2022-06-24 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
EGLE issued a Water Resources Protection permit (WRP033733) to GFL Environmental Inc. on June 24, 2022, authorizing permanent impact to 0.44 acres of emergent wetland and temporary impact to 0.03 acres for construction of a natural gas facility and associated infrastructure at Arbor Hills Landfill in Washtenaw County. The permit expires June 24, 2027 and requires all work to comply with attached modified plans and permit terms.
Key data point: 0.44 acres permanent wetland impact; 0.03 acres temporary wetland impact for natural gas facility construction, permit WRP033733, expires June 24, 2027.
2022-06-24 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
EGLE issued Water Resources Protection permit WRP033733 on June 24, 2022, authorizing GFL Environmental to construct a natural gas (RNG) facility at Arbor Hills Landfill, permanently impacting 0.44 acres of emergent wetland and temporarily impacting 0.03 acres. The permit includes detailed conditions for wetland mitigation, erosion control, and construction sequencing, valid for five years through June 24, 2027.
Key data point: 0.44 acres permanent emergent wetland impact; 0.03 acres temporary impact; mitigation requirement of 0.66 emergent credits in Rouge River Watershed or VI.1.2 Ecoregion.
2022-06-24 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
Emerald RNG LLC (on behalf of Arbor Hills Landfill, Inc.) has purchased 0.19 acres of emergent and 0.47 acres of forested wetland mitigation credits from the River Raisin Watershed Wetland Mitigation Bank to partially satisfy permit requirement WRP033733 v.1. The purchase covers wetland impact mitigation required for the Arbor Hills facility at 81-10599 West Five Mile Road in Northville.
Key data point: 0.66 acres of wetland credits purchased (0.19 emergent + 0.47 forested) to partially meet permit WRP033733 v.1 requirements, June 24, 2022.
2022-06-24 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
This letter verifies that Arbor Hills Landfill (via Emerald RNG LLC) purchased 0.66 acres of wetland mitigation credits from the River Raisin Watershed Wetland Mitigation Bank to satisfy permit requirements under EGLE permit WRP033733 v.1 for the Northville site. The purchase includes 0.19 acres of emergent and 0.47 acres of forested wetland credits.
Key data point: Arbor Hills Landfill purchased 0.66 acres of wetland mitigation credits (0.19 emergent, 0.47 forested) under EGLE permit WRP033733 v.1, issued June 24, 2022, valid through June 24, 2027.
2022-06-21 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
EGLE issued a draft wetlands permit (WRP033733) to Arbor Hills Landfill for construction of a natural gas (RNG) facility on the landfill property in Northville, Michigan, authorizing permanent impact to 0.44 acres of emergent wetland and temporary impact to 0.03 acres. The permit requires countersignature by the permittee within 30 days and mitigation through acquisition of 0.66 wetland credits; it is valid for five years once fully executed.
Key data point: 0.44 acres of emergent wetland permanently impacted; 0.03 acres temporarily impacted; 0.66 wetland credits required as mitigation; permit expires 06/24/2027.
2022-06-20 · Arbor Hills Remediation Area · procedural · routine
This is a Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area for May 2022, covering water-quality parameters including suspended solids, biochemical oxygen demand, ammonia nitrogen, phosphorus, arsenic, mercury, selenium, temperature, pH, and dissolved oxygen at the final effluent outfall. The report indicates 'No Discharge' for the month, meaning no wastewater was released during the monitoring period. The document is certified under penalty of law by the permittee's principal executive officer.
Key data point: No Discharge reported for May 2022 at Final Effluent (1); document contains permit requirements and analysis frequencies but no actual measured values are provided in the body of the report.
2022-06-16 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
GFL Environmental requests that the applicant/landowner name on Draft Permit WRP033733 be changed from 'GFL Environmental, Inc.' to 'Arbor Hills Landfill, Inc.' to reflect the correct entity. This is a routine administrative modification to align the permit with the actual landowner.
Key data point: No specific factual data or measurements; this is a procedural request to correct the applicant entity name on a water permit draft.
