NC0023884_Industrial User_20210527

May 27, 2021
Mr. Michael Montebello
NC Division of Water Resources
Water Quality Permitting
Municipal Unit -Permitting
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Transmittal of Permit:
0026- Hitachi Metals North Carolina, Ltd.
Dear Mr. Montebello:
Please find enclosed the following permit and the reason for reissuing.
RECEIVED
JIJN 0 2 2021
NCDEQ/DWR/NPDES
IUP
0026- Hitachi Metals NC, Ltd.
Reason for Reissuing
Permit Renewal
If you need any additional information, or have any questions, you may contact me at (704)638-
5375.
S. cerely,
Jeffery A Greer
Pretreatment Program Coordinator
ENCLOSURES
CC: PT files
1915 Grubb Ferry Road
Salisbury, NC 28144
1
Salisbury -Rowan Utilities Telephone [phone]
Environmental Services Division Fax [phone]

June 30, 2021
Mr. Avery Moore
Hitachi Metals North Carolina, Ltd.
1 Hitachi Metals Drive
China Grove, NC 28023
Subject: Renewal of Pretreatment Discharge Permit #0026
HITACHI METALS North Carolina, Ltd.
Dear Mr. Moore:
You will find enclosed Hitachi Metals North Carolina, Ltd. pretreatment discharge permit # 0026 located in
China Grove, Rowan County.
The permit renewal includes the following changes:
• Added language Part III Special Conditions Section 6 to reflect required Copper & Molybdenum
reduction and Pretreatment equipment maintenance practices and submit updates in the Semi -Annual
report submittal.
• Changed Chromium laboratory detection level from 10 ug/1 to 5 ug/1.
• Removed Arsenic permit limit of 0.017 pounds/day.
• Arsenic changed to an Industrial User monitored parameter.
• Molybdenum added as an Industrial User monitored parameter.
Please read this permit carefully so that you will be fully aware of these changes. It is the permittee's
responsibility to do so, and to fully comply with all of the permit's requirements.
If any requirements contained in this permit are unacceptable, you have the right to an adjudicatory
hearing upon written request within thirty (30) days following the receipt of this letter. Unless such
demand is made, the provisions of the enclosed permit shall be final and binding.
If you have questions regarding this permit or related matters, please do not hesitate to contact me or
Sonja Basinger at [phone].
Pretreatment Coordinator
Enclosures
1915 Grubb Ferry Road
Salisbury, NC 28144
Salisbury -Rowan Utilities Telephone [phone]
Environmental Services Division Fax [phone]

PERMIT
INDUSTRIAL USER PRETREATMENT PERMIT (IUP) TO DISCHARGE WASTEWATER
UNDER THE CITY OF SALISBURY INDUSTRIAL PRETREATMENT PROGRAM
0026
IUP Number
471 Subpart J
40 CFR Category
In compliance with the provisions of North Carolina General Statute 143-215.1, any applicable Federal categorical
pretreatment regulations, all other lawful standards and regulations promulgated and adopted by the North Carolina
Environmental Management Commission, and the City of Salisbury Sewer Use Ordinance. The following industry,
hereafter referred to by name or as the permittee:
Industry Name, Permittee:
HITACHI METALS, Ltd. Of NC
SIC Code:
3264
Facility Location:
1Httachi Metals Drive
Mailing Address:
1 Hitachi Metals Drive
China Grove
North Carolina 28023
Contact & Phone:
Mr. Avery Moore, Director of Manufacturing, 704-855-2800 ext. 194
Alternate Contact & Phone:
Mr. Jeff Goodman, Maintenance Manager, 704-855-2800 ext. 191
is hereby authorized to discharge wastewater from the facility located at the above listed address into the sanitary sewer
collection system and the Grant Creek Wastewater Treatment Train of the City of Salisbury listed below:
Name of City Facility:
City of Salisbury
Name of Treatment Train
Grant Creek Treatment Train
NPDES Number:
NC0023884
Treatment Facility Physical Location
1915 Grubb Ferry Road
Salisbury (Spencer), N.C. 28144-1248
In accordance with effluent limitations, monitoring requirements, and all other conditions set forth in Parts I, II, and III of
this Industrial User Pretreatment Permit (IUP).
This permit and the authorization to discharge shall become effective at midnight on:
July 1, 2021
This permit and the authorization to discharge shall expire at midnight on:
i
Z4 1AAi 202)
June 30,
Date Signed
SIU CODE: HIT
2026
Sonj asinger, En ' nmental Services Manager
IUP No. 0026
Page 1 of 17

Part I
Specific Conditions
A. IUP Basic Information:
Receiving Control Authority & WWTP Name:
City of Salisbury/ Grant Creek WWTT
POTW NPDES #:
NC0023884
IUP Name:
Hitachi Metals, Ltd. Of N.0
IUP Number:
0026
IUP Effective Date:
July 1, 2021
Pipe Number:
01
IUP Expiration Date:
June 30, 2026
IUP 40 CFR #:
471 Subpart J
B. IUP Modification History:
Effective Date
08/18/91
07/01/92
09/01/96
Renewal or Modification Description of changes over previous IUP
Renewal
Renewal
Modified Dropped several parameters, added Hg monitoring,
VOC monitoring and related "Special Conditions".
11/15/99 Modified Put in new permit format
12/10/99 Modified Removed Priority Pollutants except volatiles
08/15/01 Renewal Issued new permit
01/16/04 Modified New permit format and added new mercury
requirement
08/25/06 Renewal Issued new five year permit
03/07/08 Modified New permit format and added new mercury
requirement
06/26/09 Modified New permit format, added Ammonia nitrogen
monitoring, decreased industry's mercury
monitoring frequency, and increased pH limit
6.0-10.0 standard units.
08/01/11 Renewal New permit format. Added state language for Part II
General Cond. (2) Reporting; decreased due date
for permit renewal applications and notification of
process changes from 180 to 90 days; added Slug/
Spill chart to Part III Special Cond.(1); decreased
POTW monitoring frequency from 1/6 to 1/12;
updated Part III Special Cond. (4); added Part III
Special Cond. (5) Certified Laboratory
Analysis; changed Mercury collection method from
grab to composite; changed Part I Specific Cond.
(10)(A)(3) from 0.5 hours to 1.0 hour; changed Part I
Specific Cond. (8)(e&1) Definitions and (9)(a)
Monitoring by the Permittee (Self -Monitoring);
decreased monitoring frequency for Ammonia
Nitrogen from 2/6 to 1/6; added monitoring
requirements for Phenol and Nickel; removed all
organics monitoring except Benzene, Chlorobenzene,
and Chloroform; changed responsibility for organics
monitoring requirements from POTW to Industry.
04/27/13 Modified Removed self -monitoring requirements for
chloroform, pH, and Temperature; revised permit
language in Part I, Section 3 and Part II, Sections 5,
16, and 17.
12/13/13 Modified Added self -monitoring for pH and Temperature.
Changed all references of "Division of Water
Quality" to "Division of Water Resources".
08/21/14 Modified Updated pages 1 and 2 for new primary and alternate
contacts.
SIU CODE: HIT
IUP No. 0026
Page 2 of 17

Part I
Specific Conditions
B. IUP Modification History (Continued):
Effective Date Renewal or Modification
Description of Changes Over Previous IUP
07/29/16 Renewal Updated permit format to reflect state model;
Changed all references of NCDENR to NCDEQ; pH
and Temperature IU monitoring changed from 1/6
to daily; Changed flow reports due date to
postmarked no later than 7th of each month; revised
Special Conditions Section 5 Flow Measurement
Requirements to include sampling equipment
maintenance and pH meter calibration
requirements. Added self -monitoring parameter
Arsenic with limit 0.017 Ibs/day; Changed
units/limits for BOD and TSS from 300mg/1 to 500.4
Ibs/day, COD from 600 mg/1 to 1001 Ibs/day, and
TKN from 40 mg/I to 67 Ibs/day. Increased Zinc
limit from 0.220 Ibs/day to 0.292 Ibs/day.
11/13/2020 Modification Changed language in Part III Specific Conditions
Section 2. Total Mercury to reflect test Method EPA
1631 E will be used for mercury monitoring and
changed the minimum quantitation detection level to
1 ng/L. Removed IU self -monitoring 1/6 frequency
for mercury on the Effluent Limits Table.
7/1/ 2021 Renewal Added language Part III Special Conditions Section
6 to reflect required Copper & Molybdenum
reduction and PT equipment maintenance practices
and submit updates in the semi-annual report
submittal. Changed Chromium laboratory detection
level from 10 ug/I to 5 ug/I. Removed Arsenic permit
limit of 0.017 ##'s/day. Arsenic changed to an IU
monitored parameter. Molybdenum added as an IU
monitored parameter.
C. Authorization Statement:
1) The permittee is hereby authorized to discharge wastewater in accordance with the effluent limitations, monitoring
requirements, and all other conditions set forth in this Industrial User Pretreatment Permit (IUP) into the sewer
collection system and the Town Creek Wastewater Treatment Train of the City of Salisbury.
2) The permittee is hereby authorized to continue operation of and discharge wastewater from the following treatment
or pretreatment facilities. These facilities must correspond to the units listed on both the application and inspection
forms.
IU Treatment Units
1. pH correction
2. Oil & Grease separation
3. Sedimentation ( separation)
4. Air Stripping
5. Discharge flow measurement
3) The permittee is hereby authorized to, if required by the City of Salisbury, and after receiving Authorization to
Construct (A to C) from the City, construct and operate additional pretreatment units as needed to meet the effluent
limitations.
SIU CODE: HIT
IUP No. 0026
Page 3of17

D. Description of IUP Discharge(s):
Pipe 01 Discharge Point
Manhole # 8 containing I.0 discharge flowmeter, downstream from combined process and
domestic flow. Pipe 01 contains domestic, cooling tower water which goes to the scrubber
tanks then to the POTW.
Part
Specific Conditions
E. Schematic and Monitoring Locations:
The facility schematic and description of monitoring location(s) given below must show enough detail such that
someone unfamiliar with the facility could readily find and identify the monitoring location(s) and connection to the
sewer. Include and identify all regulated pipes.
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SIU CODE: HIT
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IUP No. 0026
Page 4 of 17
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Part I
Specific Conditions
F: Effluent Limits and Monitoring Requirements:
EFFLUENT LINIITS TABLE I - Pipe #01
WWTP Treatment Train:
POTW:
Grant Creek Treatment Train
City of Salisbury
SIU Name:
Hitachi Metals
POTW NPDES #:
NC0023884
Permit #:
0026
Effective Date::
July 1, 2021
Pipe #:
#01
Expiration Date:
June 30, 2026
40 CFR #:
471, Subpart J
THE LIMITS IN THIS TABLE ARE:
1)Limits for the Entire Permit Period.
2)Interim Limits for Period #1:
3)Interim Limits for Period #2:
4)Final Limits
X
DISCHARGE FLOW LIMITS
Daily Maximum
Monthly Avg.
0.250 MGD
0.200 MGD
1. pH Limit - The pH of this discharge, identified by the pipe number indicated above, shall
10.00 standard units at all times.
2. Temperature Limit - The temperature of the discharge, identified by the pipe number stated
65.5 degrees Celsius at all times.
be within the range of 6.00 to
above, shall be less than
Limited Parameter
and
Units
Daily
Maximum
Limit
Monthly
Average
Limit
Industry
Monitoring
Frequency
POTW
Monitoring
Frequency
Sample
Collection
Method
Laboratory
Detection
Level
Flow, MGD
0.250
0.200
Daily
1/12
Discharge
flow meter
pH, s.u. (1)
Daily
1/12
Grab
Temperature, Celsius (2)
Daily
I/12
Grab
BOD, lbs/day
500.4
---
1/6
1/12
Composite
2 mg/1
COD, lbs/day
1001
---
1/6
1/12
Composite
10 mg/L
TSS, lbs/day
500.4
---
1/6
1/12
Composite
2.5 mg/L
TKN, Ibs/days
67
---
1/6
1/12
Composite
1 mg/L
Total Chromium, lb/day
0.710
---
1/6
1/12
Composite
5 ug/L
Total Nickel, lb/day
.160
---
1/6
1/12
Composite
5 ug/L
Total Zinc, lb/day
0.292
---
1/6
1/12
Composite
10 ug/L
Oil & Grease, mg/I
200
---
1/6
1/12
Grab
5 mg/L
Mercury, ng/L 4
Monitor
---
----
1/12
Grab
1 ng/L
Arsenic, lbs/day
Monitor
---
1/6
1/12
Composite
2 ug/L
Ammonia nitrogen, mg/I
Monitor
---
1/6
1/12
Composite
0.1 mg/I
Molybdenum
Monitor
---
1/6
1/12
Composite
10 ug/L
#Total Cyanide, lb/106 off - lb
0.470
0.195
1/6
1/12
Grab
10 ug/1
#Total Copper, lb/106 off- lb
18.916
9.96
1/6
1/12
Composite
2 ug/L
#Total Lead, lb/106 off- lb
0.681
0.324
1/6
1/12
Composite
2 ug/1
There shall be no discharge of floating solids or visible foam in other than trace amounts.
4 Monitor per Special Conditions in Part III of this permit.
SIU CODE: HIT
IUP No. 0026
Page 5 of 17

