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USGS
Water Resources of Colorado

PLATTE RIVER BASIN

402231105291900 LAKE ESTES NEAR DAM NEAR ESTES PARK, CO

WATER-QUALITY RECORDS

LOCATION.--Lat. 40°22'31", long 105°29'19", in SE14 NW14 sec.29, T.5 N., R.72 W., Larimer County, Hydrologic Unit 14010001, 1 mi southeast of Estes Park.

PERIOD OF RECORD.--May 1998 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=402231105291900

REMARKS.--Samples were collected near-surface and near-bottom at estimated deepest point near Olympus Dam.

WATER-QUALITY DATA, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
Date
Time
Sam-
pling
depth,
feet
(00003)
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)
NOV
07...
1103
0.50
9.2
6.9
52
3.5
07...
1104
5.00
9.1
6.9
52
3.4
07...
1105
10.0
9.1
6.9
52
3.4
07...
1106
15.0
9.1
6.9
51
3.4
07...
1107
20.0
9.0
6.9
51
3.4
07...
1108
25.0
9.0
6.9
51
3.4
MAY
16...
0927
0.50
8.8
7.2
68
9.9
16...
0928
5.00
8.7
7.2
68
9.9
16...
0929
10.0
8.6
7.2
68
9.8
16...
0930
15.0
8.6
7.2
68
9.8
16...
0931
20.0
8.5
7.2
67
9.6
16...
0932
25.0
8.2
7.0
71
8.4
16...
0933
30.0
7.9
6.9
72
8.0
AUG
28...
0930
0.50
7.0
6.8
44
16.8
28...
0931
5.00
6.7
6.8
39
16.5
28...
0932
10.0
6.6
6.8
38
16.4
28...
0933
15.0
6.6
6.8
37
16.4
28...
0934
20.0
6.3
6.8
36
16.2
28...
0935
25.0
6.2
6.8
36
16.2
28...
0936
30.0
4.1
6.8
30
14.6

WATER-QUALITY DATA, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
Date
Time
Sam-
pling
depth,
feet
(00003)
Trans-
parency
Secchi
disc,
inches
(00077)
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)
NOV
07...
1115
0.10
84.0
9.2
6.9
52
3.5
21
6.44
1.26
0.61
0.2
2.53
07...
1120
22.0
--
9.0
6.9
51
3.4
21
6.44
1.26
0.64
0.2
2.54
MAY
16...
0945
0.10
61.0
8.8
7.2
68
9.9
25
7.18
1.78
0.84
0.4
4.11
16...
1000
30.0
--
7.9
6.9
72
8.0
26
7.55
1.83
0.93
0.4
4.40
AUG
28...
0950
0.10
76.0
7.0
6.8
44
16.8
--
--
--
--
28...
1000
30.0
--
4.1
6.8
30
14.6
--
--
--
--

WATER-QUALITY DATA, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
Date
ANC,
wat unf
fixed
end pt,
lab,
mg/L as
CaCO3
(90410)
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
water,
fltrd,
sum of
consti-
tuents
mg/L
(70301)
Residue
water,
fltrd,
tons/
acre-ft
(70303)
Residue
on
evap.
at
180degC
wat flt
mg/L
(70300)
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)
NOV
07...
23
1.37
<0.17
3.84
2.8
33
0.04
28
0.26
0.034
0.088
0.003
<0.007
07...
23
1.43
<0.17
3.88
2.8
33
0.05
34
0.25
0.034
0.090
E.002
<0.007
MAY
16...
18
7.24
0.2
7.06
5.2
46
0.08
62
0.42
<0.015
0.173
0.005
<0.007
16...
19
7.23
0.2
7.11
5.4
47
0.08
58
0.35