[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	401200107090000																								
Site Name	DUNCKLEY PASS, CO																								
Latitude (dd)	40.2017																								
Longitude (dd)	-107.15635																								
Elevation (ft)	9789																								
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 (%)
401200107090000	DUNCKLEY PASS, CO	1993-04-07	1993	OB	-12	6	5.1	7.9	5	<0.2	0.9	3.8	3.9	1.1	8.7	7.7	0.9					5.8	56	190	10.3
401200107090000	DUNCKLEY PASS, CO	1994-03-24	1994	OB	-8	5	5.2	6.3	15	2.5	1.7	1	4.5	2.3	6.9	13.7	0.4					6	69	175	15
401200107090000	DUNCKLEY PASS, CO	1995-03-30	1995	OB	0	4	5.4	4	15	3.3	1.3	4.6	4.4	1.1	8.1	11.7	2.1					5.3	44	152	21.9
401200107090000	DUNCKLEY PASS, CO	1996-04-03	1996	OB	-1	3	5.5	3.2	7.9	<1.7	1.3	1	3.4	<1.1	5.4	7.9	0.6					7.4		180	11.6
401200107090000	DUNCKLEY PASS, CO	1997-04-02	1997	OB	-4	4	5.4	4	11.1	2.1		2.6	3.3	1.7	8.3	9.3	1.6					5.6		157	9
401200107090000	DUNCKLEY PASS, CO	1998-04-01	1998	OB	-11	5	4.9	12.6	5.5	<1.7		1.5	5	1.1	6.9	11.2	0.6					6		157	12.3
401200107090000	DUNCKLEY PASS, CO	1999-04-08	1999	OB	31.2	7	6.6	0.3	45.3	4	2.6	3.1	5.8	1.7	8.1	13.7	1.3					4.6		145	59.4
401200107090000	DUNCKLEY PASS, CO	2000-04-06	2000	OB	-0.4	4	5.1	7.9	8.5	2.5	<0.9	1.3	4.4	<1.1	6	9.7	0.4					5.9		157	22.1
401200107090000	DUNCKLEY PASS, CO	2001-04-03	2001	OB	2.4	4	5.7	2	12.5	2.5	2.2	2.3	5.7	<1.1	8.1	12.9	0.8			2				170	17
401200107090000	DUNCKLEY PASS, CO	2002-04-03	2002	OB	-2.2	5	5.6	2.5	12.9	2.5	1.3	1.8	3.9	1.1	6.9	14.3	0.7			4			35	135	5.5
401200107090000	DUNCKLEY PASS, CO	2003-04-03	2003	OB	13.2	5	6.1	0.8	22.9	4.9	2.2	1.8	6.9	<1.1	6.5	10.7	0.7			1.9			62	208	50.8
401200107090000	DUNCKLEY PASS, CO	2004-04-01	2004	OB	-3.2	5	5.7	2	14.4	2.5	<0.9	2.3	5	1.1	5.6	11.4	0.7			1.2			59	173	18.3
401200107090000	DUNCKLEY PASS, CO	2005-03-28	2005	OB	1.6	5	5.5	3.2	8.5	<1.7	2.2	0.8	5.3	1.1	5.6	8.6	0.2			1.4			46	168	17.1
401200107090000	DUNCKLEY PASS, CO	2006-03-29	2006	OB	8.4	4.5	6	1	13	2.5	1.7	1.5	4.9	1.4	6	10	0.33						65	201	31
401200107090000	DUNCKLEY PASS, CO	2007-03-28	2007	OB	2.6	4.8	5.7	2	13.5	2.5	1.3	3.1	4.3	1.1	6	10.7	0.93						48	165	24.4
401200107090000	DUNCKLEY PASS, CO	2008-04-02	2008	OB	4.2	6.2	5.4	4	17.5	3.3	3.9	2.6	1.9	3.4	6.9	10	1.16						66	203	29.6
401200107090000	DUNCKLEY PASS, CO	2009-04-03	2009	OB	32	6.7	6.6	0.3	35.4	3.3	3.9	1.3	4.5	1.4	6.9	7.1	0.53	0.23			4.03		70	231	68
401200107090000	DUNCKLEY PASS, CO	2010-04-07	2010	OB	6	5.9	5.4	4	17	3.3	1.7	1.5	5.9	1.1	5.6	9.3	0.5				2.56		51	198	42.2
401200107090000	DUNCKLEY PASS, CO	2011-04-06	2011	OB	11.2	4.2	6	1	17.5	3.3	1.7	2.6	3.9	0.8	5.2	7.9	1.39				5.85		78	239	49.5
401200107090000	DUNCKLEY PASS, CO	2012-04-05	2012	OB	14	5	5.6	2.5	23	4.1	5.7	2	5.9	4.5	7.5	9.7	0.8	0.24			5.33		35	124	45
401200107090000	DUNCKLEY PASS, CO	2013-04-03	2013	OB	2	3	5.6	2.5	14	2.5	1.3	1.3	6.4	1.4	4.4	9.3	0.4	0.19			2.11		48	165	33
401200107090000	DUNCKLEY PASS, CO	2014-04-02	2014	OB	18.8	5	6.4	0.4	24.5	3.3	4.8	2.6	4.7	2.5	7.1	8.1	0.95	0.2	0.23				60	216	53.9
401200107090000	DUNCKLEY PASS, CO	2015-04-01	2015	OB	4.2	3.5	5.9	1.3	10.5	1.6	1.3	1.8	6.4	1.1	4.4	6.4	0.37	0.18			3.42		51	147	39
401200107090000	DUNCKLEY PASS, CO	2016-03-18	2016	OB	5.6	3.2	5.9	1.3	12.5	1.6	2.2	1.8	4.3	0.8	4.2	6.4	0.49	0.21			2.07		49	165	44