NCG060023_Process Water Discharge Notification_20240807

Peterson, Kathryn S
From: Eplin, Jerry W
Sent: Wednesday, August 7, 2024 3:00 PM
To: Peterson, Kathryn S
Subject: FW: [External] Tyson Monroe Process Water Discharge
Can you find their SW Permit number and load this into Laserfiche?
Jerry W. Eplin, PE
Regional Engineer
North Carolina Department of Environmental Quality
Division of Energy, Mineral, and Land Resources
Office: [phone]
Email: merry.eplina-deg.nc.gov
Physical and Mailing Address:
610 E. Center Ave. Suite 301
Mooresville, NC 28115
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From:Watson, Edward M <[e-mail]>
Sent:Wednesday, August 7, 2024 12:29 PM
To: Eplin,Jerry W<[e-mail]>
Subject: FW: [External]Tyson Monroe Process Water Discharge
Jerry,
Here is what I received from Tyson regarding the release they experienced last Friday, 8/2/24.
Regards,
Ed
From: Baxter, Doug<[e-mail]>
Sent:Wednesday, August 7, 2024 11:40 AM
To:Watson, Edward M <[e-mail]>
Cc: Edwards,Jonathan <[e-mail]>; Rezaee, Mo<moham [e-mail]>
Subject: [External]Tyson Monroe Process Water Discharge
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Ed—
The following is a description of the discharge of untreated process water at Tyson's Monroe NC location on August 2,
2024. Shortly after midnight on August 2, a process drain became partially obstructed by two plastic shackles, resulting
in untreated process water being released through a manhole located on the exterior of the plant. The process water
flowed down portions of paved and unpaved parking areas and into a stormwater inlet. That inlet conveys stormwater
to a receiving pit(BMP)with a 2,200-gal capacity and equipped with a pump with pumping capacity of 75-
gal/min. Material from this pit is pumped to the offal pit lift station and transferred to Tyson's on-site wastewater
treatment plant(WWTP) prior to discharge to the City of Monroe POTW (the wastewater permit issued to Tyson from
the City allows for incidental flows into the pit as well as the first 60-minutes of a rain event to be pumped to and
treated by Tyson's on-site WWTP). It is estimated that the release lasted approx. 15 minutes,with an estimated 5,500-
gal of process water leaving the manhole. A portion of the released material (assumed 25-30%)was entrained/absorbed
in the gravel parking lot,with the remainder entering the storm inlet and receiving pit. A majority of the material
entering the stormwater pit was pumped to the offal room and WWTP, as designed; however, it is estimated that 450-
500-gal was discharged from the outfall and to an unnamed tributary on an adjacent property. The material was
contained within a small portion of the unnamed tributary,with no material reaching state waters. A vacuum truck was
on-site by 6:30 am,August 2 and recovered approx. 500-550 gal of process water and ponded stormwater(the ponded
stormwater was recovered out of an abundance of caution). Absorbent pads turned out to be ineffective, so few were
used. The weight of the pads was<10 Ibs, about a gallon.
Attached photos show: 1) the untreated process water within a confined portion of the unnamed tributary, 2)two totes
containing recovered process water and ponded storm water, 3) picture of the impacted area following product
recovery,4) clean-up efforts.
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Doug Baxter,Sr.Area Environmental
RegionEast
FoodsTyson
TysoF vds13264 Mountain Road, Allen, .
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[e-mail]

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