Well NA04201027DAD2 EW-52C (EW52C) Confined
Co-located Well(s): NA04201027DAD1 EW-52U (EW52U)

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Well Information Table
Common Well ID	NA04201027DAD2 EW-52C
USBR Well ID	EW52C
USGS Well ID	375123105512202
GSDNP Well Name	375123105512202
USGS Station Name	NA04201027DAD2 EW-52C
USGS Site Type	Well
USGS Site Use Information	Observation
USGS Groundwater Use Information	Unknown
Data Source(s)	USGS, USBR
Location Data
TRS	NA04201027DAD2 EW-52C
USBR TRS	NA04201027DAD2
USGS TRS 1	NA04201027DAD2 EW-52C
Longitude/Latitude (NAD83)	-105.85659487 , 37.85629082
Longitude/Latitude Data Source	USBOR EW well locations
USGS Longitude/Latitude (NAD83)	-105.8566846 , 37.85638835
USBR Longitude/Latitude (NAD27)	-105.856021339625 , 37.8562913594407
Easting, Northing RGDSS-NAD83 (US ft)	147330.83 , 313261.59
USGS County	Saguache County
Elevation and Depth Data
Ground Elevation (ft NAVD88)	7538.25
Elevation Data Source	USBOR EW well database
USBR Ground Elevation (ft NGVD29)	7534.4
USGS Ground Elevation (ft NGVD29)	7534.88
1/3-Arc Second NED Ground Elevation (ft NAVD88)	7535.39
1-Arc Second NED Ground Elevation (ft NAVD88)	7538.01
SRTM Ground Elevation (ft NAVD88)	7535.97
Total Depth (ft)	147.00
USBR Total Depth (ft)	147
USGS Well Depth (ft)	145.00
Model Layer	2
Model Layer Source	Well Depth
Depth of Bottom of Layer 1	91
Depth of Bottom of Layer 2	246
Depth of Bottom of Layer 3	1431
Depth of Bottom of Layer 4	4155
Additional Well Information	NONE
Aquifer Information
Aquifer Type	Confined
Aquifer Type Source	EW_AQFR
USGS Hydrologic Unit	San Luis
USGS Data Available	Water-level (GW.LEV)
Water-level Database Information
Water-level Count	424
Water-level Date Range	10/20/1983 thru 09/15/2024
Monitored within the last 18 months	Yes, most recently on 09/15/2024
Depth-to-Water Range (ft)	0.51 to 14.67
Water Table Elevation Range (ft NAVD88)	7523.58 to 7537.74
Water-Level-Source:Number-of-Measurements	USGS:27 USBR:401

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Water-level Data

2019 to Present

1967 to Present

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Measurement Date	Depth to Water (ft)	Elevation (ft NAVD88)	Data Source(s)
10/20/1983	1.46	7536.79	USBR
03/16/1984	1.40	7536.85	USBR
05/21/1984	1.30	7536.95	USBR
06/22/1984	1.40	7536.85	USBR
08/20/1984	2.00	7536.25	USBR
09/25/1984	1.86	7536.39	USBR
10/18/1984	1.72	7536.53	USBR
11/24/1984	1.72	7536.53	USBR
12/18/1984	1.50	7536.75	USBR
01/20/1985	1.37	7536.88	USBR
02/21/1985	1.35	7536.90	USBR
