Washington Water Authority Wwa, AR
Lead detected, under the action levels
Latest 90th-percentile lead: 1 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.
Washington Water Authority Wwa at a glance
Washington Water Authority Wwa serves about 20,140 people through 8,056 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Benton,Washington County, Arkansas. EPA system ID: AR0000574; phone on file: 479-267-2111. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Washington Water Authority Wwa's lead record
Against the period ending 2022 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Washington Water Authority Wwa is 3 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1 ppb |
| 2022 | 1 ppb |
| 2019 | 3 ppb |
| 2016 | 3 ppb |
Against other Arkansas systems
Of the 190 Arkansas systems with a lead result, the median latest reading is 1 ppb; 15 are over 15 ppb right now and 19 have gone over at some point. Washington Water Authority Wwa's 1 ppb sits at the 50th percentile in Arkansas and the 55th nationally (higher means more lead).
Nearby utilities
2 other systems share Benton,Washington County; 0 of them have a higher latest lead result than Washington Water Authority Wwa. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Springdale Water Utilities | 100,795 | 1 ppb |
| Benton-Washington Regional Pwa | 30 | - |
Next steps for Farmington, AR
Test your own tap with a certified lab first-draw sample; Farmington, AR 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 Washington Water Authority Wwa 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. The lead result guide covers how utilities pick the homes they sample. Size matters more than most people expect: small vs large water systems.