Opinion
Thе appellants in this action, Farmers Insurance Exchange, Fire Insurance Exchange, Truck Insurance Exchange and Mid-Century Insurance Company (Farmers) filed a complaint for declaratory relief in Marin County against over 300 named defendants (Insureds) and 5,000 Doe defendants. The complaint was later amended to name further defend *715 ants. Two demurrers and motions to dismiss were filed by Insureds; one by Christopher and Judith Bryant and one by Richard J. and Patricia Daly. The trial court sustained the demurrers without leave to аmend and dismissed the amended complaint. 1 Judgment was entered accordingly. This appeal followed.
I
In our review of the judgment entered pursuant to the order sustaining the general demurrer, we must accept the material facts alleged in the complaint as true.
(Shaeffer
v.
State of California
(1970)
Northern California experienced a heavy storm in early January of 1982. Many homeowners experienced damage to their real and/or personal property because of subsurface and ground water and earth movement conditions.
Each of the more than 300 named defendants were insured at the time of the storm by one of six types of Farmers’ homeowners policies. These policies are “all risk” policies which enumerate various exclusions from coverage, including “losses caused by, resulting from, contributed to, aggravated by, or caused indirectly or directly by any earth movement, water damage, or enforcement of ordinance or law.” Each of the nаmed Insureds has reported damage to property arising out of conditions created by the January storm, and has submitted a claim under one of the policies issued by Farmers. Insureds reside in communities throughout Northern California from Yuba City to Moss Beach. Farmers denied the claims on the ground that the “efficient proximate cause” of Insureds’ losses are excluded perils. The Insureds, on the other hand, contend that included risks were contributing causes of their losses giving rise to coverage under their policies.
By their amended complaint, Farmers sought the following declaration: “[T]hat because of the exclusions and exceptions set forth in the various *716 property insurance policies issued by plaintiffs to defendants, that said policies do not provide coverage for damage or losses arising out of the January storm because the efficient proximate cause of the damage or loss claimed was an excluded cause, notwithstanding that one or morе intermediate causes may have contributed to the loss or damage.”
II
This appeal presents the question of whether under the factual situation of the case at bench the “efficient proximate cause” analysis, propounded in
Sabella
v.
Wisler
(1963)
California courts have applied an “efficient proximate cause” analysis in determining coverage under insurance policies which contain clauses excluding certain risks or perils. It has been adhered to most often in finding that coverage did exist. The basis of these decisions is that where there is one cause which sets other causes in motion, there is coverage for the loss if the cause which set the others in motion is an included risk under the terms of the policy. This is so even though there might be an excluded risk which also contributed to the loss or damage.
(Sabella
v.
Wisler, supra,
59 Cal.2d at pp. 31-32;
Brooks
v.
Metropolitan Life Ins. Co.
(1945)
Appellants contend that the exclusions in an all-risk homeowner’s property damage policy should be construed to exclude insurance coverage whenever the efficiеnt proximate cause of the loss is an excluded peril. In asserting this proposition, they rely primarily on Sabella v. Wisler, supra. However, Farmers’ reliance on the Sabella case is misplaced.
Sabella concerned an action by property owners against their insurer for recovery under a policy insuring against “all physical loss.” Among other things, the policy excluded loss by settling, cracking and shrinkage.
The home which the insureds purchased in the Sabella case had been built upon filled land. Although the builder was an experienced contractor, he *717 failed to discover the filled nature of the ground or to have tests performed upon the land for such purpose. As a result of the negligence of the builder, the sewer line developed a leak and waste water infiltrated the unstable soil causing subsidence damage to the insureds’ house. The trial court concluded that the insurer was exempt from liability as the proximate cause of the loss was “settling,” an excluded risk. (Sabella v. Wisler, supra, 59 Cal.2d at pp. 24-26.) The Supreme Court reversed, holding there was coverage because the rupture of the sewer line, attributable to the negligence оf a third party, rather than settling, was the efficient proximate cause of the loss. (Id., at pp. 31-32, citing 6 Couch, Insurance (1930) § 1463, p. 5298.)
