NCG110054_COMPLETE FILE - HISTORICAL_20130607

STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
/V
DOC TYPE
2S HISTORICAL FILE
❑ MONITORING REPORTS
DOC DATE
❑ a n 13 D fa D r7
YYYYMMDD

A
� �Mja
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
Triangle W WTP
Attn: Glen E. Whisler, County Engineer
120 E Parrish St., Ist Floor
Durham, NC 27701
Division of Water Quality
Charles Wakild, P. E.
Director
June T. 2013
John E. Skvarla, III
Secretary
Subject: NPDES Stormwater Permit Coverage Renewal
COC 4NCG 110054
Dear Permittee:
In response to your renewal application for continued coverage under Stormwater General Permit
NCG 110000, the Division of Water Quality (DWQ) is forwarding herewith the reissued Certificate of Coverage
and 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 October 15, 2007 (or as subsequently amended.) The following
information is included with your permit package:
• A new Certificate of Coverage
+ A copy of the stormwater General Permit
+ A copy of a Technical Bulletin for the General Permit
• Copies of the Discharge Monitoring Report (DMR) Form
• Copies of the Annual Discharge Monitoring Report Form (if applicable)
• Copies of the Qualitative Monitoring Report Form
The General Permit authorizes discharges of stormwater only, and it specifies your obligations with respect to
stormwater discharge controls, management, monitoring, and record keeping. Please review the new permit to
familiarize yourself with all changes in the reissued permit. Significant changes to the General Permit are
outlined in the attached Technical Bulletin.
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 perrnittee 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 DWQ Stormwater Permitting Unit
at 919-807-6300.
Sincerely,
fbr Charles Wakild, P.E.
cc: DWQ Central Files
Stormwater Permitting Unit Files
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone]', FAX: [phone]
Internet: www.ngwatergualily.go
An Equal Opportunity 1 Affirmative Action Employer
None
rthCarolina
Naturally

Certificate of Coverage http://portal.ncdenr.org/web/wq/ws/su/permit-renewal
J \
STATE O1= NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT No. NCG1I0000
CERTIFICATE OF COVERAGE No. NCG110054
STORM WATER
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina Generai 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,
Durham County
is hereby authorized to discharge stormwater from a facility located at
"Triangle W W'I'P
5926 NC Hwy 55 E
Durham
Durham County
to receiving waters designated as Northeast Creek, class WS-IV;NSW water(s) in the Cape Fear River
Basin(s) in accordance with the stormwater pollution management requirements, monitoring and reporting
requirements, and other conditions set forth in Parts I, 11, 111 and IV of General Permit No. NCG 1 10000 as
attached.
This certificate of coverage shall become effective June 1, 2013.
This Certificate of Coverage shall remain effective for the duration of the General Permit.
Signed this day June 1, 2013.
for Charles Wakild, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
of 1 5/23/2013 9:28 AM

Atli
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P.E. Dee Freeman
Governor Director Secretary
December 18, 2012
Mr. Joseph Pearce, P.E.
Utility Division Manager
Durham County
5926 NC Hwy 55 E
Durham, NC 27713
Subject: Compliance Evaluation Inspection
Triangle WWTP
Permit No. NCO026051 and.NCG 110054
Durham County
Dear Mr. Pearce:
On November 27, 2012, Cheng Zhang of the Raleigh Regional Office (RRO) conducted a
compliance evaluation inspection of the subject facility. The assistance provided by you and Mr.
Bob Stewart, the wastewater superintendent and operator in responsible charge (ORC) of the
facility, was appreciated as it facilitated the inspection process. The inspection report is
attached. The following observations were made:
Triangle WWTP is permitted to discharge at a rate of 12.0 MGD and consist of: mechanical
fine screens, mechanical grit removal, Parshall flume, three 5-stage biological nutrient
removal (BNR) trains, four secondary clarifiers, five tertiary sand filters, post aeration
ultraviolet disinfection, sludge lagoons, waste and return activated sludge pumping system,
methanol, potassium hydroxide, and sodium hypochlorite storage and feed systems. The
plant discharges to Northeast Creek, a Class WS-IV NSW water in the Cape Fear River
basin.
All primary, secondary, and tertiary treatment and post -treatment processes, especially
the BNR system, were in good operational condition. One of the three BNR trains and
two of the four clarifiers and was not in use because of low flow. The chemical feed
systems for methanol, sodium aluminate, potassium hydroxide were all functioning well.
2. Sludge from the lagoon was removed recently. Construction of the sludge storage,
dewatering, and loading facility was slightly behind schedule at the time of inspection.
Once the construction is completed, the lagoon will serve as backup storage for wasted
sludge.
I Three standby power generators are tested under load monthly. The generators will be
activated automatically when primary power is out. The generators have capacity to
operate th�e0tire facility during nower outrage.
North Carolina Division of Water Quality 1628 Mail service Center Raleigh, NC 27699-1628 Phone (9t9) 791.4200 Customer service
intemet: www.nmaterquality,org Location; 3,900 Barrett Drive Raleigh, NC 27609 Fax (9t9) 788-7159 1-877-623-6748
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/] 0% Post Consumer Paper

