A Year of Rain at Mother Earth Heritage

We installed a piezometer at Mother Earth Heritage in June of last year mostly to satisfy our own curiosity about whether the recharge pits we'd built were doing anything. The answer, after one full monsoon cycle, was yes but unevenly -- the water table near the eastern recharge pits rose 2.3 meters by October, while a borewell 400 meters west barely moved.

The difference turned out to be a shallow rock shelf running diagonally across the property that nobody's original soil survey had flagged, because soil surveys look down, not sideways. We only found it by comparing recharge rates plot by plot, which is a very unglamorous way to spend a rainy season.

The practical change: two additional recharge pits went in west of the rock shelf this year, and every subsequent Two Frogs water-table study now maps subsurface rock before finalizing pit placement. It cost us a redesign and about six weeks. It's the kind of thing a brochure never mentions and a resident's borewell absolutely will.