Water Quality Report

San Jose, CA (95172): No EPA Water System

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

The directly mapped EPA record for 95172 in San Jose, CA 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
Safety Snapshot: Fair
AQI 44 Violations: None Alerts: 1
2026-08-31
Your water right now: No EPA water system mapped to this ZIP
AQI: 44 (Good) 1 weather alert
Updated: 2026-08-31
Safety Score N/A
Water Quality N/A
Lead Risk N/A
NFIP Claim History N/A
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.
  • Radon EPA Zone 2 - moderate county-level potential, not a home measurement.
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 AirNow observation: more than two update cycles old

What’s Happening in San Jose, California

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
Zone 2
Radon Risk · Moderate

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

Get notified when water quality changes in your area

Free alerts when new EPA data affects ZIP code 95172. No spam - just safety updates.

Unsubscribe anytime. We only send updates when your safety score changes. See our Privacy Policy.

How San Jose Compares

Safety Score vs. Santa Clara County and California averages

Metric San Jose Santa Clara County California
EPA Violations (total) 0 1.7 2

County and state averages computed from 41,345 ZIP codes. Data: EPA SDWIS.

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
Unknown
Evidence missing
EPA radon zone
50/100
Observed
Annual EPA AirData AQI
Unknown
Evidence missing

Required domains

Drinking water
Unknown
Indoor environment
50/100
Outdoor environment
Unknown

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

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

Safety & Health (4) MODERATE

Compliance Alerts for 95172

1 issue flagged based on EPA data, state regulations, and housing age estimates.

Radon Risk
Monitor
EPA Radon Zone 2 - moderate potential. Consider home radon test.

Estimates based on EPA data, U.S. Census ACS housing vintage, and state regulations. Individual homes may vary.

📊 EPA + Census ACS + State Regs · Updated March 2026

No EPA Water System Mapped to This ZIP

ZIP code 95172 in San Jose, California 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 San Jose, California - 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.

Radon Risk

Radon Zone 2 - Moderate county-level potential (Santa Clara County)

EPA Zone 2 indicates moderate county-level radon potential. It does not estimate a home's radon level; testing is needed before any threshold comparison.

CO & Gas Safety

Gas Distribution Risk: Low (score: 10/100)

23 gas distribution incidents recorded in this county since 2004. Most recent: 2023.

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: Moderate (score: 29/100)

5 wildfires recorded in this county over the past 5 years. Nearest recent wildfire: 33 km (21 miles).

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: Relatively High (score: 23.2/50)

Metric Value
Risk Score 23.2
Risk Rating Relatively High
Annual Frequency 0.0098 damaging events/yr
Expected Annual Loss $407.9M (Very High)

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

Superfund Site Proximity

Proximity Risk: High (score: 57/100)

Nearest NPL site: Lorentz Barrel & Drum Co. at 1.6 miles (2.5 km).

Radius NPL Sites
Within 5 km (3.1 mi) 1
Within 10 km (6.2 mi) 5
Within 25 km (15.5 mi) 23

Nearest NPL Sites

  • Lorentz Barrel & Drum Co. - 1.6 mi (Construction Complete), listed 10/04/1989
  • Intel Corp. (Santa Clara III) - 5.5 mi (Deleted), listed 06/10/1986
  • Synertek, Inc. (Building 1) - 5.7 mi (Construction Complete), listed 10/04/1989
  • Applied Materials - 5.9 mi (Construction Complete), listed 07/22/1987
  • Intel Magnetics - 6 mi (Construction Complete), listed 06/10/1986

Search nearby sites at the EPA Superfund Site Search. If you garden or use well water near an NPL site, consider soil and water testing.

Violation Summary

No water system data - No EPA-registered water system is mapped to ZIP 95172, 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.

Energy Costs in CA

Residential electricity rate: 35.25¢/kWh - 107% above the national average (17.0¢/kWh).

