Drilling a new well in Lake County, Florida involves three overlapping layers of work: permit coordination with the St. Johns River Water Management District, site evaluation to predict the right depth and casing design for your specific location, and post-drill testing to confirm water quality before you connect a treatment system. Lake County sits at the northern end of the Lake Wales Ridge and contains both the Upper Floridan Aquifer (the main drinking water source in the county) and a shallower surficial aquifer that is not potable in most residential areas. Domestic supply wells target the Upper Floridan, with most completions in the 80 to 200 foot range depending on where in the county you are. Quality Filters And Pumps drills residential and irrigation wells throughout Lake County under Florida Water Well Contractor License #7494, with Chase Norris personally overseeing every project.
Lake County Aquifer Geology: What You Are Drilling Into
Lake County is underlain by the Floridan Aquifer System, one of the most productive limestone aquifer systems in the world. The Upper Floridan Aquifer is the target for nearly all domestic supply wells in the county. Above it sits a thin layer of surficial sands and clays that contain a shallow perched aquifer in some areas; this surficial water is generally not suitable for drinking and is separated from the deeper productive zone by an intermediate confining unit of varying thickness.
The western part of Lake County, from Clermont through Minneola and Groveland toward the Polk County line, sits on the Lake Wales Ridge. This ridge is a karst highland with significant sinkholes, solution channels, and caves within the limestone. Drilling here requires attention to void zones that can cause lost circulation during drilling; a competent contractor will use appropriate drilling muds and casing placement to stabilize the borehole through these zones. The eastern lake district around Eustis, Mount Dora, Tavares, and Leesburg has a somewhat gentler karst profile and more consistent well completion depths.
Umatilla and the northeastern quadrant of the county typically access the Floridan Aquifer at shallower depths, in the 80 to 130 foot range, because the confining unit thins as you move toward the Ocala Platform. The Ocala area to the north has some of the shallowest and most artesian Floridan wells in the region; this geology extends into northeastern Lake County.
SJRWMD Permits: The Process and Timeline
Lake County falls within the St. Johns River Water Management District (SJRWMD). Any new water well drilled in the county requires a well construction permit from SJRWMD before drilling begins. The permit application requires information about the intended use (domestic, irrigation, commercial), proposed depth and casing diameter, and the state license number of the drilling contractor.
Permit processing through SJRWMD typically takes one to two weeks for standard residential applications. We handle the permit application as part of every well drilling project; you do not need to contact the district yourself. After drilling, we submit the completion report (the well contractor's record of actual depth, casing installed, and water-bearing zones encountered) to SJRWMD to close the permit.
The Lake County Health Department may separately require a bacteriological and chemical water quality test before the well can be placed into domestic service. We coordinate this testing and can recommend a licensed laboratory for the analysis. For a full overview of the statewide permit and regulatory framework, see the Florida well permits guide.
Well Depth by Area: Leesburg, Mount Dora, Clermont, Umatilla, and Surrounding Communities
There is no single answer to how deep a well needs to be in Lake County, because depth varies significantly by location:
- Leesburg and The Villages area (south-central Lake County): The Floridan Aquifer is typically reached in the 100 to 180 foot range. Artesian conditions (water rising on its own under natural pressure) are present in some areas.
- Mount Dora, Eustis, Tavares: Eastern lake district wells usually complete in the 90 to 150 foot range. This area has a well-documented Floridan Aquifer profile and generally consistent well yields for domestic supply.
- Clermont, Minneola, Groveland (Lake Wales Ridge): The ridge terrain requires more site-specific evaluation. Void zones in the karst can complicate completions; some wells here run 150 to 250 feet. The water quality in this area often has slightly higher hydrogen sulfide levels.
- Umatilla, Paisley, northeastern Lake County: Shallower Floridan completions in the 80 to 130 foot range are common. Water quality in this sub-region tends toward moderate hardness and lower sulfide than the western ridge areas.
These are general ranges based on our field experience. Actual depth is determined during drilling. We quote a depth range for every project based on the site evaluation and available SJRWMD well completion data for the immediate area.
What the Drilling Process Looks Like
A typical residential water well project in Lake County follows this sequence:
- Site evaluation: We visit the property to assess utility setbacks, potential contamination sources, access for the drill rig, and to review local well completion data for your specific neighborhood. This is the stage where we identify any karst or geology concerns specific to your location.
- Permit application: We submit the SJRWMD well construction permit application. Permit-in-hand is required before drilling begins.
- Drilling and casing: The drill rig mobilizes to the site. We drill to the productive zone in the Floridan Aquifer, set the steel well casing to the required depth, grout the annular space per SJRWMD requirements to prevent surface water from entering the well, and develop the well by pumping it clear of drilling fluids.
- Pump installation: A properly sized submersible pump and pressure system is installed after well development. Pump sizing is based on the estimated household water demand and the well's measured yield. For the pump side of the project, see the pump installation and repair service page.
- Water testing: We pull a water sample for laboratory analysis before connecting the well to the household supply. If treatment is needed, we recommend a system based on the test results. See the water testing service page for what the test panel covers.
Water Quality in Lake County Wells: What to Test For
Lake County Floridan Aquifer water varies in quality by sub-region, but most homeowners encounter one or more of these characteristics:
- Hardness: The most universal issue. Lake County Floridan water ranges from moderately hard to very hard (roughly 15 to 35 grains per gallon depending on location). A water softener is one of the most common additions after a new well. For guidance on softener installation and sizing, see our water softener installation guide.
- Hydrogen sulfide (rotten egg odor): Present in varying concentrations across the county, more common in the western areas near the ridge. Treated with air injection, aeration, or catalytic carbon filtration. See the iron and sulfur treatment guide for an overview of treatment options applicable to Lake County.
- Iron: Dissolved iron (ferrous) is common in the Floridan Aquifer throughout Lake County, particularly in areas where the water passes through iron-bearing limestone. Levels above 0.3 mg/L cause staining on fixtures and laundry. An iron filter is the standard treatment.
- Tannins: Surficial aquifer wells and some shallower Floridan wells in the northeastern part of the county can show tannin discoloration. Tannins are organic compounds from decomposing plant material; they produce a yellow-to-brown color and a faintly earthy taste. Treated with an anion exchange resin.
For a comprehensive overview of well water treatment in the region, see the well water filtration guide.
Cities We Serve in Lake County
Quality Filters And Pumps drills wells and installs pumps throughout Lake County, including Leesburg, Mount Dora, Eustis, Clermont, Tavares, Umatilla, Groveland, Lady Lake, and the surrounding unincorporated communities. For the broader Central Florida service area, see the Central Florida well drilling guide or the Lake County service area page.