Welcome to CornerPost

Welcome to Cornerstone's blog, which is devoted to providing useful information to our clients and industry professionals.

Our talented staff of bloggers will offer brief, thoughtful pieces on the topics facing our industry today.

CornerPost will feature tips and tools, lessons learned, observations about major conferences, and much more.

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1 May 2018

Hot landfills – prevention, detection and solutions

The issue of hot landfills has become a significant challenge to the waste industry over the last ten years. When a landfill’s temperature begins to elevate significantly, rapid response is necessary to minimize impacts to the public and costs to the owner. Each hot landfill is unique and I wanted to share the experience gained…

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Categories: Biogas and Landfill Gas, Environmental Remediation, Landfill Engineering and Design, Operations and Maintenance, Solid Waste
Posted By James Walker, PE at 11:30 AM  |  No Comments on Hot landfills – prevention, detection and solutions

7 March 2018

Storm water permitting and design – what’s new and notable with state and federal regulations in the Midwest?

Storm water permitting at landfill facilities is guided by a combination of industrial and construction storm water management practices under the National Pollutant Discharge Elimination System (NPDES) provisions of the Clean Water Act. This post will look at regulation changes in several Midwestern states to determine if changes are likely to result in practical differences…

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Categories: Environmental Planning & Compliance, Landfill Engineering and Design, Operations and Maintenance, Solid Waste
Posted By Dan Morgan, PE at 12:26 PM  |  No Comments on Storm water permitting and design – what’s new and notable with state and federal regulations in the Midwest?

26 July 2017

Waters of the United States – Where are they flowing these days?

Just a few days ago, while sipping coffee and scrolling through my Twitter feed, I came across a post from my US Congressman, Rep. Kevin Yoder, which caught my eye. It was clear he was excited about the EPA’s decision to withdraw the WOTUS rule. There’s a hashtag for everything these days, and I never…

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Categories: Environmental Planning & Compliance, Landfill Engineering and Design, Solid Waste
Posted By Chris Eaton, LG at 11:30 AM  |  3 Comments on Waters of the United States – Where are they flowing these days?

28 June 2017

What is an infrared camera – and how can it help me?

Imagine seeing someone looking down the lens of what appears to be a 1980s video camera pointed toward your facility. You may not know whether to laugh or call the cops! Believe it or not, this may really happen to you and I was once one of the regulators who did this. Prior to my…

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Categories: Air Quality, Biogas and Landfill Gas, Environmental Planning & Compliance, Landfill Engineering and Design, Operations and Maintenance, Solid Waste
Posted By Deanna Picklesimer at 10:00 AM  |  1 Comment on What is an infrared camera – and how can it help me?

7 June 2017

EPA administrator issues 90-day stay of NSPS XXX/Cf rules – what will it mean?

Faithful CornerPost readers know we have written about NSPS a few times. This time, I’m taking pen to paper (figuratively) to report on the recent 90-day Stay of Standards of Performance: Municipal Solid Waste Landfills and Emission Guidelines and Compliance Times for Municipal Solid Waste Landfills (aka the NSPS XXX/Cf rules), which was issued on…

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Categories: Air Quality, Environmental Planning & Compliance, Landfill Engineering and Design, Operations and Maintenance, Solid Waste
Posted By Julie Hall at 2:42 PM  |  No Comments on EPA administrator issues 90-day stay of NSPS XXX/Cf rules – what will it mean?

17 May 2017

Solar energy generates revenue from closed landfills

Let’s face it – there are only so many revenue-generating uses for a closed landfill. Unless you generate enough landfill gas (LFG) to make power generation or other LFG use feasible, the closed landfill sits not generating any revenue for at least 30 years. That’s why siting a solar array on a closed landfill can…

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Categories: Alternative Energy, Biogas and Landfill Gas, Environmental Planning & Compliance, Solid Waste
Posted By Drew Lent, CPG at 11:30 AM  |  1 Comment on Solar energy generates revenue from closed landfills

4 May 2017

How to avoid prematurely committing a landfill to NSPS compliance – carefully plan sampling to avoid positive bias

Landfill operators must conduct Tier 2 testing to calculate a landfill’s non-methane organic compound (NMOC) emission rate if the design capacity is greater than 2.5 million megagrams (MG). Favorable results of a Tier 2 test allows landfills to opt out of the New Source Performance Standards (NSPS) requirements to install and operate a gas collection…

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Categories: Air Quality, Biogas and Landfill Gas, Environmental Planning & Compliance, Landfill Engineering and Design, Solid Waste
Posted By Brad Albrinck, PE at 2:20 PM  |  No Comments on How to avoid prematurely committing a landfill to NSPS compliance – carefully plan sampling to avoid positive bias

19 April 2017

Coal combustion residuals – what should you consider before accepting them?

Unless you live under a rock, you know about the new CCR Rule, a RCRA Subtitle D Non-Hazardous Waste Rule that covers coal combustion residuals (CCRs). These include fly ash, bottom ash, boiler slag, and flue gas desulfurization (FGD) waste. I thought it would be interesting to share my thoughts on how the rules are…

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Categories: Air Quality, Alternative Energy, Biogas and Landfill Gas, Environmental Planning & Compliance, Environmental Remediation, Solid Waste
Posted By Don Grahlherr, PE at 11:30 AM  |  No Comments on Coal combustion residuals – what should you consider before accepting them?

5 April 2017

Planning stormwater and sediment erosion control measures to minimize construction delays

When it rains it usually pours – and when you are on a tight construction schedule it is imperative to minimize weather-related construction delays. That’s why it is so important to identify and implement effective stormwater and sediment erosion control measures during the construction planning phase for a landfill cell. These measures will help reduce…

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Categories: Environmental Planning & Compliance, Landfill Engineering and Design, Solid Waste
Posted By David Sonne at 10:34 AM  |  No Comments on Planning stormwater and sediment erosion control measures to minimize construction delays

15 March 2017

Landfill mining – what are the impacts on groundwater quality?

There’s gold in them thar landfills! Well, you might think so, given the increase in mining of municipal solid waste (MSW) from landfills in recent years. From less than ten landfill mining operations in the early 1990s we now have upwards of 100 MSW mining operations in progress in the U.S. MSW is mined for…

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Categories: Environmental Planning & Compliance, Environmental Remediation, Landfill Engineering and Design, Solid Waste
Posted By Bill Soukup at 11:30 AM  |  No Comments on Landfill mining – what are the impacts on groundwater quality?