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Page 13 of 263

• The Taft School Corporation

  Notice of tentative determination to approve an application for a Dam Safety permit submitted by Taft School Corporation. Intent to waive public hearing. Written comment due by January 29, 2025.

• Radioactive Materials and Industrial X-Ray Device Program

• Radioactive Materials

• Granite Countertops and Radiation

• Mill River Remedial Activities Fairfield CT

• Guidelines for Soil Erosion and Sediment Control

• Volunteer Water Monitoring Program Overview

  CT DEEP encourages groups and individuals interested in helping to conserve and protect our water resources to become volunteer water monitors. The Volunteer Water Monitoring Program utilizes a three-tiered approach to volunteer water quality monitoring, which is also increasingly referred to as 'citizen science' or 'community science'. The three-tiered approach allows for participation by volunteers having a wide range of skills and interest levels.

• Fish Tissue Contaminant Monitoring

  Monitoring of toxic contaminants in tissues of fish and invertebrates has been conducted by DEEP in partnership with the CT Department of Public Health (DPH) since the late 1970s. Efforts have historically included analysis of levels of mercury and polychlorinated biphenyls (PCBs). More recent work has sought to study new contaminants of emerging concern, such as per- and polyfluorinated alkyl substances (PFAS).

• Ambient Benthic Macroinvertebrate Monitoring

  The DEEP Water Monitoring Group has used benthic macroinvertebrate communities to help characterize stream and river water quality since the mid-1970s. Benthic macroinvertebrates are animals without backbones, who inhabit the bottom of rivers and streams, as well as many other waterbody types. These organisms are very well studied and have a long history of use as indicators of water quality. Certain types, including mayflies, stoneflies, and caddisflies, can survive only in the cleanest water quality conditions. Other major groups of macroinvertebrates are true flies, beetles, worms, crustaceans, and dragonflies.

• Cold Water Stream Habitat Map

  Cold Water Stream Habitat Map

• Lake Water Quality Monitoring

  The DEEP Water Monitoring Program conducts ambient monitoring and the related assessment of the State’s waters, including Connecticut's many lakes and ponds. In Connecticut, there are a total of 2,267 lakes and ponds greater than 10 acres in size. The Monitoring Program conducts annual monitoring on approximately 10-20 of these. The type and locations of monitoring during a given year is determined by a variety of factors including participation in regional and national studies as well as support requests from groups within DEEP.

• Beach Monitoring

  The CT DEEP Water Monitoring and Assessment Unit conducts weekly bathing water sampling at 22 state-owned and managed swimming areas.

• Ambient Diatom Community Monitoring Project

• PFAS Surface Water and Fish Tissue Monitoring

  Information on DEEP efforts to monitor PFAS in surface waters and fish tissue.

• Water Quality Monitoring Program Overview

  The DEEP Water Monitoring Group conducts annual water quality monitoring to evaluate the physical, chemical and biological condition of the State’s waters. Group staff collect a wide variety and large quantity of information each year, including water chemistry data, water temperature data, bacteria data, biological community data (fish, macroinvertebrates, diatoms) and tissue contaminant data.