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HomeMy WebLinkAboutNC0000272_NOV-2022-LV-0002 Response_20220114p►activ evergreen. 175 Main Street Canton, NC 28716 828.646.2000 pactivevergreen.com CERTIFIED MAIL— RETURN RECEIPT REQUESTED 70200640000046061718 January 14, 2022 Mr. Landon Davidson Regional Supervisor Division of Water Resources — Asheville Regional Office North Carolina Department of Environmental Quality 2090 US Hwy 70 Swannanoa, North Carolina 28778 Subject: Response to NOV-2022-LV-0002 Blue Ridge Paper Products, Inc. dba Evergreen Packaging Canton Mill - Permit No. N00000272 Dear Mr. Davidson: This document responds to NOV-2022-LV-0002 received on January 4, 2022. Firstly, Evergreen Packaging places paramount importance upon permit compliance and water resource protection and regrets the issues that led to the upset of the mill wastewater treatment plant. The facility has a significant history of NPDES wastewater permit limit compliance, particularly regarding BOD limits. Two exceedances of BOD daily limits were identified during review of the previous 15 years of discharge monitoring records: October 31, 2008 and May 17, 2012. Clearly, the recent BOD limit non- compliance was a rare event and effective treatment of wastewater and discharge of compliant effluent should be expected. As reported in the Noncompliance Report submitted to your office on December 6, 2021, wastewater treatment processes and effluent quality were negatively impacted by soap entering the mill sewer system, causing the exceedances of permit limits described in the subject NOV. Additional information regarding the investigation and actions taken by the mill since the above - mentioned report was delivered is provided below. Cause Investigation Evergreen has continued efforts to identify the cause(s) of the introduction of soap to the mill sewer system, including reviewing mechanical components, system processes, communication/warning systems, and operator actions and responses. As reported previously, two likely causes have been identified: 1. Discharge from the tall -oil -making process 2. Overflow from the pine weak liquor storage tank Response to NOV-2022-LV-0002 Page 2 of 3 Corrective Action After further investigation of the causes, the following items were identified that likely could have prevented the loss of soap to the mill sewer: • Updated training for operators of the extreme importance of containing soap in mill processes and avoiding any discharge to the wastewater treatment plant (WTP), including more aggressive action steps to eliminate and capture any discharges • Updated training for operators of best management practices (BMPs) • Expanded communications of pine weak liquor storage tank monitoring data to operators and managers • Remote visual monitoring of the pine weak liquor storage tank area • Enhanced, timely communications of process condition changes that may indicate possible soap overflows or discharges • Increased secondary containment at the pine weak liquor storage tank to prevent discharge of soap to the containment sump Briefings and communications have been conducted with operators to emphasize the extreme importance of containing soap in mill processes and avoiding any discharge to the wastewater treatment plant (WTP). BMP training will be updated and enhanced for release to mill personnel as soon as possible in 2022. Best practices regarding the use and management of hoses within the tall -oil -making system has been reviewed with department staff and the importance of maintaining effective secondary containment of all products containing soap has been emphasized. Communication of data collected from the overflow alarm on the pine weak liquor tank, an indication of possible soap discharge from the tank, was modified to display in a second location for increased visibility of process conditions for department managers. A text -enabled alarm to appropriate personnel has also been initiated. Remote visual monitoring was considered an enhancement to pine weak liquor tank area monitoring. Installation of surveillance camera equipment is planned. Until camera installation is completed, mill personnel are inspecting the pine weak liquor tank area every 30 minutes. Intradepartmental and interdepartmental communications have been enhanced to create more effective prevention and capture of soap discharges. To further prevent the discharge of soap from the pine weak liquor tank to the mill sewer, secondary containment is being modified to provide additional storage capacity. Temporary measures have been implemented until permanent modifications can be completed. Spent liquor, turpentine and soap containments, conductivity sensors and level transmitters have been inspected to ensure all components are functional. The following procedures and processes have been reviewed and will be modified as needed: • BMP inspections Response to NOV-2022-LV-0002 Page 3 of 3 • Equipment repairs • Sump, sewer and wastewater monitoring • Spill response We are hopeful consideration will be given to the long-term compliance history maintained by the mill and corrective actions taken since the subject non-compliance event, as you review this matter. Please contact Mr. Tracy Willis if we can provide any additional information that may be helpful. Respectfully, ‘lize Tracy'Willis Wastewater Treatment Plant ORC Canton Mill tracy.willis@pactivevergreen.com Phone: 828-646-2874 / Mobile: 828-424-9955 John McCarthy General Manager Canton Mill john.mccarthy@pactivevergreen.com Phone: 828-646-2840