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Home My WebLink AboutNC0090000_Public Hearing Presentation_20230316 March 16, 2023 Department ofEnvironmental Quality Colonial Pipeline Company — NPDES Permit NCO090000 NO INA •- �rg r r r a nvirooWp entaI Quality Ow ��r A. Colonial Pipeline Company Huntersville Spill Site — History ' ■ • August 14, 2020 — Notification was made to local & state response agencies and Colonial Pipeline Company o Local first responders and Colonial Pipeline employees responded to a leak in one of its underground lines. o The pipeline was immediately shut down to conduct repair work. • August 19, 2020 — Repair to the pipeline had been completed. • Cleanup efforts and remediation have been ongoing, with oversight by the NC DEQ Division of Waste Management. 'j ;NORTH CAROLINA Department of Environmental Quality 2 a s1- Enforcement .: • November 2, 2021 , Injunctive Relief — NC DEQ filed a Complaint and Motion for Injunctive Relief in Mecklenburg County Superior Court. o Forces Colonial Pipeline to meet its obligations as the responsible party. o Provide DEQ with essential information required for appropriate remediation at the site. • June 30, 2022, Consent Order — NC DEQ filed a Consent Order in Mecklenburg County Superior Court (approved July 7, 2022) o Holds Colonial Pipeline accountable as the responsible party. o Requires Colonial to take specific remedial actions. o Civil Penalty $4.75 million e:jeo D� -7A k4l) NORTH CAROLINA .A.EQm Department of Environmental Quality 3 Regulatory Authority • U.S. DOT's Pipeline and Hazardous Materials Safety Administration (PHMSA) — regulates pipeline safety. • NC Department of Environmental Quality • Division of Waste Management — cleanup of gasoline spills • Division of Air Quality — Air Monitoring • Division of Water Resources — Clean Water Act (NPDES) and Surface Water Monitoring • Mecklenburg County's, Departments of: • Public Health — NPDES Inspections • Land Use and Environmental Services Agency (LUESA) — Air Quality Permitting ,,.E k4l) NORTH CAROLINA Department of Environmental Quality 4 NPDES Permitting Process ■ • Complete Application • Additional Information • Draft Permit • Public Notice — 30-day comment period • Public Hearing • Final Permit Decision — Must be made within 90 days of public hearing • If approved, permit will have up to a 5-year duration D:4.E NORTH CAROLINA Department of Environmental Quality (I ti v ►I Engineering Alternatives Analysis (EAA) • Connection to POTW — Prohibited by sewer use ordinance. • Land Application (Spray or Dip Irrigation) — Technically infeasible. Dependent on land availability. • Infiltration Galleries — Technically infeasible. Dependent on land availability. • Closed-Loop or In-Situ Groundwater Remediation Wells — Technically infeasible. The long-term goal is to create a hydraulic barrier to prevent the spill from moving further away from the site. • Pump & Haul with approximately 115 trucks 24 hours per day — approximately $596 million • Surface water discharge (NPDES permit) — approximately $23 million. 