AET Environmental, Inc. — Hazardous Materials Safety Interpretation

Page 1U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration May 16, 2023 1200 New Jersey Avenue, SE Washington, DC 20590 Frank Virginia AET Environmental, Inc. 14 Lakeside Lane Denver, CO 80212 Reference No. 23-0019 Dear Mr. Virginia: This letter is in response to your March 6, 2023, email requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to waste streams containing trace amounts of explosive hazardous material. You state that your firm manages hazardous and non-hazardous waste for waste generators, and you are currently working with a DoD installation in Colorado named Pueblo Chemical Depot (“the depot”). You state that the depot has contamination of various constituents of concern1 throughout the facility where a specific area was identified as being in contact with explosive nitro-aromatic compounds (e.g., TNT, Dinitrotoluene, RDX, etc.). You state that these compounds have contaminated the groundwater and you state that analysis of the post treatment groundwater samples display traces of certain explosive compounds at approximately 0.053 µg/l. You ask questions regarding the applicability of the Pipeline and Hazardous Materials Safety Administration (PHMSA) explosive approval process for waste generated with trace amounts of these constituents of concern. We have paraphrased and answered your questions as follows: Q1. You ask whether any debris (e.g., personal protective equipment (PPE)) that may have been exposed to waste streams containing trace amounts of explosive compounds must have an explosives examination report submitted to PHMSA for review under the explosive approval process. A1. The answer is yes. Waste material that is exposed to and contaminated with explosive compounds is considered a “new explosive.” A new explosive is an explosive produced by a person who has not previously produced that explosive or has previously produced that explosive but has made a change in the formulation, design, or process to alter any of the properties of the explosive (see § 173.56). The term “formulation” —as used in the definition of a new explosive—applies to the entire mixture and not just the explosive components. Any changes must be examined to determine whether the properties have been altered and this may not be self-determined but must be determined in accordance 1 Any substance defined as a hazardous substance, hazardous waste, hazardous material, toxic substance, solid waste, pollutant, or contaminant by an Environmental Law (https://www.lawinsider.com/dictionary/constituent-of- concern).#

Page 2with § 173.56(b). If the explosive compounds are mixed with filters, rags, dirt, or other material (e.g., diluted with contaminated water or other solvents), it is considered a “new explosive” and must be approved in accordance with § 173.56(b). However, it is the shipper’s responsibility to determine whether a specific piece of waste material generated from the site is contaminated with explosive residue. Please note, if further process to decontaminate or neutralize contaminated PPE before declaring it as waste or if further sampling indicates there is no longer detectable explosive content, it would be possible to determine the PPE is no longer an explosive hazardous material. Q2. You believe that the contaminated water would be considered non-hazardous waste based on the trace amount of explosive compound identified in the groundwater and you ask whether the HMR has allowances for a de minimis quantity exception for explosive material. You also seek confirmation that assigning a non-regulated hazardous material description for the material is appropriate and would not warrant submission and review in accordance with the requirements found in § 173.56(b). A2. The answer is no. All compositions containing any amount of explosive material— including compositions of diluted (desensitized) explosives or explosives combined or contaminated with other materials—meet the definition of a new explosive and must be classified and approved by PHMSA. However, this process may result in a determination that the material is not an explosive and thus not regulated. Please note that in accordance with § 173.56(i), if experience or other data indicate that the hazard of a material or a device containing an explosive composition is greater or less than indicated according to the definitions and criteria specified in §§ 173.50, 173.56, and 173.58, the Associate Administrator may specify a classification or except the material or device from the requirements of the HMR. I hope this information is helpful. Please contact us if we can be of further assistance. Sincerely, Dirk Der Kinderen Chief, Standards Development Branch Standards and Rulemaking Division#

Page 3Baker 23-0019 From: Raynor, T"Mia (PHMSA) To: Hazmat Interps Subject: FW: Interpretation of New Explosives (173.56) Date: Tuesday, March 7, 2023 10:18:04 AM Attachments: image001.png SWMU 17 PPE _ Debris (002).pdf image003.png Hello, Please see below. Thanks, T’Mia Raynor Webmaster, Office of the PHMSA CIO US Department of Transportation Pipeline and Hazardous Materials Safety Administration 1200 New Jersey Ave. SE, Washington, D.C., 20590 Office: 202.366.9818 ◊ Mobile: 202.580.9447 PHMSA Home | LinkedIn | Twitter | HAZMAT | OPS From: Virginia, Frank <frankvirginia@aetenvironmental.com> Sent: Monday, March 6, 2023 5:36 PM To: PHMSA Website Manager <PHMSAWebsiteManager@dot.gov> Cc: Rosinski, Pamela A CIV USARMY USAMC (USA) <pamela.a.rosinski.civ@army.mil>; Monical, Lee B <monical.lee@cleanharbors.com> Subject: Interpretation of New Explosives (173.56) CAUTION: This email originated from outside of the Department of Transportation (DOT). Do not click on links or open attachments unless you recognize the sender and know the content is safe. To whom it may concern: My firm manages hazardous and non-hazardous waste for a variety of Generators across a wide variety of industry sectors and government agencies. In this particular instance, I am working with a DOD instillation, Pueblo Chemical Depot, in Pueblo, CO. The site is slated for closure in the coming years but was very instrumental in our success during the cold war and had broad mission. Fast forward to today (70 years later) and there is wide spread contamination of various constituents of concern (COC) throughout the facility. The Army worked with the State of Colorado (CDPHE) to identify and establish corrective action measures for various areas of concern throughout the site, which brings us to my question.#

