EAGLE RIVER BASIN

09069000 EAGLE RIVER AT GYPSUM, CO

WATER-QUALITY RECORDS

LOCATION.--Lat 39°39'00", long 106°57'06", Eagle County, Hydrologic Unit 14010003, at bridge at Gypsum, about 400 ft upstream from Gypsum Creek, about 520 ft upstream from bridge on U.S. Highways 6 and 24, and about 550 ft upstream from gaging station.

DRAINAGE AREA.--944 mi2, at gaging station.

PERIOD OF RECORD.--April 1947 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09069000

PERIOD OF DAILY RECORD.--

SPECIFIC CONDUCTANCE: April 1947 to March 31, 1995.

WATER TEMPERATURE: April 1949 to March 31, 1995.

REMARKS.--Records of discharge are given for Eagle River below Gypsum (station 09070000), located 550 ft downstream from Eagle River at Gypsum (station 09069000), except for Nov. 12, Dec. 17, Jan. 15, Feb. 19, and Mar 26.

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 inc tit field, mg/L as CaCO3 (39086)
OCT
23...	0850	162	9.5	8.2	983	6.5	330	103	18.3	3.38	2	76.7	125
NOV
12...	1145	143	13.6	8.6	941	2.5	310	94.6	17.7	2.84	2	75.4	114
DEC
17...	0900	122	11.2	8.2	1,100	0.0	320	97.6	19.0	3.44	2	89.0	120
JAN
15...	1050	96	11.8	8.3	1,160	0.2	330	101	19.9	3.07	2	93.4	120
FEB
19...	1200	86	12.4	8.3	1,190	2.8	360	108	21.7	4.09	2	104	116
MAR
26...	1045	146	9.6	8.3	1,040	6.4	310	91.5	20.6	3.11	2	85.3	116
APR
15...	1200	420	9.0	8.2	486	8.4	170	49.5	11.2	1.70	1	31.7	81
MAY
20...	1315	1,680	9.0	7.9	218	9.6	94	27.5	6.05	0.90	0.3	6.86	38
JUN
05...	1345	3,020	8.4	8.1	178	11.7	79	23.3	4.92	0.82	0.3	5.82	49
JUL
23...	0844	336	7.9	8.3	599	15.9	220	67.0	12.1	1.97	1	37.5	98
AUG
12...	1220	216	7.6	8.2	881	20.2	300	93.0	16.1	3.22	2	62.1	109
SEP
09...	1200	305	7.5	8.1	735	14.3	280	84.9	16.6	3.02	1	46.2	112

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

Date	Bicar- bonate, wat flt incrm. titr., field, mg/L (00453)	Carbon- ate, wat flt incrm. titr., field, mg/L (00452)	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)	Residue total at 105 deg. C, sus- pended, mg/L (00530)	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)
OCT
23...	152	--	119	<0.2	4.1	200	601	0.82	263	--	0.15	0.21	E.013
NOV
12...	133	3	119	<0.17	4.6	184	569	0.77	220	--	0.11	0.22	E.010
DEC
17...	146	--	150	<0.17	5.6	196	637	0.87	210	--	0.14	0.18	E.014
JAN
15...	147	2	156	0.18	6.1	215	675	0.92	174	--	0.14	0.20	0.025
FEB
19...	128	7	169	0.18	4.1	219	706	0.96	164	--	0.22	0.26	0.038
MAR
26...	135	4	133	0.18	6.2	185	600	0.82	237	--	0.27	0.63	0.059
APR
15...	99	2	48.9	0.11	6.7	77.9	281	0.38	319	--	0.24	1.5	0.062
MAY
20...	47	--	9.30	<0.2	6.5	29.5	111	0.15	503	--	0.19	0.63	E.012
JUN
05...	60	--	6.45	<0.2	5.5	22.6	100	0.14	812	28	0.14	0.23	<0.015
JUL
23...	112	4	55.7	<0.2	5.4	106	345	0.47	313	--	0.19	0.19	0.021
AUG
12...	132	--	94.4	<0.2	7.4	168	512	0.70	299	442	0.20	1.3	0.030
SEP
09...	137	--	68.0	<0.2	7.1	151	447	0.61	368	--	0.13	7.0	0.037

