2012-12-17 · Arbor Hills Remediation Area · procedural · routine
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Advanced Disposal Services received a Certificate of Coverage (COC) under the NPDES General Permit for stormwater discharge from Arbor Hills Landfill, authorizing discharge of stormwater meeting specified criteria to an unnamed tributary of Johnson Drain. The permit is subject to Total Maximum Daily Load (TMDL) standards for biota and E. coli in the Rouge River Watershed and was issued August 9, 2012, with a modification dated December 20, 2012.
Key data point: No specific factual readings or measurements provided; this is a permit authorization document.
2012-12-17 · Arbor Hills Remediation Area · procedural · routine
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Advanced Disposal Services (formerly Veolia ES) notified MDEQ of corporate name changes for its Michigan NPDES-permitted entities effective December 4, 2012, following a stock sale. No change in ownership of the permitted facilities occurred; only the operating company names were updated.
Key data point: No specific factual readings or violations stated. This is a corporate administrative name-change notification letter.
2012-12-13 · Arbor Hills Remediation Area · procedural · routine
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The Michigan Department of Environmental Quality approved Republic Services' revised Total Mercury Pollutant Minimization Program for the Arbor Hills Remediation Area's NPDES permit (MI0045713). The approval sets a water quality standard trigger of 1.3 nanograms per liter for total mercury in Outfall 001 effluent, requiring cost-effective corrective measures when this level is exceeded.
Key data point: Total mercury water quality standard / action level: 1.3 ng/L for Outfall 001, Arbor Hills Remediation Area, approved December 14, 2012.
2012-12-12 · Arbor Hills Remediation Area · procedural · routine
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This document presents a Mercury Pollutant Minimization Plan for the Arbor Hills Remediation System under NPDES permit MI0045713, prepared by Golder Associates in September 2012. It includes a process flow schematic for the groundwater treatment system with multiple treatment components (aeration ditch, ponds, and monitoring wells). The plan outlines the wastewater treatment infrastructure and operational status as of the filing date.
Key data point: No specific quantitative readings or violation data provided; procedural document showing remediation system configuration only.
2012-12-12 · Arbor Hills Remediation Area · procedural · routine
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This Mercury Pollutant Minimization Plan (PMP) describes Arbor Hills' control strategies for mercury contamination in surface water and groundwater, targeting a 12-month rolling average effluent limit of 1.3 nanograms per liter. The plan requires annual reviews, semi-annual and quarterly monitoring, and implementation of cost-effective control measures. Prior actions (2008–2009) included restricting compost water intake and shutting down the MPB series of pumping wells, both identified major mercury sources.
Key data point: Mercury effluent limit target: 1.3 nanograms per liter (12-month rolling average); prior control measures included compost water restrictions and MPB pumping well shutdown (2008–2009).
2012-12-12 · Arbor Hills Remediation Area · procedural · routine
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This is a procedural document describing the Mercury Pollutant Minimization Plan for the Arbor Hills Remediation System, an NPDES-permitted facility (MI0045713). It presents a schematic diagram of the treatment process including holding tanks, granular activated carbon (GAC) filters, bag filters, and discharge monitoring points.
Key data point: No specific factual readings or violations stated; document is a schematic and process description only.
2012-12-06 · Arbor Hills Landfill · evidence · routine
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EGLE conducted an on-site inspection on December 6, 2012, as a follow-up to an odor complaint from the previous month. Inspectors observed landfill gas-type odor of low intensity (1–2) directly adjacent to the facility offices during tipping operations on the north slope. No odors were detected elsewhere on the perimeter.
Key data point: Landfill gas-type odor observed adjacent to offices, intensity 1–2, December 6, 2012, during active tipping.
