Well NA04301035CAC1 EW-55U (EW55U)
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Co-located Well(s):
NA04301035CAC2 (EW55C)

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Well Information Table
Common Well ID	NA04301035CAC1 EW-55U
USBR Well ID	EW55U
USGS Well ID	375523105505301
GSDNP Well Name	375523105505301
USGS Station Name	NA04301035CAC1 EW-55U
USGS Site Type	Well
USGS Site Use Information	Observation
USGS Groundwater Use Information	Unknown
Data Source(s)	USGS, USBR
Location Data
TRS	NA04301035CAC1 EW-55U
USBR TRS	NA04301035CAC1
USGS TRS 1	NA04301035CAC1 EW-55U
Longitude/Latitude (NAD83)	-105.84855232 , 37.92302001
Longitude/Latitude Data Source	USBOR 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 County	Saguache County
Elevation and Depth Data
Ground Elevation (ft NAVD88)	7546.46
Elevation Data Source	USBOR 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)	7544.33
SRTM Ground Elevation (ft NAVD88)	7552.49
Total Depth (ft)	43.00
USBR Total Depth (ft)	43
USGS Well Depth (ft)	38.00
Model Layer	1
Model Layer Source	Dunes Layer
Depth of Bottom of Layer 1	91
Depth of Bottom of Layer 2	244
Depth of Bottom of Layer 3	1420
Depth of Bottom of Layer 4	4916
Aquifer Information
Aquifer Type	Unconfined
Aquifer Type Source	EW_AQFR
USGS Data Available	Water-level (GW.LEV)
Water-level Count	312
Water-level Date Range	09/14/1984 thru 03/15/2007
Water-level Sources	RGWCD:0, USBR:254, USGS:239, HRS:0

