WQCS00038_Compliance Evaluation Inspection_20191107

ROY COOPER
Governor
MICHAEL S. REGAN
S� �rc�fart
LINDA CULPEPPER
NORTH CARo_IrtA
Environmental Quality
November 7, 2019
Stephanie Brixey, Deputy Director
Durham County Engineering & Environmental Services
5926 NC Hwy 55 East
Durham, NC 27701
Subject: Compliance Evaluation Inspection
Triangle Wastewater Treatment Plant Collection System
Permit No. WQCS00038
Durham County
Dear Ms. Brixey:
Mitch Hayes of the Division of Water Resources conducted the subject inspection on November
6, 2019. Your assistance and the assistance of Stephen Phillips, Les Shifflett, and Johnny Heard
were greatly appreciated. Please find attached to this letter the Basinwide Information
Management System (BIMS) checklist summarizing the inspection. Below is a list of findings
developed from the inspection:
1. The subject pen -nit was reissued and became effective September 7, 2016 and will expire
January 31, 2020. A permit rene"-al was received in our Central Office July 20, 2019 and
is currently under review.
2. The Technical Assistance and Certification Section has reclassified the collection system
as a Class — 3 effective November 1, 2019. BIMS lists Stephen Phillips as the Operator in
Responsible (ORC) with multiple back-up ORC's.
3. The Capital Improvement Plan projects through the years 2019 — 2030. Monies are
approved every two years. Some of the projects include raising manholes two feet above
the floodplain; evaluate the capacity of Page Point and Page Park pump stations; root
control; sewer lining and rehab; ominisite devices at all pump stations.
4. Mike Garver oversees the Sewer Use Ordinance and Fats Oil and Grease (FOG) program.
Inspections on restaurants are conducted twice a year. FOG materials are handed out to
apartment complexes when there is a sewer overflow caused by grease. FOG materials on
proper FOG disposal is available in the annual report.
5. Records review indicated the following:
a. Right of way mowing is contracted out to EC&M. Records are maintained
b. Total number of feet of gravity line is 582,000. For the year 2019, 14.6% of gravity
line was cleaned. Line cleaning is contracted out to Hydrostructures PA.
North Carolina Department of Environmental Quality Division of water Resources Raleigh Regional office
3800 Barrett Dove 1628 Mad Service Center: RaleiVh, North Card na 21699.1628

c. High priority lines are inspected once per every 6 months by Durham County staff.
Records are maintained.
d. Customer complaints are maintained on computer.
6. BIMS lists eight Sanitary Sewer Overflows (SSO's) for the review period July 2017-
Novenber 2019. Documentation of the SSO's and unreportable SSO's are being kept.
7. There arc 13 pump stations in the collection system. All stations have secured access,
contact information signage, audible visual alarms, on -site generators except the Page
Point pump which has a diesel punip, and ominisite based or telemetry system. Pump
stations inspected were Page Park, Keystone, Davis Drive, and Louis Steven. All audible
visual alarms functioned when the high-water float was lifted. The ominisite phoned in a
high water. The generator at Louis Stevens pump station did not operate when the power
was turned off. Stephen Phillips stated in an email on November 7, 2019, that the generator
was repaired and is functional, The other generators at the other pump stations operated
and ran under load when the poNver was turned off. Tile ominisite phoned in a power out
status. All pumps functioned when the proper float was lifted. Moderate grease was noted
in Page Park pump station wet well.
8. Aerial creek crossings off TW Alexander Drive, Dry Creek, National Driving and Training
Center were inspected. The National Driving and Training Center had concrete block piers
to support the DI creek crossing. The piers appeared straight, with no undermining. There
was no bank erosion. The other creek crossings had no piers, and rip."rap on both banks.
There was no bank erosion.
9. The outfall off TW Alexander Drive was inspected. Four manholes were inspected. Part
of this outfall was rehabilitated due to a past SSO due to bank erosion collapsing the gravity
line. The outfall was well maintained. There were no sink holes or depressions. All
manholes inspected were solid, with no evidence of cracking around the ring. There was
no build up solids in the invert.
1 would like to thank everyone involved with this inspection. If you have any questions concerning;
this letter or the inspection, please contact Mitch Hayes at 919.791.4261 or at
mitch.haves u_ticdenr.tiov.
Sincerely,
S. Ja Zit merman P.G., Chief
Water Quality Regional Operations Section
Raleigh Regional Office
Division of Water Resources, NC DEQ
cc: Permit files, Central files, PERCS Unit
North Carolina Department of Environmental Quakty , D vision of Water Resources
512 North Salisbury Street 1 1617 Mail Service Center I Ralf: gh. North Carol na 27699 1617
010 7n7 anon

