NC0004375_Permit (Modification)_20110613

NPDES DOCUMENT !MANNINO COVER SHEET
NC0004375
Clariant Corporation
NPDES Permit:
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Approval
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
June 13, 2011
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North Carolina Department of Environment and Natural Resources o GGL1es'
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
June 13, 2011
Mr. Bill Archer, Facility Manager
Clariant Corporation
P.O. Box 669246
Charlotte, North Carolina 28266
Subject: NPDES Permit Modification
Permit NC0004375
Clariant Corporation
Mecklenburg County
Dear Mr. Archer:
The Division of Water Quality is forwarding herewith the Final NPDES permit modification for the subject
facility. Please replace Effluent Sheet A(1) in your current permit with the modified Effluent Sheet. This permit
modification is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the
Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency dated
October 15, 2007 (or as subsequently amended).
This permit modification contains the following significant changes to Effluent Sheet A(1) from
your current permit:
• A 90% nutrient (TN, TP) allocation transfer from Clariant'permit to a future City of Charlotte
Regional WWTP. The actual reduction in Clariant's mass nutrient limitations (to 31.5
pounds/day TN and 4 pounds/day TP, based on a 12-month rolling average) will become
effective upon the Division's receipt of (a) an Engineer's Certificate of Construction Completion
for the Charlotte Regional WWTP, and (b) written notification from Clariant authorizing such
nutrient transfer.
There were no significant comments received on this permit modification during the 30 day public comment period, and
there have been no changes between the draft and final permit modification. If any parts, measurement frequencies, or
sampling requirements contained in this permit modification are unacceptable to you, you have the right to an
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An Equal Opportunity ;Affirmative Action Employer
Nne
oirthCarolina
!''aturaiij

adjudicatory hearing upon written request within thirty (30) days following receipt of this letter. This request must be in
the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the
office of Administrative Hearings, 6714 Mail Service Center, Raleigh, North Carolina 27699-6714. Unless such a
demand is made, this permit modification shall be final and binding.
Please take notice that this permit is not transferable except after notice to the Division of Water Quality. The Division
may require modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to
obtain other permits which may be required by the Division of Water Quality, the Division of Land Resources, the Coastal
Area Management Act, or any other federal or local governmental permit.
If you have any questions or comments concerning this permit modification, please contact me at the following
e-mail address: tom.belnick(ii)ncdenr.t;ov, or telephone number: 919-807-6390.
Sincerely,
om Belnick, Supervisor
Complex Permitting Unit
Cc (Hardcopy):
NPDES File
Central File
Mooresville Regional Office / Water Quality Section (Mike Parker)
Cc (Email):
EPA Region 4 (Pamala Myers)
Mecklenburg County (Erin Hall)
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] \ FAX: [phone] Customer Service: 1-877-623-6748
Internet www.ncwaterquality.org
An Equal Opportunity 1 Affirmative Action Employer
NorthCarolina
jVaturallrt

Permit NC0004375
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until the addition of future wastewater
sources or expiration, the Permittee is authorized to discharge treated C\VT and non -categorical industrial process
wastewater from outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Average
Daily Maximum
Measurement
Sample
Sample Location
Frequency
Tye e
Flow
3.9 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-day, 20°C4
300.1 pounds/day
888.5 pounds/day
Daily
Composite
Effluent
Total Suspended Solids
395.4 pounds/day
1,245.2 pounds/day
Daily
Composite
Effluent
Oil and Grease
102.9 pounds/day
344.2 pounds/day
Monthly
Grab
Effluent
Dissolved Oxygen
Daily
Grab
Effluent, Ul & Di
Fecal Coliform
(geometric mean)
Monthly
Grab
Effluent
pH2
Daily
Grab
Effluent, Ul & Di
NH3 as N4
574.5 pounds/day
861.8 pounds/day
Daily
Composite
Effluent
Temperature °C
Daily
Grab
Effluent, Ul & Di
Conductivity
Daily
Grab
Effluent, Ul & Di
COD
Monthly
Grab
Effluent
Total Nitrogen
(NO2+NO3+TKN)
318.5 pounds/days
31.5 pounds/days
Monthly
Composite
Effluent
Total Phosphorus
40.0 pounds/days
4.0 pounds/days
Monthly
Composite
Effluent
Total Mercury
12 ng/L
12 ng/L
Monthly
Grab
Effluent
Total Phenols
Monthly
Grab
Effluent
MBAS
Quarterly
Composite
Effluent
Total Iron
Quarterly
Composite
Effluent
Sulfates
Quarterly
Composite
Effluent
Chlorides
Quarterly
Composite
Effluent
Total Manganese
Quarterly .
Composite
Effluent
Chronic Toxicity3
Quarterly
Composite
Effluent
Total Chromium
Monthly
Composite
Effluent
Total Antimony
310 pglL
310 pglL
Monthly
Composite
Effluent
Total Arsenic
2,771 pg/L
2,771 pg/L
Monthly
Composite
Effluent
Total Copper
3.97 pounds/day
4.5 pounds/day
Monthly
Composite
Effluent
Total Zinc
2.2 pounds/day
2.6 pounds/day
Monthly
Composite
Effluent
Footnotes: see next page
1

