Publication Summary

Title

Quality Assurance Project Plan: Henderson and Nisqually TMDL Study

Month-Year PublishedFebruary 2003
Online Availability
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Short Description

This Quality Assurance Project Plan describes the technical study that will monitor levels of fecal coliform bacteria as well as some tributaries not meeting standards for pH, dissolved oxygen, or temperature in the Henderson Inlet and Nisqually Reach basins and form the basis for a proposal to allocate contaminant loads to sources.

(Also see abstract below)
Publication Number03-03-100
Author(s)Sargeant, D., M. Roberts, and B. Carey
Print Availability
Request from the program.
Number of pages 103 pp. + app (116 total)
Keywords 303(d), assessment, basin, conservation, county, environmental health, health, Henderson Inlet, plan, quality, quality assurance project plan, study, Thurston, TMDL, Total Maximum Daily Load, water
Subject Waterbodies
Henderson Inlet,
Dobbs Creek,
Woodard Creek,
Woodland Creek,
Nisqually Reach,
Drayton Passage,
Nisqually River,
McAllister Creek,
Ohop Creek
map of Washington state showing locations of subject waterbodies
Related Publications TitleRelationship    
Nisqually River Basin Fecal Coliform Bacteria and Dissolved Oxygen Total Maximum Daily Load Studysimilar topic
Henderson Inlet Watershed Fecal Coliform Bacteria, Dissolved Oxygen, pH, and Temperature Total Maximum Daily Load Studysimilar topic
Henderson Inlet Watershed Fecal Coliform Bacteria, Dissolved Oxygen, and pH Total Maximum Daily Load: Water Quality Improvement Report Implementation Strategyguideline for implementation
Quality Assurance Project Plan: Water Quality Monitoring for Fecal Coliform Bacteria in Dobbs Creeksimilar topic
Abstract Long Description

Henderson Inlet, Nisqually Reach, and several streams in the Henderson and Nisqually basins are on the 1996 and 1998 303(d) list of impaired waterbodies due to violations of one or more water quality criteria. Both basins have tributaries that exceed the water quality standard for fecal coliform bacteria as well as some tributaries not meeting standards for pH, dissolved oxygen, or temperature.

EPA requires the states to set priorities for cleaning up 303(d) listed waters and to establish a Total Maximum Daily Load (TMDL) for each. A TMDL entails an analysis of how much of a pollutant load a waterbody can assimilate without violating water quality standards. This Quality Assurance (QA) Project Plan describes the technical study that will monitor levels of the above-mentioned contaminants in the Henderson Inlet and Nisqually Reach basins and form the basis for a proposal to allocate contaminant loads to sources. The study will be conducted by Ecology's Environmental Assessment Program with assistance from Thurston County Environmental Health and Thurston Conservation District.

Link to EIM data for User Study ID bcar0002


This page last updated December 8, 2008