SECTION “E”

ORDER AND REASONS

Before the Court is Hanover’s motion for partial summary judgment seeking a declaration that Hanover has no duty to defend Masse and no duty to defend Allied as an additional insured.1 For the reasons set forth below, the motion is DENIED.

*663BACKGROUND

A. State-Court Lawsuits

This is a consolidated action. The case originates from two personal-injury actions (“State-Court Lawsuits”) filed in state court against Allied Shipyard, Inc. (“Allied”): Adams, et al. v. Allied Shipyard, Inc., et al. and St. Pierre, et al. v. Allied Shipyard, Inc.2 The plaintiffs in the State-Court Lawsuits allege Allied negligently performed sandblasting activities, causing dangerous silica dust and other hazardous substances to permeate the plaintiffs’ neighborhood.3 The plaintiffs seek damages for physical pain and suffering, medical expenses, property damage, and other damages as a result of their exposure' to the hazardous substances.4 The two cases were consolidated in state court on September 9, 2013.5

In both State-Court Lawsuits, Allied filed third-party demands against its contractors that performed the sandblasting jobs, including Superior Labor Services, Inc. (“Superior”)6 and Masse Contracting, Inc. (“Masse”).7 Specifically, Allied alleges that Superior and Masse contracted with Allied to perform certain job responsibilities and to indemnify Allied under master work contracts.8- Allied seeks indemnity from Superior -and from Masse with respect to the claims in the State-Court Lawsuits.9 Allied has also alleged the right to additional assured status and coverage on all insurance policies issued to Superior and to Masse for any liability in the State-Court Lawsuits.10

' The plaintiffs in Adams amended their petition to name Superior, Masse,' other subcontractors, and Gray Insurance Company as direct defendants.11.

The contractors against which Allied brought third-party demands “in turn sought coverage, defense and/or indemnity from their various insurers for the periods of time when these jobs were allegedly performed, which prompted the insurers to file lawsuits in federal courts.”12

B. Declaratory Actions in Federal Court

Three federal actions related to the State-Court lawsuits are pending in this Court. The Court consolidated the three cases on November 21,2014.13

1. No. 11-2375

On September 21, 2011, Hanover Insurance Company (“Hanover”) filed a complaint in this Court.14 Hanover filed an amended complaint on September .27, 2012.15 Hanover alleges it has been participating in the defense of. Superior against Allied’s third-party demands- in the State-Court Lawsuits.16 Hanover maintains the *664other insurers it names in its federal suit “are. not participating in Superior’s defense” in the State-Court Lawsuits.17 Hanover seeks judgment against Superior declaring that it has no duty to defend or indemnify Superior in the State-Court Lawsuits.18 If Hanover has a duty to defend or indemnify Superior, Hanover seeks declaratory judgment that State National Insurance Company (“State National”), Arch Insurance Company (“Arch”), and “other unidentified insurance companies collectively named as ABC Insurance Company” are liable “for their share of defense and indemnity to be paid on behalf of Superior” in the State-Court Lawsuits.19 Hanover also seeks reimbursement, contribution,: and/or damages from State National, Arch, and other unidentified insurance companies for defense costs already incurred by Hanover on behalf of Superior in the State-Court Lawsuits that, Hanover argues, should have been paid by those insurance companies.20

On January 14, 2015, Hanover filed a second supplemental and amending complaint naming Allied as a defendant.21 Hanover alleges that “Allied has tendered the [State-Court Lawsuits] to; Hanover for defense and indemnity in its capacity as an alleged additional insured” under Superi- or’s policies, and Hanover has offered to participate in Allied’s defense in the State-Court Lawsuits subject to a full reservation of rights.22 Hanover alleges that Allied is not an additional assured under Hanover’s policies, and Hanover seeks judgment against Allied declaring that it has no duty to defend or indemnify Allied in the State-Court Lawsuits.23 In the alternative, if the Court finds Hanover has a duty to defend or indemnify Allied, Hanover seeks judgment declaring that Arch, State National, other unidentified insurance companies are obligated to pay then- portions of defense costs and/or indemnity incurred by Hanover on behalf of Superior and Allied in the State-Court Lawsuits.24

2. No. 14-1980

On August 22, 2014, Arch Insurance Company brought an action for declaratory judgment against Superior and Allied. Arch seeks a declaration of its rights and responsibilities under “certain insurance policies issued by Arch to Superior,” with respect to Superior’s request for defense and indemnity in the State-Court Lawsuits.25 Arch, also seeks a declaration of its rights and responsibilities with respect to Allied’s request for additional assured status under the Superior policies and defense and indemnity of Allied in the State-Court Lawsuits.26 Arch seeks a declaration against Superior and Allied that Arch has no defense or indemnity obligation to Superior in the State-Court Lawsuits.27 Arch also seeks recovery of the portion of defense costs already incurred by it on behalf of Superior.28

*665 3. No. Up-1933

On August 22, 2014; Arch also filed an action for declaratory judgment against Masse and Allied. Arch seeks a declaration of its rights and responsibilities under “certain insurance policies issued by Arch to Masse,” with respect to Masse’s request for defense and indemnity in the State-Court Lawsuits.29 Arch also seeks a declaration of its rights and responsibilities with respect to Allied’s request for additional assured status under the Masse policies and defense and indemnity of Allied in the State-Court Lawsuits.30 Arch seeks a declaration against Masse and Allied that Arch has no defense or indemnity obligation to Masse in the State-Court Lawsuits.31

On January 14, 2015, Hanover filed a complaint in intervention in Case No. 14-1933 against Defendants Masse and Allied.32 Hanover seeks judgment declaring that Hanover has no obligation to defend or indemnify Masse or Allied in the State-Court Lawsuits.33

State National Insurance Company (“State National”) also filed a petition for intervention for declaratory judgment on January 14, 2015.34 State National issued two marine general liability policies to Masse that provided coverage from November 15, 2006, to November 15, 2007, and from November 15, 2007, to November 15, 2008.35 Allied seeks additional insured status under the policies issued by State National to Masse.36 State National seeks a judgment declaring there is no coverage afforded to Masse under the State National policies and that State National has no duty to defend or indemnify Masse in the State-Court Lawsuits.37 State National also seeks a declaration that “there is no coverage afforded to Allied under the [State National] policies as a purported additional insured” and that State National does not owe a duty to defend or indemnify Allied in the State-Court Lawsuits.38