•
Footnotes to Effluent Sheet A(1):
1. U= upstream at NC Highway 27. D = downstream at I-85. Upstream and downstream samples for dissolved
oxygen, temperature, conductivity and pH shall be collected three times per week during June, July, August and
September and once per week during the remaining months of the year.
2. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
3. Chronic Toxicity, refer to Section A. (3).
4. Staging requirements (applicable April 1-October 31) — Refer to Section A. (5).
5. The Total Nitrogen and Total Phosphorus mass limitations are based on a 12-month rolling average. Refer to
Section A. (4).
6. The reduction in Clariant's nutrient mass limitations reflect a 90% nutrient allocation transfer of 287 pounds/day
Total Nitrogen and 36 pounds/day Total Phosphorus to the City of Charlotte's proposed Regional WWTP. The
allocation transfer and subsequent reduction in Clariant's nutrient mass limitations will become effective upon the
Division's receipt of both (a) an Engineer's Certificate of Construction Completion for the Charlotte Regional
\VWTP, and (b) written notification from Clariant authorizing such nutrient transfer. Clariant's reduced mass
nutrient limitations are based on a 12-month rolling average (refer to Section A.(4)).
There shall be no discharge of floating solids or visible foam in other than trace amounts.
2

Department of Environment and Natural Resources
Division of Water Quality
Fact Sheet for NPDES Permit Modification
Facility Information: NC0004375 (Clariant Corporation)
Applicant/Facility Name:
Clariant Corporation — Mt. Holly
Applicant Address:
P.O. Box 669246, Charlotte, NC 28266
Facility Address:
11701 Mount Holly Rd., Charlotte, NC28214
Permitted Flow:
3.9 MGD (Grade IV — Biological)
Type of Waste:
Industrial, Stormwater, and Sanitary Wastewater
Facility/Permit Status:
Permit Modification
County:
Mecklenburg County
Miscellaneous
Receiving Stream:
Catawba River
Stream Classification:
WS-IV-CA
303(d) Listed?:
No
Subbasin:
03-08-34
Drainage Area (mi2):
40.8 mi2
Summer 7Q10 (cfs):
329 cfs
Winter 7Q10 (cfs):
NA
Average Flow (cfs):
3,016 cfs
IWC (%):
1.8 %
Primary SIC Code:
2865
Regional Office:
Mooresville
USGS Topo Quad:
Mountain Island Lake & Mount Holly
Permit Writer:
Tom Belnick
Date:
April 12, 2011
Permit Modification
This permit modification reflects a proposed 90% transfer of nutrient allocation (i.e., 287 lbs/day TN, 36 lbs/day TP)
from permittee (Clariant) to a future regional WWTP to be owned/operated by the City of Charlotte. The proposed
regional WWTP will be located on property adjacent to the Clariant facility as part of a future ReVenture "green"
development. Clariant currently discharges to the Catawba River (Lake Wylie) and nutrient loading is governed by a
1996 Lake Wylie TMDL. This proposed permit modification will not add any additional nutrient loading to the lake.
Lake Wylie is not listed as impaired for chlorophyll -a on the 2010 303(d) list.
In order for this permit modification to be activated, the proposed City of Charlotte Regional WWTP still needs to
proceed through the North Carolina SEPA process with a successful outcome, then receive an NPDES permit which
includes the reserve nutrient allocation. The allocation transfer will become effective upon the Division's receipt of
both (a) an Engineer's Certificate of Construction Completion for the regional WWTP, and (b) written notification
from Clariant authorizing such nutrient transfer. Until such time, Clariant's mass nutrient limitations remain
unchanged.
State Contact
If you have any questions on any of the above information or on the attached permit modification, please contact Tom
Belnick at [phone].
Fact Sheet
N1'l)LS Permit Modification (NC0004375)
Page -1

C!�i,,ht //v_ - f4I4i)J1 y/Ly/II
North Carolina ) ss
Mecklenburg County)
The Charlotte Observer Publishing Co.
Charlotte, NC
Affidavit of Publication
THE CHARLOTTE OBSERVER
CDENR/DWQ/POINT SOURCE B
1617 MAIL SERVICE CENTER
RALEIGH NC 27699
REFERENCE: 40509527 D SPRINKLE
017870/6565508 PUBLIC NOTICE NORTH
Before the undersigned, a Notary Public of said
County and State, duly authorized to administer
oaths affirmations, etc., personally appeared,
being duly sworn or affirmed according to law,
doth depose and say that he/she is a
representative of The Charlotte Observer
Publishing Company, a corporation organized and
doing business under the laws of the State of
Delaware, and publishing a newspaper known as The
Charlotte Observer in the city of Charlotte,
County of Mecklenburg, and State of North Carolina
and that as such he/she is familiar with the
books, records, files, and business of said
Corporation and by reference to the files of said
publication, the attached advertisement was
inserted. The following is correctly copied from
the books and files of the aforesaid Corporation
and Publication.
PUBLISHED ON: 04/29
AD SPACE:
FILED ON
NAME
In Testimon
day and year
Notary::
56 LINE
05/03/11
, LE: a
DATE: M
A'
Public Notice
North Carolina Environmental Management
Commission/NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Notice of Intent to Issue a NPDES Wastewater Permit
The North Carolina Environmental Management Commission
proposes to issue a NPDES wastewater discharge permit to the
person(s) listed below.
Written comments regarding the proposed permit will be
accepted until 30 days after the publish date of this notice. The
Director of the NC Division of Water Quality (DWO) may hold a
public hearing should there be a significant degree of public
nterest. Please mail comments and/or information requests to
DWO at the above address. Interested persons may visit the
DWO at 512 N. Salisbury Street, Raleigh, NC to review
information on file. Additional information on NPDES permits and
this notice may be found on our website:
http://portal.ncdenr.org/web/wq/swp/ps/npdes/calendar, or by
calling [phone].
Clariant Corporation requested a modification of permit
NC0004375 for Mount Holly East facility in Mecklenburg County;
this facility discharges treated industrial wastewater to Catawba
River, Catawba River Basin.
LP17870
set my hand and affixed my seal, the
iwly Commission Expires May 17, 2011
My Commission Expires: _/_/_

