Green Technology: A Sustainable Alternative to Conventional Challenges

Sustainability has made great strides both in acceptance and technology. Once considered an expensive alternative to conventional engineering challenges, sustainable techniques have come a long way toward reducing a facility’s carbon footprint while promoting renewable resources. Roux Associates, Inc. (Roux) has been employing the environment’s natural abilities to meet environmental goals for over 25 years. Through the use of Engineered Natural Systems®, or ENS®, Roux has designed and implemented green technologies to treat industrial and sanitary wastewater; stormwater; and environmental remediation eliminating high capital wastewater treatment plants and more importantly reducing operation costs and carbon footprint through energy efficiency and carbon dioxide sequestration. Read the full article below.

Dr. Adam Love to Present on Stable Isotope Fingerprinting

New Tool Validated for Vapor Intrusion Litigation:
Stable Isotope Fingerprinting

The increased regulatory focus on vapor intrusion has led to the development of better tools for determining the source(s) of VOCs in indoor air. One such tool is compound specific isotope analysis (CSIA). CSIA is a well-established method for fingerprinting of pure chemicals and groundwater contamination. CSIA compares molecular structures between two samples of the same material in order to determine the likelihood that they originated from the same source. While this approach has been applied to VOCs in indoor air, there has been some hesitation to use it in a litigation context given the lack of an established methodology. However, in the last month or so, two major developments have occurred that pave the way for utilizing this methodology for litigation related to vapor intrusion source attribution.

This presentation will provide an overview of typically vapor intrusion source attribution issues, then review and discuss the lessons learned and implication from:

  • The 9th Circuit court, in City of Pomona v. SQM North America Corporation, issued 5/2/14, which held that stable isotope analysis (for perchlorate in this case) meets the Daubert standard for admissibility.
  • The US Department of Defense’s environmental technology demonstration and validation program, ESTCP, issued a report titled “Use of Compound-Specific Stable Isotope Analysis to Distinguish between Vapor Intrusion and Indoor Sources of VOCs”.

These developments facilitate the use of isotope analysis techniques that can be effectively and efficiently employed to reduce uncertainty and answer questions that otherwise would be extremely difficult and costly to address.

NYC DEP Announced $6 million Available for 2014 Green Infrastructure Grant Program

New York City Department of Environmental Protection (DEP) is offering $6 million in grant funding for green infrastructure projects that manage stormwater runoff from private property. Private property owners in the combined sewer areas of all five boroughs of New York City are eligible to apply. The fall due date for applications is October 21, 2014.

What is Green Infrastructure?

Green infrastructure systems mimic natural processes to manage and treat stormwater runoff.  Examples include rain gardens, green roofs, porous pavement, bioswales, and treatment wetlands. These systems offer multiple benefits including:

  • Improving water quality and public health
  • Passive operations resulting in low maintenance
  • Improved aesthetics
  • Creation of habitat
  • Strengthening coastal resiliency

Roux Associates are nationally recognized experts and leaders in the design and implementation of sustainable Engineered Natural Systems (ENS®) treatment technologies such as Constructed Treatment Wetlands (CTW), Phytotechnologies, and other passive technologies (e.g., permeable reactive barriers and natural media filtration).  Our award-winning ENS® technologies have been used to treat groundwater and surface water contamination, stormwater runoff, contaminated soils and sediments, landfill leachate, and industrial/municipal wastewaters.

NYC DEP Online Application

View the online application for the New York City Department of Environmental Protection’s Green Infrastructure Grant Program here.

Green Infrastructure Grant Program FAQ’s

Concerned about stormwater management on your site?
Looking to increase the resiliency of your infrastructure?

For more information or to see if your site qualifies, click here.

Engineered Natural Systems (ENS®)

To learn more about Roux Associates low-cost “Green” ENS® treatment technologies click here.

Did you miss the DEP’s workshop on eligibility criteria?

Roux Associates attended the event and can help answer your questions or if you want to learn more about our Engineered Natural Systems (ENS®) services, click here and we will be happy to customize a brown bag / technical presentation to suit your needs.

Roux Raised Over $14,000 for the American Diabetes Association

On Saturday, June 7th several Roux associates participated in the American Diabetes Association’s Tour De Cure on Long Island, NY.  The T1 Team had riders that rode multiple distances (20 miles, 60 miles, 100 miles) to support the American Diabetes Association in their efforts to provide education, research and hopefully one day discover a cure.  T1 Team raised a total of over $28,000 of which $14,634 was from Roux fundraising efforts.  The weather was perfect, the people were amazing, and overall the Tour was a great success.  Thank you to all who volunteered, participated and supported this great event and cause.

06-2014-ADA-TourDeCure

Roux Sponsoring the Long Island Green Infrastructure

This conference will facilitate the successful use of green technologies to manage water quality and energy issues by municipalities, private developers and the public. Information on cost effective green infrastructure techniques that increase sustainability, cost effective use on renewable energy, increase stormwater infiltration, and preventing adverse impacts on Long Island’s valuable water resources will be presented as well as much more. If you are interested in the event, please click here.

New Tool Validated for Vapor Intrusion Litigation

Stable Isotope Fingerprinting of Indoor VOCs
Technique for Identifying Source(s) of Indoor VOCs Now Postiioned to Survive Daubert Challenge

Until recently, vapor intrusion was not a major concern at contaminated sites. Now there is a realization that indoor air impacts can be the most direct exposure to people from subsurface contamination. In addition, the new ASTM Phase I standard creates much greater visibility for the potential for vapor intrusion. While measuring concentrations of VOCs in indoor air is a well-established practice, determining the source of the VOCs has often been problematic:

  • Is subsurface contamination actually contributing to indoor air VOCs?
  • Are outdoor air concentrations of VOCs a major contributor to indoor levels?
  • Are potential indoors sources of VOCs, such as dry cleaning, aerosols, paint, solvents, etc., distinguishable from vapor intrusion?
  • Do VOC concentrations continue to show up inconsistently, even after remediation, but you cannot exclude the possibility of residual soil vapor as a source?

The increased focus on vapor intrusion has led to the development of better tools for determining the source(s) of VOCs in indoor air. One such tool is compound specific isotope analysis (CSIA). This is a well-established method for fingerprinting of pure chemicals and groundwater contamination. CSIA compares molecular structures between two samples of the same material in order to determine the likelihood that they originated from the same source. While this approach has been applied to VOCs in indoor air, there has been some hesitation to use it in a litigation context given the lack of an established methodology. However, in the last month or so, two major developments have occurred that pave the way for utilizing this methodology for litigation related to vapor intrusion source attribution.

  1. The 9th Circuit, in City of Pomona v. SQM North America Corporation, issued 5/2/14, held that stable isotope analysis (for perchlorate in this case) meets the Daubert standard for admissibility.
  2. The US Department of Defense’s environmental technology demonstration and validation program, ESTCP, issued a report titled “Use of Compound-Specific Stable Isotope Analysis to Distinguish between Vapor Intrusion and Indoor Sources of VOCs”. This report provides the documentation needed for establishing a standard methodology and method validation to meet legal standards for admissibility and withstand Daubert challenges or state-specific expert witness thresholds (such as Sargon in CA).

These developments facilitate the use of isotope analysis techniques analysis that can be effectively and efficiently employed to reduce uncertainty and answer questions that otherwise would be extremely difficult and costly to address.