Well NA04301035CAC1 EW-55U (EW55U)
Unconfined

Co-located Well(s):
NA431035CAC2 SAG 14 (EW55C)

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Well Information Table
Common Well IDNA04301035CAC1 EW-55U
USBR Well IDEW55U
USGS Well ID375523105505301
GSDNP Well Name375523105505301
USGS Station NameNA04301035CAC1 EW-55U
USGS Site TypeWell
USGS Site Use InformationObservation
USGS Groundwater Use InformationUnknown
Data Source(s)USGS, USBR
Location Data
TRSNA04301035CAC1 EW-55U
USBR TRSNA04301035CAC1
USGS TRS 1NA04301035CAC1 EW-55U
Longitude/Latitude (NAD83)-105.84855232 , 37.92302001
Longitude/Latitude Data SourceUSBOR EW well locations
USGS Longitude/Latitude (NAD83)-105.8486273 , 37.92305487
USBR Longitude/Latitude (NAD27)-105.847980581690 , 37.9230206924459
Easting, Northing RGDSS-NAD83 (US ft)149700.09 , 337548.53
USGS CountySaguache County
Elevation and Depth Data
Ground Elevation (ft NAVD88)7546.46
Elevation Data SourceUSBOR EW well database
USBR Ground Elevation (ft NGVD29)7542.5
USGS Ground Elevation (ft NGVD29)7542.51
1/3-Arc Second NED Ground Elevation (ft NAVD88)7544.34
1-Arc Second NED Ground Elevation (ft NAVD88)7545.27
SRTM Ground Elevation (ft NAVD88)7552.49
Total Depth (ft)43.00
USBR Total Depth (ft)43
USGS Well Depth (ft)38.00
Model Layer1
Model Layer SourceAquifer Type
Depth of Bottom of Layer 191
Depth of Bottom of Layer 2244
Depth of Bottom of Layer 31420
Depth of Bottom of Layer 44916
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 Count520
Water-level Date Range09/14/1984 thru 09/15/2024
Monitored within the last 18 monthsYes, most recently on 09/15/2024
Depth-to-Water Range (ft)2.97 to 11.76
Water Table Elevation Range (ft NAVD88)7534.70 to 7543.49
Water-Level-Source:Number-of-MeasurementsUSGS:253 USBR:444

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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)
09/14/19846.687539.78USGS,USBR
10/12/19846.947539.52USGS,USBR
12/28/19847.127539.34USGS,USBR
01/17/19857.257539.21USGS,USBR
02/20/19857.467539.00USGS,USBR
03/19/19856.677539.79USGS,USBR
04/24/19856.617539.85USGS,USBR
08/22/19856.217540.25USGS,USBR
09/19/19856.267540.20USGS,USBR
10/16/19856.917539.55USGS,USBR
11/18/19856.817539.65USGS,USBR
12/24/19856.767539.70USGS,USBR
01/13/19867.107539.36USGS,USBR
02/17/19867.157539.31USGS,USBR
03/25/19866.377540.09USGS,USBR
05/22/19865.387541.08USGS,USBR
09/21/19866.237540.23USGS,USBR
12/23/19864.707541.76USGS,USBR
02/23/19875.827540.64USGS,USBR
08/26/19875.687540.78USGS,USBR
09/22/19875.697540.77USGS,USBR
10/22/19876.017540.45USGS,USBR
11/23/19875.937540.53USGS,USBR
12/28/19876.267540.20USGS,USBR
01/22/19886.467540.00USGS,USBR
05/25/19883.997542.47USGS,USBR
06/15/19883.787542.68USGS,USBR
07/15/19884.037542.43USGS,USBR
