2026-02-05 · 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 Q4 2022 Vertical Gas Collection (VGC) Well Liquid Monitoring and Management Report for Arbor Hills Landfill, prepared by SCS Engineers in compliance with Consent Judgment No. 2020-0593-CE. The report documents liquid level monitoring, gas composition measurements, and pump performance across dozens of gas extraction wells in both the West (open) and East (closed) sections of the landfill, with recommendations for well replacements and maintenance actions.
Key data point: No specific measured temperature, CO, or oxygen readings are provided in the excerpted pages. Document contains liquid level depths, screen submersion percentages, and pump operational data, but no gas composition or thermal exceedance data in the shown sections.
2026-02-05 · 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.
This is the 2022 Q2 Consent Judgment quarterly report for Arbor Hills Landfill, submitted by GFL Environmental to EGLE in July 2022. The document contains detailed tables tracking gas well liquid levels, pump operations, screen submersion, and corrective actions across multiple wells at the East and West landfill sections. It documents widespread maintenance issues including stuck pumps, obstructed wells, and wells recommended for replacement or abandonment.
Key data point: No single temperature or CO reading provided; document focuses on leachate/liquid level management, pump status, and well obstruction data rather than subsurface temperature or combustion gas monitoring.
2026-02-05 · 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.
Weaver Consultants Group performed a third-party engineering evaluation of Arbor Hills Landfill's leachate minimization systems in Q3 2022, as required by the Consent Judgment. The inspection found cover systems in generally good condition with adequate stormwater diversion; minor repairs from Q2 were completed, and several recommendations for ongoing improvements (seeding, berm construction, ditch completion) were made.
Key data point: No quantitative measurements of leachate, water quality, or contaminant levels reported; document is qualitative site inspection with recommendations for stormwater management.
2026-02-05 · 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 Second Quarter 2024 Perimeter Monitor Root Cause Analysis Investigation Report to EGLE on July 11, 2024, documenting procedures and findings for methane and hydrogen sulfide alarm investigations conducted April–May 2024 under Consent Judgment No. 2020-0593-CE. The report includes multiple root cause analyses showing no significant deficiencies found in cap, conduit, leachate systems, or compost facility operations following perimeter monitor action-level alarms.
Key data point: No specific measured temperature, CO, or gas readings stated in excerpted pages; document references action-level alarm thresholds of 40 ppm methane and 7 ppm H2S but reports no observed exceedances or defects identified during April–May 2024 investigations.
2026-02-05 · 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.
This is the 2023 Third Quarter Consent Judgment status report filed by Arbor Hills Landfill, Inc. with the Michigan Department of Environment, Great Lakes, and Energy, covering vertical gas well operations, liquid level monitoring, and gas collection system improvements. The report documents ongoing infrastructure improvements to the landfill's gas extraction and monitoring systems as required under Consent Judgment No. 2020-0593-CE.
Key data point: Document is a procedural quarterly compliance filing with no specific measured temperature, CO, or other quantitative readings presented; contains only descriptions of well monitoring protocols and corrective actions.
2026-02-05 · 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.
This is the Q4 2023 Vertical Gas Collection (VGC) Well Liquid Monitoring and Management Report submitted by Arbor Hills Landfill to the Michigan Department of Environment, Great Lakes, and Energy (EGLE) in compliance with Consent Judgment No. 2020-0593-CE. The report documents liquid level monitoring, gas composition data, and operational status across multiple gas extraction wells at both the West and East sections of the landfill, with identified wells requiring corrective actions including pump maintenance and well replacement.
Key data point: Multiple wells across Arbor Hills West and East show documented operational issues including obstructions, stuck pumps, and screens exceeding 50% submerged levels; 9 wells in West section recommended for replacement by May 29, 2024; pump maintenance and evaluations ongoing at 12 wells in West section.
2026-02-05 · 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.
Tetra Tech's Q2 2024 leachate minimization review of Arbor Hills Landfill evaluates stormwater diversion, cover systems, and grading compliance with the 2022 Consent Judgment. The inspection on May 15, 2024 found cover systems in generally good condition with adequate stormwater diversion, though several areas require additional seeding and vegetative cover to prevent erosion. The report recommends minor improvements to downchutes and vegetation establishment to maintain long-term runoff performance.
