Carroll Water Works, 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.
Carroll Water Works at a glance
Carroll Water Works serves about 875 people through 350 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 Coos County, New Hampshire. EPA system ID: NH0381010. Ask the utility on your bill for your address in their service line inventory.
Neighbouring systems
17 other systems share Coos County. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Berlin Water Works | 9,575 | 0 (not detected) |
| Groveton Water Sys | 2,650 | - |
| Gorham Water And Sewer Dept | 2,630 | - |
| Lancaster Water Dept | 2,500 | - |
| Whitefield Water | 1,640 | - |
| Colebrook Water Works | 1,300 | - |
| W Stewartstown Water Pct | 428 | - |
| North Stratford Water Dept | 300 | - |
| Pittsburg Water Dept | 233 | - |
| Errol Water Works/West | 183 | - |
What to do in your house
Test your own tap with a certified lab first-draw sample; Twin Mountain, 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 Carroll Water Works 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. Systems that went over once often dip back under; here is what that means.