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HomeMy WebLinkAboutNC0001970_Annual Report_20230328114 Edinburgh S. Drive, Ste. 200 T 9119.827-08G4 �Ilk TRC Cary, NC 27511 TRCcompanies-corn March 24, 2023 Dr. Amir Adaryani Division of Water Quality North Carolina Department of Environmental Quality 1617 Mail Service Center Raleigh, North Carolina 27669-1617 Re: 2022 Annual Chloride Reduction Report Pickles Manufacturing, LLC (formerly Bay Valley Foods, Dean's Pickles) 354 N. Faison Avenue, Faison, North Carolina NPDES Permit No. NCO001970 TRC Project No.: 534277 Dear Dr. Adaryani, On behalf of Pickles Manufacturing, LILC (formerly Bay Valley Foods, Dean's Pickles), TRC Engineers Inc. (TRC, formerly Draper Aden Associates) is pleased to present the 2022 Annual Chloride Reduction Report for the Faison, NC, facility. In accordance with Special Condition A. (5) b.: NPDES Permit No. NCO001970, Pickles Manufacturing, LILC-Faison, NC, continues efforts to study and evaluate chloride removal technologies and chloride reduction strategies. Enclosed please find a copy of the facility's 2022 Annual Chloride Reduction Report. Throughout the 1980's, 1990's and 2000's significant investments were made on process improvements, new equipment purchases, and process change strategies aimed at reducing salt use and subsequent chloride discharges. Notable investments and process changes include the replacement of wooden fermentation tanks, reduction of salt concentration in brines, process automation, and brine recycling technology. These efforts resulted in substantial reduction in salt use, with subsequent focus on pollution prevention efforts further reducing chloride discharges to surface water. As noted in previous Annual Chloride Reduction Evaluation Reports, there have been no recent economically feasible advances in chloride removal technologies applicable to the production processes employed at Pickles Manufacturing, LLC — Faison, NC. Efforts continue to improve process control and automation with a focus on reducing brine loss and salt waste. If you have any questions or comments, please contact us at 919-423-2016. Sincerely, TRC Engineers Inc. Bilgen Yuncu, PhD, PE, PMP Environmental Engineer/Project Manager Enclosure cc: Donovan Brock, Doug Dowden Jim Hurley, MS, El Project Environmental Engineer I TIR C 2022 Annual Chloride Reduction Report Pickles Manufacturing, LLC (Formerly Bay Valley Foods, Dean's Pickles) Faison, NC NPDES Permit: NCO001970 March 24, 2023 Prep6red by.- Jim Hurley Project Environmental Engineer I Prepared For: Pickles Manufacturing, LLC 354 N. Faison Avenue Faison, North Carolina 28341 Prepared By: TRC Engineers Inc. 114 Edinburgh South Drive Suite 200 Cary, NC 27511 Uz I �!fxl MAN M711 �, I MFIO Is WIVA Reviewed and Approved by: Bilgen Yuncu Environmental Engineer/Project Manager TIRC TABLE OF CONTENTS 1.0 BASIC INFORMATION .................................................................................................. 1 2.0 PRODUCTION ............................................................................................................... 1 3.0 EVALUATED/IMPLEMENTED TECHNOLOGIES AND APPROACHES ....................... 4 4.0 TECHNOLOGIES AND APPROACHES CONSIDERED FOR 2022 AND BEYOND ...... 5 4.1 Bypass Salting / No Fermentation Process ........................................................................ 5 4.2 Desalt Process Improvements ............................................................................................ 5 4.3 Brine Reclaim Process Improvement — 5-Gallon Pail Line ................................................. 5 4.4 Wastewater Treatment Process Improvements .................................................................. 6 4.5 Pickle Packers International (PPI) ...................................................................................... 