exposure Units Result AT (days)
Chronic Cancer
LADD pot (mg/kg-day) 4.29e-06 2.74e+04
LADC pot (mg/m 3 ) 2.33e-05 2.74e+04
Acute
ADR pot

(mg/kg-day) 7.22e-04 1 Cp pot (mg/m 3 ) 1.46e-02 NA

LADD - Lifetime Average Daily Dose(mg/kg-day) LA DC - Lifetime Average Daily Concentration (mg/m 3 ) ADR - Acute Dose Rate (mg/kg-day) Cp - Peak Concentration (mg/m 3 )

Note: 75 years = 2.738e+04 days pot - potential dose
Note: The general Agency guidance for assessing short-term, infre quent events (for most chemicals, an exposure of less than 24 hours that occurs no more frequently than monthly) is to treat such events as independent, acu te exposures rather than as chronic exposure. (Methods for E xposure-Response Analysis for Acute Inha lation Exposure to Chemicals (External Review Draft). EPA/600/R-98/051. April 19981/11/2013 Page 18 of 19

CEM Inputs ID Number: P-13-0178,7 Product: unknown Chemical Name: P-13-0178 Scenario: Bar Soap Population: Adult Molecular Weight (g/mole): 198 Consumer Product Weight Fraction - Central Tendency (unitless): 0.0002 Consumer Product Weight Fraction - High-End (unitless): 0.0002

Inhalation Inputs There are no Inhalation inputs for this scenario. Activity Patterns There are no Activity Patterns for this scenario. Dermal Inputs Frequency of Use - body (chronic) (events/yr): 1 SA/BW - body (cm2/kg): 286

Frequency of Use - body (acute) (events/day): 1 SA/BW - Hands (cm2/kg): 15.6

Frequency of Use - Hands (chronic) (events/yr): 133 Exposure Duration (years) chronic: 74

Frequency of Use - Hands (acute) (events/day): 2 Exposure Duration (days) acute: 1

Amount Retained/Absorbed to Skin (g/cm2-event): 9.22e-06

Averaging Time (chronic) (days): 2.74e+04 Averaging Time (acute) (days) : 11/11/2013 Page 19 of 19

CEM Dermal Exposure Estimates ID Number: P-13-0178,7 Scenario: Bar Soap Population: Adult Exposure Duration (years) chronic: 74 Exposure Duration (days) acute: 1

Exposure Units Result AT (days) Chronic Cancer
LADD pot (mg/kg-day) 1.18e-05 2.74e+04
Acute
ADR pot

(mg/kg-day) 5.85e-04 1

LADD - Lifetime Average Daily Dose (mg/kg-day) ADR - Acute Dose Rate (mg/kg-day)

Note: 75 years = 2.738e+04 days pot - potential dose Note: The general Agency guidance for assessing short-term, infrequent events (for most chemicals, an exposure of less than 24 hours that occurs no more frequently than monthly) is to treat such events as independent, acute exposures rather than as chronic exposure. (Methods for Exposure-Response Analysis for Acute Inhalation Exposure to Chemicals (External Review Draft). EPA/600/R-98/051. April 1998)