Document 8R5x2gB17dk6mwOrpe2GZVLe5

Region 6 - Enforcement & Compliance Assurance Division INSPECTION REPORT Inspection Date(s): Media Program: Regulatory Program(s) 06/14/2023 Water NPDES Company Name: Facility Name: Facility Physical Location: (city, state, zip code) Mailing address: (city, state, zip code) County/Parish: Facility Phone Number Facility Contact: Pueblo of Tesuque Tesuque Casino 7 Tesuque Road Santa Fe, New Mexico 87506-5512 20 TP-828 Santa Fe, New Mexico 87506 Santa Fe 505-984-8414 ext-696 Peter Romero Director of Facilities Peter.romero@tesuquecasino.com FRS Number: Identification/Permit Number: Media Identifier Number: NAICS: SIC: 110070381669 NM0031224 NA 221320 4952 Personnel participating in inspection: Peter Romero Tesuque Casino Leroy Quintana Contract Operator David Esparza EPA-R6/ECDWM Director of Facilities Operator Environmental Engineer EPA Lead Inspector Signature/Date DAVID ESPARZA Date: 2023.07.20 20:15:05 -06'00' Digitally signed by DAVID ESPARZA David Esparza Date Supervisor Signature/Date ROBERTO BERNIER Date: 2023.07.25 18:06:09 -05'00' Digitally signed by ROBERTO BERNIER Roberto Bernier Date 6ENFORM-019-R8.2 (02/12/2020) 1 Pueblo of Tesuque/Tesuque Casino WWTP Permit No. NM0031224 Inspection Date 06/14/2023 Section I - INTRODUCTION PURPOSE OF THE INSPECTION EPA Region 6 inspector David Esparza, PE, arrived at the Pueblo of Tesuque Casino Wastewater Treatment Plant (WWTP) (Tesuque Casino) office at approximately 9:00 AM on June 14, 2023, for an announced inspection. I met with Mr. Peter Romero, presented my credentials, and informed him that this was an EPA inspection to determine Tesuque Casino's WWTP compliance under the Clean Water Act (CWA). This compliance evaluation inspection (CEI) was conducted under the authority 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 Tesuque Casino representatives, observations made by the United States Environmental Protection Agency (US EPA) inspector, and records and reports maintained by the permittee, and the US EPA. Before leaving the facility, an exit briefing was held at approximately 12:00 PM with Mr. Romero to discuss or address any questions. FACILITY DESCRIPTION The WWTP is a minor discharger with a design flow capacity of 0.08 MGD (million gallons per day). Currently the average daily discharge flow equates to 4,000gpd-(gallons per day). The facility is located approximately 0.10-miles west of U.S Highway 84/285 (aka Santa Fe Highway), Santa Fe County, New Mexico (depicted in Aerial Image #1 below). The WWTP facility serves the Casino and associated administrative buildings. The WWTP is overseen by contract operator Mr. Leroy Quintana on a scheduled basis. A Supervisory Control and Data Acquisition (SCADA) system provides around the clock monitoring of WWTP operations. After entering the headworks structure, the influent is piped into an equalization tank (EQ tank), thence to an Ovivo microBLOXTM membrane bioreactor (MBR). Samples are collected via an automatic sampler located after a bank of six (6) ultraviolet (UV) disinfection units prior to discharge to a 40K-gallon effluent storage tank. Routine weekly maintenance is performed on the UV system to ensure the proper disinfection of the effluent. Currently, in lieu of using the onsite belt press, due to low waste stream volume, the sludge is placed into an approximate 8K-gallon storage tank that is pumped and transported for disposal. Current permit conditions allow part of the treated effluent to be used for landscape irrigation within the facility grounds typically during the months of March through November and/or piped to a subsurface drain field. The WWTP currently maintains a series of ten (10) leach fields beneath the existing asphalt paved parking areas. Though an intermittent discharge of the effluent, approved via Outfall 001, to the Pojoaque River is possible, the facility normally utilizes the effluent for landscape irrigation or pumps it to the leach fields. The WWTP maintains a backup diesel generator for power that is exercised weekly, typically every Tuesday. 