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

Date	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)	Ortho- phos- phate, water, fltrd, mg/L as P (00671)	Phos- phorus, water, fltrd, mg/L (00666)	Phos- phorus, water, unfltrd mg/L (00665)	Organic carbon, water, fltrd, mg/L (00681)	E coli, m-TEC MF, water, col/ 100 mL (31633)	Fecal coli- form, M-FC 0.7u MF col/ 100 mL (31625)
OCT
23...	0.351	0.014	--	0.007	0.012	0.029	--	--	--
NOV
12...	0.484	0.065	--	0.015	0.023	0.046	2.0	E2	E2
DEC
17...	1.03	0.024	--	0.057	0.066	0.085	--	--	--
JAN
15...	1.40	0.032	0.12	0.110	0.120	0.137	--	--	--
FEB
19...	1.31	0.017	0.18	0.127	0.150	0.173	--	E1	<1
MAR
26...	1.15	0.024	0.21	0.122	0.134	0.27	--	--	--
APR
15...	0.667	0.014	0.18	0.031	0.040	0.56	3.2	E14	33
MAY
20...	0.279	0.003	--	0.007	0.013	0.190	--	E30	28
JUN
05...	0.138	0.004	--	E.004	0.009	0.056	3.4	E10	--
JUL
23...	0.300	0.006	0.17	0.022	0.032	0.045	--	--	--
AUG
12...	0.659	0.008	0.17	0.032	0.043	0.46	1.9	E3	250
SEP
09...	0.586	0.006	0.09	0.014	0.022	2.55	--	--	--
< -- 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	Arsenic water, fltrd, ug/L (01000)	Arsenic water unfltrd ug/L (01002)	Barium, water, fltrd, ug/L (01005)	Beryll- ium, water, fltrd, ug/L (01010)	Cadmium water, fltrd, ug/L (01025)	Cadmium water, unfltrd ug/L (01027)	Chrom- ium, water, fltrd, ug/L (01030)	Chrom- ium, water, unfltrd recover -able, ug/L (01034)	Copper, water, fltrd, ug/L (01040)	Copper, water, unfltrd recover -able, ug/L (01042)	Iron, water, fltrd, ug/L (01046)	Iron, water, unfltrd recover -able, ug/L (01045)	Lead, water, fltrd, ug/L (01049)
OCT
23...	--	--	--	--	--	--	--	--	--	--	26	--	--
NOV
12...	--	--	--	--	<0.2	--	--	--	E.9	--	30	160	<1
DEC
17...	--	--	--	--	--	--	--	--	--	--	14	--	--
JAN
15...	--	--	--	--	--	--	--	--	--	--	<10	--	--
FEB
19...	--	--	--	--	--	--	--	--	--	--	E9	--	--
MAR
26...	--	--	--	--	--	--	--	--	--	--	<10	--	--
APR
15...	--	--	--	--	<0.2	--	--	--	1.3	--	56	6,450	<1
MAY
20...	--	--	--	--	--	--	--	--	--	--	41	--	--
JUN
05...	<2	<2	36.3	<0.4	<0.2	E.1	<0.8	1.1	E.9	1.8	29	--	<1
JUL
23...	--	--	--	--	--	--	--	--	--	--	49	--	--
AUG
12...	<2	3	83.1	<0.4	<0.2	1.8	<0.8	2.4	1.5	7.9	E4	--	<1
SEP
09...	--	--	--	--	--	--	--	--	--	--	<8	--	--

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

Date	Lead, water, unfltrd recover -able, ug/L (01051)	Mangan- ese, water, fltrd, ug/L (01056)	Mangan- ese, water, unfltrd recover -able, ug/L (01055)	Mercury water, fltrd, ug/L (71890)	Mercury water, unfltrd recover -able, ug/L (71900)	Nickel, water, fltrd, ug/L (01065)	Nickel, water, unfltrd recover -able, ug/L (01067)	Selen- ium, water, fltrd, ug/L (01145)	Selen- ium, water, unfltrd ug/L (01147)	Silver, water, fltrd, ug/L (01075)	Silver, water, unfltrd recover -able, ug/L (01077)	Zinc, water, fltrd, ug/L (01090)	Zinc, water, unfltrd recover -able, ug/L (01092)
OCT
23...	--	25.6	--	--	--	--	--	--	--	--	--	--	--
NOV
12...	--	22.8	30.1	<0.02	--	--	--	<3	--	<0.3	--	<24	--
DEC
17...	--	24.2	--	--	--	--	--	--	--	--	--	--	--
JAN
15...	--	22.3	--	--	--	--	--	--	--	--	--	--	--
FEB
19...	--	33.3	--	--	--	--	--	--	--	--	--	--	--
MAR
26...	--	31.7	--	--	--	--	--	--	--	--	--	--	--
APR
15...	--	71.0	289	<0.02	--	--	--	<3	--	<0.3	--	E13	--
MAY
20...	--	19.2	--	--	--	--	--	--	--	--	--	--	--
JUN
05...	3	17.6	--	<0.02	<0.02	<2.0	<2.0	<3	<3	<0.3	<0.3	7	40
JUL
23...	--	23.5	--	--	--	--	--	--	--	--	--	--	--
AUG
12...	6	17.1	--	<0.02	0.02	<2.0	15.1	<3	<3	<0.3	<0.3	4	20
SEP
09...	--	8.5	--	--	--	--	--	--	--	--	--	--	--
< -- Actual value is known to be less than the value shown. E -- Estimated laboratory analysis value.

SUSPENDED SEDIMENT DISCHARGE, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

Date	Time	Instan- taneous dis- charge, cfs (00061)	Temper- ature, water, deg C (00010)	Suspnd. sedi- ment, sieve diametr percent <.063mm (70331)	Sus- pended sedi- ment concen- tration mg/L (80154)	Sus- pended sedi- ment load, tons/d (80155)
NOV
12...	1145	143	2.5	--	7	2.9
FEB
19...	1200	86	2.8	--	5	1.2
APR
15...	1200	420	8.4	97	421	477
MAY
20...	1315	1,680	9.6	78	158	717
JUN
05...	1345	3,020	11.7	54	79	644
AUG
12...	1220	216	20.2	100	456	266