Yaah.

When any kind of epoxy "water barrier" refuses to stick to stone or concrete (not certain what the reflecting pool is made of) the main culprit is that the substrate is not thoroughly dry - and if it was concrete it would need to take at least a week to fully dry - and then the epoxy resin itself needs at least 4 days to cure properly.

My bet is that it wasn't a real epoxy resin so much as a "water resistant" heavy resin body block filler (which is made for basement and brick walls) that was slapped on in a hit-and-run, sketchy as fuck, con job on the taxpayers.

The texture sure looks like it and that stuff absolutely can be tinted to any shade.

Sause: 46 years as an industrial painter.