NotMe wrote:

I hear it from clean water action group, politicians, companies, and
property owners. Hot topic around here. Now they want to " send water
runoff from sewage systems to underground storage somewhere ?

I worked in the oil patch when I was in engineering school and off/on
in the years following. I didn't trust industry statements back then
and I've seen nothing in the between times to change that position. This
goes double for pipelines and refineries.

Underground storage will work if the storage is in a salt dome. Been
used for decades without problem if done right.

One problem salt domes don't often occur where they are needed most.

Interesting facts about salt (dome) mines:
* Only mine that doesn't require two entrances, because there's never been a
cave-in in a salt mine.
* Salt mines have 0% humidity, constant temperature, and are vermin free.
* The average salt dome contains six cubic miles of salt. All of the people
on earth, if stacked up like cordwood, would fit in ONE cubic mile. There
are over 2,000 mapped salt domes in the Gulf of Mexico area.

In 1980, a Texaco oil drilling rig commenced operation on 10-foot deep Lake
Peigneur, Louisiana. At about the 500-foot level, something went terribly
wrong. The drilling barge began to vibrate. Presently a whirlpool formed
beneath the rig. The workers immediately jumped into their boats and headed
for shore. They all didn't make it.

The reason they didn't make it was that the lake disappeared, grounding the
boats in the mud of the (former) lake bottom; the workers had to mud-walk
the rest of the way. The malestrom sucked up the drilling barge and eleven
other supply barges, caused a 164' waterfall (the highest waterfall in
Louisiana), and did whopping damage to the land around the lake.

What caused all this was the drilling bit puncturing the ceiling of a salt
mine!

No injuries or fatalities were reported, although three dogs were apparently
lost. Luckily, there were no cats in the area.