High electricity rates in California make energy-efficient appliances and heat pumps particularly valuable for reducing utility bills.

Energy Sources

California generates 53.6% of its electricity from renewable sources - 27% above the national average of 26.9%. Including nuclear, 62.2% of the state's power is carbon-free (EIA 2025).

Source Share
Natural gas 35.6%
Solar 27%
Hydroelectric 13.5%
Nuclear 8.5%
Wind 7.9%
Geothermal 5.2%

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 California

Nearby Water Quality Reports

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 95172. To look up the system serving a specific address, use the state SDWIS search tool.

Frequently Asked Questions

Is the tap water in 95172 safe to drink?

No EPA-registered public water system is mapped to ZIP 95172, 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 95172's water come from?

There is no community water system directly registered with the EPA for ZIP 95172. 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 95172, 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 95172 have lead in the water?

No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 95172. If you are concerned about lead, contact your water utility or have your tap water independently tested.

What is the radon risk in 95172?

ZIP code 95172 (Santa Clara County) falls in EPA Radon Zone 2, indicating moderate radon potential. Zone 2 areas have moderate radon potential, and the EPA recommends considering radon testing for homes in this area.

USGS reports that 5 of the top compounds applied across the surrounding county are flagged by the EPA for drinking-water monitoring - see the agricultural pesticide-use section

📊 EPA Safe Drinking Water · Updated March 2026 · View source →

California Water Quality Overview

Statewide grade: B (73/100)

California enforces some of the strictest drinking water standards in the nation, including limits on chromium-6 and 1,2,3-TCP that have no federal equivalent. The state enforces stricter limits than federal EPA minimums for 6 contaminants. 24 water systems in our data exceed these state-level limits while still passing federal standards. ZipCheckup analyzes lab results from 5,320 water systems across California, covering 27 contaminants from 5 data sources. The most frequently tested contaminants include Lead (Pb 90th %ile), NEtFOSAA, NMeFOSAA. Overall, California earns a water quality grade of B (average score: 73/100) across 2,630 ZIP codes. 55% of tested systems have at least one EPA violation on record. If you live in California, review the contaminant table above for your specific water system — state averages may not reflect local conditions.

5,320 systems tested
27 contaminants tracked
2,630 ZIP codes
Regulated at stricter state levels:
manganese 123tcp chromium6 fluoride perchlorate
California vs. federal limits →
📊 State Environmental Agency · Updated March 2026

Recommended Water Filters

Good to Have

Based on 2 contaminants.

Total Trihalomethanes Haloacetic Acids
Granular Activated Carbon (GAC, whole-house POE)
80-99% effective · NSF/ANSI 53
$400–$2000

Total Trihalomethanes detected at 76.96 ppb

Top picks: Aquasana AQ-5200 , Aquasana EQ-1000 Rhino (We may earn a commission)
Granular Activated Carbon (GAC, under-sink or whole-house)
60-80% effective · NSF/ANSI 53
$100–$600

Haloacetic Acids detected at 35.87 ppb

Top picks: Aquasana AQ-5200 , Aquasana EQ-1000 Rhino (We may earn a commission)

Get a detailed filter match based on your ZIP code's water data

Find the Right Filter for Your Water →

Recommendations are based on contaminants detected in the Consumer Confidence Report in our dataset. Individual results may vary. Look for filters with the certifications listed above. Product mentions are not endorsements.

Lead Pipe Replacement Funding for California

$28.6M
allocated in fiscal year 2025 for lead service line replacement
Up to $14.0M available as grants for disadvantaged communities (49% of allocation)

Key LCRI Deadlines

Now
Your water system must notify you if you have a lead service line
1
Oct 2027
Water systems must complete service line inventories
2
Oct 2034
All lead service lines must be replaced

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 California

2 active weather alerts in California. Severe weather can affect your water quality and home safety.

