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Septic Test Drill Map for Sacramento County

Please enter your street number and street name and you'll be shown the Septic System Test Drill Requirements for the address you enter
Lot Size:
Test Drill Requirement:

Septic Test Drill Requirement Areas

No Test Drill Required
40 Foot Deep Leaching Pits Required
Perc Test and System Design Required
Test Drill and System Design Required


  • If parcel is located in a subdivision approved for septic systems, check the Department's subdivision data for individual lot requirements. If subdivision has septic system design on file, soil studies are not required.
  • Dual leaching field systems are required on lots of 1.0 acres or less when an individual water well is required. Lots with public water require dual systems if the total acreage is 1/2 (.5) acres or less.