Benthic (Max Score = 100)
	Excellent	>= 73
	Good	60 - 73
	Stress	43 - 59
	Severe Stress	=< 42
Habitat (Max Score = 200)
	Optimal	160 to 200
	Sub-Optimal	107 to < 160
	Marginal	54 to < 107
	Poor	0 to < 54