Groundwater Basin Boundary Descriptions - Central Coast Region (3-XXX Basins)
This dataset includes the official groundwater basin boundary descriptions for California's 515 groundwater basins. To make locating descriptions easier, they have been organized by region. This resource contains descriptions for basins that start with the number three (3-XXX) indicating they are located in the Central Coast Region
Data files
Supporting files
| Data title and description | Access data | File details | Last updated |
|---|---|---|---|
3-001_Santa Cruz Mid-County_BasinBoundaryDescription This file contains the official basin boundary description for the Santa Cruz Mid-County (3-001) groundwater basin. | Download | PDF | 07/18/25 |
3-002.01_Corralitos_Pajaro Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Corralitos - Pajaro Valley (3-002.01) groundwater basin. | Download | PDF | 07/18/25 |
3-002.02_Corralitos_Purisima Highlands_BasinBoundaryDescription This file contains the official basin boundary description for the Corralitos - Purisima Highlands (3-002.02) groundwater basin. | Download | PDF | 07/18/25 |
3-003.01_Gilroy-Hollister Valley_Llagas Area_BasinBoundaryDescription This file contains the official basin boundary description for the Gilroy-Hollister Valley - Llagas Area (3-003.01) groundwater basin. | Download | PDF | 07/18/25 |
3-003.05_Gilroy-Hollister Valley_North San Benito_BasinBoundaryDescription This file contains the official basin boundary description for the Gilroy-Hollister Valley - North San Benito (3-003.05) groundwater basin. | Download | PDF | 07/18/25 |
3-004.01_Salinas Valley_180/400 Foot Aquifer_BasinBoundaryDescription This file contains the official basin boundary description for the Salinas Valley - 180/400 Foot Aquifer (3-004.01) groundwater basin. | Download | PDF | 07/18/25 |
3-004.02_Salinas Valley_East Side Aquifer_BasinBoundaryDescription This file contains the official basin boundary description for the Salinas Valley - East Side Aquifer (3-004.02) groundwater basin. | Download | PDF | 07/18/25 |
3-004.04_Salinas Valley_Forebay Aquifer_BasinBoundaryDescription This file contains the official basin boundary description for the Salinas Valley - Forebay Aquifer (3-004.04) groundwater basin. | Download | PDF | 07/18/25 |
3-004.05_Salinas Valley_Upper Valley Aquifer_BasinBoundaryDescription This file contains the official basin boundary description for the Salinas Valley - Upper Valley Aquifer (3-004.05) groundwater basin. | Download | PDF | 07/18/25 |
3-004.06_Salinas Valley_Paso Robles Area_BasinBoundaryDescription This file contains the official basin boundary description for the Salinas Valley - Paso Robles Area (3-004.06) groundwater basin. | Download | PDF | 07/18/25 |
3-004.08_Salinas Valley_Seaside Area_BasinBoundaryDescription This file contains the official basin boundary description for the Salinas Valley - Seaside Area (3-004.08) groundwater basin. | Download | PDF | 07/18/25 |
3-004.09_Salinas Valley_Langley Area_BasinBoundaryDescription This file contains the official basin boundary description for the Salinas Valley - Langley Area (3-004.09) groundwater basin. | Download | PDF | 07/18/25 |
3-004.10_Salinas Valley_Monterey_BasinBoundaryDescription This file contains the official basin boundary description for the Salinas Valley - Monterey (3-004.10) groundwater basin. | Download | PDF | 07/18/25 |
3-004.11_Salinas Valley_Atascadero Area_BasinBoundaryDescription This file contains the official basin boundary description for the Salinas Valley - Atascadero Area (3-004.11) groundwater basin. | Download | PDF | 07/18/25 |
3-005_Cholame Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Cholame Valley (3-005) groundwater basin. | Download | PDF | 07/18/25 |
3-006_Lockwood Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Lockwood Valley (3-006) groundwater basin. | Download | PDF | 07/18/25 |
3-007_Carmel Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Carmel Valley (3-007) groundwater basin. | Download | PDF | 07/18/25 |
3-008.01_Los Osos Valley_Los Osos Area_BasinBoundaryDescription This file contains the official basin boundary description for the Los Osos Valley - Los Osos Area (3-008.01) groundwater basin. | Download | PDF | 07/18/25 |
3-008.02_Los Osos Valley_Warden Creek_BasinBoundaryDescription This file contains the official basin boundary description for the Los Osos Valley - Warden Creek (3-008.02) groundwater basin. | Download | PDF | 07/18/25 |
3-009_San Luis Obispo Valley_BasinBoundaryDescription This file contains the official basin boundary description for the San Luis Obispo Valley (3-009) groundwater basin. | Download | PDF | 07/18/25 |
3-012.01_Santa Maria_Santa Maria_BasinBoundaryDescription This file contains the official basin boundary description for the Santa Maria - Santa Maria (3-012.01) groundwater basin. | Download | PDF | 07/18/25 |
3-012.02_Santa Maria_Arroyo Grande_BasinBoundaryDescription This file contains the official basin boundary description for the Santa Maria - Arroyo Grande (3-012.02) groundwater basin. | Download | PDF | 07/18/25 |
3-013_Cuyama Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Cuyama Valley (3-013) groundwater basin. | Download | PDF | 07/18/25 |
3-014_San Antonio Creek Valley_BasinBoundaryDescription This file contains the official basin boundary description for the San Antonio Creek Valley (3-014) groundwater basin. | Download | PDF | 07/18/25 |
3-015_Santa Ynez River Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Santa Ynez River Valley (3-015) groundwater basin. | Download | PDF | 07/18/25 |
