2022-02-15 · 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.
GFL Environmental submitted an Updated Remediation Plan for Arbor Hills Landfill to EGLE on February 15, 2022, following a December 2021 response. The plan includes site diagrams showing storm water management infrastructure modifications, including installation of a forebay to pump out incoming storm water and permanent abandonment of certain pipe discharges.
Key data point: No specific factual measurements or violation details provided in the document text; this is a transmittal of a remediation plan to regulators.
2022-02-12 · Arbor Hills Landfill · AQD Violation Notice Response · Source: EGLE APS downloads server (public; not in EGLE Document Mirror)
2022-01-21 · 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 Second Interim Short-Term Stormwater Characterization Study (STSWCS) Report submitted by Arbor Hills Landfill on January 21, 2022 presents PFAS (perfluoroalkyl and polyfluoroalkyl substances) sampling results from stormwater across multiple on-site and off-site locations. The study characterizes potential PFAS sources, including consumer waste and AFFF (aqueous film-forming foam) discharged to two ponds and a wetland area following a 2016 fire-suppression incident at a recycling facility on the property.
Key data point: PFAS-containing AFFF wastewater confirmed discharged to Pond 1, Pond 2, and Wetland #1 by local fire department in November 2016; discharge line of Pond 2 has been capped; monitoring continuing monthly with low PFOS concentrations detected.
2022-01-21 · 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 Schedule of Compliance report for the Arbor Hills Remediation Area on January 21, 2022, including a Second Interim Subsurface Thermal and Structural/Cover System (STSWCS) report as an attachment. The submission was received and digitally signed by the Michigan Department of Environment, Great Lakes, and Energy (EGLE).
Key data point: No specific factual readings or measurements are provided in this cover page; the substantive data would be in the attached 'Second Interim STSWCS Report' PDF, which is not included in this text.
2022-01-21 · 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 remediation schedule for Arbor Hills Landfill (Permit MIS210766) on January 21, 2022, in response to an apparent enforcement or compliance requirement. The submission includes an attached remediation plan dated December 22, 2021. No substantive details or measurements are provided in the submission cover sheet itself.
Key data point: No specific factual readings or claims stated in this submission cover sheet; the actual remediation plan is in the attached PDF, which is not provided here.
2022-01-21 · 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.
Arbor Hills Landfill responds to EGLE's November 2021 directive to remediate Ponds 1 and 2, which contain elevated PFAS concentrations from Aqueous Film Forming Foam (AFFF) discharged by the fire department during a 2016 incident at an adjacent facility. The facility proposes a detailed 2022 remediation schedule involving off-site pumping and hauling, excavation of contaminated sediment and soil, and post-remediation monitoring, while disputing EGLE's classification of the storm water as a regulated liquid industrial byproduct.
Key data point: PFAS contamination in Pond 1 and Pond 2 confirmed; source attributed to AFFF discharge from fire department in November 2016 at Great Lakes Recycling facility; remediation plan with completion targeted by December 2022.
2022-01-19 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
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This is a site plan document for a proposed Renewable Natural Gas (RNG) facility at the Arbor Hills West Expanded Sanitary Landfill (10690 West Six Mile Road, Northville, Michigan). The document presents multiple maps showing topography, aerial imagery, soil surveys, wetlands, floodplains, and elevation data relevant to the RNG plant location. The proposed RNG facility limits encompass 1.87 acres and would impact 0.36 acres of wetlands.
Key data point: Proposed RNG facility limits 1.87 acres; wetland impact area 0.36 acres with 334 sq ft of wetland swale impact.
2022-01-19 · Arbor Hills Landfill (Land & Water Interface) · 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 Environmental authorizes Golder Associates to submit a joint permit application to EGLE for wetland impacts related to a proposed Renewable Natural Gas (RNG) project at the Arbor Hills Landfill facility. This is a procedural authorization letter dated December 30, 2021, filed with the Water Resources Division on January 19, 2022.
Key data point: No specific factual readings or measurements; this is a procedural authorization letter.
2022-01-19 · Arbor Hills Landfill (Land & Water Interface) · 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.
Golder Associates conducted a wetland delineation study on approximately 30 acres at the Arbor Hills Landfill near Northville, Michigan, to determine the presence and boundaries of wetlands potentially subject to Michigan's Natural Resources and Environmental Protection Act (NREPA). The work was performed at GFL Environmental's request to assist in planning the Site's use.
