USGS Nebraska Water Science Center

High Plains Water-Level Monitoring Study

Summary Statistics from Past USGS Reports 1987 to 2019

Available Summary Statistics

Area-weighted average water-level change:

Number of observation wells measured for water-level comparison periods

Number of observation wells measured for the annual or biannual water-level comparison periods, 1987 to 2019

Click on years in the "Time period" column to view reference.

Time period	State
Time period	Colorado	Kansas	Nebraska	New Mexico	Oklahoma	South Dakota	Texas	Wyoming	High Plains
1987-88	546	1,389	3,010	287	417	83	434	37	6,203
1988-89	578	1,259	3,231	258	382	81	370	42	6,201
1989-90	603	1,470	3,338	244	343	78	1,868	44	7,988
1990-91	619	1,690	3,305	245	253	77	2,459	39	8,687
1991-92	599	1,386	3,097	260	246	58	2,493	51	8,190
1992-93	600	1,334	3,039	271	226	58	2,474	51	8,053
1993-94	594	1,378	2,897	224	212	55	2,221	49	7,630
1994-95	571	1,112	2,831	211	225	53	2,218	45	7,266
1995-96	562	1,002	2,664	157	296	103	2,608	75	7,467
1996-97	579	889	3,401	104	256	100	2,364	62	7,755
1997-98	575	1,157	3,370	94	245	105	2,212	50	7,808
1998-99	554	1,223	3,484	20	196	111	2,217	42	7,847
1999-00	531	1,163	3,275	18	175	93	2,098	50	7,403
2000-01	527	1,153	3,537	89	167	94	2,028	55	7,650
2001-02	531	1,269	3,489	93	220	113	2,230	53	7,998
2002-03	455	1,313	3,506	107	263	111	2,404	49	8,208
2003-04	441	1,211	3,486	81	138	110	2,497	44	8,008
2004-05	483	1,181	3,986	66	141	124	2,719	51	8,751
2005-06	455	1,025	3,704	56	141	87	2,585	48	8,101
2006-07	453	1,681	3,725	69	110	102	2,481	56	8,677
2007-08	456	1,386	3,829	37	111	110	2,410	55	8,394
2008-09	343	1,661	3,761	38	131	104	2,383	53	8,474
2009-11	291	1,313	3,132	33	125	101	2,330	51	7,376
2011-13	411	1,253	3,099	30	133	98	2,424	12	7,460
2013-15	411	1,315	3,223	71	131	98	2,269	6	7,524
2015-17	318	1,461	3,363	33	144	96	2,245	38	7,698
2017-19	308	1,289	3,091	67	81	58	2,263	38	7,195