Best Well Water Testing in Riverside, CA
Compare 29 local well water testing providers in Riverside. Verified listings with real contact info.
29 services listed
Quick Compare
Alkaline Water 4 Life
3941 Brockton Ave #10, Riverside, CA 92501
Monday: 7:00 AM – 5:00 PM | Tuesday: 7:00 AM – 5:00 PM | Wednesday: 7:00 AM – 5:00 PM | Thursday: 7:00 AM – 5:00 PM | Friday: 7:00 AM – 5:00 PM | Saturday: Closed | Sunday: Closed
5 ★
3 reviews
Boehm Remediation
4163 Chestnut St, Riverside, CA 92501
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
5 ★
3 reviews
EcoWater SoCal
2025 Chicago Ave # A5, Riverside, CA 92507
Monday: 7:30 AM – 5:30 PM | Tuesday: 7:30 AM – 5:30 PM | Wednesday: 7:30 AM – 5:30 PM | Thursday: 7:30 AM – 5:30 PM | Friday: 7:30 AM – 5:30 PM | Saturday: Closed | Sunday: Closed
4.9 ★
9 reviews
Lifetime Solutions
Unit E2, 1299 Columbia Ave, RIVERSIDE
Monday: 8:30 AM – 5:00 PM | Tuesday: 8:30 AM – 5:00 PM | Wednesday: 8:30 AM – 5:00 PM | Thursday: 8:30 AM – 5:00 PM | Friday: 8:30 AM – 5:00 PM | Saturday: Closed | Sunday: Closed
4.8 ★
177 reviews
Fastest Labs of Riverside
1280 Palmyrita Ave Suite G, Riverside, CA 92507
Monday: 9:00 AM – 5:00 PM | Tuesday: 9:00 AM – 5:00 PM | Wednesday: 9:00 AM – 5:00 PM | Thursday: 9:00 AM – 5:00 PM | Friday: 9:00 AM – 5:00 PM | Saturday: Closed | Sunday: Closed
5 ★
94 reviews
Best Drilling and Pump, Inc.
1640 Pellisier Rd, Colton, CA 92324
Monday: 8:00 AM – 4:00 PM | Tuesday: 8:00 AM – 4:00 PM | Wednesday: 8:00 AM – 4:00 PM | Thursday: 8:00 AM – 4:00 PM | Friday: 8:00 AM – 4:00 PM | Saturday: Closed | Sunday: Closed
3.8 ★
6 reviews
Pure Maintenance of Southern California, LLC
5041 La Mart Dr # 230, Riverside, CA 92507
Monday: 7:00 AM – 12:00 AM | Tuesday: 7:00 AM – 12:00 AM | Wednesday: 7:00 AM – 12:00 AM | Thursday: 7:00 AM – 12:00 AM | Friday: 7:00 AM – 12:00 AM | Saturday: Closed | Sunday: Closed
4.9 ★
218 reviews
Clinical Laboratory of San Bernardino
21881 Barton Rd, Grand Terrace, CA 92313
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: 8:30 – 11:30 AM | Sunday: 8:30 – 11:30 AM
4.3 ★
14 reviews
Hague Quality Water Of The Inland Empire
7171 Jurupa Ave STE 28, Riverside, CA 92504
Monday: 8:00 AM – 9:00 PM | Tuesday: 8:00 AM – 9:00 PM | Wednesday: 8:00 AM – 9:00 PM | Thursday: 8:00 AM – 9:00 PM | Friday: 8:00 AM – 9:00 PM | Saturday: 8:00 AM – 1:00 PM | Sunday: Closed
5 ★
14 reviews
SHINE HOME ENVIRONMENTAL
8395 Magnolia Ave, Riverside, CA 92504
Monday: 7:00 AM – 8:00 PM | Tuesday: 7:00 AM – 8:00 PM | Wednesday: 7:00 AM – 8:00 PM | Thursday: 7:00 AM – 8:00 PM | Friday: 7:00 AM – 5:00 PM | Saturday: Closed | Sunday: 7:00 AM – 8:00 PM
5 ★
8 reviews
Babcock Laboratories
6100 Quail Valley Ct, Riverside, CA 92507
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
4.1 ★
39 reviews
THE ABSOLUTE WATER & OTHER SER
1091 S Mt Vernon Ave unit e, Colton, CA 92324
Monday: 10:00 AM – 6:00 PM | Tuesday: 10:00 AM – 6:00 PM | Wednesday: 10:00 AM – 6:00 PM | Thursday: 10:00 AM – 6:00 PM | Friday: 10:00 AM – 6:00 PM | Saturday: Closed | Sunday: Closed
4.9 ★
66 reviews
Advanced Chemical Service Inc.
