ARKANSAS RIVER BASIN

07124000 ARKANSAS RIVER AT LAS ANIMAS, CO-Continued

WATER-QUALITY RECORDS

PERIOD OF RECORD.--December 1985 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=07124000

PERIOD OF DAILY RECORD.--

SPECIFIC CONDUCTANCE: December 1985 to current year.

WATER TEMPERATURE: December 1985 to current year.

INSTRUMENTATION.--Water-quality monitor with satellite telemetry.

REMARKS.--Daily specific-conductance records are fair. Daily water-temperature records are good. Daily data that are not published are either missing or of unacceptable quality.

EXTREMES FOR PERIOD OF RECORD.--

SPECIFIC CONDUCTANCE: Maximum, 7,950 microsiemens/cm, Jan. 22, 1986; minimum, 310 microsiemens/cm, July 21, 1990.

WATER TEMPERATURE: Maximum, 35.3°C, July 8, 2002; minimum, 0.0°C, on many days.

EXTREMES FOR CURRENT YEAR.--

SPECIFIC CONDUCTANCE: Maximum, 3,530 microsiemens/cm, Apr. 23; minimum, 670 microsiemens/cm, June 5.

WATER TEMPERATURE: Maximum, 33.6°C, July 24; minimum, 0.0°C, on many days.

Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius 

WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

DAY	MAX	MIN	MEAN	MAX	MIN	MEAN	MAX	MIN	MEAN	MAX	MIN	MEAN
	OCTOBER			NOVEMBER			DECEMBER			JANUARY
1	3,150	2,890	3,090	3,300	3,250	3,270	2,390	2,200	2,310	2,100	1,880	1,960
2	3,120	3,080	3,100	3,310	3,290	3,300	2,450	2,070	2,310	2,260	2,100	2,200
3	3,120	3,080	3,100	3,340	3,300	3,310	2,470	2,280	2,420	2,320	2,060	2,230
4	3,130	3,080	3,100	3,330	3,290	3,310	2,430	2,220	2,400	2,420	2,230	2,350
5	3,120	3,090	3,110	3,360	3,320	3,330	2,550	2,310	2,450	2,500	2,170	2,410
6	3,130	3,100	3,110	3,350	2,990	3,300	2,500	2,170	2,340	2,510	2,180	2,450
7	3,110	3,060	3,100	3,310	3,290	3,300	2,340	2,170	2,280	2,480	2,280	2,370
8	3,120	3,070	3,100	3,310	3,050	3,290	2,340	2,220	2,300	2,390	2,330	2,370
9	3,160	3,120	3,130	3,280	2,900	3,120	2,340	2,280	2,320	2,330	2,190	2,240
10	3,180	3,140	3,160	3,380	2,730	3,250	2,320	2,050	2,240	2,310	2,230	2,270
11	3,200	3,160	3,180	3,320	3,060	3,290	2,250	2,140	2,210	2,390	2,260	2,350
12	3,210	3,180	3,190	3,320	3,040	3,260	2,300	2,170	2,280	2,400	2,340	2,380
13	3,270	3,170	3,200	3,310	3,140	3,280	2,320	2,230	2,290	2,380	2,200	2,330
14	3,240	3,160	3,210	3,260	3,140	3,230	2,300	2,270	2,290	2,320	2,160	2,260
15	3,250	3,200	3,220	3,140	2,380	2,610	2,350	2,280	2,320	2,270	2,210	2,240
16	3,240	3,200	3,220	2,600	2,400	2,490	2,330	2,220	2,310	2,390	2,250	2,330
17	3,240	3,190	3,220	2,780	2,500	2,620	2,330	2,130	2,300	2,400	2,170	2,370
18	3,270	3,180	3,230	2,830	2,730	2,790	2,320	2,200	2,300	2,420	2,360	2,400
19	3,260	3,220	3,240	2,730	2,330	2,500	2,330	2,060	2,220	2,440	2,360	2,410
20	3,280	3,230	3,260	2,420	2,320	2,400	2,400	2,150	2,310	2,420	2,280	2,400
21	3,280	3,240	3,260	2,440	2,240	2,410	2,440	2,210	2,360	2,400	2,370	2,390
22	3,290	3,150	3,240	2,560	2,370	2,470	2,450	2,250	2,390	2,480	2,370	2,400
23	3,250	3,120	3,210	2,560	2,390	2,530	2,330	2,160	2,290	2,590	2,460	2,530
24	3,290	3,130	3,220	2,510	2,350	2,470	2,350	2,170	2,310	2,500	2,270	2,420
25	3,300	3,250	3,280	2,460	2,390	2,440	2,520	2,320	2,420	2,410	2,190	2,340
26	3,300	3,030	3,270	2,520	2,400	2,470	2,610	2,430	2,520	2,320	2,240	2,280
27	3,270	3,030	3,210	2,550	2,300	2,470	2,610	2,380	2,500	2,300	2,180	2,230
28	3,310	3,270	3,290	2,570	2,370	2,500	2,480	2,320	2,400	2,230	2,050	2,200
29	3,310	3,180	3,270	2,510	2,200	2,450	2,340	2,140	2,260	2,270	2,040	2,220
30	3,290	3,200	3,260	2,480	2,300	2,430	2,140	1,930	2,060	2,320	2,270	2,300
31	3,280	3,250	3,270	---	---	---	1,970	1,700	1,910	2,390	2,270	2,330
MONTH	3,310	2,890	3,200	3,380	2,200	2,860	2,610	1,700	2,310	2,590	1,880	2,320
	FEBRUARY			MARCH			APRIL			MAY
1	2,420	2,280	2,380	2,330	2,230	2,290	3,290	3,230	3,260	3,320	3,180	3,210
2	2,420	2,260	2,390	2,420	2,290	2,350	3,330	3,250	3,280	3,230	3,040	3,160
3	2,370	2,260	2,350	2,440	2,370	2,410	3,350	3,290	3,320	3,230	3,150	3,190
4	2,420	2,210	2,360	2,450	2,390	2,430	3,330	3,270	3,300	3,220	3,150	3,190
5	2,410	2,280	2,330	2,530	2,350	2,470	3,310	3,220	3,290	3,220	3,100	3,170
6	2,340	2,240	2,320	2,550	2,380	2,470	3,300	3,190	3,250	3,210	3,100	3,160
7	2,500	2,280	2,390	2,500	2,250	2,400	3,300	3,260	3,280	3,210	3,140	3,180
8	2,610	2,330	2,510	2,390	2,220	2,340	3,330	3,250	3,280	3,230	3,160	3,190
9	2,610	2,410	2,480	2,360	2,290	2,320	3,330	3,220	3,300	3,200	3,150	3,180
10	2,620	2,320	2,450	2,320	2,290	2,310	3,350	3,220	3,310	3,190	3,140	3,160
11	2,360	2,230	2,280	2,360	2,310	2,330	3,350	3,110	3,300	3,180	2,930	3,090
12	2,270	2,200	2,240	2,370	2,320	2,350	3,360	3,200	3,330	3,250	2,180	2,970
13	2,420	2,230	2,340	2,400	2,330	2,360	3,380	3,120	3,340	3,120	2,950	3,000
