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.
GFL submitted a status update on September 28, 2023, regarding corrective actions at vertical gas collection wells at Arbor Hills Landfill, following EGLE approval of a June 2023 supplemental extension request. The document reports on actions with target due dates of August 7 and September 26, 2023, and commits to submitting follow-up reports by October 30, 2023, and January 30, 2024.
Key data point: Document provides no specific factual measurements; it is a procedural status letter referencing corrective action schedules and future reporting deadlines.
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.
GFL submitted its bi-monthly HOV (Higher Operating Value) status report for September and October 2022, documenting Wells of Interest monitoring data. The report includes gas extraction readings, well replacement activities, and carbon monoxide/hydrogen measurements across 22+ wells, all showing low or absent hazardous gas levels.
Key data point: Multiple wells on active HOV waivers since 2019; temperature data in Attachment 7 (Q3 2022 vertical profile) not excerpted here; CO readings consistently 0–5 ppm across all WOI wells in Sept/Oct 2022; no subsidence or crack progression since March 2019 oxidation event.
2026-02-05 · Arbor Hills Landfill · procedural · routine
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Arbor Hills Landfill submitted its Q2 2024 Consent Judgment No. 2020-0593-CE quarterly report on July 30, 2024, detailing vertical gas collection well liquid monitoring and management. The report documents well conditions, screen submersion percentages, pump operations, and gas extraction performance across the East and West landfill sections.
Key data point: No specific measured temperature, CO, or other hazardous readings are stated in the excerpt provided; report focuses on well dewatering, pump maintenance, and screen submersion metrics rather than air or thermal emissions 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.
This Q4 2022 Arbor Hills Landfill well monitoring report documents the status of gas extraction wells with operational challenges, including liquid-level management, screen submersion, obstruction issues, and pump performance across 48 pages of detailed well-by-well data. The report tracks wells classified by construction issues (low solid pipe, high screen submersion) and recommends corrective actions including pump replacement, well redrilling, and infrastructure repairs. Key findings note multiple wells with stuck pumps, air-pressure losses, obstructions, and frozen discharge lines, along with recurring operational failures requiring reinstatement of air and force-main systems.
Key data point: Multiple wells exhibit obstructions, stuck pumps, and air-pressure losses; Well AHW223R5 and others recommend redrilling; frozen discharge lines repaired 12/27/2022; SEM exceedances documented at several wells in Q4 2022; no measured temperature readings above permit limits reported in this excerpt.
2026-02-05 · Arbor Hills Landfill · procedural · routine
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OPAL Fuels submitted a monthly report to Michigan's Air Quality Division for Arbor Hills Energy LLC covering August 2023, as required by PTI No. 68-23. The report transmittal letter provides no specific operational data or measurements.
Key data point: No specific factual readings or claims stated in the document.
2026-02-05 · Arbor Hills Landfill · evidence · notable
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Arbor Hills Landfill submitted its Third Quarter 2023 Perimeter Monitor Root Cause Analysis Investigation Report to EGLE under Consent Judgment No. 2020-0593-CE, documenting procedures and findings for methane (CH₄) and hydrogen sulfide (H₂S) alarm events. The report covers multiple alarm incidents in July and August 2023, including detailed root cause analyses, weather data, and facility inspections. All investigated alarms were attributed to operational factors, with no significant deficiencies identified in gas collection systems, cap integrity, or leachate facilities.
Key data point: Perimeter monitor alarm thresholds: 40 ppm for methane, 7 ppm for H₂S; multiple alarm events documented July–August 2023, all investigated with no critical deficiencies found.
2026-02-05 · Arbor Hills Landfill · procedural · routine
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This is a Liquid Level Report (Table LL-1) for Arbor Hills East Vertical Gas Wells covering Q1 2023, presenting sounding depths, leachate levels, and screen submersion percentages across multiple monitoring wells over a multi-year period from 2020–2023. The document is a routine operational and monitoring data table with no measured temperature, carbon monoxide, or air-quality readings included. No permit violations, measured temperature exceedances, or subsurface oxidation indicators are documented in the excerpted pages.
