Slopes greater than 30 percent may be reclassified as what after an investigation indicates that a modified system may be installed in accordance with Rule .1956?

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When slopes are steeper than 30%, a standard septic system may not meet performance requirements. If an investigation shows that a modified system can be installed under Rule .1956 to address those slope-related challenges, the site isn’t considered fully suitable yet. It’s given a provisional status because there’s a pathway to compliance, but it hinges on meeting specific modifications and conditions outlined in the rule. So the correct classification is provisionally suitable, signaling conditional viability pending proper design and installation per the rule.