Saint George Island, AK (99591) Water Safety: 50/100
EPA data for Unalaska Water System
99591 in Saint George Island, AK posts a violation-free federal record — the system has cleared every MCL threshold, met all monitoring schedules, and drawn no enforcement actions across the full compliance history tracked by EPA.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS Last verified: March 22, 2026
Key Findings
4 other areas checked — no concerns found.
At a Glance
- Water No EPA violations on record for the past 5 years.
Composite Home Safety Score has been stable over the tracking period.
What’s Happening in Saint George Island, Alaska
No significant water quality or safety concerns have been reported for this area. The safety score is stable.
Have your pipes inspected for lead solder
75% of homes in this ZIP were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially in the morning or after standing overnight.
Recommended Buyer Guides for This ZIP
Independent guides — grounded in EPA, NSF, FEMA, and CDC standards. Matched to risks detected in your area.
- Best Water Filters for Lead — Lead detection or pre-1986 plumbing
- Best Lead Paint Test Kits — Pre-1978 home risk
This Summer — what to check
Season-specific maintenance for home safety. Universal tasks — apply everywhere unless noted.
-
Water Heater
Flush sediment (1–2×/year). Cuts energy use and prevents bacterial growth in low-use hot-water pockets.
Source: DOE -
Wildfire & Smoke
Clear leaves and debris from gutters and the 30-ft home-ignition zone. Replace HVAC filters with MERV 13+.
Source: Firewise -
HVAC Filter
Peak AC run. Replace filters monthly during high pollen / wildfire-smoke days; standard interval otherwise.
Source: EPA IAQ
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How Saint George Island Compares
Safety Score vs. Aleutians West Census Area County and Alaska averages
| Metric | Saint George Island | Aleutians West Census Area County | Alaska |
|---|---|---|---|
| Safety Score | 50 | 50 | 75 |
| EPA Violations (total) | 0 | — | 51.1 |
County and state averages computed from 41,344 ZIP codes. Data: EPA SDWIS.
See incorrect data? Let us know
🔍Key Insights for Saint George Island 99591
Derived from EPA, Census, FEMA, and EIA data — exclusive to ZipCheckup
Score Breakdown
How your Home Safety Score of 77 is calculated.
Score has been stable — no change in the last 90 days.
Safety & Health (7) HIGH
Compliance Alerts for 99591
2 issues flagged based on EPA data, state regulations, and housing age estimates.
Estimates based on EPA data, U.S. Census ACS housing vintage, and state regulations. Individual homes may vary.
Compliance Risk Forecast
Probability of future drinking water violations based on historical patterns, enforcement trends, and system size.
95% probability of new violation within 2 years
Based on 8.91 events/year rate. Model uses Poisson distribution with trend and system-size adjustments.
Service Disruption Risk
Elevated30% estimated probability of a boil water advisory or service interruption in the next 90 days.
Based on infrastructure age, EPA violation history, flood exposure, and seasonal patterns.
Estimates based on EPA enforcement data, U.S. Census ACS housing vintage, and FEMA flood claims. Not a guarantee of disruption.
Your Water System
ZIP code 99591 in Saint George Island, Alaska is served by Unalaska Water System (EPA ID: AK2260309). This system provides water to approximately 9,400 people from surface water sources.
Home Safety Score: D (50/100)
Based on water quality violations, lead levels, and radon risk in your area. This score is better than 11% of ZIP codes nationally and 1% in Alaska.
| Factor | Status | Details |
|---|---|---|
| Water Quality | good | 0 violations, 0 health-based |
| Lead in Water | unknown | No sampling data available |
| Radon Risk | unknown | No radon zone data available |
| Gas Safety | low | 0 incidents, score 0/100 |
| Wildfire Smoke | very low | score 0/100, 1 county fires (5yr) |
| Earthquake Risk | Very Low | score 3.1/50 |
Lead & Copper in Your Water
No Lead & Copper Rule sampling data available for systems serving this ZIP code.
CO & Gas Safety
Gas Distribution Risk: Low (score: 0/100)
No gas distribution incidents recorded in this county since 2004.
The CPSC recommends CO detectors on every level of your home. Have gas appliances inspected annually by a licensed technician.
Wildfire & Smoke Risk
Smoke Risk: Very Low (score: 0/100)
1 wildfire recorded in this county over the past 5 years.
Monitor air quality at AirNow.gov during fire season (June–November). A HEPA air purifier can reduce indoor PM2.5 by up to 80% during smoke events.
Earthquake & Seismic Risk
Risk Rating: Very Low (score: 3.1/50)
| Metric | Value |
|---|---|
| Risk Score | 3.1 |
| Risk Rating | Very Low |
| Annual Frequency | 0.0098 damaging events/yr |
| Expected Annual Loss | $1.1M (Relatively Low) |
Monitor seismic activity at the USGS Earthquake Map. Secure heavy furniture, maintain an emergency kit, and know your gas shutoff location.
Violation Summary
Energy Costs in AK
Residential electricity rate: 25.52¢/kWh — 50% above the national average (17.0¢/kWh).
High electricity rates in Alaska make energy-efficient appliances and heat pumps particularly valuable for reducing utility bills.
Energy Sources
Alaska generates 30.9% of its electricity from renewable sources — 4% above the national average of 26.9%. Including nuclear, 30.9% of the state's power is carbon-free (EIA 2025).
| Source | Share |
|---|---|
| Natural gas | 40.4% |
| Hydroelectric | 28.7% |
| Petroleum | 15.9% |
| Coal | 12.3% |
| Wind | 2% |
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.
