Document Ra26KawXoQ1MgR4RR024KD5XE

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 6 1201 ELM STREET, SUITE 500 DALLAS, TEXAS 75270-2102 July 2 2023 TRANSMITTED VIA E-MAIL The Honorable Louie Bonaguidi Mayor, City of Gallup 110 West Aztec Avenue Gallup, NM 87301 mayor@gallupnm.gov Re: Administrative Order; Docket Number: CWA-06-2023-1773 NPDES Permit Number: NM0020672 Dear Mayor Bonaguidi: Enclosed is an Administrative Order (AO) issued to the City of Gallup for violations of the Clean Water Act (CWA) (33 U.S.C. 1251 et seq.) and the National Pollutant Discharge Elimination System (NPDES) Permit (permit) conditions. Violations were identified during a review of the permit file and discharge monitoring reports submitted for the Gallup Wastewater Treatment Plant. The violations alleged are for: 1) failure to meet permit effluent limitations; 2) failure to submit a new permit in accordance with Gallup WWTP permit conditions; and 3) discharging pollutants without a permit from November 2022 to current. The EPA requests that you immediately confirm receipt of this e-mail and the attached order by a response e-mail to mcelroy.damon@epa.gov. This AO does not assess a monetary penalty; however, it does require compliance with applicable federal regulations. The first compliance deadline is within thirty days of the effective date of the AO. The Environmental Protection Agency is committed to ensuring compliance with the requirements of the NPDES program and my staff will assist you in any way possible. Please reference AO Docket Number CWA-06-2023-1773 and TPDES Permit Number NM0020672 on your response. If you have any questions, please contact Mr. Damon McElroy, P.E. of my staff, at (214) 665-7159 or mcelroy.damon@epa.gov. Sincerely, Digitally signed by CHERYL SEAGER Date: 2023.07.21 10:08:41 -05'00' Cheryl T. Seager, Director Enforcement and Compliance Assurance Division Enclosure(s) ec: Mr. Robert Hamblen Acting Public Works Director 110 West Aztec Avenue Gallup, NM 87301 rhamblen@gallupnm.gov Ms. Maryann Ustick City Manager 110 W Aztec Ave. Gallup, NM 87301 manager@gallupnm.gov Ms. Shelly Lemon, Chief New Mexico Environment Department Surface Water Quality Bureau shelly.lemon@env.nm.gov Ms. Susan Lucas Kamat, Program Manager New Mexico Environment Department Point Source Regulation Section Surface Water Quality Bureau susan.lucaskamat@env.nm.gov UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Region 6 1201 Elm St. Suite 500 Dallas, TX 75270-2102 FINDINGS OF VIOLATION AND COMPLIANCE ORDER Docket Number: CWA-06-2023-1773; NPDES Permit Number: NM0020672 STATUTORY AUTHORITY The following findings are made, and Order issued, under the authority vested in the Administrator of the United States Environmental Protection Agency (EPA), Section 309(a) of the Clean Water Act (the Act), 33 U.S.C. 1319(a). The Administrator of EPA delegated the authority to issue this Order to the Regional Administrator of EPA Region 6, who delegated this authority to the Director of the Enforcement and Compliance Assurance Division. FINDINGS 1. The City of Gallup (Respondent) is a "person," as that term is defined at Section 502(5) of the Act, 33 U.S.C. 1362(5), and 40 C.F.R. 122.2. 