2012-11-29 · Arbor Hills Landfill · evidence · routine
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EGLE Air Quality Division conducted a scheduled on-site inspection of Arbor Hills Landfill on November 29, 2012, following an odor complaint from a Northville Ridge resident. The inspector found the facility in compliance with ROP permit limits, detected no off-site odor impacts on the day of inspection, and attributed possible odor complaints to fugitive emissions from recently tipped waste and industrial waste streams rather than primary operational violations.
Key data point: H2S concentration measured at 275 ppm in landfill gas on November 29, 2012; previous readings 250 ppm (April 19, 2012) and 155 ppm (July 25, 2012 stack test).
2012-10-29 · Arbor Hills Remediation Area · procedural · routine
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The Michigan DEQ conducted an October 2012 storm water inspection of Arbor Hills Landfill under NPDES permit MIS210766, focusing on E. coli total maximum daily load (TMDL) compliance for the Rouge River Watershed. The facility's storm water detention pond was identified as potentially attracting birds that could be a source of E. coli contamination, and the operator was directed to develop a bird-deterrent action plan and sampling schedule by December 28, 2012.
Key data point: Storm water detention pond identified as potential E. coli source due to bird congregation; bird-deterrent plan required by December 28, 2012.
2012-10-17 · Arbor Hills Remediation Area · evidence · notable
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The Michigan DEQ Water Resources Division issued a Violation Notice to Arbor Hills on October 17, 2012 for failure to submit an approvable Mercury Pollutant Minimization Plan (PMP) as required by NPDES Permit No. MI0045713. The facility submitted two deficient versions of the plan (June 28, 2012 and August 13, 2012), and the DEQ found them inadequate because they did not clearly specify monitoring frequency for mercury at collection points and lacked a water flow diagram schematic. The facility was directed to submit a compliant Mercury PMP immediately to achieve compliance with the permit requirement to maintain effluent mercury concentration at or below 1.3 ng/L.
Key data point: Mercury PMP violation under NPDES Permit MI0045713; effluent concentration limit 1.3 ng/L; two deficient submittals (June 28 and August 13, 2012); continuing violation as of October 17, 2012.
2012-09-28 · Arbor Hills Landfill · evidence · routine
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EGLE conducted a self-initiated inspection on September 28, 2012, focused on contaminated soils arriving from a DTE-MichCon manufactured gas plant cleanup in Ann Arbor. The inspector observed slight burned-charcoal odors at the active tipping site where remediated soils were being mixed with other waste, and noted some gas-line plumbing anomalies in the West Phase area that were expected to be addressed. The facility was found in compliance with all air regulations.
Key data point: No quantitative air or temperature measurements recorded in inspection report; facility deemed in compliance as of September 28, 2012.
2012-09-06 · Arbor Hills Remediation Area · procedural · routine
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Golder Associates submitted a revised Mercury Pollutant Minimization Plan (PMP) to MDEQ on behalf of BFI for the Arbor Hills Remediation Area, detailing mercury control strategies and monitoring protocols. Historical mercury sampling data from 2008–2012 ranged from non-detect to 426 ng/L, with major controllable sources (compost water and MPB series wells) eliminated in 2008–2009. Current influent mercury concentrations are well below regulatory limits, with the most recent reading at 1.14 ng/L.
Key data point: Most recent influent mercury concentration 1.14 ng/L (1/17/2012), well below 12-month rolling average limit; historical peak 426 ng/L at MPB-403 (2/28/2008) before source elimination.
2012-09-04 · Arbor Hills Remediation Area · evidence · notable
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A Michigan DEQ email chain from August 2012 reviewing groundwater treatment data submitted by Arbor Hills Remediation Area from January 2012. The analysis identifies several contaminants in the influent to the treatment system, with selenium levels exceeding water quality standards by six times and potential violations flagged for vinyl chloride, arsenic, and nickel.
Key data point: Selenium in influent at 31 µg/L exceeds Water Quality Standard (5 µg/L limit) by 6x; arsenic at 9.4 µg/L approaching the 10 µg/L WQS.
