Water Quality Report

Guam, GU (96913): No EPA Water System

No EPA-registered water system mapped - county-level context only

The directly mapped EPA record for 96913 in Guam, GU does not contain a complete violation count and source window. ZipCheckup does not infer a clean record from missing or partial data.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources
Your water right now: No EPA water system mapped to this ZIP
Safety Score N/A
Water Quality N/A
Lead Risk N/A
NFIP Claim History Claim records 14 claims
Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

  • Water No EPA violations on record for the past 5 years.
  • Flood 14 cumulative NFIP claim records. Claim evidence is historical, not current map coverage.
Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: source date or period is not present in ZipCheckup's accepted source record Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record

What’s Happening in Guam, GU

No significant water quality or safety concerns have been reported for this area. The safety score is stable.

1
Water System
0
People Served
0
Health Violations (5yr)
N/A
Water Source

This Fall - what to check

Season-specific maintenance for home safety. Universal tasks - apply everywhere unless noted.

  • Heating System

    Service furnace or heat pump before peak heating season. Check flue, inspect burner, verify gas pressure.

    Source: DOE
  • CO Detector

    Replace batteries and alarms > 7 years. Carbon monoxide incidents cluster in first cold weeks.

    Source: CPSC
  • Chimney & Vents

    Sweep chimney if used last winter. Clear dryer vents (lint causes 2,900+ home fires annually per FEMA).

    Source: FEMA USFA

Get notified when water quality changes in your area

Free alerts when new EPA data affects ZIP code 96913. No spam - just safety updates.

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Limited data available for ZIP 96913

This ZIP code has fewer data sources than average. We show everything we have from EPA, FEMA, Census, and other federal databases. As new data becomes available, this report will update automatically.

Score Breakdown

Overall Home Safety Score: Score unavailable

Required evidence is missing. Missing values remain unknown and are not imputed or renormalized.

Canonical components

EPA water compliance
Unknown
Evidence missing
PFAS MCL screen
0/100
Observed
EPA radon zone
Unknown
Evidence missing
Annual EPA AirData AQI
Unknown
Evidence missing

Required domains

Drinking water
Unknown
Indoor environment
Unknown
Outdoor environment
Unknown

Coverage: 1 of 4 components and 0 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (0) NO DATA

No EPA Water System Mapped to This ZIP

ZIP code 96913 in Guam, GU has no community water system directly registered with the EPA Safe Drinking Water Information System (SDWIS). This typically means residents rely on private wells, shared small systems that don't meet EPA reporting thresholds, or are served by a neighboring district that hasn't been cross-referenced to this ZIP.

The information below reflects county-level context for Guam, GU - including any EPA violations, environmental hazards, or demographic factors that affect home safety in the surrounding area. It is not a water quality report for a specific utility.

If you know your water provider, search directly for its PWSID or name, or use the state SDWIS lookup to find the system serving your address.

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)

No wildfires 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: No Data (score: 0.0/50)

Metric Value
Risk Score 0.0
Risk Rating No Data
Annual Frequency < 0.001 damaging events/yr
Expected Annual Loss $0 (No Data)

Monitor seismic activity at the USGS Earthquake Map. Secure heavy furniture, maintain an emergency kit, and know your gas shutoff location.

Violation Summary

No water system data - No EPA-registered water system is mapped to ZIP 96913, so there are no violation records to display. Absence of data is not a clean bill of health. Residents on private wells should test their own water periodically.

Local Contractor Availability

Contractor availability data for the Guam area is based on national BLS averages.

Trade Workers Avg Hourly Rate
Plumbers & Pipefitters 465,840 $34.70/hr
Electricians 757,220 $34.37/hr
HVAC Technicians 409,670 $31.14/hr
Carpenters 670,090 $31.55/hr

Source: BLS Occupational Employment and Wage Statistics, 2025 annual data.

Need help with your water quality?

Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400

Find the Right Water Filter

Free tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.

What You Can Do

  1. Review your annual Consumer Confidence Report (CCR) - Your utility publishes this each July
  2. Test your home's water - Especially if you have older plumbing (pre-1986) that may contain lead
  3. 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 Filter

Free tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.

Other Water Quality Reports in GU

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). No EPA-registered water system is mapped to ZIP 96913. To look up the system serving a specific address, use the state SDWIS search tool.

Frequently Asked Questions

Is the tap water in 96913 safe to drink?

No EPA-registered public water system is mapped to ZIP 96913, so there is no federal water quality record to assess. Residents in this area are typically served by private wells or very small systems below EPA reporting thresholds. If you rely on a private well, the CDC recommends testing it at least once a year for bacteria, nitrates, and any local contaminants of concern.

