In a recent government meeting, officials discussed the pressing issue of erosion in San Mateo County, emphasizing that the primary concern stems from frequent, lower-intensity storm events rather than rare, high-intensity storms like the 100-year flood. Experts highlighted that while the design standards for hydro modification projects are based on the 10-year storm event and below, it is the cumulative impact of smaller storms that significantly contributes to erosion.

The conversation also touched on the recent flooding events, with varying classifications of storm intensity being debated. One official noted that a storm two years ago was labeled a 500-year flood by some, while others referred to it as a 37-year storm. This discrepancy underscores the complexity of accurately assessing storm impacts and their implications for local infrastructure.

Officials stressed the importance of addressing these erosive forces, which are exacerbated by frequent rainfall, and acknowledged the need for timely action to mitigate further damage. The discussion also raised concerns about meeting environmental regulations, specifically regarding the California Environmental Quality Act (CEQA), which some members felt could be hindering progress on necessary projects.

Overall, the meeting highlighted the urgent need for a comprehensive approach to stormwater management and erosion control, focusing on the realities of frequent storm events that pose ongoing risks to the region.