Rivervine Subdivision, ID
Exceeded the action level in the past
Latest 90th-percentile lead: reported as 0 (not detected) (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. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Rivervine Subdivision at a glance
Rivervine Subdivision serves about 25 people through 10 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Ada County, Idaho. EPA system ID: ID4010245; phone on file: 208-283-0237. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2020 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Rivervine Subdivision is 16 ppb across 8 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 3 ppb |
| 2017 | 8 ppb |
| 2017 | 16 ppb over 15 |
| 2017 | 8 ppb |
| 2016 | 0 (not detected) |
How Rivervine Subdivision compares
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. Rivervine Subdivision's reported as 0 (not detected) sits at the 1st percentile in Idaho and the 0th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Ada County
52 other systems share Ada County; 28 of them have a higher latest lead result than Rivervine Subdivision. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Veolia Water Idaho | 264,978 | 2 ppb |
| Meridian Water Dept | 152,070 | 3.9 ppb |
| Kuna City Of | 32,038 | 0 (not detected) |
| Star Sewer And Water Dist Water System | 14,000 | 1 ppb |
| Garden City Water And Sewer System | 12,500 | 1 ppb |
| Capitol Water Corp | 9,000 | 3 ppb |
| Eagle, City Of (Western Zone) | 6,108 | 1 ppb |
| Eagle, City Of (Eastern Zone) | 3,702 | 4 ppb |
| Idoc Sbx Complex | 3,309 | 0 (not detected) |
| Idoc Idaho State Correctional Center | 2,204 | 0 (not detected) |
Next steps for Nampa, ID
Test your own tap with a certified lab first-draw sample; Nampa, 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 Rivervine Subdivision 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. More in what a past exceedance means today.