6 4.6 Treatment Technologies ..................................................................................................... 6 5.0 WASTE REDUCTION .................................................................................................... 6 6.0 MONTHLY CHLORIDE DISCHARGES .......................................................................... 7 7.0 ANNUAL AVERAGE INSTREAM CHLORIDE CONCENTRATIONS ............................. 8 TABLES Table 2.1 Annual Production Units and Ratio of Chloride Discharged to Production Units.................................................................................................................... 2 Table 2.2 Comparison of Annual Data (2005 — 2022) .......................................................... 3 Table 6.0 Monthly Chloride Discharges 2022 ...................................................................... 7 Table 7.0 Annual Average Instrearn Chloride Concentrations 1997-2022 (mg/L) ................. 8 CHARTS Chart 1 Annual Average Daily Chloride Discharges Chart 2 Annual Equivalent Production Units Chart 3 Pounds of Chloride Discharged per EPU Produced Chart 4 2022 Monthly Chloride Discharges Chart 5 Annual Average Instrearn Chloride Concentrations Chart 6 Total Annual Chloride Discharges 1996-2022 2022 Annual Chloride Reduction Report March 24, 2023 Pickles Manufacturing, LLC — Faison, North Carolina i TRC Project No. 534277 TIRC 1.0 Basic Information Pickles Manufacturing, LLC (formerly Bay Valley Foods) — Faison, INIC (PM), remains committed to continuing efforts to maintain the downward trend in chloride discharges from its production facility. Through emphasis on its comprehensive pollution prevention, advanced process control and automation aimed at reducing brine loss, replacement of inefficient equipment and ongoing efforts in the identification and implementation of new and innovative reduction opportunities, PM maintains its focus on the reduction of chlorides in its waste stream (Chart 1). PM will continue to investigate and monitor technological advances that may have potential application to the pickle processing industry and supports research efforts in this area through its membership in professional trade organizations such as Pickle Packers International. PM is willing to implement cost-effective chloride removal technologies and pollution reduction measures that can be proven effective and not compromise or impair finished product quality and/or characteristics. 2.0 Production PM uses an established formula whereby all production types, in all facilities, are normalized. The normalized unit of measure is referred to as an "Equivalent Production Unit" and allows for a fair and equal comparison of differing sized containers from a 1 O-ounce jar to 5-gallon bucket. The Equivalent Production Unit (EPU) brings all production to a case equivalent volume and enables a fair comparison of production between facilities and production years and provides a balanced method to evaluate performance. The Faison, INIC facility production requirements increased annually from 1996 through 2006 at which time, production peaked at 9.04 million EPU (Tables 2.1 and 2.2). Since 2006, the production throughput has generally decreased (Chart 2). The 2022 production volume was 5.15 million EPU, a 15.5% decrease from the 2021 volume (6.10 million EPU) (Table 2.1). The 2022 average ratio of chloride discharged in pounds per EPU (0.37) is slightly above the 1996 — 2022 average ratio (0.32) and, also, above the 2018 - 2022 five-year average ratio (also 0.32) (Table 2.2). Due to the ongoing commitment from facility leadership, the pounds of chloride discharged per EPU continue to show a long-term downward trend of approximately 0.006 pounds discharged per EPU per year (Chart 3). 