DEEP: Wave 2 Proposed RSR Amendments

Connecticut Remediation Standard Regulations
Wave 2 Proposed RSR Amendments 
The Remediation Division of the Bureau of Water Protection and Land Reuse is proposing amendments to Sections 22a-133k-1 through 22a-133k-3 of the Regulations of Connecticut State Agencies, the Remediation Standard Regulations (RSRs).  The RSRs specify the standards for the remediation of environmental pollution in soil and groundwater.
The RSRs have been in place since 1996 and were first revised in 2013, referred to as "Wave 1."  The current proposed amendments are known as "Wave 2."  The majority of the amendments allow for faster cleanups and increased predictability of remedial outcomes while continuing to protect human health and the environment.
Proposed Remediation Standard Regulations – These are the 2019 Proposed RSRs submitted for public notice.  The public notice process will last 90 days, during which formal comments may be submitted in writing through the eRegulations website (preferred method); or to Brian Thompson at DEEP, Bureau of Water Protection and Land Reuse, Remediation Division, 2nd Floor, 79 Elm Street, Hartford, Connecticut 06106-5127 or at

Summary of Changes – This document summarizes the major changes made in the 2019 proposed RSRs, and the page numbers listed accompany the Red-Line/[Blue-Line] version of the proposed RSRs (linked below).

Table of Contents to the Proposed Amendments to the RSRs and the Red-Line/[Blue-Line] version.

Red-Line/[Blue-Line] version of Proposed Remediation Standard Regulations – This document contains deleted/moved language in bracketed blue text and added/moved language in underlined red text.  Accompanying this document is the Alternative Groundwater Protection Criteria Map in GIS format.  This version of the Revised RSRs is unofficial and made available for the convenience of the reader.  The official version submitted is available in eRegulations on the Secretary of State website.

To ensure that DEEP’s regulatory amendment proposal is clearly articulated to the various stakeholders, DEEP will be offering informational meetings as follows (subject to additions/changes):

 Presentation  Date  Time  Location
Presentation to EBC on Proposed Revised RSRs June 11, 2019 8:00-10:30 am
107 Selden St.
Berlin, CT
Kick-off Presentation on Proposed Revised RSRs July 9, 2019 1:30 – 3:00 pm Auditorium, DEEP Headquarters
79 Elm St., Hartford
Presentation to CBIA on Proposed Revised RSRs July 19, 2019 9:45 am CBIA, 350 Church St., Hartford
Informational Question and Answer Session July 30, 2019 9:30 – 11:30 am Auditorium, DEEP Headquarters
79 Elm St., Hartford
Informational Question and Answer Session August 6, 2019 1:30 – 3:30 pm Kellogg Environmental Center, 500 Hawthorne Ave., Derby
Informational Question and Answer Session August 27, 2019 12:00-1:00 pm SWEP, Hartford
Informational Question and Answer Session September 4, 2019 8:00-10:00 am CEF, Wethersfield
Informational Question and Answer Session September 11, 2019 5:00 - 7:00 pm Sheraton Hartford South Hotel, 100 Capital Blvd., Rocky Hill
Public Hearing September 25, 2019 1:00 Auditorium, DEEP Headquarters
79 Elm St., Hartford

Schedule of Formal Process:

  1. Public Notice of Intent to Secretary of State, beginning the formal public comment period: July 8, 2019 
  2. Public Hearing: September 25, 2019
  3. Close of public comment period: 5:00 pm, October 7, 2019
  4. Hearing Officer’s Report
  5. DEEP notification to all interested parties of availability of final wording
  6. Final proposed regulations to Attorney General for Legal Sufficiency approval
  7. Final proposed regulations to Office of Fiscal Analysis and Environment Committee
  8. Legislative Regulation Review Committee (LRRC) holds meeting on regulatory amendments per CGS section 4-170
  9. After approval of LRRC, regulations filed with Secretary of State per CGS section 4-172 (regulations become final upon filing)
  10. Publication of regulations on the Connecticut eRegulations System

Wave 2 discussion documents and the Risk-Based Decision Making Recommendations are on the Wave 2 Revision Concepts and History webpage.

Content last updated September 12, 2019