Opinion

NORCOTT, J.

This appeal arises from a dispute regarding whether the comprehensive general liability policies issued by the defendant insurers provide coverage for the environmental claims asserted by the plaintiff. More specifically, we are asked, in part, to interpret the meaning and applicability of the "sudden and accidental" exception to the pollution exclusion contained in the defendants' insurance policies. The plaintiff, Buell Industries, Inc., filed a declaratory judgment action against the defendants, Federal Insurance Company (Federal) and Chicago Insurance Company (Chicago), after they had denied coverage. The defendants moved for summary judgment and the trial court, Koletsky, J., ruled in favor of the defendants. The plaintiff appealed from the judgment of the trial court. We now affirm the judgment of the trial court.

The following are the relevant facts and procedural history. The plaintiff is a Delaware corporation with its principal place of business in Waterbury, Connecticut. The issues in this appeal concern two manufacturing facilities owned by the plaintiff: Highland Manufacturing (Highland) and Anchor Fasteners (Anchor), both of which are located in Waterbury. The plaintiff manufactures metal parts at each of the facilities. In 1990, the plaintiff began an environmental investigation of the facilities. The investigation revealed that both sites were contaminated. According to the plaintiff, each of the sites was contaminated as a result of releases that had occurred during and after 1966.

The contamination at issue in this case concerns primarily groundwater pollution. At Highland, the significant source of contamination was trichloroethylene (TCE), which was located beneath the plant's former wastewater lagoon. TCE existed in this area in a dense nonaqueous phase liquid form, that was not fully dissolved in the groundwater and spread from the lagoon area to neighboring properties through the groundwater.

The Highland facility utilized a two stage degreasing machine, that used TCE in both liquid and vapor forms. Metal parts were placed into the degreasing tank in order to remove grease and dirt. The parts were then raised out of the liquid TCE and placed into the vapor TCE for continued cleaning and drying. Virgin TCE was typically stored in barrels in the room containing the degreasing unit. While there is no disagreement that TCE existed in the groundwater at Highland, how it got there is very much disputed.

Anchor produces a variety of metal products, including screws, nuts, rivets and clips. At Anchor, the main source of contamination at issue in this case was oil or, more specifically termed, total petroleum hydrocarbon (TPH). In 1986, an underground waste oil tank (tank) was removed from the loading dock area at Anchor. During this excavation, a former dry well, approximately six and one-half feet in depth, was discovered. The dry well was deconstructed and removed along with the tank. Despite the removal of the tank and the dry well, TPH contamination in the soil was discovered and, in 1994, approximately 800 cubic yards of soil were removed from the area. Nevertheless, monitoring wells installed at the site have indicated the periodic flow of free phase oil in this location. A passive oil collection system was installed in order to abate the contamination. Again, as with the Highland site, the parties do not disagree that the Anchor site is contaminated, although the cause of TPH contamination and the insurers' responsibility for the costs of its remediation are disputed.

The plaintiff filed claims with its insurers, including Federal and Chicago, for the costs of remediating the environmental contamination at Highland and Anchor. The plaintiff sought coverage, under the insurance contracts' property damage and personal injury provisions, for its costs associated with the investigation and cleanup of the contamination at the Highland and Anchor facilities. Both Federal and Chicago denied coverage.

The insurance policies can be described more specifically as follows. Federal provided primary comprehensive general liability insurance to the plaintiff for the period from February 1, 1975, through February 1, 1986. Chicago's policies provided umbrella liability insurance to the plaintiff for the period from February 1, 1980, through February 1, 1985. The Federal and Chicago policies both provide coverage for property damage and personal injury. The policies are occurrence based insurance. Insurance is provided on a per occurrence basis with "occurrence" defined, in the Federal policy effective February 1, 1975, as "an accident, including continuous or repeated exposure to conditions, which results, in bodily injury or property damage neither expected nor intended from the standpoint of the insured."

Each of the policies at issue in this case includes a pollution exclusion clause. While the wording of each differs slightly, both exclude from coverage any claims that are the result of the discharge of pollutants. The policies, however, also contain an exception to the pollution exclusion. This is the so-called "sudden and accidental" exception, which reinstates coverage when the release of pollutants is "sudden and accidental." In other words, the pollution exclusion makes clear that pollution related claims are excluded from coverage unless the claim is based on a release of pollutants that is "sudden and accidental." We emphasize that the focus of the pollution exclusion is on the release or discharge of the pollutants, which must be "sudden and accidental," rather than on the damage caused by such an event.

In response to the denials of coverage, the plaintiff filed an action for declaratory judgment on January 26, 1999. The plaintiff sought a judgment by the court declaring Federal and Chicago jointly and severally liable for the sums the plaintiff had paid, and that it will pay, with respect to the contamination at the Highland and Anchor sites. After the trial court granted the defendants' motion to strike the plaintiff's claim for attorney's fees, the plaintiff filed a notice of intent to appeal.

