SSFL - Test AREA FOUR | military, industrial area

 military, industrial area

Area IV of Rocketdyne's Santa Susana Field Lab (SSFL) property, in the Simi Hills, above Simi Valley.
en.wikipedia.org/wiki/Atomics_International
acmela.org/rocketdyne.html
en.wikipedia.org/wiki/Santa_Susana_Field_Laboratory
It consists of 290 acres owned and operated by Boeing-Rocketdyne’s and 90 acres leased by the Department of Energy (DOE). DOE and its contractors operated several nuclear reactors and associated fuel facilities and laboratories within this area, including the ill-fated Sodium Reactor project.
en.wikipedia.org/wiki/Sodium_Reactor_Experiment
This area also includes five surface water discharge outfalls monitored under the National Pollutant Discharge Elimination System (NPDES).

Radioactivity at the SSFL has resulted from, the operation of ten reactors and seven criticality test facilities, fuel fabrication, reactor and used fuel disassembly activities, small scale laboratory work, and onsite storage of nuclear material. Nine of the ten reactors operated at power levels below one megawatt (1 Mw). The ten reactors and criticality test facilities have all been dismantled and removed from the SSFL.
There have been nine nuclear power related incidents at the SSFL.
The tetralin explosion of 16 August 1959 was the result of chemical contamination in the Sodium Reactor Laboratory, and resulted in a partial melt-down of the reactor core, which lead to the release of radio-active material into the surrounding environment.