What You Can Do
- Review your annual Consumer Confidence Report (CCR) — Your utility publishes this each July
- Test your home's water — Especially if you have older plumbing (pre-1986) that may contain lead
- Stay informed — Bookmark this page to check for updates on your water quality
Need help with water testing or filtration?
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.
Other Water Quality Reports in Alaska
- 99501 (Anchorage) — 292 violations
- 99502 (Anchorage) — 292 violations
- 99503 (Anchorage) — 292 violations
- 99504 (Anchorage) — 292 violations
- 99505 (Jber)
- 99506 (Jber)
- 99507 (Anchorage) — 292 violations
- 99508 (Anchorage) — 292 violations
- 99509 (Anchorage) — 292 violations
- 99510 (Anchorage) — 292 violations
- 99511 (Anchorage) — 292 violations
- 99513 (Anchorage) — 292 violations
- 99514 (Anchorage) — 292 violations
- 99515 (Anchorage) — 292 violations
- 99516 (Anchorage) — 292 violations
- 99517 (Anchorage) — 292 violations
- 99518 (Anchorage) — 292 violations
- 99519 (Anchorage) — 292 violations
- 99520 (Anchorage) — 292 violations
- 99521 (Anchorage) — 292 violations
Nearby Water Quality Reports
- 99660 (Saint Paul Island) — 48 mi
- 99692 (Dutch Harbor) — 223 mi
- 99685 (Unalaska) — 223 mi — 11 violations
- 99553 (Akutan) — 227 mi — 149 violations
- 99638 (Nikolski) — 254 mi
- 99583 (False Pass) — 270 mi — 7 violations
- 99571 (Cold Bay) — 284 mi — 3 violations
- 99630 (Mekoryuk) — 287 mi — 12 violations
- 99612 (King Cove) — 303 mi — 6 violations
- 99614 (Kipnuk) — 305 mi — 42 violations
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Unalaska Water System (AK2260309) on EPA.gov.
Frequently Asked Questions
Is the tap water in 99591 safe to drink?
Based on EPA records, the water system serving ZIP code 99591 has no recorded violations in the past 5 years. However, individual home conditions (old pipes, well water) can affect quality.
Where does 99591's water come from?
The primary water source for this area is surface water. Unalaska Water System serves approximately 9,400 people.
How can I get my water tested?
Contact your local water utility for a free water quality report, or hire a certified lab for independent home water testing. The EPA recommends testing annually if you use a private well.
Does 99591 have lead in the water?
No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 99591. If you are concerned about lead, contact your water utility or have your tap water independently tested.
What is the radon risk in 99591?
Radon zone data is not available for ZIP code 99591. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.
Contaminant Stress Analysis
Statistical envelope (p10/p50/p90) of measured contaminant levels compared to EPA Maximum Contaminant Levels (MCL). Based on enforcement and compliance monitoring data.
All measured values of Lead (LCR 90th) remain below the MCL of 15 PPB.
Score History
Tracking since 2026-03-23 · 50 data points
Safety Score Timeline
Environmental Incidents
Enforcement Actions
Understanding EPA Enforcement
- MCL Violation — Contaminant exceeded the Maximum Contaminant Level set by EPA
- Treatment Technique (TT) — Water system failed to follow required treatment methods
- Formal Enforcement — EPA or state issued a legal order (administrative order, court action, or compliance order)
- Resolved — The water system returned to compliance
Source: EPA Enforcement and Compliance History Online (ECHO). Data from the Safe Drinking Water Information System (SDWIS). Updated quarterly.
Consumer Confidence Report
2024 ReportAnnual water quality report published by Unalaska Water System for ZIP code 99591.
What Is a Consumer Confidence Report?
Every community water system in the U.S. is required by the EPA to publish an annual Consumer Confidence Report (CCR), also known as a Water Quality Report. It lists all detected contaminants, their levels compared to federal limits (MCLs), and information about where your water comes from.
How to Read Your CCR
- MCL (Maximum Contaminant Level) — the highest level of a contaminant allowed in drinking water
- MCLG (Maximum Contaminant Level Goal) — the level below which there is no known health risk
- Action Level — used for lead and copper; triggers treatment if exceeded at the 90th percentile
- A violation means detected levels exceeded the MCL — your utility must notify you and take corrective action
Childhood Environmental Risk Score — 99591
Elevated RiskThis ZIP's score is higher than 59% of U.S. ZIP codes and 86% of those in Alaska — a relative ranking, not a verdict on any home.
Risk Factor Breakdown
Water system violation history is the largest contributor to this ZIP's score. A pattern of violations can signal recurring quality issues worth monitoring, and reviewing a system's recent record helps families know what to ask about.
- Children under 6 are most vulnerable to lead exposure — there is no safe level of lead in blood
- Test your home's drinking water, especially if your home was built before 1986
What families can do
Here are calm, practical steps families in this ZIP can consider — informational guidance, not cause for alarm.
No specific actions are flagged for this ZIP. The general guidance above still applies to every family.
Know a family in 99591? A free 30-second ZIP check shows them the same lead, water, and housing data.
Lead Pipe Replacement Funding for Alaska
Key LCRI Deadlines
What This Means for You
- If your home was built before 1986, it may have lead service lines
- Your water utility is required to inventory and replace lead lines at no cost to you
- Contact your water utility to check if your address is in their inventory
Source: EPA DWSRF Lead Service Line Replacement Program, FY2025 Allotment Memorandum.
