2,081 documents · page 13 of 42
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 community member notified EGLE that GFL has been dredging the stormwater detention pond at Arbor Hills since September 2023 to reduce total suspended solids (TSS) in discharge, and suggests that verification sampling for PFAS contamination should be conducted while the pond is empty. EGLE acknowledged awareness of the cleanout and bypass activity.
Key data point: Detention pond bypassed since September 2023; majority of sludge removed. No specific measurements reported.
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.
Discharge Monitoring Report (DMR) for Arbor Hills Remediation Area covering April 2024 (4/1–4/30) under permit MI0045713 v6.0. The report documents daily and periodic measurements of treatment pond effluent including flow, suspended solids, biochemical oxygen demand, ammonia nitrogen, phosphorus, cyanide, mercury, PFOS/PFOA/PFBS, temperature, pH, and dissolved oxygen.
Key data point: Temperature readings ranged 46.4–60.6°F (maximum 60.6°F on 4/17/2024); all measured parameters remained within permitted limits; no permit violations documented.
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 renewal application for air operating permits (ROP) for Emerald RNG LLC and Arbor Hills Energy LLC at SRN N2688 (Arbor Hills Landfill), covering a renewable natural gas (RNG) facility and related energy equipment. The permits establish emission limits, monitoring requirements, and operational restrictions for landfill gas processing, thermal oxidation, and combustion units.
Key data point: No specific factual measurements or violations stated; this is a permit renewal document containing regulatory limits and procedural requirements, not measured data.
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 issued a second violation notice to Arbor Hills Energy on May 10, 2024, citing deficiencies in the stack test protocol for nitrogen oxides (NOx) emissions from turbines. The facility's initial and revised test plans submitted in March and April 2024 were found inadequate and incomplete under federal Clean Air Act requirements. AHE was ordered to submit a corrected test protocol and specific test date by May 31, 2024, with warning that failure to comply could result in escalated enforcement action.
Key data point: Second Violation Notice issued May 10, 2024 for inadequate NOx stack test protocol; revised submissions on March 1 and April 18, 2024 both found noncompliant with 40 CFR Part 60, Subpart GG.
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EGLE conducted a Compliance Sampling Inspection (CSI) at Arbor Hills Remediation Area on March 6–7, 2024, under NPDES Permit MI0045713. The inspection found no visible effluent violations at the time, but identified a 12-month rolling average exceedance for total mercury (2.18 ng/L reported vs. 2.0 ng/L limit) in April 2023 DMR data. The facility must submit a written response by June 6, 2024, explaining the cause and corrective actions.
Key data point: 12-month rolling average total mercury violation: 2.18 ng/L vs. 2.0 ng/L permit limit, reported April 2023 DMR, cause attributed to atmospheric deposition.
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 conducted a Compliance Sampling Inspection at Arbor Hills Remediation Area on March 6–7, 2024, and found no visible permit violations at the time of inspection. However, review of Discharge Monitoring Reports identified a 12-month rolling average total mercury violation (2.18 mg/L reported vs. 2.0 ng/L limit) for April 2023, which the facility attributed to atmospheric deposition. The site operator is required to submit a written corrective action report by June 6, 2024.
Key data point: 12-month rolling average total mercury exceedance: 2.18 mg/L (limit 2.0 ng/L), April 1–30, 2023 DMR period; NPDES violation with no 5-day report submitted.
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EGLE conducted a compliance sampling inspection at Arbor Hills Remediation Area (NPDES Permit MI0045713) on March 6–7, 2024. Composite and grab samples were collected from monitoring point 001A (manhole near the facility compositor inlet) and analyzed for suspended solids, nutrients, metals, volatile organic compounds, and semi-volatile organics. Nearly all analytes were non-detect or below regulated limits; PFOS (3.2–3.4 ng/L), PFOA (9.4–15 ng/L), and PFBS (4.3–4.6 ng/L) were detected at low levels, with no permit violations noted.
