Darius did a great job finding water for me. I really paid attention to his equipment and how it worked - it was fascinating. I learned a lot about water and how it flows and the different layers of rock, etc. AND - he found water on the first try! I appreciated his knowledge and patience and care. He is a total professional as well as being an all-around great guy
Kathy O’Grady / June 2023
                                                                                                                                                                                                                                                                                I had Darius Le Gall, co-owner of GeoH2O do a water location survey of my four-acre property to determine where to drill my new well. The current shallow well ran dry and became redwood root compromised. 
Before I agreed to the contract for his services, Darius thoroughly explained to me the science and technology behind his work, how the equipment was used, where he would be looking for water, and how he charges for his time.  
Darius was prompt, reliable, easy to get in touch with and very fair in his billing for the work he did.  
He was also conservative in his estimate of how much water was below the surface when he flagged the best locations to drill, by most-water expectations (#1 spot) to least.   The #1 spot that he flagged was located over 300 feet away from the original well and Darius estimated 2 to 6 gallons per minute at that location.  
The well driller set up at the exact spot Darius flagged as #1 and my well was subsequently drilled to 140 feet.  I was overjoyed to learn that the output at the driest time of this year (October 2022) was 24 gallons per minute!      
DO NOT waste your money on anything that does not have the science and technology to back it up (witching) or play the guessing game.  The expense of getting the exact location of your best water source is well beyond worth it when considering you are paying the cost of drilling a well and you’ll want to hit water the first time down. 
I highly recommend Darius and GeoH2O to get your best water found!  
Beth Pine / November 2022 

We had a very pleasant experience with GeoH2O. We needed to find water and drill for a well on our property, and the whole process was new and foreign to us. Darius, the owner, personally helped us every step of the way. He explained in detail how the operation would proceed and was honest about any difficulties we might encounter. He is professional and responsive, and his pricing is fair and reasonable. Darius and his geologist partner at GeoH2O reviewed our property's hydrology report and then came to our site with state-of-the-art equipment. After multiple potential spots were identified by Darius, the driller came and found water after the first try. We cannot thank Darius and his crew enough and will recommend him to anyone in the area. 
Irving and Kelly / July 2023