Water wells in the Evergreen Underground Water Conservation District

Q: What does a groundwater conservation district do?

In Texas, districts are the local authority over groundwater: they can require registration or permits for new wells, set spacing from other wells and property lines, and limit pumping. Each district writes its own rules, so ask the Evergreen Underground Water Conservation District before drilling inside it.

Home water wells inside the Evergreen Underground Water Conservation District (Atascosa, Frio, Wilson and Karnes counties, Texas) are typically 320 to 440 feet deep (median 381 ft, 2,115 wells drilled in the last 10 years). Over the last three full years drillers reported about 238 new home wells a year; the peak was 311 in 2021. Estimated cost of a complete well at the median depth: $12,000 to $29,500.

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 point

Under the center of the Evergreen UWCD

District boundary from TWDB's file current as of November 2019. Later changes are not shown.

Home wells in and around the Evergreen UWCD

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+

Dark line: the district boundary (TWDB, 2019)

Key figures

Typical depth (middle half): 320 to 440 feet
Median depth: 381 feet
Deepest 10% are past: 520 feet
Water level (median): 138 feet; 2,046 wells
Yield (median): 45 gpm; 2,051 wells, gallons per minute
Wells used: 2,115; In the last 10 years
Counties: 4
All years on file: 4,278; median 378 ft, since 1982
Confidence: Standard (30 or more wells)

When the wells were finished, the water stood a median 138 feet below the surface (2,046 wells), well above the bottom: the typical well holds about 243 feet of water.

District boundary from TWDB's file current as of November 2019. Later changes are not shown.

New home wells per year

Over the last three full years drillers reported about 238 new home wells a year; the peak was 311 in 2021.

Domestic wells with a depth, by the year they were finished. 2026 is still in progress.

Show the data table

Year	Wells
2002	45
2003	135
2004	128
2005	128
2006	194
2007	131
2008	120
2009	124
2010	92
2011	167
2012	180
2013	218
2014	207
2015	170
2016	141
2017	140
2018	140
2019	158
2020	213
2021	311
2022	288
2023	231
2024	246
2025	237
2026	131

Places with the most wells in the district

Place	Median depth (ft)	Middle half (ft)	Wells	Main layer
La Vernia	340	285–402	101	—
Moore	430	400–460	89	—
Pleasanton	435	360–480	88	—
Bigfoot	380	340–440	53	—
Pearsall	120	96–318	48	—
Jourdanton	480	370–545	47	—
Charlotte	360	225–375	45	—
Kenedy	265	172–428	43	—
Leming	400	350–460	42	—
Runge	246	211–280	41	—
Floresville	360	322–380	39	—
Poteet	400	358–421	36	—

Counties

Depth over time

New home wells in the district are deeper than 20 years ago: the median went from 340 feet (2003 to 2007) to 381 feet (2021 to 2025), 12% more. Deeper wells do not always mean the water dropped: a driller may be going for another layer, better water or more reserve.

Period	Median depth (ft)	Wells
2001–2005	336	438
2006–2010	360	661
2011–2015	380	942
2016–2020	380	792
2021–2025	381	1,313
2026	400	131

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Common questions

How deep are wells in the Evergreen UWCD?

What does a groundwater conservation district do?

In Texas, districts are the local authority over groundwater: they can require registration or permits for new wells, set spacing from other wells and property lines, and limit pumping. Each district writes its own rules, so ask the Evergreen Underground Water Conservation District before drilling inside it.

What a well costs here

At the median depth for the district (381 feet), a complete home well would cost roughly $12,000 to $29,500: $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 (320 to 440 feet) the range runs from $10,500 to $33,000. 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.

How these numbers are made

We count new and replacement domestic (home) wells whose coordinates fall inside the district boundary. 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/districts/evergreen-underground-water-conservation-district. License CC BY 4.0. https://doi.org/10.5281/zenodo.24126380.