NCS000057_MONITORING REPORT_20201014 (2)

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.
0 or
RECEIVEDINCDENR/DWR
This monitoring report summary of the calendar year should be kept on file on -site with the facility SPPP.
WGROS
Facility Name:
Venator Chemicals LLC. MOORESVILLE REGIONAL OFFICE
County: Cabarrus
Phone Number: (704 ) 455-4171
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?
Yes ❑
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Yes ❑
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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
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 810612018

Additional Out -fall 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 L?�-
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 PS,
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 810612018

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."
ror questions, contact your local Regional Office:
2090 US Highway 70
Swannanoa, NC 28778
[phone]
RALEIGH REGIONAL OFFICE
3800 Barrett Drive
Raleigh, NC 27609
[phone]
450 Hanes Mill Rd, Suite 300
Winston-Salem, NC 27105
[phone]
Winston Salem
y� t
r � i
Ashvike. MO
fETTEVILLE REGIONAL OFFICE MOORESVILLE REGIONAL OFFICE
225 Green Street
610 East Center Avenue/Suite 301
Systel Building Suite 714
Mooresville, NC 28115
Fayetteville, NC 28301-5043
[phone]
[phone]
[SRIINGTON REGIONAL OFFICE
WILMINGTON REGIONAL OFFICE J
943 Washington Square Mall
127 Cardinal Drive Extension
Washington, NC 27889
Wilmington, NC 28405-2845
[phone]
[phone]
CENTRAL OFFICE
1617 Mail Service Center
Raleigh, NC 27699-1617
[phone]
SWU-264 - Generic Annual DMR
Last revised 8/0&2018