USGS Surface Water for USA: Streamflow Measurements

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Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.

Streamflow Measurements for the Nation

USGS 01479678 Unn Trib to WB Red Clay Cr at Kennett Square, PA

Chester County, Pennsylvania

Hydrologic Unit Code 02040205

Latitude 39°50'56", Longitude 75°43'41" NAD27

Drainage area .07 square miles

Gage datum 315 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
41	2002-01-10 12:35	EST	Yes	LEO	USGS	0.40	0.53			Poor	Clear	unkn
40	2001-12-06 13:15	EST	Yes	leo/ks	USGS	0.02	0.33	0.00	1.00	Good	Clear	unkn
39	2001-11-08 08:30	EST	Yes	leo	USGS	0.02	0.33	0.00	2.00	Good	Clear	unkn
38	2001-10-18 14:20	EDT	Yes	leo	USGS	0.04	0.35	0.00	1.00	Fair	DebrisModerate	unkn
37	2001-08-30 13:50	EDT	Yes	LEO	USGS	0.02	0.31	0.00	1.00	Good	Clear	unkn
36	2001-07-17 10:00	EDT	Yes	leo	USGS	0.02	0.32	0.00	3.00	Good	DebrisHeavy	unkn
35	2001-06-28 09:00	EDT	Yes	leo	USGS	0.03	0.34	0.00	3.00	Unspecified	Clear	unkn
34	2001-06-04 14:00	EDT	Yes	leo	USGS	0.02	0.33	0.00	1.00	Good	Clear	unkn
33	2001-05-03 14:20	EDT	Yes	leo	USGS	0.03	0.34	0.01	1.00	Good	VegetationLight	unkn
32	2001-03-29 09:30	EST	Yes	leo	USGS	0.04	0.35	-0.01	2.50	Unspecified	DebrisLight	unkn
31	2001-03-15 08:30	EST	Yes	leo	USGS	0.04	0.36	0.00	7.00	Unspecified	Clear	unkn
30	2001-03-14 10:20	EST	Yes	leo	USGS	0.05	0.37	0.01	8.00	Unspecified	Clear	unkn
29	2001-02-28 09:40	EST	Yes	leo	USGS	0.04	0.36	0.00	1.00	Unspecified	Clear	unkn
28	2001-01-23 10:00	EST	Yes	leo/ajr	USGS	0.04	0.36	0.00	0.50	Fair	Clear	unkn
27	2000-12-13 14:00	EST	Yes	leo	USGS	0.03	0.32	0.00	0.50	Good	DebrisModerate	unkn
26	2000-11-20 -- --	--	Yes	LEO	USGS	0.04	0.34	0.02	3.00	Good	Clear	unkn
25	2000-11-16 -- --	--	Yes	leo	USGS	0.04	0.34	0.00	1.30	Fair	DebrisLight	unkn