Part I
Specific Conditions
G. Definitions and Limit Page(s) notes:
In addition to the definitions in the City of Salisbury Sewer Use Ordinance, the following definitions and requirements
apply:
a. The "City" when referred to in the text of this permit shall mean the Environmental Services Division of Salisbury -
Rowan Utilities.
b. "Daily" shall mean any day or any part of a day during which the permittee's process operates or on which a
wastewater discharge occurs.
c. A "grab sample," for monitoring requirements, shall mean a single "dip and take" sample, not exceeding fifteen
minutes total collection time, taken at a representative point in the discharge stream.
d. A "composite sample," for monitoring requirements of this IUP, is defined as the automatic or manual collection of
one grab sample of constant volume, not less than 100 ml, collected every hour during the entire discharge period of 24
hours. Sampling day shall be a typical production, and discharge day.
e. A "daily average" shall mean the sum of all values obtained for a parameter in any twenty-four hour period divided
by the number of results for that parameter from analysis of samples collected during that twenty-four hour period.
f A "daily maximum" shall mean the largest numerical result obtained for a parameter in any twenty-four hour period,
from analysis of samples collected during that twenty-four hour period.
g. A "four -day average" for a parameter shall mean the average value obtained for a parameter from a minimum of four
individual composite samples collected within the same calendar month.
h. A "monthly average" shall mean the sum of all values obtained for a parameter in a calendar month, divided by the
number of results for that parameter in that calendar month.
i. A "sampling event" shall mean the collection of a grab or composite sample at the discharge point(s) described in
Part I. A. of this permit and the proper preservation of those samples during and after collection.
j. A "monitoring event" shall mean a sampling event, followed by proper analysis of the samples collected within the
regulated holding time, completion of required chain -of -custody, IDMR forms, and other documentation, and filing
with the Environmental Services Division the required analytical reports by the applicable deadline (reference General
Conditions Part 2).
k. "TTO" or "Total Toxic Organics" shall mean the sum of the concentrations of the toxic organic compounds listed in
40 CFR 433.11 (e) that apply to the permittee's process discharge.
1. "Toxicity" shall mean the qualitative characteristic of a discharge which is measured by the bioassay procedure
currently approved by the State of North Carolina which uses live Ceriodaphnia to indicate the presence or absence of
toxic substances in wastewater discharges.
m. "Priority Pollutants" shall mean those organic chemicals, metals, and other substances defined in the Federal
Register 40 CFR Part 122, Appendix D.
n. The "Semi -Annual Report Periods" shall mean the intervals of January through June, and July through December of
each year.
o. The term "Sewer Use Ordinance" shall mean the most recent revision of those parts of the City of Salisbury's
Utilities Ordinance which regulate discharges to the City of Salisbury collection system, particularly Chapter 25,
Article VIII, Sewer Use Regulations.
SIU CODE: HIT
IUP No. 0026
Page 6 of 17

Part I
Specific Conditions
p. A "slug" or "slug discharge" is any discharge of a non -routine, episodic nature, including but not limited to an
accidental spill or a non -customary batch discharge.
q. A "three-day average" for a parameter shall mean the average value obtained for a parameter from a minimum of
three individual composite samples collected within the same calendar month.
- Definitions of Monitoring Frequency -
A monitoring frequency of 1/12 when applied to monitoring of SIU's by the City shall mean a minimum of one
monitoring event during a calendar year.
Monitoring frequency for industrial dischargers is designated as a fraction of each semi-annual report period. The
fractional designations used in this permit shall have the following meanings when applied to self -monitoring by SIU's.
1. 1/6 Shall mean one monitoring event during January or February and one monitoring event during July or August.
2.2/6 Shall mean one monitoring event during each calendar month of January, February, July, and August.
3.3/6 Shall mean one monitoring event during each calendar month of January, February, March, July, August,
and September.
4.4/6 Shall mean one monitoring event during each calendar month of January, February, March, April, July,
August, September, and October.
5. 5/6 Shall mean one monitoring event during every calendar month except the months of June and December.
6.6/6 Shall mean one monitoring event during every calendar month.
7. 1/12 Shall mean one monitoring event during each calendar year, with that monitoring event being completed
during one of the following months: January, February, March, July, August, or September.
SIU CODE: HIT
IUP No. 0026
Page 7 of 17

PART II
General Conditions
Part II General Conditions Outline:
1. Representative Sampling
2. Reporting
3. Test Procedures
4. Additional Monitoring by Permittee
5. Duty to Comply
6. Duty to Mitigate
7. Facilities Operation, Bypass
8. Removed Substances
9. Upset Conditions
10. Right of Entry
11. Availability of Records
12. Duty to provide Information
13. Signatory Requirements
14. Toxic Pollutants
15. Civil and Criminal Liability
1. Representative Sampling
16. Federal and/or State Laws
17. Penalties
18. Need to Halt or reduce
19. Transferability
20. Property Rights
21. Severability
22. Modification, Revocation, Termination
23. Reapplication
24. Dilution Prohibition
25. Reports of Changed Conditions
26. Construction of Pretreatment Facilities
27. Reopener
28. Categorical Reopener
29. General Prohibitive Standards
30. Reports of Potential Problems
Samples and measurements taken as required herein shall be representative of the volume and nature of the monitored
discharge. All samples shall be taken at the monitoring points specified in this permit and, unless otherwise specified,
before the effluent joins or is diluted by any other wastestream, body of water, or substance. Monitoring points shall not
be changed without notification to and approval by, the permit issuing authority.
2. A. Reporting
1) Monitoring results obtained by the permittee shall be summarized and reported on Indirect Discharge Monitoring
Report Forms (IDMR), postmarked no later than the last calendar day following the month in which the samples
were taken. If no discharge occurs during a calendar month in which a sampling event was to have occurred, an
IDMR form with the phrase "no discharge" shall be submitted for that month. Copies of these and all other reports
required herein shall be submitted to the following address:
Salisbury -Rowan Utilities
Environmental Services Division
Pretreatment Program Coordinator
1915 Grubb Ferry Road
Salisbury, N.C. 28144-1248
2) If the sampling performed by the permittee indicates a violation, the permittee shall notify the City within 24
hours of becoming aware of the violation. The permittee shall also repeat the sampling and analysis and submit the
results of the repeat analysis to the City within 30 days after becoming aware of the violation.
B. Flow Measurement Reporting Requirements:
1 Measurement Frequency and Reporting
a) The flow measurement frequency for each discharge point regulated by this permit is continuous.
b) The total discharge volume from the beginning to the end of each composite sampling event shall be
recorded in gallons per day or million gallons per day and shall be reported to the City in those units along
with the analytical data from the sampling event. A State -approved Indirect Discharge Monitoring Report
(IDMR) form shall also be submitted for each sampling event. The flow recorded during the sampling event
shall be converted to thousands of gallons per day, and shall be indicated in those units on the IDMR form.
SIU CODE: HIT
IUP No. 0026
Page 8 of 17

PART II
General Conditions
c) During every calendar month, the permittee shall maintain a log of readings from the totalizer of each
discharge flow meter. The permittee shall record a totalizer entry for each day of the month that a discharge
occurred. For any day during which a totalizer reading did not increase, a notation shall be made on the log
indicating the reason there was no change. Daily totalizer readings shall be recorded at 24 hour intervals,
within +/- 1.0 hours of a regular time established by the permittee.
d) The permittee shall submit to Environmental Services postmarked no later than the 7th of each month,
copies of all totalizer logs compiled during the previous month. Each monthly log submitted must clearly
show the meter manufacturer's name, the serial number of the device, the original date of installation, the
units of flow (gallons, cubic feet, etc.), and the factor by which the difference in consecutive totalizer readings
must be multiplied to obtain the actual volume discharged. Logs may be faxed or emailed to the
Pretreatment Program Coordinator.
e) Permittee shall also show on each monthly log, a calculation of: (a) The total flow from the first day of
each month through the first day of the following month, and (b) The total flow for each 24 hour period. The
calculated flow must be converted by the permittee to units of gallons or million gallons as appropriate.
C. Calibration of Flow Measurement Devices
Each permittee required to measure discharge flow must consistently maintain such equipment in operating
condition and within design accuracy specifications. Calibration shall be performed at least once during each
semi-annual report period.
D. Semi -Annual Reports - Requirements for Industrial Dischargers:
The permittee, whether subject to Federal categorical standards or not [40 CFR 403.12 (e) & 40 CFR 403.12 (h)],
shall submit Semi -Annual Reports covering the months of January through June, and the months of July through
December. The report for the period of January through June shall be postmarked no later than July loth. The
report for July through December shall be postmarked no later than January loth, and must contain the following
information listed below.
1. Non -Categorical Dischargers shall submit:
(a) A description of the nature, concentration, and flow rate for any new or previously unreported discharge
containing any substance limited by this permit or prohibited by the Salisbury Sewer Use Ordinance.
(b) The results of any monitoring in excess of that required by this permit, if the results were determined by a
North Carolina certified laboratory. Monitoring results obtained from a laboratory not certified by the state of
North Carolina must also be reported, but the wording "Non -certified results" must be clearly indicated on
each page of data submitted.
(c) A written description of any change or modification to the permittee's pretreatment process equipment that
has not previously been submitted in writing.
(d) A report of any increase or decrease in average water consumption of more than ten percent of the amount
consumed during the previous semi-annual report period.
(e) A report of any change in production rate that amounted to more than ten percent of the rate during the
previous semi-annual report period.
(f) A report containing a description of any unreported modification of manufacturing facilities that has
occurred since the last semi-annual report, if that modification had the potential of affecting any wastewater
discharged by the permittee.
SIU CODE: HIT
IUP No. 0026
Page 9 of 17

