OPINION AND ORDER
In an earlier dispute between Emhart Industries, Inc. (“Emhart”) and its insurers arising out of a superfund cleanup, Defendant Liberty Mutual Insurance Company (“Liberty Mutual”) settled with Emhart. Plaintiff Century Indemnity Company (“Century”), another party to the dispute, went to trial against Emhart instead. Century prevailed on the merits, but was held responsible for a judgment of $6 million, because this Court found it was required to pay for Emhart’s legal defense in connection with the cleanup. Now, notwithstanding Liberty Mutual’s settlement with Emhart, Century seeks contribution from Liberty Mutual for a major portion of the judgment, on the theory that it too bore the obligation to provide a defense. The doctrine of equitable contribution, Century asserts, requires Liberty Mutual to pay its fair share.
The parties have cross-moved for summary judgment on these issues. After hearing oral argument on February 2, 2010, and considering the issues carefully, the Court concludes that Liberty Mutual did have a duty to defend Emhart, for the reasons fully explained below. Nevertheless, the Court believes that Liberty Mutual must be allowed to conduct the discovery it has requested on the issue of equitable contribution.
I. Background
A. The EPA Action
This dispute arises out of an enforcement action initiated by the Environmental Protection Agency (“EPA”) pursuant to the Comprehensive Environmental Response, Compensation and Liability Act of 1980 (“CERCLA” or “Superfund”). In 1998, the EPA detected hazardous chemicals at the Centredale Manor Superfund Site (the “Site”) in North Providence, Rhode Island. (See Def.’s Statement of Undisputed Facts, Dec. 1, 2009 (“Def.’s Facts”) ¶ 22.) Between 2000 and 2003, the agency issued several Administrative Orders to Emhart identifying it as a “potentially responsible party” for cleanup costs under CERCLA. The orders charged that the operations of Emhart’s corporate predecessors at the Site had resulted in the release or threatened release of hazardous substances. The documents set forth the following allegations:
• “Hazardous substances were disposed of at the Site as part of former operations of several chemical companies ... and a drum recycler____” (Def.’s Facts ¶25.)
• “Emhart is also a successor to liability of several chemical companies which operated at the Site from approximately 1943 to approximately 1971. The chemicals manufactured by these companies included hexachlorophene. The chemical companies also buried drums and other containers at the Site.” (Id.)
• “[An Emhart predecessor] operated at the Site from approximately 1952 to approximately 1969. [The company’s] operations included obtaining 55-gallon drums containing residual chemicals, disposing of certain drum residuals in the soil at the Site and incinerating other drum residuals at the Site.” (Id.)
• “There is evidence that drums and other waste material may be buried at the property. Drum carcasses were found by EPA in certain areas of the Site. Buried drums and waste material may *206 be leaching contaminants into the Woonasquatucket River.” (Id.)
• “[H]igh levels of chlorinated solvents ... found at the groundwater/surfaee water interface in the river indicate migration of contaminants from suspected buried waste near the riverbanks.” (Id.)
• “Evidence suggests that the operations of the chemical companies and the drum reconditioning facility at the Site resulted in releases and threats of releases of hazardous substances at the Site.” (Id.)
• In the “Site History” portion of the second Administrative Order, issued in March 2001, the EPA noted that “a major fire in the early 1970s destroyed most of the structures at the Site.” (PL’s Statement of Undisputed Facts, Sept. 17, 2009 (“PL’s Facts”) ¶ 6.)
In the course of responding to the EPA charges, Emhart incurred substantial legal defense costs.
During various time periods when the Site allegedly became contaminated, Em-hart’s corporate predecessors purchased insurance coverage from a number of companies, including Century and Liberty Mutual. Liberty Mutual’s policy contained a so-called “pollution exclusion,” which appears as boilerplate in many liability policies, that provides as follows:
[ T]he insurance does not apply to bodily injury or property damage arising out of the discharge, dispersal, release or escape of smoke, vapors, soot, fumes, acids, alkalis, toxic chemicals, liquids or gases, waste materials or other irritants, contaminants or pollutants into or upon land, the atmosphere or any watercourse or body of water; but this exclusion does not apply if such discharge, dispersal, release or escape is sudden and accidental.
