North Desoto Water System, LA
Lead detected, under the action levels
Latest 90th-percentile lead: 1 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.
North Desoto Water System at a glance
North Desoto Water System serves about 7,608 people through 2,536 service connections, which makes it a medium-sized system under EPA's size classes. It is privately owned and draws groundwater, in De Soto Parish County, Louisiana. EPA system ID: LA1031011; phone on file: 318-294-1331. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2022 (2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for North Desoto Water System is 2 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1 ppb |
| 2022 | 2 ppb |
| 2019 | 2 ppb |
| 2016 | 2 ppb |
How North Desoto Water System compares
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. North Desoto Water System's 1 ppb sits at the 64th percentile in Louisiana and the 55th nationally (higher means more lead).
Other water systems in De Soto Parish County
8 other systems share De Soto Parish County; 2 of them have a higher latest lead result than North Desoto Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Mansfield Water System | 7,512 | 1 ppb |
| Desoto Parish Water Works District 1 | 7,173 | 2 ppb |
| Keatchie Water System | 4,446 | 1 ppb |
| Town Of Logansport Water System | 2,448 | 0.44 ppb |
| East Desoto Water System | 1,455 | 0 (not detected) |
| Rambin-Wallace Water System | 1,161 | 1.6 ppb |
| South Desoto Water System | 963 | 0 (not detected) |
| Village Of South Mansfield Water System | 933 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Stonewall, 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 North Desoto 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. The lead result guide covers how utilities pick the homes they sample. Size matters more than most people expect: small vs large water systems.