CT- GW 23
U.S. Geological Survey
Located in Fairfield County, Connecticut, this groundwater monitoring location is associated with a water well in the New England crystalline-rock aquifers.
Well Construction
No well construction data is available
No lithology data is available
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Agency U.S. Geological Survey Site Name CT- GW 23 Site Number 410515073415901 Site Type WELL Lat/Long (NAD83) 41.0875, -73.6832 Well Depth 250 Feet Elevation (NAVD88) 365.94 ft Latitude 41.0874722222222 Longitude -73.6831666666667 Local Aquifer Name Non-Carbonate Crystalline Bedrock (None) National Aquifer Name New England crystalline-rock aquifers (N600NECRSN) Aquifer Type 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 43.55 25.26 15.81 2001-10-05 2026-05-27 292 24.6 27.58 23.08 Statistics Calculated 2026-06-05 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 28.39 24.37 23.50 21.95 20.28 19.74 18.91 24 24 Feb 25.35 24.19 23.17 22.28 20.84 19.79 18.96 20 20 Mar 24.17 22.93 22.25 21.45 20.35 18.96 15.81 24 24 Apr 26.96 25.35 23.61 22.06 20.58 19.08 18.57 23 23 May 30.18 29.41 27.46 25.26 22.89 21.60 19.77 25 25 Jun 34.14 32.96 30.72 29.08 25.77 22.05 19.02 24 24 Jul 42.41 36.40 33.80 32.67 30.22 28.22 26.03 23 23 Aug 40.61 40.16 38.50 33.06 30.85 28.66 20.92 24 24 Sep 43.55 42.19 40.82 34.74 27.29 25.37 23.65 23 23 Oct 43.05 39.77 35.47 29.11 25.66 22.84 19.49 23 23 Nov 33.49 32.88 28.97 26.22 21.20 20.00 19.71 22 22 Dec 32.09 26.81 24.98 21.63 19.58 19.25 18.71 22 22 Statistics Calculated 2026-06-05 -
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