CITY REPORT WA

Carbonado, WA: 48 Violations - Home Safety Score unavailable

1 ZIP code · 4 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
4
Water Systems
1
ZIPs with Violations
Zone 3
Radon Risk (Low)
$436K
Median Home Value

Key Facts for Carbonado Residents

  • Your city's water systems recorded 48 violations in the past 5 years.
  • Average lead level: 0.0019 mg/L.
  • Homes built before 1986: 61% - older plumbing may contain lead solder.
  • CDC health risk index: 11.95.

Carbonado's Water Providers

Carbonado, WA is covered by 3 major water utilities out of 4 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 Carbonado, Washington (population ~712), covering 4 community water systems serving approximately 2,790 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.

Water Sources

Carbonado water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0019 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
Total Trihalomethanes (TTHM) Disinfection Byproducts 4 1
Haloacetic Acids (HAA5) Disinfection Byproducts 4 1
Consumer Confidence Report Rule Reporting 4 1
Lead Inorganic 2 1
Contaminant 2005 Other 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
98323 48 0 Sierra Water System

All ZIP Codes in Carbonado

Data Sources

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

Carbonado Community Health Snapshot

10.8%
Asthma (US: 9.8%)
10.6%
Diabetes (US: 10.4%)
18.1%
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 10.8% ↑
Diabetes 10.6% ↑
Mental Health 18.1% ↑

Vertical line = national average. Above national · Below national

What's in Carbonado's Water?

Total Trihalomethanes (TTHM) 4 violations
Disinfection Byproducts · EPA limit: 0.08 mg/L
Increased cancer risk with long-term exposure
Haloacetic Acids (HAA5) 4 violations
Disinfection Byproducts · EPA limit: 0.06 mg/L
Increased cancer risk with long-term exposure
Consumer Confidence Report Rule 4 violations
Reporting

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

Carbonado Infrastructure Age

1974
Median Build Year
61%
Built Before 1986
37%
Built Before 1970
Copper
Likely Pipe Material

With 61% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

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

Housing Age Profile

When a city's housing median build year is 1974, as in Carbonado, the implication for water quality research is straightforward: municipal-level data captures what leaves the treatment plant, but household plumbing from before 1986 determines what actually arrives at the tap. In cities where older housing predominates, that gap between system-level and household-level data is widest.

1974
Median Year Built
61%
Pre-1986 (Lead Paint Risk)
37%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (37%) 1970–1986 (24%) Post-1986 (39%)

Over half of homes in Carbonado were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Carbonado: Lead Risk & Vulnerable Populations

61%
Homes Built Before 1986
0.0019
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.

After the federal action removing lead-bearing solder from new plumbing took effect, building practice shifted - but 61% of the Carbonado inventory predates that line. With aggregate samples near or beyond 0.015 mg/L, an in-home check moves out of the optional column into the standard list.

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

Frequently Asked Questions

How many water violations does Carbonado have?
Carbonado water systems have a total of 48 EPA violations. Violations are tracked across 1 ZIP code.
Does Carbonado water have lead?
The average 90th-percentile lead level in Carbonado is 0.0019 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 many water systems serve Carbonado?
Carbonado is served by 4 public water systems across 1 ZIP code, serving approximately 712 people.
HomeCitiesWashington → Carbonado, WA

How to cite this page

APA ZipCheckup. (2026). Carbonado, WA: 48 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/wa/carbonado/
BibTeX
@misc{zipcheckup-cities-wa-carbonado,
  author = {{ZipCheckup}},
  title  = {{Carbonado, WA: 48 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/wa/carbonado/}
}

Page version: August 2026.

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