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Gold King Mine (Colo.) waste spill by EPA
This site allows one to look at river information by state or river.
USGS Groundwater Data for the Nation
The Groundwater database consists of more than 850,000 records of wells, springs, test holes, tunnels,drains, and excavations in the United States.
From the EPA. WaterSense help one select water-efficient products that benefit one's wallet and the environment. WaterSense labeled products are backed by independent third party testing and certification, and meet EPA’s specifications for water efficiency and performance.
From the EPA. Learn the issues; Drinking water; Laws & regulations; Our waters; Pollution prevention & control; Resources & performance; Science & technology; Water infrastructure; What you can do