14	2,430	2,330	2,380	2,470	2,280	2,400	3,370	3,250	3,340	3,240	2,200	2,880
15	2,410	2,330	2,360	2,980	2,450	2,630	3,350	3,210	3,310	3,240	2,620	2,980
16	2,420	2,350	2,380	3,060	2,930	3,020	3,360	3,140	3,310	2,990	2,880	2,930
17	2,460	2,390	2,440	3,060	2,500	2,690	3,370	3,300	3,340	3,120	2,970	3,030
18	2,450	2,260	2,420	3,180	2,680	3,070	3,370	3,170	3,340	3,120	2,970	3,040
19	2,390	2,180	2,290	3,150	2,910	3,030	3,350	3,130	3,290	3,150	2,490	2,970
20	2,300	2,170	2,240	3,180	3,080	3,150	3,380	3,240	3,310	2,880	2,410	2,660
21	2,390	2,230	2,300	3,210	3,150	3,180	3,400	3,220	3,350	3,110	2,880	2,990
22	2,460	2,370	2,420	3,240	3,160	3,200	3,430	3,270	3,340	3,170	2,930	3,060
23	2,480	2,430	2,460	3,250	3,200	3,220	3,530	2,660	3,290	3,180	2,860	3,010
24	2,740	2,450	2,560	3,240	3,150	3,210	3,240	2,480	2,790	2,920	2,590	2,760
25	2,720	2,520	2,670	3,240	3,140	3,200	3,390	3,240	3,330	2,950	2,360	2,670
26	2,660	2,410	2,530	3,250	3,190	3,230	3,390	3,250	3,350	2,430	2,140	2,380
27	2,550	2,310	2,460	3,270	3,220	3,250	3,360	3,270	3,330	---	---	---
28	2,340	1,880	2,210	3,280	3,230	3,260	3,350	3,210	3,280	---	---	---
29	---	---	---	3,280	3,220	3,260	3,270	3,160	3,230	1,650	1,150	1,280
30	---	---	---	3,290	3,240	3,260	3,240	3,180	3,210	1,230	1,050	1,110
31	---	---	---	3,280	3,240	3,260	---	---	---	1,050	975	1,000
MONTH	2,740	1,880	2,390	3,290	2,220	2,790	3,530	2,480	3,290	---	---	---
	JUNE			JULY			AUGUST			SEPTEMBER
1	998	860	931	975	727	858	1,490	1,360	1,430	2,000	1,960	1,990
2	963	843	886	1,080	975	1,050	1,450	1,310	1,360	1,960	1,710	1,910
3	974	846	940	1,190	1,080	1,150	1,630	1,450	1,540	1,710	1,290	1,500
4	846	748	798	1,250	1,180	1,210	---	---	---	1,790	1,290	1,560
5	748	670	697	1,300	1,240	1,270	---	---	---	1,860	1,620	1,760
6	809	717	754	1,340	1,220	1,270	2,430	2,260	2,340	1,800	1,610	1,680
7	863	809	829	1,440	1,340	1,390	2,550	2,290	2,430	1,940	1,800	1,850
8	991	863	917	1,640	1,410	1,520	2,690	2,320	2,510	---	---	---
9	1,120	991	1,040	1,720	1,640	1,680	2,320	2,010	2,160	2,160	2,090	2,130
10	1,240	936	1,040	1,850	1,720	1,800	2,100	1,940	2,010	2,220	2,070	2,120
11	1,010	936	981	1,970	1,850	1,900	1,990	1,490	1,820	3,020	2,970	3,000
12	1,050	1,000	1,030	2,090	1,970	2,050	2,110	1,500	1,760	3,190	2,300	2,910
13	1,110	1,010	1,050	2,240	2,090	2,180	2,310	2,010	2,190	2,300	2,030	2,190
14	1,100	941	998	---	---	---	2,210	2,020	2,120	2,030	1,740	1,900
15	948	899	937	---	---	---	2,260	2,210	2,230	1,760	1,640	1,700
16	928	880	904	---	---	---	2,290	2,260	2,270	1,830	1,710	1,760
17	915	899	904	---	---	---	2,280	2,240	2,260	2,290	1,830	2,030
18	956	912	940	---	---	---	2,260	2,190	2,230	2,320	1,860	2,160
19	953	927	938	---	---	---	2,220	2,150	2,190	1,910	1,860	1,880
20	1,020	953	982	---	---	---	2,220	2,160	2,190	1,920	1,710	1,810
21	1,160	969	1,070	---	---	---	2,250	2,210	2,230	1,920	1,770	1,870
22	1,110	895	989	---	---	---	2,270	2,170	2,250	1,990	1,920	1,960
23	1,050	898	982	---	---	---	2,250	2,210	2,230	2,020	1,950	1,990
24	983	926	951	---	---	---	2,260	2,210	2,240	2,090	2,020	2,070
25	1,030	946	978	2,040	1,750	1,880	2,270	2,260	2,260	2,080	2,050	2,070
26	1,070	863	974	2,200	1,650	1,960	2,260	2,220	2,240	2,160	2,060	2,090
27	863	730	811	1,780	1,640	1,720	2,220	2,160	2,200	2,270	2,160	2,240
28	1,030	734	905	1,760	1,700	1,720	2,270	2,190	2,230	2,330	2,150	2,250
29	1,040	992	1,010	1,870	1,750	1,800	2,290	2,240	2,270	2,200	2,160	2,190
30	1,050	718	932	2,060	1,730	1,790	2,290	2,090	2,180	2,220	2,180	2,200
31	---	---	---	2,060	1,030	1,230	2,130	1,980	2,030	---	---	---
MONTH	1,240	670	937	---	---	---	---	---	---	---	---	---

