Cost of New Well. DIY?
We have had severe problems with our well this year, including the pump silting up once, apparently because of collapses within the well. The well is at least 50 years old. It is about 35 feet deep, with water starting at about 16 feet. It was strong in the past, more than 200 gallons per minute, but has slowed considerably this year, which has been very dry so far. The soil is almost solid clay.
We've considered trying to improve the well, but most everyone we talk with says it is past its useful lifetime, and improving it may not work at all, or only for a limited time.
So, we're looking at getting a new well. One local company gave us two estimates for a 200-foot well, one for an 8 5/8-inch steel-cased well ($16,093) and one for 6-inch PVC well ($11,530). The difference is mostly in having to drill a larger hole for the steel pipe (17 inches vs. 12 inches for PVC) and the material cost of the steel casing vs. the plastic. The estimate includes cost of permit, all drilling materials, cement seal extending through the clay layer, all labor, and chlorination and preliminary development of the well.
From my past experience, both these estimates seem quite high, but I have no direct experience with this type of well in this part of the country (Northern California).
Finally, I am considering drilling my own well, using equipment similar to what I used while working overseas repairing tsunami and typhoon damage. I've found one company that looks interesting, hydratek, which offers a line of rigs that look much better than what we had overseas. See the link below.
All opinions and suggestions, about the estimate above or my wacky plan to drill it myself, are greatly appreciated.
Here is a link that might be useful: DIY well drilling