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Water-Level Data

1970 to Present

1944 to Present

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Measurement Date	Depth to Water (ft)	Elevation (ft NAVD88)	Data Source(s)
09/14/1984	6.68	7539.78	USGS,USBR
10/12/1984	6.94	7539.52	USGS,USBR
12/28/1984	7.12	7539.34	USGS,USBR
01/17/1985	7.25	7539.21	USGS,USBR
02/20/1985	7.46	7539.00	USGS,USBR
03/19/1985	6.67	7539.79	USGS,USBR
04/24/1985	6.61	7539.85	USGS,USBR
08/22/1985	6.21	7540.25	USGS,USBR
09/19/1985	6.26	7540.20	USGS,USBR
10/16/1985	6.91	7539.55	USGS,USBR
11/18/1985	6.81	7539.65	USGS,USBR
12/24/1985	6.76	7539.70	USGS,USBR
01/13/1986	7.10	7539.36	USGS,USBR
02/17/1986	7.15	7539.31	USGS,USBR
03/25/1986	6.37	7540.09	USGS,USBR
05/22/1986	5.38	7541.08	USGS,USBR
09/21/1986	6.23	7540.23	USGS,USBR
12/23/1986	4.70	7541.76	USGS,USBR
02/23/1987	5.82	7540.64	USGS,USBR
08/26/1987	5.68	7540.78	USGS,USBR
09/22/1987	5.69	7540.77	USGS,USBR
10/22/1987	6.01	7540.45	USGS,USBR
11/23/1987	5.93	7540.53	USGS,USBR
12/28/1987	6.26	7540.20	USGS,USBR
01/22/1988	6.46	7540.00	USGS,USBR
05/25/1988	3.99	7542.47	USGS,USBR
06/15/1988	3.78	7542.68	USGS,USBR
07/15/1988	4.03	7542.43	USGS,USBR
08/15/1988	5.80	7540.66	USGS,USBR
10/15/1988	6.49	7539.97	USGS,USBR
11/01/1988	6.25	7540.21	USGS,USBR
12/15/1988	6.28	7540.18	USGS,USBR
02/15/1989	7.05	7539.41	USGS,USBR
03/15/1989	6.64	7539.82	USGS,USBR
04/15/1989	5.56	7540.90	USGS,USBR
07/26/1989	7.37	7539.09	USGS,USBR
08/15/1989	7.42	7539.04	USGS,USBR
09/15/1989	7.93	7538.53	USGS,USBR
10/15/1989	8.05	7538.41	USGS,USBR
11/15/1989	7.97	7538.49	USGS,USBR
12/15/1989	7.96	7538.50	USGS,USBR
01/15/1990	8.04	7538.42	USGS,USBR
02/15/1990	8.12	7538.34	USGS,USBR
03/15/1990	7.04	7539.42	USGS,USBR
04/15/1990	6.59	7539.87	USGS,USBR
05/15/1990	5.51	7540.95	USGS,USBR
06/13/1990	5.70	7540.76	USGS,USBR
07/15/1990	6.07	7540.39	USGS,USBR
08/15/1990	7.12	7539.34	USGS,USBR
09/15/1990	7.68	7538.78	USGS,USBR
10/15/1990	7.59	7538.87	USGS,USBR
11/15/1990	6.97	7539.49	USGS,USBR
12/15/1990	6.85	7539.61	USGS,USBR
01/15/1991	7.02	7539.44	USGS,USBR
02/15/1991	7.35	7539.11	USGS,USBR
03/15/1991	6.89	7539.57	USGS,USBR
04/15/1991	5.96	7540.50	USGS,USBR
05/15/1991	5.52	7540.94	USGS,USBR
06/15/1991	5.32	7541.14	USGS,USBR
07/15/1991	6.38	7540.08	USGS,USBR
08/15/1991	6.52	7539.94	USGS,USBR
09/15/1991	7.29	7539.17	USGS,USBR
10/16/1991	7.47	7538.99	USGS,USBR
11/15/1991	7.34	7539.12	USGS,USBR
12/15/1991	7.32	7539.14	USGS,USBR
01/15/1992	7.45	7539.01	USGS,USBR
03/15/1992	7.18	7539.28	USGS,USBR
04/15/1992	5.53	7540.93	USGS,USBR
05/15/1992	5.11	7541.35	USGS,USBR
06/15/1992	3.75	7542.71	USGS,USBR