On June 9, 2000, Federal and Chicago moved for summary judgment, asserting that: (1) the insurance policies' pollution exclusion clause precludes coverage; (2) none of the plaintiff's claims constitutes "personal injury" as that term is defined in the insurance policies; and (3) the sums expended by the plaintiff are ordinary business expenses and not "damages" as required by the insurance policies. Additionally, Chicago asserted that: its excess insurance policy would not be reached since a pro rata allocation of the plaintiff's damages would prevent the policy from being triggered. The trial court rendered summary judgment for the defendants, ruling that, as a matter of law, the plaintiff's claims do not fall within the "personal injury" provisions of the defendants' insurance policies. The court also held that there exists no genuine issue of material fact that any of the discharges were, as required by the insurance policies, "sudden." The plaintiff appealed to the Appellate Court, and we transferred the case to this court pursuant to Practice Book § 65-1 and General Statutes § 51-199 (c).

The plaintiff makes three arguments on appeal. The plaintiff argues, first, that the trial court improperly concluded that the "sudden and accidental" exception to the pollution exclusion did not apply to the environmental contamination in this case. Second, the plaintiff argues that the trial court improperly rendered summary judgment for the defendants because a genuine issue of material fact exists regarding whether the contamination occurred slowly or abruptly. Finally, the plaintiff argues that the trial court improperly concluded that the personal injury provisions of the policy do not provide coverage for the environmental contamination at issue in the case. We examine each of these contentions in turn.

I

We first address the plaintiff's contention that the trial court improperly granted the motion for summary judgment in favor of the defendants on account of the pollution exclusion clause. The plaintiff argues that the "sudden and accidental" exception to the pollution exclusion clause covers these releases because the term "sudden" should be understood to mean unexpected and not necessarily quick or abrupt. The plaintiff maintains, in other words, that even though the discharges may have occurred over a period of years, the defendants' insurance policies should provide coverage so long as the releases were unexpected and accidental. We disagree with the plaintiff and conclude that the term "sudden," as used in the policies, includes a temporal quality, which requires that the onset of the release in question occurs quickly or happens abruptly.

The meaning of the pollution exclusion is an issue of first impression in this state, although Connecticut trial courts uniformly have interpreted the term "sudden" to require a temporally abrupt release of pollutants. Many other state courts, however, already have interpreted the exclusion. Our task would be easier if there existed a clear trend among the courts regarding the meaning of the exclusion. That, however, is not the case. Our research has revealed that the "sudden and accidental" exception has been interpreted to have a temporal meaning by the state Supreme Courts of Delaware, Florida, Idaho, Iowa, Maryland, Massachusetts, Michigan, Minnesota, Montana, New York, North Carolina, Ohio, Oklahoma, Utah and Wyoming. Other states, however, have construed the "sudden and accidental" exception in favor of coverage for gradual pollution, either by finding the word "sudden" to be ambiguous or by estopping insurers from denying coverage.

We note that "'[u]nder our law, the terms of an insurance policy are to be construed according to the general rules of contract construction. See, e.g., Weingarten v. Allstate Ins. Co., 169 Conn. 502, 509-10, 363 A.2d 1055 [(1975), overruled in part on other grounds, Streitweiser v. Middlesex Mutual Assurance Co., 219 Conn. 371, 593 A.2d 498 (1991)]; A. M. Larson Co. v. Lawlor Ins. Agency, Inc., 153 Conn. 618, 622, 220 A.2d 32. The determinative question is the intent of the parties, that is, what coverage the . . . [plaintiff] expected to receive and what the defendant was to provide, as disclosed by the provisions of the policy. Marcolini v. Allstate Ins. Co., 160 Conn. 280, 283, 278 A.2d 796.'" Heyman Associates No. 1 v. Ins. Co. of Pennsylvania, 231 Conn. 756, 769-70, 653 A.2d 122 (1995).

"`[E]ach and every sentence, clause, and word of a contract of insurance should be given operative effect. Since it must be assumed that each word contained in an insurance policy is intended to serve a purpose, every term will be given effect if that can be done by any reasonable construction. . . .'" Hansen v. Ohio Casualty Ins. Co., 239 Conn. 537, 548, 687 A.2d 1262 (1996), quoting 2 G. Couch, Insurance (3d Ed. 1995) c. 22, § 22.43, pp. 22-90 through 22-92. The exception to the pollution exclusion is expressed in conjunctive terms. For a discharge to be a covered event under the policy, it must be both sudden and accidental. If one or the other of these conditions is absent, then the discharge is not a covered incident.