Page 4Solid Waste Management Unit (SWMU 17) is an area that came in contact with explosive materials years ago that eventually contaminated the ground water. Nitro-aromatic compounds (TNT, Dinitro- toluene, etc), RDX, etc.) have been identified in the ground water. A Corrective Action measure, approved by the State, calls for the ground water to be extracted, treated and reinjected back to ground, and to take quarterly samples from monitoring wells. Most recent analysis of the water shows traces of certain explosive compounds at 0.053 ug/l. Excerpts from the analysis and a more detailed discussion of the history of the site and the corrective action measures are outlined in the attached file. The generator is trying to profile non-hazardous PPE and debris from this process. The debris may or may not have come in direct contact with ground water containing trace levels (0.53ug/l) of explosive compounds. The disposal firm (Clean Harbors) is asking for an EX number demonstrating that the generator has made a submission of this “material” (non-hazardous waste), as a “newly manufactured” explosive for review and concurrence by PHMSA. The generator maintains that this is not necessary, as this not a new explosive and nothing is being manufactured. This is simple a non-hazardous waste, that has been generated during implementation of corrective action measures, that may or may not have come in contact with water, that may have de minimus traces of explosive compounds. The generator believes that assigning a non-regulated DOT description is appropriate and does not believe that it requires submission and review under 173.56(b). Could you please give us your interpretation in this matter I would appreciate a prompt response. Kind Regards, Frank Virginia AET Environmental, Inc 14 Lakeside Ln Denver, CO 80212 (O) 303.333.8521 The information contained in this e-mail communication and any attached documentation is intended only for the exclusive use of the designated recipient(s). If the reader or recipient of this e- mail and any attached documentation is not the intended recipient or an employee or agent of the intended recipient who is responsible for delivering it to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this e-mail and any attached documentation is strictly prohibited. If you have received this e-mail in error, please immediately#

Page 5notify the sender by return e-mail and promptly delete the e-mail and any attached documentation. This e-mail and any attached documentation may contain information that is privileged, confidential, proprietary or otherwise protected by law. This notice serves as a confidentiality marking for the purpose of any confidentiality or nondisclosure agreement. Receipt of this e-mail and the attached documentation by anyone other than the intended recipient shall not be deemed a waiver of any rights of confidentiality.#

Page 6xxxxxxxxxxxxxxxxxxxxxxx C08213820725 PUEBLO, CO 81006 6. TECHNICAL CONTACT: 7. TITLE: 8. PHONE: Ann Mead 719-549-4484 1. NAME OF WASTE: B. WASTE INFORMATION FILTERS, PPE & DEBRIS SWMU 17 2A: USEAPA WASTE CODE: 2B. DEMIL CODE: B E F G P 2C. STATE/LOCAL/HOST-NATION WASTE CODES: 3. PROCESS GENERATING WASTE: Corrective action at a solid waste management unit under RCRA 4. PROJECTED ANNUAL VOL: 100000 5. MODE OF COLLECTION DRUM 6. IS THIS WASTE A DIOXIN LISTED WASTE AS DEFINED IN 40 CFR 261.317 ] YES XINO 7. IS THIS WASTE RESTRICTED FROM LAND DISPOSAL? (40 CFR 268) YES NO HAS AN EXEMPTION BEEN GRANTED? YES NO DOES THE WASTE MEET APPLICABLE TREATMENT STANDARDS ALREADY? YES (If yes, Enter Reference Standards in Part II, Block 6) NO PART II 1. MATERIAL CHARACTERIZATION (Optional - Unless otherwise indicated) COLOR: Varied DENSITY: BTU/LB: TOTAL SOLIDS: 99 % ASH CONTENT: 0% LAYERING X MULTILAYERED BILAYERED SINGLE PHASE (Mandatory) PHYSICAL STATE SOLID LIQUID SEMI-SOLID GAS OTHER 2. RCRA CHARACTERISTICS (Check all that apply) • IGNITABLE (D001) • CORROSIVE (D002) REACTIVE(D003) WATER REACTIVE CYANIDE REACTIVE SULFIDE REACTIVE PH: HIGH TOC (≥ 10%) LOW TOC (<10%) TREATMENT GROUP: WASTEWATER NON-WASTEWATER TOXICITY CHARACTERISTIC (D004-D043) CORRODES STEEL DLA FORM 2511, NOV (Formerty DRMS Form 1930) Page 1 of 3 PDF (DLA)#

Page 7RANGE TOTAL MUST EQUAL AT LEAST 100% 3. MATERIAL COMPOSITION/UNDERLYING HAZARDOUS CONSTITUENTS COMPONENT CAS# Be as descriptive as possible. Chemical names or generic descriptions, e.g. 'sludge" CONCENTRATION paint solids, water", etc, ara acceptable RANGE RANGE TOTAL MUST EQUAL AT LEAST 100% DLA FORM 2511, NOV (Formerly DRMS Form 1930) Page 2 of 3 PDF (OLA)#

