You are under agreement on a house, the inspection came back clean, and then somebody mentions that the lot at the end of the road is "a 21E site". The listing agent says it is nothing. The internet says the ground is poisoned. Neither is a useful answer, and the real one is a matter of public record you can read this afternoon.
Here is the part almost nobody gets right. Across the 101 towns of Western Massachusetts there are 312 sites with an open cleanup file, spread across 64 towns. There are also 410 parcels carrying a permanent land-use restriction recorded against the deed, across 48 towns. The second number is bigger than the first, and the second number is the one that can actually bind you as an owner.
What Chapter 21E Actually Is
Massachusetts General Laws Chapter 21E is the state's oil and hazardous material release law. It requires that a release be reported, that a licensed professional assess it, and that somebody clean it up to a defined standard. The registry is the public record of that process, and every entry has a release tracking number and a file you can open.
So a listing is evidence that the system worked. Somebody found something, reported it, and the Commonwealth has a file on it. The genuinely worrying property is the one where a tank leaked in 1974 and nobody ever said a word, and that property appears in no registry at all, because nothing was ever reported. An empty column below is a fact about the paperwork. It is not a clean bill of environmental health, and it should never be read as one.
The Open Files Are Not The Ones To Worry About
Every one of the 312 entries in the first column carries an open tier classification. Tier I is the more serious end, meaning higher risk or greater complexity, and 59 of the region's sites sit there. The rest are Tier II or the tier-classified downgrade that follows a partial cleanup. All of them mean the same basic thing: work is under way and the state is watching.
They cluster exactly where you would expect. Springfield carries 65 of them, more than any other town here, which reflects a century and a half of manufacturing in a dense city rather than anything about a particular street. A high count is a record of industrial history that was reported and is being addressed. It tells you close to nothing about the house you are looking at.
The One That Follows You Home
An Activity and Use Limitation is a deed restriction. It is recorded at the registry, it runs with the land, and it binds every future owner. It exists because a cleanup was closed out to a standard appropriate for some uses and not others, so the document writes down which is which.
In practice a restriction can prohibit residential use of part of a parcel, forbid growing food in certain soil, require that a cap or barrier layer be left undisturbed and maintained, or bar excavation below a stated depth. None of that is exotic. All of it is the sort of thing a buyer discovers after closing, because a home inspection does not look for it and a title search will list the instrument without explaining in plain language what it stops you doing.
If a property carries one, get the recorded document itself and read it before you make an offer, not after. It is a public record. Ask the seller's attorney for the release tracking number and the restriction follows from it.
That age is worth sitting with. These restrictions were recorded from 1993 onward, and 207 of the 410 predate 2005. A restriction recorded in 1997 has by now passed through two or three owners. It has not weakened, and nobody in that chain had to be reminded of it. The obligation is still exactly what the document says it is.
Springfield has the most, at 92. More telling is that 6 towns in the region carry a recorded restriction while having no open cleanup file at all. Those are places where the work is finished and the paperwork is the only thing left, which is precisely the situation where a buyer assumes there is nothing to check.
What Proximity Does And Does Not Mean
A registry entry a quarter mile away has, in the ordinary case, no bearing on your property. Contamination moves through soil and groundwater in ways that are site-specific, slow, and frequently very local, and the great majority of these files concern a footprint measured in yards.
The exception worth taking seriously is a private well. If you are drawing your own water and a release involving a groundwater contaminant sits upgradient of you, that is a real question, and it is a question for a water test and somebody who reads hydrogeology, not for a map and a ruler. 31 of the region's 101 towns have no community water system at all, so this is less of an edge case here than it would be almost anywhere else in the state.
Both Registries, Town By Town
Sortable and filterable. Read the two columns as different questions: the first is what is happening now, the second is what is written against the land permanently. Towns appearing in neither registry are not listed, and 31 of the 101 fall into that group.
Open Cleanup Files and Recorded Land-Use Restrictions by Town
Download CSV, same columns, same definitions
Sites carrying an open tier classification in the Commonwealth's disposal site registry, and parcels carrying a recorded Activity and Use Limitation, counted for each of the 101 towns. A count is a record of what was reported, not a measure of environmental quality.
