Regulatory Strategies 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. 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. Protect workers from harmful chemicals, advocates urge EPA In this Bloomberg BNA article, Anthony Noce shares his perspective on TSCA and the potential need for EPA to work with OSHA on certain risk management actions. California Water Action Plan: Impacts and opportunities for the mining industry We summarize the goals and implications of the California Water Action Plan, SGMA, and SWS and discuss potential opportunities for the mining industry. Coal combustion product (CCP) safety data sheet guidance document Haley & Aldrich has prepared this guidance document to help companies develop OSHA-compliant Safety Data Sheets for Coal Combustion Products. FGD gypsum safety data sheet guidance document Haley & Aldrich has prepared this guidance document to help companies develop OSHA-compliant Safety Data Sheets for FGD gypsum. Overview of depth‐discrete multilevel groundwater monitoring technologies: focus on groundwater monitoring in areas of oil and gas well stimulation on California Describes key multilevel systems for groundwater monitoring in areas of oil and gas well stimulation, as required by California law. Aggregate protection guidance Eric Mears provides guidance for identifying aggregate resources and developing strategies and policies for protecting those resources.