09034250 COLORADO RIVER AT WINDY GAP NEAR GRANBY, CO-Continued

COLORADO RIVER MAIN STEM

09034250 COLORADO RIVER AT WINDY GAP NEAR GRANBY, CO-Continued

WATER-QUALITY RECORDS

PERIOD OF RECORD.--December 1994 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09034250

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)

ANC,
wat unf
fixed
end pt,
lab,
mg/L as
CaCO3
(90410)

OCT

08...

1400

59

11.1

9.5

138

13.0

55

17.0

2.95

1.43

0.4

6.39

E63

MAR

12...

1230

99

10.2

8.3

161

0.5

58

18.0

3.27

--

0.5

8.72

60

AUG

20...

1300

161

7.4

8.3

145

16.5

54

16.7

2.93

--

0.4

6.12

62

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
total
at 105
deg. C,
sus-
pended,
mg/L
(00530)

Ammonia
+
org-N,
water,
fltrd,
mg/L
as N
(00623)

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)

Organic
nitro-
gen,
water,
fltrd,
mg/L
(00607)

Ortho-
phos-
phate,
water,
fltrd,
mg/L
as P
(00671)

Phos-
phorus,
water,
fltrd,
mg/L
(00666)

OCT

08...

3.25

0.21

7.9

4.5

<10

0.23

0.29

<0.04

<0.06

<0.008

--

E.02

E.03

MAR

12...

8.10

--

11.5

7.0

<10

0.35

1.9

0.13

0.54

E.007

0.22

0.05

0.07

AUG

20...

3.94

--

11.8

4.8

<10

0.34

0.45

0.05

0.07

E.005

0.30

0.03

0.05

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

Date

Phos-
phorus,
water,
unfltrd
mg/L
(00665)

Anti-
mony,
water,
fltrd,
ug/L
(01095)

Arsenic
water,
fltrd,
ug/L
(01000)

Arsenic
water
unfltrd
ug/L
(01002)

Barium,
water,
fltrd,
ug/L
(01005)

Beryll-
ium,
water,
fltrd,
ug/L
(01010)

Cadmium
water,
fltrd,
ug/L
(01025)

Cadmium
water,
unfltrd
ug/L
(01027)

Chrom-
ium,
water,
fltrd,
ug/L
(01030)

Chrom-
ium,
water,
unfltrd
recover
-able,
ug/L
(01034)

Copper,
water,
fltrd,
ug/L
(01040)

Copper,
water,
unfltrd
recover
-able,
ug/L
(01042)

Iron,
water,
fltrd,
ug/L
(01046)

OCT

08...

E.04

<0.30

<2

<2

11.1

<0.5

<0.2

<0.2

<0.8

<0.8

0.7

<0.6

137

MAR

12...

0.10

<0.30

<2

<2

19.2

<0.5

<0.2

<0.2

<0.8

<0.8

0.9

1.3

72

AUG

20...

0.09

<0.30

<2

E1

17.4

<0.4

<0.2

<0.2

E.6

<0.8

1.3

1.7

203

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

Date

Lead,
water,
fltrd,
ug/L
(01049)

Lead,
water,
unfltrd
recover
-able,
ug/L
(01051)

Mangan-
ese,
water,
fltrd,
ug/L
(01056)

Mercury
water,
fltrd,
ug/L
(71890)

Mercury
water,
unfltrd
recover
-able,
ug/L
(71900)

Nickel,
water,
fltrd,
ug/L
(01065)

Nickel,
water,
unfltrd
recover
-able,
ug/L
(01067)

Selen-
ium,
water,
fltrd,
ug/L
(01145)

Selen-
ium,
water,
unfltrd
ug/L
(01147)

Silver,
water,
fltrd,
ug/L
(01075)

Silver,
water,
unfltrd
recover
-able,
ug/L
(01077)

Zinc,
water,
fltrd,
ug/L
(01090)

Zinc,
water,
unfltrd
recover
-able,
ug/L
(01092)

OCT

08...

<0.08

0.09

20.8

<0.02

<0.02

0.36

0.95

<0.5

<0.5

<0.2

<0.16

M

E1

MAR

12...

<0.08

0.16

85.6

<0.02

<0.02

1.24

0.86

<0.5

<0.5

E.2

<0.16

2

3

AUG

20...

