Jefferson Co Rwd 15, KS
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2026-2026). 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.
Jefferson Co Rwd 15 at a glance
Jefferson Co Rwd 15 serves about 563 people through 225 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Jefferson County, Kansas. EPA system ID: KS2008721; phone on file: 785-231-8425. They can tell you what your service line is made of and whether they pay to replace it.
Jefferson Co Rwd 15's lead record
That is down 1.4 ppb from 1.4 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Jefferson Co Rwd 15 is 13.7 ppb across 20 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 1.4 ppb |
| 2025 | 2.6 ppb |
| 2024 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2023 | 1 ppb |
| 2023 | 0.7 ppb |
| 2022 | 0 (not detected) |
| 2022 | 13.7 ppb over 10 |
| 2021 | 3.8 ppb |
| 2021 | 0.8 ppb |
| 2020 | 1.4 ppb |
| 2019 | 1.9 ppb |
| 2019 | 2.7 ppb |
| 2018 | 0 (not detected) |
| 2018 | 1.1 ppb |
| 2017 | 4.8 ppb |
| 2017 | 0 (not detected) |
| 2016 | 0 (not detected) |
| 2016 | 0.6 ppb |
Where this result ranks
Of the 832 Kansas systems with a lead result, the median latest reading is 1.4 ppb; 2 are over 15 ppb right now and 35 have gone over at some point. Jefferson Co Rwd 15's reported as 0 (not detected) sits at the 16th percentile in Kansas and the 23rd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Jefferson County
17 other systems share Jefferson County; 14 of them have a higher latest lead result than Jefferson Co Rwd 15. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Jefferson Co Rwd 12 | 3,635 | 3.4 ppb |
| Jefferson Co Rwd 3 | 2,435 | 2.22 ppb |
| Jefferson Co Rwd 1 | 2,343 | 1.7 ppb |
| Jefferson Co Rwd 13 | 2,115 | 0.1 ppb |
| Jefferson Co Rwd 7 | 1,180 | 0 (not detected) |
| Valley Falls, City Of | 1,086 | 4.1 ppb |
| Oskaloosa, City Of | 1,086 | 0 (not detected) |
| Mclouth, City Of | 858 | 0 (not detected) |
| Perry, City Of | 858 | 3.52 ppb |
| Jefferson Co Rwd 2 | 642 | 2.9 ppb |
Your move
Look up your address in Jefferson Co Rwd 15'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 Jefferson Co Rwd 15 whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1440 ppb (copper action level 1,300 ppb).
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. A zero today does not rule out a jump later - the rules are tightening in 2027.