2026-01-11 · Arbor Hills Landfill · evidence · notable
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
EGLE conducted a perimeter air quality survey of Arbor Hills on January 8, 2026, using methane detection equipment. A significant methane plume was detected along 6 Mile Road covering approximately 1000 feet, with Level 3 (strong) odors in the yellow/red circles; the strongest odors corresponded to highest methane concentrations and likely originated from the current working face area under low vacuum extension.
Key data point: Level 3 methane/landfill gas odors detected over ~1000 feet on 6 Mile Road, January 8, 2026; strongest odors corresponded to highest methane concentrations from current working face area.
2026-01-08 · Arbor Hills Remediation Area · evidence · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a wastewater analytical report from Trace Analytical Laboratories for GFL Environmental's Arbor Hills Landfill NPDES permit (GFL-NPDES 5092), dated December 15, 2025, analyzing a composite sample from Outfall 001A collected on December 3, 2025. The report presents results for metals, semi-volatile organic compounds, pesticides/PCBs, and wet chemistry parameters, with most analytes either not detected or below reporting limits.
Key data point: Composite wastewater sample from Outfall 001A collected Dec 3, 2025; most metals and organic analytes not detected; nickel measured at 9.2 ug/L (above RDL of 5.0 ug/L); total suspended solids <10 mg/L.
2026-01-08 · Arbor Hills Remediation Area · evidence · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
Trace Analytical Laboratories analyzed wastewater samples from Outfall-001A at the Arbor Hills Landfill (NPDES permit 5092) collected December 4, 2025. Results show all volatile organic compounds (VOCs) below detection limits, ammonia at 0.053 mg/L, total suspended solids below 10 mg/L, BOD below 2.0 mg/L, phenolics below 0.010 mg/L, and cyanide at 2.1 µg/L. Quality control procedures were applied and some analytes are noted as estimated due to method control issues.
Key data point: All VOCs <1.0 µg/L; ammonia 0.053 mg/L; cyanide 2.1 µg/L; all results below detection or within normal parameters for NPDES compliance, Outfall-001A, December 4, 2025.
2026-01-08 · Arbor Hills Remediation Area · evidence · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
GFL Environmental submitted a laboratory analysis report from Pace Analytical Services dated December 19, 2025, testing water samples collected from Outfall 001A at the Arbor Hills Landfill on December 4, 2025. The analysis measured mercury levels using EPA Method 1631E (low-level mercury); the primary sample detected 0.710 ng/L, the duplicate detected 0.708 ng/L, and the field blank showed no detection.
Key data point: Mercury detected at 0.710 ng/L in Outfall 001A water sample, collected 2025-12-04, above reporting limit of 0.50 ng/L.
2026-01-08 · Arbor Hills Remediation Area · evidence · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a December 2025 Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area treatment pond discharge (Permit MI0045713 v6.0). The report documents daily and monthly measurements of flow, suspended solids, biochemical oxygen demand, ammonia nitrogen, phosphorus, cyanide, mercury, PFOS/PFBS/PFOA, temperature, pH, and dissolved oxygen. Most measurements show compliance with permit limits, with many days marked as no discharge (*F) mid-to-late December.
Key data point: Treatment pond temperature ranged 39.8°F–40.1°F (12/2–12/5/2025); all sampled parameters (TSS, CBOD, ammonia, mercury, PFAS) were within or below permit limits.
2026-01-08 · Arbor Hills Remediation Area · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
EGLE formally requests that GFL Environmental submit PFAS sample results collected at or near the Arbor Hills stormwater outfall to the unnamed tributary to Johnson Drain by February 6, 2026. GFL's District Manager acknowledges receipt of the request on January 8, 2026.
Key data point: EGLE formal PFAS results submission deadline: February 6, 2026 for samples at/near Arbor Hills stormwater outfall to Johnson Drain tributary.
2026-01-08 · Arbor Hills Remediation Area · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
Arbor Hills Remediation Area (Permit MI0045713) submitted certification of completion for additional monitoring requirements on January 8, 2026, with three attached laboratory reports from December 2025. The submitter certifies that all required parameters were monitored in accordance with permit conditions and using acceptable quantification levels and analytical methods.