Key data point: Document contains no factual temperature, CO, oxygen, or air-quality readings. This is a liquid-level and leachate-depth monitoring table only.
2026-02-05 · Arbor Hills Landfill · evidence · urgent
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This is a Q1 2024 Wells of Interest (WOI) Quarterly Status Report submitted by GFL–Arbor Hills Landfill to EGLE on April 15, 2024, documenting landfill gas temperatures, pressures, and chemical composition at multiple monitoring wells. The report includes detailed well-by-well data tables showing methane, CO₂, oxygen levels, temperatures, and pump maintenance records for January through March 2024, along with descriptions of ongoing construction and wellfield management activities.
Key data point: Well AHWW0279 measured at 147.1°F on 3/27/2024; Well AHWW0313 measured at 151°F on 3/12/2024; Well AHWW0312R measured at 152°F on 3/13/2024 (all above 145°F threshold); multiple wells on active HOV waivers with permitted ceilings of 155°F and higher.
2026-02-05 · Arbor Hills Landfill · evidence · notable
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This is Arbor Hills Landfill's First Quarter 2024 Perimeter Monitor Root Cause Analysis Investigation Report filed under Consent Judgment No. 2020-0593-CE. The report documents multiple perimeter monitoring alarm events in December 2023, including methane and hydrogen sulfide detections at the MS-2 monitor, with root cause investigations and corrective actions taken. One notable incident involved odor originating from leachate lift station upgrades on the south side of the landfill.
Key data point: Perimeter monitor MS-2 recorded multiple CH4 and H2S alarm events on 12/5/23 and 12/15-16/23; one identified root cause was leachate lift station construction work that temporarily reduced peroxide dosing effectiveness, creating an odor nuisance.
2026-02-05 · Arbor Hills Landfill · evidence · routine
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Arbor Hills Landfill submitted its 2023 second semi-annual Consent Judgment compliance report (CJ No. 2020-0593-CE) covering July–December 2023, documenting corrective actions on gas wells, surface emissions monitoring exceedances, and perimeter air monitoring procedures. The 4,839-page document includes nine detailed attachments addressing reporting requirements for H₂S concentrations, corrective actions, SEM exceedances, and operational protocols.
Key data point: One WOI (Well of Interest) location measured approximately 120°F (near well 258R, 4th Quarter 2023); no measured exceedances at or above 145°F reported in this semi-annual period.
2026-02-05 · Arbor Hills Landfill · evidence · routine
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This Q3 2022 Vertical Gas Collection Well Liquid Monitoring and Management Report documents the operational status of gas extraction wells at Arbor Hills Landfill under Consent Judgment 2020-0593-CE. The report covers liquid level, gas composition, and pump performance data collected July–September 2022, with recommendations for well maintenance and replacements. It demonstrates Arbor Hills' ongoing compliance efforts to optimize the gas collection system and prevent surface emissions.
Key data point: No specific urgent temperature, CO, or violation readings in this Q3 2022 VGC report. Document is operational/management status tracking; temperature and gas monitoring data are referenced but detailed readings in Appendix D are not included in the pages provided.
2026-02-05 · Arbor Hills Landfill · evidence · routine
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This is a 73-page Q1 2024 Liquid Level Report documenting leachate depths, sediment obstruction, and screen submersion percentages across dozens of vertical gas wells at Arbor Hills East and West landfill sections. The report presents technical monitoring data collected between January and March 2024, with historical measurements dating back to 2020 for comparative analysis.
Key data point: No specific factual reading (temperature, CO, contamination, violation threshold) is stated in the sampled pages. The document is purely hydrological/well-construction data without air-quality or regulatory violation metrics.
2026-02-05 · Arbor Hills Landfill · evidence · notable
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This is a Q1 2023 Vertical Gas Collection (VGC) Well Liquid Monitoring and Management Report prepared by SCS Engineers for Arbor Hills Landfill under Consent Judgment No. 2020-0593-CE. The report documents liquid levels, screen submersion percentages, pump functionality, and gas well conditions across the landfill's East and West sections, tracking compliance with quarterly reporting requirements and identifying wells requiring corrective action such as replacement, pump installation, or maintenance.
