GREEN RIVER BASIN

09239500 YAMPA RIVER AT STEAMBOAT SPRINGS, CO-Continued

WATER-QUALITY RECORDS

PERIOD OF RECORD.--October 1990 to September 1993, October 1996 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09239500

PERIOD OF DAILY RECORD.--WATER TEMPERATURE: July 2002 to current year.

INSTRUMENTATION.--Water-temperature sensor with satellite telemetry since July 2002.

REMARKS.--Daily record of water temperature is excellent. Interruptions in daily record are due to instrument malfunction.

EXTREMES FOR PERIOD OF DAILY RECORD.--

WATER TEMPERATURE: Maximum, 27.2°C, Aug. 13, 2003; minimum, 0.0°C, on several days in 2003.

EXTREMES FOR CURRENT YEAR.--

WATER TEMPERATURE: Maximum, 27.2°C, Aug. 13; minimum, 0.0°C, on several days.

WATER-QUALITY DATA, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

Date	Time	Instan- taneous dis- charge, cfs (00061)	Dis- solved oxygen, mg/L (00300)	pH, water, unfltrd field, std units (00400)	Specif. conduc- tance, wat unf uS/cm 25 degC (00095)	Temper- ature, water, deg C (00010)	Hard- ness, water, unfltrd mg/L as CaCO3 (00900)	Calcium water, fltrd, mg/L (00915)	Magnes- ium, water, fltrd, mg/L (00925)	Potas- sium, water, fltrd, mg/L (00935)	Sodium adsorp- tion ratio (00931)	Sodium, water, fltrd, mg/L (00930)	Alka- linity, wat flt fxd end lab, mg/L as CaCO3 (29801)
OCT
30...	0830	57	10.1	8.2	255	3.6	110	29.1	9.65	1.59	0.4	8.90	100
FEB
18...	1115	91	11.4	8.3	309	0.3	140	34.4	12.0	1.95	0.4	11.2	145
MAY
29...	0750	4,310	9.7	7.3	47	6.5	20	5.46	1.46	0.76	0.2	1.76	21
AUG
13...	1115	80	7.5	8.7	271	22.6	120	31.7	10.8	1.90	0.4	9.60	104

WATER-QUALITY DATA, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

Date	Chlor- ide, water, fltrd, mg/L (00940)	Fluor- ide, water, fltrd, mg/L (00950)	Silica, water, fltrd, mg/L (00955)	Sulfate water, fltrd, mg/L (00945)	Residue water, fltrd, sum of consti- tuents mg/L (70301)	Residue water, fltrd, tons/ acre-ft (70303)	Residue water, fltrd, tons/d (70302)	Ammonia + org-N, water, fltrd, mg/L as N (00623)	Ammonia + org-N, water, unfltrd mg/L as N (00625)	Ammonia water, fltrd, mg/L as N (00608)	Nitrite + nitrate water fltrd, mg/L as N (00631)	Nitrite water, fltrd, mg/L as N (00613)	Ortho- phos- phate, water, fltrd, mg/L as P (00671)
OCT
30...	4.87	<0.2	10.3	24.4	149	0.20	22.9	0.36	0.34	<0.015	E.021	E.002	E.004
FEB
18...	5.89	0.18	9.0	31.8	194	0.26	47.6	0.24	0.35	<0.015	0.115	0.003	<0.007
MAY
29...	0.95	<0.2	7.5	4.5	35	0.05	413	0.21	0.38	<0.015	0.054	E.002	E.006
AUG
13...	3.93	<0.2	9.7	30.4	160	0.22	34.7	0.35	0.40	<0.015	<0.022	<0.002	0.033

