BASSETT, CA (KCAL/KCBS/CNN) - Investigators believe gruesome discoveries at two sewage plants are connected.
The upper body of a woman was found Monday in a plant near the City of Industry.
Authorities said they believe it matches human remains recovered over the weekend.
"During a check for a plug in a line, they discovered a human torso," said Lt. Mike Rosson of the L.A. County Sheriff's Department. "That human torso appears to be related to the torso or remains that were found in Carson on Saturday morning."
When firefighters got close enough to the body that was found inside a sewage storage tank in the City of Industry, they discovered that the head was still attached, badly mangled but still attached.
They are convinced that the leg and lower torso that was found in Carson belongs to the same body.
"There is a direct link between this sanitation district processing area and Carson's," Rosson said. "The body appears to be a female, possibly Hispanic."
Raw sewage is treated at both these plants.
It is then treated and sent out to the ocean or used as recycled water, not for drinking water.
And none of the sewage that gets there arrives from a storm channel.
"Anything coming into this plant comes in through a 72-inch line and goes through a centrifugal pump, so you can imagine what kind of damage to a large ... or a person's body would happen going through a centrifugal pump," Rosson said.
The only way, according to the lieutenant, for someone to get into the system is through a manhole cover or a sewer line, not through a storm channel.
"We are treating it as a homicide right now, but there's a lot of information that has to be unearthed to determine the actual cause of death and what's behind it," Rosson said.
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