NCG030433_COMPLETE FILE - HISTORICAL_20180711

STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
/v C� (� 3��{ 3 3
DOC TYPE
�, HISTORICAL FILE
❑ MONITORING REPORTS
DOC DATE
❑ a l7I 0 �
YYYYMMDD

CREE
July 3, 2018
NCDEQ
Division of Stormwater Management
DEMLR
11612 Mail Service Center
Raleigh, NC 27699-1612
RE: Follow-up letter for stormwater release
Dear Sir/Madam;
4600 Silicon Drive
Durham, NC 27703 USA
Main: [phone]
j1C41 a 3dzi 33
This letter follows our telephone conversation on 7/2/2018 of a closed -loop cooling water release to Stormwater_
Cree experienced a release of closed -loop cooling water on Monday, July 2, 2017 at its Durham facility located
at 4600 Silicon Drive. Our investigation revealed that the cooling water flange seal failed, allowing for cooling
water to spray through the resulting gap. Upon discovery at 7:00am on Monday, trained site emergency
personnel were dispatched to the scene to contain any further spill runoff, and the piping was fixed with
urgency.
Approximately 1,000 to 2,000 gallons of cooling water was released over the course of a day, before the issue
was discovered. The released water saturated the ground beneath it, and flowed down the asphalt parking lot to a
storm drain. Subsequent examination of the affected area revealed no observable impact to the surrounding
environment.
The flange, seal, and related piping were permanently replaced on Monday by 12:OOPM. This location, and
analogous systems around the site, will be emphasized on future facilities rounds for closer inspection to prevent
similar failures.
Please let me know if you have any questions or concerns.
Thank you and best regards;
bonna Lazzari
Environmental M
Cree, Inc.
RECEIVED
JUL 112016
DENR-LAND QUALITY
STORMWATER PERMITTING

■ IL KINF®R
May 23, 2017
NCDEQ
Division of Stormwater Management
DEMLR
1612 Mail Service Center
Raleigh, NC 27699-1612
RE. Follow-up letter for stormwater release
Dear Sir/Madam;
4600 Silicon Drive, Durum, NC 27703 USA
Main: [phone]
RECEIVED
MAY 2 6 2017
LAND DUALITY SECTION
This letter follows our telephone conversation on 5/12/2017 of a cooling tower overflow release to ground and
stormwater.
Cree experienced a release of cooling tower water on Friday, May 12, 2017 at its Durham facility located at
4600 Silicon Drive. Our investigation revealed that a float level on the cooling tower failed, causing a large
amount of make-up water to feed to the tower, which caused the spill to ground and stormwater. The overflow
was stopped, a spill emergency was declared, and trained site emergency personnel were dispatched to the scene
to contain any further spill runoff.
The cooling water flowed down an adjacent asphalt driveway, into a grassy swale, and approximately 10 gallons
entered a storm drain. Subsequent examination of the affected area revealed no observable impact to the
surrounding environment.
Measures have been taken to perform preventive maintenance on the cooling tower float levels to prevent a
future release.
Please let me know if you have any questions or concerns.
Thank you and best regards;
Sincerely,
-Donna Lazzari
Environmental Manager
Cree, Inc.
060 015 DtO5

N66o30 H 33
C'R E'E :ry
October 24, 2016
CERTIFIED MAIL —RETURN RECEIPT REQUESTED
Robin Dail
NC State Emergency Operations Center
1636 Gold Star Dr
Raleigh, NC 27607
Re: Fallow -Up Letter for Reportable Quantity Release
4600 SIRoon Drive
Durham, NC 27703 USA
Main, [phone]
D[ @��]�
oc� 2 5 2016
Cree reported a possible reportable quantity release of Ammonia to the atmosphere on October 19, 2016 at 3:16
pm. There were no employee exposures or injuries. An evacuation of one building (Building 6) was made from
2:31 pm to 4:07 pm.
Ammonia has a reportable quantity threshold of 100 pounds. An unknown release was originally reported.
However after a more thorough investigation Cree's estimate is 1.45 pounds total release of ammonia. We
estimate that approximately 20% of this release (0.3 pounds) was to atmosphere, with the remainder captured in
emergency deluge water which was directed to our wastewater treatment system.
The release occurred from an outside area which contains ammonia tanks. The tanks are located under a canopy,
and access to the tanks is limited via card access and chain link fences. Ammonia tanks in this area are
continuously monitored with a gas detection system. Upon detecting ammonia concentrations above 25 ppm, a
water deluge system activated to mitigate the release.
Our investigation has determined that the cause of the release was due to a faulty 0-ring on the filter housing for
the system. The release began at 2:26 pm on October 19, 2016 and continued until the filter housing was
completely depressurized. The ammonia system shut down immediately after the gas vapor was detected, but the
ammonia gas detector indicated a continuing higher than normal level of ammonia inside the canopy for the next
hour. Cree made the call to the National Response Center for a potential reportable quantity as we were unsure if
the release was continuing. For safety reasons, we did not allow any employees go near the system while the
deluge system was operating.
After the deluge system stopped, we determined that our wastewater equalization basin had reached 100 percent
capacity and the combination of process wastewater and deluge water entered the overflow pipe from the
equalization basin into the stormwater system. Cree's estimate of wastewater spilled to the stormwater discharge
is 860 gallons. Testing of our wastewater in the equalization basin immediately after the incident was performed
by the Durham County POTW. The ammonia concentration was approximately 5ppm, below our normal
wastewater concentration.
Cree has taken measures to repair the faulty O-ring on the filter housing, and establish a preventive maintenance
schedule to prevent a recurrence of this type of incident.
Sincerely;
C
to Lazzari
Environmental Mana 7,Cree

CC:
Robin Dail, NC State Emergency Operations Center
David Marsee,burham'County Emergency Management Agency, LEPC
Greg Haiper;.US Environmental'Protection Agency (EPA), Region IV
Thomas Steelman, DPS Risk Management Program
Bradley Bennett, DEQ Division of Water Quality
Buster Towell, DEQ Division of Water Quality
Cheng Zhang, DEQ Division of Water Quality
Mike Reid;DEQ_Division of Air Quality
Jim Azerelo, City of Durham Stormwater

Georgoulias. Bethany
From: Lloyd Smith <[e-mail]>
Sent: Wednesday, February 24, 2016 9:17 AM
To: Georgoulias, Bethany
Subject: RE: Recent construction of detention pond and new outfalls - Cree North Campus
Project
Bethany;
That is correct. We should be able to use the same L/L as both sites are contiguous.
From: Georgoulias, Bethany[mailto:[e-mail]]
Sent: Wednesday, February 24, 2016 8:29 AM
To: Lloyd Smith
Subject: RE: Recent construction of detention pond and new outfalls - Cree North Campus Project
Lloyd,
Do you just want us to use the same latitude -longitude coordinate for all seven outfalls at the main Durham site? And
the Durham main site is under the COC no. NCG030433, right? I don't want to confuse the two sites.
Thanks,
Bethany
Bethany Georgoulias
Environmental Engineer
Stormwater Permitting Program, Division of Energy, Mineral, and Land Resources
N.C. Department of Environmental Quality
919 807 6372 office
bethany.p_eor ou�a,ncdenr.gov
1612 Mail Service Center, Raleigh, NC 27699-1612 (mailing)
512 N. Salisbury Street, Raleigh, NC 27604 (location)
Website: http://portal.ncdenr.ory-/web/lr/stormwater
i -5" 'Nothing Compares
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Lloyd Smith [mailto:Llovd [e-mail]]
Sent: Tuesday, February 23, 2016 2:43 PM
To: Georgoulias, Bethany<[e-mail]>
Subject: RE: Recent construction of detention pond and new outfalls - Cree North Campus Project

Bethany;
With all this considered, it appears, at least for the immediate present, that no industrial activity is pla. nnedrfor::1
North Campus at this time, nor in the foreseeable future In effect; I"will have a completed site withfa;reten@tion,
(instead.of"detention) and'three new outfalls ti��add'.to the l7urham main campus_ when/if industrial activity resi
Stormwater runoff drains into Stirrup Iron Creek, which flows southward into Crabtree Lake/ Crabtree Creek at the
North Campus and Durham main campus. Permitted outfalls on the Fain,D'urham site (001,002,003a.004a.005.006.007)
are currently being monitored semi-annually, Lattitude/longitude for the Durham site is 35:54.0.832N/78:50:23.870W 7
(Degrees: Minutes: Seconds). f K , V7 F 3
Hope this is helpful. I suppose at this point I will continue to sample the existing outfalls at Durham, then wait for
completion of the North Campus property. Vu 5}, KS-c.e[ _ r
From: Georgoulias, Bethany fmailto:bethpny.4eorgoulias@ncdear_aov]
Sent: Tuesday, February 23, 2016 12:01 PM
To: Lloyd Smith; Holley, John
Cc: Bennett, Bradley
Subject; RE. Recent construction of detention pond and new outfalls - Cree North Campus Project
Hi Lloyd,
There's typically no need to modify your NPDFS Stormwater Permit when outfalls are added, at least for now. For now,
your only obligation is to revise the company's SPPP documents/maps and sampling regime accordingly. If these affect
any Representative Outfall Status (ROS) designations, we can revisit ROS at your facility. If the new outfalls just need to
be added to the monitoring schedule, simply start sampling and report them as they begin discharging stormwater
associated with industrial activity (that's the time they become regulated under your current NCG03 permit).
That being said, changes are coming later this year. By December 2016, the federal e-Reporting Rule will require all
NPDFS permittees to report DMR data electronically. The Stormwater Program here in NC is beginning a large effort to
develop and implement a system so that North Carolina can be the recipient of those data (rather than having
permittees enter data into EPA's system). Long story short: a new electronic reporting system is coming later this
year, and soon we will have to collect information about each of your specific outfalls to get your permit set up for
DMR data e-Reporting. Communication will go out to all permittees in our program in the months to come.
So, in the meantime, it would be very helpful to get a list of all the outfalls that you monitor at your site. If there are
outfalls with ROS (meaning others represented by those are not monitored), let me know which outfalls are which
(monitored vs. not monitored). You do not need to include any outfalls without industrial activity (like employee parking
lots only) --those are not regulated.
I will need:
Outfall number/name (e.g., 001)
Whether the outfall is monitored or not monitored (because of ROS designation at the site)
Latitude
Longitude
Name of receiving waters for that outfall. An index number for that waterbody would be very helpful for me to have,
too, which you can find here:
h_:11 ncdenr.maps.arcgis.eom{apes/webappviewer/index.htm!?id=6e125ad7628f434694e259c80dd64265
Thanks so much, Lloyd!

