Hudson Water Dept, 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.
Who runs the water here
Hudson Water Dept serves about 16,700 people through 6,700 service connections, which makes it a large 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: NH1201010. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
Against the period ending 2020 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Hudson Water Dept is 0 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2022 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2017 | 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. Hudson Water Dept's reported as 0 (not detected) sits at the 18th percentile in New Hampshire and the 38th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
67 other systems share Hillsborough County; 7 of them have a higher latest lead result than Hudson 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) |
| 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 | - |
| Wilton Water Works | 1,790 | - |
Your move
Look up your address in Hudson Water Dept'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 Hudson 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Small systems behave differently: why small systems go over more often.