View alerts for California →

📊 NWS · Updated March 2026 · View source →
Environmental Hazards (9) HIGH
🏠

Flood Insurance Discount (FEMA CRS)

CRS Class
7
Moderate
SFHA Discount
10%
high-risk flood zones
Non-SFHA Discount
10%
moderate/low-risk zones

San Jose participates in FEMA's Community Rating System - residents in San Jose can save 10% on flood insurance premiums in high-risk zones.

How FEMA flood discount classes work

FEMA's Community Rating System rewards communities for flood management efforts. Lower class = better rating = bigger discount:

  • Class 1 - 45% SFHA discount (top rating, very rare)
  • Class 2-3 - 35-40% discount (excellent programs)
  • Class 4-5 - 25-30% discount (strong programs)
  • Class 6-7 - 15-20% discount (moderate programs)
  • Class 8-9 - 5-10% discount (basic programs)
  • Class 10 - 0% discount (entry level / no participation)
📊 FEMA CRS · Updated March 2026 · View source →

Air Quality for 95172

55
AQI
Moderate
Primary pollutant: PM2.5
Station: San Jose (0.9 mi away)
Health Recommendations

Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. Consider reducing prolonged outdoor exertion if you experience symptoms.

AQI Scale
050100150200300500
📊 EPA AirNow · Updated March 2026 · View source →

County-level hazard data for Santa Clara

These are county-level federal records for Santa Clara, the county that contains ZIP code 95172. They describe the whole county, not this ZIP code specifically, and are provided for regional context.

High-hazard dams 26, rated high-hazard-potential by the U.S. Army Corps of Engineers · 6 in poor or unsatisfactory condition
Large hail and damaging wind (2015-2024) 0 large-hail and 4 damaging-wind events recorded in the county
Flooding (2015-2024) 8 flash-flood and 108 riverine-flood events recorded in the county
Private-well arsenic (USGS estimate) About 2,392 county residents on private wells have water above the federal arsenic limit; private wells are outside the Safe Drinking Water Act
Landslide-prone terrain (county) The USGS maps 76.9% of the county's land as susceptible to landslides, with 4,152 documented landslides on record

Sources: U.S. Army Corps of Engineers National Inventory of Dams, NOAA Storm Events Database, EPA air-quality design values, EPA annual Air Quality Index by county, a USGS domestic-well arsenic model, and a USGS landslide-susceptibility model. All figures are county-level and do not reflect conditions at any single address.

Termite Risk for 95172

Very Heavy Termite Zone
WDI Inspection Requirement

Required for VA/FHA loans statewide; Section 1/Section 2 pest report standard in conventional sales. Sellers must disclose known termite activity

Typical Inspection Cost
$100 – $250
Based on California market rates
Consequence

VA/FHA loan will not close without clear NPMA-33 form; Section 1 findings may require treatment before close of escrow

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.
  • California falls in a very heavy termite infestation probability (TIP) zone. Subterranean termites are the primary concern, with Formosan subterranean termites also present in this region.
Reference: VA lender requirements; California Structural Pest Control Act (B&P Code 8500-8698); Section 1/Section 2 reporting

Source: USDA Forest Service Termite Infestation Probability (TIP) zones, VA/FHA lender requirements, California 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 95172

High Pest Pressure
Top Pest Threats in California

termites, rodents, cockroaches, bed bugs and mosquitoes

Typical Pest Inspection Cost
$100 – $250
Based on California market rates
Licensed Applicator Required
Yes
California pesticide regulations
⚠ CDC / EPA Disease Zone Alerts
  • West Nile activity zone
Real Estate Transaction Requirement

Required for VA loans in all states; Section 1/Section 2 pest report standard in conventional sales

Penalty for Unlicensed Application

Up to $5,000 per violation; criminal penalties for willful violations

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.
  • California's climate creates year-round pest pressure. Regular professional inspections and preventive treatment are strongly recommended.