0.11

0.28

79.2

<0.02

<0.02

1.06

1.26

<0.5

E.3

<0.2

<0.16

2

4

< -- Actual value is known to be less than the value shown.
E -- Estimated laboratory analysis value.
M -- Presence of material verified but not quantified.

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)

FEB

APR

26...

1000

72

115

4.0

17...

1350

121

204

7.0

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)	ANC, wat unf fixed end pt, lab, mg/L as CaCO3 (90410)
OCT
08...	1400	59	11.1	9.5	138	13.0	55	17.0	2.95	1.43	0.4	6.39	E63
MAR
12...	1230	99	10.2	8.3	161	0.5	58	18.0	3.27	--	0.5	8.72	60
AUG
20...	1300	161	7.4	8.3	145	16.5	54	16.7	2.93	--	0.4	6.12	62

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 total at 105 deg. C, sus- pended, mg/L (00530)	Ammonia + org-N, water, fltrd, mg/L as N (00623)	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)	Organic nitro- gen, water, fltrd, mg/L (00607)	Ortho- phos- phate, water, fltrd, mg/L as P (00671)	Phos- phorus, water, fltrd, mg/L (00666)
OCT
08...	3.25	0.21	7.9	4.5	<10	0.23	0.29	<0.04	<0.06	<0.008	--	E.02	E.03
MAR
12...	8.10	--	11.5	7.0	<10	0.35	1.9	0.13	0.54	E.007	0.22	0.05	0.07
AUG
20...	3.94	--	11.8	4.8	<10	0.34	0.45	0.05	0.07	E.005	0.30	0.03	0.05

WATER-QUALITY DATA, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
Date	Phos- phorus, water, unfltrd mg/L (00665)	Anti- mony, water, fltrd, ug/L (01095)	Arsenic water, fltrd, ug/L (01000)	Arsenic water unfltrd ug/L (01002)	Barium, water, fltrd, ug/L (01005)	Beryll- ium, water, fltrd, ug/L (01010)	Cadmium water, fltrd, ug/L (01025)	Cadmium water, unfltrd ug/L (01027)	Chrom- ium, water, fltrd, ug/L (01030)	Chrom- ium, water, unfltrd recover -able, ug/L (01034)	Copper, water, fltrd, ug/L (01040)	Copper, water, unfltrd recover -able, ug/L (01042)	Iron, water, fltrd, ug/L (01046)
OCT
08...	E.04	<0.30	<2	<2	11.1	<0.5	<0.2	<0.2	<0.8	<0.8	0.7	<0.6	137
MAR
12...	0.10	<0.30	<2	<2	19.2	<0.5	<0.2	<0.2	<0.8	<0.8	0.9	1.3	72
AUG
20...	0.09	<0.30	<2	E1	17.4	<0.4	<0.2	<0.2	E.6	<0.8	1.3	1.7	203

WATER-QUALITY DATA, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
Date	Lead, water, fltrd, ug/L (01049)	Lead, water, unfltrd recover -able, ug/L (01051)	Mangan- ese, water, fltrd, ug/L (01056)	Mercury water, fltrd, ug/L (71890)	Mercury water, unfltrd recover -able, ug/L (71900)	Nickel, water, fltrd, ug/L (01065)	Nickel, water, unfltrd recover -able, ug/L (01067)	Selen- ium, water, fltrd, ug/L (01145)	Selen- ium, water, unfltrd ug/L (01147)	Silver, water, fltrd, ug/L (01075)	Silver, water, unfltrd recover -able, ug/L (01077)	Zinc, water, fltrd, ug/L (01090)	Zinc, water, unfltrd recover -able, ug/L (01092)
OCT
08...	<0.08	0.09	20.8	<0.02	<0.02	0.36	0.95	<0.5	<0.5	<0.2	<0.16	M	E1
MAR
12...	<0.08	0.16	85.6	<0.02	<0.02	1.24	0.86	<0.5	<0.5	E.2	<0.16	2	3
AUG
20...	0.11	0.28	79.2	<0.02	<0.02	1.06	1.26	<0.5	E.3	<0.2	<0.16	2	4
< -- Actual value is known to be less than the value shown. E -- Estimated laboratory analysis value. M -- Presence of material verified but not quantified.

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)
FEB						APR
26...	1000	72	115	4.0		17...	1350	121	204	7.0

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