Connecticut Department of Energy & Environmental Protection

Emergency Burn Ban In Effect 10/26/24 - An emergency burn ban is now in effect for all Connecticut State Parks, Forests, and Wildlife Management areas, prohibiting the use of all outdoor grills, firepits, and campfires, and the kindling and use of flame outdoors. DEEP and local agencies are working to contain several active fires across the state. Please avoid all affected State Parks and Forests, as well as the blue-blazed Mattabesett Trail. The Enduro Trail in Voluntown and portions of North Stonington within the Pachaug State Forest are closed at this time. Rocky Neck State Park is also closed until further notice due to a brush fire. Please note that today's forest fire danger report remains at a 'very high' or 'extreme' level. More information about the current fire danger, burn ban and recommended safety measures can be found here

1,4-Dioxane

The Remediation Standard Regulations do not contain numeric cleanup standards for emerging contaminants, but do require remediation using the procedures for Additional Polluting Substances (APS).  Regulated parties and their environmental professionals should consider whether emerging contaminants are constituents of concern when evaluating Phase I information and test for those emerging contaminants where warranted.  Doing so will help avoid uncertainty, audits, and further work in the future.  If emerging contaminants are detected, please contact the Department in advance of submitting APS criteria approval to clarify any issues.  APS criteria for 1,4-dioxane are available on the APS Fast Track form.

Where is it  found?

  • Associated with chlorinated solvent contamination
  • Stabilizer for TCA, possibly other chlorinated solvents
  • Cellulose acetate membrane filters
  • Pharmaceutical industry
  • Laboratories
  • Car wash concentrated soaps
  • Scintillation counting cocktails/ Bray’s Solution
  • Histology tissue preservative
  • Brominated flame retardants 
  • Textiles
  • Pulp, paper, and fiber manufacture, especially coated paper
  • Magnetic tape production
  • Inks and printing
  • Painting, coating and stripping
  • Polymers, plastics, and rubber
  • Loosening agent for hardware
  • Dyes, greases, varnishes and waxes
  • Byproduct of PET plastic, ethoxylated surfactant, resin, and antifreeze production
  • Aircraft deicing fluid
  • Personal care products
  • Landfills

 Analytic Method/Media/Notes

  • EPA Method 522 – drinking water
  • Modified EPA Method 8260 or 8270 with SIM
  • Completely soluble 
  • Leaches readily from soil to groundwater and migrates rapidly
  • Pure product is volatile, but does not volatilize once dissolved in water

Please Note:   New information about emerging contaminants should be expected, as research is ongoing.  You are advised to complete your own research to determine whether emerging contaminants are contaminants of concern at a particular site.

Connecticut

Federal

Organizations

Other States

Contaminants of Emerging Concern

Content last updated January 4, 2020