Well NA04101003AAA1 EW-46U (EW46U)
Unconfined

Co-located Well(s):
NA04101003AAA2 EW-46C (EW46C)

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Well Information Table
Common Well IDNA04101003AAA1 EW-46U
USBR Well IDEW46U
USGS Well ID375013105511701
GSDNP Well Name375013105511701
USGS Station NameNA04101003AAA1 EW-46U
USGS Site TypeWell
USGS Site Use InformationObservation
USGS Groundwater Use InformationUnknown
Data Source(s)USGS, USBR
Location Data
TRSNA04101003AAA1 EW-46U
USBR TRSNA04101003AAA1
USGS TRS 1NA04101003AAA1 EW-46U
Longitude/Latitude (NAD83)-105.85540798 , 37.83691351
Longitude/Latitude Data SourceUSBOR EW well locations
USGS Longitude/Latitude (NAD83)-105.8552962 , 37.83694394
USBR Longitude/Latitude (NAD27)-105.854833999179 , 37.8369140198985
Easting, Northing RGDSS-NAD83 (US ft)147659.03 , 306206.95
USGS CountySaguache County
Elevation and Depth Data
Ground Elevation (ft NAVD88)7536.76
Elevation Data SourceUSBOR EW well database
USBR Ground Elevation (ft NGVD29)7532.9
USGS Ground Elevation (ft NGVD29)7532.92
1/3-Arc Second NED Ground Elevation (ft NAVD88)7537.88
1-Arc Second NED Ground Elevation (ft NAVD88)7536.71
SRTM Ground Elevation (ft NAVD88)7534.36
Total Depth (ft)45.00
USBR Total Depth (ft)45
USGS Well Depth (ft)61.00
Model Layer1
Model Layer SourceAquifer Type
Depth of Bottom of Layer 193
Depth of Bottom of Layer 2255
Depth of Bottom of Layer 31454
Depth of Bottom of Layer 43906
Additional Well InformationNONE
Aquifer Information
Aquifer TypeUnconfined
Aquifer Type SourceEW_AQFR
USGS Hydrologic UnitSan Luis
USGS Data AvailableWater-level (GW.LEV)
Water-level Database Information
Water-level Count485
Water-level Date Range10/20/1983 thru 09/15/2024
Monitored within the last 18 monthsYes, most recently on 09/15/2024
Depth-to-Water Range (ft)1.90 to 17.59
Water Table Elevation Range (ft NAVD88)7519.17 to 7534.86
Water-Level-Source:Number-of-MeasurementsUSGS:24 USBR:462

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Water-level Data

2019 to Present

1967 to Present

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Measurement DateDepth to
Water (ft)
Elevation
(ft NAVD88)
Data
Source(s)
10/20/19834.457532.31USBR
11/29/19834.607532.16USBR
12/13/19834.607532.16USBR
01/17/19844.207532.56USBR
02/17/19844.257532.51USBR
03/14/19844.207532.56USBR
04/16/19844.007532.76USBR
05/16/19844.007532.76USBR
06/20/19844.107532.66USBR
07/10/19844.407532.36USBR
08/20/19844.547532.22USBR
09/25/19844.857531.91USBR
10/18/19844.777531.99USBR
11/21/19844.717532.05USBR
12/18/19844.647532.12USBR
01/17/19854.587532.18USBR
02/21/19854.407532.36USBR
03/19/19854.447532.32USBR
04/22/19854.347532.42USBR
05/16/19854.187532.58USBR
06/24/19855.537531.23USBR
07/21/19855.567531.20USBR
08/26/19854.837531.93USBR
09/19/19854.807531.96USBR
10/16/19854.717532.05USBR
11/19/19854.667532.10USBR
01/13/19864.537532.23USBR