Key data point: PFOA detected at 15 ng/L and PFOS at 3.4 ng/L in grab samples collected 3/6/2024, both below federal drinking-water standards but present in landfill effluent.
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EGLE conducted a Compliance Sampling Inspection (CSI) at Arbor Hills Remediation Area on March 6–7, 2024, analyzing composite and grab samples from outfall 001A for conventional pollutants, metals, volatile organics, and PFAS. All measured parameters were either non-detectable or within acceptable ranges, with no violations noted during the inspection.
Key data point: No violations detected; PFOA measured at 15 ng/L and 9.4 ng/L (EGLE and facility samples, respectively, 3/6/2024), PFOS at 3.4 ng/L and 3.2 ng/L; all volatile organics and BNA compounds non-detectable.
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This is an analytical laboratory report for PFAS (per- and polyfluoroalkyl substances) testing of a wastewater sample collected from Outfall-001A at Arbor Hills Landfill on March 6, 2024. The analysis detected multiple PFAS compounds including PFBA (33 ng/L), PFPeA (18 ng/L), PFHxA (22 ng/L), PFOA (9.4 ng/L), and PFOS (3.2 ng/L), among others, while many analytes were not detected above reporting limits.
Key data point: Outfall-001A wastewater sample dated 03/06/2024 detected PFBA at 33 ng/L, PFHxA at 22 ng/L, PFPeA at 18 ng/L, PFOA at 9.4 ng/L, and PFOS at 3.2 ng/L—evidence of PFAS contamination in landfill discharge.
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On March 6, 2024, inspector Sabrina Good conducted a compliance sampling inspection of the Arbor Hills Remediation Area under NPDES permit MI0045713. The photos document temporary hydrogen peroxide storage, sample handling procedures, monitoring points, and conditions at Johnson Drain.
Key data point: No specific factual readings or measurements are provided in this document; it consists only of photographic documentation without quantitative data.
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 Energy received an air permit to install (PTI 68-23A) on April 17, 2024, authorizing operation of four gas turbines and associated equipment that burn desulfurized landfill gas to generate electricity. The permit specifies emission limits for NOx, CO, SO2, VOC, and hydrogen chloride, along with detailed operating conditions, monitoring requirements, and testing protocols.
Key data point: No specific factual readings or measurements reported; this is a regulatory permit issuance document establishing permitted emission ceilings and operational requirements.
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 Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area covering March 2024, filed by GFL Environmental on April 16, 2024. The report documents daily and monthly measurements of treatment pond discharge including flow, suspended solids, biochemical oxygen demand, ammonia nitrogen, phosphorus, cyanide, mercury, PFOS/PFOA/PFBS compounds, thermal discharge, temperature, pH, and dissolved oxygen. All reported parameters appear to be within permit limits or below detection thresholds.
Key data point: Discharge temperature (Final Effluent) maximum daily: 57.9°F (March 17, 2024); no permit violation or exceedance indicated.
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 Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area covering February 2024. The report documents daily and weekly measurements of treatment pond discharge parameters including flow, suspended solids, biochemical oxygen demand, ammonia nitrogen, phosphorus, cyanide, mercury, PFAS compounds, temperature, pH, and dissolved oxygen. All reported measurements remain within permitted limits.
Key data point: No specific factual violations or exceedances reported. Temperature readings in Final Effluent (1) ranged from 31.9°F to 48°F in February 2024, all well below any concerning threshold.
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 color-coded mapping of handheld air quality monitoring results at Arbor Hills Landfill locations (MK and SM monitor stations), likely showing spatial variation in air pollutants around the landfill perimeter as of March 2024.
Key data point: Document title and date confirm handheld monitoring was conducted, but specific numerical readings or color-code thresholds are not provided in the text 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.
Merit Laboratories analyzed three wastewater samples from the Arbor Hills Remediation Area collected 03/06–03/07/2024. Total phenols were not detected in any sample (below 0.02 mg/L reporting limit); CBOD5 was also not detected (below 3 mg/L reporting limit).