Key data point: No quantitative leachate, water quality, or air quality measurements provided; document is an engineering assessment of cover condition and drainage adequacy per Consent Judgment Section 5.2(C)2.
2026-02-05 · 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.
This is the Q3 2024 Consent Judgment quarterly report filed by Arbor Hills Landfill with EGLE, submitting required attachments covering leachate summaries, gas-extraction data, and analytical results for July–September 2024. The document includes leachate volume records from multiple collection points and laboratory analysis of leachate samples showing ammonia, TSS, COD, and TOC levels.
Key data point: No specific temperature, CO, or violation readings are visible in the excerpted pages. The document references Consent Judgment No. 2020-0593-CE Section 6.2 compliance but shows only leachate volumes and analytical parameters (ammonia, TSS, COD, TOC) without exceedance flags.
2026-02-05 · 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.
This is the 2024 Supplemental Environmental Projects (SEP) annual report submitted by Arbor Hills Landfill to EGLE under Consent Judgment No. 2020-0593-CE, documenting compliance with three required projects: perimeter emissions monitoring (6 Scentroid stations measuring H2S and methane), a household hazardous waste facility now operational since October 2023, and vegetative buffers totaling 132 planted trees. The report includes expenditure summaries ($547,000 for monitoring, $261,000 for HHW facility operations in 2024) and certifications of project implementation.
Key data point: Perimeter emissions monitoring system installed 2022 with 6 Scentroid CTair stations on east side west of Napier Road, monitoring H2S and methane; total cumulative spend to date over $1.3 million as of 2024 annual report.
2026-02-05 · 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.
This document is a site plan for Arbor Hills Landfill showing cell layout and waste placement areas, filed on February 5, 2026. The plan displays landfill cell designations (e.g., 6G, 3FM, 4x8, 2A) across the property. No regulatory violations, measurements, or substantive operational data are contained in this drawing.
Key data point: No specific factual readings or regulatory claims present; this is a structural site layout document.
2026-02-05 · 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.
This Gas Extraction Report from Arbor Hills Landfill documents temperature, gas composition, and carbon monoxide readings from multiple Wells of Interest (WOI) during July–September 2023. The report includes detailed well-by-well extraction data, pressure readings, flow rates, and monthly CO concentrations measured via Draeger tubes across the active gas extraction network. Multiple wells were abandoned and replaced during this period, with ongoing monitoring of leachate levels and pump maintenance.
Key data point: Temperature readings from multiple WOI wells ranged from 84.6°F (AHC4106A, August 2023) to 129.4°F (AH148AR3, August 2023); all measured temperatures remained below the 131°F WOI threshold. Multiple CO measurements recorded in August 2023 ranged from 0 to 50 ppm, with July and September readings mostly at or near 0 ppm.
2026-02-05 · 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.
GFL submitted its Q1 2024 HOV (Higher Operating Value) WOI (Wells of Interest) Quarterly Status Report to EGLE on April 15, 2024, documenting landfill gas monitoring data, well maintenance, and subsurface oxidation management across 16+ wells operating under elevated-temperature waivers. The report includes measured temperature readings from January through March 2024, well installation/replacement activities, and gas quality data, along with cumulative construction activities and planned Q2 upgrades.
Key data point: Well AHWW0279 measured 147.1°F on 3/27/2024 (2°F above the 145°F urgent threshold); Wells AHWW0313 and AHWW0312R measured 151°F+ in early 2024 (approved HOV waiver ceiling 155°F); multiple wells show sustained temperatures in the 105–152°F range under active HOV monitoring per Consent Judgment CJ No. 2020-0593-CE.
2026-02-05 · 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 Q4 2022 Liquid Level Report for Arbor Hills East Vertical Gas Wells, documenting leachate depths, screen submergence percentages, and sediment levels across multiple monitoring wells on a 76-page table. The report provides routine operational data on landfill leachate management and well conditions at the Arbor Hills facility (SRN N2688).
Key data point: No specific factual claim or measured violation stated; this is a data table showing leachate levels and well conditions as of Q4 2022, with no temperature, CO, or exceedance readings provided.