02/17/19864.487532.28USBR
03/25/19863.937532.83USBR
04/21/19863.907532.86USBR
05/19/19864.107532.66USBR
06/19/19864.447532.32USBR
07/21/19864.497532.27USBR
09/23/19865.887530.88USBR
10/24/19864.737532.03USBR
11/26/19864.557532.21USBR
12/23/19864.217532.55USBR
01/26/19874.167532.60USBR
02/25/19874.007532.76USBR
03/26/19872.527534.24USBR
04/24/19873.127533.64USBR
05/22/19872.187534.58USBR
06/22/19871.907534.86USBR
07/27/19872.237534.53USBR
08/26/19872.807533.96USBR
09/21/19872.827533.94USBR
10/21/19873.357533.41USBR
11/20/19873.407533.36USBR
06/15/19883.217533.55USBR
09/30/19884.217532.55USBR
10/15/19884.227532.54USBR
11/03/19884.097532.67USBR
12/15/19884.247532.52USBR
02/15/19894.097532.67USBR
03/15/19893.837532.93USBR
04/15/19893.457533.31USBR
05/15/19893.337533.43USBR
06/15/19893.887532.88USBR
07/15/19894.167532.60USBR
08/15/19894.357532.41USBR
09/15/19894.537532.23USBR
10/15/19894.467532.30USBR
11/15/19894.577532.19USBR
12/15/19894.447532.32USBR
01/15/19904.427532.34USBR
02/15/19904.427532.34USBR
03/15/19904.367532.40USBR
04/15/19904.057532.71USBR
05/15/19903.517533.25USBR
06/15/19903.577533.19USBR
10/15/19904.557532.21USBR
11/15/19904.527532.24USBR
01/15/19914.357532.41USBR
02/15/19914.397532.37USBR
03/15/19914.287532.48USBR
04/15/19914.177532.59USBR
05/15/19914.047532.72USBR
06/15/19914.247532.52USBR
07/15/19914.457532.31USBR
08/15/19914.437532.33USBR
09/15/19914.587532.18USBR
10/16/19914.837531.93USBR
11/15/19914.707532.06USBR
02/15/19924.457532.31USBR
04/15/19923.757533.01USBR
05/15/19924.477532.29USBR
06/15/19924.957531.81USBR
07/15/19925.527531.24USBR
08/15/19925.447531.32USBR
09/15/19926.957529.81USBR
10/15/19927.607529.16USBR
11/15/19927.887528.88USBR
12/15/19928.357528.41USBR
01/07/19938.817527.95USBR
02/15/19939.207527.56USBR
03/15/19939.587527.18USBR
04/15/19939.627527.14USBR
05/15/19939.847526.92USBR
06/15/199310.187526.58USBR
07/15/19939.547527.22USBR
08/15/19937.827528.94USBR
10/15/19937.937528.83USBR
12/15/199310.687526.08USBR
01/15/199411.277525.49USBR
02/15/199411.607525.16USBR
03/15/199411.957524.81USBR
04/15/199410.007526.76USBR
05/15/199410.327526.44USBR
06/15/19949.957526.81USBR
07/15/199410.187526.58USBR
08/15/199410.207526.56USBR
09/15/199410.447526.32USBR
10/21/199410.067526.70USGS
10/21/199410.097526.67USBR
11/15/199410.357526.41USBR
11/29/19949.997526.77USGS
11/29/199410.027526.74USBR
12/15/199410.117526.65USBR
01/15/199512.447524.32USBR
02/22/199512.607524.16USGS
02/22/199512.637524.13USBR
03/15/199513.047523.72USBR
04/19/199513.397523.37USBR
04/19/199513.367523.40USGS
05/15/199511.207525.56USBR
06/15/199510.777525.99USBR
07/19/199510.597526.17USGS
07/19/199510.627526.14USBR
10/24/199510.327526.44USGS
10/24/199510.357526.41USBR
01/30/199612.127524.64USBR
02/05/199612.117524.65USBR
02/14/199612.317524.45USGS
02/14/199612.347524.42USBR
04/23/199611.497525.27USBR
04/23/199611.467525.30USGS
