NCG030075_COMPLETE FILE - HISTORICAL_20181114

STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
/VC& D 300 � S
DOC TYPE
� HISTORICAL FILE
❑ MONITORING REPORTS
DOC DATE
o ao) � ( � �y
YYYYMMDD

ROY COOPER NORTH CAROLINA
Governor Environmental Quality
MICHAEL S. REGAN
Secretary
WILLIAM E. (TO BY) VINS ON, JR.
Interim Director
November 14, 2018
Borg Warner Turbo Systems
Attention: Jack Martindale, EHS Manager
1849 Brevard Road
Arden, North Carolina 28704
Subject: Compliance Evaluation Inspection
Permit: NCG030075
Buncombe County, North Carolina
Dear Mr. Swanson:
Enclosed please find a copy of the Compliance Evaluation Inspection Report for the
inspection I conducted at the subject facility on October 30, 2018,
The report should be self-explanatory; however, should you have any questions
concerning this report, please do not hesitate to contact me at [phone] or by email
at [e-mail].
Enclosure: Inspection Report
Sincerely,
Isaiah Reed, CEPSCI, MS CECI
Environmental Specialist
Land Quality Section
�r wz•�: 'ss a..
North Carolina Department of Environmental Quality I Dlvfslon of Energy, Mineral and Land Resources
Asheville Regional Office 1 2090 U-1 Highway 70 1 5wannanoa, North Carolina 28778
828.296.4500

Compliance Inspection Report
Permit: NCGO30075 Effective: 11/01112 Expiration: 10/31/17 Owner • Borg Warner Turbo System
SOC: Effective: Expiration: Facility: Borgwamer
County: Buncombe 1849 Brevard Rd
Region: Asheville
Arden NC 28704
Contact Person: Mike Doughtery Title: Phone: [phone]
Directions to Facility:
System Classifications:
Primary ORC:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Certification: Phone:
Inspection Date: 0212512015 Entry Time: 02:OOPM Exit Time: 04:OOPM
Primary Inspector: Darlene J Kucken Prone:
Secondary Inspector(s):
Melissa King Phone :
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Metal Fabrication Stormwater Discharge COC
Facility Status: ® Compliant Not Compliant
Question Areas:
® Storm Water
(See attachment summary)
Page: 1

Compliance Inspection Report
Permit: NCG030075 Effective: 11/01/12 Expiration: 10/31/17 owner: Borg Warner Turbo System
SOC: Effective: Expiration: Facility: Borgwarner
County: Buncombe 1 B49 Brevard Rd
Region: Asheville
Arden NC 28704
Contact Person: Mike Doughtery Title: Phone: [phone]
Directions to Facility:
System Classifications:
Primary ORC:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Certification: Phone:
Inspection Date: 02/25/2015 Entry Time: 02:OOPM Exit Time: 04:OOPM
Primary Inspector: Darlene J Kucken Phone:
Secondary Inspector(s)-
Melissa King Phone :
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Metal Fabrication Stormwater Discharge COC
Facility Status: ® Compliant F1 Not Compliant
Question Areas:
■ Storm Water
(See attachment summary)
Page: 1

Division of Energy, Mineral, and Land Resources
Land Quality Section / Stormwater Program
- National Pollutant Discharge Elimination System (NPDES)
Energy. Mineral & PERMIT OWNER AFFILIATION DESIGNATION FORM
Land Resources
ENVIRONMENTAL OVALITY (Individual Legally Responsible for Permit)
Use this form if there has been:
FOR AGENCY USE ONLY
Dale Received
Year Month Day
NO CHANGE in facility ownership or facility name, but the individual
who is legally responsible for the permit has changed.
If the name of the facility has changed, or if the ownership of the facility has changed,
do NOT use this form. Instead, you must rill out a Name -Ownership Change Form
and submit the completed form with all required documentation.
What does "legally responsible individual" mean?
The person is either:
• the responsible corporate officer (for a corporation); RECG1V�r)
• the principle executive officer or ranking elected official (for a municipality; state, tflei6dierdl or other public
agency); NOV- 7 [0t7
• the general partner or proprietor (for a partnership or sole proprietorship}°
+ or, the dutyauthorized representative of one of the above. L)LNA'LAND QUALITY
p STORMtIATER PERMITTING
1) Enter the permit number for which this change in Legally Responsible Individual ("Owner Affiliation")
applies:
Individual Permit
N I C I S
2) Facility Information:
Facility name:
Company/Owner Organization:
Facility address:
(or) Certificate of Coverage
N C G 0 3 0 0 7 5
BorgWarner
BorgWarner Turbo Systems
1849 Brevard Road
Address
Arden NC 28704
City State Zip
To find the current legally responsible person associated with your permit, go to this website:
http://deg.nc,.go-%J/about/divisions/enera-mineral-land-resources/energy-mineral-land-permits/stormwater-program
and run the Permit Contact Summary Report.
3) OLD OWNER AFFILIATION that should he removed:
Previous legally responsible individual: Mike Doughtery
First M I Last
4) NEW OWNER AFFILIATION (legally responsible for the permit):
Person legally responsible for this permit: Mark Passolt
First MI Last
Page 1 of 2
SWU-oWNERAFFI L-23March2017

�f� i �r/�

NPDES Stormwater Permit OWNER AFFILATION DESIGNATION Form
(if no Facility Name/Ownership Change)
Plant Manager
Title
1849 Brevard Rd
Mailing Address
Arden NC 28704
City Statc Zip
[phone] [e-mail]
Telephone E-mail Address
[phone]
Fax Number
5) Reason for this change:
A result of: ® Employee or management change
❑ Inappropriate or incorrect designation before
❑ Other
If other please explain:
The certification below must be completed and signed by the permit holder.
PERMITTEE CERTIFICATION:
1, Mark Passolt. attest that this application for this change in Owner Affiliation (person legally responsible
for the permit) has been reviewed and is accurate and complete to the best of my knowledge. I understand
that if all required parts.of thi� , re not completed, this change may not be processed.
�.
1 1i 1 /2017
Signature Date
PLEASE SEND THE COMPLETED FORM TO:
Division of Energy, Mineral, and Land Resources
Stormwater Program
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
For more infonnation or staff contacts, please call [phone] or visit the website at:
http://deg. nc. gov/about/divisions/enerpy-mineral-land-resources/sor-mwater
Page 2 of 2
SWt1-0W NERAFF IL-23Mar2O17

7
A7tA.
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory Donald R. van der Vaart
Governor Secretary
August 5, 2015
BorgWarner Emissions/Thermal Systems
ATTN: Mr. Grover DeHart
40 Cane Creek Industrial Park Road
Fletcher, North Carolina 28732
SUBJECT: NPDES Stormwater Permit for BorgWarner Emissions/Thermal Systems
General Permit No: NCG030000, COC No: NCG030011
Buncombe County
Dear Mr. DeHart:
In response to your questions regarding tiered responses according to your permit,
NCDENR-Land Quality Section staff conducted a site inspection on July 1, 2015. The
primary goal of this inspection was to evaluate compliance with the conditions of the
NCG030000 General Permit, to discuss any actions that have been or could be taken
to identify and limit potential sources of zinc and copper related to process operations.
At the time of this inspection the facility was found to be in compliance with permit
NCG030011 and no illicit discharges were discovered.
Please keep in mind that benchmark exceedances are NOT limit violations or violations
of permit conditions; however, you are obligated to follow the tiered response actions
outlined in your permit. BorgWarner Emissions/Thermal Systems has been following
the tiered response actions and therefore is in compliance with the permit.
As part of tiered response, BorgWarner Emissions/Thermal Systems initiated
housekeeping actions to reduce the zinc and copper levels and additional analytical
monitoring to assess potential contributors, as documented in two reports from 2014
and 2015 provided during the inspection. Based on these actions and no finding of
significant sources of zinc or copper related to processing at the facility, and upon
receipt of this letter, BorgWarner Emissions/Thermal Systems may continue with the
permit specified semi-annual analytical monitoring for the remainder of the current
permit term. Your current permit is set to expire on October 31, 2017. This decision
only applies to the zinc and copper benchmarks. A benchmark exceedance of any
other parameter listed in your permit will trigger tiered response actions as
described in the general permit.
Division of Energy, Mineral, and Land Resources — Land Quality Section
Asheville Regional Office, 2090 US Highway 70, Swannanoa, North Carolina, 28778-8211
Telephone [phone] Fax [phone] ne
htt :11 ortal.ncdenr.or /web/Irlland- unlit NVorthCarolina
An Equal Opportunity 1 Affirmative Action Employer ;VQtdfrl lly