A.
Bethany
Bethany Georgoulias
Environmental Engineer
Stormwater Pennitting Program, Division of Energy, Mineral, and Land Rdsources
N.C. Department of Environmental Quality
919 807 6372 office
bethany.georgouliasncdenngov
1612 Mail Service Center, Raleigh, NC 27699-16I2 (mailing)
512 N. Salisbury Street, Raleigh, NC 27604 (location)
Website: http://portal.ncdenr.org/web/Ir/stormwater
E �i^Nothing Compares
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Lloyd Smith fmailto.Llovd [e-mail]
Sent: Tuesday, February 23, 201610:46 AM
To: Holley, John <[e-mail]>
Cc: Georgoulias, Bethany<[e-mail]>
Subject: Recent construction of detention pond and new outfalls - Cree North Campus Project
Hello John;
Thank you for your guidance recently on the ultrapure water release to Cree's storm water outfall on 2/5/2016. Cree has
taken the appropriate actions as outlined in our telephone conversation, and continues its vigilance to prevent further
incidents.
On another subject, Cree is seeking to add to our current NPDES permit (General Permit NCGO030000, NPDES ID
#NCG030433) additional outfalls and a recently constructed wet detention pond at its North Campus location (a
contiguous property.) However, the final BMP for this project has not yet been approved by the City of Durham, and
may be delayed until warmer weather permits completion.
I assume addition of this project to our current permit should be made after the City sign off, but wanted to ensure this
is the correct procedure under DEQ/DWQ/DEMLR regulations to include all responsibilities for monitoring, testing, and
submittal of documents for this new construction as outlined under our current permit for the main campus.
Thank you for your assistance in this matter. Please contact me with any questions or concerns.
Lloyd A. Smith
Environmental Engineer I Environmental Health & Safety (EHS)
CREE=
www.crce.com
4600 Silicon Dr., Durham, NC 27703

0: [phone] 1 M: [phone]
This e-mail message, including any attachments and previous email messages sent with it, contains
CONFIDENTIAL and PROPRIETARY information of Cree, Inc. or its subsidiaries and may be legally
PRIVILEGED. You may not use, disclose, reproduce or distribute such information without Cree's
authorization. If you have received this message in error, please notify the sender immediately and permanently
delete the original message, its attachments and any copies thereof.
This e-mail message, including any attachments and previous email messages sent with it, contains
CONFIDENTIAL and PROPRIETARY information of Cree, Inc. or its subsidiaries and may be legally
PRIVILEGED. You may not use, disclose, reproduce or distribute such information without Cree's
authorization. If you have received this message in error, please notify the sender immediately and permanently
delete the original message, its attachments and any copies thereof.
This e-mail message, including any attachments and previous email messages sent with it, contains
CONFIDENTIAL and PROPRIETARY information of Cree, Inc. or its subsidiaries and may be legally
PRIVILEGED. You may not use, disclose, reproduce or distribute such information without Cree's
authorization. If you have received this message in error, please notify the sender immediately and permanently
delete the original message, its attachments and any copies thereof.
4

ATECD'Em
RFR
North Carolina Department of Environment and Natural Resources
Pat McCrory J Donald R. van der Vaart
Governor Secretary
June 29, 2015
Ms. Donna Lazzari, Environmental Manager
CREE
4600 Silicon Drive
Durham, North Carolina 27703
Dear Ms. Lazzari:
n
JUL
INC DENR Ra10Gh
Subject: CREE, Inc. - RTP
NPDES Permit NCG030541
Relief from Advanced Tier Response
Durham County
Mr. Lloyd Smith of CREE contacted our office regarding the oversight in granting regulatory
relief of monthly sampling prompted by exceedances of zinc and copper benchmarks at
CREE's RTP facility. As his request summarized, Mr. Dave Parnell and Ms. Bethany
Georgoulias met with you and other CREE representatives in August 2014 to discuss CREE's
request for relief of Tier 2 monthly monitoring for zinc and copper for both this facility in RTP
and the Durham facility on Silicon Drive. After sufficient follow-up to Raleigh Regional Office
(11110) staff on questions about pH measurements, the RRO granted relief from advanced Tier
sampling for these parameters on September 24, 2014; however, that letter only referenced
the Durham facility (Silicon Drive) covered under COC No. NCG030433. Ms. Georgoulias and
Mr. John Holley of the RRO verified that correspondence from Mr. Parnell and conversations
with the Central Office in 2014 did not suggest a reason for omitting approval for the RTP
location (NCG030541), and that RRO's intent was to approve regulatory relief at both facilities.
Please maintain this letter in your Stormwater Pollution Prevention Plan (SPPP) to document
that semi-annual monitoring for the remainder of the permit term was approved for this
location at 3026 Cornwallis Road In RTP at the same time that relief was granted for the
Durham facility on Silicon Drive as documented in the letter from the Raleigh Regional Office
dated September 24, 2014 (attached). All terms and conditions in that letter also apply to the
RTP facility. As a reminder, this decision applied only to the zinc and copper benchmarks.
A benchmark exceedance of any other parameter listed in your permit will trigger the tiered
response actions as described in the NCG030000 General Permit.
Division of Energy, Mineral, and Land Resources
Energy Section • Geological Survey Section • Land Quality Section
512 North Salisbury Street, Raleigh, North Carolina 27604 • Internet: htta:/loortal.ncdenr.org/web/ir/
Mailing Address:1612 Mail Service Center, Raleigh, North Carolina 27699-1612.919-707-92001 FAX: [phone]
An Equal Opportunity 1 Affirmative Action Employer — 50% Recycled L 10% Post Consumer Paper

Ms. Lazzari, CREE
June 29, 2015
Should you have any questions or comments regarding this letter, please contact Bethany
Georgoulias at [phone] or Bethany izeorgouliaa(@ncdenr.gQy or John Holley of the
Raleigh Regional Office at [phone] or [e-mail].
Sincerely,
Bradley Bennett
Supervisor, Stormwater Permitting Program
DEMLR Central Office
cc: Stormwater Permitting Program Files
DEMLR Raleigh Regional Office Stormwater Files

Georgoulias. Bethany
From: Georgoulias, Bethany
Sent: Saturday, June 27, 2015 9:29 AM
To: Lloyd Smith
Subject: Re: Tier Response
Lloyd,
I received a response from John Holley that there were no issues he recalled with approving the relief for the
RTP facility. I will write a letter to you all next week to document the circumstances and follow up with
Cree. I'll send a copy electronically before I mail it out. I'll get that to you before the holiday on Friday, July
3 rd.
Regards,
Bethany Georgoulias, Environmental Engineer
NCDENR / DEM1_R / Stormwater Permitting Program
1612 Mail Service Center, Raleigh, NC 27699-1612
512 N. Salisbury Street, Raleigh, NC 27604
919 / 807-6372 (phone); 919 / 807-6494 (fax)
Website: http://portal.ncdeiir.orv,/web/lr/stormwater
1•. rnvil corres7iondenee to and from this uddre.ss• nro,r he sul?jeo to lire North Carolina Publir• !records law arrd rear bedisclosed 1u drird put ties.
From: Georgoulias, Bethany
Sent: Thursday, June 25, 2015 3:34 PM
To: Lloyd Smith
Subject: RE: Tier Response
Lloyd,
I was in the office only briefly today to pull both files and realized that we never even got the copy of that letter here in
Central Office.
I also don't remember that Dave had any objections to relieving the frequency at the RTP facility as well. I have the
email correspondence between us all, including his last one on Sept 12, 2014, where he concurred that Cree had
addressed concerns. I responded with my agreement on Sept 16, 2014. I'll be in touch with John Holley first thing
Monday to verify that no other concerns came up before he signed that letter (or if there was another letter that didn't
go out for some reason). Most likely we here in Central Office will follow up with a letter to you. I'll keep you posted.
Thanks,
Bethany
1\\

Bethany Georgor.tlias, Environmental Engineer
NCDENR 1 Division of Energy, Mineral, and Land Resources
Stormwater Permitting Program
1612 Mail Service Center, Raleigh, NC 27699-1612
512 N. Salisbury Street, Raleigh, NC 27604
919 1807-6372 (phone); 919 / 807-6494 (fax)
Website: htip:Hportal.ncdenr.orizlweb/ir/stortnwater
E-mail correspondence to and fi-ont tlri.s address may be subject to the North Carolina Public Records last, and muv he disclosed to third purtles.
From: Lloyd Smith [mailto:Lloyd [e-mail]]
Sent: Thursday, June 25, 2015 1:26 PM
To: Georgoulias, Bethany
Subject: Tier Response
Bethany;
Thanks for looking into the Tier response relief for both the RTP and Durham sites. I remember David Parnell giving me
the ok to,cease the accelerated sampling and return to normal, but as I indicated, the letter sent from John Holley was
for the Durham site only. As an aside, should we continue with the Tier sampling for the RTP site? At this juncture we
have only been performing normal semi-annual DMR sampling for both locations.
Best regards-LLS
Lloyd A. Smith
Environmental Engineer I Environmental Health & Safety (EHS)
CREE=�
www.cree.corn
4600 Silicon Dr., Durham, NC 27703
0: [phone] 1 M: [phone]

Georgoulias, Bethany
From: Lloyd Smith <[e-mail]>
Sent: Friday, June 19, 2015 9:08 AM
To: Georgoulias, Bethany
Subject: FW: Tier 3 relief
Attachments: ReturntonormalswtestingforCuandZn.pdf; Request letter Aug 2014 DENR-URS cmnts-
ver3.docx
Hello Bethany;
I was hoping you might assist with the request below I sent to John Holley in January concerning relief from Advanced
Tier stormwater testing for our RTP and Durham sites. As you remember, representatives from Cree, David Parnell and
yourself met for a presentation for relief from Cu and Zn testing at both Cree sites on 8/1/2014. Apparently relief was
granted for Durham, but not RTP as was originally requested. I have had one follow up telephone conversation with John
several weeks ago, but no communication since. Please let me know if you could assist in this matter.
Many thanks_LLS
From: Lloyd Smith
Sent: Wednesday, April 15, 2015 10:25 AM
To: [e-mail]
Subject: FW: Tier 3 relief
Hello John;
Here is the original email sent to your attention.
Many thanks-LLS
From: Lloyd Smith
Sent: Wednesday, January 14, 2015 4:04 PM
To: '[e-mail]'
Subject: Tier 3 relief
Hello John;
I am in receipt of the attached letter from your department for relief from Advanced Tier stormwater testing for the
Silicon Drive location dated 9/24/2013. This letter was forwarded to me from David Parnell when he was with the DWQ.
A meeting was held at the Raleigh office on August 1 with David Parnell and Bethany Georgoulias to present Cree's
case, with a formal request letter (also attached) following the meeting. This letter requested Tier relief for the RTP
site at 3026 Cornwallis Road along with Silicon Drive. However, the September letter from DWQ states relief only
for NPDES Permit NCGZ030433 (Silicon Drive), and not also NPDES Permit NCG030541 (3026 Cornwallis Road).
Since the request letter specifically asks for relief for both sites, Cree thinks this may be an oversight from the
agency, and asks for further explanation in the form of a letter stating similar conditions for the Cornwallis
Road location.
Please let me know if you have any questions or concerns.