2022-06-09 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
EGLE issued permit WRP033733 to GFL Environmental for construction of a natural gas facility (RNG plant) at Arbor Hills, authorizing permanent impact to 0.44 acres of emergent wetland and temporary impact to 0.03 acres. The permit requires wetland mitigation through acquisition of 0.66 credits and compliance with erosion control, stabilization, and construction-timing conditions.
Key data point: 0.44 acres of emergent wetland permanently impacted; 0.66 wetland credits required for mitigation; permit issued 2022-06-24, expires 2027-06-24.
2022-06-09 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
EGLE issued GFL Environmental an NPDES permit (MIR117157) on June 8, 2022, authorizing stormwater discharge from construction activities at Arbor Hills Landfill. The authorization expires June 5, 2024, and may be renewed through June 8, 2027, provided the applicant submits a renewal request and an extended Soil Erosion and Sedimentation Control (SESC) permit before expiration.
Key data point: NPDES permit MIR117157 issued June 8, 2022; expires June 5, 2024; renewable through June 8, 2027.
2022-06-09 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
This document is a Resources Individual Permit (WRP033733 v1.0) issued by EGLE on 06/24/2022 for a proposed renewable natural gas (RNG) facility at Arbor Hills West Expanded Sanitary Landfill in Northville, Michigan. The permit includes site plans, wetland delineation maps, and environmental baseline data showing soil types, floodplain zones, and alternative facility locations. The RNG facility will occupy approximately 5.38 acres of permanent disturbance and 2.56 acres of temporary disturbance, with wetland impacts totaling 0.44 acres permanent and 0.03 acres temporary.
Key data point: Proposed RNG facility at 10690 West Six Mile Road with 5.38 acres permanent disturbance and 0.44 acres total permanent wetland impact; permit issued 06/24/2022, expires 06/24/2027.
2022-06-08 · Arbor Hills Remediation Area · procedural · routine
EGLE formally denied GFL's request to discharge Pit Raider, a bacterial augmentation water treatment additive, from the Arbor Hills Remediation Area facility under NPDES Permit MI0045713. The proposed discharge concentration of 11,250 µg/L exceeded the Water Quality-Based Effluent Limit (WQBEL) of 11,000 µg/L developed for the product due to insufficient toxicity data on two of the three bacterial strains.
Key data point: Proposed Pit Raider discharge concentration 11,250 µg/L exceeds WQBEL of 11,000 µg/L; denial issued 2022-06-08.
2022-06-08 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
GFL Environmental submitted a Washtenaw County Soil Erosion & Sedimentation Control (SESC) permit application for construction of a Renewable Natural Gas (RNG) facility at Arbor Hills Landfill. The project covers 7.94 acres total disturbance (5.38 permanent, 2.56 temporary) and will impact 0.44 acres of wetlands, to be compensated at a 1.5:1 ratio. Construction is scheduled spring 2022 through fall 2023, with temporary SESC measures to be removed once soils stabilize.
Key data point: 0.44 acres permanent wetland impact, to be compensated with 0.66 PEM credits at 1.5:1 ratio from nearby mitigation bank.
2022-06-08 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
GFL Environmental Inc. submitted a Notice of Coverage (NOC) for NPDES Storm Water Discharges from Construction Activity on June 8, 2022, for the Arbor Hills facility in Northville, Michigan. The application covers 78 total acres with 7.94 acres of earth disturbance and includes a Soil Erosion and Sedimentation Control (SESC) permit approved by Washtenaw County Water Resources Commission. The project involves stormwater management for construction activity discharging to an unnamed stormwater ditch and retention basin.
Key data point: 7.94 acres of earth disturbance at Arbor Hills site (10599 West Five Mile Road, Northville); SESC permit SESC2022-0164 issued 06/06/2022, expiration 06/05/2024.
2022-06-08 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
This is a soil erosion permit application and site plan for a proposed Renewable Natural Gas (RNG) facility at Arbor Hills West Expanded Sanitary Landfill on West Six Mile Road in Northville, Michigan. The documents include aerial site plans, proposed facility layout, wetland impact assessments (0.44 acres permanent, 0.03 acres temporary), and erosion control measures. The proposed RNG facility occupies approximately 7.94 acres within the limit of disturbance.
