GUNNISON RIVER BASIN

CURECANTI WATER-QUALITY NETWORK-Continued

382856107050000 BLUE MESA RESERVOIR BELOW HIGHWAY 149 NEAR GUNNISON, CO

WATER-QUALITY RECORDS

LOCATION.--Lat 38°28'56", long 107°05'00", in NW14NE14 sec.28, T.49 N., R.2 W., Gunnison County,Hydrologic Unit 14020002, 1.4 mi downstream of U.S. Highway 149 bridge over Blue Mesa Reservoir, and 10.0 mi southwest of Gunnison.

PERIOD OF RECORD.--For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=382856107050000

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

Date	Time	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)	Ortho- phos- phate, water, fltrd, mg/L as P (00671)
APR
17...	0845	8.4	8.3	239	7.8	110	32.8	7.14	0.40	E.013	0.029	<0.002	E.005
JUL
02...	0930	6.7	8.2	230	18.2	110	32.9	6.70	0.24	<0.015	<0.022	<0.002	<0.007
21...	0847	6.4	8.2	244	19.9	120	34.9	7.02	0.26	<0.015	<0.022	<0.002	E.005
AUG
14...	0957	6.7	8.7	245	20.4	120	37.9	7.31	0.37	<0.015	<0.022	<0.002	<0.007
26...	0835	7.4	8.5	236	19.1	110	33.9	7.15	0.25	<0.015	<0.022	<0.002	<0.007
SEP
09...	0843	7.3	8.7	236	17.9	120	34.7	7.29	0.51	<0.015	<0.022	<0.002	<0.007

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

Date	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)
APR
17...	0.051	<0.04	0.7	E.06	32.7	<0.5	<0.2	M
JUL
02...	0.028	<0.04	0.8	<0.08	22.5	E.3	<0.2	1
21...	0.022	<0.04	0.8	<0.08	1.5	<0.5	<0.2	M
AUG
14...	0.023	<0.04	0.8	<0.08	7.2	<0.5	<0.2	<1
26...	0.014	<0.04	0.9	<0.08	0.9	<0.5	<0.2	M
SEP
09...	0.021	<0.04	1.0	<0.08	1.1	<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.