1 inch crub of some kind. Found in 1 foot of soil in Los Angeles.
This is the c-shaped larva of a beetle in the Scarabaeidae family. The grubs usually are in the soil feeding on plant roots, tho some feed on dung, or organic matter like dead trees. Of the many grubs in the soil, some are significant pests while others do little damage. The adults are known as June or May beetles, chafers, Japanese beetles along with many others.
Depending on where you found it, may help determine which grub it is and wether it is a pest or just a helpful decomposing insect. When you say in the soil was it in the grass, mulch, flower bed, wooded area, veggie garden?? Did you just find it this week? Is 1″ curled up or stretched out length?
Many scarab grubs can be identified by the raster patterns on the tail end looking from the underside. A photo of the tail end from the underside would help me give you a more precise ID if you need it.
You provided a great close up photo!