GUNNISON RIVER BASIN

CURECANTI WATER-QUALITY NETWORK-Continued

381633107054700 CEBOLLA CREEK AT POWDERHORN, CO

WATER-QUALITY RECORDS

LOCATION.--Lat 38°16'33", long 107°05'47", in NE14NE14 sec.4, T.46 N., R.2 W., Gunnison County, Hydrologic Unit 14020002, on County Road 29, approximately 800 ft northeast of Cebolla Hot Springs, and 250 ft southwest of Powderhorn.

PERIOD OF RECORD.--For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=381633107054700

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)	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)
FEB
26...	1117	--	10.2	--	116	0.0	46	13.9	2.71	0.10	<0.015	<0.022	<0.002
APR
23...	1105	77	10.2	7.8	101	3.7	38	11.4	2.33	0.36	<0.015	0.029	E.002
JUN
18...	1440	39	7.2	7.6	183	17.1	75	22.2	4.83	0.29	<0.015	<0.022	<0.002
JUL
17...	1032	46	6.8	7.9	168	21.9	72	21.5	4.52	0.36	<0.015	<0.022	<0.002
AUG
06...	0850	44	7.4	8.0	146	13.1	61	18.9	3.41	0.19	<0.015	<0.022	<0.002
21...	1130	26	7.4	8.5	156	15.2	58	17.2	3.61	0.17	<0.015	<0.022	<0.002
SEP
03...	0900	45	8.0	7.8	167	11.8	71	22.1	3.72	0.15	<0.015	<0.022	<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, unfltrd mg/L (00665)	Cadmium water, fltrd, ug/L (01025)	Copper, water, fltrd, ug/L (01040)	Lead, water, fltrd, ug/L (01049)	Mangan- ese, water, fltrd, ug/L (01056)	Selen- ium, water, fltrd, ug/L (01145)	Silver, water, fltrd, ug/L (01075)	Zinc, water, fltrd, ug/L (01090)
FEB
26...	0.031	0.054	<0.04	0.3	<0.08	11.3	<0.5	<0.2	<1
APR
23...	0.040	0.089	<0.04	0.7	<0.08	18.6	<0.5	<0.2	<1
JUN
18...	0.031	0.058	<0.04	1.0	<0.08	48.5	<0.5	<0.2	M
JUL
17...	0.041	0.103	<0.04	0.8	<0.08	35.3	<0.5	<0.2	<1
AUG
06...	0.049	0.079	<0.04	0.6	<0.08	16.5	<0.5	<0.2	<1
21...	0.050	0.068	<0.04	0.5	<0.08	14.9	<0.5	<0.2	<1
SEP
03...	0.034	0.054	<0.04	0.5	<0.08	17.3	<0.5	<0.2	<1
< -- Actual value is known to be less than the value shown. E -- Estimated laboratory analysis value. M -- Presence of material verified but not quantified.