Lloyd A. Smith AS, BA, BS, CHMM
Cree, Inc.
Environmental Health and Safety Department
[phone] (office)
[phone] (fax)
CREE*,,

iro 44
Incident Report
�gtrblap of wow Resources
Report Number: 201500260
Incident Type : Other
On -Site Contact:
Category Incident
First/Mid/Last Name
Incident Started : 02/22/2015
Company Name
Country : Durham
Phone:
city:
Pager/Mobile Phone:
Farm # :
Responsible Party ;
Owner
Reported By
Permit:
First/Mid/Last Name: Lloyd Smith
Facility:
Company Name: ,
First Name
Address: Cree
Middle Name ;
Last Name ;
City/State/Zip
Address;
Phone: [phone]
Page/Mobile Phone: 1
City/State/Zip
Phone;
Materfai Category: Estimated Qty: UOM:
DD:MM:SS Decimal
Latitude:
Longtitude
Location of Incident : 4600 Silicon Drive
Address : 4600 Silicon Dr
CItylStatelZip . RTP
Chemical Name
Position Method :
Position Accuracy
Position Datum :
NC 27709
Reportable Qty.lbs. Reportable Qty.kgs.
Report Created 2/23115 2:45 pm page: 1

Cause/Observation : Directions
Chiller water pipe burst due to cold weather - discharge out permitted
stormwater outfall - NCGO30433
Action Taken : Comments
Recorded 24 hour report from Mr. Smith of Cree Engineering.
Communicated to RRO DEMLR and placed report in Stormwater file.
Incident Questions :
Did the Material reach the surface Water? Unknown
Surface Water Name ?
Did the Spill result in a Fish !Gill? Unknown
If the Spill was from a storage tank indicate type
Containment? Unknown
Cleanup Complete? Unknown
Water Supply Wells within 1500ft : Unknown Groundwater Impacted: Unknown
Event Type
Report Entered
Report Received
Referred to Regional Office - Primary Contact
Incident Start
Conveyance:
Event Date
2015/02/23 2:27:24
2015/02/23 11:45:00
2015/02/23 11:45:00
2015/02/22 4:30:00
Estimated Number of fish?
(Above Ground or Under Ground)
Due Date Comment
Report Created 2123115 2:45 pm Page: 2

Standard Agencies Notified
Agency Name Phone First Name M.I. Last Name
Other Agencies Notified :
Agency Name Phone First Name M.I. Last Name
DWQ Information :
Report Taken By: Report Entered By:
Autumn H Romanski Autumn H Romanski
Phone:
Date/Time: 2015/02/23 11:45:OOAM 2015/02/23 02:27:24PM
Referred Via: Phone
Did DWQ request an additional written report?
If yes, What additional information is needed?
Contact Date
Contact Date
Regional Contact:
Mack K Wiggins
2015/02/23 11:45: OOAM
Mail
Report Created 2123M 5 2:45 pm Page : 3

4600 Silicon Drive, Durham, NC 27703 USA
Main: [phone]
September 25, 2014
Mr. David Parnell
Environmental Senior Specialist
North Carolina Department of Environment & Natural Resources
Division of Energy, Minerals, and Land Resources
Raleigh Regional Office
3800 Barrett Drive
Raleigh, NC 27609
RE: Spill Release at Cree Facility
Dear Mr. Parnell;
This letter is to follow up our telephone conversation on 9/24/2014 of release of cooling tower water at
Building 6 to a storm drain leading to our stormwater retention pond. The total release of cooling tower
water was estimated to be approximately 3000 gallons.
The release occurred as a night facilities technician was transferring makeup water to the cooling tower
during a routine maintenance activity, and inadvertently overfilled the operating sump below the
tower. The spill was reported to EHS offices @11:30 that morning.
After careful investigation, it was determined that no RQ (Reportable Quantity) of chemical contained
in the release was reached. Further, pH of the material was noted to be 6.9, and posed no hazard to any
biolife in the retention pond or Stirrup Iron Creek. Cree will continue to monitor the adjacent
watershed for any evidence of impact from the release. The telephone notification on 9/24/2014 serves
as 24 hour notification for this event.
Cree will forward this letter in email and certified letter format for your records. Please contact me at
919-47-5145 for any further questions or concerns
Sincerely,
Donna Lazzari
Environmental Manager
Cree, Inc.
Cc: David Parnell, Jim Azarelo, Durham City/County Emergency Management

AdM goam wod)ioou

Pat McCrory
Governor
=40A
RMENK
North Carolina Department of Environment and Natural Resources
September 24, 2014
Ms. Donna Lazzari, Environmental Manager
CREE
4600 Silicon Drive
Durham, North Carolina 27703
Subject: CREE - Silicon Drive
NPDES Permit NCG030433
Relief from Advanced Tier Response
Durham County
Dear Ms. Lazzari:
John E. Skvada, III
Secretary
In response to your discussions with NCDENR Land Quality Section staff, concerning multiple
exceedances of the benchmark values for zinc and copper, Dave Parnell of the Land Quality
Section - Stormwater staff, conducted a compliance evaluation inspection (CEI) on April S,
2014. The inspection was conducted to determine compliance with the conditions of your
NPDES NCG030433 Stormwater Permit and to discuss any actions that have been or could be
taken to identify and eliminate potential sources of Zinc and Copper related to facility
operations.
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. At the time of the inspection, your facility was found to be in compliance with the
tiered response actions and other conditions of the permit. During the inspection, you are
reported to have relayed to Mr. Parnell that you have been unable to determine the source of
the higher levels of the metals, found at the Silicon Drive outfalls. It is notable in this case,
that CREE does not use copper or zinc in the manufacturing processes and the facility has
conducted extensive reviews of your site for external sources of the metals. Your diligence in
attempting to determine and eliminate the zinc source and your continued communication
with Raleigh Regional Office staff is commendable and is documented back to the April 8
compliance evaluation inspection.
Division of Energy, Mineral, and Land Resources
Energy Section • Geological Survey Section • land Quality Section
1612 Mail Service Center, Raleigh. North Carolina 276W1612.919-707.9200 / FAX: [phone]
512 North Salisbury Street, Raleigh, North Caroling 27604 - Internet: http:llpos�al. r enr.orglwebllr!
An Equal Opportunity 1 Affirmative Action Employer - 50% Recycied t 10% Post Consumer Paper

Rased on the aforementioned items, DEN Land Quality Section is granting regulatory relief in
the form of a collapsed Tier 2-Tier 3 response. Upon receipt of this letter, CREE - Silicon
Drive, may resume the permit specified semi-annual analytical monitoring for the remainder
of the current permit term - which ends October 31, 2017. This decision applies only to the
zinc and copper benchmarks. A benchmark exceedance of any other parameter listed in
your permit will trigger the tiered response actions as described in your permit.
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 CREE. If industrial practices change and zinc & 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.
Retain and append this letter to your Stormwater Pollution Prevention Plan (SPPP) or permit.
Should you have questions or comments regarding the CEI or this letter, please contact Dave
Parnell at [phone] or [e-mail].
Sincerely,
cc: Stormwater Permitting Program Files
DEMLR Raleigh Regional Office Stormwater Files

Parnell, David A/C 3 D T- 3 =J
From: Georgoulias, Bethany
Sent: Tuesday, September 16, 2014 8:58 AM
To: Parnell, David
Subject: RE: CREE Advance Tier Placement Removal Request
Hi Dave,
It seems appropriate to me to relieve them of extra sampling at this point and allow them to resume a semi-annual
schedule.
Bg
Bethany Georgoulias, Environmental Engineer
NCDENR / Division of Energy, Mineral, and .Land Resources
Storrnwater Permitting Program
1612 Mail Service Center, Raleigh, NC 27699-1612
512 N. Salisbury Street, Raleigh, NC 27604
919 / 807-6372 (phone); 919 / 807-6494 (fax)
Website: h :// ortal.n r.or web/ir/stormwater
E-mail correspondence to and from this address maybe subject to the North Carolina Public Records law and may be disclosed to third parties.
From: Parnell, David
Sent: Friday, September 12, 2014 3:43 PM
To: Georgoulias, Bethany
Subject: FW: CREE Advance Ter Placement Removal Request
From Cree:
I believe they have addressed all concerns. The presentation is included. Take a look at it and let me know if
you are good with relieving them from their advanced Tier requirements. They are addressing the pH in the
upcoming sample event.
Hope you have a great week -end.
Dave
From: Lloyd Smith f_mailto:Lloyd [e-mail]]
Sent: Friday, September 12, 2014 10:40 AM
To: Parnell, David
Subject: RE: CREE Advance Tier Placement Removal Request
Hi David;
Left a voice mail message concerning our sampling strategy — here is the amended letter with presentation for your
review. I will touch base with you later today.
From: Parnell, David rmailto:david.parnell(ancdenr.nov]
Sent: Wednesday, September 03, 2014 11:21 AM

To: Lloyd Smith
Cc: Georgoulias, Bethany; Bennett, Bradley; Holley, John
Subject: CREE Advance Tier Placement Removal Request
Good Morning Lloyd:
I hope you had some time off during the past week -end and it was a enjoyable.
After meeting with Bethany Georgoulias Friday, we agreed that we are getting closer to making a decision on
your request for release from your advance Tier placement. We, first would like to have an e-mailed version
of your presentation which was presented to us at the Raleigh Regional Office, on August 1.
Secondarily, we ask that you provide the -Central Office with amended Discharge Monitoring Reports (DMR)
that reflect the pH readings that were obtained by your staff on site. it is our hope that those "time of
sample" readings would be within required benchmarks and more accurately demonstrate your actual time of
sample pH, and not reflect those run at the lab after some time has passed. Again, we hope that should take
care of the pH issue — with respect to possible advanced Tiers.
When we have received the presentation from August 1, we may be able to make a decision.
Sincerely,
Dave Parnell
Environmental Senior Specialist
North Carolina Department of Environment & Natural Resources
Division of Energy, Minerals, and Land Resources
Raleigh Regional Office
3800 Barrett Drive
Raleigh, NC 27609
0: [phone]
F. [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law
and may be disclosed to third parties.
From: Lloyd Smith [mailto:Lloyd Smith(dcree.com]
Sent: Wednesday, August 27, 2014 1:36 PM
To: Parnell, David
Subject: RE: Monitoring Results
David;
Here is a brief outline of where we are currently with pH sampling prior to monitoring with spw3 at the Cree site;
Previously to my tenure, Cree had ensured that all containment water (water from hazardous waste tanks,
chilled process loops, etc.) met spw3 regulations for discharge — including pH. A permit for state lab

certification was obtained by Cree for this reason as it could be construed that pH from these tanks was
contributing to elevated or low pH readings as time of biannual spw3 sampling.
This was extended to all spw3 sampling (analysis at outfall) starting in 2013.
As a vendor (URS Corporation) was employed to perform the regular biannual testing, the pH was
transferred and analyzed at the receiving laboratory instead of a sample at the outfall during the event.
Cree has instructed our vendor performing spw3 testing to measure pH at the outfall site as well as in the
laboratory for all future rain events.
I hope this clears it up — thanks. LLS
From: Parnell, David[mailto:david,Darnellnncdenr.aov]
Sent: Monday, August 25, 2014 2:56 PM
To: Lloyd Smith
Subject: Monitoring Results
Lloyd,
Could you and Donna further discuss the pH monitoring that occurred and your reasoning as to the difference
in the results from the two labs? My understanding is that the Meritech results were all below the approved
benchmarks in May 2014, but when analyzed by Enco the results were within the approved benchmarks -for
the some monitoring period. Is this correct? Both Labs had different outcomes for the same sample period?
Thanks, hope to have an answer for you this week.
Dave Parnell
Environmental Senior Specialist
North Carolina Department of Environment & Natural Resources
Division of Energy, Minerals, and Land Resources
Raleigh Regional Office
3800 Barrett Drive
Raleigh, NC 27609
0: [phone]
F: [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law
and may be disclosed to third parties.
This e-mail message, including any attachments and previous email messages sent with it, contains CONFIDENTIAL and PROPRIETARY information of Cree,
Inc. or its subsidiaries and may be legally PRIVILEGED. You may not use, disclose, reproduce or distribute such information without Cree's authorization. If you
have received this message in error, please notify the sender immediately and permanently delete the original message, its attachments and any copies thereof.
This e-mail message, including any attachments and previous email messages sent with it, contains CONFIDENTIAL and PROPRIETARY information of Cree,
Inc. or its subsidiaries and may be legally PRIVILEGED. You may not use, disclose, reproduce or distribute such information without Cree's authorization. If you
have received this message in error, please notify the sender immediately and permanently delete the original message, its attachments and any copies thereof.