Compliance Inspection Report
Permit: WOCS00038 Effective: 02/01/15 Expiration: 01/31/20 Owner: Durham County
SOC: Effective: Expiration: Facility: Durham County Collection System
County: Durham 5926 NC Hwy 55 E
Region: Raleigh
Durham NC 27713
Contact Person: Wendell Davis Title: Phone: [phone]
Directions to Facility:
System Classifications: CS3,
Primary ORC: Stephen Dail Phillips Certification: 989586 Phone: [phone]
Secondary ORC(s):
Johnny Anthony Heard 1006108 919-560-9033
On -Site Representative(s):
24 hour contact name Stephanie A Brixey 919-560-9034
On -site representative Stephen Dail Phillips 919494-5850
Related Permits:
NCO026051 Durham County - Triangle WWTP
WOCS00005 City of Durham - Durham Collection System
Inspection Date: 1110612019 Entry Time: 09 30AM Exit Time: 02 30PM
Primary Inspector: Mitchell 5 Hayes , ./ phone: [phone]
Secondary Inspector(s): t�
Reason for Inspection: Routine Inspection Type
Permit Inspection Type: Collection system management and operation
Facility Status: N Compliant ❑ Not Compliant
Question Areas:
. Miscellaneous Questions General
Capital Improvement Plan Map
Inspections Spill Response Plan
Lines Manholes
(See attachment summary)
Collection System Inspect Non Sampling
Sewer & FOG Ordinances
Reporting Requirements
Spills
Pump Stations
Page 1 of 7

permit: WQCS00038 Owner - Facility: Durham County
Inspection Date: 11106/2019 Inspection Type : Collection System Inspect Non Sampling Reason for Visit: Routine
Inspection Summary
The subject permit was reissued and became effective September 7, 2016 and will expire January 31, 2020. A permit
renewal was received in our Central Office July 20, 2019 and is currently under review.
The Technical Assistance and Certification Section has reclassified the collection system as a Class — 3 effective November
1, 2019. RIMS lists Stephen Phillips as the Operator in Responsible (ORC) with multiple back-up ORC's.
The Cap:tal Improvement Plan projects through the years 2019 — 2030. Monies are approved every two years. Some of the
projects include raising manholes two feet above the floodplain; evaluate the capacity of Page Point and Page Park pump
stations; root control; sewer lining and rehab; ominisite devices at all pump stations.
Mike Garver oversees the Sewer Use Ordinance and Fats Oil and Grease (FOG) program. Inspections on restaurants are
conducted twice a year. FOG materials are handed out to apartment complexes when there is a sewer overflow caused by
grease. FOG materials on proper FOG disposal is available in the annual report.
Records review indicated the following:
a.Right of way mowing is contracted out to EC&M. Records are maintained
b.Total number of feet of gravity line is 582,000, For the year 2019, 14.6% of gravity line was cleaned. Line cleaning is
contracted out to Hydrostructures PA.
c,High priority lines are inspected once per every 6 months by Durham County staff. Records are maintained.
d.Customer complaints are maintained on computer.
BIMS lists eight Sanitary Sewer Overflows (SSO's) for the review period July 2017-Novenber 2019. Documentation of the
SSO's and unreportable SSO's are being kept.
There are 13 pump stations in the collection system. All stations have secured access, contact information signage, audible
1 visual alarms, on -site generators except the Page Point pump which has a diesel pump. and ominisile based or telemetry
system. Pump stations inspected were Page Park, Keystone, Davis Drive, and Louis Steven. All audible I visual alarms
functioned when the high-water float was lifted. The ominisite phoned in a high water. The generator at Louis Stevens pump
station did not operate when the power was turned off. Stephen Phillips stated in an email on November 7, 2019, that the
generator was repaired and is functional. The other generators at the other pump stations operated and ran under load when
the power was turned off. The ominisite phoned in a power out status. Alt pumps functioned when the proper float was lifted.
Moderate grease was noted in Page Park pump station wet well.
Aerial creek crossings off TW Alexander Drive, Dry Creek. National Driving and Tra ning Center were inspected. The National
Driving and Training Center had concrete block piers to support the DI creek crossing The piers appeared straight, with no
undermining. There was no bank erosion, The other creek crossings had no piers. and rip/rap on both banks. There was no
bank erosion.
The outfall off TW Alexander Drive was inspected. Four manholes were inspected. Part of this outfall was rehabilitated due to
a past SSO due to bank erosion collapsing the gravity line. The outfall was well maintained. There were no sink holes or
depressions. All manholes inspected were solid, with no evidence of cracking around the ring. There was no build up solids
in the invert.
Page 2 of 7

