NCS000064_DMR_20200420

Fed Ex Tracking number 770241584660
Return to Randall Turner
April 13, 2020
NCDEQ
Division of Water Quality
Surface Water Protection Section
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
ATTN: Central Files
Celanese
The chemistry inside innovation"
RECEIVE
F,
DENR-LAND QUALITY
STORiWOVATEN PENMiTTING
Celanese Corporation
2525 Blacksburg Road
Grover, NC 28073-9641
www.celanese.com
Reference: Semi -Annual Monitoring Results — CNA Holdings LLC- Shelby Plant -
Stormwater Permit No. NCS 000064
To Whom It May Concern:_
In accordance with the facility's Stormwater NPDES Permit, semi-annual monitoring must be conducted in
accordance with permit no. NCS000064. The following represent the semi-annual monitoring results from the
sampling period of January 1—June 30, 2020. Duplicate copies of the signed DMR report are attached.
The monitoring results have been compared to the benchmark values of Table 3, which are not permit limits but
are guidelines for us to use in evaluating the sources of any benchmark exceedance and for the evaluation of the
effectiveness of our BMPs.
Outfall
TSS : 100 mg/I
BODS: 30 mg/I
COD: 120 mg/I
pH: 6-9
North Outfall
8.8
BRL
BRL
8.0
South Outfall
2.8
BRL
BRL
6.8
East Outfall
14.4
BRL
BRL
8.2
CNA Holding LLC — Shelby Plant is committed to ensuring compliance with all County, State, and Federal
regulations. Should there be a need for further discussion pertaining to the information above, feel free to call me
at 704/480-5793 or via email at [e-mail]
Sincerely,
Randall Turner
ORC
Attachments: Stormwater Discharge Outfall (SDO) Monitoring Report (2 copies)

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