| Action | Action to Adopt Regulations for Alternative Onsite Sewage Systems |
| Stage | Proposed |
| Comment Period | Ended on 2/4/2011 |
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Proposed change to Table 2 below. This will allow greater site flexibility, less mechanical systems on marginal sites and overall lower life cycle costs to homeowners. TL-3 effluent meeting 10/10 BOD/TSS and a FC standard will adequately protect water sources and public health.
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Vertical Separation
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Minimum Effluent Quality
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≥18" (requires naturally occurring, undisturbed soils)
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Septic
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<18" to 12" (requires minimum 6" of naturally occurring, undisturbed soils)
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TL-2
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12” to 6” (requires minimum 6" of naturally occurring, undisturbed soils)
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TL-3 with Timed Dosing of Treatment Unit
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0" to <6"
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TL-3 and disinfection*
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