Key data point: No specific factual findings or measurements are presented on the cover page; full report review required to extract delineation results.
2022-01-19 · Arbor Hills Landfill (Land & Water Interface) · 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 Environmental submitted a Joint Permit Application (JPA) on January 19, 2022 for construction of a Renewable Natural Gas (RNG) facility at the Arbor Hills Landfill in Washtenaw County, Michigan. The proposed 1.87-acre facility will impact approximately 0.37 acres of emergent wetland, which GFL proposes to mitigate through purchase of 0.56 wetland mitigation bank credits at a 1.5:1 ratio.
Key data point: No specific measured environmental readings are present in this document. It is a permit application form with project design and impact scope information only.
2022-01-19 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
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This document is a form identifying adjoining properties to the Arbor Hills Landfill, listing the landfill's parcels and nearby landowners including Braeburn Golf Course, an adjacent property on Napier Road, and Salem Township property on Six Mile Road.
Key data point: No specific factual readings or regulatory claims; this is a property-identification roster dated December 28, 2021.
2022-01-13 · Arbor Hills Remediation Area · procedural · routine
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Email chain coordinating a public townhall on PFAS groundwater investigation at Arbor Hills Landfill between EGLE, Northville Township, and community stakeholders. EGLE indicates a remediation plan evaluation for two AFFF-contaminated ponds will likely be ready by the townhall date.
Key data point: No specific factual readings or measured data provided; document is a scheduling coordination among regulators and township officials regarding a PFAS groundwater investigation townhall.
2022-01-13 · Arbor Hills Landfill · procedural · routine
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This document appears to be a metadata stub or header rather than substantive environmental content. It provides only a site classification label and filing date with no measurements, regulatory findings, or risk analysis.
Key data point: No specific factual reading or claim present.
2022-01-11 · Arbor Hills Remediation Area · evidence · routine
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This is a laboratory analytical report from Pace Analytical Services dated January 5, 2022, documenting wastewater sample analysis collected on December 2, 2021 from GFL Environmental at the Arbor Hills site. The report presents results for metals, semivolatiles, and volatile organic compounds, with most analytes reported as below detection limits.
Key data point: No specific factual claim of exceedance or violation; sample matrix is wastewater (WW), collected 12/02/2021, with all reported analytes either non-detect or well below reporting limits.
2022-01-11 · Arbor Hills Remediation Area · evidence · routine
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This is a laboratory analytical report from Pace Analytical Services dated December 16, 2021, documenting the analysis of a water discharge sample collected on December 2, 2021. The sample was tested for total phenolics using EPA Method 420.4, and the result was 0.24 mg/L with a reporting limit of 0.080 mg/L.
Key data point: Total phenolics measured at 0.24 mg/L in discharge sample DISCHARGE 001A collected 12/02/21, analyzed by Pace Analytical Services using EPA 420.4.
2022-01-11 · Arbor Hills Remediation Area · procedural · routine
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This is a regulatory certification filed by Arbor Hills Landfill on January 11, 2022, confirming completion of additional monitoring requirements under permit MI0045713. The operator certifies that all required parameters were monitored and analyzed in compliance with permit conditions using acceptable quantification levels and methods.
Key data point: No specific quantitative readings provided; this is a procedural certification of compliance with monitoring obligations.
2022-01-11 · Arbor Hills Remediation Area · evidence · routine
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This is a December 2021 Discharge Monitoring Report (DMR) for Arbor Hills Remediation Area under NPDES Permit MI0045713 v5.0. The report documents daily and monthly measurements of effluent parameters including flow, suspended solids, nutrients, metals, and temperature. All reported measurements appear to comply with permit limits, with temperature readings ranging from 42.8°F to 54.0°F.
Key data point: Maximum daily effluent temperature in December 2021 was 54.0°F; no violation of permit limits; facility reported compliance with all measured parameters.
2022-01-11 · Arbor Hills Remediation Area · evidence · routine
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Pace Analytical laboratory report dated December 10, 2021, containing mercury analysis results for water samples from DISCHARGE 001A at Arbor Hills Landfill (GFL Environmental). Three samples were collected on December 2, 2021, and analyzed using EPA method 1631E for low-level mercury detection. The report includes quality control data, method blanks, and matrix spike results confirming analytical validity.
Key data point: Mercury detected at 2.00 ng/L and 2.12 ng/L in discharge grab samples collected 12/02/21; field blank non-detect (ND) at reporting limit 0.50 ng/L.