C. Hanover’s Motion for Partial Summary Judgment

Hanover filed a motion for partial summary judgment against Masse and Allied on July 29, 2015.39 Hanover argues it has no duty to defend Masse or Allied, as an additional insured under the policies issued to Masse, in the State-Court Lawsuits for three reasons: (1) that the plaintiffs in the State-Court Lawsuits do not allege “bodily injury” or “property damage” that occurred during the terms of the policies Hanover issued to Masse; (2) alternatively, that the plaintiffs in the State-Court Lawsuits seek recovery for injuries arising out of exposure to silica dust and the Hanover policies contain an exclusion for silica, silicon, and silicate; and (3) alternatively, the policies contain a Pollution Buyback Endorsement that is not triggered by the State-Court Lawsuits and thus does not extend coverage for the state-court plaintiffs’ injuries.40 In its motion, and solely for *666purposes of its motion, Hanover assumes that Allied qualifies as an additional assured within the meaning of the Masse policies.41 Whether Allied will indeed qualify as an additional assured under the policies is not addressed in this ruling.

Masse filed its opposition to Hanover’s motion on December 8, 2015,42 and Allied filed its opposition on December 14, 2015.43 Hanover filed a reply memorandum in support of its motion on December 15, 2015.44 After deposing Anthony Boudreaux, Allied’s vice president of operations and Superior’s former vice president, Masse filed a memorandum to supplement its opposition on February 29, 2016.45

HANOVER’S INTERVENTION

The Court must determine whether Hanover’s intervention in No. 14-1933 was permissible under Rule 24. Rule 24(a) provides for intervention as of right, while Rule 24(b) provides for permissive intervention. Hanover filed a supplemental memorandum on March 29, 2016, arguing intervention was proper under both Rule 24(a) and Rule 24(b).46 Masse argues the intervention is improper.47

A. Intervention of Right

Rule 24(a) provides that the court must permit anyone to intervene who (1) is given an unconditional right to intervene by a federal statute or (2) claims an interest relating to the property or transaction that is the subject of the action, and is so situated that disposing of the action may as a practical matter impair or impede the movant’s ability to protect its interest, unless existing parties adequately represent that interest.48

Hanover points to no federal statute giving it an unconditional right to intervene. “Absent a statute giving a right to intervene, Rule 24(a) imposes four requirements for intervention as of right:' (1) timé-liness, (2) an interest relating to the subject matter of the main action, (3) at least potential impairment of that interest if the action is resolved without the intervenor, and (4) lack of adequate representation by existing parties.”49

To show it has an interest relating to the subject matter of the main action, Hanover must demonstrate it has “a direct, substantial, legally protectable interest in the action, meaning ‘that the interest be one which the substantive law recognizes as belonging to or being owned by the applicant.’ ”50 Hanover argues that it has shown it has an interest relating to the subject matter of the main action (1) because it “has been defending Masse pursuant to reservation in the same underlying lawsuits at issue in Arch’s declaratory *667judgment action,” and (2) because Hanover’s policies issued to Masse and Arch’s policies issued to . Masse, the subject of the main action, both contain substantially similar exclusions. Hanover argues it has an interest “in obtaining a consistent judicial determination, regarding its .coverage obligations to Masse in the underlying lawsuits.”51 Hanover fails to show, however, that it “has a stake in the matter that goes beyond a generalized preference that the case come out a certain way.” 52Hanover’s purported interest is insufficient to establish an “interest” relating to the subject matter of the main action under Rule 24(a).53

Hanover also fails to show that its interest would be at least potentially impaired if the action is resolved without it. “Impairment exists when the decision of a legal question would, as a practical matter, foreclose the rights of the proposed intervenor in a subsequent proceeding.”54 Hanover has failed to establish that its interest would be potentially impaired if the main action is resolved without it, as Hanover has not demonstrated that “the disposition of [the main] suit will ... bar [Hanover] from asserting [its] rights in a separate action.”55

Because Hanover fails to demonstrate at least two of the four prongs necessary to establish intervention of right, the. Court finds Hanover is not entitled to intervention of right under Rule 24(a).

B. Permissive Intervention

Rule 24(b) provides that courts may permit anyone to intervene who has a claim or defense that shares with the main action a common question of law or fact.56 “Even if not warranted as a matter of right, the Court has broad discretion to allow permissive intervention where, as here, the parties seeking to intervene assert claims with a common question of fact or law in connection with the main action.”57 If the • intervenor has a claim or defense that shares with the main action a common question of law or fact, district courts have “broad discretion” in allowing intervention.58 “A court possesses the discretion to - determine whether to permit permissive intervention and must ‘consider whether the intervention will unduly delay or prejudice the adjudication of the rights of the original parties.’ ”59 The rule. on permissive intervention “should be liberally construed.”60

In Pennsylvania National Mutual Casualty Insurance Co. v. Perlberg, the dis*668trict court for the District of Maryland allowed an insurer to intervene permissively under Rule 24(b)(1)(B) in a situation similar to that currently before this Court.61 In Perlberg, Penn National issued a commercial general liability policy to the Perlbergs, defendants in an underlying personal injury lawsuit.62 Penn National filed a federal declaratory judgment action against the' Perlbergs, seeking a declaration that it owed no duty to defend or indemnify the Perlbergs in the underlying lawsuit.63 New Hampshire, another insurer that provided a separate commercial general liability policy to the Perlbergs, had been defending the Perlbergs in the underlying lawsuit.64 New Hampshire filed a motion to intervene in Penn National’s declaratory judgment action to protect its potential contribution rights.65 The court granted the motion to intervene, concluding that permissive intervention under Rule 24(b) was appropriate.66 The court explained that the lawsuit could determine both Penn National’s declaratory judgment action and New Hampshire’s contribution claim in one proceeding while allowing all parties to be heard.67 The court also explained that the intervention would avoid a competing suit in state court.68