Mr. Grover DeHart
August 5, 2015
Page 2 of 2
You must notify this office in writing, within five business days, if you become aware of
any significant source of zinc or copper related to processing at your facility that has the
potential to be exposed to stormwater. The relief granted in this letter is contingent
upon the current industrial practices at BorgWarner EmissionslThermal Systems. If
industrial practices change and zinc or copper become a significant stormwater
exposure risk, then this office reserves the right to withdraw this decision and the permit
specified tiered response or other actions may be warranted by the new set of
circumstances.
Please refer to the enclosed Compliance Inspection Report for additional comments,
observations, and recommendations made during the inspection.
Please retain and append this letter to your Stormwater Pollution Prevention Plan
(SPPP) or permit. If you have any questions or comments concerning this letter, please
contact me at [phone].
Sincerely,
Darlene Kucken
Environmental Specialist
Enclosure
ec: Bethany Georgoulias, RCO
I

Kucken, Darlene
From: Georgoulias, Bethany
Sent: Thursday, July 16, 2015 10:21 AM
To: Kucken, Darlene
Cc: Pickle, Ken
Subject: RE: BorgWarner- Mills Gap
Follow Up Flag: Follow up
Flag Status: Flagged
Hi Darlene,
See my notes below. Sorry it took a while to get to this! The NCG02 permit is taking a lot of our energy and resources
here on the industrial side of things.
Belherm, Gtwt gwelfar. Environmental En inc r
NCI)f NR / Division of Dwrgy_ Mineral, and Land RCSOLUTCS
Storm -water Ilernllttlno I'rogratn
1612 Mail Service Center, Raiei& NC 27699-1612
512 N. Salisbury Street. Raleigh_ NC 27604
919 1807-6372 (phone); 9191807-6494 (tax)
Website: http://portal.ncdenr,orJ�veb/Ir/storni%yater
f:-nr<ril rnrrespotnionz:e to anc{.fr um this address maY he mibie'r to rhu -Verrh Carolina Public f wurd5 fucr,r d moY be di-sclosec{ fn thirc{f>ar ties.
From: Kucken, Darlene
Sent: Monday, July 06, 2015 4:46 PM
To: Georgoulias, Bethany
Subject: BorgWarner- Mills Gap
Hi Bethany,
More questions....
I was contacted by Grover DeHart at BorgWarner (NCG030011) to help them assess what to do about theirCU and ZN
benchmark hit. I will first note that their file was essentially non-existent here but there was a couple emails with Laura
from a few months ago. Since I had been to the other BorgWarner facility, I felt I knew a bit about them. They are in
Tier l response at present.
They have one outfall and I have some issues with this outfall — so this question first. This outfall is below three
pipes (one basically never flows and is from parking lot only, one is from the facility and has minimal and
delayed flows and is from their loading dock area, the other captures a highly industrial watershed and is the
creek itself.) During my inspection, the creek was running sewage! We went above their site and there was still
sewage flowing. So it seems clear to me that sampling this outfall is very misleading. I'd like your input on
changing their sampling outfall to ONLY their own pipe from the loading dock area.
Okay, so this is tricky. If they sample the pipe from their loading dock area, will they be missing runoff from
other drainage areas on their site? That's the basic question. It's true that they should not be sampling an
outfall that includes other, unrelated industrial watersheds, nor the creek flow itself. Do all three pipes
converge in a ditch or something before exiting, and then flow into a third pipe all commir;led? (Do you have a

photo by any chance?) Does runoff from their property flow into a ditch and join that final pipe, below where
the other three pipes are? Basically my answer would be this: #1 Yes, fine to sample only the loading dock
area pipe, if that's the only industrial flow from their property. #2 If other flow joins downstream from that,
they could sample that loading dock pipe, and then also create a confluence somehow of other flow from the
property before it joins the monstrous triple -pipe commingled flow so they can capture runoff representative of
their site. But... that's me trying to answer without a visual, and it's not so easy. Give me a call to explain more
if you need to. ***Note I'm having phone issues this morning, though...f'm off-line at the moment, so you won't
get a hold of me right now."*
They have done extra sampling (weekly and ongoing) to determine where their Cu and Zn may be coming from
and they provided me with their data. Two things arise for the ZN levels: the new galvanized roof and
downspouts — and — ready for this?? — the air conditioner condensate water on the roof (0.766, 0.477. 0.512,
0.381).
So one thought that comes to mind is whether they've ever cleaned the AC system coils with chemicals that
contain those metals to prevent bacterial growth. Or with acidic chemicals that may draw out the metal from
the coils or other parts in that system. I imagine the galvanized roof (you said it's new, so recently installed I
assume) is probably a bigger influence. How much data do they have? Sounds like they are on the road to
constructing a good case, if they haven't already.
Under the revised benchmarks, they'd look pretty good since they're barely over the current benchmarks. I can scan
and send you their research summary with data if it helps. The facility is very clean and they don't process any Zn or
Cu. They believe the new roof and the air conditioner is the source. But I also want to emphasize that their sample
outfall is not a good outfall to assess processing at this facility.
Want more info? Let me know. But I don't think they should have to do any further tiered work.
Darlene Kucken - Darlene.Kucken@ncde_nr.gov
North Carolina Dept. of Environment and Natural Resources
Asheville Regional Office
Division of Energy, Mineral, and Land Resources
2090 U.S. 70 Highway
Swannanoa, NC 28778
Tel: [phone]
Fax: [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Caw and
may be disclosed to third parties.
`Aj Go Green! Print this email only when necessary. Thank you for helping NCDENR be environmentally responsible.

permit: NCG030011 Owner • Facility, Borg Warner Cooling Systems
Inspection date: 0710112015 Inspection Type : Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
1. This inspection was conducted by request of Grover DeHart to assess progress made towards assessing potential Zn
and Cu inputs to stormwater from process activities as part of Tier I investigations and as a general stormwater permit
compliance evaluation.
2. The following observations were made during the inspection:
a. There are five pipes being assessed for potential Cu and Zn inputs to stormwater. These pipes are serving as a
research study.
b. Per the stormwater permit, there is one outfall that should be sampled as a measure of potential inputs of Zn and Cu
from process activities at the facility. This is called the "right pipe". Other pipes being sampled are not actual outfalls
associated with processing and are only being sampled as part of the research study to determine potential inputs.
c. It was noted during the inspection that the "center/main pipe/creek" had raw sewage in the flow at the time of
inspection. This pipe is not considered to be representative of the facility process activities and should not be sampled as
the outfall sample.
d. There is a galvanized roof that was installed last year and gutters were added within the last few months that could
be contributing to Zn and Cu levels.
3. Current benchmark levels for Zn = 067mg/L and for Cu = _007niglL. Upon permit renewal, these benchmark levels will
be increased to Zn = ,126mg/L and Cu = .010mg1L. At current benchmark levels, the facility is below the benchmark for Zn
in the 2015 sampling of the "right pipe" (.048mg/[)and above the Cu benchmark (.023mg/L).
4. In addition to the five pipes assessed for the research study, the study also assessed the potential contributions of Zn
from the air conditioner condensate water on the roof. The sampling showed high levels of Zn in the condensate water
sample (.766, .477, .512, and .381 mg/L). It appears that the condensate water may be a contributor of Zn and further
reseach on this contributor may be warranted if Zn and Cu benchmarks are exceeded such that Tier II sampling is required
in the future.
5. In summary, it appears that housekeeping has been assessed and internal contributions to Zn and Cu are relatively
non-existent; the reseach study has demonstrated Zn and Cu levels at several locations; the air conditioner condensate
water has shown the highest levels of Zn; and Cu from the "right pipe" was above the benchmark in the 2015 sampling.
6. Semi-annual sampling of the "right pipe" should continue per permit conditions.
Page: 2

