CITY REPORT OR

Mosier, OR: 15 Violations - Home Safety Score unavailable

1 ZIP code · 1 water system · Updated

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
1
ZIPs with Violations
Zone 2
Radon Risk (Moderate)
$414K
Median Home Value
$400
Est. Remediation (0.1% of home value)

Key Facts for Mosier Residents

  • Your city's water systems recorded 15 violations in the past 5 years.
  • Average lead level: 0.0011 mg/L.
  • Homes built before 1986: 44% - older plumbing may contain lead solder.
  • Estimated remediation: $400 per household.
  • CDC health risk index: 14.1 - above typical levels.

Mosier's Water Providers

For most households in Mosier, OR, tap water comes from one provider - the utility that controls the local distribution system out of 1 tracked in federal record.

Overview

We track home safety data for 1 ZIP code in Mosier, Oregon (population ~1,877), covering 1 community water system serving approximately 13,010 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

Mosier water systems draw from: Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0011 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 2 (Moderate Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Stage 1 DBP Rule Treatment Technique 14 1
E. coli Microbiological 4 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 2 1
Haloacetic Acids (HAA5) Disinfection Byproducts 2 1
Gross Alpha Radionuclides 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
97040 15 0 City of the Dalles,

All ZIP Codes in Mosier

Data Sources

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

Mosier Community Health Snapshot

12.1%
Asthma (US: 9.8%)
13.3%
Diabetes (US: 10.4%)
17.9%
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 12.1% ↑
Diabetes 13.3% ↑
Mental Health 17.9% ↑

Vertical line = national average. Above national · Below national

What's in Mosier's Water?

Stage 1 DBP Rule 14 violations
Treatment Technique
Disinfection byproduct exposure risk
E. coli 4 violations
Microbiological
Gastrointestinal illness, potentially fatal
Total Trihalomethanes (TTHM) 2 violations
Disinfection Byproducts · EPA limit: 0.08 mg/L
Increased cancer risk with long-term exposure

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

Mosier Infrastructure Age

1997
Median Build Year
44%
Built Before 1986
26%
Built Before 1970
Copper
Likely Pipe Material

With 44% 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

Tap water lead levels are shaped by two factors: what the utility delivers, and what the household plumbing adds to it. Older homes contribute disproportionately to that second variable because lead solder was standard in copper plumbing before 1986, and lead pipes were common before 1970. In Mosier, where the median build year is 1997, a substantial share of the housing stock falls into these older categories. The bar chart above breaks out the pre-1970, 1970-to-1986, and post-1986 segments - the key ages for understanding where plumbing-era risk concentrates across the city.

1997
Median Year Built
44%
Pre-1986 (Lead Paint Risk)
26%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (26%) 1970–1986 (18%) Post-1986 (56%)

Most homes in Mosier 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 Mosier

Setting Mosier remediation figures against its property market, the resulting ratio sits comfortably in the low tier - a classification that reflects the kind of household financial position where most homeowners can identify documented issues, schedule the work, and absorb the cost without it registering as a significant budget disruption.

Median Home Value
$413,900
Est. Remediation
$400
Remediation as % of home value 0.1%

Remediation costs in Mosier are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 2% above the Oregon average.

Mosier: Lead Risk & Vulnerable Populations

44%
Homes Built Before 1986
0.0011
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.

If 44% of the Mosier inventory comes from before the federal ban on lead-bearing solder - and if utility samples sit at or near 0.015 mg/L - the gap between citywide averages and one specific faucet becomes a practical concern rather than a theoretical one. That is why one-home reads exist as a separate measurement. A certified filter through retailer networks addresses confirmed exposure where it appears in a household.

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 Mosier have?
Mosier water systems have a total of 15 EPA violations. Violations are tracked across 1 ZIP code.
Does Mosier water have lead?
The average 90th-percentile lead level in Mosier is 0.0011 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 Mosier?
Mosier is served by 1 public water system across 1 ZIP code, serving approximately 1,877 people.
How much does it cost to fix water issues in Mosier?
Estimated remediation costs in Mosier average $400 per household, ranging from $0 to $800. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesOregon → Mosier, OR

How to cite this page

APA ZipCheckup. (2026). Mosier, OR: 15 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/or/mosier/
BibTeX
@misc{zipcheckup-cities-or-mosier,
  author = {{ZipCheckup}},
  title  = {{Mosier, OR: 15 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/or/mosier/}
}

Page version: August 2026.

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