Climate Change
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PFAS is an emerging contaminant affecting wastewater treatment plant effluent in the state of CT. This information is to inform of sampling that has been completed, possible future effluent limits for municipal wastewater treatment plants in CT and approved sampling techniques.
NDDB Species Observations via Survey123
Questions and answers on how to submit listed species observations to the Natural Diversity Data Base via Survey123.
The DEEP is interested in obtaining new and updated information on critical natural resources from Connecticut's citizens.
About the Natural Diversity Data Base
The Natural Diversity Data Base is a program for the protection of Connecticut's native biological diversity, with emphasis on our most vulnerable species and ecosystems.
Requests for NDDB Environmental Reviews
DEEP performs hundreds of environmental reviews each year to determine the impact of development projects on state-listed species and to help landowners conserve the state's biodiversity.
Licensed Environmental Professional (LEP) Verification Audit Program
The purpose of the Licensed Environmental Professional (LEP) Verification Audit Program is to ensure that the opinions ("verifications") of the LEP are based on an appropriate understanding of the environmental conditions of the site and that the verification is in compliance with all applicable statutes and regulations, including the Remediation Standard Regulations (RSRs).
Release Based Topical Subcommittee Meetings
Release Based Regulations Topical Subcommittee Meetings lists the meeting dates, links, and associated materials.
Release-Based Cleanup Legislative Authorization and Background
2021 LEP Board Meetings Agendas and Minutes
2024 LEP Board Meeting
Notices of Activity and Use Limitation
A Notice of Activity and Use Limitation (NAUL) is a type of Environmental Use Restriction (EUR) that complies with the requirements of section 22a-133o of the Connecticut General Statutes, section 22a-133q of the Regulations of Connecticut State Agencies, and the RSRs.