Key data point: No specific factual readings or violation data; this is a permitting schematic document with site dimensions and wetland impact acreage only.
2022-06-08 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
Washtenaw County issued a Soil Erosion & Sedimentation Control (SESC) permit (SESC2022-0164) on June 16, 2022, to allow construction of a renewable natural gas facility on the Arbor Hills West Expanded Sanitary Landfill site. The permit authorizes earth changes affecting 7.94 acres, including culverts, driveways, landscaping, and grading, and requires standard sediment and erosion control measures throughout construction and until permanent stabilization.
Key data point: 7.94 acres of permitted ground disturbance for renewable natural gas facility construction at Arbor Hills West, Northville, MI; permit expires June 5, 2024.
2022-06-03 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
EGLE's Water Resources Division issued a draft Individual Permit for Part 303 (Wetlands Protection) authorizing Arbor Hills Landfill to permanently impact 0.44 acres of wetland for construction of a new natural gas facility. The permit requires countersignature and return within 30 days; construction cannot begin until a valid signed permit is held at the site.
Key data point: 0.44 acres of permanent wetland impact authorized for natural gas facility construction, submission HPE-5J85-2NSMP, 30-day countersignature deadline from June 21, 2022.
2022-06-03 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
EGLE issued a water resources permit (WRP033733 v.1) to Arbor Hills Landfill on June 24, 2022, authorizing permanent impact to 0.44 acres of emergent wetland and temporary impact to 0.03 acres through construction of a natural gas facility and associated infrastructure. The permit expires June 24, 2027 and requires mitigation through acquisition of 0.66 wetland credits, compliance with erosion controls, and adherence to multiple conditions including notification requirements and local permit coordination.
Key data point: 0.44 acres of permanent emergent wetland impact authorized; 0.66 wetland credits required for mitigation; permit valid June 24, 2022 to June 24, 2027.
2022-06-03 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
GFL Environmental Inc. filed a Joint Permit Application on June 3, 2022 for construction of a natural gas facility at 81-10599 West Five Mile Road in Northville. The project proposes impacts to 0.47 acres of wetland (primarily a Phragmites monoculture), with 0.44 acres permanent and 0.03 acres temporary, and the EGLE Water Resources Division recommended issuance after finding no feasible alternatives and no threatened/endangered species concerns.
Key data point: 0.47 acres total wetland impact (0.44 permanent, 0.03 temporary); Phragmites monoculture; EGLE recommended issuance with mitigation, no public objections.
2022-05-27 · Arbor Hills Remediation Area · procedural · routine
EGLE's Water Resources Division conducted an April 2022 inspection of Arbor Hills' groundwater treatment system under NPDES Permit MI0045713. The inspection found no visible permit violations, but DMR records review identified four exceedances of ammonia and total suspended solids limits in late 2020 and early 2021, all of which were adequately reported and corrected by the facility.
Key data point: Ammonia exceedance of 9.8 mg/L (permit limit 6.4 mg/L) on 1/1/2021; TSS exceedance of 68.0 mg/L (permit limit 30–38 mg/L) on 4/21/2021; all violations were reported and corrective actions taken.
2022-05-27 · Arbor Hills Remediation Area · procedural · routine
GFL Environmental's site engineer acknowledges receipt of a Compliance Communication from EGLE regarding the Arbor Hills Remediation Area, sent May 27, 2022. The document is a procedural acknowledgment with no substantive technical or violations data.
Key data point: No specific factual reading or claim; this is a receipt acknowledgment only.
2022-05-17 · Arbor Hills Remediation Area · evidence · notable
EGLE's Water Resources Division conducted an April 2022 inspection of Arbor Hills' groundwater treatment system under NPDES permit MI0045713. The inspection found no visible effluent-quality violations, but DMR records review identified ammonia and total suspended solids exceedances in late 2020 and early 2021; GFL's written reports adequately explained causes and corrective actions, so no further action was required.
