WQCS00280_Pretreatment Annual Report_20190305

RECEIVEDINCDEQIDWR
MAR 5 2019
Non -Discharge
Permitting Unit
Town ofGiberty, NC
Wastewater Treatment Plant
and
Collection System
2018.AnnualReport

Table of Contents
I. General Information
Name ofKcgulated Pacil
Responsible Persons
Permit Number
Permit Limit Violations 2018
Motoring and Reporting Violations
Overflows at th W stewater Treatment Plant
Qverflows in the Collection System
Description of Corrective Measures
III. Notification
IV, Certification

I. General Information
Name of Regulated Facility
Town of Liberty
The Town of Liberty is permitted through the State of North Carolina to operate a spray
irrigation wastewater treatment facility and operate the wastewater collection system.
Responsible Persons
Elix T. Fike is the treatment plant operator responsible in charge (ORC).
Kevin Coble is the collection system operator responsible in charge (ORC).
William Doerfer, Town Manager is the responsible person for the Town of Liberty facilities and
can be contacted at [phone].
Permit Number
Wastewater Treatment Facility Permit Number: WQ0003090
Wastewater Collection System Permit Number: WQCS00280.
The wastewater treatment facility is a spray irrigation system located at 7178 East I ighfill
Avenue. The treatment process consists of a manual bar screen, a lagoon, chemical treatment,
and effluent pump station. The Town is permitted for 550,000 gallons per day of sewage. The
sewage enters the plant and goes through the bar screen which removes all solids. The solids
are removed and disposed of by Allied Waste. The flow then proceeds to a three (3) pump
influent station that pumps the sewage to the lagoon. The lagoon is a natural occurrence system
that separates the remaining solids from the liquid. The solids settle to the bottom of the lagoon
with the water staying to the top. After a 45 day detention time, the water is then treated with
chlorine to remove all fecal coliform bacteria. The next process is to spray the effluent onto the
spray fields. We maintain one hundred eighty (180) acres of spray field. The spray fields are
broken down into eight (8) zones. The Town of Liberty contracts the cutting and removal of the
fields for hay.
The Town of Liberty collection system consists of approximately 25 miles of sewer lines. The
size amounts vary in size from four (4") inch to twelve (12") inch in diameter. The collection
system also consists of eight (8) lift stations that carry the wastewater to the treatment facility.
Operators make daily checks on the outfall lines and lift stations. The public works crew along
with contracted maintenance is responsible for the mowing and clearing of the outfall lines for
easy access in case of any emergencies.

II. Performance
The Town had a Compliance Evaluation Inspection of the Wastewater Treatment Plant on August
6, 2018. The inspection mostly reflects compliance with Permit No. WQ0003090; however, the
following items were noted to require attention:
1. The current permit is set to expire on April 30, 2019. Permit condition I. (2.) requires the
Permittee to request renewal, on official Division forms, no later than sic months prior to
expiration. Please submit a permit renewal request no later than October 1, 2018.
a. The Town has submitted and is currently working with DWR permitting office to
complete our application for renewal of our permit set to expire on April 30,
2019.
2. The well supplying water to the on -site restroom facilities is within the compliance
boundary, and fails to meet setbacks to storage and treatment units as required by Permit
Condition 11. (1l) (a.). Permit condition II (9.) states in accordance with 15A NCAC 02L
.0107(d), no wells, excluding Division approved monitoring wells shall be constructed
within the compliance boundary except as provided for in 15A NCAC 02L .0107(g). This
office is in discussion with permit staff in Raleigh to determine what potential resolutions
may be available related to these matters to achieve compliance with permit
requirements.
a. The Town and Compliance staff have worked with the permitting office as part of
the permit renewal to revise the compliance boundary in order to bring the well
into compliance with all permit conditions and 15A NCAC 02L .0107(d).
3. The treatment units (specifically the bar screen & influent lift station) do not meet the
setback of 50 feet to any property line as required in Permit Condition Il. (11) (b.).
a. We are working with the Compliance and Permitting Staff on this issue.
4. Several overhanging tree branches were observed around the perimeter of the irrigation
fields, increasing the potential that an evenly distributed spray pattern may me impeded.
Permit Condition (III). (3.) states a suitable year-round vegetative cover shall be
maintained at all times, such that crop health is optimized, allows for even distribution of
effluent and inspection of the irrigation system. Also, Permit Condition III. (4.) states
adequate measures shall be taken to prevent effluent ponding in or runoff from the
irrigation site. Adequately maintain the surrounding vegetation, as well as the on -site
vegetation to promote even distribution of effluent, and prevent ponding and/or runoff.
a. This issue has been resolved.
5. The 2017 Standard Soils Fertility Analysis (SSFA) results contained a lim
recommendation of 0.5 tons/acre be applied to Field 23A. At the time of this inspection,
the ORC stated that there had not been any lime amendments performed. Permit
Condition 11I (3.) states a suitable year-round vegetative cover shall be maintained at all
times, such that crop health is maintained Adherence to recommended soil amendments,
indicated by SSFA results, are integral in promoting optimum vegetative health.
a. The ORC has made arrangements for the application of lime in accordance with
the SSFA results be applied as soon as possible.

