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| Title | Skokomish River Basin Fecal Coliform Bacteria Total Maximum Daily Load Study | |||
| Month-Year Published | April 2001 | |||
| Online Availability |
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| Short Description |
A Total Maximum Daily Load (TMDL) study for fecal coliform bacteria (FC) was conducted for the Skokomish River, because FC levels were not meeting fresh water quality standards due to nonpoint source pollution. The goal of the TMDL is to protect public health from pathogens in fresh water and help protect the marine waters of Hood Canal and shellfish harvesting in Annas Bay. The study was a cooperative effort with the Skokomish Tribe, whose Reservation includes part of the watershed. This study precedes the development of a water cleanup plan which will guide activities to better manage FC pollution. (Also see abstract below) | |||
| Publication Number | 01-03-014 | |||
| Author(s) | Seiders, K., G. Hoyle-Dodson, and P. Pickett | |||
| Print Availability | ||||
| Number of pages | 45 pp. + app (98 total) | |||
| Keywords | bacteria, basin, cleanup, creek, fecal coliform, highway, Hood Canal, order, plan, river, Skokomish, study, Total Maximum Daily Load, tribe, water, water cleanup plan | |||
| Subject Waterbodies |
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| Related Publications | Title | Relationship | ||
| Skokomish River Basin Fecal Coliform Total Maximum Daily Load (Water Cleanup Plan) -- Submittal Report | similar topic | |||
| Skokomish River Detailed Implementation Plan for Fecal Coliform Bacteria | related publication | |||
| Abstract | Long Description |
A Total Maximum Daily Load (TMDL) study for fecal coliform bacteria (FC) was conducted for the Skokomish River, because FC levels were not meeting fresh water quality standards due to nonpoint source pollution. The goal of the TMDL is to protect public health from pathogens in fresh water and help protect the marine waters of Hood Canal and shellfish harvesting in Annas Bay. The study was a cooperative effort with the Skokomish Tribe, whose Reservation includes part of the watershed. This study precedes the development of a water cleanup plan which will guide activities to better manage FC pollution. The Department of Ecology sampled 18 stream sites from January 1999 through January 2000, seven of which were sampled concurrently by the Skokomish Tribe. Study results confirmed violations of water quality standards for FC and found seven sites where dissolved oxygen did not meet standards. The mean daily FC load was calculated for each site using a 10-month averaging period. Load balances indicate the presence of significant FC sources (52% of the FC load) along the lower mainstem corridors of the Skokomish River and Purdy Creek between the bridges for Highways 106 and 101, and East Bourgault Road. Weaver Creek and Hunter Creek contributed the next largest loads (14% and 9%, respectively). Most streams in the lower Skokomish River basin must have FC levels well below Class AA fresh water criteria in order for marine waters and their beneficial uses to be protected. FC load allocations for mainstem and tributary sites are recommended, and these allocations are translated into FC concentrations that will allow water quality standards to be met. To access supporting documents, use the links below under "Related Publication" or go to the following web addresses: |
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