Page 8METHOD OF SHIPMENT • BULK DRUM OTHER DOT REPORTABLE QTY (RO) (REF: 49 CFR 72.101, Appendix A) EMERGENCY RESPONSE GUIDE EDITION: EMERGENCY RESPONSE NO: 5. SPECIAL HANDLING INFORMATION 6. GENERATOR CERTIFICATION: CHEMICAL ANALYSIS SER KNOWLEDGE (Attach Supporting Documents (Attach Test Results) Explain how and why these documents comply wi RCRA requirements) CERTIFICATION: 1, PAMELA ROSINSKI HEREBY CERTIFY THAT ALL INFORMATION SUBMITTED IN THIS AND ALL ATTACHED DOCUMENTS IS TO THE BEST OF MY KNOWLEDGE AN ACCURATE REPRESENTATION OF THE WASTE TURNED IN TO THE DLA. ALL KNOWN OR SUSPECTED HAZARDS HAVE BEEN DISCLOSED. Pamela Rounck 03/03/2022 Signature of Generator's Representative Date DLA FORM 2511, NOV (Formerly DRMS Form 1930) Page 3 of 3 PDF (DLA)#

Page 10Subject: Disposition of Investigation-Derived Waste Pueblo Chemical Depot, Pueblo Colorado Contract #: W9128F-18-D-0029 Generating Process During the period of 14 July to 30 November 2021, TLI Solutions - Bay West Joint Venture (TLI-Bay West JV) performed ground water sample collection activities at Solid Waste Management Unit (SWMU) 17. Environmental sampling equipment (inoperable submersible pump, bailer filters, and filter cartridges) and related waste (decontamination paper towels, personal protective equipment [PPE], and sampling debris) was generated during groundwater sampling and operation and maintenance (O&M) event. The waste was generated from Corrective Action activities conducted in accordance with the Pueblo Chemical Depot (PCD) Resource Conservation and Recovery Act (RCRA) Hazardous Waste Permit No. CO-13-12-23-01 (the Permit). As detailed herein, the wastes have been characterized pursuant to 6 Code of Colorado Regulations (CCR) 1007-3, §262.11. Site Description and RCRA Status The Trinitrotoluene (TNT) Washout Facility and Discharge System is located in the southwestern portion of PCD within the Western Wildlife Management Reuse Area. From the late 1940s to 1974, TNT from various munitions was reclaimed at the TNT Washout Facility. A pump and treat system for contaminated groundwater at SWU 17, called the Southwest Terrace (SWT) Groundwater Extraction, Treatment, and Injection (GETI) System, was installed and operational since June 2001 to stop offsite migration of contaminated groundwater from the SWU 17 Southwest Terrace (SWT) area. The SWT area covers approximately five square miles extending from northwest of the TNT Washout Facility to the western and southern boundaries of PCD. This area includes a portion of Chico Creek. The GETI system has three distinct and separate areas of groundwater extraction, treatment, and reinjection: Ciruli Spring, South Point, and Southwest. Expected Waste Contaminants SWU 17 (TNT Washout Facility and Discharge System) is the source of explosives-related constituents in soil and groundwater in the SWT area. Explosives such as hexahydro-1,3,5-trinitro- 1,3,5-triazine (RDX), 2,4-dinitrotoluene (2,4-DNT), 2,6-dinitrotoluene (2,6-DNT), and 1,3-dinitrobenzene (1,3-DNB) are detected above the Colorado Groundwater Quality Standards (CGWQSs) in the groundwater within the facility boundary. The Permit identifies octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), RDX, 1,3,5-trinitrobenzene, 1,3-DNB, tetryl, nitrobenzene, 2,4,6-TNT, 4-amino-2,6-dinitrotoluene, 2-amino- 4,6-dinitrotoluene, 2,4-DNT, 2,6-DNT, 2-nitrotoluene, 3-nitrotoluene, 4-nitrotoluene, pentaerythritol tetranitrate (PETN), and nitrate as contaminants of concern (COCs) in groundwater. The selected Page 1#

Page 11Accumulation Area (SAA) drum addressed in this letter. Purged Groundwater Characterization Table 1 presents the waste drum ID along with the associated laboratory analytical file IDs of the groundwater sampled during the period solid waste was accumulated in drum 21PCD0232. Groundwater samples associated with solid waste contained in this drum were analyzed for explosives using USEPA Method SW8321B and nitrate by method USEPA SW9056A. There were no listed waste compounds detected. However, toxicity characteristic (TC) waste constituent 2,4-DNT, as well as a number of other site-related hazardous and non-hazardous constituents, were detected in the purged groundwater collected during the period SAA drum 21PC0232 accumulated PPE and O&M solid waste. None of the detected TC waste constituents exceeded the USEPA Toxicity Characteristic Regulatory Limits (TCRLs) in the purged groundwater associated with the solid waste in the drum addressed in this letter. Accordingly, "D" codes are not applicable to any of this waste. TC waste constituent 2,4-DNT, as well as RDX, were detected above the CGWQS. However these are not listed waste constituents, and therefore this waste is considered non-hazardous. Other site-related hazardous constituents detected in the purged groundwater associated with the solid waste in the drum addressed in this letter were below the associated CGWQSs, and therefore have no bearing on the waste classification. Table 1 also shows the proposed waste codes, proposed waste code justification, and the proposed waste disposition. Table 2 provides a tabulation of the groundwater sample detections, and compares the concentrations to the TCRLs and CGWQS. PPE and Sampling Debris Characterization and Disposition The PPE and sampling debris generated during this groundwater sampling event was contained within SAA drum 21PCD0232 at the time of the sampling that was stored in the Ciruli Spring treatment building CS 6A at SWU 17 in the GETI Area. PPE and sampling debris from sampling events conducted between 14 July to 30 November 2021 has not been in contact with a listed waste as characterized above, and is therefore will be disposed as non-hazardous solid waste contents will temporarily be stored in the Building 114 covered dumpster until it is transported off-site for disposal. This drum had an original accumulation start date (ASD) of 14 July 2021, and was filled and replaced Page 2#

