Napa Valley has lush vineyards and wineries – and a pollution problem

Reports and emails show a landfill at the top of a hill is leaching dangerous toxins into the Napa River

Famous for its lush vineyards and cherished local wineries, Napa valley is where people go to escape their problems.

When you first get there, it's really pretty," said Geoff Ellsworth, former mayor of St Helena, a small Napa community nestled 50 miles north-east of San Francisco. It mesmerizes people."