Permit: WOCS00038 Owner - Facility: Durham County
Inspection Date: 111OW019 Inspection Type ; Cellrction System Inspect Non Sampling Reason for Visit: Routine
General
Yes No NA NE
Is there a properly des°gnated primary ORC and at least one back-up of proper grade? E ❑ ❑ ❑
Are logs being rev ewed by the system management or owner on a regular basis? M❑ ❑ El
# What is that frequency? weedy
# Are there any issues being addressed currently or any in the planning stages?
0 El El El
Is there a specific pump failure plan available for all pump stations?
0❑ ❑ Cl
Does plan ind cate f pump parts new pumps are in spare partslequipment inventory?
0❑ ❑ El
Are newlsigniricantly upgraded pump stations equ pped with anti -corrosion materials?
0 ❑ ❑ ❑
Does the permittee have a copy of the:.r permit?
■ ❑ 0 ❑
# Is permit exp ring within the next 6 months?
■ ❑ ❑
If Yes, has the Permittee applied for renewal?
■
Comment: Permit expires January 312020.
Sewer and FOG Ordinances
Yeses
Is Sewer Use Ordinance (SUO) or other Legal Authority ava table?
.
Does it appear that the Sewer Use Ordinance is enforced?
. El 1:1 El
Is there a Grease Control Program that legally requires grease Coritrcl devizes?
E ❑ 11 El
What is the standard grease trap cleaning requ rement in the FOG crdinanci2?
every 6 months or
less
Is Grease Control Program enforced via periodic inspections/records review?
. ❑ ❑ ❑
Is action taken against violators?
El El 11
# Have satellite systems adopted an equivalent or more stringent ordinance')
❑ E ❑
Is greaselsewer education program documented with req'd customer distnbul on?
❑
# Are other types of education tools used like websites, booths, special meetings. etc?
0 ❑ ❑
If Yes, what are they? (This can reduce mailing to annual,)
Annual Report contains language for proper grease disposal
Comment:
Capital Improvement Plan
Yes No NA NE
Has a Capital (CIP) or System Improvement Plan been developed and adopted?
Is it designated for wastewater only or does it have a dedicated section?
■
Does CIP cover three to five year period of earmarked improvements?
Does CIP include description of project area?
.
Does CIP include description of existing facilities?
■ ❑ El
Does CIP include known deficiencies?
Does CIP include forecasted future needs?
.
Comment: The Capital Improvement Plan projects through the years 2019 — 2030.
Page 3 of 7