tVf�
Trian'gle WWTP — Durham County
Permit No. NCO0260512 and NCG 110054
Compliance Evaluation Inspection
4, The ORC maintains a daily logbook. Lab results, chain -of -custody forms, and DMRs
were complete and current, kept in good order and ready for review. August 2012 DMR
data were compared to lab bench sheets; no data transcription errors were noted during
the inspection.
5. The right of way to the outfall was well maintained. The effluent was observed to be
clear and free of solids. No visible impacts were noted immediately downstream the
effluent pipe.
6. Field lab parameter (Certificate No. 671) calibration and analysis records were reviewed
during the inspection.
7. A compliance evaluation inspection for the NPDES stormwater permit (No.
NCGI 10054) was also conducted. The facility has developed and implemented a
Stormwater Pollution Prevention Plan (SPPP), which includes all required components.
All stormwater discharge outfalls were observed; these outfalls and the right-of-way were
well maintained. Please be reminded to conduct annual employee training and
second stormwater qualitative monitoring before the end of 2012.
The overall condition of Triangle WWTP is compliant with Division standards. If you have any
questions regarding the attached reports or any of the findings, please contact Cheng Zhang at:
[phone] (or email: cheng.zhang-,,0ncdenr.trov).
Sincerely,
Cheng Zhang
Environmental Specialist
Attachments
Compliance Inspection Reports
Cc: Central Files w/attachment
Raleigh Regional Office w/attachment
Rob Stewart — ORC w/attachment
Durham County

j i
Permit: NCG110054
SOC:
County: Durham
Region: Raleigh
Compliance Inspection Report
Effective: 06/01/08 Expiration: 05/31/13 Owner: Durham County
Effective: Expiration: Facility: Triangle WWTP
5926 NC Hwy 55 E
Contact Person: Joseph R Pearce
Directions to Facility:
System Classifications:
Primary ORC:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Inspection Date: 1112712012
Primary Inspector: Chang Zhang
Secondary Inspector(s):
Title: Director
Certification
Durham NC 27701
Phone: [phone]
Entry Time: 01:00 PM Exit Time: 03:30 PM
Phone:
Phone: [phone]
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Municipal WWTP > 1 MGD, Stormwater Discharge, COC
Facility Status: ■ Compliant Q Not Compliant
Question Areas:
Storm Water
(See attachment summary)
Page: 1

Permit: NCG110054 Owner - Facility: Durham County
Inspection Date: 11/27/2012 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?
# floes 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: Employee training will be conducted by the end of 2012.
Qualitative Monitoring
Has the facility conducted its Qualitative Monitoring semi-annually?
Yes No NA NE
■❑❑❑
Comment: Second qualitative monitoring will be conducted by the end of 2012,
Analytical Monitoring Yes No NA NE
Has the facility conducted its Analytical monitoring? ❑ ❑ ■ ❑
# Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas? ❑ ❑ ■ ❑
Comment:
Permit and Outfalls
Yes
No
NA
NE
# Is a copy of the Permit and the Certificate of Coverage available at the site?
■
❑
❑
❑
# Were all outfalls observed during the inspection?
■
❑
❑
❑
# If the facility has representative outfall status, is it properly documented by the Division?
❑
❑
■
❑
# Has the facility evaluated all illicit (non stormwater) discharges?
❑
❑
❑
Comment:
Page: 3

ALT, EEFF
1�
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coieen H. Sullins Dee Freeman
Governor Director Secretary
December 7, 2011
Mr. Joseph Pearce, P.E.
Utility Division Manager
Durham County
5926 NC Hwy 55 E
Durham, NC 27713
Subject: Compliance Evaluation Inspection
Triangle WWTP
Permit No. NCO026051 and NCG 110054
Durham County
Dear Mr. Pearce:
On November 21, 2011, I, Cheng Zhang of the Raleigh. Regional Office (PRO) conducted a
compliance evaluation inspection of the subject facility. The assistance provided by you and Mr.
Bob Stewart, the wastewater superintendent and operator in responsible charge (ORC) of the
facility, was appreciated as it facilitated the inspection process. The inspection report is
attached.. The following observations were made:
Triangle WWTP is permitted to discharge at a rate of 12.0 MGD and consist of- mechanical
fine screens, mechanical grit removal, Parshall flume, three 5-stage biological nutrient
removal (BNR) trains, four secondary clarifiers, five tertiary sand filters, post aeration
ultraviolet disinfection, sludge lagoons, waste and return activated sludge pumping system,
methanol, potassium hydroxide, and sodium hypochlorite storage and feed systems. The
plant discharges to Northeast Creek, a Class WS-IV NSW water in the Cape Fear River
basin.
1. All primary, secondary, and tertiary treatment and post -treatment processes, especially
the BNR system, were in good operational condition. One of the three BNR trains and
two of the four clarifiers and was not in use because of low flow. The chemical feed
systems for methanol, sodium aluminate, potassium hydroxide were all Functioning well.
2. Waste activated sludge is pumped to the sludge lagoon, from which a contractor dredges
and treats the sludge with a belt press.
3. Three standby power generators are tested under load monthly. The generators will be
activated automatically when primary power is out. The generators have capacity to
operate the entire facility during power outrage.
North Carolina Division of Water Quality 1628 Mail Service Center Raleigh, NC 27699-1028 Phone [phone] Customer Service
Intemet: nuw.nc%vaterquality,org Location; 3800 Barrett Drive Raleigh, NC 27609 F�LX [phone] 1-977-623-6748
An Equal Opponunity/Affirmative action Employer —50%RceycUll0°/ Post Consumer Paper

