Marietta, NC Water Safety: 66/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Safe water is the norm across most of Marietta, NC — but documented violations push the city to the middle safety tier.
How Marietta Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Marietta Water
- Homes built before 1986: 77% — older plumbing may contain lead solder.
- CDC health risk index: 17.47 — above typical levels.
Who Supplies Your Water in Marietta
For most households in Marietta, NC, tap water comes from one provider — the utility that controls the local distribution system out of 1 tracked in federal record.
Overview
We track water quality and home safety data for 1 ZIP code in Marietta, North Carolina (population ~47), covering 1 community water system serving approximately 2,837 people region-wide.
No EPA violations recorded across any ZIP codes in Marietta — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Marietta: C (66/100)
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
Marietta water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Marietta
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 28362 | C | FAIRMONT, TOWN OF | 2,837 |
All ZIP Codes in Marietta
- 28362 [C]
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 Marietta
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
Housing & Infrastructure in Marietta
With 77% 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
Marietta's housing stock is predominantly older, with a median build year of 1962 that reflects decades of construction before federal plumbing standards were tightened. The 1986 ban on lead solder and the pre-1970 era of lead service lines are both relevant benchmarks here — a significant share of the residential inventory predates one or both of those cutoffs, creating an elevated baseline for plumbing-related lead risk that aggregate water quality data may not fully reflect at the household level.
Over half of homes in Marietta were built before 1986, when lead solder was banned. 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 Marietta
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.
Before the federal solder ban, lead solder was a routine plumbing material, and 77% of the Marietta inventory was built in that earlier era — a share large enough to move household-level reads onto the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Marietta
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. With 77% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Marietta, NC