Key data point: Total phenols: not detected (RL 0.02 mg/L) in all three samples; CBOD5: not detected (RL 3 mg/L) in samples S59505.02 and S59505.03, collected 03/06–03/07/2024.
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This document references an open flare operation at Arbor Hills Landfill with visible EURNGTOX (likely a reference identifier or equipment marking). The filing appears to be regulatory documentation from EGLE (Michigan Department of Environment, Great Lakes, and Energy) related to flaring operations and gas management.
Key data point: Open flare operation observed with EURNGTOX notation; no specific quantitative measurements or violation claims stated in the provided excerpt.
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EGLE filed notice of a monitored leak location within the nitrogen oxide (NOx) removal piping system at Arbor Hills Landfill on 2024-02-12. The document confirms ongoing monitoring of this inplant infrastructure component.
Key data point: Monitored leak location in NOx removal piping identified 2024-02-12; no quantitative readings provided in notice.
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This document appears to be a photograph or visual record of the STS (likely Soil Treatment System) equipment at ground level showing treatment vessels and valves. It was filed with EGLE (Michigan Department of Environment, Great Lakes, and Energy) on March 15, 2024.
Key data point: No specific factual readings or claims present; this is a visual/photographic document of operational equipment.
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 conducted a routine NPDES compliance sampling inspection of the Arbor Hills Remediation Area (permit MI0045713) on March 5–6, 2024. The facility treats landfill-impacted groundwater through impoundment and aerated lagoon processes. The inspection found satisfactory compliance across most areas, with a marginal rating for Records/Reporting due to non-uniform significant figures in Discharge Monitoring Reports, and plans to collect additional PFAS grab samples.
Key data point: No specific measured violation or exceedance documented. Inspection rated satisfactory for permit compliance; only deficiency was procedural (DMR significant figures rounding).
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This is a Permit to Install (PTI 67-23A) issued by Michigan's Air Quality Division on February 22, 2024, to Emerald RNG, LLC and Arbor Hills RNG, LLC for a renewable natural gas (RNG) plant at Arbor Hills Sanitary Landfill (SRN N2688). The facility will refine landfill gas to produce pipeline-quality natural gas using compression, dewatering, filtration, and adsorption treatment, with backup thermal oxidation and flare control devices.
Key data point: RNG plant designed to process up to 10,000 scfm of landfill gas; thermal oxidizer (EURNGTOX) must operate at minimum 1,450°F; NOx limit 0.06 lb/MMBTU hourly and 11.1 tpy; CO limit 0.20 lb/MMBTU hourly and 37.0 tpy.
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This document is a test platform baseline from ground level dated February 20, 2024, filed with EGLE. No substantive environmental data, measurements, or regulatory findings are provided in the text.
Key data point: No specific factual readings or claims are extractable from this document.
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This document is an EGLE testing record from February 13, 2024, documenting field measurements at the base of the RNGTOX (Rapid NGT Oxidation eXperiment) testing location at Arbor Hills Landfill. The record captures subsurface conditions on the day of testing.
Key data point: The document title indicates testing was conducted on 2-13-24 at the RNGTOX base location, but the text body provided contains no specific quantitative readings or findings.
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.
Operator record of process data filed with EGLE on 2024-02-20. No substantive details are provided in the submission to evaluate.
Key data point: Document is a procedural filing stub with no specific factual readings or measurements stated.
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 testing was conducted on 2-13-24. The document is a test record filed on 2024-02-20.
Key data point: No specific factual readings or measurements are provided in this document fragment.
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 blank or template form from EGLE for recording landfill operator process data in the control room, filed 2024-02-20. No actual measurements or data entries are present in this document.
Key data point: This document contains no specific factual readings or claims.
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EGLE test results from the base of RNGTOX (a landfill gas extraction and treatment system component) dated 2-13-24. The document appears to be a technical sampling report filed on 2024-02-20, though the full analytical results are not included in the excerpt provided.
Key data point: Test date 2-13-24 for RNGTOX base-level sampling; specific analytical results not visible in this 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.