4600 Silicon Drive, Durham, NC 27703 USA
Main: [phone]
September 12, 2014
Attn: Mr. David Parnell
Environmental Senior Specialist
Water Quality, Surface Water Protection Section
3800 Barrett Drive
Raleigh, NC 277609
RE: Monitoring Request for Tier 2 status
Dear Mr. Parnell;
This letter is to follow up our meeting on Friday, August 1, 2014 at the DENR offices at 3800 Barrett
Drive and subsequent telephone and email conversations concerning Zn and Cu levels in stormwater
samples at the Cree Durham and RTP facilities.
As mentioned, Cree has limited pH sampling during rain events to single samples at each outfall sent
to an analytical laboratory. Since pH tends to drift with hold time, it was noted that pH data from the
May 2014 sampling event was below 6.0 for all 12 outfalls analyzed by Meritech, Inc., but normal for
Enco Laboratories for 10 out of the 12 outfalls. Although Cree considers this to be inconsistent with
sampling from June 2013 thru February 2014 where all pH values were within normal range, and is
probably due to this inherent discrepancy, Cree will obtain grab samples for pH during the next
available rain event prior to laboratory analysis.
After these results for grab and analytical samples are received, Cree will request guidance from the
agency on further sampling protocols. Cree will also continue to examine any additional sources to
these elevated Cu and Zn levels as we proceed in our investigation.
Please contact me at 919-407-6101 if you need additional information.
Sincerely,
Donna Lazzari
Environmental Manager
Cree, Inc.

4500 Silicon Drive, Durham, NC 27703 USA
Main: [phone]
August 14, 2014
Attn: Mr. David Parnell
Environmental Senior Specialist
Water Quality, Surface Water Protection Section
3800 Barrett Drive
Raleigh, NC 277609
RE: Monitoring Request and Meeting Response August 1, 2014
1
Dear Mr. Parnell;
It was a pleasure meeting with you and Bethany Georgoulias Friday to discuss options for Cree's
stormwater monitoring for Cu and Zn. This letter is to follow up our meeting on Friday, August 1,
2014 at the DENR offices at 3800 Barrett Drive.
The meeting presented reasons why Cree's Durham and RTP (Research Triangle Park) facilities
should return to semi-annual stormwater monitoring from Tier 2 testing. Elevated copper and zinc
levels, we believe, are not originating from the Durham or RTP sites. We have conducted extensive
reviews of the sites for external sources of copper and zinc, and Cree does not use copper or zinc
compounds in the manufacturing processes which could contribute to these levels. Further, Cree has
questioned the proximity of a copper smelting plant in the vicinity that could be contributing to these
elevated copper and zinc levels to be considered by DENR as a source due to atmospheric conditions.
It was also noted that pH data from the May 2014 sampling event was below 6.0 for all 12 outfalls
analyzed by Meritech, Inc., but normal for Enco Laboratories for 10 out of the 12 outfalls. Cree
considers this to be inconsistent with sampling from June 2013 thru February 2014 where all pH values
were within normal range. The discrepancy is probably due to analysis error than .to real values.
Based on these findings, Cree formally asks to resume semi-annual stormwater testing for the fall
reporting period.
Please contact me at 919-407-6101 if you need additional information.
Sincerely,
07
Donna Lazzari
Environmental Manager
Cree, Inc.

Parnell, David
From:
Georgoulias, Bethany
Sent:
Tuesday, August 26, 2014 10:57 AM
To:
Parnell, David
Subject:
RE: More from Cree
Friday sounds good. 11 AM is great. I'll set up a meeting for our calendars. Just come up to my office (942P on 9th)
Hmm, so now I wonder if Cree is reporting the lab's pHs instead of their own on their DMRs? A technicality you can
probably advise them on. We will work on the RRO/DEMLR's Response to their request re: monitoring as part of the
tiers.
Thanks,
Bg
Bethany Georgoulias, Environmental Engineer
NCDENR / Division of Energy, Mineral, and Land Resources
Stormwater Permitting Program
1612 Mail Service Center, Raleigh, NC 27699-1612
512 N. Salisbury Street, Raleigh, NC 27604
919 / 807-6372 (phone); 919 / 807-6494 (fax)
Website: httn://aortal.nedenr.ory-/web/lr/stormwater
E-mail correspondence to and from this address maybe subject to the North Carolina Public Records law and maybe disclosed to third parties.
From: Parnell, David
Sent: -Tuesday, August 26, 2014 10:51 AM
To: Georgoulias, Bethany
Subject: RE: More from Cree
Bethany,
I am leaving for a Durham Inspection now, so Friday will be better. I can come down to your office if that is OK. Would
11:OOAM be OK? I have a 12:15 appointment downtown for lunch. By the way — they do conduct their own pH samples
and have a record of them. Lloyd is going to send me those for review. The lab probably analyzes pH because it is in the
permit analytical requirements.
Hope to see you Friday!
Dave
From: Georgoulias, Bethany
Sent: Tuesday, August 26, 2014 10:44 AM
To: Parnell, David
Cc: Bennett, Bradley
Subject: RE: More from Cree
Dave,

If the labs are running these "in the lab," I'm concerned Cree is not getting samples measured in the first 15 minutes like
they are supposed to... but maybe their contracted lab is taking care of it properly. We should establish this — some
people just don't realize what the pH requirement is.
As far as a response to their request re: Tier Sampling: do you want to discuss today so we can start drafting a letter?
am available this morning,if you have time for a tali, or we can get together on Friday. I'll be in the office Friday until
2:30 PM. I could also make arrangements to stop by the RRO on Friday morning or afternoon, if that's easier for you.
Just let me know
Bg
Bethany Georgoulias, Environmental Engineer
NCDENR / Division of Energy, Mineral, and Land Resources
Storrnwater Permitting Program
1612 Mail Service Center, Raleigh, NC 27699-1612
512 N. Salisbury Street, Raleigh, NC 27604
919 / 807-6372 (phone); 9191807-6494 (fax)
Website: hD://portal.ncdenr.orp/web/Ir/stormwater
E-mail correspondence to and from this address may be subject to the North Carolina Public Records law and may be disclosed to third parties.
From: Parnell, David
Sent: Monday, August 25, 2014 4:46 PM
To: Georgoulias, Bethany
Cc: Bennett, Bradley
Subject: More from Cree
They are on it!
Dave
From: Lloyd Smith [mailto_L1oyd Smith(cbcree.com)
Sent: Monday, August 25, 2014 3:43 PM
To: Parnell, David
Subject: E:xplanatin
David;
Please see compiled results of Tier 2 sampling for Cree from Meritech and Enco.
Sample bottles for both labs were collected at the same time at each outfall. I can only presume each lab analyzed the
samples at different times and/or in different conditions at each lab. The Meritech pH results for May 2014 sampling
event are not very consistent with the past Meritech pH results from previous sampling events, whereas the May 2014
Enco pH results are more consistent with previous sampling events analyzed by Meritech. Therefore, hold time may be
the only variable that lends itself to the different results seen here.
Hope this helps. LLS
pH
Cree-
Durham
Meritech
Enco
Outfall
May-
May-
Benchmark

2014
2014
1
5.2
6.6
6.0-9.0
2
5.7
6.S
6.0-9.0
003A
5.7
6.7
6.0-9.0
004A
5.7
6.5
6.0-9.0
5
5.0
5.6
6.0-9.0
6
5.1
5.9
6.0-9.0
7
5.1
6.4
6.0-9.0
Cree-RTP
Meritech
Enco
May-
May-
Outfali
2014
2014
Benchmark
1
5.3
6.6
6.0-9.0
2
5.4
6.6
6.0-9.0
3
5.9
7
6.0-9.0
4
5.9
6.6
6.0-9.0
i
5.6
6.4
6.0-9.0
Lloyd A. Smith AS, BA, BS, CHMM
Cree, Inc.
Environmental Health and Safety Department
(919) 407-514S (office)
[phone] (fax)
CREE*.
This e-mail message, including any attachments and previous email messages sent with it, contains CONFIDENTIAL and PROPRIETARY information of Cree,
Inc. or its subsidiaries and may be legally PRIVILEGED. You may not use, disclose, reproduce or distribute such information without Cree's authorization. If you
have received this message in error, please notify the sender immediately and permanently delete the original message, its attachments and any copies thereof.

SO �
%� � �"`I� �%i��'-a� ."Y Pam✓ -
5��,
�' _n ,�,r� - zrtti � �' N�.�y -d
i7

Goore�oullas, Bethany
From:
Parnell, David
Sent:
Wednesday, August 27, 2014 2:26 PM
To:
Georgoulias, Bethany
Cc:
Bennett, Bradley
Subject:
FW: Monitoring Results
Bethany,
Here is today's update from Lloyd at Cree. We can discuss Friday at 11:00.
Dave
From: Lloyd Smith fmallto:Lloyd Smithcabcree.com]
Sent: Wednesday, August 27, 2014 1:36 PM
To: Parnell, David
Subject: RE: Monitoring Results
David;
Here is a brief outline of where we are currently with pH sampling prior to monitoring with spw3 at the Cree site;
- Previously to my tenure, Cree had ensured that all containment water (water from hazardous waste tanks,
chilled process loops, etc.) met spw3 regulations for discharge — including pH. A permit for state lab
certification was obtained by Cree for this reason as it could be construed that pH from these tanks was
contributing to elevated or low pH readings as time of biannual spw3 sampling.
- This was extended to all spw3 sampling (analysis at outfall) starting in 2013.
- As a vendor (URS Corporation) was employed to perform the regular biannual testing, the pH was
transferred and analyzed at the receiving laboratory instead of a sample at the outfall during the event.
- Cree has instructed our vendor performing spw3 testing to measure pH at the outfall site as well as in the
laboratory for all future rain events.
I hope this clears it up —thanks. LLS
From: Parnell, David rmailto:david. [e-mail]]
Sent: Monday, August 25, 2014 2:56 PM
To: Lloyd Smith
Subject: Monitoring Results
Lloyd,
Could you and Donna further discuss the pH monitoring that occurred and your reasoning as to the difference
in the results from the two labs? My understanding is that the Meritech results were all below the approved
benchmarks in May 2014, but when analyzed by Enco the results were within the approved benchmarks -for
the some monitoring period. Is this correct? Both Labs had different outcomes for the same sample period?
Thanks, hope to have an answer for you this week.
Dave Parnell

Georgoulias, Bethany
From:
Parnell, David
Sent:
Monday, August 25, 2014 4:46 PM
To:
Georgoulias, Bethany
Cc:
Bennett, Bradley
Subject:
More from Cree
They are on itl
Dave
From: Lloyd Smith [mailto:Lloyd SmithO)cree.com]
Sent: Monday, August 25, 2014 3:43 PM
To: Parnell, David
Subject: Explanatin
David;
Please see compiled results of Tier 2 sampling for Cree from Meritech and Enco.
Sample bottles for both labs were collected at the same time at each outfall. I can only presume each lab analyzed the
samples at different times and/or in different conditions at each lab. The Meritech pH results for May 2014 sampling
event are not very consistent with the past Meritech pH results from previous sampling events, whereas the May 2014
Enco pH results are more consistent with previous sampling events analyzed by Meritech. Therefore, hold time may be
the only variable that lends itself to the different results seen here.
Hope this helps. LLS
pH
Cree-
Durham
Meritech
Enco
May-
May-
Outfall
2014
-2014
Benchmark
1
5.2
6.6
6.0-9.0
2
5.7
6.5
6.0-9.0
003A
5.7
6.7
6.0-9.0
004A '
5.7
6.5
6.0-9.0
5
5.0
5.6
6.0-9.0
6
5.1
5.9
6.0-9.0
7
5.1
6.4
6.0-9.0

