NCG110048_COMPLETE FILE - HISTORICAL_20120821

STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
IV C& 1 1 b 04 R
DOC TYPE
HISTORICAL FILE
❑ MONITORING REPORTS
DOC DATE
❑ a o i a NFs ac
YYYYMMDD

North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, PE Dee Freeman
Governor Director Secretary
August 21, 2012
Mr. Ed Kerwin
Orange Water And Sewer Authority
400 Jones Ferry Rd
Carrboro, NC 27510
Subject: NPDES Compliance Inspection Report
Mason Farm WWTP
NPDES Permit No. NCO025241
NPDES Permit No. NCG110048
Orange County
Dear Mr. Kerwin:
The North Carolina Division of Water Quality conducted an inspection of the Orange Water And
Sewer Authority Wastewater Treatment Facility on July 13, 2012. This inspection was conducted
to verify that the facility is operating in compliance with the conditions and limitations specified in
NPDES Permit No. NCO025241.
A summary of the findings and comments noted during this inspection is provided on the attached
copy of the complete inspection report entitled "Water Compliance Inspection Report". There were
no significant issues or findings noted during this inspection and therefore, a response to this
inspection report is not required.
If you have any questions concerning this report, please contact me at 919-791-4255 in the Raleigh
Regional Office.
Sincerely,
� ,rs�i✓s-�c-i
A tumn Romanski
Environmental Program Consultant
Attachments
Cc: Mr. John M. Kiviniemi
400 Jones Ferry Rd
PO Box 366
Carrboro, NC 27510-0366
Mr. Todd Norman
400 Jones Ferry Rd
PO Box 366
Carrboro, NC 27510-0366
Raleigh Regional Office — File
DWQ/Raleigh — Central Files
DWQ/Raleigh-.Julie Gryzb, NPDES Complex Pcrmitting Unit
DWQ/Ralei��h —Wetlands, Buffers, Stormwater Compliance and Permitting Unit
\orsliC:arolina
�l rrlurrr!!>
North Carolina Division of Water Quality 1628 Mail Service Center Raleigh, NC 27699-1628 Phone [phone] Customer Service
Internet: www-ncwaterqual4y.org Location: 3800 Barrett Drive Raleigh, NC 27609 Fax {919) 788-7159 1-877-623-6748
An Equal OpporlunitylAffirmative Action Employer - 50% Recycled110 % Post Consumer Paper

Compliance Status-
® Compliant
Name and Signature of Inspectors:
1-kA,ezc -
A urn� Roma ski
Surface Water Protection Section
Raleigh Regional Office
❑ iVon-coinpliant ❑ Neither
ate
Page 2-1

Permit: NCG110048
SOC:
County: Orange
Region: Raleigh
Compliance Inspection Report
Effective: 06/01/08 Expiration: 05131IM3 Owner: Orange Water And Sewer Authority
Effective: Expiration: Facility: Mason Farm WWTP
170 Old Mason Farm Rd
Sr(nn ihtirkiel
Contact Person: Damen-Forney Title:
Directions to Facility:
System Classifications:
Primary ORC:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Chapel Hill NC 27514
Phone: [phone]
Ext.4352
Certification: Phone:
Inspection Date: 07/13/2012 Entry Time: 09:30 AM Exit Time: 02:00 PM
Primary Inspector: Autumn H Romanski p, f C� G Phone: [phone]
Secondary Inspector(s):
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Municipal WWTP > 1MGD, Stormwater Discharge, COG
Facility Status: ■ Compliant ❑ Not Compliant
Question Areas:
. Storm Water
(See attachment summary)
Page: 1

Permit: NCG110048 Owner - Facility: Orange Water And Sewer Authority
Inspection Date: 0711312012 Inspection Type: Compliance Evaluation Reason for Vislt: Routine
Inspection Summary:
The facility was compliant with the permit requirements the day of the inspection.
"It was recommended that the facility investigate whether the pipe from the old chlorine contact chambers is closed, such
that stormwater cannot discharge. If, it is discovered that the pipe is capable of discharging stormwater to Morgan Creek,
the outfall would need to be added to the stormwater permit and qualitative monitoring initiated immediately.
"Also we observed the biofilter during this inspection and request that the facility confirm non -discharge of biofilter
leachate and contact DWQ to determine appropriate permit requirements as applicable.
Page: 2

