TY  - RPRT
TI  - Have nitrate concentrations changed in water in the alluvial aquifer of the upper Black Squirrel Creek Basin since 1984?
AU  - Daniel L. Brendle
PY  - 1997
DO  - 10.3133/fs07297
UR  - https://pubs.usgs.gov/publication/fs07297
ID  - fs07297
ER  -