ROARING FORK RIVER BASIN

09085000 ROARING FORK RIVER AT GLENWOOD SPRINGS, CO-Continued

WATER-QUALITY RECORDS

PERIOD OF RECORD.--November 1958 to August 1961, May 1962 to September 1967, January 1970 to May 1972, January 1980 to September 1984, October 1993 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09085000

PERIOD OF DAILY RECORD.--

SPECIFIC CONDUCTANCE: May 1962 to September 1967, January 1980 to September 1984.

WATER TEMPERATURE: May 1962 to May 1967, January 1980 to September 1984, July 2002 to current year.

INSTRUMENTATION:.--Water-quality monitor, January 1980 to September 1984. Water temperature sensor with satellite telemetry, July 2002 to current year.

REMARKS.--Daily maximum and minimum specific-conductance data available in district office. Daily water temperature records are fair.

EXTREMES FOR PERIOD OF DAILY RECORD.--

WATER TEMPERATURE: Maximum recorded, 21.7°C July 24, 2002; minimum, 0.0°C on many days during winter months.

EXTREMES FOR CURRENT YEAR.--

WATER TEMPERATURE: Maximum, 21.5°C, July 20, Aug. 9; minimum, 0.0°C, on many 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
10...	1020	469	10.8	8.5	658	8.2	280	87.0	14.7	1.69	0.9	33.4	126
FEB
04...	1355	258	13.1	8.6	652	1.6	--	--	--	--	--	--	--
APR
24...	1125	547	11.2	8.3	482	6.8	210	66.0	11.3	1.44	0.5	18.1	116
MAY
28...	0915	5,700	11.8	--	186	7.2	82	26.1	3.96	0.86	0.2	3.52	59
JUL
24...	1140	780	10.7	8.6	540	16.2	--	--	--	--	--	--	--
SEP
05...	1155	685	10.7	8.6	590	14.7	230	72.4	13.2	1.61	0.8	28.8	130

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)	Organic nitro- gen, water, fltrd, mg/L (00607)
OCT
10...	43.5	0.2	8.7	132	397	0.54	502	0.10	0.14	<0.015	0.067	0.003	--
FEB
04...	--	--	--	--	--	--	--	0.16	0.15	E.012	0.173	0.003	--
APR
24...	18.6	0.21	8.0	104	297	0.40	439	0.15	0.36	0.021	0.208	0.004	0.13
MAY
28...	2.96	<0.2	6.1	28.4	108	0.15	1,660	0.23	1.7	E.011	0.160	E.002	--
JUL
24...	--	--	--	--	--	--	--	0.10	0.11	E.014	0.076	0.003	--
SEP
05...	39.7	0.2	8.9	110	352	0.48	652	0.12	0.30	<0.015	0.069	<0.002	--

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

Date	Ortho- phos- phate, water, fltrd, mg/L as P (00671)	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)
OCT
10...	<0.007	E.003	0.011	E18	24
FEB
04...	E.005	0.013	0.022	<1	E2
APR
24...	0.007	0.013	0.065	E20	20
MAY
28...	E.006	0.010	0.64	E86	E114
JUL
24...	<0.007	0.006	0.013	E9	E15
SEP
05...	<0.007	0.008	0.015	E35	26
< -- Actual value is known to be less than the value shown. E -- Estimated laboratory analysis value.

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

Date	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)	Zinc, water, fltrd, ug/L (01090)
OCT
10...	<0.2	<1.2	40	<1	4.9	8.9	<0.02	<3	<0.3	<24
APR
24...	<0.2	E.9	720	<1	5.1	30.4	<0.02	<3	<0.3	<24
MAY
28...	<0.2	<1.2	9,730	M	8.1	403	<0.02	<3	<0.3	E3
SEP
05...	<0.2	<1.2	60	M	3.4	9.6	<0.02	<3	<0.3	E2
< -- Actual value is known to be less than the value shown. E -- Estimated laboratory analysis value. M -- Presence of material verified but not quantified.

