USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

USGS 11162720 COLMA C A SOUTH SAN FRANCISCO CA

San Mateo County, California

Hydrologic Unit Code 18050004

Latitude 37°39'14", Longitude 122°25'31" NAD27

Drainage area 10.8 square miles

Gage datum 12.53 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
291E	1994-03-15 14:30	PST	Yes	WLB/BD	USGS	0.74	1.24	0.00	0.30	Poor	DebrisLight	NONE
290E	1993-10-19 14:45	PDT	Yes	WLB	USGS	1.16	1.24			Poor	Clear	NONE
289	1993-09-02 13:30	PDT	Yes	WLB	USGS	2.69	1.28			Poor	VegetationLight	NONE
288	1993-07-09 10:30	PDT	Yes	WLB/KSW	USGS	2.98	1.30	0.00	0.30	Poor	VegetationLight	NONE
287	1992-08-06 13:35	PDT	Yes	KLM/KSW	USGS	1.98	1.25			Poor	VegetationLight	NONE
286	1992-02-06 11:45	PST	Yes	KLM	USGS	25.4	1.43			Poor		NONE
285	1991-12-12 15:55	PST	Yes	KLM	USGS	0.78	1.24			Poor	Clear	NONE
284	1991-11-07 10:40	PST	Yes	KLM	USGS	1.25	1.19	0.00	0.20	Unspecified		NONE
283	1991-10-22 14:30	PDT	Yes	KLM	USGS	3.00	1.29			Poor		NONE
282	1991-07-24 13:25	PDT	Yes	KLM	USGS	1.38	1.28	0.00	0.10	Poor	DebrisHeavy	NONE
281	1990-11-14 11:50	PST	Yes	KLM	USGS	3.39	1.28	-0.01	0.20	Poor	Clear	NONE
279	1990-01-03 13:20	PST	Yes	KLM/KLS	USGS	0.95	1.24	0.00	0.20	Fair	Clear	NONE
278	1989-09-26 -- --	--	Yes	KLM/KLS	USGS	1.14	1.22			Poor		NONE
277	1989-03-29 14:30	PST	Yes	KLM/KLS	USGS	5.09	1.30	0.00	0.20	Poor	DebrisLight	NONE
276	1989-01-10 13:00	PST	Yes	KLM/KLS	USGS	3.71	1.27	0.00	0.10	Poor	Clear	NONE
275	1988-12-06 14:50	PST	Yes	KLM/DMS	USGS	0.97	1.28			Fair		NONE
274	1988-10-11 15:55	PDT	Yes	KLM	USGS	1.12	1.26			Poor		NONE
273	1988-08-18 16:10	PDT	Yes	KLM/JJG	USGS	1.98	1.27			Poor	DebrisLight	NONE
272	1988-04-19 13:24	PDT	Yes	MDW	USGS	113	1.87	-0.02	0.10	Poor	Clear	NONE
271	1988-04-19 11:15	PDT	Yes	MDW	USGS	394	2.54	-0.04	0.30	Poor	Clear	NONE
270	1988-04-11 15:45	PDT	Yes	MDW	USGS	2.28	1.28	0.00	0.40	Poor	DebrisHeavy	NONE
269	1988-02-29 14:15	PST	Yes	MDW	USGS	10.9	1.36	-0.02	0.40	Poor	DebrisLight	NONE
268	1988-01-06 13:45	PST	Yes	MDW	USGS	5.73	1.28	0.00	0.40	Poor	Clear	NONE
267	1987-11-20 12:45	PST	Yes	MDW	USGS	15.8	1.39	0.04	0.40	Fair		NONE
266	1987-10-26 13:55	PST	Yes	MDW	USGS	1.38	1.33			Poor	Clear	NONE
265	1987-08-10 14:30	PDT	Yes	MDW	USGS	1.95	1.32	0.00	0.50	Poor	DebrisHeavy	NONE
264	1987-06-24 14:00	PDT	Yes	MDW	USGS	1.58	1.31	0.00	0.50	Poor	DebrisModerate	NONE
263	1987-05-18 14:00	PDT	Yes	MDW	USGS	1.45	1.27	0.00	0.40	Poor		NONE
262	1987-04-07 11:10	PDT	Yes	MDW	USGS	1.58	1.33	0.00	0.30	Poor	DebrisLight	NONE
261	1987-03-09 14:20	PST	Yes	MDW	USGS	2.13	1.29	0.00	0.50	Poor	DebrisModerate	NONE
260	1987-01-26 14:25	PST	Yes	MDW	USGS	1.85	1.25	0.00	0.30	Poor	DebrisLight	NONE
259	1986-12-08 12:30	PST	Yes	JCM/MDW	USGS	1.29	1.21	0.00	0.30	Fair		NONE
258	1986-10-21 14:55	PDT	Yes	MDW	USGS	2.08	1.28	0.00	0.40	Poor	DebrisModerate	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