'j ;NORTH CAROLINA Department of Environmental Quality 6 Permit Conditions (Individual Permits� • Components List and Receiving Stream Characteristics • Effluent Limitations and Monitoring Requirements • Special Conditions • Standard Conditions NORTH CAROLINA Department of Environmental Quality Components List ■ A 0.576 MGD (including a 0.288 MGD temporary system) groundwater remediation system consisting of, but not limited to: • a recovery well system • an oil/water separator with skimmed oil storage tank • a bag filter bank • an air stripper unit • a thermal oxidizer unit or granular activated carbon units (GAC) [Mecklenburg Co. Air Quality Permit —Vapor Treatment] • liquid phase granular activated carbon (GAC) vessels • an outfall structure e:!5:fDE NORTH CAROLINA Am Q Department of Environmental Quality -y � �'f! 'I „ �•r -ram :` '�F�i'�,.�.a,, � �. ki - . Mw-35 MW 96 Mw.mo, J�[' MtuoS nrvsas "-72 _ r f MW-OOPS/ RWB -2TA ATN-O6 flW- _ RW.n ' RW.ffi PW.]1 M MW-1060 RW-33 MM-22P MJJ.63 RW-]d - MUYS80fl RW-60 MW-28R RW.9 RW-88 MJJ 20 MNJ 88 � "l .. ]• t MW-01 RYy-� RWbd RW- RWS2 s RW-110 RWBT RW- flW-2] PW-86 RW78 RW31 RW-5 MW39 RW.9'! MW-BT _ RWB! RWS I MW.@ MW 30 MW3iR RWSO '� R14S RW6T W39 RWSS WASR MW 69 MW]2R MW-04 PW 104 RW RW-6d RW. MNJS90 Mw09R flW-91 RW30 RW- RW/ RWU] RIYdS .��., WJ 4D MWtl MW9 RW-101 RW-1@ MJJ.1m0 MW230 RW 103 RW-12 MW-12 PW.100 RW.106 RW-105 PW.108 RW-10] M!J _ MW% RW19 MW-m0 RW-15 MW.9000 Rw . RW-t0 RW-39 MW-52 RW-25 ' �RW.1] RW3/ RW-40 MW-104D - 1 w-90D MW-2I M 48 RW.47 RW-20 MwS10Jf.' • • • Wells Blue PW- RW-1d MN-t0 MW W30 RW]9 RW.18 R'A''TT MW�MW-A1 - PW-82 RW-21 RWd3 • I Control • • RW-1 FPV-91D0 MW-15 RW-111 ��0 MW.•5 MJJ'61 S Recovery MW-® • e Wells Orange RW.10 RW-61 RW4/ PW-48 MW-610 MWtl RW 80 RW3] - Air • I • • ". PW-. RW-36 RW 0 RW 03, RW- flW 11 -- RW38 Soil Vapor Extraction - Green R-81 RW-02 1`• RD w RWS6 MW 11 1MW-]5 • • HUpI'fERSVILLE-CONCORD _ . �f RW-04 RW2A wells in MW.61. • I _ MW6: MW a0 �tT Rw- RW.22 PW-fit RW-116 MW-rl] M 28 RW11/ R RW50 RW-119 RW53 PW-fi2 I MW 16 -1E0 RW-113 M'N 6] RW 1 r� MWtl MW-42 Fiv. .� AS.id PW-49 As15 I L' RW.118 A.12 6 Ryy. t .T. MW-'A w'0 A813 PV 10 PJ.12 ✓tom RW-5d MW-fi1 RW'6 M'"t_Z M 21 MW 13 1503 SMG01 RW-fi6 �-11 Md'101 I�i f• MW S 6M002 1. ' Mf1.4] 4 46 �' MW 65 u � A5.0o M 49 r 'ir-T30 �MW.31 ,-PV 02 t1 s AS09 } 'w 05 �. Pv-O6 - M!F as s pp 18•{, M 13 1 K M1 45.01.17 MW-]6 LLJ P p., PKO a '* E P`i p4 M1MTd Y rC _ r+. MPO.10 (1 MMr. o.�• MM.86 - m -� � M1Mrr.R1❑ MW.81 M MW62 K r Foe / �p�PY'1�`Y.TC 9.c rt r O ELLERY CHANNING DR- p 0{ y w 73 = U _ W GtiNY L'RDVk. r b FVLLB ROOK DR -- - z o MORNMGM17ST' m K yn rz z a J O - z _ > " cv FALL5 ALY J. VW -rFRSV�ELONCORD RD .. PROPOSED TEMPOPAPY GVVTP LOCATION oaR � - O - 'rch�yF COLONIAL OWNED PROPERTIES ,w�ckr.n;veuH P 1R(.11.019W10_' LS ALLEY � gIERCE FAI HUNTERSNUE-covcoRo rzoAo ,5 — �b� .— .- -- HUNTERSVILLE-CONCORD ROAD ROAD ( HUNTERSVILL&CONCORD I a E: _...._ TREATMENT SITE w 1 �g.