Redondo Beach, CA Water Safety: 59/100 (2026)
2 ZIP codes · 3 water systems · Updated 2026-06-03
Redondo Beach water quality is uneven — some service areas show clean compliance; others carry documented violations in CA EPA records.
How Redondo Beach Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Redondo Beach Residents
- Homes built before 1986: 77% — older plumbing may contain lead solder.
- Estimated remediation: $2,150 per household.
- CDC health risk index: 10.71.
Redondo Beach's Water Providers
3 water utilities share the residential service territory in Redondo Beach, CA — out of 3 total systems in federal records.
Overview
We track water quality and home safety data for 2 ZIP codes in Redondo Beach, California (population ~77,927), covering 3 community water systems serving approximately 416,620 people region-wide.
No EPA violations recorded across any ZIP codes in Redondo Beach — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Redondo Beach: C (59/100)
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
Redondo Beach water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Redondo Beach
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 2 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 90277 | C | TORRANCE-CITY, WATER DEPT. | 106,183 |
| 90278 | C | GSWC - SOUTHWEST | 277,740 |
All ZIP Codes in Redondo Beach
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.
Redondo Beach Community Health Snapshot
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
Redondo Beach Infrastructure Age
With 77% 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
Two dates define the high-risk tiers of residential plumbing from a lead standpoint: 1970, before which lead pipes were commonly installed for service connections, and 1986, before which lead solder was standard in copper plumbing. A median build year of 1969 places Redondo Beach's housing distribution well within that older risk zone. The bar chart above breaks down how much of the stock falls into each era — and the pre-1986 share alone represents more than half the residential inventory, making plumbing-era risk a defining characteristic of the local water safety picture.
Over half of homes in Redondo Beach 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.
How Remediation Costs Compare in Redondo Beach
Setting Redondo Beach remediation figures against its property market, the resulting ratio sits comfortably in the low tier — a classification that reflects the kind of household financial position where most homeowners can identify documented issues, schedule the work, and absorb the cost without it registering as a significant budget disruption.
Remediation costs in Redondo Beach are relatively low compared to home values. The $1,150–$3,350 estimated range is a small fraction of median property value. Home values are 90% above the California average.
Redondo Beach: Lead Risk & Vulnerable Populations
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.
Wherever 77% of local housing was built before solder rules changed — as is the case in Redondo Beach — a faucet-level sample closes the gap that aggregate utility data cannot.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Redondo Beach: Flood History & Water Damage Risk
Flood history in Redondo Beach spans 31 NFIP claims and 100% flood zone coverage — enough to place it in moderate-exposure territory where flood events are genuinely recurring rather than statistical outliers. That distinction matters for water quality assessment because the connection between flooding and water safety is not uniform across communities. In low-exposure areas, flooding rarely generates the conditions needed to compromise treatment or distribution infrastructure. In high-exposure areas, it can do so repeatedly. Moderate-exposure communities sit in between: flood events occur with enough frequency to make periodic infrastructure stress a reasonable concern, particularly for private well owners and residents in lower-elevation FEMA-designated zones.
Redondo Beach has a moderate flood history with 31 FEMA claims averaging $26,082 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$2,150</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Redondo Beach
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. With 77% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Redondo Beach, CA