Nsbu - Kaktovik (barter Is)
EPA ID: AK2320248 · 292 people served · 1 ZIP code
From the earliest to the most recent cycle in the five-year EPA window, Nsbu - Kaktovik (barter Is) has logged zero violations — no MCL exceedances, no health advisories, and no enforcement activity across the entire period for the 292 people in its service area, a record that stands up well against both state and national benchmarks.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Nsbu - Kaktovik (barter Is) Source: EPA SDWIS service area boundaries.
Service area boundary — Grade A
Service Area Demographics
The Nsbu - Kaktovik (barter Is) serves a community with a median household income of $88,750 and an estimated 153 residents across its service area. Approximately 57% 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?
Nsbu - Kaktovik (barter Is)'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 15% of homes in North Slope 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
Comparable Water Systems
Similar-sized systems in Alaska
System Overview
Nsbu - Kaktovik (barter Is) (EPA ID: AK2320248) is a community water system in Alaska that serves approximately 292 people from surface water sources.
This system serves ZIP code 99747 in Kaktovik.
Average Home Safety Score: A (99/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 99747 | 0.0018 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
- 99747 — Kaktovik
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Nsbu - Kaktovik (barter Is) (AK2320248) on EPA.gov.
Frequently Asked Questions
Is Nsbu - Kaktovik (barter Is) water safe to drink?
Based on EPA records, Nsbu - Kaktovik (barter Is) has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Nsbu - Kaktovik (barter Is) serve?
Nsbu - Kaktovik (barter Is) serves approximately 292 people across 1 ZIP code in Alaska.
Where does Nsbu - Kaktovik (barter Is) 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: NSBU - KAKTOVIK (BARTER IS) 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.