Guinda, CA Water Safety: 73/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Residents of Guinda generally live with tap water that beats the CA safety average on key EPA compliance metrics.
How Guinda Compares
Data: EPA SDWIS Last verified: 2026-06-03
Guinda Water: The Quick Version
- Homes built before 1986: 98% — older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 9.83.
Water Systems Serving Guinda
Guinda, CA draws its water from one primary utility across 1 tracked system.
Overview
We track water quality and home safety data for 1 ZIP code in Guinda, California, covering 1 community water system serving approximately 374 people.
No EPA violations recorded across any ZIP codes in Guinda — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Guinda: B (73/100)
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
Guinda water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Guinda
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 95637 | B | CAMPERS INN - RV & GOLF COURSE | 140 |
All ZIP Codes in Guinda
- 95637 [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.
CDC Health Data for Guinda
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
How Old Is Guinda's Housing Stock?
With 98% 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
What does a median build year of 1944 mean for water safety in Guinda? It means the majority of the city's residential plumbing was installed before 1986, when lead solder was federally banned, and a large share may predate 1970, when lead pipes were commonly used — making plumbing age a central variable in household-level lead risk across much of the city.
Over half of homes in Guinda 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.
Guinda: Remediation Cost in Perspective
When estimated remediation is placed alongside median property values in Guinda, the resulting ratio is low — a finding consistent with a household financial perspective where documented issues can be addressed without a meaningful impact on overall equity position, making this market one of the more favorable contexts for remediation planning.
Remediation costs in Guinda are relatively low compared to home values. The $800–$1,800 estimated range is a small fraction of median property value. Home values are 37% above the California average.
Protecting Children from Lead in Guinda
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.
Before the federal solder ban, lead solder was a routine plumbing material, and 98% of the Guinda inventory was built in that earlier era — a share large enough to move household-level reads onto the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Guinda
Flood exposure in Guinda is meaningful by NFIP measures — 2 claims on record and 100% of ZIP codes carrying FEMA flood zone designations. That level of activity makes flood history a relevant factor when evaluating local water quality over time.
Guinda has a moderate flood history with 2 FEMA claims averaging $1,673 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>$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 Guinda, CA