Key data point: No specific factual measurements or readings provided; this is a procedural certification and submission of laboratory reports without disclosed data.
2026-01-05 · Arbor Hills Landfill · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
Arbor Hills Landfill, Inc. requests decommissioning of 20 horizontal gas-collection wells and collectors, arguing they are no longer needed because nearby waste has been buried deeper, permanent gas-extraction infrastructure is operational, and recent gas data show minimal methane and high oxygen levels at these locations. The facility supports the request with one year of monthly monitoring data (January–December 2025) for each well.
Key data point: AH4ETGW1 reached 96.3F on 8/7/2025 and 87F–90.5F on multiple dates in 2025; no reading meets or exceeds the urgent threshold of 145F or the measured basis for Consent Judgment violation.
2026-01-05 · Arbor Hills Landfill · procedural · Source: Ypsilanti Community Utilities Authority (YCUA)
2025-12-22 · Arbor Hills Landfill · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
Arbor Hills Landfill, Inc. requests permission from EGLE to decommission 20 horizontal gas collection wells and gas extraction probes. The facility argues these wells are no longer needed because waste has been buried over them, temporary covers have been replaced, or newer vertical gas extraction infrastructure has been installed. Attachment 1 contains one year of gas extraction monitoring data (January–December 2025) for each well, showing temperature, methane, CO2, and oxygen readings.
Key data point: One year of gas monitoring data for 20 wells requested for decommission; temperatures range from 15.9°F to 110°F (AHEWHW29 at 85.5°F on 6/17/2025, AHWWHW19 at 110°F on 9/12/2025); all readings are measured values, not permitted limits.
2025-12-16 · Arbor Hills Remediation Area · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
GFL submitted a certification on December 16, 2025, stating that all Additional Monitoring Requirements under Permit MI0045713 for Arbor Hills Remediation Area have been monitored in compliance with permit conditions. The certification covers sampling conducted December 4–5, 2025, though the analytical laboratory report had not yet been received at the time of filing.
Key data point: Certification of completion of Additional Monitoring Requirements under Permit MI0045713, samples collected December 4–5, 2025; analytical report not yet received as of December 16, 2025.
2025-12-15 · Arbor Hills Remediation Area · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
EGLE's Materials Management Division approved the construction certification for Cell 6C at Arbor Hills Landfill on December 12, 2025, allowing waste placement to begin. The approval was issued after review of the October 10, 2025 Cell 6C Construction Documentation Report against Part 115 solid waste management rules and approved construction plans.
Key data point: Cell 6C construction approval issued December 12, 2025; waste placement authorized to commence.
2025-12-11 · Arbor Hills Remediation Area · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a routine Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area covering November 2025. The document shows a "No Discharge" status for the treatment pond, meaning no actual effluent measurements were recorded for the reporting period. The DMR lists permit limits and sampling requirements for flow, suspended solids, biochemical oxygen demand, ammonia nitrogen, phosphorus, cyanide, mercury, PFOS/PFBS/PFOA, temperature, pH, dissolved oxygen, and visual observations.
Key data point: No actual discharge or measurements reported; treatment pond had no discharge during November 2025.
2025-12-11 · Arbor Hills Landfill · procedural · notable
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
EGLE's Air Quality Division approved a 120-day extension (until April 4, 2026) for Arbor Hills Landfill to complete corrective actions in Cell 5C, after the site reported frequent perimeter monitor methane alarms exceeding 40 ppm starting December 2, 2025. The root cause was identified as reduced vacuum in an active landfill cell, requiring installation of new header and lateral vacuum lines.
Key data point: Perimeter monitors alarmed at >40 ppm CH4 starting December 2, 2025; reduced vacuum identified in Cell 5C; 120-day corrective action extension approved until April 4, 2026.
2025-12-10 · Arbor Hills Landfill · evidence · notable
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
GFL Environmental responds to EGLE's information request regarding a December 5th permit extension request, providing wellhead data for wells with reduced vacuum and results from a December 3rd non-routine SEM inspection. The inspection identified low concentrations of methane (none exceeding 500 ppm) in a defined area of interest, which were remediated upon discovery, and GFL indicates it has a contractor ready to begin gas-collection-system upgrades pending approval.