(Def.’s Facts ¶ 27.) Century’s policy contained a narrower exclusion for liability arising out of the release of waste products, which disclaimed coverage only for “intentional” or “willful” pollution. (See id. ¶ 28.)
B. The Emhart Insurance Litigation
In January 2002, Emhart sued Century and Liberty Mutual, along with several of its other insurers, in this Court. Emhart claimed the insurers were obligated, under their respective policies, to pay its costs arising out of contamination at the Site.
See generally Emhart Indus., Inc. v. Century Indem. Co.,
Liberty Mutual moved for summary judgment on grounds that it bore no obligation to defend or indemnify Emhart, because of the pollution exclusion. On February 15, 2004, Magistrate Judge Robert W. Lovegreen issued a Report and Recommendation concluding that Liberty Mutual’s motion should be denied. (See Report and Recommendation, Emhart v. Home Ins. Co., C.A. No. 02-53 S, Doc. # 220 (D.R.I. Feb. 15, 2004) (hereinafter “R & R”).) In large part, this conclusion rested on the reference to a “major fire” in the EPA documents, as well as evidence regarding the fire that had arisen during discovery:
[ Beginning with the Second Administrative Order by EPA, there was the suggestion of a possibility that a major fire ... may have contributed to the spread of contaminants on the Site and beyond it. Whether such an event would qualify as the “sudden and accidental” occur *207 rence necessary to indicate at least a duty to defend under the Policies, is a question of fact not suitable for resolution at summary judgment.
(Id.
at 60.) Liberty Mutual objected to the R & R, but subsequently settled with Emhart’s parent company for $250,000 before the Court ruled on the objection.
See Emhart Indus.,
Century, on the other hand, chose to go to trial. A jury found that Century had no duty to indemnify Emhart under the policy at issue. However, this Court subsequently granted Emhart judgment as a matter of law on its duty to defend claim. The Court found that Century’s pollution exclusion did not apply, because the EPA documents did not state that the discharge was “intentional” or “willful.” Therefore, the Court entered judgment against Century.
See Emhart Indus.,
Prior to the Court’s decision, Century had asserted cross-claims against the other insurers, including Liberty Mutual, for allocation of any defense and indemnity costs determined to be owed to Emhart. After ruling in Emhart’s favor against Century, the Court dismissed all cross-claims without prejudice.
C. The Current Lawsuit
Century now renews its claims against Liberty Mutual from the earlier lawsuit, seeking to recover a portion of the judgment paid to Emhart. There are two steps to Century’s argument: first, Liberty Mutual had a duty to provide a legal defense to Emhart in connection with the EPA charges under Massachusetts law, which governs Emhart’s policies from Liberty Mutual; and second, as a result, Liberty Mutual is liable to Century under Rhode Island law, which governs equitable claims among the parties, pursuant to the doctrine of equitable contribution. According to Century, the doctrine requires Liberty Mutual to cover its share of defense costs by paying Century to offset its liability to Emhart.
II. Liberty Mutual’s Duty to Defend
For purposes of whether Liberty Mutual had a duty to defend Emhart, the most critical material facts of this dispute are the substantive assertions contained in the EPA charges against Emhart and the language of Liberty Mutual’s policies. There is no dispute about the content of those documents, or that Massachusetts law governs the policies. Furthermore, the parties agree that Liberty Mutual’s settlement with Emhart is not relevant to the scope of its duty to defend the company. Thus, resolving the first issue raised by the parties’ motions turns entirely on the question of whether Massachusetts law required Liberty Mutual to defend Emhart against the EPA charges.
A. Scope of the Duty to Defend
Under Massachusetts law, an insurer’s duty to provide a defense against third-party claims pursuant to a liability policy arises “if any allegations in the complaint [are] reasonably susceptible of an interpretation that they stated or adumbrated a claim covered by the policy.”
