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HomeMy WebLinkAboutWQ0000884_Annual Groundwater Report_201902274%64 Dewberry Engineers Inc. 919.881.9939 Dewberry 2610 Wycliff Road, Suite 410' 919,881.9923 fax Raleigh, NC 27607 www.dewberry.com February 27, 2019 NC Department of Environmental Quality — Wilmington Regional Office Attn: Steve West 127 Cardinal Drive Ext Wilmington, NC 28405 RE: Butterball, LLC — Non -Discharge Permit WQ0000884 Annual Groundwater Report Dear Mr. West: Dewberry is pleased to submit the enclosed Annual Groundwater Report on behalf of Butterball, LLC (Butterball). This is the first Annual Groundwater Report submitted to satisfy the requirement of Section I.6 of Permit WQ0000884 issued May 11, 2018. Butterball will submit the next Annual Groundwater Report by March 1, 2020. Please feel free to contact me at 919-424-3764 with any questions regarding this submittal. Sincerely, kiea,v, Dd&j Leigh -Ann Dudley, PE Project Manager Page 1 of 1 Dewberry Annual Groundwater Report February 27, 2019 Prepared by: Dewberry Engineers Inc. 2610 Wycliff Road Suite 410 Raleigh, NC 27607 Prepared For: Butterball 1628 Garner Chapel Road Mt Olive, NC Dewberry Table of Contents Tableof Contents............................................................................................... Introduction....................................................................................................... Groundwater Monitoring Well Data................................................................. CorrectiveAction................................................................................................ Conclusion................................................................................................ ...... 2 1 of 8 Dewberry® Introduction Butterball operates a turkey processing facility in Mt Olive, NC. The facility operates a 2 million gallon per day (MGD) wastewater treatment plant for the treatment of process wastewater prior to land application under the auspices of Wastewater Irrigation System Permit WQ0000884. Sanitary wastewater is pretreated in a 100,00o gallon per day (GPD) package treatment plant which currently being replaced as of this report date. The new package plant consists of the following: • Mechanical bar screen, • 25,000 gallon aerated equalization tank • Dual train 37,500 gallon each aeration tanks • Dual train 22,000 gallon each clarifiers, and • Associated piping, valves, and controls. Treated sanitary wastewater is discharged to the 13 million gallon (MG) lagoon which is part of the industrial wastewater plant described below. The industrial wastewater treatment plant consists of the following: • 1 MG flow equalization tank with mixers • Two dissolved air flotation (DAF) units with polymer feed • A DAF sludge pump station • DAF sludge storage tank • DAF sludge decant observation tank • 13 MG aerated lagoon with five 6o HP surface aerators • 41 MG holding lagoon with three 20 HP surface aerators • Chlorine disinfection, and • Associated piping, valves, and controls. Upgrades to the wastewater treatment system have been continuously performed by Butterball within the past 8 years to improve operation and performance of the plant and reduce loading on the spray irrigation fields. In 2011, Butterball began using peracetic acid in the production facility which resulted in lower wastewater effluent volumes. In 2011 Butterball also upgraded the DAF and offal system to improve performance