CITY REPORT CA HEALTH VIOLATIONS: 1

Nevada City, CA: 1 Violation - Home Safety Score unavailable

1 ZIP code · 4 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
4
Water Systems
1
ZIPs Linked to Systems with Violations
Zone 2
County Radon Potential (Moderate)
$603K
Median Home Value
$300
Est. Remediation (0.1% of home value)

Nevada City Water: The Quick Version

  • Water systems mapped to your city have 1 violation on record since 2021.
  • Average of reported 90th-percentile lead results: 0.0009 mg/L.
  • Homes built before 1986: 59% - older plumbing may contain lead solder.
  • Estimated remediation: $300 per household.
  • Health risk index (ZipCheckup composite of CDC data): 12.88.

Water Systems Serving Nevada City

3 systems shown for Nevada City, CA, from 4 on the federal list.

Overview

We track home safety data for 1 ZIP code in Nevada City, California (population ~18,017), covering 4 community water systems serving approximately 34,357 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. 1 health-based violation appear in the available health breakdown.

Water Sources

Nevada City water systems draw from: Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0009 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

1 of 1 ZIP records with known zones is in EPA Radon Zone 2.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Interim Enhanced Surface Water Treatment Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
95959 — 1 1 Nevada Id - E. George, Banner Mountain

All ZIP Codes in Nevada City

  • 95959 - 1 violation ⚠

Data Sources

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

CDC Health Data for Nevada City

10.2%
Asthma (US: 9.8%)
11.5%
Diabetes (US: 10.4%)
15.6%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 10.2% ↑
Diabetes 11.5% ↑
Mental Health 15.6% ↑

Vertical line = national average. ■ Above national · ■ Below national

Key Contaminants Detected in Nevada City

Interim Enhanced Surface Water Treatment Rule 2 violations
Treatment Technique

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

How Old Is Nevada City's Housing Stock?

1987
Median Build Year
59%
Built Before 1986
27%
Built Before 1970
Copper
Likely Pipe Material

With 59% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

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

Housing Age Profile

Median construction year in Nevada City: 1987, set against the 1986 federal lead limits for new plumbing.

1987
Median Year Built
59%
Pre-1986 (lead solder era; lead paint banned 1978)
27%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (27%) 1970–1986 (32%) Post-1986 (41%)

Over half of homes in Nevada City were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Nevada City: Remediation Cost in Perspective

How large is the remediation estimate next to home prices in Nevada City? Small in relative terms: it amounts to 1% of the median value or less, although the dollar figure below is still an estimate and actual costs vary by property and contractor.

Median Home Value
$603,200
Est. Remediation
$300
Remediation as % of home value 0.1%

Estimated remediation costs in Nevada City can be compared with local home values. The $150–$600 estimated range can be set against the median property value; actual costs vary by home. Home values are 18% below the California average.

Protecting Children from Lead in Nevada City

59%
Homes Built Before 1986
0.0009
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

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

Historical Flood-Claim Evidence for Nevada City

10
Total FEMA Flood Claims
$67,473
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Nevada City contains 10 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $67,473. 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 $300 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

How many violations are on record for water systems serving Nevada City?
EPA records list 1 EPA violation, including 1 health-based violation for Nevada City water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Nevada City water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Nevada City is 0.0009 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Nevada City?
Our records map 4 water systems to 1 ZIP code in Nevada City. The related population figure in our data is approximately 18,017 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Nevada City?
Estimated remediation cost per household in Nevada City: $300; modeled range $150 to $600. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Nevada City, CA: 1 Violation - Home Safety Score unavailable. https://zipcheckup.com/cities/ca/nevada-city/
BibTeX
@misc{zipcheckup-cities-ca-nevada-city,
  author = {{ZipCheckup}},
  title  = {{Nevada City, CA: 1 Violation - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ca/nevada-city/}
}

Page version: October 2026.

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