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How deep are water wells in Olmos Park, Texas?

Home water wells in and around Olmos Park, Texas are typically 274 to 505 feet deep (median 445 ft, 48 wells reported since 2001). Estimated cost of a complete well at the median depth: $13,500 to $33,000.

Updated every day from Texas Water Development Board driller reports. Last update: November 11, 2026, using the state file of November 10, 2026.

See the wells and layers at an exact pointBexar County
What is under Olmos Park, TexasUnderground column at the center of Olmos Park: median well 445 ft, middle half 274 to 505 ft, water at 154 ft.No state layer model here yet0200400600800ftGround levelMedian well: 445 ftWater standing in the well from 154 ftWater level154 ftMiddle half274–505 ftMedian well445 ft

Under Olmos Park, Bexar County

The well and the water are the median of 48 real wells. This atlas does not have a state layer model for this area yet.

Home wells in and around Olmos Park

Each dot is a home well from a state driller report, colored by depth. Tap one for its details and official report. Tap an empty spot to see what is under that point.

See underground

Well depth (ft)

  • <100
  • 100
  • 200
  • 300
  • 400
  • 600
  • 800+

Dashed line: Olmos Park and about 2 miles around it

Key figures

Typical depth (middle half)
274 to 505 feet
Median depth
445 feet
Deepest 10% are past
580 feet
Water level (median)
154 feet
48 wells
Yield (median)
50 gpm
41 wells, gallons per minute
Wells used
48
Since 2001
Inside the city limits
13
the rest within 2 miles
All years on file
48
median 445 ft, since 2009
Confidence
Standard (30 or more wells)

When the wells were finished, the water stood a median 154 feet below the surface (48 wells), well above the bottom: the typical well holds about 291 feet of water.

What is under Olmos Park, TexasUnderground column at the center of Olmos Park: median well 445 ft, middle half 274 to 505 ft, water at 154 ft.No state layer model here yet0200400600800ftGround levelMedian well: 445 ftWater standing in the well from 154 ftWater level154 ftMiddle half274–505 ftMedian well445 ft
The well and the water are the median of 48 real wells. This atlas does not have a state layer model for this area yet.

Which formation do wells in Olmos Park draw from?

We cannot say yet for Olmos Park. This atlas assigns layers with the TWDB layered models processed so far (the Northern Trinity and Woodbine model, the Hill Country Trinity model, the northern Gulf Coast Aquifer model and the High Plains Aquifer System model), and none covers this area with enough wells. The depth, water level and yield on this page do come from the real wells here.

See the aquifers mapped under Bexar County

Depth over time

There are not enough wells in both 2003 to 2007 and 2021 to 2025 (at least 30 in each) to say with confidence whether wells in and around Olmos Park are getting deeper. For reference, the median was 485 feet in 2011 to 2015 (13 wells) and 290 feet in 2021 to 2025 (20 wells).

PeriodMedian depth (ft)Wells
2006–2010under 10 wells1
2011–201548513
2016–202049012
2021–202529020
2026under 10 wells2

What a well costs in Olmos Park

At the median depth for Olmos Park (445 feet), a complete home well would cost roughly $13,500 to $33,000: $25 to $60 per foot for drilling, casing and seal, plus $2,500 to $6,500 for the pump, pressure tank, controls and hookup at the well. Across the whole middle half of depths (274 to 505 feet) the range runs from $9,500 to $37,000. This is TerraFunded's estimate from published Texas prices, not a quote, and it leaves out trenching and the line to the house. Get prices from at least two licensed drillers.

Where it sits

Nearby places

Median depth of home wells in each place.

All Texas cities and towns

Common questions

How deep do you have to drill a well in Olmos Park, Texas?

Home water wells in and around Olmos Park, Texas are typically 274 to 505 feet deep (median 445 ft, 48 wells reported since 2001). One in ten goes past 580 feet. The depth a given tract needs depends on where it sits and what layers the driller hits.

How much does a water well cost in Olmos Park?

At the median depth (445 feet), a complete well would cost roughly $13,500 to $33,000, by TerraFunded's estimate from published Texas driller prices. The real price comes from a licensed driller's quote.

How deep is the water in Olmos Park?

When the wells were finished, the water stood a median 154 feet below the surface (48 wells), well above the bottom: the typical well holds about 291 feet of water. The level moves with drought and from one well to the next.

Do I need a permit to drill a well in Olmos Park?

Olmos Park is inside the Edwards Aquifer Authority. Groundwater conservation districts in Texas can require registering or permitting a new well, keeping set distances from property lines and other wells, and paying fees. Rules differ from district to district: ask the district before drilling.

How these numbers are made

We count new and replacement domestic (home) wells whose coordinates fall inside the place boundary or within 2 miles of it. We use the last 10 years when there are at least 30 wells; otherwise all since 2001. The median is the middle well and the middle half runs from the 25th to the 75th percentile.

These are depths of real wells drilled nearby, not a promise about any property. Groundwater can change over short distances and with drought. A licensed water well driller can tell you what to expect on a specific tract.

Read the full methodology · Download the data (CSV, CC BY 4.0)

How to cite

TerraFunded (2026). Texas Well Atlas: Underground. From Texas Water Development Board driller reports and groundwater availability models (data as of November 10, 2026). https://terrafunded.com/wells/places/olmos-park-tx. License CC BY 4.0. https://doi.org/10.5281/zenodo.24126380.

Sources