3-016_Goleta_BasinBoundaryDescription This file contains the official basin boundary description for the Goleta (3-016) groundwater basin. | Download | PDF | 07/18/25 |
3-017_Santa Barbara_BasinBoundaryDescription This file contains the official basin boundary description for the Santa Barbara (3-017) groundwater basin. | Download | PDF | 07/18/25 |
3-018_Carpinteria_BasinBoundaryDescription This file contains the official basin boundary description for the Carpinteria (3-018) groundwater basin. | Download | PDF | 07/18/25 |
3-019_Carrizo Plain_BasinBoundaryDescription This file contains the official basin boundary description for the Carrizo Plain (3-019) groundwater basin. | Download | PDF | 07/18/25 |
3-020_Ano Nuevo Area_BasinBoundaryDescription This file contains the official basin boundary description for the Ano Nuevo Area (3-020) groundwater basin. | Download | PDF | 07/18/25 |
3-022_Santa Ana Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Santa Ana Valley (3-022) groundwater basin. | Download | PDF | 07/18/25 |
3-023_Upper Santa Ana Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Upper Santa Ana Valley (3-023) groundwater basin. | Download | PDF | 07/18/25 |
3-024_Quien Sabe Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Quien Sabe Valley (3-024) groundwater basin. | Download | PDF | 07/18/25 |
3-026_West Santa Cruz Terrace_BasinBoundaryDescription This file contains the official basin boundary description for the West Santa Cruz Terrace (3-026) groundwater basin. | Download | PDF | 07/18/25 |
3-027_Santa Margarita_BasinBoundaryDescription This file contains the official basin boundary description for the Santa Margarita (3-027) groundwater basin. | Download | PDF | 07/18/25 |
3-028_San Benito River Valley_BasinBoundaryDescription This file contains the official basin boundary description for the San Benito River Valley (3-028) groundwater basin. | Download | PDF | 07/18/25 |
3-029_Dry Lake Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Dry Lake Valley (3-029) groundwater basin. | Download | PDF | 07/18/25 |
3-030_Bitter Water Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Bitter Water Valley (3-030) groundwater basin. | Download | PDF | 07/18/25 |
3-031_Hernandez Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Hernandez Valley (3-031) groundwater basin. | Download | PDF | 07/18/25 |
3-032_Peach Tree Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Peach Tree Valley (3-032) groundwater basin. | Download | PDF | 07/18/25 |
3-033_San Carpoforo Valley_BasinBoundaryDescription This file contains the official basin boundary description for the San Carpoforo Valley (3-033) groundwater basin. | Download | PDF | 07/18/25 |
3-034_Arroyo De La Cruz Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Arroyo De La Cruz Valley (3-034) groundwater basin. | Download | PDF | 07/18/25 |
3-035_San Simeon Valley_BasinBoundaryDescription This file contains the official basin boundary description for the San Simeon Valley (3-035) groundwater basin. | Download | PDF | 07/18/25 |
3-036_Santa Rosa Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Santa Rosa Valley (3-036) groundwater basin. | Download | PDF | 07/18/25 |
3-037_Villa Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Villa Valley (3-037) groundwater basin. | Download | PDF | 07/18/25 |
3-038_Cayucos Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Cayucos Valley (3-038) groundwater basin. | Download | PDF | 07/18/25 |
3-039_Old Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Old Valley (3-039) groundwater basin. | Download | PDF | 07/18/25 |
3-040_Toro Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Toro Valley (3-040) groundwater basin. | Download | PDF | 07/18/25 |
3-041_Morro Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Morro Valley (3-041) groundwater basin. | Download | PDF | 07/18/25 |
3-042_Chorro Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Chorro Valley (3-042) groundwater basin. | Download | PDF | 07/18/25 |
3-043_Rinconada Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Rinconada Valley (3-043) groundwater basin. | Download | PDF | 07/18/25 |
3-044_Pozo Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Pozo Valley (3-044) groundwater basin. | Download | PDF | 07/18/25 |
3-045_Huasna Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Huasna Valley (3-045) groundwater basin. | Download | PDF | 07/18/25 |
3-046_Rafael Valley_BasinBoundaryDescription This file contains the official basin boundary description for the Rafael Valley (3-046) groundwater basin. | Download | PDF | 07/18/25 |
3-047_Big Spring Area_BasinBoundaryDescription This file contains the official basin boundary description for the Big Spring Area (3-047) groundwater basin. | Download | PDF | 07/18/25 |
3-049_Montecito_BasinBoundaryDescription This file contains the official basin boundary description for the Montecito (3-049) groundwater basin. | Download | PDF | 07/18/25 |
3-051_Majors Creek_BasinBoundaryDescription This file contains the official basin boundary description for the Majors Creek (3-051) groundwater basin. | Download | PDF | 07/18/25 |
3-052_Needle Rock Point_BasinBoundaryDescription This file contains the official basin boundary description for the Needle Rock Point (3-052) groundwater basin. | Download | PDF | 07/18/25 |
3-053_Foothill_BasinBoundaryDescription This file contains the official basin boundary description for the Foothill (3-053) groundwater basin. | Download | PDF | 07/18/25 |