Active Alerts in Alaska
0 active weather alerts in Alaska. Severe weather can affect your water quality and home safety.
Environmental Hazards (8) MODERATE
Termite Risk for 99591
No Significant RiskNot required; no significant termite risk
No termite inspection required; Alaska is outside all TIP zones
Termite Damage in the U.S.
- Termites cause an estimated $5 billion in property damage annually in the United States, according to the USDA.
- Standard termite treatment costs $225–$2,500; fumigation for severe infestations: $2,000–$8,000.
- Homeowner insurance typically does not cover termite damage, as it is considered preventable.
What Homeowners Should Know
- Annual termite inspections are recommended in moderate-to-heavy risk zones. Early detection can prevent thousands in repair costs.
- VA and FHA loans require a clear NPMA-33 (Wood Destroying Insect Inspection Report) for closing in most states.
- Warning signs: mud tubes on foundation walls, hollow-sounding wood, discarded wings near windows, and frass (droppings) near baseboards.
- Preventive treatment ($200–$900 per year) is far less expensive than structural damage repair, which averages $3,000 and can exceed $50,000.
- Even in lower-risk zones, subterranean termites can be active. Consider an inspection if purchasing an older home or if you notice warning signs.
Source: USDA Forest Service Termite Infestation Probability (TIP) zones, VA/FHA lender requirements, Alaska pest control regulations. Inspection cost estimates reflect typical market rates and may vary by provider, property size, and location. This information is for general guidance only.
Pest Risk for 99591
Low Pest Pressurerodents, carpenter ants and bed bugs
Required for VA loans in all states; not state-mandated
Up to $5,000 per violation
Why This Matters
- Health risks: Mosquitoes transmit West Nile virus (1,000+ U.S. cases annually). Ticks spread Lyme disease (estimated 476,000 cases/year per CDC). Rodent droppings can carry hantavirus.
- Property damage: Carpenter ants and termites cause billions in structural damage annually. Rodents gnaw wiring, creating fire hazards.
- Food safety: Cockroaches and rodents contaminate food preparation areas and can trigger allergies and asthma, especially in children.
- Even in lower-pressure regions like Alaska, indoor pests (bed bugs, rodents) remain a concern. Inspect when purchasing a home or if you notice signs of activity.
Common Questions
Source: CDC vector-borne disease surveillance, EPA pesticide regulation data, Alaska pest control board, NPMA pest prevalence maps. Inspection cost estimates reflect typical market rates and may vary by provider, property size, and location. This information is for general guidance only.
Wildfire & Smoke Risk Profile
Wildfire Smoke Safety Tips
- Air purifier with HEPA filter: run in the room where you spend the most time. Close windows and doors during smoke events.
- N95 or KN95 masks: standard cloth and surgical masks do not filter fine particulate matter (PM2.5) from wildfire smoke.
- Seal gaps: use wet towels or tape around doors and windows to reduce smoke infiltration during poor air quality days.
- Monitor AQI: check AirNow.gov daily during fire season. AQI above 100 = unhealthy for sensitive groups; above 150 = unhealthy for everyone.
- Create a clean room: designate one room with the air purifier running, keep it sealed, and limit time outdoors when AQI is elevated.
Protect Your Indoor Air from Wildfire Smoke
A HEPA air purifier can reduce indoor PM2.5 by up to 80% during smoke events. Portable units for a single room start at $80. Whole-home solutions start at $300.
Product links may earn a commission — see our disclosure.
Earthquake & Seismic Risk Profile
Earthquake Preparedness Tips
- Secure heavy furniture: anchor bookshelves, water heaters, and large appliances to wall studs. Unsecured items cause most earthquake injuries.
- Emergency kit: water (1 gallon per person per day for 3 days), non-perishable food, flashlight, batteries, first aid kit, wrench to turn off gas. Keep kits at home and in your car.
- Know how to shut off gas: locate the gas meter shutoff valve and keep a wrench nearby. Gas leaks are a leading cause of post-earthquake fires.
- Drop, Cover, Hold On: during shaking, drop to hands and knees, take cover under a sturdy table, and hold on. Do not stand in doorways or run outside.
- Structural retrofit: homes built before 1980 may need foundation bolting or cripple wall bracing. FEMA's earthquake resources offer guidance on retrofitting.
- USGS ShakeMap: monitor real-time and recent seismic activity at earthquake.usgs.gov.
Build Your Earthquake Preparedness Kit
FEMA recommends every household in a seismic zone maintain a 72-hour emergency kit. Pre-assembled kits start at $40 and include water, food, first aid, and tools.
Product links may earn a commission — see our disclosure.
Mold Risk Assessment for 99591
Moderate RiskSummer months (June–August) present the highest mold risk in 99591, with average humidity reaching 69%. Indoor humidity can be 10–15% higher in poorly ventilated spaces. Winter humidity drops to 75%, reducing but not eliminating risk.
Why Mold Matters
- The CDC and EPA identify mold as a significant indoor health hazard. Common symptoms include respiratory irritation, allergic reactions, and asthma exacerbation.
- Mold begins growing within 24–48 hours on damp surfaces when relative humidity exceeds 60%. Bathrooms, basements, and crawl spaces are most vulnerable.
- Professional mold remediation costs $1,500–$9,000 on average. Homeowner insurance often excludes mold coverage unless caused by a "covered peril."