2026-02-05 · 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 Q2 2023 Vertical Gas Collection (VGC) Well Liquid Monitoring and Management Report for Arbor Hills Landfill, submitted under Consent Judgment No. 2020-0593-CE. The report documents liquid levels, gas composition, flow rates, and pump functionality across the landfill's gas extraction wells, identifying wells requiring corrective actions including pump maintenance, well replacement, or further evaluation.
Key data point: No specific measured temperature reading above 145F is stated in the provided pages. The document focuses on liquid level, screen submersion percentages, pump operation, and well obstruction—not thermal monitoring. Wells of Interest (WOI) are referenced but temperature data tables are not included in the excerpted sections.
2026-02-05 · 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's Third Quarter 2024 Perimeter Monitor Root Cause Analysis Investigation Report documents the site's response to perimeter air monitoring alarm events (methane ≥40 ppm or H₂S ≥7 ppm) during July and August 2024. The report details systematic investigation procedures including back-trajectory analysis, on-site visual inspection, and corrective actions, with findings of no significant deficiencies in cap integrity, conduit pathways, compost handling, or leachate collection systems.
Key data point: No specific measured readings of methane, H₂S, or other air-quality parameters are disclosed in the keyword-matched pages; the document is a procedural alarm-response template applied to multiple weeks in Q3 2024.
2026-02-05 · 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 submitted its Q2 2024 Perimeter Monitor Root Cause Analysis Investigation Report to EGLE under Consent Judgment No. 2020-0593-CE, documenting responses to perimeter air-quality alarm events triggered in April and May 2024. The report details the site's systematic procedure for investigating methane (CH4) and hydrogen sulfide (H2S) exceedances at the 40 ppm and 7 ppm action-level thresholds, respectively. All investigations conducted during April–May 2024 found no cover concerns, no conduit issues, and no operational deficiencies in the leachate collection or compost facilities.
Key data point: Perimeter monitors triggered alarm-level events for CH4 (≥40 ppm) or H2S (≥7 ppm) on multiple dates in April–May 2024; root-cause investigations conducted April 4–7, April 9–10, May 1, May 10, and May 14, 2024 all reported 'no concerns' in cover, conduits, leachate systems, and compost facility.
2026-02-05 · 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 submitted its Q3 2023 Perimeter Monitor Root Cause Analysis Investigation Report to EGLE on October 15, 2023, documenting the protocol and findings for four perimeter monitor alarm events (July 18, 21, 27–28, and August 19, 2023). Each alarm involved methane detections at monitor MS-5, and investigations concluded with no identified deficiencies in gas collection systems, cap integrity, leachate facilities, or compost operations.
Key data point: Four perimeter monitor alarm events detected in Q3 2023 at MS-5 (July 18, July 21, July 27–28, August 19), each triggering root cause analysis per Consent Judgment 2020-0593-CE; no deficiencies identified.
2026-02-05 · 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 Q1 2024 Liquid Level Report for Arbor Hills East and West vertical gas wells, documenting leachate depths, screen submersion percentages, and well construction data across 73 pages. The document tracks routine quarterly monitoring of perforated well screens to assess groundwater and leachate levels in the gas extraction system. No temperature, carbon monoxide, or air-quality readings are present in the sampled pages.
Key data point: Document provides no single urgent factual claim; it is a routine hydrological monitoring dataset with liquid levels and screen submersion percentages at dozens of wells as of Q1 2024.
2026-02-05 · 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.
This is the 2022 second semi-annual Consent Judgment compliance report (CJ 2020-0593-CE) from Arbor Hills Landfill covering 3rd and 4th quarter 2022. It documents extensive Surface Emission Monitoring (SEM) exceedances across dozens of gas wells and penetrations, with corrective actions taken to address cover integrity, seal failures, and gas collection issues. Temperature readings at several Wells of Interest (WOI) are recorded alongside methane and oxygen levels.
Key data point: WOI Well WW-207R recorded 77°F; WOI Well WW-306R recorded 129°F (both from 4Q 2022 SEM table); WOI wells WW-290 and WW-297 noted 'poor gas quality at the time of the scan' in 3Q 2022.