ATA
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
MEMORANDUM
To:
From:
Subject:
Apri127, 2011
Britt Setzer
NCDENR / DEH / Regional Engineer
Mooresville Regional Office
Tom Belnick
NPDES Unit
Review of Draft NPDES Permit Modification for NC0004375
Clariant Corporation
Mecklenburg County
Please indicate below your agency's position or viewpoint on the draft permit and return this form by May 27, 2011. If
you have any questions on the draft permit modification, please contact me at [phone] or e-mail
[e-mail].
RESPONSE: (Check one)
Concur with the issuance of this permit provided the facility is operated and maintained properly, the
stated effluent limits are met prior to discharge, and the discharge does not contravene the designated
water quality standards.
Concurs with issuance of the above permit, provided the following conditions are met:
Opposes the issuance of the above permit, based on reasons stated below, or attached:
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An Equal Opportunity 1 Affirmative Action Employer
�ne CaYO11Ila
�tura!!,

oA CfC*1 ciah• io `.2004!(
zaif
Belnick, Tom
From: [e-mail]
Sent: Thursday, April 28, 2011 10:55 AM
To: Belnick, Tom
Subject: Re: NC0004375 Clariant Permit Mod
Tom,
Thank you for providing this draft permit modification for our review. I have no comments.
Pamala Myers
404.562.9421
myers.pamala(Eepa.gov
Environmental Engineer and Technical Advisor I Pollution Control and Implementation Branch
Water Protection Division I Municipal and Industrial NPDES Section U.S. EPA, Region 4 161
Forsyth St. SW I Atlanta, GA 30303
.,.... ....• -'•...><
From: "Belnick, Tom" <[e-mail]>
To: Pamala Myers/R4/USEPA/US@EPA, "Parker, Michael" <michael.parkerPncdenr.gov>,
"Setzer, Britt"
<britt.setzerRncdenr.gov>, "erin.hallOmecklenburgcountync.gov"
<erin. [e-mail]>,
"Stecker, Kathy" <kathy.steckerOncdenr.gov>
Date: 04/26/2011 12:39 PM
Subject: NC0004375 Clariant Permit Mod
Folks- attached please find a proposed NPDES permit modification for Clariant involving a
nutrient allocation transfer, but no net change in nutrient loading to the lake. This mod
will go to public notice on April 27.
Major Discharger- EPA review
Discharge to WS Class- DEH review
Discharge in Mecklenburg County- Mecklenburg County review Discharge to MR0 Region- Region
review Discharge subject to TMDL- TMDL review
Tom Belnick
Supervisor, Complex NPDES Permitting Unit NC DENR/Division of Water Quality
1617 Mail Service Center, Raleigh, NC 27699-1617
[phone]; fax [phone]
1

E-mail correspondence to and from this address may be subject to the North Carolina Public
Records Law and may be disclosed to third parties.
[attachment "4375-draft Mod letter 2011.docx" deleted by Pamala Myers/R4/USEPA/US]
[attachment "4375-fact sheet-2011 Mod.docx" deleted by Pamala Myers/R4/USEPA/US] [attachment
"4375-Permit Mod-2011.docx"
deleted by Pamala Myers/R4/USEPA/US] [attachment "DEH Review 27Apri12011.docx" deleted by
Pamala Myers/R4/USEPA/US]
2

I s
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
Mr. Bill Archer, Facility Manager
Clariant Corporation
P.O. Box 669246
Charlotte, North Carolina 28266
Dear Mr. Archer:
April27, 2011
Dee Freeman
Secretary
Subject: Draft NPDES Permit Modification
Permit NC0004375
Clariant Corporation
Mecklenburg County
Enclosed with this letter is a copy of the draft permit modification for your facility. Please review the
draft modification very carefully to ensure thorough understanding of the conditions and requirements it
contains.
The draft modification contains the following significant changes from your current permit:
• A 90% nutrient (TN, TP) allocation transfer from Clariant'permit to a future City of Charlotte
Regional WWTP. The actual reduction in Clariant's mass nutrient limitations (to 31.5
pounds/day TN and 4 pounds/day TP, based on a 12-month rolling average) will become
effective upon the Division's receipt of (a) an Engineer's Certificate of Construction Completion
for the Charlotte Regional WWTP, and (b) written notification from Clariant authorizing such
nutrient transfer.
Please submit any comments to me no later than thirty days following your receipt of the draft permit
modification.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] i Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An Equal opportunity 1 Affirmative Action Employer
No"rthCarolina
7Vaturaiij

