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USGS
Water Resources of Colorado

PLATTE RIVER BASIN

06752270 CACHE LA POUDRE RIVER BELOW FORT COLLINS, CO

WATER-QUALITY RECORDS

LOCATION.--Lat 40°34'01", long 105°01'36", in NW14NE14 sec.20, T.7 N., R.68 W., Larimer County, Hydrologic Unit 10190007, 1.4 mi west of
Interstate 25 on Prospect Street in Fort Collins.

DRAINAGE AREA.--1,240 mi2.

PERIOD OF RECORD.--January 1978 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=06752270

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...
1235
9.0
11.5
8.7
803
10.0
350
95.1
26.8
--
--
E200
--
NOV
15...
1410
3.1
14.4
8.6
1,230
8.0
590
159
47.7
--
--
233
--
DEC
17...
1200
3.5
13.4
8.2
1,120
3.5
550
149
42.3
--
--
E191
--
JAN
29...
1035
3.3
11.4
8.5
1,110
4.0
550
150
41.5
0.8
45.5
261
23.1
FEB
27...
1100
3.2
12.2
8.5
1,210
3.5
570
152
46.4
--
--
E225
--
APR
03...
1405
6.7
13.4
8.1
1,180
13.0
550
148
44.0
--
--
220
--
29...
1120
6.4
12.8
8.4
1,190
15.5
560
151
44.0
--
--
228
--
MAY
20...
1035
41
9.5
8.5
484
10.5
200
56.1
15.4
--
--
103
--
JUL
02...
1310
336
8.5
8.2
130
18.0
51
14.5
3.50
--
--
36
--
15...
1545
42
8.7
8.6
355
22.5
150
39.8
11.2
0.5
14.2
87
8.71
AUG
05...
1045
83
9.0
8.5
205
20.5
88
25.1
6.15
--
--
56
--
SEP
17...
1100
44
12.3
8.8
399
16.6
36
10.5
2.25
--
--
105
--

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
2.99
0.026
0.68
0.67
--
--
--
--
NOV
15...
--
--
--
--
<0.04
1.06
0.014
0.02
0.04
--
--
--
--
DEC