USGS Surface Water for California: Streamflow Measurements

USGS Home
Contact USGS
Search USGS

National Water Information System: Web Interface

USGS Water Resources

Data Category:
Geographic Area:

Warning: Javascript must be enabled to use all the features on this page!

Page Loading - Please Wait...

Click to hideNews Bulletins

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

Streamflow Measurements for California

Click to hide state-specific text

Streamflow measurement pages will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline and new pages.

USGS 372409122244101 PURISIMA C NR LOBITOS CA

San Mateo County, California

Hydrologic Unit Code 18050006

Latitude 37°24'09", Longitude 122°24'41" NAD27

Drainage area 8.35 square miles

**Output formats**
HTML table with channel data
HTML table without channel data
Tab-separated data with channel data
Tab-separated data without channel data
Graph of data
Reselect output format

Output formats

HTML table with channel data

HTML table without channel data

Tab-separated data with channel data

Tab-separated data without channel data

Graph of data

Reselect output format

Meas. Number	Date Time	Time Datum	Measurement Used?	Who	Measuring Agency	Stream flow (ft³/s)	GH Change (ft)	Meas. Duration (hr)	Meas. Rated	Control	Flow Adjust. Code
54	1993-03-18 10:20	PST	Yes	CTP	USGS	7.57	0.00	0.70	Good	DebrisModerate	NONE
53	1993-02-23 09:45	PST	Yes	CTP	USGS	28.5	0.02	0.80	Good	DebrisModerate	NONE
52	1993-01-20 11:30	PST	Yes	CTP	USGS	46.0	0.00	0.70	Fair	DebrisModerate	NONE
51	1992-12-15 12:00	PST	Yes	CTP	USGS	1.83	0.00	0.60	Fair	DebrisHeavy	NONE
50	1992-11-19 13:50	PST	Yes	CTP	USGS	0.64	0.00	0.40	Fair	DebrisModerate	NONE
49	1992-10-14 16:30	PDT	Yes	CTP	USGS	0.23	0.00	0.40	Excellent	DebrisModerate	NONE
48	1992-08-27 11:10	PDT	Yes	CTP	USGS	0.39	0.00	0.30	Excellent	DebrisHeavy	NONE
47	1992-07-14 12:25	PDT	Yes	CTP	USGS	0.54	0.00	0.50	Fair	DebrisModerate	NONE
46	1992-06-02 11:20	PDT	Yes	CTP	USGS	1.07	0.00	0.50	Fair	DebrisHeavy	NONE
45	1992-04-15 13:20	PDT	Yes	CTP	USGS	1.52	0.00	0.60	Poor	Clear	NONE
44	1992-03-11 09:40	PST	Yes	CTP	USGS	7.21	0.00	0.60	Fair	Clear	NONE
43	1992-01-15 13:00	PST	Yes	CTP	USGS	1.24	0.00	0.70	Fair	Clear	NONE
42	1991-12-12 11:20	PST	Yes	CTP	USGS	0.51	0.00		Fair	DebrisLight	NONE
41	1991-11-13 11:20	PST	Yes	CTP	USGS	0.56	0.00	0.70	Good	DebrisLight	NONE
40	1991-10-08 11:07	PDT	Yes	CTP	USGS	0.32	0.00	0.60	Fair	DebrisLight	NONE
39	1991-08-27 10:40	PDT	Yes	CTP	USGS	0.44	0.00	0.70	Fair	Clear	NONE