If you have any questions or comments concerning this draft pernnit modification, please contact me at the
following e-mail address: tom.bclnickw,ncdenr.gov, or telephone number: 919-807-6390.
Sincerely,
m Belnick, Supervisor
Complex Permitting Unit
Cc (Hardcopy):
NPDES File
--€ontral File -
Cc (Email):
EPA Region 4 (Pamala Myers)
Mooresville Regional Office / Water Quality Section (Mike Parker)
Modeling/TMDL Unit (Kathy Stecker)
DEH (Britt Setzer)
Mecklenburg County (Erin Hall)
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location; 512 N. Salisbury St. Raleigh, North Carn'lna 27604
Phone: [phone] \ FAX: [phone] Customer Service: 1-877-623.6748
Internet: www.ncwaterquality.org
An Equal Opportunity \ Affirmative Action Employer
NorthCarolina
Naturally

. • Permit NC0004375
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until the addition of future wastewater
sources or expiration, the Permittee is authorized to discharge treated CWT and non -categorical industrial process
wastewater from outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Average
Daily Maximum
Measurement
Sample
Sample Location
Frequency
Type
Flow
3.9 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-day, 20°C4
300.1 pounds/day
888.5 pounds/day
Daily
Composite
Effluent
Total Suspended Solids
395.4 pounds/day
1,245.2 poundslday
Daily
Composite
Effluent
0il and Grease
102.9 pounds/day
344.2 pounds/day
Monthly
Grab
Effluent
Dissolved Oxygen
Daily
Grab
Effluent, Ul & D'
Fecal Coliform
(geometric mean)
Monthly
Grab
Effluent
pH2
Daily
Grab
Effluent, Ul & Di
NH3 as N4
574.5 pounds/day
861.8 pounds/day
Daily
Composite
Effluent
Temperature °C
Daily
. Grab
Effluent, U' & Di
Conductivity
Daily
Grab
Effluent, U' & Di
COD
Monthly
Grab
Effluent
Total Nitrogen
(NO2+NO3+TKN)
318.5 pounds/day5
31.5 pounds/day6
Monthly
Composite
Effluent
Total Phosphorus
40.0 pounds/day6
4.0 pounds/day6
Monthly
Composite
Effluent
Total Mercury
12 ng/L
12 ng/L
Monthly
Grab
Effluent
Total Phenols
Monthly
Grab
Effluent
MBAS
Quarterly
Composite
Effluent
Total Iron
Quarterly
Composite
Effluent
Sulfates
Quarterly
Composite
Effluent
Chlorides
Quarterly
Composite
Effluent
Total Manganese
•
Quarterly
Composite
Effluent
Chronic Toxicity3
Quarterly
Composite
Effluent
Total Chromium
Monthly
Composite
.
Effluent
Total Antimony
310 pglL
310 pg/L
Monthly
Composite
Effluent
Total Arsenic
2,771 pglL
2,771 pglL
Monthly
Composite
Effluent
Total Copper
3.97 pounds/day
4.5 pounds/day
Monthly
Composite
Effluent
Total Zinc
2.2 pounds/day
2.6 pounds/day
Monthly
Composite
Effluent
Footnotes: see next page
1

Footnotes to Effluent Sheet A(1):
1. U= upstream at NC Highway 27. D = downstream at I-85. Upstream and downstream samples for dissolved
oxygen, temperature, conductivity and pH shall be collected three times per week during June, July, August and
September and once per week during the remaining months of the year.
2. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
3. Chronic Toxicity, refer to Section A. (3).
4. Staging requirements (applicable April 1-October 31) — Refer to Section A. (5).
5. The Total Nitrogen and Total Phosphorus mass limitations are based on a 12-month rolling average. Refer to
Section A. (4).
6. The reduction in Clariant's nutrient mass limitations reflect a 90°/a nutrient allocation transfer of 287 pounds/day
Total Nitrogen and 36 pounds/day Total Phosphorus to the City of Charlotte's proposed Regional WWTP. The
allocation transfer and subsequent reduction in Clariant's nutrient mass limitations will become effective upon the
Division's receipt of both (a) an Engineer's Certificate of Construction Completion for the Charlotte Regional
WWTP, and (b) written notification from Clariant authorizing such nutrient transfer. Clariant's reduced mass
nutrient limitations are based on a 12-month rolling average (refer to Section A.(4)).
There shall be no discharge of floating solids or visible foam in other than trace amounts.
2