Permit: NCG110048 Owner -Facility. Orange water And Sewer Authority
Inspection Date: 0711312012 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?
■
❑
❑
0
# Does 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:
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: No vehicle maintenance is done on -site, so analytical monitoring is not
required.
However, the facility uses pumps to pump stormwater during heavy rains or flooding.
An in -line pH meter and chlorine check is conducted on discharge when stormwater
pumps are in operation.
Alarms have been installed here and a back-up generator is available to run the
stormwater pumps in event of loss of power.
Page: 3

0
Permit: NCG110048 Owner -Facility: Orange water And Sewer Authority
Inspection Date: 07/13/2012 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Permit and Outfalls Yes No NA NE
# Is a copy of the Permit and the Certificate of Coverage available at the site? ■ ❑ ❑ ❑
At Were all outfalls observed during the inspection? ❑ ❑ ■ Cl
# If the facility has representative outfall status, is it property documented by the division? ■ ❑ ❑ ❑
# Has the facility evaluated all illicit (non stormwater) discharges? ■ ❑ ❑ ❑
Comment: The facility has one main outfall at the SW pump station. SW Outfalls #2,
#3, #4, #5 were dry the day of the inspection, outfalls drain a combination of overland
flow, roof, building, and paved surfaces. SW Outfall #6 is located by the reclaim water
storage tank and was also dry the day of the inspection.
Secondary containment is drained to the intermediate pump station (back to the
treatment plant).
The facility closed the old chlorine contact chambers when the plant switched to UV
disinfection. The structure is collecting rain water that appears to flow to a pipe that
runs directly to Morgan Creek.
Please SEE SUMMARY for additional comment.
Page: 4

North Carolina
Beverly Eaves Perdue
Governor
November 8, 2010
Mr. Kenneth Keel, P.E.
Town of Hillsborough
101 East Orange Street
Hillsborough, NC 27278
Dear Mr. Keel:
`ram
NCDENR
Department of Environment and Natural Resources
Division of Water Quality
Coleen H. Sullins Dee Freeman
Director Secretary
Subject: NPDES Compliance Inspection Report
Hillsborough WWTP
NPDES Permit No. NCO026433
Stormwater Permit No. NCG110000
Orange County
The North Carolina Division of Water Quality(NCDWQ) conducted an inspection of the Town of
Hillsborough Wastewater Treatment Facility on July 9, 2010. This inspection was conducted to
verify that the facility is operating in compliance with the conditions and limitations specified in
NPDES Permit No. NCO026433 and NCGI 10000.
A summary of the findings and comments noted during these inspection(s) is provided on the attached
copies of the complete inspection report(s) entitled "Water Compliance Inspection Report''. There
were no significant issues or findings noted during this inspection(s) and therefore, a response to these
inspection report(s) is not required. . Please submit application for renewal of NCG 110000 to
the NCDWQ, if you have not already done so.
If you have any questions concerning this report, please contact me at 919-791-4247 in the Raleigh
Regional Office.
Sincerely,
Autumn Romanski
Senior Environmental Specialist
Attachments
Cc: Mr. Will Baker
Assistant Utility Director
PO Box 429
Hillsborough, NC 27278
Mr. Jeffery Mahagan
Operator in Responsible Charge
PO Box 429
Hillsborough, NC 27278

Raleigh -Regional Of�lice — File
DWQ/Raleigh — Central Files
DWQ/Raleigh — Stormwater Unit
Compliance Status of NC 0026433 and NCG I I0000:
® Compliant
Name and Signature of Inspector-
e
Auf'u`n Romanski
Surfa�e Water Protection Section
Raleigh Regional Office
❑ Non -compliant ❑ Neither
f!_'' _�2d7c;
Date
Page 2

Compliance Inspection Report
Permit: NCG110115 Effective: 12/08/08 Expiration: 05/31/13 Owner: Town of Hillsborough
SOC: Effective: Expiration: Facility: Town of Hillsborugh WVVfP
County: Orange 355 Elizabeth Brady Rd
Region: Raleigh
Hillsborough NC 27278
Contact Person: Jeff Mahagan Title: Phone: [phone]
Directions to Facility:
Take exit 165 off of Interstate 85 onto Highway 86 Travel North on Highway 86, across Highway 70A. This is Elizabeth Brady Road go
to the end.
SystemClassifications:
Primary ORC: Certification: Phone:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Inspection Date: 07/0912010 Entry Time: 09:30 AM Exit Time: 01:30 PM
Primary Inspector: Autumn H Romanshi Phone: [phone]
Secondary Inspector(s): � �_"/
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Municipal WWTP > 1 MGD, Stormwater Discharge, COC
Facility Status: ■ Compliant ❑ Not Compliant
Question Areas:
E Storm water
(See attachment summary)
Page: 1