We are assisted in our interpretation of the term "sudden" by reference to the dictionary. "To ascertain the commonly approved usage of a word, it is appropriate to look to the dictionary definition of the term. . . . State v. Rivera, 250 Conn. 188, 200 n. 12, 736 A.2d 790 (1999)." (Internal quotation marks omitted.) Gartrell v. Dept. of Correction, 259 Conn. 29, 41 n. 13, 787 A.2d 541 (2002). In 1970, when the pollution exclusion was adopted, "sudden" was defined as follows: "1. Happening without warning; unforeseen. 2. Characterized by hastiness; abrupt; rash. 3. Characterized by rapidity; quick; swift." The American Heritage Dictionary of the English Language (1969). "1. [H]appening, coming, made, or done quickly, without warning, or unexpectedly . . . 2. occurring without transition from the previous form, state, etc.; abrupt. . . ." The Random House Dictionary of the English Language (1966).

We acknowledge that, the word sudden can be used to describe the unexpected nature, as well as abrupt onset, of the event being described. A "sudden turn in the road" is described as such, because the driver coming upon it does not expect that the road will curve. It is an unexpected curve. Yet, it is also properly sudden because the driver is forced into an abrupt confrontation with the bend in the road as a result of the driver's speed. It would not be a "sudden turn in the road" if, instead of driving it, one approached the curve while walking. Thus, we agree that while sudden generally describes the unexpected nature of an event, it is also often used when the speaker intends to describe a situation that appears in its present state in an abrupt or quickly occurring manner.

While the word may connote either state — or even a combination of both an unexpected and a temporally abrupt quality — in a given context, what matters for our purposes is what the word was intended to mean in the context of the "sudden and accidental" exception to the pollution exclusion. We conclude that the word sudden was included in these policies so that only a temporally abrupt release of pollutants would be covered as an exception to the general pollution exclusion.

In the context of these policies, it makes sense to include, within the definition of sudden, the temporally abrupt quality of the word. This becomes evident through the juxtaposition of the word "sudden" with the word "accidental" in the exception to the pollution exclusion. We agree with the statement by other appellate courts: "The very use of the words sudden and accidental . . . reveal a clear intent to define the words differently, stating two separate requirements. Reading sudden in its context, i.e. joined by the word and to the word [accident], the inescapable conclusion is that sudden, even if including the concept of unexpectedness, also adds an additional element because unexpectedness is already expressed by accident[al]. This additional element is the temporal meaning of sudden, i.e. abruptness or brevity. To define sudden as meaning only unexpected or unintended, and therefore as a mere restatement of accidental, would render the suddenness requirement mere surplusage. Mustang Tractor Equip[ment] Co. v. Liberty Mut[ual] Ins. Co., 76 F.3d 89, 92 (5th Cir. 1996). . . ." (Citation omitted; internal quotation marks omitted.) SnyderGeneral Corp. v. Great American Ins. Co., 928 F. Sup. 674, 680 (N.D.Tex. 1996), aff'd, 133 F.3d 373 (5th Cir. 1998). We conclude, therefore, that, as used in these policies, the term "sudden" requires that the release in question occurs abruptly or within a short amount of time.

In urging that we construe sudden to mean only unexpected, without any temporal quality, the plaintiff relies on this court's prior interpretation of the term "sudden" in an entirely different context. In Verdon v. Transamerica Ins. Co., 187 Conn. 363, 368, 446 A.2d 3 (1982), we stated: "Although `sudden' may also imply quickness, its primary meaning is unexpected, `happening without previous notice or very brief notice.' Webster, Third New International Dictionary." This previous statement regarding the meaning of sudden does not assist us in understanding the intended use of the word in the context of the pollution exclusion.

In Verdon, wherein we interpreted Connecticut's direct action statute, the issue was whether "a decrease in the value of an estate caused by legal malpractice is `damage to the property of any person' for purposes of General Statutes § 38-175 [now § 38a-321]. . . ." Verdon v. Transamerica Ins. Co., supra, 187 Conn. 364. The trial court had concluded that the plaintiff's financial loss, as administrator of an estate and caused through the attorney's negligence, was not damage to property under the direct action statute. Id., 370. In making this determination, the trial court interpreted the term "casualty" as used in the statute. Id., 365-66. The trial court, relying on Black's Law Dictionary, interpreted the term "casualty" to mean "an accident; event due to sudden, unexpected, or unusual cause . . . [a] loss . . . by fire, shipwreck, lightning, etc." (Emphasis added; internal quotation marks omitted.) Id., 366. The trial court concluded that since a loss in the value of an estate through an attorney's negligence is not this type of casualty, the direct action statute was not applicable. Id.

On appeal in Verdon, we interpreted the term "casualty" to mean "`an unfortunate occurrence' synonymous with `mischance.' Webster, Third New International Dictionary." Verdon v. Transamerica Ins. Co., supra, 187 Conn. 368. But, even though we determined that this was the more appropriate definition of casualty, we nevertheless also stated that even under the trial court's more narrow definition of casualty as "an accident; event due to sudden, unexpected, or unusual cause"; (internal quotation marks omitted) id., 366; damage to the net worth of an estate would still qualify as a casualty under the statute. Id., 368.

