PLATTE RIVER BASIN

06751490 NORTH FORK CACHE LA POUDRE RIVER AT LIVERMORE, CO

LOCATION.--Lat 40°47'15", long 105°15'06", in SW14SE14 sec.32, T.10 N., R.70 W., Larimer County, Hydrologic Unit 10190007, on left bank 30 ft downstream from bridge on Colorado State Highway 200, 2.0 mi west of Livermore, and 2.9 mi downstream from Stonewall Creek.

DRAINAGE AREA.--539 mi2.

PERIOD OF RECORD.--October 1986 to current year. May 1929 to September 1931, May 1947 to September 1965 (published as "near Livermore", station 06751500); records are not considered equivalent. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=06751490

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 5,715 ft above NGVD of 1929, from topographic map.

REMARKS.--Records good except for estimated daily discharges, which are poor. Natural flow affected by transbasin diversions, storage reservoirs, and irrigation. Several measurements of specific conductance and water temperature were obtained and are published in the "Supplemental Water-Quality Data for Gaging Stations" section of this report.

Discharge, cubic feet per second 

WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

DAILY MEAN VALUES

DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP
1	11	5.6	5.5	3.6	4.1	e4.2	e99	243	433	119	5.3	5.2
2	8.9	4.8	5.4	3.6	4.5	e4.3	136	209	399	108	5.4	3.4
3	6.9	3.9	5.1	e3.7	4.4	e4.4	147	174	368	95	4.6	3.2
4	5.6	3.4	5.1	e4.0	e4.3	e4.6	133	145	358	86	4.7	5.6
5	4.8	3.0	5.3	e5.0	e4.3	e4.8	114	132	374	74	4.0	5.2
6	4.5	2.8	5.3	e6.0	e4.4	e5.2	101	113	327	63	4.2	5.3
7	4.8	2.5	5.2	6.6	e4.4	7.6	87	101	308	31	5.4	6.9
8	4.6	2.5	5.1	6.0	e4.6	6.3	76	103	281	23	5.9	7.0
9	4.7	3.2	5.1	5.6	e4.7	5.6	79	102	220	13	5.6	6.7
10	4.8	3.6	5.1	4.3	e4.8	5.5	97	164	183	8.7	5.2	6.4
11	4.4	3.5	4.6	4.3	e4.4	6.0	115	181	187	7.3	4.8	6.3
12	4.1	3.4	4.3	4.3	e4.4	5.9	139	251	189	6.5	4.9	7.0
13	4.2	3.4	4.1	4.7	4.4	5.8	166	327	186	6.3	4.4	9.7
14	4.3	3.6	4.3	5.0	4.2	5.5	194	309	183	7.7	4.2	9.9
15	4.3	3.4	4.2	4.8	4.4	4.8	161	300	163	7.1	3.8	9.9
16	4.4	3.6	3.8	4.8	4.6	4.7	176	309	137	7.3	4.6	6.3
17	4.5	3.4	3.3	5.1	e4.4	8.3	155	344	123	4.9	4.7	5.3
18	4.6	4.0	3.3	5.0	4.3	12	140	369	152	5.6	5.7	6.2
19	4.6	4.5	3.2	5.0	4.3	16	122	350	185	5.6	5.9	6.1
20	4.8	4.4	3.3	4.8	4.2	9.6	112	313	190	6.0	4.8	5.8
21	4.9	4.5	3.4	4.8	4.3	11	101	286	196	4.9	4.6	5.7
22	5.0	4.4	3.4	4.7	4.4	11	96	265	174	3.9	5.1	5.6
23	5.3	4.3	3.4	4.8	e4.3	14	114	260	184	5.2	4.6	5.7
24	5.6	4.6	3.4	5.3	e4.2	38	166	266	191	5.5	5.1	5.5
25	5.4	4.7	3.4	5.3	e4.0	44	187	276	168	6.0	5.9	6.0
26	5.8	4.6	3.4	4.7	e4.0	82	209	276	154	6.2	6.2	5.4
27	5.1	4.9	3.4	4.4	e4.3	120	232	265	164	6.0	5.0	5.7
28	4.6	5.2	3.4	4.1	e4.1	86	286	272	142	6.0	4.1	6.4
29	5.5	5.6	3.4	3.7	---	65	283	338	132	6.1	3.9	6.9
30	5.7	5.0	3.6	3.7	---	58	272	415	126	6.0	6.4	6.9
31	5.6	---	3.6	3.8	---	e71	---	452	---	5.6	5.8	---
TOTAL	163.3	120.3	128.4	145.5	121.7	731.1	4,495	7,910	6,577	746.4	154.8	187.2
MEAN	5.27	4.01	4.14	4.69	4.35	23.6	150	255	219	24.1	4.99	6.24
MAX	11	5.6	5.5	6.6	4.8	120	286	452	433	119	6.4	9.9
MIN	4.1	2.5	3.2	3.6	4.0	4.2	76	101	123	3.9	3.8	3.2
AC-FT	324	239	255	289	241	1,450	8,920	15,690	13,050	1,480	307	371
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1987 - 2003, BY WATER YEAR (WY)
MEAN	11.6	15.7	11.0	13.0	16.1	20.2	65.8	179	192	26.8	15.9	9.57
MAX	41.0	98.8	34.3	46.2	48.2	55.5	244	904	857	133	52.5	23.6
(WY)	(1998)	(1998)	(1998)	(1999)	(1996)	(1990)	(1990)	(1999)	(1995)	(1995)	(1991)	(1997)
MIN	4.85	4.01	3.58	3.60	4.35	6.35	4.57	5.66	4.97	2.16	2.45	3.92
(WY)	(1989)	(2003)	(1988)	(1988)	(2003)	(1995)	(1995)	(2002)	(2002)	(2002)	(2002)	(2001)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1987 - 2003
ANNUAL TOTAL	1,971.1	21,480.7
ANNUAL MEAN	5.40	58.9	48.0
HIGHEST ANNUAL MEAN			141 1999
LOWEST ANNUAL MEAN			6.24 2002
HIGHEST DAILY MEAN	21 Sep 2	452 May 31	2,760 May 1, 1999
LOWEST DAILY MEAN	1.3 Jul 20	2.5 Nov 7	a1.3 Jul 20, 2002
ANNUAL SEVEN-DAY MINIMUM	1.6 Jul 14	3.0 Nov 4	1.6 Jul 14, 2002
MAXIMUM PEAK FLOW		480 May 31	5,430 Jun 1, 1991
MAXIMUM PEAK STAGE		9.71 May 31	17.53 Jun 1, 1991
ANNUAL RUNOFF (AC-FT)	3,910	42,610	34,780
10 PERCENT EXCEEDS	8.1	201	102
50 PERCENT EXCEEDS	5.1	5.5	10
90 PERCENT EXCEEDS	2.3	3.8	4.7

e Estimated. a Also occurred Sep 5, 2002.