Well NA04201029CDB3 EW-45C-2 (EW45C2) Confined
Co-located Well(s): NA04201029CDB1 EW-45U (EW45U) NA04201029CDB2 EW-45C-1 (EW45C1)

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Well Information Table
Common Well ID	NA04201029CDB3 EW-45C-2
USBR Well ID	EW45C2
USGS Well ID	375118105474003
GSDNP Well Name	375118105474003
USGS Station Name	NA04201029CDB3 EW-45C-2
USGS Construction Date	06/09/1994
USGS Site Type	Well
USGS Site Use Information	Observation
USGS Groundwater Use Information	Unknown
Data Source(s)	USGS, USBR
Location Data
TRS	NA04201029CDB3 EW-45C-2
USBR TRS	NA04201029CDB3
USGS TRS 1	NA04201029CDB3 EW-45C-2
Longitude/Latitude (NAD83)	-105.79529824 , 37.85465574
Longitude/Latitude Data Source	USBOR EW well locations
USGS Longitude/Latitude (NAD83)	-105.7950167 , 37.85499940
USBR Longitude/Latitude (NAD27)	-105.794725972814 , 37.8546563139126
Easting, Northing RGDSS-NAD83 (US ft)	165021.92 , 312635.86
USGS County	Saguache County
Elevation and Depth Data
Ground Elevation (ft NAVD88)	7545.32000000000
Elevation Data Source	USBOR EW well database
USBR Ground Elevation (ft NGVD29)	7541.3
USGS Ground Elevation (ft NGVD29)	7540.30
1/3-Arc Second NED Ground Elevation (ft NAVD88)	7543.98
1-Arc Second NED Ground Elevation (ft NAVD88)	7544.42
SRTM Ground Elevation (ft NAVD88)	7545.75
Total Depth (ft)	225.00
USBR Total Depth (ft)	225
USGS Well Depth (ft)	209.00
Model Layer	2
Model Layer Source	Well Depth
Depth of Bottom of Layer 1	113
Depth of Bottom of Layer 2	348
Depth of Bottom of Layer 3	1685
Depth of Bottom of Layer 4	4437
Additional Well Information	Construction
Aquifer Information
Aquifer Type	Confined
Aquifer Type Source	EW_AQFR
USGS Aquifer Type	Confined Single Aquifer
USGS Hydrologic Unit	San Luis
USGS Data Available	Water-level (GW.LEV)
Water-level Database Information
Water-level Count	411
Water-level Date Range	03/20/1996 thru 12/21/2023
Monitored within the last 18 months	Yes, most recently on 12/21/2023
Depth-to-Water Range (ft)	-0.19 to 2.97
Water Table Elevation Range (ft NAVD88)	7542.35 to 7545.51
Water-Level-Source:Number-of-Measurements	USGS:139 USBR:342

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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)
03/20/1996	0.31	7545.01	USGS,USBR
04/23/1996	0.29	7545.03	USGS
04/23/1996	0.24	7545.08	USBR
05/29/1996	0.37	7544.95	USGS
05/29/1996	0.32	7545.00	USBR
06/25/1996	0.30	7545.02	USBR
06/25/1996	0.35	7544.97	USGS
07/30/1996	-0.19	7545.51	USBR