�Ft
'�,L' 6 Iron S
Permit: N6S400466- Owner - Facility: Town of Hillsborough
Inspection Date: 07/09/2010 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
The facility was compliant with the requirements of the permit the day of the inspection.
Page: 2

v 31
wtr� l�lrS
Permit: Owner - Facility: Town of Hillsborough
Inspection Date: 07/09/2010 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?
■
Cl
Cl
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?
■
❑
Cl
❑
# 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: Currently updates and training records are kept on the computer, so a
recommendation was made to include a hardcopy of a dated, signed by the employee
training sheets, as well as, a hardcopy cover sheet signed and dated for annuall SPPP
updates.
Minutes or meeting notes when training is taking place should be included in the SPPP
binder for inspection.
More formal training is in the development stages for implementation next year.
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:
Page: 3

1� 11 f "
Permit: NG80004W Owner - Facility: Town of HPIsborough
Inspection date: 07/09/2010 Inspection Type: Compliance Evaluation
Permit and Outfalls
# Is a copy of the Permit and the Certificate of Coverage available at the site?
# Were all outfalls observed during the inspection?
# If the facility has representative outfall status, is it properly documented by the Division?
# Has the facility evaluated all illicit (non stormwater) discharges?
Comment: The facility has 5 Stormwater Outfalls that flow to the Eno River and all
were observed the day of the inspection.
outfall 001-by the Biosolids/Screenings
outfall 002-by screenings/first stage aeration
outfall 003-by plant entrance and tertitary filters
outfall 004-by disinfection
outfall 005- by biosolids mangement area
Some maintenance had been completed on outfalls since the last inspection.
New detailed inspection reports, and an updated site map were completed in 2010.
Reason for Visit: Routine
Yes No NA NE
Page: 4

NC®ENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
February 2, 2009
Mr. Ed Kerwin
Orange Water And Sewer Authority
PO Box 366
Carrboro, NC 27510
Subject: NPDES Compliance Inspection Report
Mason Farm WWTP
NPDES Permit No. NCO025241
NCG110000
Orange County
Dear Mr. Kerwin:
The North Carolina Division of Water Quality conducted an inspection of the Orange Water And
Sewer Authority Wastewater Treatment Facility on August 8, 2008. This inspection was conducted
to verify that the facility is operating in compliance with the conditions and limitations specified in
NPDES Permit No. NCO025241 and NCGI 10000.
A summary of the findings and comments noted during this inspection is provided in Section D on
Page 2 of the attached copy of the complete inspection report entitled "Water Compliance Inspection
Report". There were no significant issues or findings noted during this inspection and therefore, a
response to this inspection report is not required.
If you have any questions concerning this report, please contact me at 919-791-4247 in the Raleigh
Regional Office.
Sincerely,
luturrin Hoban
Environmental Senior Specialist
Attachments
Cc: Mr. Damon Forney
400 Jones Ferry Rd
PO Box 366
Carrboro, NC 27510-0366
Raleigh Regional Office — File
DWQ/Raleigh — Central Files
DWQ/Raleigh — Stormwater Unit
Ow
No hCarolma
ntura!!�
North Carolina Division of Water Quality 1628 Mail Service Center Raleigh, NC 27699-1628 Phone [phone] Customer Service
Internet: www-oewateraualitv.org Location: 3800 Barrett Drive Raleigh, NC 27609 Fax [phone]
An Equal Opportunity/Affirmative Acton Empfoyer- 5M Recycled110% Post Consumer Paper