The
Sabella
court analogized the proximate causation problem therein to that in
Brooks
v.
Metropolitan Life Ins. Co., supra,
The Sabella case concerned itself with proximate causation in the context of one moving cause and one immediate cause of the damage. In such a circumstance, the Supreme Court held recovery may be had if the efficient moving cause was an included risk under the policy. Clearly the holding in Sabella did not rule out the possibility that there may be coverage when an included peril is a concurrent proximate cause with an excluded peril.
Appellants next assert that cases subsequent to
Sabella
have adopted the efficient moving cause analysis outlined therein and that this demonstrates the
Sabella
analysis is the only one to be made in cases of multiple causes and included and excluded risks. In support of this argument appellants cite
Sauer
v.
General Ins. Co.
(1964)
Similar to Sabella, the Sauer case concerned property damage аs a result of a leak in the water pipes below the insureds’ home. Water from the pipe leaked into the ground beneath the home, causing the structure to settle and damaging the walls, floors and foundation. The insureds filed a declaratory relief action concerning their rights and obligations under their “homeowner’s policy.” The policy insured against loss caused by accidental discharge or leakage of water from plumbing. The policy excluded liability for loss *718 caused by earth movement, subsurface water, and settling and cracking. After a court trial, judgment was entered in favor of the insurance company. (Sauer v. General Ins. Co., supra, 225 Cal.App.2d at pp. 276-277.)
The Court of Appeal in Sauer, after extensive recitation of Sabella, concluded without further discussion that the insured was entitled to recovery because the efficient proximate cause of the loss was an included risk, the accidental discharge and leakage of water. (Sauer v. General Ins. Co., supra, 225 Cal.App.2d at pp. 278-280.) We are not persuaded that Sauer's application of the efficient proximate cause analysis to a factual situation parallel to Sabella demonstrates that this is the sole аnalysis to be applied in all multiple causation fact patterns.
We do not find the Gillis case helpful to Farmers’ position. In that case the trial court found that a violent windstorm caused the gangway to be lifted and to fall violently on the insured’s docking facility. This caused the docking facility to subside into the water. (Gillis v. Sun Ins. Office, Ltd., supra, 238 Cal.App.2d at pp. 416-417.)
The fire insurance policy in Gillis insured against loss or damage caused by wind but it “ ‘excluded coverage for loss occurring to the docking facility caused by water or damage from, contributed to or aggrevated [sic] by surface water or waves.’” (Id., at p. 415.) The Court of Appeal, in affirming the trial court’s conclusion that the loss was covered by the policy, stated that the record sustained the implied finding of the lower court that the windstorm alone was the dominant and efficient cause of the damage and loss. (Id., at pp. 423-424.)
Moreover, the court explicitly limited its holding to multiple cause fact patterns similar to the Sabella-type line of cases. The court stated: “The foregoing makes it unnecessary to determine whethеr in every case of several causes, the insured may recover if one is the peril insured against. [Citation.] The effect of the exclusion cause on the situation where the action of the excluded peril precedes the action of the insured peril, and the situation where such causes operate simultaneously and conjointly may be left for future determination. [Citation.]” (Id., at p. 424.) Certainly the Gillis court was not foreclosing the likelihood of “a concurrent proximate cause” analysis bеing applied to an appropriate factual situation.
Later cases have affirmatively held that where a loss is caused concurrently by both an included and an excluded peril, there may be coverage without establishing that the included peril was the efficient proximate cause of the loss.
(State Farm Mut. Auto. Ins. Co.
v.
Partridge, supra,
10 Cal.3d
*719
94;
Premier Ins. Co.
v.
