NC0036277_Wastewater Performance Report_20170901

WASTEWATER
PERFORMANCE
REPORT
charlottewater.org @citwater /CharlotteWater CLTWaterBlog
4222 Westmont Dr. Charlotte, NC 28217
1 � i

I. General Information
Name of Regulated Entity and Responsible Person
City of Charlotte
Barry Gullet, Director
Charlotte Water (CLTWater)
Administration Division
4222 Westmont Drive
Charlotte, NC 28217
704-336-4407
Applicable Permits
RECEIVEMCDEWWR
SEP 01 2011
Water Quality
Permitting Section
There are seven wastewater treatment plants (WWTP) owned and operated by
Charlotte Water (CLTWater). Below is a list of these facilities and their applicable
NPDES (National Pollutant Discharge Elimination System) permit number. Included
with the list of facilities is the name of the Operator in Responsible Charge (ORC) at
the facilities and the site telephone numbers.
WWTP
NPDES Permit
Number
ORC
Phone
Irwin Creek WWTP
NCO024945
Michael Lingerfelt
704-336-2572
Mallard Creek WRF
NCO030210
Darrell DeWitt
704-547-0680
McAlpine Creek
NCO024970
Sandy Kim Neely
704-542-0736
WWMF
McDowell Creek
NCO036277
Joseph Lockler
704-875-6443
WWTP
Sugar Creek WWTP
NCO024937
William Allen
704-553-2124
Ashe Plantation
NCO065749
Jeremy Nance
704-634-3389
WWTP
Oxford Glen WWTP
NCO063584
Jeremy Nance
704-634-3389
In addition to those five plants, CLTWater sends wastewater to the Rocky River
Regional Wastewater Treatment Plant through an agreement with The Water and
Sewer Authority of Cabarrus County (WSACC). CLTWater also accepts flow from
Union County to McAlpine Creek WWMF.
Wastewater Performance Report August 2017

WW COLLECTION NCDWQ Permit Number ORC Phone
4100 W. Tyvola Rd. WQCS00001 Steven Wrobleski 704-432-2748
Description of collection and treatment systems
Charlotte Water (CLTWater) collects wastewater from approximately 298,651
households and businesses throughout the county. Wastewater is collected and
directed (via gravity flow supported by sewage lift stations) to one of seven
CLTWater wastewater treatment plants or the Rocky River Regional Plant (owned
and operated by the Water and Sewer Authority of Cabarrus County) where it is
treated. An average of 79 million gallons of wastewater is treated and discharged
each day from CLTWater plants. CLTWater contributes an average of 3.65 million
gallons a day (MGD) to the Rocky River Plant. CLTWater also treats roughly 1.74
million gallons (part of the 79 mgd from Union County at CLTWater's McAlpine
Creek Plant.
More than 300 of CLTWater's 912 employees work to maintain 4,288 miles of
collection pipelines and 82 wastewater lift stations throughout the county. The
gravity wastewater pipes in this system range in size from 8 inches in diameter to
78 inches in diameter.
Each of CLTWater's wastewater treatment plants applies primary, secondary and
advanced treatment to the waste stream. Large solid particles and inorganic
materials are removed by screening and settling. The wastewater is treated
biologically to remove dissolved pollutants. Disinfection reduces bacterial and
pathogenic materials. Finally, the waste stream passes through granular filters to
remove very small particles that may not have been removed through the settling
process. The treated water is released to the stream.
Wastewater Performance Report August 2017 2

1. Primary Treatment
Solid particles & objects are captured by screens, grit chambers, and primary
clarifiers.
2. Aeration/Secondary Treatment
Wastewater is aerated to support growth of microorganisms that remove
harmful pollutants.
3. Clarification
Solids and microorganisms settle out in large basins.
4. Advanced Treatment
Wastewater flows through granular filters to remove fine particles. Nutrient
levels are reduced at McDowell and McAlpine Creek Wastewater Treatment
Plants.
5. Disinfection
Water is disinfected to remove any remaining pathogens, and then the treated
water is released into creeks.
Wastewater Performance Report August 2017 3

II. Summary of System Performance
FY17 Performance
Charlotte Water successfully collected and treated 99.9995 percent of the more
than 28.7 billion gallons of wastewater the community produced in the past fiscal
year. There were 189 sanitary sewer overflows (SSOs) in our community, a decrease
of 35 spills compared to the year before. An estimated 124,265.5 gallons spilled.
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Yearly SSOs vs 5 -Year Moving A
Fiscal Year
tYearly SSOs t5 -Year Moving Average
The number of spills per 100 miles of pipe continued to decline from 10.8 in 2007
to 4.4 spills in fiscal year 2017 as illustrated by the table on page 5.
Wastewater Performance Report August 2017 4

NUrn ner OT 55Us/IUU miles vs 5 -Year Moving Average
Inspection crews and our customers find overflows. Overflows from the wastewater
collection system are discovered during routine inspections of the system and also
through reports from the public to 311. CLTWater notifies media any time a
sanitary sewer overflow results in 1,000 gallons or more reaching surface waters or
reach recreational waters. A legal notice is posted in the Charlotte Observer when
overflows of 15,000 gallons or more reach surface waters. Crews also use door
hangers to notify customers when appropriate, which is a permit requirement.
This annual report includes all incidents where wastewater escaped out of a
manhole or pipe before reaching proper treatment, including spills less than
required reporting thresholds (i.e. less than 1,000 gallons or any amount reaching
surface water). Private spills and sewer backups inside homes are not included. The
report summarizes spills (both reportable to the State and those escaping the
sewer) and other challenges at wastewater treatment plants.
CLTWater employees work 24 hours a day, 365 days per year, to prevent and
respond to overflows. Crews prevent overflows by clearing pipes of tree roots and
grease, as well as replacing broken and aging pipes. CLTWater has increased its
efforts to educate customers about properly disposing of fats, oils and grease
(FOG).
Wastewater Performance Report August 2017 5
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tSSOs/100 Miles
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Inspection crews and our customers find overflows. Overflows from the wastewater
collection system are discovered during routine inspections of the system and also
through reports from the public to 311. CLTWater notifies media any time a
sanitary sewer overflow results in 1,000 gallons or more reaching surface waters or
reach recreational waters. A legal notice is posted in the Charlotte Observer when
overflows of 15,000 gallons or more reach surface waters. Crews also use door
hangers to notify customers when appropriate, which is a permit requirement.
This annual report includes all incidents where wastewater escaped out of a
manhole or pipe before reaching proper treatment, including spills less than
required reporting thresholds (i.e. less than 1,000 gallons or any amount reaching
surface water). Private spills and sewer backups inside homes are not included. The
report summarizes spills (both reportable to the State and those escaping the
sewer) and other challenges at wastewater treatment plants.
CLTWater employees work 24 hours a day, 365 days per year, to prevent and
respond to overflows. Crews prevent overflows by clearing pipes of tree roots and
grease, as well as replacing broken and aging pipes. CLTWater has increased its
efforts to educate customers about properly disposing of fats, oils and grease
(FOG).
Wastewater Performance Report August 2017 5

Performance Highlights
• CLTWater celebrated some important milestones in FY2017 even as it took
numerous actions to prevent overflows and protect water quality through
effective wastewater treatment.
• Our wastewater treatment plants met 99.98 percent of all permitted discharge
limits.
• All five major wastewater treatment plants earned Peak Performance Awards
from the National Association of Clean Water Agencies (NACWA) for the calendar
year ending 2016. NACWA Peak Performance Awards recognize wastewater
treatment professionals throughout the nation for protecting the environment
and public health through outstanding treatment and discharge regulatory
compliance. McAlpine Creek Wastewater Treatment Plant was awarded its fifth
Platinum Award for nine consecutive years of perfect compliance. Sugar Creek
Wastewater Treatment Plant, Mallard Creek Water Reclamation Facility, and
McDowell Creek Wastewater Treatment Plant earned a Gold Award for zero
permit violations in a one year period. Irwin Creek Wastewater Treatment
earned the Silver Award for five or fewer violations in a one year period. Over
6,500 compliance tests were conducted during the 2016 calendar
year. CLTWater also recently purchased the Ashe Plantation and Oxford Glen
wastewater treatment plants in calendar 2016 and will be submitting NACWA
Award applications for these facilities next year.
• 15.75 miles of wastewater pipe and 287 manholes were rehabilitated or
replaced.
• 321 miles of wastewater pipe were treated with root control chemicals.
• 1088.9 miles of wastewater lines were cleaned (including some multiple
cleanings in the same location) by CLTWater Field Operations Staff and an
additional 143 miles of pipe were cleaned by contractors.
• 299 wastewater service connections were replaced.
• 106 miles of rights of way were cleared by contractors to maintain access to off-
street sanitary wastewater pipes and to help prevent root intrusions. 48.5 miles
were cleared by CLTWater staff.
• 327 miles of pipe were closed circuit television recorded (CCTV) for inspection by
CLTWater staff and contractors.
• There are 82 Wastewater Lift Stations serving the CLTWater service area. Staff
performed 162 preventative maintenance/electrical tasks for a total of 3426
work hours. This does not include daily/weekly station checks, wet well cleaning,
emergency generator testing, or emergency/routine repairs. In fiscal year 2017
Wastewater Performance Report August 2017 6

Charlotte Water accepted two (2) developer donated stations (Huntley Glen in
Pineville and Davidson Hall in Davidson). Also as part of the new Steele Creek
Lift Station project, currently being constructed, the Carolina Place Odor Control
Facility was placed into service. This will help address odor issues in the Pineville
area.
• Charlotte Water continues to replace the Steele Creek Pump Station and force
main that conveys community wastewater to the nearest wastewater treatment
plant in Pineville. This is an investment of $44 million. This project is 65%
complete.
• Construction of the Briar Creek Relief Sewer Project (Phase Three) began in 2016
and is 46% complete.
• Ayrsley Gravity Sewer Replacement Phase 2 will start construction in August
2017. This is a $2.5 million investment to serve the growing population in the
South Tryon 1-485 area.
• McAlpine Creek Wastewater Management Facility Plant and Potable/Non-
Potable Water System Reliability Improvements started in fiscal year 2017. This
is a $6.5 million investment.
• This year, Charlotte Water completed construction on a system at McAlpine
Creek Wastewater Treatment Plant that captures and converts methane gas (a
byproduct of wastewater treatment) into a fuel for electricity production and
useful heat. The Combined Heat and Power (CHP) system was an investment of
$4.6 million. A 20 year, zero -interest loan from the state's Clean Water State
Revolving Fund (a federal Clean Water Act program that's been in operation since the
late 1980's) financed the project. CLTWater is the first water/wastewater utility in
North Carolina to build a CHP facility.
FLOWFREE
• Charlotte Water started a fats, oil and grease reduction effort during the late
1990s to educate customers about food related clogs that lead to sanitary sewer
overflows. In 2017, Charlotte Water rebranded to FlowFree to focus on other
overflow contributors now that grease related spills continue to decline.
• City staff inspected grease -handling facilities at 4,193 food service
establishments and restaurants (not including follow-up inspections) to ensure
proper grease disposal.
• Staff issued 134 Notice of Deficiencies (NOD) of which 96 returned to
compliance and 38 are still under investigation.
• Staff issued five Notice of Violations (NOV).
Wastewater Performance Report August 2017

• In total, 24 grease traps were installed by businesses to fulfill NOD
requirements.
• The City continued its educational program to teach proper disposal of pipe -
blocking menaces.
• Between September and December 2016 CLTWater advertised new FlowFree
commercials. Below are the results of the advertising campaign:
o WBTV & Bounce TV Advertisements= 248 ads run - 83.7% reach (969,946
individuals according to Nielson TV Households Charlotte region population
of 1,168,610)
o Time Warner Cable TV Advertisements= 1,599 ads - 35.8% reach (418,362
individuals) 5.5 times frequency 463.6
o Pay -Per -Click = 165 unique visits
o Banner Ads = 1,017 unique visits, 241,033 impressions
o YouTube Pre Roll = 58,668 Unique Visits, 241,033 impressions
o Digital Television = 37,483 unique visits, 171,000 impressions
• Inspectors mailed information to 734 customers near spill sites and handed out
information to 1,246 customers in apartments / multi -family complexes.
• Staff conducted presentations to more than 1,046 children and adults. Multiple
Earth Day events also provided opportunities to distribute FlowFree scrapers,
pens and other items.
• CLTWater continues to use door -hangers specifically for maintenance personnel
or property managers of apartment or multi -family complexes. This reinforces
best management practices for prevention.
• Staff continues to provide bilingual door hangers and promotional items for
property managers to give to new residents.
Continuing Challenges
Wastewater Collection Challenges
The greatest continuing wastewater challenge in this community - and in others
across the U.S. - is sewage overflows. Of the 189 sewer spills that occurred, grease
(fats, oils, grease, and other food leftovers) accounted for most of the sanitary
Wastewater Performance Report August 2017 8

sewer overflows. While still the leading cause of overflows, grease was less than
50% for the fifth straight year. Grease has traditionally been the primary cause of
50-60% of spills. Other spill causes included the infiltration of tree roots into pipes,
broken pipes, debris, and vandalism. Disposable wipes are also a growing cause of
sewer spills.
Pipe Failur
14.8%
DE
1�
FY 2017 Overflows by Primary Cause
Vandalism
nthar 4.2%
free hoots
25.4%
ise
Grease and other blockages that lead to sewer overflows are cleared by CLTWater
crews, using various cleaning methods, including mechanical rodders and truck-
mounted waterjets. If damaged pipe or other infrastructure is discovered it is
repaired. The spilled wastewater can sometimes be captured and pumped back
into the sewer system.
CLTWater Rapid Response Crews are quick to respond when notified of a possible
spill. Crews responded to more than 91.5 percent of the spills within 60 minutes
and 100 percent of the spills within 120 minutes. The average for all response was
29 minutes. The state standard for response is 120 minutes or less.
Wastewater Performance Report August 2017 9

Wastewater Treatment Plant Challenges
Charlotte Water's wastewater treatment plants met 99.98 percent of all discharge
limit tests set forth by our NPDES permits but our commitment is 100 percent
compliance. Staff continues to improve maintenance capabilities and overall
performance. Major rehabilitation and improvement projects help maintain
compliance. Future upgrades and expansions are being added.
CLTWater had one permit violation in FY17. A fecal coliform violation occurred at
Oxford Glenn WWTP on August 24, 2016. CLTWater had a fecal coliform result of
470 cfu/100ml. This exceeded our daily maximum limit of 400 cfu/100ml. An
additional sample was collected after being notified of the exceedance and the
result was 3 cfu/100ml. Please note that this limit of 400 cfu/100ml, as a daily
maximum, is more stringent than the current water quality standard. CLTWater
recent acquired this facility and has also just completed a NPDES permit renewal
for this facility. Our new limit as a result of the permit renewal is 400 cfu/100ml as
a weekly average. Charlotte Water's results from the week of August 22, 2016
would have been in compliance with our current limit of 400 cfu/100ml as a weekly
average. Permit details are available at bottom of report.
There were two (2) incidents where water was released into the creek due to a
power outage (20,730 gallons) and a valve failure (5,700 gallons). These were mostly
treated wastewater that didn't complete full treatment. These are not violations. In
both situations, operators quickly found and fixed the problem and notified North
Carolina Department of Environmental Resources. After the initial response was
complete, staff evaluated potential causes and solutions for each incident. Quick
solutions were implemented and more in-depth / extensive solutions are identified
as capital needs. No dead fish were found associated with these bypasses. The 26,
430 gallons that did not receive full treatment was significantly less than one
percent (1 %) of the 79 million gallons of water that is treated and safely returned to
area creeks every day.
CLTWater System Protection operates within CLTWater's' service area to enforce
federal, state, and local regulations pertaining to discharges to the sanitary sewer,
including protection of workers and treatment processes from pollutants harmful
to people or the environment. System Protection includes the Industrial
Pretreatment Program and the Commercial Source Program.
The Pretreatment Program identifies, permits, and regulates Industrial Users and
others to keep unsuitable discharges out of the wastewater treatment plants. The
Wastewater Performance Report August 2017 10

Commercial Source Program, also referred to as Flow Free, inspects and regulates
Commercial Users, such as food service establishments, to keep unsuitable
discharges such as fats oils and grease out of the collection system and wastewater
treatment plants.
While industrial and commercial compliance is extremely high, identifying sources
of potentially harmful discharges is an ongoing challenge. In fiscal year 2017, the
Trunkline Monitoring program -also continued, enabling CLTWater's System
Protection and Water Quality staff to closely observe what industrial, institutional,
and commercial customers discharge to the wastewater treatment plants, identify
potential problem areas, and protect the collection system, wastewater line
workers, treatment plants and the environment.
There were over 200 annual industrial inspections and site visits in the past
fiscal year.
• As part of the industrial pretreatement program, food service
establishments and other grease producing businesses are identified and
inspected on an annual basis.
• CLTWater honored 29 local companies with Environmental Excellence
Awards for FYI including:
Four Platinum recipients for at least five consecutive years of Gold level
compliance and reporting
Seventeen Gold recipients for 100% compliance with permit limits and
reporting, and
• Eight Silver recipients for 90% compliance with permit limits and 100%
compliance with reporting
• CLTWater issued 233 industrial permit limit violations to Significant
Industrial Users (SIU), which resulted in a Notice of Violation, Notice of Non -
Compliance, Administrative Order, or similar assessments given to Significant
Industrial Users in the past fiscal year.
• 23 Notices of Violation with Civil or Criminal penalties were assessed to
users during the fiscal year for permit limit exceedances and other violations.
Union County Wastewater Treatment Agreement
Charlotte Water has an inter -local agreement with Union County that began in 2014
to provide contracted operation and maintenance of five Union County wastewater
plants. Union County will continue to own the wastewater treatment plants, own
Wastewater Performance Report August 2017 11

and operate the wastewater collection system (separate from the wastewater
treatment plants), set rates, and collect user fees for their customers.
Illegal Dumping Incident
In fiscal year 2017, decontamination efforts of the Mallard Creek Wastewater
Treatment Plant after the illegal PCB dumping event that occurred February 2014
continued. Charlotte Water staff worked with regulators and peers to design and
implement decontamination plans that contribute to an industry standard for these
types of treatment plant impacts. Currently Mallard Creek is in the final phase of a
four phase process. The decontamination phase project includes training staff,
procuring new equipment/parts, financial tracking, and creating project data
tracking. The decontamination efforts at Mallard Creek will be completed August
2017. The total cost of the decontamination of the plant and equipment reached
close to $15 million. Further activity will take place at the McAlpine Wastewater
Management Facility beginning this fall.
Although this event marked one of the worst contamination events in the utility's
history, customers were never impacted mostly due to the staff's quick response
during the event and Charlotte Water's strong commitment to protecting the
environment.
Wastewater Capacity Needs
In 2007 a study of the McAlpine, Irwin and Sugar creek basins was completed to
help identify our community's future wastewater treatment capacity needs through
the year 2030. Recommendations from the study have resulted in the
implementation of extensive reliability improvements projects at the Irwin, Sugar,
and McAlpine Wastewater Treatment Plants. There are also studies for Mallard and
McDowell Creek basins that are near completion.
In recent years CLTWater, Mount Holly, and Belmont entered into Memorandums
of Understanding to create the partnership needed for a new, regional wastewater
plant. CLTWater purchased 180 acres of land at a former Clariant industrial plant
site along with the phosphorus and nitrogen discharge permit allocation associated
with the industrial plant. The agreements and nutrient allocation purchase will
facilitate compliance with the Lake Wylie nutrient TMDL while planning and
construction of the regional plant progresses. An Environmental Impact Statement
was completed with N.C. DEQ in March 2015. CLTWater submitted the NPDES
Wastewater Performance Report August 2017 12

permit application for the new regional facility, which will treat about 12 mgd with a
possible expansion to 25 mgd at a future date if necessary. We are in process of
completing preliminary engineering report.
A Central Business District (CBD) Sanitary Sewer Modeling and Evaluation project
was completed that included the CBD and surrounding areas and their projected
growth out to 2040. This project provided an updated sanitary sewer model for
assessing future development and their associated service connections. The
evaluation portion identified improvement alternatives to meet future capacity of
the CBD and developed a phased implementation plan considering capacity
improvement triggers. Currently, there were two immediate pipeline needs
identified, and those projects are moving toward design and installation.
CLTWater's Capacity Assurance Program (CAP) was implemented on January 1,
2009. CAP helps CLTWater prevent sanitary sewer overflows (SSOs) that could be
caused by adding too many customers' wastewater flow to an existing pipe.
Developers are encouraged to apply for a CAP review during the early stages of
requesting building permits or rezoning. This review process is performed at no
cost to the applicant. Engineers analyze hydraulic models, past spills in the area and
other field data to verify that there is adequate capacity in the pipes downstream. If
no major sewer capacity limitations are found during the review, applications are
generally approved in 30 days. Some reviews lead to identification of capital
pipeline projects to improve the service level to our current customers as well as
accommodate projected development.
Some project examples identified from the CAP reviews include:
• Ayrsley Gravity Sewer Replacement Phase 2 will start construction in August
2017. This is a $2.5 million investment to serve the growing population in the
South Tryon 1-485 area.
Doby Creek Sanitary Sewer Improvements is anticipated to be an $11 million
project with a completion in early 2019. These improvements are in the
University City Blvd / 1-85 area.
• Wilmore Drive/ Park Avenue Sanitary Sewer Replacement is anticipated to
start construction in January 2018. These projects are expected to finish by end
of 3rd quarter 2019 at an estimated cost of $5M.
• Irvins Creek Tributary Trunk Line (Lawyers Rd area) is estimated at $2.25
million with a notice to proceed in January 2018 and an anticipated completion
of 2nd quarter 2019.
Wastewater Performance Report August 2017 13

Little Sugar Creek Tributary Trunk Sewer (North Tryon area) will proceed in
January 2018 at an estimated cost of $6 million. Anticipated completion of end
of 3rd quarter 2019.
III. Notification
Sanitary sewer overflow and wastewater treatment plant details are included in
Sections V and VI.
This report is available to the users or customers of this system by visiting
http://charlottewater.org. Printed copies are available at the Charlotte -Mecklenburg
Government Center at 600 E. Fourth Street, Charlotte, NC 28202, Charlotte Water
buildings at 4222 Westmont Drive, Charlotte, NC 28217 and at 5100 Brookshire
Boulevard, Charlotte, NC 28216. Customers of this system will receive a summary
version of this report and will be notified of the availability of this comprehensive
version via a bill insert in the September water bill. A news release will be issued to
local media outlets. In addition, the summary version will be translated into Spanish
and advertised during the month of September in a regional Spanish-speaking
newspaper. The Spanish version will also be on the Charlotte Water website.
IV. Certification
I certify under penalty of law that this report is complete and accurate to the best of
my knowledge. I further certify that this report has been made available to the
users or customers of the named system and that those users have been notified
of its availability.
Charlotte
g- zT, -
Date
Wastewater Performance Report August 2017 14

V. Listing of Sewer Spills
The following is a list of spills (in gallons) from the public wastewater system that occurred between July 1, 2016 and
June 30, 2017.
Date
Volume
(Gallons)
Volume to
Surface
Water
Surface Water
Name
Fish Kill?
Address
Primary Cause
07/04/16
174
174
Little Sugar
Creek
No
2505 Robin Hill Dr
Grease
07/05/16
95
0
Little Hope Creek
No
1043 Keystone Ct
Roots
07/06/16
17
0
McAlpine Creek
No
8824 E W T Harris By
Grease
07/12/16
1540
1540
McAlpine Creek
No
9838 Albemarle Rd
Roots
07/14/16
79
0
Briar Creek
No
3014 Airlie St
Roots
07/14/16
318
159
Clems Branch
No
16035 Johnston Rd
Grease
07/15/16
855
855
McMullen Creek
No
2432 Cloister Dr
Debris In Line
07/15/16
210
0
McAlpine
No
7025 Spring Morning Ln
Roots
07/18/16
900
900
Campbell Creek
No
3205 Winchelsea Dr
Grease
07/20/16
77
0
Mallard Creek
No
3505 Mayspring PI
Grease
07/20/16
150
0
Little Hope Creek
No
1043 Keystone Ct
Roots
07/22/16
1550
1300
Paw Creek
No
1807 Sloan Dr
Grease
07/25/16
540
0
Briar Creek
No
6436 Dale Av
Grease
08/02/16
780
780
McMullen Creek
No
9243 Covey Hollow Ct
Pipe Failure
08/03/16
492
0
Taggart Creek
No
3101 Stafford Dr
Roots
08/09/16
100
0
Little Sugar
Creek
No
230 N College St
Grease
08/12/16
1350
1350
Little Hope Creek
No
4746 Old Woods Rd
Pipe Failure
08/14/16
82
82
McAlpine Creek
No
3411 Burkland Dr
Grease
Wastewater Performance Report August 2017 15

08/17/16
1640
0
Stewart Creek
No
621 Pennsylvania Av
Grease
08/18/16
73
0
McMullen Creek
No
5012 Carmel Rd
Roots
08/19/16
388
388
McMullen Creek
No
4518 Water Oak Rd
Pipe Failure
08/22/16
714
714
Little Sugar
Creek
No
1807 Montford Dr
Grease
08/23/16
60
0
Goose Creek
No
13324 Castleford Dr (Mint
Hill)
Vandalism
08/26/16
1620
810
Dixon Branch
No
8510 Prosser Wy
Grease
08/26/16
80
80
Briar Creek
No
1515 Morningside Dr
Roots
08/27/16
200
0
Irwin Creek
No
1501 Kimberly Rd
Roots
08/29/16
275
0
Sugar Creek
No
4100 W Tyvola Rd
Debris In Line
09/05/16
198
198
Big Sugar Creek
No
119 Marine Dr (Pineville)
Pipe Failure
09/05/16
104
0
Paw Creek
No
1035 Tilden Rd
Roots
09/06/16
244
0
McAlpine Creek
No
10304 Mina Ct
Debris In Line
09/08/16
609
0
McDowell Creek
No
8920 Pinnacle Cross Dr
(Huntersville)
Debris In Line
09/09/16
147
110
Campbell Creek
No
5650 Albemarle Rd
Grease
09/12/16
460
460
Little Hope Creek
No
4820 South By
Debris In Line
09/15/16
425
425
Little Hope Creek
No
4821 South By
Pipe Failure
09/16/16
24
0
Four Mile Creek
No
9428 Four Mile Creek Rd
Grease
09/18/16
780
780
Paw Creek
No
6742 Wild Turkey Ln
Pipe Failure
09/19/16
570
0
Little Sugar
Creek
No
1001 Blythe By
Grease
09/19/16
212
0
Little Sugar
Creek
No
712 Morrow Av (Pineville)
Roots
09/24/16
450
0
Irwin Creek
No
2824 Allen Rd S
Grease
09/29/16
264
264
McMullen Creek
No
8324 Woodgate Ln
Grease
Wastewater Performance Report August 2017 16

Wastewater Perfonnance Report August 2017 17
13928 Ballantyne Meadows
10/02/16
440
440
McAlpine Creek
No
Grease
Dr
10/03/16
3795
3795
Irwin Creek
No
533 Chicago Av
Pipe Failure
18907 North Beatties FordOther
10/04/16
400
400
Lake Norman
No
Rd (Cornelius)
10/07/16
20
0
McAlpine Creek
No
4612 Shadycroft Cr
Pipe Failure
10/09/16
150
100
Irwin Creek
No
2624 Montreat St
Grease
10/10/16
65
65
Four Mile Creek
No
6014 Lake Providence Ln
Roots
10/14/16
91
0
Mallard Creek
No
5012 Eagle Creek Dr
Grease
10/15/16
700
700
McAlpine Creek
No
3419 Arrow Ln
Grease
10/18/16
160
0
Sugar Creek
No
4601 Charlotte Park Dr
Roots
10/25/16
290
290
Briar Creek
No
5116 Auburndale Rd
Grease
10/28/16
55
0
McMullen Creek
No
847 Shady Bluff Dr
Debris In Line
Steele Creek
10/30/16
1270
350
No
14109 Williams Glenn Rd
Vandalism
Tributary
Little Sugar
10/30/16
535
535
No
1305 S College St
Pipe Failure
Creek
Little Sugar
11/03/16
295
295
No
6510 Candlewood Dr
Grease
Creek
11/04/16
250
250
McMullen Creek
No
901 Shady Bluff Dr
Roots
11/05/16
165
165
Briar Creek
No
415 Eastover Rd
Roots
Little Sugar
11/06/16
65
0
No
1314 S College St
Pipe Failure
Creek
11809 Hambright Rd
11/9/16
630
630
Torrence Creek
No
Pipe Failure
(Huntersville)
Mountain Island
11/9/16
39
0
No
1833 Mountain Trail Dr
Other
Lake
Wastewater Perfonnance Report August 2017 17

11/13/16
96
0
McAlpine Creek
No
7801 Meadowview Ln
Roots
1/7/17
3210
2500
Mountain Island
No
901 Doby Springs Dr
Vandalism
11/14/16
30
0
No
2732 Mt Isle Harbor Dr
Other
La ke
11/21/16
340
340
Briar Creek
No
102 Wrenwood Ln
Roots
Little Sugar
11/21/16
351
351
No
1144 Dilworth Crescent Rd
Debris In Line
Creek
Little Sugar
11/23/16
180
0
No
911 E Morehead St
Grease
Creek
12/2/16
87
0
Irwin Creek
No
3921 Nevin Rd
Vandalism
12/4/16
540
0
Reedy Creek
No
11601 Calgary Dr
Roots
12/5/16
640
640
McIntyre Creek
No
9016 Feldbank Dr
Debris In Line
Little Sugar
12/7/16
400
400
No
416 Queens Rd
Grease
Creek
Little Sugar
12/7/16
1900
1900
No
1132 Queens Rd W, 28207
Roots
Creek
12/14/16
770
770
Big Sugar Creek
No
1919 Bangor Rd
Roots
12/18/16
435
435
Stewart Creek
No
4156 Canyon Creek Ln
Grease
12/21/16
298
0
Doby Creek
No
1000 Louis Rose PI
Roots
16016 Loch Raven Rd
12/21/16
73
73
Cane Creek
No
Debris In Line
(Huntersville)
Little Sugar
12/22/16
2980
2980
No
7547 Starvalley Dr
Grease
Creek
12/26/16
77
0
McAlpine Creek
No
7000 Bevington Hollow Cr
Roots
12/26/16
87
0
McAlpine Creek
No
4321 Bathurst Dr
Roots
12/27/16
600
0
McAlpine Creek
No
6118 Fair Valley Dr
Pipe Failure
1/4/17
540
540
Briar Creek
No
5001 Delivau Dr
Other
1/7/17
3210
2500
Doby Creek
No
901 Doby Springs Dr
Vandalism
Wastewater Performance Report August 2017 18

Wastewater Performance Report August 2017 19
965
965
Mountain Island
No
2532 Highworth Ln
Other
1/10/17
Lake
1/11/17
76
0
McAlpine Creek
No
9232 Clifton Meadow Dr
Grease
1/13/17
595
595
Steele Creek
No
12804 Lismorre Castle Ct
Grease
1/16/17
234
234
Kings Branch
No
638 Archdale Dr
Grease
1/16/17
150
0
Sugar Creek
No
7504 Axis Court Zone 4
Grease
310
0
Lower Little
No
3917 Flowerfield Rd
Roots
1/16/17
Sugar Creek
1/17/17
30
0
Steele Creek
No
9200 Stockport PI
Grease
87
0
Lake Norman
No
18427 Peninsula Cove Ln
Pipe Failure
1/18/17
(Cornelius)
1/18/17
910
910
McAlpine Creek
No
6225 Glenridge Rd
Roots
1/18/17
300
0
Sugar Creek
No
530 Doughton Ln
Grease
25
0
Lower Little
No
8840 Sharonbrook Dr
Debris In Line
1/19/17
Sugar Creek
1/19/17
325
325
Briar Creek
No
1411 Hawthorne Ln Lot 407
Pipe Failure
212.5
0
McAlpine Creek
No
131 Matthews Station St
Grease
1/20/17
(Matthews)
1/21/17
660
500
Sugar Creek
No
6108 Coolbrook Ct
Grease
1/25/17
410
410
Long Creek
No
8846 Chalkstone Rd
Grease
1/26/17
120
0
Clems Branch
No
16014 Marvin Rd
Other
1/26/17
732
732
McAlpine Creek
No
11630 James Jack Ln
Grease
1/27/17
295
295
Four Mile Creek
No
3401 Windbluff Dr
Roots
1/31/17
124
62
Rocky River
No
8630 Carolina Lily Ln
Grease
Wastewater Performance Report August 2017 19

2/1/17
465
0
Briar Creek
No
2316 Kingsbury Dr
Grease
2/3/17
2040
2040
Steele Creek
No
3031 Nevada By
Roots
2/4/17
1650
1650
Sugar Creek
No
4624 Hidden Valley Rd
Grease
2/5/17
1050
1050
Sugar Creek
No
5527 Southampton Rd
Debris In Line
2/8/17
256
128
McAlpine Creek
No
401 Highland Forest Dr
Roots
2/8/17
5
0
Lake Norman
No
17208 Connor Quay Ct
(Cornelius)
Pipe Failure
2/8/17
750
750
Gum Branch
No
6622 Sunman Rd
Grease
2/12/17
144
0
McAlpine Creek
No
6724 Bevington Ridge Rd
Roots
2/14/17
755
755
Briar Creek
No
423 Eastway Dr
Pipe Failure
2/15/17
10
0
McIntyre Creek
No
6600 Reames Rd
Roots
2/18/17
411
411
Clems Branch
No
16126 Lost Canyon Wy
Debris In Line
2/20/17
302
302
Campbell Creek
No
7910 Electra Ln
Grease
2/25/17
2872
2802
Stewart Creek
No
900 Lynn St
Pipe Failure
3/2/17
155
155
Steele Creek
No
12018 Pitty Pat Ct
Grease
3/3/17
100
0
Taggart Creek
No
4741 Eleanor Dr
Roots
3/5/17
1170
585
Little Sugar
Creek
No
1020 Camborne PI
Grease
3/9/17
78
0
McAlpine Creek
No
11435 Spreading Oak Ln
Debris In Line
3/9/17
270
0
Little Sugar
Creek
No
500 N Polk St (Pineville)
Debris In Line
3/9/17
602
301
Four Mile Creek
No
913 Gateshead Ln
(Matthews)
Roots
3/9/17
2390
2390
Little Sugar
No
550 Bilmark Av
Vandalism
Wastewater Performance Report August 2017 20

Wastewater Performance Report August 2017 21
Creek
3/13/17
38
0
Irwin Creek
No
198 N Pine St
Other
3/16/17
33
0
Clarks Creek
No
3612 Stoneglen Path
Roots
3/19/17
2990
2990
Stowe Branch
No
11034 Shopton Rd W, 28273
Other
3/19/17
172
172
Caldwell Station
No
10314 Caldwell Depot Rd
(Cornelius)
Roots
3/20/17
595
595
Little Sugar
Creek
No
1001 N Brevard St
Roots
3/20/17
100
100
Stewart Creek
No
1352 Plumstead Rd
Pipe Failure
3/20/17
94
94
Little Sugar
Creek
No
6600 Reagan Dr
Roots
3/21/17
25
0
Briar Creek
No
2230 Greenway Av
Pipe Failure
3/21/17
1300
1300
Briar Creek
No
5730 General Commerce Dr
Pipe Failure
3/22/17
189
0
Sugar Creek
No
225 S Poplar St
Other
3/25/17
955
955
Four Mile Creek
No
1101 Cindy Carr Dr
(Matthews)
Roots
3/25/17
1620
1450
Sugar Creek
No
5845 S Tryon St
Roots
3/27/17
82
0
Campbell Creek
No
8816 Eaglewind Dr
Debris In Line
4/1/17
89
89
Taggart Creek
No
3959 Carlyle Dr
Grease
4/3/17
400
400
McMullen Creek
No
4615 Castleton Rd
Roots
4/4/17
560
560
Little Hope Creek
No
4528 Halstead Dr
Debris In Line
4/4/17
1110
1110
McMullen Creek
No
2515 Cloister Dr
Pipe Failure
4/5/17
1675
1675
Briar Creek
No
200 Emerson Av
Grease
4/6/17
35
0
Steele Creek
No
12245 Taragate Dr
Roots
Wastewater Performance Report August 2017 21

4/6/17
4560
4560
Irvin Creek
No
225 S Poplar St
Grease
4/6/17
86
0
Dolby Creek
No
1898 Burgandy Dr
Roots
4/8/17
615
615
Irwin Creek
No
1700 S Mint St
Debris In Line
4/10/17
245
0
Taggart Creek
No
3303 Achievement Ln
Debris In Line
4/12/17
470
470
Briar Creek
No
2312 Vail Av
Pipe Failure
4/13/17
800
800
Irwin Creek
No
225 S Poplar St
Debris In Line
1400
1400
McMullen Creek
No
5925 St John Ln
Roots
4/13/17
4/14/17
335
285
McMullen Creek
No
4124 Bloomdale Dr
Grease
4/15/17
210
0
Campbell Creek
No
8816 Eaglewind Dr
Roots
4/17/17
354
354
Irwin Creek
No
542 Stegall St
Debris In Line
4/17/17
624
624
Campbell Creek
No
7534 Marlbrook Dr
Other
4/18/17
255
255
McAlpine Creek
No
509 Sardis Ln
Grease
20
0
Little Sugar
No
5500 N Tryon St
Debris In Line
4/20/17
Creek
4/20/17
315
0
Duck Creek
No
8238 White Ash Ct (Mint Hill)
Debris In Line
4/21/17
80
0
Briar Creek
No
6515 Cool Water Ct
Grease
4/24/17
460
460
McAlpine Creek
No
700 Sardis Ln
Debris In Line
60
0
Little Sugar
No
5032 Buckingham Dr
Debris In Line
4/25/17
Creek
4/25/17
960
960
McAlpine Creek
No
509 Sardis Ln
Debris In Line
4/25/17
300
300
Little Hope Creek
No
4820 South By
Grease
Wastewater Performance Report August 2017 22

Wastewater Perfonnance Report August 2017 23
650
630
Little Sugar
No
6041 South By
Other
4/26/17
Creek
5/2/17
210
0
Briar Creek
No
4037 Briarhill Dr
Grease
250
250
Reedy Creek
No
9431 Bradstreet Commons
Grease
5/5/17
Wy
5/8/17
300
300
Mc Mullen Creek
No
1208 Kingscross Dr
Grease
54
0
McAlpine Creek
No
14325 Ballantyne Meadows
Roots
5/8/17
Dr
10
0
Upper Little
No
1900 Randolph Rd
Pipe Failure
5/9/17
Sugar Creek
5/11/17
572
0
McAlpine Creek
No
10714 Back Ridge Rd
Grease
5/11/17
940
0
Irwin Creek
No
3407 Fincher By
Roots
140
0
Hager Creek
No
20201 Northport Dr
Grease
5/12/17
(Cornelius)
5/12/17
756
540
Sugar Creek
No
7240 Forest Point By
Roots
180
0
Little Sugar
No
400 Queens Rd
Pipe Failure
5/17/17
Creek
5/17/17
146
0
Stewart Creek
No
3615 Glenwood Dr
Debris In Line
5/18/17
20
0
Irwin Creek
No
300 S Turner Av
Grease
5/22/17
580
580
McMullen Creek
No
1208 Kingscross Dr
Pipe Failure
5/22/17
4000
4000
Irwin Creek
No
324 S Mint St
Debris In Line
5/22/17
825
825
Reedy Creek
No
2624 Buckleigh Dr
Debris In Line
5/25/17
900
900
McMullen Creek
No
1208 Kingscross Dr
Pipe Failure
5/26/17
8000
1
0
McAlpine Creek
No
7259 Point Lake Dr
Vandalism
Wastewater Perfonnance Report August 2017 23

5/27/17
1250
937
Little Hope
No
1128 Kurt Ct
Roots
5/30/17
147
0
McKee Creek
No
9111 Magnolia Lily Av
Debris In Line
395
395
Lake Norman
No
20220 Bethel Church Rd
Pipe Failure
6/1/17
(Cornelius)
6/2/17
94
0
Paw Creek
No
9218 Putnam PI
Vandalism
6/5/17
1065
1065
McAlpine Creek
No
6845 Ronda Av
Grease
1640
0
Catawba River
No
12255 Fullerton Ct
Roots
6/6/17
Tributary
125
0
Ramsey Creek
No
13815 Hagers Ferry Rd
Other
6/10/17
(Huntersville)
6/12/17
115
100
Campbell Creek
No
5905 Albemarle Rd
Grease
2800
2800
South Prong
No
15817 Centennial Forest Dr
Pipe Failure
6/12/17
Clark Creek
6/14/17
35
0
Upper Sugar
No
3800 N Tryon St
Grease
6/23/17
4200
2100
Stevens Creek
No
11826 Lawyers Rd (Mint Hill)
Pipe Failure
6/26/17
4900
2450
Toby Creek
No
8324 Paces Oak Blvd
Vandalism
6/26/17
325
163
Briar Creek
No
6520 Lake Dr
Grease
6/29/17
355
0
Kings Branch
No
419 Peachtree Dr S, 28217
Roots
145
0
Little Sugar
No
400 Queens Rd
Other
6/30/17
Creek
TOTAL NUMBER OF FY2017 COLLECTION SYSTEM SPILLS: 189
Volume Safely Collected, Treated & Discharged During Fiscal Year 2017: 28,748,000,000 Gallons (99.9995%)
Volume Spilled:
124,265.50 Gallons
Wastewater Performance Report August 2017 24

VI. Permit Compliance and Reporting Violations, by plant
Irwin Creek WWTP -- NPDES Permit #NC0024945
MONTH
PERMIT LIMIT VIOLATIONS
REPORTING REQUIREMENT VIOLATIONS
July, 2016
NA
NA
August, 2016
NA
NA
September, 2016
NA
NA
October, 2016
NA
NA
November, 2016
NA
NA
December, 2016
NA
NA
January, 2017
NA
NA
February, 2017
NA
NA
March, 2017
NA
NA
April, 2017
NA
NA
May, 2017
NA
NA
June, 2017
NA
NA
Mallard Creek WRF -- NPDES Permit #NC0030210
MONTH
PERMIT LIMIT VIOLATIONS
REPORTING REQUIREMENT VIOLATIONS
J u ly, 2016
NA
NA
August, 2016
NA
NA
September, 2016
NA
NA
October, 2016
NA
_
NA
November, 2016
NA
NA
December, 2016
NA
NA
January, 2017
NA
NA
February, 2017
NA
NA
March, 2017
NA
_
NA
April, 2017
NA
NA
Wastewater Performance Report August 2017 25

May, 2017
NA
NA
June, 2017
NA
NA
McAlpine Creek WWTF -- NPDES Permit #NC0024970
MONTH
PERMIT LIMIT VIOLATIONS
REPORTING REQUIREMENT VIOLATIONS
_
July, 2016
NA
NA
NA
August, 2016
NA
September, 2016
NA
NA
October, 2016
NA
NA
November, 2016
NA
NA
December, 2016
NA
NA
January, 2017
NA
NA
February, 2017
NA
NA
March, 2017
NA
NA
April, 2017
NA
NA
May, 2017
NA
NA
June, 2017
NA
NA
McDowell Creek WWTP -- NPDES Permit #NC0036277
MONTH
PERMIT LIMIT VIOLATIONS
REPORTING REQUIREMENT VIOLATIONS
July, 2016
NA
NA
August, 2016
NA
NA
September, 2016
NA
NA
October, 2016
_
NA
_
NA
November, 2016
NA
NA
December, 2016
NA
NA
January, 2017
NA
NA
February, 2017
NA
NA
March, 2017
NA
NA
Wastewater Performance Report August 2017 26

Sugar Creek WWTP -- NPDES Permit #NC0024937
MONTH
PERMIT LIMIT VIOLATIONS
REPORTING REQUIREMENT VIOLATIONS
NA
NA
NA
NA
July, 2016
NA
NA
August, 2016
September, 2016
NA
October, 2016
NA
November, 2016
NA
NA
December, 2016
NA
NA
January, 2017
NA
NA
February, 2017
NA
NA
March, 2017
NA
NA
April, 2017
NA
NA
May, 2017
NA
NA
June, 2017
NA
NA
Ashe Plantation WWTP -- NPDES Permit #NC0065749
MONTH
PERMIT LIMIT VIOLATIONS
REPORTING REQUIREMENT VIOLATIONS
July, 2016
NA
NA
August, 2016
NA
NA
September, 2016
NA
NA
October, 2016
NA
NA
November, 2016
NA
NA
Wastewater Performance Report August 2017 27

Oxford Glen Plantation WWTP -- NPDES Permit #NC0065384
MONTH
PERMIT LIMIT VIOLATIONS
REPORTING REQUIREMENT VIOLATIONS
July, 2016
NA
NA
August, 2016
Fecal Coliform Dail Max
NA
September, 2016
NA
NA
NA
October, 2016
NA
November, 2016
NA
NA
December, 2016
NA
NA
January, 2017
NA
NA
February, 2017
NA
NA
NA
March, 2017
NA
April, 2017
NA
NA
May, 2017
NA
NA
June, 2017
NA
NA
Wastewater Performance Report August 2017 28
0