Key data point: Non-routine SEM inspection (12/3/2025) found low CH4 concentrations, none higher than 500 ppm, in area of interest; remediated upon discovery.
2025-12-08 · Arbor Hills Landfill · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This document is a construction record drawing showing the as-built site plan for Arbor Hills Landfill (N2688) as of December 2025. It depicts the layout of multiple disposal cells (1A through 6C), including closed sections from 1988–2008, active cells, overlay cells, and future expansion areas totaling at least 9.3 acres of new or planned capacity.
Key data point: No specific factual readings or measurements provided; document is a site schematic showing cell locations and construction phases only.
2025-12-08 · Arbor Hills Landfill, Inc. · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This document is an nForm filing dated December 8, 2025, presenting an October 2025 asbestos placement record for Arbor Hills Landfill. The document lists calendar dates throughout October but contains no quantitative measurements, compliance deadlines, or substantive narrative detail about the asbestos placement activity.
Key data point: Document states 'October 2025 asbestos placement' but provides no specific quantity, tonnage, well location, or operational detail.
2025-12-08 · Arbor Hills Landfill, Inc. · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
Arbor Hills Landfill, Inc. filed a Notification of Intent to Renovate on 12/8/2025 regarding asbestos removal at portions of the landfill. The project involves removal of approximately 5,000 square feet of RACM (Regulated Asbestos Containing Material) with work scheduled from 02/01/2025 to 02/28/2026, operating M-Fri 6a-8p and Sat 7a-5p. An asbestos survey was conducted on 12/16/2024 prior to the renovation work.
Key data point: 5,000 sq. ft. of RACM to be removed; asbestos removal work scheduled 02/01/2025 to 02/28/2026 at portions of Arbor Hills Landfill.
2025-12-08 · Arbor Hills Landfill, Inc. · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
GFL (Arbor Hills Landfill, Inc) submitted a revised asbestos notification to EGLE and LEO for planned renovation and asbestos removal at the landfill facility. The work involves removal of approximately 5,000 square feet of regulated asbestos-containing material (RACM) related to gas construction, scheduled from February 1, 2025 through February 28, 2026, using a drill rig method with water spray and leak-tight container controls.
Key data point: 5,000 sq. ft. of RACM (gas construction) to be removed via drill rig, February 1, 2025 – February 28, 2026, at Arbor Hills Landfill, Northville, MI.
2025-12-05 · Arbor Hills Landfill · procedural · notable
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
Green for Life Environmental (GFL) operating Arbor Hills Landfill requested a 120-day extension (until April 4, 2025) from the Michigan Department of Environment, Great Lakes, and Energy to complete corrective actions for perimeter monitor alarms exceeding 40 ppm for methane (CH4). The company identified reduced vacuum in the active landfill Cell 5C as the source and needs time to design and install new vacuum lines.
Key data point: Perimeter monitors alarmed at >40 ppm CH4; reduced vacuum identified in Cell 5C; 120-day extension requested under Consent Judgment 2020-0593-CE.
2025-11-21 · Arbor Hills Landfill · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
Arbor Hills Landfill submitted a Consent Judgment-mandated action plan in response to a third-party leachate minimization review conducted by Tetra Tech in October 2025. The plan addresses recommendations for stormwater control improvements, including repairs to erosion features, vegetative reseeding, and protective measures for downchutes. Overall, the facility's cover systems and stormwater diversion features were found to be in good condition with no water ponding observed in operational areas.
Key data point: No specific quantitative environmental readings provided. The document reports that leachate generation remains relatively constant and independent of weather conditions, with no correlation observed between rain events and leachate increases.
2025-11-19 · Arbor Hills Remediation Area · procedural · notable
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
EGLE's Water Resources Division formally requests that Green for Life Environmental submit all PFAS sample results related to Arbor Hills Landfill's NPDES stormwater discharge permit. The facility had been contacted in August 2025 but failed to respond; results must now be submitted by February 6, 2026.
Key data point: PFAS sample results requested but not previously submitted to EGLE; initial phone contact (August 11, 2025) went unanswered; deadline for submission: February 6, 2026.
