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Wyandotte Creek GSA adopts subsidence monitoring SMCs consistent with neighboring basins
Summary
After a staff presentation and public questions, the board voted to adopt subsidence sustainable‑management criteria that use satellite InSAR (NSAR) monitoring and set interim milestones at 0.25 foot per five years and a minimum threshold of two feet over 20 years (Option 1).
Becky Fairbanks, the Sigma grant project manager, introduced proposed amendments to the Wyandotte Creek Groundwater Sustainability Plan as part of the required periodic evaluation and said the board must address subsidence monitoring and sustainable‑management criteria (SMCs).
Ryan Fulton, a consultant with LWA, explained that DWR expects subsidence to be measured directly using NASA‑style SAR (referred to in the meeting as NSAR) instead of relying solely on groundwater levels as a proxy. Fulton presented two SMC options for the…
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