Thus, our statement, "[a]lthough `sudden' may also imply quickness, its primary meaning is unexpected"; id.; was made in the context of our articulation of how the loss of value in the estate was a casualty for purposes of the direct action statute. The loss in Verdon — the loss of value in the estate — was still a casualty, despite reliance on the use of the word "sudden" to define casualty, because in that context, we concluded that sudden did not necessarily require that the loss occur quickly. Id. In Verdon, we were faced with an interpretation of casualty in terms of the direct action statute. The language we used in that case to interpret sudden is not controlling in our interpretation of the liability policies at issue in the present case. In fact, in Verdon, we specifically limited our interpretation of casualty to its use in § 38-175, now § 38a-321, and suggested that in another context, it might have an alternative meaning. Id.

We are persuaded, further, that an understanding of sudden as a temporally dependent term, which requires that the release occur in a rapid or abrupt manner, makes sense within the larger context of these liability policies. As the New York Court of Appeals noted in analyzing the "sudden and accidental" exception: "[T]he exception exists in the context of an insurance contract which is universally recognized as intended to exclude damage from persistent pollution from the policy's expansive basic coverage of `occurrence' which includes `continuous or repeated exposure to conditions.'" Northville Industries Corp. v. National Union Fire Ins. Co. of Pittsburgh, PA., 89 N.Y.2d 621, 633, 679 N.E.2d 1044, 657 N.Y.S.2d 564 (1997). In other words, a continuous or repeated event that would otherwise qualify for coverage under the policy as an "occurrence," is exempted if the event is a discharge of pollutants. The "sudden and accidental" exception was added, it seems to us, to allow coverage for such discharges, not, as the plaintiff would have it, for unexpected, continuous or repeated events, but if they happen to occur abruptly.

We find it untenable to construe the term "sudden," as the plaintiff would have us, as an event whose only requirement is that it be unexpected to the observer. Other courts agree. "We cannot reasonably call `sudden' a process that occurs slowly and incrementally over a relatively long time, no matter how unexpected or unintended the process." Shell Oil Co. v. Winterthur Swiss Ins. Co., 12 Cal.App.4th 715, 754, 15 Cal.Rptr.2d 815 (1993). "Try as I will, I cannot wrench the words `sudden and accidental' to mean `gradual and accidental,' which must be done in order to provide coverage in this case." Dimmitt Chevrolet, Inc. v. Southeastern Fidelity Ins. Corp., 636 So.2d 700, 706 (Fla. 1993) (Grimes, J., concurring). "No use of the word `sudden' . . . could be consistent with an event which happened gradually or over an extended time, nor could it be consistent with an event which was anticipated or predictable." American Motorists Ins. Co. v. General Host Corp., 667 F. Sup. 1423, 1428 (D.Kan. 1987), aff'd, 946 F.2d 1482 (10th Cir.), vacated in part and remanded, 946 F.2d 1489 (10th Cir. 1991), on remand, 919 F. Sup. 1506 (D.Kan. 1996). "It seems incongruous . . . to think of a leakage or seepage that occurs over many years as happening suddenly." Board of Regents of the University of Minnesota v. Royal Ins. Co. of America, 517 N.W.2d 888, 892 (Minn. 1994).

The plaintiff argues, in the alternative, that even if "`sudden' can be said to mean objectively `quick' or `abrupt,' it is ambiguous on its face." (Emphasis in original.) The plaintiff suggests, therefore, that we should consult insurance industry drafting history, which, the plaintiff argues, leads to the conclusion that the industry knew that the "sudden and accidental" exception was not intended to restrict coverage to quick or rapidly occurring discharges. Because we find the language in the pollution exclusion to be clear and unambiguous, we find no occasion to refer to this drafting history.

As we previously have stated: "If the words in the policy are plain and unambiguous the established rules for the construction of contracts apply, the language, from which the intention of the parties is to be deduced, must be accorded its natural and ordinary meaning, and courts cannot indulge in a forced construction ignoring provisions or so distorting them as to accord a meaning other than that evidently intended by the parties." (Internal quotation marks omitted.) Hammer v. Lumberman's Mutual Casualty Co., 214 Conn. 573, 583, 573 A.2d 699 (1990). We note, further, that a "court will not torture words to import ambiguity, where the ordinary meaning leaves no room for ambiguity and words do not become ambiguous simply because lawyers or laymen contend for different meanings." Downs v. National Casualty Co., 146 Conn. 490, 494-95, 152 A.2d 316 (1959). "The fact that the parties advocate different meanings of the exclusion clause does not necessitate a conclusion that the language is ambiguous." (Internal quotation marks omitted.) Kelly v. Figueiredo, 223 Conn. 31, 37, 610 A.2d 1296 (1992). "There is no presumption that language in insurance contracts is inherently ambiguous. Only if the language manifests some ambiguity do we apply the rule that ambiguous insurance contracts are to be construed in favor of insureds and to provide coverage." McGlinchey v. Aetna Casualty Surety Co., 224 Conn. 133, 137, 617 A.2d 445 (1992), superseded by statute, Gohel v. Allstate Ins. Co., 61 Conn. App. 806, 811-15, 768 A.2d 950 (2001).

