City Of Louisville, MS
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2023-2025). 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.
Who runs the water here
City Of Louisville serves about 7,545 people through 3,823 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Winston County, Mississippi. EPA system ID: MS0800004; phone on file: 662-773-7147. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for City Of Louisville is 0 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 0 (not detected) |
Where this result ranks
Of the 973 Mississippi systems with a lead result, the median latest reading is 1 ppb; 9 are over 15 ppb right now and 44 have gone over at some point. City Of Louisville's reported as 0 (not detected) sits at the 16th percentile in Mississippi and the 36th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
10 other systems share Winston County; 7 of them have a higher latest lead result than City Of Louisville. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Highpoint Water Association #1 | 1,940 | 3.26 ppb |
| Town Of Noxapater | 1,713 | 0 (not detected) |
| Liberty-Plattsburg W/A #2 | 1,412 | 0 (not detected) |
| Bond Water Association #1 | 1,299 | 2.5 ppb |
| Ellison Ridge Water Assn | 1,287 | 0 (not detected) |
| Southeast Noxapater Water Assn | 1,188 | 11.8 ppb |
| Nanih-Waiya Water Association | 1,127 | 0.5 ppb |
| Pugh'S Mill Water Association | 924 | 5.8 ppb |
| Calvary Water Association | 900 | 0.7 ppb |
| City Of Louisville - Northeast | 780 | 2.3 ppb |
Next steps for Louisville, MS
Look up your address in City Of Louisville'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 City Of Louisville 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. Why sampled homes are the worst-case ones is in the guide to reading the number. A zero today does not rule out a jump later - the rules are tightening in 2027.