2026-06-15 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
GFL Environmental requests a pre-application meeting with EGLE regarding remediation of PFOS contamination in a 3.78-acre wetland at Arbor Hills Landfill. The contamination resulted from a November 2016 fire at an on-site recycling facility that was extinguished using AFFF foam containing PFOS. GFL proposes to dewater, excavate impacted soils to 1.5–2 feet, fill with clean material to 5 feet, and restore the site to non-wetland conditions while providing mitigation elsewhere.
Key data point: PFOS contamination in unnamed wetland at Arbor Hills Landfill from November 20, 2016 AFFF fire-suppression discharge; 3.78-acre impact footprint proposed for excavation and infill remediation.
2026-06-12 · Arbor Hills Landfill · procedural · routine
The Michigan Department of Environment, Great Lakes, and Energy (EGLE) Air Quality Division issued a procedural records request to GFL Environmental (operator of Arbor Hills Landfill, SRN N2688) on June 12, 2026, in advance of a Fiscal Year 2026 Full Compliance Evaluation (FCE) inspection. The request covers the 12-month period from June 2025 through May 2026 and seeks documentation across multiple regulatory units including asbestos receipts, waste in place, NMOC emissions, fugitive dust control, leachate reports, hydrogen sulfide levels, flare operations, and gas-combustion emissions.
Key data point: No specific quantitative readings provided. This is a records request notice scheduling an inspection period (June 2025–May 2026) and listing document categories to be reviewed.
2026-06-11 · Arbor Hills Landfill · procedural · notable
EGLE Air Quality Division inspector Diane Kavanaugh Vetort inquires about the status of required enclosed flare stack testing at Arbor Hills Landfill (SRN N2688). The last test was conducted December 19, 2019; stack testing is required every 20 calendar months, meaning testing should have been completed by December 2024. The inspector notes difficulty locating test protocol/results in MiEnviro and requests documentation from GFL/ADS.
Key data point: Last enclosed flare stack test December 19, 2019; required testing deadline December 2024 (20-month interval); no test results readily found in regulatory database as of June 2026.
2026-06-11 · Arbor Hills Remediation Area · procedural · routine
GFL Environmental notified the Michigan Department of Environment, Great Lakes, and Energy on June 10, 2026 that Arbor Hills Landfill has changed its certified stormwater operator effective May 1, 2026. The new ISW Certified Operator is Addam Claes (Certification No. I-23183). This is a routine administrative notification of personnel change.
Key data point: New certified stormwater operator Addam Claes (Cert. No. I-23183) effective May 1, 2026.
2026-06-10 · Arbor Hills Remediation Area · procedural · routine
This is a Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area covering May 2026. The facility reported "No Discharge" for all monitoring periods, meaning no effluent was released during the month. The DMR includes permit requirements for flow, suspended solids, biochemical oxygen demand, ammonia nitrogen, phosphorus, cyanide, mercury, PFOS/PFBS/PFOA, temperature, pH, dissolved oxygen, and visual outfall observations.
Key data point: No Discharge reported for May 2026; treatment pond discharge (Limit Set 001A) recorded no measurable effluent release.
2026-06-09 · Arbor Hills Remediation Area · evidence · routine
This is a routine monthly Discharge Monitoring Report (DMR) for April 2025 from Arbor Hills Remediation Area (landfill treatment pond discharge, Permit MI0045713). The report documents daily and summary measurements of flow, suspended solids, nutrients, mercury, PFAS compounds, temperature, pH, and dissolved oxygen, all of which appear to remain within permitted limits or below detection thresholds.
Key data point: Effluent temperature ranged from 43.6°F to 64.4°F during April 2025; maximum reading 64.4°F on 4/30/2025 (Final Effluent). PFAS detected: PFOS 0.0019 ug/L, PFOA 0.0074 ug/L, PFBS 0.011 ug/L (4/17/2025).
2026-06-09 · Arbor Hills Remediation Area · evidence · routine
Arbor Hills Landfill's January 2026 Discharge Monitoring Report shows a treatment pond system that operated intermittently from January 5–20 due to extreme cold, with minimal discharge on January 29 to collect required samples. Most analytes remained below permit limits; PFAS compounds (PFOS, PFBS, PFOA) were reported in the 0.0012–0.0084 µg/L range, and temperature ranged 39.5–42.1°F in final effluent.
