Waterworks District 7, LA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2022-2024). 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.
Waterworks District 7 at a glance
Waterworks District 7 serves about 5,889 people through 1,963 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 Caddo Parish County, Louisiana. EPA system ID: LA1017052; phone on file: 318-925-6880. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Waterworks District 7's lead record
Against the period ending 2021 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Waterworks District 7 is 1 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 1 ppb |
| 2018 | 1 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. Waterworks District 7's reported as 0 (not detected) sits at the 38th percentile in Louisiana and the 35th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
27 other systems share Caddo Parish County; 14 of them have a higher latest lead result than Waterworks District 7. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Shreveport Water System | 192,378 | 0.92 ppb |
| Town Of Blanchard Water System | 16,488 | 0 (not detected) |
| Town Of Greenwood Water System | 5,205 | 29 ppb |
| Pinehill Waterworks District | 4,926 | 6 ppb |
| Town Of Vivian Water System | 4,050 | 1.2 ppb |
| Town Of Oil City Water System | 2,169 | 1 ppb |
| Lakeview Water System | 2,025 | 11.3 ppb |
| Village Of Mooringsport Water System | 999 | 9 ppb |
| Village Of Hosston Water System | 729 | 2.2 ppb |
| Deepwoods Utilities Inc | 657 | 0 (not detected) |
What to do in your house
Look up your address in Waterworks District 7'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 Waterworks District 7 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. Small systems behave differently: why small systems go over more often.