Permit: MCS00078
owner - Facility: Durham County
Inspection Date: 1110612019
Inspection Type : Ccllection System Inspect Non Sampling Reason for Visit: Routine
IMaq
Yes No NA NE
Is there a overall sewer system map?
0 ❑ 110
Does the map include
Pipe Type (GSIFM)
M ❑ ❑ ❑
Pipe sizes
E ❑ ❑ ❑
Pipe materials (PVC, DIP, etc)
0 ❑ ❑ ❑
Pipe location
0 ❑ ❑ ❑
Flow direction
M ❑ ❑ ❑
Approximate pipe age E ❑ ❑ ❑
Pump station ID, location and capacity 0 ❑ ❑ ❑
# Force main air release valve location & type M ❑ ❑ ❑
# Location of satellite connections ®❑ ❑ ❑
Is the map being updated for changestadditions within 1 year of activation? 0 ❑ ❑ ❑
Comment:
Repotting Requirements Yes No NA NE
# Have there been any sewer spills in the past 3 years? M ❑ ❑ ❑
If Yes, were they reported to the Division if meeting the reportable criteria? M ❑ ❑ ❑
If applicable, is there documentation of press releases and public notices issued? 0 ❑ ❑ ❑
Is an Annual Wastewater Performance Report being filed with the Division, if required? 0 ❑ ❑ ❑
Is the report being made available to all its sewer customers? 0 ❑ ❑ ❑
# How is it being made available? on the web and
mailed,
Comment:
Inspections Yes No NA NE
Are adequate maintenance records maintained? ❑ ❑ ❑
Are pump stations being inspected at the required frequency? ❑ ❑ ❑
# Is at least one complete functionality test conducted weekly per pump station? 0 ❑ ❑ ❑
Is there a system or plan in place to observe the entire system annually? M ❑ ❑ ❑
Is the annual inspection documented? 0 ❑ ❑ ❑
# Does the system have any high -priority linesllocations? M ❑ ❑ ❑
Are inspections of HPL documented at least every 6 months? 0 ❑ ❑ ❑
Are new lines being added to the HPL list when found or created? M ❑ ❑ ❑
Comment:
Spill Response_ Action Plan Yes No NA NE
Is a Spill Response Action Plan available? 0 ❑ ❑ ❑
Is a Spill Response Action Plan available for all personnel? M ❑ ❑ ❑
Page 4 of 7

Permit: WQCS00038 Owner - Facility: Durham County
Inspection Date: 1110612019 Inspection Type • Collection System lnspe=t Non Sampling Reason for Visit: Routine
Does the plan include
24-hour contact numbers ■
Response lime ■ ❑ El ❑
Equipment list and spare parts inventory ■ 11 ❑
Cl
Access to cleaning equipment ■
Access to construction crews. contractors, and/or engineers
Source of emergency funds ■ ❑
Site sanitation and cleanup materials ■
11 El El
Post-overflow/spill assessment . ❑ ❑ ❑
Does the Permittee appear to respond within 2 hours of first kncwfedge of a spill? 0 ❑
Comment:
Yes No NA NE
Is system free of known points of bypass?
■ ❑ 0 El
If No, describe type of bypass and location
Are all spills or sewer related issues/complaints documented?
■
# Are there repeated overflows/problems (2 or more in 12 months) at same! location?
El 0 ❑ ❑
# If Yes, is there a corrective action plan?
■ ❑ ❑ 11
Comment: No repeated overflows in the same location
Lines/Right-of-Ways/Aerial Lines
Yes No NA NE
Please list the Lines/Right of Ways/Aerial tines Inspected
TW Alexander Drive, Dry Branch, National Driving 8 Training Center.
Are right-of-ways/easements maintained for full width for access by slaff/equipment? M ❑
If No, give'details on temporary access -
Is maintenance documented? .
Are gravity sewer cleaning records available? ■
El 1:1 El
Has at least 10% of lines older than 5 yrs been cleaned annually?
Were all areasllines inspected free of issues? ■
Comment: Total number of feet of -gravity line is 582.000. For the year 2019 14.6% of gravity line was
cleaned. Line cleaning is contracted out to Hydrostructures PA
Manholes
Yes No NA NE
Please list the Manholes Inspected
Four manholes along TW Alexander Drive oulfall
Are manholes accessible? E El El El
# Are manhole coverslvents above grade? ■ 0
00
Are manholes free of visible signs of overflow?
Are manholes free of sinkholes and depressions? ■
El El El
Page 5 of 7