Common Questions

Do I need a pest inspection before buying a home in California?
VA and FHA loans require a Wood Destroying Insect (WDI) inspection in all states. Required for VA loans in all states; Section 1/Section 2 pest report standard in conventional sales Even when not legally required, a professional pest inspection ($100–$250) can reveal hidden infestations that cost thousands to remediate.
Can I apply pesticides myself in California?
Homeowners can generally use over-the-counter pesticide products on their own property. However, restricted-use pesticides require a licensed applicator in California. Commercial pest control services must be licensed. Up to $5,000 per violation; criminal penalties for willful violations.
What are the most common pests in California?
The top pest threats in California include termites, rodents, cockroaches, bed bugs and mosquitoes. Pest activity varies by season and local conditions. As a high pest pressure state, year-round preventive treatment is recommended.
Legal Reference: California Structural Pest Control Act (B&P Code 8500-8698)

Source: CDC vector-borne disease surveillance, EPA pesticide regulation data, California 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

29
Moderate Smoke Risk
Wildfire smoke exposure risk score for 95172
Nearest Fire
21 mi
33 km to nearest recent wildfire
County Fires (5yr)
5
wildfires in county since 2021
Risk Level
Moderate
based on fire proximity & history
Air Quality
Seasonal
during fire season (Jun–Nov)
SMOKE RISK SCORE 29/100
0 - Minimal 100 - Highest Risk
This area has moderate wildfire smoke exposure risk. During fire season (June–November), air quality can deteriorate rapidly. Monitor conditions at EPA AirNow and the National Interagency Fire Center.

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

23.2
HIGH RISK
FEMA National Risk Index earthquake score for 95172
Risk Rating
Relatively High
FEMA earthquake hazard classification
Expected Annual Loss
$407.9M
estimated county-level annual loss (Very High)
Annual Frequency
0.010
expected damaging earthquakes per year
Structural Vulnerability
Moderate
based on housing age + seismic zone
EARTHQUAKE RISK SCORE 23.2/50
0 - Minimal 50 - Highest Risk
This area has relatively high earthquake risk. Seismic activity is a significant hazard in this region. Review your home's structural readiness, secure heavy items, and maintain an earthquake kit. Check real-time seismic activity at the USGS Earthquake Map.

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 95172

Very Low Risk
21/100
Mold Probability Score
Based on humidity, housing age, flood history & water infrastructure
Avg. Humidity
57%
annual relative humidity
Summer Humidity
47%
Jun–Aug average
Flood Claims
0
FEMA insurance claims
Seasonal Risk

Winter humidity (67%) remains elevated in this area. Condensation on cold surfaces creates mold-favorable conditions even in cooler months. Summer humidity averages 47%.

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

  • Keep indoor humidity below 50% using ventilation or a dehumidifier in moisture-prone areas (bathrooms, basements, laundry rooms).
  • 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 57% average humidity, a dehumidifier is the most effective way to reduce mold risk in 95172. 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

Low Risk
13
Respiratory Risk Score
Combined air quality, humidity & mold risk for 95172
Air Quality
4/40
EPA AQI index
Humidity
3/30
seasonal impact
Mold
6/30
housing + humidity
RISK SCORE 13/100
Low Moderate Severe
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%).

Superfund Sites & Soil Contamination Risk

57
High Proximity Risk
EPA Superfund NPL site proximity score for 95172
Nearest NPL Site
1.6 mi
2.5 km - Lorentz Barrel & Drum Co.
Sites Within 10 km
5
NPL sites within ~6.2 miles
Risk Level
High
based on proximity & site status
Sites Within 25 km
23
NPL sites within ~15.5 miles
SUPERFUND PROXIMITY SCORE 57/100
0 - No nearby sites 100 - Highest Risk

Nearest Superfund (NPL) Sites

Site Name Distance Status Listed
Lorentz Barrel & Drum Co.
San Jose, California
1.6 mi Construction Complete 10/04/1989
Intel Corp. (Santa Clara III)
Santa Clara, California
5.5 mi Deleted from NPL 06/10/1986
Synertek, Inc. (Building 1)
Santa Clara, California
5.7 mi Construction Complete 10/04/1989
Applied Materials
Santa Clara, California
5.9 mi Construction Complete 07/22/1987
Intel Magnetics
Santa Clara, California
6 mi Construction Complete 06/10/1986
Your area is near active Superfund cleanup sites. Contaminants from NPL sites can affect groundwater, soil, and air quality in surrounding communities. Check your home's water source and consider testing soil if you have a garden or well. View site details at the EPA Superfund Site Search.

