NC0047384_Report_20151222

r City of Greensboro
L 4 North Carolina
Water Resources Department
December 22, 2015 Certified Mali 7003 1680 0001 0765 9388 Return Receipt Requested
North Carolina Department of Environmental Quality
Division of Water Resources
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 CY2015
Submitted in Response to NPDES Permit NC0047384 Part I-A.(4)
To Whom It May Concern:
This correspondence will serve as the City of Greensboro Total Nitrogen Reduction Schedule Report for
CY2015 in order to comply with Part 1-A.(4) of the T. Z. Osborne NPDES permit NC0047384. The permit
includes the following requirements for the 2015 report:
• Compile, review and analyze data from Jordan Lake Haw River Arm study and develop draft
written report.
• Bid Package 1 of the T. Z. Osborne BNR Project
• By December 31, 2015 submit report to DWR on the results of both activities (including final
Jordan Lake study report)
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: In September 2014, the City of Greensboro decided to continue the Haw River Arm
special study for at least an additional 12 months (through September 2015).
■ In 2015, because of the State of North Carolina Solar Bee project in the Haw River Arm,
Greensboro decided to continue the study until further notice.
• Thus, the CY2015 Total Nitrogen Reduction Schedule Report will only contain an interim data
summary for October 2013 through September 2015, since the study is still on -going.
■ A final report will be submitted at the conclusion of the study.
■ 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 City of Greensboro has spent over $25,000 on the Haw River Arm study thus far.
• The following parameters were included in the study:
PO Box 3136 • Greensboro, NC 27402-3136 www.greensboro-nc.gpv 336-373-CITY (2489) • TTY # 333-6930

Letter of 12-22-2015 Page 2 —T. Z. Osborne NPDES Total Nitrogen Reduction Schedule Report for CY 2015
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/l)
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)
Chlorophyll a — EPA Method 445.0 (in pg/1)
Jordan Lake Haw River Arm Study Interim Data Summary Report
■ Forty-eight samples have been collected in the 24-month period.
■ Results from Site 055C:
o 6 WQS exceedances for pH (6/48 = 12.5% exceedances)
o 2 WQS exceedances for turbidity (2/48 = 4.2% exceedances)
o 2 WQS exceedances for chlorophyll a (2/48 = 4.2% exceedances)
■ Results from Site 055E:
o 1 WQS exceedance for pH (1/48 = 2.1% exceedances)
■ A data summary of the study results from the 24 month period of October 2013 through September
2015 has been included as part of this report submittal.
Package 1 of the T. Z. Osborne BNR Project
■ Package 1 of the T. Z. Osborne BNR Project was bid on July 10, 2014.
▪ Garney Construction was issued a Notice to Proceed on December 1, 2014.
If you have any questions or need additional information, please do not hesitate to contact me.
Sincerely,
U0
Martie Groome
Laboratory and Industrial Waste Section Supervisor
Phone: [phone] Email: [e-mail]
cc: Steve Drew, Water Resources Department Director (via email)
Mike Borchers, Water Resources Department Deputy Director (via email)
Elijah Williams, Water Reclamation Manager (via email)
Bradley Flynt 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 i Jordan Lake Haw River Arm -Site CPF055C Samlling/Analyses
by Meritech, Inc.
