Terrebonne, OR: 11 Violations — 89/100 (2026)
1 ZIP code · 5 water systems · Updated 2026-06-03
Water utilities in Terrebonne have maintained a consistent compliance record over recent monitoring periods — the city's above-average grade in OR reflects low violation rates and no systemic health concerns flagged in current data.
How Terrebonne Compares
Data: EPA SDWIS Last verified: 2026-06-03
Terrebonne Water: The Quick Version
- Your city's water systems recorded 11 violations in the past 5 years.
- Average lead level: 0.0045 mg/L.
- Homes built before 1986: 26% — older plumbing may contain lead solder.
- CDC health risk index: 11.77.
Water Systems Serving Terrebonne
3 independent water providers serve Terrebonne, OR — 5 systems appear in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Terrebonne, Oregon, covering 5 community water systems serving approximately 8,185 people.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Terrebonne: A (89/100)
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
Terrebonne water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0045 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)
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | 16 | 1 |
| Lead | Inorganic | 2 | 1 |
| Chlorate | Disinfection Byproducts | 2 | 1 |
| Stage 1 DBP Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 97760 | A | 11 | 0 | Crooked River Ranch Wtr Company |
All ZIP Codes in Terrebonne
- 97760 [A] — 11 violations
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 Terrebonne
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 Terrebonne
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Terrebonne's Housing Stock?
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
Although a small portion of Terrebonne's homes predate 1986, the median build year of 1994 indicates the majority of the city's residential plumbing was installed after lead solder was banned — which tends to reduce the plumbing-related component of lead exposure at the household level.
Most homes in Terrebonne 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.
Protecting Children from Lead in Terrebonne
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.
In Terrebonne, the older-stock footprint runs at 26% — a contained slice — and aggregate utility readings land safely under the EPA action mark. That keeps lead off the local priority list, with a one-faucet draw remaining the only direct read on a specific address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Terrebonne, OR