L
Triangle WWTP — Durham County
Permit No. NCO0260512 and NCG 110054
Compliance Evaluation Inspection
4. The ORC maintains a daily logbook. Lab results, chain -of -custody forms, and DMRs
were complete and current, kept in good order and ready for review. July 2011 DMR data
were compared to lab bench sheets, no data transcription errors were noted during the
inspection.
The right of way to the outfall was well maintained. The effluent was observed to be
clear and free of solids. No visible impacts were noted immediately downstream the
effluent pipe.
6. I also conducted a compliance evaluation inspection for the NPDES stormwater permit
(No. NCG 110054). The facility has developed and implemented a Stormwater Pollution
Prevention Plan (SPPP), which includes all required components. I observed all
stormwater discharge outfalls, these outfalls and the right-of-way were well maintained.
The overall condition of Triangle WWTP is compliant with Division standards. if you have any
questions regarding the attached reports or any of the findings, please contact Cheng Zhang at:
[phone] (or email: chengzhang&cderingov).
Sincerely,
Cheng Zhang
Environmental Specialist
Attachments
Compliance inspection Reports
Cc: Central Files w/attachment
Raleigh Regional Office w/attachment
Rob Stewart — ORC wlattachment
Durham County

i 1.
Compliance Inspection Report
Permit: NCGI10054 Effective: 06/01/08 Expiration: 05/31/13 Owner: Durham County
SOC: Effective: Expiration: Facility: Triangle WWTP
County: Durham 5926 NC Hwy 55 E
Region: Raleigh
Durham NC 27701
Contact Person: Joseph R Pearce Title: Director Phone: [phone]
Directions to Facility:
System Classifications:
Primary ORC: Certification: Phone:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Inspection Date: 11121/2011 Entry Time: 09:00 AM Exit Time: 12:00 PM
Primary Inspector: Cheng Zhang Phone: [phone]
Secondary Inspector(s):
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Municipal WWTP > 1MGD, Stormwater Discharge, COC
Facility Status: ■ Compliant ❑ Not Compliant
Question Areas:
Storm Water
(See attachment summary)
Page: 1

Permit: NCG110054 owner -Facility: Durham County
Inspection Date: 11/21/2011 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:
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?
ODE
❑
Comment:
Permit and Outfalls
Yes
No
NA
NE
# Is a copy of the Permit and the Certificate of Coverage available at the site?
■
❑
❑
❑
# Were all outfalis observed during the inspection?
■
❑
❑
❑
# If the facility has representative outfall status, is it properly documented by the Division?
❑
❑
■
❑
# Has the facility evaluated all illicit (non stormwater) discharges?
■
❑
❑
❑
Comment:
Page: 3

North Carolina
Beverly Eaves Perdue
Governor
Mr. Glen Whisler, F.E.
120 E. Parrish Street, I" Floor
Durham, NC 27701
NIFAA
AN, '
j;A' R�ng MT�Fm
2;=
a __ 1/';U / 0
NC®ENR
Department of Environment and Natural Resources
Division of Water Quality
Coleen H. Sullins
Director
January 12, 2010
Subject: Compliance Evaluation Inspection
Durham County Triangle Wastewater Treatment Plant (WWTP)
NPDES Permit Number NCO026051
Siormwater Permit Number NCG 110054
Durham County
Dear Mr. Whisler:
Dee Freeman
Secretary
On January 7, 2010, Mrs. Mandy Hall and Ms. Vicki Webb of the Raleigh Regional Office conducted a
compliance evaluation inspection of the Triangle WWTP with the assistance of Mrs. Stephanie Brixey,
compliance manager, Mr. Tony Mencome, superintendent of the facility, Mr. Rob Stewart, operator in
responsible charge (ORC), and Mr, Joe Pearce, Utility Division Manager. Their help was appreciated as
it facilitated the inspection process.
The following observations were made:
I. The Durham County is authorized to discharge wastewater from the facility located at Durham
County Triangle WWTP, 5926 NC Highway 55, in Durham County. The permit expires April
30, 2011. The facility discharges into the receiving waters designated as Northeast Creek, a
stream classified as WS-IV, nutrient sensitive water (NSW) waters within the Cape Fear River
Basin.
2. The Triangle WWTP is permitted to discharge at a rate of 12 MGD and consists of: mechanical
fine screens, mechanical grit collection unit, influent pump station, parshall flume, three 5-stage
BNR trains, four secondary clarifiers, five tertiary filters, UItraviolet disinfection, post aeration,
sludge lagoons, waste and return activated sludge pumping system, and methanol, potassium
hydroxide, and sodium hypochlorite storage and feed systems.
3. Chlorine, Dissolved Oxygen, pH, and Temperature are analyzed in-house. All other parameters
are analyzed by Meritech Laboratories.
4, A file review of the plant records indicated that all records are being kept as required. A
comparison of the April 2009 and August 2009 DMRs indicated no discrepancies.
.One hCaroli na
Natimallty
North Carolina Division of Water Quality Raleigh Regional Office Surface Water Protection Phone [phone] Customer Service
Internet: www.ncwaterquality.org 1628 Mail Service Center Raleigh, NC 27699.1628 FAX [phone]
An Equal Opportunity/Affirmative Action Employer — 50% Recycled110% Post Consumer Paper

Durham County Triangle WWTP
NC0026051 and-NCG I' 10054 ' '
Durham County' , r ''
5. " The plant and laboratory was very clean and well maintained. No operational or maintenance
issues were noted. Visitation and operations logs were reviewed and found to be complete and
satisfactory.
6. A compliance evaluation inspection was also conducted of the facility's Stormwater Permit
NCG110054 during the January 71h visit. All of the facility's stormwater outfalls were observed
during the inspection. The facility has installed several berms at the Headworks to prevent
overspray and excess washdown water from entering Outfall 005. This has complied with the
feasible alternative practices in the SW Permit. In addition, the area downstream of Outfall 002
has become inundated due to beaver dams. This property is located on the periphery of the Army
Corps of Engineers property. Contact Eric Alsmeyer with the Corps at 919-554-4884 regarding
removal of the beavers. All outfalls were in excellent condition.
7. The stormwater pollution prevention plan (SP3) was reviewed. It contained all the required
components and met all requirements. Qualitative and quantitative inspection records were
available for review and found to be complete and acceptable.
The overall conditions of the Durham County Triangle WWTP are compliant with Division standards.
If you have questions regarding the attached report or any of my findings, please contact Vicki Webb at:
[phone] (or email: vicki.webb c .ncdenr. ov}.
Sincerely
Vicki Webb
Environmental Specialist
Cc: (RRO-SWP files
Central Files

