NCS000057_Monitoring Report_20211215

STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR) / SPPP Annual Update DATA REVIEW FORM
Calendar Year � C, "2 1
Individual NPDES Permit No.
Certificate of Coverage (COC) No.
or
This monitoring report summary of the calendar year should be kept on file on -site with the facility SPPP.
Facility Name: Venator Chemicals LLC
County: Cabarrus
Phone Number: (704 )455-4171
Total no. of SDOs monitored 2
Outfall No. 1 o3b
Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No 0
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 ❑■
Parameter, (units)
Total
Rainfall,
inches
Cu
Mg/L
Zn
Mg/L
TSS
Mg/L
COD
Mg/L
pH
STD
Benchmark
N/A
0.0073
0.067
100
120
6-9
Date Sample
Collected,
mm/dd/yy
5/12/2021
0.29
0.0114
0.0611
8.0
ND
7.7
11/22/2021
0.24
0.0413
0.0822
4.7
ND
7.3
SW U-264 - Generic Annual DMR
Last revised 6101)2018

Additional Outfall Attachment
Outfall No. 2
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 ❑■
Parameter, (units)
Total
Rainfall,
inches
Cu
MgIL
Zn
Mg/L
TSS
Mg/L
COD
Mg/L
pH
STD
Benchmark
N/A
0.0073
0.067
100
120
6-9
Date Sample
Collected,
mm/ddlyy
5/15/2021
0.29
0.0260
0.0823
17.0
ND
7.7
11/22/2021
0.24
0.0466
0.0812
10.0
ND
7.5
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."
Signs
Date
For questions, contact your local Regional Office:
DEMLR Reqional Office Contact Information:
ASHEVILLE REGIONAL OFFICE
2090 US Highway 70
Swannanoa, NC 28778
[phone]
RALEIGH REGIONAL OI
3800 Barrett Drive
Raleigh, NC 27609
[phone]
WINSTON-SALEM REGIONAL OF]
450 Hanes Mill Rd, Suite 300
Winston-Salem, NC 27105
[phone]
YETTEVILLE REGIONAL OFFICE
225 Green Street
Systel Building Suite 714
Fayetteville, NC 28301-5043
[phone]
WASHINGTON REGIONAL OFFICE
943 Washington Square Mall
Washington, NC 27889
[phone]
1617 Mail Service Center
Raleigh, NC 27699-1617
[phone]
MOORESVILLE REGIONAL OFFICI
610 East Center Avenue/Suite 361
Mooresville, NC 28115
[phone]
WILMINGTON REGIONAL OFFICE
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
SWU-264 - Generic Annual DMR
Last revised 6/01/2018