08/15/19885.807540.66USGS,USBR
10/15/19886.497539.97USGS,USBR
11/01/19886.257540.21USGS,USBR
12/15/19886.287540.18USGS,USBR
02/15/19897.057539.41USGS,USBR
03/15/19896.647539.82USGS,USBR
04/15/19895.567540.90USGS,USBR
07/26/19897.377539.09USGS,USBR
08/15/19897.427539.04USGS,USBR
09/15/19897.937538.53USGS,USBR
10/15/19898.057538.41USGS,USBR
11/15/19897.977538.49USGS,USBR
12/15/19897.967538.50USGS,USBR
01/15/19908.047538.42USGS,USBR
02/15/19908.127538.34USGS,USBR
03/15/19907.047539.42USGS,USBR
04/15/19906.597539.87USGS,USBR
05/15/19905.517540.95USGS,USBR
06/13/19905.707540.76USGS,USBR
07/15/19906.077540.39USGS,USBR
08/15/19907.127539.34USGS,USBR
09/15/19907.687538.78USGS,USBR
10/15/19907.597538.87USGS,USBR
11/15/19906.977539.49USGS,USBR
12/15/19906.857539.61USGS,USBR
01/15/19917.027539.44USGS,USBR
02/15/19917.357539.11USGS,USBR
03/15/19916.897539.57USGS,USBR
04/15/19915.967540.50USGS,USBR
05/15/19915.527540.94USGS,USBR
06/15/19915.327541.14USGS,USBR
07/15/19916.387540.08USGS,USBR
08/15/19916.527539.94USGS,USBR
09/15/19917.297539.17USGS,USBR
10/16/19917.477538.99USGS,USBR
11/15/19917.347539.12USGS,USBR
12/15/19917.327539.14USGS,USBR
01/15/19927.457539.01USGS,USBR
03/15/19927.187539.28USGS,USBR
04/15/19925.537540.93USGS,USBR
05/15/19925.117541.35USGS,USBR
06/15/19923.757542.71USGS,USBR
08/15/19924.107542.36USGS,USBR
09/15/19924.477541.99USGS,USBR
10/15/19924.887541.58USGS,USBR
12/15/19925.197541.27USGS,USBR
01/15/19935.797540.67USGS,USBR
02/15/19935.967540.50USGS,USBR
03/15/19934.327542.14USGS,USBR
04/15/19933.397543.07USGS,USBR
05/15/19934.227542.24USGS,USBR
06/15/19933.657542.81USGS,USBR
07/15/19935.007541.46USGS,USBR
08/15/19936.467540.00USGS,USBR
09/15/19936.767539.70USGS,USBR
10/15/19937.027539.44USGS,USBR
11/15/19936.537539.93USGS,USBR
12/15/19936.377540.09USGS,USBR
01/15/19946.987539.48USGS,USBR
02/15/19947.117539.35USGS,USBR
03/15/19946.577539.89USGS,USBR
04/15/19945.447541.02USGS,USBR
05/15/19944.617541.85USGS,USBR
06/15/19943.957542.51USGS,USBR
07/15/19945.737540.73USGS,USBR
08/15/19946.937539.53USGS,USBR
09/15/19947.517538.95USGS,USBR
10/20/19947.747538.72USBR
10/20/19947.727538.74USGS
11/15/19947.457539.01USGS,USBR
12/15/19947.527538.94USGS,USBR
01/24/19957.807538.66USBR
01/24/19957.787538.68USGS
02/15/19957.617538.85USGS,USBR
03/15/19956.897539.57USGS,USBR
04/18/19956.387540.08USGS
04/18/19956.407540.06USBR
05/15/19955.917540.55USGS,USBR
06/15/19955.617540.85USGS,USBR
07/18/19953.117543.35USGS
07/18/19953.137543.33USBR
08/15/19954.187542.28USGS,USBR
09/15/19954.877541.59USGS,USBR
10/24/19955.407541.06USGS
10/24/19955.427541.04USBR
11/29/19955.407541.06USGS
11/29/19955.427541.04USBR
12/15/19955.187541.28USGS,USBR
01/09/19965.727540.74USGS
01/09/19965.747540.72USBR
02/14/19966.007540.46USGS
02/14/19966.027540.44USBR