PART II
General Conditions
(g) Copies of Material Safety Data Sheets not previously submitted for any substance present on the
permittee's premises during the period covered by the report, if that substance contains pollutants limited by
this permit or prohibited by the Salisbury Sewer Use Ordinance.
(h) At least once during the six-month period covered by each semi-annual report, a letter, calibration
certificate, or similar documentation signed by a qualified professional who has the ability to calibrate the
permittee's discharge flow monitoring equipment to design accuracy specifications. The documentation
submitted shall also indicate whether any adjustment was required to bring the flow measurement system
within specifications.
2. Categorical Dischargers shall submit:
In addition to the above reporting requirements for non -categorical dischargers, the permittee whose process is
subject to Federal categorical production -based limits shall keep records of average daily production rates for that
categorical process. The permittee shall include a summary of average production rates in each semi-annual report.
The average production rate that is reported shall be based on the past two six-month compliance periods. The
months on which the permittee bases the average production rates must be clearly noted on the production report.
3. Test Procedures
Test procedures for the analysis of pollutants shall be performed in accordance with the techniques prescribed in 40
CFR Part 136 and amendments thereto unless specified otherwise in the monitoring conditions of this permit. In
addition, the test procedure shall be conducted utilizing recognized techniques that will produce the lowest practical
detection limit for each analyte and sample matrix.
4. Additional Monitoring by Permittee
If the permittee monitors any pollutant at the location(s) designated herein (Pipe 01) more frequently than required
by this permit, using approved analytical methods as specified above, the results of such monitoring shall be
submitted to the City. The City may require more frequent monitoring, or the monitoring of other pollutants not
required in this permit by written notification.
5. Duty to Comply
The permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation of
the City of Salisbury Sewer Use Ordinance and is grounds for possible enforcement action.
6. Duty to Mitigate - Prevention of Adverse Impact
The permittee shall take all reasonable steps to minimize or prevent any discharge in violation of this permit, which
has a reasonable likelihood of adversely affecting human health, the POTW, the waters receiving the POTW's
discharge, or the environment.
7. Facilities Operation, Bypass
The permittee shall at all times maintain in good working order and operate as efficiently as possible, all control
facilities or systems installed or used by the permittee to achieve compliance with the terms and conditions of this
permit. Bypass of treatment facilities is prohibited except when approved in advance by the City. Bypass approval
shall be given only when such bypass is in compliance with 40 CFR 403.17.
8. Removed Substances
Solids, sludges, filter backwash, or other pollutants removed in the course of treatment or control of wastewaters
shall be disposed of in a manner such as to prevent any pollutants from such materials from entering the sewer
system. The permittee is responsible for assuring its compliance with any requirements regarding the generation,
treatment, storage, and/or disposal of "Hazardous waste" as defined under the Federal Resource Conservation and
Recovery Act.
SIU CODE: HIT
IUP No. 0026
Page 10 of 17

PART II
General Conditions
9. Upset Conditions
An "upset" means an exceptional incident in which there is an unintentional and temporary noncompliance with the
effluent limitations of this permit because of factors beyond the reasonable control of the permittee. An upset does
not include noncompliance to the extent caused by operational error, improperly designed or inadequate treatment
facilities, lack of preventative maintenance, or careless or improper operations.
An upset may constitute an affirmative defense for action brought for the noncompliance. The permittee has the
burden of proof to provide evidence and demonstrate that none of the factors specifically listed above were
responsible for the noncompliance.
10. Right of Entry
The permittee shall allow the staff of the State of North Carolina Department of Environmental Quality, Division of
Water Resources, the Regional Administrator of the Environmental Protection Agency, the City and/or their
authorized representatives, upon the presentation of credentials:
1) To enter upon the permittee's premises where a real or potential discharge is located or in which records are
required to be kept under the terms and conditions of this permit; and
2) At reasonable times to have access to and copy records required to be kept under the terms and conditions of this
permit; to inspect any monitoring equipment or monitoring method required in this permit; and to sample any
discharge of pollutants.
11. Availability of Records and Reports
The permittee shall retain records of all monitoring information, including all calibration and maintenance records as
well as copies of reports and information used to complete the application for this permit for at least three years. All
records that pertain to matters that are subject to any type of enforcement action shall be retained and preserved by
the permittee until all enforcement activities have concluded and all periods of limitation with respect to any and all
appeals have expired.
These, and any other records and data maintained by the permittee which provide information related to the
operation of the permittee's pretreatment system or which may influence the quality of the permittee's discharge,
shall be made available by the permittee during inspections by the City; the Department of Environmental Quality;
and by the Environmental Protection Agency.
Except for data determined to be confidential under the Sewer Use Ordinance, all reports prepared in accordance
with the terms of this permit shall be available for public inspection at the Environmental Services Division Office.
As required by the Sewer Use Ordinance, effluent data shall not be considered confidential.
12. Duty to Provide Information
The permittee shall furnish to the Utilities Director or his/her designees, within a reasonable time, any information
which the Director, his/her designee, or the Division of Water Resources may request to determine whether cause
exists for modifying, revoking and reissuing, or terminating this permit or to determine compliance with this permit.
The permittee shall also furnish, upon request, copies of records that are required to be kept by this permit.
13. Signatory Requirements
All reports or information submitted pursuant to the requirements of this permit must be signed and certified by the
Authorized Representative as defined under the Sewer Use Ordinance. If the designation of an Authorized
Representative is no longer accurate because a different individual or position has responsibility for the overall
operation of the facility, or overall responsibility for environmental matters for the company, a new authorization
satisfying the requirements of this section must be submitted to the Utilities Director prior to or together with any
reports to be signed by an authorized representative.
SIU CODE: HIT
IUP No. 0026
Page 11 of 17

PART II
General Conditions
14. Toxic Pollutants
If a toxic effluent standard or prohibition (including any schedule of compliance specified in such effluent standard
or prohibition) is established under Section 307(a) of the Federal Clean Water Act for a toxic pollutant which is
present in the discharge and such standard or prohibition is more stringent than any limitation for such pollutant in
this permit, this permit may be revised or modified in accordance with the toxic effluent standard or prohibition and
the permittee so notified.
15. Civil and Criminal Liability
Nothing in this permit shall be construed to relieve the permittee from civil or criminal penalties for noncompliance.
16. Federal and/or State Laws
Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from
any responsibilities, liabilities, or penalties established pursuant to any applicable Federal and/or State law or
regulation, which includes the City of Salisbury Code of Ordinances.
17. Penalties
The Sewer Use Ordinance of the City of Salisbury provides that any person who violates a permit condition is
subject to a civil penalty not to exceed $25,000 dollars per day of such violation.
Under state law, (NCGS 143-215.6B), under certain circumstances it is a crime to violate terms, conditions, or
requirements of pretreatment permits. It is a crime to knowingly make any false statement, representation, or
certification in any record or other document submitted or required to be maintained under this permit, including
monitoring reports or reports of compliance or noncompliance. These crimes are enforced at the prosecutorial
discretion of the local District Attorney.
18. Need to Halt or Reduce not a Defense
It shall not be a defense for a permittee in an enforcement action that it would have been necessary to halt or reduce
the permitted activity to maintain compliance with the conditions of the permit.
19. Transferability
This permit shall not be reassigned or transferred or sold to a new owner, new user, different premises, or a new or
changed operation without approval of the City.
20. Property Rights
This permit does not convey any property rights in either real or personal property, or any exclusive privileges, nor
does it authorize any injury to private property or any invasion of personal rights, nor any infringement of Federal,
State or local laws or regulations.
21. Severability
The provisions of this permit are severable and, if any provision of this permit or the application of any provision of
this permit to any circumstance is held invalid, the application of such provision to other circumstances and the
remainder of this permit shall not be affected thereby.
22. Permit Modification, Revocation, Termination
This permit may be modified, revoked and reissued or terminated with cause in accordance to the requirements of
the City of Salisbury Sewer Use Ordinance and North Carolina General Statute or implementing regulations.
SIU CODE: HIT
IUP No. 0026
Page 12 of 17

PART II
General Conditions
23. Re -Application for Permit Renewal
The permittee is responsible for filing an application for re -issuance of this permit at least 90 days prior to its
expiration date.
24. Dilution Prohibition
The permittee shall not increase the use of potable or process water or in any other way attempt to dilute the
discharge as a partial or complete substitute for adequate treatment to achieve compliance with the limitations
contained in this permit.
25. Reports of Changed Conditions
The permittee shall give notice to the City of any planned significant changes to the permittee's operations or
system, which might alter the nature, quality, or volume of its wastewater at least 90 days before the change. The
permittee shall not begin the changes until receiving written approval from the City. Also see Part II, Section 30 of
this permit for additional reporting requirements for spill/slug issues.
Significant changes may include but are not limited to:
(a) increases or decrease to production;
(b) increases in discharge of previously reported pollutants;
(c) discharge of pollutants not previously reported to the City;
(d) new or changed product lines;
(e) new or changed manufacturing processes and/or chemicals; or
(f) new or changed customers.
26. Construction
No construction of pretreatment facilities or additions thereto shall be begun until Final Plans and Specifications
have been submitted to the City and written approval and an Authorization to Construct (A to C) have been issued.
27. Reopener
This permit shall be modified or, alternatively, revoked and reissued to comply with any applicable effluent standard
or limitation for the control of any pollutant shown to contribute to toxicity of the WWTP effluent or any pollutant
that is otherwise limited by the POTW discharge permit. The permit as modified or reissued under this paragraph
may also contain any other requirements of State or Federal pretreatment regulations then applicable.
28. Categorical Reopener
This permit shall be modified, or alternatively, revoked and reissued, to comply with any applicable effluent
standard or limitation issued or approved under Sections 302(b)(2)(C) and (D), 304(b)(2), and 307(a)(2) of the Clean
Water Act, if the effluent standard or limitation so issued or approved:
1) contains different conditions or is otherwise more stringent than any effluent limitation in this permit; or
2) controls any pollutant not limited in this permit.
The permit as modified or reissued under this paragraph shall also contain any other requirements of the Act then
applicable.
29. General Prohibitive Standards
The permittee shall comply with the general prohibitive discharge standards in 40 CFR 403.5 (a) and (b) of the
Federal pretreatment regulations.
SIU CODE: HIT
IUP No. 0026
Page 13 of 17

PART II
General Conditions
30. Reports of Potential Problems
The permittee shall notify the Environmental Services Division immediately by telephone of all discharges that
could cause problems to the POTW, including any slug loadings as defined by 40 CFR 403.5 (b). The permittee
shall provide protection from accidental and slug discharges of prohibited materials and other substances regulated
by this permit. The permittee shall also notify the POTW which it's facility discharges to and Environmental
Services Division immediately of any changes at its facility affecting the potential for spills and other accidental
discharge, discharge of a non -routine, episodic nature, a non -customary batch discharge, or a slug load as defined in
the Sewer Use Ordinance. If the permittee experiences such a discharge, the permittee shall inform the
Environmental Services Division immediately upon the first awareness of the commencement of the discharge.
Notification shall include location of the discharge, type of waste, concentration, and volume - if known - and
corrective actions taken by the permittee. A written follow-up report thereof shall be filed by the permittee within
five (5) days, unless waived by the Environmental Services Division.
Additionally, the permittee in the event of the release of a slug discharge which may present a hazard to the public,
to municipal employees, or which may do harm to the collection system, treatment facilities or the treatment
process, the discharger must notify by telephone immediately the following persons or agencies until the accidental
spill has been reported:
o City of Salisbury Fire Department 704-638-5351
o Environmental Services Division, Pretreatment Department, 704-638-5375, (8:00am-4:30pm)
o Water / Sewer Maintenance & Construction Division
(Emergencies affecting water or sewer service.) 704-638-5339
o Grant Creek Treatment Train (24 hr.- 7 days/wk) 704-638-5374*
o Town Creek Treatment Train (24 hr.- 7 days/wk) 704-638-5377*
*Notify the municipal treatment train plant operator on duty at the facility into which you are
permitted to discharge. That information is available on the cover page of this permit.
Such notification will not relieve the permittee from any liability, which may be incurred as a result of the discharge,
but failure to notify shall be a violation of this permit and subject to enforcement action, including revocation or
termination of this permit.
SIU CODE: HIT
IUP No. 0026
Page 14 of 17

PART II
General Conditions
31. Signatory Requirements
All reports or information submitted to fulfill the requirements of this permit must be signed and certified by a
ranking and duly -authorized agent of the permittee.
The following certification statement must be included as an integral part of each report listed above under
"Signatory Requirements" and must be signed by the permittee's authorized agent:
"I certify under penalty of law that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the
information submitted. Based on my inquiry of the person or persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I
am aware that there are significant penalties for submitting false information, including the possibility of fine and
imprisonment for knowing violations.
(Signature) (Date)
(Title)
SIU CODE: HIT
It
IUP No. 0026
Page 15 of 17

