Wet Weather Groundwater Determinations & Percolation Testing for 2023 Season
Published: January 27, 2023
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Groundwater determinations have closed in all seven areas. Percolation testing remains open in all seven areas (Cloverdale, Guerneville, Healdsburg, Petaluma, Santa Rosa, Sebastopol, and Sonoma).
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Rainfall totals data and/or testing dates are valid as of January 27, 2023.
More Information: Wet Weather Groundwater Determinations & Percolation Testing