NC0047384_Report_20141218

City of Greensboro
L J North Carolina
Water Resources Department
December 18, 2014 Certified Mail 7003 1680 0001 0765 9906 Return Receipt Requested
North Carolina Department of Environment and Natural Resources
Division of Water Resources — NPDES Programs
Attn: Jordan Lake Watershed Coordinator
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
RE: T. Z. Osborne NPDES Total Nitrogen Reduction Schedule Report for CY 2014
Submitted in Response to NPDES Permit NC0047384 Part I -A. (4)
To Whom It May Concern:
This correspondence shall serve as the City of Greensboro CY 2014 Total Nitrogen Reduction Schedule
Report for CY2014 in order to comply with Part 1-A.(4) of the T. Z. Osborne NPDES permit NC0047384.
The permit includes the following requirements for this report:
• 2014 — Begin 1 year study (12 consecutive months with 2 sampling events per month) on Jordan
Lake Haw River Arm
• By December 31, 2014, submit report to DWR on progress of the Jordan Lake Haw River Arm
study
Jordan Lake Haw River Arm study Progress
• The Haw River Arm Study began in October 2013 with 2 sampling events per month. The 12
consecutive sampling months were completed in September 2014. Note: The City of Greensboro
has decided to continue the Haw River Arm special study for an additional 12 months.
• Sampling Sites:
o Site 055C — Below Pittsboro at the upper end of the Haw River Arm
o Site 055E — Near the Jordan Lake Dam on Haw River arm
• All lake sampling events and laboratory analyses were conducted by Meritech, Inc., a State -
certified commercial laboratory
• The following parameters were included in the study:
Field Parameters
Dissolved Oxygen (in mg/1)
pH (in standard units)
Specific Conductance (in umho/cm)
Temperature (in °Celsius)
Other Parameters
Total Suspended Solids (TSS) — Standard Methods 2540 D (in mg/1)
Turbidity — EPA Method 180.1 (in NTU)
Ammonia -Nitrogen — EPA Method 350.1 (in mg/1)
Total Kjeldahl Nitrogen (TKN) — EPA Method 351.1 (in mg/1)
Nitrate/Nitrite Nitrogen — EPA Method 353.2 (in mg/1)
Total Phosphorus — EPA Method 200.7 (in mg/1)
RE ,
Chlorophyll a — EPA Method 445.0 (in µg/1)
IVEMENkib
MO-9 Z014
Water
Peralting
PO Box 3136 . Greensboro, NC 27402-3136 www.greensboro-nc.gov . 336-373-CITY (2489) TTY # 333-6930

Letter of 12-18-2014 Page 2 —T. Z. Osborne NPDES Total Nitrogen Reduction Schedule Report for CY2014
• Twenty-eight samples have been collected in the 14-month period.
• Results from Site 055C:
o 3 WQS exceedances for pH
o 2 WQS exceedances for turbidity
■ Results from Site 055E:
o There were no water quality standard exceedances for the 14 month period.
• A data summary of the study results from October 2014 through November 2014 has been
included as part of this report submittal.
If you have any questions or need additional information, please do not hesitate to contact me.
Sincerely,
/ .� J VVLQ '
Martie Groome,
Laboratory and Industrial Waste Section Supervisor
Phone: [phone]
Email: [e-mail]
cc: Steve Drew, Water Resources Department Director (via email)
Elijah Williams, Water Reclamation Manager (via email)
Lori W. Cooper, T. Z. Osborne ORC (via email)
Alicia Goots, Laboratory Coordinator (via email)
Julie Grzyb, NCDENR, WQ Permitting Section- NPDES (via email)
Mike Mickey, NCDENR, Winston Salem Regional Office (via email)