Compliance Inspection Report
Permit: NCG030011 Effective: 11/01/12 Expiration: 10/31/17 Owner : Borg Warner Cooling Systems
SOC: Effective: Expiration: Facility: Borg Warner Cooling Systems
County: Henderson Cane Creek Industrial Par
Region: Asheville
Fletcher NC 28732
Contact Person: Grover Dehart Title: Env.Specialist Phone: [phone] Ext.128
Directions to Facility:
System Classifications:
Primary ORC:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Inspection Date: 07/0112015
Primary Inspector: Darlene J Kucken
Secondary Inspector(s):
Certification:
Phone:
Entry Time: 02:00PM Exit Time: 03:30PM
Phone:
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Metal Fabrication Stormwater Discharge COC
Facility Status: E ' Compliant i'1 Not Compliant
Question Areas:
Storm Water
(See attachment summary)
Page: 1

permit: NGG030011 Owner - Facility: Borg Warner Cooling systems
Inspection Date: 07/0112015 Inspection Type : Compliance Evaluation Reason for Visit: Routine
Stormwater Pollution Prevention Plan
Does the site have a Stormwater Pollution Prevention Plan?
# Does the Plan include a General Location (USGS) map?
# Does the Plan include a "Narrative Description of Practices"?
# Does the Plan include a detailed site map including outfall locations and drainage areas?
# Does the Plan include a list of significant spills occurring during the past 3 years?
# Has the facility evaluated feasible alternatives to current practices?
# Does the facility provide all necessary secondary containment?
# Does the Plan include a BMP summary?
# Does the Plan include a Spill Prevention and Response Plan (SPRP)?
# Does the Plan include a Preventative Maintenance and Good Housekeeping Plan?
# Does the facility provide and document Employee Training?
# Does the Plan include a list of Responsible Party(s)?
# Is the Plan reviewed and updated annually?
# Does the Plan include a Stormwater Facility Inspection Program?
Has the Stormwater Pollution Prevention Plan been implemented?
Comment:
Qualitative Monitoring
Has the facility conducted its Qualitative Monitoring semi-annually?
Comment:
Analytical Monitorin
Has the facility conducted its Analytical monitoring?
# Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas?
Comment:
Permit and Outfalls
# Is a copy of the Permit and the Certificate of Coverage available at the site?
# Were all outfalls observed during the inspection?
# If the facility has representative outfall status, is it properly documented by the Division?
# Has the facility evaluated all illicit (non stormwater) discharges?
Comment:
Yes No NA NE
0 ❑ ❑ ❑
■❑❑❑
0 ❑ 1113
0 ❑ ❑ ❑
❑❑ME]
0 ❑ 1113
0 ❑ ❑ ❑
0 ❑ ❑ ❑
0❑❑❑
❑ ❑ ❑
0 ❑ ❑ ❑
0 ❑ ❑ ❑
® ❑ ❑ ❑
0❑❑❑
0❑❑❑
Yes No NA NE
0❑❑❑
Yes No NA NE
0 ❑ ❑ ❑
❑ ❑ M ❑
Yes No NA NE
® ❑ ❑ ❑
M El ElEl ❑ 0 ❑
❑❑0❑
Page: 3

Stormwater June 2015
Received stormwater report via email on 6/15/2015. Exceeded benchmark for zinc and copper on the
6/02/15 sample. Talked to DENR Darlene. Zinc Benchmark value: 0.067 mg/L Sample value: 0.0711;
mg/L Copper benchmark value: 0.007 mg/L Sample value: 0.0077 mg/L
What we learned from DENR: 6/30/2015 Talked to Darien from DENR. There have been reviews of
benchmark levels and new levels have been set. As facilities update their permits the new levels will
take effect.
What we did:
6/17/2015 -- Team meeting discussing root causes and corrective actions. James Ray, David Justus,
Grover DeHart, Chris Mills, and Mike Laughter. Went on the roof to see if the exhaust for the phosphate
tank deposited any residue on the roof. None was visible but the roof is in the process of being replaced
so the area is new. Completed site stormwater inspection. Inspection date 7/3/2014.
6/24/2015 — Implemented weekly sampling of stormwater from the different pipes at the outfall and
the pipe at the infall.
Tier I response requirements.
1. Conduct a stormwater management inspection of the facility within two weeks of receiving
sampling results. Received results 6/15/2015, inspection complete 6/18/2015
2. Identify and evaluate possible causes of the benchmark value exceedance. Possible causes: roof
replacement project, exhaust from zinc phosphate bath, hydraulic oil leak from tractor trailer,
galvanized pipe everywhere, automobiles in the parking lot, air conditioner unit condensate.
3. Identify potential and select the specific: source controls, operational controls, and / or to bring
concentrations within the benchmark range. Inspections revealed high levels of zinc from air
conditioner condensate water.
4. Implement the selected actions within two months of the inspection. Selection actions:
implement stormwater testing to determine area of concern, initiated 6/24/2015.
5. Record each instance of a Tier One response in the SPPP. Include the date and value of the
benchmark exceedance, the inspection date, the personnel conducting the inspection, the
selected actions, and the date the selected actions were implemented.

Stormwater samples for COPPER study
Date
Infall /
creek
Outfail /
creek
Center /
Main
pipe /
creek
Right pipe
Concrete
pipe at
outfall
roof
gutter
Back pad
/ French
drain
pipe
Roof
Rainfall
last 24
hours
6/24/2015
0.015 6
0.0171(
0.014
0,023 4
0.014
0.008
0 in.

lS
Stormwater samples for ZINC study
Date
Infall /
creels
outfall /
creek
Center /
Main
pipe /
creek
Right pipe
Concrete
pipe at
outfall
roof
gutter
Back pad
/ French
drain
pipe
Roof
Rainfall
last 24
hours
6/24/2015
0.032
0.018
0.021
0.048
0.007
0.378
0 in.
Evaluation
of air
conditioner
condensate
water4K
Back
North side
Back
South side
front
North side
Front
South side
6/25/2015
0.766
0.477
0.512
0.381

Stormwater ;)0N
Received stormwater report via email on 6/27/2014 and opened to complete paperwork on 7/1/2014.
Exceeded benchmark for zinc on the 6/12/14 sample. Talked to DENR Linda Wigs, Tim Fox, and Laura
Herbert. Benchmark value: 0.067 mg/L Sample value: 0.0703 mg/L
What we learned from DENR: Need to start Tier I response. As long as we follow Tier I response we will
not get an NOV. Many facilities cannot find source or improvement actions to follow and have been
granted exemptions. There are a lot of industries that have exceeded benchmark, some have no real
actions to take and have been granted exemptions. There is zinc in a lot of stuff: car tires, gutters,
culverts, auto parts, brake pads.
What we did:
7/3/2014 -- Team meeting discussing root causes and corrective actions. James Ray, David Justus,
Grover DeHart, Chris Mills, and Mike Laughter. Went on the roof to see if the exhaust for the phosphate
tank deposited any residue on the roof. None was visible but the roof is in the process of being replaced
so the area is new. Completed site stormwater inspection. Inspection date 7/3/2014.
7/9/2014 — Implemented weekly sampling of stormwater from the different pipes at the outfall and the
pipe at the infall.
Tier I response requirements.
1. Conduct a stormwater management inspection of the facility within two weeks of receiving
sampling results. Received results 71/2014, inspection complete 7/3/2014
2. Identify and evaluate possible causes of the benchmark value exceedance. Possible causes: roof
replacement project, French drain repairs, exhaust from zinc phosphate bath, hydraulic oil leak
from tractor trailer, galvanized pipe everywhere, automobiles in the parking lot.
3. Identify potential and select the specific: source controls, operational controls, and / or to bring
concentrations within the benchmark range. Inspections revealed no true identifiable source of
zinc other than storage of spare phosphator carriers. Moved carriers under cover 7/3/2014.
4. Implement the selected actions within two months of the inspection. Selection actions:
implement stormwater testing to determine area of concern, initiated 7/9/2014. Weekly site
inspections by EHS engineer initiated 7/9/2014. Moved phosphator carriers and weekly
sampling (right pipe) supports opportunity for zinc from carriers to have contributed to samples.
5. Record each instance of a Tier One response in the SPPP. Include the date and value of the
benchmark exceedance, the inspection date, the personnel conducting the inspection, the
selected actions, and the date the selected actions were implemented.

