Patoka Lake Regional Water & Sewer District (PLRWSD) was organized in 1975 as an independent political entity of the State of Indiana. PLRWSD either provides water or treats wastewater for 11 Southern Indiana counties, including the communities of Dubois, Celestine, Schnellville, and St. Anthony which affects over 31,000 households and businesses which amounts to over 100,000 people.