of the wastewater treatment system, in particular to enhance nitrogen, phosphorous, suspended solids, and organics removal. Effluent from the 41 MG lagoon is pumped via four 10o HP pumps and two 5o HP booster irrigations to the spray irrigation system. The spray irrigation system is currently permitted for 556.88 acres with 35 fields, which includes 73.7o acres of newly permitted fields. These fields added by Butterball in 2017 in order to upgrade and expand the irrigation system to reduce loading on the existing fields. The additional acreage will allow for existing fields to be periodically removed from service to perform maintenance activities. Five of the new fields (i3A (an expansion of 13), 14,15C,16, and 18) were constructed and brought online in 2018 for a cumulative additional acreage of 48.66 acres. Six of the fields (15A,15B,177A,17B,17C, and 17D) with a cumulative acreage of 25.04 acres have been permitted but have yet to be constructed. A site plan for the land application system is provided as the attached Figure 1. In addition to the 2017 spray irrigation system upgrade, Butterball again modified the permit to upgrade the WWTP in 2018. This upgrade, which is currently under construction, includes replacement and enhancement of the sanitary wastewater pretreatment system to increase nitrogen, phosphorous, suspended solids, and organics removal and thereby reduce loading on the fields. Recent permit issuances included a new requirement for Butterball to submit an annual report summarizing any exceedances of permitted monitored well limits and corrective action taken. This requirement is found in Section I(6) of the most recent issuance of WQ0000884 (May 11, 2018). This report serves as the first submittal of an annual report to satisfy this requirement. A deadline for the first and subsequent annual reports was not explicitly provided in the permit. During a conference call with NC Department of Environmental Quality representatives, Butterball and Dewberry on November 7, 2018, a submittal date of March 1, 2019 was agreed upon for the first reporting period of January 1, 2018 — December 31, 2018. Subsequent annual reports, as long as required by the permit, will be submitted by March 1 each year. 2of8 1_ Dewberryw Groundwater Monitoring Well Data 2018 Monitoring Well Data Table 1 summarizes the monitoring well data collected during this reporting period January 1, 2018 — December 31, 2018. Analysis of 2o18 data in the context of historical data is provided in subsequent sections. In 2o18, exceedance of groundwater standards was observed in three wells for two parameters. An exceedance of the nitrate standard was observed in MW-27 during the January 2018 sampling event and in MW-4o during the May 2018 sampling event. In MW-38, an exceedance of the total dissolved solids (TDS) standard was observed in January 2018 and an exceedance of the nitrate standard was observed in January and May 2o18. Twelve monitoring wells did not experience exceedances of the groundwater standards for any parameter during 2o18 sampling events. No exceedances were observed for fecal coliform, ammonia -nitrogen, nitrite -nitrogen, and chloride in any of the wells in 2018. Historical Data Analysis Monitoring well sampling results from 2oo8-2oi8 were analyzed in order to evaluate trends in groundwater results. This ten year period was selected as operations at the Butterball facility prior to 2008 were different enough from current operations