2026-02-05 · 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 document is a formal action plan submitted by Arbor Hills Landfill to the Michigan Department of Environment, Great Lakes, and Energy in May 2023, pursuant to Consent Judgment No. 2020-0593-CE. It reports on a third-party engineering evaluation (conducted by Tetra Tech in March 2023) of the landfill's leachate minimization and stormwater control measures, detailing findings and recommended corrective actions for cover systems, vegetation, and drainage infrastructure. The action plan confirms completion of several maintenance tasks (stone check dams, diversion berms) and outlines a schedule for spring 2023 reseeding and repair work.
Key data point: Sparse vegetation observed on south, west, and north slopes during Q1 2023 inspection; recommended evaluation of vegetation coverage in late spring 2023 and reseeding to establish adequate cover.
2026-02-05 · 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.
This is a Wells of Interest (WOI) semi-annual gas-well status report for Arbor Hills Landfill, covering May-June 2023 wellhead temperature, carbon monoxide, and hydrogen readings at wells subject to HOV waivers under the 2019 EGLE approval. Well AHWW0313 was added to the WOI list effective June 13, 2023 after recording temperatures exceeding 131F, and subsequent readings through June 27, 2023 show temperatures as high as 148.6F, above the 145F NESHAP/MACT default limit. Several other wells (AHWW0301, AHWW0302) also show elevated temperatures in the 134-142F range, while CO and hydrogen readings at most wells remain low.
Key data point: AHWW0313 measured a wellhead temperature of 148.6F (exceeding the 145F MACT default limit), 6/27/2023
2026-02-05 · 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.
Green For Life Environmental (GFL) notifies the Michigan Department of Environment, Great Lakes, and Energy of a change in the distribution list for Arbor Hills Landfill under Consent Judgment No. 2020-0593-CE, replacing contact Tony Pelletier with Fernando Camargo as Area Landfill Director.
Key data point: No specific factual data or measurements provided; administrative notice only.
2026-02-05 · 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 submitted a Consent Judgment-mandated action plan (July 1, 2022) responding to a third-party leachate minimization engineering review conducted by Weaver Consultants Group in May 2022. The plan addresses stormwater control, cover system integrity, and erosion repairs, with completion timelines ranging from July to October 2022. The review found the landfill's cover and diversion systems generally in good condition but identified minor erosion areas, standing water in the northern perimeter ditch, geomembrane damage on the temporary cap, and depressions around gas wells requiring remediation.
Key data point: No specific temperature, CO, or water-quality readings provided. Document is a procedural compliance submission detailing engineering recommendations and proposed corrective actions under Consent Judgment No. 2020-0593-CE.
2026-02-05 · 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.
Tetra Tech's Q1 2024 leachate minimization review finds that Arbor Hills Landfill's grading, cover systems, and stormwater controls are generally in good condition and capable of diverting stormwater away from the operating area. The report documents ongoing final cover construction (19 acres of FML on south slope), repair of a damaged temporary cap area, and identifies minor improvements needed including seeding of sparse vegetation areas and erosion control measures. Settlement is minimal and not expected to cause grade reversal before the next quarterly survey.
Key data point: No quantitative leachate generation, water quality, or contamination readings provided; report is qualitative assessment of cover systems and drainage infrastructure.
2026-02-05 · 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.
This is the 2023 Supplemental Environmental Projects (SEP) Annual Report submitted by Arbor Hills Landfill, Inc. to the Michigan Department of Environment, Great Lakes, and Energy in compliance with Consent Judgment No. 2020-0593-CE. The report documents AHL's expenditures and progress on three required SEPs: perimeter emissions monitoring (H2S and methane), a household hazardous waste facility, and vegetative buffer plantings.
Key data point: No specific operational or safety measurements provided in report. Document is a compliance filing describing SEP project status and costs ($222,000 for perimeter monitoring operations in 2023, over $800,000 cumulative; HHW facility operational since October 3, 2023).
2026-02-05 · 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.
A 2023 Q1 Vertical Gas Collection (VGC) Well Monitoring and Management Report submitted to EGLE under Consent Judgment No. 2020-0593-CE. The report documents quarterly liquid level and gas monitoring at Arbor Hills Landfill, recommends well replacements and pump installations to meet the 50% open-screen performance threshold, and summarizes improvements made since the 2020 initial assessment.
