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Whether the pumps in Old City underground garages pump 24/7 or just at peak rainfall periods really doesn't matter because it's at the peak rainfall times that the problem necessitating the $2.6 Billion tunnels occurs. And water that has reached the depth of 30 or 40 feet that's pumped is in addition to the ordinary surface water runoff.

I'm very skeptical about these claims of new underground structures being waterproof and not needing their pumps much, both from experience and the fact that if true such structures would have an effect of raising adjacent water levels by displacing room for ground water.

While it may be difficult to measure sewage there are certainly ways around this perhaps by monitoring sump pump on-times or separately measuring sump pump flows in underground garages.

The fair thing would be to assess the underground parking a fee on either the building owner or the underground parker directly.

This should have already been dealt with in considering new underground structures and retrofitting old ones. Slapping the residents with such a huge increase now is the result of very poor planning (or none).

by Tom Coumaris on Jun 22, 2012 2:12 pm • link • report