9800 Indiana Ave #1, Riverside, CA 92503
Monday: 7:00 AM – 3:00 PM | Tuesday: 7:00 AM – 3:00 PM | Wednesday: 7:00 AM – 3:00 PM | Thursday: 7:00 AM – 3:00 PM | Friday: 7:00 AM – 3:00 PM | Saturday: Closed | Sunday: Closed
3.5 ★
4 reviews
BSK Associates
350 E Commercial Rd #110, San Bernardino, CA 92408
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
5 ★
1 reviews
Coast Water System
10466 Redwood Ave, Fontana, CA 92337
Monday: 9:00 AM – 6:00 PM | Tuesday: 9:00 AM – 6:00 PM | Wednesday: 9:00 AM – 6:00 PM | Thursday: 9:00 AM – 6:00 PM | Friday: 9:00 AM – 6:00 PM | Saturday: Closed | Sunday: Closed
4 ★
70 reviews
Aqua-Metric Sales Company
4050 Flat Rock Rd, Riverside, CA 92505
Monday: 7:30 AM – 4:30 PM | Tuesday: 7:30 AM – 4:30 PM | Wednesday: 7:30 AM – 4:30 PM | Thursday: 7:30 AM – 4:30 PM | Friday: 7:30 AM – 4:30 PM | Saturday: Closed | Sunday: Closed
5 ★
2 reviews
be safe water
385 Richey Cir, Corona, CA 92879
Culligan Water of Ontario
1925 Burgundy Pl, Ontario, CA 91761
Monday: 9:00 AM – 5:00 PM | Tuesday: 9:00 AM – 5:00 PM | Wednesday: 9:00 AM – 5:00 PM | Thursday: 9:00 AM – 5:00 PM | Friday: 9:00 AM – 5:00 PM | Saturday: Closed | Sunday: Closed
4.7 ★
789 reviews
Waterrific
765 N Main St, Corona, CA 92878
Monday: 9:00 AM – 6:00 AM | Tuesday: 9:00 AM – 6:00 AM | Wednesday: 9:00 AM – 6:00 AM | Thursday: 9:00 AM – 6:00 AM | Friday: 9:00 AM – 6:00 AM | Saturday: 10:00 AM – 4:00 AM | Sunday: Closed
5 ★
59 reviews
Fenestration Testing Lab (FTL)
10235 8th St, Rancho Cucamonga, CA 91730
Monday: 8:00 AM – 4:00 PM | Tuesday: 8:00 AM – 4:00 PM | Wednesday: 8:00 AM – 4:00 PM | Thursday: 8:00 AM – 4:00 PM | Friday: 8:00 AM – 4:00 PM | Saturday: Closed | Sunday: Closed
4.5 ★
4 reviews
Diamond Pure Water Filtration
9155 Archibald Ave #303, Rancho Cucamonga, CA 91730
Monday: 8:00 AM – 6:00 PM | Tuesday: 8:00 AM – 6:00 PM | Wednesday: 8:00 AM – 6:00 PM | Thursday: 8:00 AM – 6:00 PM | Friday: 8:00 AM – 6:00 PM | Saturday: 8:00 AM – 2:00 PM | Sunday: Closed
4.3 ★
28 reviews
Nuvia Water Technologies Inc.
170 Vander St B, Corona, CA 92878
Monday: 8:00 AM – 9:00 PM | Tuesday: 8:00 AM – 9:00 PM | Wednesday: 8:00 AM – 9:00 PM | Thursday: 8:00 AM – 9:00 PM | Friday: 8:00 AM – 9:00 PM | Saturday: 9:00 AM – 3:00 PM | Sunday: Closed
4.6 ★
1528 reviews
Sedna Water Co.
7828 Haven Ave, Rancho Cucamonga, CA 91730
Monday: 9:00 AM – 6:00 PM | Tuesday: 9:00 AM – 6:00 PM | Wednesday: 9:00 AM – 6:00 PM | Thursday: 9:00 AM – 6:00 PM | Friday: 9:00 AM – 6:00 PM | Saturday: 9:00 AM – 6:00 PM | Sunday: Closed
4.9 ★
177 reviews
Western Analytical Laboratories, Inc.
14125 Telephone Ave STE 7, Chino, CA 91710
Monday: 9:00 AM – 5:30 PM | Tuesday: 9:00 AM – 5:30 PM | Wednesday: 9:00 AM – 5:30 PM | Thursday: 9:00 AM – 5:30 PM | Friday: 9:00 AM – 5:30 PM | Saturday: Closed | Sunday: Closed
4 ★
3 reviews
Fidelis Elite Systems
560 Birch St # 6, Lake Elsinore, CA 92530
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: 8:00 AM – 5:00 PM | Sunday: Closed
4.1 ★
461 reviews
Eurofins Environment Testing- Pomona
941 Corporate Center Dr, Pomona, CA 91768
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
4.6 ★
8 reviews
Eurofins Eaton Analytical
941 Corporate Center Dr, Pomona, CA 91768
5 ★
1 reviews
Waypoint Analytical California
4741 E Hunter Ave Suite A, Anaheim, CA 92807
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
4.8 ★
6 reviews
Aqua Works
1123 S State St, Hemet, CA 92543
Monday: 9:00 AM – 6:00 PM | Tuesday: 9:00 AM – 6:00 PM | Wednesday: 9:00 AM – 6:00 PM | Thursday: 9:00 AM – 6:00 PM | Friday: 9:00 AM – 6:00 PM | Saturday: 9:00 AM – 2:00 PM | Sunday: Closed
4.7 ★
30 reviews
Frequently Asked Questions
What should I test my well water for in California?
**CDPH** and **CalEPA** recommend testing annually for coliform bacteria and nitrates at minimum. Given regional contamination history in parts of California, also test for **TCE/PCE**, **hexavalent chromium**, **perchlorate**, and **1,2,3-TCP**, plus lead, arsenic, volatile organic compounds (VOCs), iron, manganese, and pH. Check with **CDPH**, **CalEPA**, and your **county Environmental Health** office for contaminants of concern in your area.
How often should well water be tested in California?
Test annually for bacteria and nitrates. Comprehensive testing every 2-3 years is recommended. Test immediately after any flooding event, if you notice changes in taste, odor, or color, or if you receive a notice about contamination in your area from local authorities.
Where can I get my well water tested in California?
Use a state-certified laboratory. Your local board of health, state university cooperative extension office, or environmental watch program can provide sampling kits and recommend certified labs. Some well service companies also partner with certified labs.
How much does well water testing cost in California?
Basic bacterial and nitrate testing costs $75-$150. A standard potable water panel (bacteria, nitrates, pH, iron, manganese, hardness) costs $150-$300. Extended testing for specific contaminants adds $150-$300 per sample. A comprehensive panel including multiple contaminant types costs $400-$700.