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						MAY
04...	0915	547	648	8.8		06...	0955	708	422	6.6
NOV						30...	1230	6,350	173	8.2
15...	0915	436	668	3.6		JUL
JAN						03...	0845	1,750	344	12.0
14...	1200	302	652	0.9
APR
04...	0915	329	598	4.0

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	---	---	---	---	---	---	18.9	14.8	16.9	16.7	11.8	14.4
2	---	---	---	---	---	---	17.6	14.4	16.3	17.4	11.4	14.6
3	---	---	---	---	---	---	18.7	15.4	17.1	16.0	12.3	14.2
4	---	---	---	---	---	---	20.0	14.8	17.5	16.8	12.1	14.4
5	---	---	---	---	---	---	19.8	15.9	18.0	16.4	11.2	14.0
6	---	---	---	---	---	---	19.0	15.2	17.2	16.0	12.2	14.3
7	---	---	---	---	---	---	17.2	14.4	16.0	16.4	13.6	14.9
8	---	---	---	---	---	---	18.7	13.8	16.1	17.2	13.3	15.3
9	---	---	---	---	---	---	19.3	13.3	16.4	---	---	---
10	---	---	---	---	---	---	19.1	12.8	16.3	16.8	---	---
11	---	---	---	---	---	---	19.4	12.9	16.4	16.7	14.2	15.3
12	---	---	---	---	---	---	18.8	13.0	16.3	15.4	---	---
13	---	---	---	---	---	---	18.8	13.8	16.5	15.9	12.6	14.3
14	---	---	---	---	---	---	19.1	12.7	16.2	---	11.1	---
15	---	---	---	---	---	---	19.1	13.0	16.5	---	---	---
16	---	---	---	---	---	---	19.5	13.0	16.6	16.9	---	---
17	---	---	---	---	---	---	18.9	13.5	16.6	15.5	12.5	14.1
18	---	---	---	---	---	---	18.8	13.7	16.3	13.5	11.5	12.6
19	---	---	---	---	---	---	17.6	13.3	15.8	14.2	10.4	12.3
20	---	---	---	---	---	---	16.9	14.5	15.7	15.3	9.5	12.6
21	---	---	---	---	---	---	16.8	13.8	15.3	15.9	10.4	13.4
22	---	---	---	---	---	---	17.4	12.8	15.2	15.7	10.7	13.6
23	---	---	---	---	---	---	18.5	13.6	16.1	15.3	10.0	13.0
24	---	---	---	21.7	---	---	18.1	12.8	15.8	15.3	9.8	12.9
25	---	---	---	20.0	16.8	17.6	17.8	12.1	15.2	13.8	10.0	12.4
26	---	---	---	20.5	14.7	17.4	17.6	11.9	15.0	15.5	11.5	13.4
27	---	---	---	19.7	14.4	17.3	17.5	12.4	15.2	13.3	9.8	11.5
28	---	---	---	20.6	15.1	17.8	16.5	11.8	14.5	12.6	9.7	11.3
29	---	---	---	20.9	13.7	17.5	15.4	13.3	14.4	13.3	10.7	12.0
30	---	---	---	21.6	14.7	18.3	16.3	11.1	13.8	13.4	9.4	11.4
31	---	---	---	21.4	15.0	18.4	16.3	12.1	14.5	---	---	---
MONTH	---	---	---	---	---	---	20.0	11.1	16.0	---	---	---