Special Dissolved
Ammonla
Nitrate/
Total
Study I Oxygen
H
Conductivi
Temp
TSS
Turbidity
Nitrogen
.II
TIN
Nitrite
hos home
Chlorophyll a
mgll
units
umholcm
°C
mgll
NTU
mg/I
mgll
mg11
mgll
u�lI
Sample Date: `
Field
Field
Field
Field
SM 2540D
EPA 180.1
EPA 350.1
EPA 351.1
EPA 353.2
EPA 200.7
EPA 445.0
10/18/20131
7.77
7.31
183
20.40
9
5.8
< 0.02
1.04
1
0.44
0.057
33.5
10/31/20131
8.54
7.69
196
18.2
6
4.8
< 0.02
1.1
0.52
0.074
28.2
1111412013L_
9.18
9.06
255
29.5
16
10.1
< 0.02
1.1
0.62
0.068 f
25.5
22.4
11/27/2013;
8.51
7.18
242
11.0
11
7
0.02
1.0
0.88
0.063 i
16.7
12/9/2013j
9.03
7.33
181
9.9
8
9.6
0.04
0,84
0.81
0.067
12/30/2014:
11.68
6.86
73
7.4
40
78
0.19
0.44
05
0.16
7.05
7.12
1I612014i
11.46
7.28
115
5.5 � 6
21.5 J
0.10
0.68
0.80
0.077
0.084
5.88
1/20/20141
11.33
7.02 i
88
. 6.3 10
31
0.05
0.34
0.51
2/3/2014
12.28
7.11
_
183
3.5 6
12.8
0.14
0.82
1.11
0.02
2.61
2/25/2014L
10.26
7.06
116
9.9 I 18
34.7
< 0.02 <
0.20
0.40
0.095
7.57
3/5/2014 10.35
7.16
L 141
7.5 I 7
15.4
< 0.02 <
0.20
0.88
0.063
9.65
3/19/20141 10.55
7.08
117 1 6: _18
30.4
0.08 <
0.20
0.45
0.085
4.53 _
4/9/2014 L 9.13
6.77
133 15.6 42
58.9
0.11
0.70
0.27
0.15
3.43
4/23/2014, 9.28
7.49
106 I 18.8 i 12
15.5
< 0.02
0.62
0.48
0.083 _ y
0.069
_ __ 10.1 _
13.9
5/5/2014 8.71
7.73
147 y 21.3 6
7.4
< 0.02 <
0.20
0.86
5/20/2014
7.63
7.04
-}-
100 �, 22.1 I 11
47.3
0.08
0.36 1
0.51
0.11
16.4
6/2/2014 9.09
8.42
160 26.1 7
5.6
0.02
0.76 I
0.32
0.061
15.4
38.5
38.9
6/19/2014t 11.37
9.15
240
30.2
14
L
3.6
< 0.02
2.11
0.34
0.091
7/9/2014
8.79
8.91'
236
29.3
9 ,j
6.9
< 0.02
0.97
0.03
0.074
7/28/2014
9.18
9.06
255
9
7.2
< 0.02
1.21
0.03
0.087
32.4
8/11/2014
_ . _I._
7.78
8.53
_-
247
-29.5
27.2
_
8
5.6
<. 0.02
1.33
0.11
0.064
33.7
8/27/2014
6.51
7.51
I 218
27.3
8
5.8
< 0.02
0.75
0,15
0.072
22.2
0.03
0.072
19.0
9/8/20141
5,79 1
7.17
I 224
28.2
9
6.0
< 0.02
0.89
9/23/2014
6.62 I
7.17
245 '
24.6 j
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
t 0.63
L 0.52
0.082
i 9.75
0.51
0.058
20.8
11/1212014
9.38
7.61 254
15.9
6
4.1
< 0.02
0.41
11/25/2014
9.51 '
7.34 249
11.8
4
5.8 __
0.02
0.79
0.55
0.063
24.4
12/3/2014
10.01
7.30 258
10.3
4 1
7.3
0.05
0.70
-I-
0.88
0.067
14.8
12/15/2014
10.21
7.25 221
8.2
3
7
0.09
4._ 0.47
0.85
0.055
9.4
7.39
1/5/2015
11.09
7.16
154
9.0
10
17.7
0.09 '
.0.24
0.71
0.139
1/26/2015
11.33
6.88
203
6.2
17
24.3
0.20
r 0.52
0.61
0.98
L 0.093 .
