TY - RPRT TI - Modeling the long-term fate of agricultural nitrate in groundwater in the San Joaquin Valley, California AU - Francis H. Chapelle AU - Bruce G. Campbell AU - Mark A. Widdowson AU - Mathew K. Landon PY - 2013 DO - 10.5772/53652 UR - https://pubs.usgs.gov/publication/70044922 ID - 70044922 ER -