WQ0003924_Work Plan for Back Pit and EQ Tank Closure_20230124

( CDG
4301 Taggart Creek Road
Charlotte, NC28208 January 24, 2023
Tel [phone]
License No. C-4973 Via email
cdge.corn Edward Watson
Hyd rogeologist
Water Quality Regional Operations Section
Division of Water Resources
610 East Center Avenue, Suite 301
Mooresville, North Carolina 28115
Subject: Work Plan for Back Pit, Front Pit and EQTank Closure
Former Celadon Recycling Facility
Linco Partnership
Lincolnton, NC
CDG Project No. R990129901
Dear Mr. Watson,
On behalf of Linco Partnership (Linco), the property owner of the former
Celadon Recycling Solutions operation, CDG, Inc. (formerly Shield Engineering,
Inc.) is presenting this work plan for the Back Pit, Front Pit and the EQ Tank
formerly containing waste at the facility. As the DEQ is aware, the waste water
treatment system has been out of operation since Celadon abandoned the
property. In an orderly fashion Linco has addressed various water -containing
components of the former Celadon operation including open pits, processing
equipment, and water storage facilities and mobile equipment. The purpose of
this work plan is to provide documentation of procedures taken and to be taken
regarding these components of the Wastewater Treatment System. We have
previously provided documentation regarding several tasks taken in the closure
process and refer to those reports for specific details including sampling
protocols and disposal records.
Previous Back Pit, Front Pit and EQTank Waste Removal Activities
A report of the Back Pit and Front Pit closure dated September 22, 2022, was
provided to Mr. Edward Watson with the Division of Water Resources (DWR).
Below is a summary of the activities to date for the Back Pit, Front Pit and the
EQTank.
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(: CDG
4301 Taggart Creek Road
Charlotte, NC 28208
Tel [phone]
License No. C-4973
cdge.com
Back Pit
The Back Pit is located in a small outbuilding located east of the southern
portion of the main building. The pit is made up of two chambers constructed
of formed concrete that were once used by Celadon as a settling pit.
Underground piping runs from this pit to the EQ tank used to convey (via
pumping) liquids from the pit to the EQ tank.
Currently the pit only receives stormwater from building downspouts and drop
inlets around the building. Stormwater is accumulated by the collection system
and routed to a trunk line that enters the pit.
On June 14, 2021, Shield observed the closure activities performed by Hazmat
Environmental Services (Hazmat). Hazmat used vacuum trucks to remove the
solids and liquids from the pit and high-pressure water to remove waste
material from its sides.
The 3400 gallons of waste material from the Back Pit was transported to
Hazmat's solidification facility in Charlotte, NC and was then disposed at the
Republic Services Subtitle D landfill in Concord, N.C. Waste manifests were
provided to the DWR.
Front Pit
The Front Pit is located near the facility office front door. It is uncovered and
also constructed of formed concrete. We are informed that it occasionally
received wastewater from customers' tanker trucks and also waters originating
inside the plant building. The Front Pit was once used as a waste settling pit.
We understand this pit has no effluent discharge piping.
From February 10 to February 23, 2022, Shield observed the Front Pit closure
activities performed by Hepaco. Hepaco used vacuum boxes to remove the
solids and liquids from the Front Pit in a similar manner to the Back Pit
described above. After removing the waste, the bottom and sides of the Front
Pit were cleaned with high pressure water.
Approximately 233 tons of material were removed from the front pit. The
material was disposed of at the Waste Connections- Anson County, NC Subtitle
D Landfill. Waste manifests were provided to the DWR.
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CCDG
4301 Taggart Creek Road EQ Tank
Charlotte, NC 28208 The EQ Tank is located near the former wastewater lagoon. It is constructed of
Tel [phone] stainless steel and is approximately 15 feet high and 63 feet in diameter with a
License No. C-4973 nominal capacity of 350,000 gallons. The EQtank was part of the previous non -
discharge wastewater system operated by an applesauce and fruit drink
cdge.com
processing operation prior to Linco's ownership of the facility. We understand
that during Celadon's occupation of the facility, the tank received rainwater
and stored wastewater prior to discharge to the Lincolnton POTW.
Between September 12, 2022, and October 19, 2022 the contents of the EQ
Tank were pumped out by Shamrock Environmental. The waste was disposed
at their wastewater facility in Brown's Summit NC. Waste manifests have been
previously provided to Ed Watson with the DWR. According to the waste
manifests, 348,425 gallons of waste were removed from the EQtank.
The piping from the bottom of the EQ tank to the recirculation pump in the
nearby pump house is currently connected and the liquids will be collected as
part of the recently awarded "tote disposal contract" with Hepaco.
Miscellaneous Wastewater Treatment Plant Vessels
Following sampling and analysis, on January 12, 2023, all liquids were removed
from the Celadon wastewater treatment vessels in the tote rinse room and
properly disposed by Hepaco. That equipment is the subject of on -going sales
processes and will be removed.
Proposed Closure Activities
Presented below are the general procedures for taking the subject wastewater
treatment plant components out of use.
Back Pit
The underground piping from the pit to the EQtank should be emptied, if found
to contain liquids, and properly plugged at the pit end. Any removed materials
should be disposed at a permitted facility.
As previously described, the pit has been cleaned. Moreover, the only influent
the pit receives is rainwater from the roof drains and parking lot runoff. Since
water entering the pit is no longer in contact with a component of the
wastewater treatment system, it should not be considered wastewater. In
order to manage the stormwater that enters the pit, a sump pump system will
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(:CDG
4301 Taggart Creek Road be configured to control the water accumulating in the pit. The pump should
Charlotte. NC 28208 be connected to a discharge line that leads to the floodplain of Carpenter Creek
Tel [phone] to the southeast. Rip -rap or similar outfall protection should be placed at the
License No. C-4973
discharge point.
cdge.com
Front Pit
As previously described, the Front Pit has been cleaned. Accumulated
rainwater should be removed from the pit to allow worker access and safe use
of electrical tools. Or if a dry environment cannot be maintained, air powered
tools should be used. Approximately sixteen 1 to 2 inch diameter holes will be
drilled with a percussion drill or similar tool in order to penetrate the bottom
concrete to provide drainage. The pit can then be backfilled with soil to present
grade and then planted with grass or other landscaping vegetation.
EQ Tank
Linco is in negotiations for demolition and removal of the tank which will
include the walls and bottom. The vendor will remove for recycling or proper
disposal. Prior to demolition, any piping connected to the tank will be drained
of remaining liquids and removed. Drainage of remaining water between the
tank and pumphouse is presently under contract as noted above. Prior to
demolition, in order to manage precipitation that falls inside the tank, the
piping from the center drain of the tank will be disconnected at the
recirculation pump and the pipe extended over the ground to the flood plain
of Carpenter Creek to the southeast. Rock rip -rap or similar outfall protection
should be placed at the outfall point.
Miscellaneous Wastewater Treatment Vessels
The vessels are planned for removal and is the subject of ongoing sales
processes.
Please contact me 704-394-6913 if you have any questions.
Sincerely,
CDG, Inc.
Thomas W. Witner, P.G.
Team Leader
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