Lancaster, CA Environmental Rules: Erosion Control (2026)

030 prohibits disturbing the surface or subsurface of land, by excavating, grading, leveling, cultivating, plowing, discing, removing vegetation, or depositing soil, in a manner likely to cause or contribute to dust emission or wind erosion, and separately bars letting an existing dust or erosion condition worsen without protecting the soil from blowing onto a road or neighboring property. 040 exempts work by the forester and fire warden, the agricultural commissioner, or the road department, or anyone acting under a specific departmental order under other required ordinances, statutes, or regulations, as well as unpaved roadways open to public travel and unimproved public rights-of-way.

050 requires protection by walls, fences, planted and maintained vegetation, land covering, watering, or other effective methods, and sets a numeric watering standard: land must be kept moist to a depth of one inch, applied by tanker truck or on-site sprinkler for sites of five acres or less, and by an on-site sprinkler system alone for sites larger than five acres. 060, if a site investigation shows dust or erosion controls are inadequate, the city engineer or an authorized representative can limit or halt all activity on the site until adequate control is achieved.