ARKANSAS RIVER BASIN

07087050 ARKANSAS RIVER BELOW GRANITE, CO

LOCATION.--Lat 38°59'42", long 106°13'11", in SW14NW14 sec.22, T.12 S., R.79 W., Chaffee County, Hydrologic Unit 11020001, on right bank 500 ft east of U.S. Highway 24, 1.0 mi downstream from Pine Creek, and 4.8 mi southeast of Granite.

DRAINAGE AREA.--546 mi2.

PERIOD OF RECORD.--March 1999 to current year (seasonal records only). For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=07087050

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 8,620 ft above NGVD of 1929, from topographic map.

REMARKS.--Records good except for estimated daily discharges, which are poor. Natural flow of stream affected by storage reservoirs, power developments, transmountain diversions (see elsewhere in this report), diversions for irrigation and municipal use, ground-water withdrawals, return flows from irrigated areas, and flows from sewage-treatment plants. 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.

EXTREMES FOR PERIOD OF RECORD (seasonal only).--Maximum discharge, 3,280 ft3/s, May 31, 2000, gage height, 8.06 ft; minimum daily, 101 ft3/s, Sept. 15, 22-23, 2002.

EXTREMES FOR CURRENT YEAR (seasonal only).--Maximum discharge, 3,230 ft3/s, June 1-2, gage height, 8.01 ft; minimum daily, 125 ft3/s (estimated), Apr. 1.

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	---	---	---	---	---	---	e125	224	3,150	819	631	240
2	---	---	---	---	---	---	168	240	3,020	776	616	254
3	---	---	---	---	---	---	191	235	2,640	733	606	220
4	---	---	---	---	---	---	176	234	2,140	707	581	209
5	---	---	---	---	---	---	168	238	1,830	692	513	203
6	---	---	---	---	---	---	168	240	1,550	646	560	226
7	---	---	---	---	---	---	173	236	1,210	671	581	263
8	---	---	---	---	---	---	176	236	1,040	697	435	267
9	---	---	---	---	---	---	177	236	1,100	682	661	286
10	---	---	---	---	---	---	195	236	1,360	675	656	361
11	---	---	---	---	---	---	218	231	1,510	668	581	379
12	---	---	---	---	---	---	221	228	1,670	643	453	374
13	---	---	---	---	---	---	219	244	1,890	675	313	357
14	---	---	---	---	---	---	237	279	1,760	686	257	348
15	---	---	---	---	---	---	226	351	1,680	691	201	304
16	---	---	---	---	---	---	189	384	1,870	688	187	217
17	---	---	---	---	---	---	198	404	1,620	698	202	223
18	---	---	---	---	---	---	195	578	1,410	713	218	304
19	---	---	---	---	---	---	190	840	1,340	706	229	291
20	---	---	---	---	---	---	185	718	1,530	700	207	287
21	---	---	---	---	---	---	196	597	1,480	708	197	285
22	---	---	---	---	---	---	245	663	1,500	693	195	271
23	---	---	---	---	---	---	236	889	1,410	687	207	224
24	---	---	---	---	---	---	228	1,160	1,090	697	222	187
25	---	---	---	---	---	---	244	1,220	898	699	258	165
26	---	---	---	---	---	---	254	1,320	784	718	299	145
27	---	---	---	---	---	---	260	1,610	740	745	277	139
28	---	---	---	---	---	---	269	1,960	724	709	266	135
29	---	---	---	---	---	---	255	2,310	726	614	230	133
30	---	---	---	---	---	---	229	2,800	784	624	235	133
31	---	---	---	---	---	---	---	2,990	---	629	250	---
TOTAL	---	---	---	---	---	---	6,211	24,131	45,456	21,489	11,324	7,430
MEAN	---	---	---	---	---	---	207	778	1,515	693	365	248
MAX	---	---	---	---	---	---	269	2,990	3,150	819	661	379
MIN	---	---	---	---	---	---	125	224	724	614	187	133
AC-FT	---	---	---	---	---	---	12,320	47,860	90,160	42,620	22,460	14,740

e Estimated.