Name: ニュージャージー州はなぜその通りをリッピングしているのか｜VR180 (Why New Jersey is Ripping Up Its Streets | VR180)
Uploaded: 2021-01-14T08:55:01.000Z
Duration: 7 min 4 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

The city's replacing a little of 18,000 lead service lines

When they first started building water and sewer

infrastructures, the sewer they were using,

And later on, they started using lead service lines.

They didn't have these heavy equipment machinery.

Durable, heavy, and they use lead, like I said,

And the late '30s, mid '40s, lead started being scarce.

They were having World War I, World War II.

And the machining was different once they used copper.

they started looking at PVC, the little plastic pipe.

But all the cities like New York City, Chicago, Detroit,

most of the older cities on the East Coast,

they used lead and they transitioned over to copper.

As technology improves, science has improved.

So things that we though were good for us 10 years ago,

If you built a new home, you had to use copper.

If you made a repair on an old lead service

that was leaking, you had to replace it with copper.

In 1986, the Federal Government banned the use of lead

Today that price is between 60 to $80,000,000,000.

So in 1991, they came up with corrosion control,

ways that you can prevent lead from leaching into water.

No raising the PH, putting in orthophosphate

They would create a prophylactic liner throughout the pipe

that would prevent lead from leaching into water.

Which required the city to take a number of steps

And also educate the public about having a lead exceedence.

the US EPA let us know that the corrosion inhibitor that

So Newark, at that time, decided to give out 39,000 free

we rolled out the lead service replacement program.

And a year later, started replacing lead service lines.

We just want to get rid of lead services.

We don't want to keep having to put chemical,

find the chemical 20 years from then they may fail again.

to replace 25 lead service lines per day.

"Are you gonna be available tomorrow morning at 7:00 a.m.?"

We're gonna come and do a pre-inspection the night before.

Letting the homeowner know at seven in the morning today.

meaning they have copper from the meter to the curb,

This crew is actually do a partial in this home right now.

They're gonna do from the street to the curb.

In this house, they're doing a full replacement.

They're using a bullet trenchless technology.

Trenchless technology allows us not to make an open cut.

We're doing a trench from the building all the way

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ニュージャージー州はなぜその通りをリッピングしているのか｜VR180 (Why New Jersey is Ripping Up Its Streets | VR180)

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