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	14.0	9.0	11.7	7.2	5.3	6.2	3.6	2.1	2.9	2.0	0.2	0.9
2	12.6	9.9	11.5	7.1	5.0	6.2	3.8	1.8	3.1	0.7	0.0	0.3
3	11.4	9.8	10.7	6.0	3.3	4.8	3.5	1.7	2.8	1.1	0.0	0.3
4	11.2	8.7	9.9	5.6	3.2	4.5	3.0	0.7	2.1	2.4	0.0	1.1
5	12.2	9.5	10.7	5.8	2.7	4.5	4.0	2.1	3.1	1.7	0.0	0.9
6	12.8	8.2	10.6	5.9	2.5	4.5	3.7	1.4	2.8	2.2	0.0	1.2
7	13.0	8.3	10.9	5.8	2.6	4.4	2.8	0.8	2.0	1.6	0.0	0.8
8	13.3	8.6	11.1	6.0	4.7	5.3	2.3	0.5	1.6	1.4	0.0	0.6
9	12.6	8.3	10.8	6.0	4.7	5.8	1.9	0.0	0.9	1.6	0.0	0.6
10	12.5	7.8	10.4	4.9	3.8	4.3	1.4	0.0	0.6	2.6	0.6	1.5
11	11.8	8.6	10.3	5.9	3.2	4.4	1.9	0.0	0.7	3.8	2.0	2.8
12	11.7	7.7	10	4.8	2.2	3.8	2.4	0.8	1.6	3.3	1.2	2.4
13	10.4	6.1	8.6	4.1	2.7	3.6	3.3	1.3	2.4	2.6	0.0	1.5
14	10.8	6.2	8.7	6.0	3.9	5.0	2.5	0.1	1.6	2.4	0.0	1.3
15	10.4	6.0	8.5	5.5	3.7	4.6	2.9	0.9	2.0	2.6	0.5	1.4
16	10.4	6.1	8.5	4.3	1.8	3.3	3.3	0.3	1.8	0.9	0.0	0.4
17	10.4	6.0	8.5	4.2	1.5	3.1	3.2	2.0	2.7	1.9	0.0	0.9
18	10.4	6.1	8.6	4.8	2.6	3.9	2.8	0.9	1.8	1.0	0.0	0.4
19	10.0	6.0	8.3	4.4	1.6	3.3	1.3	0.0	0.3	1.3	0.0	0.5
20	9.5	5.7	7.9	4.8	2.0	3.6	0.1	0.0	0.0	1.7	0.0	0.7
21	9.5	5.6	7.9	5.1	2.1	3.8	1.3	0.0	0.5	2.2	0.0	1.1
22	9.5	6.3	7.9	5.1	2.2	3.9	0.9	0.0	0.4	3.0	0.1	1.7
23	9.9	8.2	9.1	4.7	2.4	3.8	0.0	0.0	0.0	3.1	1.6	2.3
24	9.7	7.8	8.6	5.6	3.4	4.6	0.2	0.0	0.0	3.6	1.2	2.5
25	9.4	6.5	7.9	5.1	3.4	4.3	0.5	0.0	0.2	5.4	3.0	4.1
26	8.8	6.0	7.5	3.5	1.0	2.3	0.6	0.0	0.1	4.9	2.6	4.0
27	9.7	7.3	8.5	2.5	0.0	1.4	0.5	0.0	0.1	4.8	1.5	3.4
28	8.9	7.3	8.1	2.7	0.0	1.4	0.7	0.0	0.2	4.6	2.8	3.7
29	8.0	5.8	7.0	3.2	0.3	1.9	1.2	0.0	0.4	4.4	1.9	3.3
30	6.7	4.3	5.5	3.5	0.6	2.3	1.6	0.0	0.8	3.6	1.7	2.9
31	7.2	5.3	6.2	---	---	---	0.5	0.0	0.1	5.7	3.1	4.3
MONTH	14.0	4.3	9.0	7.2	0.0	4.0	4.0	0.0	1.3	5.7	0.0	1.7
	FEBRUARY			MARCH			APRIL			MAY
1	5.6	2.9	4.5	5.1	2.5	3.9	11.4	6.4	9.2	10.4	6.7	8.6
