Del Rey, CA Water Safety: 72/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
Water systems serving Del Rey hold a strong EPA compliance record — the city places among the better-performing areas in CA with few health-based violations on file.
How Del Rey Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Del Rey Water
- Homes built before 1986: 55% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 12.33 — above typical levels.
Who Supplies Your Water in Del Rey
At present, 2 utilities serve the bulk of Del Rey, CA's residential water connections out of 2 systems active in the area, spread across independent providers with separate infrastructure and compliance obligations.
Overview
We track water quality and home safety data for 1 ZIP code in Del Rey, California (population ~2,173), covering 2 community water systems serving approximately 16,067 people region-wide.
No EPA violations recorded across any ZIP codes in Del Rey — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Del Rey: B (72/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Del Rey water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Del Rey
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 93616 | B | Del Rey Community Serv District | 1,491 |
All ZIP Codes in Del Rey
- 93616 [B]
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
Health Outcomes in Del Rey
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Housing & Infrastructure in Del Rey
With 55% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
When more than half a city's housing predates the 1986 federal ban on lead solder, plumbing-era lead risk becomes a citywide concern rather than an exception. Del Rey's median build year of 1986 places it squarely in that category.
Over half of homes in Del Rey were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for Del Rey Homeowners
Equity impact data for Del Rey lands in the favorable tier — remediation claims a small slice of what properties here are worth.
Remediation costs in Del Rey are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 70% below the California average.
Lead Exposure Risk for Children in Del Rey
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Even where utility-side monitoring meets Lead and Copper Rule requirements, the 55% pre-rule share in Del Rey keeps interior-plumbing variation as a household-level question that aggregate data cannot resolve.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Del Rey, CA