CITY REPORT OR

Enterprise, OR: 21 Violations — 81/100 (2026)

1 ZIP code · 3 water systems · Updated 2026-06-03

Based on current monitoring, Enterprise holds an above-average drinking water safety record for OR — violations are infrequent and typically minor when they do appear.

How Enterprise Compares

Enterprise81/100
Oregon avg78/100
National avg67/100

Data: EPA SDWIS Last verified: 2026-06-03

1
ZIP Codes
3
Water Systems
1
ZIPs with Violations
B · 81
Avg Safety Score
Zone 3
Radon Risk (Low)
$370K
Median Home Value
$1,200
Est. Remediation (0.3% of home value)

What You Should Know About Enterprise Water

  • Your city's water systems recorded 21 violations in the past 5 years.
  • Average lead level: 0.002 mg/L.
  • Homes built before 1986: 70% — older plumbing may contain lead solder.
  • Estimated remediation: $1,200 per household.
  • CDC health risk index: 14 — above typical levels.

Who Supplies Your Water in Enterprise

Residential water service in Enterprise, OR is divided among 3 separate utilities, drawn from 3 systems on file with federal regulators.

City of Enterprise,
Serves ~2,107 people · 21 violations
81
/100
City of Mosier,
Serves ~468 people · 21 violations
81
/100
Wallowa Lake Company Service District
Serves ~350 people · 21 violations
81
/100

Overview

We track water quality and home safety data for 1 ZIP code in Enterprise, Oregon, covering 3 community water systems serving approximately 3,369 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 Enterprise: B (81/100)

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

Enterprise water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0020 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
Consumer Confidence Report Rule Reporting 30 1
Lead Inorganic 4 1
Stage 1 DBP Rule Treatment Technique 4 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 2 1
Surface Water Treatment Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
97828 B 21 0 City of Enterprise,

All ZIP Codes in Enterprise

  • 97828 [B] — 21 violations

Data Sources

Updated daily.

Health Outcomes in Enterprise

11.7%
Asthma (US: 9.8%)
12.6%
Diabetes (US: 10.4%)
15.6%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 11.7% ↑
Diabetes 12.6% ↑
Mental Health 15.6% ↑

Vertical line = national average. Above national · Below national

Top Contaminants in Enterprise Water

Consumer Confidence Report Rule 30 violations
Reporting
Lead 4 violations
Inorganic · EPA limit: 0.015 mg/L
Stage 1 DBP Rule 4 violations
Treatment Technique
Disinfection byproduct exposure risk

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Housing & Infrastructure in Enterprise

1951
Median Build Year
70%
Built Before 1986
51%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 70% 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

While newer cities carry lower aggregate plumbing risk from lead-era construction, Enterprise sits firmly in the older category. The median build year of 1951 indicates that more than half the housing stock was built before 1986, when lead solder was still legally used in residential copper plumbing — and a substantial portion likely predates 1970, when lead pipes were still commonly installed for service lines. These two thresholds together define the elevated plumbing risk environment that older housing cities carry, independent of what the municipal water supply delivers to the meter.

1951
Median Year Built
70%
Pre-1986 (Lead Paint Risk)
51%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (51%) 1970–1986 (19%) Post-1986 (30%)

Over half of homes in Enterprise 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.

Cost Context: What Remediation Means for Enterprise Homeowners

Placing remediation in the context of Enterprise'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.

Median Home Value
$369,600
Est. Remediation
$1,200
Remediation as % of home value 0.3%

Remediation costs in Enterprise are relatively low compared to home values. The $800–$1,800 estimated range is a small fraction of median property value. Home values are 9% below the Oregon average.

Lead Exposure Risk for Children in Enterprise

70%
Homes Built Before 1986
0.002
mg/L Avg Lead (Limit: 0.015)

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.

Although utility-side compliance with federal Lead and Copper requirements remains the system reference, that compliance does not extend down into interior plumbing. With 70% of Enterprise stock built before the solder ban and aggregate readings at or beyond the action mark, a household-level sample becomes the practical way to close that information gap.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Flood & Climate Risk in Enterprise

Enterprise's flood exposure sits in the moderate range: 4 NFIP claims on record and 100% of ZIP codes within FEMA-designated flood zones. Residents with private wells or older infrastructure have reasonable grounds to factor flood timing into their water quality awareness.

4
Total FEMA Flood Claims
$963
Avg Claim Payout
100%
ZIPs in FEMA Flood Zones

Enterprise has a moderate flood history with 4 FEMA claims averaging $963 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.

Frequently Asked Questions

Is the water safe to drink in Enterprise, OR?
Enterprise has an average water safety score of 81/100 (Grade B). 21 EPA violations have been recorded. Check individual ZIP code reports for details specific to your neighborhood.
How many water violations does Enterprise have?
Enterprise water systems have a total of 21 EPA violations. Violations are tracked across 1 ZIP code.
Does Enterprise water have lead?
The average 90th-percentile lead level in Enterprise is 0.002 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home — testing is recommended especially in older properties.
How does Enterprise compare to Oregon average?
Enterprise has an average water safety score of 81/100, which is above the Oregon state average of 78/100.
How many water systems serve Enterprise?
Enterprise is served by 3 public water systems across 1 ZIP code, serving approximately 3,369 people.
How much does it cost to fix water issues in Enterprise?
Estimated remediation costs in Enterprise average $1,200 per household, ranging from $800 to $1,800. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
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