Hello everyone and thank you for the responses. Just to follow up on, I do not know if this is solid throughout the conduit, or just around the stub-ups. My HOPE is, it's just around the stub ups. I cannot verify if it is calicium build up at this point, I plan on getting some analysis performed to verify this. Our current thought is, it's just a very bad case of efflorescence. Around this area is very high hydrostatic pressure, so that's what we're basing it on.
We can't say for certain if it's bad concrete, although this has happened at more than on facility, and the inspection reports have not indicated anything problematic with the concrete pours.
Since this is happenend at two different remote sites, industrial leaking acids or similar would seem remote. In fact, the pictures posted are from a facilty that is in a very rural area.
I agree, perhaps Ghostbusters has paid a visit. :grin:
Regarding the Rotor-roter should that bridge be crossed if we get to it, wouldn't their process damage the conduit? My thinking is, if this is impossible to chemically decompose, then the last ditch effort would be Rotor-roter.
Here are some more picutres.