[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	454147113560900																								
Site Name	CHIEF JOSEPH PASS, MT																								
Latitude (dd)	45.69638889																								
Longitude (dd)	-113.9358333																								
Elevation (ft)	7308																								
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 (%)
454147113560900	CHIEF JOSEPH PASS, MT	1993-04-04	1993	OB	-10	3	5.3	5	<3.1	<1.7	<3	<0.5	3.2	<1.1	4	2.8	0.4					4.8	48	150	9.3
454147113560900	CHIEF JOSEPH PASS, MT	1994-03-24	1994	OB	-4	4	5.4	4	<3.1	<1.7	<3	1.5	4.3	1.4	3.7	4.8	1.2					6		119	-0.5
454147113560900	CHIEF JOSEPH PASS, MT	1995-03-18	1995	OB	-4	2	5.3	5	<3.1	<1.7	<3	<0.5	3.8	<1.1	2.9	3.3	0.6					4.1		150	17.3
454147113560900	CHIEF JOSEPH PASS, MT	1996-03-17	1996	OB	-4	2	5.2	6.3	<3.1	<1.7	<0.9	0.5	1	<1.1	2.1	4.9	0.7							211	5.4
454147113560900	CHIEF JOSEPH PASS, MT	1997-03-18	1997	OB	-4	10	5.3	5	<3.1	<1.7		<0.5	1.2	<1.1	1.5	2.9	0.5					4.8		267	17
454147113560900	CHIEF JOSEPH PASS, MT	1998-03-15	1998	OB	-7	3	5.2	6.3	<3.1	<1.7		<0.5	3.9	<1.1	3.1	4.6	0.6					6.8		140	14
454147113560900	CHIEF JOSEPH PASS, MT	1999-03-13	1999	OB	-4.6	3	5.3	5	<3.1	<1.7	1.3	0.5	3.4	<1.1	2.1	2.9	0.2					5.1		178	34.2
454147113560900	CHIEF JOSEPH PASS, MT	2000-03-12	2000	OB	-5.4	3	5.3	5	<3.1	<1.7	<0.9	<0.5	2.9	<1.1	1.7	2.9	0.5							155	26.4
454147113560900	CHIEF JOSEPH PASS, MT	2001-03-16	2001	OB	-5.6	3	5.3	5	4.5	<1.7	1.3	1.3	2.8	<1.1	4.2	5.7	1.2			3.4		5.3		112	20.2
454147113560900	CHIEF JOSEPH PASS, MT	2002-03-07	2002	OB	-4.2	3	5.4	4	<3.1	<1.7	<0.9	<0.5	3.4	<1.1	2.1	3.6	0.3			1.4		6.3	40	145	13
454147113560900	CHIEF JOSEPH PASS, MT	2003-03-09	2003	OB	-5.4	3	5.2	6.3	<3.1	<1.7	<0.9	<0.5	2.2	<1.1	1.7	2.1	0.3			1.8			60	224	38.2
454147113560900	CHIEF JOSEPH PASS, MT	2004-03-08	2004	OB	-8	4	5.2	6.3	<3.1	<1.7	1.7	1.3	2.4	1.4	2.5	2.9	1.3			4.2		2.9	48	175	26.5
454147113560900	CHIEF JOSEPH PASS, MT	2005-03-08	2005	OB	-8.6	5	5.2	6.3	<3.1	<1.7	<0.9	0.8	3.7	1.1	2.9	4.3	0.4			2.6			27	91	13.1
454147113560900	CHIEF JOSEPH PASS, MT	2006-03-06	2006	OB	0.8	3.1	5.5	3.2	1.5	<0.2	2.2	<0.5	2.8	2.5	2.3	2.9	0.45					5.1	55	185	15.4
454147113560900	CHIEF JOSEPH PASS, MT	2007-03-05	2007	OB	-1.8	3.5	5.5	3.2	2.5	0.8	3	0.8	3	1.1	2.9	3.6	0.4						39	140	27.3
454147113560900	CHIEF JOSEPH PASS, MT	2008-03-01	2008	OB	-4.2	6.6	5	10	4.5	<0.2	<0.9	0.5	2.3	0.8	2.1	3.6	0.52						62	203	45.4
454147113560900	CHIEF JOSEPH PASS, MT	2009-02-28	2009	OB	-2.6	2.7	5.5	3.2	0.5	<0.2	<0.9	1	2.3	<0.6	1.5	2.1	0.6				4.71		42	137	32.1
454147113560900	CHIEF JOSEPH PASS, MT	2010-03-06	2010	OB	-5.6	4.2	5.3	5	3.5	0.8	2.2	1	6.9	1.7	4	5.7	0.73				3.6		26	91	26
454147113560900	CHIEF JOSEPH PASS, MT	2011-03-05	2011	OB	-2.4	2.8	5.5	3.2	3.5	0.8	3	0.5	2.7	1.1	2.9	2.9	0.47				3.95		52	170	33
454147113560900	CHIEF JOSEPH PASS, MT	2012-03-02	2012	OB	-2	3	4.8	15.8	2.5	<1.6	1.3	1.5	2.9	1.1	2.3	2.6	0.7	0.1			3.97		46	168	60
454147113560900	CHIEF JOSEPH PASS, MT	2013-03-02	2013	OB	-4	2	5.2	6.3	4.5	1.6	0.9	0.8	4.3	1.7	2.5	3.6	0.6	0.12			4.86		38	127	40.5
454147113560900	CHIEF JOSEPH PASS, MT	2014-03-01	2014	OB	2.8	2	5.7	2	3.5	<0.8	1.3	0.5	2.3	1.1	1.9	2.4	0.42	0.08	0.09				57	216	39.3
454147113560900	CHIEF JOSEPH PASS, MT	2015-03-07	2015	OB	-5.2	2.5	5.3	5	1	M	0.9	0.3	2.5	1.1	1.2	2.1	0.29	0.07			4.18		46	135	37.6
454147113560900	CHIEF JOSEPH PASS, MT	2016-03-05	2016	OB	-2.4	2.3	5.4	4	0.5	<0.2	1.3	0.5	3.5	1.1	1.7	2.9	0.32	0.12			3.68		45	142	26.5