TY - RPRT TI - Nonparametric statistical methods for comparing two sites based on data with multiple nondetect limits AU - Steven P. Millard AU - Steven J. Deverel PY - 2010 DO - 10.1029/wr024i012p02087 UR - https://pubs.usgs.gov/publication/70199706 ID - 70199706 ER -