West Tn State Penitentiary, TN
Lead detected, under the action levels
Latest 90th-percentile lead: 1.1 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.
West Tn State Penitentiary at a glance
West Tn State Penitentiary serves about 3,250 people through 27 service connections, which makes it a small system under EPA's size classes. It is owned by the state and draws groundwater, in Lauderdale County, Tennessee. EPA system ID: TN0000245; phone on file: 731-738-5044. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is down 1.2 ppb from 2.3 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for West Tn State Penitentiary is 8.54 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.1 ppb |
| 2022 | 2.3 ppb |
| 2019 | 1.4 ppb |
| 2016 | 8.54 ppb |
Where this result ranks
Of the 453 Tennessee systems with a lead result, the median latest reading is 1 ppb; 0 are over 15 ppb right now and 10 have gone over at some point. West Tn State Penitentiary's 1.1 ppb sits at the 78th percentile in Tennessee and the 57th nationally (higher means more lead).
Nearby utilities
5 other systems share Lauderdale County; 2 of them have a higher latest lead result than West Tn State Penitentiary. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Lauderdale Co Water System | 9,092 | 2.59 ppb |
| Ripley Water System | 8,030 | 1 ppb |
| Halls Water System | 5,287 | 0.8 ppb |
| Henning Water Department | 1,071 | 0.4 ppb |
| Gates Water Department | 670 | 1.4 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Henning, TN 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 West Tn State Penitentiary 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. The action level is dropping - the 10 ppb rule from 2027.