Lost Pines Groundwater Conservation District

About the Distict

Quick Facts:

Quick Facts: Number of wells within District
Non-Exempt production wells: 89
Non-Exempt Irrigation wells: 23
Exempt Domestic wells: 2,552
Un-recorded wells estimated: 2,000
Total wells: 4,664

Water pumped within District:

Metered non-exempt wells: 24,000 Acre ft. per year.
Un-metered estimate for exempt wells: 6,000 Acre ft. per year.
Irrigation well volumes estimate: 2,811 Acre ft. per year.
Mining volume: 15,000 Acre ft. per year.
Total estimated: 47,811 AF/Y

Carrizo-Wilcox Aquifer Recharge for District
Lee County: 7,500 Acre ft. per year
Bastrop County: 28,000 Acre ft. per year
Total Recharge: 35,500 Acre ft. per yr.

District Demographics

Physical Size:

Lee County: 628 sq. mi. or 401,920 acres.
Bastrop County: 888 sq. mi. or 568,320 acres.
Total District: 1,516 sq. mi. or 970,240 acres


Lee County: 18,000
Bastrop County: 75,000
Total District: 93,000

Population Density:
Lee County: 27.4/mi2
Bastrop County: 80.0/mi2
Total District: 58.2/mi2

Power to Protect:

The District has the power to regulate the spacing of new wells to ensure fairness and sufficient water for everyone. If you participate in the Well Watch Program, the District can help ensure that new wells are spaced to minimize interference with your well.

By State law, the District cannot prevent outside interests from exporting water away from our area. However, the District has certain powers to help prevent large-volume users from over pumping and causing damage to our water supply.

Well Watch Program:

One of the District's most important programs, the Well Watch Program allows well owners to have their wells recorded with the district. At the well owner's request, District staff will personally visit a well to determine its exact location and measure its water level. Measurements gathered through the Well Watch Program enable the District to monitor changes , detect declines in the aquifer, and take action as needed to protect our aquifer from over pumping.

It's easy, it's free, and it's fast (it takes about 20 minutes). If you own a well in Bastrop or Lee Counties, please contact the District to get your well recorded. It's something every well owner can do to protect our groundwater.

Threats To Our Aquifer:

The Carrizo-Wilcox Aquifer is a unique geological formation. Unlike the nearby Edwards Aquifer, which is composed of limestone, the Carrizo-Wilcox Aquifer is composed of sand, sandstone, silt, and clay. In a sand aquifer like ours, recharge from rainfall occurs more slowly as water seeps into the ground. Once a sand aquifer is damaged, it could take decades or even centuries for water levels to recover.

Today, there are serious threats to the Carrizo-Wilcox Aquifer. As cities like San Antonio grow and need more water, they are looking to our aquifer. Several water marketers are planning to build large well fields and pipelines to move water to other parts of the state. If very large volumes are pumped over an extended time, there is likely to be a significant decline in the water levels. Many shallow rural wells could go dry. Homes, farms, and ranches could experience water shortages, and our region could be economically devastated.

Small To Medium Wells Exempt:

The District's operations are paid for by fees paid by large volume pumpers such as industry and municipal water supply companies. A large volume well is considered to be any well that can pump more than 25 thousand gallons/day (by comparison, an average household only uses about 330 gallons/day). Nearly all home and agricultural wells are "exempt" from the District's rules. That means they do not pay fees and are not metered.