7. The Respondent applied for and was issued NPDES Permit No. NM0020672 (herein "the permit") under Section 402 of the Act, 33 U.S.C. 1342, which became effective on November 1, 2017, and expired on October 31, 2022. At the relevant times, until October 31, 2022, the Respondent was authorized to discharge pollutants from the facility to waters of the United States only in compliance with the specific terms and conditions of the permit. 8. The Respondent failed to apply for a new permit as required by 40 C.F.R. 122.21(d)(1) and Part III of the expired permit. Therefore, Respondent has operated the facility and discharged pollutants without a permit from November 1, 2022, to current. 9. Each unpermitted discharge is a violation of Section 301 of the Act, 33 U.S.C. 1311. 2. At all times relevant to this Order (all relevant times), Respondent owned or operated the Gallup Wastewater Treatment Plant (facility) located at 800 Sweetwater Place, McKinley County, New Mexico, and was, therefore, an "owner or operator" within the meaning of 40 C.F.R. 122.2. 3. At all relevant times, the facility acted as a "point source" of a "discharge" of "pollutants" with its final wastewater discharge to the receiving waters named Puerco River Segment 20.6.4.99, thence to the Lower Colorado River of the Lower Colorado River Basin, which are "waters of the United States" within the meaning of Section 502 of the Act, 33 U.S.C. 1362, and 40 C.F.R. 122.2. 4. Because Respondent owned or operated a facility that acted as a point source of discharges of pollutants to waters of the United States, Respondent and the facility were subject to the Act and the National Pollutant Discharge Elimination System (NPDES) program. 5. Under Section 301 of the Act, 33 U.S.C. 1311, it is unlawful for any person to discharge any pollutant from a point source to waters of the United States, except with the authorization of, and in compliance with, an NPDES permit issued pursuant to Section 402 of the Act, 33 U.S.C. 1342. 6. Section 402(a) of the Act, 33 U.S.C. 1342(a), provides that the Administrator of EPA may issue permits under the NPDES program for the discharge of pollutants from point sources to waters of the United States. Any such discharge is subject to the specific terms and conditions prescribed in the applicable permit. 10. The permit includes "Monitoring and Reporting Requirements" that require Respondent to sample and test its effluent and monitor its compliance with permit conditions according to specific procedures, to determine the facility's compliance or noncompliance with the permit and applicable regulations. The permit also requires Respondent to file with the New Mexico Environment Department and EPA certified Discharge Monitoring Reports (DMRs) of the results of monitoring, and Noncompliance Reports when appropriate. 11. The permit contains "Effluent Limitations and Monitoring Requirements" that place certain limitations on the quality and quantity of effluent discharged by Respondent. The relevant discharge limitations are specified in Attachment A, which is incorporated herein by reference. 