PART III
Special Conditions
1. Required Slug Control Plan
The permittee shall provide protection from accidental discharges of prohibited materials or other substances
regulated by this permit. The permittee is hereby notified that he shall develop, submit, obtain City approval
of, and implement a written Slug Control Plan within 90 days of the effective date of this permit.
Description of Measure, Activity, Plan, etc.
Required Completion/ Implementation Date
1. Implementation of current and updated Slug/Spill
Control Plan upon POTW approval
Continuous
2. Review and update Slug/Spill Control Plan to assure
continuous effectiveness
Annual update (based on calendar year)
Submit to POTW for approval within 30 days of update
The plan submitted shall include the following measures as necessary to assure protection of the POTW from slug
loads: the construction of containment dikes around pretreatment units, around process units containing liquids, and
chemical storage areas; the rerouting of floor drains in manufacturing areas to a holding area located upstream of the
discharge to the pretreatment unit; and the plugging of floor drains in chemical storage areas, and in other areas as
needed to protect the POTW.
The permittee shall provide updates to the City as required by Part II, Section 30 of this permit. Modifications to the
measures shall be approved by the City prior to installation/ implementation. If a measure fails, Environmental
Services shall be notified within 24 hours.
2. Total Mercury
Beginning January 1, 2021, test method EPA 1631E will be used for mercury monitoring. Laboratories must be
North Carolina certified and able to reach a minimum quantitation level of 1.0 ng/l.
The Permittee shall perform quarterly Mercury monitoring in January, February and March 2021 and submit results
on IDMR form to this office. If the quarterly average indicates total mercury present in the permittee's discharge at
a concentration exceeding 50 ng/L every effort should be made by the permittee to find the source of mercury in
their effluent and submit to this office the findings and corrective actions taken. The permittee will then be required
to perform quarterly Mercury monitoring in July, August and September 2021 and submit results as above.
This permit may be re -opened by the Environmental Services Division to impose a numerical limit for total
mercury.
3. Conditions Affecting WWTP Performance
Should pollutants discharged by the permittee contribute to a degradation of the performance of the POTW, the City
may require the permittee to conduct a treatability study for the suspect pollutant(s). In addition, the City may
reopen and modify this permit as necessary to further regulate any pollutants causing such degradation of
performance.
4. Certified Laboratory Analysis
Pollutant analysis shall be performed by a North Carolina Division of Water Resources Certified Laboratory that is
certified in the analysis of the pollutant in wastewater.
SIU CODE: HIT
IUP No. 0026
Page 16 of 17

PART III
Special Conditions
5. Flow Measurement and Sampling Point Requirements
a) Dischargers subject to Federal categorical mass -based effluent limits, production -based effluent limits, or
Combined Waste stream Formula effluent limits must install and maintain appropriate discharge flow measurement
devices utilizing methods consistent with approved scientific practices to insure the accuracy and reliability of
measurements of the volume of all discharges which are required to be monitored by this permit. Dischargers not
otherwise required to install such discharge flow measurement devices, may be required by the City to install the
devices if, in their judgment, such devices are necessary.
b) The permittee shall maintain appropriate discharge flow measurement devices and methods consistent with
approved scientific practices to ensure the accuracy and reliability of measurements of the volume of monitored
discharges. Devices installed shall be continuous recording flow meter capable of measuring flows with a maximum
deviation of less than 10% from true discharge rates throughout the range of expected discharge volumes. The
devices (and associated flow channels) shall be installed, calibrated and maintained to ensure accuracy. The meter
shall be calibrated at a minimum of once every six months. Modifications to the flow metering equipment shall be
approved by the City prior to installation. If a required flow measurement device fails, Environmental Services shall
be notified within 24 hours. The permittee has 72 hours to return to compliance (and report total water consumption
in the interim).
c) The sampling point and associated sampling equipment (including sampling tubing) shall be properly
maintained at all times.
d) Calibration and documentation of the pH meter is required for all wastewater needing pH adjustment. pH
must be compliant with effluent limits prior to discharge into City sewer. Record of the initial pH and the adjusted
pH shall be documented.
6. Semi -Annual Reports Requirements
hi addition to Part II (D) requirements, the permittee shall take appropriate actions to reduce high levels of Copper and
Molybdenum in their effluent wastewater discharge and implement increased intervals for pretreatment equipment
maintenance/cleaning. Documentation of activities shall be included on each Semi -Annual Report submittal.
SIU CODE: HIT
IUP No. 0026
Page 17 of 17

IUP SYNOPSIS
CITY OF SALISBURY - INDUSTRIAL PRETREATMENT PROGRAM
May 27, 2021
A. IUP Basic Information
Receiving Control Authority & WWTP name :
City of Salisbury WWTP
POTW NPDES # :
NC0023884
IUP Name :
Hitachi Metals North Carolina,
Ltd.
IUP Number :
0026
IUP Effective date :
July 1, 2021
Pipe Numbers, list all
regulated pipes:
01
IUP Expiration date :
June 30, 2026
IUP 40 CFR # (if
applicable) , or N/A:
471 Subpart J
B. IUP Survey & Application form
Enclosed
C. IU Inspection form
Enclosed
D. RATIONALE FOR LIMITATIONS:
As listed on the IUP Effluent Limits Page, PART I Specific Conditions, Section F of
the IUP.
RATIONALE #1:
Review of IU Monitoring Data, with no Over Allocation
situation:
Arsenic monitoring parameter was removed as a permitted limit
of 0.017 Ps/day and changed to a IU monitored parameter due to
all sample analysis results @ less than (<) Laboratory
detection levels for the past 2 years (November 2018 to
present).
Molybdenum self -monitoring parameter added due to sample
analysis detections during City -monitoring LTMP events during
duration of the past 5 year permit cycle.
SIU CODE: HIT PERMIT #0026
Page 1

RATIONALE #2:
Categorical Industrial Limits, with no Over Allocation
situation:
Total Cyanide, Total Copper, and Total Lead: Categorical
Limits- subject to 40 CFR # 471 Subpart J per the following
processes classified as 40 CFR 471.105(e);(h);and(j):
(e) Tumbling, burnishing and cleaning wastewater
(h) Sawing or grinding contact cooling water/and
(j) Mixing wet air pollution control scrubber blowdown
RATIONALE #3a:
Over Allocation Prevention, with IU pollutant reduction: N/A
RATIONALE #3b:
Interim Limits for IU pollutant reduction: N/A
RATIONALE #4:
4.) Other Rationale for Limitations:
The following basis was used for developing IUP Limits.
Flow: Unchanged (flow limit 0.250 mgd): SIU had a daily max
flow of 0.100 mgd in 2020. No exceedance violations in past
5 year permit cycle and historical data was reviewed.
pH and Temp: per SUO
Oil & Grease: Unchanged (200 mg/1 permit limit) -
Historical Data/HWA reviewed. 2 year concentration average
@ 45 mg/1
BOD: Unchanged (Permitted
Data/HWA reviewed.
COD: Unchanged (Permitted
Data/HWA reviewed.
TSS: Unchanged (Permitted
Data/HWA reviewed.
TKN: Unchanged (Permitted
Data/HWA reviewed.
Total Chromium: Unchanged
limit @ 500.4 lbs/day)-Historical
limit @ 1001 lbs/day)-Historical
limit @ 500.4 lbs/day)-Historical
limit @ 67 lbs/day)-Historical
(Permitted limit @.710 lbs/day)
due to 2 year data average of 0.060 lbs/day.
Total Nickel: Unchanged (Permitted limit @ .160 lbs/day)
due to 2 year data average of .0042 lbs/day.
Zinc: Unchanged (.292 lbs/day) -- due to 2 year data
average of .0359 lbs/day.
SIU CODE: HIT
PERMIT #0026
Page 2

RATIONALE #5:
No Limit needed or assigned in an IUP:
The following pollutants were not assigned numerical limits in this IUP because the
loadings for these pollutants from this IU were above the SUO Local Limits, but less
than 5% of the MAHL. The loading of these pollutants from this IU is considered
insignificant at this time.
Pollutant
Avg SIU
mg/1
Avg SIU
lbs/day
% of MAHL
5% MAHL,
lbs/day
Ammonia
Nitrogen
9.38
3.44
.99
347.31
Molybdenum
3.725
1.41
79.8
1.7597
Mercury
.000069
.00002
1.14
.001757
SIU CODE: HIT
PERMIT #0026
Page 3

Sa/isk'gIlwan
SALISBURY-ROWAN UTILITIES
ENVIRONMENTAL SERVICES DIVISION
INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
The information provided on this questionnaire serves two functions:
1. To determine if your facility is in need of a Significant Industrial User (SIU) Industrial User Pretreatment
Permit (IUP) for the discharge of wastewater to the City of Salisbury's Publicly Owned Treatment Works
(POTW) sanitary sewer system.
2. If a SIU IUP is required, this survey shall serve as the application for that IUP and the information will be used
to issue the IUP.
PLEASE REFER TO THE GUIDANCE FOR COMPLETING THE INDUSTRIAL USER SURVEY/APPLICATION
INSTRUCTIONS, INCLUDED WITH THIS APPLICATION.
Submit this application along with a non-refundable application fee of $250.00 to:
Salisbury -Rowan Utilities
Environmental Services Division
1915 Grubb Ferry Road
Salisbury, N.C. 28144-1248
Attn.: Pretreatment Program Coordinator
Your permit application cannot be processed until all analytical results from a North Carolina certified laboratory are
submitted. A respresentative list of N.C. certified laboratories may be obtained from the Pretreatment Program
Coordinator if not supplied with this application. The applicant is responsible for verifying that the laboratory's North
Carolina certification is current before contracting for analytical work.
Unless instructed otherwise, each applicant must submit the results of the following effluent analyses:
BOD Nitrate+Nitrite
pH* Total Arsenic
Temperature* Total Cadmium
Total Phosphorus Total Chromium
Total Suspended Solids Total Copper
Total Kjeldahl Nitrogen Total Lead
Chemical Oxygen Demand Total Mercury
Cyanide Total Nickel
Ammonia Total Silver
Total Zinc
Analyses indicated by "*" must be performed on grab samples. The remaining analyses listed above must be
performed on a 1 hr. x 24 hr. composite sample preserved according to EPA protocols. Analytical reports must be
accompanied by sample preservation and chain -of -custody documentation. Additional sampling and analysis may be
required, depending on the characteristics of the discharge, the nature of the process, and whether your facility's
discharge is subject to Federal Categorical Standards.

