[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	470202113592200																								
Site Name	SNOW BOWL, MT																								
Latitude (dd)	47.03388889																								
Longitude (dd)	-113.9894444																								
Elevation (ft)	7419																								
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 (%)
470202113592200	SNOW BOWL, MT	1993-04-03	1993	OB	-9	3	5.4	4	<3.1	<1.7	<3	1	3.5	<1.1	5	3.4	0.3					4.5	48	145	0.6
470202113592200	SNOW BOWL, MT	1994-03-23	1994	OB	-10	5	5.1	7.9	<3.1	<1.7	<3	1.5	5	2.5	6.2	6.2	1					5.4		157	-1.7
470202113592200	SNOW BOWL, MT	1995-03-17	1995	OB	-5	2	5.2	6.3	<3.1	<1.7	<3	<0.5	2.9	<1.1	3.3	3.5	0.8					4.6		170	15
470202113592200	SNOW BOWL, MT	1996-03-16	1996	OB	-4	2	5.3	5	<3.1	<1.7	<0.9	1	1.6	<1.1	2.7	3.1	1.4					5.2		231	13.4
470202113592200	SNOW BOWL, MT	1997-03-17	1997	OB	-8	4	5.1	7.9	<3.1	<1.7		<0.5	1.6	<1.1	2.7	4	0.7					7.4		348	17.3
470202113592200	SNOW BOWL, MT	1998-03-14	1998	OB	-7	3	5.1	7.9	<3.1	<1.7		<0.5	2	<1.1	3.1	4.1	0.6					6.1		211	15.8
470202113592200	SNOW BOWL, MT	1999-03-14	1999	OB	-6.4	3	5.3	5	<3.1	<1.7	<0.9	<0.5	2.3	<1.1	2.5	2.5	0.4							241	18.7
470202113592200	SNOW BOWL, MT	2000-03-11	2000	OB	-4.6	3	5.2	6.3	<3.1	<1.7	<0.9	<0.5	2	<1.1	2.9	3.4	0.5							145	13.7
470202113592200	SNOW BOWL, MT	2001-03-10	2001	OB	-6.6	4	5.1	7.9	<3.1	<1.7	0.9	1	2.7	<1.1	5.2	5.7	1							160	6.8
470202113592200	SNOW BOWL, MT	2002-03-09	2002	OB	-6.4	4	5.3	5	<3.1	<1.7	<0.9	0.8	3	<1.1	3.3	4.3	0.5			11			82	267	7.3
470202113592200	SNOW BOWL, MT	2003-03-08	2003	OB	-5.8	3	5.2	6.3	<3.1	<1.7	<0.9	0.5	2.7	<1.1	2.5	3.6	0.5			2.4			57	221	21.8
470202113592200	SNOW BOWL, MT	2004-03-06	2004	OB	-24.4	3	4.7	20	<3.1	<1.7	<0.9	1	1.7	<1.1	2.5	3.6	0.8			3.6			57	198	57.6
470202113592200	SNOW BOWL, MT	2005-03-06	2005	OB	-11	5	5.1	7.9	5	<1.7	1.7	1.3	3.5	1.7	4.2	5	0.6			7.6			37	117	28.1
470202113592200	SNOW BOWL, MT	2006-03-05	2006	OB	-3	3.3	5.4	4	0.5	<0.2	1.7	0.5	3.2	1.7	2.7	3.6	0.66						75	234	10.6
470202113592200	SNOW BOWL, MT	2007-03-04	2007	OB	-3.6	4.8	5.2	6.3	2.5	0.8	1.3	1	<1	2	3.5	3.6	0.72						66	229	13.3
470202113592200	SNOW BOWL, MT	2008-03-02	2008	OB	-4.2	6.2	5	10	5.5	0.8	1.3	0.8	3.4	1.1	3.1	3.6	0.5						75	236	47.3
470202113592200	SNOW BOWL, MT	2009-03-01	2009	OB	-5	3.1	5.3	5	<0.5	<0.2	<0.9	0.5	1.8	0.6	2.3	2.9	0.46				7.65		67	221	11.5
470202113592200	SNOW BOWL, MT	2010-03-07	2010	OB	-8.2	4.1	5.2	6.3	2.5	0.8	1.3	1.3	4	0.8	5	3.6	0.58				14.4		46	152	26.6
470202113592200	SNOW BOWL, MT	2011-03-06	2011	OB	-5.6	2.7	5.3	5	1.5	0.8	1.7	<0.5	2.3	<0.6	2.9	2.9	0.38				5.41		92	284	32.2
470202113592200	SNOW BOWL, MT	2012-03-04	2012	OB	-8	3	4.8	15.8	2	<1.6	1.7	1	4.8	3.4	2.3	2.8	0.4	0.12			8.56		66	239	49.7
470202113592200	SNOW BOWL, MT	2013-03-03	2013	OB	-2	2	5.1	7.9	2	<1.6	<0.9	<0.5	3.5	0.8	2.7	3.6	0.3	0.1			3.31		62	201	30.7
470202113592200	SNOW BOWL, MT	2014-03-02	2014	OB	1.4	2	5.5	3.2	1.5	<0.8	0.9	0.5	3	0.8	2.3	2.7	0.24	0.09	0.11				75	287	28.8
470202113592200	SNOW BOWL, MT	2015-03-08	2015	OB	-4.6	2.9	5.4	4	1	0.8	0.9	0.5	2.3	0.8	1.7	2.1	0.35	<0.05			6.96		75	218	34.8
470202113592200	SNOW BOWL, MT	2016-03-06	2016	OB	0	2.4	5.3	5	0.5	<0.2	1.3	0.5	2.6	1.4	1.7	2.9	0.35	0.1			2.32		62	190	24.5