Engineered Control Variances
Engineered Control Guidance Document(Effective April 1, 2009)
The February 2009 (Revised November 2010, January 2013) Engineered Control Guidance Document (ECGD) has been developed by the Connecticut Department of Energy & Environmental Protection, Bureau of Water Protection and Land Reuse, Remediation Division (DEEP), with support from the Environmental Professionals’ Organization of Connecticut (EPOC).
An Engineered Control is a permanent physical structure designed to safely isolate pollutants which would otherwise not comply with the self-implementing remedial options allowed in the Connecticut Remediation Standard Regulations (RSRs). The ECGD includes a description of what is eligible to be considered as an Engineered Control under section 22a-133k-2(f)(2) of the RSRs, a description of the information necessary for the preparation of complete and approvable applications, a step-by-step outline of the review and approval process, and supplemental resources provided in the appendices.
Please note: Many Engineered Controls include the maintenance of pavement. The CT Department of Public Health (DPH) recommends against the application of coal tar-based road sealants because they can increase human exposure to carcinogenic polycyclic aromatic hydrocarbons (PAHs). As an alternative, CT DPH recommends an asphalt based sealant, which is low in PAHs.
Examples of Engineered Controls
Examples of Engineered Controls (zip Access) rev. 3-5-13
Engineered Control Variance Forms
Engineered Control Financial Assurance Tools
- Financial Assurance Calculator
- Performance Bond Template
- Conditions for Approval of Performance Bond
- Letter of Credit Template
- Conditions for Approval of Letter of Credit
- Letter of Credit Cover Letter Template
- DEEP MMCA Annual Inflation Factor Calculation Guidance
If you have any questions related to Engineered Controls, please call the Remediation Division at (860) 424-3705.
Content Last Updated October 27, 2020