08/15/1992	4.10	7542.36	USGS,USBR
09/15/1992	4.47	7541.99	USGS,USBR
10/15/1992	4.88	7541.58	USGS,USBR
12/15/1992	5.19	7541.27	USGS,USBR
01/15/1993	5.79	7540.67	USGS,USBR
02/15/1993	5.96	7540.50	USGS,USBR
03/15/1993	4.32	7542.14	USGS,USBR
04/15/1993	3.39	7543.07	USGS,USBR
05/15/1993	4.22	7542.24	USGS,USBR
06/15/1993	3.65	7542.81	USGS,USBR
07/15/1993	5.00	7541.46	USGS,USBR
08/15/1993	6.46	7540.00	USGS,USBR
09/15/1993	6.76	7539.70	USGS,USBR
10/15/1993	7.02	7539.44	USGS,USBR
11/15/1993	6.53	7539.93	USGS,USBR
12/15/1993	6.37	7540.09	USGS,USBR
01/15/1994	6.98	7539.48	USGS,USBR
02/15/1994	7.11	7539.35	USGS,USBR
03/15/1994	6.57	7539.89	USGS,USBR
04/15/1994	5.44	7541.02	USGS,USBR
05/15/1994	4.61	7541.85	USGS,USBR
06/15/1994	3.95	7542.51	USGS,USBR
07/15/1994	5.73	7540.73	USGS,USBR
08/15/1994	6.93	7539.53	USGS,USBR
09/15/1994	7.51	7538.95	USGS,USBR
10/20/1994	7.74	7538.72	USBR
10/20/1994	7.72	7538.74	USGS
11/15/1994	7.45	7539.01	USGS,USBR
12/15/1994	7.52	7538.94	USGS,USBR
01/24/1995	7.80	7538.66	USBR
01/24/1995	7.78	7538.68	USGS
02/15/1995	7.61	7538.85	USGS,USBR
03/15/1995	6.89	7539.57	USGS,USBR
04/18/1995	6.40	7540.06	USBR
04/18/1995	6.38	7540.08	USGS
05/15/1995	5.91	7540.55	USGS,USBR
06/15/1995	5.61	7540.85	USGS,USBR
07/18/1995	3.11	7543.35	USGS
07/18/1995	3.13	7543.33	USBR
08/15/1995	4.18	7542.28	USGS,USBR
09/15/1995	4.87	7541.59	USGS,USBR
10/24/1995	5.42	7541.04	USBR
10/24/1995	5.40	7541.06	USGS
11/29/1995	5.42	7541.04	USBR
11/29/1995	5.40	7541.06	USGS
12/15/1995	5.18	7541.28	USGS,USBR
01/09/1996	5.74	7540.72	USBR
01/09/1996	5.72	7540.74	USGS
02/14/1996	6.02	7540.44	USBR
02/14/1996	6.00	7540.46	USGS
03/20/1996	4.75	7541.71	USGS
03/20/1996	4.77	7541.69	USBR
04/23/1996	4.06	7542.40	USGS,USBR
05/29/1996	5.48	7540.98	USBR
05/29/1996	5.46	7541.00	USGS
06/25/1996	6.45	7540.01	USGS
06/25/1996	6.47	7539.99	USBR
07/30/1996	7.49	7538.97	USBR
07/30/1996	7.47	7538.99	USGS
08/28/1996	8.04	7538.42	USBR
08/28/1996	8.02	7538.44	USGS
09/24/1996	8.30	7538.16	USBR
09/24/1996	8.28	7538.18	USGS
10/29/1996	8.40	7538.06	USGS,USBR
10/30/1996	8.40	7538.06	USBR
10/30/1996	8.38	7538.08	USGS
12/05/1996	8.25	7538.21	USBR
12/05/1996	8.23	7538.23	USGS
01/09/1997	8.26	7538.20	USBR
01/09/1997	8.24	7538.22	USGS
02/04/1997	8.33	7538.13	USBR
02/04/1997	8.31	7538.15	USGS
03/06/1997	8.07	7538.39	USGS
03/06/1997	8.09	7538.37	USBR
04/02/1997	7.74	7538.72	USBR
04/02/1997	7.72	7538.74	USGS
04/15/1997	7.72	7538.74	USGS,USBR
04/29/1997	7.61	7538.85	USGS
04/29/1997	7.63	7538.83	USBR
05/27/1997	7.90	7538.56	USGS,USBR
05/28/1997	7.82	7538.64	USBR
05/28/1997	7.80	7538.66	USGS
06/09/1997	7.85	7538.61	USGS,USBR
06/24/1997	7.19	7539.27	USGS
