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Lacamas Creek Bacteria, Temperature and Nutrients Source Assessment Report

Publication number Date Published
24-03-005March 2024
VIEW NOW Lacamas Creek Bacteria, Temperature and Nutrients Source Assessment Report (Number of pages: 182) (Publication Size: 21271KB)

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Author(s) Trant-Sinclair, G., M. Gleason, and J. Gala
Description Washington State’s Department of Ecology (Ecology) selected the Lacamas Creek watershed in 2010 for a water quality improvement project because segments of Lacamas Creek and its tributaries did not meet water quality standards for temperature, dissolved oxygen, and fecal bacteria. In addition, nutrient concentrations in the watershed are historically very high. Ecology conducted water quality sampling in 2010 – 2011 and published a summary of watershed groundwater conditions in 2013. In 2021, Ecology elected to conduct the water quality study as a Source Assessment study. Ecology staff also conducted additional bacteria sampling in 2021. This report summarizes the water quality data collected in 2010 – 2011 and 2021, presents a technical analysis of potential sources of pollution in the watershed, and outlines recommendations for improving the watershed’s water quality.
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Keywords source assessment, nutrients, Lacamas, temperature, water quality, dissolved oxygen, bacteria
WATERSHED Water Resource Inventory Area 28 Salmon-Washougal
DATA Environmental Information Management (EIM) #LacamasSA

Environmental Information Management (EIM) #TSWA0003


Lacamas Creek Bacteria, Temperature, and Nutrients Source Assessment QAPP

Surface-Water/Groundwater Interactions and Near-Stream Groundwater Quality, Lacamas Creek, Clark County

Lacamas Creek Fecal Coliform, Temperature, Dissolved Oxygen, and pH Total Maximum Daily Load: Water Quality Study Design (Quality Assurance Project Plan)