JORDAN LAKE HAW RIVER ARM SAMPLING/ANALYSES
BY STATE CERTIFIED COMMERCIAL LABORATORY
Greensboro
Jordan Lake Haw River Arm
-Site
CPF055C Sampling/Analyses by Meritech, Inc.
Special
Dissolved
Oxygen
Turbidity
NTU
EPA 180.1
5.8
Ammonia
Nitrate/
Total
Study
pH
Conductivity
Temp
TSS
mg/I
SM 2540D
Nitrogen
mg/I
TKN
Nitrite
Phosphorus
Chlorophyll a
ugll
mg/I
units
umho/cm
°C
mgll
mg/I
mg/I
Sample Date:
EPA 350.1
EPA 351.1
EPA 353.2
EPA 200.7
EPA 445.0
10/18/2013 7.77
7.31
183
20.40
9
<
0.02
1.04
0.44
0.057
33.5
10/31/2013 8.54
7.69
196
18.2
6
4.6
<
0.02
1.1
0.52
0.074
28.2
11/14/2013 9.18
9.06
255
29.5
16
10.1
<
0.02
1.1
0.62
0.068
25.5
11/27/2013 8.51
7.18
242
11.0
11
7
0.02
1.0
0.88
0.063
22.4
12/9/2013 9.03
7.33
181
9.9
8
9.6
0.04
0.84
0.81
0.067
16.7
12/30/2014 11.68
6.86
73
7.4
40
78
0.19
0.44
0.56
0.16
7.05
1/6/2014 11.46
7.28
115
5.5
6
21.5
0.10
0.68
0.80
0.077
7.12
1/20/2014 11.33
7.02
88
6.3
10
31
0.05
0.34
0.51
0.084
5.88
2/3/2014
12.28
10.26
7.11
7.06
7.16
163
3.5
6
12.8
0.14
0.62
1.11
0.02
2.61
2/25/2014
116
9.9
18
34.7
<
0.02
<
0.2
0.40
0.095
7.57
3/5/2014 10.35
141
117
133
7.5
7
15.4
<
0.02
<
0.2
0.68
0.063
9.65
3/19/2014 10.55
7.08
6.6
18
30.4
0.08
<
0.2
0.45
0.085
4.53
4/9/2014 9.13
6.77
15.6
42
58.9
0.11
0.7
0.27
0.15
3.43
4/23/2014 9.28
7.49
106
16.8
12
15.5
<
0.02
0.52
0.48
0.083
10.1
5/5/2014 8.71
7.73
147
21.3
6
7.4
<
0.02
<
0.2
0.66
0.069
13.9
5/20/2014 7.63
7.04
100
22.1
_ 26.1
30.2
11
7.3
0.06
0.36
0.51
0.11
16.4
6/2/2014 9.09
8.42
160
7
5.6
0.02
0.76
0.32
0.061
15.4
6/19/2014 11.37
9.15
240
14
3.6
<
0.02
2.11
0.34
0.091
36.5
7/9/2014 8.79
8.91
236
29.3
9
6.9
<
0.02
0.97
0.03
0.074
38.9
7/28/2014 9.18
9.06
255
29.5
9
7.2
<
0.02
1.21
0.03
0.087
32.4
8/11/2014
7.78
8.53
247
27.2
8
5.6
<
0.02
1.33
0.11
0.064
33.7
8/27/2014
6.51
7.51
216
27.3
6
5.8
<
0.02
0.75
0.15
0.072
22.2
9/8/2014
5.79
7.17
224
28.2
9
6.0
<
0.02
0.89
0.03
0.072
19.0
9/23/2014
6.62
7.17
245
24.6
14
12.1
0.09
1.09
0.54
0.086
23.3
10/13/2014
7.27
7.34 252
21.8
7
1.8
0.03
0.85
0.21
0.085
20.7
10/27/2014 7.31
7.19
267
18.7
5.8
<
2.5
0.04
0.63
0.52
0.062
9.75
11/12/2014
9.36
7.61
254
15.9
6
4.1
<
0.02
0.41
0.51
0.058
20.8
11/25/2014
9.51
7.34
249
11.8
' 4
5.8
<
0.02
0.79
0.55
0.063
24.4
AVG* (using PQLs)
9.08
N/A
186
17.9
11.6
14.9
0.05
0.76
0.47
0.08
18.3
MAX
12.28
9.15
267
30.2
42
78.0
0.19
2.11
1.11
0.16
38.9
MIN
5.79
6.77
73
3.5
4.0
1.80
<
0.02
<
0.20
0.03
0.02
2.61
Count
28
28
28
28
28
28
28
28
28
28
28
# exceeding WQS
0
3
N/A
N/A
N/A
2
N/A
N/A
N/A
N/A
0
% Violations
0.00
10.71
7.14
0.00
NC WQS
>4.0
6.0-9.0
50
40
rev.12/152014