We also emphasize that the word "sudden" is not ambiguous simply because the dictionary includes within its definitions of the word, that it may, in certain circumstances, include a sense that the event being described occurred unexpectedly. "[T]he existence of more than one dictionary definition is not the sine qua non of ambiguity. If it were, few words would be unambiguous." New Castle v. Hartford Accident Indemnity Co., 933 F.2d 1162, 1193 (3d Cir.), on remand, 778 F. Sup. 812 (D.Del. 1991). The important question before us is the meaning of the word as used in these policies. We find that this "language is clear and plain, something only a lawyer's ingenuity could make ambiguous." American Motorists Ins. Co. v. General Host Corp., supra, 667 F. Sup. 1429. Because we will not create ambiguity where none exists, reference to extrinsic documentation such as drafting history is inappropriate. See Heyman Associates No. 1 v. Ins. Co. of Pennsylvania, supra, 231 Conn. 781.

Finally, the plaintiff argues that even if we conclude that the word "sudden" is not ambiguous, we should apply the doctrine of regulatory estoppel, as articulated by the Supreme Court of New Jersey in Morton International, Inc. v. General Accident Ins. Co. of America, 134 N.J. 1, 629 A.2d 831 (1993), cert. denied, 512 U.S. 1245, 114 S.Ct. 2764, 129 L.Ed.2d 878, rehearing denied, 512 U.S. 1277, 115 S.Ct. 25, 129 L.Ed.2d 923 (1994). In Morton International, Inc., the court concluded that the term "sudden" has a temporal meaning, which requires that the event being described begin abruptly or without prior notice or warning. Id., 29. The court, however, found that industry representatives had misled insurance regulators in 1970 into believing that the addition of the pollution exclusion was merely a clarification of, rather than a reduction in, coverage. Id. Rather than enforce the exclusion as written, the court interpreted the policy to provide the same level of coverage as that under prepollution exclusion policies, except that no coverage would be provided for an intentional discharge of pollutants. Id., 78. The court in Morton International, Inc., reached this conclusion, in part, because New Jersey "has long recognized the doctrine that an insurer who misrepresents the coverage of, or the exclusions from, an insurance contract to the insured's detriment may be estopped from denying coverage on a risk not covered by the policy." Id., 74.

We do not agree that regulatory estoppel should apply in the present case. We note that the doctrine has been rejected by several courts that have addressed it since Morton International, Inc. In addition, regulatory estoppel appears to be another attempt to examine extrinsic evidence on a term that we already have concluded is clear and unambiguous.

Furthermore, in Connecticut, the doctrine of equitable estoppel, which we deem to be somewhat analogous to the plaintiff's argument regarding regulatory estoppel, requires proof of two essential elements: "[First] the party against whom estoppel is claimed must do or say something calculated or intended to induce another party to believe that certain facts exist and to act on that belief; and [second] the other party must change its position in reliance on those facts, thereby incurring some injury." (Internal quotation marks omitted.) Connecticut National Bank v. Voog, 233 Conn. 352, 366, 659 A.2d 172 (1995).

There is no evidence in this case that, in 1970, insurance regulators in Connecticut were misled by industry representations regarding the meaning of the pollution exclusion. In fact, statements by regulators indicate that they understood that the prepollution exclusion policies similarly excluded claims for gradual pollution and that they also understood the term "sudden" to have a temporal meaning. Even if we were to assume that Connecticut regulators were misled, and that the plaintiff could produce evidence of this fact, a claim for estoppel would fail because the plaintiff cannot assert as its injury any change in position undertaken by insurance regulators purportedly as a result of industry misrepresentations.

In conclusion, we hold that the term "sudden," as used in these policies, requires that the release in question occur in a rapid or otherwise abrupt manner. The release of pollutants over an extended period of time cannot qualify as "sudden" for purposes of the exception to the pollution exclusion in these policies.

II

The plaintiff argues next that, even if the term "sudden" requires that the release of pollutants be abrupt, the trial court improperly granted summary judgment for the defendants because a genuine issue of material fact exists regarding whether any of the releases in this case were "sudden," as we have defined that term. More specifically, the plaintiff urges us to conclude that the trial court improperly disregarded the existence of facts in the record that indicate that the contamination at Highland and at Anchor was caused by the abrupt release of pollutants. We disagree with the plaintiff.

Before addressing the parties' arguments, we set forth the applicable standard of review. "The standards governing our review of a trial court's decision to grant a motion for summary judgment are well established. Practice Book § 384 [now § 17-49] provides that summary judgment shall be rendered forthwith if the pleadings, affidavits and any other proof submitted show that there is no genuine issue as to any material fact and that the moving party is entitled to judgment as a matter of law. . . . In deciding a motion for summary judgment, the trial court must view the evidence in the light most favorable to the nonmoving party. . . . The party seeking summary judgment has the burden of showing the absence of any genuine issue [of] material facts which, under applicable principles of substantive law, entitle him to a judgment as a matter of law . . . and the party opposing such a motion must provide an evidentiary foundation to demonstrate the existence of a genuine issue of material fact." (Citations omitted; internal quotation marks omitted.) Doty v. Mucci, 238 Conn. 800, 805-806, 679 A.2d 945 (1996).

