John Martin Reservoir
A structure that has placed an administrative call in Division 2: its priority, its water source and whether it is calling now.
About this structure
John Martin Reservoir is the structure Colorado DWR identifies as WDID 6703512. The first two digits, 67, are Water District 67 (Arkansas: Las Animas to Stateline), in Division 2, the Arkansas basin. Its call is on Arkansas River.
BasinMind first saw it on the division's active call list on October 3, 2026 and most recently on October 4, 2026.
What its call means
While its call is on, rights on the affected stretch that are junior to its priority (April 8, 1905, administration number 20186.17015) may be ordered to reduce or stop diverting until it is satisfied; senior rights keep diverting.
A WDID names a structure, not a water right: one ditch can hold several rights with different priorities, and the call is placed with one of them. More in What is a water call?, Is my ditch in priority? and What is a WDID?.
Nearby
The nearest stream gauges with a BasinMind page: Arkansas River below John Martin Reservoir (<1 mi), Purgatoire River near Las Animas (15 mi) and Arkansas River at Las Animas (15 mi).
Other structures that have called on Arkansas River: Sunnyside Park Ditch, Fort Lyon Canal, New Salida Ditch and Arkansas River Compact (Colorado-Kansas State Line).