[dd, decimal degrees; ft, feet above the North American Vertical Datum of 1988; OB, bulk deposition from E or VWM; E, depth-integrated depth-integrated environmental;																									
VWM, volume-weighted mean of two snowpack layers; ANC, acid neutralization capacity; ueq/L, microequivalents per liter;																									
uS/cm, microsiemens per centimeter; SC, specific conductance at 25degC; pH values in standard units; H, hydrogen; Ca, calcium;																									
Mg, magnesium; Na, sodium; K, potassium;  NH4, ammonium; Cl, chloride; SO4, sulfate; NO3, nitrate; DOC, dissolved organic carbon;																									
mg/L, milligrams per liter; SWE, snow-water equivalent;  cm, centimeters; d34S, stable-sulfur isotope ratio (34S/32S); Hg, mercury;																									
ng/L, nanograms per liter; NA or empty cell indicates not analyzed; <, below reporting limits; M, presence verified but not quantified; %, percent																									
missing year indicates no sample collected or sample results reviewed and rejected																									
Roth 1994: Mercury in water by CVAFD with potassium dichromate preservation																									
USEPA Method 1631, Rev E: Mercury in water by Oxidation, Purge and Trap, and CVAFS]																									
																									
Station ID	392200106120000																								
Site Name	FREMONT PASS, CO																								
Latitude (dd)	39.3643583																								
Longitude (dd)	-106.215175																								
Elevation (ft)	11216																								
SiteNumber	StationName	SampleDate	WaterYear	SampleType	ANC (ueq/L)	SC (uS/cm)	pH	H (ueq/L)	Ca (ueq/L)	Mg (ueq/L)	Na (ueq/L)	K (ueq/L)	NH4 (ueq/L)	Cl (ueq/L)	SO4 (ueq/L)	NO3 (ueq/L)	DOC (mg/L)	Total N (mg/L)	Total Dissolved N (mg/L)	Hg (ng/L) Roth 1994	Hg (ng/L) USEPA 1631	d34S (per mil)	SWE (cm)	Snow Depth (cm)	Ionic Balance (%)
392200106120000	FREMONT PASS, CO	1993-04-18	1993	OB		7	5.2	6.3	5.6	<1.7	<3	0.8	3.2	<1.1	5.6	6.4	0.7					3.7	46	150	14
392200106120000	FREMONT PASS, CO	1994-05-07	1994	OB	16	5	6.2	0.6	16.7	4.9	<3	7.7	4.3	3.7	6.2	9.9	8.8							104	43.4
392200106120000	FREMONT PASS, CO	1995-04-24	1995	OB	-4	4	5.2	6.3	5.5	<1.7	<3	0.5	2.7	<1.1	3.7	7.4	0.7					3.9		175	14.9
392200106120000	FREMONT PASS, CO	1996-04-25	1996	OB	-2	3	5.5	3.2	6.3	<1.7	1.3	0.8	2.1	<1.1	4.6	6.5	0.6							226	10.5
392200106120000	FREMONT PASS, CO	1997-04-17	1997	OB	-4	4	5.4	4	6.4	<1.7		0.5	1.5	1.7	4	9.3	1.1					4.5		178	-9.5
392200106120000	FREMONT PASS, CO	1998-04-16	1998	OB	-6	4	5.2	6.3	8	<1.7		<0.5	2.7	2.5	4.4	9	0.4					5.1		170	3.3
392200106120000	FREMONT PASS, CO	1999-04-12	1999	OB	3.2	4	5.8	1.6	16.9	2.5	1.7	1	3.2	1.4	5.2	9.3	0.6					5.2		130	30.9
392200106120000	FREMONT PASS, CO	2000-04-17	2000	OB	-2.6	4	5.1	7.9	8	<1.7	1.3	1	3.9	1.1	5.6	8.1	0.4					4.6		140	19.8
392200106120000	FREMONT PASS, CO	2001-04-09	2001	OB	-5.2	4	5.3	5	5.5	<1.7	1.3	0.5	2.9	<1.1	4.6	8.6	0.6			5.9		5.4		119	7
392200106120000	FREMONT PASS, CO	2002-04-05	2002	OB	-2	4	5.6	2.5	10.5	<1.7	<0.9	1.5	1.9	1.1	3.3	10	0.7			3			29	122	6.5
392200106120000	FREMONT PASS, CO	2003-04-17	2003	OB	-0.4	4	5.7	2	12.5	3.3	1.3	1.5	3.5	1.1	4.2	8.6	0.6			3.5			37	147	26.8
392200106120000	FREMONT PASS, CO	2004-04-08	2004	OB	-2.8	5	5.3	5	6.1	<1.7	<0.9	2.8	4.8	<1.1	4.2	9.3	0.9			2.5		4.4	29	119	16.1
392200106120000	FREMONT PASS, CO	2005-04-06	2005	OB	-8	5	5.2	6.3	6	<1.7	1.3	1	3.2	1.1	3.7	7.9	0.5			2.1		5.2	32	135	16.7
392200106120000	FREMONT PASS, CO	2006-04-06	2006	OB	17.4	5	6.3	0.5	17	1.6	1.3	0.5	2.9	1.1	4.6	8.6	0.37						50	173	48.5
392200106120000	FREMONT PASS, CO	2007-04-06	2007	OB	0.6	4.6	5.5	3.2	9.5	1.6	1.7	2.6	2	1.1	5.4	8.6	0.87						36	145	16.8
392200106120000	FREMONT PASS, CO	2008-04-05	2008	OB	3.4	4	5.6	2.5	12	1.6	1.7	1.5	2.7	1.4	3.5	7.1	0.75						48	180	35.8
392200106120000	FREMONT PASS, CO	2009-04-06	2009	OB	29.6	6.1	6.5	0.3	32.4	2.5	1.7	1.8	1.9	1.1	5.2	5.7	0.79	0.22			11.2		38	160	70.8
392200106120000	FREMONT PASS, CO	2010-04-16	2010	OB	39.8	7.5	6.4	0.4	41.4	3.3	1.3	1.8	4.9	1.1	4.6	9.3	1.15				6.9		28	112	72.2
392200106120000	FREMONT PASS, CO	2011-04-07	2011	OB	4.8	3.2	5.6	2.5	7	1.6	0.9	1.3	3	0.6	2.7	5	0.67				7.3		50	193	43.5
392200106120000	FREMONT PASS, CO	2012-04-07	2012	OB	10	5	5.2	6.3	15	3.3	3	3.1	1.3	2.8	4.6	6.9	1.4	0.21			8.02		18	81	49.2
392200106120000	FREMONT PASS, CO	2013-04-08	2013	OB	0	3	5.5	3.2	13	2.5	2.2	1.3	5.7	2	4.6	7.9	0.5	0.2			13.8		25	114	31.6
392200106120000	FREMONT PASS, CO	2014-04-07	2014	OB	26.4	5	6.6	0.3	33.9	3.3	2.6	2.6	3.9	1.4	5.6	6.4	0.97	0.15	0.18				44	188	69
392200106120000	FREMONT PASS, CO	2015-03-23	2015	OB	3.8	2.5	6.1	0.8	3	0.8	0.9	<0.1	3	0.8	2.1	4.3	<0.2	0.08			1.89		67	117	26.2
392200106120000	FREMONT PASS, CO	2016-03-28	2016	OB	5.6	2.5	6.1	0.8	9.5	0.8	1.3	0.3	3.4	0.8	2.3	4.3	<0.2	0.12			1.75		45	155	49.1