The City of Etna is supplied with clean, fresh water year-round from Etna Creek. Water is diverted from the creek to a treatment and storage facility, and is then gravity-fed for residential and municipal uses. The Department of Public Works is charged with daily monitoring of water quality, as well as treatment and regular reporting to state agencies.

The City of Etna operates a lagoon-style, aerated wastewater treatment facility. The Public Works staff monitors the lagoon’s levels and reports regularly to state agencies.