- Homes built before 1980 typically lack modern vapor barriers and ventilation systems, increasing moisture infiltration risk.
Prevention Recommendations
- Use a dehumidifier to keep indoor humidity below 50%. This is especially important in basements, crawl spaces, and bathrooms in high-humidity areas like 99591.
- Ensure proper ventilation: use exhaust fans in bathrooms and kitchens, and keep attic and crawl space vents unblocked.
- Fix leaks immediately. Even small plumbing leaks can create mold-favorable conditions within 48 hours.
- Homes built around 1975 often lack modern vapor barriers. Consider a professional moisture assessment to identify hidden problem areas.
- Monitor indoor humidity with a hygrometer ($10–$20). Target 30–50% year-round.
With 73% average humidity, a dehumidifier is the most effective way to reduce mold risk in 99591. Energy Star-rated units cost $200–$400 and can reduce humidity by 20–30%.
Respiratory Risk Today
High RiskSuperfund Sites & Soil Contamination Risk
What Are Superfund NPL Sites?
The National Priorities List (NPL) is the EPA's list of the most contaminated sites in the United States. These sites are eligible for federal cleanup funding under CERCLA (the "Superfund" law). Common contaminants include heavy metals, volatile organic compounds (VOCs), pesticides, and industrial solvents that can leach into soil, groundwater, and air.
- Active Cleanup: EPA is investigating or remediating the site — contamination may still be present.
- Construction Complete: Physical cleanup is done, but long-term monitoring continues.
- Deleted: Site meets EPA cleanup standards and has been removed from the NPL.
Know What's in Your Soil
If you live near a Superfund site, a home soil test kit can detect heavy metals, lead, and other contaminants — especially important if you garden, have children, or use well water.
Product links may earn a commission — see our disclosure.
Pollution and Population Health
This section places two independent federal datasets side by side: environmental measurements from the EPA and population-health estimates from the CDC. They describe the same ZIP code but are collected separately, and each one is read on its own terms.
Local pollution measurements
Air, traffic and contaminated-site indicators for this ZIP code, from EPA programs.
Each bar is this ZIP code’s EJScreen national percentile; a higher value means more exposure compared with other U.S. areas.
EPA AirData has insufficient reporting cycles or facilities for Aleutians West County, AK — trend display held.
Two independent datasets. Air and soil pollution data (EPA) and health-prevalence data (CDC) are independent datasets shown side by side for context only. ZipCheckup does not establish a causal link between local pollution and any health condition, and these figures do not demonstrate one.
Population-health estimates
CDC PLACES modeled prevalence among adults in this ZIP code, each shown with its 95% confidence interval. The prior-release figure is shown alongside as a reference point only; CDC explicitly cautions that small-area year-to-year differences may reflect model recalibration rather than real change.
Modeled small-area estimates produced from the BRFSS national survey and census demographics (Zhang et al. 2014). Not direct measurements; not for diagnostic or screening use.
Only CDC PLACES measures present in every release since 2020 appear with a prior-release reference; newer measures (added in 2023 and later) are presented without a prior figure.
Food access for this area
How the USDA classifies access to grocery stores and fresh food across the surrounding census tract.
USDA Food Access Research Atlas tract estimates, mapped from census tract to ZIP code. These are modeled population-level figures, not findings about any individual or any specific address.
Pollution–Health Comparison Index
In 99591, the CDC models adult-asthma prevalence at 13.2%, while a statistical model of local pollution and poverty predicts about 11.5% — well above the model’s prediction.
Among U.S. ZIP codes, this one sits at percentile 95 for how far observed asthma is above or below the model’s prediction.
The Pollution–Health Comparison Index is a percentile rank showing how this ZIP code’s observed asthma prevalence compares with what a statistical model would predict from local pollution and poverty alone. It describes a statistical association, not a cause-and-effect relationship.
Here, local pollution and the comparison index point in opposite directions — a reminder that many factors, including age, income, smoking, occupation and healthcare access, shape health outcomes, which is why these datasets show association at most, never causation.
Home & Infrastructure (6) MODERATE
Home Buyer Risk Report
An inspection-grade snapshot of public-data risk factors for this ZIP, built to help a buyer decide what to verify before closing.
Public federal data shows a low overall risk profile for this ZIP. The checklist below works alongside a standard home inspection.
Seven-factor inspection checklist
Each factor below is scored 0–100 from public federal data. A higher score means the factor is more worth verifying before you buy.
The local water system's recent EPA violation and contaminant history, along with an independent tap-water test, gives more context.
The FEMA flood zone, whether the property has flooded before, and flood-insurance requirements are key points to review.
Homes built before 1986 may have lead pipes or solder, and pre-1978 homes may have lead paint — a lead inspection adds clarity.
Heating and cooling costs and the age of the HVAC system, along with recent utility bills, give a fuller picture.
Older homes more often have aging plumbing, wiring, and a water heater near end of life — a full inspection adds detail.
Nearby hazards
Modeled probability of a local water-service disruption in the next 90 days.
See the 90-day disruption outlookInspection-day checklist
Practical items to raise with your inspector, agent, or the seller — tailored to this ZIP's data.
- Get a lead inspection — homes built before 1978 may contain lead paint and pre-1986 homes may have lead pipes or solder.
- Review the local water system's recent disruption and violation history with the utility.
- Hire an independent home inspector for a full walkthrough of the property.
- Read the seller's disclosure and any past inspection or repair records.
