4602_HertfordTS_Assessment_20210628

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MUNICIPAL ENGINEERING
SERVICES COMPANY, P.A.
GARNER, NC AND BOONE, NC
June 28, 2021
Ms. Sherri Stanley
NCDEQ Solid Waste Section
217 West Jones Street
Raleigh, NC 27603
Sent via email to: [e-mail]
RE: Transfer Station Assessment Report
Hertford County Transfer Station
Permit No. 4602T-TRANSFER-1995
Winton, North Carolina
Dear Ms. Stanley,
On behalf of Hertford County, I am attaching the completed assessment report for the referenced facility,
required to be submitted to the North Carolina Division of Waste Management, Solid Waste Section on or
before June 30, 2021. The attached report was completed in accordance with the requirements at Title
15A, North Carolina Administrative Code, Subchapter 13B, Rule .0400 — TRANSFER STATIONS,
specifically Rule .0401(b).
Please contact us via phone or email below if you require additional information.
Sincerely,
Municipal Engineering Services Company, P.A.
s. I A�y z4vwwt'
S. Jay Zimmerman, L.G.
[e-mail]
Attachment
cc: Ms. Judy Baker - Hertford County
68 Shipwash Drive, Garner, NC 27529 Phone: [phone]
License No. C-0281
www.mesco.com
Fax: [phone]

Transfer Station Assessment Report
Prepared for
Hertford County Transfer Station
Permit Number: 4602T-TRANSFER-1995
Winton, North Carolina
Hertford County
Prepared by:
Municipal Engineering Services Company
PO Box 97
Garner, NC 27529
Corporate License Number: C-0281
S. J ay Zro~rwuuti
S. Jay Zimmerman, P.G.
Senior Project Manager
June 21, 2021
MUNICIPAL ENGINEERING
SERVICES COMPANY9 P.A.
69 SHIPWASH DRIVE, GARNER, NC 27529 - PHONE: [phone]
P.O. Box 349, BOONE, NC 28607 • PHONE: [phone]
LICENSE NumEER: 0-0261

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TABLE OF CONTENTS
1 INTRODUCTION AND OBJECTIVE
1.1 Transfer Station Facility Description.......................................................
1.2 Source, Type and Quantity of Wastes ......................................................
2 FACILITY ASSESSMENT
2.1 General.....................................................................................................
2.2 Assessment of Transfer Station Building Infrastructure ..........................
2.2.1 Transfer Station Building Observations .........................................
2.2.2 Tipping Floor and Push Wall Observations ...................................
2.3 Assessment of Roadways and Parking Areas ...........................................
2.3.1 Observations..................................................................................
2.4 Assessment of Leachate Collection and Storage System .........................
2.4.1 Observations..................................................................................
3 CONCLUSION
4 RECOMMENDATIONS
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FIGURES
Figure 1---------------------------------------------------------------------- Hertford County Transfer Station Facility Location Map
Figure 2_____ _________ _________ _________ _________ _________ ______________________________Hertford County Transfer Station Site Map
APPENDICES
Appendix A______
Hertford County Transfer Station Facility Photos
Transfer Station Facility Assessment Report June 21, 2021
Hertford County Transfer Station Page i

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Transfer Station Facility Assessment Report June 21, 2021
Hertford County Transfer Station Page ii