Key data point: No single measured temperature, CO, or subsurface-oxidation reading provided in excerpt. Document is administrative compliance reporting on well screen submersion and pump functionality; the Temperature (Wells of Interest) data referenced in the Consent Judgment appear to be in a separate WOI report (Appendix D not shown in keyword-matched pages).
2026-02-05 · 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.
Arbor Hills Landfill responded to an October 10, 2023 violation notice for odor exceedances on 6-Mile Road and Napier Road by documenting a root-cause investigation into Cell 6A emissions. The facility implemented multiple remedial measures including clay cover, gas collection piping to leachate risers, and temporary vacuum systems, claiming to have eliminated the odor source by October 11, 2023.
Key data point: Odor violations verified on 6-Mile Road between Napier Road and Crestbrook Drive (Oct 5, 2023) and Napier Road at northeast corner (Oct 5–6, 2023) in violation of R299.4433(1)(c); Cell 6A perimeter monitors indicated higher than acceptable H2S concentration limits beginning early September 2023.
2026-02-05 · 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.
This Q2 2022 Vertical Gas Collection Well Liquid Monitoring and Management Report documents the status of gas extraction wells at Arbor Hills Landfill per Consent Judgment 2020-0593-CE. The report evaluates liquid levels, screen submersion, pump functionality, and identifies wells requiring corrective action including replacement, maintenance, and abandonment across the 210.5-acre AH West and 131-acre AH East sections.
Key data point: No measured temperature readings provided in this liquid and pump monitoring report; document focuses on well geometry, liquid levels, and pump performance rather than subsurface oxidation or thermal data.
2026-02-05 · 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.
Arbor Hills Landfill responded to an October 10, 2023 EGLE violation notice alleging odor exceedances on 6-Mile Road and Napier Road near the site in early October 2023. The facility reported detecting unusual odors from Cell 6A in early September, identified multiple source areas using H2S meters and drone scans, and implemented a series of remedial measures including clay cover, gas collection piping, and temporary vacuum lines to the leachate cleanout risers. The combined efforts were reported to have eliminated the odor source by mid-October, and the facility committed to enhanced monitoring and a large-scale gas collection project scheduled for completion by January 2024.
Key data point: Odor violations verified on 6-Mile Road and Napier Road, October 5–6, 2023; source traced to Cell 6A; remedial measures (clay, 200-ft gas collection pipe, leachate riser vacuum lines) implemented September–October 2023 and reported mitigated by October 11.
2026-02-05 · 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 2024 Perimeter Monitor Root Cause Analysis Investigation Report to EGLE on October 9, 2024, as required under Consent Judgment No. 2020-0593-CE. The report documents investigations of perimeter monitoring alarms during July and August 2024, following a standardized procedure that includes weather analysis, back-trajectory modeling, site walks, and gas-well evaluation. All investigations found no obvious deficiencies; leachate systems and compost operations reported no issues.
Key data point: Perimeter monitoring action-level alarm thresholds: 40 ppm methane, 7 ppm hydrogen sulfide. Multiple Q3 2024 investigations conducted (July 1–6, July 13–15, July 19–25, July 27–31, August 3–9) with no deficiencies identified.
2026-02-05 · 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.
This is the 2022 Annual Supplemental Environmental Projects (SEP) report filed by Arbor Hills Landfill under Consent Judgment No. 2020-0593-CE, documenting compliance with three required mitigation measures: perimeter air-quality monitoring (6 Scentroid stations tracking H2S and methane), construction of a Household Hazardous Waste facility, and a vegetative buffer of spruce trees to reduce particulate and odor transport. The report details expenditures totaling approximately $1.04 million and notes operational challenges with solar-powered monitoring batteries and regulatory approvals needed before the HHW facility can open.
Key data point: Perimeter air monitoring for H2S and methane installed at 6 Scentroid locations spanning ¾ mile along the east side (north of Six Mile Road to southeast corner); no quantitative air readings or exceedances reported in this summary document.
2026-02-05 · 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.
