Mark Gordon Snyder, PE, F.ASCE

Project Summary - Active Gas Station—Eastern Michigan ORIN successfully implemented Free Product Removal (FPR) in-situ chemical oxidation using catalyzed sodium persulfate to treat LNAPL, contaminated soil, and groundwater. Treatment chemistry was injected while the Geoprobe rods were raised throughout the target interval. A vac truck was present to remove LNAPLand desorbed contaminants while providing hydraulic control. Approximately 2,400 gallons of 20% sodium persulfate catalyzed with PermeOx Plus was injected into 47 DPT injection locations. A second polish injection was needed to achieve site cleanup goals. In June of 2011, 24 DPT points were injected with approximately 1,200 gallons of 20% catalyzed sodium persulfate treatment. Project Results The catalyzed sodium persulfate treatment chemistry removed the free product and reduced the dissolved phase BTEX concentrations at the most contaminated well by an average of 78%, between pre-injection and post-injection sampling. Additionally, subsequent sampling events have observed no measurable LNAPL. The residual PermeOx Plus catalyst will continue to provide an oxygen source promoting bioremediation. https://lnkd.in/gqFwMs3A

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How are #water utilities tackling #PFAS remediation? Read more in this article from INFORMED INFRASTRUCTURE, which features a study that the Stantec Institute conducted for the National Association of Clean Water Agencies (NACWA).

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The U.S. EPA’s Lead and Copper Rule Revisions (LCRR) go into effect on October 16, 2024, but new updates could reshape aspects of this rule even before it goes live. In this post, we break down critical elements of the LCRR and what Public Water Systems need to know about the proposed Lead and Copper Rule Improvements (LCRI). Read now 👉 https://ow.ly/mCUT30sHmA9 #EPA #PWS #LCR #DrinkingWater #PublicHealth #PublicSafety #WaterSafety #WaterManagement

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🚨 Major update in environmental regulation! 🚨 The EPA has proposed new RCRA rules that could add nine PFAS compounds to the list of hazardous constituents. These changes may revolutionize waste management practices and bolster community protection from PFAS contamination. Learn more: https://lnkd.in/gen2DqRj 🌍 #EnvironmentalRegulation #PFAS #WasteManagement #EPAUpdates

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A new tool from the #USDA could help the #Southwest with #watersupply planning: #Water Adaptation Techniques Atlas. https://ow.ly/PMve50SwZTc Did you know BC has #resiliency experts? PM me to see how we can help.

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📰 Hot off the press! #PFAS News and Views – November 2024 👉 https://ow.ly/KHBK30sItZR The EPA’s PFAS Strategic Roadmap is paving the way for 2025. This month’s blog by expert Lindsay Boone, https://ow.ly/6wzv30sI5GM. dives into key updates on aquatic life criteria, plastics regulation, and reporting changes that could reshape industries like manufacturing and environmental science. Don’t miss the insights you need to stay ahead of the curve: https://ow.ly/xLCQ30sI5GN --- #PFAS #PFASTesting #RegulatoryCompliance #EnvironmentalCompliance #Environmental #EnvironmentalNews

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A good overview of PFAS replacement program for airports. #pfas #afff #pfasreplacement https://lnkd.in/g_fTwkUX

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With the addition of #PFAS to #CERCLA's Hazardous Substances list, the due diligence process presents new challenges. TRC's webinar will cover how this regulation affects ASTM Phase I Environmental Site Assessments (ESAs) & due diligence in general. https://okt.to/hwzSBf

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How can public water systems prepare for what's coming with the US Environmental Protection Agency (EPA)'s Lead and Copper Rule Improvements? Stantec provides guidance in this article for Water Online. #StantecWater #WaterInfrastructure

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How are water utilities tackling PFAS remediation? Read more in this article from Informed Infrastructure, which features a study that the Stantec Institute conducted for the National Association of Clean Water Agencies.

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Are you a #waterutility? Do you have questions about #climateresilience? Miller, Rynders, and Dalal are here to help! 😂 #ACE24 CDM Smith #NextIsNow Rina N. Dalal, PE Tim Rynders

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It's time to update our understanding of the #climate we live in, and make sure our decisions and preparations reflect the current reality. With the ClimRR tool, planners, emergency managers, and community leaders now have access to valuable data and knowledge to make our communities more #resilient to climate threats. Join the webinar tomorrow, Oct 1, to see how insightful the (free!) ClimRR data can be:

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Today we are highlighting one of the articles in the International Journal of the Commons’ collection “Crafting combinations to govern local groundwater”. This Article highlights the global issue of groundwater management and addresses the complex issues of groundwater management initiatives. https://lnkd.in/eusw6BTq

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Coming Soon! “RiskFootprint™ Enhances Hazard and Climate Assessment Technology with Cutting-Edge USGS Landslide and WRI Water Stress Models”. RiskFootprint™, a leading provider of hazard and climate assessment technology, is excited to announce the integration of the new USGS Landslide Susceptibility Model and the World Resources Institute's (WRI) Water Stress Model into our SaaS platform. This enhancement significantly expands our existing suite of over 30 current hazard assessments and four future climate change impact predictions, offering our clients the most comprehensive risk analysis available on the market. Find out more at RiskFootprint dot com. U.S. Geological Survey (USGS) World Resources Institute #riskassessment #riskmanagement #riskfootprint #resilience ASTM International #PropertyResilienceAssessment

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A new tool from the #USDA could help the #Southwest with #watersupply planning: #Water Adaptation Techniques Atlas. https://ow.ly/jvXV50SwYHB Did you know BC has #resiliency experts? PM me to see how we can help.

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Looking to upgrade how you manage stormwater? NOAA recently launched the National Water Prediction Service (NWPS), a game-changer for stormwater professionals, engineers, and environmental planners. The NWPS combines the latest technology and data from the Advanced Hydrologic Prediction Service (AHPS) and NOAA’s Office of Water Prediction, offering features like river gauges, water hazards, precipitation estimates, national water models, snow analysis, and flood inundation maps. These can be overlaid on an interactive map, providing real-time, comprehensive views of water conditions. The advanced hydrographs compile data from the past 30 days, enhancing prediction accuracy and enabling river-gauge forecasts up to a week in advance. For stormwater professionals in Georgia, this means being better prepared for potential flooding and the ability to manage water resources more effectively. With continuous updates and new tools, the NWPS ensures you have the latest information at your fingertips to make informed decisions. Utilize this helpful tool to better protect your waterways and improve your stormwater management practices! https://buff.ly/4c9zcFF #NPDES #NPDESTraining #NPDESTrainingInstitute #TrainingThatMatters #Stormwater #StormwaterManagement #StormwaterProfessionals #StormwaterTraining #MS4Training #MS4sMatter #WaterQuality

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