Nunam Iqua Water System
EPA ID: AK2270207 · 213 people served · 1 ZIP code
Nunam Iqua Water System's current EPA file includes 28 unresolved violations — every outstanding finding is documented in federal records for this utility, which supplies water to approximately 213 residents across its service territory.
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 1 (2024). Violation counts have remained relatively steady.
Service Area Map
Coverage area for Nunam Iqua Water System Source: EPA SDWIS service area boundaries.
Service area boundary — Grade C
🌊 Where Does Your Water Come From?
Nunam Iqua 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 29% of homes in Kusilvak Census Area, 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 Nunam Iqua 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.
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.
Total Trihalomethanes (TTHM) at 7 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Consumer Confidence Report Rule at 39 mg/L exceeds the EPA maximum of mg/L.
E. coli at 36 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.
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
Nunam Iqua Water System (EPA ID: AK2270207) is a community water system in Alaska that serves approximately 213 people from surface water sources.
This system serves ZIP code 99666 in Nunam Iqua.
Average Home Safety Score: C (55/100)
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 |
|---|---|---|---|
| September 1, 2025 | Chlorite | Monitoring | Unresolved |
| July 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| July 1, 2025 | E. coli | Monitoring | Resolved |
| July 1, 2025 | Revised Total Coliform Rule | Monitoring | Resolved |
| April 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| April 1, 2025 | E. coli | Monitoring | Resolved |
| April 1, 2025 | Chlorite | Monitoring | Resolved |
| March 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| March 1, 2025 | Revised Total Coliform Rule | Monitoring | Resolved |
| March 1, 2025 | E. coli | Monitoring | Resolved |
| February 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| February 1, 2025 | Revised Total Coliform Rule | Monitoring | Resolved |
| February 1, 2025 | E. coli | Monitoring | Resolved |
| January 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| January 1, 2025 | E. coli | Monitoring | Resolved |
| January 1, 2025 | Total Trihalomethanes (TTHM) | Monitoring | Unresolved |
| December 1, 2024 | Revised Total Coliform Rule | Monitoring | Resolved |
| December 1, 2024 | E. coli | Monitoring | Resolved |
| December 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| November 1, 2024 | Consumer Confidence Report Rule | 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 | 39 | No |
| E. coli | Microbiological | 36 | No |
| Total Coliform | Microbiological | 26 | No |
| Chlorite | Disinfection Byproducts | 23 | Yes |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 10 | Yes |
| Revised Total Coliform Rule | Microbiological | 10 | No |
| Fecal Coliform | Microbiological | 9 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 7 | No |
| Surface Water Treatment Rule | Treatment Failure | 3 | No |
| Lead | Inorganic | 2 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
| Lead and Copper Rule | Treatment Failure | 1 | No |
Health Risk Details
Chlorite (EPA limit: 1 mg/L)
Anemia and nervous system effects in infants and children At-risk groups: infants, developing fetuses, people with G6PD deficiency.
Removal methods: ferrous sulfate reduction, activated carbon, reverse osmosis. Find the right filter →
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 →
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 99666 | 0.0019 mg/L | No | N/A |
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
- 99666 — Nunam Iqua
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Nunam Iqua Water System (AK2270207) on EPA.gov.
Frequently Asked Questions
Is Nunam Iqua Water System water safe to drink?
Nunam Iqua Water System has recorded 16 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 Nunam Iqua Water System serve?
Nunam Iqua Water System serves approximately 213 people across 1 ZIP code in Alaska.
Where does Nunam Iqua Water System get its water?
The primary water source is surface water.
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
Nunam Iqua Water System (EPA ID: AK2270207) — request the latest Consumer Confidence Report or ask about specific contaminants.