rii�
Section D: Summary of Findings/Comments
(Attach additional sheets of narrative and checklists as necessary)
1. Permit:
Your NPDES Wastewater permit became effective March 1, 2007 and will not expire until July
31, 2011. The facility' is not currently under a Special Order by Consent.
The permittee is reminded to read, understand and comply with all of the terms and conditions
contained in the permit. If you have questions concerning your responsibilities, call the Raleigh
Regional Office to speak to a Division of Water Quality Surface Water staff member.
2. Compliance Schedules:
The permit does not have any outstanding compliance schedules for this facility.
3. Facility Site Review:
The overall condition of the plant site was satisfactory. The appearance of the facility was in
acceptable condition indicating that the current housekeeping practices are very good.
4. Self-MonitorinjZ Program:
You are reminded that your monitoring samples must be collected, preserved, and analyzed by
appropriate procedures and methods. You should maintain records of the sampler temperature,
and a certified laboratory must calibrate the sample thermometers annually.
Your operator is reminded that he/she must keep a logbook of all operation/maintenance
activities undertaken at the facility. The logbook should include all daily process control
activities including any field measurements conducted for process control. A visitation log for
the facility must also be maintained.
The facility is currently in compliance with these requirements.
5. Records/Reports:
a) A review of the daily monitoring data submitted during the previous 12-month period and a
review of the permit conditions indicates the facility was in compliance with the permit
requirements and/or limitations, however;
• Twos ills were reported in 2008 at the wastewater plant
■ 3/13/2008 — 125,000 gallons of partially treated wastewater over -flowed the RAS
Influent Channel due to alarm relay malfunction that has since been corrected
and a redundant system installed to prevent such a malfunction in the future.
■ 12/14/2008 — 10,000 gallons of partially treated wastewater over -flowed the
Influent Splitter Box due to equipment failure. Wet well pumps were placed in
hand mode and then placed in service, this caused a flow surge at the influent
splitter box. A new standard operating procedure was developed for hand mode
operations and staff has been trained so as to prevent such an occurrence in the
future.
The facility was issued no Penalty Assessment(s) and no Notice(s) of Violation for the 12-
month period.
Page 2-1

The permittee has paid the $9,123.79 in unpaid penalties reported on last years' inspection
as VWQ and the comission did not rant the remission request on this penalm The
permittee is reminded of his obligation to pay any penalties levied by the State of North
Carolina or non-compliance with your NPDES permit.
b) The facility must designate a certified Operator -in -Responsible -Charge (ORC) having a
certification level equal to. or greater than the facility classification. A Back-up ORC must
also be designated with a minimum certification level at least one level less than the facility
classification.
The facility is currently in compliance with these requirements. This facility is classed as
a Grade 4 (WW-4), the Operator in Responsible Charge (ORC) is Damon_Forney. He holds
a Wastewater Grade 4 (Cert. No. 991258), and the back up ORC. Mike Wolfgang, holds a
_Wastewater Grade 4 (Cert. No. 14114), and back up ORC Sonny Tchoi holds a Wastewater
Grade 4 (Cert, No. 22343). The ORC and operators of this facility do an excellent job.
The facility is currently in compliance with these requirements.
6. Laboratory:
For all analytical data submitted for compliance monitoring purposes, a certified Iaboratory
must be utilized for all laboratory analysis. Additionally, if field parameter testing is conducted,
an operator certified to perform the specified field parameter analysis is also required. The
operator needs to be sure to calibrate all meters/instrumentation before each use and retain all
calibration records.
Thefacility is currently in compliance with these requirements and utilizes the Mason Farms
_Wastewater Laboratory forsome Feld parameters and Tritest, Inc. certified commericial
laboratory #67.
7. Flow Measurement:
If the permit requires a flow measurement device for determining the effluent flow, the flow
measurement device must be calibrated annually.
This facility is required to monitor and report influent or effluent flow. They consistently resort
influent flow. A new influent flow meter was installed in 2007. The influent flowmeter has been
calibrated annually as required The effluent flow is monitored for process control purposes
only and is not reported on the DMR.
8. Effluent/Receiving Waters:
The effluent discharge should be clear with a continuous flow with no visible changes to the
receiving waters.
The e luent discharge was clear and flow was continuous. The receiving waters looked clear
with no visible changes from the e f fluenl clischarge.
9. Pretreatment:
This facilities influent stream consists of approx. 97.5% domestic and approx. 2.3% industrial
wastewater (maximum of 175,000 GPD of industrial wastewater). The facility receives
industrial wastewater from the UNC Cogeneration Facility. OWASA accepts this waste stream,
however, it was determined by the DWQ Pretreatment review that no p_retrealment by UNC is
Page 2-2

