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USGS
Water Resources of Colorado


ARKANSAS RIVER BASIN

07103985 COTTONWOOD CREEK TRIBUTARY ABOVE RANGEWOOD DRIVE AT COLORADO SPRINGS, CO-Continued

WATER-QUALITY RECORDS

PERIOD OF RECORD.--April 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=07103985

PERIOD OF DAILY RECORD.--

SUSPENDED SEDIMENT: April 1998 to October 2002 (seasonal records only) (discontinued).

INSTRUMENTATION.--Pumping sediment sampler with satellite telemetry.

EXTREMES FOR PERIOD OF RECORD.--

SEDIMENT CONCENTRATION (seasonal only): Maximum daily mean, 8,990 mg/L, Apr. 30, 1999; minimum daily mean, 1 mg/L, June 11, Sept. 24-25, 2002.

SUSPENDED-SEDIMENT DISCHARGE (seasonal only): Maximum daily, 1,250 tons, June 7, 2001; minimum daily, 0.0 ton, on many days (some estimated) in 1999, 2000, 2002, and 2003.

EXTREMES FOR CURRENT YEAR.--

SEDIMENT CONCENTRATION (seasonal only): Maximum daily mean during October, 40 mg/L, Oct. 27; minimum daily mean, 1 mg/L, Oct. 10, 12, 17.

SUSPENDED-SEDIMENT DISCHARGE (seasonal only): Maximum daily during October, 0.68 ton, Oct. 26; minimum daily, 0.0 ton, on many days (some estimated).

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
water,
fltrd,
mg/L
as N
(00608)
Nitrite
+
nitrate
water
fltrd,
mg/L
as N
(00631)
Ortho-
phos-
phate,
water,
fltrd,
mg/L
as P
(00671)
Phos-
phorus,
water,
unfltrd
mg/L
(00665)
E coli,
modif.
m-TEC,
water,
col/
100 mL
(90902)
E coli,
m-TEC
MF,
water,
col/
100 mL
(31633)
Fecal
coli-
form,
M-FC
0.7u MF
col/
100 mL
(31625)
NOV
06...
1200
e0.60
9.1
8.4
1,120
11.0
0.022
6.28
0.02
0.04
--
E20
E10
JUN
24...
1145
1.1
6.9
8.3
1,080
20.0
0.108
5.45
0.02
0.07
E230
--
E270

WATER-QUALITY DATA, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
Date
Sus-
pended
sedi-
ment
concen-
tration
mg/L
(80154)
Sus-
pended
sedi-
ment
load,
tons/d
(80155)
NOV
06...
2
E.00
JUN
24...
83
0.24

e -- Estimated.
E -- Estimated laboratory analysis value.

WATER-QUALITY DATA DURING STORMWATER-RUNOFF SAMPLING, 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
water,
fltrd,
mg/L
as N
(00608)
Nitrite
+
nitrate
water
fltrd,
mg/L
as N
(00631)
Ortho-
phos-
phate,
water,
fltrd,
mg/L
as P
(00671)
Phos-
phorus,
water,
unfltrd
mg/L
(00665)
E coli,
modif.
m-TEC,
water,
col/
100 mL
(90902)
Fecal
coli-
form,
M-FC
0.7u MF
col/
100 mL
(31625)
Sus-
pended
sedi-
ment
concen-
tration
mg/L
(80154)
JUN
12...
1655
31
7.1
8.0
150
16.5
0.556
0.93
0.12
0.67
2,800
4,100
765

WATER-QUALITY DATA DURING STORMWATER-RUNOFF SAMPLING, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
Date
Sus-
pended
sedi-
ment
load,
tons/d
(80155)
JUN
12...
64

MISCELLANEOUS FIELD AND SUSPENDED-SEDIMENT DISCHARGE DATA, 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)
Sus-
pended
sedi-
ment
concen-
tration
mg/L
(80154)
Sus-
pended
sedi-
ment
load,
tons/d
(80155)
OCT
22...
1100
0.62
1,070
11.5
0.0
0.00
NOV
05...
0845
0.61
1,110
4.5
8
0.01
06...
1200
e0.60
1,120
11.0
2
e0.00
JUN
12...
1655
31
150
16.5
765
64
24...
1145
1.1
1,080
20.0
83
0.24

e -- Estimated.

SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY) 
WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
Day
Mean
discharge
(cfs)
Mean
concen-
tration
(mg/l)
Load
(tons/
day)
           OCTOBER          
1

0.85

---

e0.18

2

0.87

18

0.09

3

0.67

---

e0.03

4

0.54

2

0.00

5

0.58

---

e0.00

6

0.55

---

e0.00

7

0.56

---

e0.00

8

0.59

---

e0.00

9

0.61

---

e0.00

10

0.60

1

0.00

11

0.57

---

e0.00

12

0.55

1

0.00

13

0.56

---

e0.00

14

0.56

---

e0.00

15

0.56

---

e0.00

16

0.61

---

e0.00

17

0.61

1

0.00

18

0.61

---

e0.00

19

0.61

---

e0.00

20

0.61

---

e0.00

21

0.60

---

e0.00

22

0.77

11

0.06

23

0.72

---

e0.04

24

0.63

---

e0.00

25

0.64

---

e0.00

26

2.1

26

0.68

27

1.0

40

0.24

28

0.61

---

e0.02

29

0.61

---

e0.02

30

0.61

---

e0.01

31

0.67

---

e0.01

TOTAL

21.23

---

1.38

e Estimated.


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U.S. Geological Survey
Water Resources of Colorado
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Last Modified: April 28, 2004