07/30/1996	-0.14	7545.46	USGS
08/28/1996	0.03	7545.29	USGS
08/28/1996	-0.02	7545.34	USBR
09/24/1996	0.15	7545.17	USGS
09/24/1996	0.10	7545.22	USBR
10/30/1996	0.68	7544.64	USGS
10/30/1996	0.63	7544.69	USBR
12/05/1996	1.33	7543.99	USBR
12/05/1996	1.38	7543.94	USGS
01/09/1997	0.96	7544.36	USGS
01/09/1997	0.91	7544.41	USBR
02/04/1997	1.57	7543.75	USBR
02/04/1997	1.62	7543.70	USGS
03/06/1997	1.74	7543.58	USGS
03/06/1997	1.69	7543.63	USBR
04/02/1997	1.63	7543.69	USGS
04/02/1997	1.58	7543.74	USBR
04/29/1997	1.65	7543.67	USBR
04/29/1997	1.70	7543.62	USGS
05/28/1997	1.64	7543.68	USBR
05/28/1997	1.69	7543.63	USGS
06/24/1997	1.60	7543.72	USGS
06/24/1997	1.55	7543.77	USBR
07/30/1997	1.85	7543.47	USGS
07/30/1997	1.80	7543.52	USBR
08/27/1997	1.99	7543.33	USGS
08/27/1997	1.94	7543.38	USBR
09/23/1997	2.03	7543.29	USGS
09/23/1997	1.98	7543.34	USBR
10/29/1997	1.95	7543.37	USGS
10/29/1997	1.90	7543.42	USBR
12/04/1997	1.78	7543.54	USGS
12/04/1997	1.83	7543.49	USBR
01/14/1998	1.86	7543.46	USGS
01/14/1998	1.81	7543.51	USBR
02/10/1998	1.83	7543.49	USBR
02/10/1998	1.88	7543.44	USGS
03/12/1998	1.88	7543.44	USGS
03/12/1998	1.83	7543.49	USBR
04/07/1998	1.46	7543.86	USBR
04/07/1998	1.51	7543.81	USGS
05/06/1998	1.34	7543.98	USGS
05/06/1998	1.29	7544.03	USBR
06/02/1998	1.19	7544.13	USGS
06/02/1998	1.14	7544.18	USBR
06/30/1998	1.25	7544.07	USGS
06/30/1998	1.20	7544.12	USBR
07/28/1998	1.30	7544.02	USGS
07/29/1998	1.25	7544.07	USBR
09/03/1998	1.40	7543.92	USGS
09/03/1998	1.35	7543.97	USBR
10/07/1998	1.68	7543.64	USBR
10/07/1998	1.73	7543.59	USGS
11/03/1998	1.61	7543.71	USGS
11/03/1998	1.56	7543.76	USBR
12/08/1998	1.58	7543.74	USBR
12/08/1998	1.63	7543.69	USGS
01/13/1999	1.63	7543.69	USGS
01/13/1999	1.58	7543.74	USBR
02/09/1999	1.61	7543.71	USGS
02/09/1999	1.56	7543.76	USBR
03/09/1999	1.52	7543.80	USGS
03/09/1999	1.47	7543.85	USBR
04/07/1999	1.43	7543.89	USBR
04/07/1999	1.48	7543.84	USGS
05/05/1999	1.31	7544.01	USGS
05/05/1999	1.26	7544.06	USBR
06/02/1999	1.18	7544.14	USGS
06/02/1999	1.13	7544.19	USBR
07/01/1999	0.93	7544.39	USBR
07/01/1999	0.98	7544.34	USGS
07/26/1999	1.06	7544.26	USGS
07/26/1999	1.01	7544.31	USBR
08/26/1999	0.74	7544.58	USGS,USBR
09/20/1999	0.94	7544.38	USBR
09/20/1999	0.99	7544.33	USGS
10/27/1999	0.98	7544.34	USBR
10/27/1999	1.03	7544.29	USGS
11/29/1999	1.12	7544.20	USGS
11/29/1999	1.07	7544.25	USBR
12/21/1999	0.96	7544.36	USGS,USBR
01/04/2000	1.13	7544.19	USBR
01/04/2000	1.18	7544.14	USGS
02/03/2000	1.17	7544.15	USGS
