Saluda treatment plant application
Middlesex County has applied to DEQ for a permit to build an expandable 39,900 gallons per day waste water treatment plant to serve Saluda. The treatment plant would discharge into an unnamed tributary of Urbanna Creek.
The treatment plant would be located on the north side of Route 33, about a half mile from the courthouse. The county has purchased about 30 acres for the facility.
A public hearing is set for January 21 at 6:30 p.m. at St. Clare Walker Middle School.
Know the details. Download sections of the county’s application below.
- Facility Diagram and Location Map (will take a few moments to download)
- Fact Sheet
- Conditions applicable to all VPDES permits
Land Application: a demonstrated alternative to discharging effluent into rivers and creeks.
The Kilmer’s Point and Cedar Point subdivisions have been using land applications via a spray irrigation system for over a decade. The following are DEQ’s requirements for that system, which is permitted to treat up to 32,500 gallons per day. Middlesex County is seeking a permit for 39,900 GPD.
- The design flow of the facility is 32,500 gallons per day and receives wastewater from both the Kilmer’s Point Subdivision and Cedar Point Subdivision.
- The design consists of two aerated lagoons for the primary & secondary treatment, and a third lagoon that serves as a polishing pond. The treated wastewater flows from the polishing pond to the chlorine contact tank where it is disinfected. From there, it is pumped to a 14 acre field via a diesel-powered pump and applied to the land with a “rolling spray nozzle”.
- The application rates cannot exceed the following: 0.25 inches per hour, 1 inch per day, or two inches per week.
- The wastewater itself is tested daily and monthly for 7 parameters.
- Since groundwater contamination is a potential problem with spray irrigation systems, there are four groundwater monitoring wells onsite which must be tested on a once per three month basis. There are 7 different parameters that are tested.
- The soils within the spray field are tested on a once per six month basis for 18 different parameters.
- The facility must have a Class IV operator (same requirement as the proposed Middlesex Courthouse Treatment Plant).
- There are buffer distances that must be kept from drinking water wells, occupied dwellings, improved roadways, surface water drainage patterns, property lines, and from agricultural drainage ditches that are built to keep groundwater tables down (like the ones you see through the middle of the fields in Mathews County).
- The vegetation that currently grows within the field must be maintained, which means cutting it seasonally.
- Wastewater cannot be applied during periods of wet weather or on frozen ground.