291E

1994-03-15 14:30

PST

Yes

WLB/BD

USGS

0.74

1.24

0.00

0.30

Poor

DebrisLight

NONE

290E

1993-10-19 14:45

PDT

Yes

WLB

USGS

1.16

1.24

Poor

Clear

NONE

289

1993-09-02 13:30

PDT

Yes

WLB

USGS

2.69

1.28

Poor

VegetationLight

NONE

288

1993-07-09 10:30

PDT

Yes

WLB/KSW

USGS

2.98

1.30

0.00

0.30

Poor

VegetationLight

NONE

287

1992-08-06 13:35

PDT

Yes

KLM/KSW

USGS

1.98

1.25

Poor

VegetationLight

NONE

286

1992-02-06 11:45

PST

Yes

KLM

USGS

25.4

1.43

Poor

NONE

285

1991-12-12 15:55

PST

Yes

KLM

USGS

0.78

1.24

Poor

Clear

NONE

284

1991-11-07 10:40

PST

Yes

KLM

USGS

1.25

1.19

0.00

0.20

Unspecified

NONE

283

1991-10-22 14:30

PDT

Yes

KLM

USGS

3.00

1.29

Poor

NONE

282

1991-07-24 13:25

PDT

Yes

KLM

USGS

1.38

1.28

0.00

0.10

Poor

DebrisHeavy

NONE

281

1990-11-14 11:50

PST

Yes

KLM

USGS

3.39

1.28

-0.01

0.20

Poor

Clear

NONE

279

1990-01-03 13:20

PST

Yes

KLM/KLS

USGS

0.95

1.24

0.00

0.20

Fair

Clear

NONE

278

1989-09-26 -- --

Yes

KLM/KLS

USGS

1.14

1.22

Poor

NONE

277

1989-03-29 14:30

PST

Yes

KLM/KLS

USGS

5.09

1.30

0.00

0.20

Poor

DebrisLight

NONE

276

1989-01-10 13:00

PST

Yes

KLM/KLS

USGS

3.71

1.27

0.00

0.10

Poor

Clear

NONE

275

1988-12-06 14:50

PST

Yes

KLM/DMS

USGS

0.97

1.28

Fair

NONE

274

1988-10-11 15:55

PDT

Yes

KLM

USGS

1.12

1.26

Poor

NONE

273

1988-08-18 16:10

PDT

Yes

KLM/JJG

USGS

1.98

1.27

Poor

DebrisLight

NONE

272

1988-04-19 13:24

PDT

Yes

MDW

USGS

113

1.87

-0.02

0.10

Poor

Clear

NONE

271

1988-04-19 11:15

PDT

Yes

MDW

USGS

394

2.54

-0.04

0.30

Poor

Clear

NONE

270

1988-04-11 15:45

PDT

Yes

MDW

USGS

2.28

1.28

0.00

0.40

Poor

DebrisHeavy

NONE

269

1988-02-29 14:15

PST

Yes

MDW

USGS

10.9

1.36

-0.02

0.40

Poor

DebrisLight

NONE

268

1988-01-06 13:45

PST

Yes

MDW

USGS

5.73

1.28

0.00

0.40

Poor

Clear

NONE

267

1987-11-20 12:45

PST

Yes

MDW

USGS

15.8

1.39

0.04

0.40

Fair

NONE

266

1987-10-26 13:55

PST

Yes

MDW

USGS

1.38

1.33

Poor

Clear

NONE

265

1987-08-10 14:30

PDT

Yes

MDW

USGS

1.95

1.32

0.00

0.50

Poor

DebrisHeavy

NONE

264

1987-06-24 14:00

PDT

Yes

MDW

USGS

1.58

1.31

0.00

0.50

Poor

DebrisModerate

NONE

263

1987-05-18 14:00

PDT

Yes

MDW

USGS

1.45

1.27

0.00

0.40

Poor

NONE

262

1987-04-07 11:10

PDT

Yes

MDW

USGS

1.58

1.33

0.00

0.30

Poor

DebrisLight

NONE

261

1987-03-09 14:20

PST

Yes

MDW

USGS

2.13

1.29

0.00

0.50

Poor

DebrisModerate

NONE

260

1987-01-26 14:25

PST

Yes

MDW

USGS

1.85

1.25

0.00

0.30

Poor

DebrisLight

NONE

259

1986-12-08 12:30

PST

Yes

JCM/MDW

USGS

1.29

1.21

0.00

0.30

Fair

NONE

258

1986-10-21 14:55

PDT

Yes

MDW

USGS

2.08

1.28

0.00

0.40

Poor

DebrisModerate

NONE