06/03/199611.207525.56USBR
06/25/199611.187525.58USBR
07/31/199610.987525.78USGS
07/31/199611.017525.75USBR
08/29/199611.687525.08USBR
09/15/199611.427525.34USBR
10/30/199613.687523.08USBR
11/15/199611.847524.92USBR
12/15/199613.937522.83USBR
01/22/199714.167522.60USBR
02/15/199714.407522.36USBR
03/15/199714.797521.97USBR
04/30/199714.957521.81USGS
04/30/199714.987521.78USBR
05/11/199714.947521.82USBR
06/12/199715.287521.48USBR
07/15/199715.297521.47USBR
08/15/199715.307521.46USBR
09/09/199715.467521.30USBR
09/24/199715.517521.25USGS
09/24/199715.547521.22USBR
10/15/199715.447521.32USBR
11/15/199715.667521.10USBR
12/15/199715.707521.06USBR
01/15/199815.867520.90USBR
02/04/199815.877520.89USBR
02/15/199815.977520.79USBR
04/16/199816.507520.26USBR
04/16/199816.477520.29USGS
04/30/199816.537520.23USBR
05/21/199816.597520.17USBR
07/07/199816.917519.85USBR
10/07/199817.197519.57USBR
10/07/199817.167519.60USGS
11/06/199817.207519.56USBR
11/15/199817.187519.58USBR
12/15/199817.007519.76USBR
01/11/199916.427520.34USBR
02/15/199917.267519.50USBR
03/15/199916.837519.93USBR
04/08/199916.617520.15USGS
04/08/199916.647520.12USBR
05/06/199916.547520.22USBR
06/15/199916.487520.28USBR
07/15/199916.367520.40USBR
08/15/199916.367520.40USBR
09/07/199916.267520.50USBR
09/21/199916.287520.48USBR
09/21/199916.257520.51USGS
10/15/199916.247520.52USBR
11/15/199916.167520.60USBR
12/15/199916.157520.61USBR
01/15/200016.117520.65USBR
02/14/200016.077520.69USBR
03/29/200016.067520.70USBR
03/29/200016.037520.73USGS
04/27/200016.017520.75USBR
05/15/200016.087520.68USBR
06/15/200016.077520.69USBR
07/26/200015.947520.82USBR
08/15/200015.857520.91USBR
09/20/200015.797520.97USGS,USBR
10/25/200016.657520.11USBR
11/15/200017.067519.70USBR
01/02/200117.187519.58USBR
03/29/200117.227519.54USBR
07/03/200117.267519.50USBR
10/22/200117.137519.63USBR
10/24/200117.177519.59USGS
11/20/200117.207519.56USBR
12/10/200116.357520.41USBR
01/15/200216.097520.67USBR
02/15/200216.157520.61USBR
03/15/200216.187520.58USBR
04/15/200216.207520.56USBR
05/15/200216.297520.47USBR
06/15/200215.987520.78USBR
07/15/200215.827520.94USBR
08/15/200215.787520.98USBR
08/25/200215.867520.90USBR
09/15/200215.787520.98USBR
10/15/200215.577521.19USBR
11/15/200215.537521.23USBR
12/15/200215.347521.42USBR
01/09/200315.397521.37USBR
01/15/200316.907519.86USBR
02/15/200317.067519.70USBR
03/15/200317.057519.71USBR
04/15/200317.017519.75USBR
05/15/200317.057519.71USBR
06/15/200316.957519.81USBR
07/02/200316.867519.90USBR
07/15/200315.787520.98USBR
08/15/200315.617521.15USBR
09/15/200315.397521.37USBR
10/08/200316.527520.24USGS
10/08/200315.267521.50USBR
10/15/200316.437520.33USBR
11/15/200316.487520.28USBR
12/15/200316.447520.32USBR
01/15/200416.397520.37USBR
02/15/200416.427520.34USBR
03/15/200416.387520.38USBR
04/15/200416.477520.29USBR
04/21/200416.407520.36USGS