Key data point: Multiple wells with obstructed piping, stuck pumps, and submerged screens identified in Q1 2023; well replacements and pump installations recommended for 20+ wells in Arbor Hills West with deadlines ranging from May to August 2023; no specific temperature, CO, or oxygen readings in this liquid-level and well-condition document.
2026-02-05 · Arbor Hills Landfill · evidence · notable
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This is a comprehensive gas extraction and wells-of-interest report for Arbor Hills Landfill covering July through September 2023, presenting detailed temperature, methane, carbon dioxide, oxygen, carbon monoxide, and hydrogen readings across multiple monitoring wells. The document demonstrates ongoing subsurface gas conditions and the operational status of wells under the site's Higher Operating Value (HOV) waiver program.
Key data point: Multiple Wells of Interest with temperatures exceeding 131°F threshold as of May 2023; July 2023 readings include AH147AR4 at 126.2°F, AH148AR3 at 129.1–129.4°F, and AH148BR2 at 119.9–120.6°F; five WOI wells abandoned and replaced (AHWW0287, AHWW0290, AHWW0301, AHWW0302) between July 18–24, 2023; CO draeger tube readings range from 0 to 100 ppm across monitored wells in July–September 2023.
2026-02-05 · Arbor Hills Landfill · evidence · routine
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This is a bi-monthly HOV (Higher Operating Value) status report for September–October 2022 covering Wells of Interest (WOI) at Arbor Hills Landfill. The report documents landfill gas monitoring, well replacement activities, carbon monoxide and hydrogen/nitrogen measurements, and continued compliance with multiple EGLE HOV approval letters dating back to May 2019.
Key data point: Well AHW259R4 measured 147 F (Jan 2022); multiple wells show CO readings of 0–5 ppm (Sept–Oct 2022), consistent with historical data and absence of subsurface oxidation.
2026-02-05 · Arbor Hills Landfill · procedural · routine
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This document is a site plan for Arbor Hills Landfill showing the physical layout and cell designations (various cell codes like 6G, 2FM, 3FM, 4x8, etc.). It contains no quantitative measurements, regulatory findings, or factual data relevant to environmental compliance.
Key data point: No specific factual data or measurements provided.
2026-02-05 · Arbor Hills Landfill · evidence · notable
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This Q4 2022 Wells of Interest (WOI) status report from Arbor Hills Landfill documents liquid level and subsurface conditions across dozens of gas-extraction wells at both the East and West facilities. The document tracks screen submersion, obstructions, sediment, pump operations, and corrective actions required for wells with operational or structural deficiencies. No measured temperature readings above the 145°F urgent threshold are presented in the excerpted pages.
Key data point: Document shows no specific measured temperature readings in excerpted sections. Page 32 (Table 5E) lists well AHEW0L05 with pump daily average values of 93, 98, 94, 105, 108, 132, 126, 101 (units unclear from context, possibly gallons/day or temperature—unable to confirm basis).
2026-02-05 · Arbor Hills Landfill · evidence · notable
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This is a Wells of Interest (WOI) status report covering March–April 2023 gas and temperature data from 16+ landfill gas extraction wells at Arbor Hills Landfill, including multiple measured temperature readings and carbon monoxide Drager tube results. The report documents subsurface conditions under the May 2019 HOV (Higher Operating Value) approval and shows well replacement and rotation activities.
Key data point: Well AHWW312R measured at 170.2°F on 6/13/2022 and 6/23/2022; Well AHWW0279 reached 152.5°F on 5/11/2022; carbon monoxide readings in March–April 2023 ranged from 0–30 ppm across WOI wells.
2026-02-05 · Arbor Hills Landfill · procedural · routine
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This is the Q4 2024 Consent Judgment quarterly report filed by Arbor Hills Landfill on January 30, 2025, with leachate summary data for October–December 2024 and PFAS analytical results from September 2024. The document demonstrates ongoing compliance reporting under Consent Judgment No. 2020-0593-CE.
Key data point: No measured temperature or air-quality readings in the excerpted pages; leachate volumes and PFAS detections (e.g., PFBA 11,000 ng/L, 6:2 FTSA 18,000 ng/L) reported but no exceedance thresholds stated in the provided text.