2012-08-02 · Arbor Hills Remediation Area · evidence · notable
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DEQ aquatic biologist Daniel Rockafellow reviewed influent data submitted by Arbor Hills Remediation Area from January 2012 and found quantifiable levels of multiple contaminants including chloroethane, dichloroethane, vinyl chloride, arsenic, cadmium, nickel, selenium, zinc, and mercury. Analysis indicated that selenium levels in the influent exceeded water quality standards by 6 times and would violate WQS if discharged, while arsenic was found to be very close to exceeding standards.
Key data point: Selenium in influent at 31 ug/L exceeds water quality standard by 6x (WQS limit 5 ug/L); arsenic at 9.4 ug/L close to exceeding standard (PEL 10 ug/L); January 2012 sampling.
2012-07-25 · Arbor Hills Landfill · evidence · routine
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EGLE conducted a July 25, 2012 on-site inspection at the Fortistar gas-fired turbine plant adjacent to Arbor Hills Landfill to perform stack testing of Solar turbine No. 4 under Part 60, Subpart KKKK. Two test runs measured air emissions including SO₂, H₂S, and landfill gas composition, with no visible emissions observed from turbines or the flare.
Key data point: H₂S = 155 ppm in cleaned landfill gas delivered to turbine (Run 1, July 25, 2012); SO₂ = 6.23 ppm @ 15% O₂; facility in compliance.
2012-07-18 · Arbor Hills Remediation Area · procedural · routine
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This is a Certificate of Coverage (COC) issued by Michigan's Department of Environmental Quality under the National Pollutant Discharge Elimination System (NPDES) general permit authorizing Veolia ES Arbor Hills Landfill to discharge stormwater. The permit covers discharge to an unnamed tributary to Johnson Drain and is subject to Total Maximum Daily Loads for the Rouge River Watershed regarding biota and E. coli. The COC was issued August 9, 2012, and remains valid through April 1, 2017.
Key data point: No specific quantitative measurement or violation finding. Document is a routine permit issuance authorizing stormwater discharge.
2012-07-18 · Arbor Hills Remediation Area · procedural · routine
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The Michigan Department of Environmental Quality issued a Storm Water General Permit Certificate of Coverage (No. MIS210766) to Veolia ES Arbor Hills Landfill on August 10, 2012, authorizing storm water discharge control under the NPDES program. The permit establishes compliance requirements including quarterly site inspections by a certified operator, annual employee training, and annual SWPPP review reports to the department.
Key data point: No specific factual measurements or violations cited; this is a routine permit issuance letter.
2012-07-12 · Arbor Hills Remediation Area · procedural · routine
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An engineer from Golder Associates transmits January 2012 sampling results for various parameters at Arbor Hills to a Michigan DEQ official. The email forwards a PDF attachment containing influent data as requested by the regulator.
Key data point: No specific factual readings are visible in the email body; the actual sampling data is in an attached PDF not provided in this text.
2012-07-12 · Arbor Hills Remediation Area · evidence · routine
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TriMatrix Laboratories transmits a laboratory report for Arbor Hills Remediation Area NPDES work order 1201216, received January 17, 2012, and certified under multiple state and federal accreditation programs. The document is a cover letter for enclosed analytical test results; the full 33-page report contents are not shown in this excerpt.
Key data point: No specific factual readings or measurements are visible on this cover page; the full laboratory data is stated to be enclosed but not reproduced in the excerpt.
2012-06-07 · Arbor Hills Landfill · evidence · routine
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EGLE conducted a perimeter inspection on June 7, 2012 in response to spring odor complaints and new gas collection upgrades. No odors were detected around the landfill or in nearby Northville Ridge subdivision, and dust suppression measures were found effective during active soil movement for Cell 4 development.
Key data point: No odors observed during perimeter inspection on 06/07/2012; ambient temperature 65°F, NW wind 5 mph.
