NC0003875_Owner (Name Change)_20101011

NPDES DOCUMENT SCANNING COVER SHEET
NC0003875
Elementis Chromium WWTP
NPDES Permit:
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Staff Comments
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
October 11, 2010
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content on the reirerse side

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NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
October 11, 2010
HOWARD W MORRIS
DIRECTOR OF OPERATIONS NA
ELEMENTIS CHROMIUM INC
5408 HOLLY SHELTER ROAD
CASTLE HAYNE NC 28429
Subject: NPDES Permit Modification- Name and/or
Ownership Change
Permit Number NC0003875
Elementis Chromium Castle Hayne Plant
New Hanover County
Dear Mr. Morris:
Division personnel have reviewed and approved your request to transfer ownership of the subject permit, received
on September 21, 2010. This permit modification documents the change of ownership.
Please find enclosed the revised permit. All other terms and conditions contained in the original permit remain
unchanged and in full effect. This permit modification is issued under the requirements of North Carolina General
Statutes 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection
Agency.
If you have any questions concerning this permit modification, please contact the Point Source Branch at (919)
807-6304.
Sine ely,
697Coleen H. Sullins
cc: Central Files
Wilmington Regional Office, Surface Water Protection
NPDES Unit File NC0003875
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
Naturally

Permit NC0003875
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
Elementis Chromium, Inc.
is hereby authorized to discharge wastewater from a facility located at the
Elementis Chromium Castle Hayne Plant
5408 Holly Shelter Road (NCSR 1002)
Northeast of Castle Hayne
New Hanover County
to receiving waters designated as the Northeast Cape Fear River in the Cape Fear
River Basin
in accordance with effluent limitations, monitoring requirements, and other
conditions set forth in Parts I, II, III and IV hereof.
This permit shall become effective October 11, 2010.
This permit and authorization to discharge shall expire at midnight on January 31, 2013.
Signed this day October 11, 2010.
oleen H. Sullins, Director
OP/ Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0003875
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or
discharge are hereby revoked. As of this permit issuance, any previously issued
permit bearing this number is no longer effective. Therefore, the exclusive authority
to operate and discharge from this facility arises under the permit conditions,
requirements, terms, and provisions included herein.
Elementis Chromium, Inc. is hereby authorized to:
1. Continue to operate the existing process wastewater treatment facility
consisting of a storage tank, six (6) batch reactors, recirculation/equalization
tank, a series of three (3) hydrocyclones followed by a series of three (3)
polymer feed systems/thickeners and clarifiers, pressure sand filters and
optional sulfur dioxide feed with discharge through outfall 001, and,
2. Continue to operate the domestic wastewater treatment facility consisting of
dual train extended aeration package plants with effluent disinfection by
tablet chlorination with discharge through outfall 002, and,
3. After receiving an Authorization to Construct from the Division, to install
dechlorination equipment to the domestic wastewater treatment facility, and,
4. Discharge the flow from outfalls 001 and 002 from said treatment works at
the location specified on the attached map into the Northeast Cape Fear River,
classified B, Swamp, Primary Nursery Area, High Quality Water in the Cape
Fear River Basin.

Permit NC0003875
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — FINAL
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is
authorized to discharge treated industrial wastewater from outfall 001. Such discharges shall be limited and
monitored by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly Average
Daily Maximum
Measurement
Frequency
Sample
Type
Sample Location
Flow
0.785 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-day (20°C)
Weekly
Composite
Effluent
Total Suspended Solids (TSS)
117.11 lbs./day
234.22 lbs./day
Weekly
Composite
Effluent
Hexavalent Chromiuml
0.27 lbs./day
0.48 lbs./day
Weekly
Composite
Effluent
Total Chromium
2.34 lbs./day
4.68 lbs./day
Weekly
Composite
Effluent
Total Nickel
1.81 lbs./day
3.62 lbs./day
Weekly
Composite
Effluent
Temperature (°C)
Weekly
Grab
Effluent
Total Mercury 2 •
Quarterly
Grab
Effluent
Total Nitrogen (NO2 + NO3 + TKN)
Quarterly
Composite
Effluent
Total Phosphorus
Quarterly
Composite
Effluent
Chronic Toxicity 3
Quarterly
Composite
Effluent
Total Copper
Quarterly
Composite
Effluent
Total Zinc
Quarterly
Composite
Effluent
Total Selenium
Quarterly
Composite
Effluent
Total Silver
Quarterly
Composite
Effluent
Chloride
Weekly
Composite
Effluent
PH 4
Weekly
Grab
Effluent
Notes:
1. A composite sample may be used if the sample is analyzed within 24 hours of the first sample
portion collected.
2. Testing for mercury shall be by EPA low level method 1631E, using clean sampling technique.
3. Whole Effluent Toxicity (WET) shall be measured by chronic toxicity (Ceriodaphnia dubia)
Pass/Fail at 4.6% - tests shall be conducted in February, May, August and November. See Part
A. (3.) for details. Toxicity testing shall be done in conjunction with quarterly metals testing.
4. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN
TRACE AMOUNTS.

