Appendix F EPA Modeling Results for Proposed Criteria Page 1

Clam Food Web/Fish - Focused Seaward Transects – 75th percentile Kd

Data Source Water Year/

Flow Season

MonthYearTransect Min Kd 25th

percentile

Kd

Mean

Kd

Median

Kd

75th

percentile

Kd

Max Kd Allowable

Dissolved

Se Conc

(ug/L)

Predicted

Allowable

Particulate Se

Conc (ug/g dw)

Predicted

Allowable Inv

Se Conc

(ug/g dw)

Predicted

Tissue Se

Conc

(ug/g dw) Name Value Units

Mean 75th Kd Focused Seaward 3966 0.256 1.017 7.7 8.5 Foc Sea Fish (Clam) Target 8.5 ug/g

Prey TTF 7.6 dimensionless

Fish TTF 1.1 dimensionless

C&C/Doblin wet/high Jun-98 Focused Seaward 712 946 1180 1180 1414 1647 0.719 1.017 7.7 8.5

C&C/Doblin wet/low Oct-98 Focused Seaward 2202 2286 3435 3111 4498 5212 0.226 1.017 7.7 8.5

C&C/Doblin wet/high Apr-99 Focused Seaward 2274 2414 2666 2555 2861 3168 0.355 1.017 7.7 8.5

C&C/Doblin normal/low Nov-99 Focused Seaward 3496 5019 5986 6142 7089 7725 0.143 1.017 7.7 8.5
Appendix F EPA Modeling Results for Proposed Criteria Page 2

Clam Food Web/Rail - Focused Seaward Transects – 75th percentile Kd

Data Source Water Year/

Flow Season

MonthYearTransect Min Kd 25th

percentile

Kd

Mean

Kd

Median

Kd

75th

percentile

Kd

Max Kd Allowable

Dissolved Se

Conc (ug/L)

Predicted

Allowable

Particulate Se

Conc (ug/g dw)

Predicted

Allowable Inv

Se Conc

(ug/g dw)

Predicted

Tissue Se

Conc

(ug/g dw) Name Value Units

Mean 75th Kd Focused Seaward 3966 0.730 2.894 15.6 12.5 Foc Sea Clapper Rail Target 12.5 ug/g

Prey TTF 5.4 dimensionless

Egg TTF 0.8 dimensionless

C&C/Doblin wet/high Jun-98 Focused Seaward 712 946 1180 1180 1414 1647 2.046 2.894 15.6 12.5

C&C/Doblin wet/low Oct-98 Focused Seaward 2202 2286 3435 3111 4498 5212 0.643 2.894 15.6 12.5

C&C/Doblin wet/high Apr-99 Focused Seaward 2274 2414 2666 2555 2861 3168 1.011 2.894 15.6 12.5

C&C/Doblin normal/low Nov-99 Focused Seaward 3496 5019 5986 6142 7089 7725 0.408 2.894 15.6 12.5
Appendix F EPA Modeling Results for Proposed Criteria Page 3

Clam Food Web/Duck - Focused Seaward Transects – 75th percentile Kd

Data Source Water Year/ 

Flow Season

MonthYearTransect Min Kd 25th

percentile

Kd

Mean

Kd

Median

Kd

75th

percentile

Kd

Max Kd Allowable

Dissolved

Se Conc

(ug/L)

Predicted

Allowable

Particulate Se

Conc (ug/g dw)

Predicted

Allowable Inv

Se Conc

(ug/g dw)

Predicted

Tissue Se

Conc

(ug/g dw) Name Value Un its

Mean 75th Kd Focused Seaward 3966 0.224 0.890 6.9 12.5 Foc Sea Duck Target 12.5 ug/g

Prey TTF 7.8 dimensionless

Egg TTF 1.8 dimensionless

C&C/Doblin wet/high Jun-98 Focused Seaward 712 946 1180 1180 1414 1647 0.630 0.890 6.9 12.5

C&C/Doblin wet/low Oct-98 Focused Seaward 2202 2286 3435 3111 4498 5212 0.198 0.890 6.9 12.5

C&C/Doblin wet/high Apr-99 Focused Seaward 2274 2414 2666 2555 2861 3168 0.311 0.890 6.9 12.5

C&C/Doblin normal/low Nov-99 Focused Seaward 3496 5019 5986 6142 7089 7725 0.126 0.890 6.9 12.5
Appendix F EPA Modeling Results for Proposed Criteria Page 4

Insect Food Web/Fish - Landward Transects – 75th percentile Kd

Data Source Water Year/ 

Flow Season

MonthYearTransect Min Kd 25th

percentile

Kd

Mean

Kd

Median

Kd

75th

percentile

Kd

Max Kd Allowable

Dissolved Se

Conc (ug/L)

Predicted

Allowable

Particulate Se

Conc (ug/g dw)

Predicted

Allowable Inv

Se Conc

(ug/g dw)

Predicted

Tissue Se

Conc

(ug/g dw) Name Value Units

Mean 75th Kd Landward 4788 0.576 2.760 7.7 8.5 Landwrd Fish (Insect) Target 8.5 ug/g

Prey TTF 2.8 dimensionless

1.1 dimensionless

L&S above normal/high Jan-03 Landward 554 1628 2268 2269 3212 3503 0.859 2.760 7.7 8.5

L&S above normal/high Apr-03 Landward 927 1898 2684 2773 3564 4351 0.774 2.760 7.7 8.5

L&S below normal/low Oct-03 Landward 1628 3712 5855 4720 8569 12650 0.322 2.760 7.7 8.5

L&S below normal/high Jan-04 Landward 1256 1748 2981 2642 3808 6398 0.725 2.760 7.7 8.5