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Duval County · Well Drilling
Well drilling in Jacksonville Beach, where the fresh water floats on salt
A beach irrigation well draws from a thin lens of fresh water sitting on salt, and the bore is designed to leave that lens alone.
Well Drilling in Jacksonville Beach
- County
- Duval County
- Design
- Purpose, demand, depth, casing, setback
- Permit
- County office, or the City in Duval
- After
- Yield test, disinfection, completion report, lab sample
- Hours
- 7 days a week, 7am to 9pm
What changes in Jacksonville Beach
Under the beach the shallow zone is fresh water resting on seawater, and the lens is thin. An irrigation bore pulled too hard, or set too deep, draws salt up through it and the sprinklers then spray brine on the lawn and the windows. Drilling here starts with a conductivity check on the shallow zone and ends with a pump sized so the well recovers between zones rather than mining the lens.
Jacksonville Beach is on utility water, so the bore is for the lawn, and it is permitted through the City of Jacksonville like the rest of Duval County. The equipment that goes on it is chosen for salt air, because a control box that would last a decade inland is finished in a few years within sight of the ocean.
How the job runs
How a well is drilled here
Every new well is designed before it is drilled: purpose, demand, depth to the water that suits it, casing through the clay where the bore goes to the Floridan, and the setback from any septic system on the lot or next door. The permit is filed with the county office, or the City of Jacksonville in Duval, before the rig is booked. The bore is drilled, cased, grouted, developed until it runs clear and tested for yield. The pump, pitless adapter and pressure tank are sized to that yield and to the demand. The well is disinfected, the completion report is filed and a sample goes to a certified laboratory before anyone drinks from it.
Straight answers
Well Drilling questions from Jacksonville Beach
Can a well at the beach turn salty?
Yes, if it draws harder than the freshwater lens can supply. Sizing to the lot and testing before drilling prevents it.
How deep is a beach irrigation well?
Shallow, within the freshwater lens, and deliberately not deeper. Depth here brings salt, not more water.
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Well Drilling in Jacksonville Beach
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