Redding, CA: 5 Violations — 93/100 (2026)
5 ZIP codes · 9 water systems · Updated 2026-06-03
EPA compliance records for Redding tell a largely clear story: violation rates are low, health-based exceedances are uncommon, and the city's grade puts it well above average within CA.
How Redding Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Redding, CA
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Safety grade breakdown for Redding's 5 ZIP codes.
Key Facts for Redding Residents
- Your city's water systems recorded 5 violations in the past 5 years.
- Average lead level: 0.0021 mg/L.
- Homes built before 1986: 59% — older plumbing may contain lead solder.
- Estimated remediation: $2,000 per household.
- CDC health risk index: 13 — above typical levels.
Redding's Water Providers
At present, 3 utilities serve the bulk of Redding, CA's residential water connections out of 9 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 5 ZIP codes in Redding, California, covering 9 community water systems serving approximately 112,200 people.
5 of 5 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Redding: A (93/100)
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
Redding water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0021 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): 5 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | 6 | 5 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 96001 | A | 1 | 0 | City of Redding |
| 96002 | A | 1 | 0 | City of Redding |
| 96003 | A | 1 | 0 | City of Redding |
| 96049 | A | 1 | 0 | City of Redding |
| 96099 | A | 1 | 0 | City of Redding |
All ZIP Codes in Redding
- 96001 [A] — 1 violation
- 96002 [A] — 1 violation
- 96003 [A] — 1 violation
- 96049 [A] — 1 violation
- 96099 [A] — 1 violation
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.
Redding 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 Redding's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Redding Infrastructure Age
With 59% 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. Redding's median build year of 1975 places it squarely in that category.
Over half of homes in Redding 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 Redding
Across Redding, the equity share taken up by estimated remediation is small — a favorable ratio for most property owners.
Remediation costs in Redding are relatively low compared to home values. The $1,333–$2,833 estimated range is a small fraction of median property value. Home values are 50% below the California average.
Redding: 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.
Even where utility-side monitoring meets Lead and Copper Rule requirements, the 59% pre-rule share in Redding 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.
Redding: Flood History & Water Damage Risk
Over the multi-decade window covered by the National Flood Insurance Program, Redding has accumulated 135 claims — a total that suggests more than isolated flood exposure. With 60% of ZIP codes in designated flood zones, the water-quality implications of flooding move from hypothetical to periodically relevant: treatment intake can be compromised, wells can be infiltrated, and distribution backflow can occur.
Redding has a moderate flood history with 135 FEMA claims averaging $14,064 per payout. 60% 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>$2,000</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 Redding, CA