NC0030210_Annual Performance_20190820

CHARLOTTE
W4 ATE R
August 20, 2019
RECEIVED/NCDEQ/DWR
Deborah Gore SEP 0 3 2019
NC Division of Water Quality
1617 Mail Service Center Water Quality
Raleigh,NC 27699-1617 Permitting Section
Dear Ms. Gore,
Enclosed is a copy of the Charlotte Water's Wastewater Performance Report for the fiscal year
ending June 30, 2019. Also enclosed is a copy of the bill insert summary of the report, which will
be sent out to more than 250,000 customers during September.
We have informed our staff and the city/county phone center about the report and they are
prepared to field or properly refer any questions or comments we receive. In addition, we have
shared this report with our elected officials on the Charlotte City Council, and with the six towns
we serve(Matthews, Mint Hill, Pineville, Cornelius, untersville and Davidson) as well as the
Mecklenburg County Manager. I mailed copies to i��4r '��er at the NCDENR Mooresville
Office as well.
The bill insert summary and detailed report may be found online at www.charlottewater.org. An
advertisement will also be placed in a local Spanish newspaper as well as on our website.
If you have any questions or concerns about this report,please call or email me. My office number
is 704-336-1018 and my email is [e-mail].
Sincerely,
Gig &leg
Camden Coley
Charlotte Water
Charlotte Water 5100 Brookshire Blvd,Charlotte,NC 28216 charlottewater.org
Operated by the City of Charlotte

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September 2019 Bill Insert to customers
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4222 Westmont Drive Charlotte, NC 28217

WASTE WATER TREATMENT DEWATERING:
DIGESTER Water is removed BIOSOLIDS
A biological process that reduces the volume from the processed Used as a soil amendment
of organic materials and destroys biosolids to produce a and organic fertilizer for crops
SLUDGE(SOLIDS) pathogenic bacteria to convert the sludge to cake-like solid that is not destined for human
_\ MOVE TO THE DIGESTER recyclable biosolids loaded onto trucks. consumption.
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WASTE WATER PRIMARY TREATMENT: LIQUID AERATION BASINS SECONDARY CLARIFIER: EFFLUENT DISINFECTION
FROM HOME Got Removal(gravity pulls larger AND Air is circulated Additional solids are FILTRATION: Effluent is
ENTERS SANITARY particles to the bottom)and SMALL and bacteria(bugs) separated from the Liquid is disinfected
SEWER Primary Clarifier(solids are SOLIDS remove dissolved liquid and piped back filtered to with either
separated from water by settling pollutants, to the biosolids remove any ultra violet light
to the bottom of the clarifier) phosphorus and digester remaining or chlorine.
nitrates small particles.
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 2019 3

II. Summary of System Performance
FY19 Performance
Charlotte Water successfully collected and treated 99.9 percent of the more than 33
billion gallons of wastewater the community produced in the past fiscal year. There
were 162 sanitary sewer overflows (SSOs) in our community, a decrease of two
spills compared to the year before.
Yearly SSOs vs 5-Year Moving Average
450
400
362
350
358 349
300 335
ON 250 281
260 247
200
224
150 177 189 162
164
100 ♦ 90
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Fiscal Year
Yearly SSOs—4-5-Year Moving Average • Reportable SSOs
The number of spills per 100 miles of pipe continued to decline from 10.8 in 2007
to 3.7 spills in fiscal year 2019 as illustrated by the table on page 5.
Wastewater Performance Report August 2019 4

Number of SSOs/100 Miles vs 5-Year Moving Average
12
11
10 10.s
9
d 8
7 2
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Fiscal Year
--4—SSOs/100 Miles —•-5-Year Moving Average • Reportable SSOS/100 Miles
J
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
any size overflow reaching 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 public
manhole or public collection system 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). There were 90 reportable spills (by state
definition) during fiscal year 2019, 17 less than the fiscal year 2018 total of 107. All
spill response protocols are followed regardless of the spill volume or reporting
status. 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.
Wastewater Performance Report August 2019 5

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).
Performance Highlights
• CLTWater celebrated some important milestones in FY2019 even as it took
numerous actions to prevent overflows and protect water quality through
effective wastewater treatment.
• Our wastewater treatment plants met 99.97 percent of all permitted discharge
limits.
• All seven wastewater treatment plants earned Peak Performance Awards from
the National Association of Clean Water Agencies (NACWA) for the calendar year
ending 2018. 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
seventh Platinum Award for eleven consecutive years of perfect compliance.
McDowell Creek Wastewater Treatment Plant earned their second Platinum
Award, and their sixth out of last eleven years. Oxford Glen, Mallard Creek, and
Sugar Creek Wastewater Treatment Plants earned Gold Awards for zero permit
violations in a one-year period. Ashe Plantation and Irwin Wastewater
Treatment Plants earned a silver with each having only one permit violation in a
one-year period. Over 6,200 compliance tests were conducted during the 2018
calendar year.
• 21.5 miles of wastewater pipe and 301 manholes were rehabilitated or replaced.
• 259 miles of wastewater pipe were treated with root control chemicals.
• 921 .83 miles of wastewater lines were cleaned (including some multiple
cleanings in the same location) by CLTWater Field Operations Staff and an
additional 49.52 miles of pipe were cleaned by contractors.
• 248 wastewater service connections were replaced.
• 23 miles of rights of way were cleared by contractors to maintain access to off-
street sanitary wastewater pipes and to help prevent root intrusions. An
additional 60.25 miles were cleared by CLTWater staff.
• 172 miles of pipe were closed circuit television recorded (CCTV) for inspection by
CLTWater staff and contractors.
Wastewater Performance Report August 2019 6

• There are 82 Wastewater Lift Stations serving the CLTWater service area. Staff
performed 161 preventative maintenance/electrical tasks for a total of 3,180
work hours. This does not include daily/weekly station checks, wet well cleaning,
emergency generator testing, or emergency/routine repairs. Mint Hill Commons
Lift Station was added and a new Steele Creek Lift Station began service.
• McAlpine Creek Wastewater Treatment Plant captures and converts methane
gas (a byproduct of wastewater treatment) into a fuel for electricity production
and useful heat. In the past 12 months the engine has had an average uptime of
70%. The generator has created more than 15 billion kilowatt hours, resulting in
a power credit of close to $600,000 total. Running at 1 megawatt (MW), the
engine puts out the equivalent of about 5 acres of solar, around the clock and
even on cloudy days. Methane gas is also generated at Irwin, McDowell, and
Mallard WWTPs. Methane gas is used to generate heat required for anaerobic
digestion to treat the solids produced during the treatment process.
Capital& Community Investment Highlights
• Ayrsley Gravity Sewer Replacement Phase 2 started construction in August
2017 and is complete. This is a $2.5 million investment to serve the growing
population in the South Tryon 1-485 area.
• Beards Creek Wastewater Improvement Project started construction in
September 2018 and will be complete by end of summer 2019. Crews are
upsizing 4,100 linear feet (LF) of pipe to serve growing area in eastern
Mecklenburg County This is an investment of$4 million.
• Belmont and Optimist Park Wastewater Pipe Replacement (Little Sugar Creek
Tributary Trunk Sewer North Tryon area) began in October 2018 and will be
complete by April 2021. Approximately 6,327 LF of pipe is being upsized to
serve the growing area around Belmont and Optimist Park neighborhoods.
The project is an investment of $12.3 million.
• Briar Creek Relief Sewer Project (Phase Three) began in 2016 and is complete
with substantial completion as of February 10, 2019.
• Coffey and Taggart Creek Outfall project provides for the evaluation, design,
and construction of necessary improvements to the Taggart Creek Outfall to
help manage flows and support growth from Taggart, Long, and Paw basins.
• Doby Creek Sanitary Sewer Pipeline Improvements serves areas being
developed along the Blue Line Light Rail Extension. The pipeline project
replaces 15,600 LF of gravity sewer to meet projected demands of the sub-
basin. The project is 76% complete.
Wastewater Performance Report August 2019 7

• Four Mile Creek Tributary Wastewater Project is upsizing 4,300 LF of pipe to
serve growing area in Town of Matthews. The project started in April 2019
and should be complete in first quarter of 2020. This is an investment of $2.6
million.
• Irvins Creek Tributary Wastewater Improvement Project is installing 3,850 LF
of pipe to serve Town of Mint Hill neighborhoods. The project started in
January 2018 and be complete by end of 2019. This is an investment of $3.9
million.
• Irwin Creek Tributary Wastewater Pipe Replacement Project (Fieldcrest Road
to Barringer Drive) installed 3,988 LF of larger pipe to serve South Charlotte
area. This is an investment of $2.5 million.
• Irwin Creek Wastewater Treatment Plant Improvements Phase II provides
renovations and equipment upgrades to the grit facility, primary and
secondary clarifiers, aeration basins, chemical feed facility, blower building,
filters, power distribution system, yard piping and instrumentation and
controls.
• Little Sugar Creek Tributary to Fairview Road Sanitary Sewer Improvements
project provides for 6,400 LF of 30 & 24 inch sanitary sewer lines that parallel
Fairview Road to the south from Park Road Park to Sharon Road. The project
was substantially completed in April 15, 2019.
• Mallard Creek Wastewater Treatment Plant Rehabilitation and UV Upgrade
consists of the rehabilitation and upgrade of the Final Clarifiers and their
pumping stations, Effluent Filters, and UV Disinfection System. The
preliminary engineering for this project was completed in fiscal year 2018
and detailed design is ongoing. Construction is expected to start in January
2020.
• McAlpine Wastewater Treatment Plant and Potable/Non-Potable Reliability
Improvements project included the improvements to the potable/non-
potable water systems, rehabilitation of the intermediate lift station, loading
and launching of the pump stations and waste activated sludge force mains
from Sugar Creek WWTP, and improvements to the McAlpine entrance road.
The project started in fiscal year 2017 and is 94% complete. This is a $6.5
million investment.
• McMullen and McDowell Basin Sanitary Sewer Improvement Projects are two
basin-wide projects that have completed or nearly completed their Phase 1
portion detailing infrastructure condition assessments, population
projections, basin modeling as well as inflow and infiltration improvements.
Both projects are anticipated to begin Phase 2 - engineering services for
design and construction.
Wastewater Performance Report August 2019 8

• Paw Creek Sewer Outfall Replacement Project upsizes 13,000 LF of 18-inch
and 24-inch pipe to serve growing area in western Mecklenburg County. The
project started in April 2019. This is an investment of$4.5 million.
• Steele Creek Lift Station Replacement project isa new 30 MGD lift station
facility and 35,000 LF of 36-inch and 63-inch sanitary sewer force main will
provide adequate regional sanitary sewer capacity to the Steele Creek area.
This project supports long term growth and is 99 percent complete. This is an
investment of $44 million.
• Steele Creek Outfall project was bid and will begin construction July 2019.
This 11,000 LF of wastewater pipe will serve a growing area in southwestern
Mecklenburg County.
• Stevens Creek Lift Station, Force Main & Gravity Sewer will serve the Goose
Creek and Stevens Creek drainage basins, which includes the Town of Mint
Hill. The project is the first step in providing public sewer service to an area
that is predominantly on septic systems. This project will also facilitate the
removal of a nearby package wastewater plant. The construction cost is
$12.1 M and is anticipated to begin construction in late summer 2019 and be
completed by the end of 2020.
• Sugar Creek 54-inch Sanitary Sewer Rehab (Part of Large Diameter Sanitary
Sewer Rehabilitation) project was completed. Approximately 6,400 LF of
deteriorated reinforced concrete pipe, located in the Sugar Creek basin, was
renewed with a cured-in-place pipe.
• Sugar Creek Wastewater Treatment Plant Reliability Improvements will
provide improvements to the aeration system, main lift station, effluent filter,
potable and non-potable water systems, final clarifier launder,
instrumentation and controls and chemical phosphorus removal capability.
Construction started April 2018 and will be substantially complete by end of
calendar year 2019. This is an investment of $23.5 million.
• Wilmore Neighborhood Wastewater Pipe Replacement Project began
October 2018 and will be completed by November 2019. Approximately
6,246 LF of pipe is being upsized to serve the growing area around Wilmore
and SouthEnd neighborhoods. The project is an investment of $7.2 million.
Wastewater Performance Report August 2019 9

I '
FLWFREE
Fats, Oils and Grease Education
• 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 5,449 food service
establishments and restaurants (not including follow-up inspections) to ensure
proper grease disposal.
• Staff issued 231 Notices of Deficiency (NOD) of which 174 returned to
compliance and 30 are still under investigation.
• Staff issued four Notices of Violation (NOV).
• In total, 44 grease traps were installed by businesses to fulfill NOD
requirements.
• The City continued its educational program to teach proper disposal of pipe-
blocking materials.
• Inspectors mailed information to 1,236 customers near spill sites and handed
out information to 2,231 customers in apartments / multi-family complexes.
• Staff conducted presentations to more than 1,640 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.
• CLTWater created the Pipes Hate Wipes campaign to educate residents about
the impact flushable wipes have on the collection system and wastewater
treatment plants. Seven 6,15 and 30 second videos were created and 10% of the
population of Mecklenburg county was reached via a three-month social media
campaign using paid Facebook/Instagram advertisements and YouTube Pre-roll.
• Communications staff posted alerts on Nextdoor to inform residents of spills
that exceeded 1,000 gallons in creeks or any amount that reached recreational
water.
Wastewater Performance Report August 2019 10

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 162 sewer spills that occurred, pipe
failure accounted for most of the sanitary sewer overflows. The 'pipe failure' and
'other' categories include damage caused by contractor error. CLTWater works with
contractors to prevent infrastructure damage and situations that could cause an
SSO.
The largest individual spill was on September 4, 2018 near 3900 Billy Graham
Parkway. An estimated 2,658,000 gallons reached Taggart Creek in the Catawba
River Watershed. The overflow was caused by a fallen tree breaking a wastewater
pipe. Crews quickly found the overflow and began pumping wastewater around the
broken pipe to stop the discharge into the creek. CLTWater is proactively walking
easements and removing trees before they can cause an SSO. This one spill
accounted for more than 59.5 percent of the total gallons spilled this year.
CLTWater experienced 10 spills that were caused by heavy rain events exceeding
capacity of wastewater pipe or manhole. Severe natural conditions, including
Hurricane / Tropical Storm Florence and Michael, caused several large overflows
totaling 1,656,632 gallons. No matter the weather, CLTWater continues to reduce
spills and quickly respond to the things that are beyond our control. CLTWater
continues to outperform the five-year moving average (graph on pages 4 and 5).
Community investments in large relief sewers, equalization basins, and staff
training help us enhance our wet weather spill prevention and response even as
the collection pipe system is growing.
The Billy Graham Parkway overflow combined with the volumes of the 10 other
spills caused by severe natural conditions totals 4,314,632 gallons or more than 97
percent of total gallons spilled for the year.
CLTWater also experienced two spills that were caused by inflow and infiltration (I &
I). Sanitary sewer pipes are not designed to collect and transport rain water but
occasionally water will enter the pipe. CLTWater crews investigate and repair
locations where water enters the sanitary sewer pipe network.
Wastewater Performance Report August 2019 11

Thirty-seven of the spills were 100
gallons or less with eighteen of those1110
being 50 gallons or less which are r'
examples of our staffs dedication to 111/
respond quickly.
Tree root blockage number of
overflows are down. CLTWater has the
one of the largest root control
programs.
Legend 4
Mainline blockages, byall causes and
g FY19 Root Control Areas �.
not related to overflows, have been Status
46.
reduced from 122 in fiscal year 2018 to ®Active
101 in fiscal year 2019. This reduction _Completed inFY19
is a good indication of effective pipe
cleaning efforts.
Staff are researching SSO clusters to identify and prioritize work to minimize
overflows. They are also investigating possible solutions to prevent low pressure
sewer system overflows.
Wastewater Performance Report August 2019 12

Fiscal Year 2019 Overflows by Primary Cause
Pipe Failure:41 spills, Debris: 35 spills,
25.3% 21.6%
Vandalism:4 spills, 1111111111111111111.11111111111
2.5%
Grease: 28 spills,
17.3%
Inflow and J
Infiltration: 2 spills,
1.2%
Grease and other blockages that lead to sewer overflows are cleared by CLTWater
crews, using various cleaning methods, including mechanical rodders and truck-
mounted water jets. After cleaning, if follow up CCTV discovers damaged pipe, a
repair is initiated based on CLTWater's "Find and Fix" protocols. 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 90 percent of the spills within 60 minutes and
99.4 percent of the spills within 120 minutes. The average for all response was 30
minutes. The state standard for response is 120 minutes or less.
Field Operations - Critical Assets Group
Regular inspections are performed by Field Operation - Critical Assets group which
was established to inspect all high priority and vulnerable lines. The Critical Assets
group has expanded their inspection responsibilities to include additional areas not
previously considered vulnerable. In addition, as part of a collaboration effort with
Wastewater Performance Report August 2019 13

the Mecklenburg County Water Quality group this plan has resulted in finding
numerous stream bank erosion problems, not previously seen, which threaten
sanitary sewer lines. A contract for streambank restoration, which protects sanitary
lines, was established several years ago and has been renewed.
Wastewater Treatment Plant Challenges
Charlotte Water's wastewater treatment plants met 99.97 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.
On January 25th 2019, an estimated 27,600 gallons of waste escaped a sludge line
near 10301 Kilmory Trace and entered Lower Little Sugar Creek. Crews responded
and repaired the sludge line which was damaged by a private contractor.
CLTWater had two permit violations in fiscal year 2019. Ashe Plantation WWTP had
a monthly average ammonia violation in February 2019. Irwin Creek WWTP
exceeded its daily maximum fecal coliform limit in June 2019. A Notice of
Deficiency was issued for the Ashe Plantation incident and NCDWR has issued a
Notice of Violation for the June Irwin Fecal result.
Charlotte Water System Protection
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
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 2019, the
Wastewater Performance Report August 2019 14

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 industrial inspections and site visits in the past fiscal
year.
• As part of the Commercial Source program, food service establishments and
other grease producing businesses are identified and inspected on an annual
basis.
• During fiscal year 2019 the Commercial Source program initiated an
outreach program specifically focused on multi-family housing properties.
• CLTWater honored 26 local companies with Environmental Excellence
Awards in fiscal year 2019 including:
O 4 Platinum recipients for at least five consecutive years of Gold level
compliance and reporting,
O 16 Gold recipients for 100% compliance with permit limits and
reporting,
O 6 Silver recipients for 90% compliance with permit limits and 100%
compliance with reporting, and
O 1 Crown Award recipient in the category of Industrial Pretreatment.
• CLTWater recorded 301 industrial permit limit violations for effluent samples
collected at Significant Industrial Users (SIU) during the past fiscal year,
resulting in a Notice of Violation, Notice of Non-Compliance, Administrative
Order, or similar assessment.
• 35 Notices of Violation with Civil penalties were assessed to users during the
fiscal year for permit limit exceedances and other violations.
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. The Long Creek Lift Station was also
identified to be converted into a regional wastewater treatment plant which will be
named the Stowe Regional Water Resource Recovery Facility.
Wastewater Performance Report August 2019 15

Charlotte Water's Wastewater Master Plan is a comprehensive planning effort to
evaluate system needs across the entire wastewater system. This planning effort is
the first-time wastewater system needs have been assessed on a system wide scale
and will provide a guiding framework and vision for system performance as well as
a capital expenditure roadmap to ensure priorities are addressed in a cost effective
manner. The master plan's completion is expected to be in the fall of 2020.
Major studies of the Mallard and McDowell sewer basins have been completed and
provide recommendations to address existing collection system and treatment
capacity issues. In accordance with the recommendation from the Mallard basin
study, work has begun to expand the Mallard Creek WRF capacity from 12 to 13.1
MGD by the end of 2021 with additional phases of expansion to follow.
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 and a preliminary engineering report
completed in 2017. CLTWater submitted the NPDES permit application for the new
regional facility, the Stowe Regional Water Resource Recovery Facility named in
honor of former Charlotte Water utility director Joe C. Stowe Jr., which will treat
about 12 mgd with a possible expansion to 25 mgd at a future date if necessary.
Development along the city's light rail Blue Line prompted a study of the Upper
Little Sugar Creek basin, which includes much of the eastern half of the uptown
Central Business District (CBD) where infill development has been occurring at
record pace. The study will coordinate several existing construction projects already
underway within the basin with overall basin growth projections to recommend
improvements to capacity in the basin's larger trunk sewer. An additional modeling
study for smaller diameter sewers along the blue line corridor is also underway to
provide tools necessary for Charlotte Water staff to analyze capacity and prevent
local sewer overflows.
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.
Wastewater Performance Report August 2019 16

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.
Examples of projects identified from the CAP reviews are mentioned on pages 7-9.
Capacity Assurance Requests
2019* ` ' 344(projected 600+
by end of 2019)
2018 t 1391
•
2017 t - 1 387
2016 ` 1 355
2015 t T - 1 240
2014 1 201
2013 170
2012 kommins 128
0 _ 100 150 250 300 350 400 450
*January-June 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
Wastewater Performance Report August 2019 17

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.
s/ l/2o/a
David Czerr, Interim Director Date
Charlotte Water
Wastewater Performance Report August 2019 18

V. Listing of Sewer Spills
The following is a list of spills (in gallons) from the public wastewater system that occurred between July 1, 2018 and
June 30, 2019.
Volume Volume to Surface Water Fish
Date Surface Address Primary Cause
(Gallons) Water Name Kill?
Other - contractor hit
7/2/18 369 0 Stevens Creek No 11631 Lawyers Rd, Mint Hill force main
Other- vehicle
7/3/18 25 0 Lake Norman No 17918 Nantz Rd, Cornelius damaged service
7/5/18 115 0 Upper Little Sugar No 6404 Elgywood Ln Grease
7/6/18 900 675 Little Sugar Creek No 6620 Candlewood Dr Other - heavy rain
7/9/18 39 0 Irwin Creek No 103 N Ramsey St Roots
7/9/18 350 0 Long Creek No 1522 Long Paw Ln Debris In Line
7/16/18 2601 2500 Mallard No 325 Caprington Av Debris In Line
7/18/18 1230 1230 Irwin Creek No 920 Hamilton St Pipe Failure
Other - contractor
7/19/18 250 250 Little Hope Creek No 1000 Seneca PI pump failure
Other - contractor
ran over low
pressure sewer
7/20/18 46 0 Lake Norman No 16914 Belle Isle Dr, Cornelius service box
Inflow and
7/23/18 230 0 Little Sugar Creek No 6626 Candlewood Dr Infiltration
7/24/18 624 624 Lake Norman No 13701 Wavecrest Ct, Cornelius Pipe Failure
7/30/18 264 200 Campbell Creek No 5603 Farm Pond Ln Grease
Wastewater Performance Report August 2019 19

Volume Volume to Surface Water Fish
Date Surface Address Primary Cause
(Gallons) Water Name Kill?
Inflow And
8/1/18 780 780 Little Sugar Creek No 6626 Candlewood Dr Infiltration
Other - contractor hit
a manhole causing
8/6/18 1200 0 Sugar Creek No 4800 Wallingford St accidental blockage
8/7/18 550 550 McIntyre Creek No 5225 Spector Dr Grease
8/7/18 38 0 Upper Little Sugar No 4043 Redwood Ay Debris In Line - rags
8/7/18 330 330 Flat Branch No 12040 Parks Farm Ln Grease
8/10/18 930 930 Steele Creek No 10510 Steele Creek Rd Grease
8/12/18 200 200 Little Hope Creek No 1022 Forest Oak Dr Vandalism - rock
8/20/18 135 0 Taggart Creek No 2910 Horseshoe Ln Pipe Failure
Pipe Failure - fallen
8/22/18 8.5 0 Toby Creek No 8938 Cameron By tree
8/23/18 3000 3000 Little Hope Creek No 1100 Scaleybark Rd. Pipe Failure
8/29/18 340 340 McMullen Creek No 2327 Knickerbocker Dr Grease
8/31/18 240 240 McMullen Creek No 3704 Litchfield Rd Pipe Failure
8/31/18 310 0 Lake Norman No 19731 BUSTLE RD Pipe Failure
Debris In Line-wire
9/3/18 2100 1050 Walker Branch No 12103 Shadow Ridge Ln and other debris
9/4/18 2001 2001 Four Mile Creek No 3509 High Ridge Rd Pipe Failure
9/4/18 258 258 Mc Mullen Creek No 3335 Gresham PI Pipe Failure
Pipe Failure - fallen
9/4/18 2658000 2658000 Taggart Creek No 3900 Billy Graham Pky. tree
9/7/18 1150 0 McAlpine Creek No 10909 VALLEY SPRING DR Roots
Wastewater Performance Report August 2019 20 1

Volume to
Volume Surface Water Fish
Date Surface Address Primary Cause
(Gallons) Water Name Kill?
Mallard Creek Debris In Line- paint
9/13/18 700 700 Tributary No 11815 N. Tryon St. cans, plastic bottles
Severe Natural
9/16/18 163200 163200 McMullen Creek No 3624 Huckleberry Rd Condition
Severe Natural
9/16/18 240000 240000 Little Hope Creek No 1026 Montford Dr Condition
Severe Natural
9/16/18 500000 500000 Four Mile Creek No 3203 Keegan Wy Condition
Severe Natural
9/16/18 225000 225000 Briar Creek No 1215 Andover Rd Condition
Severe Natural
9/16/18 115200 115200 Briar Creek No 2010 Bay St Condition
Severe Natural
9/16/18 105600 105600 Briar Creek No 426 Lorna St Condition
Severe Natural
9/16/18 105600 105600 Six Mile Creek No 8200 Tonawanda Dr Condition
Severe Natural
9/16/18 96000 96000 McIntyre Creek No 9235 Feldbank Dr Condition
9/17/18 476 476 Paw Creek No 1201 Kiker Cr Roots
Other- contractor
9/30/18 1000 300 Little Sugar Creek No 2300 Turnberry Ln damaged pipe
9/30/18 2760 2760 Mallard Creek No 9528 Robert Burns Court Roots
15514 Fisherman's Rest Ct,
10/1/18 120 0 Lake Norman No Cornelius Pipe Failure
Wastewater Performance Report August 2019 21

Volume to
Volume Surface Water Fish
Date Surface Address Primary Cause
(Gallons) Water Name Kill?
Pipe Failure -
contractor damaged
low pressure sewer
10/8/18 322 0 Lake Norman No 18948 Casual Cay Ln, Cornelius service
Severe Natural
10/11/18 2330 2330 Four Mile Creek No 404 Sadie Dr, Matthews Condition
10/12/18 50 0 Lake Norman No 18103 Harbor Light By, Cornelius Pipe Failure
Other - contractor
10/13/18 1025 850 Irwin Creek No 1300 Oaklawn Av bypass pump failure
10/17/18 92 0 Little Sugar Creek No 939 Charlottetowne Av Grease
Pipe Failure - Force
10/18/18 1350 1350 Clear Creek No 11124 Sorrel Ridge Dr, Mint Hill main
10/18/18 12793 12793 Little Sugar Creek No 1330 E 4th St Pipe Failure
10/24/18 44 0 Four Mile No 1006 Chelsea PI, Matthews Roots
Other- bypass pump
10/25/18 45 0 Four Mile Creek No 404 Sadie Ln., Matthews leak
South Prong West
Branch Rocky
10/29/18 136 0 River No 212 Pat Stough Ln, Davidson Debris In Line- wipes
Debris In Line - rocks
10/29/18 36 0 McAlpine Creek No 1053 Bellemeade Ln and bricks
Debris In Line- rocks,
dirt from a
11/1/18 37 0 Irwin Creek No 1401 WhisnantSt construction project
11/2/18 1290 1290 Irwin Creek No 1824 West By Grease
11/3/18 20 0 Taggart Creek No 3914 Whitehall Dr Grease
11/4/18 156 0 McAlpine Creek No 7604 Compton Ct Roots
Wastewater Performance Report August 2019 22

Volume to
Volume Surface Water Fish 1
Date Surface Address Primary Cause
(Gallons) Water Name Kill?
Debris In Line -
wipes, adult diapers,
11/6/18 198 198 McAlpine Creek No 11240 Ballantyne Trace Ct grease
Pipe Failure - tree
11/20/18 660 0 Lake Norman No 19525 Mary Ardrey Cr, Cornelius stump removal
11/21/18 435 0 Lake Norman No 19040 Mary Ardrey Cr, Cornelius Pipe Failure
South Prong Clark 12620 Cumberland Crest Dr,
11/23/18 675 675 Creek No Huntersville Grease
Lower Little Sugar
11/25/18 800 800 Creek No 2016 Valencia Tr Roots
Debris In Line-
11/28/18 138 0 Sugar Creek No 108 Church St, Pineville construction sand
Debris In Line- rocks,
11/29/18 122 0 McAlpine Creek No 8854 Mullis Forest Ct, Mint Hill construction debris
11/30/18 52 0 Briar Creek No 3540 Enfield Rd Debris In Line-
12/5/18 390 390 McAlpine Creek No 7203 Connan Ln Debris In Line - paper
12/9/18 1500 1500 McMullen Creek No 8308 TIFTON RD Debris In Line- rags
12/12/18 100 0 Fourmile Creek No 11140 Sir Francis Drake Dr, 28277 Debris In Line
12/23/18 94 94 Briar Creek No 618 Museum Dr Grease
12/24/18 295 0 McAlpine Creek No 5425 Swinstead PI Roots
Wastewater Performance Report August 2019 23

Volume to
Volume Surface Water Fish
Date Surface Address Primary Cause
(Gallons) Water Name Kill?
1/3/2019 34 0 McMullen Creek No 4723 Doris Av Roots
1/7/2019 92 0 Briar Creek No 529 Hempstead PI Pipe Failure
Pipe Failure - LPSS
damaged likely
1/10/2019 92 0 McDowell Creek No 15225 Red Canoe Wy construction
1/10/2019 150 0 Briar Creek No 6520 Independence By Debris In Line
Upper Little Sugar
1/11/2019 56 0 Creek No 1321 Harrill St. Pipe Failure
Other - LPSS box
1/14/2019 540 0 Lake Wylie No 14217 Ridgewater Wy, 28278 damaged by truck
1/14/2019 210 0 Briar Creek No 5352 Mock Robin Ln Roots
Debris In Line - sticks
1/14/2019 360 360 Briar Creek No 336 Wendover Hill Ct and rags
1/19/2019 90 90 Back Creek No 2121 Katherine Kiker Rd Debris In Line - rags
Wastewater Performance Report August 2019 24

Volume to
Volume Surface Water Fish
Date Surface Address Primary Cause
(Gallons) Water Name Kill?
1/20/2019 1230 900 Campbell Creek No 5301 Dawndeer Ln Debris In Line - rags
Upper Little Sugar
pP g
1/25/2019 600 600 Creek No 4919 Seacroft Rd Pipe Failure
1/26/2019 58 0 Catawba No 4702 Mountain Point Ln Pipe Failure
1/28/2019 27 0 Sugar Creek No 406 Sleepy Hollow Rd Roots
1/28/2019 1040 1040 Taggart Creek No 5000 Airport Center Py Roots
1/29/2019 4460 4460 Lake Wylie No 10720 Big Bear Dr Debris In Line- rocks
1/29/2019 610 610 Steele Creek No 10519 Queensmead Cr Debris In Line- rags
Lower Little Sugar Other - contractor
1/31/2019 930 450 Creek No 6037 Ingleside Dr, 28210 damaged pipe
Wastewater Performance Report August 2019 25

Volume to
Volume Surface Water Fish
Date Surface Address Primary Cause
(Gallons) Water Name Kill?
2/3/2019 985 985 McAlpine Creek No 10110 Victoria Mill Ct Roots
2/4/2019 126 0 Briar Creek No 1615 Arnold Dr Debris In Line - rags
2/4/2019 360 0 McDowell Creek No 13732 Statesville Rd (Huntersville) Grease
Pipe Failure - force
main air release
2/4/2019 750 0 Steele Creek No 14523 Carowinds By valve leaking
2/6/2019 1625 1625 Briar Creek No 3030 Latrobe Dr, 28205 Grease
Debris In Line-
2/6/2019 2180 1090 Irwin Creek No 2449 Kendrick Ave. rocks and rags
2/8/2019 160 0 Irwin Creek No 3520 Atlas Dr Grease
2/8/2019 82 82 Sugar Creek No 3224 Piper Ln Roots
2/8/2019 230 0 McMullen Creek No 3015 Robin Rd Roots
2/9/2019 1106 553 Irwin Creek No 242 W Tremont Av, 28203 Pipe Failure
Wastewater Performance Report August 2019 26

Volume to
Volume Surface Water Fish
Date Surface Address Primary Cause
(Gallons) Water Name Kill?
2/9/2019 970 727 Clarke Creek No 7101 Highland Creek Py Debris In Line
Pipe Failure -
contractor damage
2/15/2019 680 680 McAlpine Creek No 733 Charter PI. (bored)
2/20/2019 340 0 Long Creek No 106 Fielding Rd Roots
2/21/2019 450 450 Steele Creek No 14905 Choate Cir Pipe Failure
2/21/2019 900 900 Long Creek No 120 Waycross Dr Grease
Little Sugar Upper
2/22/2019 980 980 Creek No 4918 Horton Ct Roots
Upper Little Sugar Debris In Line -
2/26/2019 160 0 Creek No 325 Hawthorne Ln wipes
3/1/2019 243 0 Steele Creek No 14905 Choate Cir Pipe Failure
3/3/2019 1350 675 Mallard Creek No 327 Gray Dr, 28213 Pipe Failure
3/12/2019 127 0 Upper Little Sugar No 1909 South By Grease
Creek
3/13/2019 310 290 Mallard Creek No 1890 Greymouth Rd Debris In Line -
trash, construction
debris
Wastewater Performance Report August 2019 27

Volume to
Volume Surface Water Fish
Date Surface Address Primary Cause
(Gallons) Water Name Kill?
3/13/2019 2320 2320 Back Creek No 3501 Caldwell Ridge Py Roots
3/15/2019 1500 0 Catawba River No 11618 Carrington Hill Dr Vandalism - large
rocks
3/16/2019 2470 1852.5 Clarke Creek No 11505 Woodfire Rd Grease
3/18/2019 300 300 Sugar Creek No 638 Archdale Dr Grease
3/22/2019 90 45 McAlpine Creek No 611 Bellows Ln Roots
3/25/2019 1440 1440 Upper Little Sugar No 1830 Park Dr Other - contractor
damaged pipe
3/30/2019 140 0 Lake Norman No 7420 Waterview Dr (Cornelius) Pipe Failure - partial
tap
3/30/2019 210 0 Taggart Creek No 3241 New Renaissance Wy, 28208 Grease
3/31/2019 850 0 Campbell Creek No 5714Justins Forest Dr, 28212 Grease
3/31/2019 120 0 Clarke Creek No 15432 Northstone Dr Pipe Failure -
(Huntersville) contractor damaged,
mud in line
4/1/2019 1550 1550 McAlpine Creek No 4625 Montclair Av Pipe Failure
4/1/2019 74 0 Lake Norman No 7420 Waterview Dr (Cornelius) Pipe Failure
4/3/2019 146 0 Reedy Creek No 8636 Ballard Hills Ct, 28215 Debris In Line - dirt,
rocks, construction
debris
4/5/2019 100 0 Lake Wylie No 18250 Youngblood Rd N. Pipe Failure -
developer/contractor
installed tap
incorrectly
4/8/2019 68 _ 0 McAlpine Creek No 505 Riverwood Rd Vandalism - rebar
4/8/2019 20 0 Paw Creek No 1948 Crooked Creek Dr Roots
Wastewater Performance Report August 2019 28

Volume to
Volume Surface Water Fish
Date Surface Address Primary Cause
(Gallons) Water Name Kill?
4/10/2019 100 0 Lake Wylie No 14225 Goldenrod Trace Rd Pipe Failure -
contractor damaged
4/10/2019 74 0 Irwin Creek No 3557 Crestridge Dr Vandalism - cans
and golf club
4/14/2019 300 0 Lower Little Sugar No 6347 Park South Dr Roots
Creek Tributary
4/18/2019 3320 3320 Clear Creek No 5524 Crown Hill Dr. (Mint Hill) Other - contractor
bypass pump failure
4/22/2019 134 0 Stevens Creek No 6816 Hollow Oak Dr (Mint Hill) Pipe Failure -
contractor damaged
4/23/2019 1275 600 Briar Creek No 4025 Hiddenbrook Dr, 28205 Roots
4/29/2019 4800 4800 Irwin Creek No 3301 Barringer Dr Roots
4/29/2019 2940 2940 Briar Creek No 3719 Wendwood Ln. Debris In Line - rags
4/30/2019 150 150 Lake Norman No 18649 John Connor Rd, 28031 Pipe Failure
(Cornelius)
5/1/2019 480 480 Paw Creek No 8209 Moores Chapel Rd Pipe Failure
5/1/2019 40 0 Steele Creek No 13835 South Lakes Dr, 28273 Debris In Line - due
to cable bored
through the sewer
line.
5/2/2019 130 130 Irwin Creek No 115 N Sycamore St Debris In Line -
construction
concrete
5/3/2019 252 0 Lake Wylie No 15125 Red Canoe Wy Other - LPSS box
damaged by truck
Wastewater Performance Report August 2019 29

Volume to
Volume Surface Water Fish
Date Surface Address Primary Cause
(Gallons) Water Name Kill?
5/11/2019 238 0 Lake Norman No 21329 Bethel Church Rd Pipe Failure - LPSS
(Cornelius) valve damaged by
truck
5/11/2019 7500 7500 Irwin Creek No 2211 Genesis Park PI Other - contractor
bypass pump failure
5/12/2019 505 505 Lower Little Sugar No 3928 Severn Av Pipe Failure
Creek
5/13/2019 219 219 Upper Little Sugar No 100 E Craighead Rd. Grease
Creek
5/13/2019 524 524 Mallard Creek No 303 Sawyers Mill Rd Other - contractor
plug
5/13/2019 66 30 Irwin Creek No 1415 Hamilton St Grease
5/14/2019 70 70 Four Mile Creek No 2810 Bumble Bee Dr (Matthews) Roots
5/14/2019 1500 1500 Stewart Creek No 625 Gallagher St Pipe Failure 1
5/15/2019 720 0 Rocky River No 12618 Robert Walker Dr Pipe Failure-
contractor error with
manhole coupon not
cut out
5/16/2019 232 0 Steele Creek No 12933 Sam Neely Rd Roots
5/24/2019 33 0 Lower Little Sugar No 312 N Polk St(Pineville) Grease
Creek
5/29/2019 28 0 Clear Creek No 8930 Raven Top Dr (Mint Hill) Debris In Line
5/29/2019 940 940 Irwin Creek No 1916 Gilbert St Debris In Line - rags
5/31/2019 510 0 Mallard Creek No 10430 Wheatside Dr Grease
6/7/2019 645 645 Irwin Creek No 1810 Oaklawn Av Debris In Line
Wastewater Performance Report August 2019 30

Volume to
Volume Surface Water Fish
Date Surface Address Primary Cause
(Gallons) Water Name Kill?
6/8/2019 255 0 Campbell Creek No 6708 Nutcracker PI Grease
6/9/2019 103702 103702 Catawba River No 6003 Stephens Road- McGuire Lift Severe Natural
Station (Huntersville) Condition
6/11/2019 550 550 Clarke Creek No 8516 Beaver Creek Dr Debris In Line -
string and rags
6/14/2019 1480 1480 Campbell Creek No 6348 Green Vista Ct Grease
6/14/2019 2130 1100 Caldwell Creek No 17035 Glassfield Dr(Huntersville) Grease
6/16/2019 90 0 McMullen Creek No 7701 Fairview Rd Roots
6/25/2019 2750 2750 Back Creek No 8104 Knollwood Cr Grease
6/28/2019 38 0 Six Mile Creek No 15615 Donnington Dr Debris in Line -
gravel
TOTAL NUMBER OF FY2019 COLLECTION SYSTEM SPILLS: 162
Volume Safely Collected, Treated & Discharged During Fiscal Year 2019: 33,222,000,000 Gallons (99.98%)
Volume Spilled: 4,434,265.5 Gallons
Wastewater Performance Report August 2019 31

VI. Permit Compliance and Reporting Violations, by plant
Ashe Plantation WWTP -- NPDES Permit #NC0065749
MONTH PERMIT LIMIT VIOLATIONS REPORTING REQUIREMENT VIOLATIONS
July, 2018 NA NA
August, 2018 NA NA
September, 2018 NA NA
October, 2018 NA NA
November, 2018 NA NA
December, 2018 NA NA
January, 2019 NA NA
February, 2019 Monthly Avg. Ammonia NA
March, 2019 NA NA
April, 2019 NA NA
May, 2019 NA NA
June, 2019 NA NA
Irwin Creek WWTP -- NPDES Permit #NC0024945
MONTH PERMIT LIMIT VIOLATIONS REPORTING REQUIREMENT VIOLATIONS
July, 2018 NA NA
August, 2018 NA NA
September, 2018 NA NA
October, 2018 NA NA
November, 2018 NA NA
December, 2018 NA NA
January, 2019 NA NA
Wastewater Performance Report August 2019 32

February, 2019 NA NA
March, 2019 NA NA
April, 2019 NA NA
May, 2019 NA NA
June, 2019 Daily Max Fecal Coliform NA
Mallard Creek WRF -- NPDES Permit#NC0030210
MONTH PERMIT LIMIT VIOLATIONS REPORTING REQUIREMENT VIOLATIONS
July, 2018 NA NA
August, 2018 NA NA
September, 2018 NA NA
October, 2018 NA NA
November, 2018 NA NA
_December, 2018 NA NA
January, 2019 NA NA
February, 2019 NA NA
March, 2019 NA NA
April, 2019 NA NA
May, 2019 NA NA
June, 2019 NA NA
McAlpine Creek WWTF -- NPDES Permit#NC0024970
MONTH PERMIT LIMIT VIOLATIONS REPORTING REQUIREMENT VIOLATIONS
July, 2018 NA NA
August, 2018 NA NA
September, 2018 NA NA
October, 2018 NA NA
November, 2018 NA NA
December, 2018 NA NA
Wastewater Performance Report August 2019 33

January, 2019 NA NA
February, 2019 NA NA
March, 2019 NA NA
April, 2019 NA NA
May, 2019 NA NA
June, 2019 NA NA
McDowell Creek WWTP -- NPDES Permit #NC0036277
MONTH PERMIT LIMIT VIOLATIONS REPORTING REQUIREMENT VIOLATIONS
July, 2018 NA NA
August, 2018 NA NA
September, 2018 NA NA
October, 2018 NA NA
November, 2018 NA NA
December, 2018 NA NA
January, 2019 NA NA
February, 2019 NA NA
March, 2019 NA NA
April, 2019 NA NA
May, 2019 NA NA
June, 2019 NA NA
Oxford Glen Plantation WWTP -- NPDES Permit #NC0065384
MONTH PERMIT LIMIT VIOLATIONS REPORTING REQUIREMENT VIOLATIONS
July, 2018 NA NA
August, 2018 NA NA
September, 2018 NA NA
October, 2018 NA NA
November, 2018 NA NA
Wastewater Performance Report August 2019 34

December, 2018 NA NA
January, 2019 NA NA
February, 2019 NA NA
March, 2019 NA NA
April, 2019 NA NA
May, 2019 NA NA
June, 2019 NA NA
Sugar Creek WWTP -- NPDES Permit#NC0024937
MONTH PERMIT LIMIT VIOLATIONS REPORTING REQUIREMENT VIOLATIONS
July, 2018 NA NA
August, 2018 NA NA
September, 2018 NA NA
October, 2018 NA _ NA
November, 2018 NA NA
December, 2018 NA NA
January, 2019 NA NA
February, 2019 NA NA
March, 2019 NA NA
April, 2019 NA NA
May, 2019 NA NA
June, 2019 NA NA
Wastewater Performance Report August 2019 35

I. General Information
Name of Regulated Entity and Responsible Person
City of Charlotte
RECEIVED/NCDEQ/DWR
David Czerr, Interim Director
Charlotte Water (CLTWater) SEP 03 ifi19
Administration Division
Water Quality
4222 Westmont Drive Permitting Section
Charlotte, NC 28217
704-336-4407
Applicable Permits
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.
NPDES Permit
WWTP Number ORC Phone
Irwin Creek WWTP NC0024945 Michael Lingerfelt 704-336-2572
Mallard Creek WRF NC0030210 Henry Eudy 704-336-1024
McAlpine Creek WWMF NC0024970 Sandy Kim Neely 704-542-0736
McDowell Creek WWTP NC0036277 Darrell DeWitt 704-875-6443
Sugar Creek WWTP NC0024937 William Allen 704-432-2510
Ashe Plantation WWTP NC0065749 Jeremy Nance 704-634-3389
Oxford Glen WWTP NC0063584 Jeremy Nance 704-634-3389
In addition to those seven 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.
WW COLLECTION NCDWQ Permit Number ORC Phone
4100 W. Tyvola Rd. WQCS00001 Steven Wrobleski 704-432-2748
Wastewater Performance Report August 2019 1

Description of collection and treatment systems
Charlotte Water (CLTWater) collects wastewater from approximately 264,981
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 91 million gallons of wastewater is treated and discharged
each day from CLTWater plants. CLTWater contributes an average of 4.58 million
gallons a day (MGD) to the Rocky River Plant. CLTWater also treats roughly 2.45
MGD from Union County at CLTWater's McAlpine Creek Plant or roughly 4.6% of the
52.5 MGD treated at that plant.
More than 300 of CLTWater's 997 employees work to maintain 4,375.98 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 nearby creek.
Wastewater Performance Report August 2019 2