2018 Recharge-Report
Table 2. Estimated Annual Enhanced Recharge from Edwards Aquifer Authority-Operated Recharge Structures for 2018 (measured in acre-feet).
Parker (April 1974)
Middle Verde (April 1978)
San Geronimo (November 1979)
Seco (October 1982)
Year 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Annual Total
160 620
--- --- --- ---
--- --- --- --- ---
--- --- --- --- --- --- --- ---
160 620
2,018
2,018
6
6
98
150 1,725 371 1,923 112 254 246 440 889 4,141
248 4,040 1,274 4,102 206 254 640 2,412 3,649 20,336
2,315
0
0
903 1,407
772
3 0
91
0 0
0 0
251 232 217
143 643
1,097 963 1,176
1,580 12,915
2,104
0 0
0 0
0 0
0 0
0 0
49
176 966
41
479 2,160 14,631
745 5,420 21,003
647 723
1,647 2,874 334
2,775
0
0 0
508
842 164
159
0
5
18
79
51
880
1,028
0
0
0
0
0
2,941 a 1,469 a/b
2,154 b 1,160 b 1,371 b 657 b/d 1,511 0 b
1,579 b 872 b
7,515 b 3,796b 4,606 b 2,154 b/d 18,872 50 c
14,189 b 7,297 b 50 b/c 7,901 b 4,422 b/d 26,544 1,314 21,993
0 b
0 b
901 b 526 b 1,811 665 2,363 795
1,023 b 1,085 b/d 4,350
184 170
0
465
4,778
14,682
0 0
0 0
58
853
0
0
0
5,998
2,091
7,268
10,645
26,002
2.6 630 10 1.0 0.6 759 419
2.5 31 4.5 51
0
0
5
0.1
28
688
1,356
1,324
4,375
6,171
13,226
1.0
0
16
0 0 0
98 0.4 319
150 1.0
0
38.0 816 747
1,116 7,079 8,799
1,163 1,776
4,682 4,018
2,257
35
0
0
0
0
756
1,333
4,056
5,838
11,983
Data source: Unpublished Edwards Aquifer Authority files (2014). a = Written communication from USGS, San Antonio Subdistrict Office. b = Determined by linear-regression analysis using rainfall data and historical recharge data. c = Linear-regression analysis indicates zero recharge; however, one recharge event was observed that was estimated to have recharged 50 acre-feet. d = Part of 2001 recharge estimate provided by HDR Engineering, Inc. (unpublished report). --- = Years prior to construction of recharge structure.
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