NC0051373_Other_20220524

PERQUIMANS COUNTY
BOARD OF COMMISSIONERS
P.O. BOX45
HERTFORD, NORTH CAROLINA 27944
TELEPHONE: [phone]
MARY P. HUNNICUTT
CLERK TO BOARD
W. FRANK 11EAT11, 111
COUNTY MANAGE
RobertTankard
Department of Environmental Quality
Division of Water Resources
943 Washington Square Mall
Washington, NC 27889
May 24, 2022
Re: NPDES Permit
Permit NC0051373/NC0068861
Perquimans County WTP #1, Bethel & WTP ##2, Winfall, PC-1
Mr. Tankard,
WALLACE E. NELSON
CHAIRMAN
FONDELI.A A. LEIGH
VICE CHAIR
JOSEPH W. HOWLER
T. KYLE JONES
ALAN LENNON
CHARLES WOODARD
W. HACKNEY NIGH, JR.
COUNTY AITORN EY
The County of Perquimans expressed its concerns in a letter dated April 6th, 2018, about meeting the
proposed 230 mg/I limit for chlorides as required in the referenced NPDES permits. The proposed
monitoring and limit for chlorides with a monthly average and daily maximum of 230 mg/I will
require that we eliminate the ion exchange treatment process at both water plants. We use a mixed
bed resin technology that utilizes a blend of cation and anion resins th at remove calcium and
magnesium (hardness), as well as reducing the Total Organic Carbon (TOC). The reduction in TOC
allows us to comply with the 80 ppbTTHM potable drinking water regulations. This proposed
elimination of our ion exchange process constitutes an enormous change in our ability to produce
the quality of drinking water our customers have been supplied forover40 years, and we are
specifically requesting that this chloride limit be removed from our permits. If all the ion exchange
plants in the state receive these same chloride limits, it is our opinion that the state has taken the
position that ion exchange plants in this state will be eliminated in the very near future.
Sincerely,
/I VI GI,4
Frank Heath, County Manager
CC: Nick Lolies
CC: Robbie Bullock
CC: Jamie Midgette
Perquimans County's Vision:
To he a community of opportunity in which to live, learn, work, prosper and play.