38	1991-07-16 10:30	PDT	Yes	CTP	USGS	0.69	0.00	0.60	Fair	Clear	NONE
37	1991-05-15 12:15	PDT	Yes	CTP	USGS	0.96	0.00	0.80	Fair	Clear	NONE
36	1991-04-17 10:20	PDT	Yes	CTP	USGS	2.15	0.00	0.70	Fair	Clear	NONE
35	1991-02-14 10:50	PST	Yes	WWA	USGS	0.84	0.00	0.40	Fair	Clear	NONE
34	1991-01-17 12:30	PST	Yes	WWA	USGS	0.73	0.00	0.40	Fair	Clear	NONE
33	1990-12-19 13:30	PST	Yes	WWA	USGS	0.92	0.00	0.40	Fair	Clear	NONE
32	1990-11-21 10:55	PST	Yes	WWA	USGS	0.72	0.00	0.40	Good	Clear	NONE
31	1990-10-10 16:30	PDT	Yes	WWA	USGS	0.34	0.00	0.30	Fair	Clear	NONE
30	1990-08-15 12:40	PDT	Yes	WWA	USGS	1.00	0.00	0.20	Fair	Clear	NONE
29	1990-06-13 18:00	PDT	Yes	WWA	USGS	1.62	0.00	0.40	Fair	Clear	NONE
28	1990-04-26 15:15	PDT	Yes	WWA	USGS	2.45	0.00		Fair	Clear	NONE
27	1990-03-22 13:20	PST	Yes	KLM	USGS	2.58	0.00	0.50	Fair		NONE
26	1990-02-01 14:45	PST	Yes	JJG/KLM	USGS	3.35	0.00	0.50	Fair		NONE
25	1989-12-20 14:00	PST	Yes	KLM	USGS	3.09	0.00	0.50	Good		NONE
24	1989-11-15 14:20	PST	Yes	ERH	USGS	5.02	0.00	0.80	Good		NONE
23	1989-10-12 15:50	PDT	Yes	ERH	USGS	0.53	0.00	0.30	Fair	Clear	NONE
22	1989-09-05 14:50	PDT	Yes	ERH	USGS	0.51	0.00	0.40	Fair		NONE
21	1989-07-26 11:00	PDT	Yes	WJH	USGS	0.66	0.00	0.40	Fair		NONE
20	1989-06-07 12:45	PDT	Yes	WJH	USGS	1.01	0.00	0.40	Good		NONE
19	1989-04-11 14:30	PDT	Yes	CTP	USGS	5.05	0.00	0.60	Fair		NONE
18	1989-03-23 11:50	PST	Yes	CTP	USGS	13.3	0.00	0.50	Fair		NONE
17	1989-02-16 13:35	PST	Yes	CTP	USGS	2.63	0.00	0.40	Good	Clear	NONE
16	1989-01-18 10:23	PST	Yes	CTP	USGS	2.34	0.00	0.40	Good	Clear	NONE
15	1988-12-15 12:29	PST	Yes	CTP	USGS	0.39	0.00	0.20	Fair	Clear	NONE
14	1988-11-09 10:40	PST	Yes	CTP	USGS	0.43	0.00	0.20	Good	Clear	NONE
13	1988-10-19 13:40	PDT	Yes	CTP	USGS	0.29	0.00	0.20	Fair	Clear	NONE
12	1988-09-19 12:15	PDT	Yes	CTP	USGS	0.04	0.00	0.20	Fair		NONE
11	1988-08-15 12:20	PDT	Yes	CTP	USGS	0.50	0.00	0.20	Fair	Clear	NONE
10	1988-07-19 12:40	PDT	Yes	CTP	USGS	0.44	0.00	0.50	Fair	Clear	NONE
9	1988-06-08 12:15	PDT	Yes	CTP	USGS	0.56	0.00	0.30	Fair	Clear	NONE
8	1988-05-10 12:11	PDT	Yes	CTP	USGS	0.75	0.00	0.20	Good	Clear	NONE
7	1988-04-12 11:48	PDT	Yes	CTP	USGS	0.62	0.00	0.40	Fair		NONE
6	1988-03-25 13:50	PST	Yes	CTP	USGS	1.03	0.00	0.30	Fair	Clear	NONE
5	1988-02-16 10:25	PST	Yes	WWA/ERH	USGS	1.27	0.00	0.30	Fair	Clear	NONE
4	1988-01-05 15:30	PST	Yes	WWA	USGS	6.34	0.00	0.40	Fair	Clear	NONE
3	1987-12-08 13:40	PST	Yes	WWA	USGS	9.04	0.00	0.40	Fair	Clear	NONE
2	1987-11-05 15:40	PST	Yes	WWA	USGS	0.59	0.00	0.20	Fair		NONE
1	1987-10-06 13:30	PDT	Yes	WWA	USGS	0.25	0.00	0.20	Fair		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