- Ask for service records for the HVAC system, water heater, and roof.
What this means
- This report consolidates seven home-purchase risk factors and nearby hazards from public federal data into one place.
- Each flagged item is a recommendation to verify independently — not a finding of a defect.
- An independent home inspection remains an essential step before closing.
Methodology: The report combines the home purchase risk score — a seven-factor composite of public federal data — with EPA Superfund, ATSDR, water-disruption, and NRC nuclear-zone proximity datasets. All figures are modeled estimates.
Informational only. This is a modeled summary of public federal data, not a home inspection, an appraisal, or a prediction of defects. Verify any concern with a qualified inspector before a purchase.
Housing Profile for 99591
Based on U.S. Census data (ACS B25034), there are 24 housing units in this ZIP code. The median home was built around 1975, making it roughly 51 years old.
When Homes Were Built
What This Means for Home Equipment
Homes built in the 1975s era typically have equipment that has been replaced at least once. Based on typical replacement cycles:
- Water heater: estimated ~3 years old (avg lifespan: 12 years)
- HVAC system: estimated ~0 years old (avg lifespan: 17 years)
- Plumbing: likely Copper — older homes in this ZIP may still have original lead service lines
Home Value Context
Estimated median home value in this ZIP code based on Census ACS data. Safety remediation costs include water filtration, lead abatement, radon mitigation, and flood insurance where applicable.
Equipment Age Estimate for 99591
Based on Census data, the median home in this ZIP was built in 1975 (~51 years old). 75% of homes were built before 1986.
The EPA Lead and Copper Rule Improvements (LCRI), finalized October 2024, requires all water utilities to:
- By October 2027: Complete a lead service line inventory and notify all customers with lead or unknown lines
- By ~2037: Replace 100% of lead service lines (mandatory 10-year deadline)
- New action level: Lowered from 15 ppb to 10 ppb — more homes now trigger mandatory action
75% of homes in ZIP 99591 were built before 1986 — the year lead solder was banned. If you receive a notification letter from your water utility, your home likely has lead service lines or lead solder connections.
- Get your water tested for lead (request a test kit from your utility at no cost)
- Install a certified lead-reducing filter (NSF/ANSI 53)
- Contact your utility about replacement assistance — costs run $5,000–$15,000, utilities may cover a portion under LCRI
- Have a plumber inspect your service line connection
Likely pipe material: Copper
Estimates based on U.S. Census ACS housing vintage data and typical equipment lifespans. Actual conditions vary by home.
Water Infrastructure Risk
Risk Factor Breakdown
What This Means
The water infrastructure serving ZIP code 99591 shows multiple risk factors. Most homes in this area were built before 1980, meaning plumbing may contain lead solder or galvanized pipes that corrode over time. The state faces a significant infrastructure funding gap of $1,048 per resident over 20 years. Consider testing your tap water, especially if you have an older home.
Infrastructure Decay & Disruption
Water pipe decay
Local water mains are modeled to reach a critical service threshold within about 2 years.
Bridge condition (FHWA NBI)
Bridge figures are from the Federal Highway Administration's National Bridge Inventory. They describe area-level structural ratings, not the safety of any specific bridge.
Bridge condition — FHWA NBI 2024 annual release
Of 8 bridges classified within this ZIP code's surrounding county, 0 are classified Poor by FHWA NBI 2024.
Good (6) · Fair (2) · Poor (0)
FHWA classifies bridges as Good (rating 7-9), Fair (5-6), or Poor (0-4) based on biennial inspections of deck, superstructure, substructure, and culvert components.
Counts are county-level aggregated; multiple ZIP codes within the same county share these counts. No per-bridge or per-structure-ID claim is made.
Source: FHWA National Bridge Inventory, 2024 annual release.
Gas pipeline incident history
PHMSA records no reported gas-distribution pipeline incidents on file for this area.
Source: U.S. Pipeline and Hazardous Materials Safety Administration (PHMSA) historical incident data.
This is the modeled probability of a boil-water advisory or water-service interruption in the next 90 days.
See the full service-disruption breakdown →What this means
- This score blends four public federal datasets — water-pipe decay, bridge condition, gas-pipeline incident history, and a 90-day disruption estimate — into one area-level measure of infrastructure stress.
- It describes the infrastructure around a home, not the condition of the home itself, and it is a modeled estimate rather than an engineering assessment.
- Aging water mains raise the chance of breaks and service interruptions; a plumber can inspect a home's own supply line and shut-off valve.
Methodology: Water-pipe decay is modeled with an exponential-decay bathtub curve from Census ACS housing age, EPA ECHO compliance records, and EPA infrastructure-needs data. Bridge condition is from the FHWA National Bridge Inventory; gas-pipeline incidents from PHMSA; the 90-day disruption estimate from EPA and FEMA data. The stress score is a weighted composite of these four signals.
All figures are modeled estimates from public federal data. They are not engineering assessments, predictions of failure, or a judgment about any specific structure or utility.
Appliance Age Estimates for 99591
Median home built in 1975 (~51 years old). Appliance ages estimated from typical replacement cycles.
1 appliance likely is near or past typical replacement age.
How Water Quality Affects Appliance Lifespan
Water conditions in Saint George Island directly impact how long your appliances last.
Homes built before 1996 have likely gone through 2+ full appliance replacement cycles. If original appliances remain, they are well past expected lifespan.
Appliance Maintenance FAQ
How often should I flush my water heater?