1 INTRODUCTION AND OBJECTIVE
This Transfer Station Facility Assessment report has been prepared on behalf of Hertford County for
submittal to the North Carolina Department of Environmental Quality (DEQ), Division of Waste
Management (DWM) as required by North Carolina Administrative Code, Title 15A Subchapter 13B
Section .0400 — Transfer Stations (15A NCAC 13B .0400). Transfer stations that have an effective
permit with the DWM prior to the readopted date of the above reference rule on January 1, 2021, must
complete an assessment report demonstrating compliance with the rules and permit applicable to the
transfer station, and submit the report to the DWM no later than six (6) months from the effective date of
the regulations, or by June 30, 2021.
The assessment report must include an assessment of the status of the building, access roads and parking
areas, as well as the leachate collection system of the current operations compared to the design of the site
stated in the permit, the plans incorporated into the permit and the rules of Section 13B .0400. The report
must also contain any recommended actions needed to bring the transfer station facility into compliance
with the rules.
Upon receipt of the report the DWM must notify the owner or operator of the transfer station of any
changes required to comply with the rules, within twelve (12) months from their receipt of the report. The
owner or operator of the transfer station must then complete the required actions to bring the facility into
compliance within three (3) years from receipt of the notification from the DWM. In the event the actions
required to be taken might exceed three (3) years to complete, the owner/operator may request an
extension. Extension requests must include a reason and supporting information for review by the DWM,
who will then make a written determination to approve or not approve the extension request.
Municipal Engineering Services Company, P.A. (MESCO) performed the facility assessment on behalf of
Hertford County, on June 10, 2021, which was necessary to complete the required report for submittal to
the DWM. The report includes an assessment of the status of the buildings, parking and roadways, and the
leachate collection system components compared to the site design stated in the permit, the plans and
applicable rules. Documents referred to during the assessment and completion of this report include the
following:
• Solid Waste Management Facility Permit to Operate, Life -of -Site Permit No. 4602T-
TRANSFER-1995, issued April 10, 2019, with an expiration date of December 15, 2055, File
Identification Number (FID) 1319054.
• Hertford County Solid Waste, Hertford Transfer Station Operations Plan, FID 1260701.
• The rules governing transfer stations at North Carolina Administrative Code Title 15A,
Subchapter 1313, Section .0400 — Transfer Stations.
1.1 Transfer Station Facility Description
The Hertford County Transfer Station Facility (Permit No. 4602T-TRANSFER-1995) is located at 227
Mt. Moriah Road, Winton, North Carolina. Hertford County received their Life -Of -Site (LOS) permit
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Hertford County Transfer Station Page 1

effective April 10, 2019, with an expiration date of December 15, 2055. The Operations Plan indicates the
transfer station is open Monday - Friday from 8:30 am until 5:00 pm, and is closed New Year's Day,
Matin Luther King, Jr. Day, Good Friday, Memorial Day, Independence Day, Labor Day, Veteran's Day,
Thanksgiving Day and the day after, Christmas Eve, Christmas Day and the day after Christmas. It was
noted that the hours of operation on the Operations Plan differ slightly from the hours posted at the
entrance to the facility. A recommendation has been made to reconcile the difference and modify either
the plan or signage.
The facilities consist of the transfer station and associated buildings, recycling and reuse areas for specific
types of wastes, access roads and a parking area, and a leachate collection system and storage tank. A
map showing the location of the transfer station facility is in Figure 1.
1.2 Source, Type and Quantity of Wastes
The facility receives solid wastes from residential, commercial and a limited amount from industrial
waste sources, and from privately owned vehicles, throughout Hertford County. The facility is permitted
to handle non -hazardous, solid waste generated within Hertford County for transfer to the East Carolina
Regional Landfill located in Bertie County, North Carolina. Any hazardous wastes, liquid wastes and
other prohibited waste materials found at the transfer facility are removed and returned to the waste hauler
for proper disposal.
The transfer station facility also accepts other sources of waste according to the most recent operations
plan as follows:
• Used tires are accepted and placed in a storage trailer until full, at which point they are taken to
the contracted tire recycling firm.
• Used oil is collected in an aboveground 200-gallon storage tank, where it is periodically
monitored and when full, pumped for recycling/disposal.
• White goods are accepted on site at a designated location. Appliances, some of which contain
Freon, are accepted and stored before shipping to a metal recycling facility. Freon is properly
recovered by a contractor prior to moving an appliance to the designated area for storage until
pickup.
• Construction and demolition debris is accepted and placed in a designated area for disposal.
• Electronics are collected, staged on a concrete pad before moving into a building for storage until
transported to a recycler for further processing.
• Asphalt shingles are accepted at a designated area, and are limited to recyclable tear off shingles
that do not carry greater than 1% asbestos.
• Yard trash defined as grass, brush, leaves and similar vegetative material is accepted and staged
at the designated location.
According to the most recent Annual Report for the State Fiscal Year 2019-2020, the facility received
6,102.88 tons of solid waste, or approximately 508.6 tons of waste per month, which was transferred to
the East Carolina Environmental Regional Landfill in Bertie County. Approximately 259.49 tons of solid
waste was recovered through recycling and reuse, and disposed of through various vendors. The amount
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Hertford County Transfer Station Page 2