03/19/1985	1.33	7536.92	USBR
04/24/1985	1.37	7536.88	USBR
05/16/1985	1.23	7537.02	USBR
06/24/1985	1.57	7536.68	USBR
07/23/1985	1.67	7536.58	USBR
08/26/1985	1.99	7536.26	USBR
09/19/1985	2.12	7536.13	USBR
10/16/1985	1.77	7536.48	USBR
11/19/1985	1.13	7537.12	USBR
03/25/1986	1.10	7537.15	USBR
04/21/1986	0.68	7537.57	USBR
05/19/1986	0.51	7537.74	USBR
09/23/1986	1.36	7536.89	USBR
11/03/1988	1.61	7536.64	USBR
10/17/1991	3.33	7534.92	USBR
01/20/1993	5.16	7533.09	USBR
02/15/1993	5.47	7532.78	USBR
03/15/1993	5.87	7532.38	USBR
04/15/1993	5.97	7532.28	USBR
05/15/1993	6.24	7532.01	USBR
06/15/1993	6.41	7531.84	USBR
07/15/1993	6.05	7532.20	USBR
08/15/1993	5.62	7532.63	USBR
09/15/1993	5.09	7533.16	USBR
10/15/1993	5.57	7532.68	USBR
11/15/1993	5.44	7532.81	USBR
12/15/1993	6.13	7532.12	USBR
01/15/1994	7.14	7531.11	USBR
02/15/1994	7.45	7530.80	USBR
03/15/1994	7.84	7530.41	USBR
04/15/1994	6.94	7531.31	USBR
05/15/1994	6.73	7531.52	USBR
06/15/1994	6.59	7531.66	USBR
07/15/1994	7.04	7531.21	USBR
08/15/1994	7.06	7531.19	USBR
09/15/1994	7.21	7531.04	USBR
10/15/1994	7.14	7531.11	USBR
10/27/1994	7.19	7531.06	USGS
10/27/1994	7.20	7531.05	USBR
11/15/1994	6.93	7531.32	USBR
12/15/1994	6.66	7531.59	USBR
01/15/1995	7.06	7531.19	USBR
01/26/1995	7.15	7531.10	USGS,USBR
02/15/1995	7.23	7531.02	USBR
03/15/1995	8.37	7529.88	USBR
04/15/1995	7.70	7530.55	USBR
05/18/1995	7.78	7530.47	USBR
05/18/1995	7.77	7530.48	USGS
06/15/1995	7.85	7530.40	USBR
07/15/1995	6.96	7531.29	USBR
08/23/1995	6.87	7531.38	USGS
08/23/1995	6.88	7531.37	USBR
09/15/1995	7.05	7531.20	USBR
10/15/1995	6.89	7531.36	USBR
11/15/1995	6.86	7531.39	USBR
11/29/1995	6.66	7531.59	USGS
11/29/1995	6.67	7531.58	USBR
12/15/1995	6.84	7531.41	USBR
01/15/1996	6.85	7531.40	USBR
02/14/1996	6.93	7531.32	USBR
02/14/1996	6.92	7531.33	USGS
03/15/1996	7.92	7530.33	USBR
04/24/1996	7.90	7530.35	USGS
04/24/1996	7.91	7530.34	USBR
06/03/1996	8.06	7530.19	USBR
06/26/1996	8.25	7530.00	USBR
07/31/1996	8.51	7529.74	USGS
07/31/1996	8.52	7529.73	USBR
08/29/1996	9.09	7529.16	USBR
09/12/1996	9.05	7529.20	USBR
10/31/1996	9.13	7529.12	USBR
11/15/1996	9.00	7529.25	USBR
12/15/1996	9.13	7529.12	USBR
01/06/1997	9.37	7528.88	USBR
02/15/1997	9.77	7528.48	USBR
03/07/1997	9.91	7528.34	USGS
03/15/1997	9.97	7528.28	USBR
04/15/1997	10.20	7528.05	USBR
05/15/1997	10.56	7527.69	USBR
06/11/1997	10.82	7527.43	USBR
07/15/1997	11.20	7527.05	USBR
08/15/1997	11.26	7526.99	USBR
08/28/1997	11.35	7526.90	USGS
09/09/1997	11.46	7526.79	USBR
10/15/1997	11.26	7526.99	USBR
11/15/1997	11.13	7527.12	USBR
