Quimby Water Supply, IA
Lead detected, under the action levels
Latest 90th-percentile lead: 0.5 ppb (monitoring period 2021-2023). 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.
About Quimby Water Supply
Quimby Water Supply serves about 249 people through 176 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 groundwater, in Cherokee County, Iowa. EPA system ID: IA1855066; phone on file: 712-445-2319. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Quimby Water Supply's lead record
That is down 4.1 ppb from 4.6 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Quimby Water Supply is 5 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0.5 ppb |
| 2020 | 4.6 ppb |
| 2017 | 5 ppb |
How Quimby Water Supply compares
Of the 1,066 Iowa systems with a lead result, the median latest reading is 1.4 ppb; 4 are over 15 ppb right now and 36 have gone over at some point. Quimby Water Supply's 0.5 ppb sits at the 33rd percentile in Iowa and the 43rd nationally (higher means more lead).
Nearby utilities
10 other systems share Cherokee County; 7 of them have a higher latest lead result than Quimby Water Supply. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Cherokee Water Supply - Plant 1 | 5,199 | 1.5 ppb |
| Cherokee Rws - Cherokee Subsystem | 3,315 | 2.2 ppb |
| Cherokee Rws- Mill Creek Subsystem | 1,451 | 11.6 ppb |
| Marcus Water Supply | 1,079 | 1.5 ppb |
| Aurelia Water Supply | 968 | 1.5 ppb |
| Cleghorn Water Supply | 247 | 0 (not detected) |
| Washta Water Supply | 209 | 1.2 ppb |
| Meriden Municipal Water Supply | 161 | 3 ppb |
| Larrabee Municipal Water Works | 125 | 0 (not detected) |
| Hilltop Village Mhc, Inc. | 78 | 0 (not detected) |
Next steps for Quimby, IA
Test your own tap with a certified lab first-draw sample; Quimby, IA 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 Quimby Water Supply 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.