A proposal to use city funds to pay for more than $300,000 in environmental cleanup at the Davenport Grand Hotel was shot down this week by Spokane City Council members, who argued that doing so would be unconstitutional and set a bad precedent for other polluted properties the city has previously owned. Mayor David Condon, who made an informal commitment for the soil remediation to Walt Worthy, the hotel’s developer and owner, said the city could still be responsible for any polluted soil on the land because the city is in the “chain of custody” for the property. He added that the Worthy hotel mitigation was part of his administration’s larger effort to clean up developable lands across the city.