Now
Stormwater samples for zinc study
Date
Infail /
creek
Left pipe
Center /
Main
pipe /
creek
Right pipe
Concrete
pipe at
outfall
roof
gutter?
Back pad
/ French
drain
pipe
Normal
outfall
Rainfall
last 24
hours
7/9/2014
0.111
No flow
0.060
0.250-"r
0,000
.1102 in
7/16/2014
0.022
No flow
0.013
No flow
0.003
0.010
7/24/2014
0.067
No flow
0.010
0.170
0.025
0.004
8/1/2014
0.070
No flow
0.048
0.047
0.053
0.170
8/20/2014
0.030
No flow
0.021
No flow
0.010
0.001
9/12/2014
0.022
No flow
0.024
0.064
0.068
0.145,
0.027
0.050

NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
April 22, 2015
BorgWarner Turbo Systems
ATTN: Mr. Jack Martindale
PO Box 15075
Asheville, North Carolina 28813
Donald R. van der Vaal
Secretary
SUBJECT: NPDES Stormwater Permit: Request for Regulatory Relief and
Representative Outfall Status
BorgWarner Turbo Systems
General Permit No: NCG030000; COC No: NCG030075
Buncombe County
Dear Mr. Martindale:
In response to your request for regulatory relief, NCDENR-Land Quality Section staff
conducted a site inspection on February 25, 2015. The primary goal of this inspection
was to evaluate compliance with the conditions of the NCG030000 General Permit, to
discuss any actions that have been or could be taken to identify and limit potential
sources of zinc and copper related to process operations, and to discuss potential for
representative outfall statds on -one or more outfalls. At the time of this inspection the
facility was found to be in compliance with permit NCGO30075 and no illicit discharges
were discovered.
Monthly monitoring was triggered by exceedances of the zinc and copper benchmarks
in Storm Drain Outfalls OF-1, OF-2, OF-3, OF-4 and OF-7 at your facility. Please keep
in mind that benchmark exceedances are NOT limit violations or violations of permit
conditions, however, you are obligated to follow the tiered response actions outlined in
your permit. BorgWarner Turbo Systems has been fallowing the tiered . response
actions and therefore is in compliance with the permit.
As part of tiered response, BorgWarner Turbo Systems initiated housekeeping actions
to reduce the zinc and copper levels, as documented in the 'Evaluation of Stormwater
Activities Related to Tiered Response' dated March 26, 2015. Based on these actions
and no finding of significant sources of zinc or copper, we are granting regulatory relief
in the form of a collapsed Tier 2 — Tier 3 response. Upon receipt of this letter,
BorgWarner Turbo Systems may resume the permit specified semi-annual analytical
monitoring for the remainder of the current permit term. Your current permit is set to
expire on October ' 31, 2017. This decision only applies to the zinc and copper
Division of Energy, Mineral, and Land Resources — Land Quality Section
Asheville Regional Office, 2090 US Highway 70, Swannanoa, North Carolina, 28778-8211
Telephone [phone] Fax [phone] one
http:11portal.ncdenr.org/webAr/land-ouality No Caroli/na
An Equal opportunity 1 Affirmative Action Employer turodiv

Mr. Jack Martindale
April 22, 2015
Page 2 of 2
benchmarks. A benchmark exceedance of any other parameter listed in your
permit will trigger tiered response actions as described in the general permit.
In response to your request for Representative- Outfall Status, we agree that OF-3 is
representative of OF-2 and OF-3. We also note that OF-4, OF-5, OF-6 and OF-7
should be documented as. outfalls in your SPPP, but you are granted relief from
analytical monitoring of these outfalls because they are not related to any process
areas. Therefore, analytical monitoring will -only be required per your permit conditions
on OF-1 and OF-3.
You must notify this office in writing, within five business days, if you become aware of
any significant source of zinc or copper at your facility that has the potential to be
exposed to stormwater. The relief granted in this letter is contingent upon the current
industrial practices at BorgWarner Turbo Systems. If industrial practices change and
zinc or copper does become a significant stormwater exposure risk then this office
reserves the right to withdraw this decision and reinstate the permit specified tiered
response or other actions that may be warranted by the new set of circumstances.
Please refer to the enclosed Compliance Inspection Report for additional comments,
observations, and recommendations made during the inspection.
Please retain -and append this letter to your Stormwater Pollution Prevention Plan
(SPPP) or permit.. If you have any questions or comments concerning this letter, please
contact Darlene Kucken or me at [phone].
Sincerely,
z�4�XO41_4�
Laura Herbert, PE
Regional Engineer
Enclosure
ec: Bethany Georgoulias, RCO
Matthew E. Wallace, P.E., Amec Foster Wheeler Environment and Infrastructure,
Inc. (matthew.wallaceaamecfw.com )

Compliance Inspection Report
Pormtt NCG030075 Effective: 11/01/12 Expiration: 10/31/17 Owner. Borg Warner Turbo System
SOC: Effective: Expiration: Facility: Borgwarner
County: Buncombe 1849 Brevard Rd
Region: AShevhle
Arden NC 28704
Contact Person: Mike Doughtery Title: Phone: 282-WA000
Diroctlons to Facility:
System Classifications:
Primary ORC:
Secondary ORC(s):
On -Site Representative(s):
Rotated Permits:
Inspection Date: 0212512015
Primary Inspector: Darlene J Kucken,
Secondary Inspector(s):
Certification: Phone:
Entry Time: 02:00PNI Exit Time: 04:001PM
Phone:
Melissa King Phone
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Metal Fabrication Stormwoter Discharge COC
Facility Status: Compliant Not Compliant
Question Areas:
E storm Water
(See attachment summary)
Page: 1

permit: NCGO30075 Owner - Faetilly: Barg Warner Turbo System
Inspection Date: 02/2512015 Inspection Type : Compliance Eva€nation Reason for Malt: Routine
Inspection Summary:
This inspection was conducted as a compliance inspection, an assessment of Representative Outfall Status and an
assessment of potential regulatory relief from tiered sampling. The site was found to be in very clean condition both inside
and outside. A field assesment of potential impacts to each outfall was conducted. Based on the reference analytical work
conducted, best management practices installed, and the site conditions, the following communication was provided by
email on 3116t2015 from Darlene Kucken to Jack Martindale and Matthew Wallace:
1. Outfalls #4, 5, 6 and 7 should be documented in your SWPPP and you should conduct visual inspections per your
permit, but you are granted relief from analytical monitoring of these outfalls because they are related to parking lots and
grassed areas and not to process areas. Please understand that these four outfalls are unregulated, which is different from
Representative Outfall Status.
2. As for your request for Representative Outfall Status: We are prepared to agree to continued sampling of outfall #1
and outfall #3 (as representative of outfalls #2 and #3). Therefore, only outfalls #1 and #3 will require analytical monitoring.
This should be documented in your SWPPP.
3. Please submit a written engineering argument for the relief from monthly Tiered sampling. This argument should
address what you have already done in response to the exceedances, such as wet mopping, magnet sweeping, pre -vent
filters, etc., etc. Within the engineered argument, please provide your data on the rainfall sampling you conducted. The
intent of this argument is to provide documentation, which we do not currently have from you, to the file. Until we receive
this engineered argument, you should continue your Tiered sampling.
4. After this office receives your engineered argument, you will receive an official letter providing your status as it relates
to Representative outfall Status and to Tiered Sampling.
An Update to Representative Outfall Staus was provided to this office on March 13, 2015. A request was made to Jack
Martindale on March 23 to revise and sign the request form.
Page: 2

permit NCG030075 Owner - Facility: Borg Warner Turbo System
Inspection Date: 02/25/2015 Inspection Type : Compliance Evaluation Reason for Melt Routine
Stormwater Pollution Prevention Plan
YYmj No NA NE
Does the site have a Stormwater Pollution Prevention Plan?
®❑ ❑ ❑
# Does the Plan include a General Location (USGS) map?
0 ❑ ❑ ❑
# Does the Plan include a 'Narrative Description of Practices"?
❑ ❑ ❑
# Does the Plan include a detailed site map induding outfall locations and drainage areas?
❑ ❑ ❑
# Does the Plan include a list of significant spills occurring during the past 3 years?
■ ❑ ❑ ❑
# Has the facility evaluated feasible altematives to current practices?
U ❑ ❑ ❑
# Does the facility provide all necessary secondary containment?
M ❑ ❑ ❑
# Does the Plan include a BMP summary?
®❑ ❑ ❑
# Does the Plan include a Spill Prevention and Response Plan (SPRP)?
❑ ❑ ❑
# Does the Plan include a Preventative Maintenance and Good Housekeeping Plan?
®❑ ❑ ❑
# Does the facility provide and document Employee Training?
e ❑ ❑ ❑
# Does the Plan include a list of Responsible Party(s)?
❑ ❑ ❑
# Is the Plan reviewed and updated annually?
■ ❑ ❑ ❑
# Does the Plan include a Stormwater Facility Inspection Program?
❑ ❑ ❑
Has'the Stormwater Pollution Prevention Plan been implemented?
®❑ ❑ ❑
Comment:
Qualitative Monitoring Yes No NA NE
Has the facility conducted Its Qualitative Monitoring semi-annually? ■ ❑ ❑ ❑
Comment:
Analytical Monitoring Yea No NA NE
Has the facility conducted its Analytical monitoring? ■ ❑ ❑ ❑
# Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas? ❑ ❑ S ❑
Comment:
Permit and Outfalls
- Yea No NA NE
# Is a copy of the Permit and the Certificate of Coverage available at the site? ■ ❑ ❑ ❑
# Were all outfalls observed during the inspection? M ❑ ❑ ❑
# If the facility has representative outfall status, is it properly documented by the Division? ❑ ❑ ® ❑
# Has the facility evaluated all illicit (non stormwater) discharges? ❑ ❑ ■ ❑
Comment:
Page: 3

