Lubbock County, Texas: drinking water report. Lubbock County sits on the Llano Estacado (Staked Plains) in West Texas with a population of about 310,000.
Lubbock County sits on the Llano Estacado (Staked Plains) in West Texas with a population of about 310,000. The city of Lubbock sources water from Lake Alan Henry, Lake Meredith, and the Ogallala Aquifer – though the Ogallala's contribution has declined as the aquifer drops. The region's agricultural economy, centered on cotton, feeds on groundwater irrigation that competes directly with municipal supply. Water scarcity is not a future concern here – it is a present reality.
The Ogallala Aquifer beneath Lubbock County has declined by 50 to 150 feet since large-scale irrigation began in the 1950s, and the rate of decline exceeds recharge by a wide margin. According to the Texas Water Development Board's 2024 groundwater report, some areas of the county have less than 25 years of economically recoverable groundwater remaining at current pumping rates. As the aquifer drops, total dissolved solids and fluoride concentrations increase in the remaining water.
Lake Meredith, the regional surface water supply managed by the Canadian River Municipal Water Authority, has seen salinity increase as the lake's volume has declined. A 2024 TCEQ monitoring report documented TDS levels in Lubbock's blended supply averaging 650 mg/L – well above the EPA's secondary standard of 500 mg/L. The EPA's UCMR5 data shows low-level PFAS detections in the Lubbock system.
Lubbock's water is hard and mineral-rich because the available sources are all high in dissolved solids. A reverse osmosis system at the kitchen tap addresses both the taste and the elevated mineral content.
Check your water for current data on your system. For TDS, fluoride, and general mineral content, reverse osmosis is the most effective option. Our water filter guide includes systems designed for high-TDS water. Pull your detailed report for historical trends, and visit our Texas page for statewide context.
Drinking water is one exposure route. These federal datasets also cover Lubbock County, TX.
The EPA places Lubbock County, TX in Zone 2 - a moderate-risk category, with a predicted average indoor radon level between 2 and 4 pCi/L. Zone maps predict an area's radon potential from geology and existing indoor readings; they say nothing about a specific house. Testing is the only way to know your own level.
46% of homes in Lubbock County, TX were built before 1980, and 6% before 1950. Residential lead paint was banned in 1978, so housing age is the strongest available proxy for lead-paint exposure. This describes the county's housing stock, not any one home.
Modelled annual fine-particle pollution (PM2.5) in Lubbock County, TX averages 6.2 µg/m³, within the EPA's annual standard of 9 µg/m³. These are CDC modelled county estimates rather than readings from a specific monitor.
How radon zones work · Air quality by county · Lead exposure guide
4 public water systems serving Lubbock County, TX have EPA lead testing on record. The reported lead sample skews toward systems that already flagged a problem, so its exceedance rate is not directly comparable with other areas. 3 water systems serving Lubbock County, TX carry a health-based EPA Safe Drinking Water Act violation.
| Most-cited violation type | Systems affected |
|---|---|
| Total Coliform Rule | 1 |
| Arsenic | 1 |
| Fluoride | 1 |
| Nitrate | 1 |
Source: EPA Lead and Copper Rule 90th-percentile tap sampling and EPA SDWIS Safe Drinking Water Act enforcement records, aggregated from the public water systems serving this county. Figures are counts of water systems, not a test of any individual home or tap.