Key data point: PFOS: 0.0012 µg/L, PFBS: 0.0084 µg/L, PFOA: 0.0080 µg/L (all measured, January 29, 2026). Permit requires PFAS to be reported; no exceedances documented.
2026-06-09 · Arbor Hills Remediation Area · evidence · routine
This is a daily Discharge Monitoring Report (DMR) for April 2026 from Arbor Hills Remediation Area covering treatment pond effluent parameters including flow, suspended solids, biochemical oxygen demand, nutrients, metals, and PFAS compounds. All measured parameters remained below permit limits during the sampling period, and the discharge was shut down after April 30, 2026.
Key data point: Maximum monthly temperature: 70.1°F (April 14, 2026); all other parameters within limits; discharge ceased April 30, 2026.
2026-05-18 · Arbor Hills Remediation Area · evidence · routine
This is a routine April 2026 Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area treatment pond outfall (Permit MI0045713 v6.0). The report documents daily monitoring of flow, suspended solids, biochemical oxygen demand, nutrients, mercury, PFAS compounds, temperature, pH, and dissolved oxygen. GFL certified that all measured parameters remained within permit limits; the discharge was shut down after April 30, 2026.
Key data point: No permit exceedances or violations reported. Treatment pond discharge temperatures ranged 46–70°F; all TSS, CBOD5, ammonia, and mercury measurements were below maximum daily limits.
2026-05-13 · Arbor Hills Remediation Area · evidence · routine
This is a Trace Analytical Laboratories analytical report (nForm Document) dated May 13, 2026, for a PFAS Master project (26A1200) conducted for Metiri Group - Holt. The document consists of 36 pages of laboratory analysis using EPA 1633 methodology for PFAS detection in water samples, with analyses performed on February 9, 2026. The provided excerpt shows cover pages and QC (quality control) sample tracking data including blanks, LCS (lab control standards), duplicates, and MMRL check samples, but no actual sample results or quantitative PFAS readings are visible in the keyword-matched pages provided.
Key data point: Document is a 36-page PFAS laboratory analysis report; keyword-matched pages show only QC tracking and batch information with no specific PFAS concentration readings or sample identifications visible.
2026-05-13 · Arbor Hills Remediation Area · evidence · routine
This document is a Trace Analytical Laboratories laboratory analysis report (Project 26D0621, filed May 13, 2026) for a PFAS Master study commissioned by Metiri Group – Holt. The provided excerpts show only cover page and header repetition with no substantive analytical data, measurements, or results visible in the keyword-matched pages provided. The full 64-page report content is referenced as being available in a Google Drive folder but is not included in this submission.
Key data point: No specific factual data points are extractable from the pages provided; the document appears to be a laboratory report cover and administrative headers without visible analytical results or measurements.
2026-05-13 · Arbor Hills Remediation Area · evidence · notable
This document is a pair of analytical laboratory reports from Trace Analytical Laboratories and Metiri Group-Holt dated February 12-13, 2026, analyzing wastewater samples from Arbor Hills Landfill Outfall 001A. The first report detects cyanide at 0.0021 mg/L; the second, a comprehensive PFAS analysis (EPA 1633 method) of a water sample collected January 29, 2026, identifies multiple per- and polyfluoroalkyl substances including PFBA (64 ng/L), PFPeA (42 ng/L), PFHxA (39 ng/L), PFOA (8.0 ng/L), PFBS (8.4 ng/L), and others, with most heavy-chain PFAS not detected.
Key data point: PFAS detected in Outfall 001A wastewater, January 29, 2026: PFBA 64 ng/L, PFPeA 42 ng/L, PFHxA 39 ng/L, PFOA 8.0 ng/L, PFBS 8.4 ng/L; Cyanide (Available) 0.0021 mg/L.
2026-05-13 · Arbor Hills Remediation Area · evidence · routine
This is a quarterly NPDES analytical report from Trace Analytical Laboratories dated April 30, 2026, submitted to GFL Environmental for the Arbor Hills Landfill. The report contains PFAS (per- and polyfluoroalkyl substances) analysis results from wastewater samples collected on April 10, 2026, from Outfall 001A, including grab samples, field duplicates, field blanks, and trip blanks. Several PFAS compounds were detected at low levels (PFBA, PFPeA, PFHxA, PFHpA, PFOA, PFBS, and PFHxS), with most other analytes non-detected.
