La Casa Llc, LA
Lead detected, under the action levels
Latest 90th-percentile lead: 0.97 ppb (monitoring period 2025-2025). 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.
About La Casa Llc
La Casa Llc serves about 540 people through 135 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Tangipahoa Parish County, Louisiana. EPA system ID: LA1105042. Ask the utility on your bill for your address in their service line inventory.
La Casa Llc's lead record
Against the period ending 2021 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for La Casa Llc is 3 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.97 ppb |
| 2021 | 0 (not detected) |
| 2018 | 3 ppb |
| 2018 | 3 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. La Casa Llc's 0.97 ppb sits at the 53rd percentile in Louisiana and the 50th nationally (higher means more lead).
Nearby utilities
20 other systems share Tangipahoa Parish County; 10 of them have a higher latest lead result than La Casa Llc. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Tangipahoa Parish Water District | 75,873 | 1.6 ppb |
| City Of Hammond Water System | 21,135 | 2 ppb |
| City Of Pontchatoula Water System | 6,657 | 0 (not detected) |
| Town Of Amite Water System | 4,300 | 1 ppb |
| Utilities Inc - Hammond Heights | 4,281 | 1 ppb |
| Tangipahoa (Second Ward) Water District | 4,112 | 0 (not detected) |
| Town Of Independence Water System | 3,052 | 0 (not detected) |
| Town Of Kentwood Water System | 2,205 | 8 ppb |
| Town Of Roseland Water System | 1,521 | 0 (not detected) |
| Utilities Inc - Velma | 1,302 | 0 (not detected) |
Next steps for Ponchatoula, LA
Test your own tap with a certified lab first-draw sample; Ponchatoula, 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 La Casa Llc 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. The lead result guide covers how utilities pick the homes they sample. Size matters more than most people expect: small vs large water systems.