Limestone County Water & Sewer Auth., AL
Lead detected, under the action levels
Latest 90th-percentile lead: 0.92 ppb (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. 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.
Who runs the water here
Limestone County Water & Sewer Auth. serves about 90,900 people through 27,500 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Limestone County, Alabama. EPA system ID: AL0000833; phone on file: 256-233-6448. 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 (1.88 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Limestone County Water & Sewer Auth. is 5 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0.92 ppb |
| 2023 | 1.88 ppb |
| 2020 | 1.3 ppb |
| 2017 | 5 ppb |
Against other Alabama systems
Of the 542 Alabama systems with a lead result, the median latest reading is 0 ppb; 1 are over 15 ppb right now and 11 have gone over at some point. Limestone County Water & Sewer Auth.'s 0.92 ppb sits at the 62nd percentile in Alabama and the 49th nationally (higher means more lead).
Other water systems in Limestone County
2 other systems share Limestone County; 1 of them has a higher latest lead result than Limestone County Water & Sewer Auth.. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Athens Utilities | 43,431 | 0.57 ppb |
| Swan Creek Community | 327 | 6.9 ppb |
Next steps for Athens, AL
Test your own tap with a certified lab first-draw sample; Athens, AL 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 Limestone County Water & Sewer Auth. 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. Why sampled homes are the worst-case ones is in the guide to reading the number. The action level is dropping - the 10 ppb rule from 2027.