Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Crude spatial log-odds of high-nitrate (> 5 mg/L) well status (top panel) and adjusted spatial log-odds accounting for well depth, total animal units within 10 km, total AFOs within 2 km, and open AFOs within 5 km (bottom panel). The black lines indicate statistically significant areas of risk of being a high-nitrate well.
