Where I'm at right now: I have spoken directly to the Director of Public Works and he says that he must speak with someone in the Groundwater Management Department (whom I have also spoken with directly) to see what type of system can be done and give me a timeline.

There have been no issues since and I knew I was relieved when the inspector said it was just above ground water not able to get away from the house. 

The majority of underground tanks (up to 80%) leak and if it does then you have soil and potentially ground water contamination to deal with.

They run for miles and collect alot of groundwater.

This is South Florida, so we have a very high water table, and in the summer when it rains a lot, the water table is so high, that if you drain all the water from the pool, the hydrostatic pressure of the water in the surrounding ground will actually push the concrete pool's shell out of the ground.If one fills the pool with water, will it settle back down as the ground water recedes during a dry spell?

One thing that can help you determine what you're getting into is having a core sample taken of the property. it will tell you soil type, groundwater and rock depth. if some rocks are big enough you might need controlled blasting. if your basement is below the stream bed grade wise, you would likely have to be pumping water 24/7 during the construction part. im not sure how well a poured concrete wall with the waterproofing on the outside will stand up to the water, but of course it would be better than a block basement. builders would reccomend under drains to drain the water. the best way to do this is mechanically, without a pump or you could still wind up pumping water 24/7 after construction is complete.

I am not going to type what I think of this.The BestMeeting Nina, the 94 year old woman next door who still drives to the store herself and is very sweetly Texas strong willed who came over to thank me for cleaning up "That mess"Up Next weekLast of the demoDumpster gets filledFramers / FramingElectrical workRough plumbing Earthwork with a Bobcat to protect the house better next time we get a 12" dump and solve the ground water penetration issues.

Flushing household chemicals, gasoline, oil, pesticides, antifreeze, and paint can stress or destroy the biological treatment taking place in the system or might contaminate surface waters and groundwater.

Because of groundwater ingression via the backyard (another issue altogether), tenants have had to pull up the laminate flooring, exposing the original vinyl.

Are you going to have soil,ground water, etc around the tank tested to make sure there wasn't any leaks or spills?