We emphasize the important point, that "[a]lthough the party seeking summary judgment has the burden of showing the nonexistence of any material fact . . . a party opposing summary judgment must substantiate its adverse claim by showing that there is a genuine issue of material fact together with the evidence disclosing the existence of such an issue. . . . It is not enough, however, for the opposing party merely to assert the existence of such a disputed issue. Mere assertions of fact . . . are insufficient to establish the existence of a material fact and, therefore, cannot refute evidence properly presented to the court [in support of a motion for summary judgment]." (Internal quotation marks omitted.) Home Ins. Co. v. Aetna Life Casualty Co., 235 Conn. 185, 202, 663 A.2d 1001 (1995).

The core of this issue is disagreement among the parties concerning who should bear the burden of producing evidence regarding the pollution releases. The plaintiff argues that the defendants, as summary judgment movants, had the burden of showing the absence of a sudden and accidental release at the sites. The defendants argue that the plaintiff did not produce any relevant evidence that an abrupt release of pollutants occurred at the sites and, therefore, failed to establish a genuine issue of material fact concerning whether there was a "sudden" release of pollutants, as we have defined that term. We agree with the defendants.

In the context of these comprehensive general liability policies, the burden properly rests with the insured to prove that the "sudden and accidental" exception is applicable. In this regard, we agree with the reasoning of the New York Court of Appeals: "Shifting the burden to establish the exception conforms with an insured's general duty to establish coverage where it would otherwise not exist, provides the insured with an incentive to strive for early detection that it is releasing pollutants into the environment and appropriately places the burden of proof on the party having the better and earlier access to the actual facts and circumstances surrounding the discharge. . . ." (Citations omitted.) Northville Industries Corp. v. National Union Fire Ins. Co. of Pittsburgh, PA., supra, 89 N.Y.2d 634. We also note that "when a policy contains an exception within an exception, the insurer need not negative the internal exception; rather, the plaintiff must show that the exception from the exemption from liability applies." 19 G. Couch, Insurance (2d Ed. 1983) § 79:385, p. 338. Other courts similarly have placed this burden on the insured.

We further agree that "[o]nce an insurer has satisfied its burden of establishing that the underlying complaint alleges damages attributable to the discharge or release of a pollutant into the environment, thereby satisfying the basic requirement for application of the pollution coverage exclusion provision, the burden shifts to the insured to demonstrate a reasonable interpretation of the underlying complaint potentially bringing the claims within the sudden and accidental discharge exception to exclusion of pollution coverage, or to show that extrinsic evidence exists that the discharge was in fact sudden and accidental." Northville Industries Corp. v. National Union Fire Ins. Co. of Pittsburgh, PA., supra, 89 N.Y.2d 634.

In the present case, the defendants met their burden of establishing the initial applicability of the pollution exclusion. First, the plaintiff's revised complaint for declaratory judgment contains allegations that the pollution at Highland and Anchor was related to the release of contaminants during and since 1966. Second, the defendants' respective answers assert that the pollution exclusion contained in the applicable policies effectively deny coverage to the plaintiff.

At that point, the burden shifted to the plaintiff to establish that either allegations in the complaint reasonably could be interpreted as bringing the claim under the sudden and accidental exception, or that extrinsic evidence exists of an abrupt pollution discharge or discharges. The plaintiff's complaint contains no allegations that an abrupt release of pollutants in fact occurred. We turn, therefore, to whether the plaintiff established extrinsic evidence of an abrupt discharge or discharges.

We have examined the extensive documentation submitted by the plaintiff in its opposition to the defendants' motion for summary judgment to ascertain if the plaintiff produced evidence of an abrupt release of pollutants at the Highland and Anchor sites. We conclude that the trial court correctly determined that the evidence presented by the plaintiff in opposition to the defendants' motion for summary judgment does not establish the existence of a genuine issue of material fact as to whether the discharges were "sudden," as we have defined that term.

A The Highland Site

On appeal, the plaintiff argues that the contamination at Highland could have been the result of an abrupt release of TCE caused by a malfunction in the degreasing machine. The plaintiff asserts that this type of malfunction "would result in a large release of TCE to the lagoon equivalent to punching a hole in the degreaser and allowing 500 gallons of TCE to pour out." We can find no evidence submitted by the plaintiff to suggest that an event like this had occurred. The plaintiff's conclusion rests, we conclude, on faulty logic. Rather than present evidence that such an abrupt release had occurred, the plaintiff cited evidence to show that Highland's normal operating procedures would not result in the release of TCE to the lagoon. In other words, the plaintiff believes that it has established the fact of a separator malfunction — an abrupt release — by showing the absence of any other means by which TCE could have leaked to the lagoon.

