Water
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Earth Day 2023–Investing in a Balanced Approach to Emerging Contaminants
In the 1962 book, Silent Spring, Rachel Carson brought to the forefront of public attention contaminants of emerging concern (CECs). CECs, or emerging contaminants, are chemicals or materials that can be characterized by a perceived, potential or real threat to human health or the environment. Continue reading
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New WOTUS Rule Halted in Half of Country by Federal District Court
On April 12, 2023, a federal district court judge in North Dakota issued a temporary injunction blocking implementation of the EPA and Army Corps of Engineers regulations redefining Waters of the United States (“WOTUS”) under the Clean Water Act (“CWA”) (the “2023 WOTUS Rule”). Continue reading
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Incorporating PFAS in Industrial Wastewater Discharge Permits to Minimize Risk or Extent of Future CERCLA Liability
PFAS are being detected in drinking water systems across the United States. Moreover, evolving regulatory developments already require or soon will require that public water systems sample for and remediate these chemicals (see, e.g., here). Continue reading
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How Low Did U.S. EPA Go–U.S. EPA Issues Its Long-Awaited Draft PFAS Drinking Water Standards
Almost two years to the date after U.S. EPA issued its regulatory determination for contaminants on the forth Contaminant Candidate List, U.S. EPA has issued its draft rule setting drinking water limits for several PFAS compounds. Specifically. U.S. EPA’s draft rule proposes a four part per trillion (ppt) maximum contaminant level (MCL) for perfluorooctanoic acid (PFOA)… Continue reading
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EPA and the Army Corps Finalize WOTUS Rule, Again
On December 30, 2022, U.S. Environmental Protection Agency (“EPA”) and the U.S. Army Corps of Engineers (“Army Corps”) announced they had finalized the rule establishing the definition of “waters of the United States” (“WOTUS”) under the Clean Water Act (“CWA”) (the “WOTUS Rule”). Continue reading
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U.S. EPA Adopts Expanded Definition of PFAS on Its Drinking Water Contaminants List
On November 2, 2022, U.S. EPA released the pre-publication version of the fifth contaminant candidate list (CCL 5) containing 66 chemicals, 12 microbes, and three chemical groups (per- and polyfluoroalkyl substances (PFAS), cyanotoxins, and disinfection byproducts. Continue reading
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Jenner & Block Wishes Bon Voyage to Gay Sigel as She Starts Her Next Adventure with the City of Chicago
As Gay Sigel walked through the doors at One IBM Plaza in Chicago, fresh out of law school and ready to launch her career as an attorney at Jenner & Block, she could not have envisioned the tremendous impact she would have on her clients, her colleagues, and her community over the next 39 years. Continue reading
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How Low Can You Go—U.S. EPA Attempts to Answer that Question With New PFAS Health Advisory Levels
U.S. EPA issued its long anticipated interim updated drinking water health advisories for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) that replace previous health advisories for these per- and polyfluoroalkyl substances (PFAS) that had been set at 70 parts per trillion (ppt). Continue reading
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U.S. EPA Updates Regional Screening Levels to Add Five New PFAS Chemicals
On May 18, 2022, U.S. EPA updated its Regional Screening Level tables to include five new per- and polyfluoroalkyl substances (PFAS). The five new PFAS compounds added to the RSL tables are hexafluoropropylene oxide dimer acid and its ammonium salt (HFPO-DA – sometimes referred to as GenX chemicals), perfluorooctanesulfonic acid (PFOS), perfluorooctanoic acid (PFOA), perfluorononanoic… Continue reading
CERCLA, Climate Change, Contamination, Emerging Contaminants, Groundwater, RCRA, Sustainability, WaterAgency for Toxic Substances and Disease, ammonium salt, CERCLA, Contamination, Corporate Environmental Lawyer, EPA, GenX chemicals, hexafluoropropylene oxide dimer acid, HFPO-DA, industrial soil, Jenner & Block, perfluorononanoic acid, perfluorooctanesulfonic acid, perfluorooctanoic acid, PFAS, PFHxS, PFNA, PFOA, PFOS, Polyfluoroalkyl, RCRA, Regional Screening Level, remediation, RSL, Steven M. Siros, tap water -
Embracing the Winds of Change Through Investments in the United States’ Energy Future
When the wind of change blows, some people build walls, others build windmills.” While this ancient Chinese proverb most likely did not envision the construction of large-scale, offshore wind farms, its wisdom remains strikingly applicable to the United States’ energy and infrastructure policies in the 21st Century. Continue reading