05/15/200416.447520.32USBR
06/15/200416.427520.34USBR
07/15/200416.417520.35USBR
07/19/200416.417520.35USBR
08/15/200415.267521.50USBR
09/15/200415.277521.49USBR
10/15/200415.037521.73USBR
10/27/200415.117521.65USGS
11/15/200415.037521.73USBR
12/15/200414.837521.93USBR
01/15/200514.967521.80USBR
01/23/200516.157520.61USBR
02/15/200516.207520.56USBR
03/15/200516.217520.55USBR
03/22/200516.237520.53USGS
04/15/200516.217520.55USBR
04/28/200515.307521.46USBR
05/15/200515.157521.61USBR
06/01/200515.027521.74USBR
06/15/200516.117520.65USBR
07/08/200516.107520.66USBR
07/15/200515.977520.79USBR
07/24/200515.097521.67USBR
07/29/200516.027520.74USGS
08/15/200516.007520.76USBR
08/17/200515.977520.79USBR
09/05/200514.897521.87USBR
09/15/200515.887520.88USBR
10/15/200515.957520.81USBR
10/20/200515.927520.84USGS
11/15/200516.037520.73USBR
12/15/200515.987520.78USBR
01/13/200616.147520.62USBR
05/08/200616.257520.51USBR
07/20/200616.417520.35USBR
09/14/200616.417520.35USBR
10/16/200616.337520.43USBR
11/15/200616.477520.29USBR
12/15/200616.457520.31USBR
01/11/200716.477520.29USBR
04/12/200715.727521.04USBR
06/25/200716.367520.40USBR
09/05/200716.387520.38USBR
01/15/200815.297521.47USBR
02/15/200815.237521.53USBR
03/15/200815.287521.48USBR
04/15/200815.127521.64USBR
05/15/200815.077521.69USBR
06/15/200814.967521.80USBR
07/15/200815.677521.09USBR
08/15/200815.787520.98USBR
09/15/200815.617521.15USBR
10/15/200815.217521.55USBR
11/15/200815.027521.74USBR
12/15/200814.927521.84USBR
01/15/200915.567521.20USBR
02/15/200915.647521.12USBR
03/15/200915.627521.14USBR
04/15/200915.607521.16USBR
05/15/200915.627521.14USBR
06/15/200915.517521.25USBR
07/15/200915.477521.29USBR
08/15/200915.397521.37USBR
09/15/200915.397521.37USBR
10/15/200915.567521.20USBR
11/15/200915.407521.36USBR
12/15/200915.607521.16USBR
01/15/201015.317521.45USBR
02/15/201015.337521.43USBR
03/15/201015.377521.39USBR
04/15/201015.307521.46USBR
05/15/201015.337521.43USBR
06/15/201015.297521.47USBR
07/15/201015.377521.39USBR
08/15/201015.387521.38USBR
09/15/201015.367521.40USBR
10/15/201015.317521.45USBR
11/15/201015.357521.41USBR
12/15/201015.387521.38USBR
01/15/201115.497521.27USBR
02/15/201115.467521.30USBR
03/15/201115.537521.23USBR
04/15/201115.587521.18USBR
05/15/201115.597521.17USBR
06/15/201115.627521.14USBR
07/15/201115.607521.16USBR
08/15/201115.827520.94USBR
09/15/201115.857520.91USBR
10/15/201115.697521.07USBR
11/15/201115.517521.25USBR
12/15/201115.687521.08USBR
01/15/201216.327520.44USBR
02/15/201216.557520.21USBR
03/15/201216.747520.02USBR
04/15/201216.807519.96USBR
05/15/201216.307520.46USBR
06/14/201216.927519.84USBR
07/15/201217.057519.71USBR
08/15/201217.147519.62USBR
09/15/201217.227519.54USBR
10/15/201216.667520.10USBR
11/15/201216.417520.35USBR
12/15/201216.267520.50USBR
01/15/201316.917519.85USBR
02/15/201317.127519.64USBR
03/15/201317.167519.60USBR