Flush your tank water heater at least once a year to remove sediment buildup. In areas with hard water, every 6 months is recommended. Sediment reduces heating efficiency and accelerates tank corrosion, shortening lifespan by 2–4 years.
When should I replace my dishwasher vs. repair it?
If your dishwasher is over 9 years old and the repair costs more than 50% of a new unit, replacement is generally more cost-effective. Common signs: dishes not getting clean, water pooling after cycles, or rust spots on the interior.
Does a water softener really extend appliance life?
Yes. A water softener can extend water heater lifespan by up to 30% and reduce dishwasher and washing machine maintenance by preventing mineral scale buildup on heating elements, valves, and spray arms. The Battelle Memorial Institute found that softened water kept water heaters at original factory efficiency over a 15-year period.
Estimates based on U.S. Census housing vintage data and manufacturer-average replacement cycles. Actual appliance age depends on renovation history and maintenance.
Electrical Safety for 99591
Median home built in 1975 (~51 years old). 38% of homes were built before 1970, when electrical standards were significantly different.
Common Electrical Issues for 1975-Era Homes
- Knob-and-tube wiring — common in pre-1950 homes, lacks grounding and cannot safely handle modern electrical loads
- Undersized electrical panel — 60–100 amp panels typical of this era cannot support today's appliances, EV chargers, or HVAC systems
- Aluminum wiring — used in 1960s–1970s homes, poses fire risk at connections due to oxidation and thermal expansion
- Ungrounded outlets — two-prong outlets indicate missing ground wire, increasing shock and surge risk
- Federal Pacific / Zinsco panels — common in 1960s–1980s homes, known for breaker failure; replacement strongly recommended
⚠️ Insurance Compliance Alert
75% of homes in 99591 were built before 1986 — the era when Federal Pacific (FPE StabLok), Zinsco, and Challenger electrical panels were commonly installed.
These panels have a documented 60%+ breaker failure rate and are refused by major insurance companies including State Farm, Allstate, and Citizens (FL).
If you receive an insurance non-renewal notice or 4-point inspection failure:
- Typical deadline: 30 days to replace panel
- Replacement cost: $1,500–$4,000
- Failure to replace: insurance cancellation → mortgage default risk
Insurance blacklist: State Farm, Farmers, Allstate, USAA, Mercury, Citizens (FL), Nationwide.
When to Call an Electrician
- Burning smell from outlets or panel
- Frequent breaker trips
- Sparking or discolored outlets
- Buzzing sounds from wiring or panel
- Before buying a home (especially pre-1980)
- After any water damage or flooding
- Before adding major appliances or EV charger
- If your panel is 25+ years old
Electrical Safety Tips
- Never use a fuse with a higher amperage rating than the circuit is designed for
- Label all breakers clearly in your electrical panel
- Keep 3 feet of clearance in front of your electrical panel
- Test GFCI outlets monthly using the built-in test button
- Replace any cracked or warm outlet covers immediately
- Do not daisy-chain power strips or extension cords
Homes built before 1976 likely have outdated wiring and panels that do not meet current electrical codes. A professional electrical inspection is strongly recommended.
Electrical Safety Questions for 99591
How do I know if my electrical panel needs an upgrade?
Key signs include: frequent breaker trips, a panel over 25 years old, fuses instead of circuit breakers, visible rust or corrosion, and a panel rated below 200 amps if you have modern appliances, HVAC, or an EV charger. Based on census data, the median home in 99591 was built in 1975 — homes of this age often have panels that don't meet current electrical demands.
How much does an electrical panel upgrade cost?
A panel upgrade from 100 to 200 amps typically costs $1,500–$4,000 depending on your location and the complexity of the work. If the meter base or service entrance also needs replacement, costs can reach $4,000–$6,000. Rewiring a full home (common in pre-1960 homes) ranges from $8,000–$15,000+ depending on size and accessibility.
Is aluminum wiring dangerous?
Aluminum wiring itself is not inherently dangerous, but connections between aluminum wiring and copper devices (outlets, switches) can overheat due to differential thermal expansion. The Consumer Product Safety Commission (CPSC) found that homes with aluminum wiring are 55 times more likely to have fire-hazard conditions. If your home has aluminum wiring, a qualified electrician can install COPALUM or AlumiConn connectors to make connections safe.
Is my home likely to have a Federal Pacific or Zinsco panel?
These panels were installed primarily between 1960 and 1985. Based on census data, 75% of homes in 99591 were built during this era. If your home was built in this period and the panel has never been replaced, there is a meaningful chance it contains an FPE StabLok or Zinsco panel. Look for the brand name on your breaker panel door.
Electrical risk assessment based on U.S. Census ACS housing vintage data. Actual wiring and panel condition varies by home and renovation history.
CO & Gas Safety Profile
CO & Gas Safety Tips
- Install CO detectors on every level of your home and near sleeping areas. Replace batteries annually and units every 5-7 years.
- Know gas leak signs: rotten egg smell, hissing sounds near gas lines, dead vegetation near pipelines, bubbling in standing water.
- Annual inspection: have a licensed technician inspect gas appliances (furnace, water heater, stove) every year.
- Emergency: if you smell gas, leave immediately, do not use electrical switches, and call 911 or your gas company from outside.
Protect Your Home from Carbon Monoxide
The CPSC recommends a CO detector on every level. Battery-operated models start at $20. Smart detectors with app alerts start at $35.
Product link may earn a commission — see our disclosure.
