The URL can be used to link to this page

Home My WebLink AboutNC0025445_Pretreatment_Annual Report_20240305 CITY ADMINISTRATION MAYOR i Sexton GARY B. BETTS, SR. R Interimrim City Manager/ Assistant Chief of Police BOARD OF ALDERMEN RAN DLEMAN MIKE DAWKINS Steven B. Leonard Pro-Tempore •NORTH CAROLINA • Director of Public Safety/Chief of Police MELISSA BLALOCK 204 S.MAIN STREET Elizabeth H.Sechriest NANCY HENDERSON RANDLEMAN,NC 27317 Finance Director/HR Specialist KIMMY WILLIAMS P:(336)495-7500 STEVE GROOMS F:(336)495-7503 Connie Peeler WWW.CITYOFRANDLEMAN.COM City Clerk,CMC,NCCMC February 22, 2023 RECEIVED Mr. Michael Montebello NCDEQ/DWQ/Municipal Unit 1617 Mail Service Center MAR 0 5 2024 Raleigh, NC 27699-1617 RE: 2023 Pretreatment Annual Report, Randleman NC0025445 NCDEQIDWRINPDES Dear Mr. Montebello: Enclosed, please find the 2023 Pretreatment Annual Report for the City of Randleman, NC0025445. Please note that there are currently no Significant Industrial Users on the Randleman system due to business closures as discussed in the Narrative section. I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations. Should you have any questions or require additional information, please do not hesitate to contact me at the phone number listed below. Thank you, /6119/1---- Garry Michael Glass Operator in Responsible Charge, Operator Certification#1000472 City of Randleman Wastewater Treatment (336)498-2254 p*o L f,k9s R =1 RECEIVED MAR 05 2024 NCDEQ/DWR/NPDES Pretreatment Annual Report 2023 CITY OF RANDLEMAN, NC NC0025445 491$1 R = PAR: Narrative 2023 and PPID Edits �°s PAR : PPS 2023 PNOLEM9 Q Z R '•,c..° CITY OF R:A\DLENI k\ Pretreatment Annual Report 2023 Narrative GENERAL INFORMATION: General Permit Information: • The WWTP is operating under the permit effective September 1",2023. • For the months of March and April 2023,the WWTP was out of compliance for lead,effluent monthly average.The influent values of lead spiked on several days.The POTW has previously conducted diagnostic sampling in the collection system but has been unable to identify a point source. Elevated lead values have been detected in the collection system on one line that serves only domestic connections.The POTW plans to conduct additional collection system monitoring to attempt to locate this source,however,potential dumping of lead-containing waste by a non-SIU is suspected. In addition,with the loss of the City's one main industry,flow values are down significantly,and concentration values may be reflecting this volume loss. • The WWTP was non-compliant for fecal coliform for the last week of August 2023.This is not believed to be due to any pretreatment issue.The plant received approximately 5 inches of rain over an 8-day period during the fecal coliform non-compliance. • A review of LTMP data indicates that overall removal rates remain similar to the previous year.Please see the included LTMP data summary for 2023. General Program Information: • As discussed in the last Pretreatment Annual Report,on November 30th,2022,the only remaining IUP for the City of Randleman,Deep River Dyeing, Inc.,was terminated due to the industry closure. • The City has continued to maintain its Pretreatment Program and