Permit NC0003875
A. (2.) EFFLUENT LIMITATIONS- AND MONITORING REQUIREMENTS — FINAL
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is
authorized to discharge treated domestic wastewater from internal outfall 002. Such discharges shall be limited
and monitored by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
LIMITS
•
MONITORING REQUIREMENTS
Monthly Average
Daily
Maximum
Measurement
Frequency
Sample Type
Sample Location1
Flow
0.020 MGD
Weekly
Instantaneous
Influent or Effluent
BOD, 5-day (20°C)
30.0 mglL
45.0 mg/L
Weekly
Grab
Effluent
Total Suspended Solids (TSS)
30.0 mg/L
45.0 mg/L
Weekly
Grab
Effluent
Ammonia Nitrogen
2/Month
Grab
Effluent
Dissolved Oxygen 2
Weekly
Grab
Effluent, Upstream,
Downstream
Fecal Coliform (geometric mean)
200/100 mL
400/ 100 mL
Weekly
Grab
Effluent
Total Residual Chlorine 3
28 ug/ L
2/Week
Grab
Effluent
Temperature (°C)
Daily
Grab
Effluent, Upstream,
Downstream
Conductivity
Weekly
Grab
Upstream,
Downstream
Salinity
Weekly
Grab
Upstream,
Downstream
pH 4
Weekly
Grab
Effluent
Notes:
1.
Sample locations: Upstream: Upstream of the outfall (at least 100 yards) at the nearest
accessible point, Downstream: Downstream at HWY 117 bridge at Castle Hayne. Instream
monitoring is waived by Memorandum of Agreement between the permittee and the Lower
Cape Fear River Monitoring Program. Should the permittee's membership in this coalition
terminate at any time, the permittee shall notify the Division immediately in writing and
immediately resume instream monitoring as set in this permit.
2. The daily average dissolved oxygen concentration of the effluent shall not be less than 5.0
mg/L.
3. TRC limit and monitoring are only required if chlorine or chlorine derivatives are used for
disinfection. The TRC limit will become effective April 1, 2012. Monitoring and reporting is
required beginning with the permit effective date. The facility shall report all effluent TRC
values reported by a NC certified laboratory, including field certified. However, effluent values
below 50 ug/ L will be treated as zero for compliance purposes.
4. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN
TRACE AMOUNTS.

Permit NC0003875
A. (3.) CHRONIC TOXICITY PASS/FAIL LIMIT (QUARTERLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia dubia at an effluent concentration of 4.6%.
The permit holder shall perform at a minimum, quarterlu monitoring using test procedures outlined in the
"North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent
versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or
subsequent versions. The tests will be performed during the months of February, May, August and November.
Effluent sampling for this testing shall be performed at the NPDES permitted final effluent discharge below all
treatment processes.
If the test procedure performed as the first test of any single quarter results in a failure or ChV below the permit
limit, then multiple -concentration testing shall be performed at a minimum, in each of the two following months
as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February
1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the highest
concentration having no detectable impairment of reproduction or survival and the lowest concentration that
does have a detectable impairment of reproduction or survival. The definition of "detectable impairment,"
collection method::, exposure regimes, and further statistical methods are specified in the "North Carolina Phase
II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the months in which tests were performed, using the parameter code TGP3B for the
pass/fail results and THP3B for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be sent to the
following address:
Attention: North Carolina Division of Water Quality
Environmental Sciences Section
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section no later than 30
days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate
signature. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is
employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required,
the Permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the
facility name, permit number, pipe number, county, and the month/year of the report with the notation of "No
Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences Branch at
the address cited above.
Should the Permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be
required during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Water Quality indicate potential impacts to the receiving stream, this permit may be re -opened and modified to
include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an
invalid test and will require immediate follow-up testing to be completed no later than the last day of the month
following the month of the initial monitoring.