Cree-RTP
Meritech
Enco
May-
May-
Outfall
2014
2014
Benchmark
1
5.3
6.6
6.0-9.0
2
5.4
6.6
6.0-9.0
3
5.9
7
6.0-9.0
4
5.9
6.6
6.0-9.0
5
5.6
6.4
6.0-9.0
Lloyd A. Smith AS, BA, BS, CHMM
Cree, Inc.
Environmental Health and Safety Department
[phone] (office)
[phone] (fax)
CREED
This e-mail message, including any attachments and previous email messages sent with it, contains CONFIDENTIAL and PROPRIETARY information of Cree,
lnc. ar Its subsidiaries and may be legally PRIVILEGED. You may not use, disclose. reproduce or distribute such information without Cree's authorization. if you
have received this message in error. please notify the sender immediately and permanently delete the original message, its attachments and any copies thereot.

u,.A_. �.:.�•�.+sw. r.:w..+�4 .a;:+K=l- w S�+i-. Iei:�r L'Y'.'%. ::.�4. �.A •1--,+�
0 low KM Nam 10WO
low ® IL ®\,J
August 14, 2014
Attn: Mr. David Parnell
Environmental Senior Specialist
Water Quality, Surface Water Protection Section
3800 Barrett Drive
Raleigh, NC 277609
4600 Silicon Drive, Durham, NC 27703 USA
Mein: [phone]
RE: Monitoring Request and Meeting Response August 1, 2014
Dear Mr. Parnell;
It was a pleasure meeting with you and Bethany Georgoulias Friday to discuss options for Cree's
stormwater monitoring for Cu and Zn. This letter is to follow up our meeting on Friday, August 1,
2014 at the DENR offices at 3800 Barrett Drive.
The meeting presented reasons why Cree's Durham and RTP (Research Triangle Park) facilities
should return to semi-annual stormwater monitoring; from Tier 2 testing. Elevated copper and zinc
levels, we believe, are not Originating from the Durham or RTP sites. We have conducted extensive
reviews of the sites for external sources of copper and zinc, and Cree does not use copper or zinc
compounds in the manufacturing processes which could contribute to these levels. Further, Cree has
questioned the proximity of a copper smelting plant in the vicinity that could be contributing to these
elevated copper and zinc levels to be considered by DENRR as a source due to atmospheric conditions.
It was also noted that pH data from the May 2014 sampling event was below 6.0 for all 12 outfalls
analyzed by Meritech, Inc., but normal for Enco Laboratories for 10 out of the 12 outfalls. Cree
considers this to be inconsistent with sampling from June 2013 thru .Febntary 2014 where all pli values
were within normal range. 'rhe discrepancy is probably due to analysis error than to real values.
Based on these findings, Cree formally asks to resume semi-annual stormwater testing for the fall
reporting period.
Please contact me at 919-407-6101 if you need additional information.
Sincerely,
;;�µ
Donna Lazzari
Environmental Manager
Cree, Inc.

f 47
1, dd -1
, L
DENR Stormwater Overview
August 1, 2014

History
Cree manufactures LED technology for the semi -conductor
industry.
Encompasses all aspects of lighting industry:
automobile
industrial and commercial lighting
Manufacturing plants in Durham (RTP, Alston, Morrisville) ,
Racine, Wisconsin and California.
CREE®►
Cree's History
194117-Cra 1993-IPO. Company 2DOB-2011: Cr- brat.
founded es a spin• tndn on the ION -Nnds 'Lighting tumam/w�tt barber 2012: Cree
offol NCSU NASDAOundathe C1.u"LEDComp9nah muklpNtlmesfora enneuncnremtd
arch program symbol CRTE bought to market single LED Component, mvenueol$1.1711
Least wo d IL
n6 pmensJw+tt.
I
19g9 -Crx 2011: C . named to
erciallen Fortune Magalntes Tap
world's Art blue LED 100 F1Nest Gtosving
Companla Ig3d1
20014011: Mukiple 2007-Fist FORMNY 2013: Cree
ecqulakionsincluding com hiIlyvleble LED qunchnhsRm
IntHot, COTCO, LLF, d—light introduced LED quit,
and Ruud Lighting {1A6) EST
w
CREEA
2

Cree-RTP and Cree-Durham Facilities
Cree-RTP A.
• Stormwater runoff drains into
Unnamed Tributaries to
Northeast Creek, which in turn
flows into Jordan Lake located
south of Cree-RTP.
• Jordan Lake is located within the
Cape Fear River Basin and is
classified as a Class C Nutrient
Sensitive Water (NSW) surface
water by NCDENR.
Cree-Durham It
• Stormwater runoff drains into
Stirrup Iron Creek, which flows
southward into Crabtree Lake/
Crabtree Creek.
• Stirrup Iron Creek is located
within the Neuse River Basin and
Is classified as Class C NSW
surface water by NCDENR.
CREED
SPPP Site Plan - CREE-Durham
Cree-Durham has
seven industrial
to 007)
outfalls (001
if
a
� i
,'!'
Storm System
Sanitary Sewer
System
CREED
3

SPPP Site Plan - CREE-RTP
Cree-RTP
has five
industrial
` outfalls
(001 to 005)
ff 4
Storm
- System
CREEW
Observations
• General permit issued 10/25/2012 indicates
benchmark parameters for Cu and Zn. -
• First exceedances noted June sampling 2013
• Began Tier 1 and 2 sampling regimen, progressing
to Tier 3 at last sampling event in June 2014.
• Began comprehensive site review to determine
sources of exceedances for Cu and Zn.
• Currently seeking guidance to deal with continuing
elevated levels of metals.
CREED
El

Durham Results for Tier Testing
Stormwater - Copper
0.14
0.12
0.I — �3un•2013
0.06 a Nov-2013
10,06 �Peb-2014
0 04 r May2014
0.02
Benchmark
—
0
1 2 003A 004A 5 6 7 Rainwater Roof grab
Stormwater - Zinc
2.5
2
w Jvn-2013
IS r Nov-2013
1 Feb-2014
r May-2014
0.5 —Bendwork
0 — —
1 2 003A 004A 5 6 7 RalnwaW Rmf grab
Crt
RTP Results for Tier Testing
Stormwater - Copper
0.12
0.1
O.OB
�3un-2013
�NOv2013
0.06 ri Feb•2014
OA4 ri May-2014
0.02 --Benchmark
0
l 2 3 4 5
Stormwater - Zinc
0.6
0.s
iJun-2013
0,4 —
wrNw-2013
0.3 -- --_---------_ Feb-2014
0.2 May-2014
01 - _, ----Benchmark
0 --i M_ _
7 2 3 4 5
CREEOe
y

stormwater BMP Efforts
1. stormwater regulatory guidelines and SOP.
2. On site annual training.
3. Strict adherence to BMP's governing site.
4. Institution of MOC's to monitor production processes that
might affect sw policies.
5. Site maintenance and upkeep of outfalls, retention ponds;
annual inspections by regulatory authorities.
6. ERT (Emergency Response Team) to respond to all
emergencies at any time — on call EHS professional at all
times.
Labeling and Containment
CREED
Q�j `.
0

:r
Potential sources of Copper and Zinc at Cree
• 1. Neither Cu or Zn is used in manufacturing
processes at the Cree RTP or Durham sites.
• 2. No lay down yards with copper or zinc that
could contribute to runoff.
• 3. Outside BMPs for stormwater are strictly
controlled (outside vendors, contractors, etc.) to
eliminate contaminated stormwater runoff.
CREEO.
7

Other Potential Sources of Cu/Zn
"SCM Metal Products' manufacturing plant in Research
Triangle Park, North Carolina, USA, is the global leader in
the production and distribution of non-ferrous metal
powders and copper -based brazing pastes."
CREEO.

Objectives
1. Path forward to address Tier II status/monthly
testing for Cu and Zn; suggest return to semi-
annual testing until new test standards set.
2. Elimination of selected sufficiently similar
outfalls from Cree Durham/RTP sites.
Our goal is compliance
Thank yoga!
CREED
E

ATA
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory John E. Skvarla, III
Governor Secretary
April 11, 2014
Mr. Lloyd Smith AS, BA, BS CHMN
Environmental Health and Safety Department
Cree
4600 Silicon Drive
Durham, NC 27703
Subject. Cree RTP -NPDES Stormwater Permit NCG030541
Cree Durham-NPDES Stormwater Permit NCG030433
Durham County
Dear Mr Smith:
On April 8, 2014, Dave Parnell, of the Raleigh Regional Office of the North Carolina Division of
Energy, Mineral and Land Resources (DEMLR), conducted two compliance evaluation
inspections (CEI) at the above referenced facilities. The RTP site lies in the watershed of an
unnamed tributary CUT) to Northeast Creels, Class WS-V, NSW waters, in the Cape Fear River
Basin. The Durham (Silicon Drive) site lies in the watershed of an unnamed tributary to
Stirrup Iron Creek, Class NSW waters, in the Neuse River Basin. Your assistance, and that of
Donna Lazzari of Cree, and Dan O'Connor, your consultant from URS, was appreciated.
The following observations were noted during the NCGO030541 DEMLR inspection:
This facility is a semi -conductor production facility, which produces lighting products, among
other things. The RTP site inspection consisted of a walkthrough of the site and visits to the
Stormwater Discharge Outfalls (SDO) and secondary containment sites. There are five SDO
currently being monitored at this site Following a site visit: to the Silicon Drive facility, a
Division of Energy, Mineral, and Land Resources
Energy Section • Geological Survey Section - Land Quality Section
1612 Mail Service Center, Raleigh, North Carolina 27699-1612.919-707-92001 FAX: [phone]
512 North Salisbury Street, Raleigh, North Carolina 27604 - Internet: http:i/portal,ncdenr.oMlwebllr!
An Equal Opportunity 1 Affirmative Action Employer — 50% Recycled 110% Post Consumer Paper

thorough review of the Stormwater Pollution Prevention Plan and analytical and qualitative
monitoring data, were conducted. There were no blatant omissions or errors noted during
the review. The facility is following the Tier Program required by the NPDES permit and
currently is on Tier 3. A review of the monitoring data shows exceedences of zinc and copper.
Dave Parnell and the Stormwater Permitting Program staff, are available to advise you of your
options going forward, at the time that the Tier 3 requirements are completed The
Stormwater Pollution Prevention Plan is being followed and the stormwater program for this
facility is being carried out..
The following observations were noted during the NCGO030433 DEMLR inspection.
This facility is a semi -conductor production facility, which produces lighting products, among
other things. The Silicon Drive site inspection consisted of a walkthrough of the site and visits
to the Stormwater Discharge Outfalls (SDO) and secondary containment sites. There are
seven SDO currently being monitored at this site, although some are approved for
Representative Outfall Status. After the site inspection, a thorough review of the Stormwater
Pollution Prevention Plan and analytical and qualitative monitoring data, were conducted.
There were no blatant omissions or errors noted during the review. The facility is following
the Tier Program required by the NPDES permit and currently is on Tier 3. A review of the
monitoring data shows exceedences of zinc and copper. Dave Parnell and the Stormwater
Permitting Program staff, are available to advise you of your options going forward, at the
time that the Tier 3 requirements are completed The Stormwater Pollution Prevention Plan
is being followed and the stormwater program for this facility is being carried out..
Thank you for your diligence in keeping your facilities in compliance, with respect to your
NPDES permits. Should you have questions regarding these matters, please contact Dave
Parnell at [phone].
Sincerely,
J ' hn V. Holley, Jr., PE, CPESC
R g' nal Engineer
Raleigh Regional Office
cc: Stormwater Permitting Program Files - with attachment
DEMLR Raleigh Regional Office Files - with attachment