Key data point: Outfall 001A wastewater samples from April 10, 2026 show detectable PFAS: PFBA 45 ng/L, PFPeA 26 ng/L, PFHxA 23 ng/L, PFOA 4.7 ng/L, and PFBS 4.8 ng/L.
2026-05-13 · Arbor Hills Remediation Area · evidence · notable
Arbor Hills Remediation Area submitted NPDES-mandated PFAS monitoring reports for treated wastewater effluent from Outfall 001A covering samples from January 29, 2026 and April 9, 2026. The facility analyzed 28+ PFAS analytes using EPA Method 1633 and reported results ranging from non-detect to 64 ng/L, with PFBA (64 ng/L on 01/29/2026) and PFPeA (42 ng/L on 01/29/2026) among the highest measured values.
Key data point: PFBA detected at 64 ng/L in Outfall 001A effluent on 01/29/2026; PFOA at 8.0 ng/L (01/29/2026) and 4.7 ng/L (04/09/2026); multiple other PFAS compounds detected across both sampling events.
2026-04-30 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
Arbor Hills Landfill, through its consultant CEC, submitted a work plan to EGLE for sampling surface water and sediment in the South Wetland, which was contaminated by PFAS from firefighting foam (AFFF) used in November 2016. The sampling is designed to characterize contamination levels to support a Joint Permit Application for wetland removal and regrading, with samples to be analyzed for PFAS, PAHs, heavy metals, BOD, and TSS.
Key data point: South Wetland impacted by PFAS from AFFF application November 2016; removal intended to eliminate source of downstream PFAS detections.
2026-04-28 · Arbor Hills Landfill · procedural · routine
GFL's Antonio Testa responds to a PEAS odor complaint (4-27-26) reporting a burning plastic/rubber smell near Ridge and Powell, approximately 2 miles from Arbor Hills. Testa inspected the area the following morning, found no odors, and argues that wind direction (SE-SSE, gusting 5–6 mph) was blowing toward the landfill from the complaint location, implying the landfill was not the source.
Key data point: Wind direction 4-27-26 evening primarily SE-SSE (142.5° to 162.8°), gusting 5–6 mph, toward the landfill from complaint location 2 miles away; no odors detected on morning inspection.
2026-04-21 · Arbor Hills Landfill · procedural · notable
Green for Life (GFL) filed a 40 CFR Part 61 Asbestos Notification of Intent to Disturb Waste for Arbor Hills Landfill on April 21, 2026, planning to excavate asbestos-containing waste between July 1 and December 31, 2026. The excavation is associated with GCCS Construction work within the landfill solid waste boundary, with dust control via water spray.
Key data point: Excavation of asbestos-containing waste planned July 1–December 31, 2026, within landfill solid waste boundary at 42.40636, -83.55059; dust control via water spray.
2026-04-14 · Arbor Hills Remediation Area · evidence · routine
This is a monthly Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area (Permit MI0045713 v6.0) covering March 2026. The report documents daily monitoring of treatment pond discharge across multiple parameters including flow, suspended solids, biochemical oxygen demand, ammonia nitrogen, phosphorus, cyanide, mercury, PFAS compounds, thermal discharge, temperature, pH, and dissolved oxygen. All reported measurements appear to fall within or below permit limits.
Key data point: Treatment pond discharge temperature ranged from 41.3°F to 62.2°F during March 2026, with a maximum daily reading of 62.2°F on 3/31/2026; all other monitored parameters (TSS, CBOD5, ammonia, phosphorus, cyanide, mercury, PFOS, PFBS, PFOA) were either below detection limits or within permitted maxima.
2026-04-07 · Arbor Hills Landfill · procedural · routine
EGLE Air Quality Division issued an approval letter for renewal of Higher Operating Value (HOV) temperature waivers for Arbor Hills Landfill (N2688). The document is a transmittal notification of the waiver renewal decision. No specific measurements or conditions are detailed in the text provided.
Key data point: No specific factual reading or measurement given in the transmittal; document confirms HOV waiver renewal approval but does not state which wells, temperatures, or dates are covered.
