Publication Summary

Title

Quality Assurance Project Plan: Wenatchee River Temperature, Dissolved Oxygen, pH, and Fecal Coliform Total Maximum Daily Load, Year 2 Technical Study

Month-Year PublishedAugust 2003
Online Availability
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Short Description

This is the Quality Assurance Project Plan for the Wenatchee River Temperature, Dissolved Oxygen, pH, and Fecal Coliform TMDL Year 2 Technical Study.

(Also see abstract below)
Publication Number03-03-106
Author(s)Bilhimer, D., J. Carroll, S. O'Neal, and G. Pelletier
Print Availability
Request from the program.
Number of pages 73 pp.
Keywords assessment, Columbia River, creek, dissolved oxygen, environmental, fecal coliform, focus, inventory, lake, plan, quality assurance, quality assurance project plan, resource, river, study, technical, temperature, Total Maximum Daily Load, water, water resource, Water Resource Inventory Area, Wenatchee River
Subject Waterbodies
Brender Creek,
Chiwaukum Creek,
Chumstuck Creek,
Mission Creek,
Nason Creek,
Peshastin Creek
map of Washington state showing locations of subject waterbodies
Related Publications TitleRelationship    
Wenatchee River Basin Fecal Coliform Bacteria Total Maximum Daily Load Studysimilar topic
Flow Summary for Gaging Stations on the Wenatchee River and Selected Tributariessimilar topic
Abstract Long Description

Section 303(d) of the federal Clean Water Act requires Washington State periodically to prepare a list of all surface waters in the state for which beneficial uses of the water – such as for drinking, recreation, aquatic habitat, and industrial use – are impaired by pollutants. These are water quality limited estuaries, lakes, and streams that fall short of state surface water quality standards and are not expected to improve within the next two years. Waters placed on the 303(d) list require the preparation of Total Maximum Daily Loads (TMDLs), a key tool in the work to clean up polluted waters. TMDLs identify the maximum amount of a pollutant allowed to be released into a waterbody so as not to impair uses of the water, and allocate that amount among various sources.

The technical study to address water quality concerns in Water Resource Inventory Area 45 has been split into two years.

  • The first study year focused on the mainstem Wenatchee River from the outlet of Lake Wenatchee to the river's confluence with the Columbia River at the city of Wenatchee, and included Icicle Creek. A separate Quality Assurance (QA) Project Plan was developed for the first study year.

  • The second study year will focus on the other major tributaries to the Wenatchee River. This QA Project Plan applies only to year two.

    This QA Project Plan describes the technical study that will evaluate temperature, pH, dissolved oxygen, fecal coliform, and other ancillary parameters in tributaries to the Wenatchee River including Mission, Brender, Chiwaukum, Chumstick, Nason, and Peshastin creeks. This TMDL, in combination with the year-one study on the Wenatchee River and Icicle Creek, will set water quality targets to meet water quality standards and allocate pollutant loads to sources.

    The study will be conducted by the Washington State Department of Ecology, Environmental Assessment Program.

    Link to EIM data for User Study ID WENRTMDL


  • This page last updated March 10, 2008