of waste received in the preceding FY for 2018-19 totaled 6,092.94 tons, or approximately 507.6 tons per
month, which was transferred to the landfill. Approximately 536.39 tons was recovered through recycling
and reuse. For the FY 2015-16 Hertford County received a total of 2,120.2 tons of solid waste through
the transfer station, or approximately 176.7 tons of waste per month. This waste was also transported to
the East Carolina Environmental Regional Landfill in Bertie, NC
The amount of solid waste processed annually through the transfer station has increased by 3,982 tons
based on a review of select annual reports over the past five (5) fiscal years. Despite the increase the
facility appears to be able to accommodate and properly manage the volume of solid waste received.
2 FACILITY ASSESSMENT
2.1 General
On June 10, 2021 MESCO staff and staff from Hertford County Solid Waste conducted a site visit to
assess the condition of the transfer station associated with Permit No. 4602T-TRANSFER-1995, as
required by 15A NCAC 13B .0400. The assessment consisted of a review of the permit and operations
plan, site layout, the transfer station buildings and associated structures, parking and roads, and the
leachate collection system and associated components to verify consistency with the current permit,
operations plan and applicable rules. A site map noting the location of the buildings, roads, parking areas
and other structures referenced in the assessment, that are considered part of the permit, is provided in
Figure 2.
2.2 Assessment of Transfer Station Building Infrastructure
The assessment of the building and other infrastructure included visual observations of the condition of
the building siding, tipping floor, and push wall. Observations included the notation of holes or damage to
the building siding that might allow entrance of precipitation into the transfer station building or the
escape of solid waste. The assessment also noted the condition of the tipping floor and push wall
including evidence of significant cracks, pitting, wear or scouring of the tipping floor, and the presence of
exposed rebar evident in the tipping floor and push wall. Any damage or concerns were documented and
photographed for inclusion into the report, and to support recommendations for any work necessary to
improve the overall condition of the facility.
2.2.1 Transfer Station Building Observations
At the entrance to the transfer station facility is the scale house and office building. Adjacent to the scale
house is the storage trailer for used tires. Staff within the scale house manage the vehicle traffic, including
the weighing of vehicles that enter and exit the facility. Weight tickets are used by the Hertford County
staff for billing purposes.
The transfer station building consists of a roofed metal building open on all four (4) sides, encompassing
the tipping floor composed of a concrete slab, with access on one side to the tipping floor for vehicular
traffic to dispose of solid waste. On the floor of the transfer station was a large compactor into which the
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Hertford County Transfer Station Page 3

