NCG030461_2021 DMR_20220107

STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR) / SPPP Annual Update DATA REVIEW FORM
Calendar Year 2,021
Individual NPDES Permit No. NCS❑❑❑❑❑❑ or
Certificate of Coverage (COC) No. NCG❑❑❑❑4 ❑6 ❑i
This monitoring report summary of the calendar year should be kept on file on -site with the facility SPPP.
Facility Name: Core & Main
County: Rowan
Phone Number: (704 ) 278-1000
Outfall No. 01
Total no. of SDOs monitored 2
Is this outfall currently in Tier 2 (monitored monthly)?
Was this outfall ever in Tier 2 (monitored monthly) during the past year?
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 ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities?
Yes ❑ No ❑■
Yes ❑ No ❑
Yes❑ No
Total
Rainfall,
inches
Parameter, (units)
Total
Suspended
Solids TSS
pH Standard
Units
Total Copper
mg/L
Total Lead
mg/L
Total Zinc
mg/L
Non -Polar
O&G/Total
Petroleum
Chemical
Oxygen
Demand COD
Total Toxic
Organics
Benchmark
N/A
1 100 mg/L
6.0-9.0
0.010 mg/L
0.075 mg/L
0.125 mg/L
15 mg/L
120 mg/L
1 mg/L
Date Sample
Collected,
mm/dd/yy
06/11/21
0.11
6.0
6.5
0.0184
<0.0044
0.126
<2.70
NA
NA
09/22/21
0.4
20
6.8
0.0168
<0.0044
0.116
4.55
39
NA
12/31 /21
NA
No Discharge
No Discharge
No Discharge
No Discharge
No Discharge
No Discharge
No Discharge
NA
SWU-264 - Generic Annual DMR
Last revised 610112018

Additional Outfall Attachment
Outfall No. 02
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 ❑
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 ❑✓
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No ❑■
Total
Rainfall,
inches
Parameter, (units)
Total
Suspended
Solids m /L
pH Standard
Units
Total Copper
mg/L
Total Lead
mg/L
Total Zinc
mg/L
Non -Polar
O&G/Total
Petroleum
Chemical
Oxygen
Demand COD
Total Toxic
Organics mg/L
Benchmark
N/A
100 mg/L
6.0-9.0
0.010 mg/L
0.075 mg/L
0.125 mg/I
15 mg/L
120 mg/L
1 mg/L
Date Sample
Collected,
mm/dd/yy
06/11/21
0.11
18
7.0
0.0184
<0.0044
0.152
<2.70
NA
NA
08/17/21
1
37
6.6
0.0217
<0.0044
0.157
5.81
41
NA
09/22/21
0.4
3.0
7.0
0.0147
<0.0044
0.133
<2.70
28
NA
12/31 /21
NA
No Discharge
No Discharge
No Discharge
No Discharge
No Discharge
No Discharge
No Discharge
NA
SWU-264 - Generic Annual DMR
Last revised 610112018

I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a
system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person
or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the
best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
Signature 4d4
Date 01.07.2022
For questions, contact your local Regional Office:
DEMLR Regional Office Contact Information:
ASHEVILLE REGIONAL OFFICE
2090 US Highway 70
Swannanoa, NC 28778
[phone]
RALEIGH REGIONAL OFFICE
3800 Barrett Drive
Raleigh, NC 27609
[phone]
WINSTON-SALEM REGIONAL OFFICE
450 Hanes Mill Rd, Suite 300
Winston-Salem, NC 27105
L [phone]
FAYETTEVILLE REGIONAL OFFICE
225 Green Street
Systel Building Suite 714
Fayetteville, NC 28301-5043
10) 433-3300
WASHINGTON REGIONAL OFFICE
943 Washington Square Mall
Washington, NC 27889
[phone]
CENTRAL OFFICE
1617 Mail Service Center
Raleigh, NC 27699-1617
[phone]
MOORESVILLE REGIONAL OFFICE
610 East Center Avenue/Suite 301
Mooresville, NC 28115
[phone]
WILMINGTON REGIONAL OFFICE
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
SWU-264 - Generic Annual DMR
Last revised 610112018