Emerald Lake, NH
No lead results on file with EPA
Latest 90th-percentile lead: no result on file. The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. EPA's database has no Lead and Copper Rule results for this system. Without them there is nothing to go on, so a tap test is the only way to know.
About Emerald Lake
Emerald Lake serves about 1,300 people through 528 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 Hillsborough County, New Hampshire. EPA system ID: NH1141020. Ask the utility on your bill for your address in their service line inventory.
Other water systems in Hillsborough County
67 other systems share Hillsborough County. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Manchester Water Works | 123,500 | 0 (not detected) |
| Pennichuck Water Works | 88,853 | 2 ppb |
| Merrimack Village Dist | 25,500 | 0 (not detected) |
| Hudson Water Dept | 16,700 | 0 (not detected) |
| Milford Water Utilities Dept | 9,500 | 2 ppb |
| Litchfield | 6,920 | 0 (not detected) |
| Peterborough Water Works | 4,500 | 9 ppb |
| Goffstown Village Pct | 3,250 | - |
| Little Pond Estates | 3,000 | - |
| Hillsborough Water Works | 2,000 | - |
Your move
Test your own tap with a certified lab first-draw sample; Hillsboro, NH 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 Emerald Lake 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.