Coastal Plain of Los Angeles – Santa Monica

Statistics

  • Basin Name
  • Coastal Plain of Los Angeles – Santa Monica
  • Basin Number
  • 4-011.01
  • SGMA Basin Priority
  • Medium
  • Critically Overdrafted
  • No
  • Hydrologic Region Name
  • South Coast
  • Counties
  • Los Angeles
  • Adjacent Basins
  • Coastal Plain of Los Angeles - Central 4-011.04, Coastal Plain of Los Angeles - West Coast 4-011.03, Coastal Plain of Los Angeles - Hollywood 4-011.02,

Basin Notes

At-A-Glance

Source: CA DWR
Source: CA DWR

California Water Library Documents About This Basin

Depth-dependent seismic sensing of groundwater recovery from the atmospheric-river storms of 2023

American Association for the Advancement of Science (AAAS) | February 13th, 2025

In early 2023, a series of intense atmospheric-river storms eased California’s historic drought, yet the spatiotemporal extent of groundwater recovery remains poorly un

View Document Download

Advancing Stormwater Capture for Greener Schools in Los Angeles

Pacific Institute | August 15th, 2024

In communities across the United States, schools provide an enriching and safe environment for children to learn and grow. Yet urban schools, particularly those serving

View Document Download

Los Angeles County’s Climate Cost Challenge

Center for Climate Integrity | April 2nd, 2024

Within the first two months of 2024, the City of Los Angeles had already exceeded its average annual rainfall, receiving nearly 15 inches of rain in back-to-back deluges.

View Document Download

Los Angeles County Water Plan 2023

Los Angeles County Department of Public Works (LACDPW) | December 5th, 2023

Over 200 agencies in Los Angeles County manage a complex network of water systems to meet the needs of our communities and environment. To achieve sustainability, resilie

View Document Download

Statement of Findings regarding the Approval of the Coastal Plain of Los Angeles – Santa Monica Subbasin Groundwater Sustainability Plan

California Department of Water Resources (DWR) | October 26th, 2023

View Document Download

Water Surplus and Drought Management Update - Conditions as of 11/29/2022

Metropolitan Water District of Southern California (MWD) | December 13th, 2022

View Document Download

Groundwater Sustainability Plan for the Santa Monica Groundwater Subbasin

Santa Monica Basin Groundwater Sustainability Agency | January 27th, 2022

The Santa Monica Basin Groundwater Sustainability Agency (GSA), which comprises the City of Santa Monica, the City of Los Angeles via its Department of Water and Power (L

View Document Download

Development of a Groundwater-Simulation Model in the Los Angeles Coastal Plain, Los Angeles County, California

U.S. Geological Survey (USGS) | September 28th, 2021

The Los Angeles Coastal Plain (LACP) covers about 580 square miles and is the largest coastal plain of semiarid southern California. The LACP is heavily developed with mo

View Document Download

Historical Ecology of the Los Angeles River Watershed and Environs, Infrastructure for a Comprehensive Analysis

University of Southern California (USC) | June 15th, 2020

View Document Download

Achievements in Conservation, Recycling, and Groundwater Recharge Covering Fiscal Year July 2018-June 2019

Metropolitan Water District of Southern California (MWD) | March 1st, 2020

View Document Download

Estimating Spatially and Temporally Varying Recharge and Runoff from Precipitation and Urban Irrigation in the Los Angeles Basin, California

U.S. Geological Survey (USGS) | October 6th, 2016

A daily precipitation-runoff model, referred to as the Los Angeles Basin watershed model (LABWM), was used to estimate recharge and runoff for a 5,047 square kilometer st

View Document Download

Final Groundwater Assessment Study: A Status Report on the Use of Groundwater in the Service Area of the Metropolitan Water District of Southern California

Metropolitan Water District of Southern California (MWD) | September 3rd, 2007

View Document Download

Los Angeles County Department of Public Works Hydrology Manual

Los Angeles County Department of Public Works (LACDPW) | January 30th, 2006

This manual establishes the Los Angeles County Department of Public Works' hydrologic design procedures and serves as a reference and training guide. This manual contains

View Document Download

Geohydrology, Geochemistry, and Ground-Water Simulation-Optimization of the Central and West Coast Basins, Los Angeles County, California By

U.S. Geological Survey (USGS) | January 3rd, 2003

Historical ground-water development of the Central and West Coast Basins in Los Angeles County, California through the first half of the 20th century caused large water-l

View Document Download

Water Supply Conditions in Southern California during 1958-1959, Volume II, Water Level Data, Central Coastal and Los Angeles Regions

California Department of Water Resources (DWR) | May 1st, 1961

View Document Download

Bulletin No. 39-58, Water Supply Conditions in Southern California during 1957-1958, Volume II, Precipitation and Water Level Data, Central Coastal and Los Angeles Regions

California Department of Water Resources (DWR) | August 1st, 1960

View Document Download

Bulletin No. 39-57, Water Supply Conditions in Southern California during 1956-1957, Volume II, Precipitation and Water Level Data Central Coastal and Los Angeles Regions

California Department of Water Resources (DWR) | June 16th, 1958

Bulletin No. 39-57 Volume I Bulletin No. 39-57 Volume III Bulletin No. 39-57 Volume IV

View Document Download

Bulletin No. 39-W, Southern California Area Investigation, Ground Water Levels and Precipitation Records in Los Angeles, San Gabriel and Santa Ana River Basins and Antelope Valley and Water Supply Summary for Southern Portion of California 1954

California Department of Water Resources (DWR) | June 1st, 1956

View Document Download

Bulletin No. 39-U, Southern California Area Investigation, Ground Water Levels and Precipitation Records in Los Angeles, San Gabriel, and Santa Ana River Basins and Antelope Valley and Water Supply Summary for Southern Portion of California 1952

California Department of Water Resources (DWR) | August 1st, 1955

View Document Download

Bulletin No. 39-V, Southern California Area Investigation, Ground Water Levels and Precipitation Records in Los Angeles, San Gabriel, and Santa Ana River Basins and Antelope Valley and Water Supply Summary for Southern Portion of California 1953

California Department of Water Resources (DWR) | August 1st, 1955

View Document Download

GSA Information