04/15/201317.237519.53USBR
05/15/201316.687520.08USBR
06/15/201317.277519.49USBR
07/15/201316.807519.96USBR
08/15/201317.267519.50USBR
09/15/201316.997519.77USBR
10/15/201316.937519.83USBR
11/15/201316.977519.79USBR
12/15/201317.117519.65USBR
01/15/201417.097519.67USBR
02/15/201417.357519.41USBR
03/15/201416.937519.83USBR
04/15/201416.747520.02USBR
05/15/201416.647520.12USBR
06/15/201416.597520.17USBR
07/15/201416.567520.20USBR
08/15/201416.557520.21USBR
09/15/201416.457520.31USBR
10/15/201416.457520.31USBR
11/15/201416.397520.37USBR
12/15/201416.437520.33USBR
01/15/201516.447520.32USBR
02/15/201516.377520.39USBR
03/15/201516.427520.34USBR
04/15/201516.407520.36USBR
05/15/201516.387520.38USBR
06/15/201516.377520.39USBR
07/15/201516.257520.51USBR
08/15/201516.167520.60USBR
09/15/201516.087520.68USBR
10/15/201516.047520.72USBR
11/15/201515.957520.81USBR
12/15/201515.927520.84USBR
01/15/201615.897520.87USBR
02/15/201615.917520.85USBR
03/15/201615.917520.85USBR
04/15/201615.867520.90USBR
05/15/201615.857520.91USBR
06/15/201615.887520.88USBR
07/15/201615.867520.90USBR
08/15/201615.857520.91USBR
09/15/201615.827520.94USBR
10/15/201615.817520.95USBR
11/15/201615.807520.96USBR
12/15/201615.787520.98USBR
01/15/201715.767521.00USBR
02/15/201715.837520.93USBR
03/15/201715.857520.91USBR
04/15/201715.877520.89USBR
05/15/201715.837520.93USBR
06/15/201715.807520.96USBR
07/15/201715.807520.96USBR
08/15/201715.767521.00USBR
09/15/201715.747521.02USBR
10/15/201715.757521.01USBR
11/15/201715.707521.06USBR
12/15/201715.687521.08USBR
01/15/201815.667521.10USBR
02/15/201815.737521.03USBR
03/15/201815.807520.96USBR
04/15/201815.837520.93USBR
05/15/201815.827520.94USBR
06/15/201815.777520.99USBR
07/15/201815.857520.91USBR
08/15/201815.907520.86USBR
09/15/201816.047520.72USBR
10/15/201816.137520.63USBR
11/15/201816.047520.72USBR
12/15/201816.027520.74USBR
01/15/201916.037520.73USBR
02/15/201916.047520.72USBR
03/15/201916.247520.52USBR
04/15/201916.247520.52USBR
05/15/201916.317520.45USBR
06/15/201916.367520.40USBR
07/15/201916.397520.37USBR
08/15/201916.437520.33USBR
09/15/201916.477520.29USBR
10/15/201916.497520.27USBR
11/15/201916.527520.24USBR
12/15/201916.497520.27USBR
01/15/202016.537520.23USBR
02/15/202016.557520.21USBR
03/15/202016.587520.18USBR
04/15/202016.597520.17USBR
05/15/202016.627520.14USBR
06/15/202016.647520.12USBR
07/15/202016.667520.10USBR
08/15/202016.657520.11USBR
09/15/202016.647520.12USBR
10/15/202016.597520.17USBR
11/15/202016.537520.23USBR
12/15/202016.477520.29USBR
01/15/202116.517520.25USBR
02/15/202116.597520.17USBR
03/15/202116.677520.09USBR
04/15/202116.737520.03USBR
05/15/202116.807519.96USBR
06/15/202116.847519.92USBR
07/15/202116.907519.86USBR
08/15/202116.927519.84USBR
09/15/202116.927519.84USBR
10/15/202116.977519.79USBR
11/15/202116.987519.78USBR
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