Using a new tool from the U.S. Geological Survey (USGS), water resource managers in Pennsylvania can now easily estimate daily baseline streamflows in streams without gages. USGS announced the Baseline Streamflow Estimator (BaSE) on Feb. 22, and Pennsylvania is one of the first states in the nation to have such a tool. BaSE uses 50 years of daily mean streamflow data for ungaged sites and enables users to estimate streamflow in minutes, once a time-consuming task for ungaged sites. The streamflow statistics generated can inform decisions on water quality, ecosystem health, withdrawal, allocations, and wastewater permits. Read more.