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
STATUS of APPLICANT / APPLICATION - PLEASE CHECK ONE
[ ] New Permit for Proposed Discharge
Anticipated Date of initial process wastewater discharge
[ ] Existing Unpermitted Discharge
[ X ] Permit Renewal for Existing SIU Permit, existing non-SIU permit, or other written permission from POTW.
Note If this application requests a greater amount of wastewater discharge [flow], a greater amount of
pollutant discharge or a discharge of different pollutants than specified in the last wastewater permit
application for this facility, or any other significant changes, please indicate this as needed in the applicable
Questions, especially Questions A8 and E7.
Note to Signing Official: In accordance with Title 40 of the Code of Federal Regulations Part 403.14, information and
data provided in this questionnaire which identifies the content, volume, and frequency of discharge shall be available
to the public without restriction. Requests for confidential treatment of other Information shall be govemed by
procedures specified in 40 CFR Part 2.
This is to be signed by the Authorized Representative of your firm, as defined in 40 CFR Part 403.12 (I) and Section
25-1 of the Code of the City of Salisbury, after adequate completion of this form and review of the information by the
signing representative.
I, Avery Moore (print name), Director of Manufacturing (print title),
certify under penalty of law that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons who manage the system,
or those persons directly responsible for gathering the information submitted is, to the best of my knowledge
and belief, accurate and complete. I am an authorized representative of the user and am authorized to
execute this certification on behalf of the user. I am aware that there are significant penalties for submitting
false information in violation of this certification, including the possibility of fines and/or imprisonment.
I also certify that I have completed the necessary notification as required by the POTW to document my
qualification as an Authorized Representative as set forth in 40 CFR Part 403.12 (1) and Section 25-1 of the
Code of the City of Salisbury.
3/30/2021
ClArcwr ef "i1b-tee
Date Sign ure of Representative
(Seal, if applicable)
IUP Application/Industrial Waste Survey 2012 Page 2 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
SECTION A — GENERAL INFORMATION
1. For the production or manufacturing facility for which this application is being completed:
Facility name
Hitachi Metals North Carolina, Ltd.
Physical address
1 Hitachi Metals Drive
China Grove NC 28023
Mailing address (if different)
General Telephone Number
704-855-2800
General Fax Number
704-855-2750
Website
2. If applicable, general information about the corporate office, parent company, etc. [ J N/A
Company name
Physical address
Mailing address (if different)
General Telephone Number
General Fax Number
Website
3. Primary Authorized Representative authorized to represent this firm in official dealings with the Publicly
Owned Treatment Works (POTW).
Name
Avery Moore
Title
Director of Manufacturing
Telephone/Cell/Fax
704-855-2800 Ext. 194 / 704-433-7600
Email
Avery.Moore©hitmet.com
Primary work
location:
Facility Office
Other — List address here:
_X_ _Corporate
4. Altemate Authorized Contact for when the Primary Authorized Representative is not available.
Name
Jeff Goodman
Title
Maintenance Manager
Telephone/Cell/Fax
704-855-2800 Ext. 191
Email
[e-mail]
Primary work
location:
Facility _Corporate Office
Other — List address here:
_X_
5. On -Site Contact. If neither person identified in items 3 and 4 above are located at the production or
manufacturing facility for which this application is being completed provide an on -site contact person
available to answer questions regarding statements made on this survey as well as conduct a walkthrough
of the facility:
Name
Nelly Cable
Title
HR Manager
Telephone/Cell/Fax
704-855-2800 Ext.143
Email
[e-mail]
IUP Application/Industrial Waste Survey 2012
Page 3 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
SECTION A — GENERAL INFORMATION - continued
6. Identify the general type of manufacturing, production and/or service(s) conducted at the site (i.e.
electroplating, printing, painting, food processing, warehousing, meat packing, machine shop, etc.).
Greater detail to be provided in question A. 7.
Ceramic Ferrite Magnet Manufacturing
7. Provide a detailed narrative description of the manufacturing/production process(es) and/or service activities
identified in question A. 6. and conducted at the facility identified in question A. 1.
Raw Materials Mixing, Calcining, Fine Milling, Pressing, Sintering, Grinding, Inspection and Warehouse.
8. Are any process changes or expansions planned during the next five years? [ ] Yes [ X ] No
If yes, describe the nature of the planned changes or expansions. As needed, clarify if answers to other
application questions are for before or after the change/expansion. If the facility has an existing permit,
indicate if these changes could or will result in the facility requesting changes to their existing permit.
9. List the Standard Industrial Classification Number(s) (SIC #) or North American Industry Classification
System (NAICS) codes for your facility. If listing more than one code, indicate the percentage of production.
SIC/NAICS code:
Percenta.e of .roduction
SIC Code:3264
10. In what month and year were the facility's operation(s) at this location (as specified in A. 7. above)
established and under what name?
Facility Name
Month
Year
Hitachi Metals of North Carolina
October
1989
11. Has your facility undergone any changes in licensed ownership since the date noted in question A. 10?
[ ] Yes [ X ] No If yes, complete table.
Facili Name
Month
Year
IUP Application/Industrial Waste Survey 2012 Page 4 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
Section B — Flow Diagram/Schematics, Site Layout, and Pretreatment System Flow Diagram
[ See the Guidance Document for Completing the Industrial User Wastewater Survey and Discharge Permit
Application included with this application.
PRODUCTION/PROCESS SCHEMATIC FLOW DIAGRAM (REQUIRED)
J / •. taa
..•,,, ,!
11....lomnIkoe of
1,11,
,
SIU CODE: Lin
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Perron #0026
Page 3 of 16
IUP Application/Industrial Waste Survey 2012 Page 5 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
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Permit #0026
Page 3 of 16
IUP Application/Industrial Waste Survey 2012 Page 6 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
Section B — Flow Diagram/Schematics, Site Layout, and Pretreatment System Flow Diagram
[ See the Guidance Document for Completing the Industrial User Wastewater Survey and Discharge Permit
Application included with this application.
PLANT SITE LAYOUT (REQUIRED)
4
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MY £ IatI p.nee erer n.ewery,r.
'toaster.
HIrJE FAcILRT
SIU CODE: HIT
Permit #0026
Page 3 of 16
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•
IUP Application/Industrial Waste Survey 2012 Page 7 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
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IUP Application/Industrial Waste Survey 2012 Page 8 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
Section B — Flow Diagram/Schematics, Site Layout, and Pretreatment System Flow Diagram
[ See the Guidance Document for Completing the Industrial User Wastewater Survey and Discharge Permit
Application included with this application.
WASTEWATER PRETREATMENT SYSTEM FLOW DIAGRAM (IF APPLICABLE)
IUP Application/Industrial Waste Survey 2012 Page 9 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
}
SIU CODE: HIT
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Permit #0026
Page 3 of 16
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IUP Application/Industrial Waste Survey 2012 Page 10 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
SECTION C — FACILITY OPERATION CHARACTERISTICS
Office/Administrative Staff
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
# Em Ioyees
12
12
12
12
12
Start/End Time
8:00-4:30
8:00-4:30
8:00-4:30
8:00-4:30
8:00-4:30
Production Staff
Monday
Tuesday IWednesday
Thursday
Friday
Saturda
y
Sunday
1st Shift
# Employees
24
24
24
24
24
24
24
Start Time
6:00am
6:00am
6:00am
6:00am
6:00am
6:00am
6:00am
End Time
6:00pm
6:00pm
6:00pm
6:00pm
6:00pm
6:00pm
6:00pm
2nd Shift
# Employees
24
24
24
24
24
24
24
Start Time
6:00pm
6:00pm
6:00pm
6:00pm
6:00pm
6:00pm
6:00pm
6:00am
End Time
6:00am
6:00am
6:00am
6:00am
6:00am
6:00am
3' Shift
# Employees
Start Time
EndTime
Shift Activities
SHIFT
DESCRIPTION OF SHIFT ACTIVITIES
Monday
1"
6:O0am-6:00pm Office 8:OOam-4:30pm
2nd
6:OOpm-6:OOam
3rd
Tuesday
1 s'
6:OOam-6:OOpm Office 8:OOam-4:30pm
2nd
6:OOpm-6:OOam
3rd
Wednesday
1st
6:OOam-6:OOpm Office 8:OOam-4:30pm
2nd
6:OOpm-6:OOam
3rd
Thursday
1st
6:OOam-6:OOpm Office 8:OOam-4:30pm
2nd
6:OOpm-6:OOam
3rd
Friday
15'
6:OOam-6:OOpm Office 8:OOam-4:30pm
2nd
6:OOpm-6:OOam
3rd
Saturday
151
6:OOam-6:OOpm
2nd
6:OOpm-6:OOam
3rd
Sunday
151
6:OOam-6:OOpm
2nd
6:OOpm-6:OOam
3rd
IUP Application/industrial Waste Survey 2012
Page 11 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
SECTION D - PROCESS INFORMATION
NOTE: The following information must be completed for each product line. Please make copies of this page if
necessary.
Information revealed in this section may be held confidential and proprietary under 40 CFR 403.14 at the request of
the Industrial User and the approval of the POTW. The request for confidentiality must be made at the time of
the initial submission of the application. Should such a request be made and accepted in compliance with
Section 25-207 of the Code of the City of Salisbury these page(s) will be removed before review by any non -
regulatory personnel.
1. Principal product(s) produced:
Ceramic Ferrite Magnets
2. Raw materials and process additives used:
Iron Oxide
Strontium Carbonate
Lanthanum Oxide
Cobalt oxide
Boric Acid
Chromium
Aluminum
Ammonia bicarbonate
Silica
Calcium
Water
3. Maximum and average production rate of this particular product line (please specify units being reported):
Average Production Rate
Maximum Production Rate
Units
1 lmillion pcs 400metric tons
18Millionpcs 750metrictons
Metric Tons
4. The production process is [ ] Batch [ X ] Continuous
If batch, please enter the average number of batches per 24 hours. [
If both, please enter % or production
[ 100 %] Batch [ 100 %] Continuous
5. Days and hours of operation for this product line: From: 6:00am to 6:00pm
6. Days and Hours of discharge for this product line: From: 6:00am to 6:00pm
7. Is production subject to seasonal variation? [ ] Yes [ X ] No
If yes, briefly describe the seasonal production cycles:
IUP Application/Industrial Waste Survey 2012 Page 12 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
SECTION E — WATER USE AND WASTEWATER DISCHARGE INFORMATION
1. Please indicate source(s) of water used at your facility:
Source Type
Check One
If yes,...
Well
[ ] Yes [ X ] No
How many are there?
How many are in use at this time?
City
Surface Water
Other
[ X ] Yes [ ] No
List all Account numbers:
7500676-7000312
[ ] Yes [ X ] No
Identify the source:
( ] Yes [ X ] No
Explain:
2. Does this facility provide any treatment to the incoming water to improve the water quality prior to its use in
the facility, (i.e. deionization, reverse osmosis, ultra filtration, pH adjustment, etc.)? [ ] Yes [X] No
If yes, complete table.
Treatment Process
Chemicals Used Wastewater Generated and Volume d
3. This facility uses water for the following:
(Please record "n/a" if the application/use does not apply to the operations at your facility.)
Type of Application /Use
Detailed Description of
Applicable Operation(s)
and/or Equipment
Maximum
Volume
Used
(gallons/day)
Average
Volume
Used
(gallons/day)
[E]stimated
or
[M]easured
Process
Mixing/milling
140000
42110
[ IE [ X ] M
Water Into Product
0
[ ] E [ ] M
Process Related Facility/Equipment
Washdown*
Grinders. Goes to recycled
water return.
1000
100
[X] E [ ] M
Process Contact Cooling or Warming
Water
Cooling Towers
5000
2000
[X] E [ ] M
Process Related Air-Poltution Control
Unit
Scrubbers, Recycled water
0
0
[ ] E 1 ] M
Process Related Employee Showers
Not required, optional
100
10
[ X ] E [ ] M
Lab
Nothing
0
0
[] E 1] M
Maintenance Shop
Only Hand wash sink
100
100
[X] E [ ] M
Boilers (Please specify if live and/or dry
steam is used.)
No, Slurry heaters and
water only evaporates
500
200
[ X ] E [ ]
M
Backwash Water
No
0
0
[ 1 E [ ] M
Pump Sealant Water
No
0
0
[ ] E [ ] M
General Facility/Equipment Washdown'
Floor scrubber
300
100
[ ] E [ ] M
Other non -contact water uses: boilers;
non -contact cooling/warming water,
general air conditioning, cooling towers,
chillers, HVAC, etc.
Cooling Towers
5500
1500
[X] E [ ] M
Domestic (e.g. restroom(s), non -process
related employee showers, cafeteria,
kitchen, breakroom etc.)
Sinks, showers
4000
1000
[X] E 1 ] M
Other, please describe
[ ] E [ ] M
Total
No Change
156500
47120
'Please document clean up schedules in Shift activities in Section C.
Floors are cleaned by floor scrubber once per day or several times per week.
IUP Application/Industrial Waste Survey 2012
Page 13 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
SECTION E — WATER USE AND WASTEWATER DISCHARGE INFORMATION (continued)
4. The facility generates wastewater from the following areas and that water is discharged where
If the source of wastewater discharged does not exist at your facility record "n/a". If there is no discharge from the
applicable source, record "no discharge".
Source of Wastewater
Wastewater is
Discharged
To Where
Pretreated?
Volume
Discharged
(gallons/day)
Estimated (E) or
Measured (M)
a. Process
PIPE 01
jX ] yes [] no
40333
[ ] E j x ] M
b. Water Into Product
IX ] no
[_j E [ ] M
c . Process Related
Facility/Equipment
Washdown*
d. Process Contact Cooling
or Warming Water
Settled and evaporated
PIPE 01
_[_]_yes
[ ] yes [ X ] no
[ 1 E [ 1 M
[ ]E Ix) M
[ X] yes [ ] no
[ X ] yes [ ] no
[ ] yes [ X ] no
40333
e.Process Related Air-
Pollution Control Unit
PIPE 01
[ 1 E [ x ] M
f. Process Related
Employee Showers
[ 1 E 1 1 M
g.Lab
[ ] yes [ X ] no
[ JE 1 ] M
h.Maintenance Shop
[ ] yes [ X ] no
[ ] E [_] M
i. Backwash Water
[ ] yes [ X ] no
[ ] E [ 1 M
j. Pump Sealant Water
[ ]_yes [ X ] no
[ ] E [ 1 M
k. General
Facility/Equipment
Washdown'
[ ) yes [ X ] no
[ 1 E [ ] M
I. Other non -contact water
uses: boilers; non -contact
cooling/warming water,
general air conditioning,
cooling towers, chillers,
HVAC, etc.
PIPE 01
[ X ] yes [ ] no
Discharged to
scrubber
tanks, then
discharged to
POTW
[ ] E [ ] M
m. Domestic (e.g.
restroom(s), non -process
related employee
showers, cafeteria,
kitchen, breakroom etc.)
PIPE 01
[ 1 yes [ X ] no
1000
[X] E [ ] M
n.Groundwater/Remediated
Groundwater
[ ] yes [XI no
[ 1 E [ 1 M
o.Storm Water Runoff
Outfall
[X] no
[ 1 E [ ] M
p. Tank Bottoms
___L_Lyes
[ ] yes [X] no
1 ] E [ 1 M
q.Other, please specify
[ ] yes [X] no
[ 1 E [ l M
r. Total Discharged to
POTW
PIPE 01
41333
Please document clean up schedules in Shift activities in Section C.
Identify the daily maximum flow limit requested. Please explain any differences between the requested flow
limit and actual flows listed in E. 4.
Requested Daily Maximum Flow Limit, gpd:
Requested Monthly Average Flow Limit, gpd:
Explanation:
No Change .250MGD
No Change .200MGD
No Change needed to permit
IUP Application/Industrial Waste Survey 2012
Page 14 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
SECTION F — CHEMICALS, POLLUTANTS, WASTES
1. Complete Checklist for Priority, Conventional, Non -Conventional, and Other Pollutants.
All chemicals require that TWO columns are checked
Chemical
Abstract
Present in
Absent in
Concentration
Chemical Name
Number
[CAS#] _
Present
at Facility
Absent
at Facility
Discharge to
POTW
Discharge to
POTW
in Discharge,
(mg/I)
Acid Extractable Organic Compounds (EPA Method 625
2-Chlorophenol
95-57-8
X
X
2,4-Dichlorophenol
120-83-2
X
X
2,4-Dimethylphenol
105-67-9
X
X
2,4-Dinitrophenol
51-28-5
X
X
2-Methyl-4,6-dinitrophenol
534-52-1
X
X
4-Chloro-3-methylphenol
59-50-7
X
X
2-Nitrophenol
88-75-5
X
X
4-Nitrophenol
100-02-7
X
X
Pentachlorophenol
87-86-5
X
X
Phenol
108-95-2
X
X
2,4,6-Trichlorophenol
88-06-2
X
X
Base Neutral Organic Compounds (EPA Method 625
1,2,4-Trichlorobenzene
120-82-1
X
X
1,2-Dichlorobenzene
95-50-1
X
X
1,2-Diphenylhydrazine
122-66-7
X
X
1,3-Dichlorobenzene
541-73-1
X
X
1,4-Dichlorobenzene
106-46-7
X
X
2,4-Dinitrotoluene
121-14-2
X
X
2,6-Dinitrotoluene
606-20-2
X
X
2-Chloronaphthalene
91-58-7
X
X
3,3-Dichlorobenzidine
91-94-1
X
X
4-Bromophenyl phenyl ether
101-55-3
X
X
4-Chlorophenyl phenyl ether
7005-72-3
X
X
Acenaphthene
83-32-9
X
X
Acenaphthylene
208-96-8
X
X
Anthracene
120-12-7
X
X
Benzidine
92-87-5
X
X
Benzo (a) anthracene
56-55-3
X
X
Benzo (a) pyrene
50-32-8
X
X
Benzo (b) fluoranthene
205-99-2
X
X
Benzo (ghi) perylene
191-24-2
X
X
Benzo (k) fluoranthene
207-08-9
X
X
Bis (2-chloroethoxy) methane
111-91-1
X
X
Bis (2-chloroethyl) ether
111-44-4
X
X
Bis (2-chloroisopropyl) ether
102-60-1
X
X
Bis (2-ethylhexyl) phthalate
[DEHP]
117-81-7
X
X
Butyl benzyl phthalate [BBP]
85-68-7
X
X
Chrysene
218-01-9
X
X
Di-n-butyl phthalate [DBP]
84-74-2
X
X
Di-n-octyl phthalate [DOP]
117-84-0
X
X
IUP Application/Industrial Waste Survey 2012
Page 15 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
SECTION F — CHEMICALS, POLLUTANTS, WASTES (continued)
All chemicals require that TWO columns are ch
Chemical
Abstract
Present in
Absent in
Concentration
Chemical Name
Number
[CAS#]
Present
at Facility
Absent
at Facility
Discharge to
POTW
Discharge to
POTW
in Discharge,
(mg/I)
ase Neutral Organic Compounds (continued
Dibenzo (a,h) anthracene
53-70-3
X
X
Diethyl phthalate [DEP]
84-66-2
X
X
Dimethyl phthalate [DMP]
131-11-3
X
X
Fluoranthene
206-44-0
X
X
Fluorene
86-73-7
X
X
Hexachlorobenzene
118-74-1
X
X
Hexachlorobutadiene
87-68-3
X
X
Hexachlorocyclopentadiene
77-47-4
X
X
Hexachloroethane
67-72-1
X
X
Indeno (1,2,3-cd) pyrene
193-39-5
X
X
Isophorone
78-59-1
X
X
N-nitroso-di-n-propylamine
621-64-7
X
X
N-nitrosodimethylamine
62-75-9
X
X
N-nitrosodiphenylamine
86-30-6
X
X
Naphthalene
91-20-3
X
X
Nitrobenzene
98-95-3
X
X
Phenanthrene
85-01-8
X
X
Pyrene
129-00-0
X
X
etais
Aluminum
X
X
Antimony
7440-36-0
X
X
Arsenic
7440-38-2
X
X
<.005mg/I
Beryllium
7440-41-7
X
X
Cadmium
7440-43-9
X
X
X
Chromium
7440-47-3
X
X
.263mg/L
Copper
7440-50-8
X
X
.286mg/L
Lead
7439-92-1
X
X
<.005mg/L
Mercury
7439-97-6
X
X
1.62e-5mg/L
Molybdenum
7439-98-7
X
X
3.38mg/L
Nickel
7440-02-0
X
X
.0278ug/L
Selenium
7782-49-2
X
X
Silver
7440-22-4
X
X
Thallium
7440-28-0
X
X
Zinc
7440-66-6
X
X
.315ug/L
Other Inorganic Pollutants
Barium
7440-39-3
X
X
Chloride
X
X
Cyanide
57-12-5
X
X
<0.008mg/I
Fluoride
X
X
IUP Application/Industrial Waste Survey 2012
Page 16 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
SECTION E — SECTION F — CHEMICALS, POLLUTANTS, WASTES (continued)
All chemicals require that TWO columns are checked
Chemical
Abstract
Present in
Absent in
Concentration
Chemical Name
Number
[CAS#]
Present
at Facility
Absent
at Facility
Discharge to
POTW
Discharge to
POTW
in Discharge,
(mg/I)
Purgeable Volatile Organic Compounds FVOCs1 (EPA Method 624
1,1,1-Trichloroethane
71-55-6
X
X
1,1,2,2-Tetrachloroethane
79-34-5
X
X
1,1,2-Trichloroethane
79-00-5
X
X
1,1-Dichloroethane
75-34-3
X
X
1,1-Dichloroethylene
75-35-4
X
X
1,2-Dichloroethane
107-06-2
X
X
1,2-Dichloropropane
78-87-5
X
X
2-Chloroethyl vinyl ether
110-75-8
X
X
Acrolein
107-02-8
X
X
Acrylonitrile
107-13-1
X
X
Benzene
71-43-2
X
X
Bromodichloromethane
75-27-4
X
X
Bromoform
75-25-2
X
X
Bromomethane
74-83-9
X
X
Carbon tetrachloride
56-23-5
X
X
Chlorobenzene
108-90-7
X
X
Chloroethane
75-00-3
X
X
Chloroform
67-66-3
X
X
Chloromethane
74-87-3
X
X
Cis 1,3-Dichloropropene
X
X
Dibromochloromethane
594-18-3
X
X
Ethylbenzene
100-41-4
X
X
Methylene chloride
75-09-2
X
X
Tetrachloroethylene
127-18-4
X
X
Toluene
108-88-3
X
X
Trans 1,3-Dichloropropene
X
X
Trans-1,2-Dichloroethylene
156-60-5
X
X
Trichloroethylene
79-01-6
X
X
Trichlorofluoromethane
X
X
Vinyl chloride
75-01-4
X
X
Other Pollutants of Concern
Xylene
X
X
BOD
X
X
1696mg/I
TSS
X
X
<2.6mg/I
Ammonia
X
X
13.2mg/I
Total Phosphorus
X
X
Total Nitrogen
X
X
16.6mg/I
Oil & Grease
X
X
122.5mg/I
range of Ph
X
X
6.0-10.0
Act 7.38S.U.
IUP Application/Industrial Waste Survey 2012
Page 17 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
SECTION F — CHEMICALS, POLLUTANTS, WASTES (continued)
2. If any wastewater analyses have been performed on the wastewater discharge(s) from your facilities, please
attach to this survey a copy of the lab report, chain of custodies and location of where the samples were
taken for the most recent sampling date. Do not attach analyses performed by the POTW or analytical
data already delivered to the POTW.
3. Does your facility complete a Toxic Release Inventory? [ ] Yes [ X ] No
If yes, most recent copy attached OR POTW already has
4. Please list boiler and cooling tower treatment additives or MSD sheets and dosaoe rates for each.
Type of Boiler or
Cooling Unit
Treatment Additive Name
Purpose of Additive
Dosage, with units
Cooling Towers
Seltect 414
Inhibitor
360s/min
Bellacid 325
Biocide
360s/min
Selcide 797
Liquid Bromine
360s/min
5. Do you have any storage tank(s) at your facility? I X 1 Yes I 1 No
If yes, complete the chart below
Tank ID
[I]nside or
[O]utside
[A]bove or
[B]elow
Ground
Volume
(in
gallons)
Contents
Associated with
[P]rocess;
[W]astewater
treatment;
[G]roundwater
remediation;
Spill
Containment
Devices
Seltect 414
1
A
50
Seltect 414
Process CT
Yes
Bellacid 325
I
A
50
Bellacid 325
Process CT
Yes
Selcide 797
1
A
50
Selcide 797
Process CT
Yes
6. Are any liquid wastes or sludges (i.e. acids, alkalies, heavy metal sludges, inks, dyes, oil, grease, organic
compounds, paints, pesticides, plating wastes, pretreatment sludges, solvents, thinners, waste product, etc.)
from this firm disposed of by means other than discharge to the sewer system? [ X ] Yes [ ] No
If yes , please complete the following:
Nature of
hauled
Waste and date
Last hauled
Waste hauler's
name,
EPA ID# and
address
Treatment Facility's
Name, EPA ID# and
address
Disposal facility's
Name, EPA ID# and
Address
Est. Gallons or
Pounds per
Year hauled off
Process Sludge
Concord Industrial
Concord
Brown and Ferris
200 metric tons
Oil & Sludge
Concord Industrial
Concord
Brown and Ferris
15 metric tons
Oil
Hazmat
Charlotte
Hazmat
48000 gal
7. Is this facility a small quantity, large quantity, or conditionally exempt Hazardous Waste Generator?
[ ] Small Quantity [ ] Large Quantity [ ] Conditionally Exempt [ X ] Not Applicable
Facility's EPA Hazardous Waste Generator ID#:
Waste Codes:
IUP Application/Industrial Waste Survey 2012 Page 18 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
SECTION G — WASTEWATER TREATMENT, FLOW, AND SAMPLING EQUIPMENT
1. Is the wastewater generated by this facility treated prior to discharge to the POTW? [ X ] Yes [ ] No
If yes, please complete the chart below. If a particular pretreatment unit only treats part of the wastewater,
indicate this below and in the diagram required by Section B.
Pretreatment Unit
mes [N]o
Additional Information
Chemicals Used
Activated Carbon
Air Stripping
Y
Magnesium Hydroxide
Biological Treatment
Activated Sludge
Rotating Biological Contactor (RBC)
Trickling Filter
Sequencing Batch Reactor (SBR)
Other
Chemical Precipitation
Chlorination, for
disinfection
Cyanide Destruction
Defoaming Agents
Dissolved Air Floatation
(DAF)
list all individual units of DAF here
equalization
pH adjustment
chemical precipitation
Other
Flow equalization, aerated
Size(gallons)
Before After Pretreatment
Flow equalization,
not aerated
Size(gallons)
Before After Pretreatment
Grease and Oil Removal
for employee cafeteria,
kitchen, breakroom, etc.
Grease Trap, Size
Oil Water Separator
Other
Grease and Oil Removal
for food manufacturing
process wastewater
Grease Trap, Size
Oil Water Separator
Other
Grease and Oil Removal
for non-food
manufacturing process
wastewater
Grease Trap, Size
Oil Water Separator
_X_
Other
Heat
Reclamation/Exchange
Ion Exchange (for
wastewater treatment)
Neutralization, pH
adjustment
Y
Magnesium Hydroxide
Ozonation
Reverse Osmosis (for
wastewater treatment)
Septic Tank
Silver Recovery
Solids Separation,
Clarification, Dewatering,
Removal, etc.
Belt Press Centrifugation
Clarification Cyclone
Filter Press Filtration
Flocculation Grit Removal
Microfiltration
Nanofiltration Screening
X_Sedimentation Septic Tank
Ultrafiltration
Other
Solvent Separation
Spill protection
Y
SPCC
IUP Application/Industrial Waste Survey 2012
Page 19 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
SECTION G - WASTEWATER TREATMENT, FLOW, AND SAMPLING EQUIPMENT (continued)
2 Describe wastewater flow measuring methods and/or equipment. If applicable, list the meter's current
interval, flow volume, pulse frequency and reporting units:
Hach FL901 Ultrasonic How Meter Continuous Pulse in gallons.
Endress Hauser PH Meter - PH Continuous
Oakton PH and temp meter - PH and temp Celsius
3. List procedures employed to ensure the accuracy of flow measurement method/equipment.
Frequency of Cleaning:
Quarterly or as needed
Calibration method:
calibration performed by:
Frazier Engineering
Training/credentials of calibration staff:
Date of most recent calibration:
10/12/2020
Copy of Calibration Certificate
POTW already has _X_
OR
Copy attached
Describe the sampling method and associated equipment utilized at the facility. Identify staff or contract lab
responsible for sampling. Describe sampling technician training.
Sampling Equipment/Method:
Self Monitoring/Pace Analytical
Sampling staff:
Avery Moore/Pace Analytical
Training/credentials of sampling staff:
Avery Moore
1UP Application/Industrial Waste Survey 2012 Page 20 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
SECTION H — CATEGORICAL STATUS
Check any products listed below that are manufactured or activities that are performed at this facility:
J40 CFR 467
)40 CFR 427
]40 CFR 461
]40 CFR 431
]40 CFR 407
]40 CFR 408
]40 CFR 458
140 CFR 411
140 CFR 437
]40 CFR 434
]40 CFR 465
)40 CFR 468
140 CFR 405
]40 CFR 469
140 CFR 413
140 CFR 457
]40 CFR 412
]40 CFR 424
]40 CFR 418
140 CFR 464
140 CFR 426
)40 CFR 406
]40 CFR 454
]40 CFR 460
]40 CFR 447
]40 CFR 415
]40 CFR 420
]40 CFR 425
Aluminum Forming
Asbestos Manufacturing
Battery Manufacturing
Builders Paper & Board Mills
[ 140 CFR 432
[ )40 CFR 433
[ ]40 CFR 464
[ 140 CFR 436
Canned & Preserved Fruits & Veg. [ X ]40 CFR 471
Canned & Preserved Seafood
Carbon Black Manufacturing
Cement Manufacturing
Centralized Waste Treatment
Coal Mining
Coil Coating
Copper Forming
Dairy Products Processing
[ )40 CFR 421
)40 CFR 414
]40 CFR 435
]40 CFR 440
]40 CFR 446
140 CFR 443
]40 CFR 455
]40 CFR 419
Electrical, Electronics Components [ 140 CFR 439
Electroplating [ ]40 CFR 422
Explosives Manufacturing [ ]40 CFR 459
Feedlots [ ]40 CFR 463
Ferroalloy Manufacturing [ J40 CFR 466
Fertilizer Manufacturing [ ]40 CFR 430
Foundries, Metal Mold & Casting [ )40 CFR 428
Glass Manufacturing [ )40 CFR 417
Grain Mills [ )40 CFR 423
Gum & Wood Chemical Manufacturing
Hospitals
Ink Formulating
Inorganic Chemical Manufacturing
Iron & Steel Manufacturing
Leather Tanning & Finishing
[ )40 CFR 409
[ )40 CFR 410
[ )40 CFR 429
[ ]40 CFR 442
[X]OTHER
If any are checked, cgntinue with Questions 2 and 3 of this Section
Otherwise, check here and skip to next Section.
Meat Products
Metal Finishing
Metal Molding & Casting
Mineral Mining & Processing
Nonferrous Metal, Form & Powders
Nonferrous Metals Manufacturing
OCPSF
Oil & Gas Extraction
Ore Mining & Dressing
Paint Formulating
Paving & Roofing Materials Mfg.
Pesticide Manufacturing
Petroleum Refining
Pharmaceutical Manufacturing
Phosphate Manufacturing
Photographic Supplies
Plastics Molding & Forming
Porcelain Enameling
Pulp, Paper, & Paperboard
Rubber Manufacturing
Soap & Detergent Manufacturing
Steam Electric Power Generation
Sugar Processing
Textile Mills
Timber Products Processing
Transportation Equipment Cleaning
SUBPARTJ
IUP Application/Industrial Waste Survey 2012 Page 21 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
SECTION H — CATEGORICAL STATUS - continued
2. Is there a discharge from any of the above checked categorical operations to the POTW? [X] Yes [ J No
If Yes, complete table.
Process operation name
40 CFR, subpart,
operations, etc
40 CFR New
Source Date
Date initial
process start-up
Date(s) major
change *
NonFerrous Forming
471SUBPART J
1989
* Date(s) of commencement of construction of any major upgrades, updates, refits, or reinstallations of the
operation since the start-up date.
From the above, is this facility a [ ] New Source [ X ] Existing Source [ ] Unknown
Are there any "dilution" wastestreams that flow through the current/proposed monitoring point?
Yes[ ] No[X)
If Yes, ensure these wastestreams are clearly identified as such in question E,4.
IUP Application/Industrial Waste Survey 2012 Page 22 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
SECTION I — SLUG/SPILL PREVENTION and WASTE MINIMIZATION
Enter employees responsible for notifying the POTW in the event of a spill, bypass, pretreatment facility
upset, or other unusual discharge or problem and employees authorized to close down production if needed,
along with information about training and procedures.
If information is formalized in a Plan of some kind, list Plan Number and page #.
Notification of POTW
Plan Name,
page #
Authority to close
down production
Plan Name,
page #
Designated
Employee(s)
No change to Spill Plan
Training of those
employees
Procedures
How other staff know
when and how to
contact designated
individuals?
Does the facility have measures, equipment, and/or plans to protect the POTW and/or sanitary sewer in the
event of accidental spills, slugs, or other inappropriate discharges)? [ X ] Yes [ ] No
If yes, complete table.
For measures that are formalized in a Plan of some kind (eg., Spill Prevention Control and Countermeasure
Plan, Spill/Slug Control Plan, Toxic Organic Management Plan), list Plan Number and page #.
Note: the POTW may request copies of the identified plans.
Measures to •rotect POTW and/or sanitar sewer
No change to SPCC or SWPC plans
Plan Name and ease #s, if a..licable
3. Does your company have a pollution prevention/waste minimization/recycling/reuse program established, or
have had a pollution prevention or other waste minimization audit conducted? [ X ] Yes [ ] No
If yes, complete Table.
Name of Plan/Audit
Most recent copy
attached
POTW already has copy
ISO 14001:2015 certified (CERT-0106174)
Yes
IUP Application/Industrial Waste Survey 2012 Page 23 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
4. Please check "current", "projected" or "N/A" for all codes below relating to your facility's wastewater
discharge.
N/A Current Projected Code Description
[ ] [ X ] [ ] W13 Improved maintenance scheduling, record keeping, or procedures
[ ] [ X ] [ ] W14 Changed production schedule to minimize equipment and feedstock changeovers
[ X ] [ ] [ ] W19 Other changes in operating practices (please explain)
[ X ] [ ] [ ] W21 Instituted procedures to insure that materials do not stay in inventory beyond shelf life
[ X ] [ ] [ ] W22 Began to test outdated material — continue to use if still effective
[ X ] [ ] [ ] W23 Eliminated shelf -life requirements for stable materials
[ ] [ X ] [ ] W24 Instituted better labeling procedures
[ X ] [ ] [ ] W25 Instituted clearinghouse to exchange materials that would otherwise be discarded
[ ] [ X ] [ ] W29 Other changes in inventory control (please explain) Inventory reduction due to
FIFO and strict ordering practices
[ X ] [ ] [ ] W31 Improved storage or stacking procedures
[ X ] [ ] [ ] W32 Improved procedures for loading, unloading and transfer operations
[ ] [ X ] [ ] W33 Installed overflow alarms, and/or automatic shutoff valves
[ ] [ X ] [ ] W34 Installed secondary containment
[ X ] [ ] [ ] W35 Installed vapor recovery systems
[ ] [ X ] [ ] W36 Implemented inspections or monitoring program of potential spill or leak sources
[ ] [ X ] [ ] W39 Other spill and leak prevention (please explain) SPCC and SWPC Plans
[ X ] [ ] [ ] W41 Increased purity of raw materials
[ X ] [ ] [ ] W42 Substituted raw materials
[ X ] [ ] [ ] W49 Other raw materials modifications (please explain)
[ ] [ X ] [ ] W51 Instituted recirculation within a process
[ X ] [ ] [ ] W52 Modified equipment, layout, and/or piping
[ X ] [ ] [ ] W53 Use of different process catalyst
[ ] [ X ] [ ] W54 Instituted better controls on operating bulk containers to minimize discarding of empty
containers
[ X ] [ ] [ ] W55 Change from small volume containers to bulk containers to minimize discarding of
empty containers
IUP Application/Industrial Waste Survey 2012 Page 24 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
N/A Current Projected Code Description
[ X ] [ ] [ ] W58 Other process modifications (please explain)
[ X ] [ ] [ ] W59 Modified stripping/cleaning equipment
[ X ] [ ] [ ] W60 Changed to mechanical stripping/cleaning devices (from solvents or other materials)
[ X ] [ ] [ ] W61 Changed to aqueous cleaners (from solvents or other materials)
[ X ] [ ] [ ] W62 Reduced the number of solvents used to make waste more amendable to recycling
[ X ] [ ] [ ] W63 Modified containment procedures for cleaning units
[ X ] [ ] [ ] W64 Improved draining procedures
[ X ] [ ] [ ] W66 Modified or installed rinse systems
[ X ] [ ] [ ] W67 Improved rinse equipment design
[ X ] [ ] [ ] W68 Improved rinse equipment operation
[ X ] [ ] [ ] W71 Other cleaning and degreasing operation (please explain)
[ X ] [ ] [ ] W72 Modified spray systems or equipment
[ X ] [ ] [ ] W73 Substituted coating materials used
[ X ] [ ] [ ] W74 Improved application techniques
[ X ] [ ] [ ] W75 Changed from spray to other system
[ X ] [ ] [ ] W78 Other surface preparation and finishing (please explain)
[ X ] [ ] [ ] W81 Changed product specifications
[ X ] [ ] [ ] W82 Modified design or composition of product
[ X ] [ ] [ ] W83 Modified packaging
[ X ] [ ] [ ] W89 Other product modifications (please explain)
[ X ] [ ] [ ] W99 Other (please explain)
IUP Application/Industrial Waste Survey 2012 Page 25 of 26

