Cmu - Lake Caroline, MS
Lead detected, under the action levels
Latest 90th-percentile lead: 1.2 ppb (monitoring period 2022-2024). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
About Cmu - Lake Caroline
Cmu - Lake Caroline serves about 8,511 people through 3,224 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 Madison County, Mississippi. EPA system ID: MS0450034; phone on file: 601-859-2474. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is down 2.7 ppb from 3.9 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Cmu - Lake Caroline is 6.7 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 1.2 ppb |
| 2021 | 3.9 ppb |
| 2018 | 6.7 ppb |
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. Cmu - Lake Caroline's 1.2 ppb sits at the 60th percentile in Mississippi and the 59th nationally (higher means more lead).
Other water systems in Madison County
15 other systems share Madison County; 9 of them have a higher latest lead result than Cmu - Lake Caroline. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Bear Creek W/A-West | 26,677 | 1.6 ppb |
| City Of Ridgeland | 24,340 | 1.3 ppb |
| Bear Creek W/A -East | 18,770 | 3.2 ppb |
| City Of Canton | 16,785 | 1.7 ppb |
| City Of Madison | 16,136 | 1.1 ppb |
| East Madison Water Assn-West | 7,339 | 1.6 ppb |
| Prvwsd-Twin Harbor | 2,973 | 0.8 ppb |
| Town Of Flora #1 | 1,653 | 0.6 ppb |
| Prvwsd-Main Harbor | 1,497 | 1.3 ppb |
| West Madison Utl Dist | 1,287 | 1.04 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Canton, MS may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Cmu - Lake Caroline 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. Systems that went over once often dip back under; here is what that means.