0.084
6.07
_
6.19
2/4/2015
11.10
7.00
183
5.7
7
14.4
0.06
, 0.30
2/25/2015
13.25
7.04
216
2.3
4
9.8
0.30
0.78
0.83
0.108
5.53
3/18/2015
10.72
7.02
195
12.0
12
18.2
0.09
1.42
1.58
0.085
13.9
3/30/2015
10.13
7.29
179 1
12.9
10
12.7
< 0.02
0.70
0.65
0.184
10.4
4/6/2015
10.59
7.66
175
17.0
i
8
7.3
< 0.02
' 1.02
0.39
0.093
33.7
4116//2015
7.53
7.00
164
18.8
8
11.3
0.08
i 0.19
0.44
0.082
8.11
~ 8.84
7.39
121
21.2
17
13.5
0.03
1 ; 1.22
I 0.35
0.198
21.1
5120/2015
9.41
8.53
218
27.3
6
7.5
< 0.02
• 1,02
0.36
0.134
18.3
6/3/2015
6.41
7.79
234
26.9
6
4.6
0.05
I 1.03
0.42
0.117
12.3
6/18/2015
9.97
9.13
210
31.7
7
3.8
< 0.02
T 0.92
0.03
0.067
14.0
717/2015
13.63
9.59
244
29.8
11
7.2
< 0.02
'-2.18
•
0.34
0.118
38.1
7/20/2015
9.93
9.26 195
30.8
8
5.1
< 0.02
2.04
<
0.02
0.096
33.7
8/312015
8.27
8.66
221
30.5
9
5.3
< 0.02
-,- 1.36
<
0.02
0.087
24.5
8/21/2015
8.98
7.73
244
29.0
6
8.2
< 0.02
1 1 1.31
0.06
0.124
77.3
9/11/2015
8.01
8.67
234
28.9
9
7.5
0.04
I 0.78
0.02
0.082
32A
9/21/2015
8.13
8.43
241
26.1
8
8.2
< 0.02
0.53
<
0.02
0.109
43.3
AVG* (using PQIs)
9.39
N/A
194
18.5
10.3
12.8
0.05
r 0.83
0.62
0.09
19.6
=
■
MAX
13.63
9.15
267
31.7
42
78.0
0.30
L 2.18
•
1.58
0.20
77.3
MIN
5.79
6.77
73
2.3
3.0
1.80
< 0.02
<
0.19
0.03
•
0.02
2.61
Count
48
48
48
48
48
48
48
48
48 '
48
48
# exceeding WQS
0
6
N/A
N/A
N/A
2
N/A
N/A
N/A
N/A
2
Violations
0
12.5
4.17
4.2
NC WQS
>4.0
6.0-9.0
50
40

JORDAN LAKE HAW RIVER ARM SAMPLING/ANALYSES
BY STATE CERTIFIED COMMERCIAL LABORATORY
Greensboro
Jordan Lake Haw River Arm -Site CPF055E Sampling/Analyses by Meritech, Inc.
Special
Dissolved r I 1__
Ammonia' ,
I
Nitrate/ Total
[_-�
Study
H 'Conductivity. Temp
TSS I
Turbidity
Nitrogen!
TKN
I
Nitrite {Phosphorus
Chloro h II a
_Oxygen
mgli 1 units umhofcm , •C
mgli
NTU
mgli I
mgli
mgli m !I
ugll
Sample Date:
i-
Field 1_ F1eld .�_ Field j Field
SM 2540D
EPA 180.1
EPA 350.1 ,EPA
351.1
EPA 363.2
EPA 200.7
EPA 445.0
10/18/2013
5.21 i 6.97 172 1 20.2
6
4.3
<
0.02
0.97
0.47 l
0.047
16.4
10/31/2013
7.9 I 7.13 i 188 f 17.7
8
5.1
<
0.02
0.84
0.52
0.042
I-
13.7
11/14/2013
7.71 I 8.39 I 231 i 28.5
5
7.1
<
0.02
1.09
0.60
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 i 7.47 1 195 I 9.7
6
7.7
0.02
1.18
0.83
0.064
17
12/30/2014
9.1 I 9.01 I 118 9.1
9
20.2
0.17
0.43
0.68
0.086
4.8
8.9
0.06
0.45
0.45
0.055
16.3
1/6/20141
9.98 I 7.31 T 149 I 8.0
7
0.41
0.63
0.067
0.022
12
r 5.8
1/20/2014 10.41 1 6.98 � 126 ' 6.6
10
19
0.09
0.53
_
2/3/2014 11.96 6.91 1120 4.4
.
5
15.7
0.09
0.43
_
2/25/2014 10.48 7.04 ! 117 I 9.7
14
28.6
<
0.02
' 0.25
j
0.42
0.096
L 8.73
0.55
_
r 0.063 1
.