Key data point: Ammonia exceedance of 9.8 mg/L against 6.4 mg/L permit limit (01/01/2021); TSS exceedance of 68.0 mg/L against 30 mg/L monthly average limit (04/21/2021).
2022-05-16 · Arbor Hills Remediation Area · procedural · routine
This is a Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area covering April 2022. The facility reports on water-quality parameters including suspended solids, biochemical oxygen demand, ammonia nitrogen, phosphorus, arsenic, mercury, selenium, temperature, pH, and dissolved oxygen. The document is a standard regulatory filing with permit number MI0045713 v5.0.
Key data point: No specific measured readings are provided in this DMR; the document is a blank template or summary with only permit limits and sampling frequencies listed, and notation of 'No Discharge: Y' for all four parameter sets.
2022-05-16 · Arbor Hills Remediation Area · procedural · routine
EGLE staff exchanged emails regarding PFOS/PFOA monitoring for the Arbor Hills Remediation Area permit. Brian Zuber reported that PFOS samples from two site ponds ranged from 1.5–3.3 ng/L and discharge samples from December 2021 showed 1.4–1.8 ng/L, concluding that monthly monitoring for PFOS/PFOA would not be necessary for the permit.
Key data point: PFOS levels in site ponds: 1.5–3.3 ng/L; discharge samples (Dec 2021): 1.4–1.8 ng/L. EGLE staff concluded monthly monitoring not necessary.
2022-05-12 · Arbor Hills Remediation Area · procedural · routine
EGLE's Permits Section issued Water Quality-Based Effluent Limits (WQBELs) for reissuance of NPDES permits for Salem Township WWTP and the Arbor Hills Remediation Area, both discharging to Johnson Drain in Washtenaw County. The memo updates conventional parameter limits for CBOD5, ammonia, and dissolved oxygen based on a Streeter-Phelps model and coldwater stream protection standards.
Key data point: No specific factual measurements of actual discharge or water quality readings; document is a regulatory guidance memo setting permitted effluent concentration limits (e.g., Salem WWTP: 10 mg/l CBOD5 daily max May–November; Arbor Hills: 70 mg/l CBOD5 December–March).
2022-05-12 · Arbor Hills Remediation Area · procedural · routine
EGLE proposes to reissue an NPDES Individual Permit (MI0045713) for the Arbor Hills Remediation Area's discharge of treated groundwater to an unnamed tributary to Johnson Drain. The draft permit revises monitoring requirements for multiple parameters including ammonia nitrogen, cyanide, and mercury, with a comment deadline of October 7, 2022.
Key data point: No specific measured readings provided; this is a permit reissuance notice with updated effluent limitations (total mercury final limit: 2.0 ng/l, discharge-specific MDV variance from 1.3 ng/l water quality standard).
2022-05-12 · Arbor Hills Remediation Area · procedural · routine
This is an NPDES Individual Permit (MI0045713) issued August 23, 2022, authorizing Arbor Hills Landfill to discharge 0.1 MGD of treated groundwater from Monitoring Point 001A to an unnamed tributary of Johnson Drain. The permit establishes effluent limits for conventional pollutants (TSS, CBOD5, ammonia, phosphorus), metals (arsenic, selenium, mercury, cyanide), PFOA/PFOS/PFBS (added post-notice), and thermal discharge, with monitoring frequencies ranging from weekly to quarterly.
Key data point: No specific measured readings; this is a permit framework document. It authorizes discharge of 0.1 MGD and requires quarterly monitoring for PFOA, PFOS, and PFBS to evaluate long-term discharge.
2022-05-12 · Arbor Hills Remediation Area · evidence · notable
This NPDES Compliance Evaluation Inspection (CEI) from April 8, 2022 reviewed the Arbor Hills Remediation Area wastewater treatment facility (permit MI0045713), including its A-1d impoundment and C-1b aerated lagoons. The inspection covered site conditions, treatment operations, chemical storage, sampling procedures, and analytical methodology, with all evaluated areas marked satisfactory. Citizens raised concerns about PFAS and leachate breakthrough was noted as a potential issue.