2026-04-07 · Arbor Hills Landfill · evidence · notable
An EGLE air quality inspector conducted a compliance evaluation of Arbor Hills Landfill on April 1, 2026, and observed significant fugitive dust track-out at multiple locations around the facility, particularly at the Napier Road entrance and along 6 Mile Road. No odors were detected during the inspection. The inspector documented the observations to GFL and warned that continued significant dust violations could result in a Letter of Violation.
Key data point: Significant fugitive dust track-out observed at Napier/6 Mile intersection and along perimeter roads, April 1, 2026; no odors detected; GFL notified and claimed corrective action.
2026-04-02 · Arbor Hills Landfill · procedural · notable
EGLE's Air Quality Division approves a two-year extension of Higher Operating Value (HOV) temperature waivers for 16 Wells of Interest (WOI) at Arbor Hills Landfill, effective until May 1, 2028. The waivers permit operation above the MACT limit of 145°F, with the highest requested temperature at 180°F for well AHW272R4. AHL will submit monthly WOI Status Reports on a semi-annual basis with specific reporting deadlines.
Key data point: 180°F requested for well AHW272R4 — 35°F above MACT limit of 145°F; 16 WOI wells approved for HOV waiver extension through May 1, 2028.
2026-04-01 · Arbor Hills Landfill · procedural · notable
Arbor Hills Landfill, Inc. is requesting a 2-year extension of higher operating values (HOVs) for temperature at 16 Wells of Interest (WOI), with approved ceiling temperatures ranging from 150°F to 180°F. The request includes detailed gas extraction well monitoring data from January 2025 through March 2026, documenting measured temperatures, methane, CO2, and oxygen levels at multiple well locations.
Key data point: Well AHW272R4 requested at 180°F (permitted limit); measured temperatures across 16 WOI wells ranging from 55°F to 139°F as of March 2026, with no measured readings exceeding the 165°F downhole-profile trigger threshold.
2026-04-01 · Arbor Hills Landfill · procedural · routine
GFL is requesting a 2-year renewal of the Higher Operating Value (HOV) waiver for Arbor Hills Landfill's Wells of Interest (WOI) monitoring regime. The submission was filed on 2026-04-01 as compliance report HQM-G2P4-29Q57 with an attached detailed request document.
Key data point: No specific factual readings or measurements are stated in the coversheet; the document appears to be a procedural submission notice only.
2026-04-01 · Arbor Hills Remediation Area · procedural · routine
This is a reissuance application for NPDES Industrial/Commercial Permit MI0045713 for Arbor Hills Landfill Incorporated's remediation area. The facility operates a groundwater treatment system consisting of a gradient control well (GC-1R), an aeration ditch, and two aeration ponds that discharge treated groundwater to an unnamed tributary of Johnson Drain. The application underwent three revisions and multiple EGLE correction requests addressing facility address, coordinates, contact information, and discharge classifications.
Key data point: Maximum authorized daily discharge flow rate: 0.1 MGD (million gallons per day) from outfall 001, discharging 24 hours/day for approximately 151 days per year to unnamed tributary of Johnson Drain.
2026-03-31 · Emerald RNG · procedural · routine
This is a Malfunction Abatement and Preventative Maintenance (PM/MAP) Plan for Emerald RNG LLC's facility at Arbor Hills Landfill, prepared in March 2026. The plan describes monitoring procedures, corrective actions for malfunctions, and maintenance schedules for the flare system, gas treatment equipment, and combustion chamber. It includes operational protocols for the candlestick flare and detailed setpoint documentation.
Key data point: TOX Combustion Chamber operating range ≥1,400°F with continuous temperature monitoring at least once per 15 minutes; flare setpoints and maintenance procedures documented.
2026-03-31 · Emerald RNG · (unprocessable source) · skipped
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2026-03-31 · Emerald RNG · procedural · routine
Emerald RNG LLC responds to EGLE's formal request for details on a methane-recording device malfunction that caused a long-duration ROP deviation affecting actual emissions. The company explains that a coupling leak in the sample supply line diluted methane readings, implemented corrective actions (coupling repair, monthly verification checks, new SCADA alarm), and updated its PM/MAP plan to prevent recurrence.
Key data point: Methane recording device malfunction caused by sample-line coupling leak leading to inaccurate (diluted) methane readings; device repaired and corrective measures implemented including monthly verification checks and low-methane SCADA alarm.
