Category: EPA

Large coal fired power plant with smoking chimneys
Emissions / EPA
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Montana Power Plant Requests Clean Air Waiver: Is This the Future of America’s Coal Energy?

The Colstrip Power Plant in Montana is now one of the early applicants to the new EPA exemption application process which we have previously discussed here. Specifically, the Colstrip plant has requested a two-year exemption from EPA standards regarding air pollution.

Previously, in April 2024, this power plant was subject to stricter standards under updates to the Mercury and Air Toxics Standards (MATS) for power plants which was targeted at reducing airborne emissions of heavy metals including lead, arsenic, and mercury and had a compliance …

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Computer Monitor screen, concept of email
Emissions / EPA
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EPA Introduces New Email Account for Regulated Community to Request Presidential Exemption

The Environmental Protection Agency announced March 12 it set up an e-mail account allowing the regulated community to request a presidential exemption under Section 112(i)(4) of the Clean Air Act (“CAA”). 

The CAA permits the president to grant exemptions to stationary sources from compliance with any standard or limitation set forth under Section 112 for up to two years if the technology required to meet the standard is not available and if it’s in the United States’ national security interests.

In particular, the EPA requested …

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Water lighting background
EPA / WOTUS
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New Guidance for Defining the ‘Waters of the United States’

The Environmental Protection Agency announced March 10 it will be revising the definition for the Waters of the United States Rule (WOTUS). In a news release it said, “[t]he agencies will move quickly to ensure that a revised definition follows the law, reduces red-tape, cuts overall permitting costs, and lowers the cost of doing business in communities across the country while protecting the nation’s navigable waters from pollution.” 

In connection with this revision, the EPA will be relying on the Supreme Court decision in Sackett …

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smoke background
EPA / Regulations
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EPA Announces Rollbacks on 31 Environmental Provisions

The new administrator of the Environmental Protection Agency, Lee Zeldin, announced March 12 the agency would be rolling back 31 key environmental provisions that regulate air pollution, water protections, and the energy sector. A few of the key rollbacks are:

  • Reconsideration of regulations on power plants aimed at reducing power plant emissions by setting standards on carbon dioxide emissions and regulations.
  • Reconsideration of mercury and air toxics standards, including standards aimed at coal-powered plants which sought to reduce pollutants and regulations requiring the safe management
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EPA Offices, Washington DC
EPA / Wastewater
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Supreme Court Requires EPA to Set Specific Targets in Water Permits

The U.S. Supreme Court on Tuesday, in San Francisco v. EPA, held in a 5-4 decision that the EPA cannot enforce requirements in wastewater permits that “do not spell out what a permittee must do or refrain from doing.” 

San Francisco’s Oceanside plant, which has a combined sewage treatment plant and stormwater control system, discharges treated sewage and stormwater into the Pacific Ocean through eight pipes. Because one of the pipes discharges into federal waters, this facility is required to obtain a National Pollution …

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A man's hand in a blue glove takes a close-up of water into a test tube to measure water pollution
EPA / PFAS
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Update RE: EPA’s Proposed PFAS Rule Comment Period

In 2024, the EPA proposed a PFAS rule with a January 17, 2025, comment deadline in response to questions from the industry regarding the effective date of supplier notifications for mixtures or trade name products containing a per- or polyfluoroalkyl substance (PFAS) listed on the Toxics Release Inventory (TRI). 90 Fed. Reg. 10043. Stakeholders questioned whether the supplier notification requirements for PFAS begin on January 1, 2025, when PFAS were to be added to the statutory TRI chemical list, or upon EPA completing a rulemaking …

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Spraying trees against pests
EPA / Water Contamination
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Green Groups Urge Ninth Circuit to Push EPA on Atrazine Re-evaluation

Environmental groups are once again urging the Ninth Circuit Court of Appeals to compel the U.S. Environmental Protection Agency (EPA) to expedite its re-evaluation of atrazine, a widely used herbicide with significant environmental and health concerns. This legal push highlights the ongoing struggle between regulatory bodies and environmental advocates over the safety and regulation of chemical substances in agriculture.

Atrazine is one of the most commonly used herbicides in the United States, primarily applied to control broadleaf and grassy weeds in crops like corn, …

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Semi trucks parked
California / EPA
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California Withdraws EPA Waiver Request for Zero-Emission Advanced Clean Fleet Regulations

California’s Air Resources Board (CARB) on Jan. 13 sent a letter to withdraw its request to the Environmental Protection Agency pursuant to Sections 209(b) of the Clean Air Act (CAA) for a federal waiver that would require commercial truckers to switch to using zero-emissions vehicles in accordance with the CARB’s Advanced Clean Fleets regulation (ACF).

Had it been granted a waiver, CARB would have been allowed to put into effect the drayage and “high priority fleets” provisions of the ACF. CARB first requested this wavier …

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Dioxane
Emerging Issues / EPA
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EPA Finishes Risk Evaluation of 1,4-Dioxane under TSCA, Initiates Risk-Management Actions

Over the last six years, our firm has written extensively about 1,4-Dioxane, from U.S. EPA’s proclamations to state laws and regulations, litigation, and distinctions between federal and state perspectives. (see compilation of blog posts here.)

Today we are providing an update on the EPA’s final revised Unreasonable Risk Determination for 1,4-Dioxane, which includes new air and water exposure pathways that had not been previously evaluated, as well as evaluation of 1,4-Dioxane generated as a byproduct. 

According to EPA, 1,4-Dioxane is primarily used as …

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EPA Offices, Washington DC
EPA / PFAS
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EPA Continues Removing Confidential Business Info and De Minimis Exemptions for PFAS Chemicals

While ringing in the New Year, the Environmental Protection Agency announced the addition of nine per- and polyfluoroalkyl (PFAS) substances to the list of chemicals covered by the Toxics Release Inventory (TRI) pursuant to the Emergency Planning and Community Right-to-Know Act (EPCRA), making them the latest PFAS that can no longer be claimed as confidential business information. 

These chemicals include the following:

  • Ammonium perfluorodecanoate (PFDA NH4) (3108-42-7)
  • Sodium perfluorodecanoate (PFDA-Na) (3830-45-3)
  • Perfluoro-3-methoxypropanoic acid (377-73-1)
  • 6:2 Fluorotelomer sulfonate acid (27619-97-2)
  • 6:2 Fluorotelomer sulfonate anion (425670-75-3)
  • 6:2
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