Granville Centre Water Co, MA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2023-2025). 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
Granville Centre Water Co serves about 70 people through 30 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Hampden County, Massachusetts. EPA system ID: MA1112000; phone on file: 9144004243. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is down 1.9 ppb from 1.9 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Granville Centre Water Co is 8.8 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 1.9 ppb |
| 2019 | 8.8 ppb |
| 2016 | 2.68 ppb |
How Granville Centre Water Co compares
Of the 535 Massachusetts systems with a lead result, the median latest reading is 1.7 ppb; 13 are over 15 ppb right now and 66 have gone over at some point. Granville Centre Water Co's reported as 0 (not detected) sits at the 6th percentile in Massachusetts and the 6th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
26 other systems share Hampden County; 24 of them have a higher latest lead result than Granville Centre Water Co. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Springfield Water And Sewer Commission | 169,170 | 3.5 ppb |
| Chicopee Water Dept (Mwra) | 55,560 | 1.5 ppb |
| Westfield Dpwwater Division | 41,094 | 2.7 ppb |
| Holyoke Water Works | 37,838 | 9 ppb |
| West Springfield Dpw Water Division | 28,835 | 1.6 ppb |
| Agawam Water Department | 28,692 | 1.5 ppb |
| East Longmeadow Dpw Water Dept | 16,358 | 1.4 ppb |
| Longmeadow Water Dept | 15,853 | 1.8 ppb |
| Wilbraham Water Dept (Mwra) | 8,533 | 5.63 ppb |
| Southwick Water Dept | 7,669 | 2.6 ppb |
Your move
Look up your address in Granville Centre Water Co'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 Granville Centre Water Co 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.