
This is the site of the former Citizens Gas Company's Manufacturing Gas Plant, one of three such MGPs that once operated along the Gowanus Canal.
The Citizens Gas Company began operations in the late 1860's and then passed into the ownership of Brooklyn Union Gas (BUG) in 1895, which demolished the plant in the 1960's, when the MGP ceased operation. In subsequent years, BUG was merged with Keyspan, which was then acquired by National Grid in 2007.
However, the remediation can hardly be called a clean-up. It would be more appropriate to call it a containment, since most of the coal tar will remain in the soil forever.
Just recently, the Carroll Gardens / Gowanus community learned that DEC had allowed National Grid to significantly alter and degrade the remediation, sparking concerns that future residents would be exposed to the remaining contamination.
A look at National Grid's online repository for the Citizen's Gas Site documents reveals exactly how dangerously contaminated the site is.
According to a Remediation Investigation Report from 2005 by environmental consultant firm GEI, "groundwater moving through the areas of tar-saturated soil and residual tar will dissolve the BTEX components and light molecular weight PAHs (e.g., naphthalene). The resultant groundwater plume will migrate in the direction of groundwater flow. "
The study also revealed that in some spots, soil vapor contained elevated levels of benzene, toluene, and xylenes.
The most concerning information, however, can be found in a document entitled 2005 Final Remedial Investigation for Public Place, which can also be found in National Grid's online repository.
The community has known for a while that coal tar from Public Place has migrated into the adjacent Gowanus Canal. Local residents therefore asked if the contamination could have found its way past the other three boundaries of the site.
If one studies the report carefully, the answer, alarmingly, seems to be "YES".
The 2005 report clearly shows that pockets of coal tar have oozed underneath Smith Street, Huntington Street, as well as 4th Street at Hoyt Street, where it was detected underneath a row of buildings.
Yet, neither National Grid, nor NYC DEC admitted this important fact to local residents, though they were asked at numerous occasions at public meetings.
Below, we will guide you through the documents from the 2005 Final Remedial Investigation to reveal that contamination from the former MGP site at Public Place is no longer confined to its boundaries.















































