Templeton, CA Water Safety: 72/100 (2026)
1 ZIP code · 6 water systems · Updated 2026-06-03
Tap water monitoring data for Templeton shows a consistently clean picture in CA — few violations on record, compliance well above the median.
How Templeton Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Templeton Water
- Average lead level: 0.0096 mg/L.
- Homes built before 1986: 31% — older plumbing may contain lead solder.
- Estimated remediation: $2,100 per household.
- CDC health risk index: 11.26.
Who Supplies Your Water in Templeton
In Templeton, CA, residential water supply is distributed across multiple utilities rather than concentrated in one. The 3 leading providers out of 6 tracked systems each control their own infrastructure, file separate EPA compliance reports, and set independent rate schedules.
Overview
We track water quality and home safety data for 1 ZIP code in Templeton, California (population ~10,248), covering 6 community water systems serving approximately 42,260 people region-wide.
No EPA violations recorded across any ZIP codes in Templeton — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Templeton: B (72/100)
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
Templeton water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0096 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)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 93465 | B | Templeton Csd | 8,011 |
All ZIP Codes in Templeton
- 93465 [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.
Health Outcomes in Templeton
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
Housing & Infrastructure in Templeton
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Over the decades, Templeton accumulated housing from multiple construction periods. The median build year of 1995 places the midpoint of that stock near the 1986 threshold when lead solder in plumbing became federally prohibited — leaving a sizable share of homes on each side of that safety line.
Most homes in Templeton were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for Templeton Homeowners
Placing remediation in the context of Templeton's property market, the equity share is low — most homeowners here are weighing a financial commitment that fits comfortably within routine property planning, far from the threshold where remediation becomes a material equity decision rather than a standard upkeep consideration.
Remediation costs in Templeton are relatively low compared to home values. The $1,100–$3,400 estimated range is a small fraction of median property value. Home values are 19% above the California average.
Lead Exposure Risk for Children in Templeton
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 31% of the Templeton 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.
Flood & Climate Risk in Templeton
FEMA data shows 100% of Templeton's ZIP codes mapped into designated flood zones, paired with an NFIP record of 9 claims. That footprint places local flood exposure in the range where it warrants attention without rising to high-severity planning territory.
Templeton has a moderate flood history with 9 FEMA claims averaging $3,828 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>$2,100</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 Templeton, CA