Kanawha Water Supply, IA
Lead detected, under the action levels
Latest 90th-percentile lead: 2.53 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 Kanawha Water Supply
Kanawha Water Supply serves about 658 people through 325 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 Hancock County, Iowa. EPA system ID: IA4150014; phone on file: 515-825-7711. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is up 1.53 ppb from 1 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Kanawha Water Supply is 2.53 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 2.53 ppb |
| 2020 | 1 ppb |
| 2017 | 2 ppb |
Where this result ranks
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. Kanawha Water Supply's 2.53 ppb sits at the 72nd percentile in Iowa and the 78th nationally (higher means more lead).
Neighbouring systems
7 other systems share Hancock County; 3 of them have a higher latest lead result than Kanawha Water Supply. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Garner Water Works | 3,065 | 2 ppb |
| Britt Water Works | 2,064 | 3 ppb |
| Klemme Water Works | 441 | 0 (not detected) |
| Corwith Water Supply | 266 | 2 ppb |
| Crystal Lake Water Supply | 255 | 0 (not detected) |
| Woden Water Supply | 188 | 4 ppb |
| Goodell Water Supply | 140 | 3 ppb |
Next steps for Kanawha, IA
Test your own tap with a certified lab first-draw sample; Kanawha, 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 Kanawha 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. Size matters more than most people expect: small vs large water systems.