1993-03-18 10:20

PST

Yes

CTP

USGS

7.57

0.00

0.70

Good

DebrisModerate

NONE

1993-02-23 09:45

PST

Yes

CTP

USGS

28.5

0.02

0.80

Good

DebrisModerate

NONE

1993-01-20 11:30

PST

Yes

CTP

USGS

46.0

0.00

0.70

Fair

DebrisModerate

NONE

1992-12-15 12:00

PST

Yes

CTP

USGS

1.83

0.00

0.60

Fair

DebrisHeavy

NONE

1992-11-19 13:50

PST

Yes

CTP

USGS

0.64

0.00

0.40

Fair

DebrisModerate

NONE

1992-10-14 16:30

PDT

Yes

CTP

USGS

0.23

0.00

0.40

Excellent

DebrisModerate

NONE

1992-08-27 11:10

PDT

Yes

CTP

USGS

0.39

0.00

0.30

Excellent

DebrisHeavy

NONE

1992-07-14 12:25

PDT

Yes

CTP

USGS

0.54

0.00

0.50

Fair

DebrisModerate

NONE

1992-06-02 11:20

PDT

Yes

CTP

USGS

1.07

0.00

0.50

Fair

DebrisHeavy

NONE

1992-04-15 13:20

PDT

Yes

CTP

USGS

1.52

0.00

0.60

Poor

Clear

NONE

1992-03-11 09:40

PST

Yes

CTP

USGS

7.21

0.00

0.60

Fair

Clear

NONE

1992-01-15 13:00

PST

Yes

CTP

USGS

1.24

0.00

0.70

Fair

Clear

NONE

1991-12-12 11:20

PST

Yes

CTP

USGS

0.51

0.00

Fair

DebrisLight

NONE

1991-11-13 11:20

PST

Yes

CTP

USGS

0.56

0.00

0.70

Good

DebrisLight

NONE

1991-10-08 11:07

PDT

Yes

CTP

USGS

0.32

0.00

0.60

Fair

DebrisLight

NONE

1991-08-27 10:40

PDT

Yes

CTP

USGS

0.44

0.00

0.70

Fair

Clear

NONE

1991-07-16 10:30

PDT

Yes

CTP

USGS

0.69

0.00

0.60

Fair

Clear

NONE

1991-05-15 12:15

PDT

Yes

CTP

USGS

0.96

0.00

0.80

Fair

Clear

NONE

1991-04-17 10:20

PDT

Yes

CTP

USGS

2.15

0.00

0.70

Fair

Clear

NONE

1991-02-14 10:50

PST

Yes

WWA

USGS

0.84

0.00

0.40

Fair

Clear

NONE

1991-01-17 12:30

PST

Yes

WWA

USGS

0.73

0.00

0.40

Fair

Clear

NONE

1990-12-19 13:30

PST

Yes

WWA

USGS

0.92

0.00

0.40

Fair

Clear

NONE

1990-11-21 10:55

PST

Yes

WWA

USGS

0.72

0.00

0.40

Good

Clear

NONE

1990-10-10 16:30

PDT

Yes

WWA

USGS

0.34

0.00

0.30

Fair

Clear

NONE

1990-08-15 12:40

PDT

Yes

WWA

USGS

1.00

0.00

0.20

Fair

Clear

NONE

1990-06-13 18:00

PDT

Yes

WWA

USGS

1.62

0.00

0.40

Fair

Clear

NONE

1990-04-26 15:15

PDT

Yes

WWA

USGS

2.45

0.00

Fair

Clear

NONE

1990-03-22 13:20

PST

Yes

KLM

USGS

2.58

0.00

0.50

Fair

NONE

1990-02-01 14:45

PST

Yes

JJG/KLM

USGS

3.35

0.00

0.50

Fair

NONE

1989-12-20 14:00

PST

Yes

KLM

USGS

3.09

0.00

0.50

Good

NONE

1989-11-15 14:20

PST

Yes

ERH

USGS

5.02

0.00

0.80

Good

NONE

1989-10-12 15:50

PDT

Yes

ERH

USGS

0.53

0.00

0.30

Fair

Clear

NONE

1989-09-05 14:50

PDT

Yes

ERH

USGS

0.51

0.00

0.40

Fair

NONE

1989-07-26 11:00

PDT

Yes

WJH

USGS

0.66

0.00

0.40

Fair

NONE

1989-06-07 12:45

PDT

Yes

WJH

USGS

1.01

0.00

0.40

Good

NONE

1989-04-11 14:30

PDT

Yes

CTP

USGS

5.05

0.00

0.60

Fair

NONE

1989-03-23 11:50

PST

Yes

CTP

USGS

13.3

0.00

0.50

Fair

NONE

1989-02-16 13:35

PST

Yes

CTP

USGS

2.63

0.00

0.40

Good

Clear

NONE

1989-01-18 10:23

PST

Yes

CTP

USGS

2.34

0.00

0.40

Good

Clear

NONE

1988-12-15 12:29

PST

Yes

CTP

USGS

0.39

0.00

0.20

Fair

Clear

NONE

1988-11-09 10:40

PST

Yes

CTP

USGS

0.43

0.00

0.20

Good

Clear

NONE

1988-10-19 13:40

PDT

Yes

CTP

USGS

0.29

0.00

0.20

Fair

Clear

NONE

1988-09-19 12:15

PDT

Yes

CTP

USGS

0.04

0.00

0.20

Fair

NONE

1988-08-15 12:20

PDT

Yes

CTP

USGS

0.50

0.00

0.20

Fair

Clear

NONE

1988-07-19 12:40

PDT

Yes

CTP

USGS

0.44

0.00

0.50

Fair

Clear

NONE

1988-06-08 12:15

PDT

Yes

CTP

USGS

0.56

0.00

0.30

Fair

Clear

NONE

1988-05-10 12:11

PDT

Yes

CTP

USGS

0.75

0.00

0.20

Good

Clear

NONE

1988-04-12 11:48

PDT

Yes

CTP

USGS

0.62

0.00

0.40

Fair

NONE

1988-03-25 13:50

PST

Yes

CTP

USGS

1.03

0.00

0.30

Fair

Clear

NONE

1988-02-16 10:25

PST

Yes

WWA/ERH

USGS

1.27

0.00

0.30

Fair

Clear

NONE

1988-01-05 15:30

PST

Yes

WWA

USGS

6.34

0.00

0.40

Fair

Clear

NONE

1987-12-08 13:40

PST

Yes

WWA

USGS

9.04

0.00

0.40

Fair

Clear

NONE

1987-11-05 15:40

PST

Yes

WWA

USGS

0.59

0.00

0.20

Fair

NONE

1987-10-06 13:30

PDT

Yes

WWA

USGS

0.25

0.00

0.20

Fair

NONE

Questions or Comments
Help

Data Tips
Explanation of terms
Subscribe for system changes

Accessibility FOIA Privacy Policies and Notices

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

Page Contact Information: California Water Data Support Team
Page Last Modified: 2026-01-22 17:00:31 EST
0.28 0.27 caww02