Welch, supra,
In Partridge, in which a declaratory relief action was filed by the insurer, the defendant was insured under both an automobile liability policy and a homeowner’s policy. For hunting purposes, thе insured filed the trigger mechanism of his pistol down to the point of “hair trigger” action. Due to the insured’s negligence in driving the vehicle in rough terrain off the paved road in pursuit of jack rabbits and his negligence in filing the trigger, the gun accidentally discharged injuring a passenger in the vehicle. (State Farm Mut. Auto. Ins. Co. v. Partridge, supra, 10 Cal.3d at pp. 97-99.) While the insurer acknowledged coverage for the accident under the automobile policy, it also contended there was no coverage under the homeowner’s policy because оf an exclusion in that policy for injuries arising out of the use of an automobile. (Id., at p. 99.) The insured claimed there was coverage under both policies since both his negligent acts were concurrent proximate causes of the damage. (Ibid.)
Rejecting the position of the insurer, Justice Tobriner wrote that “when two such risks [an excluded risk and an insured risk] constitute concurrent proximate causes of an accident, the insurer is liable so long as one of the causes is covered by the policy.”
(State Farm Mut. Auto. Ins. Co.
v.
Partridge, supra,
Nor is
Partridge
in conflict with sections 530 and 532 of the Insurance Code which govern insurance coverage for excluded and included risks.
(State Farm Mut. Auto. Ins. Co.
v.
Partridge, supra,
In addition, the
Partridge
court found support for its holding in the case of
Hughes
v.
Potomac Ins. Co.
(1962)
The case of
Premier Ins. Co.
v.
Welch, supra,
The stipulation of fаcts before the trial court provided that the subdrain, intended to release subsurface waters, was damaged. As a result its drainage *721 capacity was impeded and the fill became saturated, causing the structure to be damaged. The damaged subdrain was caused by the negligence of a third party; the most probable explanation being that the damage was the act of the original sewer contractor. It was determined that the loss to the insureds would not have occurred if the subdrаin had not been damaged. (Id., at p. 722.)
The “all risk” homeowners policy in Premier insured against all physical loss to the property, but excluded coverage for losses “caused by, resulting from, contributed to or aggravated by” flood, surface water, water which backs up through sewers or drains, or subsurface or ground water “including that which exerts pressure on or flows, seeps or leaks through . . . foundations [or] walls . . . .” (Id., at p. 723.)
The trial court determined the loss was excluded as the efficient proximate cause of the loss was the rainfall, an excluded peril.
(Premier Ins. Co.
v.
Welch, supra,
Finally, in
Safeco Ins. Co. of America
v.
Guyton, supra,
The Ninth Circuit reversed the declaratory relief judgment and held that the district court misinterpreted California law. (Id., at p. 553.) While the Ninth Circuit noted the efficient proximate cause standard for determining coverage, it also recognized that in factual settings not appropriate for this analysis, another standard is utilized by California courts. The court cited the Partridge opinion. (Id., at p. 554.) “Partridge is dispositive in the Policyholders’ favor. The district court erred in concluding that the flood exclusion clause excluded the Policyholders’ loss even if third party negligence was a proximate cause of the loss.” (Id., at p. 555.)
Applying these principles to the instant appeal, the trial court’s sustaining of the demurrer and dismissal of the action was correct, The
Partridge, Premier
and
Safeco
cases reveal that in an appropriate case coverage may be found not only where the included risk is the efficient or moving cause of the harm, but also where an included risk is
a
concurrent proximate cause of the harm. As in the
Premier
and
Safeco
cases, the сontention of the Insureds herein is that certain included risks were contributing causes of their individual losses. In fact, several examples of the Insureds’ contentions, as set forth in Farmers’ complaint, show that various Insureds are claiming a third party’s negligence contributed to their loss. The
Premier
and
Safeco
courts both stated that there is coverage if a third party’s negligence, an included risk in a typical homeowner’s policy, is a concurrent proximate cause of the harm. The declaration that Farmers sоught goes against the weight of California law. (See
Safeco Ins. Co. of America
v.
