Mississippi County Pwsd 1, MO
Lead detected, under the action levels
Latest 90th-percentile lead: 5.94 ppb (monitoring period 2020-2022). 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.
Mississippi County Pwsd 1 at a glance
Mississippi County Pwsd 1 serves about 3,000 people through 1,072 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 Mississippi County, Missouri. EPA system ID: MO4021178; phone on file: 573-683-3568. 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 2021 (5.94 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Mississippi County Pwsd 1 is 5.94 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2022 | 5.94 ppb |
| 2021 | 5.94 ppb |
| 2021 | 5.94 ppb |
| 2019 | 2.03 ppb |
| 2018 | 2.03 ppb |
| 2018 | 2.03 ppb |
| 2016 | 3.36 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. Mississippi County Pwsd 1's 5.94 ppb sits at the 94th percentile in Missouri and the 93rd nationally (higher means more lead).
Neighbouring systems
5 other systems share Mississippi County; 0 of them have a higher latest lead result than Mississippi County Pwsd 1. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Charleston Pws | 5,900 | 2.61 ppb |
| East Prairie Pws | 2,696 | 4.32 ppb |
| Bertrand Pws | 733 | 5.36 ppb |
| Wyatt Pws | 319 | 0 (not detected) |
| Anniston Pws | 175 | 0.99 ppb |
Next steps for Anniston, MO
Test your own tap with a certified lab first-draw sample; Anniston, 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 Mississippi County Pwsd 1 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.