West Winn Water System, Inc, LA
Lead detected, under the action levels
Latest 90th-percentile lead: 4.6 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.
West Winn Water System, Inc at a glance
West Winn Water System, Inc serves about 1,965 people through 655 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Winn Parish County, Louisiana. EPA system ID: LA1127011; phone on file: 318-727-9278. Call that number and ask whether your address has a lead, galvanized or unknown service line.
West Winn Water System, Inc's lead record
That is up 4.6 ppb from 0 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for West Winn Water System, Inc is 4.6 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 4.6 ppb |
| 2022 | 0 (not detected) |
| 2019 | 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. West Winn Water System, Inc's 4.6 ppb sits at the 94th percentile in Louisiana and the 90th nationally (higher means more lead).
Nearby utilities
11 other systems share Winn Parish County; 2 of them have a higher latest lead result than West Winn Water System, Inc. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Winnfield Water System | 7,194 | 1 ppb |
| Tannehill Water System | 1,932 | 3 ppb |
| Village Of Atlanta Water Supply | 900 | 6 ppb |
| Pleasant Hills-Crossroads Water Systems | 840 | 1.4 ppb |
| Backwood Village Water System | 783 | 1 ppb |
| Village Of Dodson Water System | 714 | 1 ppb |
| Hudson Gaars Mill Water System | 660 | 1 ppb |
| Village Of Sikes Water System | 639 | 0 (not detected) |
| Village Of Calvin Water System | 591 | 6 ppb |
| Joyce Water Supply | 474 | 0.73 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Winnfield, 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 West Winn Water System, Inc 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. The action level is dropping - the 10 ppb rule from 2027.