Compliance Inspection Report
Permit: NCG110054 Effective: 06/01/08 Expiration: 05/31/13 Owner: Durham County
SOC: Effective: Expiration: Facility: Triangle WWTP
County: Durham 5926 NC Hwy 55 E
Region: Raleigh
Durham NC 27701
Contact Person: Joseph R Pearce Title: Phone: [phone]
Directions to Facility:
System Classifications:
Primary ORC: Certification: Phone:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Inspection Date: 01/0712010 Entry Time: 09:17 AM Exit Time: 11:56 AM
Primary Inspector: Vicki Webb 2^� 1� 5�-- -L r Phone:
Secondary Inspector(s):
Mandy Hall;b 0 Phone:
Reason for Inspection: Routine ' l Inspection Type: Compliance Evaluation
Permit Inspection Type: Municipal WWTP > 1 MGD, Stormwater Discharge, COC
Facility Status: ■ Compliant ❑ Not Compliant
Question Areas:
■ Storm Water
(See attachment summary)
Page: 1

Permit: NCG110054 Owner • Facility: Durham County
Inspection Date: 01/07/2010 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
Page: 2

Permit: NCG110054 Owner -Facility: Durham County
Inspection Date: 01/07/2010 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:
Qualitative Monitoring
Yes
No
NA
NE
Has the facility conducted its Qualitative Monitoring semi-annually?
■
❑
Cl
❑
Comment:
Analytical Monitoring
Yes.
No
NA
NE
Has the facility conducted its Analytical monitoring?
❑
❑
■
❑
# Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas?
❑
❑
■
❑
Comment:
Permit and Outfalls
Yes
No
NA
NE
# Is a copy of the Permit and the Certificate of Coverage available at the site?
■
❑
❑
❑
# Were all outfalls observed during the inspection?
■
❑
❑
❑
# If the facility has representative outfall status, is it properly documented by the Division?
❑
❑
■
❑
# Has the facility evaluated all illicit (non Stormwater) discharges?
■
❑
❑
❑
Comment
Page: 3

AAZA
NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Mr. Glen Whisler, P.E.
Engineering Department
120 E. Parrish Street, I" Floor
Durham, NC 27701
Division of Water Quality
Coleen H. Sullins
Director
August 24, 2009
SUBJECT: Stormwater Compliance Evaluation Inspection
Durham Triangle W WTP
Permit No: NCGI 10054
Durham County
Dear Mr. Whisler:
Dee Freeman
Secretary
On June 18, 2009, Mack Wiggins and Mandy Hall of the North Carolina Division of Water Quality,
Surface Water Protection Section, Raleigh Regional Office, conducted a stormwater compliance
evaluation inspection of the Durham Triangle, at 5926 NC Highway 55 E. The assistance offered by Mr.
Joseph Pearce, Utility Division Manager, Mr. Tony Mencome, Wastewater Superintendent and Back-up ORC,
Mr. Andy Lambeth, Project Manager and Mr. Boyd McKenzie, Collection ORC and Maintenance Manager was
appreciated. The facility was found to be in Compliance with General Permit NCI 10000 at the time of this
inspection.
I. The following observations were made during the stormwater inspection:
1. The Stormwater Pollution Prevention Plan for this facility contained all the components as
required by NCGI 10000. The facility must continue to aggressively implement the plan.
2. The facility has seven stormwater outfalls. Qualitative monitoring was performed at the
stormwater outfalls as required by NCG 110000. Continue to monitor your outfaIls.
Qualitative monitoring must be conducted during the fall months (September - November),
and during the spring months (April -June) and recorded on the attached forms provided by
DWQ.
3. Analytical monitoring is not required at this facility. The facility does not have any vehicle
maintenance activity and does not use more than 55 gallons of new motor oil per month
when averaged over a calendar year.
4. All chemicals are stored in the secondary containment as required.
5. The facility had improved their mapping to include aerial photographs with location
overlays.
one NhCarolma
Naturally
North Carolina Division of Water Quality Raleigh Regional Office Surface Water Protection Phone [phone] Customer Service
Internet: www.ncwaterquality.org 1628 Mail Service Center Raleigh, NC 27699-1628 FAX [phone]
An Equal Opportunity/Affirmative Action Employer — 50% Recycled110°k Post Consumer Paper

Mr. Gl&lWliisle`r�*7 V I r
C e 'of Durliam����:'
ountyl
August 2 2
II. Stormwater outfall observations:
From visual inspections, most stormwater outfalls were in good condition. Stormwater outfall 001
had some standing water which was clear with little turbidity.
Thanks for your cooperation during the inspection. If you or your staff have any questions, please call
me at [phone].
Sincerely,
ack Wiggins
Environmental Specialist
Raleigh Regional Office
Cc' Durham County Health Department
Central Files
�R FilS3

Permit: NCG110054
SOC:
County: Durham
Region: Raleigh
Compliance Inspection Report
Effective: 06/01/08 Expiration: 05/31/13 Owner: Durham County
Effective: Expiration: Facility: Triangle WWTP
5926 NC Hwy 55 E
Contact Person: Joseph R Pearce
Directions to Facility:
System Classifications:
Primary ORC:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Title:
Inspection Date: 0611812009 Entry Time: 11:30 AM
Primary Inspector: Mack K Wiggins M Ll iA/
Secondary Inspector(s):
Durham NC 27701
Phone: [phone]
Certification:
Exit Time: 06:00 PM
Phone:
Phone: [phone]
Reason for Inspection: Routine Inspection Type: Stormwater
Permit Inspection Type: Municipal WWTP > 1MGD, Stormwater Discharge, COC
Facility Status, ■ Compliant ❑ Not Compliant
Question Areas:.
E Storm Water
(See attachment summary)
Page: 1