2025-11-12 · Arbor Hills Landfill · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
Green for Life Environmental submitted a status update to EGLE on corrective actions for perimeter monitor alarms at Arbor Hills Landfill. The company reports completion on October 16, 2025, of installation of approximately 600 feet of horizontal vacuum piping along the northeast perimeter of Cell 6C, connected as three new wells (AHWCH6C1, AHWCH6C2, AHWCH6C3).
Key data point: 600 feet of 6-inch perforated horizontal vacuum piping installed along Cell 6C northeast perimeter, commissioned as wells AHWCH6C1, AHWCH6C2, AHWCH6C3, completed October 16, 2025.
2025-11-10 · Arbor Hills Remediation Area · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a Discharge Monitoring Report (DMR) for Arbor Hills Remediation Area covering October 2025, submitted by GFL Environmental under permit MI0045713 v6.0. The report shows 'No Discharge' for all monitored limit sets, meaning the treatment pond had no active discharge during the reporting period. The document lists permitted limits and monitoring requirements for parameters including suspended solids, biochemical oxygen demand, ammonia nitrogen, phosphorus, cyanide, mercury, PFOS/PFBS/PFOA, temperature, pH, and dissolved oxygen.
Key data point: No factual discharge readings are provided; the document states 'No Discharge: Y' for all monitoring sets, indicating no measurable effluent left the treatment pond during October 2025.
2025-11-06 · Arbor Hills Energy · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
Arbor Hills Energy, LLC submitted an Air Quality Test Report on November 6, 2025, documenting stack emissions testing conducted August 26–28, 2025. The submission includes test protocols, an approval letter, and a formal test report, with several administrative corrections requested and approved by EGLE reviewers regarding methods formatting and turbine load reporting.
Key data point: No specific quantitative emission readings or measured pollutant concentrations are disclosed in this submission form itself; the actual test results are contained in the attached 'Arbor Hills Energy Test Report_10-23-25.pdf,' which is referenced but not fully transcribed.
2025-11-06 · Arbor Hills Energy · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
Arbor Hills Energy, LLC submitted an air quality stack test report for emission units (turbines) conducted August 26–28, 2025, by Impact Compliance and Testing. The submission underwent multiple corrections and revisions to comply with state reporting format requirements before final approval on November 6, 2025.
Key data point: No specific measured emission or pollutant readings are disclosed in this procedural submittal; the actual test data resides in the attached test report (Arbor Hills Energy Test Report_10-23-25.pdf), which is not provided in this document.
2025-11-06 · Arbor Hills Energy · evidence · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is an nForm emissions compliance document filed November 6, 2025, containing nitrogen oxides (NO2) and sulfur dioxide (SO2) test results from four gas turbine units (Typhoon Turbines 1–3 and Solar Turbine GT4) at what appears to be a waste-to-energy or landfill gas facility. The measured pollutant concentrations are reported against federal and Michigan air pollution control standards.
Key data point: Nitrogen oxides measured at Typhoon Turbines 1–3 in the range of 190–240 ppmvd@15%O2, with three-run averages ranging from 28.1 to 38.6 ppmvd@15%O2; sulfur dioxide measured at 0–0.41 lb/hr and 0–0.15 lb/mmbtu across regulated units.
2025-11-05 · Arbor Hills Energy · evidence · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This nForm document reports nitrogen oxides (NO2) and sulfur dioxide emissions test results from four gas turbines (Typhoon GT1-GT3 and Solar Turbine GT4) at an industrial facility, measured using EPA-approved methods. All reported NO2 concentrations range from approximately 28 to 39 ppmvd@15% O2, and sulfur dioxide emissions are reported at 0.1–0.41 lb/hr or 0.15 lb/mmbtu, well below permit limits.
Key data point: NO2 emissions measured across four turbines: 28–39 ppmvd@15%O2 (average per run); SO2 emissions ≤0.41 lb/hr; all compliance tests conducted per 40 CFR Part 60 Subparts GG and KKKK.
2025-11-05 · Arbor Hills Energy · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
Arbor Hills Energy, LLC submitted an air quality stack test report for compliance testing conducted August 26–28, 2025. The submission covers emissions testing from turbine units and includes test protocols, approval letters, and the final test report filed in Michigan's environmental portal.