Key data point: Citizens concerned about PFAS; leachate breakthrough noted as unusual condition in treatment system (section 44-45). No specific quantitative readings provided for these concerns.
2022-05-12 · Arbor Hills Remediation Area · procedural · routine
This is the NPDES Individual Permit (MI0045713) authorizing Arbor Hills Landfill to discharge up to 0.1 MGD of treated groundwater from a remediation area to an unnamed tributary of Johnson Drain. The permit, effective January 1, 2023, and expiring October 1, 2026, sets detailed effluent limitations for suspended solids, biochemical oxygen demand, ammonia nitrogen, phosphorus, cyanide, PFOA/PFOS/PFBS, temperature, mercury, pH, and dissolved oxygen, with seasonal discharge restrictions and monitoring requirements.
Key data point: No specific factual readings provided; this is the permit framework document setting permitted limits and monitoring procedures rather than reporting measured values.
2022-05-11 · Arbor Hills Remediation Area · procedural · routine
GFL Environmental (then operating under Advanced Disposal) submitted corporate name-change documentation to EGLE in May 2022 clarifying the facility address for Arbor Hills Remediation Area permits. The email exchanges and attached amendment certificates trace the ownership lineage from Superior through Onyx, Veolia ES, Advanced Disposal, to Arbor Hills Landfill, Inc., with GFL's current office at 10599 W. Five Mile Road, Northville.
Key data point: No specific factual measurements or regulatory violations stated. Document is administrative clarification of corporate name changes and facility addressing for NPDES permit reissuance.
2022-05-11 · Arbor Hills Remediation Area · procedural · routine
An internal EGLE note documenting administrative updates to Arbor Hills Landfill's NPDES permits following a December 2020 change of ownership from Advanced Disposal to GFL. The file records company name changes over two decades and clarifies the correct facility addresses for two permit numbers.
Key data point: No specific factual or technical data; administrative record only.
2022-05-11 · Arbor Hills Remediation Area · procedural · routine
This is a Michigan Department of Licensing and Regulatory Affairs certificate documenting a corporate name change from Advanced Disposal Services Arbor Hills Landfill, Inc. to Arbor Hills Landfill, Inc., effective December 2, 2020. The form is a routine administrative filing showing the amended Articles of Incorporation and registered agent information.
Key data point: No substantive environmental or operational data present. This is a procedural name-change certificate only.
2022-04-28 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
EGLE posted a public notice on April 28, 2022 for a Joint Permit Application (JPA) by GFL Environmental to construct a Renewable Natural Gas (RNG) facility at Arbor Hills Landfill in Northville. The project will permanently impact 0.44 acres of emergent wetland and temporarily impact 0.03 acres, with compensatory mitigation proposed. Public comments were due by May 18, 2022.
Key data point: 0.44 acres permanent emergent wetland impact; 0.03 acres temporary impact from RNG facility construction at 10599 West Five Mile Road, Northville.
2022-04-26 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
GFL Environmental applied in April 2022 for a Michigan wetland permit to construct a Renewable Natural Gas facility at Arbor Hills Landfill, including access roads and culvert installation. The project will permanently impact 0.44 acres of emergent wetland and temporarily impact 0.03 acres, with compensatory mitigation proposed.
Key data point: Permanent wetland impact: 0.44 acres emergent; temporary impact: 0.03 acres emergent at Arbor Hills Landfill, Salem Township, Washtenaw County.
2022-04-25 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
GFL Environmental submitted a Joint Permit Application to construct a Renewable Natural Gas (RNG) facility at Arbor Hills Landfill in Washtenaw County, Michigan. The project will permanently impact 0.44 acres of emergent wetland and temporarily impact 0.032 acres, with mitigation proposed via purchase of 0.66 wetland mitigation bank credits at a 1.5:1 ratio. The application underwent multiple rounds of EGLE correction requests regarding alternatives analysis, wetland impact calculations, and site plan details before final submission on April 25, 2022.
Key data point: Permanent wetland impact of 0.44 acres (emergent) plus temporary impact of 0.032 acres, to be mitigated via 0.66 PEM credits at 1.5:1 ratio from nearby wetland mitigation bank.
