Tensas Water District Association, LA
Lead detected, under the action levels
Latest 90th-percentile lead: 2.1 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.
Tensas Water District Association at a glance
Tensas Water District Association serves about 3,843 people through 1,268 service connections, which makes it a medium-sized system under EPA's size classes. It is privately owned and draws surface water, in Tensas Parish County, Louisiana. EPA system ID: LA1107009; phone on file: 318-766-3285. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
Against the period ending 2022 (3 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Tensas Water District Association is 8 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2.1 ppb |
| 2022 | 3 ppb |
| 2019 | 8 ppb |
| 2016 | 1 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. Tensas Water District Association's 2.1 ppb sits at the 84th percentile in Louisiana and the 74th nationally (higher means more lead).
Nearby utilities
4 other systems share Tensas Parish County; 0 of them have a higher latest lead result than Tensas Water District Association. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Town Of St Joseph Water System | 1,332 | 2 ppb |
| Lake Bruin Water District #1 | 1,275 | 0 (not detected) |
| Town Of Newellton Water System | 1,100 | 2 ppb |
| Village Of Waterproof Water System | 786 | 2 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; St Joseph, 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 Tensas Water District Association 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Size matters more than most people expect: small vs large water systems.