Several issues of law and fact in Hanover’s declaratory judgment action against Masse and Allied are common to those in Arch’s declaratory judgment action against those same entities. Both Arch and Hanover seek declaratory judgment that they have no duty to defend or indemnify Masse or Allied in the State-Court Lawsuits.69 The allegations of the underlying State-Court Lawsuits are the same with respect to both declaratory judgment actions. Although the relevant provisions of the policies issued to Masse by Arch and by Hanover are not identical, the material factual disputes -will most certainly overlap and the legal issues surrounding the application of the silica and pollution exclusions in the policies will be substantially similar. As in Perlberg, this lawsuit can be used to determine Arch’s declaratory judgment action and Hanover’s declaratory judgment action in one proceeding while allowing all parties to be heard. Intervention will avoid a competing action in state court and will avoid inconsistent results on these disputed issues. The Court finds the approach taken by the court in Perlberg to be common-sense and well within the Court’s discretion under Rule 24(b).

Courts should also consider whether permissive intervention will achieve judicial economy.70 The Court finds that judicial economy will be served by allowing Hanover to intervene in this action and that allowing Hanover’s claim in intervention to proceed will not unduly delay or prejudice any parties.71 Although *669the Arch declaratory judgment action has been pending for some time, there has been virtually no activity in the case other than motions for summary judgment on the duty to defend, as the parties have been focusing on the underlying State-Court Lawsuits. Hanover’s claim in intervention is permissible under Rule 24(b), and the Court will exercise its broad discretion by allowing the claim in intervention to proceed, as “[^Intervention should generally be allowed where no one would be hurt and greater justice could be attained.”72

CONSIDERATION OF DECLARATORY JUDGMENT ACTIONS

Hanover has intervened to assert a declaratory judgment action against Masse and Allied. The Declaratory Judgment Act, 28 U.S.C. § 2201, provides in pertinent part:

In a case of actual controversy within its jurisdiction ... any court of the United States, upon the filing of an appropriate pleading, may declare the rights and other legal relations of any interested party seeking such declaration, whether or not further relief is or could be sought. Any such declaration shall have the force and effect of a final judgment or decree and shall be reviewable as such.73

The Fifth Circuit has explained that, when considering a declaratory judgment action, a district court must engage in a three-step inquiry to determine whether to decide or dismiss a complaint for declaratory relief.74 First, the Court must determine whether the action is justiciable.75 Second, the Court must determine whether it has the authority to grant declaratory relief.76 Third, the Court must determine “how to exercise its broad discretion to decide or dismiss a declaratory judgment action.”77 If Hanover’s claims survive this analysis, the Court will then consider whether Hanover has a duty to defend the insured under the policies at issue.

A. Justiciability

The justiciability doctrines of standing, mootness, political question, and ripeness derive from Article Ill’s “case or controversy” requirement.78 In a declaratory *670judgment action, justiciability often turns on ripeness.79 This case is no exception.

The ripeness doctrine is drawn “both from Article III limitations on judicial power and from- prudential reasons for refusing to exercise jurisdiction.”80 The purpose of this doctrine is to forestall “entanglement] ... in abstract disagreements” through “avoidance of premature adjudication.”81 “The key considerations are ‘the fitness of the issues for judicial decision and the hardship to the parties of withholding court consideration.’ ”82

The Fifth Circuit has recognized that “applying the ripeness doctrine in the declaratory judgment context presents a unique challenge.”83 This stems primarily from the fact that declaratory relief often involves an ex ante determination of rights, ie., a determination of rights before an injury has occurred, that “exists in some tension with traditional notions of ripeness.”84 Fortunately, this challenge is not presented today, because the Court’s analysis is guided'by a distinct subset of ripeness jurisprudence on disputes regarding the duty to defend.

Because the duty to defend does not depend on the outcome of the underlying law suit,85 a duty-to-defend claim is ripe when the underlying suit is filed.86 Accordingly, Hanover’s duty-to-defend claim is ripe, and the Court finds the action is justiciable.

B. Authority to Grant Declaratory Belief

The Fifth Circuit has explained that “when a state lawsuit is pending, more often than not, issuing a declaratory judgment will be tantamount to issuing an injunction—providing the declaratory plaintiff an end run around the requirements of the Anti-Injunction Act.”87 Therefore, the district court cannot consider the merits of a declaratory judgment action when (1) a declaratory defendant has previously filed a cause of action in state court against the declaratory plaintiff; (2) thé state case involves the same issues as those involved in the federal case; and (3) *671the district court is prohibited from enjoining the state proceedings under the Anti-Injunction Act.88

In Hanover’s complaint in intervention, Hanover alleges that, pursuant to its policies, it is participating in Masse’s defense against the Adams plaintiffs’ demands and third-party demands in the State-Court Lawsuits, “subject to a full reservation of rights.”89 Hanover does not assert that it is a party in the State-Court Lawsuits, and the Court is not aware of any state-court proceedings involving the same issues now being examined. Therefore, the' Court finds that the Anti-Injunction Act does not apply, as there is no pending state-court action between Hanover and any of the defendants in this case.90

Accordingly, the .Court’s authority to grant declaratory relief on the duty-to-defend claim turns on whether subject-matter’ jurisdiction'' is proper.91 Hanover asserts the Court has subject-matter jurisdiction over its intervention pursuant to. 28 U.S.C. § 1332(a).92 28 U.S.C. § 1332(a) provides that jurisdiction is proper where (1) the parties are completely diverse, and (2) the amount in controversy exceeds $75,000.93

> The parties are completely diverse when “the citizenship of each plaintiff is diverse from the citizenship of each defendant.”94 All of the parties in this matter are corporations.95 For purposes of diversity jurisdiction; a corporation is a citizen of (1) its state of incorporation, and (2) the state in which its principal place of business is located.96 According to the complaint in intervention, Hanover is a citizen of New Hampshire, the state of its incorporation, and Massachusetts, the state in which its principal place of business is located.97 Defendant-in-intervention Masse is a citizen of Louisiana, the state of its incorporation and the state in which its principal place of business is located.98 Defendant-in-intervention Allied is a citizen of Louisiana, the state of its incorporation and the state in which' its principal place of business is located.99 Because none of the defendants-in-intervention is a citizen of New Hampshire or Massachusetts, the states in which Hanover is a citizen, there is complete diversity.