Remodeling Permit Requirements in Alaska
✓ Limited EnforcementStructural, electrical, plumbing, mechanical in municipalities that adopt building codes. Unincorporated areas may not require permits.
Fines vary by municipality; Anchorage up to $300/day
Why This Matters
- Unpermitted work can reduce your home's appraised value by 10–20% and complicate or block a sale entirely.
- Homeowner insurance may deny claims for damage caused by or related to unpermitted renovations.
- Buyers' lenders may require proof of permits before approving a mortgage, especially for kitchens, bathrooms, and structural changes.
- Unpermitted electrical and plumbing work is a leading cause of house fires and water damage — permits exist to ensure safety inspections.
- If you are planning remodeling work in Alaska, contact your local building department before starting any project that alters structure, electrical, plumbing, or mechanical systems.
Remodeling Permit Questions for 99591
What remodeling work requires a permit in Alaska?
In Alaska, permits are generally required for any work that alters the structure, electrical wiring, plumbing, or mechanical systems of a home. This includes kitchen and bathroom renovations involving plumbing or electrical changes, wall removal, room additions, window enlargements, re-roofing, and HVAC replacement. Purely cosmetic work — painting, flooring, cabinet refacing without plumbing changes — typically does not require a permit. Always check with your local building department, as municipal requirements may be stricter than state minimums.
What happens if I remodel without a permit in Alaska?
Working without a required permit in Alaska can result in Fines vary by municipality; Anchorage up to $300/day. Beyond legal penalties, unpermitted work creates problems when selling: buyers' home inspectors and appraisers flag unpermitted additions, lenders may refuse financing, and title companies may require permits to be obtained retroactively — often at 2–3 times the original permit fee. In serious cases, you may be required to open walls for inspection or demolish non-compliant work.
How much does a remodeling permit cost in Alaska?
Remodeling permit fees in Alaska typically range from $75 to $2000, depending on the scope and value of the project. Most jurisdictions calculate fees as a percentage of the project's estimated construction cost (usually 1–2%) or use a flat fee schedule based on project type. Electrical and plumbing sub-permits may be billed separately. Contact your local building department for an exact fee quote before starting work.
Permit requirements based on Alaska building codes and ICC adoption data. Costs reflect typical municipal fee schedules and may vary by jurisdiction, project scope, and valuation. This information is for general guidance only — contact your local building department for requirements specific to your project.
Cost & Community (4) OK
True Cost of Ownership
How this ZIP compares
Where the estimate comes from
5-year equipment outlook
No major equipment is flagged for likely replacement within five years.
What this means
- This is a modeled estimate of how much more — or less — a household here may spend each year on risk-related costs such as insurance, mitigation, testing, and maintenance, compared with a typical US ZIP.
- It is a comparison figure for context, not a bill, a quote, or financial advice.
- The 5-year equipment ranges above are separate one-time replacements, not part of the annual figure.
Methodology: Each of 13 risk verticals is assigned a dollar figure from public federal data; the total is the modeled annual difference from a median-risk US ZIP. The 5-year equipment outlook flags major home equipment whose estimated age is within five years of its typical service life; figures are national-average installed-cost ranges.
Estimates are modeled from public federal data. They are not quotes, prices, or financial or insurance advice.
Tax Burden in Alaska
State tax rates affect cost of ownership. Here's how Alaska compares to national averages.
No state income or sales tax; local sales taxes apply in some areas
Source: Tax Foundation 2024. Income tax = top marginal rate. Sales tax = state + avg local. Property tax = effective rate on home value.
Energy Costs in Alaska
Residential electricity rate: 25.52¢/kWh — 50% above the national average (national avg: 17.0¢/kWh · EIA, December 2025)
Alaska Energy Mix
Source: EIA Form 923, 2025 data. Renewable = solar + wind + hydro + geothermal.
Home Energy Audit for 99591
The Inflation Reduction Act provides up to $8,000 in rebates and $3,200 in annual tax credits for home energy upgrades — but many provisions phase down or expire after 2032. A professional energy audit is the first step to qualifying for these incentives. Homes in 99591 average ~51 years old, making energy audits especially impactful.
What a Home Energy Audit Covers
- Insulation levels in attic, walls, and basement
- Air leaks around windows, doors, and ducts
- Blower door test (measures total air leakage)
- HVAC efficiency and age assessment
- Water heater type and condition
- Lighting and appliance energy use
- Carbon monoxide and combustion safety
- Moisture and ventilation assessment
- Gas leak detection
- Prioritized list of recommended upgrades
- Estimated cost and savings for each upgrade
- Rebate and tax credit eligibility report
- The average home energy audit identifies $200–$400/year in savings (DOE)
- Properly sealed and insulated homes save 15% on heating and cooling costs (DOE)
- Heat pump upgrades can reduce heating costs by 30–50% compared to electric resistance
- ENERGY STAR certified windows save $101–$583/year compared to single-pane windows
- Weatherization assistance programs are available for income-qualifying households
Homes in 99591 are ~51 years old on average — older homes typically have the most to gain from an energy audit due to outdated insulation, single-pane windows, and aging HVAC systems.
Under the Inflation Reduction Act. Income limits apply for HEEHRA rebates. Tax credits require tax liability. IRS details →
To claim the $150 federal tax credit, your energy audit must meet DOE standards (10 CFR 440.21) and be performed by a qualified auditor. A DOE-compliant audit includes:
- Blower door test to measure air infiltration
- Infrared thermography to identify insulation gaps
- Combustion safety testing for gas appliances
- Written report with prioritized, cost-effective upgrade recommendations
Energy Audit Questions for 99591
How much does a home energy audit cost?