Key data point: No specific emission readings or pollutant concentrations are disclosed in this cover sheet; detailed results are in the attached test report PDF (Arbor Hills Energy Test Report_10-23-25.pdf), which is not fully provided here.
2025-11 · procedural · Source: EGLE Water Resources Division
2025-10-30 · Arbor Hills Landfill · evidence · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is the Q3 2025 Consent Judgment quarterly report from Arbor Hills Landfill, filed October 30, 2025, documenting vertical gas collection (VGC) well liquid monitoring and management across the landfill. The report includes detailed tables of well conditions, screen submersion percentages, liquid levels, pump performance data, and recommendations for well replacements or corrective actions.
Key data point: Document contains no measured temperature readings at or above 145F in the excerpted pages; extensive operational monitoring data on well liquid levels, screen submersion, pump rates (in gallons/day), and obstruction assessments—but no temperature exceedances, CO spikes, or smoldering indicators visible in the disclosed sections.
2025-10-30 · Arbor Hills Landfill · evidence · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This Q3 2025 Liquid Level Report for Arbor Hills East Vertical Gas Wells is a technical tabulation of subsurface monitoring data across dozens of wells over a multi-year period. It documents depth-to-liquid measurements, leachate levels, screen submersion percentages, and sediment obstruction in the landfill's gas extraction infrastructure. The data reflects routine operational monitoring with no temperature, carbon monoxide, or hazardous substance measurements included.
Key data point: No specific factual claims or quantitative readings related to temperature, air quality, violations, or regulatory limits are present in this document. It is a spreadsheet of water/leachate levels only.
2025-10-30 · Arbor Hills Landfill · evidence · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a Q3 2025 Well Liquid Monitoring and Management Report for Arbor Hills Landfill (East and West cells), detailing the operational status of gas extraction wells with problematic liquid levels, screen submersion, and obstruction issues. The tables document well-by-well conditions including constructed depths, sounded depths, liquid levels, screen submersion percentages, sediment obstruction, and pump daily averages across multiple quarters.
Key data point: No specific measured temperature or CO readings provided in this excerpt. Document consists of well liquid level and obstruction management data; temperature and gas composition data referenced as separate reports (Wells of Interest Status Reports).
2025-10-29 · Arbor Hills Energy · evidence · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a compliance testing report (nForm) dated 2025-10-29 documenting nitrogen oxide (NO2) and sulfur dioxide (SO2) emissions from four gas turbines (Typhoon units 1–3 and Solar Turbine GT4) at what appears to be an energy-recovery facility, tested under EPA Method 7E and ASTM standards. All measured pollutant concentrations are reported alongside their respective permitted limits and three-run averages.
Key data point: NO2 concentrations measured across four turbines ranging from 28.1 to 38.6 ppmvd@15%O2vd; all results within permitted limits (190–240 ppmvd@15%O2vd). SO2 measured at 0 to 0.1 lb/hr against permitted limits of 0.15–0.5 lb/hr.
2025-10-27 · Arbor Hills Energy · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
Arbor Hills Energy LLC submitted an air quality stack test report covering August 26–28, 2025, conducted by Impact Compliance and Testing. The submission includes test protocols and results for gas turbine emission units, though a CORRECTION REQUEST was issued on 10/27/2025 requiring that results for all turbines at each of their four loads be reported.
Key data point: No specific quantitative emissions readings or limits are stated in this submission cover sheet; the actual test report (Arbor Hills Energy Test Report_10-23-25.pdf) would contain those figures.
2025-10-23 · Arbor Hills Energy · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This document is a Stack Test Protocol for compliance testing of a Solar Taurus gas-fired turbine (EUTURBINE4, 5.2 MW) at the Arbor Hills Energy facility, scheduled for August 5, 2025. The protocol outlines standard EPA methods for measuring NOx and SO2 emissions from the landfill-gas-fueled turbine to verify compliance with permit limits. This is a procedural planning document, not a report of actual test results or measured emissions data.
Key data point: No measured data present. This is a pre-test protocol document describing planned testing procedures and estimated conditions (turbine exhaust temperature estimated at 930°F, O2 at 15.7%).