Home Ins. Co. v. Liberty Mut. Fire Ins. Co.,
The underlying complaint need only show, through general allegations, a possibility that the liability claim falls within the insurance coverage. There is no requirement that the facts alleged in the *208 complaint specifically and unequivocally make out a claim within the coverage. However, when the allegations in the underlying complaint lie expressly outside the policy coverage and its purpose, the insurer is relieved of the duty to investigate or defend the claimant.
Herbert A. Sullivan, Inc. v. Utica Mut. Ins. Co.,
Because duty-to-defend questions are generally decided via a facial comparison of the policy to the allegations against the insured, some courts refer to the standard as the “pleadings test.”
Siebe, Inc. v. Louis M. Gerson Co.,
In terms of timing, the duty to defend takes effect when a complaint “reasonably susceptible” to coverage is filed, and continues until the insurer obtains a judgment that there is no coverage.
Lumbermens Mut. Cas. Co. v. Belleville Indus., Inc.,
B. Collateral Estoppel
As a threshold matter, Liberty Mutual asserts that Century is collaterally estopped from contending that Liberty Mutual had a duty to defend Emhart. Liberty Mutual claims the jury in the Em-hart lawsuit decided an issue that effectively resolves the current dispute in its favor. But because the jury verdict was tangential to the issue now before the Court, this argument fails.
One question put to the jury in the prior case was whether another insurer, North River Insurance Company, was required to indemnify Emhart. North River’s policy only provided for indemnification, not for defense against third-party claims. It contained a pollution exclusion that was nearly identical to the one in the Liberty Mutual policy, and that carved out the same “sudden and accidental” exception. (Def.’s Facts ¶ 29.) The jury found the contamination at the Site was not sudden and accidental, and therefore that North River was not required to indemnify Emhart.
“[Cjollateral estoppel, or issue preclusion, means that when a factual or legal issue has once been determined by a valid and final judgment, that issue cannot again be litigated between the same parties in any future lawsuit.” Coors Brewing Co. v. Mendez-Torres, 562 F.3d 3, 8 (1st Cir.2009) (internal quotation marks and citation omitted). According to Liberty Mutual, this doctrine prevents Century from arguing that any pollution at the Site was “sudden and accidental,” because the jury in the related case found otherwise. Therefore, Liberty Mutual asserts, there can be no dispute that it owed Emhart no duty to defend, since its own policy also *209 prohibits coverage unless pollution was “sudden and accidental.”
This is a non-sequitur. Liberty Mutual concedes that, to establish collateral estoppel against Century, it must demonstrate that there is an “identity of issues.”
McCrory v. Spigel (In re
Spigel),
Liberty Mutual also cannot rely on the fact that the defense obligation expires upon a ruling that there is no coverage for liability to third parties. As the Court noted in its decision in the prior lawsuit, and as the First Circuit repeated in affirming the judgment for Emhart, “generally, an indemnity finding favorable to an insurer does not erase that insurer’s defense obligations, as long as the pleadings test has been satisfied.”
Emhart,
It therefore does not matter whether Century can re-litigate the question of whether pollution at the site was “sudden and accidental” as a matter of fact, because the answer is beside the point. Instead, the decisive question is whether the EPA charges were “reasonably susceptible” to coverage under the “sudden and accidental” clause. The Court now turns to that issue.
C. Are the Charging Documents “Reasonably Susceptible” to Coverage Under the Liberty Mutual Policy?
Although this case presents a close question, the Court concludes that the charging documents against Emhart did activate Liberty Mutual’s duty to defend the company under the “liberal” standards set by Massachusetts law.