2026-03-26 · Arbor Hills Landfill · procedural · notable
GFL responds to EGLE's review comments on the 2025 Semiannual Consent Judgment report, clarifying that wells 327 and 336 had corrective actions completed in November 2025 but were erroneously listed twice in the submission table. For well 440R, GFL explains that a pump installation attempt on 10/23/2025 failed due to an obstruction and pump entrapment, and the next step is to evaluate the well for possible replacement.
Key data point: Well 440R: pump installation attempt failed 10/23/2025 due to obstruction and stuck pump; well replacement under evaluation (Q4 2025 CJ Report, Section 5.3(B)).
2026-03-25 · Arbor Hills Remediation Area · procedural · routine
Arbor Hills Landfill Incorporated submitted a reissuance application for NPDES Industrial/Commercial Permit MI0045713, covering a groundwater remediation system that discharges treated groundwater to an unnamed tributary of Johnson Drain. The application underwent corrections for address discrepancies, facility location coordinates, and clarifications on discharge flow rates and treatment methods.
Key data point: Maximum authorized daily discharge flow: 1.0 MGD requested (current permit: 0.1 MGD); discharge occurs 24 hours per day, 151 days per year to unnamed tributary of Johnson Drain.
2026-03-24 · Arbor Hills Remediation Area · procedural · routine
Arbor Hills Landfill Incorporated submitted a reissuance application for NPDES Industrial/Commercial permit MI0045713 on March 24, 2026. The submission describes a groundwater remediation system discharging treated water to an unnamed tributary of Johnson Drain, with corrections requested by the state on facility address, contact information, discharge type characterization, and in-situ bioremediation confirmation.
Key data point: No specific factual readings or measured violations are stated; document is an administrative permit reissuance form with correction requests.
2026-03-23 · Arbor Hills Remediation Area · procedural · routine
This document is an NPDES permit reissuance application review checklist for Arbor Hills Remediation Area (Permit No. MI0045713), filed March 23, 2026. The application review confirms administrative completeness for discharge monitoring, including analytical data for conventional and toxic pollutants, PFAS questions, and water treatment additives. Most required submittals were included, with laboratory reports previously uploaded to the MiEnviro Portal.
Key data point: No specific measured readings or factual environmental data are stated in this checklist. This is a procedural review form confirming application completeness.
2026-03-20 · Arbor Hills Remediation Area · procedural · routine
Arbor Hills Landfill, Inc. submitted a reissuance application for its NPDES Industrial/Commercial permit (MI0045713) on March 9, 2026, which was administratively reviewed by EGLE on March 20, 2026. The application was found complete with all required submittals, including analytical data previously uploaded to MiEnviro, and covers groundwater cleanup discharge with PFAS monitoring currently included in the permit.
Key data point: PFAS is present at the facility and monitoring is currently included in the permit; groundwater is contaminated and being treated via in-situ bioremediation and chlorination.
2026-03-13 · Arbor Hills Remediation Area · evidence · routine
This is a February 2026 Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area treatment pond (Permit MI0045713 v6.0). The facility reported daily effluent monitoring for flow, suspended solids, biochemical oxygen demand, ammonia nitrogen, phosphorus, cyanide, mercury, PFOS/PFBS/PFOA, temperature, pH, and dissolved oxygen. No discharge occurred February 1–15; discharge began February 16.
Key data point: Treatment pond outfall temperature readings: 46.8°F (Feb 17), 42.0°F (Feb 18), 43.5°F (Feb 19), 35.0°F (Feb 24), 44.3°F (Feb 25), 43.3°F (Feb 26). All parameters reported below permit limits during the discharge period.
2026-03-09 · Arbor Hills Remediation Area · procedural · routine
Arbor Hills filed a Groundwater Discharge Permit Application (NPDES MI0045713) describing the remediation system including lined aeration ditches and two ponds with treatment and outfall infrastructure. The document presents the technical flow schematic and system configuration for groundwater treatment. This is a procedural permit filing with no specific measured data or violation findings.
Key data point: No specific factual readings or measured values provided; this is a permit application schematic document.
2026-03-09 · Arbor Hills Remediation Area · procedural · routine
EGLE approved Arbor Hills' October 2021 request to use Vitastim Nitrifiers (a bacterial augmentation product by Aquafix Inc.) as a water treatment additive in its NPDES-permitted discharge (Outfall 001). The product would be dosed at 0.0 mg/L discharge concentration into an unnamed tributary of Johnson Drain, 7 days/week from December through March. Approval was granted because the proposed dosage and discharge concentration fall below Water Quality-Based Effluent Limits and the product appears on the Acceptable Michigan Bacterial Augmentation Product List.