03/20/19964.777541.69USBR
03/20/19964.757541.71USGS
04/23/19964.067542.40USGS,USBR
05/29/19965.467541.00USGS
05/29/19965.487540.98USBR
06/25/19966.457540.01USGS
06/25/19966.477539.99USBR
07/30/19967.477538.99USGS
07/30/19967.497538.97USBR
08/28/19968.047538.42USBR
08/28/19968.027538.44USGS
09/24/19968.287538.18USGS
09/24/19968.307538.16USBR
10/29/19968.407538.06USGS,USBR
10/30/19968.387538.08USGS
12/05/19968.237538.23USGS
12/05/19968.257538.21USBR
01/09/19978.247538.22USGS
01/09/19978.267538.20USBR
02/04/19978.317538.15USGS
02/04/19978.337538.13USBR
03/06/19978.097538.37USBR
03/06/19978.077538.39USGS
04/02/19977.727538.74USGS
04/15/19977.727538.74USGS,USBR
04/29/19977.617538.85USGS
05/27/19977.907538.56USGS,USBR
05/28/19977.807538.66USGS
06/09/19977.857538.61USGS,USBR
06/24/19977.197539.27USGS
06/24/19977.217539.25USBR
07/30/19977.687538.78USGS
07/30/19977.707538.76USBR
08/26/19977.647538.82USGS
08/26/19977.667538.80USBR
09/23/19978.097538.37USBR
09/23/19978.077538.39USGS
10/29/19977.927538.54USGS
10/29/19977.947538.52USBR
12/04/19977.707538.76USGS
12/04/19977.727538.74USBR
01/14/19987.697538.77USGS
01/14/19987.717538.75USBR
02/10/19987.757538.71USBR
02/10/19987.737538.73USGS
03/12/19987.617538.85USGS
03/17/19987.477538.99USGS,USBR
04/07/19986.897539.57USGS
04/16/19986.817539.65USGS,USBR
05/06/19986.607539.86USGS
05/20/19986.717539.75USGS,USBR
06/02/19987.057539.41USBR
06/02/19987.037539.43USGS
06/23/19987.567538.90USGS,USBR
06/30/19987.747538.72USGS
07/28/19987.847538.62USBR
07/28/19987.827538.64USGS
09/03/19988.287538.18USGS
09/03/19988.307538.16USBR
10/07/19988.557537.91USBR
10/07/19988.537537.93USGS
11/03/19988.267538.20USGS
11/03/19988.287538.18USBR
12/08/19987.997538.47USGS
12/08/19988.017538.45USBR
01/13/19997.977538.49USGS
01/13/19997.997538.47USBR
02/05/19997.677538.79USGS
02/09/19997.547538.92USGS
02/09/19997.567538.90USBR
03/01/19997.147539.32USGS
03/09/19997.017539.45USBR
03/09/19996.997539.47USGS
04/07/19996.577539.89USBR
04/07/19996.557539.91USGS
05/05/19996.177540.29USGS
05/05/19996.197540.27USBR
06/02/19996.277540.19USGS
06/02/19996.297540.17USBR
07/01/19996.337540.13USGS
07/01/19996.357540.11USBR
07/26/19996.867539.60USGS
07/26/19996.887539.58USBR
09/20/19995.567540.90USGS
09/20/19995.587540.88USBR
10/27/19995.757540.71USGS
10/27/19995.777540.69USBR
11/29/19995.887540.58USGS
11/29/19995.907540.56USBR
12/16/19995.987540.48USGS,USBR
01/04/20006.247540.22USGS
01/04/20006.267540.20USBR
02/03/20006.127540.34USGS
02/15/20005.787540.68USGS,USBR
03/01/20005.227541.24USBR
03/01/20005.207541.26USGS
03/28/20004.607541.86USBR
03/28/20004.587541.88USGS
04/05/20004.287542.18USGS
04/24/20004.537541.93USBR
04/24/20004.517541.95USGS
05/23/20005.417541.05USBR
05/23/20005.397541.07USGS
06/20/20006.627539.84USGS,USBR
