C A RY, N O RT H C A R O L I N A A N N U A L WAST E WAT E R R E P O R T 2 0 2 3 12
PERMIT
PARAMETER
FY
2023
PERMIT
LIMIT
UNITS
EFFLUENT FLOW 5.11 12.8 MGD
TOTAL PHOSPHORUS 0.16
2.0
Quarterly Avg.
mg/L
TOTAL SUSPENDED SOLIDS < 2.5
30.0
Monthly Avg.
mg/L
BIOCHEMICAL OX YGEN DEMAND < 2.0
5.0 Summer
Monthly Avg.
mg/L
TOTAL NITROGEN 24,079
180,210/
Year
lbs
FECAL COLIFORM < 1.0
200
Monthly Avg.
#/100 ml
DISSOLVED OX YGEN 7.3
≥ 5.0
Daily Avg.
mg/L
AMMONIA < 0.05
1.0 Summer
Monthly Avg.
mg/L
pH 7.1 > 6.0 and < 9.0 S.U.
S O U T H C A R Y
W R F
THE SOUTH CARY WRF,
CONSTRUCTED IN 1988,
HAS A BIOSOLIDS DRYER
THAT PRODUCES PELLETIZED
FERTILIZER CALLED
"ENVIRO GEMS."
Located on West Lake Road,
the facility serves residents and
businesses in southern Cary and
discharges exceptionally-treated
water into Middle Creek, a
tributary of the Neuse River.
