Chapter 21E in Massachusetts — cleanup costs, contribution, and a notice that must be answered in 45 days

Chapter 21E is the Massachusetts oil and hazardous material statute — the state's counterpart to the federal Superfund law, and in several respects broader than it.

Two things define liability under it. It is strict, joint and several, and retroactive: a current owner can be liable for contamination caused by someone else long before they bought the property. And the § 4A notice is the procedural gateway — it starts the limitations clock, it compels a written answer within 45 days, and it is what makes attorney's fees available.

What the claim is

Your property is contaminated with oil or hazardous material, you are paying to clean it up, and you want the responsible parties to pay their share.

Where the right comes from

G.L. c. 21E, with the cleanup standards in the Massachusetts Contingency Plan, 310 CMR 40.0000.

Who is liable — § 5

Section 5 defines the potentially responsible parties, and the list is broad:

• The owner or operator of the site or vessel;
• Any person who owned or operated it at the time of storage or disposal of the material;
• Any person who arranged for transport, disposal, storage or treatment — the generator;
• Any person who transported the material to the site; and
• Any person who otherwise caused or is legally responsible for a release.

Liability is strict. Fault is not an element. It is joint and several, so any one responsible party can be made to pay the whole cost and left to seek contribution. And it is retroactive — current ownership can carry liability for a release that occurred before the owner existed.

That combination is what makes environmental diligence a condition of every commercial property transaction in Massachusetts.

The defences are narrow. An act of God, an act of war, and the third-party defence for a release caused solely by someone with no contractual relationship to the defendant, where the defendant exercised due care. There is also a limited protection for an innocent landowner who acquired the property without knowing of the contamination after appropriate inquiry, and statutory relief for certain eligible persons and downgradient property owners.

The three claims

§ 4 — cost recovery. A person who incurs response costs may recover them from a liable party.

§ 4A — contribution, reimbursement or equitable share. The mechanism by which a party who has paid seeks an allocation from others, and the section that supplies the notice requirement and the fee provision.

§ 5 — liability, which defines who can be reached.

In practice a complaint pleads them together: § 5 to establish the defendant's status, § 4 to recover what was spent, § 4A to allocate.

The § 4A notice

This is the step that decides whether a case is worth bringing, and it is easy to get wrong.

Form and delivery. The notice must be sent by certified mail, return receipt requested.

Contents. It must:

1. identify the notifier;
2. describe the response action taken or to be taken and its cost;
3. describe with particularity the legal and factual basis for asserting the recipient's liability; and
4. state the proposed equitable share the notifier seeks.

The recipient must answer. The statute provides that the recipient "shall respond to the notifier in writing by certified mail, return receipt requested, within forty five days of receipt of the notice."

And the consequence runs through fees. Section 4A ties the availability of litigation costs and reasonable attorney's fees to the notice-and-response process. A party that fails to respond, or whose response or conduct in the negotiation was without any reasonable basis or not in good faith, is exposed to a fee award — and a notifier who never sent a compliant notice has forfeited that route.

That fee exposure is why these disputes are negotiated in correspondence long before anyone files.

Limitations — § 11A

Section 11A sets the periods, and the accrual triggers are unusual.

Response cost recovery and contribution: three years, running from the latest of several statutory triggers — discovery of the identity of a liable person, incurring all response costs, payment, or the sending of the § 4A notice. Because the clock runs from the latest of these, a party still incurring costs generally has not started it.

Property damage: three years. And here Grand Manor Condominium Association v. City of Lowell, 478 Mass. 682 (2018), supplies the accrual rule that matters: the period runs only once the plaintiff has knowledge that they have suffered damage that is not curable by the MCP remediation process.

Grand Manor is the practical answer to an obvious problem. A property owner watching a cleanup proceed does not know whether they will end up with residual loss until the cleanup is far enough along to tell. Starting the clock at discovery of contamination would force owners to sue for damage that might never materialise.

What has to happen before you file

The § 4A notice, and the 45-day response window — for a contribution claim and for the fee exposure.

Notification to the Department of Environmental Protection of a reportable release, which is a separate regulatory obligation with its own deadlines under the MCP and is not optional.

Engage a Licensed Site Professional. Massachusetts privatised cleanup oversight, and an LSP directs the assessment and remediation under the MCP. The LSP's work is the evidentiary foundation of any cost recovery claim.