that a comparative analysis is less meaningful. Table 2 attached presents a summary of parameter exceedances by year and monitoring well. The chloride groundwater standard of 250 mg/l was exceeded in MW-27 in 2oo8. Chloride has not exceeded the standard during any other sampling events since 2oo8 and therefore will not be discussed further in this report. The total dissolved solids (TDS) groundwater standard of 500 mg/l was exceeded in five monitoring wells in 2oo8 (MW-23, MW-24, MW-27, MW-30, and MW-34). An exceedance of the TDS groundwater standard occurred in 2015 in MW-21; however, this is an upgradient well and is not impacted by irrigation activities. The TDS groundwater standard has been exceeded in MW-38 during 7 of the past 8 years. Additional analysis of the TDS results in MW-38 will be addressed below. The nitrate groundwater standard of io mg/l was exceeded in MW-38 in at least one sampling event per year from 2011-2018. MW-27 has also experienced consistent exceedances of the nitrate groundwater standard. MW-38 and MW-27 nitrate results will be analyzed in additional detail below. Nitrate exceedances in other wells have been sporadic, do not represent a trend, and therefore will not be analyzed in additional further in this report. Butterball currently monitors 15 wells which include review boundary and compliance boundary wells. Review boundary is defined as a boundary around a permitted disposal facility, midway between a waste boundary and a compliance boundary at which groundwater monitoring is required (15A NCAC 02L.0102). Compliance boundary is defined as a boundary around a disposal system at and beyond which groundwater quality standards may not be exceeded (15NCAC 02L.0102). With the exception of MW-40, all groundwater exceedances since 2oog have occurred have been observed in review boundary wells. An exceedance of groundwater standards at a review boundary well is not necessarily indicative of an exceedance at the compliance boundary or at the Butterball property line. Corrective action taken by Butterball to address exceedances at the review boundary wells are described herein. It should be noted that MW-40, which was installed in 2017, is a compliance boundary well but it is downgradient of Fields 15A and 15B which have not been constructed. Total Dissolved Solids The TDS concentration in MW-38 has exceeded the groundwater standard of 500 mg/l in io of the 23 samples collected from 2011-2018. Figure 1 presents the MW-38 TDS groundwater concentration and the cumulative mass of TDS applied to the Fields iA, 1B, and 1C which are immediately upgradient of MW-38. 3of8 Dewberr W- Figure 1. MW-38 TDS Analysis 9,000 8, 000 7,001) 6,000 5,000 4,000 3,000 2,000 1, 000 700 600 500 400 0 300 6 u zoo 100 o - 1/1/2011 1/1/zolz 1/1/2013 1/1/2014 1/1/z015 1/1/2016 1/1/2017 1/1/2018 Mass of TO SApplied to 1A, 1B, 1C-MW-38TOS Concentration 30 per. Mov. Avg. (Mass of TDS Applied to SA, 1B, SC) The MW-38 groundwater concentration appears to correlate fairly well to the mass of TDS applied to Fields iA,1B, and 1C. The decline in MW-38 TDS concentration observed in January 2014, September 2016, and September 2018 are preceded by decreases in the mass of TDS applied to iA, iB, and X. In addition, the increase in MW-38 concentration observed in January and May 2017 are preceded by an increase in the TDS mass applied to these fields. The MW-38 TDS concentration appears to be impacted by operation of the sprayfields. Ongoing