Greenbrier Waterworks, AR
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 Greenbrier Waterworks
Greenbrier Waterworks serves about 12,938 people through 5,175 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 Faulkner County, Arkansas. EPA system ID: AR0000191; phone on file: 501-581-1099. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Greenbrier Waterworks'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 Greenbrier Waterworks is 5 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2 ppb |
| 2022 | 1 ppb |
| 2020 | 3 ppb |
| 2016 | 5 ppb |
Where this result ranks
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. Greenbrier Waterworks's 2 ppb sits at the 73rd percentile in Arkansas and the 73rd nationally (higher means more lead).
Other water systems in Faulkner County
6 other systems share Faulkner County; 1 of them has a higher latest lead result than Greenbrier Waterworks. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Conway Water System | 65,233 | 1 ppb |
| Vilonia Waterworks | 24,690 | 2.5 ppb |
| Mayflower Waterworks | 7,390 | 1 ppb |
| Wooster Waterworks | 5,000 | 1 ppb |
| Beaverfork Pwa | 4,220 | 1 ppb |
| Guy Waterworks | 2,438 | - |
Your move
Test your own tap with a certified lab first-draw sample; Greenbrier, 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 Greenbrier Waterworks 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.