NCG190110_DMR_20201214

STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR)
Calendar Year 2020 RECEIVED
Permit No. NCG190000
Certificate of Coverage No. NCG190110
DEC q A 2020
CENI J;UkL FILES
DWR SECTION
This monitoring report summary is due to the DWQ Regional Office no later than 30 days from the
date
The facility receives the laboratory sampling results from the final sample of the calendar year.
Facility Name: Atlantic Marine Sales Inc
County: New Hanover
Phone Number: [phone] Total No. of SDOs Monitored 1
Outfall No. 001
Is this outfall currently in Tier 2 (monitored monthly)?
Yes _ No
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes _ No _x_
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency _
Received approval from DWQ to reduce monitoring frequency _
Outfall 001
Total
Rainfall,
inches
00530
00400
00556
01119
01104
01094
01114
TSS,
mg/L
pH,
S.U.
Oil &
Grease,
m /L
Copper,
mg/L
Aluminum,
mg/L
Zinc,
mg/L
Lead,
mg/L
Benchmark
Date Sample
Collected,
mo/dd/ r
06/14/2020
N/A
0.65
100
2.5
6.0 — 9.0
7.5
15
<5.0
0.005
0.041
0.75
0.083
0.095
0.051
0.220
<0.01
11/12/2020
0.71
<2.5
7.68
<5.0
0.037
0.035
0.088
<0.01
[Type text] [Type text] SWU-25ONCG10-092309