2022 Annual Chloride Reduction Report March 24, 2023 Pickles Manufacturing, LLC — Faison, North Carolina 1 TRC Project No. 534277 4 ,Ar TRC Table 2.1: Annual Production Units and Ratio of Chloride Discharged to Equivalent Production Units (1996-2022) �- Production Year 1996 Production Equivalent Units (millions) 5.74 Chloride to Units Produced Ratio 0.51 1997 NA NA 1998 NA NA 1999 7.09 0.37 2000 7.28 0.38 2001 7.59 0.31 2002 8.71 0.28 2003 8.45 0.37 2004 8.32 0.31 2005 8.23 0.33 2006 9.04 0.35 2007 8.98 0.40 2008 8.57 0.38 2009 8.82 0.35 2010 8.23 0.39 2011 7.85 0.25 2012 7.26 0.20 2013 6.82 0.19 2014 6.60 0.21 2015 7.01 0.17 2016 6.84 0.22 2017 5.90 0.26 2018 5.49 0.34 2019 4.83 0.19 2020 4.76 0.42 2021 6.10 0.30 2022 5.15 0.37 Average 1996-2022 7.19 0.32 Average 2018-2022 5.27 0.32 Notes: NA - Data not available 2022 Annual Chloride Reduction Report March 24, 2023 Pickles Manufacturing, LLC - Faison, North Carolina 2 TRC Project No. 534277 TIRC Table 2.2: Comparison of Annual Data (2005 - 2022) Data Description 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 Annual Chloride 2,731,749 3,133,189 3,588,806 3,250,525 3,090,730 3,193,908 1,962,923 1,464,092 1,273,754 1,418,341 1,218,420 1,497,130 1,542,683 1,869,489 903,820 1,991,004 1,829,264 1,898,836 Discharge (lbs) Annual Production (Equivalent Production 8,234,700 9,039,500 8,981,990 8,572,000 8,821,135 8,226,346 7,846,314 7,258,154 6,816,632 6,602,658 7,012,627 6,837,706 5,896,035 5,486,941 4,834,657 4,757,562 6,096,246 5,152,050 Units) Chloride Discharge per Equivalent Unit 0.33 0.35 0.4 0.38 0.35 0.39 0.25 0.2 0.19 0.21 0.17 0.22 0.26 0.34 0.19 0.42 0.30 0.37 (lbs/EPU) Annual NaCl and CaC12 NaCl: 2,989,800 NaCl: 2,772,594 Use NA NA NA NA NA NA NA NA NA NA NA NA NA 3,392,194 2,793,822 3,348,508 CaC12: 377,370 CaC12: 459,899 (lbs) Annual Water Use (MG) 119.2 98.03 109.11 94.3 101.78 107.7 115.32 97.6 91.61 114.47 133.6 133.77 114.29 140.24 91.38 135.88 153.72 123.90 Annual NaCl & CaC12 Purchases 4,409,000 4,929,000 6,652,000 6,104,000 4,913,000 4,020,000 1,998,000 3,702,000 3,805,000 3,228,325 2,603,393 4,259,319 6,471,116 6,578,677 3,027,909 2,831,510 3,478,220 3,342,506 (lbs) Salt Use per Equivalent Unit 0.54 0.55 0.74 0.71 0.56 0.49 0.25 0.51 0.56 0.49 0.37 0.62 0.52 0.62 0.58 0.70 0.52 0.63 (lbs/EPU) Notes: NA - Data not available Annual purchases prior to 2018 calculated from salt use per equivalent unit. Values from 2018 to present represent actual chloride use. 2022 Annual Chloride Reduction Report March 24, 2023 Pickles Manufacturing, LLC; - Faison, North Carolina 3 TRC Project No. 534277 TIRC 3.0 Evaluated/implemented Technologies and Approaches Summary of Chloride Reduction Strateaies ImDlemented and/or Evaluated at Faison. NC 1982 through 1990 — Replaced all wood fermentation tanks with fiberglass or plastic 1982 through 1994 — Salt Use Reduction in Brining - % salt reduced from 15.8% to 6.3% salt (Substitute calcium chloride and acetic acid in brine prep) 1987 to 1989 — Recycle Brine — Currently recycle 100% of brine 1988 — Desalting Operation Moved to Brine Yard 1991 — Enhanced Automation of 5-Gallon Production Line 1991 — Enhanced Automation of Major Customer Brine System 1992 — Replace Open -Top Blancher with Rotary Blancher 1992 — Enhanced Bulk Product Handling Processes 1993 — Upgrade Brine -making Station 1993 — Replace Brine Yard Pickle Pump 1994 — Install Titanium Heat Exchanger — Brine Recycling/Pasteurization Process 2002- Increase Brine Reclaim 0 2003, 2004, 2005, 2006 — Evaluate Use of De -Salt Water for Brining and/or Product Fluming 0 2003, 2004, 2005, 2006 — Evaluate Use of De -Salt Water for Subsequent De -Salting Operations 0 2003, 2004 — Evaluate Recovery of Bottom 2-inches of Concentrated Brine Left in Fermentation Tanks After Cleaning 2004 — Install De -Salt Flume Conveyor 2004 — Evaluate De -Salt Brine Filtering for Possible Reuse 2004, 2005 — Evaluate De -Salting through the Lyco Blancher (Continuous Process vs. Batch Process) 2004, 2005 — Evaluate Rapid De -Salt Process 2005, 2006 — Evaluate Improvement in Cover Brine Recovery/Blow Lines 2005 — Evaluate New De -Salting Operation Located in Tank Yard 2005 — Install WW Sludge Filter Press and Clean Sludge from WW Treatment Ponds 2005, 2006, 2007, 2008 — Evaluate In -Line De -Salting 2005 — Implemented By -Pass Salting / No Fermentation Process 2005 (2006, 2007, 2008 2009) — Begin 4-Phase Storm Water Management Project 2007, 2008 — Improvements to Cover Brine Efficiency & Recovery Line 1 and 2 2008 — Implemented Enhanced Relish Desalting Control 2009 — Implemented Replace Pickle Conveyor Pump at a cost of $4,500 2009 — Implemented Upgrade Desalting Operation by Installing Four Additional De - Salt Tanks at a cost of $350,000 2011 — Implemented a project to remove excess biomass from Pond 1 of its wastewater treatment system. 1,500 tons of biomass was dewatered and removed at a cost of $143,000. 2012 — Continued the removal process of excess biomass from Pond 1 with an additional removal and dewatering of 3,000 ton at a cost of $249,000. 2014 - Continued the removal process of excess biomass from Pond 1 with an additional removal and dewatering of 3643 ton at a cost of $368,000. 2022 Annual Chloride Reduction Report March 24, 2023 Pickles Manufacturing, LLC — Faison, North Carolina 4 TRC Project No. 534277 Alk TIR C 0 2016 - Implemented removal process of excess biomass from Pond 2 with removal and dewatering of 3727 tons at a cost of $230,000. 0 2016 — Implemented removal and replacement of Pond 2 liner and begin construction and lining of Pond 3 at a cost of $500,000. 0 2016 — Evaluate Reverse Osmosis and Electrodialysis/Electrodialysis Reversal to Reduce Chloride at End -of -Pipe. Neither technology was considered feasible due to cost considerations. 0 2017 — Completed the excess biomass removal from Pond 3 with removal and dewatering of 1,963 tons at a cost of $336,000. 0 2017 — Completed installing the new liner at Pond 3 on April 1, 2017 at a cost of $100,000 0 2018 — Completed lining Pond 1. Sludge removal cost totaled $285,000. The three ponds have been relined. 2021 — 280 tons of sludge removed at a cost of $11,000. 2022 — 2,231 tons of sludge removed at a cost of $51,850 4.0 Technologies and Approaches Considered for 2022 and Beyond Many projects, programs, process changes, and chloride reduction strategies that were implemented in the past continued to be utilized into 2022 as described in the following sections. 4.1 Bypass Salting / No Fermentation Process The proprietary "No Fermentation" process continues to be a significant process improvement and chloride reduction strategy and will be considered for all future production opportunities where applicable. 4.2 Desalt Process Improvements The Faison facility added four portable de -salt tanks for product de -salting. The de -salting process must be accomplished quickly to support the production schedule, which can result in over de -salting of the product necessitating the re -addition of salt. The result is excess water use, increased salt use and ultimately additional chloride discharges. The four portable de -salt tanks enabled the facility to extend the duration of the de -salt process, which provided improved process control. Status: Successful process improvements were made to the de -salt process in 2009. Cost Associated with Improvements - $350,000. 4.3 Brine Reclaim Process Improvement — 5-Gallon Pail Line The installation of catch pans, filter screens, and a brine reclaim tank on the 5-gallon pail line allows for the capture of overflow brine and eventual reuse, rather than discharged as high chloride concentrated wastewater. Status: Successful improvements were made to the brine reclaim system on the 5-gallon pail processing line in 2009. Cost Associated with Improvements - $4,500. 