W
-k.
Compliance Inspection Report
Permit: NCG030541 Effective: 11/01/12 Expiration: 10/31/17 - Owner: Cree, Inc
SOC: Effective: Expiration: Facility: Cree RTP
County: Durham 3026 Cornwallis Rd
Region: Raleigh
Research Triangle Park NC 27709
Contact Person: Lloyd Smith Title: Phone: [phone]
Dfractions to Facility:
System Classifications:
Primary ORC:
Secondary ORC(s):
On -Site Represantative(s):
Related Permits:
Inspection Data: 04/08/2014
Primary Inspector: David R Pamell
Secondary Inspectors):
Certiflcatlon:
Entry Time: 10:30 AM Exit Time: 02:30 PM
Phone:
Phone: [phone]
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Metal Fabrication Stormwater Discharge COC
Facility Status: ■ Compliant ❑ Not Compliant
Question Areas:
0 Storm Water
(See attachment summary)
Page: i

..L.
Permit: NCG030541 owner • Facility: Cree, Inc
Inspection Date; 04/08/2014 Inspection Type: Compliance Evaluation
Stormwater Pollution Prevention Plan
Does the site have a Stormwater Pollution Prevention Plan?
# Does the Plan include a General Location (LISGS) 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 ail 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?
Reason for Visit: Routine
Comment: This facility is very good about carrying out all aspects of their Stormwater
Program. Due to staff changes there has been a delay in providing the most current
plan update and employee training. Prior to this transition time, regular updating and
training have been conducted in a timely manner.
Qualitative Monitoring
Has the facility conducted its Qualitative Monitoring semi-annually?
Comment:
Analytical Monitoring
has the facility conducted its Analytical monitoring?
# Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas?
Comment: This Facility as is the Silicon Drive facility has landed on Tier 3 required by
their NPDES permit. They have consistantly had exceedences of copper and zinc.
They are following the intent of the permit with respect to the Tier program and will be
back in touch with the SPP and RRO concerning their options.
Permit and Outfalls
# Is a copy of the Permit and the Certificate of Coverage available at the site?
Yee No NA NE
■❑❑❑
Yoe No NA NE
■ ❑ ❑ ❑
❑ ■ ❑ ❑
Yes No NA NE
■ ❑ 130
Page: 3

,0 .
CJ
Permit: NCG030841 Owner - Factlity: Cree, Inc
Inspection Date: 04/08/2014 Inspection Type: Compliance Evaluation Reason for Vislt: Routine
# 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: ROS in place and documented.
Page: 4

Permit: NCG030541 Owner -Facility: Cree, Inc
Inspection Date: 04/0812014 Inspection Type: Compliance Evaluation
Reason for Visit:
Routine
Stormwater Pollution Prevention Plan
Yes
No
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?
■
❑
❑ ❑
# 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: This facility is very good about carrying out all aspects of their Stormwater
Program. Due to staff changes there has been a delay in providing the most current
plan update and employee training. Prior to this transition time, regular updating and
training have been conducted in a timely manner.
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: This Facility as is the Silicon Drive facility has landed on Tier 3 required by
their NPDES permit. They have consistantly had exceedences of copper and zinc.
They are following the intent of the permit with respect to the Tier program and will be
back in touch with the SPP and RRO concerning their options.
Permit and Outfalls Yes No NA NE
# Is a copy of the Permit and the Certificate of Coverage available at the site? 0,000
Page: 3

Permit: NCG030541 Owner -Facility. Cree, Inc
Inspection Date: 04/08/2014 Inspection Type: Compliance Evaluation Reason for Visit: Routine
# 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: ROS in place and documented.
Page: 4

Compliance Inspection Report
Permit: NCG030433 Effective: 11/01/12 Expiratio : 10/31/17 Owner: Cree, Inc
SOC: Effective: Expiration: Facility: Cree Incorporated
County: Durham 4600 Silcone Dr
Region: Raleigh
Durham NC 27703
Contact Person: Lloyd Smith Title: Phone: [phone]
Directions to Facility:
System Classifications:
Primary ORC:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Inspection Date: 04/08/2014
Primary Inspector: David R Parnell
Secondary Inspector(s):
Certification
Entry Time: 10:30 AM Exit Time: 02:30 PM
Phone:
Phone: [phone]
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Metal Fabrication Stormwater Discharge COC
Facility Status: ■ Compliant ❑ Not Compliant
Question Areas:
0 Storm Water
(See attachment summary)
Page: 1

Permit: NCG030433 Owner - Facility: Cree, Inc
Inspection Date: 04108/2014 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
Page: 2

Permit: NCG030433 Owner -Facility: Cree, Inc
Inspection Date: 04/08/2014 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Stormwater Pollution Prevention Plan
Yes
No 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?
■
❑ ❑
❑
# 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: This facility is very good about carrying out all aspects of their Stormwater
Program. Due to staff changes there is a delay in providing the most current plan
update and employee training. Prior to this transition time regular updating and training
have been conducted in a timely manner.
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?
00013
Comment: Facility is currently on Tier 3 of their analytical component of their permit.
They have exceedences of zinc and copper. They are following the requirements of the
Tier 3 language.
Permit and Outfalls Yes 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? ■ ❑ ❑ ❑
Page: 3

Permit: NCG030433 Owner - Facility: Cree, Inc
Inspection Date: 04/0812014 Inspection Type: Compliance Evaluation Reason for Visit: Routine
# 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: 4

NCDETIR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue
Governor
Terry Blalock
Cree, Inc
4600 Silicon Dr
Durham, NC 27703
Dear Permittee:
Charles Wakild, P. E.
Director
December 4, 2012
Dee Freeman
Secretary
Subject: NPDES Stormwater Permit Coverage Renewal
Cree Incorporated
COC Number NCG030433
Durham County
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 E). 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://portal.ncdenr.ors/web/wq/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
http://portal.ncdenr.org_/web/wo/ws/su/ngdessw (click on 'General Permits' tab) to review that information
for your specific General Permit carefully.
1617 Masi Service Center, Ralegh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Ralegh, North Carolina 27604
Ph�)m 9 19-807-6300 1 FAX f 19-807-6492
Intr--.rnet: www.nmaller-quality,rig
One
North Carolina
k rgi:al Opr dunity\Affrmat+ve,,cli,n Employer

Terry Blalock
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 8, C: Failure to perform analytical stormwater monitoring may result in the Division requiring
that the permittee begin a monthly sampling scheme.
• Sections 8, C: A lower TSS benchmark of 50 mg/I for HQW, 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 B, 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,
I
for Charles Wakiid, P.E.
cc: DWQ Central Files
Stormwater Permitting Unit Files
Raleigh Regional Office

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG030000
CERTIFICATE OF COVERAGE No. NCG030433
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,
Cree, Inc
is hereby authorized to discharge stormwater from a facility located at:
Cree Incorporated
4600 Silicon Dr
Durham
Durham County
to receiving waters designated as Stirrup Iron Creek, a class C;NSW waterbody in the Neuse
River Basin in accordance with the effluent limitations, monitoring requirements, and other
conditions set forth in Parts I,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

NCDEERR a
North Carolina Department of Environment and Natural R sources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
November 4, 2010
Mr. Quinton Hancock,CHMM
EH&S Engineer
Cree, Inc.
4600 Silicon Drive
Durham, NC 27703
SUBJECT: Compliance Evaluation Inspection
Cree, Inc., 3025 Cornwallis Road
Permit No: NCG030541
Durham County
Dear Mr. Hancock:
On October 27, 2010, Mack Wiggins and Martin Richmond of the North Carolina Division of Water
Quality, Surface Water Protection Section, Raleigh Regional Office, conducted a compliance
evaluation inspection of Cree, Inc. at 3026 Cornwallis Road, Durham, NC. Your assistance and
cooperation was very helpful and appreciated during the inspection process.
1. The following observations were made during the inspection:
This facility manufactures led lighting, and semi conductors for wireless and power
applications.
2. This facility has five stormwater outfalls. None are representative.
3. All monitoring was performed at all five outfalls as required by Stormwater General Permit
NCG030000. Analytical and qualitative results are recorded on the forms provided by
DWQ. Stormwater outfalls are assessable and well maintained.
4. Samples are collected by Mr. Hancock. Analytical work is performed by Meritech, Inc
Environmental Laboratory. All meters are calibrated at every use.
5. The facility provide all necessary secondary containment as required.
6. All drains within the plant are connected to sanitary sewer. Loading docks, roof drains and
yard surface drains are the only sources of stormwater.
7. The facilities Stormwater Pollution Prevention Plari contain all items as required by Part II
section A of General Permit NCG030000.
NoehCarolina
tnally
North Carolina Derision of Water Quality Raleigh Regional Office Surface Water Protection Phone [phone] Customer Service
Internet: www.ncwalerquality.org 1628 Mail Service Center Raleigh, NC 27699-1528 FAX [phone]
An Equal Opportunity/Affirmative Action Employer— 50% Recycled110%, Post Consumer Paper

Mr. Quinton I lancock, CIIMM
Cree, Inc.
November 4 tb 10
This facility-was�fournd°to•beAtreompliance with general permit NCG030000 at the time of the inspection.
Thanks for your cooperation. If you or your staff have any questions, please call me at (919)791-
4200.
Sincerely,
Mack Wiggins
Environmental Specialist
Raleigh Regional Office, SWP
cc: Central Files
:RRO File
Mr. Randall G. Arnott, CPEA, Cree, Inc.

c
Permit: NCG030541
SOC:
County: Durham
Region: Raleigh
Compliance Inspection Report
Effective: 11/01/07 Expiration: 10/31/12
Effective: Expiration:
Contact Person: Quinten Hancock
Directions to Facility:
System Classifications:
Primary ORC:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Title:
Inspection Date: 1012712010 Entry Time: 03:30 PM
Primary Inspector: Mack K Wiggins /%,� /L
Secondary Inspector(s): �i'!+
Certification:
Owner: Cree, Inc
Facility: Cree RTP
3026 Cornwallis Rd
Research Triangle Park NC 27709
Phone: [phone]
Exit Time: 06:00 PM
Phone:
Phone: [phone]
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Metal Fabrication 5tormwater Discharge COC
Facility Status: ■ Compliant ❑ Not Compliant
Question Areas:
0 Storm Water
(See attachment summary)
Page: 1

Permit: NCG030541 Owner - Facility: Cree, Inc
Inspection Date, 10127/2010 Inspection Type: Compliance Evaluatlon Reason for Visit: Routine
Inspection Summary:
Page: 2

Permit: NCG030S41 Owner - Facility: Cree, Inc
Inspectlon Coate; 10/2712010 Inspectlon Type: Compliance Evaluation Reason for Vlslt: Routine
Stormwater Pollution Prevention Plan Yes No 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"?
■
Cl
❑ ❑
# 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?
■
❑
❑ ❑
# Goes the Plan include a BMP summary?
❑
■
Cl ❑
# 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: The plan didn't have a USGS map at the time of review. a USGS map
showing the general location of the site was to be included in the plan the day of the
inspection. The facility has good functioning BMPs in place. Their stormwater plan
need to incorporate Part II Section A 2 (c) BMP Summary in their plan.
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: The facility does not perfromed any vehical maintenance.
Permit and Outfalls Yes No NA NE
# Is a copy of the Permit and the Certificate of Coverage available at the site? ■ ❑ ❑ ❑
# Were all outfatis 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? ■ ❑ ❑ ❑
Page: 3

