Mount Holly Waterworks, AR
Lead detected, under the action levels
Latest 90th-percentile lead: 3 ppb (monitoring period 2017-2019). 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.
Mount Holly Waterworks at a glance
Mount Holly Waterworks serves about 384 people through 153 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Union County, Arkansas. EPA system ID: AR0000002; phone on file: 870-862-2784. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Mount Holly Waterworks's lead record
The highest 90th-percentile result EPA holds for Mount Holly Waterworks is 3 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2019 | 3 ppb |
How Mount Holly 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. Mount Holly Waterworks's 3 ppb sits at the 78th percentile in Arkansas and the 82nd nationally (higher means more lead).
Nearby utilities
23 other systems share Union County; 0 of them have a higher latest lead result than Mount Holly Waterworks. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| El Dorado Waterworks | 17,932 | 2 ppb |
| Smackover Waterworks | 2,821 | - |
| Parkers Chapel Public Water | 2,391 | - |
| Wildwood Water Association | 1,350 | - |
| Faircrest Water Association | 1,329 | - |
| Old Union Public Water Authority | 1,200 | - |
| New Hope Water Association | 1,136 | - |
| Strong Waterworks | 1,131 | - |
| Norphlet Waterworks | 1,112 | - |
| Lawson-Urbana Water Assoc | 1,108 | - |
Next steps for El Dorado, AR
Test your own tap with a certified lab first-draw sample; El Dorado, 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 Mount Holly 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Systems that went over once often dip back under; here is what that means.