2026-02-05 · Arbor Hills Landfill · evidence · routine
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This 592-page Gas Extraction Report from Arbor Hills Landfill covers January–March 2024 operational data, including detailed temperature, methane, CO2, and oxygen readings from multiple Wells of Interest (WOI), along with pump maintenance logs and monthly carbon monoxide (CO) tube readings. Temperature readings across all wells remain in the 43–124°F range, with no measured exceedances of the 145°F urgent threshold. All CO readings via Drager tube remain at or below 30 ppm, below the 35 ppm MACT limit.
Key data point: Highest measured temperature: 124.1°F (Well AH148AR3, 2024-02-01), well below 145°F urgent threshold. All CO readings ≤30 ppm (0–30 range, Drager tube). 16 WOI wells on active monitoring per HOV approval.
2026-02-05 · Arbor Hills Landfill · evidence · notable
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This is the 2022 Second Semi-Annual Report filed under Consent Judgment No. 2020-0593-CE, detailing surface emission monitoring (SEM) exceedances and corrective actions at Arbor Hills Landfill for the third and fourth quarters of 2022. The report documents dozens of gas-collection well penetrations and SEM exceedances, with corrective measures including cover placement, liner repairs, and bentonite seal replacements.
Key data point: WOI well WW-306R measured at 129°F (within permitted range); multiple Q4 2022 exceedances submitted to EGLE with extension letters for 2023 remediation; WW-207R (WOI location) at 77°F with 0% O₂.
2026-02-05 · Arbor Hills Landfill · evidence · routine
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This is a Q1 2023 Liquid Level Report for Arbor Hills East Vertical Gas Wells, presenting depth-to-liquid-level measurements, leachate depths, and screen submersion percentages across multiple monitoring wells collected between May 2020 and March 2023. The report tracks leachate accumulation and screen conditions across dozens of gas extraction wells at the landfill but contains no temperature, carbon monoxide, oxygen, or hazardous substance readings.
Key data point: No specific factual claim or measured reading is extractable; this is a technical data table with well construction, liquid levels, and screen submersion metrics but no regulatory violations, temperature anomalies, or air quality findings.
2026-02-05 · Arbor Hills Landfill · evidence · notable
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This is Arbor Hills Landfill's 2024 First Semi-Annual Report to EGLE under Consent Judgment No. 2020-0593-CE (dated 9/13/2024). Its attachments include the 2024 annual gas-well hydrogen sulfide (H2S) survey (per-well H2S readings in ppm, by HCH meter and Drager tube), the corrective actions completed on individual wells (pump repairs, well replacements) for January-June 2024, and the Q1 2024 Surface Emission Monitoring (SEM) exceedance table. The SEM table shows five surface emission exceedances (875 to 5,407 ppm at initial discovery) that were resolved to compliant levels within the required 30-day follow-up window through soil/bentonite repairs and vacuum adjustments.
Key data point: Surface emission near well AHWW0504 measured 5,407 ppm at initial discovery (2/6-8/2024), reduced to 59 ppm by the Day 30 recheck (3/6-8/2024) after corrective grading with clean soil, per the Q1 2024 SEM Exceedance Table.
2026-02-05 · Arbor Hills Landfill · evidence · urgent
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This is GFL's Third Quarter 2023 (July–September) HOV WOI Status Report, submitted to EGLE in October 2023, detailing landfill gas monitoring data from 16+ Wells of Interest at Arbor Hills Landfill under multiple Higher Operating Value waivers. The report confirms ongoing waste placement, well replacements, gas-extraction infrastructure upgrades, and monthly temperature, carbon monoxide, and hydrogen/nitrogen readings across the WOI network.
Key data point: Well AHWW312R measured 158.3°F on 2023-08-29 and 157.9°F on 2023-08-29; well AHWW301R measured 138.1°F on 2023-08-04. These are measured temperatures on active HOV waivers; AHWW312R exceeds the 145F urgent threshold.
