LEWIS WASH BASIN

09106200 LEWIS WASH NEAR GRAND JUNCTION, CO-Continued

WATER-QUALITY RECORDS

PERIOD OF RECORD.--August 1973 to July 1977, March 1991 to September 1993, November 1997 to December 1998, April 2002 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09106200

WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002

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)	Potas- sium, water, fltrd, mg/L (00935)	Sodium adsorp- tion ratio (00931)	Sodium, water, fltrd, mg/L (00930)	Alka- linity, wat flt fxd end lab, mg/L as CaCO3 (29801)
APR
23...	1405	12	--	8.5	864	13.7	220	61.7	16.3	3.33	3	90.7	135
MAY
28...	1240	3.7	--	8.4	985	18.4	250	67.7	20.8	2.89	3	93.8	141
JUN
27...	1025	2.1	--	8.2	1,180	22.4	290	75.2	25.9	3.73	3	129	125
JUL
26...	1215	16	6.3	8.2	1,120	23.7	260	75.6	17.3	4.81	3	125	141
SEP
26...	1455	12	7.8	8.2	1,410	17.5	330	93.2	23.2	4.89	4	157	E166

WATER-QUALITY DATA, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002

Date	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 water, fltrd, tons/d (70302)	Selen- ium, water, fltrd, ug/L (01145)
APR
23...	120	0.24	7.1	117	496	0.68	16.5	0.8
MAY
28...	126	0.26	5.3	161	563	0.77	5.58	2.0
JUN
27...	165	0.3	4.4	216	694	0.94	3.95	3.3
JUL
26...	173	0.4	9.6	142	632	0.86	28.0	0.7
SEP
26...	222	0.3	7.1	198	--	--	--	1.0
E -- Estimated laboratory analysis value.

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)	Potas- sium, water, fltrd, mg/L (00935)	Sodium adsorp- tion ratio (00931)	Sodium, water, fltrd, mg/L (00930)	Alka- linity, wat flt fxd end lab, mg/L as CaCO3 (29801)
OCT
17...	1350	13	9.1	8.6	1,300	11.9	300	84.8	22.7	4.30	4	149	E175
NOV
14...	1350	0.38	9.2	7.8	3,610	8.4	1,700	381	182	7.20	3	261	256
DEC
12...	1115	0.19	11.0	8.0	4,270	2.7	2,200	472	250	7.81	3	293	E256
JAN
16...	0950	0.08	10.6	8.0	4,420	0.7	2,500	511	287	8.44	3	343	302
FEB
19...	0915	0.08	9.6	8.0	4,470	3.3	2,300	448	291	8.25	3	345	E294
MAR
12...	0920	0.09	9.1	7.8	4,600	7.8	2,400	456	296	7.70	3	377	250
APR
22...	1145	18	8.2	8.4	981	13.1	230	65.5	17.3	4.22	3	114	142
JUN
05...	1027	11	8.1	8.1	334	14.5	120	34.2	8.29	1.37	0.8	19.0	80
24...	1007	9.4	7.8	8.2	542	16.5	170	48.0	11.9	1.89	1	44.5	103
JUL
16...	0940	7.5	--	8.2	871	22.0	220	63.5	15.9	3.51	3	88.8	134
SEP
03...	1040	15	7.3	8.0	976	20.1	230	66.2	16.8	3.68	3	93.8	136

WATER-QUALITY DATA, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

Date	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 water, fltrd, tons/d (70302)	Selen- ium, water, fltrd, ug/L (01145)
OCT
17...	202	0.3	7.7	181	--	--	--	1.2
NOV
14...	210	0.4	13.4	1,720	2,930	3.99	3.01	26.7
DEC
12...	215	0.42	12.8	2,280	--	--	--	25.0
JAN
16...	228	0.44	7.8	2,340	3,910	5.32	0.84	30.8
FEB
19...	219	0.41	4.7	2,370	--	--	--	34.0
MAR
12...	240	0.46	3.8	2,440	3,970	5.40	0.96	26.8
APR
22...	150	0.25	6.7	120	563	0.77	27.8	1.2
JUN
05...	22.4	<0.2	7.4	46.8	188	0.26	5.47	0.6
24...	55.9	0.2	7.1	77.0	309	0.42	7.85	0.7
JUL
16...	118	0.3	7.8	116	494	0.67	9.98	0.8
SEP
03...	139	0.3	8.4	129	539	0.73	21.5	1.0
< -- Actual value is known to be less than the value shown. E -- Estimated laboratory analysis value.