2022 Annual Chloride Reduction Report March 24, 2023 Pickles Manufacturing, LLC — Faison, North Carolina 5 TRC Project No. 534277 Alk TIR C 4.4 Wastewater Treatment Process Improvements Excess biomass accumulation in Pond 3 was removed and the pond was relined. This project was completed in April 2017. In 2017, PM removed biomass accumulation from Pond 1 and began the process to re -line Pond 1. Sludge removal and liner replacement was completed in March 2018. Pond 1 aerators were re -wired, and the pond was returned to normal operations on May 1, 2018. An additional 280 tons of sludge was removed in 2021, and 2,231 tons of sludge was removed in 2022 at a cost of $51,850 . Status: Successful improvements were made to the wastewater ponds. Sludge removal costs to date - $347,850. 4.5 Pickle Packers International (PPI) PM is a member of, and continues to participate in, the Pickle Packers International organization. Through participation in this organization, PM remains current on new processing technologies which may include reduced salt use, and wastewater treatment strategies others in the pickle processing industry may have implemented that result in reduced chlorides in wastewater discharges. 4.6 Treatment Technologies Ramboll Environ prepared a Chloride Removal Technology Evaluation Report dated January 12, 2017. The report identified several technologies potentially applicable to the PM facility. The technologies included reverse osmosis, electrodialysis / electrodialysis reversal, chemical precipitation, product substitution, flow augmentation, and residuals management. PM is committed to investigating and evaluating any new treatment technology based on technical applicability and feasibility. 5.0 Waste Reduction The ongoing waste reduction efforts at the Facility have continued through 2022. The facility has formed a cross -functional Pollution Prevention Team (Team) that meets on a regular basis to discuss and evaluate waste generation and chloride reduction opportunities. A comprehensive pollution prevention program is in place which includes educating employees regarding waste best management practices and the importance of identifying strategies that can reduce chloride discharges. Chloride reduction is a primary focus of the Team along with water conservation, efficient utilization of energy, and minimizing waste generation. In addition, the Team considers maintenance practices and other protocols that may result in brine loss. Finally, the Team is continually evaluating processes for redesign consideration with respect to improved efficiency and chloride discharge reduction opportunities. In combination with waste reduction and pollution prevention efforts, PM continues to focus on preventive maintenance programs and giving a priority assignment to any maintenance work order involving process equipment that could result in increased discharge of chlorides. These activities along with employee training help foster and expand a work ethic focused on waste reduction as well as process improvements. 2022 Annual Chloride Reduction Report March 24, 2023 Pickles Manufacturing, LLC — Faison, North Carolina 6 TRC Project No. 534277 4 ,ir TRC The maximum daily discharge for each month in 2022 was below the daily maximum limit and the average monthly discharge was below the monthly average limit (Table 6.0 and Chart 4). Upstream chloride concentrations represent background values. An anomalous peak in downstream chloride concentrations observed in 2007 was attributed to low stream flow conditions throughout the year, a result of drought conditions. Linear regressions performed on chloride stream concentrations found in Table 7 indicate decreasing trends (negative slopes) in Downstream Points #1 and #3, and a slightly increasing trend (positive slope) in Downstream Point #2 (Chart 5). The total annual chloride discharge generally decreased from 2007 to 2015 (Table 2.2, Chart 6). From 2015 through 2021, chloride discharges have fluctuated, but have remained well below the 2007 level. The provided charts demonstrate that waste reduction efforts at the PIVI facility are effective. 