ARKANSAS RIVER BASIN

07096000 ARKANSAS RIVER AT CANON CITY, CO

LOCATION.--Lat 38°26'02", long 105°15'24", in SE14SE14 sec.31, T.18 S., R.70 W., Fremont County, Hydrologic Unit 11020002, on right bank 800 ft upstream from Sand Creek, 0.7 mi downstream from Grape Creek, and 0.7 mi upstream from First Street Bridge at Canon City.

DRAINAGE AREA.--3,117 mi2.

WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--January 1888 to current year. Monthly discharge only for some periods, published in WSP 1311. Published as "near Canyon" 1900-1906. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=07096000

REVISED RECORDS.--WSP 1117: Drainage area. WSP 1311: 1897-98.

GAGE.--Water-stage recorder with satellite telemetry. Datum of gage is 5,342.13 ft above NGVD of 1929. See WSP 1711 or 1731 for history of changes prior to Oct. 1, 1957. Oct. 1, 1957 to Nov. 15, 1962, water-stage recorder at present site at datum 1.49 ft higher.

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

COOPERATION.--Records collected and computed by Colorado Division of Water Resources and reviewed by Geological Survey.

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	137	221	222	e220	223	236	231	196	3,460	755	569	299
2	156	226	224	e220	228	231	273	173	3,540	751	559	255
3	163	221	224	e215	231	223	359	166	3,180	709	542	264
4	177	214	226	e215	223	217	348	165	2,720	668	525	271
5	175	205	219	e220	209	224	324	164	2,330	644	519	276
6	166	199	223	e220	216	225	272	166	2,050	640	464	264
7	161	210	222	e215	e215	216	264	165	1,650	608	492	292
8	157	226	223	223	e210	218	264	159	1,280	604	522	367
9	157	210	234	e225	e220	223	268	153	1,100	632	439	373
10	154	221	232	e225	e240	218	250	151	1,240	639	577	367
11	138	199	211	e230	260	213	205	132	1,520	633	580	470
12	117	190	e214	e220	263	208	205	123	1,660	646	557	460
13	111	190	e218	e220	274	215	198	119	1,790	620	484	436
14	98	215	e220	e215	287	200	194	126	1,900	632	396	442
15	102	204	e220	e220	266	192	212	131	1,790	609	331	415
16	128	191	e225	e220	243	209	245	220	1,780	595	288	393
17	132	176	232	e210	231	228	198	279	1,860	611	262	295
18	136	169	e230	e210	233	248	159	328	1,630	602	268	271
19	143	175	e215	e210	236	248	160	489	1,510	587	285	316
20	154	170	e210	e210	221	220	166	706	1,640	612	329	326
21	157	162	e215	e220	219	236	160	636	1,680	614	312	307
22	156	174	e220	e225	223	233	139	510	1,540	616	283	292
23	162	184	e230	e220	234	237	131	595	1,550	602	337	294
24	165	186	e230	224	219	245	149	906	1,350	592	361	263
25	176	190	e225	225	e230	254	151	1,320	1,020	584	375	236
26	172	190	e225	221	e230	250	143	1,430	894	603	404	214
27	180	205	e230	215	e240	256	144	1,680	800	620	424	209
28	169	220	e230	219	235	242	172	2,190	768	704	396	205
29	165	217	e235	223	---	227	232	2,610	750	709	390	206
30	189	220	e230	218	---	218	257	3,080	748	623	351	204
31	216	---	e225	219	---	215	---	3,450	---	546	334	---
TOTAL	4,769	5,980	6,939	6,792	6,559	7,025	6,473	22,718	50,730	19,610	12,955	9,282
MEAN	154	199	224	219	234	227	216	733	1,691	633	418	309
MAX	216	226	235	230	287	256	359	3,450	3,540	755	580	470
MIN	98	162	210	210	209	192	131	119	748	546	262	204
AC-FT	9,460	11,860	13,760	13,470	13,010	13,930	12,840	45,060	100,600	38,900	25,700	18,410
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1889 - 2003, BY WATER YEAR (WY)
MEAN	370	377	370	348	344	353	421	1,102	2,263	1,456	845	445
MAX	1,195	620	623	609	781	711	1,120	2,667	4,286	5,541	2,134	1,411
(WY)	(1912)	(1924)	(1983)	(1983)	(1985)	(1989)	(1942)	(1984)	(1980)	(1957)	(1957)	(1909)
MIN	154	180	204	195	217	176	108	243	300	200	168	142
(WY)	(2003)	(1940)	(1940)	(1979)	(1978)	(1904)	(1940)	(1977)	(2002)	(2002)	(2002)	(2002)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1889 - 2003
ANNUAL TOTAL	89,669	159,832
ANNUAL MEAN	246	438	727
HIGHEST ANNUAL MEAN			1,299 1995
LOWEST ANNUAL MEAN			280 2002
HIGHEST DAILY MEAN	472 May 17	3,540 Jun 2	9,480 Jun 29, 1957
LOWEST DAILY MEAN	98 Oct 14	98 Oct 14	69 May 13, 1959
ANNUAL SEVEN-DAY MINIMUM	118 Oct 12	118 Oct 12	87 Apr 9, 1940
MAXIMUM PEAK FLOW		3,680 May 31	a19,000 Aug 2, 1921
MAXIMUM PEAK STAGE		8.99 May 31	b,c10.70 Aug 2, 1921
ANNUAL RUNOFF (AC-FT)	177,900	317,000	526,300
10 PERCENT EXCEEDS	380	760	1,690
50 PERCENT EXCEEDS	222	230	412
90 PERCENT EXCEEDS	153	162	237

e Estimated. a Site and datum then in use, from rating curve extended above 5,000 ft3/s. b From floodmark. c Maximum gage height, 10.90 ft, Jun 18, 1995.