_-
5.87
,_
3152014 10.38 7.13 I 129 ! 7.7
10
15.5
<
0.02
< 0.20
0.38
0.075
10.4
14
20.6
0.03
< 0.20
3/19/20141 10.35 • 7.12 -1-
115 7.6
.L
4/9/2014 9.79 6.83 130 I 15.4 '
26
26.8
<
0.02
0.57
0.29
'
0.115
5.73
0.81
0.14
0.064
22.6 _
4232014 10.46 8.41 125 ! 17.3
10
8.9
<
0.02
0.41
0.052
7.73
5/5/2014; 8.36 7.39 ' 131 1 20.8
<
2.5
5.9
<
0.02
< 0.2
5/20/20141 7.24 : 6.98 1 139 I 21.7
11
16.4
0.03
0.31
0.21
0.065
19
5.17
I
F
0.03
0.69
0.08
0.054
13.9
6/2/2014 }' 9.02 L 8.39 L 135 26.5
<
2.5
1
6/19/2014 9.67 I 8.62 ! 192 ! 29,0
5
4.5
<
0_02
0.75
0.19
0.061 1
26.6
7/9/2014_, 7.33 a 7.62 I 207 28.2
4
4.4
T.<
0,02
0.81
0.04
0.049
23.8
-i•
7/28/2014 7.71 L 8.39 T 231 28.5
7
4.3
<
0.02
1.09
0.04
0.068
25.9
8/11/2014 7.41 t 8.21 L 200 27.0
5
7 T
J"
5.2
<
0.02
' 1.31
<
0.02
0.051
21.9
5.1<
0.02
, 0.62
0.02
0.055
21.7
8/272014 7.29 J 6.11 I 191 -r
27.8
r
9/82014 6.27 j 7.31 : 190
28.1
7
_1
5.9 <
0.02
' 1.14
<
0.02
0.056
18.7
9/23/2014 6.64 I 7.23 '
211
24.9
5
2.5
5.0 _
0.06
0.70
0.15
0.057
22.4
4.5 1 <
0.02
0.68
0.20
0.082
17.1
10/132014 7.58 7 7.41
211
22.3
<
10272014 7.92
7.46
250
19.5
3.8
<
2.5 4
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
11.8
4
4.3 I <
0.02
0.74
0.58
0.054
17.9
0.75
0.062
19.7
12/3/2014' 9.17
_j
7.21 i 256 i
10.4
3
6.1 •
0.06
0.71
_
12/152014: 10.03
7.22 243
9.1
6
5.3
0.06
0.59
0.78
0.055
15.6
1/512015! 9.76
6.97 L_ 190
8.6
10
7.6
0.15
0.29
0.59
0.049
13.7
1/2612015!' 11.31
6.8 ! 187
6.3
33
9.4
0.04
0.22
0.49
0.054
15.7
2/412015 r 11.41
7.24 ' 192
6.1
7
9.8
0.11
0.48
'
0.48
0.068
1
12.0
225120151 12.77
7.24 183
3.1
4
10.6
0.19
0.70
0.63
0.114
13.2
1.03
0.074
15.3
3/162015: 10.81
7.18 i 169
11.1
10
18.4
0.10
1.26
3/302015; 10.44
7.22 167
12.6
6
7.7
< 0.02
0.91
0.50
0.07
23.9
4/6/2015. 10.89
7.48 T 206
15.1 j
_
6
7.5
< 0.02
1.06
0.44
0.076
33.9
4
11.5
0.11
1.20
0.31
0.069
5.8
4/1612015; 7.73
7.11 -I 160
18.7
5/412015 i 9.68
7.22 132
21.4
18
11.8
< 0.02
1.12
0.17
0.177
20.1
5/20/20151 9.82
8.44
138
26.1
3
4.4
< 0.02
1.06
0.22
0.088
14.6
8/3120151 7.91
8.58
169
28.0
2
1
4.1
< 0.02
0.71
0.10
0.069
19.8
6/18/2015 8.53
8.79
202
31.9
4
3.4
< 0.02
1.01
0.03
0.060 .
9.8
7/7/20151 9.71
8.91
211
28.7
7
5.0
< 0.02
1.08
<
0.02
0.087
25.1
720/2015! 8.11
9.13
195
30.4
<
2.5
3.9
< 0.02
1.86
<
0.02
0.076
19.9
8/3120151 8.18
8.71
190
30.8
7
4.8
< 0.02
0.86
<
0.02
0.063
17.3
821/20151 7.54
8.09
215
28.5
7
4.3
< 0.02
0.83
•
0.05
0.067
33.6
9/11/2015 7.27
8.13
212
28.2
7
4.3
0.02
0.62
<
0.02
0.020
23.9
9212015I 7.91
8.21
191
26.4
3
3.8
< 0.02
0.88
<
0.02
0.061
29.6
AVG" (using PQLsj
8.96
N/A
181
18.4
7.4
1 8.6
0.04
0.75
0.36
0,07
16.7
MAX
12.77
9.01
256
31.9
33
28.6
0.19
1.86
1.03
0.18
33.9
MIN
5.21
6.80
115
3.10
<
2.0
<1
2.50
< 0.02
< 0.20
<
0.02
0.020
4.80
Count
48
48
48
48
48
48
48
48
48
48
48
#exceedl4jWQS
0
1
N/A
N/A
N/A
0
NIA
N/A
N/A
N/A
0
% Violations
0
2.1
0
0
NC WQS
>4.0
6.0.9.0
. 50
1
40