02/03/2000	1.12	7544.20	USBR
03/01/2000	1.11	7544.21	USBR
03/01/2000	1.16	7544.16	USGS
03/28/2000	0.94	7544.38	USBR
03/28/2000	0.99	7544.33	USGS
04/24/2000	0.86	7544.46	USBR
04/24/2000	0.91	7544.41	USGS
05/23/2000	0.92	7544.40	USGS
05/23/2000	0.87	7544.45	USBR
06/20/2000	1.13	7544.19	USGS,USBR
07/18/2000	1.45	7543.87	USGS
07/18/2000	1.13	7544.19	USBR
08/08/2000	1.36	7543.96	USGS,USBR
08/17/2000	1.46	7543.86	USGS
08/17/2000	1.58	7543.74	USBR
09/19/2000	1.50	7543.82	USBR
09/19/2000	1.58	7543.74	USGS
10/25/2000	1.50	7543.82	USGS,USBR
12/05/2000	1.21	7544.11	USGS,USBR
01/09/2001	1.13	7544.19	USGS,USBR
02/07/2001	1.18	7544.14	USGS,USBR
02/20/2001	1.23	7544.09	USGS,USBR
03/01/2001	1.16	7544.16	USGS,USBR
04/04/2001	0.97	7544.35	USGS,USBR
05/01/2001	0.93	7544.39	USGS,USBR
05/30/2001	0.51	7544.81	USGS,USBR
06/26/2001	0.44	7544.88	USGS,USBR
07/24/2001	0.78	7544.54	USGS,USBR
08/21/2001	1.03	7544.29	USGS,USBR
09/19/2001	1.16	7544.16	USGS,USBR
10/23/2001	1.20	7544.12	USGS,USBR
12/06/2001	1.14	7544.18	USGS,USBR
01/15/2002	1.05	7544.27	USGS,USBR
02/15/2002	1.06	7544.26	USGS,USBR
03/20/2002	0.99	7544.33	USGS,USBR
04/19/2002	0.79	7544.53	USGS,USBR
05/14/2002	0.84	7544.48	USGS,USBR
06/18/2002	0.84	7544.48	USGS,USBR
07/19/2002	1.21	7544.11	USGS,USBR
08/13/2002	1.59	7543.73	USGS,USBR
09/11/2002	1.82	7543.50	USGS,USBR
10/10/2002	1.88	7543.44	USGS,USBR
11/13/2002	1.70	7543.62	USGS,USBR
12/18/2002	1.38	7543.94	USGS,USBR
01/23/2003	1.33	7543.99	USGS,USBR
02/20/2003	1.40	7543.92	USGS,USBR
03/20/2003	1.31	7544.01	USGS,USBR
04/17/2003	1.30	7544.02	USGS,USBR
05/14/2003	1.25	7544.07	USGS,USBR
06/11/2003	0.85	7544.47	USGS,USBR
07/10/2003	0.84	7544.48	USGS,USBR
08/06/2003	1.19	7544.13	USGS,USBR
09/04/2003	1.30	7544.02	USGS,USBR
10/08/2003	1.05	7544.27	USBR
10/08/2003	1.06	7544.26	USGS
11/19/2003	0.91	7544.41	USGS,USBR
12/17/2003	0.96	7544.36	USGS,USBR
01/22/2004	0.81	7544.51	USGS,USBR
02/24/2004	0.71	7544.61	USGS,USBR
03/23/2004	0.58	7544.74	USGS,USBR
04/21/2004	0.66	7544.66	USGS,USBR
05/18/2004	0.51	7544.81	USGS,USBR
06/16/2004	0.49	7544.83	USGS,USBR
07/20/2004	0.89	7544.43	USGS,USBR
08/18/2004	0.94	7544.38	USGS,USBR
09/22/2004	1.50	7543.82	USGS,USBR
10/15/2004	1.24	7544.08	USGS,USBR
11/15/2004	1.34	7543.98	USGS,USBR
12/15/2004	1.46	7543.86	USGS,USBR
01/15/2005	1.40	7543.92	USGS
01/26/2005	1.45	7543.87	USGS,USBR
02/15/2005	1.43	7543.89	USGS,USBR
03/15/2005	1.25	7544.07	USGS,USBR
04/12/2005	1.18	7544.14	USGS,USBR
05/10/2005	1.05	7544.27	USGS,USBR
