Spring Valley, CA: 4 Violations — 92/100 (2026)
4 ZIP codes · 9 water systems · Updated 2026-06-03
Within Spring Valley, safety indicators for tap water remain above the CA median — documented violations are infrequent and the city's compliance record sits in the upper tier.
How Spring Valley Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Spring Valley Residents
- Your city's water systems recorded 4 violations in the past 5 years.
- Average lead level: 0.0034 mg/L.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 10.18.
Spring Valley's Water Providers
Residential addresses in Spring Valley, CA are served by 3 primary water providers out of 9 systems in federal records. Each system maintains separate infrastructure and files its own EPA compliance reports, so service conditions are not uniform across the city.
Overview
We track water quality and home safety data for 4 ZIP codes in Spring Valley, California (population ~73,468), covering 9 community water systems serving approximately 2,093,742 people region-wide.
4 of 4 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Spring Valley: A (92/100)
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
Spring Valley water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0034 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 4 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | 5 | 4 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 91976 | A | 1 | 0 | Otay Water District |
| 91977 | B | 1 | 0 | Otay Water District |
| 91978 | A | 1 | 0 | Otay Water District |
| 91979 | A | 1 | 0 | Otay Water District |
All ZIP Codes in Spring Valley
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.
Spring Valley 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
What's in Spring Valley's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Remediation Costs Compare in Spring Valley
Low proportionality — that's the Spring Valley picture when remediation costs are placed against typical home equity.
Remediation costs in Spring Valley are relatively low compared to home values. The $800–$1,800 estimated range is a small fraction of median property value. Home values are 16% below the California average.
Spring Valley: 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.
Lead risk in Spring Valley 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.
Spring Valley: Flood History & Water Damage Risk
NFIP records stretching across multiple decades show Spring Valley accumulating 89 claims and carrying 75% of its ZIP codes inside FEMA flood zones — evidence of meaningful exposure that extends beyond isolated incidents. The mechanisms linking flooding to water quality haven't changed: treatment facilities can be overwhelmed, wells can be infiltrated, and distribution systems can experience backflow. For a community at this exposure level, those mechanisms shift from hypothetical to periodically relevant.
Spring Valley has a moderate flood history with 89 FEMA claims averaging $11,262 per payout. 75% 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>$1,200</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.
Deep Dive Reports
Detailed analysis for Spring Valley, CA