solid wastes are disposed by a front-end loader, and compacted into trailers picked up as needed for
disposal at the landfill by the contracted hauling company, GFL.
The building structure includes guttering around the perimeter of the roof line that collects precipitation
and directs any collected stormwater away from the facility and towards engineered stormwater control
features. The open sides of the building have the potential to allow the infiltration of precipitation, or
escape of solid waste on windy days.
The facility buildings, including the transfer station and scale house/office buildings located at the site,
are consistent with the most recent Operations Plan, and LOS Permit to Operate, April 10, 2019.
2.2.2 Tipping Floor and Push Wall Observations
The transfer stations tipping floor is used to facilitate the sorting and consolidation of wastes received
from waste haulers and residential customers. Vehicles are weighed at the scale house upon entering and
leaving the facility to determine the weight of solid waste received for billing purposes.
All waste management activities are occurring on an impervious concrete surface. Waste is deposited
onto the concrete tipping floor, inspected for unacceptable wastes, and then collected with a front-end
loader for disposal in a forty (40) yard onsite waste compactor attached to a transfer trailer located on the
left side of the tipping floor. Transfer trailers are attached to a trash compactor and filled from one end.
Once the solid waste is compacted into a transfer trailer, the trailer is removed, replaced with an empty
trailer, and taken to the East Carolina Regional Landfill in Bertie County. The tipping floor operations are
managed by County staff who are responsible for managing truck traffic access to the floor and observing
the waste loads to ensure only authorized waste is accepted.
Wastes are screened by properly trained staff to identify or recognize unacceptable wastes for
approximately 10% of the wastes received pursuant to the current Operations Plan dated November 19,
2018. Waste screening percentages are adjusted depending on the type and nature of the wastes received.
The facility does not accept liquid, hazardous, or other unacceptable or prohibited materials not otherwise
permitted. Unacceptable wastes are immediately given back to the waste hauler for proper disposal, or if
the hauler has left the facility and is no longer available, the wastes are pulled and set to the side of the
tipping floor and picked up by an appropriate contracted waste disposal firm. Waste such as tires, and
electronics are pulled from the tipping floor and taken to the appropriate location at the site for proper
disposal. Records are maintained in accordance with permit requirements.
County staff at the facility periodically inspect the trailer seals and condition of the trailers to ensure the
equipment performs adequately, and in the manner required to prevent the loss of leachate. In the event a
transfer trailer is not able to be taken to the landfill at the end of the day, it is closed, stored onsite, and
taken to the landfill the next working day.
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Hertford County Transfer Station Page 4

The tipping floor is cleared of solid waste at the end of each day and the floor is periodically washed with
water. Leachate created from normal operations, the periodic washing of the tipping floor or the limited
amount of stormwater that may enter the facility on occasion, is collected through a drain located at the
base of the rear push wall in the right corner of the tipping floor. The leachate is piped to a 1,000-gallon
septic tank located behind the rear push wall. The tank is monitored and pumped as needed for disposal to
the Ahoskie Wastewater Treatment Plant (WWTP).
The tipping floor and push walls were visually inspected for signs of excessive wear and damage through
use, including cracks that might allow leachate on the tipping floor to enter the subsurface, joint
separations, spalling of concrete or significant wear that may expose rebar through the use of heavy
equipment. The following items were noted:
• The surface of the tipping floor appears to be in good shape. The tipping floor appears to be
pitched to facilitate control of leachate, washing of the tipping floor and movement of leachate
towards the drain system, although the sides of the tipping floor are not confined so it is possible
for leachate to exit the structure. Care is exercised to prevent discharges of leachate.
• Several large cracks were observed at three (3) locations in the push wall — one in the center of
the rear push wall; one on the left corner of the push wall in front of the compactor, where a large
piece of concrete appears to be on the verge of falling from the push wall; and, the concrete
retaining wall around the used oil storage tank had completely collapsed.
The push wall should be evaluated for integrity and safety, and repairs made to the push wall and concrete
retaining wall around the above ground used oil storage tank.
2.3 Assessment of Roadways and Parking Areas
The transfer station is accessed from Mount Moriah Road in Winton, NC. Signs are posted at the entrance
informing visitors of the days and hours of operation, facility owner name, permit number and the types
of wastes that are unacceptable for disposal. The parking area and roads were assessed for signs of
excessive wear or damage, sunken areas of pavement, whether they were suitable for managing the traffic
flow at the transfer station, and consistency with the permit, operations plan and applicable regulations.
Any concerns related to the condition of the roads, parking areas or ability to maintain adequate control of
traffic entering or exiting the facility at the time of the site visit were noted.
2.3.1 Observations
The site is surrounded by a fence with a lockable gate to prevent unauthorized access and to control or
prevent solid waste from leaving the facility. Signs constructed of durable, weather resistant material are
posted at the entrance informing visitors of the days and hours of operation, facility owner name, permit
number and the types of wastes that are unacceptable for disposal.
The entrance road entering the facility is of gravel construction with concrete used in areas including, but
not limited to, the pads located beneath the white goods staging area, beneath the used electronics staging
area, the apron entrance to the transfer station and the tipping floor. The road surfaces are composed of a
well graded gravel surface leading to the various staging locations and transfer station building.
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Hertford County Transfer Station Page 5