2	6.3	3.6	4.7	6.4	2.0	4.1	9.5	6.3	8.2	9.7	6.4	8.1
3	4.4	1.9	3.2	5.5	1.6	3.9	8.6	5.5	6.6	12.0	7.0	9.6
4	2.8	1.1	1.7	4.7	1.8	3.3	7.7	3.4	5.9	10.5	7.1	8.4
5	2.7	0.3	1.3	5.1	1.0	3.1	8.7	4.2	6.6	11.3	6.5	8.6
6	1.7	0.0	0.6	6.0	2.8	4.6	8.3	5.0	6.7	11.4	6.0	8.9
7	0.7	0.0	0.1	8.0	4.0	6.0	8.6	4.6	6.8	12.5	7.1	9.7
8	0.3	0.0	0.0	8.8	4.4	6.8	10.6	4.3	7.5	11.3	8.4	9.5
9	0.4	0.0	0.1	8.4	4.2	6.6	12.4	5.6	9.2	9.7	7.2	8.2
10	0.8	0.0	0.3	8.5	4.4	6.6	13.7	6.9	10.5	9.8	6.5	8.0
11	2.0	0.0	0.9	9.6	5.6	7.5	13.3	7.6	10.7	11.0	5.7	8.6
12	2.6	0.0	1.2	10.8	5.8	8.4	11.2	7.3	9.5	14.5	7.0	10.7
13	4.0	1.4	2.7	10.2	5.2	8.1	12.8	6.1	9.5	13.9	9.2	11.9
14	5.0	2.9	4.0	9.3	5.7	7.8	12.5	7.3	9.9	14.9	8.8	11.9
15	5.1	3.2	4.2	9.6	5.8	8.2	10.2	7.3	8.1	13.0	9.7	10.9
16	4.1	1.9	3.0	8.8	6.9	8.0	12.2	5.9	8.8	13.9	8.4	11.1
17	5.1	2.0	3.7	8.1	5.8	6.4	10.3	6.8	8.9	12.2	7.9	10.4
18	5.7	3.1	4.4	7.7	4.2	6.2	10.0	7.3	8.6	11.2	8.0	9.2
19	5.2	1.6	3.6	7.3	4.7	6.2	10.4	6.4	8.4	11.8	6.4	9.0
20	4.9	0.9	3.2	7.9	4.3	6.5	12.4	7.1	9.7	11.9	6.8	9.5
21	4.3	2.3	3.6	10.0	5.9	7.7	11.3	7.2	9.5	12.3	6.6	9.5
22	3.9	2.3	2.9	10.9	6.0	8.5	12.6	7.9	10.2	13.0	7.3	10.2
23	3.3	0.8	2.2	10.8	6.0	8.8	10.4	6.3	7.6	12.0	7.3	9.8
24	3.9	1.1	2.7	9.7	7.1	8.0	10.8	5.5	7.9	12.3	7.2	9.8
25	4.0	2.5	3.3	10.7	5.3	8.1	13.5	6.4	9.9	11.4	7.4	9.3
26	4.6	3.4	3.9	8.7	6.0	7.0	13.5	8.1	11.0	12.4	6.9	9.6
27	5.1	2.7	3.8	6.9	4.8	6.0	12.7	7.9	10.5	13.0	7.6	10.2
28	6.0	3.2	4.4	6.9	3.0	5.0	13.2	8.0	10.4	12.7	7.1	9.9
29	---	---	---	6.5	2.3	4.8	12.4	8.0	10.2	11.9	7.3	9.7
30	---	---	---	8.5	3.1	6.0	11.2	7.6	9.6	11.2	7.3	9.3
31	---	---	---	---	4.8	---	---	---	---	10.8	7.1	9.1
MONTH	6.3	0.0	2.6	---	1.0	---	13.7	3.4	8.9	14.9	5.7	9.6
	JUNE			JULY			AUGUST			SEPTEMBER
1	10.9	7.3	9.1	16.5	11.8	14.2	20.3	14.9	17.7	18.4	12.7	15.8
2	11.4	7.0	9.1	16.8	11.8	14.5	20.1	15.4	17.9	18.0	13.3	15.8
