NC0047384_Performance Annual Report_20190226

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GREENSBORO
NORTH CAROLINA
February 26, 2019
System Performance Annual Report Point Source Branch
North Carolina Division of Water Quality PERCS Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Dear PERCS Unit Representative:
I certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment for knowing violations.
If you have any questions or need additional information regarding this report, please contact
Steve Drew at 336-373-7893 or Martie Groome at 336-433-7229.
Sincerely,
isli-
0
Latoya H rris
Water Education Program Coordinator, Water Resources
Enclosure
PO BOX 3136 • GREENSBORO NC 27402-3136 • WWW.GREENSBORO-NC.GOV • 336-373-CITY (2489)
840
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•
CITY OF GREENSBORO
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WatrResourcs
GREENSBORO 2018 Sewage Collection & Water Reclamation Plant Report
WATER RESOURCES
46
NM I., ,,;1100, t The Clean Water Act of 1999 (House Bill 1160)
4 requires all entities that own or operate
wastewater collection and treatment systems
to make an annual report available to their
customers.The purpose of the report is to show
"r . how a system operates, how well it performed
I._ - during the year, what violations occurred, and
- - other important information.
�� This report is produced in compliance with
— -J these requirements and covers the calendar year
-` ° ell
January- December 2018. It is submitted to the
North Carolina Department of Environmental
3 — QY p
Quality.This re ort is available to all customers at
— local City of Greensboro library branches, 1
the Water Resources Customer Service Center
at 2602 S. Elm Eugene St. and online at
www.greensboro-nc.gov/WastewaterReport.
-_ l The names listed are professionals designated
"'' " .71-; ' Fi. by the State as the"Operators in Responsible
, :41-441!': \ . •'6 Charge"(ORC) of the respective systems:
,I.._.At
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T.Z. Osborne Water Reclamation Facility
}' k. Permit Number: NC0047384
\ •a ' . v4 ORC: BradleyFlynt, [phone]
yAil Y
- , , Sewage Collection System Permit
Number:WQCS00006
_ ORC: Robert Martin, [phone]
r:
l p,r••r,• 4 Contact Information
T.Z. Osborne Water Reclamation Facility
4rit . .A . [phone]
1 . l_ \
1, 0 www.greensboro-nc.gov/water
i f
1 To report sewer overflows, please
contact 336-373-2033

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t-.:tea. . 4147 -4414' .
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¢•ram , l__- r T.Z. Osborne Water Reclamation Facility
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t. ° VOLUME
f 56 II• Maximum designedcapacity o million
s or
-� 5 "\ gallons a day
a-«:. -_: '• , o i • Treated 12.9 billion gallons of wastewater
- in2018
System Overview -- ' Originally constructed in 1984 with several
." major upgrades.
The long history of water reclamation in Greensboro began with the construction of the original
4 million gallon per day (MGD) South Buffalo Creek Treatment Facility in 1928. Over the next ten
years, the North Buffalo Water Reclamation Facility opened to provide secondary treatment for
the northern half of Greensboro. By 1984, South Buffalo Creek Treatment Facility closed only to be
replaced by T.Z. Osborne Water Reclamation Facility.
Currently, the City of Greensboro Water Resources Department operates one water reclamation
plant and a sewage collection system that collects and transports sewage to this plant. The North
Buffalo Facility was decommissioned in October 2017. It is now a transfer pump station and all
wastewater is currently treated at the T.Z. Osborne facility.
The sewage collection and water reclamation system of the City of Greensboro begins with
approximately 99,797 connections that serve homes, commercial establishments, and industries.
Every day an average of 35.3 million gallons of sewage is generated in our homes and industries
that must be collected, transported, and treated to very stringent standards before it is released
back into the environment (in our streams).This service is provided by the City's Water Resources
Department and is funded almost entirely from the user charges that are paid monthly by our
customers.
The City of Greensboro operates a sewage collection system comprised of 1,418 miles of gravity
lines, 33,644 sewer manholes, 49 pump stations, and 70 miles of pressurized sewage force mains.
The system is subject to many federal and state rules and regulations designed to enforce the
provisions of the Clean Water Act. All spills and overflows, of any volume, that reach surface waters
must be reported to the State.The City of Greensboro notifies media any time a spill results in
1,000 gallons or more reaching surface waters.
2

I
Wastewater Treatment ..-
Plant Performance —' - —_
The City of Greensboro's wastewater treatment - m) n •'pi
itd� � ' ►hN Y
plant operates under a National Pollutant Discharge .111111101.AS �� —_
Elimination System (NPDES) Permit.This highly '' ili r •-'- ;�, ;- —
complex permit includes monitoring requirements _
and discharge limits.Thepermit can be viewedAr''' '
g t r ,_ r. i. M -
�' i s
at our treatment plant upon request. Compliance
with these permits requires our laboratory staff - 1 • System Improvements
to conduct over 60,000 tests per year.Wastewater <-... u..R
treatment plants have no control over some Water Resources is proud that given the
parameters, other than through regulating what capacity of our treatment plant and the
industry and households can discharge to the sewers age of our collection system, our permit
through the Industrial Waste and Pretreatment departures have been minimal. Recognizing
Program. the changing climate of environmental
concern, total compliance is our
During 2018 the Water Resources Department commitment to our customers.
treated almost 12.9 billion gallons of wastewater
and returned it to our streams.We are proud of In an effort to continue to improve our
the performance of these facilities made possible wastewater collection system and meet the
by the dedicated efforts of the professionals who demands of new regulations, various capital
operate, maintain and conduct tests for the plant. All improvement projects have been initiated.
NPDES permit violations are reported to the State of To prepare for State and Federal nutrient
North Carolina to ensure compliance with reporting reduction regulations and the Jordan Lake
regulations. A list of violations that occurred during Rules, upgrades to provide a higher level
the 2018 calendar year is at the end of this report of treatment at the T.Z. Osborne facility
(Table 1). are currently underway.This $115 million
four-phase construction project will be
The City of Greensboro's water reclamation facility completed in 2020.
is a tertiary treatment plant that utilizes activated
sludge processes. Solid waste (biosolids) generated Protecting the System
in these processes is disposed of by a fluidized bed Each year, the City of Greensboro evaluates
incinerator. the wastewater collection system and
�. 'lc prioritizes needs and resources.The system
%I t `� . �. \ .�'' : - t. is monitored and maintained daily with
�.'. N.Z - ,x-_,- ,�,.: ,_ ,, the implementation of both preventative
.„, and corrective maintenance measures. In
t .4,, . - addition, the City of Greensboro continually
4..K ;., ` w,s -�`� •
__' improves the system using an aggressive
program to rehabilitate old infrastructure
• tom: ,0,.
,, -. . ; �; - ,v that exhibit signs of deterioration.
-_ �- , .a,, �, `v Planning and making improvements to our
Iir��. -. , ... , ; %y wastewater collection system extends the
;a' ,,-. ; ' ,,.4
1 : '' life and operating efficiency of the City's
{ sewer system. 3

Summary of Collection
In 2018, there were 64 SanitarySewer Overflows (SSOs) in our communitywhich is an increase from
the 51 spills reported in 2017. SSOs occur when problems in the system cause sewage to emerge from
manhole covers, service cleanouts or plumbing fixtures.The major contributors to sewer overflows
include trash or debris, tree and shrub roots, grease, pump station equipment failure, and pipe failures
or breaks. Listed on the following pages are the compliance and violation records for T.Z. Osborne
treatment plant and the list of SSOs that exceeded 1,000 gallons.
The annual sewage and water reclamationplant report is available at the followingCity of Greensboro
g P
locations: the Vance H. Chavis Lifelong Learning Branch Library, the McGirt-Horton Branch Library, the
Central Library, the Melvin Municipal Office Building, the T.Z. Osborne Wastewater Facility, and also on
the City's website: www.greensboro-nc.gov/water.
Fats, Oils and Grease Program P
1.0
Grease that comes from cooking oils, gravy, lard or
shortening, and butter or margarine may not look
harmful as a liquid, but when they cool they get thick and 4
stick to pipes.
Cooking oil, fats, and grease that enter the sanitary Tips to Prevent Sanitary
system from household drains and poorly maintained Sewer Overflows
grease traps in restaurants and other food establishments • Place cooled oil and grease
can result in sanitary sewer overflows (SSOs). Sewer into trash bins or covered
overflows and backups can cause health hazards, damage
home interiors and threaten the environment. collection containers. Never
pour grease down the drain!
The City of Greensboro Water Resources Department • Scrape food scraps from
implements a Fats, Oils, and Grease (FOG) Policydesigned
p dishes into trash bins.
to educate and enforce proper disposal of FOG within the
community.The FOG policy educational and enforcement • Wipe off all fats, oils, grease
programs are intended for all customers (Food Service and food residue from dishes
Establishments, Nursing/Group homes, Schools/ and cookware into trash bins.
Cafeterias, Industries, and Residents) that discharge
wastewater into the City of Greensboro Sanitary Sewer • Use a strainer in the sink to
System with the aim of mitigating or eliminating SSOs collect excess food particles.
that are grease related.The City of Greensboro FOG policy
requires all commercial and food service establishments • Clean up grease spills with
to install and regularly maintain an appropriately sized absorbent material and place
grease trap or interceptor.
into trash bins.
To learn more,please visit www.greensboro-nc.gov 4

.- .1 .-, - I 1 - 1 1'i
2018 Wastewater Treatment Plant Compliance/Violations ti-i ; t(t_ _
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1,, �'r!- - i+s f— -, �'
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TABLE 1
T.Z. Osborne - Permit #NC0047384
MONTH I DESCRIPTION I TYPE OF VIOLATION
Fecal Coliform (9/16-9/23) Weekly Average
Carbonaceous Biochemical Oxygen Demand (9/16-9/23) WeeklyAverage
September y9 9
Total Suspended Solids (9/16-9/23) Weekly Average
Carbonaceous Biochemical Oxygen Demand (10/6-10/13) Weekly Average
October
Fecal Coliform (10/20-10/26) Weekly Average
Flow Monthly Average
November Carbonaceous Biochemical Oxygen Demand (11/11-11/17) Weekly Average
Total Suspended Solids (11/11-11/17) Weekly Average
December Flow Monthly Average
Note:The historical rainfall events during the last 4 months of the year,including 2 hurricanes,
impacted the treatment plant and collection system,causing violations.

2018 Wastewater Treatment Plant & Sewer Compliance/Violations
___ ---,—F, .
I/ ---------
TABLE 2 -
Sewage Collection System Permit #WQCS00006
Sewage Spills from Collection System Exceeding 1,000 Gallons
PERMITEE:CITY OF GREENSBORO
VOLUME
INCIDENT REACHING SURFACE WATER
STARTED SURFACE WATER NAME LOCATION PROBABLE CAUSE
3/3/2018 50,000 gallons North Buffalo 2401 Textile Drive Grease
3/22/2018 60,000 gallons North Buffalo 3000-A Northline Avenue Debris in Line
4/2/2018 5,500 gallons South Buffalo 200 E.Vandalia Road Grease
5/13/2018 1,800 gallons North Buffalo 1041 Battleground Avenue VCP Pipe&Rocks
5/14/2018 2,500 gallons South Buffalo 3200 Cypress Park Grease
5/17/2018 3,500 gallons South Buffalo 3845 MariBeau Woods Court Grease
5/21/2018 30,000 gallons South Buffalo 130 Sierra Drive Rags
6/18/2018 2,500 gallons South Buffalo 126Thornton Court Debris in Line
6/20/2018 3,000 gallons North Buffalo 500 Waycross Drive Roots
6/20/2018 335,000 gallons Little Alamance 6671 Judge Adams Road Other
8/3/2018 1,500 gallons N/A 6671 Judge Adams Road Contractor
8/7/2018 5,000 gallons South Buffalo 2306 Bracyridge Road Pipe Failure
9/6/2018 5,000 gallons South Buffalo 4124 Eastland Avenue Roots
9/16/2018 63,000 gallons North Buffalo 1600 West End Place Severe Natural Condition
9/17/2018 11,000 gallons North Buffalo 2199 White Street Severe Natural Condition
9/17/2018 625,000 gallons Horsepen Creek 3844 Battleground Avenue Severe Natural Condition
9/17/2018 1,300,000 gallons Middle Reedy Fork Creek 6951 McLeansville Road Severe Natural Condition
10/11/2018 3,000 gallons North Buffalo 3240 Gatesville Drive Inflow
10/11/2018 3,000 gallons North Buffalo 3240 Gatesville Drive Inflow
10/11/2018 2,500 gallons North Buffalo 2401 Lafayette Avenue Grease
10/11/2018 200,000 gallons Horse Pen Creek 3844 Battleground Avenue Inflow
10/11/2018 2,500 gallons North Buffalo 4105 Corbin Road Inflow
10/12/2018 1,200 gallons South Buffalo 612 Cardella Drive Inflow
10/12/2018 800,000 gallons Middle Reedy Fork Creek 6951 McLeansville Road Inflow
10/22/2018 3,000 gallons South Buffalo 2214 Crestridge Road Pipe Failure
11/12/2018 1,850 gallons North Buffalo Brightwood Lift Station Inflow
11/20/2018 2,000 gallons South Buffalo 3815 West Avenue Pipe Failure
12/18/2018 9,000 gallons Horsepen Creek Behind Bledsoe Lift Station Grease
13