petmlr NGG030075 Owner - Facility: Borg Warner Turbo System
Inspection Date: 02/25/2015 Inspection Type, Compliance Evaluation Reason for Visit: Routine
Inspection Summary.
This inspection was conducted as a compliance inspection, an assessment of Representative Outfall Status and an
assessment of potential regulatory relief from tiered sampling. The site was found to be in very clean condition both inside
and outside. A field assesment of potential impacts to each outfall was conducted. Based on the reference analytical work
conducted, best management practices installed, and the site conditions, the following communication was provided by
email on 3/16/2015 from Darlene Kucken to Jack Martindale and Matthew Wallace:
1. Outfalls #4, 5, 6 and 7 should be documented in your SWPPP and you should conduct visual inspections per your
permit, but you are granted relief from analytical monitoring of these outfalls because they are related to parking lots and
grassed areas and not to process areas. Please understand that these four outfalls are unregulated, which is different from
Representative Outfall Status.
2. As for your request for Representative Outfall Status: We are prepared to agree to continued sampling of outfall #1
and outfall #3 (as representative of outfalls #2 and #3). Therefore, only outfalls #1 and #3 will require analytical monitoring.
This should be documented in your SWP PP.
3. Please submit a written engineering argument for the relief from monthly Tiered sampling. This argument should
address what you have already done in response to the exceedances, such as wet mopping, magnet sweeping, pre -vent
filters, etc., etc. Within the engineered argument, please provide your data on the rainfall sampling you conducted. The
intent of this argument is to provide documentation, which we do not currently have from you, to the file. Until we receive
this engineered argument, you should continue your Tiered sampling.
4. After this office receives your engineered argument, you will receive an official letter providing your status as it relates
to Representative outfall Status and to Tiered Sampling.
An Update to Representative Outfall Staus was provided to this office on March 13, 2015. A request was made to Jack
Martindale on March 23 to revise and sign the request form,
Page: 2

Permit: NCG030075 Owner- Facility: Barg Warner Turbo System
Inspection Date: 02/25/2015 Inspection Type : Compliance Evaluation Reason for Visit: Routine
Stormwater Pollution Prevention Plan
Yes Na NA NE
Does the site have a Stormwater Pollution Prevention Plan?
❑ ❑ ❑
# Does the Plan include a General Location (USGS) map?
® ❑ ❑ ❑
# Does the Plan include a "Narrative Description of Practices"?
® ❑ ❑ ❑
# Does the Plan include a detailed site map including outfall locations and drainage areas?
® ❑ ❑ ❑
# Does the Plan include a list of significant spills occurring during the past 3 years?
® ❑ ❑ ❑
# Has the facility evaluated feasible alternatives to current practices?
® ❑ ❑ ❑
# Does the facility provide all necessary secondary containment?
IN ❑ ❑ ❑
# Does the Plan include a BMP summary?
® ❑ ❑ ❑
# Does the Plan include a Spill Prevention and Response Plan (SPRP)?
EM ❑ ❑ ❑
# Does the Plan include a Preventative Maintenance and Good Housekeeping Plan?
® ❑ ❑ ❑
# Does the facility provide and document Employee Training?
to ❑ ❑ ❑
# Does the Plan include a list of Responsible Party(s)?
® ❑ ❑ ❑
# Is the Plan reviewed and updated annually?
® ❑ ❑ ❑
# Does the Plan include a Stormwater Facility Inspection Program?
® ❑ ❑ ❑
Has the Stormwater Pollution Prevention Plan been implemented?
® ❑ ❑ ❑
Comment:
Qualitative Monitoring Yes No NA NE
Has the facility conducted its Qualitative Monitoring semi-annually? ® ❑ ❑ ❑
Comment:
Analytical Monitoring Yes No NA NE
Has the facility conducted its Analytical monitoring? ® ❑ ❑ ❑
# Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas? ❑ ❑ .® ❑
Comment:
Permit and Outfalls Yes No NA NE
# Is a copy of the Permit and the Certificate of Coverage available at the site? E ❑ ❑ ❑
# Were all outfalls observed during the inspection? ® ❑ ❑ ❑
# if the facility has representative outfall status, is it properly documented by the Division? ❑ ❑ ® ❑
# Has the facility evaluated all illicit (non stormwater) discharges? ❑ ❑ ® ❑
Comment:
Page: 3

Permit: NCG03Oo75 Owner - Facility: Borg Warner Turbo System
Inspection Date: 02125l2015 Inspection Type : Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
This inspection was conducted as a compliance inspection, an assessment of Representative Outfall Status and an
assessment of potential regulatory relief from tiered sampling_ The site was found to be in very clean condition both inside
and outside. Afield assesment of potential impacts to each outfall was conducted. Based on the reference analytical work
conducted, best management practices installed, and the site conditions, the following communication was provided by
email on 3/1612015 from Darlene Kucken to Jack Martindale and Matthew Wallace:
1. Outfalls #4, 5, 6 and 7 should be documented in your SWPPP and you should conduct visual inspections per your
permit, but you are granted relief from analytical monitoring of these outfalls because they are related to parking lots and
grassed areas and not to process areas. Please understand that these four outfalls are unregulated, which is different from
Representative Outfall Status.
2. As for your request for Representative Outfall Status: We are prepared to agree to continued sampling of outfall #1
and outfall #3 (as representative of outfalls #2 and #3). Therefore, only outfalls #1 and #3 will require analytical monitoring,
This should be documented in your SWPPP.
3. Please submit a written engineering argument for the relief from monthly Tiered sampling. This argument should
address what you have already done in response to the exceedances, such as wet mopping, magnet sweeping, pre -vent
filters, etc., etc_ Within the engineered argument, please provide your data on the rainfall sampling you conducted. The
intent of this argument is to provide documentation, which we do not currently have from you, to the file. until we receive
this engineered argument, you should continue your Tiered sampling.
4. After this office receives your engineered argument, you will receive an official letter providing your status as it relates
to Representative outfall Status and to Tiered Sampling.
An Update to Representative Outfall Staus was provided to this office on March 13, 2015. A request was made to .tack
Martindale on March 23 to revise and sign the request form.
Page: 2

Permit: NCG030075 Owner - Facility. Borg Warner Turbo System
Inspection Date: 02l2512015 Inspection Typo: Compliance Evaluation Reason for Visit: Routine
Stormwater Pollution Prevention Plan
Yes No NA NE
Does the site have a Stormwater Pollution Prevention Plan?
N
❑ ❑ ❑
# Does the Plan include a General Location (USGS) map?
■
❑ ❑ ❑
# Does the Plan include a "Narrative Description of Practices"?
®
❑ ❑ ❑
# Does the Plan include a detailed site map including outfall locations and drainage areas?
®
❑ ❑ ❑
# Does the Plan include a list of significant spills occurring during the past 3 years?
0
❑ ❑ ❑
# Has the facility evaluated feasible alternatives to current practices?
®
❑ ❑ ❑
# Does the facility provide all necessary secondary containment?
®
❑ ❑ ❑
# Does the Plan include a BMP summary?
❑ ❑ ❑
# Does the Plan include a Spill Prevention and Response Plan (SPRP)?
0
❑ ❑ ❑
# Does the Plan include a Preventative Maintenance and Good Housekeeping Plan?
E
❑ ❑ ❑
# Does the facility provide and document Employee Training?
0
❑ ❑ ❑
# Does the Plan include a list of Responsible Party(s)?
❑ ❑ ❑
# Is the Plan reviewed and updated annually?
®
❑ ❑ ❑
# Does the Plan include a Stormwater Facility Inspection Program?
®
❑ ❑ ❑
Has the Stormwater Pollution Prevention Plan been implemented?
■
❑ ❑ ❑
Comment
Qualitative Monitorinq Yes No NA NE
Has the facility conducted its Qualitative Monitoring semi-annually? 0 ❑ ❑ ❑
Comment:
Analytical Monitorinal Yes No NA NE
Has the facility conducted its Analytical monitoring? 0 ❑ ❑ ❑
# Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas? ❑ ❑ 0 ❑
Comment:
Permit and Outfalls
- Yes No NA NE
# Is a copy of the Permit and the Certificate of Coverage available at the site? E ❑ ❑ ❑
# Were all outfalls observed during the inspection? ■ ❑ ❑ ❑
# If the facility has representative outfall status, is it properly documented by the Division? ❑ ❑ ® ❑
# Has the facility evaluated all illicit (non stormwater) discharges? ❑ ❑ ® ❑
Comment:
Page: 3

