Search

EPA Proposes Comprehensive Cleanup of 1,4-Dioxane at NJ Superfund Site

Posted on 5/23/2019 by Lauren Scott

Last month, US Environmental Protection Agency (EPA) announced a cleanup plan to eliminate 1,4-dioxane among other volatile organic chemicals and metals from the CPS/Madison Superfund site in Old Bridge, NJ. Although site remediation is already well underway, the EPA has moved to expand the cleanup by increasing and enhancing the existing groundwater treatment system and adding on-site treatment of contaminated soil.
 

1,4-Dioxane

1,4-dioxane is a volatile organic chemical often found at chemical manufacturing facilities, such as those previously at the CPS/Madison Superfund site. It is a clear, colorless liquid that is commonly used as a stabilizer in certain chlorinated solvents, such as paint strippers, greases, and waxes. Because it is water soluble, 1,4-dioxane can easily leach into water sources and is resistant to biodegradation, making it a challenge to remove from groundwater.

EPA cites 1,4-Dioxane as a likely carcinogen through all routes of exposure. Although no Federal maximum contaminant level has been established, EPA has determined less than 4 mg/L concentration of 1,4-dioxane in drinking water is not likely to impact our health. The Occupational Safety and Health Administration (OSHA), however, established a Federal limit of 100 parts per million when workers are exposed to 1,4-dioxane in the air.
 

CPS/Madison Superfund Site Remediation

1,4-Dioxane requires complex site remediation strategies, EPA notes in the proposal. Workers will need to excavate and relocate roughly 900 cubic yards of contaminated soil from the CPS/Madison Superfund site to a specialized treatment center, where it will be remediated via oxidation.

Soil that has been exposed to organic contaminants other than 1,4-dioxane will be treated with chemical oxidants, breaking down the hazardous chemicals into water and carbon dioxide.

Contaminated groundwater would go through a similar process in which an oxidant is pumped into the groundwater. EPA would also use a line of wells to create a reactive barrier, destroying the organic chemicals as they pass through. EPA also plans to monitor the groundwater for several years afterwards to ensure that the site will no longer be a source for contamination and will perform a full review every five years to ensure the cleanup’s effectiveness.

EPA has also instructed the NJ Department of Environmental Protection to monitor the water supply of neighboring Perth Amboy to ensure the safety of its municipal water supply.

EPA is currently accepting comments via e-mail here until May 24. The public may also submit written comments to: John Osolin, Remedial Project Manager, U.S. Environmental Protection Agency, 290 Broadway, 19th Floor, New York, NY 10007.
 

HAZWOPER Training – Anytime, Anywhere

Hazmat techs are required to undergo Hazardous Waste Operations and Emergency Response (HAZWOPER) training if they work in one of three activities:

 

  1. Work at an environmental cleanup site (e.g., Superfund cleanup site)
  2. Work at an EPA or state-permitted hazardous waste TSDF
  3. Responding to releases of hazardous materials

Ensure you and your team know what to do for the next HAZWOPER incident and keep in compliance with OSHA’s HAZWOPER standard with Lion’s 40 Hour HAZWOPER Initial Contaminated Site Cleanup online training. This course is specially designed for general workers such as equipment operators, laborers, and supervisors who need initial site cleanup training with the flexibility to start, pause, and complete the course at their own pace, wherever they are.

Need more specialized training? Check out Lion’s full suite of HAZWOPER training here for site cleanup and emergency response personnel at every level of certification.  
 

Tags: 1, 4-Dioxane, DEP, Department of Environmental Protection, environmental, EPA, New Jersey, NJ, Superfund

Find a Post

Compliance Archives

Lion - Quotes

I really enjoyed this training. Even after years on both sides of the comprehension coin, I find myself still learning! The quality of the delivery exceeded much of the training I have received in the past.

Neil Ozonur

Safety Officer

Lion does a great job summarizing and communicating complicated EH&S-related regulations.

Michele Irmen

Sr. Environmental Engineer

The instructor had knowledge of regulations and understanding of real-world situations. The presentation style was engaging and fostered a positive atmosphere for information sharing.

Linda Arlen

Safety & Environmental Compliance Officer

Our instructor was very dynamic and kept everyone's interest. Hazmat shipping can be a dry, complicated topic but I was engaged the entire time.

Kimberly Arnao

Senior Director of EH&S

I like the consistency of Lion workshops. The materials are well put together and instructors are top notch!

Kevin Pylka

Permitting, Compliance & Environmental Manager

I think LION does an excellent job of any training they do. Materials provided are very useful to my day-to-day work activities.

Pamela Embody

EHS Specialist

Much better than my previous class with another company. The Lion instructor made sense, kept me awake and made me laugh!

Marti Severs

Enterprise Safety Manager

This was the 1st instructor that has made the topic actually enjoyable and easy to follow and understand. Far better than the "other" training providers our company has attended!

Lori Hardy

Process & Resource Administrator

The instructor made the class very enjoyable and catered to the needs of our group.

Sarah Baker

Planner

This course went above my expectations from the moment I walked in the door. The instructor led us through two days packed with useful compliance information.

Rachel Stewart

Environmental Manager

Download Our Latest Whitepaper

Find out what makes DOT hazmat training mandatory for employees who sign the hazardous waste manifest, a “dually regulated” document for tracking shipments.

Latest Whitepaper

By submitting your phone number, you agree to receive recurring marketing and training text messages. Consent to receive text messages is not required for any purchases. Text STOP at any time to cancel. Message and data rates may apply. View our Terms & Conditions and Privacy Policy.