INDUSTRIAL USER WASTEWATER SURVEY AND DISCHARGE PERMIT APPLICATION
SECTION J - OTHER PERMITS
1. List all environmental control permits currently managed for or by this facility. Examples: air, National
Pollutant Discharge Elimination System (NPDES), Industrial User Permits (IUP), Resources Conservation
and Recovery Act (RCRA), groundwater, storm water, general, non -discharge, and septic tank. Be prepared
to provide the POTW with copies of identified permits and related records.
Permit Type
Permit Number
Issuing Agency
Air Permit
06911 / R07
NCDEQ
IUP
0026
Salisbury -Rowan Utilities
Storm water Permit
NCG070057
NCDEQ
2. With regard to the parent company and all subsidiaries. list all wastewater discharge permits issued to cover
similar operations to those at this facility. Examples: National Pollutant Discharge Elimination System
(NPDES), Industrial User Permits (IUP), groundwater, general, non -discharge, and septic tank. Be prepared
to provide the POTW with copies of identified permits and related records.
Facility and
Location
Permit Type
Permit Number
Issuing Agency
None
3. With regard to the parent company and all subsidiaries, list all environmental permits applied for in the
United States where issuance was denied OR the permit was terminated prior to the expiration date.
Examples: air, NPDES, IUP, RCRA, groundwater storm water, general, non discharge, and septic tank. Be
prepared to provide the POTW with copies of identified permits and related records.
Permit Type
Issuing Agency
Date
Facility Name
and Location
Reason for
Denial/Termination
None
IUP Application/Industrial Waste Survey 2012 Page 26 of 26

