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Regulatory News

EPA Proposes Adjustment to Two-Step New Source Review Process

August 29, 2019

On August 9, 2019 EPA proposed the Prevention of Significant Deterioration (PSD) and Nonattainment New Source Review (NNSR): Project Emissions Accounting regulation to clarify and eliminate uncertainty relating to Step 1 of the New Source Review applicability process. (more…)
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Regulatory News

What’s Going on with WOTUS?

May 2, 2019

Last year, Blackstone shared an article explaining that the definition of the waters of the United States (WOTUS) was in limbo. The 2015 Clean Water Rule attempted to provide a clearer definition of WOTUS but has been under numerous court challenges. (more…)
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Company News

Alternative Earthen Final Cover Services

April 23, 2019

Blackstone Environmental provides design, monitoring and evaluation services to landfills in the implementation and management of the Alternative Earthen Final Cover (AEFCs). Native grasses, wild flowers, shrubs and trees are key for areas surrounding landfills to eventually mimic the natural state before landfill development, and sustained biodiversity as a result of trees and grasses will provide food sources for different wildlife species. (more…)
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Company News

Project Profile: Stormwater Channel Restoration

January 29, 2019

Blackstone Environmental recently provided water resource engineering to an industrial facility in Nebraska to assist in replacement of an undersized storm water culvert and restoration of channel riprap lining and vegetation. (more…)
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Solid Waste News

U.S. Faces Waste Recycling Challenges

January 29, 2019

Changing Markets in China and National Sword Policy  By now, most everyone in the solid waste industry and many outside the industry are familiar with China’s National Sword Policy, which became effective in February 2018. (more…)
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Regulatory News

Recent EPA Policy Guidance for Air Quality Permitting

September 13, 2018

The United States Environmental Protection Agency (EPA) recently released an applicability letter and draft policy memo that have a notable effect on how stationary source determinations are made for air quality permitting. EPA defines “stationary source” in the federal construction permitting regulations (40 CFR Parts 51 and 52) and the Title V operating permit regulations (40 CFR Parts 70 and 71) as all pollutant-emitting activities that meet three criteria: (more…)
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Company News

Blackstone’s Emily Smart receive EPA L.E.A.F.S. Award

April 25, 2018

Blackstone Environmental is pleased to announce that Emily Smart was among the named recipients of an EPA L.E.A.F.S. award made to the City of Dubuque on Thursday, April 19, 2018, for their work on the Peoples Natural Gas Superfund Site redevelopment in Dubuque, IA. (more…)
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Regulatory News

Superfund Target Lists Released

March 1, 2018

In May 2017, a Superfund Task Force was formed to provide recommendations to streamline and improve the Superfund Program. In July 2017, the Superfund Task Force recommended that EPA develop a list to target Superfund sites for immediate and intense action. (more…)
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Regulatory News

“Once In Always In Policy” for NESHAP Major Sources Withdrawn

March 1, 2018

In January 2018, EPA issued a guidance memorandum that withdrew the long-standing “once in always in” policy for the classification of major sources of hazardous air pollutants under section 112 of the Clean Air Act, the National Emission Standards for Hazardous Air Pollutants or NESHAPs. (more…)
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