Application of a sediment Toxicity Identification Evaluation in support of Total Maximum Daily Load development for the Calcasieu Estuary
Keywords:
exposure assessment, cause-and-effect, source assessmentAbstract
A Toxicity Identification Evaluation of sediments from various reaches of the Calcasieu Estuary in Louisiana was performed to improve the technical basis for Total Maximum Daily Loads under development for this water body. The Toxicity Identification Evaluation methodology involved manipulations of the physical/chemical properties of sediment pore water samples in order to sequentially remove or bind each of the major classes of contaminant compounds and confounding factors. Toxicity tests were performed in conjunction with these manipulations to directly correlate reduction in toxicity with the specifically targeted contaminant classes. Toxicity of sediment porewaters from seven locations was evaluated using the amphipod, Ampelisca abdita and the mysid, Americamysis bahia. Toxicity Identification Evaluation results demonstrated improved survival after filtration, indicating that suspended particulates and associated contaminants were a significant source of toxicity. Subsequent treatments with column extraction and ethylene diamine tetra amino acid reduced toxicity, indicating both organics and metal constituents of pore waters as contributors to toxicity. The analysis of the filters used in the Toxicity Identification Evaluation revealed that particulate copper in the porewater was above criteria values, indicating that adverse exposure potential existed from the particulate phases, and that shifts in partitioning equilibrium could mediate dissolved-phase exposures. The identification of specific contaminant classes as well as particulate effects as sources of acute toxicity from Toxicity Identification Evaluation results indicate that in place sediment contamination as well as pore water flux and resuspension are likely contributors to habitat impairment that should be considered in Total Maximum Daily Load development.
References
Ankley, G. T., Schubauer-Berigan, M. K., Dierkes, J. R., Lukasewycz, M. T., 1992. Sediment toxicity identification evaluation: Phase I (Characterization), Phase II (Identification) and Phase III (Confirmation) modifications of effluent procedures. EPA 08-91. Draft-technical report. U.S. Environmental Protection Agency/Environmental Research Laboratory-Duluth, MN.
ASTM (American Society for Testing and Materials), ed. 1988. “Standard guide for conducting life cycle toxicity tests with saltwater mysids. E1191–90”. In Annual Book of ASTM Standards, pp. 754–769. Philadelphia, PA: ASTM.
Carr, R. S., Nipper, M., Biedenbach, J., Hooten, R., 2001. Survey data report in support of the sediment ecological risk assessment at the Calcasieu Estuary, Louisiana: Sediment pore water toxicity tests and dissolved organic carbon analysis of pore water. Prepared for CDM Federal Programs Corporation, Dallas TX.
CDM, 2000. Response action contract for remedial enforcement oversight, and non-time critical removal activities at sites of release or threatened release of hazardous substances in EPA Region VIII. Report submitted to US EPA Region VI. Contract No. 68-W5-0022. CDM Federal Programs Corporation. October 26, 2000.
DiToro, D. M., Zarba, C. S., Hansen, J. D., Berry, W. J., Schwartz, R. C., Cowan, C. E., Pavlou, S. P., Allen, H. E., Thomas, N. A. and Paquin, P. R. 1991. Technical basis for establishing sediment quality criteria for non-ionic organic chemicals using equilibrium partitioning. Environ. Toxicol. Chem., 10: 1541–1586.
Hampson, B. L. 1977. Relationship between total ammonia and free ammonia in terrestrial and ocean waters. J. Cons. Int. Explor. Mer., 37: 117–122.
Ho, K., 2001. Memorandum to Philip Crocker (U.S. EPA, Region VI) from Kay Ho (U.S. EPA, NHERL-AED, dated 2/21/2001.
Ho, K. T., Burgess, R. M., Pelletier, M. C., Serbst, J. R., Ryba, S. A., Cantwell, M. G., Kuhn, A. and Raczelowski, P. 2002. An overview of toxicant identification in sediments and dredged materials. Mar. Poll. Bull., 44(4): 286–293.
Louisiana Department of Environmental Quality (LDEQ) and USEPA, 1997. Results of chemical analyses of sediment samples from the Calcasieu Estuary. Unpublished data from samples associated with sediment toxicity tests conducted for LDEQ by Toxicon (1997).
MacDonald Environmental Sciences Ltd., 2001. Hyalella azteca Sediment Toxicity Tests, Solid-phase Microtox® Toxicity tests, metals analyses of whole sediment and pore water, and physical characterization of sediments of the calcasieu estuary, Louisiana. Prepared for CDM Federal Programs Corporation, Dallas, TX. June.
NOAA, 1998. Sampling and analytical methods of the national status and trends program mussel watch project: 1993–1996 update. NOAA Technical Memorandum NOS/ORCA/CMBAD 130.
SAIC (Science Applications International Corporation), 2000. Quality Assurance/Quality Control Project Plan for Conduct of Sediment Pore Water Toxicity Identification Evaluations to Characterize Contaminants in the Calcasieu Estuary, Louisiana.
SAIC, 2001. Site Demonstration report on a toxicity identification evaluation study with sediments from Indian Head Naval surface warfare center, Indian head,MD. Report submitted to Naval Facilities Engineering Service Center, Port Hueneme, CA.
SAIC, 2002a. Site report for a sediment toxicity identification evaluation demonstration for the calcasieu estuary in support of the development of total maximum daily loads. Report submitted to USEPA Watershed Management Section (6-WQ-EW), Region VI. April 2002.
SAIC, 2002b. Sediment Toxicity Identification Evaluation Demonstration: Hunters Point Shipyard Parcel F. Submitted to Department of the Navy, NFESC. Contract No. N47408-00-C-7123. Final Report, April 2002.
SAIC, 2003. Guide for Planning and Conducting Sediment PoreWaterToxicity Identification Evaluations (TIE) to Determine Causes of AcuteToxicity at Navy Aquatic Sites. Prepared for Department of the Navy, Naval Facilities Engineering Service Center, Port Hueneme, CA. March 2003.
Toxicon Environmental Sciences, 1997. Toxicity of sediment samples from calcasieu estuary, Louisiana. Prepared for Fluor Daniel, Inc., Coppell, TX. Toxicon Project No. J9706007.
USEPA (United States Environmental Protection Agency), 1991a. Sediment Toxicity Identification Evaluation: Phase I (characterization), Phase II (identification) and Phase III (confirmation) Modifications of Effluent Procedures. EPA-600/6-91/007. Environmental Research Laboratory, Duluth, MN.
USEPA, 1991b. Methods for Aquatic Toxicity Identification Evaluations Phase I Toxicity Characterization Procedures, Second Edition. EPA/600/6-91/003.
USEPA, 1996. Marine Toxicity Identification Evaluation (TIE), Phase I Guidance Document. EPA/600/R-096/054. USEPA Office of Research and Development, Washington, DC.
USEPA, 2002. Total maximum daily loads for toxics for The calcasieu estuary, including sub-segments. May 2002. U.S. EPA Region 6. Dallas, TX. Prepared by SAIC. May 2002.
WERF (Water Environment Research Federation), 2002. Navigating the TMDL Process-Sediment Toxicity. WERF Project # 02-WSM-2. http://www.werf.org/research/research.cfm
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