This is the Q2 2023 Vertical Gas Collection Well Liquid Monitoring and Management Report for Arbor Hills Landfill, submitted to EGLE in compliance with Consent Judgment No. 2020-0593-CE. The report documents liquid level, gas composition, temperature, and flow data across dozens of vertical wells at both the Arbor Hills East and West facilities, tracking screen submersion, pump functionality, and compliance with the 50% open screen standard. Multiple wells require corrective actions including pump maintenance, well replacement, and redrilling due to obstruction or insufficient liquid levels.
Key data point: No single measured temperature or CO exceedance reported. Document focuses on well liquid levels and pump functionality; gas composition and temperature data referenced in Appendix D but not detailed in the provided pages.
2026-02-05 · 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.
Tetra Tech performed a Q2 2023 engineering evaluation of Arbor Hills Landfill's leachate minimization and stormwater management systems, as required by the 2022 Consent Judgment with EGLE. The inspection found cover systems and grading generally in good condition with adequate stormwater diversion, though vegetation establishment was slow due to dry conditions and several minor repairs and seeding improvements were recommended.
Key data point: No specific measured environmental readings (temperature, CO, water quality) provided; document is a procedural engineering inspection and cover-condition assessment.
2026-02-05 · 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.
This is a notification letter from Arbor Hills Landfill informing the Michigan Department of Environment, Great Lakes, and Energy of a change in the facility's distribution contact list under the Consent Judgment. The letter updates the primary contact from Tony Pelletier to Fernando Camargo, the Area Landfill Director.
Key data point: No specific factual measurements or regulatory findings are present; this is an administrative contact update required by Consent Judgment CJ No. 2020-0593-CE Section 10.1.
2026-02-05 · 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.
This is a 2022 semi-annual Consent Judgment compliance report (CJ 2020-0593-CE) filed by Arbor Hills Landfill Inc. with the Michigan EGLE Air Quality Division. The document includes detailed gas well measurements—hydrogen sulfide concentrations in May 2022 from dozens of wells—and records of second-quarter 2022 surface emissions exceedances with corrective actions (cover placement, liquid level management, gas collection system repair). Multiple wells showed elevated H₂S levels; one well (AHWW0266) reached 13,498 ppm H₂S, and another (AHWTS01R, a leach sump) measured 8,947 ppm H₂S in May 2022.
Key data point: May 2022: Well AHWW0266 measured 13,498 ppm hydrogen sulfide (highest reading); leach sump AHWTS01R measured 8,947 ppm H₂S. Also numerous surface emissions exceedances in Q2 2022 (40,000 ppm penetration at EWL L9R, 24,000 ppm at TR-26, 18,000 ppm at WW-260R).
2026-02-05 · 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.
This 366-page Gas Extraction Report presents quarterly monitoring data from March and April 2023 for the Arbor Hills Landfill, including methane/CO2/oxygen composition from gas extraction wells, carbon monoxide (CO) measurements from Wells of Interest (WOI), and hydrogen/nitrogen readings. The report documents subsurface gas conditions and tracks wells flagged for elevated temperatures (131°F+) under the May 2019 Higher Operating Value (HOV) approval.
Key data point: Carbon monoxide readings from WOI wells in March 2023 ranged 0–30 ppm (scale 5–700 ppm); April 2023 readings showed AHWW0300 at 30–40 ppm, indicating sporadic CO generation in monitored zones. Wells 237R3, 251R2, and 300 became WOI effective September 1, 2020 based on recorded temperatures exceeding 131°F.
2026-02-05 · 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.
This document appears to be a site identification or administrative header with minimal substantive content. It contains only a document name field labeled 'Site', a filing date of February 5, 2026, and a document type designation.
Key data point: No specific factual reading or claim is present in this document.
2026-02-05 · 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.
Q1 2024 Wells of Interest Status Report for Arbor Hills East and West Landfills, detailing liquid level monitoring, screen submersion, sediment obstruction, and pump operation across multiple gas extraction wells. The report tracks well maintenance actions, pump counts, and identified corrective actions needed.
Key data point: Well AHW272R4 shows 90% screen submerged in Q1 2024; multiple wells across both sites have documented obstruction issues and pump maintenance needs.
2026-02-05 · 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.
