USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

USGS 08131190 S Concho Rv abv Gardner Dam nr San Angelo, TX

Tom Green County, Texas

Hydrologic Unit Code 12090102

Latitude 31°16'58", Longitude 100°30'27" NAD27

Drainage area 434 square miles

Contributing drainage area 434 square miles

Gage datum 1,926.70 feet above NGVD29

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Meas. Number	Date Time	Time Datum	Measurement Used?	Who	Measuring Agency	Stream flow (ft³/s)	Gage Height (ft)	Meas. Duration (hr)	Meas. Rated	Control	Flow Adjust. Code
40	2006-10-02 11:48	CDT	Yes	RLN	USGS	28.6	4.48	0.50	Fair	Clear	NONE
39	2006-06-08 12:35	CDT	Yes	JGB	USGS	18.6	3.94	0.60	Fair	Clear	NONE
38	2006-04-13 13:02	CDT	Yes	JGB/RLN	USGS	32.1	4.34	1.00	Fair	Unspecifed	NONE
37	2004-10-19 11:28	CDT	Yes	jgb	USGS	18.9	1.70	0.50	Poor	Clear	NONE
36	2004-08-10 11:00	CDT	Yes	jgb	USGS	10.3	1.52	0.70	Fair	Clear	NONE
35	2004-06-24 08:45	CDT	Yes	jgb	USGS	15.1	1.93	0.50	Fair		NONE
34	2004-06-14 15:21	CDT	Yes	jgb	USGS	7.91	5.26	0.40	Good	Clear	NONE
33	2004-04-30 14:54	CDT	Yes	RLN	USGS	20.4	5.62	0.60	Good	Clear	NONE
32	2004-03-16 13:40	CST	Yes	RLN	USGS	20.5	5.65	0.50	Good	Clear	NONE
31	2004-01-22 13:10	CST	Yes	RLN	USGS	18.1	5.55	0.50	Good	Clear	NONE
30	2003-12-03 14:00	CST	Yes	RLN	USGS	18.7	5.55	0.40	Fair	DebrisLight	NONE
29	2003-10-23 09:40	CDT	Yes	RLN	USGS	17.7	5.60	0.30	Good	Clear	NONE
28	2003-08-20 09:50	CDT	Yes	RLN	USGS	4.89	5.16	0.50	Good	Clear	NONE
27	2003-07-08 10:15	CDT	Yes	RLN	USGS	13.1	5.45	0.50	Fair	Clear	NONE
26	2003-05-15 11:10	CDT	Yes	JGP	USGS	8.12	5.29	0.30	Fair		NONE
25	2003-02-05 11:32	CST	Yes	JGB/RLN	USGS	17.4	3.31	0.90	Poor	Unspecifed	NONE
24	2002-12-11 13:10	CST	Yes	JGB	USGS	27.8	1.95	0.40	Fair	Clear	NONE
23	2002-10-01 09:00	CDT	Yes	HHG	USGS	2.57	2.11	0.30	Fair	DebrisLight	NONE
22	2002-09-03 11:20	CDT	Yes	HHG/CDC	USGS	1.00	2.00	0.40	Fair	DebrisLight	NONE
21	2002-08-05 14:05	CDT	Yes	HJJ/CDC	USGS	7.00	2.23	0.30	Fair	Clear	NONE
20	2002-06-03 15:55	CDT	Yes	HHG	USGS	3.25	2.92	0.50	Fair		NONE
19	2002-04-09 14:20	CDT	Yes	HHG	USGS	13.8	3.43	0.50	Fair	DebrisLight	NONE
18	2002-02-19 16:09	CST	Yes	HHG	USGS	15.2	3.57	0.40	Fair		NONE
17	2001-12-14 13:00	CST	Yes	HHG	USGS	19.8	3.58	0.50	Fair	Clear	NONE
16	2001-09-19 12:00	CDT	Yes	HHG/TET	USGS	16.2	3.84	0.60	Fair	Clear	NONE
15	1999-10-12 14:00	CDT	Yes	TET/JGP	USGS	10.7	1.00	0.30	Fair	Clear	NONE

Meas.
Number

Date Time

Time
Datum

Measurement
Used?