We are not convinced. As the extensive documentation submitted to this court confirms, the nature of this contamination is a highly complex matter. We cannot agree that the several ways the plaintiff acted to contain its use of TCE combined with the fact that TCE now exists in the groundwater at Highland, results in the conclusion that there must have been a separator malfunction. The plaintiff had the burden to establish the existence of facts purporting to show an abrupt release of pollutants and failed to carry this burden. The trial court correctly determined that no genuine issue of material fact existed regarding a sudden release of pollutants at Highland.

B The Anchor Site

We conclude that the trial court properly determined that no genuine issue of material fact exists regarding a sudden release of pollutants at Anchor. The plaintiff claims that an oil spill in 1971 "explains the source of the TPH" in the loading dock area at the Anchor facility. As evidence for this claim, the plaintiff cites to documentation from an Anchor safety committee meeting on September 16, 1971. The record of the meeting refers to an oil spill at the Anchor facility: "Back yard lot — Oil spill from tank truck parked — creating hazardous condition — this being corrected through construction." In the October 28, 1971 safety committee minutes, there is another reference to the spill: "Cement pads installed to correct oil spill from tank truck. Corrected." (Emphasis in original.) The spill may have been the result of a hose break from a truck that was pumping waste oil out from the tank. The plaintiff argues that this evidence sufficiently places a material fact at issue regarding whether a sudden release of pollutants occurred at Anchor. We disagree.

It is undisputed that an oil spill occurred at the Anchor facility in 1971. We agree with the trial court that this event, however, does not create a genuine issue of material fact so as to prevent summary judgment for the defendants. The important question before us is not whether an oil spill occurred, but whether the evidence of such a spill properly places at issue a material fact regarding whether this spill constitutes a sudden event likely to have contributed to the environmental contamination at Anchor. We conclude that it does not.

"[T]he `genuine issue' aspect of summary judgment requires the parties to bring forward before trial evidentiary facts, or substantial evidence outside the pleadings, from which the material facts alleged in the pleadings can warrantably be inferred." United Oil Co. v. Urban Redevelopment Commission, 158 Conn. 364, 378-79, 260 A.2d 596 (1969). "A material fact has been defined adequately and simply as a fact which will make a difference in the result of the case." (Internal quotation marks omitted.) Hammer v. Lumberman's Mutual Casualty Co., supra, 214 Conn. 578. The plaintiff submitted no evidence regarding the size of the 1971 oil spill, the duration of the event or the specific impact that this spill had on the state of contamination at Anchor. According to the defendants' expert, the 1971 oil spill "resulted in at most, `de minimus' environmental contamination and did not substantially contribute to the well-documented environmental degradation at the Anchor . . . [site]. The environmental contamination that has been documented at the . . . Anchor [site] resulted from the hazardous waste handling and disposal practices over a course of many years during the ordinary course of business operations."

The plaintiff submitted an affidavit from its own expert, B. Tod Delaney, wherein he stated: "Remediation, specifically the removal of the plating room floor and the excavation of metals-contaminated soils was required at the Anchor facility to address the former plating area. In addition, petroleum-contaminated soil resulting from an oil spill in the loading dock area was remediated. Incidental spills as a result of day-to-day operations did not drive these required remediation activities." The plaintiff submits that this statement creates a genuine issue of material fact regarding whether an abrupt release of pollutants occurred at the Anchor facility. We disagree.

This conclusory statement does not put a material fact at issue regarding an abrupt release at Anchor. "Although an affidavit by an expert may be considered in opposition to a motion for summary judgment, conclusory affidavits, even from expert witnesses, do not provide a basis on which to deny such motions. 27A Fed. Proc., L.Ed. § 62:717 (1996)." Morales v. Kagel, 58 Conn. App. 776, 781, 755 A.2d 915 (2000). Delaney's statement that "petroleum-contaminated soil resulting from an oil spill in the loading dock area was remediated" provides only a conclusion: that, in Delaney's opinion, the soil was contaminated as a result of the oil spill. What is missing, however, are salient facts linking the 1971 oil spill to the petroleum contamination in this area of the Anchor facility. It is insufficient to merely cite the historical fact of a spill and the present state of contamination, and provide no facts linking the two. Because, as we established earlier in this opinion, the plaintiff properly had the burden to establish the existence of these facts, it cannot avoid summary judgment for the defendants by the mere assertion of a conclusion regarding the cause of the contamination at Anchor.

Despite the plaintiff's claim that its Anchor consultant, W. Terry Robinson, "testified that the source of the TPH . . . may have been oil spilled at one time along the loading dock wall," our review of this testimony reveals merely speculation regarding the source of the contamination and does not link the 1971 spill to the recent existence of TPH at Anchor. In fact, Robinson admitted, in his deposition, that his theory regarding the contamination being caused by an oil spill was speculative.

