Water Quality in Marietta, SC: 1 Violation — Grade C
Grade C · Score 56/100 · 1 water system · Updated 2026-05-03
Marietta's water has moderate compliance issues. Residents in affected areas should consider filtration.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
Drinking water compliance data for Marietta, SC reflects 1 EPA violation — details in the grid below.
Water Quality by ZIP Code in Marietta
Water quality varies across Marietta's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 29661 | C | 56 | 1 | 1 | View report → |
Water Quality Overview
Marietta, South Carolina receives a water quality grade of C with an overall score of 56 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 1 water system serving Marietta have accumulated 1 EPA violations, including 1 health-based violation. These violations are tracked across 1 ZIP codes serving approximately 3,255 people.
What Grade C Means
A grade of C indicates moderate compliance issues. Marietta's water systems have some violations that warrant attention. While the water may still be safe for most people, residents in affected ZIP codes should consider additional testing or filtration.
Lead Levels
Lead testing data for Marietta is currently being collected. The EPA requires all community water systems to test for lead under the Lead and Copper Rule.
Radon Risk
Marietta is in EPA Radon Zone 1 (High risk). The EPA recommends all homes in Zone 1 areas be tested for radon. Radon is the second leading cause of lung cancer after smoking.
Water Systems Serving Marietta
Marietta is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 3,255 people across 1 ZIP codes.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
The EPA has taken 9 enforcement actions against water systems serving Marietta. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Marietta
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts
EPA Enforcement History
The EPA and state regulators have taken 9 enforcement actions against water systems serving Marietta. Recent actions:
| Date | Action Type |
|---|---|
| 2021-08-18 | State Order Extension |
| 2021-08-17 | State Filed Suit |
| 2021-08-17 | State Filed Motion |
| 2021-08-03 | State Formal Action |
| 2021-07-22 | State Filed Judgment |
| 2021-07-16 | State Formal Action |
| 2021-07-16 | State Informal Action |
| 2021-07-16 | State Informal Enforcement |
| 2021-07-16 | State Informal Action |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2021-08-18.
Marietta vs. Nearby South Carolina Cities
How Marietta's water quality compares to similar cities in South Carolina:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Marietta | C | 1 | 1 | 3,255 |
| Cleveland | D | 0 | 1 | 3,255 |
| Slater | D | 0 | 1 | 3,255 |
| Williston | A | 1 | 1 | 3,251 |
Common Questions About Marietta Water
These are the most common questions residents search for about water quality in Marietta, South Carolina:
Is Marietta water hard or soft? Water hardness varies by source. Marietta's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink Marietta tap water? Marietta's water receives a grade of C (56/100). There are 1 health-based violations — consider filtration.
What is the best water filter for Marietta? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Marietta vs. South Carolina Average
Understanding how Marietta compares to the broader South Carolina average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within Marietta.
ZIP Codes in Marietta
Marietta spans 1 ZIP code. The ZIP with the lowest water quality score is 29661. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.
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
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Updated daily.