CERTIFICATE
OF REGISTRATION
This is to certify that
Hitachi Metals North Carolina, Ltd.
1 Hitachi Metals Drive, China Grove, North Carolina 28023-9461 USA
operates an
Environmental Management System
which complies with the requirements of
ISO 14001:2015
for the following scope of certification
The Manufacture of Ceramic Magnets for Industrial and Automotive Applications.
Certificate No.: CERT-0106174 Original Certification Date: April 22, 2004
File No.: 1500927 Certification Effective Date: October 16, 2020
Issue Date: November 10, 2020 Certificate Expiry Date: October 15, 2023
Heather Mahon
Global Head of Technical Services
SAI Global Assurance
ISO 14001
ACCREDITED
MANAGEMENT SYSTEMS
CEE TI F ICA I ION iiODY
Registered by:
OMISAI Canada Limited (SAI Global), 20 Carlson Court, Suite 200, Toronto, Ontario MAN 7K6 Canada. This registration is subject to the SAI Global
Terms and Conditions for Certification While all due care and skill was exercised in carrying out this assessment, SAI Global accepts responsibility only tor
proven negligence. This certificate remains the property of SAI Global and must be returned to them upon request.
To verify that this cerbficate is current, please refer to the SAI Global On -Line Certification Register:
httns//wWw. samlobal com/en-us/assulance/auditimt and certification/certification remstiig
SAI GLOBAL