activities to address this impact are address in the Corrective Action section. Nitrate Nitrate has consistently exceeded the groundwater standard in MW-27 and MW-38. MW-38 is downgradient of fields 1A,1B, and 1C. These three fields collectively represent 112.82 acres which is 21% of the total active sprayfield area. MW-27 is downgradient of fields 7 and 7A. These two fields collectively represent 15.69 acres which is 2.9% of the total active sprayfield area. Active area refers to the 531.84 acres that have been constructed to date. Attachment A presents a map showing the average nitrate concentration at each well across the Butterball site. Attachment A demonstrates that exceedance of nitrate groundwater standards is not a wide -spread issue at the site but rather is isolated to two monitoring wells, MW-27 and MW-38. A historical analysis of MW-38 and MW-27 nitrate concentrations versus loading to upgradient fields is presented below. Figure 2 presents the MW-38 nitrate groundwater concentration and the cumulative mass of total nitrogen applied daily to the Fields iA, iB, and 1C. 1 4of8 D e w b e r r 2Soo 2,000 l,soo 1,000 500 0 1/1/2011 i-mure 1. MVV-3b Nitroqen Analysis 1/1/2012 1/1/2013 1/1/2014 1/1/2015 1/t/2016 1/1/2017 1/1/201a � Mass TN Applied to lit, 1B, 1C —MW-3a Nd.tcNCo —t.tbo ......• 30p=r.M—.A�g.(Ma,,TNAppliedto IA,1B,1C) 90 ao - 70 60 E s0 — 40 V 30 20 10 The MW-38 nitrate concentration correlates at times with operation of the fields 1A, ill, and 1C. Decreases in nitrate concentration observed in September 2o16 and May 2o18 are preceded by decreases in the mass of TN applied to these fields. However, the trend in MW-38 and TN loading to fields 1-A, ill, and 1C do not always correlate. An increase in nitrate concentration observe in May 2o16 and September 2017 are preceded by periods of declining nitrogen loading on the fields. In addition, the nitrate concentration declined continuously from September 2013 through September 2014 during a period when nitrogen loading on the fields was continuously increasing. Figure 3 presents the MW-27 nitrate groundwater concentration with the total mass of total nitrogen applied to the Fields 7 and 7A. 5of8 D e w b e r r 700 600 500 400 300 200 100 0 1 1/1/20M 1/1/20M 1/1/2010 Figure :i. MVV-17 Nitrogen Analysis it f ii 1/1/2011 1/1/2012 1/1/2013 111/2014 1/1/2015 V112016 1/1/2017 1/1/2018 � Mass Applied io Hl Ids and 7A -MW-27 NKra> -N Concentration ......• 30 per. Mov. Avg. (Mass Applied W Fields 7 and 7A) 45 40 35 30 2s E 20 y J is 10 MW-27 nitrate results show significant variability over time and do not correlate well with the nitrate mass applied to upgradient fields 7 and 7A. The MW-27 nitrate concentration declined significantly from May 2oo8 to September 2oo8 during a period when nitrogen loading to the upgradient fields was relatively stable. In addition, the MW-27 nitrate concentration decreased significantly from May 2015 to September 2015 during a period when the nitrogen loading to upgrade fields was increased. The MW-27 concentration increased sharply in September 2017 to January 2018 without a corresponding increase in the total nitrogen loading to upgradient fields. MW-38 and MW-27 nitrate concentrations do not correlate well to the mass of nitrogen applied to the fields. It is not clear at this time what is causing nitrate groundwater standard exceedances in MW-27 and MW-38; however, it is likely a combination of multiple factors such as historical operation