24	2000-10-24 09:00	EDT	Yes	leo	USGS	0.04	0.35	0.02	1.50	Fair	DebrisModerate	unkn
23	2000-09-21 12:25	EDT	Yes	leo	USGS	0.04	0.35	-0.01	1.00	Good	DebrisLight	unkn
22	2000-08-31 09:20	EDT	Yes	leo	USGS	0.07	0.40	0.00	2.00	Good	Clear	unkn
21	2000-07-31 09:30	EDT	Yes	leo	USGS	0.08	0.39	0.00	1.00	Good	Clear	unkn
20	2000-06-28 08:25	EDT	Yes	leo	USGS	0.07	0.38	0.00	4.00	Good	Clear	unkn
19	2000-06-15 10:00	EDT	Yes	LEO/KSH	USGS	0.07	0.38	0.00	0.50	Good	Clear	unkn
18	2000-05-17 08:40	EDT	Yes	LEO/KSH	USGS	0.11	0.40	0.00	3.00	Fair	Clear	unkn
17	2000-04-03 13:10	EDT	Yes	LEO	USGS	0.07	0.40	0.00	2.00	Good	Clear	unkn
16	2000-03-08 13:20	EST	Yes	leo	USGS	0.03	0.35	0.00	1.00	Unspecified	Clear	unkn
15	2000-02-02 15:00	EST	Yes	leo	USGS	0.03	0.35	0.00		Fair	IceCover	unkn
14	2000-01-03 14:30	EST	Yes	cls/leo	USGS	0.05	0.37	0.00		Fair	DebrisLight	unkn
13	1999-12-10 09:30	EST	Yes	cls	USGS	0.04	0.36	0.00		Fair		unkn
12	1999-11-09 14:00	EST	Yes	cls	USGS	0.02	0.33	0.00		Fair	DebrisLight	unkn
11	1999-10-28 13:35	EDT	Yes	keg	USGS	0.03	0.32	0.00		Fair		unkn
10	1999-10-05 14:05	EDT	Yes	cls/leo	USGS	0.06	0.39	0.00		Fair	Clear	unkn
9	1999-10-01 15:00	EDT	Yes	cls/keg	USGS	0.02	0.32	0.00		Fair		unkn
8	1999-09-16 13:53	EDT	Yes	lar	USGS	22.2	1.74	-0.01	0.30	Fair		unkn
7	1999-06-30 12:30	EDT	Yes	cls	USGS	0.01	0.26	0.00		Fair	DebrisModerate	unkn
6	1999-05-27 14:50	EDT	Yes	cls/cls	USGS	0.01	0.24	0.00		Fair		unkn
5	1999-05-03 13:45	EDT	Yes	cls/keG	USGS	0.01	0.24	0.00		Fair	Clear	unkn
4	1999-04-28 -- --	--	Yes	cls/hld	USGS	0.02	0.27	0.00		Fair	Clear	unkn
3	1998-10-05 11:00	EDT	Yes	cls/crl	USGS	0.01	0.21	0.00		Fair	DebrisLight	unkn
2	1998-09-10 09:10	EDT	Yes	cls/hld	USGS	0.00	0.19	0.00		Fair	DebrisLight	unkn
1	1998-09-02 13:30	EDT	Yes	cls/dat	USGS	0.01	0.21	0.00		Fair		unkn

