CERCLA/Superfund & Environmental Trusts Home Insights Publications Spatially averaged, flow-weighted concentrations – a more relevant regulatory metric for groundwater cleanup Murray Einarson advocates for the use of a new standard for groundwater cleanup in place of maximum contaminant levels. South Carolina revises stormwater rules Recent changes to South Carolina’s regulations may affect the way you manage stormwater at your site. Learn more in our update. EPA releases updated toxicity values for Benzo(a)Pyrene: what you need to know EPA has published higher risk-based screening values for benzo(a)pyrene. Find out how this might affect your projects. Direct push optical screening tool for high-resolution, real-time mapping of chlorinated solvent DNAPL architecture The tool is a new site characterization technology that facilitates 3-D delineation of residual chlorinated solvent DNAPL in the subsurface. Emerging contaminants in Arizona water: a status report Haley & Aldrich staff worked closely with ADEQ's Advisory Panel to produce this report on emerging contaminants in Arizona’s water supplies. New data on background indoor air levels of volatile organic compounds (VOCs) and air-phase petroleum hydrocarbons (APH) in office buildings and schools Vapor Intrusion Practice Leader Rich Rago offers an analysis on the new data. Development and testing of a field screening method based on bubbling extraction and photoionization detection for measurement of benzene and total VOCs Peter Bennett and Murray Einarson discuss a new screening method to complete a site conceptual model and analyze groundwater from monitoring wells. Insights from Battelle’s Ninth International Conference on Remediation of Chlorinated and Recalcitrant Compounds Michael Basel and Paul Tornatore discuss industry trends from Battelle’s Ninth International Conference on Remediation of Chlorinated and Recalcitrant Compounds. Seven ways to achieve lean success Steve MacIntyre, Haley & Aldrich Lean Integration Leader, explores seven strategies for a successful lean integration. How to empower executives to remediate contaminated sites Steve MacIntyre, Lean Integration Leader, discusses applying lean principles to remediate sites. Bolster sustainable remediation through stakeholder collaboration Karin Holland, Senior Sustainability Specialist, argues that stakeholder collaboration is key to better sustainable remediation.