Page 12If you require additional information regarding this waste, please contact me at (571) 992-5225. Sincerely, Palchy Paul Chang TLI-Bay West JV Waste Coordinator I concur with the waste determination as described above. Signature Date Pamela Rosinski Pueblo Chemical Depot Enclosure CC: Jamal Albaiz, PCD, 45825 Highway 96 East, Building 49, Pueblo, CO 81006-9330 PCD Document Tracking/PCD Environmental Library, 45825 Highway 96 East, Building 49, Pueblo, CO 81006-9330 T. Allen, TLI Solutions, 45825 Highway 96 East, Building 114, Pueblo, CO 81006-9330 Page 3#

Page 13She-rela Site-rela Site-reia Want Due Unrestricted Une No come into tontact with groundwater with whatle dealter (see lab reports associated with groundwater analysb). Detections are listed below 2. 4-Dinitrotoluene 1,3.5-Trinitrobenzene 2-Amino-4,5-Dinitrotoluene 4-Amiso-2,6-Dinitrototuene 2.4,6-Trinitrotoluene Nitrate (as N) [from Documented Sold waste not tested but has Ico to a Subtitle C or O facility, as appropriate. Table 1: Investigation Dertred Waste Proposed Dispositie Annust Sempling- Boundary Compliance Wolls Puablo Chernical Depot Characteristic Other Constituents Tas Are Flat/Peratit 1144361, 1144648. 1144962 PPE, baller filters. submersible pump. Container She/Type 55 GL DF 2/27/2022 ASD 11/30/2021 southwest, Cirull Spring, and the South Point Boundary Complance Well Colorado Department of Public Heath and Environmen Interim Corebe Atten Groundate Remedition Sten Colorado Groundwater Quelty Standard Accumulation Start Date Constituent of Concern Drum - Are endored Plente Mote theme Depen sensonal protective equipment lesource Conservation and Recovery Act Treatmem, Storage, and Disposal Facity Soild Waste Management Unit Mexalondro-23,5-Trintero-1,3, 5-Telazine Octatedro- 1.3.5,7 Tetranitro- 1,2,5.7-Tetrazocine SWMU 17 SAA Drum Weste Despostion dentification Totkity Characteristk Trichloroethylene rolable organk compound 1P(00732 (PHE coWas ICAGRS#

Page 14ISLA VIVI Nitrate as N 0,80 M 0.50 0.090 mg/L 1 9056A Total/NA Client Sample ID: SPE01B Lab Sample ID: 280-144361-3 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Prep Type RDX 0.024 JM 0.095 0.020 ug/L 8321B Total/NA Nitrate as N 0.75 M 0.50 0.090 mg/L 9056A Total/NA Client Sample ID: SPE01BFD Lab Sample ID: 280-144361-4 Analyte Result Qualifier LOQ DL UnIt Dil Fac D Method Prep Type RDX 0.023 0.095 0.020 ug/l. 8321B Total/NA Nitrate as N 0.75 M 0.50 0.090 mg/L 9056A Total/NA Client Sample ID: SPE01C Lab Sample ID: 280-144361-5 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Prep Type RDX 0.024 J M 0.095 0.020 ug/L 8321B Total/NA Nitrate as N 0.56 M 0.50 0.090 mg/L 9056A Total/NA -lient Sample ID: SPE02 Lab Sample ID: 280-144361-6 Analyte Result Qualifier LOQ DL Unit Dil Fac Method Prep Type RDX 0.045 J 0.096 0.020 ug/L 8321B Total/NA Nitrate as N 0.64 M 0.50 0.090 mg/L 1 9056A Total/NA Client Sample ID: SPE02A Lab Sample ID: 280-144361-7 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Prep Type 2,4-Dinitrotoluene 0.058 J 0.076 0.018 ug/L 8321B Total/NA 2-Amino-4,6-dinitrotoluene 0.049 J M 0.095 0.020 ug/L 8321B Total/NA 4-Amino-2,6-dinitrotoluene 0.056 J M 0.095 0.018 ug/L 8321B Total/NA RDX 0.20 0.095 0.020 ug/L 1 8321B Total/NA Nitrate as N 0.82 M 0.50 0.090 mg/L 1 9056A Total/NA Client Sample ID: SPE02B Lab Sample ID: 280-144361-8 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Prep Type 2,4-Dinitrotoluene 0.029 J 0.076 0.018 ug/L 8321B Total/NA 2-Amino-4,6-dinitrotoluene 0.026 JM 0.095 0.020 ug/L 8321B Total/NA 4-Amino-2,6-dinitrotoluene 0.027 J M 0.095 0.018 ug/L ---- 8321B Total/NA RDX 0.15 0.095 0.020 ug/L 8321B Total/NA Nitrate as N 0.79 M 0.50 0.090 mg/L 9056A Total/NA Client Sample ID: SPE03 Lab Sample ID: 280-144361-9 Analyte Result Qualifier LOQ DL Unis DIl Fac D Method Prep Type 2,4-Dinitrotoluene 0.024 JM 0.076 0.018 ug/L 8321B Total/NA This Detection Summary does not include radiochemical test results. Eurofins TestAmerica, Denver Page 6 of 558#

