Thomas Chapin
Science and Products
New perspectives on a 140-year legacy of mining and abandoned mine cleanup in the San Juan Mountains, Colorado
The Gold King mine water release that occurred on 5 August 2015 near the historical mining community of Silverton, Colorado, highlights the environmental legacy that abandoned mines have on the environment. During reclamation efforts, a breach of collapsed workings at the Gold King mine sent 3 million gallons of acidic and metal-rich mine water...
Yager, Douglas B.; Fey, David L.; Chapin, Thomas; Johnson, Raymond H. High-frequency, long-duration water sampling in acid mine drainage studies: a short review of current methods and recent advances in automated water samplers
Hand-collected grab samples are the most common water sampling method but using grab sampling to monitor temporally variable aquatic processes such as diel metal cycling or episodic events is rarely feasible or cost-effective. Currently available automated samplers are a proven, widely used technology and typically collect up to 24 samples during...
Chapin, Thomas Robust, low-cost data loggers for stream temperature, flow intermittency, and relative conductivity monitoring
Water temperature and streamflow intermittency are critical parameters influencing aquatic ecosystem health. Low-cost temperature loggers have made continuous water temperature monitoring relatively simple but determining streamflow timing and intermittency using temperature data alone requires significant and subjective data interpretation....
Chapin, Thomas; Todd, Andrew S.; Zeigler, Matthew P.