TY - RPRT TI - Drain tiles and groundwater resources: Understanding the relations AU - Erik A. Smith AU - Timothy Gillette AU - Kristen Blann AU - Mary Coburn AU - Bryce Hoppie AU - Suzanne Rhees PY - 2018 UR - https://pubs.usgs.gov/publication/70204196 ID - 70204196 ER -