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How deep are water wells in Petronila, Texas?

Home water wells in and around Petronila, Texas are typically 330 to 405 feet deep (median 340 ft, 45 wells reported since 2001). Estimated cost of a complete well at the median depth: $11,000 to $27,000.

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 pointNueces County
What is under Petronila, TexasUnderground column at the center of Petronila: median well 340 ft, middle half 330 to 405 ft, water at 39 ft.No state layer model here yet0200400600ftGround levelMedian well: 340 ftWater standing in the well from 39 ftWater level39 ftMiddle half330–405 ftMedian well340 ft

Under Petronila, Nueces County

The well and the water are the median of 45 real wells. This atlas does not have a state layer model for this area yet.

Home wells in and around Petronila

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: Petronila and about 2 miles around it

Key figures

Typical depth (middle half)
330 to 405 feet
Median depth
340 feet
Deepest 10% are past
497 feet
Water level (median)
39 feet
44 wells
Yield (median)
80 gpm
22 wells, gallons per minute
Wells used
45
Since 2001
Inside the city limits
2
the rest within 2 miles
All years on file
45
median 340 ft, since 2003
Confidence
Standard (30 or more wells)

When the wells were finished, the water stood a median 39 feet below the surface (44 wells), well above the bottom: the typical well holds about 301 feet of water.

What is under Petronila, TexasUnderground column at the center of Petronila: median well 340 ft, middle half 330 to 405 ft, water at 39 ft.No state layer model here yet0200400600ftGround levelMedian well: 340 ftWater standing in the well from 39 ftWater level39 ftMiddle half330–405 ftMedian well340 ft
The well and the water are the median of 45 real wells. This atlas does not have a state layer model for this area yet.

Which formation do wells in Petronila draw from?

We cannot say yet for Petronila. 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 Nueces 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 Petronila are getting deeper. For reference, the median was 340 feet in 2011 to 2015 (16 wells) and 330 feet in 2016 to 2020 (13 wells).

PeriodMedian depth (ft)Wells
2001–2005under 10 wells8
2006–2010under 10 wells5
2011–201534016
2016–202033013
2021–2025under 10 wells2
2026under 10 wells1

What a well costs in Petronila

At the median depth for Petronila (340 feet), a complete home well would cost roughly $11,000 to $27,000: $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 (330 to 405 feet) the range runs from $11,000 to $31,000. 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 Petronila, Texas?

Home water wells in and around Petronila, Texas are typically 330 to 405 feet deep (median 340 ft, 45 wells reported since 2001). One in ten goes past 497 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 Petronila?

At the median depth (340 feet), a complete well would cost roughly $11,000 to $27,000, 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 Petronila?

When the wells were finished, the water stood a median 39 feet below the surface (44 wells), well above the bottom: the typical well holds about 301 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 Petronila?

In the state's boundary file (current as of November 2019) no groundwater conservation district covers Petronila. Districts created or enlarged since then are missing from that file, so confirm with the county or TWDB before drilling. Anywhere in Texas the well must be drilled by a licensed driller, who files the report with the state.

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/petronila-tx. License CC BY 4.0. https://doi.org/10.5281/zenodo.24126380.

Sources