6. Preliminary calibration measurements indicate application rates measured at the impact
sprinkler heads (approximately 825 gpm) exceed design application rates (7.1 gpm). This
discrepancy suggests the potential for runoff and/or over -application exists. Verify the
total number of impact sprinklers in each zone and gallons per minute applicated per
impact sprinkler to determine the accuracy of the reported total gallons applicated per
event. Please perform the verification and complete calibration as soon as possible'.
Permit Condition M. (6.) states that all irrigation equipment shall be tested and calibrated
at least once per permit cycle. Calibration of all irrigation equipment shall be performed
no later than April 30, 2019.
a. This issue is being resolved and compliance will be achieved by the deadline.
7. It was discovered during this inspection, that water levels in the monitoring wells are
being erroneously reported. To accurately report water levels for each monitoring well,
the depth to water in each well, measured from the surveyed point on the top of the
casing shall be reported per Attachment C. As currently explained, the depth of water in
the monitoring well (water level minus total well depth) has been inaccurately reported as
a water level.
a. This issue has been resolved.
Vegetation was observed growing on the liner of the facultative lagoon. If vegetation is
allowed to continue to grow, roots could penetrate the liner compromising the liner's
integrity. It is strongly recommended that the vegetative growth on the lagoon liner be
prevented in order to reduce the possibility of adverse impact to the liner.
a. This issue has been resolved.
A significant amount of Johnson grass was observed growing in the irrigation fields.
Because Johnson grass is considered a weed, it does not currently have an accepted
realistic nitrogen rate in North Carolina. If Johnson grass is allowed to become the
predominance crop in the irrigation fields, application rates will need to be re-evaluated
to ensure appropriate application rates are utilized. This could result in the facility
becoming nutrient limited as opposed to hydraulically limited, necessitating the need for
additional irrigation area. The current accepted plant available nitrogen (PAN) rate is
based on fescue being the target crop.
a. We have been taking measures to further limit the growth and spread of Johnson
grass through various measures and will continue to work towards eradication.
All items continue to be monitored by the ORC.
It is our goal to continue to find ways to improve the operations of the Wastewater Treatment
Facility and Collection System as we go forward.
Permit Limit Violations 2018
Month Violation _
January I NONE
Febru NONE
March NONE
April NONE
NONE

ne
NONE
l
NONE
u st
r
NONE
teml
NONE
ctober
NONE
November
NONE
December
NONE
Monitoring and Reporting Violations
violation
Corrective Measures. All measures have been met.
None
N/A
N/A
None
Overflows at the Wastewater Treatment Plant
Date
Amount(gallon)
Cause
12/28-12/31/2018
516,000*
1/1 due to rainfall of 1.6" in 1 day
12/20-12/24/2018
837,000*
1/1 due to rainfall of 2.3" in 1 day
12/20/2018
10,800*
1/1 due to rainfall of 1.8" in 1 day
M due to rainfall of 0.7" and snow of 10" in
1 da
12/10-12/18/208
1,212,000*
unknow
12/10/2018
I/1 due to rainfall of 0.7" and snow of 10" in
l day
VI due to rainfall of 1.7" in 1 day
11/15-11/18/2018
1,222,650*
11/5/2018
36,000*
1/1 due to rainfall of 2.5" in 1 day
9/17/2018
342*
M due to rainfall of 6.5" in 1 day
8/12/2018
300*
l/I due to rainfall of 3.5" in 1 day
8/12/2018
600*
I/I due to rainfall of 3.5" in 1 day
1/30/2018
400*
Epump failure
*This spill spanned 12/28/2018 - O1/07/2019 - estimated gallons spilled in 2018 only
at 100 gallons per minute for 86 hours.