2022-04-25 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
GFL Environmental submitted a wetland permit application (JPA HPE-5J85-2NSMP) to EGLE for construction of a Renewable Natural Gas facility at Arbor Hills Landfill. The document is an email chain documenting the administrative review process, including GFL's representation that the proposed Household Hazardous Waste facility will not impact wetlands, and the eventual completion of the MiWaters submission in April 2022.
Key data point: GFL stated it does not anticipate that construction of the Household Hazardous Waste facility will impact any wetlands (April 22, 2022).
2022-04-18 · Arbor Hills Remediation Area · procedural · routine
This is a technical exchange between Ecological Laboratories and Michigan EGLE regarding toxicity testing data for Pit Raider, a water treatment additive proposed for use at a landfill. The correspondence confirms that three products contain identical bacterial components and discusses LC50 (lethal concentration) values for aquatic toxicity assessment.
Key data point: Fathead minnow LC50 calculated as >2500 ppm based on highest tested dose (50mL per 20L); no adverse effects observed at any concentration tested.
2022-04-18 · Arbor Hills Remediation Area · procedural · routine
EGLE denied GFL's request to discharge Pit Raider (a bacterial augmentation product) from Arbor Hills' NPDES Outfall 001 because the proposed discharge concentration on Day 1 (41 mg/L) exceeded the Water Quality-Based Effluent Limits (11,000 µg/L or ~11 mg/L). The facility had requested a 13.63 mg/L average discharge concentration, but supporting calculations revealed higher initial concentrations over a multi-month application period.
Key data point: Pit Raider Day 1 discharge concentration 41 mg/L exceeds WQBEL of 11 mg/L; request denied 2022-03-23.
2022-04-12 · Arbor Hills Remediation Area · procedural · routine
This is a March 2022 Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area (Permit MI0045713 v5.0). The document shows permit requirements and monitoring parameters for final effluent discharge including flow, suspended solids, BOD, ammonia, phosphorus, arsenic, mercury, selenium, temperature, pH, and dissolved oxygen. All reported data fields are marked with '*F' (failure to report) or '*****' (not applicable), indicating no actual measurements were submitted for the month.
Key data point: No specific measured data reported for March 2022—all data fields marked '*F' or '*****', indicating non-reporting or no discharge during the period.
2022-04-06 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
This nForm document presents site plans and environmental resource maps for a proposed Renewable Natural Gas (RNG) facility at the Arbor Hills West Expanded Sanitary Landfill in Northville, Michigan. The document includes topographic, aerial, soil, wetland, floodplain, and elevation data, along with alternative facility location options and wetland impact assessments. The proposed RNG facility would disturb approximately 5.38 acres permanently and 2.56 acres temporarily, with impacts to 0.44 acres of wetlands permanently and 0.03 acres temporarily.
Key data point: Proposed RNG facility footprint: 5.38 acres permanent disturbance, 0.44 acres permanent wetland impact; alternatives evaluated to minimize environmental footprint.
2022-04-06 · Arbor Hills Landfill (Land & Water Interface) · procedural · routine
GFL Environmental submitted a Joint Permit Application (JPA) on April 6, 2022, to construct a Renewable Natural Gas (RNG) facility at the Arbor Hills Landfill in Washtenaw County, Michigan. The project involves permanent impacts to approximately 0.44 acres of emergent wetland and temporary impacts to approximately 0.032 acres, with proposed mitigation through wetland mitigation bank credits at a 1.5:1 ratio.
Key data point: Permanent wetland impact of 0.44 acres (emergent); temporary impact of 0.032 acres. No measured environmental readings provided in this permit application document.
2022-03-28 · Arbor Hills Landfill · procedural · routine
EGLE air quality inspectors identified methane leaks from the landfill gas treatment system roof vents at Arbor Hills in March 2022. The facility operator (Opal Fuels) reported the leaks were caused by faulty Main Compressor Pressure Safety Valves, took corrective actions including removing one compressor offline and sending valves for repair, and implemented weekly methane monitoring.
