A Sealed Tank Fills Itself: The Serano Cistern Mystery Titelbild

A Sealed Tank Fills Itself: The Serano Cistern Mystery

A Sealed Tank Fills Itself: The Serano Cistern Mystery

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A Sealed Tank Fills Itself: The Serano Cistern Mystery

He found roughly four thousand gallons of water in a sealed concrete cistern in the middle of a drought, with soil cracked and stock ponds empty for 143 days - so how did it appear and then quietly lose 380 gallons without anyone touching the lid? This episode follows that impossible water, the lab results that ruled out the ranch’s well and surface sources, and the single eight-inch gap in the seal that might be the only clue.

In this episode, you will hear the timeline of discovery, the measurements taken by a reporter and a rancher, and the laboratory analysis that showed elevated calcium carbonate and low sulfate - pointing to an unmapped source. What could an underground or hidden pathway look like when four thousand gallons arrive and then begin to pass through a sealed tank?

Person: Russell Callahan
Date: February 11, 2019
Location: eastern draw, Serano ranch, Presidio County, Texas
Event: discovery of cistern full to within 6 inches of the lip (about 4,000 gallons)
Analysis: water sample showed low sulfate and elevated calcium carbonate

- Ground had not received meaningful rainfall for 143 days prior to discovery.
- The concrete cap measured about three feet across with a silicone seal intact on three sides.
- The northern silicone gap ran roughly eight inches long and up to three millimeters wide.
- Reporter Richard Reed measured an eleven-inch drop over six days, equal to about 380 gallons lost.
- The ranch’s active production well draws from the Rustler aquifer at 310 feet, but its profile did not match the cistern water.

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