Whitstran Heights Water Association, WA
Lead detected, under the action levels
Latest 90th-percentile lead: 4.5 ppb (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. 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.
Whitstran Heights Water Association at a glance
Whitstran Heights Water Association serves about 65 people through 21 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Benton County, Washington. EPA system ID: WA5396550. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
That is down 3.5 ppb from 8 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Whitstran Heights Water Association is 8 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 4.5 ppb |
| 2020 | 8 ppb |
| 2017 | 1 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. Whitstran Heights Water Association's 4.5 ppb sits at the 90th percentile in Washington and the 89th nationally (higher means more lead).
Neighbouring systems
42 other systems share Benton County; 0 of them have a higher latest lead result than Whitstran Heights Water Association. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Kennewick City Of | 118,164 | 0 (not detected) |
| Richland City Of | 106,499 | 2.4 ppb |
| West Richland City Of | 21,231 | 0 (not detected) |
| Prosser City Of | 8,030 | 0 (not detected) |
| Benton City Water | 5,626 | 0 (not detected) |
| Badger Mountain Irrigation District | 2,331 | 2.8 ppb |
| Summit View Water System | 1,869 | 0 (not detected) |
| Bc Water Co | 1,262 | 0 (not detected) |
| Community Sewer And Water District | 1,200 | 0 (not detected) |
| Oasis Water Corporation | 556 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Yakima, WA 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 Whitstran Heights Water Association 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. Systems that went over once often dip back under; here is what that means.