6.0 Monthly Chloride Discharges Table 6.0: Monthly Chloride Discharges in 2022 Current Chloride Discharge Limits: Monthly Average Limit = 13,476 lbs/day Daily Maximum Limit 19,120 Ibs/day 2022 Chloride Discharges Month Max (lbs/day) Average (lbs/day) Total (lbs) January 11,435 5,273 163,463 February 11,427 6,983 195,520 March 11,354 9,715 301,152 April 9,756 6,041 181,237 May 9,133 7,001 217,027 June 10,202 5,722 171,660 July 10,445 6,181 191,614 August 7,407 4,642 143,898 September 5,216 2,425 72,750 October 5,337 3,770 116,862 November 3,226 2,361 70,820 December 3,606 2,349 72,829 2022 Annual Chloride Reduction Report March 24, 2023 Pickles Manufacturing, LLC - Faison, North Carolina 7 TRC Project No. 534277 TRC 7.0 Annual Average Instrearn Chloride Concentrations Table 7.0: Annual Average Instrearn Chloride Concentrations 1997-2022 (mg/L) Year 1997 Upstream 9.1 Downstream 1 771 Downstream 2 249 Downstream 3 132 1998 21 963 271 133 1999 23 616 132 92 2000 22 601 91 66 2001 25 753 123 102 2002 30 790 290 170 2003 20 354 81 60 2004 22 424 52 45 2005 24 768 121 91 2006 23 565 99 74 2007 37 2,129 516 249 2008 26 1,284 174 149 2009 38 1,133 194 140 2010 33 974 314 125 2011 29 900 436 130 2012 64 731 167 159 2013 27 587 98 79 2014 25 310 94 61 2015 20 320 140 70 2016 24 402 252 60 2017 19 482 330 76 2018 23 244 114 53 2019 23 526 214 77 2020 18 243 106 44 2021 18 567 225 96 2022 25 892 296 124 2022 Annual Chloride Reduction Report March 24, 2023 Pickles Manufacturing, LLC — Faison, North Carolina 8 TRC Project No. 534277 TIRC Charts Pickles Manufacturing LLC - Faison NC NPIDES: NCO001970 12000 10000 8000 6000 0 0 0 CL w 4000 W 0 2000 Chart 1 Annual Average Daily Chloride Discharges 199S 1997 1999 2001 2003 2005 2007 2009 Yeai TRC Engineers — Cary NC March 24, 2023 pill a �1161 19�141 16�1161 W�141 La�xlyj �101j;�IQPJI Pickles Manufacturing LLC - Faison NC TRC Engineers — Cary NC NPIDES: NCO001970 March 24, 2023 Chart 2 Annual Equivalent Production Units (Millions of EPUs) 10 9 8 7 6 Uj 4-- 0 LO C: 0 R 3 2 1 0 1 1995 1997 1999 2001 2003 2005 2007 2009 2011 2013 201S 2017 2019 2021 2023 202S Year Pickles Manufacturing LLC - Faison NC TRC Engineers — Cary NC NPIDES: NCO001970 March 24, 2023 Chart 3 Pounds of Chloride Discharged Per EPU Produced (lbs CI-/EPU) 0.6 0.5 y = -0.0055x+ 11.398 n2 f% I%f%f%n 0.4 LU 0.3 0 0- 0.2 0.1 0 1 1995 1997 1999 2001 2003 2005 2007 2009 2011 2013 2015 2017 2019 2021 2023 2025 Year Pickles Manufacturing LLC - Faison NC NPDES: NCO001970 22,000 >- 18,000 16,000 CL 14,000 LA 12,000 0 10,000 U 8,000 %0-. 0 6,000 0 CL 4,000 MIS 11 Chart 4 2022 Monthly Chloride Discharges (pounds per day) e6 05 Monthly Average Daily Discharge TRC Engineers — Cary NC March 24, 2023 44�, S, Oct /VO 0. Ob t, ' Ile On rt L '076", 0*7601- Monthly Maximum Daily Discharge Monthly Average Daily Discharge Limit — Daily Discharge Limit Pickles Manufacturing LLC - Faison NC NPIDES: NCO001970 Chart 5 Annual Average Instrearn Chloride Concentrations 2,200 2,000 1,800 1,600 E 1,400 E2 1,200 1,00D 0 U 80() 600 4c.�_: 200 TRC Engineers — Cary NC March 24, 2023 0 1 - - - - - — - - — - - - — - - - - 1995 1997 1999 2001 2003 2005 2007 2OD9 2011 2013 2015 2017 2019 2021 2023 2025 Year 0 Upstream (Background) 0 Downstream Point #1 Downstream Point #2 Downstream Point #3 ......... Linear (Upstream (Background)) ......... Linear (Downstream Point #1) Linear (Downstream Point #2) ......... Linear (Downstream Point #3) Pickles Manufacturing LLC - Faison NC NPIDES: NCO001970 4,000,000 MOM RJEN�, I cu .2 2,000,000 0 1,500,000 0 0- IIIIIIIIIIIIIIIIIIIII2291,11M Chart 6 Total Annual Chloride Discharges 1996 - 2022 1995 1997 1999 2001 2003 2005 2007 2009 2011 Year TRC Engineers — Cary NC March 24, 2023 2013 2015 2017 2019 2021 2023 2025