Where does 96913's water come from?

There is no community water system directly registered with the EPA for ZIP 96913. Most residents in this area rely on private wells drawing from groundwater, or are served by a neighboring district that isn't cross-referenced to this ZIP in federal data. Check with your local county health department to confirm your water source.

How can I get my water tested?

Since no EPA-registered water utility is mapped to ZIP 96913, contact your local county health department or hire a certified lab for independent home water testing. The EPA recommends testing private wells at least once a year for bacteria, nitrates, and any local contaminants of concern.

Does 96913 have lead in the water?

No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 96913. If you are concerned about lead, contact your water utility or have your tap water independently tested.

What is the radon risk in 96913?

Radon zone data is not available for ZIP code 96913. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.

📊 EPA Safe Drinking Water · Updated March 2026 · View source →
Environmental Hazards (5) CRITICAL

Historical NFIP Claim Profile

14
Notable Claim History
FEMA flood insurance claims filed in 96913
Reported Payment-Component Sum
$186,709
across 9 claims with payment data
Average Reported Components
$20,745
among 9 claims with payment data
Rated Zone in Claim Records
A
most frequent value among historical claims; not a current map
Claims from 2022 through 2026-07-27
0
loss-date window reported by the source
Claims Without Payment Fields
5
not treated as zero

FEMA Flood Zones Explained

  • Zone A / AE - High-risk (100-year floodplain). Flood insurance required for federally backed mortgages
  • Zone V / VE - High-risk coastal area with wave action. Strictest building requirements
  • Zone X - Moderate-to-low risk (500-year floodplain or minimal flood hazard)
  • Zone B / C - Areas of moderate or minimal flood hazard
📊 FEMA NFIP · Updated 2004-06-28 · View source →

Wildfire & Smoke Risk Profile

0
Very Low Smoke Risk
Wildfire smoke exposure risk score for 96913
County Fires (5yr)
0
wildfires in county since 2021
Risk Level
Very Low
based on fire proximity & history
Air Quality
Generally Good
during fire season (Jun–Nov)
SMOKE RISK SCORE 0/100
0 - Minimal 100 - Highest Risk

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.

📊 NIFC Wildfire Data & EPA AirNow · Updated March 2026 · View source →

Earthquake & Seismic Risk Profile

0.0
LOW RISK
FEMA National Risk Index earthquake score for 96913
Risk Rating
No Data
FEMA earthquake hazard classification
Expected Annual Loss
$0
estimated county-level annual loss (No Data)
Annual Frequency
< 0.001
expected damaging earthquakes per year
Structural Vulnerability
Low
based on housing age + seismic zone
EARTHQUAKE RISK SCORE 0.0/50
0 - Minimal 50 - Highest Risk

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.

📊 FEMA National Risk Index & USGS · Updated March 2026 · View source →

Mold Risk Assessment for 96913

High Risk
68/100
Mold Probability Score
Based on humidity, housing age, flood history & water infrastructure
Avg. Humidity
79%
annual relative humidity
Summer Humidity
80%
Jun–Aug average
Flood Claims
14
FEMA insurance claims
Seasonal Risk

Summer months (June–August) present the highest mold risk in 96913, with average humidity reaching 80%. Indoor humidity can be 10–15% higher in poorly ventilated spaces. Winter humidity drops to 77%, 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 96913.
  • 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.
  • Monitor indoor humidity with a hygrometer ($10–$20). Target 30–50% year-round.
Recommended: Whole-Home Dehumidifier

With 79% average humidity, a dehumidifier is the most effective way to reduce mold risk in 96913. Energy Star-rated units cost $200–$400 and can reduce humidity by 20–30%.

Compare Dehumidifiers
As an Amazon Associate, ZipCheckup earns from qualifying purchases.
Sources: NOAA Climate Normals 1991–2020 (humidity), U.S. Census ACS (housing age), FEMA NFIP (flood claims), EPA SDWIS (water violations). Score methodology: humidity 40%, housing age 30%, flood history 20%, water infrastructure 10%.

