Questions About Norwalk Power LLC

What is the brief history of the plant? 

CL&P acquired the property in 1953, built the plant in the late 1950’s and commissioned the plant in 1960. The plant burned coal from 1960-1972, then oil until 2013. NRG acquired the property from CL&P in 1999 and ran it as a peaker plant. NRG de-commissioned and mothballed the plant in June, 2013. The site was originally an island, known as Manresa, and is still known locally as Manresa Island.

Where is the property, how large is it and what are the property taxes? 

The property sits directly on Long Island Sound and Norwalk Harbor in Norwalk, Connecticut. The property is 125 acres. NRG had been paying $675,000 annually in property taxes but is currently negotiating with the City of Norwalk to lower their taxes on the Manresa property.

What are NRG’s public statements on the future of the property? 

In a June, 2016 phone conversation with the Manresa Association President, NRG executives stated that “the property is not being actively marketed and that NRG is focused on keeping the site secure, safe, and working with the DEEP to develop remediation plans.” When asked about the potential future use of the property, the NRG executives said that “this is to be determined”.

Are any citizens groups working on the future of the property? 

The Manresa Association, representing more than 900 Norwalk households, was established in October, 2013. The Manresa Association FAQ’s are attached.

Does the site impact any wildlife of significant value? 

State Endangered Species Act Species

Among the 148 species of birds documented to occur on or adjacent to Manresa Island, 20 are listed by the State of Connecticut Department of Energy and Environmental Protection as Special Concern (SC), Threatened (T), or Endangered (E) under Connecticut’s Endangered Species Act. These “state-listed species” are listed as follows with their respective designations: Common Loon (SC), American Bittern (E), Great Egret (T), Snowy Egret (T), Little Blue Heron (SC), Yellow-crowned Night-Heron (SC), Glossy Ibis (SC), Bald Eagle (T), Northern Harrier (E), Sharp-shinned Hawk (E), American Kestrel (T), Peregrine Falcon (T), American Oystercatcher (T), Common Tern (SC), Common Nighthawk (E), Purple Martin (T), Brown Thrasher (SC), Northern Parula (SC), Savannah Sparrow (SC), and Eastern Meadowlark (SC).

What remediation programs are in place? 

The CT DEEP is supervising two remediation programs:

What is the remediation status of the property? (DEEP map attached) 

Based on research of the DEEP files, the following twelve Areas of Concern (AOC) are noted. The following recap was prepared by the Manresa Association, and reviewed by DEEP’s Amanda Killeen in February, 2014.

Area of Concern (AOC) 1: Former Ash Disposal Area (55 acres)

AOC 2: Former Gasoline Underground Storage Tank

AOC 3: Fuel Oil Tank Farm

AOC 4: Former Coal Storage Area

AOC 5: Former Fuel Oil Underground Storage Tanks (UST)

AOC 6: Internal Combustion Unit/Blow Down UST

AOC 7: Existing Septic Leach Field

AOC 8: Former Septic Leach Field

AOC 9: Electrical Equipment

AOC 10: Former Equalization Basin EB-2 (boiler maintenance discharge water)

AOC 11: Long Island Sound Sediments

AOC 12: Container Storage Area

CT DEEP noted additional remediation efforts to address the following:


Semi-annual Ground Water and Surface Water Monitoring

Manresa Island Map

Manresa Island Map