12/15/1997	11.21	7527.04	USBR
01/15/1998	11.20	7527.05	USBR
02/15/1998	11.19	7527.06	USBR
03/15/1998	11.33	7526.92	USBR
04/16/1998	11.35	7526.90	USBR
04/16/1998	11.34	7526.91	USGS
05/15/1998	11.55	7526.70	USBR
06/15/1998	11.96	7526.29	USBR
07/01/1998	12.13	7526.12	USGS
07/15/1998	12.39	7525.86	USBR
08/15/1998	12.43	7525.82	USBR
09/15/1998	12.40	7525.85	USBR
10/07/1998	12.29	7525.96	USGS
10/07/1998	12.30	7525.95	USBR
11/06/1998	12.15	7526.10	USBR
12/15/1998	12.07	7526.18	USBR
01/14/1999	11.86	7526.39	USBR
01/14/1999	11.85	7526.40	USGS
03/02/1999	11.61	7526.64	USBR
04/08/1999	11.58	7526.67	USGS
04/08/1999	11.59	7526.66	USBR
05/07/1999	11.63	7526.62	USBR
07/01/1999	11.92	7526.33	USBR
07/01/1999	11.91	7526.34	USGS
08/15/1999	12.00	7526.25	USBR
09/15/1999	11.74	7526.51	USBR
10/27/1999	11.76	7526.49	USBR
10/27/1999	11.75	7526.50	USGS
11/15/1999	11.60	7526.65	USBR
02/14/2000	11.58	7526.67	USBR
04/25/2000	11.55	7526.70	USBR
04/25/2000	11.54	7526.71	USGS
05/03/2000	11.56	7526.69	USBR
07/26/2000	12.38	7525.87	USBR
10/25/2000	12.05	7526.20	USBR
10/26/2000	12.05	7526.20	USGS
11/28/2000	11.91	7526.34	USBR
01/11/2001	11.83	7526.42	USBR
01/26/2001	11.81	7526.44	USBR
04/18/2001	11.75	7526.50	USBR
05/15/2001	11.70	7526.55	USBR
06/15/2001	11.85	7526.40	USBR
07/03/2001	12.06	7526.19	USBR
08/15/2001	12.26	7525.99	USBR
09/15/2001	12.21	7526.04	USBR
10/22/2001	12.19	7526.06	USBR
10/24/2001	12.16	7526.09	USGS
11/19/2001	12.29	7525.96	USBR
12/15/2001	12.04	7526.21	USBR
01/15/2002	12.11	7526.14	USBR
02/15/2002	12.14	7526.11	USBR
03/12/2002	12.16	7526.09	USBR
04/30/2002	12.21	7526.04	USBR
05/15/2002	12.17	7526.08	USBR
06/15/2002	12.33	7525.92	USBR
07/22/2002	12.79	7525.46	USBR
08/15/2002	12.99	7525.26	USBR
09/15/2002	12.97	7525.28	USBR
10/10/2002	12.63	7525.62	USGS,USBR
11/15/2002	12.33	7525.92	USBR
12/16/2002	12.06	7526.19	USBR
01/15/2003	11.88	7526.37	USBR
02/15/2003	11.90	7526.35	USBR
03/11/2003	12.00	7526.25	USBR
04/17/2003	12.03	7526.22	USGS,USBR
05/15/2003	12.08	7526.17	USBR
05/28/2003	12.17	7526.08	USBR
06/09/2003	12.13	7526.12	USBR
07/15/2003	12.39	7525.86	USBR
08/15/2003	12.59	7525.66	USBR
08/29/2003	12.47	7525.78	USBR
09/15/2003	12.27	7525.98	USBR
10/08/2003	12.07	7526.18	USGS,USBR
11/15/2003	11.99	7526.26	USBR
12/01/2003	11.99	7526.26	USBR
01/15/2004	11.85	7526.40	USBR
03/03/2004	11.68	7526.57	USBR
03/29/2004	11.69	7526.56	USBR
04/21/2004	11.55	7526.70	USGS
05/04/2004	11.61	7526.64	USBR
05/19/2004	11.64	7526.61	USBR
07/09/2004	12.17	7526.08	USBR
08/12/2004	12.28	7525.97	USBR
