Best Perc Test in Riverside, CA
Compare 6 local perc test providers in Riverside. Verified listings with real contact info.
6 services listed
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Am/pac and Associates, Inc.
Call for NEW Address, 2900 Adams St suite c 35, RIVERSIDE
Monday: 8:45 AM – 4:45 PM | Tuesday: 8:45 AM – 4:45 PM | Wednesday: 8:45 AM – 4:45 PM | Thursday: 8:45 AM – 4:45 PM | Friday: 8:45 AM – 4:45 PM | Saturday: Closed | Sunday: Closed
2.9 ★
27 reviews
GeoMat Testing Laboratories, Inc.
9980 Indiana Ave #14, Riverside, CA 92503
Monday: 7:00 AM – 7:00 PM | Tuesday: 7:00 AM – 7:00 PM | Wednesday: 7:00 AM – 7:00 PM | Thursday: 7:00 AM – 7:00 PM | Friday: 7:00 AM – 7:00 PM | Saturday: 9:00 AM – 5:00 PM | Sunday: 9:00 AM – 5:00 PM
5 ★
2 reviews
West Coast Sanitation
17333 Van Buren Boulevard, Riverside, CA 92508
Monday: Open 24 hours | Tuesday: Open 24 hours | Wednesday: Open 24 hours | Thursday: Open 24 hours | Friday: Open 24 hours | Saturday: Open 24 hours | Sunday: Open 24 hours
2.9 ★
33 reviews
Noorzay Geotechnical Services
16531 Orangehaven Ln, Riverside, CA 92503
Monday: 8:00 AM – 5:00 PM | Tuesday: 8:00 AM – 5:00 PM | Wednesday: 8:00 AM – 5:00 PM | Thursday: 8:00 AM – 5:00 PM | Friday: 8:00 AM – 5:00 PM | Saturday: Closed | Sunday: Closed
4.7 ★
10 reviews
California Pumping & Sanitation, Inc
1057 S Washington Ave, San Bernardino, CA 92408
Monday: Open 24 hours | Tuesday: Open 24 hours | Wednesday: Open 24 hours | Thursday: Open 24 hours | Friday: Open 24 hours | Saturday: Open 24 hours | Sunday: Open 24 hours
4.5 ★
294 reviews
San Mina Engineering, Inc.
7231 Boulder Ave #195, Highland, CA 92346
Monday: 8:00 AM – 5:30 PM | Tuesday: 8:00 AM – 5:30 PM | Wednesday: 8:00 AM – 5:30 PM | Thursday: 8:00 AM – 5:30 PM | Friday: 8:00 AM – 5:30 PM | Saturday: 8:00 AM – 1:30 PM | Sunday: Closed
5 ★
19 reviews
Frequently Asked Questions
What is a perc test and why do I need one in California?
A perc test (percolation test) measures how quickly water drains through soil. It is required before installing any new septic system and is conducted under the oversight of your local board of health. State environmental regulations govern the soil evaluation and percolation testing process.
How much does a perc test cost in California?
A perc test typically costs $500 to $1,500, including soil profile evaluation. Municipal fees for health officer oversight add $100-$400. Total costs vary based on regional regulatory requirements and professional standards.
What happens if my property fails the perc test in California?
If conventional perc test results do not meet state standards, you may be able to install an alternative system (mound system, drip irrigation, FAST unit) if site conditions allow. In densely developed areas, failing lots may have no viable septic option, requiring connection to public sewer if available.
Who can perform a perc test in California?
Soil evaluations and perc tests must be conducted by a **California-licensed Professional Geologist (PG)**, **Professional Engineer (PE)**, or other qualified professional approved by your **county Environmental Health** department. The evaluation must be witnessed or accepted per your county's procedures.