Document 2NjL1eDqqdm89mpv8Eog37gZp

Region 6 - Enforcement & Compliance Assurance Division INSPECTION REPORT Inspection Date(s): Media Program: Regulatory Program(s) Company Name: Facility Name: Facility Physical Location: (city, state, zip code) Mailing address: (city, state, zip code) County/Parish: Facility Phone Number Facility Contact: 03/27/2025 Water CWA Village of Angel Fire Angel Fire WWTP 67 Services Road Angel Fire, New Mexico Post Office Box 610 Angel Fire, New Mexico 87710 Taos 575-595-5190 Arwin Vasquez Wastewater/Compliance Superintendent avasquez@angelfirenm.gov FRS Number: 110012304443 Identification/Permit Number: Media Identifier Number: NAICS: SIC: NM0030503 NA 221320 4952 Personnel participating in inspection: Arwin Vasquez Village of Angel Fire David Esparza EPA-R6/ECDWM Wastewater/Compliance Superintendent Environmental Engineer EPA Lead Inspector Signature/Date DAVID ESPARZA Date: 2025.05.22 15:50:40 -06'00' Digitally signed by DAVID ESPARZA David Esparza Date Supervisor Signature/Date ROBERTO BERNIER Date: 2025.05.29 08:28:10 -05'00' Digitally signed by ROBERTO BERNIER Roberto Bernier Date 6ENFORM-020-R8.2 (02/12/2020) 1 Section I - INTRODUCTION Village of Angel Fire/Angel Fire WWTP Permit No. NM0030503 Inspection Date 03/27/2025 PURPOSE OF THE INSPECTION United States Environmental Protection Agency (EPA) Region 6 inspector David Esparza, PE, arrived at the Village of Angel Fire (Angel Fire) Wastewater Treatment Plant (WWTP) at approximately 12:00 PM on March 27, 2025, for an unannounced inspection. I spoke to Mr. Arwin Vasquez, Wastewater/Compliance Superintendent via telephone as he was unavailable and verbalized to him that this was an EPA inspection to determine the facility's compliance under the Clean Water Act (CWA) and the requirements of the National Pollutant Discharge Elimination System (NPDES) permit program, in accordance with the CWA. The generation of this report is based on information supplied by Angel Fire representatives, observations made by the EPA inspector, and records and reports maintained by the permittee (Angel Fire), and the EPA. It should be noted the WWTP also maintains a discharge permit (DP-56) issued by the New Mexico Environment Department (NMED), Groundwater Quality Bureau (GWQB) for any discharges that are done to designated land application sites. FACILITY DESCRIPTION The WWTP is classified as a minor discharger with a design capacity of 0.5 MGD. The current average daily flow is approximately 0.1 MGD, however high seasonal flows can reach up to .45 MGD. The facility is located at 67 Services Road (also described as located approximately 1.5 miles south of the intersection of US Highway 64 (US-64) and New Mexico Highway 434 (NM-434), Angel Fire, Colfax County, New Mexico (depicted in Aerial Image #1 below). The WWTP facility serves a population of approximately 1,100 residents. The WWTP is operated by staff within the Public Works Department and consists of 4 full-time equivalent (FTE) positions, during the hours of 7:00 AM to 3:30 PM daily. On-call staff is available on an as needed basis. The WWTP commenced operation in 1999 and treats domestic wastewater using a sequence batch reactor (SBR) biological treatment. Wastewater is pumped by lift stations in the Village to the main lift station south of the SBR plant (Identified in Table 1 below). This lift station is equipped with four (4) submersible pumps that pump the influent through a 14-inch force main up to the facility where it can be diverted to either of the two (2) reactor basins, where the flow is decanted. Currently, only one (1) basin is being used for influent wastewater treatment, while the other is being used for treatment and storage of sludge. 2 Village of Angel Fire/Angel Fire WWTP Permit No. NM0030503 Inspection Date 03/27/2025 Aerial Image #1: Overall view of the Village of Angel Fire's Wastewater Treatment Plant. Aerial from Google Earth maps. Table 1: Village of Angel Fire Lift Stations Lift Station Address 1 Main Intersection of Darrell Benjamin and Camino Grande 2 AF-1 Camino Grande Intersection of Camino Grande and Hwy-434 3 AF-2 Fria 2 Intersection of Hwy-434 and Fria Road 4 Cabin Share Intersection/entrance of Cabin Share Apartments and Via Del Rey 5 Valley Road Cul-de-sac across from Community Center 6 PID-1 San Andres Drive Intersection of Via Del Rey and San Andres Drive 7 PID-2 Woodlands Place Woodlands Drive near intersection of Champions Terrace 8 PID-2 San Juan San Juan Drive near intersection of San Andres Drive The SUEZ Aqua-ray 40 HO ultraviolet (UV) disinfection system was installed in September 2024 and consists of two(2) banks of 5 rows of bulbs situated in a concrete channel. The disinfected effluent is stored in two lagoons prior to being discharged to the La Cieneguilla Creek or to a land application area. 3 Village of Angel Fire/Angel Fire WWTP Permit No. NM0030503 Inspection Date 03/27/2025 Waste activated sludge (WAS) from the SBR basin is first stored in the unused reactor basin before it goes into the aerobic digester. The digester is situated on the south side of the reactor basin. Sludge pumped from the digester is dewatered by a belt press within the dewatering building. Dewatered sludge is transferred to a roll-off container and transported approximately 50-miles to the Northeastern New Mexico Regional Landfill in Wagon Mound, New Mexico. Septage and domestic (typically greywater) wastewater is screened after a wet well before entering the headworks. According to WWTP records approximately 1,300 gallons of septage on average is received on a weekly basis. The Village is in the process of updating their existing written policies and procedures to address any potential sanitary sewer overflow events (SSOs), and standard operating procedures (SOPs) pertaining facility operations and maintenance (O&M). Furthermore, an updated Fats, Oils and Grease (FOG) program is also being completed with respect to existing and/or new FOG contributors. Currently, there is no Industrial User (IU) contributing to the WWTP. Section II - OBSERVATIONS I observed the following and/or the following information was provided or stated on March 27, 2025. Overall maintenance and operation of the WWTP appeared to be satisfactory. All equipment looked to be running properly and effectively. The WWTP was in the process of pumping the supernatant from one of the process basins for cleaning. The WWTP has completed upgrading the exiting headworks building and installation of new isolation valves. Additional upgrades or improvements included, new mixers within the existing SBR basins, replacement of the existing UV disinfection system, construction of a new influent equalization (EQ) basin adjacent to the SBR basins and upgrading the Supervisory Control and Data Acquisition (SCADA) system. Section III - AREAS OF CONCERN No Areas of Concern were observed or identified EPA Region 6 inspector David Esparza conducted a closing conference via telephone with Mr. Arwin Vasquez, Wastewater/Compliance Superintendent at approximately 1:30 PM on March 27, 2025, for the inspection. Section IV - FOLLOW UP No additional information was received by EPA, after exiting the Facility on March 27, 2025. 4