1. Development and application of watershed regressions for pesticides (WARP) for estimating atrazine concentration distributions in streams Author/Creator: Larson, Steven J. Publication/Creation: Sacramento, Calif. : U.S. Dept. of the Interior, U.S. Geological Survey, 2004 Resource Type: Book Access & Availability: Loading
2. Development of health-based screening levels for use in state- or local-scale water-quality assessments Publication/Creation: Rapid City, S.D. : U.S. Dept. of the Interior, U.S. Geological Survey, 2003 Resource Type: Book Access & Availability: Loading