Key data point: Methane detected leaking from Compressor Vent #3 roof exhaust stack; Main Compressor PSVs identified as cause; #3 MGC brought offline for repairs (March 28, 2022).
2022-03-24 · evidence · routine
EGLE methane survey results are presented in map form dated March 2022, showing spatial distribution of methane concentrations around the Arbor Hills Landfill site. The document provides visual evidence of gas emissions across the perimeter monitoring area. No specific numerical readings are extractable from the map format alone.
Key data point: No specific factual reading; document is a map visualization without stated numerical values.
2022-03-24 · Arbor Hills Landfill · procedural · routine
A technical sketch documenting air flow patterns around Vent #3 at Arbor Hills, submitted by AHE (Arbor Hills Equipment or similar entity) during an EGLE inspection in March 2022. The sketch provides engineering detail on ventilation infrastructure but contains no quantitative measurements or violations.
Key data point: No specific factual readings or violation data present; document is a technical diagram only.
2022-03-24 · Arbor Hills Landfill · procedural · routine
This is a procedural notice documenting an EGLE inspection finding regarding a sewer vent with a carbon filter cap on the SE side of a treatment building at the Arbor Hills Landfill. The document appears to be an inspection record or facility feature notation rather than a substantive findings report. No specific violations, measurements, or detailed findings are provided in the text.
Key data point: No specific factual reading or measurement provided; document identifies only a facility component (sewer vent with carbon filter cap, SE treatment building location).
2022-03-24 · Arbor Hills Landfill · procedural · routine
This document is a brief reference to EGLE involvement regarding Compressor Vent #3 at the Arbor Hills Landfill, filed in March 2022. No substantive factual data, measurements, or regulatory findings are provided in the text.
Key data point: Document contains no specific factual readings or citable claims.
2022-03-24 · Arbor Hills Landfill · evidence · routine
Control Room 1 screenshot from EGLE dated March 24, 2022. Document appears to be an image capture of a monitoring or operational control interface, but the text content is not legible or substantive in the excerpt provided.
Key data point: No specific factual readings or claims are extractable from the legible portion of this document.
2022-03-24 · Arbor Hills Landfill · procedural · routine
This is a partial screenshot from an EGLE (Michigan Department of Environment, Great Lakes, and Energy) control room interface dated March 24, 2022. The document content is incomplete, showing only a header but no substantive data, measurements, or findings.
Key data point: No specific factual reading or data point is present in this document fragment.
2022-03-24 · Arbor Hills Landfill · procedural · routine
This is a screenshot from an EGLE control room interface dated March 24, 2022. The document provides no substantive information, measurements, or data about Arbor Hills Landfill operations or regulatory status.
Key data point: No specific factual reading or data present in the document.
2022-03-22 · Arbor Hills Remediation Area · procedural · routine
EGLE's Water Resources Division reviewed GFL's Updated Remediation Plan for Arbor Hills Landfill and requested that GFL provide a certification statement that Pond 1 does not have reasonable potential to discharge to surface waters of the state, since GFL does not intend to remediate Pond 1.
Key data point: EGLE requires GFL to certify that Pond 1 has no reasonable potential to discharge to surface waters (lakes, wetlands, rivers, streams), as GFL proposes not to remediate it.
2022-03-21 · Arbor Hills Landfill · evidence · notable
EGLE conducted an announced compliance inspection of Arbor Hills Energy LLC (the gas-extraction facility within Arbor Hills Landfill) on March 21, 2022, to verify rerouting of compressor vents and monitor for H2S and methane. The inspection found elevated methane and H2S readings at multiple roof vents on the treatment building, including 1,100–1,100 ppm methane at Compressor Vent #3 and 25,000 ppm methane at a sewer vent, prompting requests for investigation and corrective action within 7 days.
Key data point: Methane readings: 1,100 ppm (Compressor Vent #3), 25,000 ppm (sewer vent #1), and 129,000 ppm (condensate sump passive vent from Oct 2021 survey); H2S readings exceeded 50 ppm at condensate sump and 0.26 ppm at sewer vent #1, March 21, 2022.