2026-02-05 · Arbor Hills Landfill · evidence · notable
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This is Arbor Hills Landfill's 2024 First Semi-Annual Report to EGLE under Consent Judgment No. 2020-0593-CE. It covers several reporting subparagraphs: the 2024 annual gas-well hydrogen sulfide (H2S) survey (per-well H2S readings in ppm across hundreds of wells), a list of corrective actions completed on specific wells (pump and well replacements), and a 1st Quarter 2024 SEM Exceedance Table showing locations that exceeded surface methane limits along with the corrective actions taken. Some corrective actions were completed after their due dates.
Key data point: SEM exceedance survey location 25 yds SW of AHWW0504 recorded an initial 5,407 ppm surface methane reading (well itself logging 58% CH4, 0.8% O2), 2/6-8/2024, reported under Consent Judgment No. 2020-0593-CE Section 5.4(A)(4).
2026-02-05 · Arbor Hills Landfill · procedural · routine
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This is the 2024 Supplemental Environmental Projects (SEP) Annual Report filed by Arbor Hills Landfill under Consent Judgment 2020-0593-CE, documenting compliance with three SEP requirements: perimeter emissions monitoring (6 Scentroid stations monitoring H₂S and methane), a household hazardous waste facility (operational since October 2023), and vegetative buffer plantings (132 spruce trees across two phases). The document includes expenditure certifications and invoices for leachate water disposal.
Key data point: Arbor Hills spent $547,000 in 2024 to operate and maintain 6 perimeter emissions monitoring stations installed in 2022 on the east side of the landfill west of Napier Road; to date over $1.3 million has been spent on this system under Consent Judgment 2020-0593-CE.
2026-02-05 · Arbor Hills Landfill · evidence · urgent
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This excerpt is from an Arbor Hills Landfill Wells-of-Interest (WOI) gas monitoring dataset tracking carbon monoxide, hydrogen, nitrogen/balance gas, and wellhead temperature/CH4/CO2/O2 readings across numerous WOI wells from May 2022 through April 2023. Several WOI wells (AHWW0279, AHWW0300, AHWW285R, AHWW311R, and especially AHWW312R) show measured wellhead temperatures well above the 131F and 145F regulatory reference points, consistent with the site's ongoing elevated-temperature/HOV-waiver monitoring regime. Drager tube CO and hydrogen readings shown here remain low, used to document the absence of subsurface smoldering (SSO).
Key data point: AHWW312R measured a wellhead temperature of 170.2F, 6/13/2022 (highest measured reading in this excerpt).
2026-02-05 · Arbor Hills Landfill · evidence · notable
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This is a technical Wells of Interest (WOI) status report documenting temperature, carbon monoxide, hydrogen, and nitrogen readings from multiple monitoring wells at Arbor Hills Landfill during May and June 2023. Well AHWW0313 was elevated to WOI status in June 2023 after recorded temperatures exceeded 131°F. The report tracks subsurface gas and temperature conditions across 12–13 active WOI wells, with measurements supporting ongoing HOV (Higher Operating Value) waiver management.
Key data point: Well AHWW0313 recorded measured temperature of 148.6°F on 6/27/2023, exceeding the 131°F WOI threshold; well became active WOI on 6/13/2023 per EGLE approval. AHWW0315 measured CO at 196 ppm on 5/24/2023.
2026-02-05 · Arbor Hills Landfill · evidence · routine
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This is the 2022 Q2 (second quarter) Consent Judgment quarterly report for Arbor Hills Landfill, containing detailed well liquid-level and gas-extraction monitoring data across multiple tables. The document tracks screen submersion percentages, pump operations, leachate volumes, and corrective actions for dozens of monitoring wells at both the East and West landfill sections.
Key data point: No specific measured temperature, CO, or other air-quality readings are provided in the visible pages; this is a liquid/leachate and well-management report. Numerous wells flagged for pump maintenance, replacement, or abandonment due to obstruction and submersion issues.
2026-02-05 · Arbor Hills Landfill · evidence · notable
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Arbor Hills Landfill submitted its fourth quarter 2024 Consent Judgment compliance report on January 30, 2025, including leachate summaries for October–December 2024 and PFAS analytical results from a DAF effluent sample collected September 25, 2024. The document is a mandatory quarterly filing under CJ No. 2020-0593-CE Section 6.2.
