USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

USGS 01589240 GWYNNS FALLS AT MCDONOGH, MD

Baltimore County, Maryland

Hydrologic Unit Code 02060003

Latitude 39°23'30.4", Longitude 76°45'54.8" NAD27

Drainage area 19.30 square miles

Gage datum 420 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)	GH Change (ft)	Meas. Duration (hr)	Meas. Rated	Control	Flow Adjust. Code
14	2009-05-12 13:34	EDT	Yes	CWR	USGS	16.4	2.18	0.00	0.50	Good	Unspecifed	NONE
13	2009-03-06 11:30:30	EST	Yes	CWR	USGS	12.1	2.10	0.00	0.40	Good	Clear	NONE
12	2009-01-09 10:55	EST	Yes	CWR/PEL	USGS	18.4	2.23	0.00	0.70	Good	Unspecifed	NONE
11	2009-01-09 10:51:30	EST	Yes	PEL/CWR	USGS	18.3	2.22	0.00	0.60	Good	Unspecifed	NONE
10	2008-12-08 13:28:30	EST	Yes	CWR/PEL	USGS	9.14	2.05	0.00	0.50	Fair	DebrisLight	NONE
9	2008-10-16 15:15	EDT	Yes	CWR	USGS	5.30	1.97	0.00	0.50	Poor	DebrisLight	NONE
8	2008-09-05 12:46	EDT	Yes	RHP/JAD	USGS	4.16	1.82	0.00	0.60	Good	Clear	NONE
7	2008-08-28 10:21	EDT	Yes	PCL	USGS	2.37	1.80	0.00	0.80	Poor	DebrisLight	NONE
6	2008-07-22 13:12	EDT	Yes	JAD	USGS	4.70	1.86	0.01	0.50	Good	Clear	NONE
5	2008-07-03 14:21	EDT	Yes	CWR/PC	USGS	6.34	1.90	-0.01	0.70	Poor	Clear	NONE
4	2008-06-26 11:57	EDT	Yes	RHP/JAD	USGS	7.05	1.94	0.00	0.50	Fair	Clear	NONE
3	2008-05-12 11:24	EDT	Yes	JJK/MCG	USGS	389	3.65	-0.08	0.50	Fair	Unspecifed	NONE
2C	1972-06-22 -- --	--	Yes	WBS/RHT	USGS	14700	18.80			Poor	Unspecifed	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

2009-05-12 13:34

EDT

Yes

CWR

USGS

16.4

2.18

0.00

0.50

Good

Unspecifed

NONE

2009-03-06 11:30:30

EST

Yes

CWR

USGS

12.1

2.10

0.00

0.40

Good

Clear

NONE

2009-01-09 10:55

EST

Yes

CWR/PEL

USGS

18.4

2.23

0.00

0.70

Good

Unspecifed

NONE

2009-01-09 10:51:30

EST

Yes

PEL/CWR

USGS

18.3

2.22

0.00

0.60

Good

Unspecifed

NONE

2008-12-08 13:28:30

EST

Yes

CWR/PEL

USGS

9.14

2.05

0.00

0.50

Fair

DebrisLight

NONE

2008-10-16 15:15

EDT

Yes

CWR

USGS

5.30

1.97

0.00

0.50

Poor

DebrisLight

NONE

2008-09-05 12:46

EDT

Yes

RHP/JAD

USGS

4.16

1.82

0.00

0.60

Good

Clear

NONE

2008-08-28 10:21

EDT

Yes

PCL

USGS

2.37

1.80

0.00

0.80

Poor

DebrisLight

NONE

2008-07-22 13:12

EDT

Yes

JAD

USGS

4.70

1.86

0.01

0.50

Good

Clear

NONE

2008-07-03 14:21

EDT

Yes

CWR/PC

USGS

6.34

1.90

-0.01

0.70

Poor

Clear

NONE

2008-06-26 11:57

EDT

Yes

RHP/JAD

USGS

7.05

1.94

0.00

0.50

Fair

Clear

NONE

2008-05-12 11:24

EDT

Yes

JJK/MCG

USGS

389

3.65

-0.08

0.50

Fair

Unspecifed

NONE

1972-06-22 -- --

Yes

WBS/RHT

USGS

14700

18.80

Poor

Unspecifed

NONE