Maps
Southern Willamette Valley Groundwater Management Area
Various maps produced for the project.
- Groundwater Management Area
- Neighborhood Map - Nitrate Values 2002-2015
- Nitrate Trends 2012-2014
- Nitrate Values - Original Study 2000-2002
- Nitrate Values & Hydrogeologic Units
- Land Use
- Population Density
- Residential Address Points
- Septic System Records
- Public Water Systems
- Wastewater Treatment Facilities
- Crop Types