Key data point: DAF effluent sample (09/25/2024) detected PFBA 11,000 ng/L, PFHxA 8,400 ng/L, PFBS 12,000 ng/L, 6:2 FTSA 18,000 ng/L, and PFOA 2,200 ng/L.
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 5834-page 2022 First Semi-Annual Report filed under Consent Judgment No. 2020-0593-CE, containing detailed hydrogen sulfide (H2S) well measurements from May–June 2023, gas extraction corrective action records, and a 2023 perimeter air-monitoring action-level log tracking methane and H2S exceedances. The document records ongoing compliance efforts including surface erosion remediation, well screen submergence issues, and perimeter alarm investigations at Arbor Hills Landfill.
Key data point: Well AHWW0266 (northeast bowl, West) measured at 20,000–25,000 ppm H2S on 6/20/2023 via Drager Tube; well pinched at 50 feet below ground surface, not pumping, required emergency leachate seep mitigation and scheduled replacement in 2023 GCCS season. Perimeter monitors documented multiple CH4 and H2S exceedances throughout early 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 is a 5,834-page 2022 First Semi-Annual Report filed under Consent Judgment 2020-0593-CE, containing detailed hydrogen sulfide (H2S) measurements from dozens of monitoring wells across Arbor Hills Landfill West, quarterly gas-extraction exceedance tables, and a 2023 perimeter action level log documenting methane and H2S alarm events. The document provides comprehensive monitoring data for subsurface gas conditions and surface emissions throughout the site.
Key data point: H2S levels measured across 70+ wells in May–June 2023, ranging from 0 to 25,000 ppm; well AHWW0266 (a vertical well) recorded 20,000–25,000 ppm H2S on 6/20/2023; perimeter monitors detected multiple CH4 exceedances in early 2023, with maximum reading of 112.3 ppm CH4 at MS-1 on 2/18/2023.
2026-02-05 · Arbor Hills Landfill · evidence · notable
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This is the January 6, 2025 HOV (Higher Operating Value) WOI (Wells of Interest) Status Report for the second semi-annual period of 2024 (July–December). GFL–Arbor Hills Landfill reports on landfill gas data, well maintenance, carbon monoxide and hydrogen measurements, and subsurface oxidation monitoring under multiple EGLE HOV approvals dating back to May 2019. The report documents continued gas-extraction system improvements, well replacements, and vacuum piping installations across the WOI area.
Key data point: Well AHW272R4 measured at 142.1°F (November 4, 2024), within the 155°F HOV permitted ceiling. Multiple wells on active HOV waivers since 2019; subsurface oxidation event occurred March 2019, with no new subsidence or cracks identified since remediation.
2026-02-04 · Arbor Hills Landfill · evidence · notable
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On February 1, 2026, perimeter air monitors at Arbor Hills Landfill triggered multiple methane (CH4) action-level alarms between 4:40 PM and 7:01 PM, and an EGLE inspector observed light to stronger landfill gas odor in nearby residential subdivisions and along 6 Mile Road. GFL's Root Cause Analysis identified a power trip at the RNG facility that morning causing reduced vacuum for approximately one hour, which led to a wellhead popping off and gas being diverted to the flare; the wellhead was repaired and the RCA confirmed no other significant deficiencies.
Key data point: Multiple CH4 alarms at action level (40 ppm threshold) across five perimeter monitors (MS-1 through MS-5) on February 1, 2026, 4:40 PM–7:01 PM EST; EGLE field observation of landfill gas odor in Steeplechase subdivision and at 6 Mile Road; root cause: RNG facility power trip causing 1-hour vacuum loss and wellhead displacement.
2026-02-04 · Arbor Hills Landfill · evidence · notable
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GFL reports its root-cause investigation into a 2/1/26 odor event affecting multiple neighborhoods near Arbor Hills. The investigation identified a popped wellhead at collection well WW-270R in the southern cluster and a settled caisson with a broken seal near a 140,000 ppm gas exceedance; both have been repaired. An EGLE inspector observed light to strong landfill gas odor in Steeplechase subdivision and along 6 Mile Road on the evening of the event.