This 250-page Gas Extraction Report documents methane, carbon dioxide, oxygen, carbon monoxide, and hydrogen readings from multiple wells at Arbor Hills Landfill during May and June 2023. The report includes detailed gas composition data, differential pressure measurements, and CO readings from Wells of Interest (WOI) tracked under the May 2019 HOV (Higher Operating Value) approval. Well AHWW0313 was added to the WOI list in June 2023 after recording temperatures exceeding 131°F.
Key data point: Well AHWW0313 added to WOI effective June 13, 2023 due to recorded temperatures exceeding 131°F; CO readings in June 2023 ranged from 0 to 196 ppm across WOI wells, with AHWW0315 at 196 ppm (5/24/2023) and AHWW0279 at 150 ppm (5/9/2023).
2026-02-05 · 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 submitted its 2023 Supplemental Environmental Projects (SEP) annual report to EGLE under Consent Judgment No. 2020-0593-CE, detailing expenditures and progress on three SEP initiatives: perimeter emissions monitoring ($222,000 in 2023 operations), a household hazardous waste facility ($102,000 in 2023 operations), and vegetative buffer plantings ($76,476.95 in 2023). The report documents compliance with consent judgment obligations and includes supporting invoices and expenditure documentation.
Key data point: No specific measured readings of temperature, CO, or other air quality parameters are provided in this procedural compliance report. The document confirms installation and operation of 6 Scentroid CTair perimeter monitors (monitoring H2S and methane) but does not include actual 2023 emissions data.
2026-02-05 · 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.
Q3 2022 Vertical Gas Collection Well Liquid Monitoring and Management Report for Arbor Hills Landfill, submitted under Consent Judgment CJ No. 2020-0593-CE. The report documents routine monitoring of liquid levels, gas composition, and pump operation across 40+ wells at both AH East and AH West sections, with corrective actions and well replacements implemented throughout 2022 in response to prior assessment recommendations.
Key data point: No measured temperature readings above the MACT limit reported in this Q3 2022 quarterly document. The report focuses on liquid level management and pump functionality rather than subsurface temperature data.
2026-02-05 · 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 submitted its Q3 2024 quarterly compliance report to the Michigan Department of Environment, Great Lakes, and Energy under Consent Judgment No. 2020-0593-CE, including leachate summaries for July–September 2024 and laboratory analytical results for leachate samples. The report certifies compliance with recordkeeping and reporting requirements under the Consent Judgment.
Key data point: No specific temperature, CO, or violation readings are presented on the cover letter or keyword-matched excerpt pages; the document is primarily a procedural filing cover and leachate volume/chemistry summaries without measured exceedance data.
2026-02-05 · 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.
AHL's 2022 First Semi-Annual Report submitted to EGLE under Consent Judgment 2020-0593-CE contains gas well monitoring data and SEM exceedance corrective actions. The report documents hydrogen sulfide concentrations from 100+ wells/sampling points in May 2022 and corrective measures for 36 SEM (surface emission monitoring) exceedances detected in Q2 2022, most corrected by additional cover placement.
Key data point: H₂S concentrations: AHWW0266 = 13,498 ppm (exceeds 10,000 ppm threshold), AHWTS01R = 8,947 ppm, AHW268R2 = 4,463 ppm; multiple wells >1,000 ppm in May 2022. 36 SEM exceedances in Q2 2022 with corrective actions initiated.
2026-02-05 · 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 Q4 2023 Consent Judgment quarterly report from Arbor Hills Landfill to EGLE, submitted January 30, 2024, covering vertical gas collection well liquid-level monitoring, gas composition data, and well maintenance requirements under CJ No. 2020-0593-CE. The report documents well-screen submersion rates, pump functionality, and recommended corrective actions including well replacements at both Arbor Hills East and West sections.
Key data point: No single measured temperature or CO reading above emergency thresholds reported in this excerpt; document tracks well-screen liquid levels, pump operations, and maintenance scheduling. Full report spans 886 pages with detailed well-by-well data tables.
2026-02-05 · 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 submitted its First Quarter 2024 Perimeter Monitor Root Cause Analysis Investigation Report to EGLE on April 15, 2024, documenting procedures and findings for methane and hydrogen sulfide action level alarms at the perimeter monitoring stations. The report covers multiple alarm events in December 2023, including investigation protocols, weather data, and root cause determinations, with findings of no significant deficiencies except for one instance of odor from leachate lift station upgrades.