We acknowledge that "[o]n summary judgment the inferences to be drawn from the underlying facts . . . must be viewed in the light most favorable to the party opposing the motion." (Internal quotation marks omitted.) Matsushita Electric Industrial Co., Ltd. v. Zenith Radio Corp., 475 U.S. 574, 587, 106 S.Ct. 1348, 89 L.Ed.2d 538, on remand sub nom. In re Japanese Electronic Products Antitrust Litigation, 807 F.2d 44 (3d Cir. 1986). A party may not, however, "rely on mere speculation or conjecture as to the true nature of the facts to overcome a motion for summary judgment." Knight v. U.S. Fire Ins. Co., 804 F.2d 9, 12 (2d Cir. 1986), cert. denied, 480 U.S. 932, 107 S.Ct. 1570, 94 L.Ed.2d 762 (1987). The evidence of the 1971 oil spill requires that we engage in speculation as to the connection between this event and the contamination at Anchor. We decline to join in this endeavor and conclude that the plaintiff has failed to demonstrate that the 1971 oil spill serves to create a genuine issue of material fact regarding an abrupt release at Anchor.

A remand to the trial court for further findings on this issue would serve no substantive purpose, for we can assume that if additional information exists regarding this oil spill, the parties would have discovered it and cited it to the trial court during the proceedings on the motion for summary judgment. We cannot conclude that a jury reasonably could find that the fact of this 1971 oil spill, without more, would be sufficient to implicate coverage under the defendants' comprehensive general liability policies.

We conclude, therefore, that the trial court properly granted the defendants' motion for summary judgment since no genuine issues of material fact exist regarding whether sudden releases of pollutants occurred at the Highland and Anchor facilities.

III

The plaintiff's final claim is that the personal injury provisions of the defendants' policies entitle it to coverage for these environmental claims and, therefore, the trial court improperly granted summary judgment for the defendants on this issue. More specifically, the plaintiff argues that the environmental contamination constitutes "`wrongful entry or eviction, or other invasion of the right of private occupancy'" and is therefore properly within the scope of the personal injury provisions of these policies. In other words, the plaintiff asserts that the groundwater pollution that has migrated to adjacent properties, has subjected the plaintiff to potential claims charging it with "`wrongful entry or eviction, or other invasion of the right of private occupancy.'" We conclude that the trial court properly determined that the personal injury provisions of these policies do not provide coverage for these claims.

The comprehensive general liability policies in this case provide coverage for personal injury as well as property damage. Personal injury is defined in the Federal policy, effective 1975, to mean: "1. [B]odily injury or; 2. injury sustained by any person or organization arising out of the commission, during the policy period and within the territorial limits, of one or more of the following offenses: a. false arrest, detention or imprisonment, or malicious prosecution; b. the publication or utterance of a libel or slander or of other defamatory or disparaging material, or a publication or utterance in violation of an individual's right of privacy; or c. wrongful entry or eviction, or other invasion of the right of private occupancy." (Emphasis added.)

We do not agree that the personal injury provisions of these policies were meant to cover damages for pollution related claims. As we already have indicated, the policies unequivocally eliminate from coverage property damage that is the result of the release of pollutants, unless such release is sudden and accidental. We can discern no reasonable rationale for excluding from coverage such a claim under the property damage's pollution exclusion, but permitting an insured to proceed under the personal injury provisions in order to lay claim to reimbursement. "[I]t is hardly a fair reading of the policy to permit property and environmental claims, under the guise of personal injury, where the pollution exclusion clearly protects the insurer from precisely such claims." (Internal quotation marks omitted.) Lakeside Non-Ferrous Metals, Inc. v. Hanover Ins. Co., 172 F.3d 702, 705 (9th Cir. 1999). Allowing the plaintiff "to recast its claim under the personal injury provision would render . . . the pollution exclusion a dead appendage to the policy." Id., 706. The policies clearly were intended to exclude costs for pollution related claims, unless sudden and accidental, and we will not stretch the personal injury provisions to cover a claim that another area of the policy clearly excludes.

We also conclude that the personal injury provisions were intended to reach only intentional acts by the insured, which obviously would not include the pollution at issue in this case. We agree with the New York Court of Appeals' interpretation of the personal injury provision: "[C]overage under the personal injury endorsement provision in question was intended to reach only purposeful acts undertaken by the insured or its agents. Evidence that only purposeful acts were to fall within the purview of the personal injury endorsement is provided, in part, by examining the types of torts enumerated in the endorsement in addition to wrongful entry, eviction and invasion: false arrest, detention, imprisonment, malicious prosecution, defamation and invasion of privacy by publication. Read in the context of these other enumerated torts, the provision here could not have been intended to cover the kind of indirect and incremental harm that results to property interests from pollution." (Emphasis added.) Columbia v. Continental Ins. Co., 83 N.Y.2d 618, 627-28, 634 N.E.2d 946, 612 N.Y.S.2d 345 (1994).

For the foregoing reasons, we conclude that the trial court correctly granted summary judgment for the defendants on the personal injury issue.