Table 3 Rating and weight of DRASTIC-LU parameters ^4,11,34.

Parameter		Range	Rating	Weight	Parameter		Range	Rating	Weight
D	Depth to Watertable (m)	0–1.5	10	5	T	Topography (Slope %)	0–2	10	1
		1.5–3	9				2–3	9
		3–4.5	8				3–4	8
		4.5–9	7				4–5	7
		9–15	5				5–6	6
		15–22.5	3				6–10	5
		22.5–30	2				10–12	4
		> 30	1				12–16	3
R	Net Recharge (mm)	> 250	9	4			16–18	2
		180–250	8				> 18	1
		100–180	6		I	Impact on Vadose Zone	Karst Limestone	10	5
		50–100	3				Basalt	9
		0–50	1				Sand and Gravel	8
A	Aquifer Media	Karst Limestone	10	3			Sand, Gravel	7
		Basalt	9				Limestone, Gravel, Sand, Clay	6
		Sand and Gravel	8				Sandy Silt	5
		Massive Sandstone and Limestone	7				Metamorphic Gravel and sandstone	4
		Bedded Sandstone and Limestone	6				Shale, Silt, and Clay	3
		Glacial	5				Silt Clay	2
		Weathered Metamorphic/Igneous	4				Confining layer, Granit	1
		Metamorphic/Igneous	3		C	Hydraulic Conductivity (m/day)	6.5E − 4	10	3
		Massive Shale	2				5E − 4 − 9.5E − 4	8
S	Soil Media	Thin or absent, Gravel	10	2			33E − 5 − 5E − 4	6
		Sandstone and Volcanic	9				15E − 5 − 33E − 5	4
		Peat	8				5E − 5 − 15E − 5	2
		Aggregate Clay/Alluvium	7				1.5E − 7 − 5E − 5	1
		Sandy loam, schist, sand, karst volcanic	6		LU	Anthropogenic Impact	Urban and Industrial Land	10	5
		Loam	5				Rural and Industrial Land	9
		Silty Loam	4				Rural and Agricultural Land	8
		Clay Loam	3				Built-up Land	7
		Muckacid, granitoid	2				Coalmining Area	8
		Non Agegrate Clay	1				Forest	3
							Tree Clad Area	3
							Wasteland	1
							Waterbody	9

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