2 Pueblo of Tesuque/Tesuque Casino WWTP Permit No. NM0031224 Inspection Date 06/14/2023 Aerial Image #1: Overall view of the Pueblo of Tesuque-Tesuque Casino Wastewater Treatment Plant Location. Aerial from Google Earth Section II - OBSERVATIONS I observed the following and/or the following information was provided and/or stated: A Supervisory Control and Data Acquisition (SCADA) system provides around the clock monitoring of WWTP operations. Currently the onsite belt press is not in use due to low waste stream volume. It was stated the sludge is placed into a storage tank that is pumped and transported for disposal. Effluent totalizing flow meter readings are recorded daily. Mr. Quintana also stated there has been no discharge through the outfall from start up to present day. The WWTP did have secure perimeter fencing and the premises are under camera surveillance; thus, limiting access. Additionally, the major components of the WWTP are located within a locked building. Section III - AREAS OF CONCERN I observed no areas of concern at the time of the inspection. Section IV - FOLLOW UP No additional information was received by EPA after exiting the Facility on June 14, 2023. Section V - LIST OF APPENDICES 3 Pueblo of Tesuque/Tesuque Casino WWTP Permit No. NM0031224 Inspection Date 06/14/2023 Appendix 1 - Photo Log - 8 photos taken 06/14/2023 4 Pueblo of Tesuque/Tesuque Casino WWTP Permit No. NM0031224 Inspection Date 06/14/2023 Appendix 1 Photograph Log UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 1 Location: Pueblo of Tesuque-Tesuque Casino WWTP City: Pueblo of Tesuque County/Parish: Santa Fe State: New Mexico View of WWTP 40K-gallon effluent storage tank (DSCN2568) Photographed by D. Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 2 Location: Pueblo of Tesuque-Tesuque Casino WWTP City: Pueblo of Tesuque County/Parish: Santa Fe State: New Mexico View of equalization (EQ) tank (DSCN2569) Photographed by D. Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 3 Location: Pueblo of Tesuque-Tesuque Casino WWTP City: Pueblo of Tesuque County/Parish: Santa Fe State: New Mexico View of the Ovivo microBLOXTM membrane bioreactor (MBR). (DSCN2570) Photographed by D. Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 4 Location: Pueblo of Tesuque-Tesuque Casino WWTP City: Pueblo of Tesuque County/Parish: Santa Fe State: New Mexico View of the Supervisory Control and Data Acquisition (SCADA) system. (DSCN2574) Photographed by D. Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 5 Location: Pueblo of Tesuque-Tesuque Casino WWTP City: Pueblo of Tesuque County/Parish: Santa Fe State: New Mexico View of the six (6) banks of ultraviolet (UV) disinfection units prior to discharge to a 40K-gallon effluent storage tank. (DSCN2576) Photographed by D. Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 6 Location: Pueblo of Tesuque-Tesuque Casino WWTP City: Pueblo of Tesuque County/Parish: Santa Fe State: New Mexico View of the headworks, lift station well pit and generator. (DSCN2581) Photographed by D. Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 7 Location: Pueblo of Tesuque-Tesuque Casino WWTP City: Pueblo of Tesuque County/Parish: Santa Fe State: New Mexico View of the leach field automatic valves piping. (DSCN2584) Photographed by D. Esparza UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Photograph Log Photo No. 8 Location: Pueblo of Tesuque-Tesuque Casino WWTP City: Pueblo of Tesuque County/Parish: Santa Fe State: New Mexico View of the landscape irrigation piping. Note: this piping configuration is located to the right of the above photograph. Additionally, a valve isolates the two (2) systems from each other. (DSCN2585) Photographed by D. Esparza