Permlt: NCG030541 Owner • Facility: Cree, Inc
Inspection Date: 10/27/2010 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Comment:
Page: 4

w ArFRQG
� rt
Mr. Quinton Hancock
Cree, Inc.
4600 Silicon Drive
Durham, NC 27703
Dear Mr. Hancock:
Michacl F, Easley, Governor
William G. Ross Jr., Secretary
—North Carolina Department of Environment and Natural Resources--
Coleen H. Sullins Director
Division of Water Quality
November 19, 2008
Subject: Stormwater Permit NCG030000
Cree, Inc., Durham County
COC NCG030433
Change in Representative OutfalI Status
The Division of Water Quality received your request for changes in your representative outfali status
(granted July 26, 2007) at your Durham facility on November 6, 2008. Based on our understanding of
your representations of current site drainage conditions as presented in your letter, attachments, and site
visit November 18, 2008, we are granting the following revision to your monitoring obligations under
NCG030433. Please maintain a copy of this letter on file at the facility.
1. You reported that outfall SDO-3 only discharges during large rain events, while SDO-3A
discharges during smaller events. As a result of your report, Cree may change the required
analytical sampling on SDO-3A as representative for SDO-3 and SDO-313, and may
discontinue analytical monitoring of SDO-3 and SDO-313. Please.note that SDO-3 and SDO-
313 must still be included in the twice -yearly qualitative monitoring event.
Please contact me if you have any questions or comments, [phone] or
ro bert.patterson(a)n cmai 1. net. Please note for the future, that all representative autfall items are now
handled by the appropriate Regional Office (Raleigh RO for this facility).
Sincerely,
Robert D. Patterson, PE
Stormwater Permitting Unit
cc: Raleigh Regional Office, Mack Wiggins
Central riles
SPU Files
NotthCamlina
,11 i7tirmtlry
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: www.nctivrter ualitV,Q_r_, Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax [phone]
An Equal Opportun4)Affrmative Aden Employer— 50% Recydedf10% Post Consumer Paper

4600 Silicon Drive • Durham, NC 27703 • (9 i 9) 3 i 3-5300
November 4, 2008 —�
CERTIFIED MAIL -RETURN RECEIPT REQUESTED
o
N.C. Division of Water Quality
4° p 13P
Water Quality Section Q
Stormwater and General Permits Unit
1617 Mail Service Center
Raleigh, NC 27699
f r
RE: Change in Representative Outfall Status
Cree, Inc., Durham, Durham County, North Carolina
Permit Number NCG030000, COC NCG030433
To Whom It May Concern:
Cree, Inc. located at 4600 Silicon Drive, Durham, Durham County, North Carolina,
previously requested and received representative outfall status for outfall SDO-3 (DWQ,
Robert Patterson, July 26, 2007) relative to outfalls SDO-3, SDO-3A, and SDO-3B.
The purpose of this letter is to notify you that we are changing the representative outfall
status for this group of outfalls from SDO-3 to SDO-3A for quantitative sampling events
(See TABLE 1 below). We are making this change because flow occurs at SDO 3 during
significant downpours only. However, SDO-3A typically exhibits stormwatcr flows
during lesser rain fall events.
TABLE 1
REPRESENTATIVE
OUTFALL(S) TO BE
OUTFALL TO BE
OUTFALL
REPRESENTED
SAMPLED DURING
UANTITATIVE EVENT
SDO-3A
SDO-3, SDO-3B
SDO-3A
We will continue to conduct qualitative sampling at Outfall SDO 3 provided stormwater
flows occur at this outfall.

Should you have any questions or need additional information, please feel free to contact
me at 919-313-5845.
Sincerely,
ew
Quinton Hancock
EMS Engineer
MQH

Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins Director
Division of Water Quality
July 26, 2007
Mr. Terry Blalock
Cree, Inc.
4600 Silicon Drive
Durham, NC 27703
Subject: Stormwater Permit NCG030000
Cree, Inc,, Durham County
COC NCG030433
Request for Representative Outfall Status
Dear Mr. Blalock:
The Division of Water Quality received your request for changes in your monitoring obligations at your
Durham facility on January 9, 2007. Based on our understanding of your representations of current site
drainage conditions as presented in your letter and attachments, we are granting the following revision to
your monitoring obligations under NCG030433. Please maintain a copy of this letter on file at the
facility.
You reported that outfall SDO-3 is representative of outfalls SDO-3A and SDO-313. As a
result of your report that SDO-3 is representative of SDO-3A and SDO-3B, Cree may conduct
the required analytical sampling on SDO-3 as representative for SDO-3A and SDO-3B, and
may discontinue analytical monitoring of SDO-3A and SDO-3B. Please note that SDO-3A
and SDO-3B must still be included in the twice -yearly qualitative monitoring event.
2. You reported that outfall SDO-4 is representative of outfall SDO-4A. As a result of your
report that SDO-4 is representative of SDO-4A, Cree may conduct the required analytical
sampling on SDO-4 as representative for SDO-4A, and may discontinue analytical monitoring
of SDO-4A. Please note that SDO-4A must still be included in the twice -yearly qualitative
monitoring event.
Please contact me if you have any questions or comments, [phone] ext. 360.
Sincerely,
Robert D. Patterson, PE
Environmental Engineer I
cc: Raleigh Regional Office
Central Files
Stormwater Permitting Unit Files
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone]
Internet: w�►�jLMptcrqunlity.ors Location: 512 N. Salisbury St, Raleigh, NC 27644 Fax [phone]
NZ" `hCaroIina
;aturally
Customer Service
1-877.623-6748
An Equal Opportunity/Affirmative Action Employer— 50% Recycledl10% Post Consumer Paper

Re: NCG030433 - Cree, Inc., Durham County - Request for Represent...
Subject: Re: NCG030433 - Cree, Inc., Durham County - Request for Representative Outfall Status
From: Mack Wiggins <mack.wiggins@ncmaiLnet>
Date: Wed, 25 Jul 2007 09:59:21 -0500
To: Robert Patterson <[e-mail]>
Robert Patterson wrote:
Mack,
I'm new here in the central office.
We received a request by the subject company for representative outfall status
(see attachment for request and site plan). They have requested the reduction
from 8 outfalis, down to 5. They propose that. SDO-3 is representative of the
discharges from SDO-3A and 3B. They also propose that SDO-4 is representative of
the discharges from SDO-4A. After review of the information provided and speaking
with the Cree contact (Quinton Hancock) listed on their letter, I agree with what
they propose. Do you have any concerns or comments with this request? If you are
in agreement, I plan to sent them a letter granting their request.
Thanks.
RRo recomend that you grant their .request. Thanks.Mack
of 1 7/26/2007 6:46 AM

■
4600 Silicon Drive • Durham, NC 27703 • [phone]
January 4, 2007
CONFIDENTIAL �]
CERTIFIED MAIL -RETURN RECEIPT REQUESTED
N.C. Division of Water Quality �° a
Water Quality Section r
Stormwater and General Permits Unit
1617 Mail Service Center —
Raleigh, NC 27699
RE: Petition for Representative Outfall Status
Cree, Inc., Durham, Durham County, North Carolina
Permit Number NCG030000, COC NCG030433
To Whom It May Concern:
Cree, Inc. located at 4600 Silicon Drive, Durham, Durham County, North Carolina is
hereby requesting that representative outfall status be granted for the following
stormwater outfalls for purposes of stormwater sampling:
OUTFALL FOR WHICH
OUTFALL(S) TO BE
OUTFALL TO BE
REPRESENTATIVE
REPRESENTED BY
SAMPLED
STATUS IS REQUESTED
REPRESENTATIVE
OUTFALL
SDO-3
SDO-3A, SDO-3B
SDO-3
SDO-4
SDO-4A
SDO-4
A site map delineating drainage areas, industrial activities, and other potential stormwater
issues is attached.
As you will see in the site map, outfalls SDO-3, SDO-3A, and SDO-3B, located on the
northernwestern side of the facility, drain a common area where industrial activity is
limited to vehicular traffic and compressed gas storage. Therefore, Cree is requesting
that outfall SDO-3 be designated as representative for this area for purposes of
stormwater sampling.
Outfalls SDO-4 and SDO-4A, located on the southwestern side of the facility, also drain
a common area. SDO-4A is actually a branch off of a primary stormwater discharge pipe
that terminates as outfall SDO-4. Therefore, Cree is also requesting that Outfall SDO-4
be designated as representative for this area for purposes of stormwater sampling.

We are making preparations to conduct our required annual analytical sampling event, so
a timely review and response would be greatly appreciated.
This letter and attached drawing contain information that is considered confidential.
Accordingly, Cree is requesting that this submittal be treated as confidential.
Should you have any questions or need additional information, please feel free to contact
Quinton Hancock, Cree EH&S Engineer, at 919-313-5845.
Sincerely,
Tory B alock
Site Director
MQH
Enclosures ( 1)
Cc: Randy Arnott, Cree EH&S Manager

MIIV/E

Cree Stormwater Drawing
Subject: Cree Storrnwater Drawing
From: "Quinton Hancock" <[e-mail]>
Date: Thu, 12 Jul 2007 10:25:22 -0400
To: <[e-mail]>
Mr. Patterson,
Attached please find the stormwater drawing we discussed this morning. I think you will see that, based on
the flow patterns, the stormwater in zone 3 flows in the direction of outfall #3 and, although some of the
water may flow out to #3A or #3I3, #3 picks up the flow from the whole area.
If you cannot read the detail on this drawing, let me know and I will drop a hard copy in the mail.
Thanks
«DRAINEX 2006.dwg.PDF»
Quinton, Hancock, CHMM
EH&S Engineer
Cree, Inc
(W) 919-313-5845
(C) 919-201-4876
Content -Description: DRAINEX 2006.dwg.PDF
DRAINEX 2006.dwg.PDF Content -Type: application/octet-stream
Content -Encoding: base64
1 of 1 7/12/2007 11:16 AM

w A r�gpt:
co r
o �
ALICIA MITCHELL
CREEINCORPORATED
4600 SILICON DRIVE
DURHAM, NC 27703
Dear Permittee:
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
August 23, 2002
Subject: NPDES Stormwater Permit Renewal
CREEINCORPORATED
COC Number NCG030433
Durham 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
Raleigh Regional Office
®��
NCDENR
N. C. Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 [phone] Customer Service
1- 800-623-7748

Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
W A TF9Q
�Q G
r
O Nii� 11�'
ALICIA F MITCHELL
CREE RESEARCH INCORPORATED
4600 SILICON DR
DURHAM, NC 27703
Dear Permittec:
Gregory J. Thorpe, Ph.D.
Acting Director
Division of Water Quality
December 27, 2001
Subject: NPDES Stormwater Permit Renewal
CREE RESEARCH INCORPORATED
COC Number NCG030433
Durham County
Your facility is currently covered for stormwater discharge under General Permit NCG030000. This permit expires
on August 31, 2002. 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. l 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 I I categories of "storm water discharges associated with industrial activity," (except
construction activities). If you foul your facility can certify a condition of "no exposure", i.e. the I'acilty 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 Weh Site at http://h2o.e"nr,s(aW.nc.us/su/storinwater.html
If the subject stormwater discharge to waters of the state has been terminated, please complete the unclosed
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 Joe Albiston of the Raleigh
Regional Office at 919-571-4700 or Bill Mills of the Central Office Stormwater Unit at [phone], ext. 548
Sincerely,
11�cG Ley.
Bradley Bennett, Supervisor
Stormwater and General Perm iIs Unit
cc: Central Files
Raleigh Regional Office
NCDENR
N. C. Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699.1617 [phone] Customer Service
1-800-623-7748