*672In addition to complete diversity, Section 1332(a) requires that the amount in controversy exceed $75,000. As the party invoking federal jurisdiction, Hanover bears the burden of establishing the amount in controversy by a preponderance of the evidence.100 In order to determine whether that burden has, been met, the Court first inquires whether it is,“facially apparent” from the complaint that the amount in controversy exceeds $75,000.101 If not, the Court may examine summary judgment-type evidence.102

When an insurer seeks a declaratory judgment on coverage issues, the amount in controversy is equal- to the “[insurer’s] potential liability under the policy, plus potential attorneys’ fees, penalties, statutory damages, and punitive damages.”103 As-set forth in the complaint in this case and the petitions from the State-Court Lawsuits, the state-court plaintiffs allege they have suffered, property damage and severe bodily injury and have contracted diseases, including silicosis, Chronic Obstructive Pulmonary Disease, Wegener’s granulomatosis. Masse’s potential liability for these injuries—and thus Hanover’s derivative indemnity liability— could easily exceed $75,000.104 When coupled with Hanover’s potential defense obligations, the Court concludes the amount in controversy exceeded the jurisdictional amount at the time this action was filed.105

Therefore, because the Court has diversity jurisdiction over this matter and the Anti-Injunction action does not apply, the Court finds it has the authority to grant declaratory relief in this case.106

C. Discretion to Exercise Jurisdiction

“Since its inception, the Declaratory Judgment Act has been understood to confer on federal courts unique and substantial discretion in deciding whether to declare the rights of litigants,” even when subject-matter jurisdiction is otherwise proper.107 The Fifth Circuit has developed seven factors—the so-called “Trejo factors”—that a district court should consider when deciding whether to exercise jurisdiction over a declaratory judgment action:

(1). whether there is a pending state , action in which all of the matters in controversy may be fully litigated;

(2) whether the plaintiff filed suit in anticipation of a lawsuit filed by the defendant;

(3) whether the plaintiff engaged in forum shopping in bringing the suit;

(4) whether possible inequities in allowing the declaratory plaintiff to gain *673precedence in time or to change forums exist;

(5) whether the federal court is a convenient forum for the parties and witnesses;

(6) whether retaining the lawsuit would serve the purposes of judicial economy; and

(7) whether the federal court is being called on to construe a state judicial decree involving the same parties and entered by the court before whom the parallel state suit between the same parties is pending.108

As set forth below, the Trejo factors weigh in favor of exercising jurisdiction. Accordingly, the Court will exercise jurisdiction over this matter.

1. Nature of Pending State Court Action

The first Trejo factor requires comparison of the declaratory judgment action with the underlying state-court action.109 If the declaratory judgment action presents the same issues as the state-court action, involves the same parties, and is not governed by federal law, the federal court should generally decline to exercise jurisdiction.110 If, on the other hand, the state-court action is not truly parallel because it does not involve all the same parties or issues as the declaratory judgment action, a federal court should consider the degree of similarity between the two actions.111

Hanover is not a party to the State-Court Lawsuits. Moreover, whereas the State-Court Lawsuits involve issues of fact, fault, and causation, the determination of whether there is a duty to defend involves a straightforward examination of the state-court pleadings and the insurance policies Hanover issued to the state-court defendants. Furthermore, the resolution of the State-Court Lawsuits will not determine Hanover’s duty to provide coverage. The state and federal proceedings are clearly not parallel. “[T]he lack of a pending parallel state proceeding ... weighs strongly against dismissal.”112 The first Trejo factor weighs in favor of exercising jurisdiction.

2. Order of Filing

The St. Pierre lawsuit was filed on December 8, 2010,113 and the Adams lawsuit was filed on December 28, 2010.114 Arch filed the lawsuit presently before this Court on August 22, 2014,115 and Hanover filed its complaint-in-intervention on January 14, 2015.116 Hanover likely was aware that its insurance coverage of Superior and Masse would become an issue in the pending State-Court Lawsuits. Therefore, Hanover may have filed its complaint in intervention in anticipation of becoming a party *674to the pending State-Court Lawsuits.117 The second Trejo factor weighs against exercising jurisdiction.118

3. Forum Shopping

That Hanover could have intervened and requested declaratory judgment in the State-Court Lawsuits does not necessarily demonstrate forum shopping.119 As a preliminary matter, there is no guarantee Hanover would have been allowed to intervene in the State-Court Lawsuits.120 Moreover, courts are less likely to find forum shopping where, as here, (1) a foreign insurer files a diversity action in federal court, and (2) the selection of the federal forum does not change the applicable law.121 “The record does not support a finding that [Hanover] engaged in impermissible forum shopping by filing this declaratory judgment suit.”122 The third Trejo factor weighs in favor of exercising jurisdiction.

A Inequities

The Court cannot conceive of any inequities that flow from allowing Hanover to proceed in this action while the State-Court Lawsuits remain pending. As explained above, the State-Court Lawsuits and this action are not parallel in any material sense. No party will be prejudiced if this action is resolved before the State-Court Lawsuits. The fourth Trejo factor weighs in favor of exercising jurisdiction.

5. Convenience of Federal Forum

The State-Court Lawsuits are pending in the 17th Judicial District Court for the Parish of Lafourche, State of Louisiana.123 The state courthouse for the 17th Judicial District Court for Lafourche Parish is approximately 60 miles west of the federal courthouse in New Orleans. No party argues that this forum is inconvenient or that either forum is more convenient than the other for the parties or for the witnesses. This factor is neutral.124

6. Judicial Economy

This action has been pending for more than 18 months. The duty-to-defend issue has been fully briefed before this Court. It would be a waste of judicial resources to dismiss this action and re*675quire Hanover to refile in.another forum. Exercising jurisdiction is clearly in the interest of judicial economy.125 This factor weighs in favor of exercising jurisdiction.

