Table 2:

Levels of contaminants of concern in water, in Rosia Montana (RM) area, and Romanian regulatory exposure levels for metals in drinking water (μg/L) – maximum contaminant level (MCL) in drinking water.

	COCs	As	Cd	Cr (total)	Hg	Ni	Pb
Water	Stream
2005	Upstream from RM mining area (n=3)	1.5±0.9	<1a	4.8	-	1.8	<1a
2005	Downstream from RM mining area (n=3)	17±14.5	6±7.2	44.9±3.6	-	72.4±58.7	<1a
2006	Upstream from RM mining area (n=3)	2.7±3.5	<1a	2.2±1.3	-	<1a	<1a
2006	Downstream from RM mining area (n=2)	22.8±27.1	29.1±39.4	20.2±12.4	-	121±143.5	22.5
2007	Upstream from RM mining area (n=2)	2.1±0.3	<1a	3.5	-	<1a	<1a
2007	Downstream from RM mining area (n=0)	-	-	-	-	-	-
2008	Upstream from RM mining area (n=1)	<0.05a	<1a	<1a	-	<1*	<1a
2008	Downstream from RM mining area (n=1)	294	95.3	57.1	-	93.6	23.8
Water	Drinking (n=10)	5.4±3.1	2.1±0.3	4.2±1.5	-	5.4±3.1	1.7±1.9
Romanian Regulatory Exposure Levels for metals (Drinking water) - MCL		10	5	50	1	20	10

Contaminants of concern concentrations (COCs) in μg/L for water (average ± SD).

^aLimit of detection (LOD). Bold value indicates Romanian regulatory exposure levels MCL.

“–” no data.