WATER-QUALITY DATA, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

Date	Phos- phorus, water, fltrd, mg/L (00666)	Phos- phorus, water, unfltrd mg/L (00665)	E coli, m-TEC MF, water, col/ 100 mL (31633)	Fecal coli- form, M-FC 0.7u MF col/ 100 mL (31625)	Cadmium water, fltrd, ug/L (01025)	Copper, water, fltrd, ug/L (01040)	Iron, water, unfltrd recover -able, ug/L (01045)	Lead, water, fltrd, ug/L (01049)	Mangan- ese, water, fltrd, ug/L (01056)	Mangan- ese, water, unfltrd recover -able, ug/L (01055)	Mercury water, fltrd, ug/L (71890)	Selen- ium, water, fltrd, ug/L (01145)	Silver, water, fltrd, ug/L (01075)
OCT
30...	0.015	0.027	E9	E3	<0.2	<1.2	150	<1	13.1	24.5	<0.02	<3	<0.3
FEB
18...	0.009	0.025	E5	E7	E.1	<1.2	280	<1	66.0	98.2	<0.02	<3	<0.3
MAY
29...	0.014	0.080	180	167	<0.2	E.6	1,220	<1	11.5	54.5	<0.02	<3	<0.3
AUG
13...	0.051	0.069	33	93	<0.2	2.1	220	<1	15.0	40.7	<0.02	<3	<0.3

WATER-QUALITY DATA, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

Date	Zinc, water, fltrd, ug/L (01090)
OCT
30...	<24
FEB
18...	<24
MAY
29...	4
AUG
13...	<3
< -- Actual value is known to be less than the value shown. E -- Estimated laboratory analysis value.

MISCELLANEOUS FIELD MEASUREMENTS, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

Date	Time	Instan- taneous dis- charge, cfs (00061)	Specif. conduc- tance, wat unf uS/cm 25 degC (00095)	Temper- ature, water, deg C (00010)		Date	Time	Instan- taneous dis- charge, cfs (00061)	Specif. conduc- tance, wat unf uS/cm 25 degC (00095)	Temper- ature, water, deg C (00010)
OCT						JUN
28...	1140	58	246	5.8		26...	1035	630	98	10.7
JAN						AUG
13...	1420	60	277	0.2		04...	1450	98	249	22.7
MAR						SEP
26...	1220	140	305	3.8		09...	1525	103	286	16.7
MAY
08...	1450	577	198	7.2

Temperature, water, degrees CelsiuS 

WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002

DAY	MAX	MIN	MEAN	MAX	MIN	MEAN	MAX	MIN	MEAN	MAX	MIN	MEAN
	JUNE			JULY			AUGUST			SEPTEMBER
1	---	---	---	---	---	---	24.9	17.5	20.8	21.0	13.8	17.3
2	---	---	---	---	---	---	22.2	17.6	19.7	22.0	13.8	17.6
3	---	---	---	---	---	---	22.3	17.8	19.8	20.0	14.6	17.4
4	---	---	---	---	---	---	25.2	16.7	20.8	21.8	14.6	17.8
5	---	---	---	---	---	---	24.3	19.2	21.1	20.7	14.3	17.4
6	---	---	---	---	---	---	24.1	17.2	19.9	18.1	14.4	16.5
7	---	---	---	---	---	---	20.7	17.1	18.9	18.1	14.7	16.2
8	---	---	---	---	---	---	21.4	16.1	18.9	20.4	14.8	17.4
9	---	---	---	---	---	---	23.8	15.7	19.3	18.9	16.2	17.4
10	---	---	---	---	---	---	24.5	15.2	19.4	19.3	15.8	17.3
11	---	---	---	---	---	---	25.0	15.5	19.8	18.3	15.7	16.9
12	---	---	---	---	---	---	24.8	16.1	20.1	18.3	15.5	16.5
13	---	---	---	---	---	---	23.9	16.1	19.6	17.5	14.2	15.8
14	---	---	---	---	---	---	24.4	15.2	19.4	19.3	13.2	16.1
15	---	---	---	---	---	---	25.0	15.4	19.8	19.6	14.1	16.8
16	---	---	---	---	---	---	24.9	15.7	20.0	18.8	14.3	16.5
17	---	---	---	---	---	---	23.9	15.6	19.5	16.2	14.1	15.2
18	---	---	---	---	---	---	22.4	15.9	18.7	14.9	12.6	13.8
19	---	---	---	---	---	---	22.0	15.3	18.7	14.0	11.6	12.7
20	---	---	---	---	---	---	22.5	17.1	19.1	17.0	11.1	13.8
21	---	---	---	---	---	---	19.7	16.5	18.1	17.2	12.1	14.4
22	---	---	---	---	---	---	19.1	14.1	16.9	16.5	10.8	13.6
23	---	---	---	---	---	---	21.8	14.9	18.1	16.7	10.9	13.6
24	---	---	---	---	---	---	24.0	16.3	19.7	17.1	11.1	13.9
25	---	---	---	21.5	---	---	23.1	15.1	18.9	15.8	12.1	13.8
26	---	---	---	24.6	17.6	20.5	24.0	15.4	19.4	16.8	11.9	14.0
27	---	---	---	22.6	17.5	19.9	22.1	16.3	19.2	16.0	11.0	13.3
28	---	---	---	24.3	17.2	20.4	19.4	15.7	17.6	14.9	10.5	12.6
29	---	---	---	25.3	16.8	20.8	18.3	14.8	16.3	13.5	11.2	12.3
30	---	---	---	26.5	17.8	21.7	19.8	13.1	16.6	14.9	10.0	12.2
31	---	---	---	25.7	17.8	21.4	20.1	14.5	17.4	---	---	---
MONTH	---	---	---	---	---	---	25.2	13.1	19.1	22.0	10.0	15.3