A control room operator form filed with EGLE on 2024-02-20. The document name and type are noted but no substantive content or specific readings are provided in the excerpted text.
Key data point: No specific factual readings or claims are present in the provided 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.
Incomplete EGLE document titled 'Test platform on TOX from ground level' with minimal substantive content. The document appears to be a placeholder or header without full details of testing protocols, results, or findings.
Key data point: No specific factual readings or claims present; document header 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.
EGLE test day was conducted on 2024-02-20 for an open flare facility located next to a TOX (toxic air) monitoring unit. The operator ran the majority of testing during this event.
Key data point: No specific factual readings or measurements 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.
This is a Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area treatment pond for January 2024, submitted under NPDES permit MI0045713 v6.0. The report documents daily and monthly monitoring of effluent quality parameters including flow, suspended solids, biochemical oxygen demand, ammonia nitrogen, phosphorus, cyanide, mercury, PFAS compounds, temperature, pH, and dissolved oxygen. All reported measurements appear to be within or below permit limits.
Key data point: Temperature readings in final effluent ranged from 35.4°F to 40.6°F during January 2024; mercury detected at 1.7 ng/L on 1/10/2024 (quarterly measurement); no exceedances of major permit limits documented.
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 air emission compliance test report for Emerald RNG's waste gas thermal oxidizer (TOX) at Arbor Hills Landfill (SRN N2688), conducted February 13, 2024. The TOX burned waste gas from the renewable natural gas plant and was tested for NOx, CO, and NMOC emissions to verify compliance with Permit to Install 67-23A and federal MSW NSPS standards. All measured pollutant emission rates were below their allowable limits.
Key data point: TOX exhaust temperature 1,748°F average (three-test average); NOx 0.82 lb/hr (limit 0.06 lb/MMBtu); CO 3.77 lb/hr average (limit 0.20 lb/MMBtu); NMOC 0.01 ppmvd as hexane @ 3% O2 (limit 20 ppmvd) — all in 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.
EGLE conducted on-site observation of a scheduled stack test of the Emerald RNG LLC thermal oxidizer (EURNGTOX) at Arbor Hills Landfill on February 13, 2024, as required by Permit to Install 67-23. Testing measured NOx, CO, O2, and NMOC/VOC emissions; CO spikes were observed during operation but final estimates indicated compliance with emission limits. The RNG plant experienced operational issues the prior day related to pipeline quality and required repairs before testing could proceed.
Key data point: CO emissions spiked to ~800 ppm initially during Run #1, then fell to ~64 ppm at end of Run #1; final estimate indicated compliance with 0.20 lb/MMBTU CO limit; TOX operating at 1700°F (above minimum required 1450°F); NOx measured at approximately half the 0.06 lb/MMBTU limit.
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On February 12, 2024, EGLE Air Quality Division conducted an unannounced inspection of the Emerald RNG / Arbor Hills RNG facility (renewable natural gas plant). Inspectors observed significant odors and methane emissions from the Sulfur Treatment System (STS) carbon vessels, measuring up to 5000 ppm·m of methane and hundreds of ppm in the surrounding area, along with numerous minor leaks inside the building (mostly ~300 ppm, one ~10,000 ppm). The facility's response investigations did not replicate the findings, but AQD recommended further monitoring and improved recordkeeping.
Key data point: Methane laser smart device measured 5000 ppm·m from STS Vessel 301 vents; SEM5000 measured several hundred ppm in wide area; estimated 10,000 ppm leak from interior equipment; 600–1000 ppm·m exiting building roof vents—all Feb 12, 2024.
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 issued a violation notice to Arbor Hills Energy on January 18, 2024, for unpermitted operation of gas turbines and failure to comply with diesel fuel limitations and air emissions testing requirements. During October 2023 performance testing observations, inspectors documented the facility using diesel fuel during routine operation beyond the permitted 10-minute-per-hour startup window, and the facility's NOx testing failed to meet federal standards by testing only at maximum load instead of multiple loads as required.
