Silex Pws, MO
Exceeded the action level in the past
Latest 90th-percentile lead: 2.09 ppb (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 result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Silex Pws at a glance
Silex Pws serves about 206 people through 98 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Lincoln County, Missouri. EPA system ID: MO6010902; phone on file: 636-278-0622. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
That is down 2.86 ppb from 4.95 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Silex Pws is 83.64 ppb across 9 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 2.09 ppb |
| 2023 | 4.95 ppb |
| 2023 | 4.95 ppb |
| 2023 | 83.64 ppb over 15 |
| 2022 | 1.44 ppb |
| 2020 | 1.44 ppb |
| 2020 | 1.44 ppb |
| 2017 | 1.24 ppb |
| 2016 | 3.26 ppb |
Against other Missouri systems
Of the 1,674 Missouri systems with a lead result, the median latest reading is 1.04 ppb; 2 are over 15 ppb right now and 74 have gone over at some point. Silex Pws's 2.09 ppb sits at the 72nd percentile in Missouri and the 74th nationally (higher means more lead).
Neighbouring systems
30 other systems share Lincoln County; 6 of them have a higher latest lead result than Silex Pws. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Troy Pws | 15,000 | 1.5 ppb |
| Lincoln County Pwsd 1 | 14,000 | 3.51 ppb |
| Moscow Mills Pws | 4,500 | 0 (not detected) |
| Elsberry Pws | 2,076 | 0 (not detected) |
| Winfield Pws | 1,489 | 1.29 ppb |
| Lincoln County Pwsd 2 | 1,005 | 5.24 ppb |
| Hawk Point Pws | 945 | 3.45 ppb |
| Quail Run Mhp | 897 | 0 (not detected) |
| Glen Meadows | 650 | 0 (not detected) |
| Majestic Lakes | 512 | 1.52 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Silex, MO 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 Silex Pws whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 2166 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. The lead result guide covers how utilities pick the homes they sample. Why an old exceedance still matters: over the limit before, under it now.