of the fields, precipitation, background nitrate from upgradient agricultural sources, and wastewater composition including parameters such as biochemical oxygen demand and salts. Salts applied to the fields can impact infiltration rates, which can impact treatment efficiencies in the system. Biochemical oxygen demand must be available for denitrification of nitrate to occur within the soil matrix. Maintenance activities described below are intended to address salt build up in the fields and improve infiltration rates. 6of8 Dewberry Corrective Action Butterball has undertaken multiple steps to address groundwater standard exceedances for nitrate and TDS in review boundary well MW-27 and review boundary well MW-38. In 2017, Butterball expanded and upgraded their irrigation system to permit an additional 73.7 acres of irrigable acreage. This additional acreage has allowed Butterball to reduce hydraulic and constituent loading on the fields. Currently, Butterball has constructed 48.66 acres of the new fields and began using the additional area in 2018. Prior to the installation of the new fields, the average daily volume applied to Fields 1A,1B, and iC was 320,000 gpd from 2oo8 - 2017. In 2018, the average daily volume applied was 233,000 gpd, which represents a 27% reduction. As demonstrated in Figure 1 and 2, the TDS and nitrate concentrations in MW-38 have steadily declined during 2018. Loading to Fields 7 and 77A, upgradient of MW-27 were not reduced below historical average levels in 2o18. This is likely due to the additional loading required to address water accumulated from Hurricane Florence which occurred in September 2018 and the removal of Field 1B for maintenance. In addition, Butterball will use the additional acreage to periodically remove fields from service for maintenance activities. In September 2018, Field 1B, the single largest permitted field, was removed from service and has undergone a series of disking and idle periods in order to allow for degradation of organic matter that has accumulated in the field. In addition to disking and idle periods, gypsum addition occurred in January 2019 to improve the exchangeable sodium percentage of the fields. These maintenance activities have continued into 2019 for Field 1B and the results will be presented in the 2019 Annual Report submitted in 2020. Interim results indicate a >500% increase in the infiltration rates within Field 1B and suggest that the selected maintenance is likely improve performance of the field and reduce the potential impact of irrigation on MW-38 results. Butterball is currently replacing the sanitary package pretreatment plant. This upgrade, which is currently under construction, will enhancement the sanitary wastewater pretreatment system to increase nitrogen, phosphorous, suspended solids, and organics removal and thereby reduce loading on the fields. Startup is anticipated during the second quarter of 2019. Butterball will closely observe if the additional irrigable acreage, maintenance activities on Field 1B, and upgraded sanitary pretreatment plant will have an impact on MW-27 and MW-38 nitrate and TDS results. 