Permit: NCG110054 Owner -Facility: Durham County
Inspection Date: O6/1812009 Inspection Type: Stormwater
Inspection Summary:
Reason for Visit: Routine
Page: 2

Permit: NCG110054 Owner - Facility: Durham County
Inspection Date: 06/18/2009 Inspection Type: Stormwater
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"?
■
n
n
n
# Does the Plan include a detailed site map including outfall locations and drainage areas?
■
n
n
n
# Does the Plan include a list of significant spills occurring during the past 3 years?
■
n
n
❑
# Has the facility evaluated feasible alternatives to current practices?
■
n
❑
n
# Does the facility provide all necessary secondary containment?
■
n
❑
❑
# 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?
■
n
n
n
# Does the Plan include a list of Responsible Party(s)?
■
❑
n
❑
# Is the Plan reviewed and updated annually?
■
n
n
n
# Does the Plan include a Stormwater Facility Inspection Program?
■
❑
❑
❑
Has the Stormwater Pollution Prevention Plan been implemented?
■
D
❑
❑
Comment: Less than 9 % of the plant site is impervious. The plant site in 93 acres.
Qualitative Monitoring
Yes
No
NA
NE
Has the facility conducted its Qualitative Monitoring semi-annually?
■
❑
n
❑
Comment: Recommend that the ORC use the qualitative monitoring forms provided by
the DWQ.
Analytical Monitoring
Yes
No
NA
NE
Has the facility conducted its Analytical monitoring?
❑
■
❑
n
# Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas?
❑
■
❑
❑
Comment: The facility does not use more than 55 gallons of new motor oil when
averaged over a calendar year. The site does not do 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?
■
n
n
❑
# Were all outfalls observed during the inspection?
■
r1
fl
❑
# If the facility has representative outfall status, is it properly documented by the Division?
n
❑
■
❑
# Has the facility evaluated all illicit (non stormwater) discharges?
■
❑
❑
❑
Page: 3

Permit: NCG110054 Owner -Facility: Durham County
Inspection bate: 0611 B12009 Inspection Type: Stormwater Reason for Visit: Routine
Comment: Generally most stormwater outfalls were in good condition, Stormwater
outfall 001 had standing water which was clear with little turbidity. Stormwater outfall
003 was plugged at the time of the inspection. Please clear stormwater outfall 003.
Page: 4

f
COUNTY OF DURHAM
ENGINEERING DEPARTMENT
October 20, 2008
RETURN RECEIPT REQUESTED
CERTIFIED MAIL 4 7002 0860 0008 6301 8601
Mack Wiggins, Environmental Specialist
Division of Water Quality -Raleigh Regional Office
Water Quality Section
1628 Mail Service Center
Raleigh, NC 27699-1628
Re: Stormwater Compliance Evaluation Inspection
Triangle Wastewater Treatment Plant (TWWTP)
Permit No.: NCG110054 — Durham County
Dear Mr. Wiggins:
jfir= i�7 EL �, �•�� {�� �
I I•
OCT 2 4 2M8
fDENR RAi_EiG,1 OFf10i;+
On August 2, 2008, Durham County staff and United Water staff participated in a
stormwater compliance system inspection with you. On September 25, 2008, we
received the stormwater compliance inspection system report. This report requests that
we respond to items 1 through 4 of section I1 within 30 days of our receipt of this report.
I have had our contractor, United Water, prepare this response, see attachment.
If you have any questions regarding this response, please feel free to contact me at 919-
560-7992.
Sincerely,
PJosePearce, P.E.
ision Manager
Encls:
cc: Glenn Vance, TWWTP ORC — United Water
Richard Simms, Project Manager
JRP/jld
120 E. Parrish Street, Law Bldg., Ist Floor, Durham, N,C. 27701 [phone] Fax [phone]
Equal Employment/Affirmative Action Employer

° United
0
October 16, 2008
Water
SUCZ
Mr. Joseph R. Pearce, P.I.
Utility Division Manager, Durham County
5926NC Hwy 55 East
Durham, North Carolina 27713-4481
Subject: SWP3 Compliance Inspection
Dear Mr. Pearce;
United Water Hydro Management LLC
Triangle Wastewater Treatment Plant
5296 NC Highway 55 East
Durham, North Carolina 27713
telephone [phone]
facsimile 919 544-8590
C7
OCT 2 4 Z2
E
DENR RALEIGH RCGICi�,L OFFICE I
On August 2, 2008, Mr. Mack Wiggins of the North Carolina Division of Water Quality, Surface
Water Protection Section, Raleigh Regional Office, conducted a stormwater compliance
evaluation inspection of our facility. As a result of the SWP3 compliance inspection there were
several observations made that needed to be addressed within our Stormwater Pollution
Prevention Plan. Please note our response for each one of the observations made. "These were:
• Observation #I: Documentation of any spill and corrective actions taken to mitigate spill
impacts when they occur.
Response: Section 4.2 of our Plan addressees this observation and is updated regularly.
• Observation 42: The Stormwater Pollution Prevention Plan must be reviewed and
updated annually.
Response: Section 6.2 of our Plan addresses this observation, however, the word annually
has been inserted into the language to further clarify our current practice of annual
updates, see attachment # 1.
• Observation #3: The plan must addresslincltide a feasibility study, whereby the possible
elimination or reduction of exposure of pollutants to stormwater is assessed.
Response: Roadway weep holes for stormwater collection system have had plugs placed
within them. This will capture any small spill and can be opened after cleanup.
• Observation 44: The plan must show employee signatures. Employee signature document
that the employee has received training for spill response, cleanup procedures and
preventive maintenance.
Response: Section 5.3 of our Plan addressees this observation, however, at the time of
this inspection the latest documentation was not copied into the Plan. The original
training documents are kept in a separate file near the operations area of the

administrative building. This oversight has been corrected and moving forward greater
emphasis will be placed on keeping the documents in both places, see attachment #2.
Should you have any questions, comments or require additional information, please do not
hesitate to contact me.
S
Frankie Olin }the
United Watyt
Project Manager, Triangle WWTP
Attachments
1. Copy of page where manual insertion was made to include the word "annually". "]'his will
be formalized during our next review.
2. Copy of training sign in list.
cc: Mr. Richard Simms, Utility Project Manager

