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Permit Sonoma

Well and Septic Systems
Permit Sonoma › Divisions › Engineering & Construction › Well and Septic Systems › Septic Systems › Wet Weather Testing › Area Boundary Map
Well and Septic Systems

Testing Area Boundaries Map

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Well & Septic Maps

Environmental Health Districts Map (PDF)

Map of Well & Septic's environmental health districts within Sonoma County.

OPR Inspection Areas Map (PDF)

Map of Well & Septic's non-standard septic system OPR inspection areas within Sonoma County.