2022-01-10 · Arbor Hills Remediation Area · procedural · notable
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This is an internal MDEQ review of Arbor Hills Landfill's NPDES permit reissuance application for treated groundwater discharge to an unnamed tributary of Johnson Drain. The review identifies multiple water quality concerns in the receiving stream (PCBs, mercury, E. coli, dissolved oxygen) and recommends effluent limits for mercury, cyanide, and thermal discharge, along with enhanced monitoring requirements.
Key data point: Thermal discharge limit exceeded three times during review period; final effluent temperature ranged from 1.5°F to 66.2°F with 28 of 32 discharge days showing reasonable potential to exceed Michigan Water Quality Standards.
2022-01-10 · Arbor Hills Remediation Area · evidence · notable
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This is a Water Quality-Based Effluent Limits (WQBEL) biologist recommendation document for the NPDES permit reissuance of Arbor Hills Landfill's groundwater discharge (MI0045713, Outfall 001). The facility discharges treated groundwater at up to 0.1 MGD to an unnamed tributary of Johnson Drain. The document recommends specific monitoring and effluent limits for mercury, cyanide, and thermal discharge based on reasonable potential analysis of historical discharge data from 2017–2021.
Key data point: Mercury measured at 0.7–2.3 ng/L (below current LCA limit); recommend new LCA of 2.0 ng/L with quarterly monitoring. Cyanide single high reading of 66 µg/L detected; recommend daily maximum of 44 µg/L and monthly average of 5.2 µg/L. Final effluent temperature ranged 1.5–66.2°F; thermal discharge limit of 0.1 MBTU/hr exceeded three times during review period (Jan 2017–Oct 2021).
2022-01-04 · Arbor Hills Remediation Area · procedural · routine
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Arbor Hills Remediation Area submitted its annual Storm Water Pollution Prevention Plan (SWPPP) review for 2022 under permit MIS210766, affirming compliance with all regulatory requirements including inspections, training, maintenance, and documentation. The facility noted that a revision to the SWPPP was underway to account for new processes associated with a Hauling Facility on site.
Key data point: No specific quantitative or factual readings provided; document is a compliance attestation form with yes/no answers confirming permit compliance as of January 4, 2022.
2021-12-22 · Arbor Hills Remediation Area · procedural · routine
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GFL submitted an NPDES Schedule of Compliance report for the Arbor Hills Remediation Area on December 22, 2021, in response to a five-day notice regarding discharge issues under permit MI0045713. The submission includes a formal response attachment but provides no additional comment.
Key data point: No specific quantitative data or factual findings stated in the submission itself; it is a procedural filing acknowledging receipt of a five-day NPDES discharge violation notice.
2021-12-22 · Arbor Hills Remediation Area · evidence · routine
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Golder Associates filed a 5-day Notice of Non-Compliance on December 22, 2021, reporting that foam was identified in the NPDES discharge from Arbor Hills Remediation Area on December 20, 2021. The discharge was discontinued at 14:15 that day; the foam occupied approximately 12" × 12" × 2" in the receiving water and is attributed to natural decomposition.
Key data point: Foam identified in NPDES discharge (MI0045713), December 20, 2021, 13:30; 0.09578 million gallons discharged December 19–20; discharge discontinued 14:15 December 20.
2021-12-15 · Arbor Hills Energy · procedural · Source: U.S. DOJ / EPA (ECHO Case 05-2019-5040; DOJ Docket 90-5-2-1-12226) via EGLE's own facility document page (already in the Lotext workbench, source-docs/egle-documents/N2688_CD_20211215.pdf)
2021-12-14 · Arbor Hills Remediation Area · procedural · routine
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GFL Environmental requested a one-week extension (to December 22, 2021) to submit a Remediation Plan Response to EGLE's November 1, 2021 letter, citing COVID-19 illness. EGLE approved the extension. The correspondence also addresses PFAS-related Short-Term Storm Water Characterization Study (STSWCS) sample results, which EGLE required to be submitted via MiWaters promptly rather than held for the final report.
Key data point: No specific factual or measurement data in this document; it is a procedural extension approval with no quantitative findings or violations cited.
