Weathermark Investments (“Weather-mark”), operator of a home-heating oil business, appeals from a district court judgment declaring that Utica Mutual Insurance Company (“Utica”) is under no contractual obligation to indemnify its insureds for costs incurred in cleaning up a fuel oil spill on Weathermark’s property. Utica in turn cross-appeals from a district court ruling entitling Utica’s insureds to indemnification for nonremediation “property damages” caused by the oil contamination. We affirm the district court judgment.
I
BACKGROUND
In 1994, Weathermark hired Hall Equipment, Inc. (“Hall”), to repair a fuel pump. Due to allegedly negligent repairs performed by Hall, more than 3,000 gallons of fuel oil spilled at the Weathermark oil storage facility, some of which migrated to an adjacent property occupied by ELAW Corporation (“ELAW”). The Massachusetts Department of Environmental Protection (DEP) issued a notice of responsibility, requiring Weathermark to undertake “immediate response actions.”
In due course, Weathermark and ELAW brought a state court action against Hall and its president, William Riddell, for more than $2 million in damages, including (i). their respective costs in cleaning up the oil spill; (ii) various permanent property damages due to the spill; and (iii) loss of business income and profits. As Weathermark and ELAW have settled their cross-claims and ELAW has assigned its rights against Hall and Rid-dell to Weathermark, we advert simply to Weathermark as the party demanding damages.
The Commercial General Liability (“CGL”) policy issued by Utica insured Hall and Riddell against all “sums that [they] become[ ] legally obligated to pay as damages because of ‘bodily injury’ or ‘property damage’ to which this insurance applies,” subject, inter alia, to the following coverage exclusion:
(1) “Bodily injury” or “property damage” arising out of the actual, alleged or threatened discharge, dispersal, seepage, migration, release, or escape of pollutants....
(2) [a]ny loss, cost or expense arising out of any:
(a) Request, demand or order that any insured or others test for, monitor, clean up, remove, contain, treat, detoxify or neutralize, or in any way respond to, or assess the effects of pollutants; or
(b) Claim or suit by or on behalf of a governmental authority for damages because of testing for, monitoring, cleaning up, removing, containing, treating, detoxifying or neutralizing, or in any way responding to, or assessing the effects of pollutants.
CGL policy exclusion ¶ f.
Utica commenced the instant action against Hall, Weathermark, and ELAW in federal district court, demanding a judicial declaration that policy exclusion f(2), supra, rules out any contractual responsibility to indemnify Hall and Riddell for whatever damages ultimately may be due *80 Weathermark in the underlying state-court actions. 1
In due course, the district court entered partial summary judgment for Utica, declaring that ¶ f(2)(a) forecloses coverage of any cleanup costs for which Hall and Rid-dell are required to reimburse Weather-mark and ELAW due to the oil spill,
i.e.,
the so-called environmental “response costs.”
Utica Mut. Ins. Co. v. Hall Equip., Inc.,
II
DISCUSSION
Under Massachusetts law, insurance-contract interpretations pose legal issues for resolution by the court, and, absent ambiguity, insurance contracts are to be enforced in accordance with their plain language.
See Somerset Savs. Bank v. Chicago Title Ins. Co.,
A. The Weathermark Appeal
The district court determined that, if successful, the state-court claim Weather-mark brought for reimbursement of its past and future response costs would constitute an “expense arising out of a[ ] ... [rjequest, demand or order that any insured or others ... in any way respond to ... the effects of pollutants,” Policy ¶ f(2)(a); and, consequently, that any recovery realized by Weathermark in its lawsuit would be excluded from coverage under the CGL policy issued to Hall and Riddeh.
Weathermark maintains on appeal that the district court erred in faffing to infer the meaning of Policy ¶ f(2)(a) through reference to ¶ f(2)(b), which excludes from coverage “[a]ny loss, cost or expense arising out of any ... [cjlaim or suit by or on behalf of a governmental authority for damages because of testing for, monitoring, cleaning up, removing, containing, treating, detoxifying or neu *81 tralizing, or in any responding to, or assessing the effects of pollutants.” Adverting to the familiar maxim that general contract language normally must yield to more particular language, Weathermark contends that (i) the undefined phrase “[r]equest, demand or order,” appearing in ¶ f(2)(a), is too general to denote a lawsuit, and (ii) since ¶ f(2)(b) explicitly addresses the subject of lawsuits, Utica needed to specify in ¶ f(2)(b) that both governmental and private-party lawsuits were to be excluded from coverage.
The merits of these contentions need not be addressed, however, since Weather-mark failed to raise them below,
see Utica Mut. Ins. Co.,
Similarly, since the remaining arguments Weathermark asserts on appeal were never raised below, they are deemed waived. See id. Weathermark now argues, on public policy grounds, that the interpretation given ¶ f(2)(a) by the district court would enable Utica to exclude coverage based on the mere fortuity as to whether the third party seeking reimbursement was served with a “request,” such as a notice of responsibility issued by an environmental enforcement agency. Weathermark adds that its theory was “apparently recognized” in the memorandum submitted in support of Utica’s motion for partial summary judgment. Be that as it may, Weathermark presented no argumentation on this theory in opposition to Utica’s motion for partial summary judgment. Consequently, the district court never reached it. 3 The raise-or- *82 waive rule serves to forfend against “sandbagging,” viz., reserving legal theories for initial use on appeal.
