Copiah W/A - Bayou Pierre #1, MS
Exceeded the action level in the past
Latest 90th-percentile lead: 0.8 ppb (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 result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Copiah W/A - Bayou Pierre #1 at a glance
Copiah W/A - Bayou Pierre #1 serves about 1,246 people through 472 service connections, which makes it a small system under EPA's size classes. It is under mixed public and private ownership and draws groundwater, in Copiah County, Mississippi. EPA system ID: MS0150001; phone on file: 601-892-3738. They can tell you what your service line is made of and whether they pay to replace it.
Copiah W/A - Bayou Pierre #1's lead record
Against the period ending 2024 (0.6 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Copiah W/A - Bayou Pierre #1 is 33.3 ppb across 7 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.8 ppb |
| 2024 | 0.6 ppb |
| 2023 | 1.4 ppb |
| 2022 | 2.8 ppb |
| 2022 | 3.5 ppb |
| 2021 | 33.3 ppb over 15 |
| 2018 | 2.1 ppb |
Against other Mississippi systems
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. Copiah W/A - Bayou Pierre #1's 0.8 ppb sits at the 39th percentile in Mississippi and the 48th nationally (higher means more lead).
Other water systems in Copiah County
10 other systems share Copiah County; 1 of them has a higher latest lead result than Copiah W/A - Bayou Pierre #1. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Crystal Springs Water Service | 5,961 | 0 (not detected) |
| Copiah-New Zion Water Assn,Inc | 3,791 | 1.8 ppb |
| Town Of Hazlehurst | 3,600 | 0.5 ppb |
| Northeast Copiah Water Assn | 3,020 | 0 (not detected) |
| Copiah W/A - Hazlehurst | 2,574 | 0 (not detected) |
| Town Of Wesson | 1,891 | 0.5 ppb |
| Copiah W/A - Gallman | 1,566 | 0 (not detected) |
| Harmony Ridge Water Assn | 1,380 | 0.5 ppb |
| Town Of Georgetown | 465 | 0 (not detected) |
| Copiah W/A - Bayou Pierre #2 | 430 | 0 (not detected) |
Next steps for Gallman, MS
Test your own tap with a certified lab first-draw sample; Gallman, 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 Copiah W/A - Bayou Pierre #1 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. More in what a past exceedance means today.