Every document the monitor has read for these facilities, newest first. The list runs back to the earliest record on file and updates automatically as new documents come in. Most are EGLE filings; hand-curated public records from other sources are labeled with their source.
2,106 documents · page 1 of 43
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is an EGLE/MAERS-style air emissions compliance form reporting sulfur dioxide stack test results for two landfill gas-fired turbines (EUTURBINE3 and EUTURBINE4) at the facility. All three-run average measured SO2 values are well below their applicable permitted limits under 40 CFR Part 60 Subpart KKKK and Michigan Air Pollution Control Rules.
Key data point: EUTURBINE3 three-run average SO2 stack test result was 0.09 lb/hr, versus a permitted limit of 0.5 lb/hr (test date not stated in excerpt)
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is an online submission form filed with EGLE's MiEnviro Portal confirming that Arbor Hills Energy, LLC (N1504) submitted a stack test report (performed 9/9/2026) along with required certifications and contact information. The actual test report with pollutant data is an attached PDF not reproduced in this cover submission. The form itself contains no emissions results, only administrative and certification details.
Key data point: No specific factual reading is given in this cover submission; it references a stack test performed 9/9/2026 with results in an attached report not shown here.
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a routine NPDES Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area treatment pond discharge (permit MI0045713) covering September 2026. The facility reported 'No Discharge' for the entire month, so no actual effluent samples were measured; only the permit's numeric limits for parameters like TSS, CBOD5, ammonia, cyanide, mercury, PFAS, pH, temperature, and dissolved oxygen are shown as blank/not-applicable fields.
Key data point: Arbor Hills Remediation Area outfall reported 'No Discharge: Y' for all of September 2026 (9/1/2026-9/30/2026); no actual effluent measurements were taken, only permit limits (e.g., TSS 30 mg/L / 25 lb/d max daily) are listed.
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.
EGLE's Air Quality Division approved the renewal of the Renewable Operating Permit (ROP0000236 v3.0) for Emerald RNG LLC, the landfill-gas-to-energy facility located at Arbor Hills Landfill in Northville, Michigan. The approval follows a completed USEPA 45-day comment period with no objections, and the permit will expire five years from its effective date unless renewed under Rule 217(1)(a).
Key data point: EGLE approved ROP No. ROP0000236 v3.0 for Emerald RNG LLC (Arbor Hills Landfill gas-to-energy facility), effective per letter dated 10/13/2026.
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a renewed Renewable Operating Permit (ROP0000236 v3.0) and associated source-wide Permit to Install issued by EGLE's Air Quality Division to Emerald RNG LLC (co-permittee Arbor Hills Landfill, Inc.) for the landfill gas-to-energy and thermal oxidizer operations at the Arbor Hills site. It sets emission limits, monitoring, recordkeeping, and reporting requirements for NOx, CO, and H2S from the RNG plant (EURNGPLANT) and its thermal oxidizer (EURNGTOX), and establishes a 5-year permit term with a renewal application window. The document is largely a regulatory conditions package rather than a report of actual facility performance or violations.
Key data point: ROP0000236 v3.0 requires EURNGTOX (thermal oxidizer) to be continuously operated at a minimum destruction temperature of 1,450°F, effective 10/13/2026.
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a draft Renewable Operating Permit (ROP) and Permit to Install (PTI) from EGLE's Air Quality Division covering the Arbor Hills Landfill gas treatment, flaring, and turbine systems. It lays out emission limits, monitoring, recordkeeping, and testing requirements, including a 20 ppmv total reduced sulfur (H2S) limit for the FGPROJECT23 gas treatment system and MACT Subpart YYYY requirements for the combustion turbines.
Key data point: Permitted TRS/H2S limit of 20 ppmv (hourly) for landfill gas burned in FGPROJECT23 (permitted limit, not a measured reading).
