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What Lies Beneath: Everything Policyholders Need to Know About the Subsurface Water Exclusion
Posted in Policyholder

Unlike many other causes of loss, such as fire, lightening, or hail, which are typically self-evident, water damage—especially when hidden under the surface of the ground—may not be immediately evident and may require more analysis as to the cause (which can drastically effect insurance coverage).

Many commercial property policies provide broad “all risk” coverage for losses resulting from direct physical loss or damage subject only to certain exclusions. Under all-risk policies, the policyholder has the burden of establishing that a claim falls within the boundaries of coverage. Then, the insurer has the burden of proving whether any exclusions apply to limit coverage.

One such exclusionary provision that is the subject of much litigation is commonly referred to as the “Subsurface Water Exclusion” – a subpart of the broader “Water” exclusion. The standard form ISO commercial property Subsurface Water Exclusion” states, in pertinent part:

  1. We will not pay for loss or damage caused directly or indirectly by any of the following. Such loss or damage is excluded regardless of any other cause or event that contributes concurrently or in any sequence to the loss.

       …

           g. Water . . .

                   (4) Water under the ground surface pressing on, or flowing or seeping through:

                                    (a) Foundations, walls, floors or paved surfaces;

                                    (b) Basements, whether paved or not; or

                                    (c) Doors, windows or other openings . . . .

One reoccurring issue is whether the Subsurface Water Exclusion only bars coverage for water damage resulting from natural sources (e.g., precipitation, underground springs, or other naturally occurring deposits of water) or whether it also extends to artificial sources, such as underground piping or irrigation systems. Courts are divided on the issue with some limiting the exclusion to natural sources whereas others have construed it more broadly to preclude damage from all sources of water.

However, even in jurisdictions that apply this exclusion more broadly, that does not necessarily foreclose the possibility of coverage. Indeed, a number of endorsements or other provisions may conflict with and supersede the Subsurface Water Exclusion to give back coverage—at least with regard to artificial sources of water. For example, sewer and drain endorsements insure against “direct physical loss or damage” caused by the “discharge of water or waterborne material from a sewer, drain or sump pump” located on the insured’s premises. Such amendatory endorsements expressly usually supersede the Subsurface Water Exclusion by including language that resembles the following:

To the extent that the Water Exclusion might conflict with the coverage provided under this endorsement, the Water Exclusion does not apply to such coverage.

And while some provisions or endorsements may not expressly amend coverage as outlined above, inconsistent and contradictory interpretations may nonetheless render the policy ambiguous in favor of coverage (although these endorsements may have a sublimit that is less than the full policy limit).

Because water losses involve complicated and often unique circumstances, it is imperative that policyholders ensure that a comprehensive and unbiased investigation of the source is completed during the claims process to determine not only the extent of damage but also the origin of the water loss. To the extent the source and nature of the water is unknown, the insurer may be unable to carry its burden to exclude coverage.

Whether the Subsurface Water Exclusion may apply often requires a highly fact-dependent analysis and it is best to rely upon those with extensive experience in such matters. Lathrop GPM has a practice dedicated to maximizing insurance recovery for policyholders. For more information, please contact Lathrop GPM’s Insurance Recovery Practice Group Leader Kim Winter or Noah Nash to discuss this post or other coverage-related questions.

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  • Noah  Nash
    Associate

    Noah Nash focuses his practice primarily on insurance recovery matters. He has experience drafting federal and state court pleadings, motions and various court documents. Noah joined the firm after working as a summer associate in ...

The information contained in this post is provided to alert you to legal developments and should not be considered legal advice. It is not intended to and does not create an attorney-client relationship. Specific questions about how this information affects your particular situation should be addressed to one of the individuals listed. No representations or warranties are made with respect to this information, including, without limitation, as to its completeness, timeliness, or accuracy, and Lathrop GPM shall not be liable for any decision made in connection with the information. The choice of a lawyer is an important decision and should not be based solely on advertisements.

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Lathrop GPM is one of the largest law firms in the United States representing policyholders, providing policyholders with the necessary guidance and legal counsel to handle everything from negotiating coverage and managing risk to litigating insurance disputes and recovery. The Road to Insurance Recovery blog is dedicated to helping readers better understand and manage the complexities of the modern business insurance policy.
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