Key data point: Well WW-270R wellhead popped off; separate caisson settled with broken seal near 140,000 ppm gas exceedance area (2/1/26 event, southern cluster)
2026-02-02 · Arbor Hills Landfill · evidence · notable
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An EGLE Air Quality Division inspector conducted a nighttime odor survey on 2/1/2026 around Arbor Hills Landfill and nearby subdivisions in Northville. The survey detected landfill gas (LFG) odors rated 2–3 (distinct/definite objectionable) along Briar Ridge Lane and near the scale house on 6 Mile Road, and smoke/burning odors rated 1–2 in downwind residential areas (Florissant Dr., Heather Ridge). Multiple neighbor complaints were recorded in the same areas during the survey window.
Key data point: Odor Scale 2–3 (distinct and definite objectionable odor, LFG sour/vinegar) detected on 6 Mile Rd near scale house and Briar Ridge Lane, Northville, 2/1/2026, 8:40–8:50 PM; Odor Scale 1–2 (smoke/burning) in downwind residential subdivisions correlated to west of site.
2026-01-30 · Arbor Hills Landfill · evidence · routine
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This is Arbor Hills Landfill's Q4 2025 quarterly report to EGLE under Consent Judgment No. 2020-0593-CE, covering vertical gas collection (VGC) well liquid level monitoring and gas monitoring for the facility's gas collection and control system (GCCS). The attached SCS Engineers report documents hundreds of individual well readings (sounded depth, liquid level, percent screen submerged, pump rates) and lists wells requiring corrective action such as pump repairs, well replacement, or further evaluation. No temperature or combustion data is included in the excerpted pages; the focus is liquid management compliance under the Consent Judgment.
Key data point: Well AHEW0L05 showed 180% screen submerged by liquid/obstruction in Q4 2025 (down from 305% in Q3), among numerous wells exceeding 100% submerged thresholds requiring corrective action under CJ No. 2020-0593-CE.
2026-01-28 · Arbor Hills Remediation Area · 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 laboratory analytical report dated December 18, 2025, analyzing a wastewater grab sample (Outfall-001A) collected on December 4, 2025, from GFL Environmental's Arbor Hills Landfill for per- and polyfluoroalkyl substances (PFAS) using EPA Method 537M. The sample was analyzed by Metiri Analytical Group and shows detectable levels of several PFAS compounds including PFBA (100 ng/L), PFPeA (44 ng/L), PFHxA (40 ng/L), and others, with many compounds reported as not detected.
Key data point: PFBA detected at 100 ng/L, PFPeA at 44 ng/L, PFHxA at 40 ng/L in wastewater outfall sample collected December 4, 2025—quantified PFAS detection in landfill discharge.
2026-01-28 · Arbor Hills Remediation Area · 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 submitted a PFAS monitoring report for Arbor Hills (permit MI0045713) dated 2026-01-28, reporting effluent measurements from discharge point 001A sampled on 2025-12-04. The laboratory analysis detected multiple PFAS compounds including PFBA (100 ng/L), PFPeA (44 ng/L), PFHxA (40 ng/L), and others, with several analytes showing non-detects or QA/QC issues noted for recovery limits.
Key data point: Effluent sampling 12/04/2025 from outfall 001A detected PFBA at 100 ng/L, PFPeA at 44 ng/L, and PFHxA at 40 ng/L; multiple QA/QC qualifiers flag potential low or high bias in results.
2026-01-21 · 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.
Green For Life (GFL) filed a Notification of Intent to Renovate under the asbestos rule on behalf of Arbor Hills Landfill (N2688). The project involves removal of approximately 100 sq. ft. of asbestos-containing material (RACM), with work scheduled from February 9, 2026 through December 31, 2026, and an asbestos survey completed on January 21, 2026.
Key data point: 100 sq. ft. of RACM to be removed at Arbor Hills Landfill (N2688), 10690 6 Mile Road, Northville, MI; asbestos removal dates 02/09/2026–12/31/2026; survey completed 01/21/2026.