INDUSTRIAL PRETREATMENT INSPECTION FORM
Name of Industry: Hitachi Metals, LTD of NC
Address of Industry: 1 Hitachi Metals Drive
China Grove, N.C. 28023
Industry Representatives:
Avery Moore
Tim Harris
POTW Representatives:
Jeff Greer
Mark Monroe
Date of Inspection: June 30, 2020
Purpose of Inspection: Annual X
POTW to which IU discharges Grant Creek Treatment Train
Is SIU currently in SNC? No
IUP # 0026
IUP Expiration Date:
June 30, 2021
Title
Director of Manufacturing
Quality Manager
Title
Pretreatment Program Coordinator
Regulatory Compliance Technician
Time of Inspection
Other (Describe)
NPDES #NC0023884
If yes, for what?
11:00 am
PART I - INITIAL INTERVIEW
Has anything changed since the last inspection cr IUP application in the following:
COMMENTS
Product
Raw Materials Used
Manufacturing processes
Categorical, if applicable
Production Rate
NO
NO
NO
NO
NO ---But IU stated production tonnage has been down slightly.
#Employees: 116 Permanent #Shifts: 13112 hours - 6:00 am - 6:00pm ; 2nd 12 hours - 6:00pm - 6:00 am.
#Days / Week: Facility operates 24 hours per day, 7 days per week
PART II - PLANT TOUR - Visit all areas where wastewater is generated or where there are drains to the POTW.
Plant Tour Section A - PRODUCTION AND STORAGE AREAS
1. Are there floors drains in the production area? YES
Where do they go?
There are trenches located throughout production & storage areas that are used for containment. There are no drains to these trenches,
but they are pumped to the drag tank There are no floor drains in the new production areas in Building #2. Note: All machinery has been
removed from Building #2.
2. Are production areas diked, contained, or otherwise constructed in such a way as to prevent harm to the WWTP, especially from spills
or slugs? YES
Comments:
There are sumps in the basement floor of Building #2 that would require manual pumping to remove spills -no direct connection to POTW
from these sumps. Building # 2 is no longer in service and is mainly used for warehousing.
3. Are there floor drains in the storage area? YES
Where do they go?
Same as #1.
4. Are storage tanks and areas diked, contained, or otheavise constructed in such a way as to prevent harm to the WWTP, especially
from spills or slugs? YES
Same as #1. Oil storage building in SE corner of Building #1 and Building #2 has a recessed floor and no drains.
5. Are process and storage tanks and pipes labeled? YES
IU continuing to upgrade pipe labeling throughout facility
Page 1
pan) 1111701

6. How are off -spec raw materials, and products disposed of?
The off -spec raw materials and products are either reused or sold to NUCOR of Monroe, NC.
Also, IU is recycling some off -spec raw materials in-house.
7. When is the production area cleaned?
Floors are cleaned by floor scrubbers once per day or several times per week
8. Is the wastewater from cleaning the production area discharged to the POTW? NO
90% of cleaning water is now detergent free and the water from scrubbers is emptied into the concrete basin (sludge) adjacent to the drag
tanks between building # 1 & building # 2. POTW receives the water that overflows from the drag tanks. This basin is associated with the
ISO 14001 2015 edition certification. Water evaporates from this and the material is hauled to the landfill. Concrete basin was last cleaned
July 2019.
9. What non -process wastewaters are discharged to POTW?
Domestic and cooling tower water goes through scrubber #1 hefore being discharged to the POTW.
Part II, Section A. Comments:
• Southeastern Labs maintains the chemicals in the cooling towers by performing checks of the chemical levels and replacement
as needed.
• There is an outside building for storage of new and old oil. It is located on the far right side of the main building. The empty
totes for oil are stored inside until they receive new totes. In addition, an oil shed located behind building #2 is being used for
container storage.
• Rare earth magnets ceased production at the end of January 2015.
PART II - Plant Tour Section B- PRETREATMENT SYSTEM
Ask the operator to describe pretreatment system.
1. Does operator seem knowledgeable about the system?
2. Are all units operational?
Units in Building #1 are operational. There is no pretreatment equipment in Building #2.
3. How often does operator / maintenance person check system?
YES
YES
Visual inspection and check at the beginning of each shift by the facility maintenance personnel. Repairs are ordered and performed as
needed. This is part of their daily maintenance checklist which includes monitoring of the raw material storage area.
4. Is there an operator for each shift? YES
Maintenance staff.
5. How and when is sludge disposed of?
On an as needed basis, the trenches around the system and plant are pumped out and cleaned by the SIU. The sludge is put into a concrete
pit outside of Building #2. It is mixed with an absorbent material and then hauled off site by Concord Industrial Service Company, Inc. to
the Allied Waste landfill. The piping under this pit has been plugged. IU also stated the grinding and pressing area are cleaned on an as
needed basis.
6. Is there schedule for preventative maintenance? YES
Grinder recirculation pumps are checked monthly. The system is checked to ensure the water flows properly, but there is no maintenance
required of the system. The system is checked every day and maintenance is performed if needed. There are automatic alarms on the
pumps if there are problems with the system. If these pumps go down, the POTW would receive more water. IU is in process of upgrading
these pumps that incorporate an agitator on suction impellor to prevent sludge from entering pump (IU has changed out approximately
98 % of these pumps at time of inspection).
Part II, Section B. Comments:
The scrubber tanks outside of the building act as the pretreatment system. The gases are precipitated into liquid which forms an acid.
Wastewater entering these tanks is treated with magnesium powder mixed with water which forms magnesium hydroxide in order to adjust
pH. IU has recently conducted an upgrade to their pH probe. If pH is out of range, an audible alarm sounds and an alarm also appears
on a monitoring screen. The solids are settled out. The water goes through a scrubber system then discharged to the POTW when it
overflows the drag tank An oil -water separator is also used and a small amount of water is discharged to the POTW from this treatment.
Page 2

PART II - Plant Tour Section C - SAMPLING POINT(S) AND FLOW MEASUREMENT
(Collect a sample if desired.)
1. Does an outside lab complete sampling?
Research & Analytical Laboratories of Kernersville, NC performs analysis only.
NO If yes, name of lab.
2. If industry completes sampling, ask the industry representative to describe sampling procedures.
The SIU collects samples and fills out COC 's. The contract lab provides the pre -preserved bottles and a rented composite sampler. Sampler
is set up by the SIU. The samples are collected and packed in an iced cooler and picked up by contract lab.
3. Is flow measurement equipment operational? YES
Meter Reading: 79238
4. Is there a calibration log for the flow meter? YES
Part II, Section C Comments:
The flow meter calibration log is typically submitted every six months (January -June reporting period and July —December reporting
period). Calibration is typically performed in April and October. SIU has the means to provide backup power to the flow meter if necessary.
NOTE: Research and Analytical Labs, Inc. performs temperature verification and calibration of hand held pH meter monthly.
PART III - EXIT INTERVIEW
Review monitoring records and other SIU records required by IUP.
1. Are files well organized?
YES
2. Are sample collection / chain -of -custody forms filled out properly? YES
3. Do results in files agree with reports sent to POTW? YES
4. Who has authority to shut down production should a spill or slug discharge occur?
Avery Moore, Director of Manufacturing; Jeff Goodman, Maintenance Engineer; and shift supervisors at night
5. How does SIU inform employees of whom to call at IOTW in case of spill / slug?
Monthly safety meetings and the written policy is posted. Spill training is covered annually (Last conducted on October 2019).
6. Slug / Spill Control Plan Required? YES
Last update submitted: January 10, 2020
7. Is SIU implementing slug / spill plan? YES
Review procedures. In general, SIU implements spill kits. If a spill occurs, maintenance is contacted immediately. Spill plan is kept in
front office.
Part III Comments: The annual update to the Slug/Spill Plan is due by January, 2021
INSPECTION RESULTS
Comments, Required or Recommended Actions Molybdenum and Copper reduction was discussed during inspection. IU has been
addressing Copper issue since inspection on 11/16/2017 (copper reduction has been achieved with a pump replacement program that has
reduced copper residue). Note: The old pump seals were failing and flooding motor windings, releasing copper to wastewater effluent.
Molybdenum reduction has been addressed by IU by switching chemical used for cooling tower water treatment with a molybdenum free
chemical. IU will investigate other processes for possible molybdenum sources, including raw materials used.
Note: IU stated traces of Moly was detected in Oil/Water separator from hydraulic oils used at facility. IU followed up with vendor and IU was
told that vendors' hydraulic oils were Moly-free.
IU will inform Pretreatment Depa tr ent of on -going progress concerning Copper and Molybdenum reduction.
Signature of Inspector (s)
Date -
Date:
Date:
'7/I/Zv?.D
Page 3

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5 Percent MAHL (lbs/day) _>
Revised:November 2005

Allocation Table
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N
N
O
N
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N
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0
O
N
Headworks last approved:
Allocation Table updated:
0
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Permit Limits
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5 Percent MARL (lbs/day) =>
Revised:November 2005