A professional home energy audit typically costs $150–$400 depending on the size of your home and the depth of testing. The Inflation Reduction Act provides a $150 tax credit for qualifying audits performed by a certified auditor, effectively covering a significant portion of the audit cost. Some utilities also subsidize audits for their customers.
What is the difference between an energy audit and a home inspection?
A home inspection (done during a home sale) evaluates structural and safety conditions. An energy audit specifically measures how your home uses energy and identifies efficiency improvements. Energy audits use specialized tools like blower doors, infrared cameras, and duct blasters that are not part of a standard home inspection. The audit produces a prioritized list of upgrades with estimated costs and savings.
How much can I save after an energy audit?
According to the U.S. Department of Energy, the average audit identifies $200–$400/year in savings. Actual savings depend on your home's age, current insulation, HVAC efficiency, and local energy rates. At current rates in Alaska, the average home spends approximately $2,680/year on electricity — a 15–25% reduction through audit-recommended upgrades could save $402–$670 annually. With homes in 99591 averaging ~51 years old, there is likely significant potential for improvement.
What rebates and tax credits are available for energy upgrades?
The Inflation Reduction Act (IRA) provides two types of incentives: (1) Tax credits up to $3,200/year for heat pumps ($2,000), insulation ($1,600), windows ($600), and the audit itself ($150); and (2) HEEHRA rebates for income-qualifying households — up to $8,000 for heat pumps, $1,600 for insulation, $2,500 for electrical panels, and $840 for heat pump dryers. Solar panels qualify for a separate 30% tax credit through 2032.
Do I need an energy audit before installing solar panels?
An energy audit is not legally required before installing solar, but the DOE strongly recommends it. Reducing your home's energy consumption before adding solar means you need a smaller (cheaper) system to cover your needs. An audit typically identifies 15–30% in energy reductions through insulation, air sealing, and HVAC improvements — which directly reduces the size and cost of a solar installation.
How long does a home energy audit take?
A comprehensive energy audit takes 2–4 hours for a typical single-family home. The auditor will inspect the attic, basement, walls, windows, HVAC system, water heater, and ductwork. Diagnostic tests (blower door, infrared scan) add precision to the findings. You will receive a written report within 1–2 weeks with prioritized recommendations and estimated costs.
Source: U.S. Energy Information Administration (EIA), U.S. Department of Energy (DOE), Inflation Reduction Act of 2022 (P.L. 117-169).
Safety Updates for Saint George Island, Alaska
Violations & Enforcement Timeline
View all 10 records
Related Anomalies
Recent Product Recalls
Recent CPSC recalls for plumbing and HVAC products that may affect homes in your area.
Superbobi 7 3/8 Inch Pool Drain Covers
Shenzhen Jiangtou Technology Co. · 2026-05-14
Electric Kettles (ENFINIGY 1.5 l and ENFINIGY Pro 1.5 l)
ZWILLING J. A. Henckels Aktiengesellschaft · 2026-05-14
Electric Start Pressure Washers
Generac Power Systems Expands · 2026-05-14
1-K Kerosene Heater Fluid Portable Fuel Containers
Alliance Chemical · 2026-04-30
Protect Your Home in Saint George Island
Based on local data for ZIP 99591, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Gutter Installation & Repair
Homes in 99591 were built around 1975 on average. Aging gutters can cause foundation damage, basement flooding, and mold — a professional assessment can prevent costly repairs.
Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home
Estimate Your Home Maintenance CostsWindow Replacement
With a median build year of 1975, many homes in Saint George Island likely have original or outdated windows. ENERGY STAR windows can save $101–$583/year on energy bills.
Typical cost: Window replacement: typically $300–$800 per window installed
Estimate Your Home Maintenance CostsRoofing Inspection & Repair
Homes built around 1975 may be on their second or third roof. A professional inspection can catch damage before leaks start.
Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500
Estimate Your Home Insurance NeedsService recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.
Frequently Asked Questions
Is the tap water in 99591 safe to drink?
Based on EPA SDWIS data, Saint George Island's primary water system (Unalaska Water System) has 0 recorded violations in the past 5 years, including 0 health-based. Check the full report above for details.
Where does 99591's water come from?
The primary water source for ZIP code 99591 is Surface water. Unalaska Water System serves approximately 9,400 people.
How can I get my water tested in Saint George Island?
Contact your local water utility (Unalaska Water System) for a free Consumer Confidence Report, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 99591
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 99660 | Saint Paul Island, AK | 47.7 mi | D | 0 |
| 99692 | Dutch Harbor, AK | 222.7 mi | D | 0 |
| 99685 | Unalaska, AK | 223.3 mi | A | 11 |
| 99553 | Akutan, AK | 226.5 mi | A | 149 |
| 99638 | Nikolski, AK | 254.4 mi | A | 0 |
| 99583 | False Pass, AK | 269.7 mi | A | 7 |
| 99571 | Cold Bay, AK | 284.3 mi | A | 3 |
| 99630 | Mekoryuk, AK | 287.0 mi | A | 12 |
| 99612 | King Cove, AK | 302.7 mi | A | 6 |
| 99614 | Kipnuk, AK | 305.0 mi | B | 42 |
Nearby ZIP Code Reports
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Overall safety breakdown
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