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a Michigan EGLE Air Quality Division Renewable Operating Permit (ROP) staff report and addendum for Arbor Hills Energy, LLC (N1504), the landfill-gas-to-energy/RNG facility co-located with the Arbor Hills Landfill. It explains the Title V permit renewal process, lists facility emissions and applicable federal/state air rules, and summarizes the facility's enforcement history (16 violation notices since 2014, a 2021 federal Consent Decree, and a 2022 state Consent Judgment) along with AQD's responses to public comments, including confirmation that a 2025 violation (VN-017118) was resolved through permit revision and successful stack testing.
Key data point: 16 Violation Notices issued against the Arbor Hills Energy/Landfill site from Dec. 2014 through April 2025; most recent VN-017118 (March 6, 2025) was resolved when AQD determined on Nov. 13, 2025 that Aug. 2025 stack testing demonstrated compliance.
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 EGLE letter notifies Arbor Hills Energy that no changes were made to its draft Renewable Operating Permit (ROP) renewal after the public comment period, and that the mandatory 45-day USEPA review period has begun. The letter is purely administrative, confirming procedural progress toward permit renewal.
Key data point: 45-day USEPA review period for ROP renewal runs October 9, 2026 to November 23, 2026 (SRN N1504)
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 EGLE submission reports results of a September 1, 2026 gas sampling event at the Arbor Hills Landfill's enclosed flare system (FGENCLOSEDFLARES-S2), testing for total reduced sulfur (TRS, measured as SO2) and hydrochloric acid (HCl). Average concentrations and calculated emission rates for both pollutants were well below the facility's permitted emission limits. The report also includes continuous flare temperature and gas flow data for the test day.
Key data point: Average TRS (as SO2) = 6.25 ppm / 0.068 lb/hr (vs. 2.5 lb/hr permit limit); average HCl = 3.98 ppm / 0.024 lb/hr (vs. 6.0 lb/hr permit limit) — Sept 1, 2026 sampling at FGENCLOSEDFLARES-S2.
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a stack test compliance report for the enclosed flares (FGENCLOSEDFLARES-S2) at the landfill, measuring sulfur dioxide and hydrochloric acid emissions against federal MSW landfill NESHAP limits. Three test runs for each pollutant show emissions far below their permitted hourly limits.
Key data point: SO2 three-run average 0.068 lb/hr vs. permitted limit of 2.5 lb/hr at FGENCLOSEDFLARES-S2 (40 CFR 63 Subpart AAAA)
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a MiEnviro Portal submission by GFL/Arbor Hills Landfill re-filing a stack test report (with a revised test report attachment) covering HCl and Sulfur sampling at the facility's enclosed flares, in response to a state correction request. It documents procedural test details (dates, contacts, approved test plan) but does not include the actual numeric test results in the submitted text.
Key data point: No specific numeric emissions reading is stated in this submission text; it references an attached 'September 2026 Enclosed Flare TO-15 Report Rev.1.pdf' as the source of actual HCl/Sulfur results.
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 OPAL Fuels compliance manager emails EGLE to update the permit mailing address for Arbor Hills Energy LLC and Emerald RNG LLC from a Lockport, NY address to a new White Plains, NY address. No other substantive information is changing.
Key data point: Administrative mailing address change only; no factual or compliance data provided.
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.
OPAL Fuels notified EGLE of an administrative change to the permit mailing address for Arbor Hills Energy LLC and Emerald RNG LLC, moving from a Lockport, NY address to a White Plains, NY address. No other permit information is changing and the email simply asks EGLE for next steps.
Key data point: No specific factual/measurement claim; this is an administrative address-change notification only.
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a stack-test report from Impact Compliance & Testing (ICT) to Opal Fuels/Arbor Hills Energy documenting September 9, 2026 sulfur-content and SO2 emission testing on two landfill-gas-fueled turbines (EUTURBINE4 and FGTURBINES/GT3) at Arbor Hills Landfill. The lab analyses (AtmAA) show gas composition, total reduced sulfur, and calculated SO2 emission rates, all of which comply with the limits in PTI No. 68-23A v2.0 and 40 CFR Part 60 Subpart KKKK.