required because the facility does not meet the applicab& requirement of 40 CFR 423.10
which addresses discharges resulting from the operation of a generating _unit engaged in the
eneration of electricity for distribution and sale. UNC generates power�or the university only
and does not distribute or sell power. Since pretreatment is currently not required, ^it is
recommended that OWASA collect and analyze influent sample data, in particular, metals (total
recoverable) and low level Mercury. A review of the DMR data for 2007-2008 revealed ghat Cu
and Zn, should be monitored closely, -and that the industrial wastewater should be analyzed for
its contribution of the loadin og f Cu and Zn on the waste treatment plant. No more than 25% of
the loading of pollutants on the waste treatment plant -should come from the UNC Cogeneration
Plant industrial wastewater. The levels of hardness, total dissolved solids, other metals, such as
Nickel, Chromium, Mercury, Aluminum, and phenolic Compounds were reported in the 2008
annual monitoring and pollutant scan and indicated the presence of these pollutants after
treatment and downstream. The industrial wastewater discharger should not contribute levels
of pollutants that exceed 25% of the plants loading of pollutants to the wastewater plant. Il is
my understanding, that should the industrial discharger pollutant contribution exceed 25% of
the loading to the plant, a pre-treatment requirement for the industrial discharger would be
required.
Solids Hand fin /Dis Posal:
The facility must dispose of solids by an acceptable method such as a landfill or utilize the
services of an approved solids hauling and disposal contractor, which requires the facility to be
included under the contractor's non -discharge permit (i.e. land application). The facility is
reminded to maintain adequate records (i.e. shipment dates, quantities, etc.) of any solids
hauling and/or disposal activities.
The facility is in compliance with these requirements and utilizes OWASA SOLIDS HAULING
and Land Application, Permit No. 's W00001169 and WQ0021828.
10. Compliance Sampling:
Compliance sampling was not conducted during the inspection.
11. Operations & Maintenance:
The following items are noted:
a) The bridge to the plant was not accessible for some period cLtime during the Hannah Storm
Event that caused localized flooding in September 2008. It is recommended that an
emergencyemetgency response plan he in place or load events if you- do not alread have one in
1p ace.
b) Twos ills were reported during 2008. Thank you or the timgIZ re.porling and Ibr the
Hamner in which you responded with spill clean-yL) and corrective actions.
c) Please review the Metals DMR Data 2007-2008 tsummary graph is attached that shoivs the
elates in 2007 and 2008 that Zn and Cu readings reported on the DMR exceeded the Waler
Quality Action_ Level, Please determine if 25% or more of the loading_of Cu andlor Ais
attributed to the UNC Cogeneration industrial waste stream. See Pretreatment
Requirements in 9. above. CurrentIV_onlK monitorin is required for Cu and Zn in the
permit, results reported in the DMR for 2007-2008 could lead to the consideration of limits
for A and Cu.
Page 2-3

d) A stormwater inspection was conducted and the results are attached.
12. Compliance Status:
® Compliant
Name and Signature of Inspectors:
,/6/� 44;�_
Aufumn Hoban( '--
Surface Water Protection Section
Raleigh Regional Office
❑ Non -compliant ❑ Neither
Date
Page 2-4

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Page 1

Compliance Inspection Report
Permit: NCG110048 Effective: 06/01/08 Expiration: 05/31/13 Owner: Orange Water And Sewer Authority
SOC: Effective: Expiration: Facility: Mason Farm WWTP
County: Orange 100 Old Mason Farm Rd
Region: Raleigh
Chapel Hill NC 27514
Contact Person: Damon Forney Title: Phone: [phone]
Ext.4352
Directions to Facility:
System Classifications:
Primary ORC: Certification: Phone:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Inspection Date: 08/0812008 Entry Time: 07:3/0 AM Exit Time: 03:00 PM
Primary inspector: Autumn Hoban 1,Phone:
Secondary Inspector(s): r `� 1; � _
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Municipal WWTP > 1 MGD, Stormwater Discharge, COC
Facility Status: ■ Compliant ❑ Not Compliant
Question Areas:
0 Storm Water
(See attachment summary)
Page: 1

Permit: NCG110048 Owner - Facility: Orange Water And Sewer Authority
Inspection Date: 08/08/2008 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
The facility was conpliant with the NCG110000 permit requirements the day of the inspection.
Page: 2