09/15/2004	12.36	7525.89	USBR
10/18/2004	12.09	7526.16	USBR
10/27/2004	12.07	7526.18	USGS
11/15/2004	12.07	7526.18	USBR
12/15/2004	11.94	7526.31	USBR
01/15/2005	11.86	7526.39	USBR
02/15/2005	11.82	7526.43	USBR
03/15/2005	11.75	7526.50	USBR
04/15/2005	11.76	7526.49	USBR
04/26/2005	11.76	7526.49	USGS
05/15/2005	11.77	7526.48	USBR
06/15/2005	12.04	7526.21	USBR
07/15/2005	12.39	7525.86	USBR
08/15/2005	12.51	7525.74	USBR
09/15/2005	12.43	7525.82	USBR
10/15/2005	12.34	7525.91	USBR
10/20/2005	12.32	7525.93	USGS
11/15/2005	12.33	7525.92	USBR
12/15/2005	12.30	7525.95	USBR
01/15/2006	12.34	7525.91	USBR
02/15/2006	12.33	7525.92	USBR
03/15/2006	12.37	7525.88	USBR
03/31/2006	12.41	7525.84	USBR
04/15/2006	12.33	7525.92	USBR
05/15/2006	12.36	7525.89	USBR
06/15/2006	12.55	7525.70	USBR
08/15/2006	12.99	7525.26	USBR
09/14/2006	12.88	7525.37	USBR
10/16/2006	12.48	7525.77	USBR
11/15/2006	12.44	7525.81	USBR
12/15/2006	12.51	7525.74	USBR
01/15/2007	12.49	7525.76	USBR
02/15/2007	12.45	7525.80	USBR
03/15/2007	12.43	7525.82	USBR
04/15/2007	12.23	7526.02	USBR
05/15/2007	12.26	7525.99	USBR
06/15/2007	12.37	7525.88	USBR
07/15/2007	12.65	7525.60	USBR
08/15/2007	12.57	7525.68	USBR
09/15/2007	12.56	7525.69	USBR
10/15/2007	12.48	7525.77	USBR
11/15/2007	12.49	7525.76	USBR
12/10/2007	12.24	7526.01	USBR
01/15/2008	12.19	7526.06	USBR
02/15/2008	12.08	7526.17	USBR
03/15/2008	12.07	7526.18	USBR
04/15/2008	12.10	7526.15	USBR
05/15/2008	12.13	7526.12	USBR
06/15/2008	12.33	7525.92	USBR
07/15/2008	12.60	7525.65	USBR
08/15/2008	12.82	7525.43	USBR
09/15/2008	12.77	7525.48	USBR
10/15/2008	12.51	7525.74	USBR
11/15/2008	12.22	7526.03	USBR
12/15/2008	11.91	7526.34	USBR
01/15/2009	11.99	7526.26	USBR
02/15/2009	11.95	7526.30	USBR
03/15/2009	11.97	7526.28	USBR
04/15/2009	11.86	7526.39	USBR
05/15/2009	11.98	7526.27	USBR
06/15/2009	12.03	7526.22	USBR
07/15/2009	12.40	7525.85	USBR
08/15/2009	12.67	7525.58	USBR
09/15/2009	12.68	7525.57	USBR
10/15/2009	12.54	7525.71	USBR
11/15/2009	12.32	7525.93	USBR
12/15/2009	12.25	7526.00	USBR
01/15/2010	12.26	7525.99	USBR
02/15/2010	12.12	7526.13	USBR
03/15/2010	12.08	7526.17	USBR
04/15/2010	12.03	7526.22	USBR
05/15/2010	12.11	7526.14	USBR
06/15/2010	12.40	7525.85	USBR
07/15/2010	12.86	7525.39	USBR
08/15/2010	13.11	7525.14	USBR
09/15/2010	13.16	7525.09	USBR
10/15/2010	12.99	7525.26	USBR
11/15/2010	12.79	7525.46	USBR
12/15/2010	12.74	7525.51	USBR
01/15/2011	12.78	7525.47	USBR
02/15/2011	12.65	7525.60	USBR
03/15/2011	12.60	7525.65	USBR
04/15/2011	12.55	7525.70	USBR
05/15/2011	12.65	7525.60	USBR
