• Water Well

Water Wells

Dry Weather Well Testing

Properties with water wells may need the dry weather well testing. It is required when building a new or replacement dwelling in scarce water zone four, when building an accessory dwelling unit in marginal water zone three, or as required by Permit Sonoma staff to comply with Health and Safety Conditions.

Resources for Maintaining Wells

WLS-011 Disinfecting Wells

Contact Information

Contact Well & Septic by Phone
2550 Ventura Avenue
Santa Rosa, CA 95403
38.465074, -122.723705

Well & Septic Districts Map

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Well and Septic Districts Map

Map of well and septic environmental health districts within Sonoma County.