09N07E21BBB1 near Heafer
U.S. Geological Survey
Located in Crittenden County, Arkansas, this groundwater monitoring location is associated with a water well in the Mississippi embayment aquifer system.
Well Construction
| Depth | Description | |
|---|---|---|
| -0.5-584.0 ft | 6.25 in diameter steel casing | |
| 584.0-604.0 ft | 6.0 in diameter stainless steel screen |
| Depth | Lithology | Description |
|---|---|---|
| 584.0-620.0 ft | Sand | Sand |
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Agency U.S. Geological Survey Site Name 09N07E21BBB1 near Heafer Site Number 352341090213101 Site Type WELL Lat/Long (NAD83) 35.3948, -90.3585 Well Depth 604 Feet Elevation (NGVD29) 216.0 ft Latitude 35.3947833333333 Longitude -90.3585138888889 Local Aquifer Name 500-foot Sand (Memphis Aquifer) (None) National Aquifer Name Mississippi embayment aquifer system (S100MSEMBM) Aquifer Type CONFINED Water-Level Well Type Trend 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 28.97 25.71 21.14 2006-02-02 2025-04-15 6638 19.2 24.65 55.00 Statistics Calculated 2025-04-17 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 Jan 28.50 27.48 26.78 26.14 25.42 24.46 23.43 18 18 Feb 28.12 26.93 26.55 25.75 25.02 24.29 22.85 20 20 Mar 27.64 26.64 26.31 25.21 24.39 23.53 22.23 18 18 Apr 27.11 26.18 25.65 24.82 23.95 22.67 21.69 18 18 May 26.64 25.63 25.02 24.57 23.57 22.45 21.34 19 19 Jun 25.93 25.57 25.04 24.78 23.39 22.15 21.34 19 19 Jul 26.83 26.17 25.70 25.21 24.30 22.35 22.32 19 19 Aug 28.18 27.29 26.55 25.81 25.61 23.83 22.89 19 19 Sep 28.76 27.99 26.94 26.58 26.17 24.68 23.81 19 19 Oct 28.88 28.07 27.09 26.62 26.35 24.87 24.08 19 19 Nov 28.91 28.04 27.12 26.51 26.30 24.92 24.06 19 19 Dec 28.70 27.70 27.01 26.34 25.86 24.77 23.81 19 19 Statistics Calculated 2025-04-17 -
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