2021-12-13 · Arbor Hills Remediation Area · procedural · routine
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The Michigan Department of Environment, Great Lakes, and Energy issued an NPDES Certificate of Coverage (COC No. MIS210766) on June 20, 2023, authorizing Arbor Hills Landfill Incorporated to discharge stormwater from the Arbor Hills Remediation Area to Johnson Drain under General Permit MIS210000. The COC certifies that the permittee is in compliance with storm water pollution prevention requirements, source controls, and applicable Total Maximum Daily Loads for dissolved oxygen, biota, and E. coli.
Key data point: No specific factual measurements or violation findings; this is a permit issuance document certifying compliance status as of October 4, 2021, with general permit conditions through April 1, 2027.
2021-12-10 · Arbor Hills Remediation Area · procedural · routine
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This is a Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area covering November 2021. The document lists permit requirements for water quality parameters including flow, suspended solids, CBOD5, ammonia nitrogen, phosphorus, arsenic, mercury, selenium, temperature, pH, and dissolved oxygen at the final effluent outfall. The report indicates "No Discharge" for the monitoring period.
Key data point: No specific measured readings are provided in this document; it is a template/schedule listing permit limits and monitoring requirements only.
2021-12-07 · Arbor Hills Remediation Area · procedural · routine
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This is page 6–7 of a water discharge permit (MI0045713) detailing monitoring requirements for thermal discharge and water quality constituents including metals, volatile organic compounds, and other contaminants. The document specifies analytical methods, quantification levels, and reporting procedures for periodic sampling at designated monitoring points and control wells.
Key data point: No specific measured readings or site-specific data point provided; this is a procedural permit document listing required testing parameters and methods.
2021-12-07 · 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 report for the Arbor Hills Remediation Area on 12/7/2021, indicating that annual water-quality parameters were collected on 12/2/2021 and sent for laboratory analysis per permit requirements.
Key data point: Annual NPDES parameters collected 12/2/2021 for Arbor Hills Remediation Area (Permit MIS210766); analytical results pending.
2021-12-03 · Arbor Hills Remediation Area · evidence · notable
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This is a First Interim Short-Term Stormwater Characterization Study (STSWCS) Report filed by Arbor Hills Landfill Inc. in December 2021 to characterize PFAS (perfluoroalkyl and polyfluoroalkyl substances) sources in stormwater at the facility. The study evaluated two qualifying rain events in September and October 2021 and identified PFAS-containing aqueous film-forming foam (AFFF) discharged by local fire department during a 2016 recycling facility fire, as well as consumer waste, as potential PFAS sources. Samples from multiple on-site and off-site locations were analyzed, with nine of eleven roadway drainage ditch samples exceeding Michigan's Rule 57 Human Noncancer Value for PFOS (12 ppt/12 ng/L).
Key data point: Nine of eleven roadway drainage ditch samples exceeded Michigan Rule 57 HNV for PFOS (12 ng/L); PFOS readings ranged 27–56 ng/L in SW and NW roadway ditches on 9/22/2021 and 10/21/2021; AFFF source from 2016 fire confirmed in Pond 1, Pond 2, and Wetland #1.
2021-12-03 · Arbor Hills Remediation Area · procedural · routine
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A procedural submission filing for Arbor Hills Landfill dated December 3, 2021, submitting a first interim Sampling, Testing, and Stabilization/Containment Strategy (STSWCS) Report. The filing references a remediation area at the site but provides no permit number or detailed comment.
Key data point: No specific factual data or measurements provided in this cover document.
2021-12-01 · Arbor Hills Remediation Area · evidence · notable
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An NPDES permit reissuance compliance memo for Arbor Hills Remediation Area (Permit MI0045713) documents industrial stormwater PFAS concerns, including September–October 2021 grab samples showing PFOS exceedances in roadside ditches and storm water outfalls. The facility also reported TSS exceedances in April 2021 and ammonia exceedances in January 2021; an ACO for PFAS discharge regulation was being issued by the Emerging Pollutants Section.
Key data point: PFOS exceedances detected in roadside ditches and storm water outfalls, September–October 2021; ACO for PFAS regulation in process.
2021-11-22 · Arbor Hills Remediation Area · procedural · routine
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EGLE approved GFL's extension request to respond to a November 1, 2021 remediation letter by December 15, 2021, and separately mandated that PFAS-related Short-Term Storm Water Characterization Study sample results be submitted via MiWaters by December 3, 2021, with all future results submitted upon receipt.
Key data point: No specific quantitative measurement provided; document is a procedural directive regarding PFAS sample submission deadlines and remediation plan response timeline.
