News


Blackstone digs deeper into technical topics and shares company news.

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. Project An existing channel crossing the culvert system, which consisted of multiple circular corrugated metal pipes, did not provide adequate hydraulic capacity or have the ability to pass woody debris downstream. The existing culverts needed replacement, and the client requested a box culvert to improve hydraulic capacity through the channel. Existing channel banks downstream of the culvert crossing were eroding due to lack of riprap and exposure to the elements over many years. The native soils are highly erodible, which was evident in multiple areas of the storm water channel. Services This project included water resource engineering, streambank stabilization and Corps of Engineers environmental permitting. Blackstone designed a new concrete box culvert for an access road crossing for the main storm water channel running through the facility. The existing culvert was undersized and was…
Keep Reading

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. The bans, restrictions and tougher contamination standards are an effort by China to improve air quality, reduce pollution and prevent illegal waste smuggling. In the short-term, National Sword and other policy changes are creating major challenges for U.S. recyclers to find new markets or reduce contamination in their materials (since 1992, China has imported 106 million metric tons of plastic waste, or 45% of all plastic waste). In some areas, recyclable materials are ending up in landfills, and municipalities are canceling curbside recycling programs. Over the long-term, it will change the way the U.S. deals with its waste, and hopefully create opportunities for innovation and the development of new domestic markets. A new international organization, the Global Alliance to End Plastic Waste, was established earlier this year to develop solutions…
Keep Reading