Department of Environment and Natural Resources
Division of Water Quality
Fact Sheet for NPDES Permit Modification
Facility Information: NC0004375 (Clariant Corporation)
Applicant/Facility Name:
Clariant Corporation — Mt. Holly
Applicant Address:
P.O. Box 669246, Charlotte, NC 28266
Facility Address:
11701 Mount Holly Rd., Charlotte, NC28214
Permitted Flow:
3.9 MGD (Grade IV — Biological)
Type of Waste:
Industrial, Stormwater, and Sanitary Wastewater
Facility/Permit Status:
Permit Modification
County:
Mecklenburg County
Miscellaneous
Receiving Stream:
Catawba River
Stream Classification:
WS-IV-CA
303(d) Listed?:
No
Subbasin:
03-08-34
Drainage Area (mi2):
40.8 mi'
Summer 7Q10 (cfs):
329 cfs
Winter 7Q10 (cfs):
NA
Average Flow (cfs):
3,016 cfs
IWC (%):
1.8 %
Primary SIC Code:
2865
Regional Office:
Mooresville
USGS Topo Quad:
Mountain Island Lake & Mount Holly
Permit Writer:
Tom Belnick
Date:
April 12, 2011
Permit Modification
This permit modification reflects a proposed 90% transfer of nutrient allocation (i.e., 287 lbs/day TN, 36 lbs/day TP)
from permittee (Clariant) to a future regional WWTP to be owned/operated by the City of Charlotte. The proposed
regional WWTP will be located on property adjacent to the Clariant facility as part of a future ReVenture "green"
development. Clariant currently discharges to the Catawba River (Lake Wylie) and nutrient loading is governed by a
1996 Lake Wylie TMDL. This proposed permit modification will not add any additional nutrient loading to the lake.
Lake Wylie is not listed as impaired for chlorophyll -a on the 2010 303(d) list.
In order for this permit modification to be activated, the proposed City of Charlotte Regional WWTP still needs to
proceed through the North Carolina SEPA process with a successful outcome, then receive an NPDES permit which
includes the reserve nutrient allocation. The allocation transfer will become effective upon the Division's receipt of
both (a) an Engineer's Certificate of Construction Completion for the regional WWTP, and (b) written notification
from Clariant authorizing such nutrient transfer. Until such time, Clariant's mass nutrient limitations remain
unchanged.
State Contact
If you have any questions on any of the above information or on the attached permit modification, please contact Tom
Belnick at [phone].
Fact Sheet
NPDES Permit Modification (iNC'0004375)
Page 1r�

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Permit Number
INC0004375
Owner
IClariant Corporation
Mailling Address Line 1
IP 0 Box 669246
Mailing Address Line 2
City
'Charlotte
Stale
INC
Zip
128218
Notice Language - Paper
Facility
'Mount Holy East (MHE) Facility
County
'Mecklenburg
Facility Type
'Industrial Process & Commercial
Permitted Flow
'3903000
Receiving Stream
'CATAWBA RIVER (Lake Wylie beIw elevation 570)
Subbasin
130834
Region Office
'Mooresville
Cladant Corporation requested a modification of permit NC0004375 fa Mount Holy East fachty in Mecklenbug County; thin facility
discharges 11eaitd industrial wastewater to Catawba River, Catawba River Basin.
Notice Language - Website
Clariant Corporation, P.O. Box 669246, Charlotte. NC 28266, Mecklenburg County. has appled for a modification of As NPDES discharge
permit (number NC0004375) discharging to the Catawba River n the Catawba Riser Basin. This modilication provides la a nutrient
allocation transfer. Clariard currently operates one outlafl 001 (heated wastewater(. Currently BOD, TSS, Of and Grease, ammonia, mercury,
antimony. arsenic. and CViT parameters are water quality lhrded This discharge may alfecl future allocations in This portion of the Catawba
Rivet Basin.
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Belnick, Tom
From: Belnick, Tom
Sent: Tuesday, April 26, 2011 12:35 PM
To: '[e-mail]'; Parker, Michael; Setzer, Britt;
'[e-mail]'; Stecker, Kathy
Subject: NC0004375 Clariant Permit Mod
Attachments: 4375-draft Mod letter 2011.docx; 4375-fact sheet-2011 Mod.docx; 4375-Permit
Mod-2011.docx; DEH Review 27ApriI2011.docx
Folks- attached please find a proposed NPDES permit modification for Clariant involving a nutrient allocation transfer,
but no net change in nutrient loading to the lake. This mod will go to public notice on April 27.
Major Discharger- EPA review
Discharge to WS Class- DEH review
Discharge in Mecklenburg County- Mecklenburg County review
Discharge to MRO Region- Region review
Discharge subject to TMDL- TMDL review
Tom Belnick
Supervisor, Complex NPDES Permitting Unit
NC DENR/Division of Water Quality
1617 Mail Service Center, Raleigh, NC 27699-1617
[phone]; fax [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
1