Herbert, Laura C
From: Herbert, Laura C
Sent: Thursday, July 03, 2014 9:52 AM
To: '[e-mail]'
Cc: Wiggs, Linda; Fox, Tim; Kucken, Darlene
Subject: RE: NCG03 Borg Warner Correction NCG030011
Grover,
Thanks for your call today. As we discussed, this facility has only exceeded the zinc benchmark once, and is still in Tier I
response. You indicated that you all have put together a team to initiate investigation and response to the Tier I
requirements. Also, you corrected me in that this is the Borg Warner facility out in Mills Gap area at NCG030011, NOT
the other facility (NCG030075). Thanks for the clarification.
We look forward to working with you.
Thanks,
Laura
Laura Herbert, P.E.
Regional Engineer
Division of Energy, Mineral, and Land Resources - Land Quality Section
NCDENR-Asheville Regional Office
2090 U5 Highway 70
Swannanoa, NC 28778
Tel:[phone] Fax:[phone]
http://Portal.ncdenr.org/web/li
Notice: E-mail correspondence to and from -this address may be subject to Lhe North Carolina Public Records Law and therefore may be disclosed to
third parties unless the content is exempt by statute or other regulation.
From: Herbert, Laura C
Sent: Thursday, July 03, 2014 9:17 AM
To: [e-mail]
Cc: Wiggs, Linda; Fox, Tim; Kucken, Darlene
Subject: RE: NCG03 Borg Warner NCG 030075
Grover,
Thanks for your notification regarding exceedance of the zinc benchmark. We have been corresponding with Matthew
Wallace of AMEC regarding your facility. I think that J Martindale of BW was also copied on these discussions (see
attached email string). We are aware that non -process contributors such as galvanized roofing and gutters can increase
zinc levels in outfalls, but we want to be sure that any potential process contributors have been addressed and
minimized. As part of the tiered response, we would encourage you to review the facility material inventory for any
processes that may be using zinc -containing materials and any possible venting/exposure of these materials to
stormwater. Where feasible, these potential exposures should be addressed with best management practices (BMPs)
to reduce stormwater exposures. We appreciate your efforts in minimizing stormwater exposures and look forward to
working with you to address your concerns. If zinc benchmarks continue to be exceeded after implementation of BMPs,
we can review the facility for regulatory relief from the Tiered response. To initiate this, we will need a request from the
N�

company that summarizes the results, wrtat actions the company has taken in the tiered response, and your
inventory/process review for zinc exposures generated as part of the process. Any information concerning background
levels of zinc or non -process sources will also be helpful. Once we receive this, we will schedule an inspection as part of
our review of the request. Let me know if you have any questions or need more information.
Give Darlene Kucken or me a call at [phone] if you would like to discuss.
Regards,
Laura
Laura Herbert, P.E.
Regional Engineer
Division of Energy, Mineral, and Land Resources - Land Quality Section
NCDENR-Asheville Regional Office
2090 US Highway 70
Swannanoa, NC 28778
Tel:[phone] Fax:[phone]
http://Portal.ncdenr.org/web/Ir
Notice: E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and therefore may be disclosed to
third parties unless the content is exempt by statute or other regulation.
From: Fox, Tim
Sent: Wednesday, July 02, 2014 8:50 AM
To: Herbert, Laura C
Cc: Wiggs, Linda; gdehart(ftorgwarner.com
Subject: NCG03 Borg Warner
La ura,
Linda and I spoke with Mr. Dehart while you were out regarding NCG03 permit for Borg Warner.
I explained to follow the Tiered response as per the permit. They have exceeded their zinc benchmark.
We had a conversation regarding my experiences before the re -organization. Could you discuss with him further at your
convenience and provide him with guidance?
Grover,
Lauras contact info:
Laura Herbert, P.E.
Regional Engineer
Division of Energy, Mineral, and Land Resources - Land Quality Section
NCDENR-Asheville Regional Office
2090 US Highway 70
Swannanoa, NC 28778

Tel:[phone] Fax:[phone]
http://Portal.ncdenr.org/web/Ir
Thanks,
Tim
Tim Fox - tim.fox(@ncdenr.gov
North Carolina Dept. of Environment and Natural Resources
Asheville Regional Office
Division of Water Resources — Water Quality Programs
2090 U.S. 70 Highway
Swannanoa, NC 28778
Tel: [phone]
Fax: [phone]
Notice: Email correspondence to and from this address may be subject to the NC Public Records Law and may be
disclosed to third parties.
ow-

i
0
Compliance Inspection Report
Permit: NCG030075 Effective: 11/01/12 Expiration: 10/31/17 owner: Borg Warner Turbo System
SOC: Effective: Expiration: Facility: Borgwamer
County: Buncombe 1849 Brevard Rd
Region: Asheville
Arden NC 28704
Contact Person: Mike Doughtery Title: Phone: [phone]
Directions to Facility:
System Classifications:
Primary ORC:
Secondary ORC(s):
On -Site Representative(s�:
Related Permits:
Inspection Date: 02/25/2015 Entry Time: 02:OOPM
Primary Inspector: Darlene J Kucken i �L
Secondary tnspector(s):
Certification:
Phone:
Exit Time: 04:OOPM
Phone:
Melissa King Phone :
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Metal Fabrication Stormwater Discharge COC
Facility Status: ■ Compliant [] Not Compliant
Question Areas:
Storm Water
(See attachment summary)
Page: 1

Permit: NCG030075 owner - Facility: Borg Warner Turbo System
Inspection Date: 0212512015 Inspection Type :Compliance Evaluation Reason for Veit: Routine
Inspection Summary:
This inspection was conducted as a compliance inspection, an assessment of Representative Outfall Status and an
assessment of potential regulatory relief from tiered sampling. The site was found to be in very clean condition both inside
and outside. A field assesment of potential impacts to each outfall was conducted. Based on the reference analytical work
conducted, best management practices installed, and the site conditions, the following communication was provided by
email on 3/16/2015 from Darlene Kucken to Jack Martindale and Matthew Wallace:
1. Outfalls #4, 5, 6 and 7 should be documented in your SWPPP and you should conduct visual inspections per your
permit, but you are granted relief from analytical monitoring of these outfalls because they are related to parking lots and
grassed areas and not to process areas. Please understand that these four outfalls are unregulated,. which is different from
Representative Outfall Status.
2. As for your request for Representative Outfall Status: We are prepared to agree to continued sampling of outfall #1
and outfall #3 (as representative of outfalls #2 and #3). Therefore, only outfalls #1 and #3 will require analytical monitoring.
This should be documented in your SWPPP.
3. Please submit a written engineering argument for the relief from monthly Tiered sampling. This argument should
address what you have already done in response to the exceedances, such as wet mopping, magnet sweeping, pre -vent
filters, etc., etc. Within the engineered argument, please provide your data on the rainfall sampling you conducted. The
intent of this argument is to provide documentation, which we do not currently have from you, to the file. Until we receive
this engineered argument, you should continue your Tiered sampling.
4. After this office receives your engineered argument, you will receive an official letter providing your status as it relates
to Representative outfall Status and to Tiered Sampling.
An Update to Representative Outfall Staus was provided to this office on March 13, 2015. A request was made to Jack
Martindale on March 23 to revise and sign the request form.
Page: 2

Permit: NCG030075 owner - facility: Sorg Warner Turbo System
Inspection Date: 0212512015 Inspection Type • Compliance Evaluation Reason for Visit: Rovtine
Stormwater Pollution Prevention Plan
Yes No NA NE
Does the site have a Stormwater Pollution Prevention Plan?
e ❑ ❑ ❑
# Does the Plan include a General Location (USGS) map?
❑ ❑ ❑
# Does the Plan include a "Narrative Description of Practices"?
❑ ❑ ❑
# Does the Plan include a detailed site map including outfall locations and drainage areas?
❑ ❑ ❑
# Does the Plan indude a list of significant spills occurring during the past 3 years?
❑ ❑ ❑
# Has the facility evaluated feasible alternatives to current practices?
0 ❑ ❑ ❑
# Does the facility provide all necessary secondary containment?
0 ❑ ❑ ❑
# Does the Plan include a BMP summary?
❑ ❑ ❑
# Does the Plan include a Spill Prevention and Response Plan (SPRP)?
❑ ❑ ❑
# Does the Plan include a Preventative Maintenance and Good Housekeeping Plan?
0 ❑ ❑ ❑
# Does the facility provide and document Employee Training?
N ❑ ❑ ❑
# Does the Plan include a list of Responsible Party(s)?
■ ❑ ❑ ❑
# Is the Plan reviewed and updated annually?
E ❑ ❑ ❑
# Does the Plan include a Stormwater Facility Inspection Program?
❑ ❑ ❑
Has the Stormwater Pollution Prevention Plan been implemented?
❑ ❑ ❑
Comment
Qualitative MonitorinA Yes No NA NE
Has the facility conducted its Qualitative Monitoring semi-annually? 0 ❑ ❑ ❑
Comment:
Analytical Monitoring Yes No NA NE
Has the facility conducted its Analytical monitoring? E ❑ ❑ ❑
# Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas? ❑ ❑ E ❑
Comment:
Permit and Outfalls Yes No NA NE
# is a copy of the Permit and the Certificate of Coverage available at the site? E Cl ❑ ❑
# Were all outfalls observed during the inspection? N ❑ ❑ ❑
# If the facility has representative outfall status, is it property documented by the Division? ❑ ❑ © ❑
# Has the facility evaluated all illicit (non stormwater) discharges? ❑ ❑ ■ ❑
Comment:
Page: 3