06/15/2011	12.90	7525.35	USBR
07/15/2011	13.44	7524.81	USBR
08/15/2011	13.85	7524.40	USBR
09/15/2011	13.76	7524.49	USBR
10/15/2011	13.48	7524.77	USBR
11/15/2011	13.22	7525.03	USBR
12/15/2011	13.18	7525.07	USBR
01/15/2012	13.17	7525.08	USBR
02/15/2012	13.10	7525.15	USBR
03/15/2012	13.13	7525.12	USBR
04/15/2012	13.04	7525.21	USBR
05/15/2012	13.14	7525.11	USBR
06/15/2012	13.41	7524.84	USBR
07/15/2012	13.93	7524.32	USBR
08/15/2012	14.11	7524.14	USBR
09/15/2012	14.05	7524.20	USBR
10/15/2012	13.87	7524.38	USBR
11/15/2012	13.52	7524.73	USBR
12/15/2012	13.25	7525.00	USBR
01/15/2013	13.32	7524.93	USBR
02/15/2013	13.36	7524.89	USBR
03/15/2013	13.41	7524.84	USBR
04/15/2013	13.24	7525.01	USBR
05/15/2013	13.43	7524.82	USBR
06/15/2013	13.66	7524.59	USBR
07/15/2013	14.02	7524.23	USBR
08/15/2013	13.95	7524.30	USBR
09/15/2013	13.63	7524.62	USBR
10/15/2013	13.52	7524.73	USBR
11/15/2013	13.52	7524.73	USBR
12/15/2013	13.54	7524.71	USBR
01/15/2014	13.45	7524.80	USBR
02/15/2014	13.35	7524.90	USBR
03/15/2014	13.32	7524.93	USBR
04/15/2014	13.20	7525.05	USBR
05/15/2014	13.23	7525.02	USBR
06/15/2014	13.32	7524.93	USBR
07/15/2014	13.66	7524.59	USBR
08/15/2014	13.78	7524.47	USBR
09/15/2014	13.72	7524.53	USBR
10/15/2014	13.58	7524.67	USBR
11/15/2014	13.47	7524.78	USBR
12/15/2014	13.35	7524.90	USBR
01/15/2015	13.34	7524.91	USBR
02/15/2015	13.25	7525.00	USBR
03/15/2015	13.24	7525.01	USBR
04/15/2015	13.21	7525.04	USBR
05/15/2015	13.12	7525.13	USBR
06/15/2015	13.19	7525.06	USBR
07/15/2015	13.16	7525.09	USBR
08/15/2015	13.20	7525.05	USBR
09/15/2015	13.02	7525.23	USBR
10/15/2015	12.99	7525.26	USBR
11/15/2015	12.80	7525.45	USBR
12/15/2015	12.67	7525.58	USBR
01/14/2016	12.64	7525.61	USBR
02/15/2016	12.73	7525.52	USBR
03/15/2016	12.66	7525.59	USBR
04/15/2016	12.62	7525.63	USBR
05/15/2016	12.60	7525.65	USBR
06/15/2016	12.71	7525.54	USBR
07/15/2016	12.99	7525.26	USBR
08/15/2016	13.27	7524.98	USBR
09/15/2016	13.20	7525.05	USBR
10/15/2016	13.04	7525.21	USBR
11/15/2016	12.93	7525.32	USBR
12/15/2016	12.82	7525.43	USBR
01/15/2017	12.55	7525.70	USBR
02/15/2017	12.53	7525.72	USBR
03/15/2017	12.53	7525.72	USBR
04/15/2017	12.50	7525.75	USBR
05/15/2017	12.40	7525.85	USBR
06/15/2017	12.50	7525.75	USBR
07/15/2017	12.55	7525.70	USBR
08/15/2017	12.63	7525.62	USBR
09/15/2017	12.82	7525.43	USBR
10/15/2017	12.68	7525.57	USBR
11/15/2017	12.90	7525.35	USBR
12/15/2017	12.72	7525.53	USBR
01/15/2018	12.72	7525.53	USBR
02/15/2018	12.63	7525.62	USBR
03/15/2018	12.58	7525.67	USBR
04/15/2018	12.56	7525.69	USBR
05/15/2018	12.61	7525.64	USBR
