Anamosa State Penitentiary, IA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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.
Anamosa State Penitentiary at a glance
Anamosa State Penitentiary serves about 1,230 people through 50 service connections, which makes it a small system under EPA's size classes. It is owned by the state and draws groundwater, in Jones County, Iowa. EPA system ID: IA5300947; phone on file: 319-462-3504. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is down 2.1 ppb from 2.1 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Anamosa State Penitentiary is 2.1 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 2.1 ppb |
| 2018 | 1.3 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. Anamosa State Penitentiary's reported as 0 (not detected) sits at the 25th percentile in Iowa and the 28th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
10 other systems share Jones County; 7 of them have a higher latest lead result than Anamosa State Penitentiary. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Anamosa Municipal Water Supply | 4,457 | 1 ppb |
| Monticello Water Supply | 4,040 | 3 ppb |
| Olin Water Supply | 651 | 3.1 ppb |
| Wyoming Water System | 523 | 2.4 ppb |
| Oxford Junction Water Supply | 424 | 0.9 ppb |
| Martelle Water Works | 249 | 0 (not detected) |
| Onslow Water Supply | 201 | 0.6 ppb |
| Center Junction (Eiruss) | 100 | 0 (not detected) |
| Morley Municipal Water Supply | 98 | 0 (not detected) |
| Bacon Addition | 81 | 2 ppb |
Next steps for Anamosa, IA
Look up your address in Anamosa State Penitentiary'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 Anamosa State Penitentiary 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. Small systems behave differently: why small systems go over more often.