Lyon County manages wastewater treatment for three service areas: Dayton, Silver Springs GID, and the Willowcreek General Improvement District.

Rolling A Wastewater Treatment Facility

The Rolling A Wastewater Treatment Facility (WWTF) serves Dayton and the Carson Highlands area of Moundhouse. The Rolling A WWTF was originally put into operation in the last quarter of 2000 with a treatment capacity of 0.058 MGD. The Rolling A facility is currently under its fourth expansion which will expand the plant capacity to 1.6 MGD.

The Rolling A WWTF is a Sequencing Batch Reactor (SBR) facility with the following key components: influent pumping, headworks screening, biological treatment via sequencing batch reactor activated sludge, disinfection, effluent storage and disposal, and biosolids dewatering and disposal.

The Rolling A WWTF holds the permit # NS2000500 and utilizes reuse irrigation and rapid infiltration basins for final effluent disposal.

Silver Springs GID Wastewater Treatment Facility

The Silver Springs Wastewater Treatment Facility (WWTF) serves the Silver Springs area. The Silver Springs WWTF was put online in 2000 and Lyon County took over plant operations in 2007. The Silver Springs WWTF has a current treatment capacity of 0.499 MGD.

The Rolling A WWTF is a Parkson Biolac treatment facility with the following key components: influent pumping, headworks screening, biological treatment via the Biolac process, secondary clarification, filtration, disinfection, and sludge lagoons.

The Silver Springs GID WWTF holds permit # NS0099012 and utilizes reuse irrigation for effluent disposal.

Willowcreek Treatment Facility

The Willowcreek Wastewater Treatment Facility (WWTF) serves the Willowcreek General Improvement District area near Yerington. The Willowcreek WWTF was put into service prior to 1988 and has a treatment capacity of 0.049 MGD.

The Willowcreek WWTF is a three cell lagoon system with the following key components: influent pumping, two treatment cells with aeration ran in series, final polishing cell and effluent disposal.

The Willowcreek WWTF holds permit # NS0040039 and utilizes storage, evaporation, and reuse irrigation for effluent disposal.

Location

Please visit our Water and Sewer Business Office page for information on our location.