Durham County Triangle Wastewater Treatment Facility
Storm Water Pollution Prevention Plan
6.0 ANNUAL SITE COMPLIANCE EVALUATION & PLAN REVISIONS
ATTACHMENT 01
6.1 ANNUAL SITE COMPLIANCE EVALUATION
Triangle WWTP must conduct an Annual Site Compliance Evaluation of the storm water
management practices in use. The objective of the evaluation is to assess the .overall
effectiveness of this SWP3 and to modify and improve the SWP3, as appropriate. This annual
evaluation is conducted by Triangle Wastewater Treatment Facility's SWP3 Team and typically
occurs during the fourth quarter of each year. The evaluation includes the following elements:
• Inspect storm water drainage areas for evidence of pollutants entering the drainage
system;
• Ensure the drainage area delineations remain accurate and the figures are updated, as
necessary;
• Assess whether improvements to BMPs or additional control measures are needed;
and
• Revise the list of significant materials, industrial activities and potential pollutant
sources, as necessary.
The Annual Site Compliance Inspection form contained in Appendix G will be used to record the
findings of the evaluation. Completed inspection forms will be maintained in Appendix G of this
SWP3.
6.2 PLAN REVISIONS
Based on the findings of the Annual Site Compliance Evaluation, the SWP3 must be revised
annually to reflect current conditions. Necessary facility changes will be implemented as soon as
practical. Facility changes in design, construction, operations or maintenance that may impact
the potential for storm water pollutants will also require the SWP3 to be amended. Once the
SWP3 is revised, it must be signed by the Operations Manager. Section 1.3 Facility Certification
will be re -certified with each SWP3 revision.
This SWP3 is retained with the storm water records in the Triangle WWTP central files.
�.°United Water

United Water it$"
Name of Training Coordinator:
TRAINING DOCUMENTATION FORM
Page 1 of 2
Phone Number:
PIease complete the form in its entirety and forward to your local Human Resource Department. For all safety training, a copy of the Training Documentation
Form must be kept on site in the safety training rile for five years.
To be completed by Human Resources
Title of Training Session: 08 Stormwater COURSE CODE:
SESSION ID:
Category: (please check one)
❑ Internal ❑ External
❑
01
General/Business Skills: training or learning that facilitates learning at work, i.e., team skills,
communications, etc.
CEU: (if applicable)
®
02
Technical/Job-specific: training or learning that lead to improved job -specific skills and
capabilities
Course Description:
❑
03
Management Development
❑
04
Safety/Quality
❑
05
Computer
❑
06
Customer Service
❑
07
Continuing Education
❑
08
Suez University
Course Prerequisites: (if applicable)
❑
09
Personal Development: promotes, continuous learning, i.e., Dale Carnegie, project team
participation, etc.
❑
10
Other
Primary Delivery Method: (please check one)
Materials Used: (please check all that apply)
Date of Training: 4/15/08
N Instructor Led
❑ TVNCR
Time: {$am-0700
❑ On -the -,lob Training
❑ Flip Charts
Durationn:: 1.0 hr
❑ Computer Based
❑ Audio
®Handouts
El Workbooks
Cost per student: (e.g. training space, materials,
❑ Video
❑ Other (please specify)
food, lodging, facilitator fee}
❑ Self Stud
Training Location: (please include address)
Instructor Name:
Vendor:
Reason for Training:
TWWTP
GV
❑ New Information
❑ Recertification
Phone/Fax:
Vendor Address:
® Refresher
❑ Career Development
❑ Skill Development
❑ OSHA Requirement
01/30/02 HSF-001
Retain safety training documentation on site for five years.

TJnitedWater �$' TRAINING DOCUMENTATION FORM
•. Page 2 or
08 Stormwater
Employee ID
Name
Signature..
G V,C
�.
2-
S 17
01/30/02 HSF-001
Retain safety training documentation on site for five years.

Postal
(DomesticCERTIFIED MAIL-r. RECEIPT
ru For delivery Information visit our website at wwwxspsxom�p
r� 1 0 F F I C I A L UE
4' Postage $
M
Certified Fee
fl
Retum Receipt Fee Postmark
E3 (Endorsement Required) Here
O
Restricted Delivery Fee
E3 iEndorsement Required)
M
L1 Total MR. JOSEPH PEARCE, UTILITY DIVISION MANAGER
C:1 ENGINEERING DEPT. — COUNTY OF DURHAM
ro ent , 120 E. PARRISH STREET, 1ST FLOOR
M DURHAM, NC 27701
p STORMWATER.CELNCG110054.DURHAM.Co
Street,
or PO 9124/08.MAILED. 9/24/08.SWP.WIGGINS
PS Form :0r August 2006

