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Title

Quality Assurance Project Plan: Sumas-Blaine Surficial Aquifer Long-Term Ambient Groundwater Monitoring

 
Publication number Date Published
19-03-114November 2019
VIEW NOW: Quality Assurance Project Plan: Sumas-Blaine Surficial Aquifer Long-Term Ambient Groundwater Monitoring (Number of pages: 50) (Publication Size: 1303KB)




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Author(s) Daiber, E.
Description The Sumas-Blaine aquifer (SBA) is the main source of drinking water for 40,000 - 45,000 rural residents of northern Whatcom County. The aquifer is vulnerable to contamination due to its shallow depth, high winter rainfall, and overlying agricultural and residential land uses. Groundwater nitrate-N in the SBA has been studied extensively since the 1970s, with a focus on characterizing areas that exceed the maximum contaminant limit for nitrate+nitrite-N of 10 mg/L. The SBA has been identified as a nitrate priority area in Washington State.

To assess the potentially improving groundwater quality, continued monitoring is needed to confirm the trends observed. This Quality Assurance Project Plan describes the objectives of additional groundwater monitoring and the procedures to be followed to achieve those objectives.
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Keywords groundwater quality, Sumas-Blaine, groundwater monitoring, Whatcom County, aquifer vulnerability, nitrate, groundwater contamination
WEB PAGE Sumas-Blaine surficial aquifer long-term ambient groundwater monitoring
WATERSHED Water Resource Inventory Area 01 Nooksack
DATA Environmental Information Management (EIM) #mred0001

RELATED PUBLICATIONS Title:

POSTER: Changes in Nitrate-N Concentration in the Sumas-Blaine Aquifer between 1997 and 2018

Sumas-Blaine Aquifer Long-Term Groundwater Quality Monitoring Network, 2009 Annual Report

Quality Assurance Project Plan: Sumas-Blaine Surficial Aquifer Long-Term Ambient Groundwater Monitoring

Nitrate Trends in the Central Sumas-Blaine Surficial Aquifer