Temperature, water, degrees Celsius 

WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

DAY	MAX	MIN	MEAN	MAX	MIN	MEAN	MAX	MIN	MEAN	MAX	MIN	MEAN
	OCTOBER			NOVEMBER			DECEMBER			JANUARY
1	24.0	11.7	16.9	6.5	2.7	4.4	5.1	0.1	2.4	2.3	0.7	1.3
2	15.2	11.7	13.3	9.2	4.7	6.7	6.3	0.7	3.4	4.6	0.0	1.8
3	20.4	10.4	14.1	11.9	4.8	7.3	3.8	0.0	1.7	5.7	0.3	2.8
4	21.1	8.9	14.0	12.0	4.1	7.5	2.8	0.0	1.3	6.7	1.6	4.0
5	22.4	9.3	15.0	12.6	4.2	7.6	6.6	1.6	3.6	7.6	2.9	5.1
6	21.0	10.0	14.8	13.6	3.1	7.4	6.1	1.0	3.3	9.2	4.5	6.3
7	22.5	10.3	15.5	14.9	3.9	8.8	5.7	1.0	3.2	8.2	2.4	5.0
8	22.3	10.1	15.5	14.4	6.2	9.8	5.4	1.7	3.2	8.4	1.7	4.8
9	23.4	13.5	17.3	16.0	7.7	11.1	5.2	0.2	2.5	6.0	1.9	3.7
10	22.5	12.3	16.4	14.8	6.2	9.7	5.3	0.1	2.5	3.2	0.0	1.3
11	22.3	11.7	16.2	12.3	4.1	7.4	5.1	0.4	2.5	1.3	0.0	0.5
12	17.9	10.5	13.4	12.0	3.0	6.7	5.6	1.5	3.1	5.6	0.0	2.2
13	18.6	7.4	12.2	11.6	3.4	7.2	5.9	0.5	3.0	5.8	0.0	2.6
14	18.2	7.4	12.1	13.1	6.6	9.0	6.5	0.9	3.3	5.8	1.1	3.2
15	17.4	6.5	11.2	10.1	4.8	7.7	6.8	0.8	3.7	5.2	0.6	2.6
16	17.5	6.9	11.3	9.6	2.2	5.5	6.0	1.5	3.7	4.7	0.0	1.7
17	18.2	5.9	11.4	10.2	2.7	6.1	7.6	2.4	4.6	6.1	0.5	2.7
18	18.6	7.8	12.7	11.2	4.1	7.0	7.4	3.1	5.0	5.3	0.0	2.1
19	17.4	8.1	11.9	9.9	3.7	6.3	6.1	1.7	3.8	7.2	0.0	2.9
20	18.4	6.7	11.7	9.9	3.7	6.3	4.7	0.0	1.7	7.6	0.5	3.7
21	16.3	7.2	11.2	10.4	3.8	6.8	4.9	0.0	1.8	3.8	0.8	2.1
22	17.4	8.6	11.5	10.0	4.2	6.8	3.6	0.0	1.2	0.8	0.0	0.4
23	8.6	5.8	7.2	8.5	4.1	6.0	0.7	0.0	0.2	1.4	0.0	0.4
24	8.3	5.3	6.5	4.7	2.4	3.7	1.1	0.0	0.2	2.9	0.0	1.1
25	14.4	6.5	9.5	3.3	0.3	1.9	0.5	0.0	0.1	5.2	0.0	1.9
26	14.8	7.6	10.8	3.7	0.0	1.0	0.1	0.0	0.0	4.8	0.0	1.6
27	14.9	9.1	11.4	4.0	0.0	1.0	0.3	0.0	0.0	7.1	0.3	3.4
28	16.9	8.9	11.9	5.2	0.0	1.8	1.3	0.0	0.4	8.9	3.5	5.7
29	11.4	3.9	8.7	6.7	1.3	3.6	1.4	0.0	0.5	9.3	2.9	5.8
30	9.6	3.3	5.6	6.1	1.5	3.6	3.3	0.0	1.1	6.9	2.3	4.6
31	5.5	3.2	4.2	---	---	---	2.0	0.0	0.6	9.4	2.1	5.6
MONTH	24.0	3.2	12.1	16.0	0.0	6.2	7.6	0.0	2.2	9.4	0.0	3.0
	FEBRUARY			MARCH			APRIL			MAY
