GREEN RIVER BASIN

09247600 YAMPA RIVER BELOW CRAIG, CO-Continued

WATER-QUALITY RECORDS

PERIOD OF RECORD.--June 1975 to September 1980, October 1990 to current year. For a complete listing of historical data available for this site,
see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09247600

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...	1300	150	10.2	8.4	352	4.1	120	30.7	10.6	2.20	1	25.5	E110
FEB
19...	1023	216	10.8	8.0	402	0.1	140	35.7	13.2	2.61	1	27.4	E139
MAY
21...	0925	5,840	9.3	7.8	146	9.0	56	14.3	4.96	1.19	0.3	5.70	42
AUG
19...	1530	147	7.9	8.7	355	22.0	130	31.1	12.2	2.46	1	25.3	108

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, 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)	Phos- phorus, water, unfltrd mg/L (00665)
OCT
30...	11.7	0.2	2.2	50.1	--	--	--	0.25	<0.04	<0.06	<0.008	E.01	0.023
FEB
19...	14.1	0.24	7.4	65.6	--	--	--	0.33	<0.04	0.31	<0.008	<0.02	0.036
MAY
21...	2.11	<0.2	9.2	21.6	86	0.12	1,360	0.67	<0.04	0.37	E.004	<0.02	0.21
AUG
19...	9.89	0.2	1.5	53.2	201	0.27	79.7	0.42	<0.04	<0.06	<0.008	<0.02	0.033

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

Date	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)	Zinc, water, fltrd, ug/L (01090)
OCT
30...	E3	E6	<0.2	<1.2	160	<1	13.4	22.0	<0.02	<3	<0.3	<24
FEB
19...	E6	E4	<0.2	E.6	160	<1	28.1	32.8	<0.02	<3	<0.3	<24
MAY
21...	25	31	<0.2	E.8	3,430	<1	9.4	120	<0.02	<3	<0.3	<24
AUG
19...	24	22	<0.2	<1.2	130	<1	7.7	38.7	<0.02	<3	<0.3	<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)
NOV						AUG
06...	1020	141	365	1.3		05...	1350	128	327	24.8
MAR						SEP
11...	1315	215	585	0.6		04...	1300	69	446	22.7
APR
08...	1430	622	635	8.0
30...	1100	3,910	296	8.5