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.

📊 EPA Superfund National Priorities List (NPL) · Updated March 2026 · View source →

Agricultural pesticide use in the surrounding county

USGS estimates how many kilograms of agricultural pesticides are applied each year in this ZIP code’s surrounding county, plus the five most-applied compounds. These are county-level use estimates, not a measurement of any pesticide in the tap water served to this ZIP code.

USGS county-level estimate
8.6k kg
estimated kilograms of pesticides applied each year across the surrounding county.

Top compounds by volume

The five compounds applied in the largest amounts across this county. Where the EPA sets a drinking-water reference limit (MCL) for a compound, that limit is shown for context - it is a regulatory reference, not a finding of any concentration in this ZIP code’s water.

  • CHLOROTHALONIL
    Fungicide · 2.7k kg/yr
    Moderate water concern
  • GLYPHOSATE
    Herbicide · 1.5k kg/yr · EPA drinking-water reference limit: 700 ppb
    Moderate water concern
  • MALATHION
    Insecticide · 1.4k kg/yr
    Moderate water concern
  • DIAZINON
    Insecticide · 963 kg/yr
    High water concern
  • METHOMYL
    Insecticide · 550 kg/yr
    Moderate water concern

5 of the top compounds are ones the EPA flags for drinking-water monitoring - see the drinking-water section above

What this means

  • These figures describe pesticide application across the surrounding county, not the drinking water at this address.
  • An EPA Maximum Contaminant Level (MCL) is a regulatory reference for how much of a compound is allowed in finished tap water - it is not a finding of contamination at this ZIP code.
  • Tested drinking-water results from the local water system - when reported - appear in the drinking-water section of this report.

Methodology: Annual county pesticide-use estimates are from the USGS Pesticide National Synthesis Project, mapped from county FIPS to ZIP code. EPA Maximum Contaminant Levels are reproduced from federal drinking-water regulations and are reference points only.

Informational only. County-level agricultural pesticide-use estimates are not a measurement of any pesticide in the drinking water served by this ZIP code, nor an assessment of health risk. Tested drinking-water results, when reported by the local water system, appear in the drinking-water section above.

📊 USGS Pesticide National Synthesis Project · Updated May 2026
Home & Infrastructure (2) OK

Power outages in Santa Clara

Electricity outages reported by utilities in Santa Clara and tracked by the U.S. Department of Energy's EAGLE-I program in 2024. These figures describe the county, not conditions at ZIP code 95172.

Hours of outages per customer (2024) 7.8 hours. A customer is a metered account, not a person.
Compared with other counties Higher than 38% of the 58 counties in California with data for this year.
Longest single day on record February 5, 2024, with 2,074,437 customer-hours of outages across the county.

County-level figures, not a measurement at this address. Based on reported 15-minute intervals: intervals reported with no value are excluded, never counted as zero. Counties and years without data are omitted rather than shown as zero. Source: DOE/ORNL EAGLE-I, licensed CC BY 4.0.

CO & Gas Safety Profile

10
Low Gas Risk
PHMSA gas distribution incident risk score for 95172
County Incidents
23
gas distribution incidents since 2004
Fatalities
0
no deaths reported
Latest Incident
2023
most recent reported
Risk Level
Low
based on incident history
RISK SCORE 10/100
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 →

Remodeling Permit Requirements in California

⚠ Strict Permit Enforcement
What Requires a Permit

Structural, electrical, plumbing, mechanical, HVAC, water heater, re-roofing, window replacement. Cosmetic-only work exempt.