State of North Carolina
Department of Environment,
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
April 24, 1998
Ms. Felicia F. Mitchell
Cree Research, Inc.
4600 Silicon Drive
Durham, North Carolina 27703
Subject: General Permit No. NCG030000
Cree Research, Inc.
COC NCG030433
Durham County
Dear Ms. Mitchell:
In accordance with your application for discharge permit received on March 4, 1998, 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 Water Quality. 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 the
Division of Water Quality 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 Darren England at telephone number 9191733-
5083 ext. 545.
Sincerely,
ORIGINAL SIGNED BY
BRADLEY BENNETT
A. Preston Howard, Jr., P. E.
cc: Raleigh Regional Office
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

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
' '�_�. __ ►� I Ills
DOW
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,
Cree Research, Inc.
is hereby authorized to discharge stormwater from a facility located at
Cree Research, Inc.
4600 Silicon Drive
Durham
Durham County
to receiving waters designated as Stirrup Iron Creek in the Neuse River Basin
in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts 1,11, 111
and IV of General Permit No. NCGO30000 as attached.
This certificate of coverage shall become effective 04/24/98.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day 04/24/98.
ORIGINAL SIGNED BY
BRADLEY BENNETT
A. Preston Howard, Jr., P.E„ Director
Division of Water Quality
By Authority of the Environmental Management Commission

",D55 ,cis .,qb :epnl!6uo-1
hS ,�5 cS :apnj!Fe
ITJ
0,3
i �•: `
ZZ
r= .try,`_54 u6l�'!' O Rk
r 11 (jJ�-� ram. � � _ _ _ Lii ` n•^!! � % /, �Y1.... ', •, t :.' -: ` '� � %r_-`�-�
71
o��•
to
.erg •-t;,�``Y /%� ,1� r.' 1 .'emu )_ 1j d ; 1_• '�` �r
rr ` ,,
.� •, Jl' �� _ - ma's, •;..•, I �, �'1� ��;� ��,lj � � ����.�� � �, �,� �::; r/:
`
i151 r�r�_`� ;; 1 " r'� '�� •l i� f c/1�\_ a2f�� I ?�' i
a�_ , ``, 1 •w-� �J r' ',1��\ �/j �i'��i, � J OS�f ,\a- _ t' _lam i �I.�• �-�
;. _�� / '�� ;�� ; --ter - '°-; --• - --- - - � _ ---- - -= :''�'- � ' ' � Y .
=�
J �'.%✓ � rl I . •� �. °i' / l I kJl `�-�`L t Eiy6,- r . � �` — _
saijes ainu!W g'L
dew o!udea6odol sJsn
deal uo!leoo-I Al!l!oeA

POLITY' CRC-C TICs6Aaew , rNc.
COUNTY/ �DJLAOA
NPDES; N eG ¢2 464-33
MAP # -D z3
DSN: FLOW
SUB IRAS! N. 4�3
LATITUDE 33 ` sy
LOWIFUDE 7 d " sb' g
RECEIVING STREAM SL-j a" J"
STD V,,` CLASS
DISCH1, �GZ CLASS
EXPIRATIOF-4 DATE
e, ,JsL,.i
S. ..A.- L Y?-_
4e-al -4z

To: File
Fr: Darren England
Re: NCG030433
Date: 04/14/98
As per telephone conversation with Mr. Keith McCullough, a representative of Cree Research,
Inc. The hazardous materials generated by the facility are a by-product of microelectronics
manufacturing. All manufacturing processes are conducted indoors.
The hazardous materials generated by the facility include spent organic solvents, spent
inorganic corrosives, spent corrosive solid waste, spill clean-up material, spent aqueous inorganic
oxides, spent alkaline and lead batteries, and Methyl chloroform. The facility has a dedicated
hazardous material storage area with concrete floor, block walls, and curbed entrance. The storage area
is subdivided to keep caustics, acids, etc. separated. Each area has a manual sump that can be used to
clean-up spilled materials. The sumps are not connected to the sanitary sewer system or stormwater
conveyance system.
Advanced Environmental Technical Services of Creedmore, NC is the contractor for transport
and disposal of the facilities hazardous waste. The facility averages about 6 shipments per year.

_ __
a,?
j��
Division of Energy, Mineral & Land Resources
Land Quality Section/Stormwater Permitting
N�DENR
National Pollutant Discharge Elimination Svstetn
.� -
�'�
[+w,ow.rn ma N+w� I *Wwpqwu
PERMIT NAMEIOWNERSHIP CHANGE FORM
FCR AGENCY USE ONLY
Date Reepived
Year.
Mamtn
Da
1. Please enter the: permit number for which the change is requested.
NPDES Permit (or) Certificate of Coverage
,© G D 3
IL Permit status prior to requested change.
a. Permit issued to (company name):,a
b. Person legally responsible for pennit: 7'� rr., 13 /a/CoA
First J MI Lest
'rittlle T
,
Permit I (older Mailing Address
City State 'Lip
( q1U 3)3 -,5389 ( }_
Phone Fax
c. Facility name (discharge): im . _7i4 C , z o 2hnA ^
d. Facility. address: 1�d r;� j,r �} '.)L _
Address
City State Zip
e. Facility contact person: 7�,yr,,, 1 AZ2.ri,(�� } %
First / MI / Last Phone
III. Please provide the following for the requested change (revised permit).
a. Request for change is a result of: ❑ Change in ownership of the facility
Name chanjze_Uhe.,faci[ily or owner
ff olher please explain:
b. Permit issued to (corn ny name -
c. Person legally responsible for permit: l',r.l Jiti+ks
First Ml
Last
jj f
_ � !� [. a �} � r LJ(��. FfA'•M.•—.
/
- Title
Vr/
��ol.'d �'r�ir� air c:� �-•.
Permit Holder Mailing Address
Ur'h p,til /
1 ;2 2i" _J
City State
Zip t
►� ._ 4,o' 1 �.S C CELL ei
Phone E-mail Addro s
d. Facility name (discharge):
p i",ue— AA,,,�
-
e. Facility address:(-c,
�..
Address
A i_
—
City State
Zip
f. Facility contact person:
& 4ry0 ," i9,-. f
First %AI
Last
( M) io.;L -6 lol L,9gztfr1vuc,dew
Phone E-mail Address
1V. Permit contact information (if different from the person legally responsible for the permit)
Revised Jan. 27, 2014

NPOES PERMIT NAME/OWNERSHIP CHANGE FORM
Page 2 of 2
5
Permit contact: n. ;_
First MI� I Last
Title
Mailing Address
City State Zip
Phone E-mail Address
V Will the permitted facility continue to conduct the same industrial Activities conducted prior
to th
j,p6mership or name change?
Yes
❑ No (please explain)
V1 Required1tems: THIS APPLICATION WILL BE RETURNED UNPROCESSED IF ITEMS
ARE INCOMPLETE OR MISSING:
❑ This completed application is required for both name change find/or ownership change
requests.
❑ Legal documentation of the transfer of ownership (such as relevant pages of a contract deed,
or -a- bill.of sale) is. requirld for an ownership change request. Articles of incorporation are
not 'sufficient for an ownership change.
The certifications below must be completed and signed by both the permit holder prior to the change, and
the;new applicant in the case of an ownership change request. For a name change request, the signed
Applicant's Certification is sufficient.
PERMITTEE CERTIFICATION (Permii holder prior to ownership change):
1, . , attest that this application'for a name/ownership change has been reviewed and is accurate and
complete to the best of my knowledge. I understand that if all required parts of this application are not
completed and -that if all required supporting information is not included, this application package will be
returned as incomplete.
Signature
APPLICANT 'CERTIFICATION
Date
I, , attest es,", this application for a name/ownership change has been reviewed and is accurate and
complete,ta the st of nowledge. I understand thait if all required parts of this application are not
completed at ' quir supporting information. is not included, this application package will be
returned orn
Signature Date
PLEASE SEND THE COMPLETE APPLICATION PACKAGE TO:
Division of Energy, Mineral and Land Resources
Stormwater Permitting Program
1 612 Mail Service Center
Raleigh, North Carolina 27699-1612
Revised Jan, 27. 2014

NPDES PERMIT NAME/OWNERSHIP CHANGE FORM
Pa e2of2
Permit contact; knZ,
First Mi Last
�tYi} Ili°xf.'�i�i4'hli•I /4!I'��i�-r. �,.�✓
Title
Mailing Address
IV (1 c23W 3_
city State Zip
J zzNrrr
Phone E-mail Address
V. Will the permitted facility continue to conduct the same industrialactivities conducted prior
to thi wnersbip or name change?
Yes
❑ No (please explain)
VI Required Items: THIS APPLICATION WILL BE RETURNED UNPROCESSED IF ITEMS
ARE INCOMPLETE OR MISSING:
❑ This completed application is required for both name change and/or ownership change
requests.
❑ Legal documentation of the transfer of ownership (such as relevant pages of a contract deed,
or a bill of sale) is required for an ownership change request. Articles of incorporation are
not sufficient for an ownership change.
......................................................................................................................
The certifications below must be completed and signed by kgth the permit holder prior to the change, and
the.new applicant in the case of an ownership change request. For a name change request, the signed
Applicant's Certification is sufficient.
PERMITTEE CERTIFICATION (Permit holder prior to ownership change):
1, , attest that this application for a name/ownership change has been reviewed and is accurate and
complete to the best of my knowledge. I understand that if all required parts of this application are not
completed and that if all required supporting information is not included, this application package will be
returned as incomplete.
Signature Date
APPLICANT CERTIFICATION
I, atteI
this application for a namelownership change has been reviewed and is accurate and
complete to tt of ow edge. I understand that if all required parts of this application are not
completed ' quir supporting information is not included,.this application package will be
returned
031z-7 1 1
Signature Date
G EtCi/F C,l� l O w.i L-c
.....................................
PLEASE SEND THE COMPLETE APPLICATION PACKAGE TO:
Division of Energy, Mineral and Land Resources
Stormwater Permitting Program
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
Revised Jan. 27, 2014

Division of Energy, Mineral & Land Resources
Land
FOR AGENCY USE ONLY
Gate Received
—�_ Quality Section/Stormwater Permitting
Year Month
L>a
NCDENRNational Pollutant Discharge Elimination System
11om1(SIRIw OVM ' W
� KW_°som" PERMIT NAME/OWNERSHIP CHANGE FORM
1. Please enter the permit number for which the change is requested,
NPDES Permit (or) Certificate of Coverage
[N-1-01sLol I I N I FLFF070 13 10
1 - S _3
IL Permit status MdU to requested change.
a. Permit issued to (company name): C ep L, G
b, Person legally responsible for permit:
First MI
Last
^
Title
tt
Permit Holder Mailing Address
c—
.._17-7Q
City State
Zip
(�rq) .31:3 4;36/
( }
Phone
Fax
c. Facility name (discharge): L! , -7 cj 2, rliz
i
d. Facility address:
Address
City State
Zip
e. Facility contact person: i f,,Y,, .a? ., :�i
(e) / I) jo? -- 6I0!
First / M1 / Last
Phone
Ill. Please provide the following for the requested change (revised permit).
Request for change is a result of: ❑ Change in ownership of the facility
Name change of the facility or owner
Ifother please explain: (� ,v S F 1 A 4 �, k•'� . c,.�
b. Permit issued to (company name). 01 raL , ;r'gC _
c. Person legally responsible for permit: 4 -,e,;-)d �
First MI Last
Title
earw_ d-�... _
Permit Holder Mailing Address
City State Zip
Phone E-mail Addrt s
d. Facility name (discharge): t 7 "✓y . , L) i • h
e. Facility address: . (� � � ,/,; ts,,t C) 4' _---
Address
City 1 State zip
f, Facility contact person: rZ-I
First MI Last
OM —6 I i/ fA.w
Phone E-mail Address
IV. Permit contact information (if different from the person legally responsible for the permit)
Revised Jan. 27, 2014