Grover Beach, CA: 38 Health Violations — 54/100 (2026)
2 ZIP codes · 3 water systems · Updated 2026-06-03
Although conditions vary by service area, Grover Beach's water systems collectively show below-average compliance within CA — health-based violations are documented throughout the city, and the overall grade reflects a pattern rather than isolated incidents.
How Grover Beach Compares
Data: EPA SDWIS Last verified: 2026-06-03
Grover Beach Water: The Quick Version
- Your city's water systems recorded 44 violations in the past 5 years.
- Average lead level: 0.0006 mg/L.
- Estimated remediation: $1,600 per household.
- CDC health risk index: 11.26.
Water Systems Serving Grover Beach
3 water systems are tracked federally in Grover Beach, CA. The top 3 providers collectively serve most residential addresses, but because they operate independently, infrastructure maintenance standards and compliance histories differ from one service zone to another.
Overview
We track water quality and home safety data for 2 ZIP codes in Grover Beach, California, covering 3 community water systems serving approximately 12,684 people.
2 of 2 ZIP codes (100%) have recorded EPA violations. 38 health-based violations documented.
Home Safety Score
Average Home Safety Score for Grover Beach: D (54/100)
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
Grover Beach water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0006 mg/L (EPA action level: 0.015 mg/L)
- 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.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Barium | Inorganic | 57 | 2 |
| Lead | Inorganic | 6 | 2 |
| Stage 1 DBP Rule | Treatment Technique | 3 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 93433 | C | 22 | 19 | City of Grover Beach Public Works Department |
| 93483 | D | 22 | 19 | City of Grover Beach Public Works Department |
All ZIP Codes in Grover 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.
CDC Health Data for Grover Beach
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
Key Contaminants Detected in Grover Beach
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Grover Beach: Remediation Cost in Perspective
Property equity in Grover Beach runs well ahead of estimated remediation costs — a cost-to-value ratio that sits in the low tier, meaning documented water and safety issues here are the kind homeowners can plan to address without treating the expense as a significant budget event relative to what their homes are worth.
Remediation costs in Grover Beach are relatively low compared to home values. The $700–$3,200 estimated range is a small fraction of median property value. Home values are 6% below the California average.
Protecting Children from Lead in Grover Beach
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.
Lead risk in Grover Beach appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Grover Beach
Flood activity in Grover Beach is neither negligible nor at the level of the highest-exposure areas in the NFIP dataset. The 8-claim record and 50% flood zone coverage suggest a community that has experienced recurrent events but has not faced the kind of sustained, severe exposure where water-supply contamination becomes a primary public health concern. It sits in a middle range where flood history merits inclusion in any complete local water quality picture.
Grover Beach has a moderate flood history with 8 FEMA claims averaging $5,675 per payout. 50% 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>$1,600</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 Grover 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. Filters rated for Barium can reduce the most common contaminant found in Grover Beach's water.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Grover Beach, CA