Key data point: Methane action level alarm threshold: 40 ppm; hydrogen sulfide action level alarm threshold: 7 ppm. Multiple CH4 and H2S alarms registered at monitor MS-2 on December 5, 2023 (0:19–3:50 EST). Leachate re-routing on December 16, 2023 temporarily reduced peroxide dosing effectiveness, causing odor.
2026-02-05 · 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.
This is a comprehensive gas extraction and Wells of Interest monitoring report for Arbor Hills Landfill covering May–June 2023, documenting methane, CO2, oxygen, carbon monoxide, and hydrogen readings across multiple monitoring wells. The report includes detailed attachments tracking CO levels via Drager tubes and hydrogen/nitrogen via quarterly Method 3C/25 sampling at wells designated under the May 2019 HOV approval.
Key data point: Well AHWW0315 measured 196 ppm CO on 5/24/2023 (Drager tube); Well AHWW0313 added to WOI effective 6/13/2023 due to measured temperatures exceeding 131°F; multiple wells show CO and hydrogen readings in May–June 2023.
2026-02-05 · 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.
Weaver Consultants Group conducted a December 2022 quarterly engineering evaluation of Arbor Hills Landfill's leachate minimization systems under Consent Judgment CJ No. 2020-0593-CE. The assessment found cover systems and stormwater diversion structures generally in good condition, with recommendations for additional erosion protection, vegetation seeding, and continued maintenance of diversion berms. GFL submitted an action plan in January 2023 committing to complete recommended improvements including stone check dams, vegetation evaluation and reseeding, and continued berm maintenance through Q1 2023.
Key data point: Cover systems found capable of diverting stormwater and minimizing leachate generation; temporary stormwater collection area in Cell 4F/6A observed with standing water but determined to present low leachate generation potential as it is outside current waste area boundaries.
2026-02-05 · 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.
This is the cover letter and first sections of Arbor Hills Landfill's third-quarter 2023 Consent Judgment compliance report (CJ No. 2020-0593-CE), filed October 30, 2023. The document describes the landfill's Wells of Interest monitoring program, including vertical gas-extraction wells, liquid-level monitoring, pumping operations, and corrective actions undertaken during Q3 2023. The submission includes quarterly data collection from 45 of 205 active vertical wells, multiple construction phases (Phase 2 through Phase 5) completed or ongoing, and infrastructure improvements to gas collection and well de-watering systems.
Key data point: No specific measured temperature or CO readings are stated on the cover pages provided. The document references 'Wells of Interest' and monitoring data tables in attachments, but the actual quantitative readings are not visible in the excerpts shown.
2026-02-05 · 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.
A 366-page Gas Extraction Report from Arbor Hills Landfill (filed Feb 5, 2026) containing detailed quarterly monitoring data for wells of interest (WOI) under the May 2019 HOV approval. The document includes methane/CO2/oxygen composition data from March and April 2023, carbon monoxide Drager tube readings, and hydrogen/nitrogen measurements across 20+ monitored wells. Several wells are flagged as WOI due to recorded temperatures exceeding 131°F, indicating subsurface thermal activity consistent with elevated temperature landfill (ETLF) conditions.
Key data point: Wells 237R3, 251R2, and 300 became Wells of Interest effective September 1, 2020 based on recorded temperatures exceeding 131 degrees F; multiple wells under active HOV waiver monitoring since May 2019.
2026-02-05 · 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 Gas Extraction Report from Arbor Hills Landfill covering September and October 2022, documenting landfill gas composition (methane, CO₂, oxygen) from multiple extraction wells and carbon monoxide/hydrogen readings from Wells of Interest monitored under the May 6, 2019 HOV (Higher Operating Value) approval. The document includes Drager tube CO measurements to demonstrate the absence of subsurface smoldering oxidation (SSO) across 23+ WOI wells.
Key data point: All Drager tube CO readings from 23+ Wells of Interest in September and October 2022 measured 0–5 ppm, consistent with absence of subsurface oxidation; wells were designated WOI based on historical temperatures exceeding 131°F.