PLATTE RIVER BASIN

06714215 SOUTH PLATTE RIVER AT 64TH AVENUE, AT COMMERCE CITY, CO

LOCATION.--Lat 39°48'44", long 104°57'28", in NW14NW14 sec.12, T.3 S., R.68 W., Adams County, Hydrologic Unit 10190003, on left bank 300 ft southeast of intersection of York Street and East 64th Avenue, and 1,900 ft upstream from mouth of Sand Creek at northwest corner of Metro Denver Sewage Disposal plant at Commerce City.

DRAINAGE AREA.--3,884 mi2.

PERIOD OF RECORD.--January 1982 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=06714215

REVISED RECORDS.--WDR CO-86-1: Drainage area.

GAGE.--Water-stage recorder with satellite telemetry, and concrete control. Elevation of gage is 5,105 ft above NGVD of 1929, from topographic map.

REMARKS.--Records good except for estimated daily discharges, which are fair. Natural flow of stream affected by transmountain diversions, storage and flood-control reservoirs, power developments, diversions for irrigation and municipal use, and return flow from irrigated areas. 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	72	9.1	11	9.4	64	9.3	10	389	110	87	130	16
2	378	11	12	7.3	63	8.7	10	216	244	226	68	31
3	94	9.9	14	6.5	124	8.3	10	206	174	205	35	50
4	42	8.3	13	6.6	94	8.7	9.9	156	57	56	95	11
5	14	11	12	6.7	69	8.2	10	80	72	32	222	11
6	13	7.5	11	6.6	e69	7.7	12	18	39	33	33	12
7	11	6.8	13	5.9	69	7.9	11	15	326	144	46	10
8	9.6	21	11	5.9	e74	7.6	12	14	16	26	281	11
9	8.7	71	9.9	7.7	73	7.6	52	162	20	15	148	12
10	8.1	77	8.5	6.3	75	8.3	27	1,170	20	14	22	12
11	7.6	79	6.7	6.5	75	7.4	21	573	78	13	126	12
12	8.8	75	7.3	7.1	69	7.5	15	367	42	14	296	13
13	8.8	70	7.9	7.0	69	7.0	14	214	17	12	212	11
14	9.3	80	8.6	7.5	74	7.7	33	98	16	11	203	10
15	8.6	79	8.1	6.9	47	7.6	31	16	16	13	145	9.9
16	6.9	78	8.2	13	13	8.2	314	15	17	35	34	11
17	7.9	76	8.2	25	13	112	220	131	101	38	31	10
18	8.3	75	9.2	24	12	251	51	215	515	57	77	12
19	7.9	72	8.9	23	13	19	574	255	126	573	30	11
20	9.4	73	8.1	18	12	148	137	182	16	140	21	10
21	9.1	71	7.8	13	10	236	72	118	14	82	19	12
22	8.6	71	6.9	11	10	155	160	50	14	98	16	17
23	10	69	8.1	9.1	e11	178	331	14	26	88	15	14
24	6.8	81	7.8	37	e9.6	55	717	16	31	106	14	13
25	7.3	95	7.3	61	9.0	124	96	55	30	37	14	9.3
26	8.5	89	e7.7	67	8.3	194	26	82	22	24	13	8.1
27	9.2	80	7.6	71	8.5	146	19	53	19	103	15	9.6
28	6.0	47	7.7	60	8.4	21	49	22	19	136	20	8.8
29	42	16	7.3	65	---	12	245	18	99	247	19	12
30	52	13	6.8	66	---	12	412	51	159	481	1,240	11
31	9.2	---	7.1	70	---	11	---	104	---	167	458	---
TOTAL	902.6	1,621.6	278.7	737.0	1,245.8	1,801.7	3,700.9	5,075	2,455	3,313	4,098	400.7
MEAN	29.1	54.1	8.99	23.8	44.5	58.1	123	164	81.8	107	132	13.4
MAX	378	95	14	71	124	251	717	1,170	515	573	1,240	50
MIN	6.0	6.8	6.7	5.9	8.3	7.0	9.9	14	14	11	13	8.1
AC-FT	1,790	3,220	553	1,460	2,470	3,570	7,340	10,070	4,870	6,570	8,130	795
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1982 - 2003, BY WATER YEAR (WY)
MEAN	108	94.2	63.5	88.5	69.2	111	291	676	517	431	357	122
MAX	1,286	927	199	235	325	305	1,335	2,675	2,560	2,130	1,410	755
(WY)	(1985)	(1985)	(1986)	(1984)	(1984)	(1984)	(1984)	(1987)	(1995)	(1995)	(1984)	(1984)
MIN	10.0	9.00	8.79	10.0	8.58	6.81	21.0	33.2	45.1	42.5	35.9	13.4
(WY)	(1989)	(1989)	(1991)	(2002)	(1982)	(1995)	(1991)	(1997)	(2002)	(1994)	(2002)	(2003)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1982 - 2003
ANNUAL TOTAL	16,840.6	25,630.0
ANNUAL MEAN	46.1	70.2	251
HIGHEST ANNUAL MEAN			825 1983
LOWEST ANNUAL MEAN			50.5 2002
HIGHEST DAILY MEAN	1,080 May 24	1,240 Aug 30	4,110 May 27, 1987
LOWEST DAILY MEAN	5.2 Feb 5	5.9 Jan 7	2.1 Mar 14, 1995
ANNUAL SEVEN-DAY MINIMUM	7.1 Feb 3	6.5 Jan 2	3.7 Mar 11, 1995
MAXIMUM PEAK FLOW		3,550 Aug 30	14,300 Jun 8, 1987
MAXIMUM PEAK STAGE		5.50 Aug 30	8.09 Jun 8, 1987
ANNUAL RUNOFF (AC-FT)	33,400	50,840	181,900
10 PERCENT EXCEEDS	89	180	599
50 PERCENT EXCEEDS	17	18	64
90 PERCENT EXCEEDS	7.8	7.7	9.3

e Estimated.