[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	443930111052600																								
Site Name	WEST YELLOWSTONE, MT																								
Latitude (dd)	44.6583333																								
Longitude (dd)	-111.0905556																								
Elevation (ft)	6675																								
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 (%)
443930111052600	WEST YELLOWSTONE, MT	1993-03-29	1993	OB	-14	4	5.2	6.3	<3.1	<1.7	<3	<0.5	5	1.4	4.4	6.9	0.3					4.6	31	84	-5.8
443930111052600	WEST YELLOWSTONE, MT	1994-03-17	1994	OB	3	5	5.9	1.3	4	<1.7	<3	0.5	12.9	3.4	7.5	10.4	0.7					6.4		66	0.9
443930111052600	WEST YELLOWSTONE, MT	1995-03-20	1995	OB	-9	5	5	10	<3.1	<1.7	<3	<0.5	8.6	1.7	5.6	10.9	0.9					4.4		107	1.1
443930111052600	WEST YELLOWSTONE, MT	1996-03-11	1996	OB	-2	3	5.4	4	4	<1.7	1.7	4.1	5.2	2	4.2	7.9	1.1					6		89	14.8
443930111052600	WEST YELLOWSTONE, MT	1997-03-10	1997	OB	-6	5	5.2	6.3	<3.1	<1.7		0.5	3.5	<1.1	2.7	4.1	0.9					5		152	20.5
443930111052600	WEST YELLOWSTONE, MT	1998-03-05	1998	OB	-12	6	5	10	<3.1	<1.7		<0.5	9.1	2.5	6	13.1	0.8					5.8		74	-6.1
443930111052600	WEST YELLOWSTONE, MT	1999-03-06	1999	OB	-3.6	4	5.4	4	4	<1.7	1.7	0.5	10.9	1.7	5	8.5	0.8							127	16.3
443930111052600	WEST YELLOWSTONE, MT	2000-03-05	2000	OB	-0.8	5	5.3	5	7.5	2.5	1.3	1	8.9	1.1	5.6	10.5								64	20.7
443930111052600	WEST YELLOWSTONE, MT	2001-03-05	2001	OB	-9.8	6	5.1	7.9	4.5	<1.7	1.3	0.5	13.6	1.1	7.5	18.6	0.9			1.8				56	1.1
443930111052600	WEST YELLOWSTONE, MT	2002-02-28	2002	OB	-4.2	5	5.4	4	3.5	<1.7	1.7	0.8	10.4	<1.1	5.6	10.7	0.3			2.2			24	91	11.2
443930111052600	WEST YELLOWSTONE, MT	2003-02-28	2003	OB	0.4	5	5.6	2.5	9	2.5	3	1.5	14	2	7.3	12.1	0.7			2.1			21	81	21.2
443930111052600	WEST YELLOWSTONE, MT	2004-02-26	2004	OB	-2.8	6	5.2	6.3	5	<1.7	1.7	0.8	7.4	1.4	4.8	11.4	1			1.4			24	89	9.3
443930111052600	WEST YELLOWSTONE, MT	2005-02-24	2005	OB	-6.6	5	5.4	4	<3.1	<1.7	<0.9	0.5	8.9	<1.1	3.7	8.6	0.3			1.7			16	61	4.3
443930111052600	WEST YELLOWSTONE, MT	2006-02-23	2006	OB	-1.2	3.7	5.6	2.5	<0.5	<0.2	<0.9	0.5	8.5	1.1	2.9	7.9	0.48						27	102	-1.7
443930111052600	WEST YELLOWSTONE, MT	2007-02-22	2007	OB	12.2	5.2	6.1	0.8	11	1.6	2.2	0.8	10.7	1.7	5.4	9.3	0.66						20	84	41.1
443930111052600	WEST YELLOWSTONE, MT	2008-02-21	2008	OB	-3.4	3.9	5.6	2.5	5.5	0.8	1.3	<0.5	10.2	1.7	3.1	8.6	0.39						33	112	20.5
443930111052600	WEST YELLOWSTONE, MT	2009-02-19	2009	OB	-1.8	3.6	5.5	3.2	3	0.8	1.3	0.8	7.8	1.1	2.7	7.9	0.74				4.07		18	69	18.2
443930111052600	WEST YELLOWSTONE, MT	2010-02-25	2010	OB	-6.6	6.1	5.1	7.9	5	1.6	2.2	<0.5	10.3	1.7	4.4	11.4	0.49				2.86		12	56	21.3
443930111052600	WEST YELLOWSTONE, MT	2011-02-24	2011	OB	4.6	4.2	5.8	1.6	5.5	1.6	3	1.8	9.6	2.3	3.7	7.1	2.36				3.11		28	117	35.8
443930111052600	WEST YELLOWSTONE, MT	2012-02-23	2012	OB	12	5	5.5	3.2	15.5	3.3	6.1	1.8	12	3.1	5.8	7.1	1.3	0.34			7.16		20	86	54.2