Publications Home || Browse by topic || Browse by program || Ecology website

Publication Summary

Our Ecology website has changed, which can cause broken links.
To report these, please contact us with the publication and broken link.


Moses Lake Total Maximum Daily Load Groundwater Study

Publication number Date Published
03-03-005February 2003
VIEW NOW Moses Lake Total Maximum Daily Load Groundwater Study (Number of pages: 153) (Publication Size: 2MB)

Trouble viewing? Try these free options.
Author(s) Pitz, C.
Description In support of a TMDL analysis for Moses Lake, a study was conducted to examine the role of groundwater discharge in the lake’s nutrient budget. Samples where collected from a network of lake-bed piezometers, springs, and wells, and tested for phosphorus and nitrogen nutrients. Phosphorus concentrations were higher than the target water quality criteria for the lake (0.050 mg/L TP) at 75% of the stations tested. Data indicate that a combination of urban wastewater sources are the likely origin for the elevated phosphorus measured in the discharging groundwater. The results of this study are incorporated into a comprehensive analysis of lake loading published separately.

The related publication, Moses Lake TMDL Phosphorus Study, is not yet online or printed.
The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.

ADA Accessibility
The Department of Ecology is committed to providing people with disabilities access to information and services by meeting or exceeding the requirements of the Americans with Disabilities Act (ADA), Section 504 and 508 of the Rehabilitation Act, and Washington State Policy #188.
Visit Ecology’s website for more information.
Contact EAP Publications Coordinator at 564-669-3028 or
Keywords WRIA 41, samples, Flux, environmental, wells, 303(d), urban, study, order, loading, water quality, assessment, waste, Total Maximum Daily Load, phosphorus, lake, groundwater
WEB PAGE Groundwater assessment in Washington state
WATERSHED Water Resource Inventory Area 41 Lower Crab
DATA Environmental Information Management (EIM) #CHPI001


Moses Lake Phosphorus-Response Model and Recommendations to Reduce Phosphorus Loading

Quality Assurance Project Plan: Characterization of the Groundwater Discharge to Moses Lake, Washington