San Bernardino County, California
14 active water systems in this county.
| Water System | Population Served | Source | Violations | Health-Based |
|---|---|---|---|---|
| Chino, City of | 86,435 | Surface Water Purchased | 13 | 0 |
| Needles, City of | 8,766 | Groundwater | 9 | 0 |
| Adelanto, City of | 39,930 | Groundwater | 8 | 0 |
| Upland, City of | 78,376 | Surface Water | 4 | 0 |
| Colton, City of | 46,525 | Groundwater | 3 | 0 |
| Loma Linda, City of | 25,129 | Groundwater | 3 | 0 |
| Redlands City Mud-water Div | 78,025 | Surface Water | 1 | 0 |
| Mojave Solar Project Alpha Power Plant | 45 | Groundwater | 1 | 0 |
| Mojave Solar Project Beta Power Plant | 45 | Groundwater | 1 | 0 |
| San Bernardino City | 214,665 | Groundwater | 0 | 0 |
| Ontario Municipal Utilities Company | 185,010 | Surface Water Purchased | 0 | 0 |
| Chino Hills, City of | 76,414 | Surface Water Purchased | 0 | 0 |
| Rialto, City of | 54,453 | Surface Water Purchased | 0 | 0 |
| Big Bear City Csd | 12,738 | Groundwater | 0 | 0 |