NCS000591_Signed Staff Report_20170531

ROY COOPER
MICHAEL S. REGAN
TRACY DAVIS
Energy, Mineral
and Land Resources
ENVIRONMENTAL QUALITY
STAFF REVIEW AND EVALUATION
NPDES Stormwater Permit
Regional Office: MOORESVILLE
Owner/Company: Durafiber Technologies, Inc.
Facility Name: Durafiber Technologies -- Salisbury Plant
NPDES Permit Number: NCS000591
Expiration Date: March 31, 2014 (NCO004944 WW+SW)
Facility Location: 7401 Statesville Blvd., Salisbury, NC (Rowan County)
Type of Activity: Polyester resin & fiber manufacturing
SIC Code or Description: 2821 & 2824
Receiving Streams: North Second Creek [12-108-21b] &
Withrow Creek [12-108-21-3]
River Basin: Yadkin - Pee Dee River Basin, Sub -basin 03-07-06
Stream Classification: C
Proposed Permit Req'mts: See attached draft permit.
Response Requested by (Date): June 30, 2017
Central Office Staff Contact: Robert Patterson, [phone]
Central Office Review Summary:
1. Special Issues: Stormwater is currently part of a combined WW and SW permit
NC0004944. SW is being separated from WW during this renewal.
2. Changes at the facility since previous permit: Previously owned by Performance Fibers
Operations, Inc.
3. Receiving Waters: Withrow Creek is not listed as impaired in either the final 2014 or
draft 2016 303(d) list. North Second Creek is impaired for turbidity. This stream is
included in a TDML for turbidity approved in 2011. This site is also located in the High
Rock Lake watershed, which is impaired for nutrients, turbidity, and pH. A Nutrient
State of North Carolina I Environmental Quality I Energy. Mineral and lend Resources
1612 Mail Service Center 1512 North Salisbury Street I Raleigh. NC 27699-1512
919 707 9200 'T

NCSO00591
Page 2 of 3
Management Strategy for High Rock Lake is currently under development by DWR.
4. Threatened and Endangered Species: None identified on NC Natural Heritage Program
Map.
5. Analytical and./or qualitative monitoring during this past permit cycle: See Table 1. The
past permit term required semi-annual sampling of all 5 SDO's. Semi-annual data was
not able to be located for most years except 2013-2014.
Table 1: DMR Data Summary 2009-2014
6. Rationale for monitoring parameters: Propose maintaining all parameters based on
the industrial activities, chemicals, and the impairment and TMDL for turbidity,
nutrients, and pH. Although the analysis is the same, the parameter name "Total
Petroleum Hydrocarbons (TPH)" for stormwater discharges associated with vehicle
maintenance has been replaced by "Non -polar Dill & Grease by EPA Method 1664
[SGT -HEM]." This description causes less confusion for permittees and their
laboratories because the request for "TPH" can be confused with more expensive gas
chromatography tests for this group of compounds. Non -polar 0&G continues to be a
useful indicator for targeting petroleum-based oils and greases. Also, see attached staff
report from previous proposed permit.
7. Permit Facility, and Owner Contacts u dates:
® Confirmed contact information with permittee and updated BIMS if necessary.
® Obtained a -mail addresses for each contact and updated BIMS.
8. Annual Fees:
® Confirmed in BIMS that permittee does not owe fees.
Recommendations
Based on the documents reviewed, the application information submitted on February 23,
2016 is sufficient to issue an Individual NPDES Stormwater Permit.
Central Office recommends reissuance of this permit with mostly the same monitoring as
the previous cycle. The proposed draft permit reflects the most recent individual
stormwater permit template and boiler plate language, incorporating revisions that are
similar to the industrial general permits issued during 2015-16.
5 tate of %orb Carol= En%imamental Quality Energy-, %beial and Land Resources
16U %100 Service Center 512 Nm* Sal *wyStreet Raleigh, \1C ,'.7699-161'
919 707 91200 T
TSS
80D
TPH
TN
TP
pH
Benchmark
100
30
15
30
2
6-9
# of exceedances
1
0
0
1
6
6
# of samples
25
19
20
23
24
27
%exceedance
4%
0%
090
4%
25%
22%
Min
1
1
<5
0.11
<0.05
4.9
Max
576
14
0
39
3.1
8.6
6. Rationale for monitoring parameters: Propose maintaining all parameters based on
the industrial activities, chemicals, and the impairment and TMDL for turbidity,
nutrients, and pH. Although the analysis is the same, the parameter name "Total
Petroleum Hydrocarbons (TPH)" for stormwater discharges associated with vehicle
maintenance has been replaced by "Non -polar Dill & Grease by EPA Method 1664
[SGT -HEM]." This description causes less confusion for permittees and their
laboratories because the request for "TPH" can be confused with more expensive gas
chromatography tests for this group of compounds. Non -polar 0&G continues to be a
useful indicator for targeting petroleum-based oils and greases. Also, see attached staff
report from previous proposed permit.
7. Permit Facility, and Owner Contacts u dates:
® Confirmed contact information with permittee and updated BIMS if necessary.
® Obtained a -mail addresses for each contact and updated BIMS.
8. Annual Fees:
® Confirmed in BIMS that permittee does not owe fees.
Recommendations
Based on the documents reviewed, the application information submitted on February 23,
2016 is sufficient to issue an Individual NPDES Stormwater Permit.
Central Office recommends reissuance of this permit with mostly the same monitoring as
the previous cycle. The proposed draft permit reflects the most recent individual
stormwater permit template and boiler plate language, incorporating revisions that are
similar to the industrial general permits issued during 2015-16.
5 tate of %orb Carol= En%imamental Quality Energy-, %beial and Land Resources
16U %100 Service Center 512 Nm* Sal *wyStreet Raleigh, \1C ,'.7699-161'
919 707 91200 T

NCS000591
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Prepared by (Signature) - Date ?
Stormwater Permitting Supervisor • 0! —i Date✓f V ,�
Mike Randall (Acting Supervisor)
Concurrence by Regional Office
RO DEMLR Supervisor
Regional Office Staff Comments (attach additional pages as necessary)
S tate of \or& Carolina En%woumeatal Qaality Energy. Mneral and land Reso=es
1612 -\kd Senice Center 512 'North Salisbury Street Ftxleizh. \C 2 644 1612
914707 9200 T
Date
Date