NC0084638_Renewal (Application)_20200227

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Direcror
Solvary USA, Inc.
Attn: Michael Shatynski, Project Manager
504 Carnegie Ctr
Princeton, NJ 08540
Subject: Permit Renewal
Application No. NCO084638
Rhodia Remediation Site
Gaston County
Dear Applicant:
NORTH CAROLINA
Environmental Quality
February 27, 2020
The Water Quality Permitting Section acknowledges the February 26, 2020 receipt of your permit renewal application and
supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW permitting
branch. Per G.S. 15OB-3 your current permit does not expire until permit decision on the application is made.
Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit. The
permit writer will contact you if additional information is required to complete your permit renewal. Please respond in a
timely manner to requests for additional information necessary to allow a complete review of the application and renewal
of the permit.
Information regarding the status of your renewal application can be found online using the Department of Environmental
Quality's Environmental Application Tracker at:
https://dgg. nc.gov/permits-regulations/permit-guidance/environmental-application-tracker
If you have any additional questions about the permit, please contact the primary reviewer of the application using the
links available within the Application Tracker.
SincerelAdfor
Wren Th
Administrative Assistant
Water Quality Permitting Section
ec: WQPS Laserfiche File w/application
North €'sroEna Department of Environmental Quality I Dixft?on of Water Resouroes
MooresiFJL- Regbita3¢9ffiose 160 fast C°nter Avavue, We 30.11 MlovresvMa, North CeroUna 28iiB
r� as
704-M-1699

n
NPDES PERMIT APPLICATION - SHORT FORM C - GW
For discharges associated with groundwater treatment facilities.
Mail the complete application to: I� ®��
NC DEQ / DWR / NPDES E �4
1617 Mail Service Center
Raleigh, NC 27699-1617 FEB 2.6 2020
KDEWWR/NPDES
NPDES Permit Number INCO084638
If you are completing this form in computer use the TAB key or the up — down arrows to move from one
field to the next. To check the boxes, click your mouse on top of the box. Otherwise, please print or type.
1. Contact Information:
Owner Name
Facility Name
Mailing Address
City
State / Zip Code
Telephone Number
Fax Number
e-mail Address
Solvay USA Inc.
504 Carnegie Center
Princeton
NJ/08540
[phone]
[phone]
[e-mail]
2. Location of facility producing discharge:
Check here if same as above ❑
Street Address or State Road
City
State / Zip Code
County
321 Telegraph Drive
Gastonia
NC/28506
Gaston
3. Operator Information:
Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the
Operator in Responsible Charge or ORQ
Name CH2M HILL North Carolina Inc.
Mailing Address 14120 Ballantyne Corporate Place, Suite 200
City Charlotte
State / Zip Code NC/28277
Telephone Number [phone]
Fax Number [phone]
4. Ownership Status:
Federal ❑
State ❑
Private
Public ❑
Page 1 of 3
C-GW 6/17

NPDES PERMIT APPLICATION - SHORT FORM C - GW
For discharges associated with groundwater treatment facilities.
5. Products recovered:
Gasoline ® Diesel fuel ❑ Solvents ® Other
6. Number of separate discharge points: 1
Outfall Identification number(s) 001
7. Frequency of discharge: Continuous ❑ Intermittent
If intermittent:
Days per week discharge occurs: 7 Duration: Variable
8. Treatment System Design flow 0.1994 MGD
9. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
Unnamed tributary to Crowders Creek
10. Please list all additives to the treatment system, including chemicals or nutrients, that have
the potential to be discharged.
none
11. Is this facility located on Indian country? (check one)
Yes ❑ No
12. Additional Information
All applicants (including renewals):
➢ A USGS topographical map (or copy of the relevant portion) which shows all outfalls
➢ A summary of the most recent analytical results (effluent data, if available) containing the
maximum values for each chemical detected
NEW Applicants only:
➢ Engineering Alternative Analysis
➢ Description of remediation treatment system components, capacities, and removal efficiency
for detected compounds.
➢ If the treatment system will discharge to a storm sewer, written approval from the
municipality responsible for the sewer.
➢ A list of any chemicals found in detectable amounts at the site, with the maximum observed
concentration reported for each chemical (the most recent sample must be collected less
than one year prior to the date of this application)
➢ For petroleum -contaminated sites - Analyses for Volatile Organic Compounds (VOC) should
be performed. Analyses for any fuel additives likely to be present at the site and for phenol
and lead should also be performed.
➢ For sites contaminated with solvents or other contaminants - EPA Method 624/625
analysis should be performed.
Page 2 of 3 C-GW 6/17