06/24/1997	7.21	7539.25	USBR
07/30/1997	7.68	7538.78	USGS
07/30/1997	7.70	7538.76	USBR
08/26/1997	7.66	7538.80	USBR
08/26/1997	7.64	7538.82	USGS
09/23/1997	8.07	7538.39	USGS
09/23/1997	8.09	7538.37	USBR
10/29/1997	7.94	7538.52	USBR
10/29/1997	7.92	7538.54	USGS
12/04/1997	7.72	7538.74	USBR
12/04/1997	7.70	7538.76	USGS
01/14/1998	7.71	7538.75	USBR
01/14/1998	7.69	7538.77	USGS
02/10/1998	7.75	7538.71	USBR
02/10/1998	7.73	7538.73	USGS
03/12/1998	7.61	7538.85	USGS
03/12/1998	7.63	7538.83	USBR
03/17/1998	7.47	7538.99	USGS,USBR
04/07/1998	6.89	7539.57	USGS
04/07/1998	6.91	7539.55	USBR
04/16/1998	6.81	7539.65	USGS,USBR
05/06/1998	6.62	7539.84	USBR
05/06/1998	6.60	7539.86	USGS
05/20/1998	6.71	7539.75	USGS,USBR
06/02/1998	7.03	7539.43	USGS
06/02/1998	7.05	7539.41	USBR
06/23/1998	7.56	7538.90	USGS,USBR
06/30/1998	7.74	7538.72	USGS
06/30/1998	7.76	7538.70	USBR
07/28/1998	7.82	7538.64	USGS
07/28/1998	7.84	7538.62	USBR
09/03/1998	8.30	7538.16	USBR
09/03/1998	8.28	7538.18	USGS
10/07/1998	8.55	7537.91	USBR
10/07/1998	8.53	7537.93	USGS
11/03/1998	8.28	7538.18	USBR
11/03/1998	8.26	7538.20	USGS
12/08/1998	7.99	7538.47	USGS
12/08/1998	8.01	7538.45	USBR
01/13/1999	7.99	7538.47	USBR
01/13/1999	7.97	7538.49	USGS
02/05/1999	7.67	7538.79	USGS,USBR
02/09/1999	7.56	7538.90	USBR
02/09/1999	7.54	7538.92	USGS
03/01/1999	7.14	7539.32	USGS,USBR
03/09/1999	7.01	7539.45	USBR
03/09/1999	6.99	7539.47	USGS
04/07/1999	6.57	7539.89	USBR
04/07/1999	6.55	7539.91	USGS
05/05/1999	6.19	7540.27	USBR
05/05/1999	6.17	7540.29	USGS
06/02/1999	6.29	7540.17	USBR
06/02/1999	6.27	7540.19	USGS
07/01/1999	6.33	7540.13	USGS
07/01/1999	6.35	7540.11	USBR
07/26/1999	6.88	7539.58	USBR
07/26/1999	6.86	7539.60	USGS
09/20/1999	5.58	7540.88	USBR
09/20/1999	5.56	7540.90	USGS
10/27/1999	5.75	7540.71	USGS
10/27/1999	5.77	7540.69	USBR
11/29/1999	5.88	7540.58	USGS
11/29/1999	5.90	7540.56	USBR
12/16/1999	5.98	7540.48	USGS,USBR
01/04/2000	6.26	7540.20	USBR
01/04/2000	6.24	7540.22	USGS
02/03/2000	6.14	7540.32	USBR
02/03/2000	6.12	7540.34	USGS
02/15/2000	5.78	7540.68	USGS,USBR
03/01/2000	5.22	7541.24	USBR
03/01/2000	5.20	7541.26	USGS
03/28/2000	4.60	7541.86	USBR
03/28/2000	4.58	7541.88	USGS
04/05/2000	4.28	7542.18	USGS,USBR
04/24/2000	4.53	7541.93	USBR
04/24/2000	4.51	7541.95	USGS
05/23/2000	5.39	7541.07	USGS
05/23/2000	5.41	7541.05	USBR
06/20/2000	6.62	7539.84	USGS,USBR
07/18/2000	7.51	7538.95	USGS,USBR
09/20/2000	8.68	7537.78	USGS,USBR
10/25/2000	8.86	7537.60	USGS,USBR
12/05/2000	8.80	7537.66	USGS,USBR
01/09/2001	8.78	7537.68	USGS,USBR
02/07/2001	8.82	7537.64	USGS,USBR
03/01/2001	8.69	7537.77	USGS,USBR
04/04/2001	8.33	7538.13	USGS,USBR