2026-01-21 · 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 (SRN N2688) filed a planned asbestos removal notification with EGLE on January 21, 2026, identifying approximately 100 square feet of Regulated Asbestos Containing Material (RACM) designated as "Type II Waste" to be removed via drilling and excavation between February 9 and December 31, 2026. The work will proceed Monday through Saturday, 6 a.m. to 6 p.m. (weekdays) and 7 a.m. to 6 p.m. (Saturday), with water spray dust control and stop-work protocols for unexpected friable asbestos.
Key data point: 100 sq. ft. of RACM (Type II Waste) removal via drilling and excavation, February 9 – December 31, 2026, Arbor Hills Landfill (SRN N2688).
2026-01-21 · 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.
This document is a brief operational statement indicating that the Arbor Hills Landfill does not conduct asbestos surveys and notes that GPS surveying of asbestos disposal locations is required throughout the year.
Key data point: No specific factual claim or measurable data point is provided.
2026-01-20 · 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 Landfill responds to an EGLE inquiry regarding Certificate of Coverage No. MIS210766, stating that no new sample results are available to submit at this time and that all previously collected results have been submitted via email or the MiEnviro portal in accordance with the COC.
Key data point: No specific factual readings or data points provided; document is a procedural acknowledgment letter confirming compliance with existing reporting requirements.
2026-01-20 · 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 an NPDES Schedule of Compliance response to the Michigan Department of Environment, Great Lakes, and Energy (EGLE) dated January 20, 2026, in reply to a letter received on January 8, 2026. The submission includes a detailed response document addressing unscheduled permit-required reports for the Arbor Hills Remediation Area under permit MIS210766.
Key data point: No specific factual readings or measured data are provided in this procedural document; it is a regulatory filing acknowledgment with an attached response letter not shown here.
2026-01-13 · 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 GFL's 2025 Second Semi-Annual Wells of Interest (WOI) Status Report filed with EGLE in January 2026, covering landfill gas monitoring data (July–December 2025) from wells on Higher Operating Value (HOV) waivers. The report includes monthly temperature, gas composition, and carbon monoxide readings from 16+ wells, along with updates on vacuum system maintenance and construction activities. No new subsidence, cracks, or geysers have been observed since March 2019; gas quality remains consistent at 48–53% methane and 1.3–1.8% oxygen.
Key data point: Well AHWW0279 consistently measured at 154–156°F (July–December 2025), within its approved HOV ceiling; well AHWW258R at 125–130°F; well AHWW0315 at 117–138°F; well AHW233R4 at 115–122°F; several other WOI wells in the 80–120°F range.
2026-01-11 · 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 photograph of Cell 6C at the Arbor Hills Landfill, filed with EGLE on 2026-01-11. No text, measurements, or narrative content is provided in the submission.
Key data point: No specific factual reading or claim extractable from a photograph without accompanying text or data.
2026-01-11 · 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.
A methane concentration results map filed with EGLE on January 11, 2026, displaying spatial methane distribution data in parts per million across the monitoring area.
Key data point: No specific quantitative readings or well locations are provided in the document name or descriptor; methane concentrations are shown visually on a map.
2026-01-11 · 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 GPS data file from an SEM5000 instrument deployed at Arbor Hills Landfill on 01/08/2026, capturing 114 waypoints with location coordinates, satellite lock, and GPS quality metrics during a perimeter survey mission. The file contains no environmental measurements (temperature, CO, or air quality data) — only positioning and signal-strength information.
Key data point: No factual environmental readings present; document is GPS survey metadata only.
2026-01-11 · 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 SEM5000 Data File in KMZ format was filed on January 11, 2026. The document header provides only the file type and filing date with no substantive environmental data, measurements, or narrative content visible.
Key data point: No specific factual readings or claims are stated in the document; only a file metadata entry is present.
2026-01-11 · 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 photograph of newly constructed Cell 6C at Arbor Hills Landfill, filed with EGLE on January 11, 2026. The image shows active construction or operational setup of this landfill cell. No measurements, violations, or risk assessment data are provided in the image itself.
Key data point: No specific factual readings or claims present; photo documentation only.