Key data point: Vitastim Nitrifiers approved at 0.0 mg/L discharge concentration, dosing rate 1 gal/day for 10 days into 4,000,000-gallon pond (0.125 ppm nitrafix concentration), Outfall 001 to Johnson Drain tributary, NPDES MI0045713, decision date 3/14/2022.
2026-03-09 · Arbor Hills Remediation Area · procedural · routine
This is a site plan or engineering diagram for Arbor Hills Landfill showing property boundaries, infrastructure (slurry wall, aeration ditch, gradient control pump), and receiving water features. The document appears to be a technical drawing filed on 2026-03-09 with no stated data or violation content.
Key data point: No specific factual readings or claims; this is a legend and scale diagram without quantitative environmental measurements.
2026-03-09 · Arbor Hills Remediation Area · procedural · routine
This document is a technical schematic/engineering drawing depicting groundwater treatment infrastructure, including valve pits, treatment buildings, ponds, and associated piping systems at what appears to be an industrial or remediation facility. The drawing shows mechanical details for water flow control and treatment processes but contains no legible performance data or measurements relevant to landfill operations or environmental compliance.
Key data point: No specific factual readings or compliance data are extractable from this document; it is an engineering schematic with largely illegible text and mechanical diagrams.
2026-03-09 · Arbor Hills Remediation Area · evidence · routine
Trace Analytical Laboratories analyzed two wastewater samples (composite and grab) collected from Outfall-001A at the Arbor Hills Landfill on December 4, 2025. The samples were tested for volatile organic compounds, ammonia, total suspended solids, biochemical oxygen demand, phenolics, and cyanide using EPA-approved methods. All volatile organic compounds were below detection limits; cyanide (available) was detected at 2.1 µg/L.
Key data point: Cyanide (available) measured at 2.1 µg/L in Outfall-001A Grab sample, collected 12/04/25.
2026-03-09 · Arbor Hills Remediation Area · evidence · routine
Trace Analytical Laboratories report dated December 16, 2025 presenting wastewater analytical results from Outfall-001A (composite and grab samples collected December 4, 2025) for GFL Environmental's Arbor Hills Landfill NPDES permit. The analysis covers volatile organic compounds, ammonia, total suspended solids, biochemical oxygen demand, phenolics, and cyanide using EPA-approved methods with quality control validation.
Key data point: Cyanide (Available) measured at 2.1 ug/L in Outfall-001A grab sample collected 2025-12-04; all volatile organic compounds tested below detection limits; ammonia 0.053 mg/L.
2026-03-09 · Arbor Hills Remediation Area · evidence · notable
This is a PFAS analytical report for a wastewater sample (Outfall-001A) collected from GFL Environmental's Arbor Hills Landfill on December 4, 2025, and analyzed by Metiri Group using EPA Method 537M. The report documents the presence of multiple PFAS compounds including PFBA (100 ng/L), PFPeA (44 ng/L), PFHxA (40 ng/L), PFBS (10 ng/L), and others, with quality assurance protocols met.
Key data point: PFBA 100 ng/L, PFPeA 44 ng/L, PFHxA 40 ng/L detected in Outfall-001A wastewater sample, December 4, 2025.
2026-03-09 · Arbor Hills Remediation Area · evidence · routine
This is a wastewater analytical report for Arbor Hills Landfill (GFL-NPDES 5092) covering a composite sample from Outfall 001A collected December 3, 2025. The laboratory analysis tested for metals, semi-volatile organic compounds, pesticides/PCBs, and standard wet-chemistry parameters using EPA and Standard Methods. Most analytes were below detection limits or within expected ranges, with no exceedances of MCLs reported.
Key data point: No specific factual violation or exceedance detected; all measured values either below reporting limits or within expected ranges for wastewater outfall monitoring.
