Henderson Nina 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.
Henderson Nina Water System Inc at a glance
Henderson Nina Water System Inc serves about 6,010 people through 1,845 service connections, which makes it a medium-sized system under EPA's size classes. It is privately owned and draws groundwater, in St. Martin Parish County, Louisiana. EPA system ID: LA1099006; phone on file: 337-228-7458. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is up 2.6 ppb from 2 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Henderson Nina Water System Inc is 4.6 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 4.6 ppb |
| 2022 | 2 ppb |
| 2019 | 2 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. Henderson Nina Water System Inc's 4.6 ppb sits at the 94th percentile in Louisiana and the 90th nationally (higher means more lead).
Nearby utilities
13 other systems share St. Martin Parish County; 1 of them has a higher latest lead result than Henderson Nina Water System Inc. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Village Of Parks Water System | 12,801 | 0 (not detected) |
| Cecilia Water Corporation | 12,420 | 3 ppb |
| Bayou Teche Water Works | 10,137 | 3 ppb |
| City Of Breaux Bridge Water System | 10,098 | 0 (not detected) |
| City Of St. Martinville Water System | 7,263 | 7 ppb |
| United Water System | 4,446 | 2 ppb |
| Town Of Arnaudville Water System | 3,957 | 0 (not detected) |
| St Martin Water Works District 3 - Cade | 3,249 | 0 (not detected) |
| St Martin Water District 4 - Catahoula | 3,000 | 1 ppb |
| St Martin Water And Sewer Commission 1 | 2,262 | 1 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Breaux Bridge, 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 Henderson Nina 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. Systems that went over once often dip back under; here is what that means.