Noorvik Water System
EPA ID: AK2340109 · 735 people served · 1 ZIP code
Federal data shows 6 unresolved violations at Noorvik Water System — roughly 735 residents in the service area.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Stable · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 2 (2021) to 2 (2024). Violation counts have remained relatively steady.
Service Area Map
Coverage area for Noorvik Water System Source: EPA SDWIS service area boundaries.
Service area boundary — Grade A
Service Area Demographics
The Noorvik Water System serves a community with a median household income of $63,125 and an estimated 722 residents across its service area. Approximately 55% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 100% 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?
Noorvik Water System's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
About 24% of homes in Northwest Arctic Borough, Alaska rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
Detected Contaminants
How Noorvik Water System compares to EPA limits
What This Means For You
Haloacetic Acids (HAA5) at 10 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
E. coli at 6 Zero tolerance (any positive sample triggers immediate action) exceeds the EPA maximum of Zero tolerance (any positive sample triggers immediate action). Severe GI illness; potentially fatal kidney failure in children. Consider UV disinfection (99.99%) filtration.
Fecal Coliform at 4 presence exceeds the EPA maximum of presence.
Stage 2 DBP Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Total Organic Carbon at 1 mg/L exceeds the EPA maximum of mg/L.
Haloacetic Acids (HAA5) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
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Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
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.
System Overview
Noorvik Water System (EPA ID: AK2340109) is a community water system in Alaska that serves approximately 735 people from surface water sources.
This system serves ZIP code 99763 in Noorvik.
Average Home Safety Score: A (94/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 1, 2025 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Resolved |
| October 1, 2024 | Fecal Coliform | Monitoring | Resolved |
| October 1, 2024 | Haloacetic Acids (HAA5) | Monitoring | Resolved |
| April 1, 2024 | Haloacetic Acids (HAA5) | Monitoring | Resolved |
| April 1, 2024 | Haloacetic Acids (HAA5) | Health-based | Resolved |
| January 1, 2024 | Fecal Coliform | Monitoring | Unresolved |
| January 1, 2024 | E. coli | Monitoring | Unresolved |
| January 1, 2024 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
| October 1, 2023 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
| April 8, 2023 | Lead and Copper Rule | Monitoring | Resolved |
| February 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| February 1, 2023 | E. coli | Monitoring | Resolved |
| January 1, 2023 | Stage 1 DBP Rule | Monitoring | Unresolved |
| January 1, 2023 | Revised Total Coliform Rule | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 10 | Yes |
| E. coli | Microbiological | 6 | Yes |
| Fecal Coliform | Microbiological | 4 | No |
| Stage 2 DBP Rule | Treatment Failure | 2 | Yes |
| Total Organic Carbon | Disinfection Byproducts | 1 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
| Lead and Copper Rule | Treatment Failure | 1 | No |
| Consumer Confidence Report Rule | Reporting Failure | 1 | No |
| Revised Total Coliform Rule | Microbiological | 1 | No |
Health Risk Details
Haloacetic Acids (HAA5) (EPA limit: 0.06 mg/L)
Cancer risk; reproductive & developmental effects At-risk groups: pregnant women, infants, long-term consumers of chlorinated municipal water.
Removal methods: granular activated carbon (GAC), carbon block filter, reverse osmosis. Find the right filter →
E. coli (EPA limit: Zero tolerance (any positive sample triggers immediate action))
Severe GI illness; potentially fatal kidney failure in children At-risk groups: children under 5, elderly, immunocompromised individuals, pregnant women.
Removal methods: UV disinfection (99.99%), chlorination, reverse osmosis. Find the right filter →
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 99763 | 0.00206 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 FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
- 99763 — Noorvik
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Noorvik Water System (AK2340109) on EPA.gov.
Frequently Asked Questions
Is Noorvik Water System water safe to drink?
Noorvik Water System has recorded 4 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
How many people does Noorvik Water System serve?
Noorvik Water System serves approximately 735 people across 1 ZIP code in Alaska.
Where does Noorvik Water System get its water?
The primary water source is surface water.
Water Source & Treatment
Where this water originates and how it's treated before reaching your tap.
Source: NOORVIK WATER SYSTEM Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility. Treatment and source data are sourced from the utility's published CCR filings.
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
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.
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.
Frequently Asked Questions
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
Noorvik Water System (EPA ID: AK2340109) — request the latest Consumer Confidence Report or ask about specific contaminants.