The Paleo-Bell River: North America’s vanished Amazon | EARTH Magazine

https://www.earthmagazine.org/article/paleo-bell-river-north-americas-vanished-amazon

A generalized reconstruction of Paleo-Bell River drainage and evolution of other major rivers in western and northern North America, after James Sears and others. By the Miocene, the Paleo-Bell River Basin reached its greatest extent. Rifts like the Rio Grande and Great Basin created an ancestral Colorado River that was yet to establish a course to the Pacific (location 1). Instead, it flowed north from the Grand Canyon region through structurally controlled valleys and into the larger Paleo-Bell River Basin via an ancestral Yellowstone River, whose gravels cap the Cypress Hills. This route was blocked by eruptions of lava in the Snake River Plain (location 2) associated with the Yellowstone Hot Spot. Repeated glaciation starting about 2.6 million years ago diverted north-flowing rivers like the Paleo-Yellowstone along ice sheet margins (location 3) to form the Missouri River. The ice sheets also disrupted the Paleo-Bell River Basin, causing river sedimentation to cease in the Saglek Basin. The Mackenzie River Basin was created, leaving the Saskatchewan/Nelson River Basin as the last remnant of North America’s Amazon. Credit: K. Cantner, AGI and Lionel Jackson, based on Sears, GSA Today, 2013.

From stltoday.com

https://www.stltoday.com/news/local/govt-and-politics/parson-signs-law-setting-up-funds-for-radioactive-waste-probe/article_5962ba0a-6ac9-5d82-941a-fdad2212d872.html

Republican Gov. Mike Parson, who was sworn in on June 1 after the resignation of Gov. Eric Greitens, approved the proposal championed by Sen. Maria Chappelle-Nadal, D-University City.

The measure will allocate $150,000 annually to the Department of Natural Resources to probe sites like the West Lake Landfill in north St. Louis County, where radioactive material was dumped more than 40 years ago.

West Lake Landfill Superfund Site is an approximately 200-acre, inactive solid waste disposal facility located in Bridgeton, Missouri

The EPA thinks the best choice is alternative 4. The plan calls for about 70% of the waste would be removed from the site by digging down 16 feet deep. Then a permanent cap would be placed on the area. It would cost about $246 million and take 5-years to implement.

Many residents said a partial removal is only a partial solution and when over 1,000 residents were asked during the meeting who would like alternative 4 not one person raised their hand.

3
5 years to fully implement at an estimated cost of $236,000,000. The EPA has identified this preferred
alternative over 7 others that were evaluated in the RIA/FFS — including no action, two cap-in-place
alternatives, and five excavation alternatives — each of which is described in greater detail below. The EPA
believes that this preferred alternative is protective and represents the best balance of the criteria prescribed
by the CERCLA, as amended, and the NCP.
The EPA is issuing this proposal as part of its public participation responsibilities under Section 117 of CERCLA
and 40 C.F.R. 300.435(c)(2) of the NCP. This proposal is intended to inform the community of the EPA’s
preferred alternative and to solicit public comments relating to the remedial alternatives evaluated, including
the preferred alternative. The final decision to amend the ROD will be made after consideration of the
comments received and any new information raised during the public comment period. Therefore, the public
is encouraged to review and provide comment on all remedial alternatives.
The Administrative Record file, including the RIA/FFS reports, is available on the EPA’s website at https://
semspub.epa.gov/src/collections/07/AR/MOD079900932. The EPA encourages members of the public to
review these documents to obtain facts about the Site and the activities that have been conducted as part of
the Superfund process.
The West Lake Landfill Superfund
Site is an approximately 200-acre,
inactive solid waste disposal
facility located in Bridgeton,
Missouri (Figure 1). T
,
39,000 tons of (potentially
contaminated) surface soil
8,700 tons of
.
U.S. Nuclear Regulatory
Commission (NRC), as successor to
the AEC, performed and/or
commissioned multiple site
investigations

Residents voice support for plan to remove all radioactive waste from West Lake Landfill – FOX2now.com

http://fox2now.com/2018/03/06/residents-voice-support-for-plan-to-remove-all-radioactive-waste-from-west-lake-landfill/amp/

The EPA thinks the best choice is alternative 4. The plan calls for about 70% of the waste would be removed from the site by digging down 16 feet deep. Then a permanent cap would be placed on the area. It would cost about $246 million and take 5-years to implement.

Many residents said a partial removal is only a partial solution and when over 1,000 residents were asked during the meeting who would like alternative 4 not one person raised their hand.”

Yet another Superfund site….