permit: WQCS00038 Owner - Facility: Durham County
Inspection Date: 11/0612019 Inspection Type : Ccllecrion System Inspect Non Sampling
Reason for Visit: Routine
Are manhole covers present?
M ❑ El ❑
# Are manholes property seated?
M 0 El El
# Are manholes in good condition?
0
# Are inverts in good condition?
M El El Ej
Is flow unrestricted in manholes?
0 El El 0
Are manholes free of excessive amounts of grease?
M
Are manholes free of excessive roots?
M
Are manholes free of excessive sand?
M El El ❑
El El 0 ❑
Are manhole vents screened?
M
Are vents free of submergence?
Are manholes free of bypass structures or pipes?
Comment:
Pump Stations
Yes No NA NE
Please list the Pump Stations Inspected:
Page Park, Keystone, Davis Drive, Louis Stephens.
# Number of duplex or larger pump stations in system
13
# Number of vacuum stations in system
0
# Number of simplex pump stations in system
0
# Number of simplex pump stations in system serving more than one building
0
Hcw many pumplvacuum stations have
# A two-way "auto polling" communication system (SCADA) installed?
6
# A simple one-way telemetry/communication system (auto -dialer) installed?
7
For pump stations inspected
Are they secure with restricted access?
M ❑ 00
Were they free of by-pass structures/pipes?
0 ❑ ❑ El
Were wet wells free of excessive greaseldebris?
❑ M ❑
# Do they all have telemetry installed?
■ ❑ El ❑
Is the communication system functional?
M
Is a 24•hour notification sign posted ?
Does the sign include:
❑ ❑ 13
Ovmer Name?
Pump station identifier?
13 ❑ 11
# Address?
El El El
Instructions for notification?
24-hour emergency contact numbers?
■
Are audio and visual alarms present?
M 11 ❑
Page 6 of 7

Permit: WOCS00038 Owner - Facility: Durham County
Inspection Date: 11/06/2019 Inspection Type : Ceilectien System Inspect Non Sampling
Reason for Visit: Routme
Are audio and visual alarms operable?
■ ❑
# Is [here a backup generator or bypass pump connected?
0❑ ❑
If tested during inspection, did it function properly?
❑ . El 1:1
Is the back-up system tested at least bi-annually under normal operating conditions?
# Does it have a dedicated connection for a portable generator?
■11❑
# Is the owner relying on portable units in the event of a power outage?
0❑
# If Yes, is there a distribution plan?
■ Cl
If Yes, what resources (UnitslStaffNehiclesletc) are included in Plan?
# Does Permittee have the approved percentage of replacement simplex pumps?
0❑ El
Is recordkeeping of pump station inspection and maintenance program adequate?
a
Do pump station logs include at a minimum:
Inside and outside cleaning and debris removal?
❑
Inspecting and exercising all valves?
Inspecting and lubricating pumps and other equipment?
Inspecting alarms, telemetry and auxiliary equipment?
■
Comment: Moderate amount of grease in Page Park wet well. Generator at Louis Stephens
did not o erate
when tested. Stephen Phillips stated in an email on November 7 2019 that the generator was
repaired and is functional.
Page 7 of 7