See Home Ins.,
1. The allegations do not foreclose coverage
To begin with, the charging documents do not assert that all the environmental damage was non-sudden and non-accidental. Instead, as Judge Lovegreen observed in the Report and Recommendation issued in the prior lawsuit, they “lack ... conclusions .... with respect to the nature and source of the contamination.” (R & R at 58.) For example, some of the allegations are vague about timing. One claims that “the operations of the chemical companies and the drum reconditioning facility at the Site resulted in releases and threats of releases.” (Def.’s Facts ¶ 25.) This charge does not detail the time frame in which the “releases” occurred.
True, other allegations point the finger at waste disposal practices of Emhart’s corporate predecessors. These, Liberty Mutual contends, can only be consistent with deliberate and gradual pollution. One of the documents states that “hazardous substances were disposed of at the Site as part of former operations” of several companies. (Id.) It further asserts that companies “buried” and “incinerat[ed]” drums and other waste containers.
(Id.)
However, as the Court ruled in the Em-hart lawsuit, “[n]one of [the EPA] documents allege the
intentional
or
unllful
introduction of waste products at the Site.”
Emhart Indus., Inc. v. Home Ins. Co.,
Thus, at a minimum, the documents do not make it clear that all the contamination was either gradual or intentional. Some authority suggests this is sufficient to mandate defense coverage under Liberty Mutual’s policies. For example, in
In re Acushnet River & New Bedford Harbor,
[The insureds have] thrown, discharged, deposited or caused, suffered, or procured to be thrown, discharged or deposited from their manufacturing establishments refuse contaminated with [chemicals], and other refuse matter, into [an] [e]stuary and New Bedford Harbor, and the tributaries of such waters, without permits issued by the Secretary of the Army.
Acushnet River,
Nothing in the complaint alleges that all the releases were both non-sudden and non-accidental. Therefore, the insurers must undertake the defense of the insured unless they can conclusively prove that every single release was non-sudden and non-accidental.
Id.
The First Circuit reached the same conclusion about similar allegations in
Milli
*211
pore Corp. v. Travelers Indem. Co.,
Accordingly, like the allegations in Acushnet River and Millipore, the charges here link some releases to waste disposal, but do not clarify that all pollution was gradual or intentional. Hence, they “at least arguably” call for coverage under the “sudden and accidental” clause and therefore summon Liberty Mutual’s duty to defend. Id.
2. The documents identify a potential “sudden and accidental” release
It is not good enough, Liberty Mutual says, that the allegations fail to rule out coverage. A complaint must do more than reveal the absence of a negative. For the duty to defend to arise, an “ordinary intelligent person reading the complaint” must be able to identify alleged events that fall within the policy.
Liberty Mut. Ins. Co. v. SCA Servs., Inc.,
Consequently, for a complaint to trigger the duty to defend under the “sudden and accidental” clause, it must describe “an abrupt discharge or release.”
SCA Servs.,
The pollution alleged in this case was not “sudden”.....The complaint details routine business activity lasting over several months in which the toxic contents of the barrels brought by SCA to the landfill were either emptied into open trenches or dumped into trenches and flattened with a bulldozer. To an ordinary intelligent person reading the complaint in the New York action, it is evident that the government asserts contamination of the site, and the surrounding area and waters due to continuous waste disposal practices occurring over a protracted period of time as a concomitant part of a regular business activity. Such a situation is within the pollution exclusion because it is not “sudden and accidental.”
SCA Servs.,
What tips the scales in favor of recognizing a duty to defend here is that, unlike the complaint in SCA Servs., the EPA documents meet the standards established in that case. Contrary to Liberty Mutual’s suggestion, an “ordinary intelligent person” could find that the documents reveal a possible “abrupt discharge or re *212 lease” of hazardous chemicals at the Site. Not only do the allegations fail to rule out this possibility — in contrast to the unmistakable course of “routine” conduct depicted in the complaint in SCA Servs, see id. at 1350 2 — but they also identify a specific sudden, destructive event that may have caused some of the contamination. The EPA’s March 2001 Administrative Order tells of “a major fire in the early 1970s” that “destroyed most of the structures at the Site.” (Pl.’s Facts ¶ 6.) In the absence of any allegation about arson, it is reasonable to assume the fire was a sudden accident. Moreover, it is also reasonable to conclude that the destruction of chemical facilities may have contributed to the extensive chemical contamination later discovered at the Site. 3
Liberty Mutual dismisses the fire as a red herring. The EPA does not attribute any pollution to the event, but rather mentions it in the “Site History” portion of the Order. The charges setting forth Em-hart’s liability, Liberty Mutual says, identify business activities and waste disposal practices as the real culprits. Thus, it professes, by itself the passing allusion to a fire cannot support the duty to defend.
