Final Tennessee Multi-Sector General Permit for Industrial Stormwater Discharge
Posted: July 31st, 2025
What is the TMSP? The Tennessee Multi-Sector General Permit (TMSP) authorizes industrial stormwater discharges to waters of the State of Tennessee from industrial applicable and covered facilities. The previous TMSP expired on June 30, 2025, and the Tennessee Department of […]
Read article
Arizona is Peerless, Her Breezes are Soft, and Her Aquifer Water Quality Standards are Newly Updated
Posted: July 24th, 2025
On June 4, 2025, the Arizona Department of Environmental Quality (ADEQ) announced that the Governor’s Regulatory Review Council (GRRC) has approved updated Aquifer Water Quality Standards (AWQS). Four new AWQS have been added for bromate, chlorite, haloacetic acids (HAAs), and […]
Read article
Waters of the United States Reconsidered: Listening Sessions
Posted: July 17th, 2025
Listening Sessions & Public Input: U.S. EPA & U.S. Army Corps for “Waters of the United States” The U.S. Environmental Protection Agency (U.S. EPA) in a press release on June 17, 2025, announced the completion of the initial listening sessions […]
Read article
Changes to U.S. EPA PFAS Drinking Water Standards Under the Trump Administration
Posted: July 9th, 2025
In April 2024, the United States Environmental Protection Agency (U.S. EPA) finalized Maximum Contaminant Levels (MCL) for five per- and polyfluoroalkyl substances (PFAS): perfluorooctanoic acid (PFOA), perfluorooctanesulfonic acid (PFOS), perfluorohexanesulfonic acid (PFHxS), perfluorononanoic acid (PFNA), and hexafluoropropylene oxide dimer acid […]
Read article
CWA Hazardous Substances FRP: Implementation Delay Loading
Posted: June 11th, 2025
ALL4 has been tracking the Clean Water Act (CWA) Hazardous Substances Facility Response Plan (FRP) rule since the proposed rule was published in 2022. The final rule was published last year, and even before the 2024 election, the U.S. Environmental […]
Read article
New Draft Tennessee Multi-Sector General Permit for Industrial Stormwater
Posted: April 30th, 2025
The Tennessee Multi-Sector General Permit (TMSP) is intended to authorize industrial stormwater discharges to waters of the State of Tennessee from industrial facilities. The TMSP expires on June 30, 2025 and the Tennessee Department of Environment and Conservation (TDEC) has […]
Read article
North Carolina Takes Decisive Action in Regulating PFAS in Wastewater
Posted: April 17th, 2025
On September 11, 2024, the Water Quality Committee of North Carolina Department of Environmental Quality’s (NCDEQ) Environmental Management Commission (EMC) approved a motion to establish per- and polyfluoroalkyl substances (PFAS) monitoring for “every industrial and National Pollutant Discharge Elimination System […]
Read article
Happy World WATER Day: ALL4 Water Services
Posted: March 20th, 2025
Happy (Early) World Water Day! World Water Day is an annual United Nations observance on March 22 that began in 1993 to highlight the importance of fresh water. As ALL4’s Water Lead, I thought World Water Day was the perfect […]
Read article
Waters of the United States Reconsidered
Posted: March 19th, 2025
The United States Environmental Protection Agency (U.S. EPA), in a press release on March 12, 2025, announced the decision to review the definition of “waters of the United States” (WOTUS) with the U.S. Army Corps of Engineers (USACE). The U.S. […]
Read article
Supreme Court Limits Clean Water Act
Posted: March 12th, 2025
The Clean Water Act (CWA) gives the U.S. Environmental Protection Agency (U.S. EPA) the authority to impose requirements on facilities that wish to discharge “pollutants” into the waters of the United States. These requirements are in the form of National […]
Read article