Town Of Gueydan Water System, LA
Lead detected, under the action levels
Latest 90th-percentile lead: 4 ppb (monitoring period 2026-2026). 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 Town Of Gueydan Water System
Town Of Gueydan Water System serves about 2,016 people through 672 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Vermilion Parish County, Louisiana. EPA system ID: LA1113006; phone on file: 337-536-9415. They can tell you what your service line is made of and whether they pay to replace it.
Town Of Gueydan Water System's lead record
Against the period ending 2025 (3 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Town Of Gueydan Water System is 4 ppb across 13 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 4 ppb |
| 2025 | 3 ppb |
| 2024 | 2 ppb |
| 2024 | 2 ppb |
| 2023 | 3 ppb |
| 2023 | 3 ppb |
| 2022 | 2 ppb |
| 2022 | 2 ppb |
| 2021 | 2 ppb |
| 2020 | 1 ppb |
| 2019 | 2 ppb |
| 2018 | 3 ppb |
| 2016 | 2 ppb |
Where this result ranks
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. Town Of Gueydan Water System's 4 ppb sits at the 93rd percentile in Louisiana and the 88th nationally (higher means more lead).
Neighbouring systems
9 other systems share Vermilion Parish County; 1 of them has a higher latest lead result than Town Of Gueydan Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Vermilion Waterworks District 1 | 24,132 | 2.3 ppb |
| City Of Abbeville Water System | 14,217 | 3 ppb |
| Magnolia Plantation Water System Inc | 8,769 | 2 ppb |
| Southeast Waterworks District 2 | 6,810 | 1.2 ppb |
| City Of Kaplan Water System | 4,340 | 0 (not detected) |
| Town Of Maurice Water System | 3,450 | 2.5 ppb |
| Town Of Erath Water System | 2,985 | 2 ppb |
| Town Of Delcambre Water System | 2,457 | 5.1 ppb |
| Pecan Island Ww District No 3 | 1,230 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Gueydan, 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 Town Of Gueydan Water System whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1500 ppb (copper action level 1,300 ppb).
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. The action level is dropping - the 10 ppb rule from 2027.