The Hayward Fault Creep
The Hayward Fault runs directly through the cemetery zone. The ground here is restless. It undergoes "aseismic creep." It moves slowly but with immense force.
This movement shears rigid concrete borders. It twists foundations. We see headstones rotated off their bases constantly. If you are searching for tombstone repair and restoration, patching the concrete is useless. The fault will break it again. We install flexible, locked-gravel foundations. These absorb the earth's movement without transferring the stress to the monument.
The 880 Diesel Paste
The air here is a diesel funnel. I-880 traffic creates a dense cloud of oily soot. It settles on headstones. The sun cures it into a black, sticky paste.
Rain has no effect. The oil is hydrophobic; water just beads up. Standard soap just smears the oil around.
If you are searching for headstone cleaning services near me because the stone is black and sticky, that is diesel soot. Tending uses industrial grave site cleaning services with heavy-duty degreasers. We chemically cut through this petroleum film to reveal the clean stone underneath.
Adobe Hillside Heave
The foothills are made of expansive adobe clay. This soil has massive expansion force. When it absorbs rain, it increases in volume. It pushes heavy markers right out of the ground.
When the ground dries, the soil shrinks. The stone drops unevenly into the void. We excavate the active clay. We replace it with a deep buffer of non-expansive angular rock. This stops the lifting force and keeps the tribute level.