1	10.0	4.6	6.9	10.7	2.2	5.6	23.3	7.3	14.4	23.5	11.4	16.6
2	9.8	4.0	6.8	11.1	3.0	6.2	21.7	8.2	13.7	23.1	11.9	15.7
3	7.8	1.5	4.0	12.6	2.2	6.9	19.7	7.1	12.0	25.2	11.9	16.6
4	6.8	0.0	3.0	6.2	0.0	3.1	21.1	6.4	12.3	22.1	10.1	15.5
5	6.3	0.3	3.2	8.1	0.0	2.9	17.1	4.6	9.9	27.1	9.6	17.3
6	4.5	0.7	2.3	12.0	0.8	5.9	16.2	3.7	8.5	24.9	11.8	17.2
7	3.3	0.0	0.8	14.5	3.1	8.4	11.7	5.7	8.2	25.7	11.3	16.9
8	3.3	0.0	0.9	15.8	4.8	9.3	20.5	3.1	10.7	22.9	12.3	16.6
9	2.7	0.0	0.7	13.6	5.1	8.4	23.3	5.2	13.3	24.2	9.7	15.9
10	4.9	0.0	1.7	14.2	3.7	8.5	23.9	7.2	14.5	19.9	10.8	14.9
11	4.1	0.0	1.4	16.1	4.7	10.1	24.1	7.6	14.8	25.9	8.7	16.1
12	7.6	0.0	3.2	16.6	6.6	11.1	24.5	8.5	15.5	27.3	10.0	17.5
13	8.1	3.6	5.5	18.3	7.3	12.4	25.1	9.6	16.1	23.1	11.8	17.0
14	7.7	3.7	5.7	19.5	8.0	13.4	24.5	9.0	16.1	28.6	11.1	19.2
15	7.8	3.7	5.2	19.6	10.3	13.9	22.2	10.9	15.2	25.5	14.6	17.8
16	9.8	1.6	5.4	16.9	7.8	12.2	22.4	8.7	14.5	26.9	14.5	19.5
17	11.4	2.9	6.7	17.2	7.8	11.3	23.5	8.6	14.8	29.3	14.3	20.7
18	8.2	5.4	6.6	14.6	7.9	10.5	24.2	8.0	15.1	25.4	15.5	19.4
19	10.5	4.1	7.0	7.9	6.2	7.0	12.8	8.2	10.0	23.6	14.7	18.0
20	11.1	3.2	6.8	13.4	5.5	9.3	20.5	6.4	12.9	24.6	13.1	17.4
21	11.1	3.6	6.9	10.1	7.1	8.7	22.1	9.2	14.9	28.3	11.4	18.8
22	10.8	3.9	7.3	19.1	5.4	11.3	22.4	10.2	14.8	30.4	13.7	21.1
23	8.3	0.0	3.9	20.3	6.6	12.7	17.0	10.4	13.3	29.6	15.6	21.8
24	0.9	0.0	0.2	20.4	7.8	12.5	17.4	8.0	12.3	29.6	16.5	22.0
25	2.0	0.0	0.5	20.5	8.6	13.3	24.0	8.1	14.8	25.5	16.3	20.3
26	5.2	0.0	2.0	19.0	7.2	12.3	26.1	8.9	16.6	29.3	16.0	21.5
27	10.0	0.8	4.6	13.6	3.9	8.8	24.0	11.3	17.1	---	---	---
28	5.1	1.6	3.4	13.5	3.1	7.3	24.5	13.1	16.9	---	---	---
29	---	---	---	17.2	2.5	8.5	27.3	11.2	18.3	32.5	21.2	26.2
30	---	---	---	18.8	4.0	10.9	25.9	13.3	18.3	31.2	21.7	26.2
31	---	---	---	20.8	6.0	10.2	---	---	---	26.0	21.9	23.7
MONTH	11.4	0.0	4.0	20.8	0.0	9.4	27.3	3.1	14.0	---	---	---
	JUNE			JULY			AUGUST			SEPTEMBER
1	24.8	20.9	22.5	24.6	18.9	21.8	29.4	20.0	24.2	26.9	16.2	21.0
