City of Hooper Bay
EPA ID: AK2270312 · 1,200 people served · 1 ZIP code
Based on the latest federal compliance data, City of Hooper Bay has 4 violations that the EPA has not yet closed — those outstanding findings are part of the enforcement record for a utility that delivers water to approximately 1,200 people throughout its service territory.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Worsening · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 1 (2021) to 1 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for City of Hooper Bay Source: EPA SDWIS service area boundaries.
Service area boundary — Grade B
Service Area Demographics
The City of Hooper Bay serves a community with a median household income of $47,000 and an estimated 1,008 residents across its service area. Approximately 51% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
City of Hooper Bay'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.
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 City of Hooper Bay compares to EPA limits
What This Means For You
Haloacetic Acids (HAA5) at 4 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Lead at 1 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 19 mg/L exceeds the EPA maximum of mg/L.
Revised Total Coliform Rule at 9 presence exceeds the EPA maximum of presence.
Surface Water Treatment Rule at 3 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
City of Hooper Bay (EPA ID: AK2270312) is a community water system in Alaska that serves approximately 1,200 people from groundwater sources.
This system serves ZIP code 99604 in Hooper Bay.
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 |
|---|---|---|---|
| August 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| August 1, 2025 | Revised Total Coliform Rule | Monitoring | Resolved |
| June 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| June 1, 2025 | Revised Total Coliform Rule | Monitoring | Resolved |
| January 1, 2025 | Stage 1 DBP Rule | Monitoring | Unresolved |
| December 1, 2024 | Revised Total Coliform Rule | Monitoring | Resolved |
| December 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Resolved |
| August 21, 2024 | Lead and Copper Rule | Monitoring | Resolved |
| March 8, 2024 | Contaminant 0700 | Health-based | Resolved |
| February 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| January 1, 2024 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
| December 9, 2023 | Contaminant 0700 | Monitoring | Resolved |
| December 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| November 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| October 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| October 1, 2023 | Revised Total Coliform Rule | Monitoring | Resolved |
| March 1, 2023 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| January 1, 2023 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
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 | 19 | No |
| Revised Total Coliform Rule | Microbiological | 9 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 4 | No |
| Surface Water Treatment Rule | Treatment Failure | 3 | No |
| Contaminant 0700 | Other Violation | 3 | Yes |
| Stage 2 DBP Rule | Treatment Failure | 2 | Yes |
| Lead | Inorganic | 1 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
| Lead and Copper 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 |
|---|---|---|---|
| 99604 | 0.0014 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
- 99604 — Hooper Bay
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Hooper Bay (AK2270312) on EPA.gov.
Frequently Asked Questions
Is City of Hooper Bay water safe to drink?
City of Hooper Bay has recorded 3 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 City of Hooper Bay serve?
City of Hooper Bay serves approximately 1,200 people across 1 ZIP code in Alaska.
Where does City of Hooper Bay get its water?
The primary water source is groundwater.
Water Source & Treatment
Where this water originates and how it's treated before reaching your tap.
Source: CITY OF HOOPER BAY 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
City of Hooper Bay (EPA ID: AK2270312) — request the latest Consumer Confidence Report or ask about specific contaminants.