2025-10-23 · Arbor Hills Energy · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
EGLE's Air Quality Division approved Arbor Hills Energy's emissions testing protocol on July 22, 2025, requiring testing of four gas turbines (EUTURBINE1–4) under 40 CFR Subparts KKKK and GG. Testing is scheduled to begin August 5, 2025, and must measure nitrogen oxides and sulfur dioxide against specified pollutant limits.
Key data point: No measured readings provided. Document is a protocol approval letter setting permitted limits (e.g., NO2 at 74 ppmvd@15%O2 for EUTURBINE4, 0.5 lb/hr SO2 for EUTURBINE1–3) ahead of August 5, 2025 testing.
2025-10-23 · Arbor Hills Energy · evidence · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
Arbor Hills Energy conducted a stack compliance test of turbine emission units (three EGT Typhoon turbines and one Solar Taurus turbine) on August 26–28, 2025, to measure NOx, O2, and SO2 emissions. All measured air pollutant concentrations and emission rates were reported as less than the allowable limits specified in Permit to Install (PTI) No. 68-23A v2.0 and Michigan's Renewable Operating Permit (MI-ROP-N2688-2011a).
Key data point: All turbine NOx and SO2 emissions measured below permitted limits; no exceedances or violations documented in August 2025 testing.
2025-10-23 · Arbor Hills Energy · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a Stack Test Protocol filed by Impact Compliance & Testing, Inc. on behalf of Arbor Hills Energy, LLC for emissions testing of three EGT-Typhoon landfill-gas-fired turbines at the Arbor Hills Landfill (SRN N2688) in Northville, Michigan. The protocol outlines the procedures for measuring NOx and SO2 emissions from the turbines to demonstrate compliance with 40 CFR Part 60, Subpart GG, with testing proposed for February 18, 2025 and revised to August 5, 2025.
Key data point: Testing scheduled for three turbines using 36 total runs (12 per turbine across 4 different temperature setpoints); NOx compliance measured against 40 CFR 60.332(a)(2) Subpart GG; SO2 limit 0.5 lb/hr; estimated flue gas temperature 500°F with 15.9% oxygen.
2025-10-23 · Arbor Hills Energy · evidence · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This nForm Document contains EPA Method 7E and ASTM emissions test results for four gas turbines (three Typhoon units and one Solar Turbine GT4) at what appears to be an industrial facility. The document reports nitrogen oxides (NO2) and sulfur dioxide (SO2) measurements across multiple test runs, all subject to 40 CFR Part 60 regulations and Michigan Air Pollution Control Rules.
Key data point: No specific facility location or date is provided in the document header or data tables; the measurements appear to be compliance test results but lack clear identification of the testing site or date of measurement.
2025-10-22 · Arbor Hills Energy · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
Arbor Hills Energy, LLC submitted a renewal application for its air permit (ROP0000656) on October 22, 2025. The submission includes standard permit information, contact details for the Vice President and Senior Vice President of Operations, and the required ROP Application form. This is a procedural filing to renew the facility's air operating permit.
Key data point: No specific factual readings or claims are stated in this document; it is a submission cover sheet with administrative contact information and permit reference numbers only.
2025-10-22 · Arbor Hills Energy · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
Advanced Disposal submitted a 209-page Renewable Operating Permit (ROP) renewal application for Arbor Hills Landfill (SRN N2688) on 2025-10-22, covering three permit sections for a municipal solid waste landfill >50Mg NMOC. The application includes certification of compliance with all applicable requirements, emission unit inventories, and proposed permit modifications.
Key data point: No specific measured readings, violations, or changes are disclosed; the applicant certifies current compliance with all applicable requirements and proposes no additions, changes, or deletions to emission limits or material limits in any of the three sections.
2025-10-21 · Arbor Hills Remediation Area · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
GFL submitted a PFAS Non-POTW Effluent Monitoring Report for Arbor Hills (MI0045713) on 10/21/2025 stating there was no discharge during the reporting period and declining to sample for PFAS.
Key data point: No discharge reported during this period; PFAS sampling not conducted.
