CITY REPORT WA

Loomis, WA: High Radon Potential Area - Home Safety Score unavailable

1 ZIP code · 1 water system · Updated

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
0
ZIPs Linked to Systems with Violations
Zone 1
County Radon Potential (High)

Loomis Water: The Quick Version

  • Average of reported 90th-percentile lead results: 0.0032 mg/L.
  • Homes built before 1986: 38% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 14.12.

Water Systems Serving Loomis

Here the list of water systems for Loomis, WA has a single entry, while the figure of 1 count every system federal data connect to the area's ZIP codes.

Overview

We track home safety data for 1 ZIP code in Loomis, Washington (population ~353), covering 1 community water system serving approximately 3,256 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.

Water Sources

Loomis water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0032 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 1.

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

Areas with No Violations

ZIP Code Safety Score System Population
98827 — City of Oroville 3,256

All ZIP Codes in Loomis

Data Sources

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

CDC Health Data for Loomis

11.6%
Asthma (US: 9.8%)
13.3%
Diabetes (US: 10.4%)
17.2%
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 11.6% ↑
Diabetes 13.3% ↑
Mental Health 17.2% ↑

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

How Old Is Loomis's Housing Stock?

2007
Median Build Year
38%
Built Before 1986
27%
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

Buyers and renters in Loomis can ask a simple question of any home: was it built before 1986? The citywide median of 2007 will not answer it.

2007
Median Year Built
38%
Pre-1986 (lead solder era; lead paint banned 1978)
27%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (27%) 1970–1986 (11%) Post-1986 (62%)

Most homes in Loomis were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Protecting Children from Lead in Loomis

38%
Homes Built Before 1986
0.0032
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.

Frequently Asked Questions

Does Loomis water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Loomis is 0.0032 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 Loomis?
Our records map 1 water system to 1 ZIP code in Loomis. The related population figure in our data is approximately 353 people; it is not a count of people served citywide.
Home → Cities → Washington → Loomis, WA

How to cite this page

APA ZipCheckup. (2026). Loomis, WA: High Radon Potential Area - Home Safety Score unavailable. https://zipcheckup.com/cities/wa/loomis/
BibTeX
@misc{zipcheckup-cities-wa-loomis,
  author = {{ZipCheckup}},
  title  = {{Loomis, WA: High Radon Potential Area - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/wa/loomis/}
}

Page version: October 2026.

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