TY  - RPRT
TI  - Direct assessment of groundwater vulnerability from single observations of multiple contaminants
AU  - Fred Worrall
AU  - Dana W. Kolpin
PY  - 2003
DO  - 10.1029/2002wr001212
UR  - https://pubs.usgs.gov/publication/70025282
ID  - 70025282
ER  -