Noatak Community Water System
EPA ID: AK2340159 · 485 people served · 1 ZIP code
Tallying the federal enforcement file for Noatak Community Water System yields 4 open violations that have not been formally closed — each finding sits in the EPA database while the utility continues to deliver water to approximately 485 residents and works through the required corrective action process.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Noatak Community Water System Source: EPA SDWIS service area boundaries.
Service area boundary — Grade B
Service Area Demographics
The Noatak Community Water System serves a community with a median household income of $77,500 and an estimated 700 residents across its service area.
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?
Noatak Community 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 Noatak Community Water System compares to EPA limits
What This Means For You
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.
Fecal Coliform at 6 presence exceeds the EPA maximum of presence.
Surface Water Treatment Rule at 4 mg/L exceeds the EPA maximum of mg/L.
E. coli at 4 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.
Total Organic Carbon at 1 mg/L exceeds the EPA maximum of mg/L.
Total Trihalomethanes (TTHM) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
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System Overview
Noatak Community Water System (EPA ID: AK2340159) is a community water system in Alaska that serves approximately 485 people from surface water sources.
This system serves ZIP code 99761 in Noatak.
Average Home Safety Score: B (84/100)
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 |
|---|---|---|---|
| October 1, 2024 | Surface Water Treatment Rule | Monitoring | Resolved |
| September 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| September 1, 2024 | Revised Total Coliform Rule | Monitoring | Unresolved |
| July 1, 2024 | Surface Water Treatment Rule | Monitoring | Resolved |
| June 1, 2024 | Fecal Coliform | Monitoring | Resolved |
| June 1, 2024 | E. coli | Monitoring | Resolved |
| April 1, 2024 | Fecal Coliform | Monitoring | Resolved |
| April 1, 2024 | E. coli | Monitoring | Resolved |
| January 1, 2024 | Fecal Coliform | Monitoring | Unresolved |
| January 1, 2024 | E. coli | Monitoring | Unresolved |
| January 1, 2024 | Total Trihalomethanes (TTHM) | Monitoring | Resolved |
| October 1, 2023 | Surface Water Treatment Rule | Monitoring | Resolved |
| July 1, 2023 | Surface Water Treatment Rule | Monitoring | Resolved |
| June 1, 2023 | Fecal Coliform | Monitoring | Resolved |
| June 1, 2023 | E. coli | Monitoring | Resolved |
| May 1, 2023 | Fecal Coliform | Monitoring | Resolved |
| January 1, 2023 | Stage 1 DBP Rule | Monitoring | Unresolved |
| January 1, 2023 | Total Organic Carbon | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Fecal Coliform | Microbiological | 6 | No |
| Surface Water Treatment Rule | Treatment Failure | 4 | No |
| E. coli | Microbiological | 4 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 1 | No |
| Total Organic Carbon | Disinfection Byproducts | 1 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
| Consumer Confidence Report Rule | Reporting Failure | 1 | No |
| Revised Total Coliform Rule | Microbiological | 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 |
|---|---|---|---|
| 99761 | 0.00025 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
- 99761 — Noatak
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Noatak Community Water System (AK2340159) on EPA.gov.
Frequently Asked Questions
Is Noatak Community Water System water safe to drink?
Noatak Community Water System has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.
How many people does Noatak Community Water System serve?
Noatak Community Water System serves approximately 485 people across 1 ZIP code in Alaska.
Where does Noatak Community 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: NOATAK COMMUNITY 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
Noatak Community Water System (EPA ID: AK2340159) — request the latest Consumer Confidence Report or ask about specific contaminants.