Not all transformers in the Long Island Power Authority (LIPA) service territory belong to LIPA.  For those that do, no analytical data is available for specific transformers.  However, all distribution transformers owned by LIPA were specified at the time of purchase from the transformer manufacturer to contain a dielectric fluid consisting of mineral oil, not PCBs.  As a result, LIPA’s inventory of transformers typically is expected to either contain no PCBs or low levels of PCBs (typically 0.01%).  The presence of low levels of PCBs could have been caused by manufacturer processes that fabricated mineral oil transformers in close proximity to transformers manufactured to specifically contain PCBs.

Sincerely,