City Of Youngsville Water System, LA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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.
About City Of Youngsville Water System
City Of Youngsville Water System serves about 7,956 people through 2,652 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Lafayette Parish County, Louisiana. EPA system ID: LA1055035; phone on file: 337-856-4181. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for City Of Youngsville Water System is 2 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2022 | 2 ppb |
| 2019 | 0 (not detected) |
| 2016 | 0 (not detected) |
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. City Of Youngsville Water System's reported as 0 (not detected) sits at the 40th percentile in Louisiana and the 36th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Lafayette Parish County
33 other systems share Lafayette Parish County; 16 of them have a higher latest lead result than City Of Youngsville Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Lafayette Utilities Water System | 169,389 | 0 (not detected) |
| Lpwdn North Region | 16,833 | 0.5 ppb |
| Lpwd South | 15,132 | 0 (not detected) |
| City Of Carencro Water System | 11,301 | 0.63 ppb |
| City Of Youngsville Purchase Ws | 10,281 | 1 ppb |
| City Of Broussard Purchase Water System | 10,242 | 0.35 ppb |
| Milton Water System | 10,200 | 4 ppb |
| City Of Scott Water System | 9,696 | 0 (not detected) |
| City Of Broussard Water System | 5,151 | 0.39 ppb |
| City Of Broussard Hwy 90 Water System | 4,182 | 1 ppb |
Next steps for Youngsville, LA
Look up your address in City Of Youngsville 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 City Of Youngsville Water System 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. A zero today does not rule out a jump later - the rules are tightening in 2027.