Possible Title V and ground water contamination issues, may need a new foundation.

In fact most land does not have water rights aside from ground water for inside domestic use only.Your other questions are very broad and are difficult to answer.

Depending on local codes, you may be able to install an in-ground vault and sump pump that removes ground water and pumps it outside the footers of the house.

However, it may be realistic to require that in the warmer months they only plant crops that use less water- there are some that are quite profitable.My educated guess- is this would reduce AZ water use by 5-10%, which is quite significant.All the above being said, areas that have an abundance of groundwater, like Sedona, are in great shape for water.

Sometimes basements have seepage because of high ground water levels. 

Outside of the chance that someone filled the duct system, either intentionally or by mistake, with water, the only explanation is a high ground water table that has allowed the water to leak in.

We look especially good when compared to California - AZ passed its Groundwater Act in 1980; CA just passed its first groundwater legislation last year.

Park fee's School Fees and any other fee's they can think of.. then you have your building permit fee IE plan check and the actual building permit that is usually 2 to 3k. depending on size.. so all in this can run a low of about 15k to 50 to 70k depending on jurisdictionPerk test is a Peculation of the soil  test  IE  how quick will water be absorbed.. in heavy clay soils this can be an issue along with very high ground water.

You do not have to share your Phase I findings with the seller, so if it winds up being relatively free of potential soil and ground water pollution or contamination, you may be able to get a below market deal. 

Ground water?