By James Martin and RTE reporter Ben Davies.BRIAR, Arizona (RTE) The company that is building a new pipeline to deliver arsenic from the Black Hills to the US Midwest could be the “hell” for Jay Z, according to an analyst who said he had not spoken to him about the project.

The new pipeline, called the Black Canyon, would be the largest of its kind in the world, but critics have said it is a risky project that could kill tens of thousands of people and cause environmental damage.

The project has been beset by delays and is estimated to cost $2.2bn.

It is being built in the foothills of the Navajo Nation, near the Bighorn Basin, in a remote area of southern Arizona.

Rising oil prices have raised the prospect of more construction of the pipeline, but it is not clear how much it will cost or how much pollution it will cause.

In recent months, a series of earthquakes in the region have prompted concerns about the pipeline.

The Navajo Nation has hired a consultant to investigate how the pipeline would be constructed and who would oversee its operation, and a number of environmental groups have filed a complaint with the U.S. Environmental Protection Agency about it.

Jay Z is a well-known activist who has been linked to many of the environmental causes and causes that he has fought for.

In February, he said the Black Diamond Pipeline could be a “game changer” for Native Americans.

A report by the Navajo Environmental Protection Board (PEPB) last year said the pipeline was not subject to federal approval and should not be built.PEPTB chief executive Mary Hahn said last month the board would be reviewing the company’s plans to assess the risk posed by the pipeline’s construction and the environmental impacts associated with the project, including possible spillage.

Pipeline opponents say it would be dangerous and would kill hundreds of thousands or millions of people.

They say the pipeline is needed to export oil to Asia and Africa.

The company behind the pipeline said in a statement last week that it is committed to ensuring that all environmental requirements are met, but that there is no time frame for any review of the project’s environmental impact.

“We will do everything in our power to comply with all the regulatory requirements,” the statement said.