Water Quality: San Bernardino, CA
12 water systems • 377,910 people served
Multiple Health ViolationsWater Quality Summary
San Bernardino has 470 health-based violations on record, meaning one or more contaminants were found above EPA-established safe levels. Contaminants involved: Barium, Contaminant 4109, Disinfection Byproducts, Gross Alpha, Haloacetic Acids, Lead. In total, 544 violations are on record for 12 water systems serving 377,910 people.
Contaminants Found
Water Systems Serving San Bernardino
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| SAN BERNARDINO CITY | CA3610039 | Groundwater | 214,665 | 0 |
| SAN BERNARDINO VALLEY WD | CA3610019 | Groundwater | 109,608 | 0 |
| SBDNO COUNTY SERVICE AREA 64 | CA3610121 | Groundwater | 14,911 | 5 |
| MUSCOY MWC NO. 1 | CA3610031 | Groundwater | 13,000 | 26 |
| SBDNO COUNTY SERVICE AREA 70J | CA3610125 | Groundwater | 12,843 | 1 |
| GLEN HELEN WATER SYSTEM | CA3600108 | Groundwater | 5,900 | 0 |
| GILBERT STREET COMPLEX | CA3600215 | Groundwater | 3,833 | 2 |
| SBDNO COUNTY SERVICE AREA 70 CEDAR GLEN | CA3610026 | Surface Water | 1,240 | 44 |
| CSA 70 W-3 HACIENDA | CA3600114 | Groundwater | 611 | 86 |
| CSA 42 ORO GRANDE | CA3600220 | Groundwater | 529 | 0 |
| CSA 70 W-4 PIONEERTOWN | CA3600196 | Groundwater | 470 | 296 |
| CSA 70-F MORONGO | CA3600226 | Groundwater | 300 | 84 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.