Potwin, City Of, KS
Lead detected, under the action levels
Latest 90th-percentile lead: 2.5 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.
Potwin, City Of at a glance
Potwin, City Of serves about 424 people through 192 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 Butler County, Kansas. EPA system ID: KS2001518; phone on file: 620-752-3422. They can tell you what your service line is made of and whether they pay to replace it.
Potwin, City Of's lead record
That is up 2.5 ppb from 0 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Potwin, City Of is 2.5 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 2.5 ppb |
| 2021 | 0 (not detected) |
| 2018 | 1.7 ppb |
Against other Kansas systems
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. Potwin, City Of's 2.5 ppb sits at the 72nd percentile in Kansas and the 77th nationally (higher means more lead).
Nearby utilities
20 other systems share Butler County; 6 of them have a higher latest lead result than Potwin, City Of. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| El Dorado, City Of | 12,810 | 4.6 ppb |
| Augusta, City Of | 9,267 | 7.6 ppb |
| Butler Co Rwd 5 | 6,457 | 1.6 ppb |
| Rose Hill, City Of | 4,269 | 1.6 ppb |
| Butler Co Rwd 6 | 2,655 | 2.9 ppb |
| Butler Co Rwd 4 | 1,565 | 0 (not detected) |
| Douglass, City Of | 1,551 | 6.1 ppb |
| Butler Co Rwd 2 | 1,534 | 1.2 ppb |
| Butler Co Rwd 3 | 1,494 | 1.1 ppb |
| Butler Co Rwd 7 | 1,455 | 1.4 ppb |
Next steps for Potwin, KS
Test your own tap with a certified lab first-draw sample; Potwin, KS 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 Potwin, City Of 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. Size matters more than most people expect: small vs large water systems.