Marsing, ID: 3 Health Violations — 79/100 (2026)
1 ZIP code · 3 water systems · Updated 2026-06-03
Drinking water tracked for Marsing by ID authorities posts above-average scores — the majority of systems are free from health-based exceedances and the city's grade sits above the state median.
How Marsing Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Marsing Water
- Your city's water systems recorded 21 violations in the past 5 years.
- Average lead level: 0.003 mg/L.
- Homes built before 1986: 42% — older plumbing may contain lead solder.
- Estimated remediation: $1,000 per household.
- CDC health risk index: 13.86 — above typical levels.
Who Supplies Your Water in Marsing
Water supply in Marsing, ID follows a divided structure: 3 utilities account for the largest share of residential service out of 3 total systems, each managing its own distribution network and EPA reporting. Because these systems operate independently, rate decisions and compliance outcomes are determined separately.
Overview
We track water quality and home safety data for 1 ZIP code in Marsing, Idaho, covering 3 community water systems serving approximately 3,298 people.
1 of 1 ZIP code (100%) have recorded EPA violations. 3 health-based violations documented.
Home Safety Score
Average Home Safety Score for Marsing: B (79/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Marsing water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0030 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes 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 |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 14 | 1 |
| Total Coliform | Microbiological | 8 | 1 |
| Barium | Inorganic | 6 | 1 |
| Revised Total Coliform Rule | Microbiological | 6 | 1 |
| Contaminant 0700 | Other | 4 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 83639 | B | 21 | 3 | City of Marsing |
All ZIP Codes in Marsing
- 83639 [B] — 21 violations ⚠
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
Updated daily.
Health Outcomes in Marsing
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Top Contaminants in Marsing Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Marsing
With 42% 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
What does a median build year of 1998 mean for water safety in Marsing? It means the housing stock straddles two key plumbing thresholds: the 1986 federal ban on lead solder in copper plumbing, and the pre-1970 era when lead pipes were commonly installed for service lines. A meaningful share of homes predates one or both of those cutoffs, creating varied risk levels across the city's housing inventory.
Most homes in Marsing 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.
Cost Context: What Remediation Means for Marsing Homeowners
Within the Marsing market, estimated remediation claims a small portion of typical property equity — the financial burden is proportionally low.
Remediation costs in Marsing are relatively low compared to home values. The $300–$2,300 estimated range is a small fraction of median property value. Home values are 19% above the Idaho average.
Lead Exposure Risk for Children in Marsing
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.
Wherever 42% of local housing was built before solder rules changed — as is the case in Marsing — a faucet-level sample closes the gap that aggregate utility data cannot.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Marsing, ID