3	11.8	7.3	9.6	16.9	12.0	14.6	19.5	15.8	17.5	17.3	13.6	15.5
4	11.4	7.3	9.5	17.3	12.3	15.0	20.7	15.1	17.9	17.8	11.8	14.9
5	11.4	8.1	9.8	17.4	12.3	15.0	20.5	15.2	18.0	16.6	13.4	15.0
6	11.1	7.2	9.4	16.1	12.5	14.5	19.7	14.9	17.7	16.5	13.3	14.9
7	12.5	8.5	10.4	17.3	12.3	14.9	19.0	15.2	17.3	16.4	13.6	14.7
8	12.7	7.6	10.3	18.0	12.6	15.5	21.1	15.3	18.1	16.0	11.8	14.0
9	12.2	8.7	10.6	18.1	12.9	15.7	21.5	15.8	18.7	15.1	12.9	13.9
10	10.9	8.8	10.2	18.4	12.5	15.6	21.1	15.7	18.5	13.2	11.1	12.2
11	12.8	8.6	10.7	18.2	12.8	15.9	19.8	15.6	18.0	13.8	10.0	11.9
12	12.9	8.6	10.9	18.6	13.5	16.2	20.7	15.1	18.0	15.2	9.5	12.5
13	12.1	9.0	10.7	18.5	13.2	16.1	21.4	15.6	18.5	15.2	11.8	13.5
14	13.9	8.6	11.1	19.8	13.7	16.8	20.7	15.3	18.1	13.7	8.6	11.4
15	13.9	9.0	11.6	18.8	14.4	16.8	19.4	14.5	17.3	14.4	8.7	11.7
16	13.3	10.3	11.6	19.6	14.0	16.6	18.1	15.1	16.7	15.0	10.2	12.8
17	12.7	9.0	11.0	20.4	15.0	17.7	17.6	14.0	15.8	14.7	11.8	13.1
18	13.7	9.6	11.6	21.2	15.9	18.5	18.3	14.4	16.1	13.5	8.8	11.3
19	12.6	9.4	11.3	20.0	15.4	18.0	18.7	12.8	15.8	13.3	8.4	10.7
20	12.3	9.7	11.2	21.5	15.4	18.3	19.4	13.8	16.8	13.9	9.1	11.6
21	14.4	9.3	11.8	21.3	15.7	18.4	18.4	14.1	16.6	13.6	8.8	11.4
22	14.4	9.8	12.2	20.6	15.4	18.2	19.3	15.0	17.1	13.9	8.7	11.5
23	14.8	9.8	12.5	21.0	15.4	18.2	17.8	15.3	16.8	14.2	9.2	11.9
24	14.1	10.7	12.6	20.3	15.1	18.0	19.7	14.5	17.1	14.3	9.3	12.1
25	14.5	10.4	12.4	20.6	15.9	18.5	19.4	15.1	17.2	13.9	9.0	11.8
26	14.8	9.7	12.4	20.6	16.0	18.3	18.4	14.7	16.9	14.3	9.0	11.9
27	15.4	10.4	13.0	19.3	15.4	17.4	16.8	14.1	15.4	14.5	9.6	12.4
28	15.6	10.8	13.4	19.5	14.4	17.2	19.0	14.0	16.3	14.8	9.9	12.6
29	16.1	11.2	13.8	19.7	15.6	17.8	17.9	14.2	16.3	14.8	9.9	12.7
30	15.9	11.3	13.8	20.7	14.7	17.7	16.9	13.6	15.3	14.9	10.7	13.0
31	---	---	---	20.2	15.2	17.8	18.0	12.8	15.5	---	---	---
MONTH	16.1	7.0	11.3	21.5	11.8	16.7	21.5	12.8	17.1	18.4	8.4	12.9