Complete items 1, 2, and 3. Also complete
item 4 if Restricted Delivery is desired.
■ Print.your name and address on the reverse
so that we can return the card to you.
■ Attach this card to the back of the mailpiece,
or on the front if space permits.
Article Addressed to:
MR. JOSEPH PEARCE, UTILITY DNISiON MANAGER
ENGINEERING DEPT. — COUNTY OF DURHAM
120 E. PARRISH STREET, 1ST FLOOR
DURHAM, NC 277.01
STORMWATER.CEI.NCG110054.DURHAM.CO.
9124108.MAILED. 9124108.SWP WIGGINS
A Sign turn I
X , ,tJf/
❑ Agent
❑ Addressee
eceived bWrirlired Ne J
C. Date of Delivery
L.
D. is delivery address different from item 1?
❑ Yes
If YES, enter delivery address below:
❑ No
ti
3. Service Type
JIM Certified Mail ❑ Express Mail
© Registered 12 Aetum Receipt for Merchandise
❑ Insured Mail ❑ C.O.D.
4. Restricted Delivery? (Extra Fee)
❑ Yes
2. Article Number (r7008 0500 QQQQ 3917; 2415
'iarrsler from service laben
P5 Form 3811, February 2004 Domestic Return Receipt 102595-02-M-1540

UNITED STS'PS��,�tt�3EFiVECE�h:':'
Sender: Please print your name, address, and ZIP+4 in this box •
[LP 1Ii ;
iRaleigh Regional Office
w Surface Water Protection
i$q 1628 Mail Service Center
i b tW aikpvl!!td Raleigh, NC 27699
U jj E�imlrei�dfL uaEResdrre!
o �.

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
September 24, 2008
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
7008 0500 0000 3917 2415
Mr, Joseph R. Pearce, Utility Division Manager
Engineering Department
County of Durham
120 E. Parrish Street, I" Floor
Durham, North Carolina 27701
SUBJECT: Stormwater Compliance Evaluation Inspection
Durham Triangle W WTP
Permit No: NCG 110054
Durham County
Dear Mr. Pearce:
On August 2, 2008, Mack Wiggins of the North Carolina Division of Water Quality, Surface
Water Protection Section, Raleigh Regional Office, conducted a stormwater compliance evaluation
inspection of the Durham Triangle, at 5926 NC Highway 55 E. Your assistance and cooperation
was very helpful and appreciated during the inspection process.
I. The following observations were made during the stormwater inspection:
The Stormwater Pollution Prevention Plan for this facility contained all the components
as required by NCGI I0000. The facility must continue to aggressively implement the
plan.
2. Qualitative monitoring was performed at the stormwater outfalls as required by
NCG 110000. Continue to monitor your outfalls. Qualitative monitoring must be
conducted during the fall months (September -November), and during the spring months
(April -June) and recorded on the forms provided by DWQ.
3. Analytical monitoring is not required at this facility. The facility does not have any
vehicle maintenance activity and does not use more than 55 gallons of new motor oil
per month when averaged over a calendar year.
4. All chemicals are stored in the secondary containment as required.
Raleigh Regional office 1628 Mail Service Center phone [phone]
Water Quality Section Raleigh, NC 27699-1628 facsimile [phone]
Customer Service
1-800-623-7748
jan
NCDENR

Mr. Joseph Pearce, P•E., Utility Division Manager
Page 2
ti
II. Please note the Stormwater Pollution Prevention Plan must address the following:
1. Documentation of any spill and corrective actions taken to mitigate spill impacts when
they occur.
2. The Stormwater Pollution Prevention Plan must be reviewed and updated annually.
3. The plan must address/include a feasibility study, whereby the possible elimination or
reduction of exposure of pollutants to stormwater is assessed.
4. The plan must show employee signatures. Employee signature document that the
employee has received training for spill response, cleanup procedures and preventive
maintenance.
Please respond to items I through 4 of section I1 within 30 days of receipt of this letter. Thanks for
your cooperation during the inspection. If you or your staff have any questions, please call me at
[phone].
Sincerely,
�lL
Mack Wiggins
Environmental Specialist
Surface Water Protection
cc: Central Files
RRO File

Compliance Inspection Report
Permit: NCG110054 Effective: 06/01/08 Expiration: 05/31/13 Owner: Durham County
SOC: Effective: Expiration: Facility: Triangle WWfP
County: Durham 5926 NC Hwy 55 E
Region. Raleigh
Durham NC 27701
Contact Person. Joseph R Pearce Title: Phone: [phone]
Directions to Facility:
System Classifications:
Primary ORC:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Certification: Phone:
Inspection Date: 09/02/2008 Entry Time: 12:00 PM Exit Time: 06:00 PM
Primary Inspector: Mack K Wiggins 41X-A) Phone: [phone]
Secondary Inspector(s): '
Reason for Inspection: Routine Inspection Type: Stormwater
Permit Inspection Type: Municipal VWVrP > 1 MGD, Stormwater Discharge, COC
Facility Status: ■ Compliant 0 Not Compliant
Question Areas:
0 Storm Water
(See attachment summary)
Page: 1

Permit: NCG110054 Owner -Facility: Durham County
Inspection Date: 09/02/2008 Inspection Type: Stormwater Reason for Visit: Routine
Inspection Summary:
Page: 2