2025-10-17 · Arbor Hills Landfill · evidence · Source: Arbor Hills Landfill, Inc. to EGLE (annual Part 115 capacity form; certified 10/17/2025)
2025-10-15 · Arbor Hills Landfill · evidence · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
Arbor Hills Landfill submitted its Third Quarter 2025 Perimeter Monitor Root Cause Analysis Investigation Report to EGLE on October 15, 2025, pursuant to Consent Judgment No. 2020-0593-CE. The report documents multiple perimeter monitoring alarm investigations conducted in July 2025 and includes attachment logs and root-cause analyses. All investigated incidents concluded with findings of no obvious deficiencies in leachate collection, compost facilities, or cap/cover materials.
Key data point: Perimeter monitors triggered action-level alarms at 40 ppm methane or 7 ppm H2S; multiple investigations conducted July 6–30, 2025; all concluded with no deficiencies found.
2025-10-06 · Arbor Hills Landfill · evidence · urgent
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
EGLE conducted a September 25, 2025 Surface Emission Monitoring (SEM) inspection of Arbor Hills Landfill and identified 24 locations with methane concentrations exceeding 500 ppm above background. The inspection found widespread cover integrity issues, including erosion rills, bare ground, and surface penetrations, as well as substantial impairment of gas collection wells due to excess liquid levels and damaged infrastructure. The facility is experiencing ongoing fugitive methane and hydrogen sulfide emissions linked to perimeter air monitor exceedances and approximately 50–100 monthly odor complaints.
Key data point: 24 SEM hits at ≥500 ppm methane above background; 27 wells with <10" water column vacuum; 13 wells fully submerged; 44 additional wells 75–95% screen submerged; one probe (AHTGP18D) at 1458% LEL offsite; 27 wells with H₂S >1000 ppm; monthly methane action level exceedances (>40 ppm over 15 min) at perimeter monitors since May 2022.
2025-10-03 · Arbor Hills Remediation Area · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area covering September 2025, filed under permit MI0045713 v6.0. The report documents monitoring of treatment pond discharge (Final Effluent) for multiple parameters including suspended solids, biochemical oxygen demand, ammonia, phosphorus, cyanide, mercury, PFOS/PFBS/PFOA, temperature, pH, and dissolved oxygen. The document shows "No Discharge: Y" across all monitoring sets, indicating no discharge occurred during the reporting period.
Key data point: No discharge reported for September 2025; all monitoring parameters for Final Effluent (1) marked with "No Discharge: Y" across all four reporting sets.
2025-09-17 · Arbor Hills Landfill · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
Arbor Hills Landfill submitted to EGLE an action plan in response to Consent Judgment No. 2020-0593-CE, addressing recommendations from a third-party (Tetra Tech) leachate minimization review conducted in August 2025. The action plan details maintenance of drainage structures, erosion repair, vegetation seeding, and stormwater control measures to be completed by Q4 2025 and Q1 2026.
Key data point: Tetra Tech third-party evaluation field work conducted August 26, 2025; final report 'Report on Q4 2025 Leachate Minimization Review' submitted August 29, 2025, recommending berm maintenance, downchute protection, erosion rill repair, and vegetation evaluation.
2025-09-17 · Arbor Hills Landfill · procedural · notable
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
EGLE's Air Quality Division approved a 60-day extension (until November 10, 2025) for Arbor Hills Landfill to complete corrective actions for perimeter monitor methane exceedances at monitors MS-2 through MS-6. The facility detected frequent alarms greater than 40 ppm CH4 and identified the need to install horizontal gas collection lines north of Cell 6C following non-routine surface emission monitoring.
Key data point: Perimeter monitors MS-2, MS-3, MS-4, MS-5, MS-6 recorded frequent methane alarms >40 ppm starting September 8, 2025; root cause identified as gas emissions north of Cell 6C requiring new collection infrastructure.
2025-09-17 · Arbor Hills Landfill · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
EGLE's Air Quality Division transmits a Request for Extension letter regarding corrective actions tied to the Perimeter Monitor Action at Arbor Hills Landfill (SRN N2688). The document is a transmittal by the state agency, dated September 17, 2025.
Key data point: No specific factual readings or dates provided in the transmittal itself; the actual Request for Extension and corrective action details appear to be in an attachment not included in this excerpt.