Flood Warning System Etna Borough is a flood prone community. Due to this act, the Borough has taken steps to inform our residents and property owners what steps are taken to warn residents that the POTENTIAL FOR FLOODING EXISTS.During a rain event, the Etna Police Department and the Emergency Management Committee monitors the levels of the creeks (Pine Creek and West Little Pine Creek) storm runoff areas (areas listed above) and the Allegheny River on a regular basis for high flow.  When and if predetermined benchmarks have been reached, the Volunteer Fire Department and...