7. Interpretation of Decree from Parallel State Proceeding

Again, the State-Court Lawsuits and this action are clearly not parallel. This Court need not interpret any decree issued in the State-Court Lawsuits to determine whether Hanover has a duty to defend or provide coverage. The seventh Trejo factor weighs in favor of exercising jurisdiction.126

Five of the Trejo factors weigh in favor of exercising jurisdiction, while one weighs against and another is neutral. Accordingly, the Court will exercise its jurisdiction over this matter.127

LAW AND ANALYSIS

A. The “Eight-Corners Rule” ■

Under Louisiana law, an insurance policy is a contract and should be construed using the general rules of interpretation of contracts set forth in the Louisiana Civil Code.128 A liability insurer’s duty to defend and the scope- of its coverage are separate and distinct issues.129 Under Louisiana law, an insurer’s duty to defend is broader than its obligation to indemnify for damage claims.130 Louisiana courts apply the “eight-corners rule” to determine whether a liability insurer has the duty to defend a civil action against its insured; courts look to the “four corners” of the plaintiffs petition in the civil action and the “four corners” of the insurance policy to determine whether the insurer owes its insured a duty to defend.131 One Louisiana court explained as follows:

Under [the “eight-corners”] analysis, the factual allegations of the plaintiffs petition must be liberally interpreted to determine whether they set forth grounds which raise even the possibility of liability under the policy. In other words, the test is not whether the allegations unambiguously assert coverage, but rather whether they do not unambiguously exclude coverage. Similarly, even though a plaintiffs petition may allege numerous claims for which coverage is excluded under an insurer’s policy, a duty to defend may nonetheless exist if there is at least a single allegation in the petition under which coverage is not unambiguously excluded.132

*676The duty to defend “arises whenever the pleadings against the insured disclose even a possibility of liability under the policy.”133 The insurer has a duty to defend unless the allegations in the petition for damages, as applied to the policy, unambiguously preclude coverage.134 “Once a complaint states one claim within the policy’s coverage, the insurer has a duty to accept defense of the entire lawsuit, even though other claims in the complaint fall outside the policy’s coverage.”135

When a party files a motion for summary judgment regarding the duty to defend, the Court may consider only the plaintiffs petition and the face of the policies; the parties cannot present any evidence such as affidavits or depositions.136 Factual inquiries beyond the petition for damages and the relevant insurance policy are prohibited with respect to the duty to defend.137 Any ambiguities within the policy are resolved in favor of the insured to effect, not deny, coverage.138

B. The Policies

Hanover issued three commercial lines policies to Masse: one that provided coverage from November 15, 2009, through November 15, 2010 (“the 2009 policy”),139 another that provided coverage from November 15, 2010, through November 15, 2011 (“the 2010 policy”),140 and a third that provided coverage from November 15, 2011, through November 15, 2012 (“the 2011 policy”).141

1. General Liability

The 2009 and 2010 policies provide that Hanover “will pay on behalf of the insured all sums which the insured shall become legally obligated to pay as damages because of.. .bodily injury [and].. .property damage to which this insurance applies, caused by an occurrence, and [Hanover] shall have the right and duty to defend any suit against the insured seeking damages....”142 Similarly, the 2011 policy states that Hanover “will pay those sums that the insured becomes legally obligated to pay as damages because of ‘bodily injury or ‘property damage’ to which this insurance applies” and that Hanover “will have the right and duty to defend the insured against any ‘suit’ seeking those damages.”143

The 2009 and 2010 policies define “bodily injury’ as “bodily injury, sickness or disease sustained by any person which occurs during the policy period, including death at any time resulting therefrom.”144 *677The 2009 and 2010 policies define “property damage” as “(1) physical injury to or destruction of tangible property which occurs during the policy period, including the loss of use thereof at any time resulting therefrom, or (2) loss of use of tangible property which has not been physically injured or destroyed provided such loss of use is caused by an occurrence during the policy period.”145 The policies define “occurrence” as “an accident, including continuous or repeated exposure in conditions, which results in bodily injury or property damage neither expected nor intended from the standpoint of the insured.”146

Similarly, the 2011 policy defines “bodily injury” as “bodily injury, sickness or disease sustained by a person, including death resulting from any of these at any time.”147 The 2011 policy states, “ ‘Property damage’ means: (a) physical injury to tangible property, including all resulting loss of use of that property. All such loss of use shall be deemed to occur at the time of the physical injury that caused it; or (b) Loss of use of tangible property that is not physically injured. All such loss of use shall be deemed to occur at the time of the ‘occurrence’ that caused it.”148 The 2011 policy defines “occurrence” as “all loss or damage that is attributable directly or indirectly to: (a) One cause, act, event or series of similar related causes, acts or events involving one or more persons; or (b) One cause, act or event, or a series of similar related causes, acts or events not involving any person.”149 The 2011 policy states, “This insurance applies to ‘bodily injury’ and ‘property damage’ only if: (1) The ‘bodily injury’ or ‘property damage’ is caused by an ‘occurrence’ that takes place in the ‘coverage territory'; and (2) The ‘bodily injury’ or ‘property damage’ actually commences during the policy period.”150 The policy’s “coverage territory” includes the United States.151

2. Silicon, Silica, and Silicate Exclusion

All three policies contain an exclusion for silicon, silica, and silicate. The 2009 and 2010 policies provide as follows:

1. This insurance does not apply to any liability or loss, cost or expense arising out of the actual, alleged or threatened contaminative, pathogenic, toxic or other hazardous properties of Silicon.

2. This insurance does not apply to any loss, cost or expense arising out of any:

a. [Rjequest, demand, order or regulatory or statutory requirement that any assured or others test for, monitor, clean up, remove, contain, treat, detoxify or neutralize, or in any way respond to, or assess the effects of Silieon[;] or

b. Claim or proceeding by or on behalf of a governmental authority or others 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 Silicon.

As used in this exclusion, Silicon means the element Silicon, including silica and other silicate compounds, or its presence or use in any other alloy, by-product, compound or other material or waste. Waste includes material *678to .be recycled, reconditioned or reclaimed.152

The 2011 policy contains a similar exclusion:

This insurance does not apply to any “bodily injury” or “property damage”, or loss, cost or expense, however caused, arising .out of the actual, alleged or threatened:

(1) contaminative, pathogenic, toxic or other hazardous properties of Silicon.

