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IN THIS SECTION:
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About the Edwards Aquifer
Advanced Statistics Search
Water Statistics Book
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The Edwards Aquifer
The Edwards Aquifer is an intensely faulted and fractured carbonate limestone
formation that lies within the Balcones fault zone. Learn
more about the Edwards Aquifer.
Official Aquifer Level & Statistics
Official Edwards level (J-17 Bexar index well) is updated on this page between 9:30 a.m. and
noon Monday through Friday. For more information, visit the Edwards Aquifer
Authority Web site at www.edwardsaquifer.org,
or call (210) 222-2204.
Advanced Statistics Search
Now you can query our database for aquifer levels and other stats dating
back to 1885. Click here
to begin.
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30 Day Aquifer Stats Summary
|
|
Date
|
Total Pumpage
(mg)*
|
Precip |
High Temp |
Level Bexar
(J-17) |
Level Medina |
Level Uvalde |
Springflow Comal
(cfs)** |
Springflow
San Marcos
(cfs)** |
|
2/5
|
|
0.00"
|
|
678.4'
|
|
|
|
|
|
2/4
|
154.9
|
0.33"
|
51°
|
677.3'
|
714.8'
|
862.8'
|
|
|
|
2/3
|
156.2
|
2.11"
|
51°
|
676.3'
|
714.2'
|
862.8'
|
|
|
|
2/2
|
151.9
|
0.16"
|
53°
|
675.8'
|
713.5'
|
862.6'
|
339.0
|
210.0
|
|
2/1
|
162.9
|
0.03"
|
46°
|
675.6'
|
713.4'
|
862.6'
|
339.0
|
210.0
|
|
1/31
|
153.2
|
0.00"
|
37°
|
675.8'
|
713.3'
|
862.6'
|
340.0
|
209.0
|
|
1/30
|
145.9
|
0.00"
|
53°
|
675.7'
|
713.2'
|
862.6'
|
345.0
|
210.0
|
|
1/29
|
147.0
|
0.57"
|
66°
|
675.3'
|
713.1'
|
862.6'
|
345.0
|
209.0
|
|
1/28
|
157.0
|
0.30"
|
69°
|
675.1'
|
713.2'
|
862.6'
|
338.0
|
209.0
|
|
1/27
|
166.4
|
0.00"
|
69°
|
675.2'
|
713.0'
|
862.5'
|
336.0
|
208.0
|
|
1/26
|
158.1
|
0.00"
|
71°
|
675.3'
|
712.9'
|
862.5'
|
336.0
|
207.0
|
|
1/25
|
150.6
|
0.00"
|
70°
|
675.6'
|
713.1'
|
862.5'
|
337.0
|
207.0
|
|
1/24
|
153.3
|
0.00"
|
67°
|
676.0'
|
713.2'
|
862.5'
|
337.0
|
207.0
|
|
1/23
|
150.2
|
0.00"
|
74°
|
676.3'
|
713.3'
|
862.5'
|
336.0
|
207.0
|
|
1/22
|
144.2
|
0.00"
|
74°
|
676.1'
|
713.1'
|
862.5'
|
337.0
|
207.0
|
|
1/21
|
134.3
|
0.00"
|
78°
|
676.0'
|
712.6'
|
862.4'
|
337.0
|
205.0
|
|
1/20
|
128.5
|
0.00"
|
71°
|
675.7'
|
712.5'
|
862.4'
|
337.0
|
206.0
|
|
1/19
|
152.4
|
0.00"
|
70°
|
674.3'
|
711.6'
|
862.4'
|
340.0
|
204.0
|
|
1/18
|
174.9
|
0.00"
|
71°
|
674.1'
|
711.3'
|
862.4'
|
345.0
|
203.0
|
|
1/17
|
168.8
|
0.00"
|
63°
|
673.6'
|
710.7'
|
862.4'
|
337.0
|
201.0
|
|
1/16
|
165.8
|
0.00"
|
62°
|
672.6'
|
709.8'
|
862.4'
|
330.0
|
196.0
|
|
1/15
|
157.2
|
1.81"
|
56°
|
671.0'
|
708.4'
|
862.3'
|
323.0
|
191.0
|
|
1/14
|
160.8
|
1.49"
|
60°
|
668.3'
|
707.6'
|
862.3'
|
314.0
|
183.0
|
|
1/13
|
163.5
|
0.28"
|
54°
|
667.8'
|
707.2'
|
862.2'
|
309.0
|
181.0
|
|
1/12
|
155.8
|
0.00"
|
66°
|
667.8'
|
707.3'
|
862.2'
|
309.0
|
180.0
|
|
1/11
|
164.9
|
0.00"
|
56°
|
668.0'
|
707.4'
|
862.2'
|
309.0
|
180.0
|
|
1/10
|
176.7
|
0.00"
|
49°
|
668.2'
|
707.5'
|
862.2'
|
310.0
|
180.0
|
|
1/9
|
184.7
|
0.00"
|
44°
|
668.9'
|
707.8'
|
862.2'
|
311.0
|
180.0
|
|
1/8
|
166.6
|
0.00"
|
34°
|
668.9'
|
707.7'
|
862.2'
|
311.0
|
180.0
|
|
1/7
|
170.0
|
0.00"
|
54°
|
669.4'
|
708.3'
|
862.3'
|
312.0
|
180.0
|
|
*
|
mg
|
=
|
million gallons
|
|
†
|
mgd
|
=
|
million gallons per day
|
|
**
|
cfs
|
=
|
cubic feet per second
|
Level Bexar (J-17) - 1 Year Summary
February 6, 2009 - February 5, 2010
|
|
| 2010 Statistics
Summary |
| Pumpage
to Date: |
5,551.82 mg |
| Average
Daily Pumpage: |
154.22 mg |
| Rainfall
to Date: |
7.08" |
| Normal
Year to Date: |
2.22" |
| Departure
from Normal: |
4.86" |
Minimum
Comal Springflow:
(1/11/10) |
309 cfs |
Maximum
Comal Springflow:
(1/18/10) |
345 cfs |
Minimum
Edwards Level:
(1/13/10) |
667.8' |
Maximum
Edwards Level:
(2/5/10) |
678.4' |
| Historic |
Minimum Edwards Level
(08/17/56) |
612.5' |
Maximum Edwards Level
(06/14/92) |
703.3' |
DISCLAIMER
The daily pumpage summary is provisional un-audited raw data. SAWS reserves the right to make retroactive changes as system and operational situations are discovered and resolved. If you are interested in official data please contact SAWS Production department. Official data is available by the end of January for the prior year. For example, January 31, 2011 is the earliest official data for the 2010 year is available.
This information maintained by Elliott Fry, 210-233-3657, efry@saws.org.
To request official data, please contact Anastasia Valdes at 210-233-3788.
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