NPDES PERMIT APPLICATION - SHORT FORM C - GW
For discharges associated with groundwater treatment facilities.
13. Applicant Certification
I certify that I am familiar with the information contained in the application and that to the best of my
knowledge and belief such information is true, complete, and accurate.
Printed name of Person Signing Title
Signature of Applicant
z/zo/Z o
Date
North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false statement
representation, or certification in any application, record, report, plan, or other document files or required to be maintained
under Article 21 or regulations of the Environmental Management Commission implementing that Article, or who falsifies,
tampers with, or knowingly renders inaccurate any recording or monitoring device or method required to be operated or
maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, shall be
guilty of a misdemeanor punishable by a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both.
(18 U.S.C. Section 1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more than 5 years, or
both, for a similar offense.)
Page 3 of 3 C-GW 6117

n
� �
N W N N Y N W
W N N N W
N W N N Y N W
N N N Y N W
o
N W N N Y W
m o w\
3
N N N N N
N N N N N
o
N N N N N N
m \o \ o
N N N N N
\
N N N N
O O O O N O
O O O O O N O
O O O O p N O
0 0 0 0 p N O
0 0 0 0 N 0
O
ZZZZZZZAA
D D D➢ D D D
Y Y Yo Y m
o Y N w o
Y w o 0 0 0 0>-
Y
r
0 o
o
Z Z Z Z Z Z Z
D D D D D D D
n n
p p I^+ 1^-� F^i 1^� F^i
A A
�Vpl �Vpl Y N FA- F^-
n n
F^+ F^+ r F^� FA-�
�lpJl
A A O O O
NVpi Y N` W N
P FY
j n
ipJl
r n
D m o
o
z z z z Z Z Z
o o A Y Y A A
o o A A A n
o o A A Y A A
o o A A Y Y A
Y
w
D D D D D D D
N in �' �'
N in �-' �' �` �'
w �' �'
in in �'
D o
Z Z Z Z Z Z Z
D D D D D D D
O `^On A Y Y Y n
N Y
A A
O O �^+^+ Y n A
E N Y Y41
A
o O n Y n A A
N Y Y Y Y
A n
O O n A ^ A A
!n Y Y Y Y Y
Y
a N
F O
o0 V
\ S
m O
O
N �
N bo;
N N
m o n 'A-' FA-` FA-` F^-`
Y
N P
w L, in
m
D D D D D D D
W OAi Y N
`
m
o
m 3
Z Z Z Z Z Z Z
O O A A Y A A
O O A A A A A
A O A A A A A
Y Y
O 0^ V A A A
"
m
OFp T<
D D D D D D D
in Lo �' Y
in in
in in
in in
m
0
fD o
Z Z Z Z Z Z Z
O A A n O A A
A A A A A
A A 0 A W
W A J V Y
A W Y tN+
w ~~ O
N _
D D D D D D D
N Y Y Y Y
to N Y Y Y
in M A Y V w
W N Y
j
r On m
0
o
Z Z Z Z Z Z Z
O O A A A A A
O O A A A A A
Y Y Y
O O A A A A A
Y Y Y Y Y
O O A V A A A
Y Y Y
N
pFp IP S N
D D D D D D D
Y Y Y Y Y
N N Y
N N
N
N=
O
n O
o
Z Z Z Z Z Z Z
O O A��� A
O O A Y n A A
�` �'
o 0 n V A� A
�' �' �"''
0 0 A Y Y A A
m
i w
OFO
D D D D D D D
in in
w
in in
p o
on
m
z Z z Z Z z z
D D
0 0 0
im, In m YA YA YA
o p o 0
p� im �YA YA YA
W
0 0 0 0
N m N Y Y Y
0 o p o
m N
w
s
F o
0DDDDD
3
Z Z Z Z Z Z Z^^^^
D D D D D D D
^^^^O
O O O Y O O
N in in N N�
^ A Z Z Z
O p 0
N N N D D D
O O A Z Z Z
0 0
N N Ln D D D
O O O O Z Z Z
in D D D
m
pFq =
m
Z Z Z Z Z Z Z
D D D D D D D
n A A n
O O A n A
L L--- �' Y
A n A n
p p Z Z Z
L. o. D D D
n n n n
p 0 0 0 Z Z Z
D D D
n n n n
O 0 0 p Z Z Z
N N p D D D
0
ry
r o
o
N '
Z Z Z Z Z z Z
D D D D D D D
A A A A
p 0 0 0 A n A
N��� Y Y Y
A A A A
p p p p Z Z Z
N L, L, N D D D
A A A A
O 0 0 0 2 Z Z
Ln Ln N N D D D
A A A A
O O O O Z Z Z
N N in D D D
F m
pp H
? <_
m
A A
A A A
n n n n
z Z
n n n n
z z Z
A A n
A A Z Z Z
L.
F
C
Z Z Z Z Z Z Z
D D D D D D D
Y
N Y Y
Z
N N N p D D D
p p D D D
p p D D D
m
Z z z Z Z Z Z
D D D
In N A n A A
Y w w
�-+ F^N Z Z Z
ww eo D D D
W Y N Z Z Z
D D D
ip A F^+ " z Z Z
V w D D D
A O F
D D D D
m N
N
N
N N
3
n A n
n n n n
n n n n
Z Z z
A A A n
Z Z z
F
Z z z z z z z
D D D D D D D
Y O O o^^^
in in in w w w
O O p p z Z Z
6, Z,� D D D
o o O O
N in L, N D D D
o o o O
L,� L. N D D D
pa
�
m
V
Z z z z z z z
D D D D D D D
n n n n
o o 0 0^^^
N N N Ln in in w
n n n n
o 0 o p Z Z Z
Ln� N D D D
n n n n
o D 0 o z Z z
N� L, N D D D
n n n n
o 0 0 o z z z
N in D D D
F N
o�
6 a
r � �

Table 2
Summary of Effluent Monitoring Data (Outfall 001) 2015-2020
NPDES Permit No. NCO084638
Date
1,1-Dichloroethylene
(µg/L)
Toluene
(µg/L)
Ethylbenzene
(µg/L)
Trichloroethylene
(µg/L)
Chronic
Toxicity
06/02/15
<0.5
<0.5
<0.5
<0.5
PASS
09/10/15
<0.5
<0.5
<0.5
<0.5
PASS
12/01/15
<1.5
<0.5
<0.5
<0.5
PASS
03/01/16
<0.5
<0.5
<0.5
<0.5
PASS
06/14/16
<0.5
<0.5
<0.5
<0.5
PASS
09/14/16
<0.5
<0.5
<0.5
<0.5
PASS
02/09/17
<0.5
<1.0
<0.5.
<1.0
PASS
03/07/17
<0.5
<1.0
<0.5
<1.0
PASS
06/13/17
<0.5
<1.0
<0.5
<1.0
PASS
09/05/17
<0.5
<1.0
<0.5
<1.0
PASS
12/05/17
<0.5
<1.0
<0.5
<1.0
PASS
03/13/18
<0.5
<1.0
<0.5
<1.0
PASS
06/12/18
<0.3
<1.0
<0.3
<1.0
PASS
09/06/18
<0.3
<1.0
<0.3
<1.0
PASS
12/06/18
<0.3
<1.0
<0.3
<1.0
PASS

9
N
USGS 7.5-minute Quadrangle G14NW South Gastonia, NC Figure 1
Outfall / Facility Outfall Location
Latitude: 35.200765' 0 1,000 2,000 NPDES Permit No. NCO084638
Longitude:-81.206875' Approximate scale in feet
Stream Class: C A
Subbasin:03-08-37 HUC:03050101 Mort„
Receiving Stream UT to Crowders Creek 4A CH2MHILL