c�
AM=
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P. E.
Governor Director
December 4, 2012
Mike Doughtery,
Borg Warner Turbo System
PO Box 15075
Asheville, NC 28813
Dee Freeman
Secretary
Subject: NPDES Stormwater Permit Coverage Renewal
Borgwarner
COC Number NCGO30075
Buncombe County
Dear Permittee:
In response to your renewal application for continued coverage under stormwater General Permit NCG030000
the Division of Water Quality (DWQ) is forwarding herewith the reissued General Permit. This permit is
reissued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of
Agreement between the state of North Carolina and the U.S. Environmental Protection Agency, dated October
15, 2007 (or as subsequently amended).
The following information is included with your permit package:
• A new Certificate of Coverage (COC)
• A copy of General Permit NCG030000
• A copy of the Technical Bulletin for the General Permit
• Two copies of the Discharge Monitoring Report (DMR) Form
• Two copies of the Qualitative Monitoring Report Form
The General Permit authorizes discharges of stormwater, and it specifies your obligations for discharge
controls, management, monitoring, and record keeping. Please review the new permit to familiarize yourself
with all the changes in the reissued permit. Your facility has six (6) months from the time of receipt of the
permit to update your current SPPP to reflect all new permit requirements.
The first sample period of your permit begins January 1, 2013. Your facility must sample a "measureable
storm event" beginning during the periods beginning January 1 and July 1 of every year (or, if applicable,
report "No Flow," as outlined in Part III, Section I:). Also, please note that Tier 3 Actions in Part II of your
permit are triggered by benchmark exceedances on four occasions beginning on the effective date of this
permit and do not count prior exceedances.
The more significant changes in the General Permit since your last COC was issued are noted either in the
Draft Permit Fact Sheet that accompanied the public notice (http:Z/portal.ncdenr.org/wL*bLw g/ws/su/current-
notices), or in the Response to Comments / Summary of Changes and Technical Bulletin documents that are
posted on the Stormwater Permitting Unit's website with the new General Permit. Please visit
h_t ,portal.ncdenr.org/web/wq/ws/su/npdessw (click on `General Permits' tab) to review that information
for your specific General Permit carefully.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Ralegh, North Carolina 27604
Phone: [phone] FAX: [phone]
Internet: www.ncwaterQuality.orq
An Equal OpportunitylAffirmaWeAction Employer
NorthCarolina
Aaturallry

Mike Doughtery t
December 4, 2012
Page 2 of 2
Some of the changes include:
Part II:
• Section A: The Stormwater Pollution Prevention Plan (SPPP) section, if applicable, has been updated
to the most current language of our permits. Additional conditions for specific industry sectors have
been added to the SPPP requirements in some cases.
• Sections B, C: Failure to perform analytical stormwater monitoring may result in the Division requiring
that the permittee begin a monthly sampling scheme.
• Sections B, C: A lower TSS benchmark of 50 mg/1 for HOW, ORW, PNA and Tr Waters applies to these
more sensitive waters.
• Sections B, C. The monitoring parameter Oil & Grease (O&G) has been replaced by the parameter
Total Petroleum Hydrocarbons (TPH) for vehicle maintenance areas, and in some cases, other
analytical monitoring requirements.
• Sections 8, C, D: Inability to sample due to adverse weather must be recorded in the SPPP, or in
separate on -site records if your General Permit does not require an SPPP. Adverse weather is defined
in the "Definitions" section of the permit.
• Sections 8, C The term "Representative Storm Event" has been replaced by "Measurable Storm
Event." A measurable storm event is defined in the permit.
• Section D: if the permittee fails to respond effectively to problems identified by qualitative
monitoring, DWQ may require the permittee to perform corrective action.
Please review Parts III and IV to understand the Standard Conditions of your new NPDES General Permit,
including Compliance and Liability, Reporting, Monitoring and Records requirements; Operation and
Maintenance obligations; and Definitions. Please note that all samples analyzed in accordance with the terms
of this permit must be submitted to the Division on Discharge Monitoring Report (DMR) forms available on
the Stormwater Permitting Unit's website above. DMR forms must be delivered to the Division no later than
30 days from the date the facility receives the sampling results from the laboratory. Also note that existing
permittees do not need to submit a renewal request prior to expiration unless directed by the Division.
Your coverage under the General Permit is transferable only through the specific action of DWQ. This permit
does not affect the legal requirements to obtain other permits which may be required by DENR, nor does it
relieve the permittee from responsibility for compliance with any other applicable federal, state, or local law,
rule, standard, ordinance, order, judgment, or decree. If you have any questions regarding this permit
package, please contact the Division's Stormwater Permitting Unit at [phone].
Sincerely,,
��',.ct.dC� � I�F'•y�.L'ti'F
for Charles Wakild, P.E.
cc: DWQ Central Files
Stormwater Permitting Unit Files
Asheville Regional Office

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCGO30000
CERTIFICATE OF COVERAGE No. NCG030075
STORM WATER
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
Borg Warner Turbo System
is hereby authorized to discharge stormwater from a facility located at:
Borgwarner
1849 Brevard Rd
Arden
Buncombe County
to receiving waters designated as Clayton Creek, a class C waterbody in the French Broad River
Basin in accordance with the effluent limitations, monitoring requirements, and other
conditions set forth in Parts 1, 11, III, and IV of General Permit No. NCG030000 as attached.
This certificate of coverage shall become effective December 4, 2012.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this 41h day of December, 2012.
for Charles Wakild, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

8"Wornor Turbo
Engine Group Systenm
May 18, 2004
NCDENER
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
P. O. Box 1849 Brovard Telephone
15075 Road 828 684 4029
Asheville Arden Fox
North Carolina North Carolina 826 684 4128
28813 28784
Re: Facility Environmental Contact List -- Permit # NCG030075
To Whom It May Concern:
Please accept this letter as our notification to your agency of a change to our facility's
Environmental Responsible Party. Patrick Fiorentino has recently assumed the role of Plant
Manager for the BorgWamer Turbo Systems Asheville facility. Patrick will be responsible for the
overall operational and reporting compliance for our campus. He will be reviewing and approving all
annual reports, permit requests, and responses to all agency requests.
Please update your files to indicate the following contact information:
Patrick Fiorentino
Plant Manager
BorgWamer Turbo Systems
1849 Brevard Road
Arden, North Carolina 28704
Phone: [phone] x 4180
Please continue to copy me on all facility communications. Should you have any questions
regarding this requested change do not hesitate to contact my office.
Sincerely,
Lisa Foster -Morrow
Environmental, Health and Safety Specialist
BorgWamer Turbo Systems Asheville Campus
Cc: Patrick Fiorentino, BorgWamer Turbo Systems
James Verner, BorgWamer Turbo Systems

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Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
LISA FOSTER MORROW
SCH W ITZER
PO BOX 15075
ASHEVILLE, NC 28813
Dear Permittee:
Alan W. Klimek, P,E., Director
Division of Water Quality
August 23, 2002
Subject: NPDES Stormwater Permit Renewal
SCHW ITZER
COC Number NCG030075
Buncombe County
In response to your renewal application for continued coverage under general permit NCG030000. the Division of
Water Quality (DWQ) is forwarding herewith the reissued stormwater general permit- This permit is reissued
pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement
between the state of North Carolina and the U.S. Environmental Protection Agency, dated December 6. 1983.
The following information is included with your permit package:
* A new Certificate of Coverage
* A copy of General Stormwater Permit NCG030000
* A copy of the Analytical Monitoring Form (DMR)
* A copy of a Technical Bulletin for the general permit
Your coverage under this general permit is not transferable except after notice to DWQ. The Division may require
modification or revocation and reissuance of the Certificate of Coverage, This permit does not affect the legal
requirements to obtain other permits which may be required by DENR or relieve the permittee from responsibility
for compliance with any other applicable fEderal, state, or local law, rule, standard. ordinance, order, judgment, or
decree.
If you have any questions regarding this permit package please contact Bill Mills of the Central Office Stormwater
and General Permits Unit at [phone], ext. 548
Sincerely,
Bradley Bennett, Supervisor
Stormwater and General Permits Unit
cc: Central Files
Stormwater & General Permits Unit Files
Asheville Regional Office
d A
NCDEAIR
N. C. Division of Water Quality 1617 Mail Service Center Raleigh, NO 27699-1617 [phone] Customer Service
1- 800-623-7748