12. Certified DMRs filed by Respondent in compliance with the permit show discharges of pollutants from the facility that exceed the permitted effluent limitations or failed the permitted whole effluent toxicity test (WET) results as specified in Attachment B, which is incorporated herein by reference. 13. Each quarterly failed WET test requires the facility to conduct additional follow-up actions as contained in permit Part II.F including three additional monthly WET tests. DMR records indicated that these retests were not completed for the relevant reporting periods. 14. Each instance in which Respondent discharged pollutants to waters of the United States in amounts exceeding the effluent limitations or failing the WET requirements as contained in the permit was a violation of the permit and Section 301 of the Act, 33 U.S.C. 1311. Docket No. CWA-06-2023-1773 Page 2 SECTION 309(a)(3) COMPLIANCE ORDER GENERAL PROVISIONS Based on the foregoing Findings and pursuant to the authority of Section 309(a)(3) of the Act, 33 U.S.C. 1319(a)(3), EPA hereby orders Respondent to take the following action: A. Take such measures as are necessary to comply with all permit conditions, Effluent Limitations, Monitoring and Reporting Requirements, and obtaining a new permit no later than thirty (30) days from the effective date of the Order. B. Within sixty (60) days of the effective date of this Order, Respondent shall submit a list of the specific actions taken to correct the effluent violations specified in Attachment B and to obtain a new permit. C. Within sixty (60) days of the effective date of this Order, Respondent shall provide written certification to EPA Region 6 that the effluent violations cited herein have been corrected and the facility is compliant with the limits cited in Attachment A. D. In the event the Respondent believes complete correction of the violations cited herein is not possible within sixty (60) days of the effective date of this Order, Respondent shall, within sixty (60) days of the effective date of this Order, submit a comprehensive written plan for the elimination of the cited violations within the shortest possible time. Such plan shall describe in detail the specific corrective actions to be taken and why such actions are sufficient to correct the violations. The plan shall include a detailed schedule for the elimination of the violations as well as measures to prevent these or similar violations from recurring. E. Any information or correspondence submitted by Respondent to EPA under this Order shall be submitted, via email, to the following: Mr. Damon McElroy, P.E. mcelroy.damon@epa.gov Respondent may seek federal judicial review of the Order pursuant to Chapter 7 of the Administrative Procedure Act, 5 U.S.C. 701-706. Issuance of this Section 309(a)(3) Compliance Order shall not be deemed an election by EPA to waive any administrative, judicial, civil, or criminal action to seek penalties, fines or other relief under the Act for the violations cited