Environmentally Critical Areas | Environment & Sustainability
PROHIBITED LAND USES AND MATERIALS
Class 1 1- and 5-year WHPA
Class 2 10-year WHPA
Class 3 High Recharge Areas
Prohibited Land Uses and Materials (New Uses / Activities)
Dry cleaning using chlorinated solvents
prohibited
prohibited
prohibited
* Closed loop geothermal/heat exchange wells shall register their location with the City. ** Best management practices (BMPs) and integrated pest management (IPM), as applicable, are required for these uses.
RESTRICTED LAND USES AND MATERIALS
Restricted Land Uses and Materials (New Uses / Activities)
Class 1 1- and 5-year WHPA
Class 2 10-year WHPA
Class 3 High Recharge Areas
UST (underground storage tank)
Remove, decommission or upgrade to comply with federal and state standards
Abandoned wells
Decommission to comply with federal and state standards Discontinue, remove or mitigate potential impacts
Existing uses that have a long-term potential to degrade water quality in the WHPA
Effective | January 1, 2022
Title 21: Sammamish Development Code | 91
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