2012-05-31 · Arbor Hills Remediation Area · procedural · routine
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DEQ conducted a March 7, 2012 inspection of Arbor Hills Remediation Area's NPDES-permitted groundwater discharge and identified calculation errors in Discharge Monitoring Reports (DMRs) for biochemical oxygen demand, suspended solids, and ammonia nitrogen dating to November 2010, as well as a missing revised mercury pollution minimization plan. The facility was otherwise operating normally with no visible permit violations at the outfall.
Key data point: Mercury influent reading of 1.14 ng/L measured in January 2012 from treatment building; DMR calculation errors found in November 2010 reports requiring resubmission.
2012-05-15 · Arbor Hills Remediation Area · evidence · notable
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DEQ Water Resources Division inspected Arbor Hills Remediation Area on March 7, 2012 and found calculation errors in Discharge Monitoring Reports (DMRs) for biochemical oxygen demand, total suspended solids, and ammonia nitrogen dating to November 2010, requiring resubmission. The facility was also directed to submit a revised Mercury Pollutant Minimization Program (PMP) as site conditions had changed, with a proposed 12-month rolling average Hg limit of 10.0 ng/L based on monitoring data.
Key data point: Mercury influent reading 1.14 ng/L, January 2012; prior site-specific data points (3.44, 2.19, 9.19, 5.44, 1.52 ng/L) all exceeded the 1.3 ng/L baseline; revised Hg PMP required but not yet received as of May 2012.
2012-05-04 · Arbor Hills Landfill · evidence · routine
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An EGLE Air Quality Division inspector conducted an on-site inspection on May 4, 2012, following a March complaint. The inspector drove around the landfill and nearby residential subdivision to observe odors, finding only very slight landfill-type odors near the 6 Mile and Napier intersection (1-2 intensity) and no odors in the downwind residential area north of Northville Ridge Elementary School. The facility was found in compliance.
Key data point: Very slight landfill-type odors (1-2 intensity) observed only near 6 Mile and Napier intersection; no odors detected in downwind residential subdivision north of Northville Ridge Elementary School. Facility in compliance as of May 4, 2012.
2012-05-02 · Arbor Hills Landfill · evidence · routine
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EGLE Air Quality Division conducted a follow-up perimeter inspection on May 2, 2012 at 8:50 am in response to March odor complaints and recent gas collection system upgrades. The inspector found no odors around the landfill or compost facility perimeter, no visible emissions, and no trackout problems, and noted recent gas-collection infrastructure work on the east slope.
Key data point: No odors detected during perimeter drive-around inspection, May 2, 2012, 8:50 am; weather 54°F, wind W=E 5 mph.
2012-04-16 · Arbor Hills Landfill · evidence · routine
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EGLE conducted an on-site odor assessment at Arbor Hills Landfill on April 16, 2012, driving the facility perimeter and nearby neighborhoods downwind. No odors were observed anywhere around the facility or neighboring residential and park areas despite favorable downwind conditions.
Key data point: No odors observed during comprehensive perimeter and downwind assessment on April 16, 2012; facility found in compliance.
2012-04-12 · Arbor Hills Landfill · evidence · routine
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EGLE conducted an on-site inspection on April 12, 2012, following Republic Services' report of 22 surface methane exceedances (concentrations >500 ppm) in the second half of 2011 at Arbor Hills Landfill Section 2. The inspector found the facility in compliance with its permit and NSPS Subpart WWW, noting that Republic's ongoing remedial construction activities (well drilling, condensate pump installation, and piping upgrades) were effectively reducing surface emissions and odor impacts. The inspector observed no off-site odors during multiple perimeter drives and concluded that recent odor complaints from Northville Ridge residents were being adequately addressed by the corrective actions.
Key data point: 22 surface methane exceedances (>500 ppm) reported July–December 2011 at wells WW260, WW261, WW248, WW198R3; facility determined in compliance following corrective construction.