•�yty 1 1 � ' ram I 1 1 1 1 I 1 1 1 � I � P T I y { EXHIBIT-GENERAL SITE LAYOUT s COLONIAL PIPELINE COMPANY HUNTERSVILLE-CONCORD ROAD HUNTERSVILLE,NORTH CAROLINA CONCORD ROAD - HUNTERSV/LLE- - Gy►, _• (SR,y2448) 497) L �� 70' RI�� (M4 A 47 PG 489- PHALT UNTERSVILLE-CONCORD ROAD �� o H RS - X A° .. r c �GUY mono, -4w wwwwwww No �J ' Rf V,v Q, x� TRAILER �� -GRAVEL- Ent TRNLER NNO T'y Q Approximately � LL r�a�u.rne��rsn J • 111 sq ftA a ° TREATMENT i SITE ___ — ao IAC �'• -- — \ _ IA- T ' ED COD I x L � t .. � �,�,t, �, `�� , . , , ,,a '.;• F 13 �- % '.,, �.1' ��►'��• dip _ r �� /'. � 1; - e'F . _ ,. r. rv;:$\SjC�i'r• �+ .9r tl! �'�.ii ��•'3��(I � �3�1�� 'S �i f� s r/ •q' '.ICE 1�� r• 1,"'r JIM !fie q _� �'_ 3111� E �� • E c: �� ire � ffI•I > + .x �� / yr^ � " � ,Y✓�%- � �''. � � _ � �- �� _ Groundwater Remediation • What Is Pump and Treat? Groundwater is Holding pumped from wells or trenches to an Tank aboveground treatment system that removes Clean Water the contaminants. Pump and treat systems also �M: e mehelp keeps the contaminant plume from spreading by pumping contaminated water toward the wells. Prevents contaminants from Groundwater reaching drinking water wells, wetlands, Extraction Well streams and other natural resources. Reference: Office of Land and Emergency Management (5203P) EPA-542-F-21-021 12021 1 www.clu-in.org —► u e � towar. - Example of a pump and treat system with two extraction wells. DA.E Q-z NORTH CAROLINA Department of Environmental Quality 16 Groundwater Remediation Components - Standard gravity oil/water separator. Separated Oil Wastewater Treated Water Reference: EPA, SPCC GUIDANCE FOR REGIONAL INSPECTORS 5-1 December 16, 2013, https://www.epa.gov/sites/default/files/2014- 04/docu ments/5_owsepa rators_2014.pdf NORTH CAROLINA ,,.E %"A k4l) Department of Environmental Quality 17 Groundwater Remediation Components - Rising Air and L Vapors to Treatment What Is Air Stripping? Contaminated Water Enters Air Stripper Air stripping is the process of moving air through contaminated i Paackinter lg Material waterOver water in an aboveground treatment system to remove chemicals called Packing If "volatile organic Material Water Trickles Throug compounds" or TOCs." '� Materall the Packing xx Reference: Office of Land and Emergency Management (5203P) I EPA-542-F-21-001 12021 1 www.clu-in.org xxxx Air Blown In Cleaned e:jeo DA.E Water Out NORTH CAROLINA Department of Environmental Quality Packed-column air stripper. 18 Groundwater Remediation Components - a Pi / -CanUff*=ls and V*= What Is Granular Activated - Carbon Treatment? Aclivate4 Cad= .• Poles Activated carbon granules. Contaminants and vapors sorbed to GAC_ Reference: Office of Land and Emergency Management (5203P) EPA-542-F-21-010 1 2021 1 www.clu-in.org NORTH CAROLINA ,,.E %"A k4l) Department of Environmental Quality L Effluent Limits & Monitoring Requirements Conventional Pollutants EFFLUENT LIMITS CHARACTERISTICS Monthly Daily Average Maximum Flow 0.576 MGD pH 6.0 :5pH :59.0 standard units Total Suspended Solids 30.0 mg/L 45.0 mg/L (TSS) Oil & Grease 15.0 mg/L 20.0 mg/L Dm.E NORTH CAROLINA Department ofEnvironmental Quality Department of Environmental Quality k4 /) Effluent Limits & Monitoring Requirements Petroleum Hydrocarbons including BTEX EFFLUENT LIMITS CHARACTERISTICS Monthly Daily Average Maximum Benzene 274 pg/L 274 pg/L Naphthalene 15.4 pg/L 15.4 pg/L Ethyl Benzene 124 pg/L 124 pg/L Toluene 14.1 pg/L 14.1 pg/L Xylenes, Total 858 pg/L 858 pg/L n-Butylbenzene 4.99 pg/L 4.99 pg/L n-Propylbenzene 102 pg/L 102 pg/L 1 ,2,4-Tri methyl benzene 499 pg/L 499 pg/L 1 ,3,5-Trimethylbenzene 275 pg/L 275 pg/L Total Recoverable 488 pg/L 