(2) request, demand, order or regulatory or statutory requirement 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 silicon; or

(3) claim or proceeding by or on behalf of a governmental authority or others 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 Silicon.

As used in this exclusion, Silicon means the element Silicon, including silica and other silicate compounds, or its presence or use in any. other alloy, by-product, compound or other material or waste. Waste includes material to’ be recycled, reconditioned or reclaimed.153

3. Pollution Buyback Endorsement

The policies also contain a Pollution Buyback Endorsement. In relevant part, thé endorsement contained in the 2009 and 2010 policies states as follows:

It is hereby understood and agreed that this policy shall not apply to any claim arising out of the discharge, dispersal, release or escape of smoke, vapors, soot, fumes, alkalis, toxic chemicals, liquids or gases, waste materials, oil or other petroleum substance or derivative (including all oil refuse or oil mixed wastes) or other - irritants, contaminants or pollutants or upon land, the atmosphere, or any watercourse or body of water.

This exclusion shall not apply, however, provided that the Assured establishes that all of the following conditions have been met[:]

(a) the occurrence was accidental and was neither expected nor intended by the assured. An occurrence shall not be considered unintended or unexpected unless caused by some intervening event neither foreseeable nor intended by the assured.

(b) the occurrence • can be identified as commencing at a specific time and date during the term of the policy.

(c) the occurrence became known to the assured within 72 hours after it’s [sic] commencement.

(d) the occurrence was reported in writing to these underwriter [sic] within 30 days after having become known to the assured.

(e) the occurrence did not result from the assured’s intentional and willful violation of any government statute, rule or regulations.154

The Pollution Buyback Endorsement' in the 2011 policy is worded slightly differently, as it states, “This policy shall apply to any claim arising out of the discharge, dispersal, release, or escape of smoke, vapors, soot, fumes... provided that the insured establishes that all of the following conditions have been met .... ”155 The endorsement in the 2011 policy contains the same five time-element conditions.156 The *679differences in the language of the endorsement in the 2011 policies are immaterial, as the effect of the endorsement in the 2011 policy is the same as the effect of the endorsement in the 2009 and 2010 policies. Hanover does not argue otherwise and indeed analyzes the policies together.157

C. The Allegations of the State-Court Lawsuits

In Adams, et al. v. Allied Shipyard, Inc., et al., the plaintiffs allege they “are residents of a neighborhood that borders” Allied’s shipyard.158 They further allege that Allied, whose shipyard has been operating since the 1960s, has been operating “for decades without appropriate borders to stop the resulting dangerous silica dust produced by its sandblasting from permeating the neighborhood.”159 Allied’s alleged negligence has “expos[ed] the residents to dust containing silica sand, a very dangerous substance, as well as other toxic substances.”160 The petition alleges that the plaintiffs’ “long, consistent and protracted” exposure and “inhalation of the silica dust” has caused the plaintiffs to contract severe diseases and illnesses “that are'painful and disabling,” including Weg-ener’s granulomatosis, rheumatoid arthritis, silicosis, and Chronic Obstructive Pulmonary Disease.161 In the plaintiffs’ third amended petition for damages, the plaintiffs named Masse as a defendant.162 The plaintiffs allege that Masse has “conducted sandblasting and painting operations and [has] allowed dangerous by product to drift into the neighborhood,” which “caused both personal injuries and property damages to all Plaintiffs.”163

In St. Pierre, et al. v. Allied Shipyard, Inc., the plaintiffs allege they lived in a residence near Allied’s shipyard for approximately eight years preceding 2010.164 The St. Pierre plaintiffs allege that Allied was negligent when performing its operations, which “resulted in the release into the atmosphere and environment in the neighborhoods surrounding the shipyard of hazardous substances, including, but not limited to, paint, sand and silica.”165 The petition alleges that, as a result, the plaintiffs were exposed to the hazardous substances and “have suffered personal injury, mental anguish, health problems, inconvenience, distress, loss of consortium, fear of disease, and other damages.”166

D. Hanover Argues the Damages Did Not Occur during the Policy Periods and, Thus, Recovery is Unambiguously Excluded under the Policies

The Hanover policies impose on Hanover a duty "to pay on behalf of its insured any sums the insured becomes legally obligated to pay as damages because of “bodily injury” or “property damage” caused by an “occurrence” and to which the policies apply.167 Under the 2009 and 2010 policies, the bodily injury or property damage must “occur[] during the policy period.”168

*680Hanover argues that it has no duty to defend Masse or Allied because the State-Court Lawsuits do not allege “bodily injury” or “property ¡damage’^ that “occurred” during the policy periods.169 Hanover argues, “[-N]either underlying plaintiffs nor Allied have alleged any injuries during Hanover’s Policy periods, much less that Masse was actually- performing any work at Allied’s shipyard during Hanover’s Policy periods that could have caused underlying plaintiffs’ alleged damages during the relevant periods.”170 As previously explained, however, Hanover misstates the standard for a motion for summary judgment on the duty to defend.171 To prevail on a motion for summary judgment that it has no duty to defend, an insurer must establish that coverage is unambiguously precluded based oh review of the four corners of the petition for'damages and the four corners of the complaint.172

. The Hanover policy periods span November 15, 2009, through November 15, 2012.173 The Adams lawsuit was filed on December 28, 2010.174 The petition in Adams notes that Allied has operated “for decades without appropriate borders” to prevent dangerous silica dust, from. permeating the neighborhood, and that the exposure has been “prolonged” and “long, consistent and protracted.”175 Thus, the Adams plaintiffs’ allege their exposure occurred over decades. The Adams plaintiffs also allege that- they contracted illnesses and diseases as a result of the exposure and that “[t]he dust is so constant and voluminous -that residents must continuously wash their cars and houses, almost on a daily basis.”176 They seek damages for medical expenses, loss of income, property damage, and loss of value of property.177