C%v,ad
y/ ePoit
. Belnick, Tom
From: Bill Archer [[e-mail]]
Sent: Thursday, April 21, 2011 12:36 PM
To: Belnick, Tom
Subject: RE: Draft Nutrient Transfer Language
Tom,
I circulated this pre -draft to other Clariant/ReVenture folks and the feedback I've received is that this looks very good.
Thanks for your efforts on this matter.
Kind regards,
Bill Archer
From: Belnick, Tom[mailto:tom.belnick(ancdenr.govl
Sent: Wednesday, April 20, 2011 10:09 AM
To: Bill Archer
Cc: Templeton, Mike
Subject: Draft Nutrient Transfer Language
Bill- attached are pre -draft versions of the Clariant permit mod. Let me know if this adequately captures the conditions
of the proposed nutrient transfer. I plan to proceed to public notice on next Wednesday April 27 for a 30-day public
comment period.
Tom Belnick
Supervisor, Complex NPDES Permitting Unit
NC DENR/Division of Water Quality
1617 Mail Service Center, Raleigh, NC 27699-1617
[phone]; fax [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
1

Cllariant
Clariant Corporation
Mt. Holly Plant
March 31, 2011
P.O. Box 669246
Charlotte, NC 28266
Mr. Tom Belnick
NPDES Program Western Supervisor
NC Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Minor Permit Modification Request
NPDES Permit No. NC0004375
Clariant Corporation — Mt. Holly East Plant
Dear 1VIr. Belnick:
With this letter Clariant Corporation requests a minor modification to its Mount Holly
East Plant NPDES Permit (NC0004375). The requested modification is to add language
in the permit that will transfer 90% of the nutrient allocation in Clariant's permit to the
City of Charlotte upon completion of the City's new Regional Wastewater Treatment
Plant adjacent to the Clariant Plant.
The City's new Regional Plant will discharge to the Catawba River just downstream from
the Clariant discharge. Charlotte Mecklenburg Utilities (CMU) has been in discussions
with Clariant and ReVenture Park, a prospective future owner of the Clariant Plant, about
transferring nutrient allocations to the City to allow it to obtain the NPDES Permit
needed for the new Regional Plant. Clariant/ReVenture have agreed to transfer 90% of
Clariant's Nitrogen and Phosphorus allocation to the City once construction of the new
Regional Plant is completed. By the time of this transfer, the Clariant Plant will have
phased out of industrial wastewater treatment to accommodate this nutrient reduction.
We understand from our conversations with your office that the Division of Water
Quality agrees with this transfer so that the City's Regional Plant may proceed with the
permitting process. We are therefore seeking an NPDES permit modification that would
transfer 90% of Clariant's nutrient allocation automatically, without the need for
additional permit modification in the future. This approach would simplify the
administration of the transfer, provide assurance to DWQ on nutrients as it reviews the
Regional Plant's permit limits and design, and assure the City that the transfer is in place
as it invests in construction of the new facility.

To these ends, we are suggesting that DENR modify Note 5 under Section A.(1) on page
3 of the Clariant permit to read as follows:
5. The Total Nitrogen limitation is 318.5 pounds/day and Total Phosphorus
limitation is 40 pounds/day based on a 12-month rolling average. Refer to
Section A. (4). These limitations will remain in effect until the later to occur of
both (i) the Department's issuance of a final authorization to the City of Charlotte
to discharge from the City's proposed Regional Wastewater Treatment Facility
adjacent to the Permittee's facility, and (ii) the Department's receipt of written
notification from the Permittee authorizing a nutrient allocation transfer, at which
time:
(x) an allocation of 287 pounds/day of Total Nitrogen and 36
pounds/day of Total Phosphorus (based on a 12-month rolling average)
will be transferred to the City of Charlotte's nutrient discharge allocation
for the Regional Wastewater Treatment Plant, and
(y) the Permittee's nutrient limitations for outfall 001 will be reduced
to 31.5 pounds/day Total Nitrogen and 4 pounds per day Total
Phosphorus, based on a 12-month rolling average.
Thank you for your consideration of this permit modification request. Please contact me
if you have any questions or need additional information.
Sincerely,
William M Archer
Facility Manager
Clariant Corporation
Mount Holly East Plant
cc. Mr. Barry Shearin — CMU (via email)