05/17/2005	1.02	7544.30	USGS
06/15/2005	0.82	7544.50	USGS,USBR
06/30/2005	0.85	7544.47	USGS
07/15/2005	1.05	7544.27	USGS,USBR
08/15/2005	1.82	7543.50	USGS
08/26/2005	1.77	7543.55	USGS,USBR
09/15/2005	1.76	7543.56	USGS,USBR
10/15/2005	1.90	7543.42	USGS
10/24/2005	1.86	7543.46	USGS,USBR
11/15/2005	1.71	7543.61	USGS,USBR
12/15/2005	1.58	7543.74	USGS,USBR
01/04/2006	1.58	7543.74	USGS,USBR
02/15/2006	1.38	7543.94	USBR
03/15/2006	1.33	7543.99	USBR
04/03/2006	1.32	7544.00	USGS,USBR
04/15/2006	1.27	7544.05	USBR
05/15/2006	1.68	7543.64	USBR
06/15/2006	1.91	7543.41	USBR
07/11/2006	2.10	7543.22	USGS,USBR
08/15/2006	2.17	7543.15	USBR
09/27/2006	2.22	7543.10	USBR
10/16/2006	1.94	7543.38	USBR
11/06/2006	1.78	7543.54	USBR
12/15/2006	1.62	7543.70	USBR
01/15/2007	1.54	7543.78	USBR
02/15/2007	1.30	7544.02	USBR
03/27/2007	1.16	7544.16	USBR
04/15/2007	1.18	7544.14	USBR
05/15/2007	1.31	7544.01	USBR
06/22/2007	0.85	7544.47	USBR
07/15/2007	1.07	7544.25	USBR
08/16/2007	1.48	7543.84	USBR
09/15/2007	2.01	7543.31	USBR
10/25/2007	2.15	7543.17	USBR
11/15/2007	1.81	7543.51	USBR
12/28/2007	1.48	7543.84	USBR
01/15/2008	1.45	7543.87	USBR
02/15/2008	1.52	7543.80	USBR
03/12/2008	1.50	7543.82	USBR
04/15/2008	1.20	7544.12	USBR
05/19/2008	1.22	7544.10	USBR
06/15/2008	1.10	7544.22	USBR
07/22/2008	1.24	7544.08	USBR
08/15/2008	1.52	7543.80	USBR
09/15/2008	1.22	7544.10	USBR
10/09/2008	1.44	7543.88	USBR
11/16/2008	0.87	7544.45	USBR
12/16/2008	0.66	7544.66	USBR
01/16/2009	0.82	7544.50	USBR
02/10/2009	1.10	7544.22	USBR
03/15/2009	1.10	7544.22	USBR
04/06/2009	1.02	7544.30	USBR
05/15/2009	0.65	7544.67	USBR
06/11/2009	0.25	7545.07	USBR
07/15/2009	0.39	7544.93	USBR
08/15/2009	0.75	7544.57	USBR
09/01/2009	1.23	7544.09	USBR
09/15/2009	1.42	7543.90	USBR
10/15/2009	1.55	7543.77	USBR
11/15/2009	1.16	7544.16	USBR
12/02/2009	1.26	7544.06	USBR
01/15/2010	1.41	7543.91	USBR
02/15/2010	1.35	7543.97	USBR
03/22/2010	1.08	7544.24	USBR
03/31/2010	0.99	7544.33	USBR
04/15/2010	0.94	7544.38	USBR
05/15/2010	0.89	7544.43	USBR
06/15/2010	0.78	7544.54	USBR
06/23/2010	0.84	7544.48	USBR
07/15/2010	1.19	7544.13	USBR
08/15/2010	1.69	7543.63	USBR
09/21/2010	2.09	7543.23	USBR
10/15/2010	2.15	7543.17	USBR
11/15/2010	1.87	7543.45	USBR
12/13/2010	1.87	7543.45	USBR
01/15/2011	1.88	7543.44	USBR
02/15/2011	1.80	7543.52	USBR
03/22/2011	1.81	7543.51	USBR
04/15/2011	1.75	7543.57	USBR
05/15/2011	1.75	7543.57	USBR
06/15/2011	1.80	7543.52	USBR
06/20/2011	1.81	7543.51	USBR
07/15/2011	2.03	7543.29	USBR
