Mittersill Water Dept, NH
Above the federal action level
Latest 90th-percentile lead: 18 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
Mittersill Water Dept serves about 475 people through 112 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 Grafton County, New Hampshire. EPA system ID: NH0841020. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
That is down 26 ppb from 44 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Mittersill Water Dept is 44 ppb across 5 monitoring periods, 5 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 18 ppb over 15 |
| 2024 | 44 ppb over 15 |
| 2024 | 16 ppb over 15 |
| 2023 | 18 ppb over 15 |
| 2021 | 19 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. Mittersill Water Dept's 18 ppb sits at the 58th percentile in New Hampshire and the 99th nationally (higher means more lead).
Nearby utilities
68 other systems share Grafton County; 7 of them have a higher latest lead result than Mittersill Water Dept. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Lebanon Water Dept | 13,600 | 2 ppb |
| Hanover Water Dept | 9,600 | 0 (not detected) |
| Plymouth Vlg Water And Sewer | 6,700 | 2 ppb |
| Littleton Water And Light | 6,500 | 8 ppb |
| Bristol Water Works | 3,575 | 5 ppb |
| Lincoln Water Works | 3,300 | 7 ppb |
| Waterville Valley Water Dist | 3,150 | - |
| Woodstock Water Dept | 2,950 | - |
| Woodsville Water And Light | 1,950 | - |
| Bethlehem Village Dist | 1,750 | - |
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 Mittersill 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. The lead result guide covers how utilities pick the homes they sample. Size matters more than most people expect: small vs large water systems.