Overall, the existing roadways and parking areas are well maintained and are able to adequately manage
the traffic into and through the transfer station. Gravel had been ordered to resurface the entrance road as
a result of recent heavy rain, but as of the date of the assessment it had not been delivered by the
contractor. Signage is constructed of durable, weather resistant material and notes relevant information as
specified in the permit. All roads and parking areas are consistent with the recently issued LOS permit,
Operations Plan and applicable regulations.
2.4 Assessment of Leachate Collection and Storage System
Leachate generated from the wastes deposited on the tipping floor is collected by a series of leachate
collection drains within the transfer station building, the location of which can vary by facility. Typical
leachate drain locations are in the transfer trailer loading bay area below the tipping floor, and at times
may be located in the tipping floor area, normally in the form of a linear drain across the station entrance.
Leachate that is collected by these drains is typically directed to either a storage tank located adjacent to
the transfer station building, which is periodically pumped and the leachate hauled to a treatment facility,
or the leachate system piping is directly connected to the local municipal wastewater treatment plant
(WWTP) collection system.
Wastes are required to be removed from the tipping floor at the end of each day, after which the tipping
floor is typically washed at some frequency. In addition to the periodic washing of the tipping floor,
current regulations require the tipping floor to be pressure washed at least monthly and the sides of the
building, truck loading bays and scales are to be pressure washed at least twice per year with the resultant
leachate collected and disposed of in accordance with the permit.
Transfer trailers are required to be leak resistant to prevent the release or discharge of leachate from the
trailer. Covers are required to prevent the release of solid waste during transport and while stored at the
transfer station while awaiting pickup. Covers limit the entrance of vectors into the trailer and depending
upon the material used, may also limit the entrance of precipitation into the trailer. For trailers that use
netting to cover the trailer as opposed to a water resistant, solid cover, steps must be taken to manage the
accumulation of any leachate that might be generated by precipitation entering the open trailer. Steps may
include parking the trailers over the leachate collection system drains, under a roofed structure or through
the use of a leachate capture system under the trailer gate.
2.4.1 Observations
On the day of the site visit it was noted that leachate was not collecting on the tipping floor. Recent rains
had resulted in water accumulating along the entrance road and areas around the tipping floor. The floor is
constructed of concrete and is designed to move leachate towards the rear of the transfer station to
discharge through a drain opening to the leachate collection tank located behind the push wall. The drain
was free of debris that might interfere with leachate collection at the time of the site visit.
As noted above, the leachate drain for the Hertford County transfer station is located at the base of the
push wall, and is designed to capture any leachate generated on the tipping floor, and direct it to the
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Hertford County Transfer Station Page 6

