Rockville Pws, MO
Lead detected, under the action levels
Latest 90th-percentile lead: 0.62 ppb (monitoring period 2022-2024). 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
Rockville Pws serves about 175 people through 122 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 Bates County, Missouri. EPA system ID: MO1010698; phone on file: 660-598-4265. They can tell you what your service line is made of and whether they pay to replace it.
Rockville Pws's lead record
That is down 10.58 ppb from 11.2 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Rockville Pws is 11.2 ppb across 8 monitoring periods, none of them over 15 ppb (3 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0.62 ppb |
| 2022 | 11.2 ppb over 10 |
| 2021 | 11.2 ppb over 10 |
| 2021 | 11.2 ppb over 10 |
| 2019 | 7.2 ppb |
| 2018 | 7.2 ppb |
| 2018 | 7.2 ppb |
| 2016 | 5.32 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. Rockville Pws's 0.62 ppb sits at the 44th percentile in Missouri and the 45th nationally (higher means more lead).
Neighbouring systems
11 other systems share Bates County; 5 of them have a higher latest lead result than Rockville Pws. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Butler Pws | 4,219 | 1.8 ppb |
| Bates County Pwsd 5 | 2,690 | 0 (not detected) |
| Bates County Pwsd 6 | 2,600 | 2.66 ppb |
| Adrian Pws | 1,635 | 0 (not detected) |
| Rich Hill Pws | 1,400 | 0 (not detected) |
| Bates County Pwsd 2 | 752 | 0 (not detected) |
| Bates County Pwsd 7 | 500 | 0.79 ppb |
| Bates County Pwsd 3 | 432 | 2.14 ppb |
| Hume Pws | 330 | 7.63 ppb |
| Bates County Pwsd 1 | 268 | 0 (not detected) |
Next steps for Rockville, MO
Test your own tap with a certified lab first-draw sample; Rockville, 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 Rockville Pws 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. The lead result guide covers how utilities pick the homes they sample. Systems that went over once often dip back under; here is what that means.