The cadmium and sulfate concentration limits are slightly increasing at the Elizabethtown Wastewater Treatment Plant.
Elizabethtown City Council had its second reading Monday to amend the sewer use ordinance. The amendment increases the daily maximum of cadmium from .004 milligrams per liter to .033 milligrams per liter and increases sulfate concentration from 550 milligrams per liter to 2,000 milligrams per liter.
“It is important to state that in considering any changes under the Sewer Use Ordinance to the limits at the city’s wastewater treatment facility, the city’s first concern is the integrity and safety of the treatment facility,” Elizabethtown City Administrator Ed Poppe wrote in an email Wednesday. “Our staff looks at the impacts on all the plant before recommending any change.
“Our next concern is with our current customers — the limits impact our existing industries because they are permitted and monitored,” he added. “Finally, we consider the limits as they impact new customers.”
Poppe said after determining the changes would not have an adverse impact on the facility, the staff went through the formal review process as required by state regulations.
The limits were reviewed by the state agency that permits the facility and a public notice was placed in The News-Enterprise.
“We received no public comments and the state found the changes to be within acceptable standards and approved the changes,” Poppe said, noting the city’s limits had been lower than most communities.
“We felt the change would allow us to be more competitive when recruiting new industry/jobs to the city,” he added.
The Elizabethtown Wastewater Treatment Plant is a Class IV wastewater facility with a design flow of 13 million gallons per day coming from commercial, residential and industrial sources, the city website says.
The treatment process includes automated bar screens, aerated oxidation ditches, clarification, chlorination and dechlorination and solids removal, according to the city website. The facility runs continuously and accepts trucked-in waste from septic tanks, grease traps and RVs.