Page 15Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Prep Type 2,4,6-Trinitrotoluene 0.039 J M 0.096 0.021 ug/L 8321B Total/NA 2-Amino-4,6-dinitrotoluene 0.021 J M 0.096 0.020 ug/L 8321B Total/NA 4-Amino-2,6-dinitrotoluene 0.022 J M 0.096 0.018 ug/L 8321B Total/NA HMX 0.018 J M 0.096 0.018 ug/L 8321B Total/NA RDX 0.31 0.096 0.020 ug/L 8321B Total/NA Nitrate as N 0.82 M 0.50 0.090 mg/L 9056A Total/NA Client Sample ID: SPE05 Lab Sample ID: 280-144361-11 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Prep Type RDX 0.022 JM 0.096 0.020 ug/L 8321B Total/NA Nitrate as N 0.84 M 0.50 0.090 mg/L 9056A Total/NA Client Sample ID: SPE06 Lab Sample ID: 280-144361-12 Analyte Result Qualifier LOQ DL Unit DIl Fac D Method Prep Type RDX 0.12 0.096 0.020 ug/L 8321B Total/NA Nitrate as N 0.75 M 0.50 0.090 mg/L 9056A Total/NA Client Sample ID: SPE06FD Lab Sample ID: 280-144361-13 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Prep Type RDX 0.069 J 0.095 0.020 ug/L 8321B Total/NA Nitrate as N 0.75 M 0.50 0.090 mg/L 9056A Total/NA Client Sample ID: SPE07 Lab Sample ID: 280-144361-14 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Prep Type 2.4-Dinitrotoluene 0.049 J M 0.076 0.018 ug/L. 8321B Tola/NA 2-Amino-4,6-dinitrotoluene 0.041 J M 0.096 0.020 ug/L 8321B Total/NA 4-Amino-2,6-dinitrotoluene 0.045 M 0.096 0.018 ug/L 8321B Total/NA HMX 0.019 J 0.096 0.018 ug/L 8321B Total/NA RDX 0.64 0.096 0.020 ug/L 8321B Total/NA Nitrate as N 1.2 M 0.50 0.090 mg/L 1 9056A Total/NA Client Sample ID: SPE08 Lab Sample ID: 280-144361-15 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Prep Type Nitrate as N 1.3 M 0.50 0.090 mg/L 9056A Total/NA This Detection Summary does not include radiochemical test results. Eurofins TestAmerica, Denver Page 7 of 558#

Page 16Client Sample ID: CSE11 Lab Sample ID: 280-144648-2 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Prep Type 1,3,5- Trinitrobenzene 0.92 0.096 0.016 ug/L 8321B Total/NA 2,4-Dinitrotoluene 0.080 M 0.077 0.018 ug/L 8321B Total/NA 2-Amino-4,6-dinitrotoluene 0.023 J M 0.096 0.020 ug/L 8321B Total/NA 4-Amino-2,6-dinitrotoluene 0.048 J M 0.096 0.018 ug/L 8321B Tota/NA RDX 0.057 J 0.096 0.020 ug/L 8321B Total/NA Nitrate as N 0,44 J 0.50 0.090 mg/L 9056A Total/NA Client Sample ID: CSE11FD Lab Sample ID: 280-144648-3 Analyte Result Qualifier LOQ OL Unit Dil Fac D Method Prep Type 2,4-Dinitrotoluene 0.085 M 0.077 0.018 ug/L 8321B Total/NA 2-Amino-4,6-dinitrotoluene 0.037 JM 0.096 0.020 ug/L 8321B Total/NA 4-Amino-2,6-dinitrotoluene 0.064 J M 0.096 0.018 ug/L 8321B Total/NA RDX 0.059 J 0.096 0.020 ug/L 1 8321B Total/NA 1,3,5-Trinitrobenzene - DL 1.3 D 0.19 0.033 ug/L 2 8321B Total/NA Nitrate as N 0.44 JM 0.50 0.090 mg/L 1 9056A Total/NA Client Sample ID: CSE12 Lab Sample ID: 280-144648-4 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method 1 Prep Type 1,3,5-Trinitrobenzene 0.066 J 0.096 0.016 ug/L 8321B Total/NA RDX 0.034 JM 0.096 0.020 ug/L 1 8321B Total/NA Nitrate as N 0.65 M 0.50 0.090 mg/L 1 9056A Total/NA Client Sample ID: CSE13 Lab Sample ID: 280-144648-5 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method 8321B Total/NA Prep Type 1,3,5-Trinitrobenzene 0.13 0.096 0.016 ug/L RDX 0.065 J 0.096 0.020 ug/L 8321B Total/NA Nitrate as N 0.61 M 0.50 0.090 mg/L 1 9056A Total/NA Client Sample ID: CSE14 Lab Sample ID: 280-144648-6 Analyte Result Qualifier LoQ DL Unit Prep Type 1,3,5-Trinitrobenzene 0.13 0.095 0.016 ug/L 8321B Total/NA RDX 0.038 J 0.095 0.020 ug/L 8321B Total/NA Nitrate as N 0,48 J M 0.50 0.090 mg/L 9056A Total/NA Client Sample ID: CSE15 Lab Sample ID: 280-144648-7 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method 8321B Prep Type 1,3,5- Trinitrobenzene 0.58 0.095 0.016 ug/L Total/NA 2.4-Dinitrotoluene 0.053 J 0.076 0.018 ug/L -- 8321B Total/NA 4-Amino-2,6-dinitrotoluene 0.023 JM 0.095 0.018 ug/L 8321B Total/NA This Detection Summary does not include radiochemical test results. Eurofins TestAmerica, Denver Page 7 of 786#

