CITY REPORT TX

Sunnyvale, TX: 5 Violations - Home Safety 90/100

1 ZIP code · 3 water systems · Updated

ZipCheckup grade for Sunnyvale: A.

No federal data flags a major home-safety concern for this ZIP.

The water systems supplying Sunnyvale show a track record of above-average compliance with federal standards - consistently among the better performers in TX.

How Sunnyvale Compares

Sunnyvale90/100
Texas avg83/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
3
Water Systems
1
ZIPs with Violations
A · 90
Avg Safety Score
Zone 3
Radon Risk (Low)
$541K
Median Home Value
$1,700
Est. Remediation (0.3% of home value)

Key Facts for Sunnyvale Residents

  • Your city's water systems recorded 5 violations in the past 5 years.
  • Average lead level: 0.0022 mg/L.
  • Homes built before 1986: 15% - older plumbing may contain lead solder.
  • Estimated remediation: $1,700 per household.
  • CDC health risk index: 11.84.

Sunnyvale's Water Providers

Sunnyvale, TX is covered by 3 major water utilities out of 3 federally tracked systems, each managing its own pipes, treatment processes, and EPA filings. What a household gets from the tap depends on which provider's system serves that address.

Overview

We track home safety data for 1 ZIP code in Sunnyvale, Texas (population ~8,069), covering 3 community water systems serving approximately 409,681 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Sunnyvale: A (90/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Sunnyvale water systems draw from: Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0022 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 3 (Low Risk)

Top Contaminants

Contaminant Category Violations ZIPs Affected
Stage 1 DBP Rule Treatment Technique 6 1
Stage 2 DBP Rule Treatment Technique 2 1
Revised Total Coliform Rule Microbiological 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
75182 A 5 0 Town of Sunnyvale

All ZIP Codes in Sunnyvale

  • 75182 [A] - 5 violations

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Sunnyvale Community Health Snapshot

9.8%
Asthma (US: 9.8%)
12.5%
Diabetes (US: 10.4%)
17.1%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 9.8% ↓
Diabetes 12.5% ↑
Mental Health 17.1% ↑

Vertical line = national average. Above national · Below national

What's in Sunnyvale's Water?

Stage 1 DBP Rule 6 violations
Treatment Technique
Disinfection byproduct exposure risk
Stage 2 DBP Rule 2 violations
Treatment Technique
Disinfection byproduct exposure risk
Revised Total Coliform Rule 2 violations
Microbiological
Indicates possible bacterial contamination

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Sunnyvale Infrastructure Age

2004
Median Build Year
15%
Built Before 1986
4%
Built Before 1970
PEX or Copper
Likely Pipe Material

Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Compared to many older metro areas, Sunnyvale carries a relatively newer housing profile - the median build year of 2004 places most of the stock in the post-1986 era when lead solder was federally banned from new plumbing. That shift meaningfully reduces the baseline likelihood of lead leaching from copper joint solder. Homes from before 1986 do still exist in the mix, however, and individual testing remains the only way to confirm what a specific tap actually delivers.

2004
Median Year Built
15%
Pre-1986 (Lead Paint Risk)
4%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (4%) 1970–1986 (11%) Post-1986 (85%)

Most homes in Sunnyvale were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

How Remediation Costs Compare in Sunnyvale

In Sunnyvale, the equity impact of remediation is proportionally small - not the kind of financial commitment that rises to the level of a genuine planning constraint, but a minor share of what most properties here are worth.

Median Home Value
$540,500
Est. Remediation
$1,700
Remediation as % of home value 0.3%

Remediation costs in Sunnyvale are relatively low compared to home values. The $1,100–$2,600 estimated range is a small fraction of median property value. Home values are 137% above the Texas average.

Sunnyvale: Lead Risk & Vulnerable Populations

15%
Homes Built Before 1986
0.0022
mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

In Sunnyvale, the older-stock footprint runs at 15% - a contained slice - and aggregate utility readings land safely under the EPA action mark. That keeps lead off the local priority list, with a one-faucet draw remaining the only direct read on a specific address.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Sunnyvale: NFIP Claim Records and Water-Quality Context

8
Total FEMA Flood Claims
$12,904
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Sunnyvale contains 8 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $12,904. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$1,700</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

Frequently Asked Questions

What does the Home Safety Score mean for Sunnyvale, TX?
Sunnyvale has an average Home Safety Score of 90/100 (Grade A) under model 4.0.0. The score combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the PFAS MCL screen, EPA radon zone, and annual EPA AQI, and is published only when all required domains are observed. 5 EPA violations have been recorded. Check individual ZIP code reports for component details.
How many water violations does Sunnyvale have?
Sunnyvale water systems have a total of 5 EPA violations. Violations are tracked across 1 ZIP code.
Does Sunnyvale water have lead?
The average 90th-percentile lead level in Sunnyvale is 0.0022 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How does Sunnyvale compare to Texas average?
Sunnyvale has an average Home Safety Score of 90/100, which is above the Texas state average of 83/100 for the same model series.
How many water systems serve Sunnyvale?
Sunnyvale is served by 3 public water systems across 1 ZIP code, serving approximately 8,069 people.
How much does it cost to fix water issues in Sunnyvale?
Estimated remediation costs in Sunnyvale average $1,700 per household, ranging from $1,100 to $2,600. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesTexas → Sunnyvale, TX

How to cite this page

APA ZipCheckup. (2026). Sunnyvale, TX: 5 Violations - Home Safety 90/100. https://zipcheckup.com/cities/tx/sunnyvale/
BibTeX
@misc{zipcheckup-cities-tx-sunnyvale,
  author = {{ZipCheckup}},
  title  = {{Sunnyvale, TX: 5 Violations - Home Safety 90/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/tx/sunnyvale/}
}

Page version: August 2026.

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