Mifflinburg Boro Water Dept, PA
Lead detected, under the action levels
Latest 90th-percentile lead: 0.64 ppb (monitoring period 2025-2025). 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.
Mifflinburg Boro Water Dept at a glance
Mifflinburg Boro Water Dept serves about 3,690 people through 1,626 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 surface water, in Union County, Pennsylvania. EPA system ID: PA4600012; phone on file: 570-966-1013. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2022 (0.47 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Mifflinburg Boro Water Dept is 1.57 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.64 ppb |
| 2022 | 0.47 ppb |
| 2019 | 1.57 ppb |
| 2016 | 1.25 ppb |
How Mifflinburg Boro Water Dept compares
Of the 516 Pennsylvania systems with a lead result, the median latest reading is 2 ppb; 143 are over 15 ppb right now and 156 have gone over at some point. Mifflinburg Boro Water Dept's 0.64 ppb sits at the 27th percentile in Pennsylvania and the 45th nationally (higher means more lead).
Neighbouring systems
5 other systems share Union County; 0 of them have a higher latest lead result than Mifflinburg Boro Water Dept. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| New Berlin Municipal Authority | 990 | - |
| Pine Valley Mobile Home Court | 425 | - |
| West Buffalo Twp Mun Auth | 333 | - |
| Limestone Twp Mun Auth | 200 | - |
| Rolling Hills Manor | 64 | - |
Next steps for Mifflinburg, PA
Test your own tap with a certified lab first-draw sample; Mifflinburg, PA 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 Mifflinburg Boro Water Dept 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. The action level is dropping - the 10 ppb rule from 2027.