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Title

Control of Toxic Chemicals in Puget Sound: Evaluation of Loading of Toxic Chemicals to Puget Sound by Direct Groundwater Discharge

 
Publication number Date Published
11-03-023April 2011
VIEW NOW Control of Toxic Chemicals in Puget Sound: Evaluation of Loading of Toxic Chemicals to Puget Sound by Direct Groundwater Discharge (Number of pages: 47) (Publication Size: 1MB)




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Author(s) Pitz, C.
Description This study presents estimates of the annual chemical mass delivered to Puget Sound by direct (submarine) groundwater discharge, for 34 toxic chemicals of concern. The report (1) describes the methods and assumptions used to develop the loading estimates and (2) discusses sources of uncertainty in the values. The loading estimates best represent an upper-bound (worst-case) condition; actual toxic loading to Puget Sound by direct groundwater discharge is likely significantly lower than the estimates presented.

The groundwater loading estimates will be synthesized with loading estimates for other toxic delivery pathways during Phase 3 of the Control of Toxic Chemicals in Puget Sound project.
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Keywords toxic chemicals, model, basin, loading, Puget Sound, groundwater, discharge
WEB PAGE Toxic chemicals in Puget Sound
WATERSHED Water Resource Inventory Area PS Puget Sound
RELATED PUBLICATIONS Title:

Appendix A: Shoreline Classification Analysis Results

Appendix B: Groundwater Discharge Analysis Results

Appendix C: COC Concentration and Mass Flux Estimates - Non-detect substitution Method 1 (0.5RL)

Appendix D: COC Concentration and Mass Flux Estimates - Non-detect substitution Method 2 (Lowest RL)

Appendix E: COC Concentration Decision - Ambient Areas

Quality Assurance Project Plan: Puget Sound Groundwater Toxics Loading Analysis, Direct Discharge Pathway