herein, or other violations that become known to EPA. EPA reserves the right to seek any remedy available under the law that it deems appropriate. Failure to comply with this Section 309(a)(3) Compliance Order or the Act may result in further administrative action, or a civil judicial action initiated by the United States Department of Justice. This Order does not constitute a waiver or modification of the terms or conditions of Respondent's NPDES permit, which remain in full force and effect. Compliance with the terms and conditions of this Order does not relieve Respondent of its obligation to comply with any applicable federal, state, or local law or regulation. The effective date of this Order is the date it is received by Respondent. -XO\ Date Digitally signed by CHERYL SEAGER Date: 2023.07.21 10:05:39 -05'00' Cheryl T. Seager, Director Enforcement and Compliance Assurance Division Attachment A Gallup WWTP - NM0020672 NPDES Permit Limits Gallup WWTP -NPDES Permit Limits Table, Outfall 001: Effluent Characteristics Discharge Limitations Permit Issued 11/01/2017 and expired 10/31/2022 BOD, 5-day 30 Day Average 876 lb/d BOD, 5-day 30 Day Average 30 mg/L BOD, 5-day 7 Day Average 1314 lb/d BOD, 5-day BOD, 5-day, percent removal 7 Day Average 30 Day Average 45 mg/L 85.0% TSS 30 Day Average 876 lb/d TSS 30 Day Average 30 mg/L TSS 7 Day Average 1314 lb/d TSS TSS, percent removal E. coli E. coli 7 Day Average 30 Day Average 30 Day Average Daily Maximum 45 mg/L 85.0% 126 MPN/100mL 410 MPN/100mL Chlorodibromomethane 30 Day Average 0.012 lb/d Chlorodibromomethane Chlorodibromomethane Chlorodibromomethane Chlorine, total residual Daily Maximum 30 Day Average Daily Maximum Daily Maximum 0.012 lb/d 0.4 g/L 0.4 g/L 11 g/L Chloroform 30 Day Average 0.166 lb/d Chloroform Daily Maximum 0.166 lb/d Chloroform 30 Day Average 5.7 mg/L Chloroform Daily Maximum 5.7 mg/L Di[2-ethylhexyl] phthalate 30 Day Average 0.035 lb/d Di[2-ethylhexyl] phthalate Di[2-ethylhexyl] phthalate Di[2-ethylhexyl] phthalate Daily Maximum 30 Day Average Daily Maximum 0.035 lb/d 1.2 g/L 1.2 g/L TDS 30 Day Average 11,683 lb/d TDS 30 Day Average 400 mg/L *Whole Effluent Toxicity (P. promelas 7-Day NOEC) 7 Day Minimum 100% *Whole Effluent Toxicity (P. promelas 7-Day NOEC) 30 Day Average 100% * Whole Effluent Toxicity testing in NPDES Permit accordance. Attachment B Gallup WWTP - NM0020672 NPDES Effluent Exceedances Gallup WWTP -Effluent Violations Table: Monitoring Period End Date Parameter Desc Limit Parameter Limit Unit Limit Value DMR Value NPDES Permit Issued 11/01/2017 and expired 10/31/2022 07/31/2018 07/31/2018 07/31/2018 08/31/2018 09/30/2018 09/30/2018 10/31/2018 11/30/2018 01/31/2019 02/28/2019 04/30/2019 04/30/2019 04/30/2019 04/30/2019 06/30/2019 06/30/2019 06/30/2019 07/31/2019 07/31/2019 07/31/2019 07/31/2019 07/31/2019 09/30/2019 09/30/2019 11/30/2019 12/31/2019 12/31/2019 12/31/2019 02/29/2020 Chlorodibromomethane E. coli E. coli Chlorodibromomethane Whole Effluent Toxicity [WET] P. promelas Whole Effluent Toxicity [WET] P. promelas Chlorodibromomethane Chloroform Solids, total dissolved Solids, total