Water Quality | Town of Manhattan | Manhattan Wastewater Reclamation Facility | Gallatin County | Comment Period Closes May 30, 2024
APPLICANT:
Town of Manhattan
FACILITY NAME:
Manhattan Wastewater Reclamation Facility
FACILITY LOCATION:
Southeast Section 34, Township 02 North,
Range 03 East
Latitude: 45.87636, Longitude: -111.33329
Gallatin County
RECEIVING WATER:
Class I Ground Water
PERMIT NUMBER:
MTX000278
A determination has been made by DEQ to issue a new Montana Ground Water Pollution Control System (MGWPCS) permit to the Town of Manhattan for the Manhattan Wastewater Reclamation Facility. The Town currently discharges treated wastewater to surface waters under their existing Montana Pollutant Discharge Elimination System (MPDES) permit (MT0021857). The project as proposed will seasonally redirect the surface water discharge to the subsurface via infiltration. The subsurface discharge proposal will be covered under a new Montana Ground Water Pollution Control System (MGWPCS) permit (MTX000278). The vadose, aquifer, and hyporheic zones will provide for natural attenuation of nutrients.
The Town will maintain their existing MPDES permit that currently authorizes discharge to the Gallatin River via the Dita Ditch. However, the proposed project may lessen the need for direct discharge of nutrients to surface waters during the critical nutrient growing season in Montana.
The proposed MGWPCS permit authorizes the discharge of treated wastewater into Class I ground water. All beneficial uses of the aquifer will be maintained. The location of the newly proposed outfall is as follows:
Northeast Section 03, Township 01 North, Range 03 East
Latitude: 45.87036, Longitude: -111.33132
Gallatin County
Associated Materials:
Comment Period Ends: May 30, 2024
Send Comments To:
DEQ Water Quality Division
Water Protection Bureau
PO Box 200901
Helena, MT 59620
Or electronically to: DEQWPBPublicComments@mt.gov
Tags: MEPA, Public Comment and Water