.+
Permit: NCG110054 Owner -Facility: Durham County
Inspection Date: 09/02/2008 Inspection Type: Stormwater
Stormwater Pollution Prevention Plan
Does the site have a Stormwater Pollution Prevention Plan?
# Does the Plan Include a General Location (USGS) map?
# Does the Plan include a "Narrative Description of Practices"?
# Does the Plan include a detailed site map including outfall locations and drainage areas?
# Does the Plan include a list of significant spills occurring during the past 3 years?
# Has the facility evaluated feasible alternatives to current practices?
# Does the facility provide all necessary secondary containment?
# Does the Plan include a BMP summary?
# Does the Plan include a Spill Prevention and Response Plan (SPRP)?
# Does the Plan include a Preventative Maintenance and Good Housekeeping Plan?
# Does the facility provide and document Employee Training?
# Does the Plan include a list of Responsible Party(s)?
# Is the Plan reviewed and updated annually?
# Does the Plan include a Stormwater Facility Inspection Program?
Has the Stormwater Pollution Prevention Plan been implemented?
Reason for VIsIt; Routine
Comment: The plant site is 93 acres. Less than 9% of the plant site is impervious.
When spills occur the SWPPP need to address corrective actions taken to mitigate spill
impacts. The plan need to address that the SWPPP will be reviewed updated annually.
The SWPPP need to state that a feasibility study will always be conducted. The Plan
needs to show employee signatures which received training in spill response, cleanup
procedures and preventative maintenance.
Qualitative Monitoring
Has the facility conducted its Qualitative Monitoring semi-annually?
Comment: The ORC must use the state monitoring forms provided when conducting
qualitative monitoring.
Analytical Monitoring
Has the facility conducted its Analytical monitoring?
# Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas?
Comment: The facility does not have any vehicle maintenance activity and does not
use more than 55 gallons of new motor oil when averaged over a calendar year.
Permit and Outfalls
# Is a copy of the Permit and the Certificate of Coverage available at the site?
Yes
No
NA
N E
■000
Yes
No
NA
NE
❑
❑
■
❑
1=000
Yes
No
NA
NE
■000
Page: 3

N
Permit: NCG110054 Owner -Facility: Durham County
Inspection Date: 09/02/2008 Inspection Type: 5lormwater Reason for Visit: Routine
# Were all outfalls observed during the inspection?
■❑D0
# If the facility has representative outfall status, is it properly documented by the Division? 0 D ■ D
# Has the facility evaluated all illicit (non stormwater) discharges?
Comment: The faciity has five outfalls. All outfall locations are clear and accessible
for monitoring.
■ ❑ n 0
Page: 4

Michael E. Easley, Govcrnor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality
March 7, 2008
Ms. Vickie Dudiek
NC National Guard
4105 Reedy Creek Road �4 . MAC 112Q0$
Raleigh, NC 27607-6410
I DUO, u,; ..:
Subject: No -Exposure Certification NCGNE0382
NC National Guard -Durham
801 Stadium Drive, Durham, NC
Durham County
Dear Ms. Dudick:
The Division has reviewed your submittal of the No -Exposure Certification for Exclusion from NPDES
Stormwater Permitting form. Based on your submittal and signed certification of no exposure at the above
referenced facility, the Division is granting your conditional exclusion from permitting as provided for under 40
CFR 126.22(g), which is incorporated by reference in North Carolina regulations. We are also hereby
rescinding your current Certificate of Coverage NCG080542.
Please note that by our acceptance of your no -exposure certification, you are obligated to maintain no -
exposure conditions at your facility. If conditions change such that your facility can no longer qualify for a no -
exposure exclusion, you are obligated to immediately obtain NPDES permit coverage for your stormwater
discharge. Otherwise, the discharge becomes subject to enforcement as an un-permitted discharge. Your
conditional no -exposure exclusion expires in five years (February 28, 2013). At that time you must re -certify
with the Division, or obtain NPDES permit coverage for any stormwater discharges from your facility.
Your conditional exclusion from permitting does. not affect your facility's legal requirements to obtain
environmental permits that may be required under other federal, state, or local regulations or ordinances.
If you have any questions or need further information, please contact Sarah Young at [phone], ext.
502, or at [e-mail].
cc: Raleigh Regional Office -Ron Boone
Sincerely,
ORIGINAL SIGNED BY
KEN PICKLE
for Coleen H. Sullins
DWQ Central Files — wlattachments
Stormwater Permitting Unit Files Fran McPherson -Budget Office;,
NCGO80542 Permit File
WtMRA
N. C. Division of Water Quality 1617 Mail Service Center Raleigh, North Carolina 27699-1617 [phone] Customer Service
1-877-623-6748

Michael F. Easley, Governor
• / William G. Ross Jr., Secretary
North CarZina Department of Environment and Natural Resources
Alan W. Klimek, P.E.
Director
Division of Water Quality
Mr. Chuck Hill
Utility Division Manager
Durham County Engineering Department
120 East Parrish St., Suite 100
Durham, NC 27701
Dear Mr, Mill:
June 13, 2003
i
-r
Subject: General Permit No. NCG110000 - -
Triangle Wastewater Treatment Facility
COC NCG1 t0054
Durham County
In accordance with your application for a discharge permit received on March 11, 2003 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 May
9, 1994 (or as subsequently amended).
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 Aisha Lau at telephone number (919)
733-5083 ext. 578.
Sincerely,
ORIGINAL SIGNED BY
WILLIAM G. MILLS
Alan W. Klimek, P.E.
cc: Raleigh Regional Office
Central Files
Stormwater and General Permits Unit Files
N. C. Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699.1617 [phone]
AMA
ND
Customer Service
1 800 623-7748

y
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG110000
CERTIFICATE OF COVERAGE No. NCGI10054
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,
Durham County Engineering Department
is hereby authorized to discharge stormwater from a facility located at
Triangle Wastewater Treatment Facility
5926 Highway 55 East
Durham
Durham County
to receiving waters designated as Northeast Creek, a class WSIV NSW stream in the Cape Fear River Basin in
accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III, IV,
V and VI of General Permit No. NCG 110000 as attached.
This Certificate of Coverage shall become effective June 13, 2003.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day June 13, 2003.
ORIGINAL SIGNED BY
,• WiL LIAM C. MILLS
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

7
e
3 MsDos
4e—
VLZ
o
w1ro
ilb
.0
u.,
1997, Maptech,
fflg ava