NCG200513_USM SW Summary May 2021

Stormwater Quantitative Monitoring - Analytical Results
(NPDES General Permit COC NCG200513)
United Scrap Metal, Inc.
9925 Brookford Street, Charlotte, NC 28273
Outfall 001
Outfall 002
Outfall 003
Outfall 004
Benchmark
x.xxx
x.xxx
x.xxx
Permit Sample Event Number or Monthly Sampling Event (MSE)
3
4
5
6
7
MSE
MSE
8
MSE
MSE
MSE
9
MSE
MSE
MSE
10
MSE
MSE
MSE
Period 1
MSE
MSE
MSE
MSE
MSE
MSE
Period 2
MSE
MSE
MSE
MSE
Period 1
MSE
MSE
MSE
3
4
5
6
7
MSE
MSE
8
MSE
MSE
MSE
9
MSE
MSE
MSE
10
MSE
MSE
MSE
Period 1
MSE
MSE
MSE
MSE
MSE
MSE
Period 2
MSE
MSE
MSE
MSE
Period 1
MSE
MSE
MSE
3
4
5
6
7
MSE
MSE
8
MSE
MSE
MSE
MSE
MSE
MSE
MSE
9
MSE
MSE
MSE
10
MSE
MSE
MSE
Period 1
MSE
MSE
MSE
MSE
MSE
MSE
Period 2
MSE
MSE
MSE
MSE
Period 1
MSE
MSE
MSE
Period 1
MSE
MSE
MSE
MSE
MSE
MSE
Period 2
MSE
MSE
MSE
MSE
Period 1
MSE
MSE
MSE
MSE = Monthly Sampling Event
Red text indicates benchmark exceedance triggering "Tier I" requirements.
Red text and yellow shading indicates two consecutive benchmark exceedances triggering "Tier II"
requirements.
Red shading indicates four or more benchmark exceedances triggering "Tier III" requirements,
which includes NCDEMLR notification.
Sampling Date
6/15/2016
11/29/2016
4/24/2017
12/6/2017
6/12/2018
7/16/2018
9/17/2018
10/11/2018
11/24/2018
12/14/2018
1/24/2019
6/18/2019
7/1/2019
8/1/2019
9/1/2019
10/16/2019
11/1/2019
12/13/2019
Jan. 2020
2/6/2020
Mar. 2020
4/20/2020
5/20/2020
6/1/2020
7/1/2020
8/1/2020
9/25/2020
Oct. 2020
11/12/2020
Dec. 2020
Jan. 2021
Feb. 2021
Mar. 2021
Apr. 2021
5/12/2021
6/15/2016
11/29/2016
4/24/2017
12/6/2017
6/12/2018
7/16/2018
9/17/2018
10/11/2018
11/24/2018
12/14/2018
1/24/2019
6/18/2019
7/1/2019
8/1/2019
9/1/2019
10/16/2019
11/1/2019
12/13/2019
Jan. 2020
2/6/2020
Mar. 2020
4/20/2020
5/20/2020
6/1/2020
7/1/2020
8/1/2020
9/25/2020
Oct. 2020
11/12/2020
Dec. 2020
Jan. 2021
Feb. 2021
Mar. 2021
Apr. 2021
5/12/2021
6/15/2016
11/29/2016
4/24/2017
12/6/2017
6/12/2018
7/16/2018
9/17/2018
10/11/2018
11/24/2018
12/14/2018
1/24/2019
2/19/2019
3/25/2019
April 2019
May 2019
6/18/2019