7of8 I_� Dewberry Conclusion Groundwater monitoring wells have demonstrated periodic exceedances of nitrate and TDS standards at the Butterball facility. TDS exceedances have been isolated to MW-38 since 2009. MW-38 TDS results correlate with operation of Fields 1A,1B, and 1C. Field 1B is under maintenance as of this report date. A steady decline in TDS concentrations in MW-38 were observed in 2018, likely as a result of the reduced loading due to addition of new fields. Butterball will observe the TDS results during 2019 to evaluate if maintenance activities have continued to impact TDS results in MW-38. Nitrate exceedances have sporadically occurred in multiple monitoring wells across the site but have largely been isolated to review boundary wells MW-27 and MW-38. Attachment A demonstrates that exceedance of nitrate groundwater standards is not a wide -spread issue at the site but rather is isolated to two monitoring wells, MW-27 and MW-38. Analysis of historical nitrogen loading to upgradient fields for each monitoring well does not demonstrate strong correlation with the MW-27 and MW-38 nitrate concentrations. However, the groundwater nitrate concentration is impacted by a variety of factors such as infiltration rates, availability of organic constituents to support denitrification in the soil matrix, and the nitrogen available to support crop production. Butterball has permitted 73.7 acres of additional irrigable acreage in order to reduce hydraulic and contaminant loading on existing fields. The additional acreage will also allow for existing fields to be removed from service periodically for maintenance. New fields were made operational in 2018, allowing Butterball to initiate maintenance activities for Field 1B the same year. Since initiating operation of the new fields, Butterball has reduced loading to Fields 1A,1B, and 1C by 26%. Butterball is currently undertaking maintenance activities at Field iB. Butterball is targeting Field 1B initially as it is the single largest field and is upgradient of MW-38. Maintenance activities were initiated in September 2o18 and are ongoing as of the date of this report. Butterball will observe the impact of maintenance activities on MW-38 results and determine if similar activities are warranted in other fields. The field testing results and impact to MW-38 will be discussed in the 2019 Annual Groundwater Report. Butterball is currently taken actions to address groundwater exceedances. Improvement has already been observed in MW-38 monitoring results with the reduced loading from addition of new fields. Interim results of maintenance on Field 1B suggests that field performance will be improved by the actions taken. Field 1B maintenance should be completed and the impact of these activities should continue to be evaluated. 8of8 Table 1 2018 Monitoring Well Sampling Results Butterball, Mt Olive, NC Sampling Date pH Total Organic Carbon Fecal Coliform Total Dissolved Solids Total phosphorus Ammonia-N Nitrate-N Nitrite-N Chloride Units - s.u. mg/I MPN mg/I mg/I mg/I mg/I mg/I mg/I Groundwater Standard - 6.5 - 8.5 - - 500 - 1.5 10 - 250 MW-22 11-Jan-18 5.12 2 <1 61 0.04 <0.2 0.14 0.02 12 4-May-18 4.45 1.7 <1 91 0.4 <0.2 5.72 0.02 22 27-Sep-18 4.82 0.5 <1 83 0.05 <0.2 6.94 0.02 17 11-Jan-18 4.45 3.2 <1 251 0.99 <0.2 0.4 0.02 110 MW-23 4-May-18 5.14 3.9 <1 110 0.34 <0.2 0.18 0.07 6 27-Sep-18 5.21 4.9 <1 37 0.25 <0.2 0.16 0.02 7 MW-24 11-Jan-18 4.82 0.5 <1 119 0.1 0.02 0.65 0.02 32 4-May-18 5.21 1 <1 42 0.16 0.02 5.75 0.02 10 27-Sep-18 6.44 8.8 <1 71 0.59 0.02 0.6 0.05 5 11-Jan-18 5.48 1.5 <1 205 0.57 <0.2 20.7 0.02 96 MW-27 4-May-18 5.4 2.3 <1 107 0.04 0.4 1.79 <.02 35 27-Sep-18 6.48 5.5 <1 94 0.27 0.2 1.69 <.02 13 MW-28 11-Jan-18 5.87 0.5 <1 79 0.14 <0.2 0.11 <.02 19 4-May-18 5.78 1.6 <1 69 0.19 <0.2 7.28 <.02 5 