2	25.9	19.8	22.3	28.3	22.3	24.9	29.9	20.7	24.8	28.0	17.5	22.1
3	24.4	19.5	21.6	29.3	22.8	25.6	31.9	20.8	25.3	22.7	19.0	20.7
4	21.2	19.4	20.2	28.4	22.7	25.3	31.7	19.9	25.1	27.2	18.0	21.8
5	19.4	17.3	18.5	31.0	22.2	26.0	33.0	19.3	25.6	28.3	17.3	22.3
6	20.9	16.2	18.3	30.0	21.4	24.9	32.2	20.8	25.6	24.4	19.0	21.7
7	20.2	17.1	18.2	29.9	21.3	24.8	33.5	19.9	25.6	20.5	18.6	19.5
8	23.1	16.2	19.4	31.4	20.5	25.1	32.5	20.2	25.3	27.1	17.4	22.9
9	22.8	18.1	20.3	29.8	20.8	24.9	32.8	21.0	26.1	24.9	18.6	21.2
10	25.1	19.8	22.2	31.9	19.9	25.3	32.8	21.4	26.2	24.5	18.3	20.3
11	26.2	20.3	22.8	31.4	20.7	25.4	30.6	21.6	25.5	26.5	17.2	22.7
12	26.1	20.9	23.1	30.7	18.9	24.1	29.1	20.1	23.9	27.4	13.0	19.6
13	24.7	20.9	22.4	32.6	20.4	24.8	28.3	18.4	22.5	18.1	13.1	15.3
14	24.8	20.2	22.2	---	---	---	27.6	18.1	22.1	22.9	11.3	16.3
15	26.2	20.9	23.3	---	---	---	27.8	17.5	21.9	24.6	13.3	18.2
16	26.3	21.5	23.7	---	---	---	28.2	18.4	22.5	24.7	14.3	19.0
17	26.8	22.0	24.0	---	---	---	28.5	18.6	23.0	23.2	13.9	18.4
18	23.9	21.9	23.0	---	---	---	30.3	19.5	24.2	20.9	11.6	15.5
19	23.9	20.2	21.8	---	---	---	31.8	20.0	24.8	22.0	11.3	16.0
20	26.6	20.0	22.6	---	---	---	32.2	19.8	25.3	21.0	13.4	16.6
21	25.4	19.6	22.2	---	---	---	30.5	20.5	24.8	23.8	13.8	18.1
22	25.2	20.0	22.4	---	---	---	30.6	20.4	24.5	23.3	14.2	18.1
23	26.1	20.0	22.7	---	---	---	30.0	20.3	24.1	24.0	14.5	18.8
24	24.9	19.9	22.1	---	---	---	30.6	18.9	23.9	21.4	14.1	17.3
25	24.6	18.6	21.3	33.4	22.0	26.9	32.1	19.6	24.7	22.6	12.4	16.8
26	23.3	19.9	21.7	32.7	20.8	25.8	30.6	20.5	24.8	22.5	12.8	17.0
27	25.2	21.4	22.9	26.5	21.4	23.9	31.3	20.5	25.2	22.4	12.4	16.9
28	27.3	21.6	24.0	26.0	21.1	23.3	27.2	20.9	23.2	21.1	11.9	16.0
29	25.6	20.6	22.6	31.0	19.9	24.7	23.3	19.7	21.0	21.4	12.1	16.1
30	24.7	20.4	22.0	31.4	20.7	25.2	21.4	18.0	19.4	15.3	11.6	13.6
31	---	---	---	29.0	21.4	24.5	23.0	17.7	19.9	---	---	---
MONTH	27.3	16.2	21.9	---	---	---	33.5	17.5	24.0	28.3	11.3	18.7