wishes to do so going forward. • The City submitted an Industrial Waste Survey which was received by DWR on 7/18/2023.Please note this correction on the Pretreatment Program Information Sheet,which can be found behind this Narrative in this report. • The City submitted an updated LTMP which was received by DWR on 9/1/2023.Please also note this correction on the Pretreatment Program Information Sheet. • The Pretreatment Program was inspected by the NCDEQ regional office on 9/7/2023.The Program was found to be in compliance. Please also note this correction on the Pretreatment Program Information Sheet. • Additional corrections were made to the Pretreatment Program Information Sheet: • The HWA was received by DWR on 6/6/2022. • The number of SIUs for the City is currently zero,not 1. • Tricia Lowery is no longer the regional contact for Randleman. SIU INFORMATION: • There are no SIUs in Randleman currently. • Please note that there is no applicable EL&MR for this report,and an IDSF is not included in this report due to no current SIUs. City of Randleman PAR Narrative 2023 , 1 Pretreatment Program Info Database printed on: 12/22/2023 for Program Name Randleman cIWC%at 7Q10 35.08 WWTP Name City of Randleman Stream Information Program Approval Date 06/30/1983 7Q10 Flow cfs/mgd 5 / 3.23 1 Q 10 Flow cfs/mgd 4.17 / 2.69 Pretreatment Status Full Stream Classification C Region WSRO Basin Number CPF08 County Randolph Receiving Stream Name DEEP RIVER NPDES Number NC0025445 J Last PAR Rec 02/27/2023 PAR Due Date 03/01/2024 mercury NPDES Effective Date 08/01/2017 1631 NPDES Expire Date Current Fiscal ,�3120-22 PCI done 9/7/23 required P 08/31/2021 Year PCI Done POTW is Primary WWTP TRUE Last Audit on 05/13/2021 Audit Year Nex125/26 yes Design Flow mgd 1.7450 %Design mgd is SIU permitted 34.38 Permitted SIU flow(mgd)[Pt_SIU) .6 WW TP SIU's 1 Program SIUs 11 WWTP CIU's Program ClUs 0 HWA LTMP IWS SUO 44 ERP , 111, date Inactive Date Next Due 06/06/2022 06/30/2023 i here are Date Received by DWR 05/19/2017 09/16/2014- --Q310212048 01/03/2013 05/15/2020 currently zero Sills. Date Approved 08/16/2017 10/10/2011 05/25/2018 02/04/2013 08/11/2020 Adopt Date Requires�iWA received by UPdated LIMP IWS received by � WR 6/6/22 was DWR 7/18/23 Date Adopted 02/05/2013 Info in this Box from Pt Contacts WI/1.5 Date Date Date PT_Pro Attended Attended Attended Formal Name g.Prime Phonel ext Fax HWA Wksp IUP Wksp PAR Wksp Mr. Garry Michael Glass I 11(336)498-2254 I 1336-495-7503 II I I I = michaelglass816@gmail.com f Wastewater Director 204 South Main Street 27317 Ms. Lisa Osthues (Prim 11910-990-0329 , I II 10/29/2013 19/27/2011 I 2/5/2012 I lisaopretreat@gmail.com Environmental Program Manager 168 Nathan Dudley Rd 28328 J JPretreatment Related NOVs from DWQ , DWR Central Office Contact Pretreatment Staff 12/7/1998 11/20/98 PCI-incorrect comp judge,also Itmp DWR Regional Contact Tricia Lowery Tricia is no longer with the regional office. 1 Chapter 9, PAR Guidance Pretreatment Performance Summary (PPS) ) 1. Pretreatment Town Name: City of Randleman 2. "Primary" N PD ES Number NCOO 25445 or Non_Discharge Permit#if applicable=> 3. PAR Begin Date, please enter 01/01/yyyy 3._> 01/01/2023 4. PAR End Date, please enter 12/31/yyyy 4.