Greenbriar Prairie Basse Water System, LA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2024-2026). 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
Greenbriar Prairie Basse Water System serves about 1,656 people through 552 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in St. Landry Parish County, Louisiana. EPA system ID: LA1097032; phone on file: 337-662-6716. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Greenbriar Prairie Basse Water System's lead record
Against the period ending 2023 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Greenbriar Prairie Basse Water System is 5 ppb across 11 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2019 | 2 ppb |
| 2018 | 0 (not detected) |
| 2018 | 1 ppb |
| 2017 | 1 ppb |
| 2017 | 2 ppb |
| 2016 | 2 ppb |
| 2016 | 5 ppb |
How Greenbriar Prairie Basse Water System compares
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. Greenbriar Prairie Basse Water System's reported as 0 (not detected) sits at the 25th percentile in Louisiana and the 30th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
26 other systems share St. Landry Parish County; 13 of them have a higher latest lead result than Greenbriar Prairie Basse Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Opelousas Water System | 20,388 | 1 ppb |
| Lawco - Eunice Water System | 15,471 | 2 ppb |
| Town Of Leonville Water System | 9,552 | 2.5 ppb |
| Lewisburg Bellevue Water System | 8,325 | 0 (not detected) |
| Savoy Swords Water System Inc | 7,326 | 2 ppb |
| Plaisance Water System | 6,465 | 0 (not detected) |
| Prairie Ronde Water System Inc | 6,105 | 0 (not detected) |
| St Landry Water Works District 2 Rural | 4,761 | 0.92 ppb |
| Town Of Sunset Water System | 4,356 | 0.39 ppb |
| Town Of Port Barre Water System | 3,828 | 0.75 ppb |
Next steps for Sunset, LA
Look up your address in Greenbriar Prairie Basse Water System'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 Greenbriar Prairie Basse 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. A zero today does not rule out a jump later - the rules are tightening in 2027.