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.