ELEMENTIS
CHROMIUM
CERTIFIED MAIL 91 7108 2133 3933 2375 0104
RETURN RECEIPT REQUESTED
September 14, 2010
North Carolina Division of Water Quality
Attention: Surface Water Protection Section
1617 Mail Service Center
Raleigh, NC 27699-1617
Elementis Chromium LP (NPDES Permit NC0003875) has undergone a name change from Elementis Chromium LP to
Elementis Chromium Inc. The old corporate structure can be seen in the figure below. The new corporate structure has
merged Elementis Chromium GP and Elementis Chromium LP into one entity entitled Elementis Chromium Inc.
Elementis Chromium
GP Inc
Elementis Chromium
LPI Inc
Elementis Chromium
LP
Please find attached the surface water protection section permit name change/ownership change form. If you have any
questions, please do not hesitate to contact me at 910-675-7224 or Sean Coury at 910-675-7229.
Sincerely,
Howard Morris
Director of Operations, NA
Elementis Chromium Inc
5408 Holly Shelter Rd
Castle Hayne, NC 28429
ELEMENTIS CHROMIUM, Inc.
5408 Holly Shelter Road
Castle Hayne, NC 28429
Telephone: [phone]
Facsimile: 910/675-7201

Beverly Eaves Perdue, Governor
Dee Freeman, Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality
SURFACE WATER PROTECTION SECTION
PERMIT NAME/OWNERSHIP CHANGE FORM
I. Please enter the permit number for which the change is requested.
NPDES Permit (or) Certificate of Coverage
N
C
0
0
0
3
8
7
5
II. Permit status prior to status change.
a. Permit issued to (company name):
G
5
Elementis Chromium LP
b. Person legally responsible for permit: Howard W Morris
First MI
Director Of Operations, NA
Title
5408 Holly Shelter Rd
Permit Holder Mailing Address
Castle Hayne
Last
NC 28429
City State Zip
[phone] [phone]
Phone Fax
c. Facility name (discharge): Elementis Chromium Castle Hayne Plant
d. Facility address: 5408 Holly Shelter Rd
Castle Hayne
Address
NC 28429
City State
e. Facility contact person: Sean T Coury
First / MI / Last
III. Please provide the following for the requested change (revised permit).
a. Request for change is a result of: ❑ Change in ownership of the facility
® Name change of the facility or owner
If other please explain:
b. Permit issued to (company name): Elementis Chromium, INC
c. Person legally responsible for permit:
SEP 2 zo o
DEAR-�frp:i .r:QJAI_,'1Y
POINT SOi RcE 3F ,ANCH
Zip
[phone]
Phone
Howard W Morris
First MI Last
Director Of Operations, NA
Title
5408 Holly Shelter Rd
Permit Holder Mailing Address
Castle Hayne
NC 28429
City State Zip
[phone] [e-mail]
Phone E-mail Address
d. Facility name (discharge): Elementis Chromium Castle Hayne Plant
e. Facility address: 5408 Holly Shelter Rd
f. Facility contact person:
Address
Castle Hayne NC 28429
City State Zip
Sean T Coury
First MI Last
[phone] [e-mail]
Phone E-mail Address
Rav;a a I /J1)110

PERMIT NAME/OWNERSHIP CHANGE FORM
Page 2 of 2
IV. Permit contact information (if different from the person legally responsible for the permit)
Permit contact:
V.
VI.
First
MI Last
Title
Mailing Address
City State Zip
( )
Phone E-mail Address
Will the permitted facility continue to conduct the same industrial activities conducted prior
to this ownership or name change?
® Yes
❑ No (please explain)
Required Items: THIS APPLICATION WILL BE RETURNED UNPROCESSED IF ITEMS
ARE INCOMPLETE OR MISSING:
❑ This completed application is required for both name change and/or ownership change
requests.
❑ Legal documentation of the transfer of ownership (such as relevant pages of a contract deed,
or a bill of sale) is required for an ownership change request. Articles of incorporation are
not sufficient for an ownership change.
The certifications below must be completed and signed by both the permit holder prior to the change, and
the new applicant in the case of an ownership change request. For a name change request, the signed
Applicant's Certification is sufficient.
PERMITTEE CERTIFICATION (Permit holder prior to ownership change):
I, Howard Morris, attest that this application for a name/ownership change has been reviewed and is
accurate and complete to the best of my knowledge. I understand that if all required parts of this
application are not completed and that if all required supporting information is not included, this application
package will be returned as incomplete.
September 14, 2010
Signature Date
APPLICANT CERTIFICATION
I, Howard Morris, attest that this application for a name/ownership change has been reviewed and is
accurate and complete to the best of my knowledge. I understand that if all required parts of this
application are not completed and that if all required supporting information is not included, this application
package will be returned as incomplete.
C
9/14/10
S. ature Date
PLEASE SEND THE COMPLETE APPLICATION PACKAGE TO:
Division of Water Quality
Surface Water Protection Section
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Revised 1/2009