What the claim pays

Response costs — assessment, containment, removal, remediation, monitoring, and the LSP's and consultants' fees.

An equitable share from each liable party, allocated on the factors a court considers relevant: relative culpability, the volume and toxicity of what each contributed, cooperation, and the benefit each received.

Property damage, subject to the Grand Manor accrual rule.

Litigation costs and reasonable attorney's fees, through the § 4A and § 15 provisions, where the other party's position lacked a reasonable basis or good faith.

Twelve percent interest.

No multiplier.

Which court

Superior Court. These are complex, expert-driven cases involving equitable allocation, and they belong there. The federal analogue under CERCLA may be brought in federal court, and the two are frequently pleaded together.

Common defenses

• Not a liable party under § 5.
• The third-party defence — the release was caused solely by an unrelated party and the defendant exercised due care.
• Innocent landowner or eligible person status.
• Limitations under § 11A, with attention to which trigger applies.
• The costs were not necessary or not consistent with the MCP — the most common dispute in a cost recovery case.
• The equitable share sought is wrong, which is an allocation argument rather than a liability defence.
• No § 4A notice, which does not defeat liability but affects fees.

What people get wrong

You can be liable for contamination you did not cause. Ownership is enough, and it is retroactive.

Joint and several means all of it. One responsible party can be made to pay the entire cost and then chase the others.

The § 4A notice is not a formality. It has four required contents, it compels a 45-day written response, and the fee remedy runs through it.

The clock runs from the latest trigger, so a party still incurring costs is generally still in time.

Property damage accrues under Grand Manor, once the plaintiff knows the damage is not curable by remediation.

An LSP is not optional. The Massachusetts cleanup system is built around them.

Where it came from

Chapter 21E was enacted in 1983, closely following the federal Superfund statute, and it adopted the same core insight: contaminated land is worthless and dangerous, cleanups are expensive, and a fault based liability system would leave most sites unremediated while everyone litigated who spilled what in 1962.

Strict, joint and several, retroactive liability solves that by making the cleanup happen first and the argument about shares happen second. It is deliberately harsh, and the harshness is the mechanism — a purchaser who knows they will inherit the problem will investigate before buying, and a current owner who cannot escape liability will clean up and then pursue the people responsible.

Massachusetts then went further than the federal system in one important respect. Rather than requiring government oversight of each cleanup, the 1993 amendments privatised it: a Licensed Site Professional directs the work under the Contingency Plan, and the Department audits rather than supervises. That made cleanups faster and put the professional's judgment at the centre of any later cost dispute.

The § 4A notice-and-response structure is the litigation counterpart of the same philosophy. The statute makes the parties exchange positions in writing, with a deadline and with fee consequences for unreasonableness, before anyone gets to court — because allocation disputes among responsible parties are the part of environmental law most amenable to negotiation and least amenable to trial.

Common questions

Can I be liable for contamination I did not cause?

Yes. Liability under c. 21E is strict, joint and several, and retroactive — a current owner can be liable for a release caused by a predecessor.

What is the § 4A notice?

A certified-mail notice identifying you, describing the response action and its cost, setting out the basis for the recipient's liability, and stating the equitable share you seek. The recipient must respond in writing within 45 days.

How long do I have to sue?

Three years, running from the latest of several triggers — discovery of a liable party, incurring all response costs, payment, or sending the § 4A notice. Property damage claims accrue when you know the damage cannot be cured by remediation.

Can I recover attorney's fees?

Yes, where the other party's position lacked a reasonable basis or was not in good faith — and the route runs through the § 4A notice and response.

What if I bought the property without knowing?

There is limited protection for an innocent landowner who made appropriate inquiry, and statutory relief for eligible persons and downgradient property owners.

Do I need a Licensed Site Professional?

Yes. Massachusetts cleanups are directed by an LSP under the Contingency Plan, and their work is the foundation of a cost recovery claim.

Where these rules live

• Mass. R. Civ. P. 14 — Third-party practice
• Mass. R. Civ. P. 19 — Joinder of persons needed for just adjudication
• Mass. R. Civ. P. 26 — General provisions governing discovery
• Mass. R. Civ. P. 34 — Producing documents and entering onto land for inspection
• Mass. R. Civ. P. 56 — Summary judgment
• Computing deadlines