The St. Pierre lawsuit was filed on December 8, 2010.178 The St. Pierre petition alleges that “[f]or approximately eight (8) years, the plaintiffs have lived in a residence. . .located near the shipyard,” and during that time, they were exposed to the hazardous substances released by Allied.179 Based on the allegations in the St. Pierre lawsuit, the St. Pierre plaintiffs’ exposure began in 2002, eight years prior to the suit’s filing, and continued at least until 2010, when the petition was filed. The St. Pierre plaintiffs allege that, as a result of the exposure, they “have suffered personal injury, mental anguish, health problems,” and other damages.180 They seek damages for physical and mental pain and suffering, medical expenses, damage to personal property.181

Although the state-court petitions do not identify a precise time period during which the plaintiffs were exposed to *681the hazardous substances causing bodily injury and property damage, a review of the petitions and the policies does not unambiguously preclude a finding that the exposure occurred during the policy periods. “An insured’s duty to defend arises whenever the pleadings against the insured disclose even á possibility of liability under the policy.”182 The petitions clearly allege exposure that was ongoing and continuous- for years, even decades in Adams. The plaintiffs in St Pierre allege that they were exposed to the hazardous substances from 2002 to 2010.183 The policies Hanover issued to Masse provide coverage during these time periods.184 The eight corners of the state-court petitions and the policies do not unambiguously preclude the possibility that the exposure causing the plaintiffs’ personal injuries and property damage occurred during Hanover’s policy periods.185

E-. Hanover Argues the Policies’ Silicon, Silica, and Silicate Exclusion Unambiguously Excludes Coverage

Hanover argues separately and alternatively that the eight corners of the petition and the silicon, silica, and silicate exclusion included in its policies taken together unambiguously bar coverage for any liability of the state-court plaintiffs’ injuries.186

The silicon, silica, and silicate exclusion contained in all three policies precludes coverage for any liability or loss “arising out of the actual, alleged or threatened contaminative, pathogenic, toxic or other hazardous properties of Silicon.”187

In their original petition for damages, the Adams plaintiffs allege that their exposure to “silica sand... as well as other toxic substances”188 and “silica dust and *682other harmful products” caused their injuries.189 The plaintiffs’ third amended petition for damages alleges that the defendants “have conducted sandblasting and painting operations and have allowed dangerous byproduct to drift into the neighborhood” and “[t]he byproduct caused both personal injuries and property damages to all Plaintiffs.”190 The plaintiffs allege their exposure to hazardous substances, in addition to silica dust, caused their personal injuries and property damage. The petition for damages does not unambiguously limit the cause of their injuries to “contamina-tive, pathogenic, toxic or other hazardous properties of Silicon,” to which the exclusion applies.191

The St. Pierre petition for damages also does not unambiguously limit the cause of the plaintiffs’ injuries to the hazardous properties of silicon, silica, or silicate. The St. Pierre plaintiffs allege that Allied’s operations “resulted in the release into the atmosphere and' environment in the neighborhoods surrounding the shipyard of hazardous substances, including, but not limited to, paint, sand and silica,”192 which caused the plaintiffs’ personal injuries and property damage.193

Considering the Adams petitions for damages, the St. Pierre petition for damages, and the language of the exclusion found in the policies, the Court does not find that the silicon, silica, and silicate exclusion unambiguously bars coverage of the damages alleged in the State-Court Lawsuits.

F, Hanover Argues the Policies’ Pollution Buyback Endorsement Unambiguously ■ Excludes Coverage

Hanover further argues separately and alternatively that the eight corners of the petitions and the Pollution Buyback Endorsement found in its policies unambiguously preclude coverage.194 The Pollution Buyback Endorsement excludes coverage for “any claim arising out of the discharge, dispersal, release.or escape of smoke, vapors, soot, fumes, alkalis, toxic chemicals, liquids or gases,, waste materials, oil or other petroleum substance or derivative (including all oil refuse or oil mixed wastes) or other irritants, contaminants or pollutants into or upon land, the atmosphere, or any watercourse or body of water.”195 The insured may still be entitled to coverage, however, if it establishes five conditions.196 The endorsement is a total pollution exclusion on damages caused by pollutants, with time-element exceptions.197 Hanover must establish that the exclusion *683unambiguously precludes coverage before the Court may consider whether the time-element conditions have been met.198

The Louisiana Supreme Court has ruled that a literal application of a total pollution exclusion “would lead to ... absurd results” and explained that, “[i]n light of the origin of pollution exclusions, as well as the ambiguous nature and absurd consequences which attend a strict reading of these provisions,” a total pollution exclusion is “neither designed nor intended to be read strictly to exclude coverage for all interactions with irritants or contaminants Of any kind.”199 As a result, the Louisiana Supreme Court has instructed that courts must “attempt to determine the true meaning and interpretation of [the] pollution exclusion.”200 In Doerr v. Mobil Oil Corporation, the Louisiana Supreme Court explained that the applicability of such an exclusion in any given case must necessarily turn on three considerations: (1) whether the insured is a “polluter” within the meaning of the exclusion; (2) whether the injury-causing substance is a “pollutant” within the meaning of the exclusion; and (3) whether there was a “discharge, dispersal, seepage, migration, release or escape” of a pollutant by the insured within the meaning of the policy.201 If the insurer fails to show these three questions are answered in the affirmative, the total pollution exclusion is not applicable and the court need not examine whether the time-element conditions, or exceptions, contained in the endorsement are met.202 The Louisiana Supreme Court expressly stated that these factors must be considered “in any given case,”203 which this Court construes to include decisions involving a motion for summary judgment on the duty to defend, as well as motions involving the duty to indemnify.