=> 12/31/2023 5. Total number of SIUs, i nd udes CI Us 5.=> 0 6. Number of CI Us s.=> 0 7. Number of SlUswith no IUP, or with an expired IUP 7.=> 0 8. Number of SI Us not inspected by POTW 8.=> 0 9. Number of SIUs not sampled by POTW 9.=> 0 10. Number of SI Us in SNC dueto IUP Limit violations 10.=> 0 11. Number of SIUs in SNC due to Reporting violations 11.=> 0 12. Number of SIUs in SNC due to violation of a Compliance Schedule,CO,AO or smiles 12._> 0 13. Number ofClUsinSNC 13.=> 0 14. Number of SIUs induded in Public Notice 14.=> 0 15 Total number of SI Us on a compliance schedule, CO, AO or similar 15.=> 0 16. Number of N OV s, N N Cs or similar assesed to SIUs 16.=> 0 17. Number of Civil Penalties assessed to SIUs 17._> 0 18. Number of Criminal Penalties assessed to SIUs 18.=> 0 19. Total Amount of Civil Penal ti es Collected 19.=> $ 0 20. Number of I Us from which penalti es COI I ected 20.=> 0 Foot Notes: AO Administrative Order IUP Industrial User Pretreament Permit POTW Publicly Owned Treatment Works CIU Categorical Industrial User NNC Notice of Non-Compliance SIU Significaait Industrial User CO Consent Order NOV Noticeof Violation SNC Significant Non-Compliance IU Industrial User PAR Pretreatment Annual Repot PAR_PPS_2023 (Theo 112". 1!: r I.C" PAR: SNCR 2023 Pretreatment Annual Report(PAR) PAR covers this calendar yea=> 2023 Significant Non-Compliance Report(SNCR) Control Authority=Program=Town Name => City of Randleman WWTP=Wastewater Treatment Plant,use separate form for each WWTP. WWTP Name => Randleman WWTP SIU =Significant Industrial User NPDES# _> NC0025445 SNC=Significant Non-Compliance There are currently no permitted industries in Randleman A SNCR Form must be submitted with every PAR,please write"NO/7e" if you had No SlUsin SNC during calendar yea SNC? (Yes/No) I UP Pipe I ndu ry Name Parameter for each 6-month period. # # or"Reporting" Jan.-June July-Dec. Attach a copy of the Division's"SI Us in SNC Historical Report"for your POTW's SI Us behind this page. Is the database correct? Notify the Division of any errors! Datai a indicates SNC history for previous yeas. EVERY SNC M UST be explained in the Narrative, How was, is,or will it be resolved? REPEAT SN Cs are serious matters that MUST be expl ai ned i n the Narrative. PAR,SNCR,Randleman 2023 r i lt?"1/4R = PAR: AT 2023 1 Allocation Table Spreadsheet Instructions: Headworks last approved: 08/16/17 1)Applicable Values should be entered in the Heavy Bordered cells. Rest of worksheet is protected,password is"2". 2)Formulas are discussed in the Comprehensive Guidance,Chapter 6,Section C. Allocation Table updated: 11/30/22 3)HWA and AT worksheets in this workbook are linked. Pollutant Names,MAHLs,Basis,and Uncontrollable load in Permits last modified: 11/30/22 this AT worksheet are automatically entered from the HWA spreadsheet. This includes pollutant names in columns AT through BK. POTW=,Randleman NPOEstr>NC0025445 FLOW BOD TSS Ammonia Industry Type Renewwal Modification Date Permit Limits Permit Limits Permit Limits Permit Limits I UP INDUSTRY NAMES Permit Pipe of Effective Effective Permit Conc. Load Conc. Load Conc. Load Count co®e119alphah9idy) number number Industry Date Date Expires MGD gal/day mg/I lbs/day mg/I lbs/day mg/I lbs/day 1 �—, 2 3 , 4 5 6 7 8 9 1 ,0 Column Totals=> 0 0 0 Bps > NPDES Design Design Design MAHL from HWA(lbs/day)_> NPDES Permitted Flow=> 1.7450 2911 2620 160.09 Uncontrollable Loading(lbs/day)_> 0.4917 673 476 73.81 Total Allowable for Industry(MAIL)(lbs/day)_> _ 1.2533 2238 2144 86.27 Total Permitted to Industry(lbs/day)=> 0.0000 0 0 0.00 MAIL left(lbs/day)=> 1.2533 2238 2144 86.27 Percent Allow.Ind.