Study of Groundwater Nitrate in Beaverhead County
Introduction to Nitrates
The Nitrogen Cycle
Primary sources of nitrogen pollution in rural areas
Project Objectives
Courthouse Records
Septic Tank Permit Files
Subdivision Files
Creating an Electronic Data File
Preparing the Map
Finding Locations
Color Code
All Topo Program
Beginning data entry for map
Map Entry Data
Transferring Data
Map Printing
Piecing Map Together
Using the Map Data
Field Investigation
Analysis of “Hotspot” Areas
Methods
Results for each Location
Highway 91 North, Bond Rd. Nitrate level: 8.27
PPT Slide
7952 Highway 91 North Nitrate level: 9.4
Sweetwater Road Nitrate level: 6.72
Argenta Flats Nitrate level: 6.79
Geological Map of Area
17500 Highway 91 South Nitrate level: 12.8
Sunwest Subdivision, South of Clark Canyon-Nitrate level: 7.66
Summary
Obtaining Field Samples North and South Dillon Study Areas
Sampling Procedure
North Dillon Study
Map of the North Dillon Area
Objectives
Results
Comparison Between Blue Ribbon Environmental & HKM
Suggestions for Future Study
The ‘LAST’ Slide
Acknowledgments
Email: t_satterly@wmc.edu
Home Page: www.wmc.edu/envirosci
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