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Glossary

Vegetated Roof

Vegetated roofs absorb and filter rainwater, provide building insulation, enhance roof lifespan, moderate roof deck temperatures, improve heating and cooling system efficiency, and add amenity value for urban rooftop views and spaces.

Also known as Eco Roof and Green Roof.

Volume Charge

Wastewater charge applied to each customer’s contributed wastewater volume. It includes both OM&R and capital costs components.