Calhoun Water Association, MS
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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
Calhoun Water Association serves about 3,730 people through 1,413 service connections, which makes it a medium-sized system under EPA's size classes. It is under mixed public and private ownership and draws groundwater, in Jones County, Mississippi. EPA system ID: MS0340001; phone on file: 601-425-1093. They can tell you what your service line is made of and whether they pay to replace it.
Calhoun Water Association's lead record
Against the period ending 2021 (0.5 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Calhoun Water Association is 1 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 0.5 ppb |
| 2018 | 1 ppb |
| 2016 | 0.8 ppb |
How Calhoun Water Association compares
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. Calhoun Water Association's reported as 0 (not detected) sits at the 15th percentile in Mississippi and the 34th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
20 other systems share Jones County; 16 of them have a higher latest lead result than Calhoun Water Association. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Laurel | 18,100 | 1.4 ppb |
| Southwest Jones W/A-North | 6,690 | 2.4 ppb |
| Pleasant Ridge W/A | 5,808 | 1 ppb |
| City Of Ellisville | 4,600 | 8.2 ppb |
| J P Utility District | 3,839 | 1 ppb |
| Glade Waterworks Assn | 3,340 | 0.7 ppb |
| Moselle Water Association | 3,002 | 0.67 ppb |
| M & M Water Association | 3,000 | 0.7 ppb |
| Sharon Water Works | 2,769 | 2.3 ppb |
| Powers Water Association | 2,413 | 1 ppb |
Your move
Look up your address in Calhoun Water Association'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 Calhoun Water Association 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. What a 90th-percentile result does and does not tell you: how to read a lead result. A zero today does not rule out a jump later - the rules are tightening in 2027.