Pathways December 2023 - Cascade's Remediation Focused Newsletter

Pathways newsletter banner

This 'Pathways' edition spotlights groundbreaking environmental solutions. Explore case studies on Thermal Conduction Heating in Brownfield redevelopment and innovative approaches to petroleum contamination. Gain insights from our experts on overcoming injection challenges and delve into technologies like WaterlooAPS™ and Pathfinder™ for effective PFAS groundwater management. Join our upcoming events for more insights, and share your thoughts in our survey. Dig into this edition for a concise journey through environmental innovation and success.

Technology Spotlight: 3 Challenges of In Situ Management of PFAS-Impacted Groundwater

Managing PFAS-impacted groundwater effectively starts with accurate site flux characterization. A primary question is “Do I understand how PFAS is moving through the subsurface?" Waterloo Advanced Profiling System™ (WaterlooAPS), ensures cost effective flux characterization by measuring hydrostratigraphic data to define transmissive zones, while collecting PFAS samples all in a single procedure and with no cross contamination from traditional groundwater sampling. Learn how WaterlooAPS can streamline your site PFAS flux characterization process and provide confidence that you are remediating contamination that poses actual risk versus those tied up in finer grained storage zones. The migration of PFAS into groundwater is a critical environmental concern due to the potential risks to public health. Halting this spread is essential.

ColloidalChem, a high-mobility and low-pressure injectable colloidal activated carbon, is designed to immobilize PFAS effectively, providing a barrier against downgradient contamination. Get detailed insights into how ColloidalChem™ works to protect water purity.

Injection of amendments in varied geologies is a complex endeavor, and controlling and quantifying this process is critical for our clients. To address this, Cascade offers Pathfinder™, an automated injection technology providing continuous injection control while data logging pressure and flow rates, ensuring adherence to critical contaminant contact design parameters. Explore how Pathfinder can optimize your amendment injections, providing documented assurance that the job is done right.

Ask the Expert

How do you overcome DPT refusal when injecting and injection wells won’t provide adequate contact in the heterogeneous target interval?

Four approaches can work:

Talk to a drilling expert regarding the most appropriate drilling technology for the lithology and target depth.
Use a robust drilling method (auger or sonic) to overcome the upper refusal zones, then proceed with direct push injection.
Injection through sonic injection tooling
Drill open boreholes and isolate target intervals with straddle packers.

Ask us >>

TCH BROWNFIELD REDEVELOPMENT: TREATMENT OF THREE SEPARATE AREAS AT A BROWNFIELD SITE

A heavily contaminated Brownfield site in Central New York was remediated and redeveloped using thermal conduction heating (TCH) for PCE and TCE DNAPL source removal and a sheet pile wall due to high groundwater velocity. Removal of the source area allowed rapid redevelopment of the property into valuable commercial properties.

Read the full case study >>

COLLOIDALCHEM™ AND BIOREMEDIATION ADDRESS PETROLEUM CONTAMINATION

In a former railroad town built during Colorado’s mining boom, the leading edge of a benzene plume from an underground storage tank (UST) was traveling downgradient from an active gas station. The owner needed to stop the contaminant migration before it worked its way to several neighboring homes or eventually into the nearby Eagle River, known for excellent fly fishing.

Read the full case study >>