05/01/2001	8.25	7538.21	USGS,USBR
05/29/2001	8.04	7538.42	USGS,USBR
06/15/2001	8.33	7538.13	USGS,USBR
07/24/2001	8.98	7537.48	USGS,USBR
08/21/2001	9.20	7537.26	USGS,USBR
09/19/2001	9.41	7537.05	USGS,USBR
10/23/2001	9.42	7537.04	USGS,USBR
12/06/2001	9.26	7537.20	USGS,USBR
01/15/2002	9.19	7537.27	USGS,USBR
02/15/2002	9.14	7537.32	USGS,USBR
03/20/2002	9.02	7537.44	USGS,USBR
04/19/2002	8.93	7537.53	USGS,USBR
05/14/2002	9.08	7537.38	USGS,USBR
06/18/2002	9.60	7536.86	USGS,USBR
07/19/2002	9.85	7536.61	USGS,USBR
08/13/2002	10.03	7536.43	USGS,USBR
09/11/2002	10.21	7536.25	USGS,USBR
10/10/2002	10.28	7536.18	USGS,USBR
11/13/2002	10.20	7536.26	USGS,USBR
12/18/2002	10.07	7536.39	USGS,USBR
01/23/2003	10.00	7536.46	USGS,USBR
02/20/2003	9.88	7536.58	USGS,USBR
03/20/2003	9.75	7536.71	USGS,USBR
04/17/2003	9.69	7536.77	USGS,USBR
05/14/2003	9.75	7536.71	USGS,USBR
06/11/2003	9.85	7536.61	USGS,USBR
07/10/2003	10.00	7536.46	USGS,USBR
08/06/2003	10.13	7536.33	USGS,USBR
09/04/2003	10.26	7536.20	USGS,USBR
10/07/2003	10.19	7536.27	USGS,USBR
11/19/2003	10.05	7536.41	USGS,USBR
12/17/2003	9.98	7536.48	USGS,USBR
01/22/2004	9.93	7536.53	USGS,USBR
02/24/2004	9.86	7536.60	USGS,USBR
03/23/2004	9.81	7536.65	USGS,USBR
04/21/2004	9.71	7536.75	USGS,USBR
05/18/2004	9.78	7536.68	USGS,USBR
06/16/2004	10.14	7536.32	USGS,USBR
07/20/2004	10.45	7536.01	USGS,USBR
08/18/2004	10.59	7535.87	USGS,USBR
09/22/2004	10.75	7535.71	USGS,USBR
10/15/2004	10.68	7535.78	USGS,USBR
11/15/2004	10.60	7535.86	USGS,USBR
12/15/2004	10.53	7535.93	USGS,USBR
01/24/2005	10.50	7535.96	USGS,USBR
01/26/2005	10.50	7535.96	USGS,USBR
04/12/2005	10.32	7536.14	USGS,USBR
05/10/2005	10.29	7536.17	USGS,USBR
06/15/2005	10.06	7536.40	USGS,USBR
07/08/2005	9.39	7537.07	USGS,USBR
08/23/2005	9.91	7536.55	USGS,USBR
08/26/2005	9.94	7536.52	USGS,USBR
10/03/2005	10.27	7536.19	USGS,USBR
10/24/2005	10.27	7536.19	USGS,USBR
01/04/2006	10.23	7536.23	USGS
01/15/2006	10.23	7536.23	USBR
02/15/2006	10.21	7536.25	USBR
03/15/2006	10.20	7536.26	USBR
04/15/2006	10.16	7536.30	USBR
05/15/2006	10.27	7536.19	USBR
06/15/2006	10.75	7535.71	USBR
07/15/2006	10.99	7535.47	USBR
08/15/2006	11.14	7535.32	USBR
09/14/2006	11.23	7535.23	USBR
09/15/2006	11.22	7535.24	USBR
10/15/2006	11.18	7535.28	USBR
11/15/2006	10.99	7535.47	USBR
12/15/2006	10.86	7535.60	USBR
01/15/2007	10.78	7535.68	USBR
02/15/2007	10.71	7535.75	USBR
03/15/2007	10.63	7535.83	USBR

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Well NA04301035CAC1 EW-55U (EW55U)Unconfined

View Digital Orthophoto Quadrangle for this area

Water-Level Data

1970 to Present

1944 to Present

Well NA04301035CAC1 EW-55U (EW55U)
Unconfined