Overflows in the Collection System
Date
Amount (gallons)
Location
Cause
1/28/2018
600
Kinro Rd Manhole #500B
III
2/4/2018
205
Kinro Rd Manhole #500B
IQ
8/6/2018
4,260
Kim Lift Station
Pipe Failure (Break)
9/4/2018
600
Newberry outfall Manhole #100
Roots
9/16/2018
10,500
W. Kime Ave LS Manhole #400
1/1 and severe natural
condition
9/16/2018
10,500
W. Kime Ave Manhole #401
14 and severe natural
condition
9/16/2018
28,560
Johnson St LS Manhole #301
1/I and severe natural
condition
9/16/2018
25,500
Starmount Ave Outfall Manhole
#601
I/I and severe natural
condition
9/16/2018
21,600
E. Lowe Ave Manhole #506A
VI and seven; natural
condition
9/16/2018
13,680
Kinro Rd Manhole #500B
1/1 and severe natural
condition
9/17/2018
1,800
E. Butler Ave Manhole #23R
Roots and severe
natural condition
9/17/2018
2,400
E.Brookwood Ave Manhole#12
VI and severe natural
condition
9/17/2018
2,400
E,Brookwood Ave Manhole #15
M and severe natural
condition
10/11/2018
900
Kinro Rd Manhole #500B
III and severe natural
condition
M
VI
1/1
11/5/2018 900 E.Lowe Ave Manhole#506A
11/5/2018 1,200 Kinro Rd Manhole #500B
11/5/2018 1,200 W.Kime Ave Manhole#401
11/5/2018
1,200
W.Kime Ave LS Manhole #400
I/I
11/5/2018
1,200
Johnson St LS Manhole #300
1/1
11/5/2018
2,400
Starmount Ave outfall Manhole
#601
I/I
11/12/2018
8,400
E.Lowe Ave Manhole #506A
IR
11/12/2018
4,800
Kinro Rd Manhole #500B
M
11/12/2018
4,800
Stannount Ave outfall Manhole
#601
M
11/12/2018
1 3,780
W.Kime Ave Manhole #401
1/1

11/12/2018
4,830
W. Kime Ave LS Manhole #400
IR
11/12/2018
1,350
Johnson St LS Manhole #300
UI
11/15/2018
1,560
Kinro Rd Manhole #500B
IR
11/15/2018
3,600
Starmount Ave outfall Manhole
#601
UI
11/15/2018
720
E.Lowe Ave Manhole #506A
UI
12/14/2018
4,200
Kimo Rd Manhole #500B
UI
12/20/2018
7,500 KLowe Ave Manhole #506A
12,000 Kinro Rd Manhole #500B
UI
12/20/2018
UI
12/20/2018
2,160
WKime Ave Manhole #401
1/I
12/20/2018
4,050
W.Kime Ave LS Manhole #400
M
12/28/2018
2,880
Kinto Rd Manhole #500B
M
12/28/2018
975
E.Lowe Ave Manhole #506A
I/I
12/28/2018
600
W.Kune Ave LS Manhole #400
1/I
12/28/2018
600
W.Kime Ave Manhole #401 1/I
Description of Corrective Measures
The Town of Liberty has worked hard to resolve the wastewater spills at the treatment plant and
in the collection system. The Kinro Litt Station and the Kline Street grids have been the focus of
smoke testing in previous years due to the significant overflows at these locations.
The Town has experienced significant problems this past year related to Hurricane Florence and
Tropical Storm Michael that hit us within one month of each other. In addition, this past year has
seen more than twice the amount of rainfall we normally see on an annual basis.
We have submitted a very competitive grant application for $2M in funding from the Division of
Water Infrastructure through the CDBG-I program. In addition, we have been awarded a
$100,000 grant from the Golden LEAF Foundation to complete a comprehensive inflow and
infiltration study throughout our collection system in order to identify the worst affected lines.
We have been working with the Environmental Finance Center (EFCN) through the UNC School
of Government to evaluate the financial health of the Liberty Enterprise funds, as well as conduct
a comprehensive rate analysis. The Water and Sewer funds are in great shape. We have the
capacity and ability to fund small repairs, as well as the capacity to seek grant and low -interest
loan funding to complete larger projects.

Over the next year the Town will be rehabilitating and / or replacing as much sewer fine as
possible and we will continue to seek fimding sources that will not burden the ratepayers.
The Town of Liberty is committed to providing sustainable and affordable wastewater collection
and treatment services that contribute to the enhancement and livability of the Town residents
and water and sewer ratepayers. The service we provide will continue to support the mission.
.Liberty: A Great Place to Live
III. Notification
The Town of Liberty will add a notation on the next water bill about the availability of this
report. The report will be at Liberty Town Hall for viewing at 239 South Fayetteville St.
The report will also be posted on the Town Website at hup;//www.libcrt)-nc.cor , under
Departments, Public Works, Wastewater Department.

N Certification
2018 Annual Report Certification Form
System Name: ___Town of Liberty___
Wastewater Permit # MM003090 Collection Permit # WOCS00280
Report Year: = Population Served: �2. M
The wastewater system operator named above hereby confirms that all provisions under the House Bill
1160 requiring the development of distribution of, and notification of an annual report have been executed.
Further, the system operator certifies the information contained in the report is correct and consistent with
the compliance monitoring data previously submitted to the primacy agency by their NC certified
laboratory.
Certified by: Name: William Doerfer Me: Town Maoan_er
Signature: /X 1
Phone #: [phone] ` Date: Februar► 26, 2019
10