There are two gaps in this line of defense. First, the Court cannot ignore facts favorable to an insured simply because they are presented as background information. It must consider such allegations, along with the specific accusations against the insured, to determine whether the charging documents state a claim that conjures the duty to defend.
See Travelers Indem. Co. of Ill. v. United Food & Commercial Workers Int’l Union,
Second, even assuming the most reasonable reading of the charges is that most of the pollution was gradual and non-accidental, this is not dispositive. Under Massachusetts law, the fact that a policy excludes the majority of damages set forth in a complaint does not lift the duty to defend. Rather, the duty continues if even a small amount of harm could be attributable to a covered event. In
Acushnet River,
as noted, the complaint left open the possibility of “sudden and accidental” pollution, and thus foisted the duty to defend on the insurer. However, the insurers’ “ultimate duty to indemnify, appeared] limited to only a small fraction of the damages which may ultimately be recoverable.”
Acushnet River,
*213 No decision the court has located in Massachusetts has debunked the premise that the defense obligation persists in the face of “negligible” or “infinitesimal” liability for damages. The Massachusetts Supreme Judicial Court in Lumbermens did not criticize the assumption that an “undoubted duty to defend” could coexist with a “negligible duty to indemnify,” which was built into a question of law certified by the Acushnet River decision. 4 Id. at 1280. As a result, it is clear that the portion of alleged damages a policy might ultimately cover does not need to exceed a de minimis amount to sustain the duty to defend, until the insurer obtains a judgment in its favor.
In sum, the fire at the Site qualifies as a “sudden and accidental” event that might have contributed to the contamination. The mention of it in the EPA documents, and the absence of any allegation that all the pollution was gradual, imposed the duty to defend on Liberty Mutual. The fact that the charges do not say the fire caused any chemical releases, and thus that its impact on damages may have only been de minimis, did not eliminate Liberty Mutual’s obligation.
3. “Extrinsic ” evidence
In general, the “pleadings test” for determining the duty to defend “is based exclusively on the facts as alleged rather than the facts as they actually are.”
SCA Servs.,
As the jury verdict in the Emhart lawsuit demonstrates, a central fact dispute in the case concerned whether pollution at the Site could have been “sudden and accidental.”
See Emhart,
D. Conclusion
For each of the reasons stated above, the Court concludes that Liberty Mutual did, in fact, owe Emhart a duty to defend. It now turns to Century’s argument that *214 this entitles it to equitable contribution from Liberty Mutual.
III. Equitable Contribution and Liberty Mutual’s Rule 56(f) Motion
Century next argues that, because Liberty Mutual shared the duty to defend Emhart with Century, the two insurers were “joint obligors” with respect to the judgment Century paid to Emhart.
Kerney v. Kerney,
Liberty Mutual responds that, if the Court finds Liberty Mutual bears the duty to defend along with Century — as it has done — it is premature to address the issue of equitable contribution. Liberty Mutual moves pursuant to Rule 56(f) for a continuance to conduct discovery in two areas it claims must be explored to assess whether contribution is warranted.
See
Fed. R.Civ.P. 56(f) (explaining that a party may request leave to conduct discovery in response to a motion for summary judgment if it can demonstrate that otherwise it “cannot present facts essential” to its opposition). One, it asks to investigate whether Century attempted to mitigate its damages, which it had the duty to do under Rhode Island law, through reasonable settlement efforts.
