Winter Maintenance Wash-Water Heavy Metal Removal Pilot Scale Evaluation

Table 3

Percent total metal removal by a 4 µm and 5 µm filter for each of the six wash-water samples.

County garage	Copper		Zinc		Iron		Lead
	>5 µm	>4 µm	>5 µm	>4 µm	>5 µm	>4 µm	>5 µm	>4 µm
Allen	98	99	82	86	94	95	96	98
Stark 1	98	98	93	95	99	100	96	95
Stark 2	82	73	72	84	98	99	93	64
Fairfield	40	46	25	28	87	96	93	87
Guernsey	99	99	81	82	99	99	99	99
Cuyahoga	72	73	9	10	44	43	11	17

See (2).