New Plymouth City Of, ID
Lead detected, under the action levels
Latest 90th-percentile lead: 2 ppb (monitoring period 2023-2025). 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 New Plymouth City Of
New Plymouth City Of serves about 1,600 people through 758 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 Payette County, Idaho. EPA system ID: ID3380008; phone on file: 208-278-5338. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
That is up 2 ppb from 0 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for New Plymouth City Of is 2 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2 ppb |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 0 (not detected) |
Where this result ranks
Of the 763 Idaho systems with a lead result, the median latest reading is 1 ppb; 3 are over 15 ppb right now and 46 have gone over at some point. New Plymouth City Of's 2 ppb sits at the 73rd percentile in Idaho and the 72nd nationally (higher means more lead).
Nearby utilities
6 other systems share Payette County; 3 of them have a higher latest lead result than New Plymouth City Of. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Payette City Of | 8,127 | 2 ppb |
| Fruitland City Of | 7,458 | 5 ppb |
| Idaho West Estates | 98 | 5.3 ppb |
| Loma Linda Water Corp | 70 | 4 ppb |
| Decker Addition | 55 | 1 ppb |
| Lazy River Mobile Home Park 1 | 41 | 1 ppb |
Your move
Test your own tap with a certified lab first-draw sample; New Plymouth, ID 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 New Plymouth 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.