Tour Demonstration Systems by Treatment Unit

Textile Filter
Foam Filter
Trickling Filter
Peat Filter
Fixed Activated Sludge System
Ultraviolet Light Unit
Submerged Upflow Filter

For details about each system, click on the short descriptions provided in the tables below.

Textile Filter

	Block Island	two-bedroom home on small, lakefront lot with private well and sloping yard	Shallow narrow drainfield
	Block Island	three-bedroom home on small lot with private well and high water table	Shallow narrow drainfield
	Block Island	apartment house on small lot with private well	Shallow narrow drainfield
	Block Island	three-bedroom home on small, sloping lot with private well and pond	Shallow narrow drainfield
	Block Island	three-bedroom home with two-bedroom cottage on lot with private well; shared system	Shallow narrow drainfield
	Block Island	three-bedroom home on small, sloping lot with private well and high water table	Shallow narrow drainfield
	South Kingstown	two-bedroom home on small lot with high water table	Shallow narrow drainfield
	South Kingstown	two-bedroom home on small waterfront lot with private well	Shallow narrow drainfield
	South Kingstown	three-bedroom home on small lot with high water table and nearby wetlands	Shallow narrow drainfield
	Charlestown	three-bedroom home on small lot with private well and high water table	Shallow narrow drainfield
	Charlestown	two-bedroom home on small lot with private well	Shallow narrow drainfield
	Charlestown	three-bedroom home on small waterfront lot with private well	Bottomless sand filter drainfield
	Block Island	two-bedroom home on small, sloping lot with private well	Bottomless peat filter drainfield
	Block Island	three-bedroom home on small waterfront lot with private well and high water table	Bottomless peat filter drainfield
	South Kingstown	two-bedroom home on small lot with high water table and nearby wetlands	Bottomless peat filter drainfield

Foam Filter

	Block Island	bed and breakfast, with private well	Bottomless sand filter drainfield
	South Kingstown	three-bedroom home on small lot with nearby wetlands	Shallow narrow drainfield

Trickling Filter

	South Kingstown	three-bedroom home on small waterfront lot with high water table	Shallow narrow drainfield
	South Kingstown	two-bedroom home on small waterfront lot with high water table	Bottomless sand filter drainfield

Peat Filter

	Charlestown	three-bedroom home on small, waterfront lot with private well and high water table	Up-flow denitrification filter and shallow narrow drainfield
	South Kingstown	three-bedroom home on a waterfront lot with high water table	Up-flow denitrification filter and bottomless sand filter drainfield
	South Kingstown	three-bedroom home on small lot with nearby wetlands	Ultra violet light and shallow narrow drainfield

Fixed Activated Sludge System

South Kingstown

three-bedroom home on a waterfront lot with high water table

Ultra violet light and shallow narrow drainfield

Ultraviolet Light Unit

	South Kingstown	three-bedroom home on a waterfront lot with high water table	Ultra violet light and shallow narrow drainfield
	South Kingstown	three-bedroom home on small lot with nearby wetlands	Ultra violet light and shallow narrow drainfield

Submerged Upflow Filter

	Charlestown	three-bedroom home on small, waterfront lot with private well and high water table	Up-flow denitrification filter and shallow narrow drainfield
	South Kingstown	three-bedroom home on a waterfront lot with high water table	Up-flow denitrification filter and bottomless sand filter drainfield