GPI waivers may be granted by the district grading inspector on a case by case basis. Waivers are generally not granted for deepened foundations, slopes 3:1 (H:V) or steeper, swimming pool, or retaining walls over 6 feet in height.
Can I install a stormwater infiltration system in a lot within a Hillside Grading Area?
In general, infiltration is not allowed within a Hillside Grading Area. However, consideration can be given for properties where slopes won't be impacted.
Can I install a stormwater infiltration system in a lot within a potentially liquefiable hazard zone?
In general, infiltration is not allowed within a potentially liquefiable hazard zone. However, sites within a potentially liquefiable zone can be considered for infiltration if a soils report demonstrates that the site is not subject to liquefaction.
Can you recommend a consultant to prepare a fault investigation report?
The Department does not recommend or endorse consultants. The Department does maintain a roster of approved testing agencies on the web site, which contains soil laboratories and geotechnical companies.
Can you recommend a consultant to prepare a soils, geology or soils and geology report?
The Department does not recommend or endorse consultants. The Department does maintain a roster of approved testing agencies on the web site, which contains soil laboratories and geotechnical companies.
A grading permit may be required depending on the scope of the project. Permits are almost always required in the Hillside Grading Area. Please contact the Grading Division.
