Mire Branch Water Corporation, LA
Lead detected, under the action levels
Latest 90th-percentile lead: 2 ppb (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. 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.
Who runs the water here
Mire Branch Water Corporation serves about 9,480 people through 3,160 service connections, which makes it a medium-sized system under EPA's size classes. It is privately owned and draws groundwater, in Acadia Parish County, Louisiana. EPA system ID: LA1001024; phone on file: 337-873-3823. 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 9 ppb from 11 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Mire Branch Water Corporation is 11 ppb across 4 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2 ppb |
| 2022 | 11 ppb over 10 |
| 2019 | 3 ppb |
| 2016 | 3 ppb |
Against other Louisiana systems
Of the 802 Louisiana systems with a lead result, the median latest reading is 0.72 ppb; 4 are over 15 ppb right now and 30 have gone over at some point. Mire Branch Water Corporation's 2 ppb sits at the 82nd percentile in Louisiana and the 73rd nationally (higher means more lead).
Nearby utilities
11 other systems share Acadia Parish County; 2 of them have a higher latest lead result than Mire Branch Water Corporation. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Lawco - Crowley Water System | 17,634 | 3 ppb |
| City Of Rayne Water System | 10,908 | 0 (not detected) |
| Egan Water Corporation | 5,337 | 0 (not detected) |
| South Rayne Water Corporation | 4,254 | 1 ppb |
| Town Of Church Point Water System | 4,176 | 1 ppb |
| North Of Crowley Water Corporation | 4,020 | 2 ppb |
| Egan Water Corporation No 2 | 2,835 | 0.63 ppb |
| Town Of Iota Water System | 1,842 | 2 ppb |
| Village Of Morse Water System | 1,065 | 0 (not detected) |
| Village Of Estherwood Water System | 891 | 4 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Church Point, LA 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 Mire Branch Water Corporation 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. Systems that went over once often dip back under; here is what that means.