13.20.080 Wastewater not allowed to surface on ground or enter state waters—Exception.
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No person may allow wastewater from an onsite system to be deposited upon the ground surface, nor may any person operate an onsite wastewater system that allows wastewater to surface upon the ground or enter any waters of the state. Graywater systems are exempt from this requirement in locations where they will not create a public nuisance or enter any waters of the state.