News
Grantville water quality: 2025 CCR shows TTHM violation, city says compliance restored in October
GRANTVILLE — The city’s posted 2025 Consumer Confidence Report — the annual drinking-water quality report for system GA0770001 — says Grantville purchases all of its drinking water from Coweta County and that the city exceeded the Maximum Contaminant Level (MCL) for total trihalomethanes (TTHM) during 2025 because of water aging in the distribution system.
The report, dated in the document footer February 11, 2026, is the official city source for these figures. The Ledger is summarizing that PDF; we have not retested anyone’s tap.
Why it matters here
Every Grantville household on city water drinks and cooks with that purchased supply. Trihalomethanes are disinfection byproducts. The CCR’s required health language says some people who drink water containing trihalomethanes in excess of the MCL over many years may experience problems with the liver, kidneys or central nervous system and may have an increased risk of cancer — and that people who are immunocompromised, pregnant, elderly or caring for infants should ask a health provider about drinking the water.
Key findings from the 2025 CCR
| Item | What the city report says |
|---|---|
| Source | Purchased water from Coweta County |
| TTHM | Highest level detected 88.9 ppb (range 52.7–88.9); MCL 80 ppb → Violation: Y |
| HAA5 | Highest 44.1 ppb (range 21–44.1); MCL 60 → no violation |
| Microbiological | 49 routine + 3 repeat samples; 1 total-coliform positive, 0 E. coli positive |
| Lead / copper (sampled 8/20/2024) | Lead 90th percentile 0; copper 0.02 ppm; no lead/copper MCL violation listed in that table |
| City response | Aggressive flushing plus distribution changes to reduce aging; city says those steps brought the system back into compliance in October 2025 |
The CCR also points residents to Grantville’s service-line inventory map under the Lead and Copper Rule Revisions and to EPA lead guidance. City Water Department phone listed on the report: 770-583-2289.
Separate issue: boil-water advisories
Coweta Water’s public drinking-water information sheet explains that boil-water advisories are typically issued when pressure drops below 20 psi (often after a main break) and stay in place until lab samples clear. That is a different notice type from the annual CCR’s TTHM finding. Watch city and Coweta Water alerts for any new advisory.
What’s next
- Read the full 2025 CCR PDF for tables and definitions.
- Call City Hall / utilities at 770-583-2289 with questions about flushing, sampling or your service line.
- The Ledger will follow if the city or Georgia EPD posts a newer compliance notice.
Read more
This short brief is kept for the record. For the ongoing developing story, see the Water tracker.