385325106581200 WASHINGTON GULCH BELOW WOODS CREEK AT MT. CRESTED BUTTE, CO

GUNNISON RIVER BASIN

385325106581200 WASHINGTON GULCH BELOW WOODS CREEK AT MT. CRESTED BUTTE, CO

WATER-QUALITY RECORDS

LOCATION.--Lat 38°53'25", long 106°58'12", in SW14 SE14 sec.26, T.13 S., R.86 W., Gunnison County, Hydrologic Unit 14020001, 50 ft downstream
from confluence with Woods Creek, and 0.2 mi south of Mt. Crested Butte.

DRAINAGE AREA.--Not determined.

PERIOD OF RECORD--November 2000 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=385325106581200

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)

E coli,
m-TEC
MF,
water,
col/
100 mL
(31633)

OCT

22...

0840

0.50

9.9

8.1

282

2.0

0.22

0.018

0.744

0.009

0.170

0.23

E57

DEC

03...

1230

1.8

10.0

8.0

244

2.0

0.20

<0.015

0.218

E.002

0.063

0.101

E9

FEB

10...

1430

2.3

10.0

8.1

273

1.4

0.37

0.029

2.01

0.027

0.641

0.77

E8

APR

14...

1520

26

9.8

7.7

202

2.7

1.7

0.023

1.09

0.005

0.010

0.46

<1

JUN

16...

1440

11

7.2

8.0

143

13.4

0.23

<0.015

0.471

E.002

0.061

0.097

E3

AUG

25...

1430

2.5

6.8

8.2

236

16.4

0.36

<0.015

0.988

E.002

0.753

0.86

23

< -- 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)

Biomass
peri-
phyton,
ashfree
drymass
g/m2
(49954)

AUG

25...

1440

1,700

1,727

11,400

1.5

2.1

<24.300

< -- Actual value is known to be less than the value shown.

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)	E coli, m-TEC MF, water, col/ 100 mL (31633)
OCT
22...	0840	0.50	9.9	8.1	282	2.0	0.22	0.018	0.744	0.009	0.170	0.23	E57
DEC
03...	1230	1.8	10.0	8.0	244	2.0	0.20	<0.015	0.218	E.002	0.063	0.101	E9
FEB
10...	1430	2.3	10.0	8.1	273	1.4	0.37	0.029	2.01	0.027	0.641	0.77	E8
APR
14...	1520	26	9.8	7.7	202	2.7	1.7	0.023	1.09	0.005	0.010	0.46	<1
JUN
16...	1440	11	7.2	8.0	143	13.4	0.23	<0.015	0.471	E.002	0.061	0.097	E3
AUG
25...	1430	2.5	6.8	8.2	236	16.4	0.36	<0.015	0.988	E.002	0.753	0.86	23
< -- 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)	Biomass peri- phyton, ashfree drymass g/m2 (49954)
AUG
25...	1440	1,700	1,727	11,400	1.5	2.1	<24.300
< -- Actual value is known to be less than the value shown.

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U.S. Geological Survey
Water Resources of Colorado
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Last Modified: April 29, 2004