Greenville Water Dept, NH
Above the federal action level
Latest 90th-percentile lead: 110 ppb (monitoring period 2019-2021). 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.
About Greenville Water Dept
Greenville Water Dept serves about 1,100 people through 440 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 surface water, in Hillsborough County, New Hampshire. EPA system ID: NH0991010. 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 Greenville Water Dept is 110 ppb across 1 monitoring period, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2021 | 110 ppb over 15 |
How Greenville Water Dept compares
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. Greenville Water Dept's 110 ppb sits at the 94th percentile in New Hampshire and the 100th nationally (higher means more lead).
Nearby utilities
67 other systems share Hillsborough County; 0 of them have a higher latest lead result than Greenville Water Dept. 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 | - |
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 Greenville 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.