27-Sep-18 6.94 1.7 <1 55 0.04 <0.2 1.6 <.02 5 11-Jan-18 4.9 3 <1 50 0.04 <0.2 0.8 <.02 13 MW-29 4-May-18 4.86 0.8 <1 65 0.34 <0.2 1.56 <.02 13 27-Sep-18 4.63 1.6 <1 65 0.34 <0.2 1.56 <.02 13 11-Jan-18 5.65 0.8 <1 82 0.84 <0.2 0.22 <.02 5 MW-34 4-May-18 5.49 1.8 <1 66 0.07 <0.2 2.5 <.02 44 27-Sep-18 5.77 3.3 <1 84 0.04 <0.2 4.75 <.02 6 11-Jan-18 6.67 1.5 <1 67 0.04 <0.2 0.13 <.02 5 MW-35 4-May-18 5.35 1.4 <1 27 0.08 <0.2 0.59 <.02 5 27-Sep-18 6.03 0.8 <1 41 0.04 <0.2 1.43 <.02 5 11-Jan-18 6.94 0.6 <1 64 0.05 <0.2 0.14 <.02 9 MW-36 4-May-18 5.05 2.8 <1 46 0.19 <0.2 2.37 <.02 20 27-Sep-18 6.09 1.2 <1 48 0.04 <0.2 1.77 <.02 8 MW-37 11-Jan-18 4.3 0.5 <1 107 0.3 <0.2 0.24 <.02 29 4-May-18 4.46 0.8 <1 96 0.11 <0.2 4.59 <.02 30 27-Sep-18 4.04 0.5 <1 100 0.07 <0.2 4.00 <.02 29 11-Jan-18 5.05 1.3 <1 523 0.26 <0.2 55.6 0.02 132 MW-38 4-May-18 4.6 1 <1 386 0.5 <0.2 20.6 0.02 197 27-Sep-18 5.5 0.5 <1 129 0.3 <0.2 3.38 0.02 7 MW-39 11-Jan-18 4.04 0.5 <1 72 0.52 <0.2 0.78 0.02 7 4-May-18 4.26 0.6 <1 57 0.5 <0.2 7.62 0.03 156 (CP-1) 27-Sep-18 3.78 0.9 <1 70 0.04 <0.2 9.93 0.02 0.9 11-Jan-18 5.27 0.6 <1 232 17.2 <0.2 1.65 0.02 63 M W-40 4-May-18 5.28 0.9 <1 262 4.07 <0.2 16.9 0.03 64 (CP 2) 27-Sep-18 6.22 0.5 <1 8 0.12 <0.2 0.18 0.02 5 M W-41 11-Jan-18 5.05 0.5 <1 59 1.41 <0.2 0.17 0.02 16 4-May-18 4.74 0.5 <1 33 0.26 <0.2 1.27 0.02 6 (CP-3) 27-Sep-18 4.77 0.5 <1 44 0.04 <0.2 5.93 0.02 7 11-Jan-18 4.72 1 <1 45 5.71 <0.2 0.02 0.02 7 M W-42 4-May-18 5.06 1.7 <1 50 1.49 <0.2 0.2 0.02 5 (CP-4) 27-Sep-18 4.54 1.6 <1 52 0.29 <0.2 0.11 0.02 14 Denotes an exceedance of groundwater standard. 2/27/2019 - Dewberry Table 2. 2008-2018 Groundwater Standard Exceedances Butterball, Mt Olive, NC Monitoring Well Boundary Type Location 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 MW-21 Not Applicable Upgradient TDS MW-22 Not Applicable Upgradient MW-23 Review Downgradient NitrDS Nitrate-N Nitrate-N MW-24 Review Downgradient NitrDS Nitrate-N MW-27 Review Downgradient TDS Nitrate-N Chloride Nitrate-N Nitrate-N Nitrate-N Nitrate-N Nitrate-N Nitrate-N MW-28 Not Applicable Upgradient Nitrate-N Nitrate-N MW-29 Compliance Downgradient MW-31 Review Downgradient MW-32 Review Downgradient MW-33 Review Downgradient MW-34 Review Downgradient NitrDS Nitrate-N Nitrate-N MW-35 Compliance Downgradient MW-36 Compliance Downgradient MW-37 Review Downgradient Nitrate-N Nitrate-N Nitrate-N MW-38 Review Downgradient TDS Nitrate-N TDS Nitrate-N TDS Nitrate-N TDS Nitrate-N Nitrate-N TDS Nitrate-N TDS Nitrate-N TDS Nitrate-N MW-39 Review Downgradient MW-40 Compliance Downgradient Nitrate-N MW-41 Review Downgradient MW-42 Compliance Downgradient Indicates the monitoring well was not in-service. Acronyms TDS Total Dissolved Solids MW Monitoring Well 2/27/2019 *•Dewberry 17 MONITORING WELL INFORMATION TABLE EX. FIELD INFORMATION TABLE Dewberry i Monitoring Well Boundary Type Location MW-21 Not Applicable Upgradient MW-22 Not Applicable Upgradient MW-23 Review Dow ngradient MW-24 Review Dow ngradient MW-27 Review Dow ngradient MW-28 Not Applicable Upgradient M W-29 Compliance Dow ngradient M W-31 Review Dow ngradient MW-32 Review Dow ngradient M W-33 Review Dow ngradient M W-34 Review Dow ngradient MW-35 Compliance Dow ngradient MW-36 Compliance Dow ngradient MW-37 Review Dow ngradient MW-38 Review Dow ngradient MW-39 (CP-1) Review Dow ngradient MW-40 (CP-2) Compliance Dow ngradient MW-41 (CP-3) Review Dow ngradient MW-42 (CP-4) Compliance Dow ngradient FIELD NO. LATITUDE LONGITUDE NET