The Rincon tribe has taken a major step to protect water quality on the reservation and downstream, earning approval by the Environmental Protection Agency (EPA) to administer surface water standards on the reservation. According to Chairman Bo Mazzetti, in recognition of tribal sovereignty, the federal Clean Water Act (CWA) encourages tribes to establish water quality standards. Rincon was able to document and prove to the EPA that the band has the desire and ability to protect its water.