PLATTE RIVER BASIN

402231105291900 LAKE ESTES NEAR DAM NEAR ESTES PARK, CO

WATER-QUALITY RECORDS

LOCATION.--Lat. 40°22'31", long 105°29'19", in SE14 NW14 sec.29, T.5 N., R.72 W., Larimer County, Hydrologic Unit 14010001, 1 mi southeast of Estes Park.

PERIOD OF RECORD.--May 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=402231105291900

REMARKS.--Samples were collected near-surface and near-bottom at estimated deepest point near Olympus Dam.

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

Date	Time	Sam- pling depth, feet (00003)	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)
NOV
07...	1103	0.50	9.2	6.9	52	3.5
07...	1104	5.00	9.1	6.9	52	3.4
07...	1105	10.0	9.1	6.9	52	3.4
07...	1106	15.0	9.1	6.9	51	3.4
07...	1107	20.0	9.0	6.9	51	3.4
07...	1108	25.0	9.0	6.9	51	3.4
MAY
16...	0927	0.50	8.8	7.2	68	9.9
16...	0928	5.00	8.7	7.2	68	9.9
16...	0929	10.0	8.6	7.2	68	9.8
16...	0930	15.0	8.6	7.2	68	9.8
16...	0931	20.0	8.5	7.2	67	9.6
16...	0932	25.0	8.2	7.0	71	8.4
16...	0933	30.0	7.9	6.9	72	8.0
AUG
28...	0930	0.50	7.0	6.8	44	16.8
28...	0931	5.00	6.7	6.8	39	16.5
28...	0932	10.0	6.6	6.8	38	16.4
28...	0933	15.0	6.6	6.8	37	16.4
28...	0934	20.0	6.3	6.8	36	16.2
28...	0935	25.0	6.2	6.8	36	16.2
28...	0936	30.0	4.1	6.8	30	14.6

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

Date	Time	Sam- pling depth, feet (00003)	Trans- parency Secchi disc, inches (00077)	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)
NOV
07...	1115	0.10	84.0	9.2	6.9	52	3.5	21	6.44	1.26	0.61	0.2	2.53
07...	1120	22.0	--	9.0	6.9	51	3.4	21	6.44	1.26	0.64	0.2	2.54
MAY
16...	0945	0.10	61.0	8.8	7.2	68	9.9	25	7.18	1.78	0.84	0.4	4.11
16...	1000	30.0	--	7.9	6.9	72	8.0	26	7.55	1.83	0.93	0.4	4.40
AUG
28...	0950	0.10	76.0	7.0	6.8	44	16.8		--	--	--		--
28...	1000	30.0	--	4.1	6.8	30	14.6		--	--	--		--

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

Date	ANC, wat unf fixed end pt, lab, mg/L as CaCO3 (90410)	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 on evap. at 180degC wat flt mg/L (70300)	Ammonia + org-N, water, unfltrd mg/L as N (00625)	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)
NOV
07...	23	1.37	<0.17	3.84	2.8	33	0.04	28	0.26	0.034	0.088	0.003	<0.007
07...	23	1.43	<0.17	3.88	2.8	33	0.05	34	0.25	0.034	0.090	E.002	<0.007
MAY
16...	18	7.24	0.2	7.06	5.2	46	0.08	62	0.42	<0.015	0.173	0.005	<0.007
16...	19	7.23	0.2	7.11	5.4	47	0.08	58	0.35	0.018	0.186	0.005	<0.007
AUG
28...	19	0.88	<0.2	--	3.2	--	--	33	0.22	<0.015	E.018	<0.002	<0.007
28...	16	0.87	<0.2	--	2.8	--	--	31	0.33	0.072	0.043	E.002	<0.007

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

Date	Phos- phorus, water, fltrd, mg/L (00666)	Phos- phorus, water, unfltrd mg/L (00665)	Organic carbon, water, unfltrd mg/L (00680)	E coli, m-TEC MF, water, col/ 100 mL (31633)	Chloro- phyll a phyto- plank- ton, fluoro, ug/L (70953)	Chloro- phyll b phyto- plank- ton, fluoro, ug/L (70954)	Barium, water, fltrd, ug/L (01005)	Beryll- ium, water, fltrd, ug/L (01010)	Boron, water, fltrd, ug/L (01020)	Cadmium water, fltrd, ug/L (01025)	Chrom- ium, water, fltrd, ug/L (01030)	Cobalt water, fltrd, ug/L (01035)	Copper, water, fltrd, ug/L (01040)
NOV
07...	E.004	0.013	2.5	E14	2.2	<0.1	6.7	<0.5	<13	<0.2	<0.8	0.038	0.9
07...	0.006	0.013	2.7	--	--	--	6.8	<0.5	<13	<0.2	<0.8	0.035	1.1
MAY
16...	0.010	0.029	6.3	E7	2.6	<0.1	6.7	<0.5	<13	<0.2	<0.8	0.051	1.2
16...	0.007	0.023	6.1	--	--	--	7.2	<0.5	<13	<0.2	<0.8	0.052	1.2
AUG
28...	E.004	0.015	3.6	E15	2.6	<0.1	--	<0.4	E5.4	<0.2	<0.8	--	--
28...	<0.004	0.033	2.9	--	--	--	--	<0.4	E5.4	<0.2	<0.8	--	--

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

Date	Iron, water, fltrd, ug/L (01046)	Lead, water, fltrd, ug/L (01049)	Lithium water, fltrd, ug/L (01130)	Mangan- ese, water, fltrd, ug/L (01056)	Molyb- denum, water, fltrd, ug/L (01060)	Nickel, water, fltrd, ug/L (01065)	Silver, water, fltrd, ug/L (01075)	Stront- ium, water, fltrd, ug/L (01080)	Vanad- ium, water, fltrd, ug/L (01085)	Zinc, water, fltrd, ug/L (01090)
NOV
07...	61	E.05	1.2	7.2	0.4	0.27	<0.3	35.0	0.3	2
07...	68	E.05	1.2	7.4	0.4	0.26	<0.3	35.3	0.3	1
MAY
16...	121	0.11	1.7	1.1	0.5	0.52	<0.3	38.2	0.3	7
16...	130	E.05	1.7	1.9	0.5	0.53	<0.3	39.9	0.2	2
AUG
28...	--	<0.08	--	0.6	--	--	<0.3	--	--	1
28...	--	E.05	--	15.3	--	--	<0.3	--	--	M
< -- Actual value is known to be less than the value shown. E -- Estimated laboratory analysis value. M -- Presence of material verified but not quantified.