Westside & Beach: city lines that change who you call

Stories filed for this part of town

• Westside & Beach: city lines that change who you call
• After a wildfire: your tap, the ash and the gas

Your address may say L.A. while your utility says otherwise, or the reverse. On the Westside, read the name on your bill before you read any rule.

Who supplies your water here

Most of this edition is LADWP's Western area, listed in its water quality report: Brentwood, Pacific Palisades, Palisades Highlands, Castellamare, Venice, Mar Vista, Palms, Sawtelle, Westwood, Century City, Playa del Rey and Westchester among others. Western water is Los Angeles Aqueduct and State Water Project supply. The aqueduct plant tested at 6.0 grains per gallon in 2025.

Santa Monica is a separate city and a separate utility. Its report says about 75 percent of its water is local groundwater and 25 percent comes from the Metropolitan Water District. This paper did not resolve a hardness figure from that report, so read it directly.

LADWP lists West Hollywood and Culver City with an asterisk, meaning sources may fluctuate, and serves each only in part. Check your bill.

What kind of houses are here

The mix runs from beach cottages to postwar modern. Santa Monica's Third Street Neighborhood Historic District has 38 contributing buildings from 1875 to 1930, including 27 bungalows built between 1903 and 1915.

Venice opened as Abbot Kinney's resort in 1905 and joined Los Angeles in 1925. The Brentwood and Pacific Palisades survey dates the Palisades' founding to 1921, Castellammare to 1926 and Riviera Ranch to 1939. Postwar growth filled in the older subdivisions. In Mar Vista, the Mar Vista Tract of 1948 finished with 52 Modern houses.

So use before 1930 or the 1950s and 1960s as your starting page, knowing that later owners may have replaced the pipes. Some Palisades lots are being rebuilt after the 2025 fire.

What tends to go wrong here

These are the issues the setting raises; nobody keeps a neighborhood tally.

• Fire notices. LADWP's Palisades Do Not Drink notice ran from January 10, 2025 until March 7, 2025, when it cleared the last taps. During such a notice, boiling or filtering doesn't help. After a wildfire covers water, ash and gas.
• Salt air. Exposed metal near the ocean corrodes faster; hose bibs and outdoor pipe are where you would see it. This paper knows of no agency figure for how much, so treat it as something to look for, and don't start cutting into old pipe to find out.
• Sewer rules that change at the line. Los Angeles owners keep up the lateral out to the main (who owns your sewer lateral) and can apply for camera and repair rebates. Santa Monica, Culver City and West Hollywood answer for themselves. Ask them.
• Older pipes. A beach bungalow can still hold galvanized pipe. Mature trees have their own root story.
• Selling. LADWP's retrofit on resale rule applies to property sold in L.A., which doesn't include Santa Monica.

Neighborhood stops

1. Santa MonicaIts own city utilityFrom bungalows onMostly local groundwater.
2. VeniceLADWP (Western list)1905 to 1930, oftenCity of Los Angeles rules apply.
3. Mar VistaLADWP (Western list)1940s, 1950s, oftenModern tract houses in one corner.
4. Pacific PalisadesLADWP (Western list)Since the 1920s, plus rebuildsFollow current LADWP notices.
5. Culver City*LADWP for part; see your billAll sortsSupply may shift.
6. West Hollywood*LADWP for part; see your billAll sortsAnother supplier covers part of it.

Who handles this

• LA SanitationMains and rebates, Los Angeles side only
• LADWPWestern area water and notices
• LADBSPlumbing permits, Los Angeles side only
• City of Santa MonicaWater and sewers inside the city

Questions that come up

Is a house near the line in Santa Monica or Los Angeles, for plumbing purposes?

Your water bill and property tax record will tell you. A Santa Monica mailing address or a Westside freeway exit won't.

Is Palisades tap water safe now?

LADWP's all-clear came on March 7, 2025. Follow any notice issued since, and LADWP's guidance for a house being rebuilt.

Why print no hardness for Santa Monica?

Because this paper could not pin the figure down from the city's report. Read the report itself rather than a figure quoted elsewhere.

What this was checked against

1. Western list, aqueduct figure: LADWP report
2. Santa Monica supply: City water report, June 2025
3. Third Street district: Santa Monica Conservancy
4. Palisades and Brentwood history: Survey report, LA Conservancy copy
5. Mar Vista Tract: Conservancy page

Sources read in November 2026. Rules and prices change: check the agency before you act.