Page 172,4-Dinitrotoluene 0.072 J 0.077 0.018 ug/L 8321B Total/NA RDX 0.047 J 0.096 0.020 ug/L 8321B Tota/NA Nitrate as N 0.44 J M 0.50 0.090 mg/L 1 9056A Total/NA Client Sample ID: CSE17 Lab Sample ID: 280-144648-9 Analyte Result Qualifier LOQ DL Unit Dil Fac D | Method Prep Type 2.4-Dinitrotoluene 0.11 0.076 0.018 ug/L 8321B Total/NA 4-Amino-2,6-dinitrotoluene 0.028 JM 0.095 0.018 ug/L 1 8321฿ Total/NA RDX 0.088 J 0.095 0.020 ug/L 8321B Total/NA 1,3,5-Trinitrobenzene - DL 2.0 D 0.19 0.032 ug/L 2 8321B Total/NA Nitrate as N 0.42 JM 0.50 0.090 mg/L 1 9056A Total/NA Client Sample ID: CSE18 Lab Sample ID: 280-144648-10 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Prep Type 2,4-Dinitrotoluene 0.11 0.078 0.019 ug/L 1 8321B Total/NA 2-Amino-4,6-dinitrotoluene 0.023 J M J1 0.098 0.021 ug/L 8321B Total/NA 4-Amino-2,6-dinitrotoluene 0.037 JM J1 0.09B 0.019 ug/L 8321B Total/NA RDX 0.13 0.098 0.021 ug/L 8321B Total/NA 1,3,5-Trinitrobenzene - DL 2.6 D 0.39 0.067 ug/L 8321B Total/NA Nitrate as N 0.48 J M 0.50 0.090 mg/L 9056A Total/NA Client Sample ID: CSE19 Lab Sample ID: 280-144648-11 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Prep Type 2,4-Dinitrotoluene 0.065 J 0.077 0.018 ug/L 8321B Total/NA 4-Amino-2,6-dinitrotoluene 0.027 J M 0.096 0.018 ug/L 8321B Total/NA RDX 0.070 J 0.096 0.020 ug/L 8321B Total/NA 1,3,5-Trinitrobenzene - DL 2.8 D 0.19 0.033 ug/L 8321B Total/NA Nitrate as N 0.50 M 0.50 0.090 mg/L 9056A Total/NA Client Sample ID: CSE20 Lab Sample ID: 280-144648-12 Analyte Result Qualifier LOa DL Unit Dil Fac D Method Prep Type 1,3,5-Trinitrobenzene 0.34 0.096 0.016 ug/L - 8321B Total/NA 2,4-Dinitrotoluene 0.037 J 0.077 0.018 ug/L 8321B Total/NA 2-Amino-4,6-dinitrotoluene 0.020 JM 0.096 0.020 ug/L 8321B Tota/NA 4-Amino-2,6-dinitrotoluene 0.028 JM 0.096 0.018 ug/L 8321B Tota/NA RDX 0.058 J 0.096 0.020 ug/L 8321B Total/NA Nitrate as N 0.70 M 0.50 0.090 mg/L 9056A Total/NA Client Sample ID: CSE22 Lab Sample ID: 280-144648-13 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Prep Type 2,4-Dinitrotoluene 0.24 0.077 8321B Total/NA 2-Amino-4,6-dinitrotoluene 0.062 J M 0.096 0.020 ug/L 1 8321B Total/NA This Detection Summary does not include radiochemical test results Eurofins TestAmerica, Denver Page 8 of 786#