Respiratory Risk Snapshot

Severe Risk
73
Respiratory Risk Score
Combined air quality, humidity & mold risk for 96913
Air Quality
N/A
EPA AQI index
Humidity
24/30
seasonal impact
Mold
20/30
housing + humidity
RISK SCORE 73/100
Low Moderate Severe
High humidity is the top respiratory concern
A whole-home dehumidifier can reduce indoor humidity to the 30–50% comfort zone, reducing mold growth and dust mite populations.
Sources: EPA AirNow, NOAA humidity normals, mold risk model (housing age + humidity + flood history). Source publication periods vary; observation times are shown when available. Score combines air quality (40%), humidity stress (30%), and mold risk (30%).
Home & Infrastructure (1) OK

CO & Gas Safety Profile

0
Low Gas Risk
PHMSA gas distribution incident risk score for 96913
County Incidents
0
gas distribution incidents since 2004
Fatalities
0
no deaths reported
Risk Level
Low
based on incident history
RISK SCORE 0/100
0 - Safe 100 - Highest Risk

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.

📊 PHMSA Gas Distribution Incidents · Updated March 2026 · View source →
Cost & Community (4) OK

True Cost of Ownership

$600
estimated extra annual cost vs a median-risk US ZIP
Higher modeled annual risk-cost than 34% of US ZIP codes

How this ZIP compares

US median ZIP
$970
per year
US median ZIP
$970
per year

Where the estimate comes from

Flood$600

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.

Subsidized rental housing in this ZIP

These counts come from HUD's Picture of Subsidized Households, which tracks federally subsidized rental units across all HUD programs. They describe housing assistance reported in this ZIP, not a judgment about the area.

HUD reports 802 federally subsidized rental units in this ZIP.

What HUD reports here:

Subsidized rental units 802
Units occupied 772
People housed 3,001

Source: HUD Picture of Subsidized Households, 2025. HUD suppresses small counts; a suppressed value is treated as not reported, not zero.

CPSC product recall notices

These national notices are not matched to this ZIP code or water system.

View all recalls →

📊 CPSC · Updated March 2026 · View source →

Local Contractor Availability

Plumbers & Pipefitters
465,840
$34.70/hr avg
Electricians
757,220
$34.37/hr avg
HVAC Technicians
409,670
$31.14/hr avg
Carpenters
670,090
$31.55/hr avg

Source: Bureau of Labor Statistics, Occupational Employment & Wage Statistics, 2025.

Protect Your Home in Guam

Based on local data for ZIP 96913, these services may benefit homeowners in your area.

Based on local data for your area. Use the tools below to explore your options.

Home & Flood Insurance

Guam has 14 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.

Typical cost: Flood insurance: typically $700–$1,500/year in flood-prone areas

Check Your Flood Zone (Free)

FEMA flood map lookup - see if your property is in a flood zone

Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)

Service 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.

SNAP food retailers in this ZIP

These are stores located in this ZIP that are currently authorized to accept SNAP (food stamp) benefits. The count reflects where stores are located, not how easy groceries are to reach; a resident may shop in a nearby ZIP.

73 SNAP-authorized food retailers are located in this ZIP.

Store types located here:

Grocery and supermarket stores 44
Convenience stores 23
Specialty and other stores 6

Source: USDA FNS Historical SNAP Retailer Locator (active authorizations), December 2025. A store is counted where it is located; this is not a measure of grocery access.

Frequently Asked Questions

Is the tap water in 96913 safe to drink?

No EPA-registered public water system is mapped to ZIP 96913, so there is no federal water quality record to assess. Residents in this area typically rely on private wells or very small systems below EPA reporting thresholds. If you rely on a private well, the CDC recommends testing it at least once a year. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.

Where does 96913's water come from?

There is no community water system directly registered with the EPA for ZIP 96913. Most residents rely on private wells drawing from groundwater, or are served by a neighboring district that isn't cross-referenced to this ZIP in federal data. Check with your local county health department to confirm your source.

How does Guam water compare to the national average?

Guam's water quality ranks better than 67% of U.S. ZIP codes, and in the bottom 100% within GU.

How can I get my water tested in Guam?

Since no EPA-registered water utility is mapped to ZIP 96913, contact your local county health department or hire a certified lab for independent home water testing. The EPA recommends testing private wells at least once a year.

What does the NFIP claim history show for ZIP 96913?

FEMA records contain 14 flood insurance claims filed in ZIP code 96913; the dominant rated-zone value in those claims is A, which is not a current FEMA map designation. Claim records do not establish current property risk. Review FEMA's map for the specific property.

How to cite this page

APA ZipCheckup. (2026). Guam, GU (96913): No EPA Water System. https://zipcheckup.com/report/96913/
BibTeX
@misc{zipcheckup-report-96913,
  author = {{ZipCheckup}},
  title  = {{Guam, GU (96913): No EPA Water System}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/96913/}
}

Page version: September 2026.

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