Another parent, Laura Collins, said Boulder Valley spent five days remediating schools after the fire, while it took 275 days to remediate her house until it was safe to return.

Source: https://www.coloradohometownweekly.com/2023/03/03/parents-ask-for-additional-contaminant-testing-in-schools-in-marshall-fire-area/

A valuation seen by the Local Democracy Reporting Service puts the cost of remediating the site, excluding the 90-acre SeAH plot, at £482.6m and a nominal value of £1 was placed on the entire site.

Source: https://www.gazettelive.co.uk/news/teesside-news/nao-confirms-could-investigate-teesworks-26950354

That increase follows an £800million rise announced by HS2 in October, including money spent on remediating the terminus site at Euston in London.

Source: https://www.dailymail.co.uk/columnists/article-11871813/HS2-like-Ryanair-rails-shall-just-scrap-asks-Jonathan-Webb.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

"The participation of Yellowknives Dene businesses in remediating the former Giant Mine site fits within these values.

Source: https://www.baytoday.ca/national-news/ottawa-first-nation-sign-procurement-framework-agreement-for-giant-mine-7183488