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USGS
Water Resources of Colorado

PLATTE RIVER BASIN

06752258 CACHE LA POUDRE RIVER AT SHIELDS STREET, AT FORT COLLINS, CO

WATER-QUALITY RECORDS

LOCATION.--Lat 40°36'11", long 105°05'43", in NE14SE14 sec.3, T.7 N., R.69 W., Larimer County, Hydrologic Unit 10190007, at Shields Street bridge,
0.8 mi downstream from Larimer-Weld Canal, and 1.0 mi northwest of Fort Collins.

DRAINAGE AREA.--1,119 mi2.

PERIOD OF RECORD.--October 1979 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=06752258

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)
Sodium
adsorp-
tion
ratio
(00931)
Sodium,
water,
fltrd,
mg/L
(00930)
ANC,
wat unf
fixed
end pt,
lab,
mg/L as
CaCO3
(90410)
Chlor-
ide,
water,
fltrd,
mg/L
(00940)
OCT
17...
0845
4.5
10.3
8.4
446
8.5
210
59.1
15.0
--
--
E151
--
NOV
15...
1025
1.1
8.4
7.5
463
6.0
230
61.6
18.2
--
--
172
--
DEC
17...
0845
20
11.2
8.6
428
2.0
210
60.9
13.9
--
--
E146
--
JAN
29...
1320
8.7
12.1
8.6
453
4.0
220
62.9
14.5
0.3
9.74
144
3.53
FEB
27...
0845
7.2
11.4
8.4
456
1.0
220
65.0
14.7
--
--
E163
--
APR
03...
1100
2.9
8.7
7.7
534
10.5
250
67.6
19.1
--
--
145
--
29...
0930
7.5
9.1
8.3
262
12.5
110
29.1
8.86
--
--
88
--
MAY
20...
1220
178
10.2
8.5
128
9.0
51
15.0
3.33
--
--
45
--
JUL
02...
0915
462
8.3
7.8
65
16.0
26
7.58
1.74
--
--
25
--
15...
1345
22
7.9
8.6
126
20.5
50
14.1
3.68
0.3
4.10
46
1.88
AUG
05...
1315
49
8.1
8.3
105
21.5
47
14.0
2.98
--
--
38
--
SEP
17...
1450
29
9.8
8.5
204
17.0
87
25.6
5.69
--
--
71
--

WATER-QUALITY DATA, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
Date
Fluor-
ide,
water,
fltrd,
mg/L
(00950)
Silica,
water,
fltrd,
mg/L
(00955)
Sulfate
water,
fltrd,
mg/L
(00945)
Residue
on
evap.
at
180degC
wat flt
mg/L
(70300)
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,
fltrd,
mg/L
(00666)
Alum-
inum,
water,
fltrd,
ug/L
(01106)
Arsenic
water,
fltrd,
ug/L
(01000)
Cadmium
water,
fltrd,
ug/L
(01025)
Chrom-
ium,
water,
fltrd,
ug/L
(01030)
OCT
17...
--
--
--
--
<0.04
<0.022
<0.008
<0.02
<0.04
--
--
--
--
NOV
15...
--
--
--
--
<0.04
<0.022
<0.008
<0.02
<0.04
--
--
--
--
DEC