Those look like storm Water storage tanks. I forget the company that made those and from what I understood went out of business because they would not meet civil specs for any state the presented them too. Something about not being an H-10 weight loading or above. Others like Storm Tank or Atlantis make similar products. places like Ferguson irrigation carries a few brands.
Basically What you do is lay those out in a large pit under say a parking lot. You then cover then in gravel and then a pours pavement So storm water flows into the open cavities and not off the property. They were designed to be "casket" top down. The idea is you collect and reclaim all run off water and filter it on site. There is quite a few counties out in California that make s this a required practice. I designed systems like a parking lot for a car dealership with another brand all the time.
Yahoo IM - kingsuv00
If the listening level is too loud, please inform the driver, so he can promptly pull over, and let you out.
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