2026-03-09 · Arbor Hills Remediation Area · evidence · routine
This is a Certificate of Analysis from Trace Analytical Laboratories dated December 15, 2025, reporting results from a wastewater composite sample (Outfall 001A) collected December 3, 2025, for GFL Environmental's Arbor Hills Landfill NPDES permit. The analysis includes metals, semi-volatile organic compounds, pesticides/PCBs, and wet chemistry parameters, with nearly all analytes detected below reporting limits or within acceptable ranges. Key measured detections include Boron (96 µg/L), Calcium (30,000 µg/L), Magnesium (26,000 µg/L), Nickel (9.2 µg/L), Ammonia as N (0.067 mg/L), and Total Phosphorus (0.022 mg/L); most regulated compounds showed non-detectable results.
Key data point: Outfall 001A composite sample (12/03/2025): Nickel 9.2 µg/L detected; most metals, semi-volatiles, and pesticides below detection limits. No temperature, CO, or oxygen readings present in this wastewater analytical report.
2026-03-09 · Arbor Hills Remediation Area · procedural · routine
This document describes the current groundwater remediation system at Arbor Hills, consisting of a gradient control well (GC-1R), aeration ditch, and two holding ponds that treat extracted groundwater before discharge through Outfall 001A between December and April. The document notes that an earlier remediation well field was decommissioned in 2011 and the treatment system was subsequently taken offline with State approval.
Key data point: No specific factual reading or measurement is provided; the document is a system schematic description with no quantitative data.
2026-03-02 · Arbor Hills Landfill · (unprocessable source) · skipped
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2026-03-02 · Arbor Hills Landfill · (unprocessable source) · skipped
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2026-03-02 · Arbor Hills Landfill · procedural · routine
EGLE's Air Quality Division approved GFL's request for a 60-day extension to complete corrective action on well AHW265R3, moving the deadline from approximately March 2026 to April 28, 2026. This is a routine procedural approval of an extension request submitted via the MiEnviro portal on February 27, 2026.
Key data point: Well AHW265R3 corrective action deadline extended to April 28, 2026 (60-day extension approved by EGLE AQD).
2026-02-24 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
GFL's contractors request a pre-application meeting with EGLE on March 2, 2026 to discuss a wetland permit application for the Arbor Hills site. The agenda covers project history (including a 2016 Great Lakes Recycling fire and potential PFOS/AFFF contamination in a wetland-Pond 3 interconnection), required permits under Parts 301 and 303, sediment and soil testing, and a phased timeline for wetland impacts, surface-water pumping/treatment, soils removal, and backfilling.
Key data point: Proposed 6-month timeline for wetland permit application and approval; potential PFOS and AFFF contamination from 2016 Great Lakes Recycling fire linked to Arbor Hills wetland and Pond 3.
2026-02-20 · Arbor Hills Remediation Area · evidence · routine
This is a January 2026 Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area (Permit MI0045713 v6.0), covering treatment pond discharge from the remediation system. The facility discharged during January 5–20, 2026, then shut down due to extreme cold temperatures; minimal discharge occurred on January 29 to collect required samples. All measured parameters remained within permit limits.
Key data point: Measured discharge temperature maximum 42.1°F (Jan 14, 2026); PFOS 1.2 µg/L, PFBS 8.4 µg/L, PFOA 8.0 µg/L; all other water-quality parameters within permit limits.
2026-02-09 · procedural · routine
EGLE's Air Quality Division approved GFL Environmental's request to decommission 20 monitoring wells at Arbor Hills Landfill on February 9, 2026, after a revised submittal dated January 5, 2026. The approval followed clarification of well locations and justifications for retiring wells including TCH7, TCH8, and HW37, which showed reduced effectiveness or instability.
Key data point: 20 wells approved for decommissioning: AH4ETGW1, AHEWHW23, AHEWHW29, AHWTCH06-11, AHWWHW14, 17-19, 28, 31, 36-38, 40-41 (EGLE AQD approval dated 2/9/26).
2026-02-05 · evidence · notable
This is the Q2 2022 Vertical Gas Collection (VGC) Well Liquid Monitoring and Management Report for Arbor Hills Landfill, submitted to EGLE in compliance with Consent Judgment 2020-0593-CE. The report documents liquid level monitoring, pump functionality, and corrective actions across multiple gas extraction wells at both the open AH West (210.5 acres) and closed AH East (131 acres) sections of the landfill.
Key data point: Multiple wells identified with obstructions, stuck pumps, and liquid-level issues; 30 wells in AH West and related wells in AH East added to 2022 construction project scope for replacement or abandonment; numerous pump replacements conducted in Q2 2022 (June 2022).