Finally, Wéathermark maintains, were we to declare the pollution exclusion ambiguous, we should consider “extrinsic evidence” as to the parties’ intent,
see, e.g.,
1 Gibson & McLendon,
Commercial Liability Insurance,
Annotated Policy, at V.D. (1988), even though Weathermark concedes, as it must, that it never raised its “extrinsic evidence” argument below. Nonetheless, Weathermark urges, since appellate interpretations of insurance contracts are plenary,
see Ekco Group, Inc.,
B. The Utica Cross-Appeal
The district court determined that ¶ f(2)(a) neither encompasses the “non-remediation” damages incurred by Weath-ermark, nor any costs unrelated to actual removal of the spilled oil from the Weath-ermark and ELAW properties, such as permanent property damages, diminution in the fair market value of the properties, or losses of rental or through-put income. Utica asserts in its cross-appeal that the district court erred in three respects. Its conclusions may be summarized as follows:
First, these nonremediation damages nonetheless constituted a “loss, cost or expense arising out of a[ ] ... demand ... that [Hall] ... in any way respond to ... the effects of pollutants,” since such non-remediation damages arose from the Weathermark lawsuit and would not have been incurred but for the oil spill. Second, the case law uniformly supports the contract interpretation advanced by Utica. Third, ¶^2)^) notwithstanding, the diminution in the fair market value of property and the loss of rental or through-put income are independently excluded from coverage since the definition of “property damage” contained in the CGL policy— viz., “physical injury to tangible property” or “loss of use of tangible property” plainly does not encompass these types of intangible economic losses. We address these contentions in turn.
First, irresolvably ambiguous
coverage exclusions
are to be strictly construed against the insurer.
See Preferred Mut. Ins. Co.,
Contrary to the contention advanced by Utica, the term “demand,” appearing in ¶ f(2)(a), does not necessarily contemplate the
entire
lawsuit Weathermark filed in state court. Rather, “demand” may simply refer to
an individual claim
asserted in a lawsuit; here, the claim for reimbursement of remediation costs.
See supra
note 2. When real property becomes contaminated by a pollutant, two distinct types of damages frequently result. First, remediation damages obtain in the form of the expense incurred in the
containment and removal of the pollutant,
to the extent practicable, so as to return the property to
*83
its preexisting environmental condition. Thus, in the parlance of environmental law, costs incurred in rehabilitating a contaminated property to its preexisting environmental condition typically are referred to as
“response
costs.”
See, e.g.,
Mass. Gen. Laws. Ann. ch. 21E, § 4 (“Response actions.”). Accordingly, for example, normally the notice of responsibility issued by the DEP would not additionally demand that the remediating party remediate other property damage caused by the contamination, unless it too posed an environmental threat. In the present case, even though the oil
in situ
itself constituted “property damage,”
see Hazen Paper Co. v. Fid. & Guar. Co.,
Thus, by employing the term “respond” in ¶ f(2)(a), the Utica pollution exclusion gave rise to an ambiguity, particularly since the preceding listing of activities pertained exclusively to remediation efforts— viz., testing or monitoring for, cleaning up, removing, or containing the pollutant. Compare Mass. Gen. Laws. Ann. ch. 21E, § 4 (“Response actions”), with id. § 5(a)(iii) (making responsible parties liable “to any person for damage to his real or personal property incurred or suffered as a result of such release or threat of release”).
Further, ¶ f(l) specifically excludes from coverage “
‘property damage
’ arising out of the actual ... discharge ... of pollutants,” yet lists only four circumstances in which the exclusion applies, none of which pertain to the insureds Hall and Riddell.
See Aldridge v. A.T. Cross Corp.,
Second, the unreported cases cited by Utica are either inapposite or unpersuasive.
4
For instance,
Manufacturers Gasket Co. v. Transcon.,
No. 93-3108 (6th Cir. Dec.6,1993), merely held that the pollution exclusion barred coverage for a private
*84
lawsuit seeking to recover “costs for pollutant cleanup.” The issue of nonremediation damages was never mentioned. In
Coal Heat v. United States Fidelity and Guaranty Co.,
Finally, we need not address the Utica contention that some of these nonremediation damages are excludible on the independent ground that the “property damage” definition contained in the insurance contract does not encompass these types of intangible economic losses. Nowhere in its motion for partial summary judgment did Utica urge this “separate and independent ground” for excluding coverage for this particular subset of nonremediation damages. Accordingly, its argument must be deemed waived.
See VanHaaren,
Since ¶ f(2)(a) is ambiguous as concerns any exclusion of nonremediation property damages, it is to be construed against the insurer which drafted the policy.
See Preferred Mut. Ins. Co.,
Affirmed. The parties are to bear their own costs.
Notes
. Although Utica’s complaint also sought a judicial declaration as to whether its CGL policy obligated it to defend Hall and Riddell in the underlying state court proceedings, it no longer presses this claim.
. Nor did the district court ruling constitute plain error.
See Ferrara & DiMercurio v. St. Paul Mercury Ins. Co.,
Second, although arguably the Utica pollution exclusion clause might have been more artfully drafted, we are required to "interpret policy language in accordance with the common meaning of the words used, from the viewpoint of a reasonable insured."
Davis v. Allstate Ins. Co.,
. Nor was there plain error. The district court ruled that Weathermark’s state-court
lawsuit
constituted the "request, demand, or order" which triggered the ¶ f(2)(a) pollution exclusion. As previously noted, Weathermark waived any appellate challenge to that ruling. Accordingly, it is immaterial whether the notice of responsibility which Weathermark received from the Massachusetts Department of Environmental Protection constituted a "request, demand, or order.”
See Smith v. Kmart Corp.,
. Normally, unpublished opinions are not to be cited.
See
1st Cir. Local R. 36.2(b)(2)(F);
United States v. Meade,
