OPINION
¶ 1 We have been asked to review the district court’s decision affirming an arbitration award to defendant, Eric Orton dba Orton Excavation (Orton). We affirm.
¶ 2 The arbitration arose out of a contract dispute between Orton and plaintiff, Pacific Development, L.C. (Pacific). In 1994, Pacific, a real estate developer, subcontracted with Orton to perform sewer, water, and storm drain work in a subdivision Pacific was developing. As the arbitrator found, “The work was to be paid for according to various unit prices based upon actual quantities of work performed. Notably, the October 10, 1994 addendum stated ‘Quantities subject to on-site measuring and delivery invoices and/or trucking slips, after installation.’ ”
¶ 3 Orton worked on Plat B and Plat C of the subdivision; however, a dispute arose over the amount Pacific owed to Orton for extra work Orton claimed to have performed on Plat B and Plat C. As a result, Orton recorded a mechanics’ lien on the project and later sought to foreclose it. Pacific responded by filing a complaint in district court alleging wrongful lien, slander of title, and defamation of character. A flurry of counterclaims, third-party claims, and responses to counterclaims followed, after which both parties agreed to arbitrate the matter.
¶4 On June 9, 1997, Pacific and Orton executed a written Agreement to Arbitrate, which stated in part:
[Both parties] acknowledge that the issues relating to the above-referenced Plat B of Riderwood Village have been resolved, and that, therefore, the arbitration will focus on the remaining issues of the dispute, those which related to Plat C, thereby resolving all remaining issues in the case.... The parties agree that they will abide by the Award rendered by the arbitrator and that a judgment may be entered upon the Award in a court of competent jurisdiction.
The arbitration took place in late August and September 1997. Despite the arbitration agreement’s language limiting the arbitration’s scope to issues involving only Plat C, Pacific introduced evidence relating to Plat B. Orton followed suit by introducing its own Plat B evidence. On November 7, 1997, the arbitrator issued an Interim Arbitration Award, which addressed issues involving Plat B as well as Plat C. Pacific filed a Motion for Reconsideration, arguing the arbitrator exceeded his authority by addressing Plat B issues and manifestly disregarded the law. Orton filed an opposing motion.
¶ 5 The arbitrator issued a Final Arbitration Award on December 24,1997. Pursuant
STANDARD OF REVIEW
¶ 6 We first note that few Utah cases address the issues before us. “Because Utah law on th[ese] issuefs] is sparse, and because the provisions of the Utah Arbitration Act are nearly identical to those contained in the Federal Arbitration Act, ... we look to the law of other states and to federal case law for guidance on these issues.”
Buzas Baseball, Inc. v. Salt Lake Trappers, Inc.,
117 Turning to the applicable standard of review, we recognize that “ ‘there is no
special
standard governing [an appellate court’s] review of a district court’s decision’ to confirm, vacate, or modify an arbitration award.”
Id.
at 948 (quoting
First Options of Chicago, Inc. v. Kaplan,
ANALYSIS
¶ 8 Utah’s Arbitration Act limits a trial court’s review of an arbitration award to a narrow set of statutory grounds.
See
Utah Code Ann. § 78-31a-14(1) (1996 & Supp. 1998);
2
Giannopulos v. Pappas,
¶ 9 In this case, Pacific argues vacation of the award was justified because the arbitrator exceeded the scope of his powers by addressing issues not included in the written arbitration agreement and by manifestly disregarding the law. See Utah Code Ann. § 78-31a-14(c) (1998). We address each argument in turn.
¶ 10 In Utah, an arbitration agreement both creates and defines the arbitrator’s jurisdiction.
See Intermountain Power v. Union Pac. R.R. Co.,
¶ 11 Further, an arbitration agreement must be in writing to be enforceable under the Utah Arbitration Act.
See Jenkins v. Percival,
¶ 12 In this case, despite the arbitration agreement’s language limiting the arbitration’s scope to Plat C issues, the arbitrator found that both parties proceeded to introduce evidence concerning Plat B. Paragraph 26 of the Final Arbitration Award states, in part: “During the course of the proceeding each of the parties presented evidence on the disputes relating to Plat B. The Parties clearly submitted those issues to the Arbitrator for resolution.” We accept the arbitrator’s finding that the parties, by their conduct and mutual consent, submitted Plat B issues for resolution, expanding the scope of the arbitrator’s jurisdiction.
See Executone Info. Sys., Inc. v. Davis,
¶ 13 Moreover, we believe Pacific is estopped from crying foul when it was the party that initially introduced Plat B evidence into the proceedings. Although Pacific contends it introduced this evidence only to “establish a course of dealing and expectation between the parties,” the arbitrator found that the issues involving Plat B were not settled. The Final Arbitration Award states:
Pacific’s contention that the Arbitrator lacked jurisdiction to hear and determine issues as to Plat B is rejected. Pacific is correct in stating that the arbitration agreement signed on or about June 9, 1997, represented that the issues relating to Plat B had been resolved [and] that the remaining issues to be resolved at the arbitration related to Plat C. In actuality, the parties had not in fact reached an agreement on the Plat B issues. Pacific’s assertion in its Motion for Reconsideration that the issues on Plat B had been resolved and were not to be part of the arbitration is not supported by the evidence and material provided to the Arbitrator during the course of the Arbitration. In fact, Pacific submitted its Pre-Arbitration Statement to the Arbitrator dated August 24, 1997, which included as the first document in Exhibit “C” a document entitled “Pacific’s Development’s Anended Responses to Claims Concerning Plat B.”
