Agency Water Works, IA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2023-2023). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Who runs the water here
Agency Water Works serves about 620 people through 276 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 Wapello County, Iowa. EPA system ID: IA9003006; phone on file: 641-937-5215. They can tell you what your service line is made of and whether they pay to replace it.
Agency Water Works's lead record
That is down 1.1 ppb from 1.1 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Agency Water Works is 1.1 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2022 | 1.1 ppb |
| 2021 | 1.1 ppb |
| 2018 | 0 (not detected) |
How Agency Water Works 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. Agency Water Works's reported as 0 (not detected) sits at the 20th percentile in Iowa and the 24th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
4 other systems share Wapello County; 3 of them have a higher latest lead result than Agency Water Works. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Ottumwa Water Works | 25,529 | 0.8 ppb |
| Eldon Water Supply | 927 | 0.9 ppb |
| Blakesburg Municipal Water Works | 305 | 2.6 ppb |
| Leisure Living Manf Home Community | 150 | 0 (not detected) |
Next steps for Agency, IA
Look up your address in Agency Water Works's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Agency Water Works 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. A zero today does not rule out a jump later - the rules are tightening in 2027.