JORDAN LAKE HAW RIVER ARM SAMPLING/ANALYSES
BY STATE CERTIFIED COMMERCIAL LABORATORY
Greensboro
Jordan Lake Haw River Arm
-Site CP F055E
Sampling/Analyses
by Meritech, Inc.
Special
Dissolved
Ammonia
Nitrogen
mg/I
EPA 350.1
0.02
Nitrate/
Total
Study
Oxygen
pH
Conductivity
Temp
TSS 1
mg/I
SM 2540D
6
1 Turbidity
TKN
Nitrite
Phosphorus
Chlorophyll a
ug/I
mgll
units
umho/cm
°C
NTU
mg/I
mg/I
mg/I
Sample Date:
EPA 180.1
EPA 351.1
EPA 353.2
EPA 200.7
EPA 445.0
10/18/2013
5.21
6.97
_
172
20.2
4.3
<
0.97
0.47
0.047
16.4
10/31/2013
7.9
7.13
186
17.7
6
5.1
<
0.02
0.84
0.52
0.042
13.7
11/14/2013
7.71
8.39
231 _
28.5 _
5
7.1
<
0.02
1.09
0.6
0.054
14.2
11/27/2013
7.89
7.07
205
11.6
10
5.7
0.04
0.89
0.66
0.057
14.5
12/9/2013
9.1
7.47
195
9.7
6
7.7
0.02
1.18
0.83
0.064
17
12/30/2014
9.1
9.01
116
9.1
9
20.2
0.17
0.43
0.66
0.086
4.8
1/6/2014
9.98
7.31
149
8.0
7
8.9
0.06
0.45
0.45
0.055
16.3
1/20/2014
2/3/2014
2/25/2014
_ 3/5/2014
3/19/2014
10.41
6.98
6.91
126
6.6
10
19
0.09
0.53
0.41
0.067
12
11.96
120
4.4
5
15.7
0.09
0.43
0.63
0.022
5.8
10.48
7.04
117
9.7
14
28.6
<
0.02
0.25
0.42
0.096
8.73
10.38
7.13
129
7.7
10
15.5
<
0.02
<
0.2
0.55
0.063
5.87
10.35 7.12 115
7.6
14
20.6
0.03
<
0.2
0.38
0.075
10.4
4/9/2014
9.79 6.83
130
15.4
26
26.8
<
0.02
0.57
0.29
0.115
5.73
4/23/2014
10.46 8.41
125
17.3
10
8.9
<
0.02
0.81
0.14
0.064
22.8
5/5/2014
8.36
7.39 131
20.8
<
2.5
5.9
<
0.02
<
0.2
0.41
0.052
7.73
5/20/2014
7.24
6.98 139
21.7
11
16.4
0.03
0.31
0.21
0.065
19
6/2/2014
9.02
8.39
135
26.5
<
2.5
5.17
0.03
0.69
0.08
0.054
13.9
6/19/2014
9.67
8.62
192
29.0
5
4.5
<
0.02
0.75
0.19
0.061
26.6
7/9/2014
7.33
7.62
207
28.2
4
4.4
<
0.02
0.81
0.04
0.049
23.8
7/28/2014
7.71
8.39
231
28.5_
7
4.3
<
0.02
1.09
0.04
0.068
25.9
8/11/2014
7.41
8.21
200
27.0
5
5.2
<
0.02
1.31
<
0.02
0.051
21.9
8/27/2014
7.29
8.11
191
27.8
7
5.1
<
0.02
0.62
0.02
0.055
21.7
9/8/2014
6.27
7.31
190
28.1_
7
5.9
<
0.02
1.14
<
0.02
0.056
16.7
9/23/2014
6.64
7.23
211
24.9
5
5.0
0.06
0.70
0.15
0.057
22.4
10/13/2014
7.58
7.41
211
22.3
<
2.5
4.5
<
0.02
0.68
0.20
0.062
17.1
10/27/2014
7.92
7.46
250
19.5
3.8
<
2.5
0.07
•
0.47
0.49
0.049
7.73
11/12/2014
9.12
7.61
233
15.5
<
2.2
3.3
0.02
0.28
0.43
0.039
6.76
11/25/2014 8.86
7.24
248
11.6
4
4.3
<
0.02
0.74
0.58
0.054
17.9
AVG* (using PQLs)
8.61
N/A
174
18.0
7.4
9.7
0.04
0.67
0.35
0.06
15.1
MAX 11.96
9.01
250
29.0
26
28.6
0.17
1.31
0.83
0.12
26.6
MIN
5.21
6.83
115
4.40
<
2.2
<
2.50
<
0.02
<
0.20
<
0.02
0.022
4.80
Count
28
28
28
28
28
28
28
28
28
28
26
# exceeding WQS
0
0
N/A
N/A
N/A
0
N/A
N/A
N/A
N/A
0
Violations
0.00
0.00
0.00
0.00
NC WQS
>4.0
6.0-9.0
50
40
rev.12/15/2014

JORDAN LAKE
CPF049
Haw River
CPFO5 0
CPFOSSC
HAW RIVER ARM
CPF 08 6CUPS—
CPF0 86C
CPR 87B i CPF08 6F
CPFO87B3
CPFO87D
PFDSSOA
0
(hi_.torical)
CPFO 8 SOA
(2000 - 2001 Study
CPFOS 84 A
CPFO5 5E
JORDAN LAKE DAM
-`" CPF081A1 CL1
CPr 0811 C
NEW HOPE ARIVI
I�
0 2000 - 2001 DWQ Stations