CITY REPORT WA

Oroville, WA Water - 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)
$251K
Median Home Value

What You Should Know About Oroville Water

  • Average of reported 90th-percentile lead results: 0.0032 mg/L.
  • Homes built before 1986: 55% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 14.12.

Who Supplies Your Water in Oroville

Because water system records on this page are matched to Oroville, WA through ZIP codes rather than street addresses, the single system in the list below reflects that matching, while federal data connect 1 to the area overall. Anyone unsure which utility supplies a home can check the water bill or contact the utility directly.

Overview

We track home safety data for 1 ZIP code in Oroville, Washington, covering 1 community water system serving approximately 4,814 people. 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

Oroville 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
98844 — City of Oroville 3,256

All ZIP Codes in Oroville

Data Sources

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

Health Outcomes in Oroville

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

Housing & Infrastructure in Oroville

1988
Median Build Year
55%
Built Before 1986
31%
Built Before 1970
Copper
Likely Pipe Material

With 55% 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

Pre-1986 homes make up a large part of Oroville's housing; median build year 1988.

1988
Median Year Built
55%
Pre-1986 (lead solder era; lead paint banned 1978)
31%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (31%) 1970–1986 (24%) Post-1986 (45%)

Over half of homes in Oroville 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.

Lead Exposure Risk for Children in Oroville

55%
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.

Historical NFIP Claim Context in Oroville

26
Total FEMA Flood Claims
$9,714
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Oroville contains 26 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $9,714. Among ZIP codes with claim records, 0% 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.

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

Does Oroville water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Oroville 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 Oroville?
Our records map 1 water system to 1 ZIP code in Oroville. The related population figure in our data is approximately 4,814 people; it is not a count of people served citywide.
Home → Cities → Washington → Oroville, WA

How to cite this page

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

Page version: October 2026.

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