NC0032115_Fact Sheet_20171218

e.
DEQ / DWR / NPDES
EXPEDITED FACT SHEET - NPDES PERMIT DEVELOPMENT
NPDES Permit NCO032115
Derek Denard_ Comnlinnee Rr F.xnediterl PPrmittina TTnit / Q1 Q-Rn7-A1n7 i 7n,.+7ni 17
Facility Information
Applicant/Facility Name
Town of Banner Elk
Banner Elk WWTP
Applicant Address
P.O. Box 2049, Banner Elk, NC 28604
Facility Address
Mill Pond Road, Banner Elk 28604
Permitted Flow (MGD)
0.600
Type of Waste
Municipal, < 1MGD
Facility Class
WW -3
County
Avery
Permit Status
Renewal
Regional Office
ARO
Stream Characteristics
Receiving Stream
Elk River (Mill Pond)
Stream Classification
C;Tr
Stream Segment
8-22-(3)
Drainage basin
Watauga
Summer 7Q10 (cfs)
4.2
Subbasin
[1 UC]
04-02-01
060101030201
Winter 7Q10 (cfs)
6.4
Use Support
Supporting (Cat 2)
30Q2 (cfs)
9
303(d) Listed
Average Flow (cfs)
26.2
State Grid
C11NW
IWC (%)
18.13
USGS Topo Quad
C11NW
FACILITY SUMMARY: This facility is an existing 0.600 MGD municipal wastewater treatment system
with the following components:
• influent bar screen
• comminutor
• grit chamber
• flow equalization
• two (2) aeration basins
• clarifier with return sludge
• aerobic digester
• UV disinfection
• flow measuring
• totalizing equipment
• stand-by power
• 0.8 meter Belt filter press.
RENEWAL SUMMARY: This permit reflects discharge at Outfall 001. DWR updated the following:
1. The facility map has been updated.
2. Regulatory citations have been added.
3. Parameter codes have been added to Section A. (1.).
4. Electronic reporting of discharge monitoring reports (eDMR) has been added in Section A. (3.).
Fact Sheet
Renewal 2017 -- NPDES Pennit NCO032115
Page 1

5. Total Mercury must be monitored once during the permit cycle. Mercury monitoring is included to
provide a database for future mercury management and TMDL evaluation. See Special Condition
A. (2).
DATA SUMMARY:
DMR Daily Parameter Values for Aug2012-Ju12017
Parameter
L100010 - Temperature, Water Deg. Centigrade
00400 - pH
�°°31616 - Coliform, Fecal MF, MFC Broth, 44.5 C
y -W050 - Flow, in conduit or thru treatment plant
::50060 - Chlorine, Total Residual
E C0310 - BOD, 5 -Day (20 Deg. C) - Concentration
C0530 - Solids, Total
C0600 - Nitrogen, Total - Concentration
.00665 - Phosphorus, Total (as P) - Concentration
Parameter
�msCO610 - Nitrogen, Ammonia Total (as N) - Concentration
IC0610 - Nitrogen, Ammonia Total (as N) - Concentration Total
Fact Sheet
Renewal 2017 -- NPDES Permit NCO0321151
Page 2
Data
Limits
_
T Location
Max Min Average Count Monthly Arg Weekly Arg Daily
Max UoM
Effluent
27
1
13.8
1.234
deg c
Effluent
7.74
1.29
800:
Not < 6.0 nor> 9.0
su
Effluent
6000
1
779
200
400
#/100ml
Effluent
0.946 0.024
0.212
1826
0.600
mgd
Effluent
28.0 ug/I
Effluent
36
2
5.3
778
30.0
45.0
mg/I
Influent
690
5
183.1
778
mg/1
Effluent
91
5
9.4
778
30.0
45.0
mg/I
Influent
2192
11
162.0
766
mg/I
E luent
35.2
5.01
14.7
9
mg/I
Effluent
4.01
0.77
2.4
9
mg/I
rData
Limits
T Location, Month o
Max Min Average Count Monthly Arg Weekly Arg
Daily Max
UoM
riEflluent
1
4.39
0.2
0.39
65
12.7
35.0
mg/l
i
2
11.5
0.2
1.03
59
12.7
35.0
mg/I
3.
11.7
0.2
1.55
66
12.7
35.0
mg/I
4
18
0.2
1.33
64
4.5
13.5
mg/I
5
10.8
0.2
1.52
66
4.5
13.5
mg/I
6
13.4
0.2
0.92
66
4.5
13.5
mg/I
7
7.16
0.2
0.84
66
4.5
13.5
mg/I
8
8.72
0.11
0.68
65
4.5
13.5
mg/I
9
15.1
0.19
0.96
64
4.5
13.5
mg/I
10
10.4
0.2
0.54
68
4.5
13.5
mg/I
11
3.52
0.2
0.45
64
12.7
35.0
mg/I
12
6.15
0.2
0.39
65
12.7
35.0
mg/I
18
0.11
0.88
778
mg/1
Fact Sheet
Renewal 2017 -- NPDES Permit NCO0321151
Page 2