dissolved BOD, 5-day, 20 deg. C BOD, 5-day, percent removal Copper, total [as Cu] Solids, total dissolved BOD, 5-day, 20 deg. C BOD, 5-day, 20 deg. C BOD, 5-day, percent removal BOD, 5-day, 20 deg. C BOD, 5-day, percent removal Chloroform Solids, suspended percent removal Solids, total dissolved Whole Effluent Toxicity [WET] P. promelas Whole Effluent Toxicity [WET] P. promelas Chloroform Chloroform Whole Effluent Toxicity [WET] P. promelas Whole Effluent Toxicity [WET] P. promelas Di[2-ethylhexyl] phthalate [DEHP] Daily Max. 30 Day Ave. Daily Max. Daily Max. 7 Day Min. 30 Day Ave. Daily Max. Daily Max. 30 Day Ave. 30 Day Ave. 30 Day Ave. 30 Day Ave. 30 Day Ave. 30 Day Ave. 30 Day Ave. 7 Day Ave. 30 Day Ave. 30 Day Ave. 30 Day Ave. Daily Max. 30 Day Ave. 30 Day Ave. 7 Day Min. 30 Day Ave. Daily Max. Daily Max. 7 Day Min. 30 Day Ave. Daily Max. ug/L 0.4 MPN/100mL 126 MPN/100mL 410 ug/L 0.4 % 100 % ug/L ug/L mg/L mg/L mg/L % ug/L mg/L mg/L lb/d % mg/L % ug/L % mg/L % 100 0.4 5.7 400 400 30 85 14.5 400 30 1314 85 30 85 5.7 85 400 100 % 100 ug/L 5.7 ug/L 5.7 % 100 % 100 ug/L 1.2 0.51 146 2419.6 0.44 1 1 1.6 5.8 452 421 46 69 17.0 513 56 1437.5 76.3 48 74.4 6.0 83.3 434 0 0 10.0 9.8 44 44 1.7 Page 1 of 5 Monitoring Period End Date 02/29/2020 03/31/2020 03/31/2020 06/30/2020 06/30/2020 09/30/2020 09/30/2020 11/30/2020 11/30/2020 11/30/2020 11/30/2020 11/30/2020 11/30/2020 11/30/2020 11/30/2020 11/30/2020 11/30/2020 12/31/2020 12/31/2020 12/31/2020 12/31/2020 12/31/2020 12/31/2020 12/31/2020 12/31/2020 02/28/2021 04/30/2021 04/30/2021 04/30/2021 04/30/2021 04/30/2021 04/30/2021 Parameter Desc Solids, total dissolved Whole Effluent Toxicity [WET] P. promelas Whole Effluent Toxicity [WET] P. promelas Whole Effluent Toxicity [WET] P. promelas Whole Effluent Toxicity [WET] P. promelas Whole Effluent Toxicity [WET] P. promelas Whole Effluent Toxicity [WET] P. promelas Chlorodibromomethane Chlorodibromomethane Chlorodibromomethane Chloroform Chloroform Chloroform Di[2-ethylhexyl] phthalate [DEHP] Di[2-ethylhexyl] phthalate [DEHP] Di[2-ethylhexyl] phthalate [DEHP] Di[2-ethylhexyl] phthalate [DEHP] Chlorodibromomethane Chlorodibromomethane Chlorodibromomethane Chlorodibromomethane Chloroform Chloroform Chloroform Chloroform Chlorine, total residual BOD, 5-day, 20 deg. C BOD, 5-day, 20 deg. C BOD, 5-day, 20 deg. C BOD, 5-day, 20 deg. C BOD, 5-day, percent removal Di[2-ethylhexyl] phthalate [DEHP] Limit Parameter 30 Day Ave. 7 Day Min. 30 Day Ave. 7 Day Min. 30 Day Ave. 7 Day Min. 30 Day Ave. 30 Day Ave. Daily Max. Daily Max. 30 Day Ave. Daily Max. Daily Max. 30 Day Ave. 30 Day Ave. Daily Max. Daily Max. 30 Day Ave. 30 Day Ave. Daily Max. Daily Max. 30 Day Ave. 30 Day Ave. Daily Max. Daily Max. Daily Max. 30 Day Ave. 30 Day Ave. 7 Day Ave. 7 Day Ave. MO AV MN Daily Max. Limit Unit mg/L % % % % % % ug/L lb/d ug/L ug/L lb/d ug/L lb/d ug/L lb/d ug/L lb/d ug/L lb/d ug/L lb/d ug/L lb/d ug/L ug/L lb/d mg/L lb/d mg/L % ug/L Limit Value DMR Value 400 100 100 100 100 100 100 0.4 0.012 0.4 5.7 0.166 5.7 0.035 1.2 0.035 1.2 0.012 0.4 0.012 0.4 0.166 5.7 0.166 5.7 11 876 30 1314 45 85 1.2 427 1 