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.

We welcome comments and suggestions for topics you would like to read about.

Visit our website:
Cornerstone Environmental Group

Stay Connected

LinkedIn

Archive for the ‘Air Quality’ Category

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…

[ Read More ]

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…

[ Read More ]

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?

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…

[ Read More ]

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…

[ Read More ]

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?

1 March 2017

Biogas energy recovery at a California wastewater treatment plant – Lessons learned

I recently worked on a very interesting project in California to design a biogas energy recovery system for a wastewater treatment plant (WWTP). The system recovers nearly 100 percent of the methane produced from anaerobic digestion of wastewater sludge and conditions it for heat and power generation and transportation fuel. The design integrates a BioCNG™…

[ Read More ]

Categories: Air Quality, Alternative Energy, Biogas and Landfill Gas, Environmental Planning & Compliance
Posted By Jessica Bernardini, PE at 11:30 AM  |  No Comments on Biogas energy recovery at a California wastewater treatment plant – Lessons learned

1 February 2017

Ghosts of permits past – What may be lurking in old permits and how it may hurt your facility

If you are like most environmental personnel, you have all of your air permits in your site files in case an inspector ever asks about one. You probably think that everything is covered and you are in compliance since you have all those permits. I worked on a project for a site that had great…

[ Read More ]

Categories: Air Quality, Environmental Planning & Compliance, Solid Waste
Posted By Julie Hall at 11:30 AM  |  No Comments on Ghosts of permits past – What may be lurking in old permits and how it may hurt your facility

4 January 2017

A forward thinking approach to air permitting at a landfill – six steps that will help you plan ahead

When it comes to air permitting and compliance, carefully planning ahead can make a big difference. We want to share forward-thinking approach to air permitting at landfills, which my colleague Geed Latif and I have developed based on work we did at a site in the Midwest. The site was new to us, so to…

[ Read More ]

Categories: Air Quality, Environmental Planning & Compliance, Landfill Engineering and Design, Solid Waste
Posted By Julie Hall at 12:02 PM  |  No Comments on A forward thinking approach to air permitting at a landfill – six steps that will help you plan ahead

30 November 2016

New NSPS Subpart XXX – Initial thoughts on how to comply and report

The air compliance team I work with has been working very closely with leaders across the solid waste industry to discuss a consistent approach as we all begin implementing the NSPS Subpart XXX rules. Initial reporting was due on November 28, 2016 for the Initial Design Capacity Report and the NMOC Emission Rate Report and…

[ Read More ]

Categories: Air Quality, Biogas and Landfill Gas, Environmental Planning & Compliance, Landfill Engineering and Design, Solid Waste
Posted By Deanna Picklesimer at 11:30 AM  |  No Comments on New NSPS Subpart XXX – Initial thoughts on how to comply and report

10 November 2016

Small changes matter when it comes to improving landfill gas quality

How many alarm bells go off in your head when monitoring data indicates a significant drop in landfill gas quality, especially if you are supposed to use the gas in a beneficial reuse facility? And what can you do about it? I have an interesting story about a Wisconsin landfill that illustrates that small changes…

[ Read More ]

Categories: Air Quality, Biogas and Landfill Gas, Environmental Planning & Compliance, Landfill Engineering and Design, Operations and Maintenance, Solid Waste
Posted By Cyndi Neitzel, PE at 11:30 AM  |  No Comments on Small changes matter when it comes to improving landfill gas quality

31 October 2016

Spray applied membranes – tips for effective use in landfill/brownfields redevelopment

Spray-applied membranes are typically the gas membrane barrier of choice to prevent vapor intrusion into buildings during landfill/brownfields redevelopment because they are so easy to apply around penetrations. But I have learned from experience (the school of hard knocks) that there are some real world pitfalls of using spray-applied membranes and achieving an effective methane…

[ Read More ]

Categories: Air Quality, Biogas and Landfill Gas, Environmental Planning & Compliance, Landfill Engineering and Design, Solid Waste
Posted By Joseph Nemesh, PE at 12:46 PM  |  No Comments on Spray applied membranes – tips for effective use in landfill/brownfields redevelopment