7/23/2019
8/1/2019
9/1/2019
10/16/2019
11/1/2019
12/13/2019
Jan. 2020
2/6/2020
Mar. 2020
4/20/2020
5/20/2020
6/1/2020
7/1/2020
8/1/2020
9/25/2020
Oct. 2020
11/12/2020
Dec. 2020
Jan. 2021
Feb. 2021
Mar. 2021
Apr. 2021
5/12/2021
2/6/2020
Mar. 2020
4/20/2020
5/20/2020
6/1/2020
7/1/2020
8/1/2020
9/25/2020
Oct. 2020
11/12/2020
Dec. 2020
Jan. 2021
Feb. 2021
Mar. 2021
Apr. 2021
5/12/2021
Total Suspended Solids (mg/L)
(mg/l)
< 6.2
< 2.5
6.6
4.8
20.3
5
<2.6
3.3
29.5
< 2.5
NO FLOW
7.6
NO FLOW
NO FLOW
17.7
NO FLOW
NO FLOW
24.6
< 3.2
< 2.5
6.8
5
11.5
3.3
6.3
10.2
28.2
< 2.5
NO FLOW
9
NO FLOW
NO FLOW
16.1
NO FLOW
NO FLOW
21.4
< 2.6
< 2.5
4.2
5.3
38
9.5
<2.7
4.9
29.4
< 2.5
NO FLOW
171
NO FLOW
NO FLOW
102
NO FLOW
NO FLOW
21.9
10.5
< 2.5
NO FLOW
140
NO FLOW
NO FLOW
49.2
NO FLOW
NO FLOW
19.5
100
Chemical Oxygen Demand (mg/L)
(mg/l)
36
< 25.0
< 25.0
< 25.0
< 25.0
ND
<25.0
< 25.0
486
< 25.0
NO FLOW
< 25.0
NO FLOW
NO FLOW
ND
NO FLOW
NO FLOW
< 25.0
< 25.0
< 25.0
< 25.0
< 25.0
< 25.0
ND
< 25.0
< 25.0
474
< 25.0
NO FLOW
< 25.0
NO FLOW
NO FLOW
ND
NO FLOW
NO FLOW
< 25.0
< 25.0
< 25.0
< 25.0
< 25.0
< 25.0
35.9
< 25.0
< 25.0
484
< 25.0
NO FLOW
< 25.0
NO FLOW
NO FLOW
55.1
NO FLOW
NO FLOW
< 25.0
ND
< 25.0
NO FLOW
29.7
NO FLOW
NO FLOW
50.5
NO FLOW
NO FLOW
29.5
120
Oil & Grease (mg/L)
(mg/l)
66
< 5.0
< 5.0
< 5.0
< 5.0
ND
<5.0
<4.8
ND
< 5.0
NO FLOW
< 5.0
NO FLOW
NO FLOW
ND
NO FLOW
NO FLOW
< 5.7
< 5.3
< 5.0
< 5.0
< 5.0
< 5.0
ND
< 5.0
< 4.8
ND
< 5.0
NO FLOW
< 5.0
NO FLOW
NO FLOW
ND
NO FLOW
NO FLOW
< 5.6
< 5.3
< 5.0
< 5.0
< 5.0
< 5.0
ND
< 5.0
< 4.8
ND
< 5.0
NO FLOW
< 5.0
NO FLOW
NO FLOW
ND
NO FLOW
NO FLOW
< 5.0
ND
< 5.0
NO FLOW
< 5.0
NO FLOW
NO FLOW
ND
NO FLOW
NO FLOW
< 5.7
15
Copper (mg/L)
(mg/l)
0.0131
< 0.0050
0.0098
0.0093
0.0319
0.581
0.0079
0.0071
0.0087
0.0061
0.035
No Sample
NO FLOW
NO FLOW
0.0158
NO FLOW
0.0114
NO FLOW
0.0359
NO FLOW
0.01
0.0098
NO FLOW
NO FLOW
0.0231
0.013
NO FLOW
< 0.0050
NO FLOW
NO FLOW
0.0141
NO FLOW
NO FLOW
0.0156
0.012
< 0.005
0.01
0.0116
0.0327
0.534
0.0396
0.0071
0.0053
0.007
0.013
0.034
No Sample
NO FLOW
NO FLOW
0.0133
NO FLOW
0.0185
