San Luis Obispo County, California
14 active water systems in this county.
| Water System | Population Served | Source | Violations | Health-Based |
|---|---|---|---|---|
| Zoo Med-winterhaven | 85 | Groundwater | 1 | 0 |
| Brecon Estate | 9,012 | Groundwater | 0 | 0 |
| Grosso Kresser Winery | 3,606 | Groundwater | 0 | 0 |
| Santa Margarita Ranch Headquarters | 362 | Groundwater | 0 | 0 |
| Jack Ready Imagination Park | 200 | Groundwater | 0 | 0 |
| Gran Cielo Mutual Water Company | 139 | Groundwater | 0 | 0 |
| Courtside Cellars | 125 | Groundwater | 0 | 0 |
| Adelaida Vineyards & Winery | 77 | Groundwater | 0 | 0 |
| Booker Winery | 56 | Groundwater | 0 | 0 |
| Carpenter Winery | 54 | Groundwater | 0 | 0 |
| Mt. Olive Organic Farm | 51 | Groundwater | 0 | 0 |
| Jada Vineyard and Winery | 40 | Groundwater | 0 | 0 |
| Chamisal Vineyards | 40 | Groundwater | 0 | 0 |
| Caelesta Winery | 30 | Groundwater | 0 | 0 |