PLATTE RIVER BASIN

06752258 CACHE LA POUDRE RIVER AT SHIELDS STREET, AT FORT COLLINS, CO

WATER-QUALITY RECORDS

LOCATION.--Lat 40°36'11", long 105°05'43", in NE14SE14 sec.3, T.7 N., R.69 W., Larimer County, Hydrologic Unit 10190007, at Shields Street bridge,
0.8 mi downstream from Larimer-Weld Canal, and 1.0 mi northwest of Fort Collins.

DRAINAGE AREA.--1,119 mi2.

PERIOD OF RECORD.--October 1979 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=06752258

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)	Sodium adsorp- tion ratio (00931)	Sodium, water, fltrd, mg/L (00930)	ANC, wat unf fixed end pt, lab, mg/L as CaCO3 (90410)	Chlor- ide, water, fltrd, mg/L (00940)
OCT
17...	0845	4.5	10.3	8.4	446	8.5	210	59.1	15.0	--	--	E151	--
NOV
15...	1025	1.1	8.4	7.5	463	6.0	230	61.6	18.2	--	--	172	--
DEC
17...	0845	20	11.2	8.6	428	2.0	210	60.9	13.9	--	--	E146	--
JAN
29...	1320	8.7	12.1	8.6	453	4.0	220	62.9	14.5	0.3	9.74	144	3.53
FEB
27...	0845	7.2	11.4	8.4	456	1.0	220	65.0	14.7	--	--	E163	--
APR
03...	1100	2.9	8.7	7.7	534	10.5	250	67.6	19.1	--	--	145	--
29...	0930	7.5	9.1	8.3	262	12.5	110	29.1	8.86	--	--	88	--
MAY
20...	1220	178	10.2	8.5	128	9.0	51	15.0	3.33	--	--	45	--
JUL
02...	0915	462	8.3	7.8	65	16.0	26	7.58	1.74	--	--	25	--
15...	1345	22	7.9	8.6	126	20.5	50	14.1	3.68	0.3	4.10	46	1.88
AUG
05...	1315	49	8.1	8.3	105	21.5	47	14.0	2.98	--	--	38	--
SEP
17...	1450	29	9.8	8.5	204	17.0	87	25.6	5.69	--	--	71	--

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

Date	Fluor- ide, water, fltrd, mg/L (00950)	Silica, water, fltrd, mg/L (00955)	Sulfate water, fltrd, mg/L (00945)	Residue on evap. at 180degC wat flt mg/L (70300)	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)	Phos- phorus, water, fltrd, mg/L (00666)	Alum- inum, water, fltrd, ug/L (01106)	Arsenic water, fltrd, ug/L (01000)	Cadmium water, fltrd, ug/L (01025)	Chrom- ium, water, fltrd, ug/L (01030)
OCT
17...	--	--	--	--	<0.04	<0.022	<0.008	<0.02	<0.04	--	--	--	--
NOV
15...	--	--	--	--	<0.04	<0.022	<0.008	<0.02	<0.04	--	--	--	--
DEC
17...	--	--	--	--	<0.04	0.185	<0.008	<0.02	<0.04	--	--	--	--
JAN
29...	0.43	5.5	88.6	288	<0.04	0.068	<0.008	<0.02	<0.04	2	<2	<0.2	<0.8
FEB
27...	--	--	--	--	<0.04	0.189	<0.008	<0.02	<0.04	--	--	--	--
APR
03...	--	--	--	--	<0.04	0.453	E.005	<0.02	<0.04	--	--	--	--
29...	--	--	--	--	<0.04	0.227	<0.008	<0.02	<0.04	--	--	--	--
MAY
20...	--	--	--	--	<0.04	0.203	<0.008	<0.02	<0.04	--	--	--	--
JUL
02...	--	--	--	--	<0.04	0.052	<0.008	<0.02	<0.04	--	--	--	--
15...	0.2	7.34	12.3	82	<0.04	0.071	<0.008	<0.02	<0.04	13	<2	<0.04	<0.8
AUG
05...	--	--	--	--	<0.015	0.085	<0.008	<0.007	<0.04	--	--	--	--
SEP
17...	--	--	--	--	<0.015	0.022	<0.008	<0.007	<0.04	--	--	--	--

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

Date	Copper, water, fltrd, ug/L (01040)	Iron, water, fltrd, ug/L (01046)	Iron, water, unfltrd recover -able, ug/L (01045)	Lead, water, fltrd, ug/L (01049)	Mangan- ese, water, unfltrd recover -able, ug/L (01055)	Mercury water, fltrd, ug/L (71890)	Nickel, water, fltrd, ug/L (01065)	Selen- ium, water, fltrd, ug/L (01145)	Silver, water, fltrd, ug/L (01075)	Zinc, water, fltrd, ug/L (01090)
OCT
17...	1.2	26	130	--	--	--	--	--	<0.3	--
NOV
15...	0.9	14	120	--	--	--	--	--	<0.3	--
DEC
17...	1.1	24	80	--	--	--	--	--	<0.3	--
JAN
29...	1.1	22	160	<1	27	<0.02	<4.0	0.6	<0.3	M
FEB
27...	1.2	24	150	--	--	--	--	--	<0.3	--
APR
03...	1.7	39	170	--	--	--	--	--	<0.3	--
29...	1.6	27	290	--	--	--	--	--	<0.3	--
MAY
20...	1.2	60	1,340	--	--	--	--	--	<0.3	--
JUL
02...	0.7	56	200	--	--	--	--	--	<0.3	--
15...	1.0	37	130	<0.08	18	<0.02	0.65	<0.5	<0.20	M
AUG
05...	1.2	29	200	--	--	--	--	--	<0.20	--
SEP
17...	0.8	35	80	--	--	--	--	--	<0.20	--
< -- Actual value is known to be less than the value shown. E -- Estimated laboratory analysis value. M -- Presence of material verified but not quantified.