2012-04-11 · Arbor Hills Landfill · evidence · routine
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EGLE conducted an on-site odor inspection at Arbor Hills Landfill on April 11, 2012. The inspector reported no odors detected from landfill or compost operations during the morning evaluation. The facility was in compliance.
Key data point: No odors detected during on-site inspection, April 11, 2012, 8:15 AM; ambient temperature 36°F; wind 10–15 mph SW-NE.
2012-03-29 · Arbor Hills Remediation Area · evidence · routine
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This is a March 2012 post-inspection report of the Arbor Hills Remediation Area wastewater treatment facility (Permit MI0045713). The inspection found the facility operating normally with satisfactory conditions in most areas, but identified calculation errors in Discharge Monitoring Reports (DMRs) that the facility agreed to correct. The report documents a long history of effluent violations spanning 2008–2011 across multiple parameters including ammonia nitrogen, dissolved oxygen, total suspended solids, pH, and volatile organic compounds.
Key data point: Facility had calculation errors on DMRs from November 2010 onward due to incorrect Excel formulas; facility agreed to correct and resubmit. No measured temperature or air-quality readings provided in this wastewater-treatment inspection.
2012-03-29 · Arbor Hills Remediation Area · evidence · routine
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DEQ Water Resources Division conducted a March 7, 2012 reconnaissance inspection of Arbor Hills Remediation Area under NPDES Permit MI0045713, finding no visible permit violations at Outfall 001 but identifying calculation errors in Discharge Monitoring Reports for biochemical oxygen demand, suspended solids, and ammonia nitrogen dating to November 2010. The facility was also required to submit a revised mercury Pollution Minimization Plan as mandated by the permit.
Key data point: Calculation errors in DMRs for carbonaceous BOD, TSS, and ammonia nitrogen from November 2010 onward; revised mercury PMP was overdue as of March 7, 2012.
2012-03-29 · Arbor Hills Landfill · evidence · notable
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EGLE conducted a compliance inspection at Arbor Hills Landfill on March 29, 2012, meeting with the General Manager to discuss odor complaints, landfill gas collection construction plans, and expansion activities. The inspector observed composting odors downwind of the composting operation but no landfill odors; noted active gas drilling and re-drilling of decommissioned wells in Cell 5, an area suspected of producing fugitive gas linked to off-site complaints. The facility was found in compliance.
Key data point: Methane surface hits of >500 ppm observed near well WW-198R3; cover material added in response.
2012-03-07 · Arbor Hills Remediation Area · evidence · notable
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This 2012 DEQ pre-inspection report documents the Arbor Hills Remediation Area, a groundwater and leachate treatment facility at the landfill site. The facility treats contaminated groundwater and compost pile runoff, discharging treated effluent to an unnamed tributary of Johnson Drain. The report lists a substantial history of effluent violations spanning 2008–2011, including exceedances of ammonia, carbonaceous biochemical oxygen demand, dissolved oxygen, total suspended solids, pH, and trace organic compounds.
Key data point: No specific measured data provided in pre-inspection document; facility has 70+ documented effluent violations (2008–2011) including pH, ammonia, BOD, TSS, and organic compound exceedances, with most recent June 2011 CEI noting facility operating normally but DMR non-numeric code issues.
2012-02-09 · Arbor Hills Landfill · evidence · notable
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EGLE Air Quality Division inspector met with Republic Services and their consultant to address odor complaints from residents and a nearby elementary school, which management attributed to gas collection system issues including condensate blockages and vacuum losses. Republic indicated they have undertaken corrective measures including piping repairs and planned well replacements, and committed to providing updated monitoring data to AQD to assess effectiveness.
Key data point: Multiple off-site odor complaints in January–February 2012 ranging from 1 to 5 miles from the landfill, traced to gas collection system vacuum deficiencies and condensate accumulation; no Rule 901 violations determined at time of inspection.