Temperature, water, degrees Celsius-continued

WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

DAY	MAX	MIN	MEAN	MAX	MIN	MEAN	MAX	MIN	MEAN	MAX	MIN	MEAN
	OCTOBER			NOVEMBER			DECEMBER			JANUARY
1	15.1	10.0	12.4	---	---	---	---	---	---	0.3	0.2	0.2
2	14.7	10.1	12.3	---	---	---	---	---	---	0.4	0.2	0.3
3	12.1	9.5	10.6	---	---	---	3.0	1.0	2.0	0.4	0.2	0.3
4	11.3	8.5	9.8	---	---	---	3.1	2.0	2.5	0.4	0.2	0.3
5	11.3	9.3	10.1	---	---	---	3.8	2.5	3.2	0.3	0.2	0.3
6	12.3	8.7	10.3	---	---	---	3.3	1.7	2.5	0.4	0.2	0.2
7	14.1	8.4	11.1	---	---	---	2.2	0.7	1.3	0.3	0.2	0.2
8	13.9	8.7	11.1	---	---	---	1.4	0.3	0.8	0.4	0.2	0.2
9	13.3	8.1	10.6	---	---	---	0.9	0.3	0.7	0.4	0.1	0.2
10	12.8	7.7	10.3	---	---	---	0.8	0.5	0.6	0.3	0.2	0.2
11	10.9	9.0	10	---	---	---	0.9	0.4	0.6	0.3	0.2	0.3
12	11.1	6.1	8.5	---	---	---	0.5	0.3	0.4	0.3	0.2	0.3
13	11.0	5.0	7.9	---	---	---	2.0	0.3	1.2	0.3	0.2	0.2
14	11.1	5.3	7.9	---	---	---	1.6	0.5	0.8	0.3	0.1	0.2
15	10.8	5.3	7.9	---	---	---	0.8	0.5	0.6	0.3	0.1	0.2
16	10.7	5.5	7.9	---	---	---	1.1	0.5	0.7	0.4	0.1	0.2
17	11.0	5.2	7.9	---	---	---	0.8	0.2	0.5	0.3	0.1	0.2
18	11.0	5.3	7.9	---	---	---	0.6	0.2	0.3	0.4	0.1	0.2
19	10.7	5.2	7.8	---	---	---	0.3	0.2	0.2	0.4	0.2	0.3
20	10.0	4.7	7.2	---	---	---	0.3	0.1	0.2	0.4	0.2	0.3
21	10.1	4.5	7.1	---	---	---	0.3	0.2	0.2	0.4	0.3	0.3
22	8.5	4.7	6.6	---	---	---	0.3	0.2	0.2	0.5	0.3	0.4
23	8.4	6.6	7.4	---	---	---	0.3	0.1	0.2	0.4	0.2	0.3
24	9.6	6.3	7.6	---	---	---	0.3	0.2	0.2	0.3	0.1	0.3
25	8.4	5.9	7.1	---	---	---	0.3	0.2	0.2	0.3	0.2	0.2
26	8.9	4.9	6.9	---	---	---	0.3	0.2	0.2	0.5	0.2	0.3
27	---	---	---	---	---	---	0.3	0.2	0.2	1.0	0.2	0.5
28	---	---	---	---	---	---	0.3	0.2	0.2	0.5	0.1	0.4
29	---	---	---	---	---	---	0.3	0.2	0.2	0.6	0.1	0.2
30	---	---	---	---	---	---	0.3	0.2	0.2	0.3	0.1	0.2
31	---	---	---	---	---	---	0.3	0.2	0.2	0.9	0.1	0.3
MONTH	---	---	---	---	---	---	---	---	---	1.0	0.1	0.3