2021-11-16 · Arbor Hills Remediation Area · procedural · routine
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GFL submitted an NPDES Schedule of Compliance form and a 2021 Notice of Intent to Discharge for the Arbor Hills Remediation Area under permit MIS210766 on November 16, 2021. This is a routine procedural filing with no specific measurement data or violation claims included.
Key data point: No specific factual readings or claims in this document; it is a procedural submission cover sheet.
2021-11-16 · Arbor Hills Remediation Area · procedural · routine
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This is a Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area for October 2021, covering water quality parameters at the final effluent point. The report documents permitted limits and monitoring requirements for suspended solids, biochemical oxygen demand, ammonia nitrogen, phosphorus, arsenic, mercury, selenium, temperature, pH, and dissolved oxygen. The facility reported "No Discharge" for the monitoring period.
Key data point: No discharge was reported for October 2021; the document contains permit limits and monitoring parameters but no actual measured effluent readings are provided in the data tables.
2021-11-16 · Arbor Hills Remediation Area · procedural · routine
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Golder Associates notifies the Michigan Department of Environmental Quality of an intent to commence discharge operations at the Arbor Hills Landfill remediation area (Permit MI0045713) effective December 1, 2021, and commits to confirming compliance with permit limits prior to start-up.
Key data point: No specific factual readings or violations stated; this is a procedural notice of intent to discharge with a start date of December 1, 2021.
2021-11-10 · Arbor Hills Landfill · evidence · notable
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EGLE issued a violation notice to Green for Life for failures in the landfill gas collection and flaring system at Arbor Hills Landfill during multiple 2021 plant shutdown events. The backup flare system was unable to capture and combust gas at adequate rates during AHE outages, resulting in landfill gas shortfalls of 1,105 to 1,782 scfm and contributing to nearby odor complaints.
Key data point: Landfill gas shortfalls of 1,105–1,782 scfm during AHE plant shutdowns (April, August, October 2021); candlestick flare observed not operating on October 19, 2021 at 7 pm despite company data claiming 5,000 scfm operation.
2021-11-10 · Arbor Hills Landfill · procedural · routine
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Arbor Hills Landfill responds to an EGLE Violation Notice dated November 10, 2021, challenging two alleged violations: (1) that the gas control system is not designed to handle maximum expected gas flow, and (2) that Flare 391 failed to start during an October 19–20 plant outage. The operator disputes both allegations, arguing that flare capacity (11,200 scfm) exceeds current gas generation (approximately 10,000 scfm) and that Flare 391 was intentionally disabled due to a malfunctioning flow meter, not a failure to operate.
Key data point: Combined flare capacity at Arbor Hills 11,200 scfm (as determined by stack test); landfill currently generating approximately 10,000 scfm; alleged violations October 19–20, 2021.
2021-11-10 · Arbor Hills Landfill · evidence · routine
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EGLE Air Quality Division staff observed a scheduled NOx emissions stack test on Solar Turbine 4 at Arbor Hills Energy (Section 3) on November 10, 2021. The facility was operating at steady state with GT4 at 4.7 MW (rated 5.2 MW), and landfill gas samples were collected via Tedlar bag and Draeger tube methods. The inspector noted mild to moderate landfill gas odors at multiple locations on site, including at the GT4 stack base and near the treatment system, and documented that AHE is in escalated enforcement with EPA and EGLE for ongoing SO2 limit exceedances.
Key data point: H2S Draeger tube readings 350–400 ppm range across three test runs; first run read @390 ppm H2S. NOx 28.9 ppm observed at 11:52 AM (below limit); SO2 23.6 ppm (above limit). Landfill gas odors intermittent and strong at GT4 stack base and moderate in area between treatment and turbine buildings.
2021-11-10 · Arbor Hills Landfill · AQD Violation Notice · Source: EGLE nSITE AQD Document Mirror (compliance action 24752468; doc_id -4806871774930027183)
2021-11-10 · Arbor Hills Landfill · opinion · Source: Wayne County Circuit Court filing, Case No. 21-015618-CB
2021-11-01 · Arbor Hills Remediation Area · procedural · notable
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EGLE's Water Resources Division reviewed GFL's remediation plan for PFAS-contaminated ponds at Arbor Hills Landfill resulting from a 2016 fire at an adjacent recycling facility. The agency found that Pond 1 and Pond 2 contain elevated PFAS (particularly PFOS) in wastewater that violates Part 121 regulations and must be removed by specified deadlines, with additional groundwater monitoring required.