2011-12-27 · Arbor Hills Remediation Area · procedural · routine
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The Michigan Department of Environmental Quality is reviewing a request by Republic Services to eliminate zeolite resin and activated carbon treatment units from the Arbor Hills remediation facility's NPDES permit system, citing discontinued groundwater remediation and compost runoff discharge. The department is requesting detailed water quality sampling and analysis of the source water from gradient control wells to ensure water quality standards will be maintained.
Key data point: No specific measured readings provided; this is a permit amendment request letter with analysis requirements but no factual data or measurements.
2011-12-02 · Arbor Hills Remediation Area · evidence · notable
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A December 2011 DNRE water resources compliance review of the Arbor Hills Remediation Area permit (MI0045713) documents two pH violations and one non-reporting violation over 12 months, and raises concerns about the facility's proposal to eliminate chemical treatment systems and discharge potentially contaminated groundwater to surface waters.
Key data point: Purge Well 403 mercury concentration: 426 ng/L (2/28/08), and facility proposes to eliminate Kinetico/carbon treatment system while discharging untreated landfill leachate to highest-quality tributary in Rouge River watershed.
2011-10-31 · Arbor Hills Remediation Area · procedural · routine
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This October 2011 WQBEL (Water Quality-Based Effluent Limit) Fact Sheet documents the remediation area discharge permit for Arbor Hills, carrying forward phosphorus limits and imposing mercury monitoring requirements based on exceedance potential identified in prior quarterly sampling. A June 2011 compliance inspection found the facility generally in compliance with its discharge permit.
Key data point: Mercury load limit of 10 ng/L based on LCA calculation; phosphorus limit of 1.0 mg/L monthly average and 0.8 pounds/day; facility found in compliance during June 2011 inspection.
2011-10-24 · Arbor Hills Remediation Area · procedural · routine
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This is a 2011 NPDES Certificate of Coverage (COC) renewal application for storm water discharges from Veolia ES Arbor Hills Landfill. The facility requests authorization to discharge storm water from the landfill into an unnamed tributary to the Johnson Drain under the NPDES General Permit for industrial activities. The application certifies that a Storm Water Pollution Prevention Plan (SWPPP) has been developed and implemented.
Key data point: No specific factual readings or measurements are present in this document; it is a procedural permit application.
2011-09-12 · Arbor Hills Remediation Area · procedural · routine
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BFI Waste Systems requests amendment to NPDES Permit MI0045713 for the Arbor Hills groundwater/leachate remediation system at 10159 W. Six Mile Road, Northville. The company proposes eliminating zeolite resin and activated carbon treatment components because new aeration systems have sufficiently reduced ammonia levels and BTEX compounds remain non-detect or minimal. Monitoring will continue, and treatment systems can be reconnected if future discharge data shows trends toward exceedances.
Key data point: Ammonia levels post-aeration: monthly average 1.57–0.24 mg/l (December 2010–April 2011), all below 6.4 mg/l NPDES limit; BTEX non-detect in influent and effluent for 2 years except one April 22, 2010 reading of 1.2 µg/l (discharge limit 20 µg/l).
2011-08-15 · Arbor Hills Remediation Area · evidence · notable
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This 2011 post-inspection report documents a Compliance Evaluation Inspection of the Arbor Hills Remediation Area wastewater treatment facility. The facility was found to be operating normally with records in order, but faced numerous effluent violations (primarily pH, ammonia nitrogen, carbonaceous BOD, dissolved oxygen, and total suspended solids) dating back to 2008–2011, as well as DMR reporting violations related to improper use of non-numeric codes during periods of no discharge.
Key data point: The facility had 100+ documented effluent violations spanning 2008–2011, primarily for ammonia nitrogen, pH, and dissolved oxygen exceedances; facility was in process of correcting non-numeric code reporting issues on Discharge Monitoring Reports.