1,000-gallon septic tank for storage. The tank cannot currently be accessed by Hertford County staff for
monitoring, and it is recommended the County work with the contract hauler to enable County staff to
visually inspect the tank to ensure sufficient volume is maintained to store leachate. The tank is
periodically pumped and the leachate hauled to the Town of Ahoskie's WWTP.
Overall, the design and operation of the leachate collection system is consistent with the LOS permit,
Operations Plan and applicable rules.
3 CONCLUSION
On June 10, 2021, MESCO staff performed an evaluation of the Hertford County Transfer Station to
satisfy requirements of the rules implemented by the State of North Carolina, Division of Waste
Management, located at the North Carolina Administrative Code, Title 15A, Subchapter 13B, Section
.0400 — Transfer Stations. Overall, the facility is well managed and operating consistent with the
requirements of their Life -of- Site Permit, Permit No. 4602T-TRANSFER-1995, the associated
Operations Plan and rules. Specifically, the following were noted:
• The facility is currently able to accommodate and properly manage the volume of solid waste
received. Wastes are being randomly screened for approximately 10% of the wastes received.
• The facility buildings, including the transfer station and scale house/office buildings located at the
site, are consistent with the most recent Operations Plan, and LOS Permit to Operate.
• The tipping floor was in good shape as of the date of the assessment, with some wear noted.
• The push wall was also observed, noting damage to the left side, rear and right rear corner,
including a collapsed retaining wall that surrounds the fuel and waste oil storage tanks.
• Overall, the existing roadways and parking areas are well maintained and are able to adequately
manage the traffic into and through the transfer station. All roads, parking areas and signage are
consistent with the recently issued LOS permit, Operations Plan and applicable regulations.
• The design and operation of the leachate collection system is consistent with the LOS permit,
Operations Plan and applicable rules. Leachate is periodically pumped and discharged to the
Town of Ahoskie WWTP.
4 RECOMMENDATIONS
Based on the assessment of the Hertford County Transfer Station facility, operation and review of the
Life -of -Site permit and Operations Plan, MESCO recommends the following:
• Review the Operations Plan hours of operation, and signage at the entrance to the transfer station
and reconcile. Modify either the signage or plan as appropriate so that they both reflect the same
hours of operation.
• Modify the Operations Plan to reflect the need to screen wastes at least once per week for 5% of
the average daily tonnage of wastes reported in the facilities annual report. Current regulations
effective January 1, 2021, require a minimum screening frequency of no less than 5% of the
average daily waste tonnage.
Transfer Station Facility Assessment Report June 21, 2021
Hertford County Transfer Station Page 7

• Modify the Operations Plan to reflect the pressure washing of the tipping floor, push wall and
transfer trailer loading bay at least monthly, and the building and other areas where wastes are
handled at least twice per year, in accordance with 15A NCAC 13B .0405(a)(11). The County has
already initiated pressure washing of the facility as required by the referenced rule, in the interim
until the plan is formally modified.
• Conduct an evaluation of the push wall and retaining wall around the petroleum fuel tank and
used oil tank to determine the integrity of the structures, and submit a report to the DWM
summarizing the condition of each prior to the end of 2021.
o Once the structural evaluation is complete, it is recommended that Hertford County
establish a budget and propose a timeline for any needed repairs to be completed in FY
22-23, in consultation with the NCDWM, and as allowed by 15A NCAC 13B
.0401(b)(3).
• Contact the contractor responsible for pumping the leachate storage tank to obtain the tools
needed to allow County staff to periodically (suggest at least monthly) access the tank to evaluate
the available storage, and to pump as needed to maintain adequate volume.
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Hertford County Transfer Station Page 8

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Hertford County Transfer Station Page 9

FIGURES
Figure 1 Hertford County Transfer Station Facility Location, Winton, North Carolina
Figure 2 Hertford County Transfer Station Site Map

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Hertford County Transfer Station
Permit No. 46-02T-Transfer-1995
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Hertford County Transfer Station
Permit No.46-02T-Transfer-1995 - Transfer
Figure 2: Hertford County Transfer Station located 227 Mount Moriah Road, Winton, NC

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APPENDIX A
HERTFORD COUNTY TRANSFER STATION FACILITY PHOTOS

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Photo 5 - Hertford County Transfer Station Building
Photo 6 - Hertford County Transfer Station with Compactor

Photo 7 - Transfer Station Push Wall Left Side
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Photo 11 - Used Electronics Temporary Staging Area
Photo 12 - Used Electronics Storage Area

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Photo 15 - Used Tires Storage Trailer