ACREAGE 01 A 35.151400° 77.908300° 26.75 AC 01 B 35.153900* -77.913600' 74.59 AC 01 C 35.153900' 77.908600' 1 1 .48 AC 02A 35.144200* -77,906100` 18.61 AC 02B 35.146900' -77.905300' 10.94 AC 02C 35.149200' -77.903900' 9,16 AC 03 35.147200* 77.908300' 15.66 AC 05 35.143600' 77.919400' 18.03 AC 07 35.140000* -77.905000' 9.57 AC 07A 35.138300' -77.905800' 6.12 AC 08A 35.156100* -77.923900° 30.38 AC 08B 35.159200' 77.921700' 34.84 AC 08C 35.161700* -77.920800' 10.75 AC 09A 35.157500* -77.928300` 30.38 AC 09B-Al 35.163900* -77.927200' 4.25 AC 09B-A2 35.163900' -77.926400` 3.85 AC 09B B1 35.158100' 77.926100' 1.75 AC 09B-B2 35.158900' -77.926100' 11.01 AC 09C 35.165000° -77.927200' 21.48 AC 10A 35.156400' 77.931100' 15.19 AC 10B 35.158600* -77.931400' 31.42 AC 10C 35.163900° 77.929200' 19.80 AC 11 35.159700' -77.936900' 26.13 AC 12 35.162500° -77.936400' 17.78 AC 13 35.166400' 77.930300' 26.62 AC 14 35.170542* -77.931467` 12.07 AC 15C 35.157278* 77.912900" 18.03 AC 16 35.152978' -77.926786" 12.95 AC 18 35.157242* -77.932431 ° 2.25 AC TOTAL CURRENT IRRIGABLE ACREAGE 531.84 AC FUTURE FIELD INFORMATION TABLE FIELD NO.* LATITUDE LONGITUDE NET ACREAGE FUTURE 15A 35.160769° 77.918903' 3.71 AC FUTURE 15B 35.161747' -77.917756` 0,72 AC FUTURE 1 7A 35.1 52997' 77,9321 61 ° 14.95 AC FUTURE 17B 35.154983* -77.931942` 0.36 AC FUTURE 17C 35.154122' -77.934578' 0.72 AC FUTURE 17D 35.156922* -77.937614' 4.58 AC TOTAL ADDITIONAL IRRIGABLE ACREAGE 25.04 AC FIELDS HAVE BEEN PERMITTED, BUT HAVE NOT BEEN CONSTRUCTED TO DATE. IRRIGABLE ACREAGE SUMMARY TABLE TOTAL CURRENT IRRIGABLE ACREAGE 531.84 AC TOTAL ADDITIONAL IRRIGABLE ACREAGE 25.04 AC TOTAL IRRIGABLE ACREAGE 556.88 AC Average Monitoring Well Groundwater Concentration 2008=2018 < 10 mg/I Nitrate > 10 mg/I Nitrate LEGEND: PROPERTY LINE APPLICATION AREA 125' REVIEW BOUNDARY 250' COMPLIANCE BOUNDARY (50' FROM ADJACENT RIGHT-OF-WAY AND NON-BUTTERBALL PROPERTY BOUNDARIES) MONITORING WELL (MONITORING WELLS DENOTED WITH (A) HAVE BEEN ABANDONED) CONTROL POINT "I 0 1. LOCATION OF MONITORING WELLS, EXCEPT CP-1 THROUGH CP-4, IS BASED ON A SURVEY PERFORMED BY DEWBERRY ENGINEERS INC. FROM AUGUST 24, 2015 TO OCTOBER 23, 2015. 2. LOCATION OF MONITORING WELLS CP-1 THROUGH CP-4 IS BASED ON A SURVEY PERFORMED BY DEWBERRY ENGINEERS INC. DATED DECEMBER 11, 2017. 3. HORIZONTAL CONTROL (NAD83) AND VERTICAL CONTROL (NAVD88) ESTABLISHED BY GPS OBSERVATIONS AND COMPUTED USING NORTH CAROLINA GEODETIC SOCIETY VIRTUAL REFERENCE STATION SERVICE (VRS). CONTROL POINTS ARE AS FOLLOWS: TRV#1 LAT: 35.158095 LONG:-77.932035 TRV#2 LAT: 35.158795 LONG:-77.932615 4. NORTH ARROW IS GRID NORTH AND ALL DISTANCES ARE GROUND DISTANCES. 5. PROPERTY OWNERS PRESENTED HEREIN ARE BASED ON INFORMATION OBTAINED FROM DUPLIN COUNTY GIS ACCESSED ON SEPTEMBER 26, 2016. DOCUMENTATION WAS PROVIDED TO NC DEPARTMENT OF ENVIRONMENTAL QUALITY ON MARCH 3, 2017 WITHIN THE PERMIT MODIFICATION APPLICATION WHICH DEMONSTRATES PARCELS IDENTIFIED BY DUPLIN COUNTY GIS AS OWNED BY CAROLINA TURKEYS ARE OWNED BY BUTTERBALL. Dewberry Engineers Inc. 2610 WYCLIFF ROAD SUITE 410 RALEIGH, NC 27607 PHONE: 919.881.9939 FAX: 919.881.9923 NCBELS #F-0929 2 W z O a U J a a Q z a J SEAL SEAL KEY PLAN W z J J N ~ J J M ti w "J00N JaNV a W00 a0°Xz 0o mW0� =o LU HF- OZ cvn � o D IM < o m W (D Z z O SCALE 0 200 400 600 %MiW!!1 Feet 1 inch = 400 feet No. I DATE I BY I Description REVISIONS DRAWN BY APPROVED BY CHECKED BY DATE 02/14/2019 TITLE ATTACHMENT A PROJECT NO. 50108516 SHEET NO.