09114500 GUNNISON RIVER NEAR GUNNISON, CO-Continued
WATER-QUALITY RECORDS
PERIOD OF RECORD--April 1995 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09114500
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)
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)
BOD, water, unfltrd 5 day, 20 degC mg/L (00310)
OCT
17...
0830
223
9.8
8.2
257
3.5
E.08
<0.015
<0.022
<0.002
<0.007
0.005
<2.0
DEC
04...
1430
173
13.0
8.4
250
1.5
E.09
<0.015
E.019
<0.002
<0.007
0.009
<2.0
FEB
12...
1500
183
11.6
8.4
213
0.1
0.14
<0.015
<0.022
<0.002
<0.007
0.011
<2.0
APR
16...
1420
311
9.7
8.8
213
10.1
0.22
<0.015
0.108
E.002
<0.007
0.027
<2.0
JUN
18...
1505
1,410
8.6
8.4
223
14.5
0.17
<0.015
<0.022
<0.002
<0.007
0.018
<2.0
AUG
28...
1530
424
7.7
8.5
210
17.0
0.15
<0.015
E.021
<0.002
<0.007
0.019
<2.0
WATER-QUALITY DATA, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
Date
E coli, m-TEC MF, water, col/ 100 mL (31633)
OCT
17...
E4
DEC
04...
<1
FEB
12...
<1
APR
16...
<1
JUN
18...
50
AUG
28...
82
< -- 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
Time
Peri- phyton biomass ash weight, g/m2 (00572)
Peri- phyton biomass dry weight, g/m2 (00573)
Biomass chloro- phyll ratio, peri- phyton, number (70950)
Pheo- phytin a, peri- phyton, mg/m2 (62359)
Chloro- phyll a peri- phyton, chromo- fluoro, mg/m2 (70957)
