Bolton Office Park Alta Nashoba Valley, MA
Lead detected, under the action levels
Latest 90th-percentile lead: 1 ppb (monitoring period 2022-2022). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
About Bolton Office Park Alta Nashoba Valley
Bolton Office Park Alta Nashoba Valley serves about 788 people through 1 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Worcester County, Massachusetts. EPA system ID: MA2034019; phone on file: 7818488787. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
Against the period ending 2021 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Bolton Office Park Alta Nashoba Valley is 1.5 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2022 | 1 ppb |
| 2021 | 1 ppb |
| 2019 | 0 (not detected) |
| 2018 | 1.3 ppb |
| 2016 | 1.5 ppb |
Against other Massachusetts systems
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. Bolton Office Park Alta Nashoba Valley's 1 ppb sits at the 32nd percentile in Massachusetts and the 53rd nationally (higher means more lead).
Other water systems in Worcester County
107 other systems share Worcester County; 63 of them have a higher latest lead result than Bolton Office Park Alta Nashoba Valley. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Worcester Dpwp, Water Supply Division | 206,518 | 2 ppb |
| Fitchburg Dpw Division Of Water Supply | 41,946 | 5 ppb |
| Leominster Water Division | 41,683 | 2.8 ppb |
| Shrewsbury Water Department | 38,325 | 0 (not detected) |
| Milford Water Department | 30,379 | 1 ppb |
| Westborough Water Department | 21,567 | 1.8 ppb |
| Gardner Water Department | 21,381 | 8 ppb |
| Southbridge Water Department | 19,562 | 3 ppb |
| Holden Water Division, Dpw | 18,016 | 3.1 ppb |
| Webster Water Department | 17,776 | 3.7 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Bolton, MA may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Bolton Office Park Alta Nashoba Valley 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Systems that went over once often dip back under; here is what that means.