Key data point: October 17, 2023: visible black smoke emissions from Turbines 1 & 2 for >10 minutes due to unpermitted fuel-switching during routine operation; October 18, 2023: similar event; December 18, 2023: submitted NOx test results conducted only at maximum load, violating 40 CFR 60.335(b)(2) requirement for testing at multiple loads.
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 December 2023 Discharge Monitoring Report (DMR) for the Arbor Hills Remediation Area treatment pond (Permit MI0045713 v6.0), documenting daily and summary measurements of flow, suspended solids, biochemical oxygen demand, ammonia nitrogen, phosphorus, cyanide, mercury, PFOS/PFBS/PFOA, temperature, pH, dissolved oxygen, and outfall observations. The report shows sporadic sampling with many data gaps marked as *E (equipment problems) and *F (facility issues), but measured values where available appear to fall within permitted limits.
Key data point: Temperature readings from treatment pond effluent ranged from 34.7°F to 42.8°F in December 2023, all within permit requirements; PFOS, PFBS, and PFOA detected at 0.0021, 0.0078, and 0.017 µg/L respectively.
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 issued a 2nd Violation Notice and Demand for Stipulated Penalties to Arbor Hills Landfill on January 10, 2024, under Consent Judgment No. 2020-0593-CE. The facility was documented as in Non-Compliance status by the Air Quality Division. This formal enforcement action represents an escalation in the regulatory response to ongoing violations at the site.
Key data point: 2nd Violation Notice and Demand for Stipulated Penalties issued January 10, 2024 under Consent Judgment No. 2020-0593-CE; facility marked Non-Compliance
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EGLE's Air Quality Division reports on enforcement and compliance activities at Arbor Hills Landfill as of January 2024, documenting perimeter air monitor exceedances near Cell 6, a Consent Judgment mandate to install gas collection by January 18, 2024, and ongoing odor complaints including 44 complaints on December 15, 2023. The agency confirms Cell 6 corrective actions are underway and notes that MMD has issued violation notices and stipulated penalty demands.
Key data point: 44 odor complaints received on December 15, 2023; perimeter monitor exceedances near Cell 6; gas collection system ordered installed by January 18, 2024 per 2022 Consent Judgment.
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EGLE issued a second violation notice to Arbor Hills Landfill on January 10, 2024, for failure to implement promised odor mitigation fans despite documented nuisance odors on November 1–2 and December 7, 2023. The violation breaches Consent Judgment No. 2020-0593-CE, and Arbor Hills is ordered to pay $1,500 in stipulated penalties and demonstrate full remediation within 30 days.
Key data point: Nuisance odors documented on November 1–2 and December 7, 2023, in Cell 6 during waste filling; odor mitigating fans not operating despite Arbor Hills' October 28, 2023 commitment to use them; violation of Consent Judgment CJ No. 2020-0593-CE Paragraph 5.17.D; $1,500 stipulated penalty demand.
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This is the Renewable Operating Permit (ROP0000224 v2.2) for Arbor Hills Landfill Inc., covering Section 1 general conditions, emission unit conditions for asbestos disposal, cold cleaners, and Rule 290 exempt units. It is a standard regulatory permit document outlining enforceability, monitoring, recordkeeping, and reporting obligations, with no specific measured emissions data included.
Key data point: No specific measured readings; document is a permit template with general and unit-specific conditions (e.g., visible emissions limit 20% opacity, 6-min average) for ROP0000224 v2.2, effective 2011-01-24, expired 2016-01-24.
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 113-page Renewable Operating Permit (ROP) and Permit to Install (PTI) issued January 24, 2011 (revised March 28, 2018) by Michigan's Air Quality Division to Advanced Disposal Services Arbor Hills Landfill, Inc. (SRN N2688) in Northville, Michigan. The permit establishes operational, design, monitoring, and reporting requirements for the landfill's active gas collection system, treatment equipment, enclosed flares, and cold cleaner operations under federal NSPS WWW and NESHAP standards.
Key data point: No specific factual readings or measured data provided; this is a regulatory permit document stating operational and design standards, not a report of actual site conditions or violations.