NCS000057_MONITORING REPORT_20201014

STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR) / SPPP Annual Update DATA REVIEW FORM
Calendar Year 2020
Individual NPDES Permit No.
Certificate of Coverage (COC) No.
or
RECEIVEDINCDENR/DWF
This monitoring report summary of the calendar year should be kept on file on -site with the facility SPPPwoaos
MOORESVILLE REGIONAL OFFICE
Facility Name: Venator Chemicals LLC.
County: Cabarrus
Phone Number: (704
Outfall No. 1
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 DEMLR to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities?
mcF
=
Ii
Yes ❑ No %J
a��
=�p
o
m
Yes ❑ No[�
r'
o
O0
Yes I —I 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
3/25/2020
1.16
0.019
0.103
13.0
27.3
7.29
8/31/2020
0.94
0.0317
0.0607
48.8
31.3
6.72
SWU-264 - Generic Annual DMR
Last revised 8/0&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 DEMLR to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No �1
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
3/25/2020
1.16
0.234
0.087
3.8
ND
7.59
8/31/2020
0.94
0.0272
0.0763
23.2
ND
7.21
SWU-264 - Generic Annual DMR
Last revised 8/06/2018

"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."
t-or questions, contact your local Regional Office:
Askcvill
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
[phone]
FAYETTEVILLE 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]
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 8/0rV2018