Arbor Hills Landfill Public MeetingSeptember 6, 2017

Larry Bean, Waste Management and Radiological Protection. Jackson and Lansing District Supervisor

Scott Miller, Air Quality Division, Jackson District Supervisor

MDEQ Landfill Roles and Responsibilities

Waste Management and Radiological Protection Division

• Permitting

• Licensing

• Operations

• Inspections

• Monitoring

Air Quality Division

• Oversee operation of Gas Collection and Control System

• Federal Requirements• NSPS WWW

• NESHAP AAAA

• Title V Operating Permit

www.michigan.gov/deqarborhills

Larry Bean: 517-416-4375

Scott Miller: 517-780-7481

Diane Kavanaugh-Vetort: 517-780-7864

Website and Contact Information

Complaints/Concerns?Complaints/Concerns• Contact Arbor Hills Directly: Community Hotline: 248-305-8432

• Arbor Hills Landfill - Online Complaint Form (Automatically forwarded to MDEQ)

• Contact MDEQ Directly: MDEQ Environmental Assistance Center: 800-662-9278

• MDEQ Online Odor Complaint Form

Monitoring Efforts

• DEQ Monitoring

• RK and Associates

• Surface Methane and Well Head Monitoring

Monitoring Efforts

• DEQ Monitoring

• RK and Associates

• Surface Methane and Well Head Monitoring

Original Cell 6 Permit Location Vs. Modification

Cell Excavation

In mid-June 2017, Arbor Hills submitted to the MDEQ for approval a minor permit modification to the west portion of Cell 6. The modification includes changing the west portion of Cell 6 to flow into Cell 4, with the changed area to be referred to as Cell 4E. The proposed modification will minimize waste removed from Arbor Hills East to approximately 40,000 cubic yards (cy) from 500,000 cy – a 92 percent reduction. The modification will reduce the potential for offsite odors.

Location of Cell ExcavationArea of Cell 4E

Original Cell 6 Permit Location Vs. Modification

Area originally

permitted for excavation

Modification would only

allow excavation of this area. This

would significantly

decrease area to be excavated.

Location of Cell Excavation and Liner System Detail

Odor Controls during Cell Excavation

• Arbor Hills Odor Control Plan

• Test Digs

• Excavation from 8-5pm

• Daily Cover

• Odor Observations

• Leachate Capture

• Gas Capture

Status of Corrective Actions as Established by EPA Enforcement Action

• Compliance Plan to address violations

• Construction work and deadlines

• Gas System and Flares

• Leachate System Enhancements

• Landfill Enhancements

Flares

Temporary Flare: In March of 2017, Arbor Hills began utilizing a temporary flare at the northwest corner of the landfill to increase vacuum and to aid in odor control. This flare will operate into 2018.

Permanent Flare: A high-capacity flare is currently going through the permitting process for installation in 2018.

Location of FlaresTemporary flare

(Installed March 2017)

Permanent backup flare (planned for 2018)

Perimeter Header

Arbor Hills this summer began installing a new, 24-inch diameter pipe around the perimeter of the landfill. The project is scheduled to be completed in 2018. Completion includes the railroad crossing and final tie-in to the gas-to-energy plant with a 36-inch diameter pipe.

Location of Perimeter Header24-inch header pipe along north, toward northwest corner (present construction)

24-inch header pipe along west & south, toward power plant (this fall)

36-inch header pipe under railroad track, to power plant (2018)

New & Replacement Wells

This summer, Arbor Hills installed 14 new gas collection wells and 11 re-drilled wells within the landfill. The wells were installed along the south and west sides, where Arbor Hills determined where landfill gas collection most needed to be improved.

Leachate Tank

Arbor Hills this summer installed a new, glass-lined leachate storage tank at the southeast corner of the landfill. The new tank is equipped with carbon filtering to help prevent odors. It went into use in July. The existing leachate tank will replaced in 2018.

Location of New Leachate Tank

New leachate tank with carbon filtration (installed)

Final CoverArbor Hills has begun to place final cover on a 20-acre portion of the south side of the landfill. This project will conclude this fall. Closure entails covering this area with a liner system, which is covered with soil and planted with grass.

Location of South Slope Final Cover

Final Cover Location (present construction)

Odor Neutralization System

Arbor Hills has installed an odor neutralizing system to help mitigate odors. The system operates around the perimeter of the active area of the landfill, drawing air and infusing it with odor neutralizer as it expels it. It is safe for human health and the environment, quiet, unscented and requires no water.

Temporary CoverTo more efficiently collect landfill gas in the “bowl area” and prevent off-site odors approximately ten acres on the landfill’s north face was covered with a synthetic liner.

An additional seven acres will be covered this fall with the same style of synthetic liner. The new covering will extend above the present temporary cover.

Location of Synthetic Coverings

Location of present synthetic liner

Location of additional synthetic liner(scheduled for this year)

Odor Surveillance Location Map

Questions??

800-662-9278

www.michigan.gov/deq

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