See McFarland v. Brier,
Century objects that Liberty Mutual has not met the prerequisites for Rule 56(f) relief. In general, a party making a Rule 56(f) motion must “demonstrate that it was diligent in pursuing discovery before the summary judgment initiative surfaced.”
C.B. Trucking, Inc. v. Waste Mgmt., Inc.,
Liberty Mutual, Century complains, has not identified any facts that suggest Century passed up reasonable settlement offers from Emhart during the prior trial, or took any unreasonable litigation strategies. It also has not set forth a plausible basis to believe there is any additional relevant information about other insurers’ liability for defense costs that was not unearthed in the Emhart lawsuit, according to Century.
The Court is sympathetic to the grievance that Liberty Mutual’s discovery requests come late in the day. Neverthe
*215
less, it concludes that a short period to conduct limited discovery will further the full and fair resolution of the dispute over equitable contribution. There has never been a discovery cut-off in this case, since the parties proceeded directly to dispositive motions after Century initiated the action. Thus, the Court is confident that Liberty Mutual is not using Rule 56(f) to flout a scheduling order, or to make up for dallying during a discovery period.
Cf. Nidds v. Schindler Elevator Corp.,
Liberty Mutual’s requests are reasonable. As for mitigating damages, during the hearing on this matter, Century conceded that it had engaged in some settlement discussions with Emhart in the prior lawsuit. The Court sees no problem in allowing Liberty Mutual to review any offers extended by Emhart, and Century’s responses. Century represents that it did not receive any offers for less than the judgment it ultimately paid. If true, this should be easy enough to confirm in an affidavit, assuming there is no documentary record of negotiations.
As for joining other parties, Century insists that it had every incentive to saddle other insurers with defense liability, and has already determined that none besides Liberty Mutual is worth pursuing. The Court does not doubt Century’s diligence, but Century’s judgment is not binding on Liberty Mutual. The Court concludes that Liberty Mutual is entitled to a limited time period to conduct its own investigation. It may be that Century has, in fact, exhausted all contribution possibilities; if true, it is in Century’s interest to prove that fact to Liberty Mutual by sharing relevant information. Century is therefore directed to make reasonable efforts to provide Liberty Mutual with information in its possession pertaining to potential contributors, and Liberty Mutual may take discovery to confirm or rebut what it knows.
Accordingly, Liberty Mutual is hereby granted 60 days to conduct discovery on the following two topics: (i) what, if any, settlement offers Emhart made to Century in connection with the claims at issue in the Emhart lawsuit, and how Century responded; and (ii) whether any other insurers owed Emhart a duty to defend the EPA action.
IV. Conclusion
In this Opinion, the Court has ruled on the first issue raised by the parties’ cross-motions, by concluding that Liberty Mutual did owe Emhart a duty to defend. It thus GRANTS Century’s motion in part, and DENIES Liberty Mutual’s cross-motion in part. However, it further GRANTS Liberty Mutual’s motion for a continuance to conduct the discovery described above before ruling on the issue of equitable contribution. The Court will schedule a status conference to discuss supplemental briefing and the joinder of *216 additional parties, if necessary, once discovery is complete.
IT IS SO ORDERED.
Notes
. There is some ambiguity about whether federal or state issue-preclusion law applies to judgments of federal courts sitting in diversity jurisdiction.
See Lynch
v.
Merrell-Nat’l Labs., Div. of Richardson-Merrell, Inc.,
. The insured in that case had, "through its agents, servants and employees, contacted [the landfill operator] and arranged to dispose of industrial and chemical wastes at the ... landfill site.”
Liberty Mut. Ins. Co. v. SCA Servs., Inc.,
. Again, the apparent rejection of that theory by the jury in the Emhart lawsuit is irrelevant.
. The question was whether "there is any procedure whereby an insurer with an undoubted duty to defend but with a negligible duty to indemnify can bring the continuing duty to defend to an end short of conclusively establishing as against the plaintiff in the underlying action the extent of the claim that is covered by the insurance.”
Acushnet River,