	FEBRUARY			MARCH			APRIL			MAY
1	2.1	0.2	1.1	4.2	0.1	1.8	9.1	3.7	6.6	7.9	5.4	6.4
2	2.3	0.6	1.5	2.5	0.1	0.9	7.2	2.5	5.1	10.1	5.0	7.2
3	2.0	0.1	0.7	3.4	0.1	1.4	4.8	1.3	2.8	9.6	5.4	7.6
4	1.7	0.0	0.4	1.9	0.2	0.9	7.6	0.6	4.1	8.2	6.6	7.3
5	0.8	0.0	0.2	4.2	0.1	1.6	6.6	2.2	4.4	8.2	5.5	6.7
6	0.5	0.0	0.2	3.3	1.3	2.1	6.2	1.9	4.3	10.3	5.3	7.6
7	0.4	0.0	0.1	3.8	1.2	2.4	6.0	2.6	4.3	9.3	5.4	7.2
8	0.3	0.0	0.1	6.8	1.2	3.7	9.0	1.6	5.4	8.5	6.2	7.3
9	0.1	0.1	0.1	6.3	1.1	3.6	10.3	3.0	6.9	8.6	5.8	6.9
10	0.1	0.1	0.1	7.2	2.3	4.3	10.3	2.8	6.8	8.4	5.4	6.7
11	0.2	0.1	0.1	7.6	2.6	4.7	9.7	2.8	6.2	9.9	5.2	7.5
12	0.3	0.1	0.1	8.4	3.6	5.5	8.4	2.9	5.8	12.9	5.1	8.7
13	0.2	0.1	0.1	7.7	2.4	4.7	10.3	2.6	6.2	13.1	6.9	9.7
14	0.3	0.1	0.2	5.8	2.2	3.9	9.3	3.4	6.3	13.6	6.6	9.8
15	0.3	0.1	0.1	7.6	2.5	4.8	6.4	3.7	4.8	10.7	7.3	8.9
16	0.3	0.0	0.1	4.8	3.0	3.9	9.0	2.9	5.4	12.0	7.6	9.2
17	0.3	0.1	0.1	3.6	2.3	2.9	8.2	3.6	5.9	10.2	6.9	8.4
18	0.3	0.0	0.1	5.3	1.5	3.3	7.2	4.1	5.4	8.4	7.1	7.8
19	0.4	0.0	0.2	6.6	2.0	4.2	7.7	3.7	5.4	10.6	6.0	7.8
20	0.4	0.0	0.2	6.3	2.1	4.3	11.1	3.4	6.9	10.9	5.2	7.5
21	0.4	0.0	0.1	5.6	2.9	4.1	10.2	4.3	7.3	10.7	5.7	7.7
22	0.3	0.1	0.1	6.2	3.0	4.5	9.0	5.4	7.1	11.1	5.8	7.9
23	0.3	0.1	0.1	7.5	2.3	4.9	6.9	1.8	3.8	11.1	6.0	8.0
24	0.2	0.0	0.1	5.1	2.7	4.0	6.8	1.3	3.8	11.1	6.0	8.1
25	0.2	0.1	0.1	7.4	1.9	4.8	10.6	3.0	6.4	10.4	6.1	7.7
26	1.2	0.1	0.6	5.6	3.3	4.4	11.4	4.5	8.0	11.0	6.2	8.0
27	3.0	1.0	1.8	4.3	1.6	2.9	10.7	6.0	8.5	11.0	6.4	8.2
28	3.3	0.4	1.7	5.9	1.3	3.4	10.4	5.5	7.9	11.4	6.5	8.3
29	---	---	---	3.3	1.2	2.3	9.4	6.6	8.1	10.9	6.2	7.8
30	---	---	---	---	---	---	8.8	6.2	7.3	11.0	6.4	8.0
31	---	---	---	---	---	---	---	---	---	11.3	6.8	8.3
MONTH	3.3	0.0	0.4	---	---	---	11.4	0.6	5.9	13.6	5.0	7.9
	JUNE			JULY			AUGUST			SEPTEMBER
1	10.1	6.7	7.9	18.1	12.4	15.4	25.0	18.4	21.3	21.4	15.3	18.1
2	10.0	5.7	7.4	18.5	12.2	15.5	25.0	19.1	22.1	21.0	16.5	18.6
