What are they doing with Los Gatos Creek Runoff?

I live just 5 minutes walking distance from the campbell perc ponds and loved witnessing the massive amount of water running down the creek during the storms but what's disturbing is that all the ponds remain empty except for pond 1 which is at the same level as it was prior to the last 2 systems so it's seems to me they are just allowing the water to runoff all the way to the guadalupe fork which eventually hits Alviso. Don't get me wrong I love that Alviso is getting the fresh water as sturgeon is kicking up now because of it but what are they doing with the percs? They spent all summer/fall running truck after truck up and down my street digging them out deeper but now that the water is coming in they aren't filling them?