Rockdale West Quad
Texas Water Development Board
Located in Milam County, Texas, this groundwater monitoring location is associated with a water well in the Texas coastal uplands aquifer system.
Well Construction
| Depth | Description | |
|---|---|---|
| 259.0-339.0 ft | steel casing | |
| 0.0-165.0 ft | steel casing | |
| 193.0-196.0 ft | steel casing | |
| 196.0-259.0 ft | stainless steel screen | |
| 339.0-390.0 ft | stainless steel screen | |
| 165.0-193.0 ft | stainless steel screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-3.0 ft | - | Sand |
| 3.0-11.0 ft | - | Sand |
| 11.0-50.0 ft | - | Sandy Shale |
| 50.0-110.0 ft | - | Gravel and Sand |
| 110.0-112.0 ft | - | Rock |
| 112.0-115.0 ft | - | Lignite |
| 115.0-164.0 ft | - | Shale and Sandy Shale Streaks |
| 164.0-230.0 ft | - | Sand |
| 230.0-236.0 ft | - | Sandy Shale and Lignite |
| 236.0-260.0 ft | - | Sand |
| 260.0-270.0 ft | - | Shale |
| 270.0-280.0 ft | - | Sand |
| 280.0-338.0 ft | - | Shale |
| 338.0-391.0 ft | - | Sand |
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Agency Texas Water Development Board Site Name Rockdale West Quad Site Number 5824610 Site Type WELL Lat/Long (NAD83) 30.6716, -97.004 Well Depth 392 Feet Elevation (NAVD88) 493.0 ft Latitude 30.6716 Longitude -97.004 Local Aquifer Name Carrizo-Wilcox (124SMBR) (None) National Aquifer Name Texas coastal uplands aquifer system (S100TXCLUP) Aquifer Type UNCONFINED Water-Level Well Type Surveillance Water-Level Well Characteristics Background Water Quality Network Additional info Link 1 -
Activity Start Date Activity Start Time Characteristic Name Measure Value Units Detection Limit Value Type Sample Fraction Method Name Analytical Method System Sample Method ID Sample Method ID Context Sample Method Name Activity Type Code Data Provided By -
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How do we calculate statistics?
Overall Water Level Statistics (Depth to water, feet below land surface) Lowest Water Level Median Water Level Highest Water Level First Measurement Date Last Measurement Date Number of Measurements Years of Record Latest Value Latest Percentile 152.34 134.55 100.00 1977-01-06 2025-04-29 26 48.2 152.34 Statistics Calculated 2026-03-04 Monthly Water Level Statistics (Depth to water, feet below land surface) Month Lowest Median 10th Percentile 25th Percentile 50th Percentile 75th Percentile 90th Percentile Highest Median Number of Measurements Years of Record -
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