3	10.4	5.7	7.6	18.5	12.3	15.6	23.4	19.8	21.8	21.8	16.5	18.6
4	11.2	6.9	8.6	19.1	13.1	16.2	23.9	18.7	21.2	21.9	16.1	18.6
5	10.5	7.2	8.6	19.0	12.7	16.1	24.7	18.6	21.5	19.1	16.2	17.6
6	10.9	7.2	8.7	18.2	12.9	16.0	23.9	18.9	21.6	19.6	16.3	17.7
7	11.5	7.6	9.1	19.6	13.4	16.7	22.0	19.1	20.5	17.8	16.0	16.8
8	12.2	7.3	9.3	19.3	13.4	16.7	24.4	18.2	21.0	18.6	14.4	16.6
9	11.5	7.9	9.4	19.2	13.3	16.7	25.5	19.1	22.1	17.7	15.4	16.5
10	11.8	8.1	9.7	19.8	13.8	17.2	26.1	19.1	22.4	16.3	13.5	14.8
11	12.0	8.0	9.5	19.7	14.6	17.6	26.2	19.8	22.3	15.6	13.0	14.2
12	11.2	7.6	9.4	21.7	14.9	18.3	26.2	18.9	22.0	17.3	13.5	15.5
13	12.6	8.5	10.2	21.1	15.9	18.7	27.2	19.3	22.7	17.8	14.0	15.8
14	13.5	8.6	10.7	22.8	15.6	19.2	26.7	19.5	22.5	16.7	12.0	14.6
15	14.2	9.0	11.2	23.4	17.3	20.2	25.2	17.6	21.0	17.2	12.4	14.9
16	12.9	9.7	11.2	25.7	18.0	21.5	25.0	19.2	21.1	17.3	13.5	15.3
17	14.2	9.5	11.7	25.4	19.1	22.0	22.4	18.3	19.8	16.0	12.6	14.3
18	15.0	10.2	12.3	26.4	19.0	22.5	22.0	18.1	19.6	16.4	11.4	13.6
19	14.5	10.9	12.5	26.5	19.6	22.6	23.5	17.6	20.2	16.6	11.1	13.8
20	13.5	10.9	12.1	25.4	19.1	22.0	24.1	17.8	20.7	16.6	11.8	14.0
21	14.7	10.2	12.3	25.4	19.0	22.3	23.9	18.2	20.6	16.7	11.3	13.9
22	15.9	10.7	13.1	27.0	19.7	23.4	23.1	18.5	20.5	17.0	11.3	14.0
23	16.3	10.6	13.3	25.8	19.5	22.9	23.9	18.5	20.2	16.8	12.0	14.3
24	14.9	11.7	13.2	25.2	19.6	22.5	23.4	17.7	20.3	16.8	11.9	14.3
25	13.0	9.7	11.3	25.3	19.2	22.3	24.4	18.9	20.6	16.8	11.6	14.2
26	15.2	8.9	11.9	26.0	19.7	22.6	23.9	17.0	20.0	17.0	11.8	14.3
27	16.0	9.4	12.6	25.5	19.3	22.2	21.3	18.3	19.6	17.0	12.1	14.5
28	17.3	10.2	13.6	24.7	19.6	22.1	23.6	17.1	19.9	16.9	12.5	14.7
29	17.5	11.3	14.5	24.8	19.9	21.6	20.0	17.3	18.8	16.8	12.6	14.8
30	17.8	11.5	14.7	25.0	18.4	21.5	20.2	16.5	17.9	17.1	13.4	15.2
31	---	---	---	23.0	19.1	21.0	19.4	16.1	17.6	---	---	---
MONTH	17.8	5.7	10.9	27.0	12.2	19.7	27.2	16.1	20.8	21.9	11.1	15.5