Page 18ulent sample lo. cockerb Lab sample IN. c00-144040-14 Analyte Result Qualifier LOQ DL Unit DIl Fac D Method Prep Type 2,4-Dinitrotoluene 0.21 0.077 0.018 ug/L 8321B Total/NA 2-Amino-4,6-dinitrotoluene 0.053 JM 0.096 0.020 ug/L 8321B Total/NA 4-Amino-2,6-dinitrotoluene 0.071 JM 0.096 0.018 ug/L 8321B Total/NA HMX 0.031 J M 0.096 0.018 ug/L 8321B Total/NA RDX 0.33 0.096 0.020 ug/L 8321B Total/NA 1,3,5-Trinitrobenzene - DL 1.6 D 0.19 0.033 ug/L 8321B Total/NA Nitrate as N 0.49 J M 0.50 0.090 mg/L 9056A Total/NA Client Sample ID: CSE23 Lab Sample ID: 280-144648-15 Analyte Result Qualifier LOQ -DL Unit Dil Fac D Method Prep Type 1,3,5-Trinitrobenzene 0.30 0.096 0.016 ug/L 8321B Total/NA 2,4-Dinitrotoluene 00054 J 0.077 0.018 ug/L 8321B Total/NA 2-Amino-4,6-dinitrotoluene 0.022 J M 0.096 0.020 ug/L 8321B Total/NA 4-Amino-2.6-dinitrotoluene 0.029 J M 0.096 0.018 ug/L 8321B Total/NA RDX 0.074 J 0.096 0.020 ug/L 8321B Total/NA Nitrate as N 0.31 J M 0.50 0.090 mg/L 9056A Total/NA Client Sample ID: CSE24 Lab Sample ID: 280-144648-16 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Prep Type 1,3,5-Trinitrobenzene 0.40 0.096 0.016 ug/L 8321B Tota/NA 2,4-Dinitrotoluene 0.091 M 0.076 0.018 ug/L 8321B Total/NA 2-Amino-4,6-dinitrotoluene 0.039 J M 0.096 0.020 ug/L 1 8321B Total/NA 4-Amino-2,6-dinitrotoluene 0.049 J M 0.096 0.018 ug/L 8321B Total/NA HMX 0.018 J M 0.096 0.018 ug/L 1 8321B Total/NA RDX 0.16 0.096 0.020 ug/L 1 8321B Total/NA Nitrate as N 0.40 J M 0.50 0.090 mg/L 9056A Total/NA Client Sample ID: CSE30 Lab Sample ID: 280-144648-17 Analyte Result Qualifier LOQ DL Unit DIl Fac D Method Prep Type 1,3.5-Trinitrobenzene 1.0 0.095 0.016 ug/L 8321B Total/NA 2,4-Dinitrotoluene 0.076 0.076 0.018 ug/L 1 8321B Tota/NA 2-Amino-4.6-dinitrotoluene 0.026 JM 0.095 0.020 ug/L 1 8321B Total/NA 4-Amino-2,6-dinitrotoluene 0.059 J M 0.095 0.018 ug/L 1 8321B Total/NA RDX 0.065 J 0.095 0.020 ug/L 1 8321B Total/NA Nitrate as N 0.46 JM 0.50 0.090 mg/L 9056A Total/NA Client Sample ID: CSE31 Lab Sample ID: 280-144648-18 Analyte Result Qualifier LOQ DL Unit DIl Fac D Method Prep Type 1.3,5- Trinitrobenzene 1.2 0.095 0.016 ug/L 8321B Total/NA 2,4-Dinitrotoluene 0,088 0.076 0,018 ug/L 1 8321B Total/NA This Detection Summary does not include radiochemical test results. Eurofins TestAmerica, Denver Page 9 of 786#

Page 19Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Prep Type 1,3,5-Trinitrobenzene 0.054 J 0.095 0.016 ug/L 8321B Total/NA Nitrate as N 0.43 J M 0.50 0.090 mg/L 9056A Total/NA Client Sample ID: CSE45 Lab Sample ID: 280-144648-20 Analyte Result Qualifier LOQ DL Unit DIl Fac D Method Prep Type 1,3,5-Trinitrobenzene 0.57 0.096 0.016 ug/L 8321B Total/NA 2,4-Dinitrotoluene 0.023 J 0.077 0.018 ug/L 1 8321B Total/NA RDX 0.027 J 0.096 0.020 ug/L 8321B Total/NA Nitrate as N 0.49 J M 0.50 0.090 mg/L 1 9056A Tota/NA Client Sample ID: CSE46 Lab Sample ID: 280-144648-21 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Prep Type 1,3,5-Trinitrobenzene 0.048 J 0.094 0.016 ug/L 8321B Total/NA RDX 0.025 J 0.094 0.020 ug/L 8321B Total/NA Nitrate as N 0.47 J 0,50 0.090 mg/L 1 9056A Total/NA This Detection Summary does not include radiochemical test results. Eurofins TestAmerica, Denver Page 10 of 786#

