South 641 Water District, KY
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2025-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
South 641 Water District at a glance
South 641 Water District serves about 1,160 people through 446 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Calloway County, Kentucky. EPA system ID: KY0180185; phone on file: 270-492-8857. Call that number and ask whether your address has a lead, galvanized or unknown service line.
South 641 Water District's lead record
The highest 90th-percentile result EPA holds for South 641 Water District is 0 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
Where this result ranks
Of the 367 Kentucky systems with a lead result, the median latest reading is 0 ppb; 0 are over 15 ppb right now and 4 have gone over at some point. South 641 Water District's reported as 0 (not detected) sits at the 7th percentile in Kentucky and the 28th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Calloway County
3 other systems share Calloway County; 1 of them has a higher latest lead result than South 641 Water District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Murray Water System | 26,302 | 0 (not detected) |
| Dexter Almo Heights Water District | 2,275 | 0 (not detected) |
| Stella Trailer Park | 74 | 7.5 ppb |
Next steps for Hazel, KY
Look up your address in South 641 Water District's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask South 641 Water District whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. The lead result guide covers how utilities pick the homes they sample. A zero today does not rule out a jump later - the rules are tightening in 2027.