Cosmopolis, WA: 8 Violations - Home Safety Score unavailable
1 ZIP code · 5 water systems · Updated
Data: EPA SDWIS
Key Facts for Cosmopolis Residents
- Your city's water systems recorded 8 violations since 2021.
- Average of reported 90th-percentile lead results: 0.023 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average.
- Homes built before 1986: 74% - older plumbing may contain lead solder.
- Estimated remediation: $4,440 per household.
- Health risk index (ZipCheckup composite of CDC data): 14.51.
Cosmopolis's Water Providers
Sorted by reported population served, the top 3 of 5 public water systems mapped to Cosmopolis, WA appear below, each with its own federal compliance record.
Overview
We track home safety data for 1 ZIP code in Cosmopolis, Washington (population ~2,902), covering 5 community water systems serving approximately 36,836 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
Cosmopolis water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0230 mg/L (exceeds EPA action level) (EPA action level: 0.015 mg/L)
- 1 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 3.
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 |
|---|---|---|---|
| Consumer Confidence Rule | Reporting | 8 | 1 |
| Nitrate | Inorganic | 2 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 2 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 2 | 1 |
| Lead and Copper Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 98537 | — | 8 | 0 | City of Aberdeen |
All ZIP Codes in Cosmopolis
- 98537 - 8 violations recorded for mapped water systems
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Cosmopolis Community Health Snapshot
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
Vertical line = national average. ■ Above national · ■ Below national
What's in Cosmopolis's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Cosmopolis Infrastructure Age
With 74% 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
Ask the water utility whether your address in Cosmopolis has a lead service line; its inventory can answer what a median build year of 1960 cannot.
Over half of homes in Cosmopolis 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.
How Remediation Costs Compare in Cosmopolis
Set against the median home value, the remediation estimate for Cosmopolis lands in the middle of three tiers - above 1% but no higher than 2%.
Estimated remediation costs in Cosmopolis can be compared with local home values. The estimated $2,960–$5,920 range is a planning estimate; get a property-specific quote and check it against your budget. Home values are 36% below the Washington average.
Cosmopolis: Lead Risk & Vulnerable Populations
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.
Over 15 micrograms per liter: the mean of Cosmopolis's ZIP-level lead results. Older-than-1986 homes make up 74% of the stock.
1 ZIP code (100% of the city's ZIP records) is served by a water system whose 90th-percentile lead result exceeds the EPA action level of 0.015 mg/L.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Cosmopolis: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Cosmopolis contains 11 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $13,359. 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. The $4,440 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.
Deep Dive Reports
Detailed analysis for Cosmopolis, WA