Given the degree of deference given to an arbitrator’s award and in light of the circumstances surrounding this arbitration, we see no basis to disturb that finding. We therefore conclude the trial court did not err in confirming the arbitrator’s award.
¶ 14 Next, we reject Pacific’s contention that the arbitrator exceeded the scope of his authority by manifestly disregarding the law.
3
“Manifest disregard of the law” is a judicially created doctrine based on the statutory prohibition against an arbitrator exceeding his or her jurisdiction.
Buzas Baseball,
¶ 15 Pacific argues the manifest disregard doctrine is satisfied because the arbitrator in this case knew about the good faith and fair dealing duty implied in all contracts, but ignored that legal doctrine when he ruled that the problem between the parties was inherent in the unit price contract. Pacific further argues that by essentially requiring Pacific to have an on-site engineer, the arbitrator relieved Orton of its inherent duty to act in good faith and implied a new term into the contract. 4
¶ 16 We believe, however, that Pacific’s manifest disregard argument simply amounts to a “manifest disagreement” with the arbitrator’s findings and final award. The arbitrator specifically recognized the implied duty of good faith and fair dealing, but concluded that Pacific had not met its burden of proving Orton wasted material. Without a factual basis for Pacific’s allegation, the arbitrator found no support for Pacific’s argument that Orton had breached its implied duty of good faith. Thus, we conclude the arbitrator did not manifestly disregard the law.
CONCLUSION
¶ 18 An agreement to arbitrate must be in writing; however, under standard principles of contract construction, parties may modify an arbitration agreement by mutual consent. According to the arbitrator, the parties in this case did so by introducing evidence relating to Plat B during the arbitration proceedings. Consequently, by submitting Plat' B issues to the arbitrator, the parties expanded the scope of his jurisdiction.
¶ 19 Furthermore, the arbitrator did not exceed the scope of his jurisdiction by manifestly disregarding the law. Pacific failed to satisfy its burden to prove its allegation that Orton wasted material. Thus, the arbitrator had no factual basis to rule that the implied duty of good faith had or had not been breached.
¶ 20 Based on the foregoing, we affirm the trial court’s decision confirming the arbitrator’s final award. We also award Orton reasonable attorney fees incurred on appeal and remand for a determination of those fees.
Notes
. Orton asserts that Pacific has failed to challenge the trial court's decision and has incorrectly directed this court to review the merits of the arbitrator’s decision. We agree. Although it is important to understand the issues surrounding the arbitrator's decision, we are strictly limited to reviewing the trial court's confirmation of the final arbitration award under the relevant statutes. Absent any findings of fact or legal conclusions by the trial court, however, we are left with only the arbitrator’s award. Thus, we examine the final arbitration award to determine whether the arbitrator exceeded his jurisdiction, keeping in mind that we must uphold the award as long as it "draw[s] its essence from the contract” and does not "simply reflect the arbitrator’s own notions of industrial justice.”
United Paperworkers Int’l Union v. Misco, Inc.,
. Section 78-31a-14(l) of the Arbitration Act directs a trial court to vacate an arbitration award if it appears:
(a) the award was procured by corruption, fraud, or other undue means;
(b) an arbitrator, appointed as a neutral, showed partiality, or an arbitrator was guilty of misconduct that prejudiced the rights of any party;
(c) the arbitrators exceeded their powers;
(d) the arbitrators refused to postpone the hearing upon sufficient cause shown, refused to hear evidence material to the controversy, or otherwise conducted the hearing to the substantial prejudice of tire rights of a party; or
(e) there was no arbitration agreement between the parties to the arbitration proceeding.
Utah Code Ann. § 78-31a-14(l).
. Because we agree that Pacific failed to show the arbitrator manifestly disregarded the law, we need not decide whether that doctrine operates in Utah to overturn or modify an arbitration award. See Buzas Baseball, 925 P.2d at 951 n. 8 (analyzing manifest disregard of law but reserving issue of whether doctrine applies in Utah). We conclude only that Pacific would not be able to satisfy its burden if the doctrine were, in fact, recognized in this jurisdiction.
. Orton rebuts this argument by citing the original agreement between the parties. That agreement, concerning Plat C, stated that "Quantities [are] subject to on-site measuring and delivery invoices and/or trucking slips, after installation.” The arbitrator noted this language in the Final Arbitration Award.
. Section 16 allows a trial court to award reasonable attorney fees and costs "incurred incident to any motion authorized by this chapter ... unless precluded by the arbitration agreement.” Utah Code Ann. § 78-31a-16 (1996 & Supp.1998).