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

2002-01-10 12:35

EST

Yes

LEO

USGS

0.40

0.53

Poor

Clear

unkn

2001-12-06 13:15

EST

Yes

leo/ks

USGS

0.02

0.33

0.00

1.00

Good

Clear

unkn

2001-11-08 08:30

EST

Yes

leo

USGS

0.02

0.33

0.00

2.00

Good

Clear

unkn

2001-10-18 14:20

EDT

Yes

leo

USGS

0.04

0.35

0.00

1.00

Fair

DebrisModerate

unkn

2001-08-30 13:50

EDT

Yes

LEO

USGS

0.02

0.31

0.00

1.00

Good

Clear

unkn

2001-07-17 10:00

EDT

Yes

leo

USGS

0.02

0.32

0.00

3.00

Good

DebrisHeavy

unkn

2001-06-28 09:00

EDT

Yes

leo

USGS

0.03

0.34

0.00

3.00

Unspecified

Clear

unkn

2001-06-04 14:00

EDT

Yes

leo

USGS

0.02

0.33

0.00

1.00

Good

Clear

unkn

2001-05-03 14:20

EDT

Yes

leo

USGS

0.03

0.34

0.01

1.00

Good

VegetationLight

unkn

2001-03-29 09:30

EST

Yes

leo

USGS

0.04

0.35

-0.01

2.50

Unspecified

DebrisLight

unkn

2001-03-15 08:30

EST

Yes

leo

USGS

0.04

0.36

0.00

7.00

Unspecified

Clear

unkn

2001-03-14 10:20

EST

Yes

leo

USGS

0.05

0.37

0.01

8.00

Unspecified

Clear

unkn

2001-02-28 09:40

EST

Yes

leo

USGS

0.04

0.36

0.00

1.00

Unspecified

Clear

unkn

2001-01-23 10:00

EST

Yes

leo/ajr

USGS

0.04

0.36

0.00

0.50

Fair

Clear

unkn

2000-12-13 14:00

EST

Yes

leo

USGS

0.03

0.32

0.00

0.50

Good

DebrisModerate

unkn

2000-11-20 -- --

Yes

LEO

USGS

0.04

0.34

0.02

3.00

Good

Clear

unkn

2000-11-16 -- --

Yes

leo

USGS

0.04

0.34

0.00

1.30

Fair

DebrisLight

unkn

2000-10-24 09:00

EDT

Yes

leo

USGS

0.04

0.35

0.02

1.50

Fair

DebrisModerate

unkn

2000-09-21 12:25

EDT

Yes

leo

USGS

0.04

0.35

-0.01

1.00

Good

DebrisLight

unkn

2000-08-31 09:20

EDT

Yes

leo

USGS

0.07

0.40

0.00

2.00

Good

Clear

unkn

2000-07-31 09:30

EDT

Yes

leo

USGS

0.08

0.39

0.00

1.00

Good

Clear

unkn

2000-06-28 08:25

EDT

Yes

leo

USGS

0.07

0.38

0.00

4.00

Good

Clear

unkn

2000-06-15 10:00

EDT

Yes

LEO/KSH

USGS

0.07

0.38

0.00

0.50

Good

Clear

unkn

2000-05-17 08:40

EDT

Yes

LEO/KSH

USGS

0.11

0.40

0.00

3.00

Fair

Clear

unkn

2000-04-03 13:10

EDT

Yes

LEO

USGS

0.07

0.40

0.00

2.00

Good

Clear

unkn

2000-03-08 13:20

EST

Yes

leo

USGS

0.03

0.35

0.00

1.00

Unspecified

Clear

unkn

2000-02-02 15:00

EST

Yes

leo

USGS

0.03

0.35

0.00

Fair

IceCover

unkn

2000-01-03 14:30

EST

Yes

cls/leo

USGS

0.05

0.37

0.00

Fair

DebrisLight

unkn

1999-12-10 09:30

EST

Yes

cls

USGS

0.04

0.36

0.00

Fair

unkn

1999-11-09 14:00

EST

Yes

cls

USGS

0.02

0.33

0.00

Fair

DebrisLight

unkn

1999-10-28 13:35

EDT

Yes

keg

USGS

0.03

0.32

0.00

Fair

unkn

1999-10-05 14:05

EDT

Yes

cls/leo

USGS

0.06

0.39

0.00

Fair

Clear

unkn

1999-10-01 15:00

EDT

Yes

cls/keg

USGS

0.02

0.32

0.00

Fair

unkn

1999-09-16 13:53

EDT

Yes

lar

USGS

22.2

1.74

-0.01

0.30

Fair

unkn

1999-06-30 12:30

EDT

Yes

cls

USGS

0.01

0.26

0.00

Fair

DebrisModerate

unkn

1999-05-27 14:50

EDT

Yes

cls/cls

USGS

0.01

0.24

0.00

Fair

unkn

1999-05-03 13:45

EDT

Yes

cls/keG

USGS

0.01

0.24

0.00

Fair

Clear

unkn

1999-04-28 -- --

Yes

cls/hld

USGS

0.02

0.27

0.00

Fair

Clear

unkn

1998-10-05 11:00

EDT

Yes

cls/crl

USGS

0.01

0.21

0.00

Fair

DebrisLight

unkn

1998-09-10 09:10

EDT

Yes

cls/hld

USGS

0.00

0.19

0.00

Fair

DebrisLight

unkn

1998-09-02 13:30

EDT

Yes

cls/dat

USGS

0.01

0.21

0.00

Fair

unkn

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

Page Contact Information: Pennsylvania Water Data Support Team
Page Last Modified: 2025-02-26 12:57:49 EST
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