08/15/2011	2.34	7542.98	USBR
09/15/2011	2.56	7542.76	USBR
09/20/2011	2.60	7542.72	USBR
10/15/2011	2.61	7542.71	USBR
11/15/2011	2.45	7542.87	USBR
12/20/2011	2.28	7543.04	USBR
01/15/2012	2.25	7543.07	USBR
02/15/2012	2.19	7543.13	USBR
03/27/2012	2.02	7543.30	USBR
04/15/2012	1.87	7543.45	USBR
05/15/2012	1.91	7543.41	USBR
06/20/2012	2.10	7543.22	USBR
08/15/2012	2.54	7542.78	USBR
08/29/2012	2.73	7542.59	USBR
09/15/2012	2.79	7542.53	USBR
10/15/2012	2.76	7542.56	USBR
11/15/2012	2.52	7542.80	USBR
12/12/2012	2.62	7542.70	USBR
01/15/2013	2.20	7543.12	USBR
02/15/2013	2.53	7542.79	USBR
03/19/2013	2.53	7542.79	USBR
04/15/2013	2.41	7542.91	USBR
05/15/2013	2.14	7543.18	USBR
06/18/2013	1.87	7543.45	USBR
07/15/2013	2.13	7543.19	USBR
08/14/2013	2.33	7542.99	USBR
09/12/2013	2.44	7542.88	USBR
10/15/2013	2.23	7543.09	USBR
11/15/2013	2.14	7543.18	USBR
12/11/2013	2.16	7543.16	USBR
01/15/2014	2.09	7543.23	USBR
02/26/2014	1.95	7543.37	USBR
03/15/2014	1.82	7543.50	USBR
04/15/2014	1.66	7543.66	USBR
05/15/2014	1.60	7543.72	USBR
06/15/2014	1.49	7543.83	USBR
07/15/2014	1.68	7543.64	USBR
08/15/2014	1.78	7543.54	USBR
09/12/2014	1.99	7543.33	USBR
10/15/2014	2.32	7543.00	USBR
11/15/2014	2.14	7543.18	USBR
12/10/2014	2.08	7543.24	USBR
01/15/2015	2.08	7543.24	USBR
02/15/2015	1.94	7543.38	USBR
03/11/2015	1.87	7543.45	USBR
04/15/2015	1.74	7543.58	USBR
05/15/2015	1.41	7543.91	USBR
06/16/2015	0.93	7544.39	USBR
07/22/2015	0.23	7545.09	USBR
08/15/2015	0.58	7544.74	USBR
09/08/2015	0.95	7544.37	USBR
10/15/2015	1.33	7543.99	USBR
11/15/2015	1.30	7544.02	USBR
12/09/2015	1.32	7544.00	USBR
01/15/2016	1.26	7544.06	USBR
02/11/2016	1.37	7543.95	USGS
02/15/2016	1.32	7544.00	USBR
03/15/2016	1.43	7543.89	USBR
04/15/2016	0.94	7544.38	USBR
05/04/2016	0.90	7544.42	USGS
05/15/2016	0.86	7544.46	USBR
06/15/2016	0.58	7544.74	USBR
07/15/2016	0.42	7544.90	USBR
08/15/2016	1.08	7544.24	USBR
09/07/2016	1.44	7543.88	USGS
09/15/2016	1.61	7543.71	USBR
10/15/2016	1.58	7543.74	USBR
11/08/2016	1.54	7543.78	USGS
11/15/2016	1.56	7543.76	USBR
12/13/2016	1.45	7543.87	USBR
01/15/2017	1.31	7544.01	USBR
02/15/2017	1.12	7544.20	USBR
02/28/2017	1.00	7544.32	USGS
03/14/2017	1.62	7543.70	USBR
04/15/2017	1.06	7544.26	USBR
05/09/2017	0.99	7544.33	USGS
05/31/2017	0.87	7544.45	USBR
06/15/2017	0.69	7544.63	USBR
07/05/2017	0.89	7544.43	USBR
08/08/2017	1.00	7544.32	USGS
08/15/2017	1.11	7544.21	USBR
09/07/2017	1.29	7544.03	USBR
10/15/2017	1.31	7544.01	USBR
11/06/2017	1.44	7543.88	USGS
11/15/2017	0.92	7544.40	USBR