| Town | County | Open Cleanup Files | Land-Use Restrictions |
|---|---|---|---|
| Adams | Berkshire | 10 | 6 |
| Agawam | Hampden | 7 | 6 |
| Amherst | Hampshire | 4 | 5 |
| Ashfield | Franklin | 0 | 1 |
| Belchertown | Hampshire | 2 | 2 |
| Blandford | Hampden | 0 | 1 |
| Brimfield | Hampden | 3 | 0 |
| Buckland | Franklin | 0 | 2 |
| Cheshire | Berkshire | 1 | 0 |
| Chester | Hampden | 1 | 1 |
| Chesterfield | Hampshire | 1 | 2 |
| Chicopee | Hampden | 24 | 24 |
| Clarksburg | Berkshire | 3 | 0 |
| Colrain | Franklin | 0 | 3 |
| Conway | Franklin | 1 | 0 |
| Dalton | Berkshire | 3 | 7 |
| Deerfield | Franklin | 2 | 1 |
| East Longmeadow | Hampden | 2 | 3 |
| Easthampton | Hampshire | 3 | 12 |
| Egremont | Berkshire | 1 | 3 |
| Gill | Franklin | 1 | 0 |
| Granby | Hampshire | 1 | 0 |
| Granville | Hampden | 1 | 1 |
| Great Barrington | Berkshire | 11 | 7 |
| Greenfield | Franklin | 8 | 14 |
| Hadley | Hampshire | 0 | 4 |
| Hatfield | Hampshire | 4 | 0 |
| Heath | Franklin | 1 | 0 |
| Hinsdale | Berkshire | 1 | 2 |
| Holyoke | Hampden | 17 | 31 |
| Huntington | Hampshire | 1 | 0 |
| Lanesborough | Berkshire | 3 | 0 |
| Lee | Berkshire | 1 | 3 |
| Lenox | Berkshire | 6 | 9 |
| Longmeadow | Hampden | 1 | 4 |
| Ludlow | Hampden | 5 | 7 |
| Middlefield | Hampshire | 2 | 0 |
| Monson | Hampden | 3 | 7 |
| Montague | Franklin | 3 | 2 |
| Monterey | Berkshire | 1 | 1 |
| New Marlborough | Berkshire | 1 | 0 |
| North Adams | Berkshire | 15 | 10 |
| Northampton | Hampshire | 7 | 16 |
| Northfield | Franklin | 0 | 3 |
| Orange | Franklin | 8 | 6 |
| Otis | Berkshire | 2 | 0 |
| Palmer | Hampden | 9 | 6 |
| Peru | Berkshire | 1 | 0 |
| Pittsfield | Berkshire | 22 | 29 |
| Richmond | Berkshire | 1 | 0 |
| Russell | Hampden | 3 | 1 |
| Sheffield | Berkshire | 2 | 0 |
| Shutesbury | Franklin | 2 | 0 |
| South Hadley | Hampshire | 2 | 7 |
| Southampton | Hampshire | 1 | 0 |
| Springfield | Hampden | 65 | 92 |
| Stockbridge | Berkshire | 3 | 3 |
| Sunderland | Franklin | 1 | 2 |
| Wales | Hampden | 2 | 0 |
| Ware | Hampshire | 5 | 2 |
| Warwick | Franklin | 1 | 0 |
| Wendell | Franklin | 1 | 0 |
| West Springfield | Hampden | 5 | 24 |
| Westfield | Hampden | 8 | 22 |
| Whately | Franklin | 1 | 1 |
| Wilbraham | Hampden | 1 | 7 |
| Williamsburg | Hampshire | 1 | 1 |
| Williamstown | Berkshire | 1 | 6 |
| Windsor | Berkshire | 1 | 0 |
| Worthington | Hampshire | 1 | 1 |
What These Columns Mean
- Town
- The municipality. Towns with nothing in either registry are not listed.
- County
- One of the four western counties.
- Open Cleanup Files
- Sites carrying an open tier classification in the state's disposal site registry. Assessment or cleanup is still under way.
- Land-Use Restrictions
- Recorded Activity and Use Limitations. Cleanups closed to a standard set for particular uses, with a restriction recorded against the deed.
Cite: RE413. “Open Cleanup Files and Recorded Land-Use Restrictions by Town.” Updated August 5, 2026. https://www.re413.com/news/contaminated-land-21e-western-mass/, underlying sources at https://www.re413.com/sources/.
What To Actually Do
- Look the address up. Our address check lists the registry entries recorded in that town with their state file numbers, each linking to the Commonwealth's own file, and flags where a recorded land-use restriction exists.
- Open the state file for anything genuinely close. The status, the substance released and the stage of cleanup are all in it, in the state's words rather than a summary of them.
- If the property itself carries a restriction, read the recorded document. Not the title-search line item. The instrument, which says what the land may and may not be used for.
- If you are on a private well, test the water regardless. Most people never do, and the naturally occurring problems in New England bedrock, arsenic, radon, manganese, are more likely to affect you than any entry in either registry.
Two useful pages if you are working through the ground under a specific house: what a private well actually commits you to and what an old house here tends to hide. Buried oil tanks sit at the intersection of both, and they are the single most common way an ordinary residential lot ends up in a state file.
Sources
- Massachusetts Department of Environmental Protection. The Chapter 21E disposal site registry and the Activity and Use Limitation registry, both living records counted here for the 101 towns as at our last check.
"Figures through" is the period the publisher's data describes; "checked" is only when we last asked. The full sourcing: sources and method.