488 pg/L Phenolics e:do D-�E NORTH CAROLINA Department ofEnvironmental Quality Department of Environmental Quality L Effluent Limits & Monitoring Requirements Fuel Additives EFFLUENT LIMITS CHARACTERISTICS Monthly Daily Average Maximum Total Lead 5.26 pg/L 125 pg/L Hardness — Total as Monitor Monitor [CaCO3 or (Ca + Mg)] & Report & Report 1 ,2-Dichloroethane (1 ,2 DCA) Monitor Monitor & Report & Report Methyl Tert-Butyl Ether (MTBE) Monitor Monitor & Report & Report e:do D,.E NORTH CAROLINA Department ofEnvironmental Quality Department of Environmental Quality k4 /) Effluent Limits & Monitoring Requirements Solvents - Toxicants EFFLUENT LIMITS CHARACTERISTICS Monthly Daily Average Maximum Bromomethane (Methyl Bromide) 0.05 pg/L 0.05 pg/L Chloroethane 104 pg/L 268 pg/L Hexachloro-1 ,3-butadiene 96.6 pg/L 96.6 pg/L (Hexachlorobutadiene) Tetrachloroethene (PERC) 17.7 pg/L 17.7 pg/L (Tetrachloroethylene) Vinyl chloride (Chloroethylene) 12.9 pg/L 12.9 pg/L Bromodichloromethane Monitor Monitor (Dichlorobromomethane) & Report & Report Chloromethane (Methyl Chloride) Monitor Monitor & Report & Report D71 E NORTH CAROLINA Department ofEnvironmental Quality Department of Environmental Quality Anticipated Permit Timeline • Public Hearing — March 16, 2023 • Public Comment Period Closes — 5:00 p. m . on March 17, 2023 • Final Permit Decision (90 days) — No later than June 14, 2023 NORTH CAROLINA Department ofEnvironmental Quality Department of Environmental Quality NCDEQ Division of Water ResourcesAm J Contact Information = •► _ ' I • Derek Denard, Environmental Program Consultant Industrial Permitting Branch • Email: derek.denard@ncdenr.gov • Phone: 919-707-3618 • John Hennessy, Environmental Supervisor II Compliance & Expedited Permitting Branch • Email: John.Hennessy@ncdenr.gov • Phone: 919-707-3615 For Public Records Requests: • Anna Gurney, Public Information Officer Division of Water Resources • Email: Anna.Gurney@ncdenr.gov • Phone: 919-707-8604 D,.E NORTH CAROLINA Department ofEnvironmental Quality Department of Environmental Quality k4 /) Pr Public Comments on the Draft Permit LQ. AL • Mailed (post-marked no later than March 17, 2023): Attn: Derek Denard, Wastewater Permitting Attn: Colonial Pipeline Permit 1617 Mail Service Center Raleigh, NC 27699-1617 • E-mail (through Friday, March 17, 2023, 5 p.m.) publiccomments(aD-ncdenr.gov. Please include "Colonial Pipeline" in the email subject line. D� k4l) NORTH CAROLINA .A.EQm Department of Environmental Quality Public Hearing Timer Change Clock Type Digital Duration: 00 03 00 00 00 : 03 • TimeUp Reminder (Optional): Choose Sound Effect Tick Choose TimeUp Sound Alarm O Enable Count Up O Combine With Bar Clock Start Pause Stop Reset D E NORTH CAROLINA Department ofEnvironmental Quality Department of Environmental Quality 14 ; Pr Public Comments on the Draft Permit LQ. AL • Mailed (post-marked no later than March 17, 2023: Attn: Derek Denard, Wastewater Permitting Attn: Colonial Pipeline Permit 1617 Mail Service Center Raleigh, NC 27699-1617 • E-mail (through Friday, March 17, 2023, 5 p.m.) publiccomments(aD-ncdenr.gov. Please include "Colonial Pipeline" in the email subject line. D� k4l) NORTH CAROLINA .A.EQm Department of Environmental Quality