COMPLIANCE HISTORY: Aug2012-Ju12017
PERMIT NCO032115
FACILITY Town of Banner Elk
- Banner Elk W WTP
COUNTY A%wy
REGION Ashedlle
MONITOR MONITOR OUTFALL LOCATION LOCATION PARAMETER
VIOLATION FREQUENCY UNIT OF
LIMIT CALCULATED %
OVER VIOLATION VIOLATION VIOLATION LAST
REPORT REPORT
TYPE
DATE
MEASURE
VALUE
TYPE ACTION COMMENT UPDATED BY
MONTH YEAR
ID
2 2016`001
Outfall
Effluent
Temperature,
02113/2016 5 Xweek
deg c
Frequency No Action, Snow on janet.cantwell
Water Deg.
Violation BPJ 219116 -
Centigrade
unable to
get to
plant.JAC.1
1/1116.
2 2013 001
Outfall
Effluent
Temperature,
0210212013 5 Xweek
deg c
Frequency No Action, JAC.7/23113 janet.cantwell
Water Deg.
Violation BPJ
Centigrade
3 2013001
Outfall
Effluent
Flow, In
03/30/2013 Continuous
mgd
Frequency Proceed to janet.cantwell
conduit or thru
Violation NOV
treatment plant
3 2013001
Outfall
Effluent
Flow, in
03/31/2013 Continuous
mgd
Frequency Pmceed to janet.cantwell
conduit or thin
Violation NOV
treatment plant
3 2013001
Outfall
Effluent
Flow, in
03129/2013 Continuous
mgd
Frequency Proceed to janet.cantwell
conduit or thru
Violation NOV
treatment plant
4 2013001
Outfall
Effluent
Temperature,
04/06/2013 5 Xweek
deg c
Frequency No Action, JAC.7/23113 janet.cantwell
Water Deg.
Violation BPJ
Centigrade
4 2014 001
Outfall
Effluent
Nitrogen.
04/0912014 3 Xweek
mgll
13.5000 18.0000
33 Daily Proceed to janet.cantwell
Ammonia Tatal
Maximum NOV
(as N)-
Exceeded
Concentration
5 2016 001
Outfall
Effluent
pH
05125/2016 3 Xweek
su
6.0000 1.2900
79 Daily No Action, JAC. janet.conlwell
Minimum BPJ
Not
Reached
5 2015 001
Outfall
Effluent
Nitrogen,
05/31/2015 3 Xweek
mg/I
4.5000 5.4200
21 Monthly Proceed to Will become janet.cantwell
Ammonia Total
A%erage Enforoeme NOV-NOI.
(as N)-
Exceeded nt Case JAC.10/15N
Concentration
5.
6 2015 001
Outfall
Effluent
pH
06/27/2015 3 Xweek
su
Frequency Proceed to janet.cantwell
Violation NOD
7 2015.001
Outfall
Effluent
Temperature,
07/18/2015 5 Xweek
deg c
Frequency No Action, janet.cantwell
Water Deg.
Violation BPJ
Centigrade
9 2015.001
Outfall
Effluent
Temperature,
09126/2015 5 Xweek
deg c
Frequency Proceed to janet.cantwell
Water Deg.
Violation NOV
Centigrade
9 2013001
Outfall
Effluent
Nitrogen,
09/14/2013 3 Xweek
mgll
Frequency Proceed to janet.cantwell
Ammonia Total
Violation NOV
(as N) -
Concentration
9 20151001
Outfall
Effluent
Nitrogen,
09/24/2015 3 Xweek
mg/I
13.5000 15.1000
12 Daily Proceed to janet.cantwell
Ammonia Total
Maximum NOV
(as N)-
Exceeded
Concentration
12 20141001
Outfall
Effluent
pH
12/0612014 3 Xweek
su
Frequency No Actlon, JAC.219115. janet.cantwell
Violation BPJ
Fact Sheet
Renewal 2017 -- NPDES Permit NCO0321151
Page 3