John Sutter is starting a book on California 's San Joaquin River and watershed . He is going to try to walk and kayak down the river . Those who do have water have to deal with pollution from nitrate , which is linked to blue baby syndrome , kidney disease and other maladies . American Rivers named the San Joaquin the ` ` most endangered '' U.S. river . It starts in the Sierra Nevada and flows into the San Francisco Bay .
John Sutter is starting a book on California 's San Joaquin River and watershed . He is going to try to walk and kayak down the river . American Rivers named the San Joaquin the ` ` most endangered '' U.S. river . It starts in the Sierra Nevada and flows into the San Francisco Bay .