Jaffrey Water Works, NH
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2020-2022). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Jaffrey Water Works at a glance
Jaffrey Water Works serves about 3,800 people through 1,525 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Cheshire County, New Hampshire. EPA system ID: NH1221010. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
Against the period ending 2019 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Jaffrey Water Works is 0 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 0 (not detected) |
Against other New Hampshire systems
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. Jaffrey Water Works's reported as 0 (not detected) sits at the 11th percentile in New Hampshire and the 34th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Cheshire County
30 other systems share Cheshire County; 4 of them have a higher latest lead result than Jaffrey Water Works. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Keene Water Dept | 30,000 | 0 (not detected) |
| Winchester Water Dept | 2,800 | - |
| North Hinsdale Water Dept | 1,800 | - |
| N Swanzey Water And Fire Prct | 1,700 | - |
| Hinsdale Water Dept/Downtown | 1,600 | - |
| Troy Water Works | 1,200 | - |
| Walpole Water Dept | 1,057 | - |
| Marlborough Water Works | 750 | - |
| West Swanzey Water | 430 | - |
| Cheshire County Complex | 380 | 32 ppb |
Your move
Look up your address in Jaffrey Water Works's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Jaffrey 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. The lead result guide covers how utilities pick the homes they sample. A zero today does not rule out a jump later - the rules are tightening in 2027.