06/15/2018	12.74	7525.51	USBR
07/15/2018	13.23	7525.02	USBR
08/15/2018	13.67	7524.58	USBR
09/15/2018	13.58	7524.67	USBR
10/15/2018	13.38	7524.87	USBR
11/15/2018	13.23	7525.02	USBR
12/15/2018	13.02	7525.23	USBR
01/15/2019	12.94	7525.31	USBR
02/15/2019	12.90	7525.35	USBR
03/15/2019	12.94	7525.31	USBR
04/15/2019	13.01	7525.24	USBR
05/15/2019	12.96	7525.29	USBR
06/15/2019	13.08	7525.17	USBR
07/15/2019	13.41	7524.84	USBR
08/15/2019	13.61	7524.64	USBR
09/15/2019	13.62	7524.63	USBR
10/15/2019	13.54	7524.71	USBR
11/15/2019	13.50	7524.75	USBR
12/15/2019	13.28	7524.97	USBR
01/15/2020	13.11	7525.14	USBR
02/15/2020	13.09	7525.16	USBR
03/15/2020	13.11	7525.14	USBR
04/15/2020	13.15	7525.10	USBR
05/15/2020	13.18	7525.07	USBR
06/15/2020	13.37	7524.88	USBR
07/15/2020	13.76	7524.49	USBR
08/15/2020	13.88	7524.37	USBR
09/15/2020	13.76	7524.49	USBR
10/15/2020	13.57	7524.68	USBR
11/15/2020	13.38	7524.87	USBR
12/15/2020	13.22	7525.03	USBR
01/15/2021	13.27	7524.98	USBR
02/15/2021	13.17	7525.08	USBR
03/15/2021	13.19	7525.06	USBR
04/15/2021	13.30	7524.95	USBR
05/15/2021	13.40	7524.85	USBR
06/15/2021	13.55	7524.70	USBR
07/15/2021	13.81	7524.44	USBR
08/15/2021	13.92	7524.33	USBR
09/15/2021	14.02	7524.23	USBR
10/15/2021	13.94	7524.31	USBR
11/15/2021	13.78	7524.47	USBR
12/15/2021	13.72	7524.53	USBR
01/15/2022	13.73	7524.52	USBR
02/15/2022	13.59	7524.66	USBR
03/15/2022	13.55	7524.70	USBR
04/15/2022	13.45	7524.80	USBR
05/15/2022	13.71	7524.54	USBR
06/15/2022	13.82	7524.43	USBR
07/15/2022	14.18	7524.07	USBR
08/15/2022	14.31	7523.94	USBR
09/15/2022	14.17	7524.08	USBR
10/15/2022	14.04	7524.21	USBR
11/15/2022	13.98	7524.27	USBR
12/15/2022	13.94	7524.31	USBR
01/15/2023	13.92	7524.33	USBR
02/15/2023	13.72	7524.53	USBR
03/15/2023	13.75	7524.50	USBR
04/15/2023	13.65	7524.60	USBR
05/15/2023	13.79	7524.46	USBR
06/15/2023	13.88	7524.37	USBR
07/14/2023	14.34	7523.91	USBR
08/15/2023	14.67	7523.58	USBR
09/13/2023	14.15	7524.10	USBR
10/15/2023	14.15	7524.10	USBR
11/15/2023	14.15	7524.10	USBR
12/15/2023	14.10	7524.15	USBR
01/15/2024	14.00	7524.25	USBR
02/15/2024	14.00	7524.25	USBR
03/22/2024	13.95	7524.30	USBR
04/15/2024	14.02	7524.23	USBR
05/15/2024	14.04	7524.21	USBR
06/15/2024	14.09	7524.16	USBR
07/15/2024	14.18	7524.07	USBR
08/15/2024	14.28	7523.97	USBR
09/15/2024	14.37	7523.88	USBR

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Well NA04201027DAD2 EW-52C (EW52C)Confined

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Water-level Data

2019 to Present

1967 to Present

Well NA04201027DAD2 EW-52C (EW52C)
Confined