TY  - RPRT
TI  - Probability of nitrate contamination of recently recharged groundwaters in the conterminous United States
AU  - B. T. Nolan
AU  - K.J. Hitt
AU  - B. C. Ruddy
PY  - 2002
DO  - 10.1021/es0113854
UR  - https://pubs.usgs.gov/publication/70024706
ID  - 70024706
ER  -