(MAIL)still a✓ailable(%)_> 100.0% 100.0% 100.0% Percent MAHL still available(%)=> 76.9% 81.8% 53.9% 5 Percent MAHL(lbs/day)=> 0.0873 146 131 8.00 HWA.AT Randleman,Submitted June 6,2022.Updated November 30,2022. 2 Allocation Table Headworks last approved: 08/16/17 Allocation Table updated: 11/30/22 Permits last modified: 11/30/22 POTW-> Randleman NPDES#=>NC0025445 Arsenic Cadmium Chromium Copper Cyanide Lead Industry Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits IUP INDUSTRY NAMES Permit Pipe Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load Count (place Ilaaictzmid» numbs number mg/I lbs/day mg/I lbs/day mg/I lbs/day mg/I lbs/day . mg/I lbs/day mg/I lbs/day 1 2 I �- , 3 4 5 . 6 , 7 8 r , 9 r 10 - �� ColurmTotals=> 0.0000 t 0.0000 0.0000 0.0000 0.0000 0.0000 Cumul. Cumul. Sludge Sludge Bags=> Loading Loading Stream Std Stream Std Stream Std NPDES MAHL from HWA(lbs/day)=> 0.1192 0.0756 2.0125 0.9211 0.5312 0.3552 Uncontrollable Loading(lbs/day)_> 0.0123 0.0041 0.0160 0.1718 0.0299 0.1517 Tara)Allowable for Industry(MAIL)(lbs/day)_> 0.1069 0.0715 1.9965 0.7493 0.5012 0.2035 Total Permitted to Industry(lbs/day)=> 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 MAIL left(lbs/day)=> 0.1069 0.0715 1.9965 0.7493 0.5012 0.2035 Percent Allow.Ind.(MAIL)still available(%)_> 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% Percent MAHL still available(%)=> 89.7% 94.6% 99.2% 81.3% 94.4% 57.3% 5 Percent MAHL(lbsiday)_> 0.0060 0.0038 0.1006 0.0461 0.0266 0.0178 HWA.AT Randleman,Submitted June 6,2022.Updated November 30,2022. 3 Allocation Table Headworks last approved: 08/16/17 Allocation Table updated: 11/30/22 Permits last modified: 11/30/22 Fon,-Randleman NPDESN=>NC0025445 Mercury Mdybdenum Nidcd Selenium Silver Zinc Industry Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits Permit Limits IUP INDUSTRY NAMES Permit Pipe Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load Conc. Load Count (lime ill alit.bet,dr) number number mg/I lbs/day mg/I lbs/day mg/I lbs/day mg/I lbs/day mg/I lbs/day mg/I lbs/day 1 , 2 w 3 , 4 5 6 , 7 8 . 9 -� r , 10 Column Totals=> 0.000000 0.0000 0.0000 0.0000 0.0000 0.0000 Sludge Sludge Sludge AS/Nit/TF Ba3i > Stream Std Ceiling Ceiling Ceiling Stream Std inhibition MAHL from HWA(lbs/day)_> 0.000988 0.2259 0.9940 0.1988 0.0079 5.9940 Uncontrollable Loading(lbs/day)=> 0.000410 0.0451 0.0164 0.0135 0.0205 0.3363 Total Allowable for Industry(MAIL)(lbs/day)=> 0.000578 0.1808 0.9776 0.1853 -0.0126 5.6577 Total Permitted to Industry(lbs/day)=> 0.000000 0.0000 0.0000 0.0000 0.0000 0.0000 MAIL left(lbs/day)=> 0.000578 0.1808' 0.9776 0.1853 -0.0126 5.6577 Percent Allow.Ind.