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCGO30000
CERTIFICATE OF COVERAGE No. NCG030075
STORMWATER DISCHARGES
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1. other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the
Federal Water Pollution Control Act, as amended.
BORG WARNER TURBO SYSTEM
is hereby authorized to discharge storinwater from a facility located at
SCHWITZER
1849 BREVARD ROAD
ARDEN
BUNCOMBE COUNTY
to receiving waters designated as Clayton Creek% a class WS-IV stream. in the French Broad River Basin in
accordance with the effluent limitations. monitoring requirements, and other conditions set forth in Parts 1. I1. I11,
IV, V, and VI of General Permit No. NCG030000 as attached.
This certificate of coverage shall become effective September I, 2002.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day August 23, 2002.
for Alan W. Klimek, P-E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
W A rERpG
65 7
JOHN W CARTER
SCH W ITZER
PO BOX 15075
ASHEVILLE, NC 28813
Dear Perinitice,
Gregory J. Thorpe, Ph.D.
Acting Director
Division of Water Quality
December 27. 2001
Subject: NPDES Stormwater Permit Renewal
SCHWITZER
COC Number NCG030075
Buncombe County
Your facility is currently covered for stormwater discharge under General Permit NCG030000, This permit expires
on August 31. 2001 The Division staff is currently in the process of rewriting this permit and is scheduled to have
the permit reissued by late summer of 2002. Once the permit is reissued. your facility would be eligible for
continued coverage under the reissued permit.
In order to assure your continued coverage under the general permit. you must apply to the Division of Water
Quality (DWQ) for renewal of your permit coverage. To make this renewal process easier, we are informing you in
advance that your permit will be expiring. Enclosed you will find a General Permit Coverage Renewal
Application Form. The application must be completed and returned by March 4, 2002 in order to assure continued
coverage under the general permit.
Failure to request renewal within this time period may result in a civil assessment of at least $250.00. Larger
penalties may he assessed depending on the delinquency of the request- Discharge of Stormwater from your facility
without coverage under a valid stormwater NPDES permit would constitute a violation of NCGS 143-215.1 and
could result in assessments of civil penalties of up to $10,000 per day.
Please note that recent federal legislation has extended the "no exposure exclusion" to all operators of industrial
facilities in any of the 11 categories of "storm water discharges associated with industrial activity," (except
construction activities). if you feel your facility can certify a condition of "no exposure", i.e. the facilty industrial
materials and operations are not exposed'to stormwater, you can apply for the no exposure exclusion. For additional
information contact the Central Office Stormwater Staff member listed below or check the Stormwater & General
Permits Unit Web Site at hitp:Hh2o.enr.state.ne.us/su/stormwater.html
If the subject stormwater discharge to waters ol'the state has been terminated, please complete the: enclosed
Rescission Request Form. Mailing instructions are listed on the bottom of the form. You will be notified when the
rescission process has been completed.
If you have any questions regarding the permit renewal procedures please contact Jim Reid of the Asheville
Regional Office at 828-251-6208 or Bill Mills of the Central Office Stormwater Unit at [phone], ext. 548
Sincerely.
Bradley Bennett, Supervisor
Stormwater and General Permits Unit
cc: Central Files
Asheville Regional Office
N. C. Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 (919) I33-7015
ANEW;
NCpENR
Customer Service
1- 800-623-7748

+- - T'' State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
October 1, 1997
JOHN W. CARTER
SCHWITZER
PO BOX 15075
ASHEVILLE, NC 28813
1 • •
I D FE iV F I
Subject: Reissued Stormwater General Permit for Certificate of Coverage No. NCG030075
Buncombe County
Dear Permittee:
In response to your renewal application for continued coverage under the subject permit, the Division
of Water Quality (DWQ) is forwarding herewith the reissued stormwater general permit. This permit
is reissued pursuant to the requirements of North Carolina General Statute 143-215 .1 and the
Memorandum of Agreement between North Carolina and the US Environmental Protection agency
dated December 6, 1983.
The following information is included with your permit package:
■ A copy of the stormwater general permit.
■ A Stormwater Pollution Prevention Plan Certification Form. This form certifies that you have
developed and implemented the Stormwater Pollution Prevention Plan (SPPP) required in your
permit. This form must be completed and returned to the Division within 30 days of receipt of
this letter. DO NOT send the SPPP with the signed form.
■ Five copies of Analytical Monitoring forms.
r Five copies of Qualitative Monitoring forms.
■ A copy of a Technical Bulletin on the stormwater program with outlines program components
and addresses frequently asked questions.
■ A corrected Certificate of Coverage if you indicated a name or address change on the Renewal
Form returned to the Division.
Your certificate of coverage is not transferable except after notice to DWQ. The Division of Water
Quality may require modification or revocation and reissuance of the certificate of coverage.
This permit does not affect the legal requirements to obtain other permits which may be required by
DWQ or permits required by the Division of Land Resources, Division of Air Quality, Coastal Area
Management Act or any other Federal or Local governmental permits that may be required.
If you have any questions concerning this permit or other attached documents, please contact the
Stormwater Group at telephone number [phone]
Sincerely,
is
for A. Preston Howard, Jr., P. E.
P.O. Box 29535. Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

ii
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG030000
CERTIFICATE OF COVERAGE NO. NCG030075
STORMWATER DISCHARGES
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and
the Federal Water Pollution Control Act, as amended,
SCHWITZER
is herby authorized to discharge stormwater from a facility located at:
BREVARD ROAD HIGHWAY 191
ASHEVILLE, NC
BUNCOMBE COUNTY
to receiving waters designated as Clayton Creek in the FRENCH BROAD River Basin
in accordance with the effluent limitations, monitoring requirements and other conditions set forth in Parts 1,
1I,11I and IV of General Permit No. NCG030000 as attached.
This Certificate of Coverage shall become effective September 15, 1997
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day October 1,1997
for A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authorization of the Environmental Management Commission

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
May 28, 1993
Edward H. Flood, Jr.
Schwitzer
P O Box 15075
Asheville, NC 28715
AAOONE%% A00ft%
C)EHNF=1
Subject: General Permit No. NCG030000
Schwitzer
COC NCGO30075
Buncombe County
Ii•-=a V • .
In accordance with your application for discharge permit received on September 28, 1992, we are
forwarding herewith the subject certificate of coverage to discharge under the subject state - NPDES general
permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-215 .1 and the
Memorandum of Agreement between North ,Carolina and the US Environmental Protection agency dated
December 6, 1983.
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to request an individual permit by submitting an individual permit
application. Unless such demand is made, this certificate of coverage shall be final and binding.
Please take notice that this certificate of coverage is not transferable except after notice to the Division
of Environmental Management. The Division of Environmental Management may require modification or
revocation and reissuance of the certificate of coverage.
This permit does not affect the legal requirements to obtain other permits which may be required by the
Division of Environmental Management or permits required by the Division of Land Resources, Coastal Area
Management Act or any other Federal or Local governmental permit that may be required.
If you have any questions concerning this permit, please contact Mr. Steve Ulmer at telephone number 919/733-
5083.
cc:
Sincerely,
OrE�r, �i Signed By
Coleen H. Sullins
A. Preston Howard, Jr., P. E.
Asheville Regional Office
P.O. Box 29535, Raleigh, North Carolina 27626.0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 501/16 recycled/ 10% post -consumer paper

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
;_ _ i. i ►i ► I II
STORMWATER DISCHARGES
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the
Federal Water Pollution Control Act, as amended,
Schwitzer
is hereby authorized to discharge stormwater from a facility located at
Schwitzer
Brevard Road, NC Hwy 191
Asheville
Bucombe County
to receiving waters designated as Clayton Creek in the French Broad River Basin
in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III
and IV of General Permit No. NCG030000 as attached.
This Certificate of Coverage shall become effective May 28, 1993.
This Certificate of Coverage shall remain in effect for the duration of the General Permit._
Signed this day May 28, 1993.
Original Signed 8Y
Goleen H. Sullins
A. Preston Howard, Jr., P.E., Director
Division of Environmental Management
By Authority of the Environmental Management Commission

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