2011-08-12 · Arbor Hills Remediation Area · procedural · routine
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The Michigan Department of Environmental Quality classified the Arbor Hills Remediation Area wastewater treatment facility (NPDES Permit MI0045713) at 10159 West Six Mile Road, Northville, under four treatment-type categories: A-1d Impoundment, B-2b Ion Exchange, B-3b Carbon Adsorption, and C-1b Aerated Ponds. The classification became effective 60 days from August 12, 2011, and requires a certified operator in responsible charge.
Key data point: No specific quantitative measurements or violation findings; procedural notice only.
2011-08-09 · Arbor Hills Remediation Area · procedural · routine
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The Michigan DEQ conducted a Compliance Evaluation Inspection of Arbor Hills Remediation Area on June 27, 2011, focusing on NPDES permit compliance for treated groundwater and compost runoff discharge. The inspection identified two permit violations in the prior 12 months (pH exceedance on 2/2/11 and unreported 1,1-dichloroethene on 4/30/11), DMR non-reporting issues, and a transcription error in April 2011 pH data; the facility was required to submit corrected reports and a revised Mercury Pollutant Minimization Program by September 8, 2011.
Key data point: Two NPDES violations in 12 months: pH 9.1 (limit 9.0) on 2/2/11, and unreported 1,1-dichloroethene influent on 4/30/11. Mercury monitoring showed reasonable potential to exceed water quality standards; revised PMP required.
2011-08-09 · Arbor Hills Remediation Area · procedural · routine
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This DEQ pre-inspection report documents the Arbor Hills Remediation Area wastewater treatment facility (Permit MI0045713) as of August 2011. The facility treats contaminated groundwater and historically treated compost pile runoff, but no longer accepts compost wastewater from the landfill. The most recent inspection (June 27, 2011) found the facility operating normally with records in order, though some DMR reporting violations involving non-numeric codes were noted and being corrected.
Key data point: No specific urgent reading. Document is primarily procedural: 27 violations spanning 2008–2011 mostly involve parameter exceedances (ammonia, dissolved oxygen, pH, total suspended solids, 1,1-dichloroethane, benzene, BETX) in treated effluent; two DMR late-filing violations noted for January 2009; no measured temperature or carbon monoxide data critical to landfill overheating risk.
2011-07-26 · Arbor Hills Landfill · evidence · routine
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EGLE air quality staff observed annual stack testing of the Solar Taurus Gas Turbine No. 4 at Arbor Hills Landfill on July 26, 2011, conducted by M3V consultants for compliance with NSPS Subpart GG. The facility was in compliance; testing measured hydrogen sulfide emissions and turbine power output.
Key data point: Turbine No. 4 hydrogen sulfide emissions: 180 ppm (Run 1), 180 ppm (Run 2), 190 ppm (Run 3), July 26, 2011.
2011-07-19 · Arbor Hills Remediation Area · evidence · notable
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This is a 2011 Comprehensive Environmental Inspection (CEI) report for Arbor Hills' Section M petroleum/groundwater cleanup facility (permit MI0045713). The inspection documents operational details of a multi-stage activated carbon treatment system and identifies two effluent parameter violations: a pH exceedance (9.1 vs. limit of 9.0 on 2-22-11) and an unreported 1,1-Dichloroethene detection (4-30-11). The report recommends permit modification to allow year-round discharge instead of seasonal operation.
Key data point: Two effluent violations: pH 9.1 (limit 9.0) on 2-22-11, and 1,1-Dichloroethene not reported on 4-30-11.
2011-06-14 · Arbor Hills Remediation Area · procedural · routine
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This is an NPDES (National Pollutant Discharge Elimination System) permit application review checklist dated June 14, 2011, for the Arbor Hills Remediation Area (Permit No. MI0045713). The document confirms administrative completeness of a permit reissuance application received on April 11, 2011, verifying that required submittals, facility information, discharge data, and monitoring requirements were satisfied.
Key data point: No specific factual readings or violations are stated. This is a procedural checklist confirming administrative completeness of a permit application.