1 56 56 56 56 0.6 0.037 2.7 8.4 0.581 42.0 0.05 3.0 0.703 41.7 0.014 1.1 0.032 2.4 0.182 15.2 0.6 45.0 1200 961.7 56.8 2882 163 70.9 1.9 Page 2 of 5 Monitoring Period End Date 04/30/2021 05/31/2021 06/30/2021 06/30/2021 07/31/2021 07/31/2021 07/31/2021 07/31/2021 07/31/2021 07/31/2021 08/31/2021 08/31/2021 08/31/2021 08/31/2021 08/31/2021 09/30/2021 09/30/2021 10/31/2021 10/31/2021 10/31/2021 10/31/2021 10/31/2021 10/31/2021 10/31/2021 10/31/2021 11/30/2021 11/30/2021 11/30/2021 11/30/2021 11/30/2021 11/30/2021 11/30/2021 11/30/2021 11/30/2021 Parameter Desc Limit Parameter Solids, suspended percent removal Di[2-ethylhexyl] phthalate [DEHP] Whole Effluent Toxicity [WET] P. promelas Whole Effluent Toxicity [WET] P. promelas Chlorodibromomethane Chlorodibromomethane Chloroform Chloroform Chloroform Chloroform Chlorodibromomethane Chlorodibromomethane Chloroform Chloroform Solids, total suspended Whole Effluent Toxicity [WET] P. promelas Whole Effluent Toxicity [WET] P. promelas Chlorodibromomethane Chlorodibromomethane Chloroform Chloroform Chloroform Di[2-ethylhexyl] phthalate [DEHP] Di[2-ethylhexyl] phthalate [DEHP] Solids, total suspended Chlorodibromomethane Chlorodibromomethane Chlorodibromomethane Chlorodibromomethane Chloroform Chloroform Chloroform Chloroform Di[2-ethylhexyl] phthalate [DEHP] 30 Day Ave. Daily Max. 7 Day Min. 30 Day Ave. Daily Max. Daily Max. 30 Day Ave. 30 Day Ave. Daily Max. Daily Max. Daily Max. Daily Max. Daily Max. Daily Max. 7 Day Ave. 7 Day Min. 30 Day Ave. Daily Max. Daily Max. 30 Day Ave. Daily Max. Daily Max. Daily Max. Daily Max. 7 Day Ave. 30 Day Ave. 30 Day Ave. Daily Max. Daily Max. 30 Day Ave. 30 Day Ave. Daily Max. Daily Max. Daily Max. Limit Unit % ug/L % % lb/d ug/L lb/d ug/L lb/d ug/L lb/d ug/L lb/d ug/L mg/L % % lb/d ug/L ug/L lb/d ug/L lb/d ug/L mg/L lb/d ug/L lb/d ug/L lb/d ug/L lb/d ug/L lb/d Limit Value 85 1.2 100 100 0.012 0.4 0.166 5.7 0.166 5.7 0.012 0.4 0.166 5.7 45 100 100 0.012 0.4 5.7 0.166 5.7 0.035 1.2 45 0.012 0.4 0.012 0.4 0.166 5.7 0.166 5.7 0.035 DMR Value 84.7 2.1 42 42 0.036 2.0 0.171 10.4 1.166 65. 0.018 1.0 0.31 17.0 47 0 0 0.032 2.1 5.8 0.44 29.0 0.159 8.4 68 0.041 2.6 0.288 18.0 0.19 12.6 0.411 29.0 0.084 Page 3 of 5 Monitoring Period End Date 11/30/2021 11/30/2021 12/31/2021 12/31/2021 12/31/2021 12/31/2021 12/31/2021 01/31/2022 01/31/2022 01/31/2022 01/31/2022 01/31/2022 01/31/2022 01/31/2022 01/31/2022 01/31/2022 01/31/2022 03/31/2022 03/31/2022 03/31/2022 03/31/2022 03/31/2022 03/31/2022 03/31/2022 04/30/2022 04/30/2022 04/30/2022 04/30/2022 05/31/2022 05/31/2022 05/31/2022 06/30/2022 06/30/2022 06/30/2022 Parameter Desc Di[2-ethylhexyl] phthalate [DEHP] Solids, total dissolved Chlorodibromomethane Chlorodibromomethane Chloroform Chloroform Chloroform Chlorodibromomethane Chlorodibromomethane Chlorodibromomethane Chlorodibromomethane Chloroform Chloroform Chloroform Chloroform Di[2-ethylhexyl] phthalate [DEHP] Solids, total dissolved Chloroform Chloroform Solids, total suspended Solids, total suspended Solids, total suspended Whole Effluent Toxicity [WET] P. promelas Whole Effluent Toxicity [WET] P. promelas Di[2-ethylhexyl] phthalate [DEHP] E. coli E. coli Solids, total suspended Di[2-ethylhexyl] phthalate [DEHP] Di[2-ethylhexyl] phthalate [DEHP] E. coli E. coli E. coli Solids, total dissolved Limit Parameter Daily Max. 30 Day Ave. Daily Max. Daily Max. 30 Day Ave. Daily Max. Daily Max. 30 Day Ave. 30 Day Ave. Daily Max. Daily Max. 30 Day Ave. 30 Day Ave. Daily Max. Daily Max. Daily Max. 30 Day Ave. Daily Max. Daily Max. 30 Day Ave. 7 Day Ave. 7 Day Ave. 7 Day Min. 30 Day Ave. Daily Max. 30 Day Ave. Daily Max. 7 Day Ave. Daily Max. Daily Max. Daily Max. 30 Day Ave. Daily Max. 30 Day Ave. Limit Unit Limit Value ug/L mg/L lb/d ug/L ug/L lb/d ug/L lb/d ug/L lb/d ug/L lb/d ug/L lb/d ug/L ug/L mg/L lb/d ug/L mg/L lb/d mg/L % 1.2 400 0.012 0.4 5.7 0.166 5.7 0.012 0.4 0.012 0.4 0.166 5.7 0.166 5.7 1.2 400 0.166 5.7 30 1314 45 100 % 100 ug/L 1.2 MPN/100mL 126 MPN/100mL 410 mg/L 45 lb/d 0.035 ug/L 1.2 MPN/100mL MPN/100mL MPN/100mL lb/d 410 126 410 11683 DMR Value 7.0 436.1 0.023 1.4 7.7 0.455 27.0 0.021 1.3 0.07 4.3 0.275 16.7 0.585 36.0 1.5 411.9 0.232 6.4 30.3 1592.9 100 56 56 1.5 1011 1011 65 0.096 6.6 851 1011 1011 16899 Page 4 of 5 Monitoring Period End Date Parameter Desc Limit Parameter Limit Unit Limit Value DMR Value 06/30/2022 06/30/2022 07/31/2022 08/31/2022 08/31/2022 09/30/2022 09/30/2022 09/30/2022 09/30/2022 09/30/2022 09/30/2022 10/31/2022 10/31/2022 10/31/2022 10/31/2022 Whole Effluent Toxicity [WET] P. promelas Whole Effluent Toxicity [WET] P. promelas Chlorine, total residual Chlorine, total residual Di[2-ethylhexyl] phthalate [DEHP] Chlorodibromomethane Chlorodibromomethane Chloroform Chloroform Di[2-ethylhexyl] phthalate [DEHP] E. coli Chloroform Chloroform Chloroform Chloroform 7 Day Min. 30 Day Ave. Daily Max. Daily Max. Daily Max. Daily Max. Daily Max. Daily Max. Daily Max. Daily Max. Daily Max. 30 Day Ave. 30 Day Ave. Daily Max. Daily Max. % 100 % 100 ug/L 11 ug/L 11 ug/L 1.2 lb/d 0.012 ug/L 0.4 lb/d 0.166 ug/L 5.7 ug/L 1.2 MPN/100mL lb/d ug/L lb/d ug/L 410 0.166 5.7 0.166 5.7 NPDES Permit Expired 10/31/2022 (pollutants discharged without permit authorization) 11/30/2022 11/30/2022 11/30/2022 11/30/2022 11/30/2022 11/30/2022 11/30/2022 11/30/2022 11/30/2022 11/30/2022 12/31/2022 12/31/2022 12/31/2022 12/31/2022 12/31/2022 03/31/2023 04/30/2023 Chlorodibromomethane Chlorodibromomethane Chlorodibromomethane Chlorodibromomethane Chloroform Chloroform Chloroform Chloroform Di[2-ethylhexyl] phthalate [DEHP] Di[2-ethylhexyl] phthalate [DEHP] Chlorodibromomethane Chlorodibromomethane Chloroform Chloroform Chloroform Chloroform E. coli 30 Day Ave. 30 Day Ave. Daily Max. Daily Max. 30 Day Ave. 30 Day Ave. Daily Max. Daily Max. Daily Max. Daily Max. Daily Max. Daily Max. 30 Day Ave. Daily Max. Daily Max. Daily Max. Daily Max. lb/d 0.012 ug/L 0.4 lb/d 0.012 ug/L 0.4 lb/d 0.166 ug/L 5.7 lb/d 0.166 ug/L 5.7 lb/d 0.035 ug/L 1.2 lb/d ug/L ug/L lb/d ug/L ug/L MPN/100mL 0.012 0.4 5.7 0.166 5.7 5.7 410 0 0 30 30 1.3 0.035 1.9 0.237 13.0 1.6 10112 0.167 7.9 0.615 28.0 0.022 1.5 0.089 5.5 0.194 13.6 0.518 32.0 0.067 4.3 0.029 2.8 8.2 0.219 23.0 5.9 1011 Page 5 of 5