NCG510413_Other Agency Documents_20190220

February 20, 2019
RECEIVED/DENR/DWR
Joe Corporon FEB 2 S 2019
Division of Water Resources Water Resources
Water Quality Permitting-NPDES
f'Qrmifting Section
1617 Mail Service Center
Raleigh, NC 27699-1617
RE: National Pollutant Discharge Elimination System Permit NCG510413
Bennett and Bailey
2872 South Stratford Rd
Winston-Salem, Forsyth County, NC
Incident#14498
Dear Mr. Corporon,
The purpose of this letter is to rescind the referenced National Pollutant Discharge
Elimination System Permit NCG510413.
Sincerely
a:1-ele.4, /rA
Mr. Alden Dull
2915 Camp Circle
Winston-Salem, NC 27106

CS CITY of A409
c_)tat e
NORTH CAROLINA
aRECE1 DIDEN PWR
W
February 20th, 2019 MAR 01 2019
Water Resources
Permitting Section
Mr. Monti Hassan
PERCS Unit
1617 Mail Service Center
Raleigh,NC 27699-1617
Dear Mr. Hassan:
I am writing in regards for approval on the City of Statesville Long Term Monitoring
Plan. I have made changes to the Fourth Creek plant per the new permit that takes effect
March 1st, 2019. I have included a copy of the updated LTMP.
If you have any questions,please contact me at 704-878-3438 or
Sincerely,
Brandy Johnson,Pretreatment Coordinator
Water Resources
PO Box 1111 • Statesville,NC 28687 • ci.statesville.nc.us

CITY OF STATESVII I,F,
LONG TERM MONITORING PLAN
A. Sampling Points (See Figure 1 and Figure 2)
1. Influent-Regular composite sample taken prior to mixing with side streams; as collected for
NPDES monitoring.
2. Effluent-Regular composite sample after dechlorination, as collected for NPDES monitoring
3. Aeration Basins - Collect a grab sample as collected for process control. Fourth Creek-a grab
sample from both aeration basin#1 and#2. Third Creek-a grab sample from the oxidation
ditch#1.
4. Sludge to Disposal - Sampling as per Sta-Lime and Land Application Permits. Fourth Creek
and Third Creek have a digester sampling point at the aerator located between the sludge
pump station and the sludge pumps. Percent Solids and Sour Tests are conducted from this
sample. The sampling point for Sta-lime is located at Fourth Creek's Sta-lime Sludge
Treatment Facilities. Third Creek hauls the sludge to Fourth Creek. Cake Sludge is sampled
at the Sludge Press for Synagro.
5. SIU(s) - Sampling locations as per Industrial User Permit(s) (IUPs).
6. Uncontrollable—Collect a grab sample at designated sampling site.
B. Pollutants of Concern (POCs)
Reason for Inclusion:
NPDES -4th Creek and 3rd Creek POTW NPDES Permit limit
Sludge -40 CFR 503 Sludge Land Application
EPA -EPA Required
SIU— Significant Industrial User
POC 4th Creek 3rd Creek 4th & 3rd Creek EPA,NC 4th Creek 3rd Creek
List NPDES NPDES Sludge Required SIU SIU
Required Required Required Pollutants Limited Limited
Pollutants Pollutants Pollutants Pollutants Pollutants
Flow Flow Flow Flow Flow
BOD5 BOD5 BOD5 BOD5 BOD5
TSS TSS TSS TSS TSS
NH3 as N NH3 NH3 NH3 NH3
As As As As
Cd Cd Cd Cd Cd
Cr Cr ' Cr Cr
Cu Cu Cu Cu Cu Cu Cu
CN CN CN
Pb Pb Pb Pb Pb
Hg Hg Hg Hg Hg
Mo Mo Mo Mo
Ni Ni Ni Ni Ni
Ag Ag Ag Ag
Se Se Se Se
Zn Zn Zn Zn Zn Zn
TP TP TP
TN TN TN
Bis(2ethylhexyl)phthalate Bis(2ethylhexyl)
phthalate
COD COD COD
Oil& Grease Oil&Grease Oil&Grease
% Solids % Solids
Sludge to disposal flow Sludge to disposal
flow
1

CITY OF STATESVII
LONG TERM MONITORING PLAN
C. Flow
Flow monitoring points are indicated on the attached facility diagram.
Influent and effluent flows will be monitored during sampling events. Flow or volume of sludge to
disposal (Pt. 4) can either be monitored or calculated. Flow used for Headworks is the effluent
flow.
D. SIU Monitoring
Significant Industrial User monitoring will be conducted per industrial user permit(IUP).
E. Sampling Frequency
Sampling Point Monitoring Frequency
1- Influent 1 sample per quarter
2 - Effluent 1 sample per quarter
3 —Aeration Twice per year
4 - Sludge to Disposal Per Sludge Permits and
503 regulations
5 - SIU Per SIU Permit
6 -Uncontrollable* Twice per year
* Collection of one grab sample at an uncontrollable location in the collection system, not containing SIU
wastewater.
F. Sampling Plan-Fourth Creek and Third Creek WWTP
Fourth Creek WWTP
Pollutant Influent Effluent Aeration Sludge SIU(s) Uncontrollable
(Pt. 1) (Pt.2) (Pt.3) (Pt.4) (Pt.5) (Pt. 6)
BOD5 X X X X
TSS X X X X
NH3 as N X X X X X
COD X X X X
Total Nitrogen X X
Total Phosphorus X X
As X X X X ■ X
Cd X X X X X X
Cr X X X X X
Cu X X X X X X
CN X X X X X
Pb X X X X X X
*Hg X X X X • X
Mo X X X X • X
Ni X X X i X X X
Se X X X X ■ X
Ag X X X X X
Zn X X X X X X
Oil&Grease X
Flow/Volume X X X
%Solids X
Total Hardness X
*Low Level Mercury(Method 1631) is being used for Effluent for both Fourth Creek and Third Creek
WWTP. Method 245.1 is being used for Influent for both Fourth Creek and Third Creek WWTP.
2

