TY - RPRT TI - Sanitary quality of surface water during base-flow conditions in the Municipality of Caguas, Puerto Rico, 2014–15: A comparison with results from a similar 1997–99 study AU - Jesús Rodríguez-Martínez AU - Senén Guzmán-Ríos PY - 2017 DO - 10.3133/sir20175045 UR - https://pubs.usgs.gov/publication/sir20175045 ID - sir20175045 ER -