The finished pad looks too nice for just a "pipe in the ground". Also, it looks like it is very close to your house?
Most states require a permit to drill any type of well: water well, environmental monitoring well etc.
We all know California is not going to miss the opportunity to charge a fee for drilling that well.
You can check to see if California has a statewide database/website that has those permits listed on a map.
try this website, second option down the page is most likely what you want:
water.ca.gov
this option, lets you enter an address to locate on the map:
dwr.maps.arcgis.com