Typical Permit Cost
$200 – $5000
Based on California fee schedules
Penalty for Non-Compliance

Fines up to $5,000 for first offense, retroactive permit at 2–10x normal fee, mandatory correction

Legal Reference: California Building Standards Code (Title 24, CCR); CBC §105.1

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 California, contact your local building department before starting any project that alters structure, electrical, plumbing, or mechanical systems.

Remodeling Permit Questions for 95172

What remodeling work requires a permit in California?

In California, 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 California?

Working without a required permit in California can result in Fines up to $5,000 for first offense, retroactive permit at 2–10x normal fee, mandatory correction. 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 California?

Remodeling permit fees in California typically range from $200 to $5000, 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 California 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

$3,380
estimated extra annual cost vs a median-risk US ZIP
Higher modeled annual risk-cost than 83% of US ZIP codes

How this ZIP compares

US median ZIP
$1,400
per year
CA median
$2,800
per year

Where the estimate comes from

Sea level rise$3,000
Wildfire$300
Underground storage tanks$80

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.

Fair market rent in this ZIP

These are HUD's Fair Market Rent figures for this ZIP, the payment-standard monthly rents HUD uses for housing assistance. They are a published benchmark, not a survey of what units actually rent for today.

HUD sets the fair market rent for a 2-bedroom home in this ZIP at $3,450 per month.

Monthly fair market rent by home size:

Studio (efficiency) $2,610/mo
1-bedroom $2,980/mo
2-bedroom $3,450/mo
3-bedroom $4,480/mo
4-bedroom $4,880/mo

HUD metro area: San Jose-Sunnyvale-Santa Clara, CA HUD Metro FMR Area.

Source: HUD Small Area Fair Market Rents, FY2025. A SAFMR is a HUD payment-standard figure, not a survey of actual market rents.

Tax Burden in California

State tax rates affect cost of ownership. Here's how California compares to national averages.

Income Tax
13.3%
top marginal rate
US avg: 5.3%
Sales Tax
8.8%
combined avg
US avg: 6.6%
Property Tax
0.74%
effective rate
US avg: 0.98%
Sales Tax Breakdown
State rate: 7.25%
Avg local add-on: 1.57%

Highest top marginal income tax rate in the nation

Source: Tax Foundation 2024. Income tax = top marginal rate. Sales tax = state + avg local. Property tax = effective rate on home value.

Energy Costs in California

Residential electricity rate: 35.25¢/kWh - 107% above the national average (national avg: 17.0¢/kWh · EIA, December 2025)

California Energy Mix

Solar 27% Wind 7.9% Hydro 13.5% Geothermal 5.2% Nuclear 8.5% Gas 35.6%
Renewable energy
53.6%
Clean energy (incl. nuclear)
62.2%

Source: EIA Form 923, 2025 data. Renewable = solar + wind + hydro + geothermal.

📊 EIA + Census ACS · Updated March 2026 · View source →

Home Energy Audit for 95172

IRA Energy Incentives Are Time-Limited

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.

Electricity Rate
35.3¢/kWh
California state average (107% above U.S. avg)
Est. Annual Energy Cost
$3,701
based on avg U.S. household (10,500 kWh/yr)
Renewable Energy
54%
of California's electricity from renewables
Potential Annual Savings
$185–$555
5–15% savings from energy audit