. Belnick, Tom
From:
Sent:
To:
Subject:
Attachments:
Hello Tom,
[e-mail]
Friday, April 01, 2011 8:45 AM
Belnick, Tom
Fw: Future transfer of nutrient allocations
Permit Mod request.pdf
Yesterday I mailed to you our permit modification request to add language to our NPDES permit (NC0004375) to transfer 90% of our
nutrient allocations to Charlotte -Mecklenburg Utilities when certain conditions are met. I had intended to send this considerably
sooner but was delayed while ReVenture Park and CMU continued to negotiate an agreement. Rather than continue to delay this
request, I am submitting it now with an added condition that the Permittee must send written notice to DWQ authorizing the transfer
in addition to the requirement that CMU's Regional Plant be completed. The timing of this notice to DWQ will be governed by the
agreement between CMU and ReVenture/Clariant whenever it is finalized.
I am attaching a copy of the permit modification request letter that is in the mail. Thank you for your help with this. Please contact me
if you have any questions of need additional information.
Kind regards,
Bill Archer
704-822-2702
(See attached file: Permit Mod request.pdf}
Forwarded by Bill Archer/CLARIANT on 04/01 2011 08:27 AM
Bill Archer/CLARIANT
12/10/2010
02:21 PM
Classification: Internal
Hello Tom,
To"Belnick, Tom" <[e-mail]>
ccChris Barnard/CLARIANT@CLARIANTEXCHANGE,
Mike Teague/CLARIANT@CLARIANTEXCHANGE,
"Tom McKittrick" <[e-mail]>
SubjectFuture transfer of nutrient allocations
As we discussed yesterday, ReVenture Park developer Forsite Development has been in discussions with Charlotte Mecklenburg
Utilities (CMU) about selling 90% of the nutrient allocations currently contained in Clariant's NPDES permit (NC0004375). These
allocations are to be applied towards CMU's NPDES nutrient limits for their proposed Regional Wastewater Treatment Plant to be
built just downstream from Clariant. Forsite/ReVenture and CMU have agreed in general to the terms for this transfer; however, the
agreement still needs to be approved by the City Council in the next month or so.
Here is some background: Forsite is planning to purchase Clariant's Mt. Holly East site and convert it into ReVenture Park, an "Eco-
Industrial Park" focusing on renewable energy. Two key aspects of the development will be an electricity generating plant powered by
refuse derived fuel and a Regional Wastewater Treatment Plant which is planned on property that ReVenture will sell to CMU.
ReVenture will purchase about half the property from Clariant in the next few weeks but will probably not take title to the active plant
property until the energy plant is completed. The current plan is for Clariant to continue to operate the WWTP and hold the NPDES
permit until that time. In the interim, ReVenture will lease those portions of the active site needed for their energy projects. Clariant
plans to continue its current waste treatment activities in the near term, but phase out of all industrial wastewater treatment as CMU's
plant is completed. After connection to CMU, the ReVenture plant will likely continue to treat contaminated groundwater and some of
the site stormwater in a greatly reduced treatment train with a smaller NPDES discharge. For this future discharge, we may need to
keep up to 10% of our current nutrient allocation.
CMU's preferred mechanism to accomplish the nutrient allocation transfer is through new language in Clariant's NPDES permit. The
following text (in blue) is taken from the latest version of the agreement terms between the City and ReVenture (with $ amounts
1

removed):
3. Because the goal of this project is regionalization of, and therefore elimination of other NPDES wastewater permits, the City and
ReVenture agree to the following:
a. The City and ReVenture agree to a purchase price of $ representing 90% of the nutrient allocation (36
lb./day of total phosphorus and 2871b/day of total nitrogen) from the Clariant WWTP permit, paid when the State of
North Carolina approves a NPDES permit modification to the current Clariant permit. The permit modification shall
automatically transfer 90% of the nutrient allocation in Clariant's permit to the City upon completion of the City's
new WWTP.
b. After the City's new WWTP is completed and becomes operational, the City agrees to purchase the remaining
10% Clariant WWTP nutrient allocation (4 lb./day of total phosphorus and 31.5 lb/day of total nitrogen) for $
or portion thereof at a prorated value that is not required for ReVenture to secure the permits listed in item 4 below.
c. The City agrees to accept for treatment all sanitary and industrial wastes generated at the ReVenture site subject to
applicable permitting, connection, and pretreatment requirements and user fees.
4. By the time the City's new WWTP is completed and operational, ReVenture will have secured NPDES permits from the State of
North Carolina for the following:
a. A NPDES permit for ReVenture to treat and discharge to the Catawba River
the contaminated groundwater from its site;
b. A NPDES permit for ReVenture to treat and discharge to the Catawba River
the stormwater attributable to its site.
Please let me know what will be needed from Clariant in the way of a permit modification request to add the requested nutrient
transfer provision to our existing permit. Feel free to contact me if you need additional information or clarification.
Thanks and kind regards,
Bill Archer
2

Clariant Corporation
Mt. Holly Plant
P.O. Box 669246
Charlotte, NC 28266
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March 31 011 /144#41,42
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Mr. Tom Belnick � � ,f_4 ie �, J 9 ft �p � �
NPDES Program Western Supervisor
NC Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Minor Permit Modification Request
NPDES Permit No. NC0004375
Clariant Corporation - Mt. Holly East Plant
Dear Mr. Belnick:
rkwir)—
With this letter Clariant Corporation requests a minor modification to its Mount Holly
East Plant NPDES Perrnit (NC0004375). The requested modification is to add language
in the permit that will transfer 90% of the nutrient allocation in Clariant's permit to the
City of Charlotte upon completion of the City's new Regional Wastewater Treatment
Plant adjacent to the Clariant Plant.
The City's new Regional Plant will discharge to the Catawba River just downstream from
the Clariant discharge. Charlotte Mecklenburg Utilities (CMU) has been in discussions
with Clariant and ReVenture Park, a prospective future owner of the Clariant Plant, about
transferring nutrient allocations to the City to allow it to obtain the NPDES Permit
needed for the new Regional Plant. Clariant/ReVenture have agreed to transfer 90% of
Clariant's Nitrogen and Phosphorus allocation to the City once construction of the new
Regional Plant is completed. By the time of this transfer, the Clariant Plant will have
phased out of industrial wastewater treatment to accommodate this nutrient reduction.
We understand from our conversations with your office that the Division of Water
Quality agrees with this transfer so that the City's Regional Plant may proceed with the
permitting process. We are therefore seeking an NPDES permit modification that would
transfer 90% of Clariant's nutrient allocation automatically, without the need for
additional permit modification in the future. This approach would simplify the
administration of the transfer, provide assurance to DWQ on nutrients as it reviews the
Regional Plant's permit limits and design, and assure the City that the transfer is in place
as it invests in construction of the new facility.