2011-06-02 · Arbor Hills Landfill · evidence · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
EGLE conducted a routine inspection of the Arbor Hills Landfill gas plant (GRS, Section 3 of ROP) on June 2, 2011, finding the facility in compliance. The inspector reviewed gas turbine operations, landfill gas flow rates (6200–7800 scfm, targeting 9000 scfm), and treatment system performance, and discussed maintenance schedules and equipment changeouts.
Key data point: No specific factual readings of concern; routine operational data only. Landfill gas quality 52.7% methane, H2S measurement April 4, 2011 = 110 ppm.
2011-04-13 · Arbor Hills Remediation Area · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
BFI Waste Systems of North America (Republic Services) submitted a renewal application for NPDES permit MI0045713 for the Arbor Hills Remediation Area in Northville, Michigan on March 31, 2011. The facility operates a groundwater treatment system consisting of purge wells, gradient control wells, a Kinetico treatment unit, an aeration ditch, and two lined ponds that discharge treated groundwater to an unnamed tributary of the Johnson Drain.
Key data point: No specific factual readings or measurements provided in this permit application document.
2011-04-13 · Arbor Hills Remediation Area · procedural · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
This document is a wastewater discharge permit application (NPDES M10045713) filed in 2011 describing the groundwater treatment system at the Arbor Hills Remediation Area. The system includes purge wells, gradient control wells, a Kinetico treatment unit, an aeration ditch, and two large lined ponds designed to intercept and treat potentially impacted groundwater before discharge to an unnamed tributary of the Johnson Drain.
Key data point: No specific measured readings or violations reported. Document describes remedial infrastructure design: 60 gallons per minute treatment capacity, 1,400-foot aeration ditch, two ponds with 6.5 million gallon capacity each.
2010-07-15 · Arbor Hills Landfill · evidence · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
EGLE conducted a scheduled on-site inspection of the gas recovery system (GRS/Fortistar) at Arbor Hills Landfill on July 15, 2010, during draft ROP renewal. The facility was found in compliance, with turbines and flare operating normally and gas treatment systems maintained per preventative maintenance plans. H₂S monitoring showed 160 ppm (Jan 2010) and 110 ppm (Apr 2010); the landfill maintained at least 80 inches of water column vacuum.
Key data point: H₂S monitoring: 160 ppm (1-4-10) and 110 ppm (4-5-10); total plant gas flow 6,600 scfm; flare operating at 1,439°F; facility found in compliance.
2010-04-16 · Arbor Hills Remediation Area · evidence · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
A 2010 DNRE Water Bureau inspection of the Arbor Hills Remediation Area (a groundwater and runoff treatment facility at the landfill) found satisfactory permit compliance, operational records, and facility conditions. The inspection documented a pattern of historical effluent violations (ammonia, dissolved oxygen, suspended solids, and phosphorus) dating back to 2004, most recently in early 2010.
Key data point: 28 documented effluent violations across ammonia, dissolved oxygen, suspended solids, and phosphorus parameters from 2004–2010; facility no longer accepts compost wastewater from landfill.
2009-06-03 · Arbor Hills Landfill · evidence · routine
Automated summary of the linked document above. This summary and any key data point below are machine-generated and may contain errors. Consult the source document before relying on them.
EGLE conducted an on-site inspection at Arbor Hills Landfill on June 3, 2009 to investigate a semi-annual deviation report regarding delayed stack testing of Solar Turbine No. 4. The facility was found in compliance; testing in June 2007 and December 2008 showed SO₂ and NOx emissions below permit limits, and H₂S levels (125–170 ppm) were consistent with historical data from the turbine and comparable landfills.
Key data point: H₂S levels at Arbor Hills measured 125 ppm (June 2007) and 170 ppm (December 2008); inspector noted facility would exceed KKKK limit if H₂S regularly exceeded ~200 ppm.