Although the Doerr factors should be considered in the duty-to-defend context, *684the Court is nevertheless limited to the eight corners of the petitions and the policies when deciding whether to apply a total pollution exclusion as written. This is borne out by an examination of Louisiana state court cases facing this issue. In Lodwick, L.L.C. v. Chevron U.S.A., Inc., for example, a Louisiana appellate court found that, considering the four corners of the underlying petitions and the four corners of the time-element pollution exclusion, the insurer had no duty to defend because the exclusion unambiguously precluded coverage.204 The court in Lodwick addressed Doerr as “the seminal case addressing pollution exclusions” and applied the Doerr factors using only the four corners of the plaintiffs’ petition for damages.205 For example, the court found that the insureds were “‘polluters’ under the Doerr test” because “[t]hroughout the plaintiffs’ petition for damages, all defendants ... are alleged to be oil field operators and producers.”206 The court also found that the substances that caused the plaintiffs’ injuries were “pollutants” within the meaning of the total pollution exclusion because the plaintiffs “allege[d] that their property was contaminated by.. .[substances that] qualify as chemicals, contaminants, irritants, or waste under the various exclusions.”207 The court concluded that “[p]laintiffs’ allegations make it clear that all three Doerr factors are met.”208 The court thus found that the pollution exclusion in the policies at issue did unambiguously exclude coverage and granted summary judgment declaring that the insurers had no duty to defend.209

In Smith v. Reliance Insurance Company of Illinois,210 the plaintiffs alleged that the release of noxious odors carried by the wind to the plaintiffs’ homes and properties caused their damages.211 Before the Smith court was a motion for partial summary judgment on the insurer’s duty to defend.212 When ruling on the motion, the court used the eight-corners rule and examined a pollution exclusion with a buyback endorsement similar to the exclusion and endorsement currently before this Court as well as the allegations contained in the plaintiffs petition.213 The court applied the Doerr factors based on the facts alleged in the petition and concluded that the insurer “failed to meet its burden of proving the applicability” of the pollution exclusion.214 The court explained that, “although the parties extensively dispute[d] the applicability of the limited buy-back endorsement to th[e] exclusion,” it was unnecessary to reach the issue of whether the buyback endorsement applied because the court found the exclusion itself did not *685unambiguously exclude coverage given the Doerr analysis.215 The court affirmed the judgment of the trial court, which found that the insurer had a duty to defend.216

To apply the Doerr factors in this case, the Court must first determine whether the insured is a “polluter” within the meaning of the exclusion, using the eight corners of the petitions and the policies. The Doerr court described this issue as a fact-based determination for which courts should consider “the nature of the insured’s business, whether that type of business presents a risk of pollution, whether the insured has a separate policy covering the disputed claim, whether the insured should have known from a read of the exclusion that a separate policy covering pollution damages would be necessary for the insured’s business, who the insurer typically insures, any other claims made under the policy, and any other factor the trier of fact deems relevant to this conclusion.”217 Hanover is unable to establish from the eight corners that Masse is a “polluter” within the meaning of the exclusion. For example, Hanover is unable to point to any information within the eight corners regarding the nature of Masse’s business, whether that type of business presents a risk of pollution, and whether Masse has a separate pollution policy. Accordingly, the Court is unable to conclude that Masse is a “polluter” within the meaning of the exclusion.

Second, the Court must determine whether the injury-causing substance is a “pollutant” within the meaning of the exclusion. The Court should consider “the nature of the injury-causing substance, its typical usage, the quantity of the discharge, whether the substance was being used for its intended purpose when the injury took place, whether the substance is one that would be viewed as a pollutant as the term is generally understood, and any other factor the trier of fact deems relevant to that conclusion.”218 Hanover is unable to establish from the eight comers that the substances the State-Court Lawsuit plaintiffs allege caused their personal injuries and property damage are “pollutants” within the meaning of the exclusion such that the exclusion unambiguously precludes coverage. In the Adams and St. Pierre petitions for damages, the plaintiffs broadly describe the substances causing their injuries. The Adams plaintiffs, for example, allege that “silica dust and other harmful products”219 and “dangerous byproduct”220 caused their injuries. The St. Pierre plaintiffs allege that “hazardous substances, including, but not limited to, paint, sand and silica” caused their injuries.221 The Court is unable to determine the nature of the injury-causing substances, their typical usages, the quantity of any discharges, whether the substances were being used for their intended purpose when the injury took place, or whether the substances are ones that would be viewed as pollutants as the term is generally understood. The Court reiterates that “any ambiguity should be interpreted in favor of the insured.”222 Hanover has failed to establish that the injury-causing substance is a “pollutant” within the meaning of the exclusion.

Finally, the Court must consider whether there was a “discharge, dispersal, seepage, migration, release or escape” of *686a pollutant by the insured within the meaning of the policy, a fact-based determination.223 The Court “should consider whether -the pollutant was intentionally or negligently discharged, the amount of the injury-causing substance discharged, whether the actions of the alleged polluter were active or passive, and any other factor the trier of fact deems relevant.”224 The Court is unable to determine from the eight corners whether a pollutant was intentionally or negligently discharged, the amount of the injury-causing substance discharged, or whether the actions of the alleged polluter were active or passive. Hanover has failed to establish that there was a discharge, dispersal, seepage, migration, release or escape of a pollutant by the inshred within the meaning of the policy.

Because Hanover has failed to establish that Másse is a polluter, that the substance or substances to which the plaintiffs were exposed were pollutants, or that there was a discharge within the meaning of the policies, Hanover has failed to establish that the pollution exclusion unambiguously precludes coverage. Therefore, the Court need not reach the issue of whether Masse met the time-element conditions necessary to establish the exception to the pollution exclusion.225 Hanover’s motion for summary judgment on its duty to defend is denied.

The Court notes that Hanover argues Doerr does not apply to this case because the exclusion in Hanover’s policies is not a total pollution exclusion as was the provision examined by the court in Doerr.226 Hanover cites Bridger Lake, LLC v. Seneca Insurance Company, Inc. in support of its position, but this case is distinguishable from the matter before the Court.227 In Bridger Lake, the Western Distinct of Louisiana found that the pollution exclusion for damage “arising out of the actual, alleged or threatened discharge, dispersal, seepage, migration, release or escape of ‘pollutants’ ” applied to a case in which a crude oil pipeline ruptured, causing the release of more than 3,000 barrels of crude oil into the environment.228 The court, however, applied Wyoming law and thus was not bound by, and did not consider, the Louisiana Supreme Court’s decision in Doerr.229

CONCLUSION

IT IS ORDERED that Hanover’s motion for partial summary judgment is DENIED.