Key data point: Violation Notice VN-011821 issued June 14, 2021, for unauthorized discharge of PFOS-contaminated storm water to unnamed tributary to Johnson Drain; Pond 2 prioritized for remediation due to higher PFOS concentration; remediation schedule due to EGLE by December 1, 2021.
2021-11-01 · Arbor Hills Remediation Area · procedural · routine
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This document appears to be improperly formatted or incomplete; it contains only a fragment ('5 Milk') with no substantive environmental, regulatory, or measurement content related to Arbor Hills Landfill or any violation.
Key data point: No specific factual claim or data point can be extracted from this fragment.
2021-11-01 · Arbor Hills Remediation Area · procedural · notable
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EGLE issued a regulatory response to GFL Environmental's remediation plan for PFAS-contaminated ponds at Arbor Hills Landfill resulting from a 2016 fire at an adjacent recycling facility where aqueous film-forming foam (AFFF) was deployed. The agency found that Pond 1 and Pond 2 contain wastewater with elevated PFAS (particularly PFOS) that must be removed by December 1, 2021, and required GFL to submit a remediation schedule and conduct additional groundwater and surface water monitoring.
Key data point: Pond 1 and Pond 2 contain elevated levels of PFOS; remediation required by December 1, 2021; no specific concentration values stated in this response letter.
2021-10-26 · Arbor Hills Landfill · evidence · notable
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An EGLE Air Quality Division evaluation from October 2021 documents a non-compliance finding at Arbor Hills Landfill based on an odor complaint investigation and flare data review. The investigation revealed that the landfill's flare system was not operating properly during energy plant downtime, with gas burned by the flares significantly less than what the energy plant had been burning, indicating potential excess gas escape. The evaluation cites NESHAP AAAA regulatory violations related to inadequate control device backup during operational disruptions.
Key data point: Flare system burning significantly less gas than the energy plant prior to its shutdown, indicating gas escape and non-compliance with NESHAP AAAA; October 26, 2021 evaluation.
2021-10-21 · Arbor Hills Remediation Area · procedural · routine
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The document provided contains insufficient information to classify. The text 'Site' (dated 2021-10-21) and '5 Milk' do not constitute a substantive regulatory, operational, or monitoring document related to Arbor Hills Landfill.
Key data point: No specific factual data, measurements, or regulatory claims are present in the document.
2021-10-20 · Arbor Hills Landfill · evidence · urgent
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This Full Compliance Evaluation (FCE) covers Arbor Hills Landfill for the period September 24, 2020 to September 24, 2021 and documents the facility's compliance status as MAJOR. The report details numerous regulatory activities including inspections, WOI (Wells of Interest) bimonthly reports tracking elevated-temperature wells, odor complaint investigations, and stack testing of the energy plant. The facility reported compliance overall, though several notable violations and non-compliance events are recorded, particularly related to SO2 exceedances in the turbine testing and subsurface oxidation events at Well 312.
Key data point: Well 312 exhibited 171.6°F (measured, Nov/Dec 2020) with elevated CO ~200 ppm, suggestive of subsurface oxidation; exploratory drill found evidence of charring; well shut down 12/16/20. Additionally, 22 wells held active HOV (Higher Operating Value) temperature waivers as of May 2021.
2021-10-10 · Arbor Hills Landfill · evidence · notable
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A passive vent from a condensate sump measured methane at 129,000 ppm and hydrogen sulfide at greater than 50 ppm. These are emissions from subsurface landfill gas, indicating active biogas generation. The readings suggest potential air quality concerns and ongoing landfill gas management issues.
Key data point: Methane 129,000 ppm and H2S >50 ppm measured at passive vent from condensate sump, 2021-10-10.
2021-10-10 · 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.
A methane survey map from EGLE dated October 2021 showing the spatial distribution of methane concentrations around the Arbor Hills Landfill, with red-highlighted areas indicating readings above 100 ppm.
Key data point: Methane levels above 100 ppm detected at multiple perimeter locations, October 2021.
2021-10-10 · 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.
An EGLE document identifying locations where methane concentrations exceeded 500 ppm using red triangles on a map or chart. The document provides spatial information about elevated methane readings at or near the Arbor Hills Landfill site.
Key data point: Methane concentrations exceeded 500 ppm at multiple perimeter locations (exact well IDs and dates not specified in title/header).