Guyton, supra,
m
The trial court’s second basis for sustaining the demurrer to Farmers’ complaint was misjoinder of the various defendant Insureds, because of the need to individually analyze the causation question with regard to each insured. Appellants contend that joinder was appropriate in this case.
Permissive joinder of defendants in a civil action is proper where the complaint asserts against them any right to relief arising out of the same transaction, occurrence, or series of transactions or occurrences and if any question of law or fact common to all defendants will arise in the action. (Code Civ. Proc., § 379.)
In the instant case, joinder is inappropriate because Farmers’ alleged right to declaratory relief against the numerous Insureds did not arise out of the
*723
same transaction or occurrence. Although it is true that the January 1982 storm played a role in the damage to Insureds’ property, it cannot be sаid that all the claims of the Insureds arose out of the same transaction or occurrence. (Cf.
Southern Cal. Edison Co.
v.
State Farm Mut. Auto. Ins. Co.
(1969)
IV
The final challenge by Farmers is that the trial court’s dismissal of the complaint pursuant to the provisions of Code of Civil Procedure section 1061 was erroneous. We find Farmers’ assertion without merit.
Section 1061 provides that a trial court may refuse to exercise his or her power to grant declaratory relief whenever such a declaration is unnecessary or improper at the time, under all the circumstances. This section vests a high degree of discretion in the trial court. Its determination to refuse to grant declaratory relief will not be disturbed on appeal unless a clear abuse of discretion is shown. The discretionary power of the trial court to deny deсlaratory relief may be invoked by general demurrer.
(General of America Ins. Co.
v.
Lilly
(1968)
Appellants claim that declaratory relief should have been granted because such declaration was an appropriate means by which it could obtain a judicial construction of its obligations under the various policies. This may be true under the proper circumstances. However, under the facts of the instant case, declaratory relief was not appropriate. The declaration sought by Farmers wаs a misinterpretation of California law. In addition, a declaration in this case would not resolve the controversy between the parties. Even if the court had issued a declaration stating that the efficient proximate cause analysis was the proper standard to be utilized in determining coverage, controversy would still exist as to what is the efficient proximate cause in each instance. Moreover, the trial court was correct in finding that the declaration requestеd by appellants would be improper. The term “efficient
*724
proximate cause” lacks the certainty of definition necessary to assist the parties in understanding their rights and duties under the policies and in respect to the property damage. The cases which interpret this standard fail to provide a uniform meaning to the term. The term has been described as “ \ . . the one [cause] that sets others in motion . .
(Sabella
v.
Wisler, supra,
The order sustaining the demurrers without leave to amend, the order granting the motions to dismiss and the judgment are affirmed.
White, P. J., and Barry-Deal, J., concurred.
Appellants’ petition for review by the Supreme Court was denied October 16, 1985.
Notes
The trial court’s order provides as follows: “1. The amended complaint fails to state a сause of action, because the loss sustained by the various defendant insureds will have to be individually analyzed as to causation (proximate, concurrent and/or efficient); that if there are multiple concurrent proximate causes, including efficient, of said loss one or more for which there is coverage under plaintiffs’ policy and one or more for which there is an exclusion of coverage, there will be liability of plaintiffs under said insurance policy (State Farm vs. Partridgе, 10 C (3) 94; Safeco vs. Guyton, No. 79-3359-Ninth Circuit Court of Appeal [sic]; Hughes vs. Potomac Insurance, 199 CA (2) 239; Brooks vs. Metropolitan Insurance, 27 C (2) 305; Arata vs. California-Western, 50 CA (3) 821). [¶] 2. The amended complaint to [sic] fails to state a cause of action by reason of misjoinder of the various defendant insureds for the reasons noted in Paragraph 1 above (Section 379 and Section 430.10 (d) C.C.P.) [¶] 3. The amended complaint is dismissed pursuant to Section 1061 C.C.P. for the reasons noted in Paragraphs 1 and 2 above, and the general demurrers are sustained without leave to amend for the same reasons.”
