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| Title | Results of Sampling to Verify 303(d) Listings for Chemical Contaminants in Shellfish from Dyes Inlet and Port Washington Narrows | |||
| Month-Year Published | April 2002 | |||
| Online Availability |
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| Short Description |
Ostrich Bay, Oyster Bay, and Port Washington Narrows were placed on Washington State′s 1998 303(d) list of impaired waterbodies, based on two studies reporting exceedances of EPA human health criteria for various metals and organic contaminants in the edible tissues of crabs and clams. In formulating an approach for addressing these listings, the Washington State Department of Ecology concluded that data from those studies for antimony, bis(2-ethylhexyl)phthalate, and several polynuclear aromatic hydrocarbons may not describe current conditions and that sampling should be conducted to confirm the need for these 303(d) designations. Verification sampling was conducted during July, August, and September of 2001. (Also see abstract below) | |||
| Publication Number | 02-03-011 | |||
| Author(s) | Roose, M. and A. Johnson | |||
| Print Availability | ||||
| Number of pages | 43 pp. | |||
| Keywords | 303(d), chemical, contaminant, oyster, results, sampling, shellfish, water | |||
| Subject Waterbodies |
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| Related Publications | Title | Relationship | ||
| Quality Assurance Project Plan: Sampling to Verify 303(d) Listings for Chemical Contaminants in Shellfish Tissue from Dyes Inlet and Port Washington Narrows | similar topic | |||
| Abstract | Long Description |
Ostrich Bay, Oyster Bay, and Port Washington Narrows were placed on Washington State′s 1998 303(d) list of impaired waterbodies, based on two studies reporting exceedances of EPA human health criteria for various metals and organic contaminants in the edible tissues of crabs and clams. In formulating an approach for addressing these listings, the Washington State Department of Ecology concluded that data from those studies for antimony, bis(2-ethylhexyl)phthalate, and several polynuclear aromatic hydrocarbons may not describe current conditions and that sampling should be conducted to confirm the need for these 303(d) designations. Verification sampling was conducted during July, August, and September of 2001. Results of the 2001 sampling showed that crab from Ostrich Bay do not contain detectable levels of antimony, bis(2-ethylhexly)phthalate, or the polynuclear aromatic hydrocarbons of interest. Clam samples from Oyster Bay had detectable levels of several PAHs, but the concentrations were at or below the human health criteria. With four parameters exceeding the human health criteria, concentrations of PAHs in Port Washington Narrows clams were much higher than Oyster Bay. Based on these results, it is recommended that: 1. Ostrich Bay be de-listed for antimony, bis(2-ethylhexyl)phthalate, benzo(a)anthracene, chrysene, and benzo(b)fluoranthene in crab tissue. 2. Oyster Bay be de-listed for benzo(b)fluoranthene in clam tissue. 3. Port Washington Narrows be retained on the list for benzo(b)fluoranthene in clam tissue, and be added to the list for benzo(a)anthracene and chrysene in clam tissue. |
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This page last updated August 17, 2011
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