To these ends, we are suggesting that DENR modify Note 5 under Section A.(1) on page
3 of the Clariant permit to read as follows:
5. The Total Nitrogen limitation is 318.5 pounds/day and Total Phosphorus
limitation is 40 pounds/day based on a 12-month rolling average. Refer to
Section A. (4). These limitations will remain in effect until the later to occur of
both (i) the Department's issuance of a final authorization to the City of Charlotte
to discharge from the City's proposed Regional Wastewater Treatment Facility
adjacent to the Permittee's facility, and (ii) the Department's receipt of written
notification from the Permittee authorizing a nutrient allocation transfer, at which
time:
(x) an allocation of 287 pounds/day of Total Nitrogen and 36
pounds/day of Total Phosphorus (based on a 12-month rolling average)
will be transferred to the City of Charlotte's nutrient discharge allocation
for the Regional Wastewater Treatment Plant, and
(y) the Permittee's nutrient limitations for outfall 001 will be reduced
to 31.5 pounds/day Total Nitrogen and 4 pounds per day Total
Phosphorus, based on a 12-month rolling average.
Thank you for your consideration of this permit modification request. Please contact me
if you have any questions or need additional information.
Sincerely,
•,.
William M Archer
Facility Manager
Clariant Corporation
Mount Holly East Plant
cc. Mr. Barry Shearin — CMU (via email)

Clariant Corporation P.O. Box 669246
Mt. Holly Plant Charlotte, NC 28266
March 31, 2011
.ft
Mr. Tom Belnick
NPDES Program Western Supervisor
NC Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Minor Permit Modification Request
NPDES Permit No. NC0004375
Clariant Corporation — Mt. Holly East Plant
Dear Mr. Belnick:
Clariant
7o,5z 27QL
kil-Q/CAT4 Cal lod
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With this letter Clariant Corporation requests a minor modification to its Mount Holly
East Plant NPDES Permit (NC0004375). The requested modification is to add language
in the permit that will transfer 90% of the nutrient allocation in Clariant's permit to the
City of Charlotte upon completion of the City's new Regional Wastewater Treatment
Plant adjacent to the Clariant Plant.
The City's new Regional Plant will discharge to the Catawba River just downstream from
the Clariant discharge. Charlotte Mecklenburg Utilities (CMU) has been in discussions
with Clariant and ReVenture Park, a prospective future owner of the Clariant Plant, about
transferring nutrient allocations to the City to allow it to obtain the NPDES Permit
needed for the new Regional Plant. Clariant/ReVenture have agreed to transfer 90% of
Clariant's Nitrogen and Phosphorus allocation to the City once construction of the new
Regional Plant is completed. By the time of this transfer, the Clariant Plant will have
phased out of industrial wastewater treatment to accommodate this nutrient reduction.
We understand from our conversations with your office that the Division of Water
Quality agrees with this transfer so that the City's Regional Plant may proceed with the
permitting process. We are therefore seeking an NPDES permit modification that would
transfer 90% of Clariant's nutrient allocation automatically, without the need for
additional permit modification in the future. This approach would simplify the
administration of the transfer, provide assurance to DWQ on nutrients as it reviews the
Regional Plant's permit limits and design, and assure the City that the transfer is in place
as it invests in construction of the new facility.
124 12©IEINE@
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APR 01 2011
R- NA. E.:. QUALITY
POINT SOURCE BRANCH

To these ends, we are suggesting that DENR modify Note 5 under Section A.(1) on page
3 of the Clariant permit to read as follows:
5. The Total Nitrogen limitation is 318.5 pounds/day and Total Phosphorus
limitation is 40 pounds/day based on a 12-month rolling average. Refer to
Section A. (4). These limitations will remain in effect until the later to occur of
both (i) the Department's issuance of a final authorization to the City of Charlotte
to discharge from the City's proposed Regional Wastewater Treatment Facility
adjacent to the Permittee's facility, and (ii) the Department's receipt of written
notification from the Permittee authorizing a nutrient allocation transfer, at which
time:
(x) an allocation of 287 pounds/day of Total Nitrogen and 36
pounds/day of Total Phosphorus (based on a 12-month rolling average)
will be transferred to the City of Charlotte's nutrient discharge allocation
for the Regional Wastewater Treatment Plant, and
(y) the Permittee's nutrient limitations for outfall 001 will be reduced
to 31.5 pounds/day Total Nitrogen and 4 pounds per day Total
Phosphorus, based on a 12-month rolling average.
Thank you for your consideration of this permit modification request. Please contact me
if you have any questions or need additional information.
Sincerely,
William M Archer
Facility Manager
Clariant Corporation
Mount Holly East Plant
cc. Mr. Barry Shearin — CMU (via email)