Key data point: EUTURBINE4 (GT4) measured SO2 emissions of 1.89 x 10^-3 lb/MMBtu against the permitted limit of 0.15 lb/MMBtu, from LFG sampled 9/9/2026.
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a procedural MiEnviro submission for an HCl and sulfur sampling stack test conducted at Arbor Hills Landfill's enclosed flares in September 2026. EGLE reviewer Jeremy Howe issued a correction request, noting the report must be resubmitted as a stack test with the results table completed per the approval letter. No test results or numeric readings are included in this filing itself.
Key data point: No specific numeric readings in this filing; it is a correction request requiring resubmission of the HCl/Sulfur enclosed-flare stack test report per approval letter 05ER-EP56-RT7D.
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.
EGLE's Air Quality Division notified the testing contractor (Impact C&T) that a due date for the Arbor Hills Landfill flare emissions test report correction will be pushed back while EGLE consults internally. The underlying dispute concerns whether NOx emission rates from multiple enclosed flares should be summed as unit-based rates (lb/MMBtu), which the contractor argues is scientifically incorrect since such rates are not additive. The permitted NOx limit for the enclosed flares (FGENCLOSEDFLARES-S2) is cited as 0.060 lb/MMBtu.
Key data point: Permitted NOx emission rate for FGENCLOSEDFLARES-S2 is 0.060 lb/MMBtu; EGLE is delaying the due date for a requested test-report correction (submission HQR-1YG2-3TC95).
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is an administrative cover form for a compliance air quality test report submitted to EGLE, documenting an HCl and Sulfur sampling test conducted at Arbor Hills Landfill's enclosed flares on September 1, 2026. The actual test data is contained in a separately attached PDF report, not reproduced in this submission form.
Key data point: No specific readings stated; this is a submittal cover form for an HCl/Sulfur enclosed-flare TO-15 test conducted 9/1/2026.
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a cover letter from EIL to EGLE reporting that total reduced sulfur (TRS) and hydrogen chloride (HCl) gas sampling was conducted at Arbor Hills Landfill's enclosed flare system (FGENCLOSEDFLARES-S2) on September 1, 2026. The letter describes the sampling methodology and references an attached laboratory analysis report, but the actual analytical results are not included in the provided text.
Key data point: No specific numeric readings are stated in this cover letter; TRS/HCl sampling was conducted 2026-09-01 at FGENCLOSEDFLARES-S2, with results in an unincluded lab attachment.
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a routine air quality stack test report submittal from Arbor Hills Landfill covering a stack test performed on 7/29/2026, submitted via MiEnviro Portal. State reviewer Amanda Battershell issued a correction request noting the facility incorrectly averaged NOx run results by dividing by 6 instead of summing two values (0.025 + 0.030 lb/mmbtu). The submission includes contact info, test plan references, and a certification signed by facility representative Anthony Testa.
Key data point: EGLE correction request: NOx flexible-group average miscalculated; should be 0.025 + 0.030 lb/mmbtu (not divided by 6), Sept 2026
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This is a MiEnviro Portal submission of a stack test compliance report for Arbor Hills Landfill covering a July 29, 2026 test event. The submission includes two correction requests from AQD staff regarding the test methods used (25A/ALT-097) and the way flexible-group NOx averages were calculated across multiple runs.
Key data point: AQD correction request: NOx average should be 0.025 + 0.030 lb/mmbtu (not divided by 6 runs), stack test dated 07/29/2026
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's Arbor Hills Landfill submitted a status update letter to EGLE on corrective actions for two vertical gas collection wells, AHWW270R and AHWW277R, which had been granted an extension. The letter reports that replacement wells AHW270R2 and AHW277R2 were drilled, installed, and successfully activated on August 20, 2026, ahead of the extended deadline. An updated status will be included in the next VGC Liquid Monitoring and Management Report.
Key data point: Replacement wells AHW270R2 and AHW277R2 (for AHWW270R and AHWW277R) were activated and brought online on 8/20/2026, ahead of the extended 9/26/2026 corrective action deadline.