Stream conservation group dedicated in protecting and improving the Richland Creek ecosystem, Nashville, TN. A watershed-based, community-supported stream conservation group dedicated to sustainability, clean water and preservation of the Richland Creek ecosystem. To educate, advocate, and participate in activities and scientific research that improve, protect, and enhance the sustainability of the watershed.RCWA is a watershed-based, community supported stream conservation group (public charity) focused on environmental sustainability of the Richland Creek watershed, and dedicated to providing leadership and action for long-term restoration and preservation of its ecosystem.