What a Home Energy Audit Covers

Thermal Envelope
  • Insulation levels in attic, walls, and basement
  • Air leaks around windows, doors, and ducts
  • Blower door test (measures total air leakage)
Equipment & Systems
  • HVAC efficiency and age assessment
  • Water heater type and condition
  • Lighting and appliance energy use
Safety Checks
  • Carbon monoxide and combustion safety
  • Moisture and ventilation assessment
  • Gas leak detection
Deliverables
  • Prioritized list of recommended upgrades
  • Estimated cost and savings for each upgrade
  • Rebate and tax credit eligibility report
Potential Savings from an Energy Audit
  • 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
Federal & State Incentives
IRA Tax Credits (IRC §25C) - up to $3,200/year
$2,000 - Heat pump / heat pump water heater
$1,600 - Insulation & air sealing
$600 - Windows & doors
$150 - Home energy audit itself
IRA Rebates (HEEHRA - income-qualified)
Up to $8,000 - Heat pump installation
Up to $1,600 - Insulation & air sealing
Up to $2,500 - Electrical panel upgrade
Up to $840 - Heat pump clothes dryer
30% tax credit for solar panels - extended through 2032 under the Inflation Reduction Act (IRC §25D). No annual cap for residential solar.

Under the Inflation Reduction Act. Income limits apply for HEEHRA rebates. Tax credits require tax liability. IRS details →

DOE Home Energy Audit Standards

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 95172

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 California, the average home spends approximately $3,701/year on electricity - a 15–25% reduction through audit-recommended upgrades could save $555–$925 annually.

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).

Recent Product Recalls

Recent CPSC recalls for plumbing and HVAC products that may affect homes in your area.

Madewell Double V-Neck Pullover and V-Neck Cardigan Sweaters
Madewell · 2026-07-16

Topyond Pool Drain Port with Cover
Unknown · 2026-07-02

AMASKY Nursing Pillows
Unknown · 2026-07-02

XW-A17 Electric Youth All-Terrain Vehicles (ATVs)
Yamazuki · 2026-06-25

View all recalls →

📊 CPSC · Updated March 2026 · View source →

Protect Your Home in San Jose

Based on local data for ZIP 95172, these services may benefit homeowners in your area.

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

Roofing Inspection & Repair

Active weather alerts in California increase the risk of roof damage from hail and high winds. A professional inspection can identify vulnerabilities.

Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500

Estimate Your Home Insurance Needs

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.

Frequently Asked Questions

Is the tap water in 95172 safe to drink?

No EPA-registered public water system is mapped to ZIP 95172, 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 95172's water come from?

There is no community water system directly registered with the EPA for ZIP 95172. 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 San Jose water compare to the national average?

San Jose's water quality ranks better than 79% of U.S. ZIP codes, and better than 70% within California.

How can I get my water tested in San Jose?

Since no EPA-registered water utility is mapped to ZIP 95172, 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 is the radon risk for 95172?

95172 falls in EPA Radon Zone 2 (Moderate risk), located in Santa Clara County. Zone 1 indicates the highest radon potential. Testing your home is recommended regardless of zone.

How to cite this page

APA ZipCheckup. (2026). San Jose, CA (95172): No EPA Water System. https://zipcheckup.com/report/95172/
BibTeX
@misc{zipcheckup-report-95172,
  author = {{ZipCheckup}},
  title  = {{San Jose, CA (95172): No EPA Water System}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/95172/}
}

Page version: August 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 95172

ZIP Code City, State Distance Grade Violations
95196 San Jose, CA <1 mi N/A 0
95113 San Jose, CA <1 mi N/A 1
95192 San Jose, CA <1 mi N/A 0
95103 San Jose, CA <1 mi N/A 0
95106 San Jose, CA <1 mi N/A 0
95108 San Jose, CA <1 mi N/A 0
95109 San Jose, CA <1 mi N/A 0
95115 San Jose, CA <1 mi N/A 0
95173 San Jose, CA <1 mi N/A 0
95141 San Jose, CA <1 mi N/A 0

Contaminants Detected in 95172

Learn more about the contaminants found in your water supply:

Overall safety breakdown

Home Safety Score →

Find the right water filter

Water Filter Matcher →

Compare filters, tests & services

Compare My Options →

Compare with another ZIP

Compare Tool →
Coverage: 9/17 risk factors Data sources →
Get alerts for 95172