Rollinsford Water Sewer Dist, NH
Above the federal action level
Latest 90th-percentile lead: 43 ppb (monitoring period 2024-2024). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. In the most recent monitoring period, more than 10% of the sampled homes measured above 15 ppb. Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking now, and test your own tap.
Who runs the water here
Rollinsford Water Sewer Dist serves about 1,688 people through 639 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Strafford County, New Hampshire. EPA system ID: NH2011010. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
The highest 90th-percentile result EPA holds for Rollinsford Water Sewer Dist is 43 ppb across 1 monitoring period, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 43 ppb over 15 |
Where this result ranks
Of the 124 New Hampshire systems with a lead result, the median latest reading is 16 ppb; 62 are over 15 ppb right now and 64 have gone over at some point. Rollinsford Water Sewer Dist's 43 ppb sits at the 85th percentile in New Hampshire and the 100th nationally (higher means more lead).
Other water systems in Strafford County
46 other systems share Strafford County; 0 of them have a higher latest lead result than Rollinsford Water Sewer Dist. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Dover Water Dept | 29,000 | 1 ppb |
| Rochester Water Dept | 25,000 | 2 ppb |
| Unh/Durham Water Sys | 16,000 | 0 (not detected) |
| Somersworth Water Works | 12,200 | 0 (not detected) |
| Farmington Water Dept | 3,250 | - |
| Milton Water Dist | 800 | - |
| Pineland Park | 425 | - |
| Emerald Acres | 250 | - |
| Sunrise Estates | 235 | - |
| Swains Lake Village Water | 227 | - |
What to do in your house
Use a filter certified to NSF/ANSI 53 for lead on the tap you drink and cook from, now, before you test. Then test your own tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Rollinsford Water Sewer Dist 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.