St Tam Parish - Lake Hills Village, 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.
About St Tam Parish - Lake Hills Village
St Tam Parish - Lake Hills Village serves about 88 people through 22 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in St. Tammany Parish County, Louisiana. EPA system ID: LA1103128; phone on file: 985-893-1717. 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 2023 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for St Tam Parish - Lake Hills Village is 15 ppb across 9 monitoring periods, none of them over 15 ppb (2 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2023 | 1 ppb |
| 2020 | 2 ppb |
| 2020 | 0 (not detected) |
| 2019 | 15 ppb over 10 |
| 2018 | 3 ppb |
| 2017 | 3 ppb |
| 2017 | 3 ppb |
| 2016 | 11 ppb over 10 |
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. St Tam Parish - Lake Hills Village's reported as 0 (not detected) sits at the 3rd percentile in Louisiana and the 8th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
65 other systems share St. Tammany Parish County; 27 of them have a higher latest lead result than St Tam Parish - Lake Hills Village. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Slidell Water Supply | 35,547 | 0 (not detected) |
| St Tam Parish- Bedico -Faubourg-Coquille | 18,372 | 0 (not detected) |
| St Tam Parish - Briarwood Terrace | 17,536 | 2 ppb |
| City Of Covington Water Supply | 16,185 | 0 (not detected) |
| City Of Mandeville Water Supply | 13,000 | 1 ppb |
| Utilities Inc - North Park Water Supply | 11,298 | 0 (not detected) |
| Bayou Liberty Water Association | 10,791 | 0 (not detected) |
| St Tam Parish - Cross Gates Sd | 8,037 | 0 (not detected) |
| Lee Road Water Corporation | 7,665 | 2 ppb |
| Utilities Inc - Kingspoint Subdivision | 6,351 | 0 (not detected) |
Your move
Look up your address in St Tam Parish - Lake Hills Village'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 St Tam Parish - Lake Hills Village 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Small systems behave differently: why small systems go over more often.