Report Finds Weak Spots in the Los Angeles Water Grid

A "water atlas" compiled by UCLA's Luskin Center for Innovation reveals the patchwork that is Los Angeles' water supply system. Neighborhoods reliant on small providers and groundwater sources may be vulnerable.

1 minute read

May 30, 2015, 9:00 AM PDT

By Philip Rojc @PhilipRojc


drinking fountain

Katherine Johnson / Flickr

Along with continuing drought, Los Angeles faces the challenges of decentralized water infrastructure. The city's "water grid" is a web of services ranging from local suppliers serving hundreds to the LADWP, with over 4 million customers. 

Put together by the UCLA Luskin Center for Innovation, "the Los Angeles County Community Water System Atlas and Policy Guide uses maps and graphs to powerful effect to show the spectrum of these system types, and how they're equipped to handle severe water conditions."

CityLab's Laura Bliss writes, "Across the board, some 75 percent of these systems evidence some kind of supply vulnerability—whether due to their small size, dependence on a single water supply, contamination in local groundwater, or a projected increase in super hot days in the years to come."

While contaminated water isn't a problem for most residents, substandard water systems can have severe local impacts. "Individuals from disadvantaged communities—marked by linguistic isolation, poverty, and high unemployment—are more likely to suffer health impacts from drinking low-quality water than those from non-disadvantaged communities."

Friday, May 15, 2015 in CityLab

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Concrete Brutalism building with slanted walls and light visible through an atrium.

What ‘The Brutalist’ Teaches Us About Modern Cities

How architecture and urban landscapes reflect the trauma and dysfunction of the post-war experience.

February 28, 2025 - Justin Hollander

Complete Street

‘Complete Streets’ Webpage Deleted in Federal Purge

Basic resources and information on building bike lanes and sidewalks, formerly housed on the government’s Complete Streets website, are now gone.

February 27, 2025 - Streetsblog USA

Green electric Volkswagen van against a beach backdrop.

The VW Bus is Back — Now as an Electric Minivan

Volkswagen’s ID. Buzz reimagines its iconic Bus as a fully electric minivan, blending retro design with modern technology, a 231-mile range, and practical versatility to offer a stylish yet functional EV for the future.

March 3, 2025 - ABC 7 Eyewitness News

View of mountains with large shrubs in foreground in Altadena, California.

Healing Through Parks: Altadena’s Path to Recovery After the Eaton Fire

In the wake of the Eaton Fire, Altadena is uniting to restore Loma Alta Park, creating a renewed space for recreation, community gathering, and resilience.

March 9 - Pasadena NOw

Aerial view of single-family homes with swimming pools in San Diego, California.

San Diego to Rescind Multi-Unit ADU Rule

The city wants to close a loophole that allowed developers to build apartment buildings on single-family lots as ADUs.

March 9 - Axios

Close-up of row of electric cars plugged into chargers at outdoor station.

Electric Vehicles for All? Study Finds Disparities in Access and Incentives

A new UCLA study finds that while California has made progress in electric vehicle adoption, disadvantaged communities remain underserved in EV incentives, ownership, and charging access, requiring targeted policy changes to advance equity.

March 9 - UCLA Luskin Center for Innovation