Liz Purchia, associate administrator for public affairs at the US Environmental Protection Agency, is stepping down to join her brother's San Francisco PR shop Purchia Communications.

liz purchiaPurchia was an A/E at Hill+Knowlton Strategies in DC before joining the fledgling Obama campaign in Iowa in 2008. She served the administration as deputy press secretary at the US Dept. of Agriculture and worked Obama's re-election and inaugural.

She landed at the EPA in 2014 as press secretary before moving up to acting associate administrator for PA.

Brian Purchia is a former digital strategist for Burson-Marsteller, spokesman for Change.org and staffer to San Francisco Mayor Gavin Newsom.

Liz Purchia is based in DC.

Politico first reported the move.

Roxanne Smith is principal deputy associate administrator for PA at the EPA.