NO FLOW
0.0331
NO FLOW
0.0263
0.0084
NO FLOW
NO FLOW
0.0205
0.0134
NO FLOW
< 0.0050
NO FLOW
NO FLOW
0.0139
NO FLOW
NO FLOW
0.0159
0.0113
< 0.005
0.014
0.0124
0.0323
0.418
0.0366
0.0343
0.0215
0.016
0.0136
0.0133
0.0131
No Flow
No Flow
0.0239
0.0348
NO FLOW
NO FLOW
0.011
NO FLOW
0.0183
NO FLOW
0.0423
NO FLOW
0.0626
0.074
NO FLOW
NO FLOW
0.0145
0.0146
NO FLOW
0.0278
NO FLOW
NO FLOW
0.184
NO FLOW
NO FLOW
0.0208
0.0321
NO FLOW
0.14
0.0135
NO FLOW
NO FLOW
0.0138
0.0142
NO FLOW
0.0276
NO FLOW
NO FLOW
0.0866
NO FLOW
NO FLOW
0.0268
0.01
Lead (mg/L)
(mg/l)
< 0.0050
< 0.0050
< 0.0050
< 0.0050
< 0.0050
< 0.0050
< 0.0050
< 0.0050
< 0.0050
< 0.0050
< 0.0050
< 0.0050
< 0.0050
NO FLOW
< 0.0050
NO FLOW
NO FLOW
ND
NO FLOW
NO FLOW
< 0.0050
< 0.0050
< 0.0050
< 0.0050
< 0.0050
< 0.0050
0.0176
< 0.0050
< 0.0050
< 0.0050
< 0.0050
< 0.0050
< 0.0050
< 0.0050
< 0.0050
NO FLOW
< 0.0050
NO FLOW
NO FLOW
ND
NO FLOW
NO FLOW
< 0.0050
< 0.0050
< 0.0050
< 0.0050
< 0.0050
< 0.0050
0.0132
0.019
0.0065
0.0055
< 0.0050
0.0082
< 0.0050
< 0.0050
< 0.0050
< 0.0050
0.0168
< 0.0050
NO FLOW
0.0057
NO FLOW
NO FLOW
0.0661
NO FLOW
NO FLOW
< 0.0050
< 0.0050
< 0.0050
NO FLOW
0.0052
NO FLOW
NO FLOW
0.0377
NO FLOW
NO FLOW
< 0.0050
0.075
Zinc (mg/L)
(mg/l)
0.88
<0.01
0.122
0.485
0.739
0.385
0.174
0.103
0.076
0.0889
0.457
0.516
No Sample
NO FLOW
NO FLOW
0.434
NO FLOW
0.0838
NO FLOW
0.121
NO FLOW
0.0771
0.104
NO FLOW
NO FLOW
0.25
0.0358
NO FLOW
0.0406
NO FLOW
NO FLOW
0.0674
NO FLOW
NO FLOW
0.233
0.76
<0.01
0.13
0.51
0.722
0.343
0.197
0.116
0.0482
0.0928
0.493
0.521
No Sample
NO FLOW
NO FLOW
0.366
NO FLOW
0.179
NO FLOW
0.116
NO FLOW
0.117
0.098
NO FLOW
NO FLOW
0.336
0.0428
NO FLOW
0.0415
NO FLOW
NO FLOW
0.0658
NO FLOW
NO FLOW
0.237
0.708
<0.01
0.128
0.543
0.647
0.227
0.172
0.466
0.0833
0.0836
0.0434
0.07
0.547
0.666
0.816
NO FLOW
NO FLOW
0.318
NO FLOW
0.169
NO FLOW
0.679
NO FLOW
0.375
0.345
NO FLOW
NO FLOW
0.485
0.0412
NO FLOW
0.121
NO FLOW
NO FLOW
0.895
NO FLOW
NO FLOW
0.0756
0.329
NO FLOW
1.34
1.57
NO FLOW
NO FLOW
0.466
0.0395
NO FLOW
0.123
NO FLOW
NO FLOW
1.09
NO FLOW
NO FLOW
0.0781
0.126