Hamburg Waterworks, AR
Lead detected, under the action levels
Latest 90th-percentile lead: 7 ppb (monitoring period 2026-2028). 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.
Who runs the water here
Hamburg Waterworks serves about 5,600 people through 2,127 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Ashley County, Arkansas. EPA system ID: AR0000015; phone on file: 870-853-5279. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is up 5 ppb from 2 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Hamburg Waterworks is 7 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2028 | 7 ppb |
| 2025 | 2 ppb |
| 2022 | 2 ppb |
| 2019 | 3 ppb |
| 2016 | 3 ppb |
How Hamburg Waterworks compares
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. Hamburg Waterworks's 7 ppb sits at the 88th percentile in Arkansas and the 95th nationally (higher means more lead).
Other water systems in Ashley County
8 other systems share Ashley County; 0 of them have a higher latest lead result than Hamburg Waterworks. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Crossett Water Commission | 7,900 | 1 ppb |
| North Crossett Utilities | 3,222 | 3 ppb |
| Fountain Hill Waterworks | 1,028 | - |
| West Ashley County Water Assn | 683 | - |
| Portland Waterworks | 625 | - |
| Montrose Boydell Water System | 473 | - |
| Wilmot Waterworks | 416 | - |
| Parkdale Waterworks | 377 | - |
Your move
Test your own tap with a certified lab first-draw sample; Hamburg, 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 Hamburg 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. The action level is dropping - the 10 ppb rule from 2027.