CITY OF STATESVII I,F,
LONG TERM MONITORING PLAN
• SIU's will be monitored once a year for Arsenic, Mercury, Molybdenum and Selenium by Fourth Creek
and Third Creek WWTP.
F. Sampling Plan- Fourth Creek and Third Creek WWTP
Third Creek WWTP
Pollutant Influent Effluent Aeration Sludge SIU(s) Uncontrollable
(Pt. 1) (Pt. 2) (Pt. 3) (Pt. 4) (Pt. 5) (Pt. 6)
BOD5 X X X X
TSS X X X X
NH3 as N X X X X X -
COD X X X X
Total Nitrogen X X
Total Phosphorus X X
As X X X X ■ X
Cd X X X X X X
Cr X X X X X
Cu X X X X X X
CN X X X X X __
Pb X X X X X X
*Hg X X X X • X
Mo X X X X IN X
Ni X X X X X X
Se X X X X • X
Ag X X X X X
Zn X X X X X X
Bis(2ethylhexyl)phthalate X
Oil&Grease X
Flow/Volume X X X X
%Solids X
* Low Level Mercury(Method 1631) is being used for Effluent for both Fourth Creek and Third
Creek WWTP. Method 245.1 is being used for Influent for both Fourth Creek and Third Creek
WWTP.
• SIU's will be monitored once a year(July) for Arsenic, Mercury, Molybdenum and
Selenium by Fourth Creek and Third Creek WWTP.
3

CITY OF STATESVIT A
LONG TERM MONITORING PLAN
G. Detection Level and Sample Method
Pollutant Of Concern Detection Level(mg/l) * Sample Method
BOD 2.0 24 hr Composite
TSS 2.5 24 hr Composite
NH3 as N 0.1 24 hr Composite
COD 20.0 24 hr Composite
Total Nitrogen 0.2 24 hr Composite
Total Phosphorus 0.16 24 hr Composite
As 0.0025 24 hr Composite
Cd 0.0004 24 hr Composite
Cr 0.002 24 hr Composite
Cu 0.002 24 hr Composite
CN 0.005 Grab
Pb 0.003 24 hr Composite
Hg-Effluent 0.000001 (Method 1631) Grab
Hg-All other locations 0.0002 (Method 245.1) 24 hr Composite ,
Mo 0.005 24 hr Composite
Ni 0.002 24 hr Composite
Se 0.005 24 hr Composite
Ag 0.0005 24 hr Composite
Zn 0.01 24 hr Composite
Oil & Grease 5.0 Grab
Bis(2ethylhexyl)phthalate 0.01 24 hr Composite
Total Hardness 1.0 24 hr Composite
• All aeration, uncontrollable and Sludge to Disposal samples will be grabs.
• Sampling,preservation, and analytical method must be from 40 CFR 136.
• Analyses for samples other than for Long Term Monitoring may be conducted at detection levels
differing from the above.
H. Facility Diagram - Fourth Creek and Third Creek WWTP
Attached are the facility diagrams for Fourth Creek WWTP and Third Creek WWTP. The following
locations are shown as numbered:
Point 1: Influent.
Point 2: Effluent
Point 3: Aeration
Point 4: Sludge (Flow is measured at sludge pumps; metals and% solids is analyzed on final product)
Point 5: Digester
Point 6: Sta-Lime (Third Creek hauls sludge cake to 4th Creek WWTP)
Locations not shown are:
Point 7: Significant Industrial User(s)
Point 8: Uncontrollable
4

CITY OF STATESVIT J E
LONG TERM MONITORING PLAN
■ SIU sampling location is as shown in the Industrial User Permit.
Uncontrollable sampling sites are listed below:
The Uncontrollable sampling sites include some residential areas.
1. Brookdale Drive—In front of Iredell Memorial Hospital, manhole number 4B 199.
2. Jefferson Street—Manhole 50 yards north, back of Armstrong Wood Products building.
3. Dragon Golden—Manhole 40 feet east,back of Dragon Golden building located at the
Newtowne Shopping Center.
4. Troutman—Designated sampling point for Troutman discharge located at the Third Creek
W,WTP.
5. Glenway Drive—Manhole 50 feet north, back of Toreros 8 Restaurant located at the Crossroads
Shopping Center.
5

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