07/18/20007.517538.95USGS,USBR
09/20/20008.687537.78USGS,USBR
10/25/20008.867537.60USGS,USBR
12/05/20008.807537.66USGS,USBR
01/09/20018.787537.68USGS,USBR
02/07/20018.827537.64USGS,USBR
03/01/20018.697537.77USGS,USBR
04/04/20018.337538.13USGS,USBR
05/01/20018.257538.21USGS,USBR
05/29/20018.047538.42USGS,USBR
06/15/20018.337538.13USGS,USBR
07/24/20018.987537.48USGS,USBR
08/21/20019.207537.26USGS,USBR
09/19/20019.417537.05USGS,USBR
10/23/20019.427537.04USGS,USBR
12/06/20019.267537.20USGS,USBR
01/15/20029.197537.27USGS,USBR
02/15/20029.147537.32USGS,USBR
03/20/20029.027537.44USGS,USBR
04/19/20028.937537.53USGS,USBR
05/14/20029.087537.38USGS,USBR
06/18/20029.607536.86USGS,USBR
07/19/20029.857536.61USGS,USBR
08/13/200210.037536.43USGS,USBR
09/11/200210.217536.25USGS,USBR
10/10/200210.287536.18USGS,USBR
11/13/200210.207536.26USGS,USBR
12/18/200210.077536.39USGS,USBR
01/23/200310.007536.46USGS,USBR
02/20/20039.887536.58USGS,USBR
03/20/20039.757536.71USGS,USBR
04/17/20039.697536.77USGS,USBR
05/14/20039.757536.71USGS,USBR
06/11/20039.857536.61USGS,USBR
07/10/200310.007536.46USGS,USBR
08/06/200310.137536.33USGS,USBR
09/04/200310.267536.20USGS,USBR
10/07/200310.197536.27USGS,USBR
11/19/200310.057536.41USGS,USBR
12/17/20039.987536.48USGS,USBR
01/22/20049.937536.53USGS,USBR
02/24/20049.867536.60USGS,USBR
03/23/20049.817536.65USGS,USBR
04/21/20049.717536.75USGS,USBR
05/18/20049.787536.68USGS,USBR
06/16/200410.147536.32USGS,USBR
07/20/200410.457536.01USGS,USBR
08/18/200410.597535.87USGS,USBR
09/22/200410.757535.71USGS,USBR
10/15/200410.687535.78USGS,USBR
11/15/200410.607535.86USGS,USBR
12/15/200410.537535.93USGS,USBR
01/24/200510.507535.96USGS,USBR
01/26/200510.507535.96USGS
04/12/200510.327536.14USGS,USBR
05/10/200510.297536.17USGS,USBR
06/15/200510.067536.40USGS,USBR
07/08/20059.397537.07USGS,USBR
08/23/20059.917536.55USGS
08/26/20059.947536.52USGS,USBR
10/03/200510.277536.19USGS,USBR
10/24/200510.277536.19USGS,USBR
11/07/200510.247536.22USBR
01/04/200610.237536.23USGS,USBR
01/15/200610.237536.23USBR
02/15/200610.217536.25USBR
03/15/200610.207536.26USBR
04/15/200610.167536.30USBR
05/15/200610.277536.19USBR
06/15/200610.757535.71USBR
07/15/200610.997535.47USBR
08/15/200611.147535.32USBR
09/15/200611.227535.24USBR
10/16/200611.187535.28USBR
11/15/200610.997535.47USBR
12/15/200610.867535.60USBR
01/15/200710.787535.68USBR
02/15/200710.717535.75USBR
03/15/200710.637535.83USBR
04/15/200710.557535.91USBR
05/15/200710.417536.05USBR
06/15/20077.337539.13USBR
07/15/20077.177539.29USBR
08/16/20076.477539.99USBR
09/16/20077.427539.04USBR
10/15/20077.767538.70USBR
10/25/20077.887538.58USBR
12/28/20078.117538.35USBR
03/15/20088.087538.38USBR
04/15/20087.667538.80USBR
05/15/20087.897538.57USBR
06/15/20088.117538.35USBR