Page 20Client Sample ID: SWE02 Lab Sample ID: 280-144962-4 No Detections. Client Sample ID: SWE03 Lab Sample ID: 280-144962-5 No Detections. Client Sample ID: SWE04 Lab Sample ID: 280-144962-6 Analyte Result Qualifier LOQ DL UnIt Dil Fac D Method Prep Type 2,4-Dinitrotoluene 0.030 J 0.076 0.018 ug/L 8321B Total/NA 2-Amino-4,6-dinitrotoluene 0.020 JM 0.095 0.020 ug/L 8321B Total/NA 4-Amino-2,6-dinitrotoluene 0.038 JM 0.095 0.018 ug/L 8321B Total/NA RDX 0.11 0,095 0.020 ug/L 1 8321B Total/NA Client Sample ID: SWE05 Lab Sample ID: 280-144962-7 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Prep Type 2,4-Dinitrotoluene 0.027 J 0.077 0.018 ug/L 8321B Total/NA 2-Amino-4,6-dinitrotoluene 0.020 0.096 0.020 ug/L 8321B Total/NA 4-Amino-2,6-dinitrotoluene 0.054 J 0.096 0.018 ug/L 8321B Total/NA RDX 0.18 0.096 0,020 ug/L 8321B Total/NA Client Sample ID: SWE06 Lab Sample ID: 280-144962-8 Analyte Result Qualifier Loa DL Unit DIl Fac D Method Prep Type 2,4-Dinitrotoluene 0.17 0.077 0.018 ug/L 8321B Total/NA 2-Amino-4,6-dinitrotoluene 0.060 J 0.096 0.020 ug/L 8321B Total/NA 4-Amino-2,6-dinitrotoluene 0.11 0.096 0.018 ug/L 1 8321B Total/NA RDX 0.65 0.096 0.020 ug/L 1 8321B Total/NA Client Sample ID: SWE30 Lab Sample ID: 280-144962-9 Analyte Result Qualifier LoQ DL Unit Dil Fac D Method Prep Type 2, 4-Dinitrotoluene 0.13 0.077 0.018wg/L 1 8321B Total/NA 2-Amino-4, 6-dinitrotoluene 0.032 J 0.096 0.020 ug/L 8321B Total/NA 4-Amino-2, 6-dinitrotoluene 0.11 0.096 0.018 ug/L 8321B Total/NA RDX 0.89 0.096 0.020 ug/L 8321B Total/NA Nitrate as N 5.8 0.50 0.090 mg/L 1 9056A Total/NA Client Sample ID: SWE31 Lab Sample ID: 280-144962-10 Analyte Result Qualifier LOQ DL Unit Dil Fac D Method Nitrate as N 4.9 0.50 Prep Type 0.090 mg/L 9056A Total/NA This Detection Summary does not include radiochemical test results. Eurofins TestAmerica, Denver Page 6 of 537#

Page 214-Amino-2,6-dinitrotoluene 0.070 J 0.096 0.018 ug/L 8321B Total/NA RDX 1.2 0.096 0.020 ug/L 1 8321B Total/NA Nitrate as N 3.3 0.50 0.090 mg/L 1 9056A Tota/NA Client Sample ID: SWE33 Lab Sample ID: 280-144962-13 Analyte Result Qualifler LOQ DL Unit Dil Fac D Method Prep Type 2-Amino-4,6-dinitrotoluene 0.46 0.095 0.020 ug/L 8321B Total/NA 4-Amino-2,6-dinitrotoluene - 0.73 0.095 0.018 ug/L 8321B Total/NA HMX 0.080 J 0.095 0.018 ug/L 8321B Total/NA 2,4-Dinitrotoluene - DL 1.5 D 0.38 0.091 ug/L 8321B Total/NA RDX - DL 2.5 J1D 0.48 0.10 ug/L 8321B Total/NA Nitrate as N 5.7 0.50 0.090 mg/L 1 9056A Total/NA Client Sample ID: SWE34 Lab Sample ID: 280-144962-14 Analyte Result Qualifier LOO DL Unit Dil Fac D Method Prep Type 2,4-Dinitrotoluene 0.66 0.077 0.018 ug/L 1 8321B Total/NA 2-Amino-4,6-dinitrotoluene 0.20 0.096 0.020 ug/L 1 8321B Tota/NA 4-Amino-2,6-dinitrotoluene 0.41 0.096 0.018 ug/L 1 8321B Total/NA RDX - DL 3.3 D 1.9 0.40 ug/L 20 8321B Total/NA Nitrate as N 4.0 0.50 0.090 mg/L 1 9056A Total/NA This Detection Summary does not include radiochemical test results. Eurofins TestAmerica, Denver Page 7 of 537#

Page 22Organization: Building: Hazardous Waste Manger and Alternate Manager SWMU17-(GETI) TNT WO Ann Mead DATE AMOUNT TYPE OF WASTE NAME (Print Clearly) 7-14-21 12 Co. FT. PAPER TUWEIS TONY AlIEN 7-20-21 • 25 cufT TONY AllE 1/2621 1.25 cuff sloves, fiters, filter wrappers Veil Nelsor / Bag PIE 7-29•21 As Bell tals sut sampling Bill/LEMP 8-23.21 11" land Dead submersible Neil Nelson 10-20-21 1.29 cuft y'aues. Filtrs, Tony AllEN 11-17•21 " " each submersible pumps, gloves Neil Nelson TURN-IN VERIFICATION GENERATOR CERTIFICATION 1. , hereby certify that all the information submitted in this document is to the best of my knowledge an accurate representation of the waste turned in or burned. All known or suspected hazards have been disclosed. If a waste profile exists on this waste, I certify that no changes have occurred in the process that generated this waste. SIGNATURE Date: DISPOSAL METHOD: (Circle One: BLEND FOR ENERGY RECOVERY, RECYCLED, SENT TO HWC) This section to be filled in by Hazardous Waste Center Personnel Profile Number: Document Number: Tum-in date#