Who

Measuring
Agency

Stream
flow
(ft³/s)

Gage
Height
(ft)

GH
Change
(ft)

Meas.
Duration
(hr)

Meas.
Rated

Control

Flow
Adjust.
Code

2006-10-02 11:48

CDT

Yes

RLN

USGS

28.6

4.48

0.00

0.50

Fair

Clear

NONE

2006-06-08 12:35

CDT

Yes

JGB

USGS

18.6

3.94

0.00

0.60

Fair

Clear

NONE

2006-04-13 13:02

CDT

Yes

JGB/RLN

USGS

32.1

4.34

0.00

1.00

Fair

Unspecifed

NONE

2004-10-19 11:28

CDT

Yes

jgb

USGS

18.9

1.70

0.00

0.50

Poor

Clear

NONE

2004-08-10 11:00

CDT

Yes

jgb

USGS

10.3

1.52

0.00

0.70

Fair

Clear

NONE

2004-06-24 08:45

CDT

Yes

jgb

USGS

15.1

1.93

0.00

0.50

Fair

NONE

2004-06-14 15:21

CDT

Yes

jgb

USGS

7.91

5.26

0.00

0.40

Good

Clear

NONE

2004-04-30 14:54

CDT

Yes

RLN

USGS

20.4

5.62

0.00

0.60

Good

Clear

NONE

2004-03-16 13:40

CST

Yes

RLN

USGS

20.5

5.65

0.00

0.50

Good

Clear

NONE

2004-01-22 13:10

CST

Yes

RLN

USGS

18.1

5.55

0.00

0.50

Good

Clear

NONE

2003-12-03 14:00

CST

Yes

RLN

USGS

18.7

5.55

0.00

0.40

Fair

DebrisLight

NONE

2003-10-23 09:40

CDT

Yes

RLN

USGS

17.7

5.60

0.00

0.30

Good

Clear

NONE

2003-08-20 09:50

CDT

Yes

RLN

USGS

4.89

5.16

0.00

0.50

Good

Clear

NONE

2003-07-08 10:15

CDT

Yes

RLN

USGS

13.1

5.45

0.00

0.50

Fair

Clear

NONE

2003-05-15 11:10

CDT

Yes

JGP

USGS

8.12

5.29

0.00

0.30

Fair

NONE

2003-02-05 11:32

CST

Yes

JGB/RLN

USGS

17.4

3.31

0.00

0.90

Poor

Unspecifed

NONE

2002-12-11 13:10

CST

Yes

JGB

USGS

27.8

1.95

0.00

0.40

Fair

Clear

NONE

2002-10-01 09:00

CDT

Yes

HHG

USGS

2.57

2.11

0.00

0.30

Fair

DebrisLight

NONE

2002-09-03 11:20

CDT

Yes

HHG/CDC

USGS

1.00

2.00

0.00

0.40

Fair

DebrisLight

NONE

2002-08-05 14:05

CDT

Yes

HJJ/CDC

USGS

7.00

2.23

0.00

0.30

Fair

Clear

NONE

2002-06-03 15:55

CDT

Yes

HHG

USGS

3.25

2.92

0.00

0.50

Fair

NONE

2002-04-09 14:20

CDT

Yes

HHG

USGS

13.8

3.43

0.00

0.50

Fair

DebrisLight

NONE

2002-02-19 16:09

CST

Yes

HHG

USGS

15.2

3.57

0.00

0.40

Fair

NONE

2001-12-14 13:00

CST

Yes

HHG

USGS

19.8

3.58

0.00

0.50

Fair

Clear

NONE

2001-09-19 12:00

CDT

Yes

HHG/TET

USGS

16.2

3.84

0.00

0.60

Fair

Clear

NONE

1999-10-12 14:00

CDT

Yes

TET/JGP

USGS

10.7

1.00

0.00

0.30

Fair

Clear

NONE

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U.S. Department of the Interior | U.S. Geological Survey
Title: Surface Water for USA: Streamflow Measurements
URL: https://waterdata.usgs.gov/nwis/measurements?

Page Contact Information: Texas Water Data Support Team
Page Last Modified: 2025-11-10 16:45:04 EST
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