Sedan SE Quad
Texas Water Development Board
Located in Dallam County, Texas, this groundwater monitoring location is associated with a water well in the High Plains aquifer.
Well Construction
| Depth | Description | |
|---|---|---|
| 0.0-103.0 ft | steel casing | |
| 103.0-298.0 ft | steel screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-6.0 ft | - | Top Soil |
| 6.0-90.0 ft | - | Caliche, Clay and Sand |
| 90.0-150.0 ft | - | Fine to Medium Sand w/ Clay Streaks |
| 150.0-210.0 ft | - | Clay w/ Small Streaks Fine Sand |
| 210.0-270.0 ft | - | Fine to Medium Sand |
| 270.0-290.0 ft | - | Clay w/ some Sand |
| 290.0-315.0 ft | - | Clay and Shale |
-
Agency Texas Water Development Board Site Name Sedan SE Quad Site Number 0164301 Site Type WELL Lat/Long (NAD83) 36.1197, -103.0011 Well Depth 298 Feet Elevation (NAVD88) 4439.0 ft Latitude 36.1197222 Longitude -103.0011111 Local Aquifer Name Ogallala (121OGLL) (None) National Aquifer Name High Plains aquifer (N100HGHPLN) Aquifer Type UNCONFINED Water-Level Well Type Surveillance Water-Level Well Characteristics Known Changes 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 -
-
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 271.74 168.37 87.00 1968-02-27 2025-02-04 38 57.0 266.10 -- Statistics Calculated 2026-04-07 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 -
Operated in cooperation with:
