Monitoring Violations OR

City of Enterprise

Name: Water Quality Data for City of Enterprise
Creator: ZipCheckup
License: https://creativecommons.org/licenses/by/4.0/

EPA ID: OR4100278 · 2,107 people served · 1 ZIP code

City of Enterprise shows 3 open EPA violations in current federal records for approximately 2,107 people.

Data: EPA SDWIS Last verified: 2026-04-02

B · 81

Avg Safety Score

2,107

People Served

ZIP Code Served

Violations (5yr)

Groundwater

Water Source

0.002 mg/L

Max Lead Level

Zone 3

Radon Risk · Low

Contaminants Flagged

$370K

Median Home Value in Service Area

Service Area Map

Coverage area for City of Enterprise Source: EPA SDWIS service area boundaries.

Service area boundary — Grade B

Service Area Demographics

$57,275

Median Household Income

3,369

Service Area Population

67%

Disadvantaged Population

70th

Poverty Percentile

70th

Energy Burden Percentile

70%

Pre-1986 Housing

The City of Enterprise serves a community with a median household income of $57,275 and an estimated 3,369 residents across its service area. Approximately 70% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.

Environmental Justice Note: 67% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.

💧 Where Does Your Water Come From?

Groundwater

City of Enterprise's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.

Moderate Risk

Source Contamination Risk

20th

Wastewater Discharge Proximity

0th

Superfund Site Proximity

About 0% of homes in Wallowa County, Oregon rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.

Infrastructure Risk

75 yr

Avg Pipe Age

Galvanized Steel or Copper

Pipe Material

0 yr

Est. Remaining Life

Stable

Decay Status

Installed 100% of expected lifespan used End of life

Detected Contaminants

How City of Enterprise compares to EPA limits

Lead 2 mg/L (action level) (EXCEEDS LIMIT)

0 EPA Limit: 0.015 mg/L (action level)

Brain damage in children, kidney & blood pressure in adults

Total Trihalomethanes (TTHM) 1 mg/L (EXCEEDS LIMIT)

0 EPA Limit: 0.08 mg/L

Bladder & rectal cancer risk; reproductive concerns

What This Means For You

Lead at 2 mg/L (action level) exceeds the EPA maximum of 0.015 mg/L (action level). Brain damage in children, kidney & blood pressure in adults. Consider reverse osmosis filtration.

Consumer Confidence Report Rule at 15 mg/L exceeds the EPA maximum of mg/L.

Total Trihalomethanes (TTHM) at 1 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.

Stage 1 DBP Rule at 2 mg/L exceeds the EPA maximum of mg/L.

Surface Water Treatment Rule at 1 mg/L exceeds the EPA maximum of mg/L.

Lead was detected in this water system. reverse osmosis filtration can reduce exposure.

Find a certified water filter →

Comparable Water Systems

Similar-sized systems in Oregon

City of Vernonia

2,100 people

C 22 violations

City of Stanfield

2,115 people

B 11 violations

City of Irrigon

2,133 people

B 18 violations

Banks Water Department

2,070 people

C 4 violations

City of Cave Junction

2,160 people

B 85 violations

Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

Flood Insurance

Flood Insurance $1,200

Total Estimated Cost $1,200

Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.

Cost of Inaction

If water quality issues in this service area are not addressed, the estimated financial impact per household is:

Estimated Healthcare Costs $1,500

Annual per household (CDC est.)

Estimated Cumulative Cost Per Household

5 years

$7,500

10 years

$15,000

20 years

$30,000

Compare: Estimated remediation cost is $1,200 (one-time) vs. $15,000 in estimated inaction costs over 10 years.

Estimates based on published EPA, CDC, and peer-reviewed research. Individual costs vary by household size, property, and health factors. These are conservative lower-bound estimates intended for awareness, not financial advice.

System Overview

City of Enterprise, (EPA ID: OR4100278) is a community water system in Oregon that serves approximately 2,107 people from groundwater sources.

This system serves ZIP code 97828 in Enterprise.

Average Home Safety Score: B (81/100)

Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.

Violation History

21 monitoring/reporting violations recorded. These are procedural violations (missed tests or late reports), not necessarily water safety issues.

Recent Violations

Date	Contaminant	Type	Status
September 1, 2025	Consumer Confidence Report Rule	Monitoring	Unresolved
March 1, 2025	Consumer Confidence Report Rule	Monitoring	Resolved
February 1, 2025	Consumer Confidence Report Rule	Monitoring	Resolved
January 1, 2025	Consumer Confidence Report Rule	Monitoring	Resolved
December 1, 2024	Consumer Confidence Report Rule	Monitoring	Resolved
November 1, 2024	Consumer Confidence Report Rule	Monitoring	Resolved
October 1, 2024	Stage 1 DBP Rule	Monitoring	Unresolved
October 1, 2024	Consumer Confidence Report Rule	Monitoring	Resolved
September 1, 2024	Consumer Confidence Report Rule	Monitoring	Resolved
August 1, 2024	Consumer Confidence Report Rule	Monitoring	Resolved
July 1, 2024	Surface Water Treatment Rule	Monitoring	Resolved
July 1, 2024	Consumer Confidence Report Rule	Monitoring	Resolved
April 1, 2024	Consumer Confidence Report Rule	Monitoring	Resolved
December 1, 2023	Consumer Confidence Report Rule	Monitoring	Resolved
October 1, 2023	Stage 1 DBP Rule	Monitoring	Resolved
August 1, 2023	Consumer Confidence Report Rule	Monitoring	Resolved
January 1, 2023	Lead	Monitoring	Resolved

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Contaminant	Category	Violations	Health-Based
Consumer Confidence Report Rule	Reporting Failure	15	No
Lead	Inorganic	2	No
Stage 1 DBP Rule	Treatment Failure	2	No
Total Trihalomethanes (TTHM)	Disinfection Byproducts	1	No
Surface Water Treatment Rule	Treatment Failure	1	No

Lead & Copper

EPA Lead and Copper Rule sampling data for ZIP codes served by this system:

ZIP Code	Lead Level	Exceeds Limit	Sample Date
97828	0.002 mg/L	No	N/A

Radon Risk in Service Area

Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)

Need help with your water quality?

Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400

Find the Right Water Filter

Free tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.

ZIP Codes Served

97828 — Enterprise

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Enterprise (OR4100278) on EPA.gov.

Frequently Asked Questions

Is City of Enterprise water safe to drink?

City of Enterprise has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.

How many people does City of Enterprise serve?

City of Enterprise serves approximately 2,107 people across 1 ZIP code in Oregon.

Where does City of Enterprise get its water?

The primary water source is groundwater.

Lead Service Line Inventory

Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:

Confirmed Lead

Galvanized — Replacement Required

Unknown Material

1,150

Confirmed Non-Lead

This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.

Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.

Federal Regulatory Status · 2026Q1

LCRR inventory submission: Reported all required service line types

Latest tap sample on 2021-01-01 did not exceed the federal lead action level.

Population served: 2,107

Reported to Oregon

Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026

ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.

Learn about lead in drinking water →

Frequently Asked Questions

Is water from City of Enterprise safe to drink? ▼

City of Enterprise earns a B safety grade with 21 violations in the past 5 years. Tap water meets EPA standards for most contaminants.

What contaminants are in City of Enterprise's water? ▼

Detected contaminants include Lead, Consumer Confidence Report Rule, Total Trihalomethanes (TTHM), Stage 1 DBP Rule. Each is compared against EPA maximum contaminant levels (MCLs) in the detailed breakdown above.

Should I use a water filter? ▼

Given 5 contaminants above EPA limits, a certified water filter can provide an extra layer of protection. The best type depends on specific contaminants in your water.

How many people does City of Enterprise serve? ▼

City of Enterprise serves approximately 2,107 people with drinking water across 1 ZIP code.

What is City of Enterprise's water source? ▼

City of Enterprise draws water from groundwater sources. Source type affects which contaminants are most likely to be present.

Is there lead in City of Enterprise's water? ▼

The maximum detected lead level is 0.002 mg/L. This is within EPA action level guidelines.

What is the demographic profile of City of Enterprise's service area? ▼

The City of Enterprise service area has a median household income of $57,275. EPA EJScreen data classifies 67% of the population as disadvantaged, which may indicate greater vulnerability to environmental health risks.

Where does City of Enterprise get its water? ▼

What You Can Do

Test your water

Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →

Check your specific ZIP code

Water quality can vary within a system. View nearest ZIP report →

Contact your utility

City of Enterprise (EPA ID: OR4100278) — request the latest Consumer Confidence Report or ask about specific contaminants.

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