(MAIL)still available(%)=> 100.0% 100.0% 100.0%° 100.0% 100.0% 100.0 Percent MARL still available(%)_> 58.5% 80.0% 98.3% 93.2% -159.4% 94.4% 5 Percent MAHL(lbs/day)=> 0.000049 0.0113 0.0497 0.0099 0.0004 0.2997 HWA.AT Randleman,Submitted June 6,2022.Updated November 30,2022. 4 Allocation Table Headworks last approved: 08/16/17 Allocation Table updated: 11/30/22 Permits last modified: 11/30/22 POTW=>Randleman NPDES >NC0025445 Taal Nitrogen Taal Phoe. COD Industry Permit Limits Permit Limits Permit Limits IUP INDUSTRY NAMES Permit Rpe Conc. Load Conc. Load Conc. Load Count (Plume isdp,Etady) number number mg/I lbs/day mg/I lbs/day mg/I lbs/day 1 4909 2 3 4 5 7 8 9 10 Column Totals=> 0.00 0.00 4909.00 AS/Nit/TF Bag > inhibition MAHL from HWA(lbs/day)=> 2877.10 Uncontrollable Loading(lbs/day)=> 70.9435 13.85 Total Allowable for Industry(MAIL)(lbs/day)_> 2806.16 Total Permitted to Industry(lbs/day)_> _ 0.00 0.00 4909.00 MAIL left(lbs/day)=> 2806.16 Percent Allow.Ind.(MAIL)still available(%)=> 100.0% #VALUE! #VALUE! Percent MAHL still available(%)=> 97.5% #VALUE! #VALUE! 5 Percent MAHL(lbs/day)=> 143.85 HWA.AT Randleman,Submitted June 6,2022.Updated November 30,2022. ep+olE,ygs �M PAR: LIMP 2023 City of Randleman Summary of Long Term Monitoring for January 2023 BOD5 NH3-N Total Nitrogen TSS COD Phosphorus Cd Cr Ni mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Influent 115 23.7 34.1 144 247 3.79 < _ 0.002 <_ 0.005 < 0.010 Effluent 2.4 < 0.1 20.0 3 25 3.38 < 0.00015 < 0.002 0.0024 %removal 98% * 100% 41% 98% 90% 11% ** 67% ** 47% ** 42% PQL 2 0.1 NS 2.5 NS NS 0.002 0.005 0.01 Pb Cu Zn CN- Mo Hg As Se Ag mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Influent 0.047 0.040 0.085 < 0.005 < 0.005 < 0.0002 _ < 0.010 0.034 0.0078 Effluent 0.0068 0.020 0.063 < 0.005 0.003 0.00000579 < 0.002 < 0.001 < 0.0005 %removal 86% 50% 26% ** 69% ** 33% ** 96% ** 45% ** 50% ** 50% 0.0002 mg/L PQL 0.01 0.002 0.01 0.005 0.1 and 1 nglL _ 0.01 0.01 0.01 * using 1/2 the detectable levels and Default Data for BDL samples as described in CH.5 Sect.E of the Comprehensive Guide for North Carolina Pretreatment Programs **Literature Value ***Please note:the lowest TSS detection level for the certified parameter is 2.5 mg/L per NCDENR Laboratory Division NT=Not Tested NS=No PQL set for LTMP plan LTMP Jan 2023 City of Randleman Summary of Long Term Monitoring for Apr-23 BOD5 NH3-N Total Nitrogen TSS COD Phosphorus Cd Cr Ni mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Influent 90.4 21.2 32.3 148 333 3.58 _ < 0.002 < 0.005 < 0.010 Aeration Basin NT < 10 NT NT NT NT < 0.002 0.023 0.031 Effluent 2.9 < 0.1 7.8 < 2.5 62 1.6 < 0.00015 < 0.002 0.0015 %removal 97% * 99.8% 76% * 99% 81% 55% ** 67% ** 47% ** 42% PQL 2 0.1 NS 2.5 NS _ NS 0.002 0.005 0.01 Pb Cu Zn CN- Mo Hg As Se Ag mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Influent 0.027 0.030 0.101 < 0.005 0.009 < 0.0002 < 0.010 < 0.010 < 0.0005 Aeration Basin 1.05 1.07 0.875 NT NT 0.0015 < 0.010 NT NT Effluent 0.0056 0.009 0.037 < 0.005 0.002 1.9E-06 < 0.002 0.001 < 0.0005 %removal 99% 70% 63% ** 69% ** 33% *" 96% ** 45% ** 50% ** 50% 0.0002 mg/L PQL 0.01 0.002 0.01 0.005 0.1 and 1 ng/L 0.01 0.01 0.001 * using 1/2 the detectable levels and Default Data for BDL samples as described in CH.5 Sect.E of the Comprehensive Guide for North Carolina Pretreatment Programs **Literature Value ***Please note:the lowest TSS detection level for the certified parameter is 2.5 mg/L per NCDEQ Laboratory Division LTMP April 2023 NT=Not Tested NS=No PQL set for LTMP plan City of Randleman Summary of Long Term Monitoring for Jul-23 BOD5 NH3-N Total Nitrogen TSS COD Phosphorus Cd Cr Ni mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Influent 178 24.0 42.4 147 221 4.22 < 0.002 0.006 < 0.010 Effluent < 2.0 < 0.1 11.7 < 2.5 < 15.0 3.08 < 0.00015 < 0.002 0.0026 removal * 99% * 99.8% 72% * 99.1% * 97% 27% ** 67% ** 47% ** 42% PQL 2 0.1 NS 2.5 NS - NS 0.002 0.005 0.01 Pb Cu Zn CN- Mo Hg As Se Ag mg/L mg/L mg/L mg/L mg/L mglL mg/L mg/L mg/L Influent 0.040 0.038 0.082 < 0.005 0.018 < 0.0002 < 0.010 < 0.010 < 0.0005 Effluent 0.0021 0.013 0.032 < 0.005 0.012 0.00000214 < 0.002 < 0.001 < 0.0005 %removal 95% 66% 0% ** 69% ** 33% ** 96% ** 45% ** 50% ** 50.0% 0.0002 mg/L PQL 0.01 0.002 0.01 0.005 0.1 and 1 ng/L 0.01 0.01 0.001 *using 1/2 the detectable levels and Default Data for BDL samples as described in CH.5 Sect.E of the Comprehensive Guide for North Carolina Pretreatment Programs **Literature Value ***Please note:the lowest TSS detection level for the certified parameter is 2.5 mg/L per NCDENR Laboratory Division NT=Not Tested NS=No PQL set for LTMP plan LIMP July 2023 City of Randleman Summary of Long Term Monitoring for Oct-23 BOD5 NH3-N Total Nitrogen TSS COD Phosphorus Cd Cr _ Ni mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Influent 218 37 53.1 212 568 6.33 < 0.002 < 0.005 < 0.01 Aeration Basin NT < 10 NT NT NT NT 0.0019 0.03 0.0218 Effluent 3.0 < 0.1 10.4 < 2.5 < 15 4 < 0.00015 < 0.002 0.0028 removal 99% * 100% 80% * 99% * 99% 37% ** 67% ** 47% ** 42% PQL 2 0.1 NS 2.5 NS NS 0.002 0.005 0.01 Pb Cu Zn CN- Mo Hg As Se Ag mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Influent 0.201 0.150 0.138 < 0.005 0.012 < 0.0002 < 0.01 < 0.01 < 0.0005 Aeration Basin 2.01 1.29 1.5 NT NT 0.0010 0.005 NT NT Effluent 0.0064 0.016 0.043 , < 0.005 0.012 < 0.000001 < 0.002 0.001 < 0.0005 %removal 96.8% 89% 69% ** 69% ** 33% ** 96% ** 45% ** 50% ** 50% PQL 0.01 0.002 0.01 0.005 0.1 0.0002 0.01 0.01 0.001 * using 1/2 the detectable levels and Default Data for BDL samples as described in CH.5 Sect.E of the Comprehensive Guide for North Carolina Pretreatment Programs **Literature Value ***Please note:the lowest TSS detection level for the certified parameter is 2.5 mg/L per NCDENR Laboratory Division NT=Not Tested LIMP October 2023 NS=No PQL set for LTMP plan Overall Percent Removal From Randleman WWTP Summary of Long Term Monitoring for 2023 BOD5 NH3•N Total Nitrogen TSS COD Phosphorus Cd #Quarters:4 #Quarters:4 #Quarters: 4 #Quarters:4 #Quarters:4 #Quarters: 4 #Quarters:4 actual actual and* 98% * 100% 68% and* 99% 92% 32% ** 67% Cr NI Pb Cu Zn CN- Se #Quarters:4 #Quarters: 4 #Quarters:4 #Quarters: 4 #Quarters:4 #Quarters: 4 #Quarters:4 ** 47% ** 42% 94% 69% 40% ** 69% ** 50% Mo Hg As Ag #Quarters:4 #Quarters: 4 #Quarters:4 #Quarters: 4 ** 33% ** 96% ** 45% ** 50% * using 1/2 the detectable levels and Default Data for BDL samples as described in CH.5 Sect. E of the Comprehensive Guide for North Carolina Pretreatment Programs LTMP Data Summary 2023 ** Literature Value