Vantage Water System, WA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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.
Vantage Water System at a glance
Vantage Water System serves about 405 people through 130 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Kittitas County, Washington. EPA system ID: WA5391250. Ask the utility on your bill for your address in their service line inventory.
Vantage Water System's lead record
That is down 1.5 ppb from 1.5 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Vantage Water System is 3.5 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 1.5 ppb |
| 2018 | 3.5 ppb |
Where this result ranks
Of the 2,218 Washington systems with a lead result, the median latest reading is 1 ppb; 18 are over 15 ppb right now and 62 have gone over at some point. Vantage Water System's reported as 0 (not detected) sits at the 26th percentile in Washington and the 21st nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
36 other systems share Kittitas County; 10 of them have a higher latest lead result than Vantage Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Ellensburg Water Dept | 20,900 | 1.5 ppb |
| Suncadia Resort | 2,640 | 13 ppb |
| Kittitas City Of | 2,247 | 1 ppb |
| Cle Elum Water Department | 2,213 | 0 (not detected) |
| Roslyn City Of | 2,099 | 0 (not detected) |
| Kittitas County Water District #5 | 700 | 0 (not detected) |
| South Cle Elum Water Dept | 541 | 0 (not detected) |
| Kittitas County Water District #4 | 510 | 0 (not detected) |
| Kittitas County Water District #7 | 463 | 0 (not detected) |
| Easton Water District | 362 | 0 (not detected) |
Next steps for Vantage, WA
Look up your address in Vantage Water System'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 Vantage Water System 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.