12/11/2017	1.39	7543.93	USBR
01/15/2018	0.86	7544.46	USBR
02/15/2018	0.72	7544.60	USBR
02/26/2018	0.73	7544.59	USGS
03/09/2018	0.68	7544.64	USBR
04/15/2018	0.50	7544.82	USBR
05/15/2018	0.51	7544.81	USBR
05/22/2018	0.48	7544.84	USGS
06/20/2018	0.69	7544.63	USBR
07/15/2018	1.37	7543.95	USBR
08/15/2018	2.08	7543.24	USBR
08/15/2018	2.12	7543.20	USGS
09/12/2018	2.38	7542.94	USBR
10/15/2018	1.99	7543.33	USBR
11/15/2018	1.84	7543.48	USBR
12/11/2018	1.70	7543.62	USBR
01/15/2019	1.51	7543.81	USBR
02/15/2019	1.41	7543.91	USBR
03/20/2019	1.81	7543.51	USBR
04/15/2019	1.44	7543.88	USBR
05/11/2019	1.19	7544.13	USBR
06/11/2019	1.03	7544.29	USBR
07/15/2019	0.56	7544.76	USBR
08/15/2019	0.68	7544.64	USBR
09/06/2019	1.34	7543.98	USBR
10/15/2019	1.93	7543.39	USBR
11/15/2019	1.83	7543.49	USBR
12/05/2019	1.79	7543.53	USBR
01/15/2020	1.59	7543.73	USBR
02/15/2020	1.54	7543.78	USBR
03/11/2020	1.99	7543.33	USBR
04/15/2020	1.64	7543.68	USBR
05/15/2020	1.41	7543.91	USBR
06/10/2020	1.38	7543.94	USBR
07/15/2020	1.64	7543.68	USBR
08/15/2020	1.95	7543.37	USBR
09/23/2020	2.11	7543.21	USBR
10/14/2020	2.10	7543.22	USBR
11/15/2020	1.95	7543.37	USBR
12/09/2020	1.87	7543.45	USBR
01/15/2021	1.83	7543.49	USBR
02/15/2021	1.70	7543.62	USBR
03/16/2021	1.96	7543.36	USBR
04/15/2021	1.79	7543.53	USBR
05/15/2021	1.52	7543.80	USBR
06/07/2021	1.35	7543.97	USBR
07/15/2021	1.49	7543.83	USBR
08/15/2021	1.75	7543.57	USBR
09/09/2021	2.28	7543.04	USBR
10/15/2021	2.47	7542.85	USBR
11/15/2021	2.21	7543.11	USBR
12/08/2021	2.17	7543.15	USBR
01/15/2022	1.85	7543.47	USBR
02/15/2022	1.58	7543.74	USBR
03/08/2022	1.65	7543.67	USBR
04/15/2022	1.48	7543.84	USBR
05/15/2022	1.86	7543.46	USBR
06/14/2022	1.83	7543.49	USBR
07/15/2022	2.30	7543.02	USBR
08/15/2022	2.51	7542.81	USBR
09/20/2022	2.51	7542.81	USBR
10/15/2022	2.40	7542.92	USBR
11/14/2022	2.55	7542.77	USBR
12/14/2022	2.71	7542.61	USBR
01/15/2023	2.34	7542.98	USBR
02/15/2023	2.12	7543.20	USBR
03/09/2023	2.18	7543.14	USBR
04/15/2023	2.11	7543.21	USBR
05/15/2023	2.10	7543.22	USBR
06/12/2023	2.16	7543.16	USBR
07/14/2023	1.95	7543.37	USBR
08/15/2023	2.32	7543.00	USBR
09/14/2023	2.91	7542.41	USBR
10/15/2023	2.97	7542.35	USBR
11/15/2023	2.41	7542.91	USBR
12/21/2023	2.13	7543.19	USBR

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Well NA04201029CDB3 EW-45C-2 (EW45C2)Confined

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Water-level Data

2019 to Present

1967 to Present

Well NA04201029CDB3 EW-45C-2 (EW45C2)
Confined