07/14/20088.067538.40USBR
08/15/20088.777537.69USBR
09/14/20089.107537.36USBR
10/18/20089.327537.14USBR
11/15/20089.357537.11USBR
12/16/20089.317537.15USBR
01/15/20099.397537.07USBR
02/15/20099.407537.06USBR
03/15/20099.337537.13USBR
04/15/20099.247537.22USBR
05/15/20099.007537.46USBR
06/15/20094.937541.53USBR
07/15/20093.587542.88USBR
08/15/20095.537540.93USBR
09/17/20096.627539.84USBR
10/15/20097.037539.43USBR
11/15/20097.247539.22USBR
12/15/20097.467539.00USBR
01/15/20107.707538.76USBR
02/15/20107.837538.63USBR
03/15/20107.897538.57USBR
04/15/20107.597538.87USBR
05/15/20107.537538.93USBR
06/15/20106.267540.20USBR
07/15/20107.367539.10USBR
08/15/20108.177538.29USBR
09/15/20108.727537.74USBR
10/15/20108.997537.47USBR
11/15/20109.127537.34USBR
12/15/20109.177537.29USBR
01/15/20119.217537.25USBR
02/15/20119.267537.20USBR
03/15/20119.277537.19USBR
04/15/20119.297537.17USBR
05/15/20119.337537.13USBR
06/15/20119.497536.97USBR
07/15/20119.787536.68USBR
08/15/201110.087536.38USBR
09/20/201110.357536.11USBR
09/28/201110.407536.06USBR
12/20/201110.447536.02USBR
03/27/201210.377536.09USBR
05/01/201210.347536.12USGS
06/15/201210.457536.01USBR
07/15/201210.837535.63USBR
08/08/201211.007535.46USGS
08/15/201211.047535.42USBR
09/15/201211.207535.26USBR
10/15/201211.277535.19USBR
11/01/201211.287535.18USGS
11/15/201211.257535.21USBR
12/15/201211.247535.22USBR
01/15/201311.217535.25USBR
02/07/201311.267535.20USGS
02/15/201311.217535.25USBR
03/15/201311.177535.29USBR
04/15/201311.087535.38USBR
05/03/201311.057535.41USGS
05/15/201311.077535.39USBR
06/15/201311.357535.11USBR
07/15/201311.517534.95USBR
08/14/201311.657534.81USGS
08/15/201311.627534.84USBR
09/15/201311.747534.72USBR
10/15/201311.747534.72USBR
11/08/201311.687534.78USGS
11/15/201311.687534.78USBR
12/15/201311.647534.82USBR
01/15/201411.617534.85USBR
02/15/201411.587534.88USBR
02/20/201411.607534.86USGS
03/15/201411.497534.97USBR
04/15/201411.417535.05USBR
05/06/201411.347535.12USGS
05/15/201411.397535.07USBR
06/15/201410.917535.55USBR
07/15/201410.957535.51USBR
08/06/201411.007535.46USGS
08/15/201411.157535.31USBR
09/15/201411.387535.08USBR
10/15/201411.437535.03USBR
11/06/201411.407535.06USGS
11/15/201411.407535.06USBR
12/15/201411.377535.09USBR
02/09/201511.307535.16USGS
02/15/201511.307535.16USBR
03/15/201511.297535.17USBR
04/15/201511.257535.21USBR
05/15/201511.287535.18USBR
05/27/201510.497535.97USGS
06/16/20155.267541.20USBR
07/15/20153.607542.86USBR
07/27/20153.457543.01USBR
08/15/20154.237542.23USBR
08/19/20154.507541.96USGS
09/15/20155.877540.59USBR
10/15/20156.687539.78USBR
11/15/20156.997539.47USBR
12/15/20157.227539.24USBR
01/15/20167.477538.99USBR
02/15/20167.767538.70USBR
03/15/20167.607538.86USBR
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