Permit: NCG110048 Owner - Facility: Orange Water And Sewer Authority
Inspection Date: 08/08/2008 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: The facility has impiemeted the SWP3 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: No vehicle maintenance is done on -site.
This site has stormwater pumps that are utilized during heavy rains or flooding
There is an on-line pH meter and chlorine check conducted on the discharge when
stormwater pumps are in operation.
Alarms have been installed here and a back generator is available to run the Stormwater
pumps in the event of a loss of power.
Permit and Outfalls Yes No NA NE
# Is a copy of the Permit and the Certificate of Coverage available at the site? ■ ❑ ❑ ❑
Page: 3

Permit: NCG110048 Owner - Facility: Orange Water And Sewer Authority
Inspection Date: 08/08/2008 Inspection Type: Compliance Evaluation Reason for Visit: Routine
# Were all outfalls observed during the inspection? ■ 0 ❑ Q
# If the facility has representative outfall status, is it properly documented by the Division? ❑ ❑ ■ ❑
# Has the facility evaluated all illicit (non stormwater) discharges? ■ ❑ ❑ D
Comment: The facility has 1 main outfall at the SW pump station and 3 other outfalls
that are typically dry. .
There was one "contractor owned" diesel storage tank on -site that did not have a barrier
to protect it from vehicle traffic.
The septic hauler station had a spill kit and absorbent. All spills or overflow at this
location drain back to the influent pump station.
Bulk chemical and oil tanks were observed the day of the inspection and the facility was
compliant with the secondary containment requirements of the permit.
Page: 4

w A r�9p+✓
January 5, 2009
Mr. Kenneth Keel, P.E.
Town of Hillsborough
101 East Orange Street
Hillsborough, NC 27278
Dear Mr. Keel:
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
Subject: NPDES Compliance Inspection Report
Hillsborough WWTP
NPDES Permit No. NCO026433
Stormwater Permit No. NCG110000
Orange County
The North Carolina Division of Water Quality conducted an inspection of the Town of
Hillsborough Wastewater Treatment Facility on July 2, 2008. This inspection was conducted to
verify that the facility is operating in compliance with the conditions and limitations specified in
NPDES Permit No. NCO026433 and NCG 110000.
A summary of the findings and comments noted during this inspection is provided in Section D on
Page 2 of the attached copy of the complete inspection report entitled "Water Compliance Inspection
Report". There were no significant issues or findings noted during this inspection and therefore, a
response to this inspection report is not required. The NCO026433 permit expires January 31, 2013.
The NCGI I0000 permit expires October 1, 2010. Please submit application for renewal 180 days
prior to the permit expiration date.
If you have any questions concerning this report, please contact me at 919-791-4247 in the Raleigh
Regional Office.
Sincerely,
Autumn Hoban
Environmental Senior Specialist
Attachments
CC: Mr. Will Baker
Assistant Utility Director
PO Box 429
Hillsborough, NC 27278
Raleigh Regional Office — File
DWQ/Raleigh — Central Files
DWQ/Raleigh — Stormwater Unit
Mr. Jeffery Mahagan
Operator in Responsible Charge
PO Box 429
Hillsborough, NC 27278
Nt}M Caru!' a
. turrrl�
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1611 Phone [phone] Customer Service
Intemet: www ncwater ualit or Location: 512 N. Salisbury St. Raleigh, NC 27504 Fax [phone].623-6748
An Equal QpporiunitylAffirmative Action Employer- 50°% Recyciedll C% Post Censumer Paper

Permit: NCS000466
SOC:
County: Orange
Region: Raleigh
Compliance Inspection Report
;�007 30�0
Effective: 10/01/05 Expiration: 10/01/10 Owner: Town of Hillsborough
Effective: Expiration: Facility: Town Of Hillsborough
PO Box 429
Contact Person: Eric J Peterson
Directions to Facility:
System Classifications:
Primary ORC:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Title: Town Manager
Certification:
Hillsborough NC 27278
Phone: [phone]
Phone:
Inspection Date: 07102I2008 Entry Time: 09:00 AM Exit Time: 11:00 AM
Primary Inspector: Autumn Hoban ]�.. Phone:
Secondary Inspector(s):
Reason for Inspection: Routine
Permit Inspection Type: Stormwater Discharge, Individual
Facility Status: ■ Compliant ❑ Not Compliant
Question Areas:
E Storm Water
(See attachment summary)
Inspection Type: Compliance Evaluation
Page: 1

Permit: NCS000466 Owner - Facility: Town of Hillsborough
Inspection Date: 07/02/2008 Inspection Type: Compliance Evaluation Beason for Visit: Routine
Inspection Summary:
The \AWTP facility is in compliance with the NCG110000 permit conditions.
An inspection of the town's NCS000466 MS4 permit has not yet been conducted.
Page: 2

/VC 6 iia c
Permit: NCS000466 Owner - Facility: Town of Hillsborough
Inspection Date: 07/02/2008 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?
■
❑
Cl
❑
# Does the Plan include a list of significant spills occurring during the past 3 years?
■
Cl
❑
❑
# 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?
■
❑
Cl
❑
# 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 is the MS4 Permit Number for the Town of Hillsborough. The town
completed an internal MS4 inspection on 9/5/2007 and details are below.
Please note: The inspection entered here is for the NCG 110000 stormwater permit for
Hillsborough's WWTP.
Qualitative Monitoring Yes No NA NE
Has the facility conducted its Qualitative Monitoring semi-annually? ■ ❑ ❑ ❑
Comment: Town of Hillsborough conducted a phase II stormwater inspection on
9/5/2007 and the inspection noted minor issues, primarily stormdrains needed dirt/leaf
removal from inlets. This was done and a review of the screenings area was
completed. The NCS000466 Stormwater Permit was issued in 2005 and DWQ has not
yet inspected the Town's MS4 compliance. The NCG110000 permit was issued
recently and the site is compling with the permit requirements, not yet one year into the
permit.
Analytical Monitoring
Yes
No
NA NE
Has the facility conducted its Analytical monitoring?
❑
❑
■ ❑
# Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas?
❑
❑
■ ❑
Page: 3

Permit: NCS000466 owner - Facility: Town of Hillsborough
Inspection Date: 07/02/2008 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Comment: New permit, the facility should conduct a sampling event by July 2008, and
report the results to DWQ as required. If no rain events occur, or it is not possible to
sample during a drought, please forward a record to DWQ in lieu of analytical
monitoring results.
Permit and Outfalis
# 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: No water quality issues were observed at the outfalls.
Page: 4

I
Stormwater Inspection Summary Report
Town of Hillsborough - NPDES Phase II Program
Facility... W WTP
355 Elizabeth Brady Road
Inspection Date Inspection Type Inspector
9/5/2007 Initial Terry Hackett
Compliance Conditions...
This Site is NOT in Compliance'; Corrective Action Needed...Please see
Comments and Corrective Actions Below...
Comments
Minor issues, primarily storm drains need dirt/leaves removed from inlets; review
screenings area
Compliance Actions...
'4
r.
2.
RA
gemove dirt and debris from stor'mwater inlets near gate and
)iosolids area; fix erosional gullynear gate.
3roperly store gasoline cans or put in secondary containment to
eliminate possibly contacting stormwater.
3eview "screenings" area to determine how to protect from rainfall
)r develop procedure to do so.
Due Date
1013112007
Complete?
10131/2007
FM Complete?
�112007
I Complete?
Wednesday, September 05, 2007 Page I of I

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Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Caro epartment of Environment and Natural Resources
June 13, 2003
Mr. Ed Kerwin
Executive Director
Orange Water and Sewer Authority
P.O. Box 366
Carrboro, NC 27510
Subject: General Permit No. NCG110000
Alan W. Klimek, P.E.
r,,— yDirector
Division of.Water Quatity—
1 J Cn +� j
Ir ri TZ �
Mason Farm Wastewater Treatment Plant
COC NCG 110048
Orange County
Dear Mr. Kerwin.
In accordance with your application for a discharge permit received on March 10, 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.
Si 611fAL SIGNED BY
t IVVI'LLIAM 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]
Customer Service
1 800 623-7748

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG110000
CERTIFICATE OF COVERAGE No. NCG110048
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,
Orange Water and Sewer Authority
is hereby authorized to discharge stormwater from a facility located at
Mason Farm Wastewater Treatment Plant
100 Old Mason Farm Road
Chapel Hill
Orange County
to receiving waters designated as Morgan 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 1, II, 1I1, IV,
V and VI of General Permit No. NCGI 10000 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
WILLIAM 0. MILLS
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission