WQCS00036_Annual Report 7-1-2019 thru 6-30-2020_20200723

• RECEIVED
Jul 23 2020
NCDEQ/DWR/NPDES
S yST'PJVL PERFORMANCE
ANNUAL RPPOR f'FOR
CI-`y o j: xINCS .M O'.ITAIN
PILOT CRPPx 1 WWV'P
NCo 020737
AND COLLECTION S yS'PEJ4
' WQCSo 036
Jury oil 2019 - JU 30, 2020
11Page

Table of Contents
Page(s)
Responsible Parties Contact Information 3- 4
Opening Statement 5-6
Wastewater Collection 7-9
CoCCection Future Improvements to
Collections 'VioCations 11
1NWTP Process Description 12-15
'Violation/Deficiencies for WWTP 16
141WTP future Improvements 17
Notification and Certification Statement 18
1411WV'P Signature 19
2j

The responsible parties including contact numbers are
as follow:
'ro1 var Ji'L /OR
IVir. Scott .Heisler 704.734.4604
CITY NULNAGTR
rMrs. lviarilyn Sellers 704.734.4606
CITY CO'WWCIJ
34r. 341ke Butler 704.734.0333
.Mr. Jimmy "West 704.734.0333
311r. Tommy Hawkins 704.734.0333
.Mr. Xeith IVifiller 704.734.0333
34r. Jay Rhodes 704.734.0333
Nir. David Allen 704.734.0333
34s. Annie Thombs 704.734.0333
Wage

14751.rER RESOURCE DIRECTOR
.Mr. Ricky Duncan 704.734.4525
WATER RESOURCES SUPERIIMITTIDENT
Mr. Don Spencer 704.477.2928
1111Ng-P SUPERVISOR,/ORC
.Ms. RicheCle Meek 704.739-7131
COLLECTION SyS7E M SUPERVISOR
J%lr. ,Aaron iCondzieCski 704-472-5868
PRETREATMENT COORDINATOR
Mr. Jason Davis 704-739-7131
FACILITY OPERATORS
(Contact Number704.739.7131)
Mr. Lee DougCass (Back-Up ORC/Operator)
Mr. Gary Beason (Operator)
Ivir. Asa Harris (Operator)
Ivis. Suzanne .-larris(Lab .Analyst)
4IPage

The City of Xings Mountain is pleased to present the
Annual-Wastewater Treatment System Report for
fiscal year 2020. As a requirement of the City's
Collection System Permit Number WQCS00036, issued
by the State of North Carolina, the City of zings
Mountain is required to report the System
Performance to all of its customers on an annual basis.
This report provides information about the
performance of the City of.zings Mountain Pilot Creek
Wastewater Treatment Facility, in addition to the
performance of the City's wastewater collection system
for the period of July al, 2019 through June 3o, 2020.
All of the information contained in this report is
accurate and complete to the best of my knowledge.
-Rickel-le Meek
5IPage

'Wastewater systems have evolved considerably from
early systems in the 1800 s. Although the purpose has
always been to collect human waste and transport it
away from urban areas to protect human health, early
systems merely transported the wastewater to a
nearby stream, where it was discharged today,
wastewater systems are not only expected to protect
human health, but to protect the environment as well
In 1972, the U.S. Congress passed landmark legislation
entitled the "Clean 'Water Act" which insured
environmentalprotection as aperformance benchmark
for all wastewater systems. Long before the passage of
this act, and every day since, the protection of public
health and the environment have been the operating
standard of the City of zings .Mountain's wastewater
system.
To learn more about the City's wastewater collection
system or the wastewater treatment plant,please
contact the City of icings .Mountain, 'Water Resource
Department or visit the City's web site at
www.cityofkm.com.
61Page

147.ALSTIVAT'TR COLETCTZOW
The City of icings .Mountain owns and operates its
Collection System and-Wastewater 'Treatment Facility.
The City of.zings .Mountain serves a population of
approximately 10,933 people and4,565 water Customers
which consist of an average of 4,289 Residential and
276 Commercial.
The Collection System operates under the permit
#1W2.CS00036 issued by the State of North Carolina.
On average the City collects 1,697,00o gallons of
wastewater (55°o Domestic/Commercial and45%
Industrial Process) each day and transports it through
113 miles of gravity collection lines, 37 miles of force
mains and 35 pumping stations, and approximately
2,26o covered manholes, to the Pilot Creek -Wastewater
'Treatment Plant.
The City's goal is to have zero spills and overflows from
its Collection System. Unfortunately, because pumping
stations are mechanical devices and sewer collection
systems are subject to clogs from grease, roots,
construction debris and litter, all systems are subject to
spills and overflows.
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WASTEWATER TER COLLECTION
In order to help prevent spills and overflows, the City
uses television equipment to visibly inspect lines and
routinely flushes lines to help prevent future problems.
Since June 2019, the collection department has cleaned
2o5,o89 feet of sewer lines and 5,328 feet of lines have
been videoed In addition, a Sewer Overflow Response
Plan has been prepared that identifies equipment,
supplies and on-call employees that are available to
help mitigate spills andprocedures to follow should an
overflow occur.
The City of Icings Mountain Wastewater Collection
System have had 9 spills between July 2019 and June
2020.
The City of Icings lvlountain's Collections Department
has replaced the Beason Creek pump station going from
woo gpm to i60o gpm. Anew bar was also installed at
this location. The Collection Department replaced 8o
feet of 24 inch sewer main lines and installed two new
manholes.
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• PUBLIC isiOgICTS
Residents can help minimize future overflow events by
reporting unauthorized uncovering of sewer manholes,
improper disposal of materials into manholes,
vandalism of manhole structures, any observed
overflow or spills, and strong sewage odor in or around
sewer lines to the City of Kings .Mountain at 704-734-
0333
The City of zings Mountain's website contains a flyer
for the public stating the harm of pouring oil and
grease into drains which Cead to the collection system.
Publication:
_A copy of this Annual Report may be obtained by
contacting the City's "Water Resource Department or
visiting the Cities website.
9IPage

W STn/VATER COLLECTIONS DEPARTMENTS
TuRE IIMPROTEMENTS
ACC capital improvements have been put on-hold clue to
Coyid19.
10IPage

Collection System Monthly 'Violations
,July 2018 - June 2O19
July 2o19 Total SSO's: None TotaCGatCons Spilled o
August 2o19 Total SSO's: None TotaCGaCCons Spilled o
Sept. 2019 Total SSO's: One Total-gallons Spilled 100
Oct. 2o19 Total SSO's: None Total gallons Spilled o
Nov. 2019 Total SSO's: None Total gallons Spilled o
Dec. 2019 Total SSO's: One Total-gat-Cons Spilled: 9,200
Jan. 2020 Total SSO's: Two Total gallons Spilled 27,500
Feb. 2020 Total SSO's: Four Total-gallons Spilled: 3,113,600
it/larch 2020 Total SSO's: None Total gat-Cons Spilled: o
April2o2o Total SSO's: One Total gallons Spilled: 330
Nlay 2020 Total SSO's: None Total-gat-Cons Spilled o
June 2020 Total SSO's: None Total-gat-Cons SpiCCed o
111Page

The State of North Carolina regulates the treated
wastewater which is discharged into the Buffalo Creek.
The (NPDES) Permit Number for this facility is
NCoo2o737. This facility is located off U.S. Highway 74
Bypass, 'West of zings 3vlountain (Cleveland County).
PROCESS DESCRIPTION'
'When wastewater is discharged-from a home,
industry, etc.,flow travels through miles of
underground lines by gravity or conveyed by pumps.
This process is called a Collection System.
Once the wastewater enters the facility it contains
organic and inorganic material-which, at this time,
consist of approximately forty percent (45°0) Industrial
'Wastewater.
The wastewater is lifted approximately thirty two
(32)foot by one of two (1 of 2) SpiralScrew Pumps.
'Wastewater then travels through a (IvlechanicalStep
Feed) Bar Screen, where debris is removed; compacted,
and discharged into a dumpster for disposal It then
travels through a ParshallFlume with a twenty four
(24) inch throat, which includes a staff gauge, and a
flow meter, all-for measuring the incoming flow. . 4 24
12 IPage

hour circular chart,p3-I meter is also installed at the
Influent. As the wastewater travels through the throat
of the Tars ha II ylume a flow proportional refrigerated
twenty four (24) hour composite sample is collected for
analysis.
The wastewater then enters a Splitter Box
(Diversion Box) that splits the flow into three (3)
.Aeration Basin's based on their design flow. Sodium
Hydroxide (5o°o Caustic Soda), is added at the diversion
box to adjust the incoming pH and alkalinity to the
aeration basins. Once the fresh wastewater enters the
aeration basin the organic material is consumed by the
microorganism. The aeration basins are equipped with
floating diffusers, which supplies oxygen and mixing
for the microorganism to survive. The detention time
in these basins are approximately four (4) to seven (7)
days. This process is called activated sludge.
The activated sludge then enters at the center well
of the secondary circular clarifier(s), which is where the
microorganism settle at the bottom to digest the
organic material that was consumed in the aeration
basin. The detention time in these cCarifier(s) are
approximately two (2) to four (4) hours. As the
activated sludge settles in the clarifiers, aportion of it
is either returned to the head of the aeration basin
13 IPage

•
(RAS) or wasted(WAS) to the aerobic holding tank for
disposal by pumps.
As the treated wastewater leaves the clarifier's, it
then enters a Chlorine Contact Basin, where Chlorine
Chas is injected to kill the disease causing bacteria (Fecal
Coliform), before leaving the facility. These contact
chambers are equipped with baffles (walls) to provide
enough contact time. The flow exit's these chambers
over a rectangular weir or a 'V Notch weir, which has
a staff gauge and a flow meter that sends a signal to a
totalizer.
As the three (3) effluent flows combine into a
manhole, Sulfur Dioxide qas is injected to remove the
residual chlorine. The flow continues to travel to the
plants effluent flow proportional twenty four (24) hour
refrigerated composite sampler, where a sample is
collectedfor laboratory analysis. A. new flow meter has
been installed at the final effluent of the facility.
This facility is also equipped with a waste pump
station that has two (2) grinder pumps that conveys the
floatable solids from the clarifiers back to the head of
the Influent.
.Also included is a wash water pump station that
pumps treated wastewater to the Belt ,Filter press
14IPage

• which is used to operate our 2.2 meter Xlamp Press.
This Xlamp Press is used to dewater the waste
activated sludge. This press produces a dry sludge cake
of approximately 15 to 18°0. A_ dry polymer is used in
the polymer system that mixes with the waste sludge to
form a floc so the water can drain through the pores in
the belts.
The disposalprocess includes two (2) aerobic
holding tanks which are gravity fed to the disposal
sludge pump station. These pumps convey the waste
sludge to the belt filter press for operation.
Once the dry cake leaves the belt filter press, it
travels up a conveyor belt, through a hopper, into a
tandem truck and is hauled to the Cleveland County
Landfill for final disposal. This is a lined landfill.
15IPage

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"VIOCATI ONS/D TyICITNCIES
.FOR
JULy 01, 2019 - J' NE 30, 2020
During this period from July 2019 to June 2020,
there were no violations reported for Toxicity.
All Notice of violations have been issued to industries
exceeding SOU permit limits.
1�VAST V.ATPR MP.AL71'34 Pw'I J PLANT'
I.7111PROTT M2 JV'IS
The City of icings ii4ountain's 'WW'P has completed or
in the process of improvements to its system to include:
➢ SC 4DA system at the facility updated
➢ .Additional-pH and D.O. monitoring equipment has
been purchased and will be installed in all aeration
basins by the end of 2020.
17 I Page

➢ .-luffstetler group (contractors) are repairing aCC
major components on #4 clarifier and will replace
weirs on #3 clarifier once #4 project is complete.
➢ ,SUTURE PLANS: Installing two (2) mixers in each
of the three basins to avoid dead=spots, depending
on Covid-lg pandemic.
NO FICATIOJ[
This .Annual Report is available upon request. If
there are any questions concerning this report,please
feeCfree to contact the Supervisor/ORC at the 1W1/ViP
(Pilot Creek).
18 IPage

CERTIFICATION STATTJvITJ' 'r
I certify that this report is accurate to the best of
my knowledge.
1411/VIP Supervisor/ORC
RicheCCe Meek
ORC/Supervisor
June 26, 2020
19 IPage