PER CURIAM: This case comes before the court on defendant’s motion, filed March 9, 1979, moving that the court adopt, as the basis for its judgment in this case the recommended decision of Trial Judge Thomas J. Lydon, filed January 31, 1979, pursuant to Rule 166(c), on plaintiffs motion and defendant’s cross-motion for summary judgment, plaintiff having filed no request for review thereof by the court and the time for so filing pursuant to the Rules of the court having expired. Upon consideration thereof, without oral argument, since the court agrees with the trial judge’s recommended decision, as hereinafter set forth, it hereby grants defendant’s motion and affirms and adopts the said decision as the basis for its judgment in this case. Therefore, it is concluded that the administrative decision under review is supported by substantial evidence and is otherwise correct as a matter of law. Accordingly, plaintiffs motion for summary judgment is denied, defendant’s cross-motion for summary judgment is granted and plaintiffs petition is dismissed.
[183]*183OPINION OF TRIAL JUDGE
LYDON, Trial Judge:
This case comes before the court on motions for summary judgment1 which present for Wunderlich Act review (see 41 U.S.C. §§ 321-22) a decision of the Department of Agriculture Board of Contract Appeals (hereinafter the Board), AGBCA No. 365, 76-1 BCA ¶ 11,674, denying plaintiffs claim for an equitable adjustment under the "Differing Site Conditions” Article (also referred to as the changed conditions clause) of a contract between plaintiff and the Forest Service, United States Department of Agriculture. Plaintiff challenges the Board’s decision as being erroneous as a matter of law and as lacking substantial evidence relative to certain of its factual findings. For reasons stated herein, it is concluded that the administrative decision under review is supported by substantial evidence and is otherwise correct as a matter of law. Therefore, plaintiffs motion for summary judgment should be denied, defendant’s cross-motion for summary judgment granted, and plaintiffs petition dismissed.
I
Plaintiff entered into a construction contract (No. 39-3728) dated July 31,1970, with the Forest Service, wherein it agreed to perform certain reconstruction work on the Mad River Road located in the Six Rivers National Forest in northern California.2 Plaintiff, as the lowest of eight [184]*184bidders who responded to a solicitation issued on June 22, 1970, had been awarded the contract for $59,915 and had agreed to perform the contract work within 60 calendar days after receipt of a notice to proceed from the Forest Service.3
In substance, the contract was directed at repairing seven storm damaged sites. The principal work items specified in the contract were 3.5 acres of clearing and grubbing, 15,855 cubic yards of unclassified excavation, and preparation and placement of 2,730 cubic yards of filter material for use as filter blankets. The dispute in this case centers on the preparation of the filter material, the raw ingredient of which was gravel. The contract supplemental specifications (Item 215) provided in pertinent part:
Gravel bars along Mad River within U.S. Forest land are designated as a filter material source. These are located 1.8 miles northwesterly of the project entrance.4
The preparation of filter material which would meet contract specifications required the use of a screening plant so as to separate out various size rock from the aggregate including separation of unwanted fines. Fines are not defined in the record. Ostensibly, fines are a powder-like substance that adhere to rock and generally must be washed away. Plaintiffs screening plant components were delivered to the gravel bar site it had selected, with Forest Service approval, on September 9, 1970.5 Between September 9 and September 22, 1970, plaintiff was engaged, inter alia, in assembling the screening plant. The screening plant was operational on September 22, 1970.
[185]*185In general, plaintiffs contract operations required the use of water for compacting earth, controlling dust, hydromulching,6 and screening plant activities. Plaintiff anticipated that the Mad River, either from its surface or subsurface flow, would provide an adequate supply of water for contract operations. The Mad River was about 1.8 miles from the contract work site.
A small amount of rainfall (0.58 of an inch) was recorded in the Mad River watershed during the month of June 1970. No rainfall at all was recorded in this area for the months of July, August, September and up until it rained on October 19, 1970. It is to be noted the annual record rainfall in this area was greater for 1970, some 120 percent over normal, than it was for the four preceding years. This was due in large measure to the abnormal amount of rainfall which the area experienced in January 1970, a fact noted by plaintiffs hydrology expert. On September 28, 1970, the surface flow of the Mad River ceased. While not crystal clear from the record or the Board’s findings, it would appear that the subsurface flow also ceased on September 28 or the following day at the latest. It is conceded that adequate quantities of water were not available to plaintiff from the Mad River for contract operations from September 28 until October 20, 1970, when rains on October 19 restored the flow to the Mad River. The only contract operation which plaintiff emphasizes as being affected by the lack of water was the production of filter material by means of the screening plant. During this 22-day dry period, plaintiff hauled water to the screening plant site from other sources.7
Plaintiff, contending that the unavailability of water for 22 days constituted changed conditions, sought to recover $44,665.58, plus interest, at the administrative level. This amount, according to plaintiff, represents the additional costs and expense it incurred because of the unavailability of water. The Board in denying plaintiffs claim made no quantum determination.
[186]*186II
The basic question before the Board was whether the lack of water in the Mad River during the period September 28, 1970 — October 20, 1970, entitled plaintiff to an equitable adjustment under the Differing Site Conditions Article of the contract.8 The Board found that the subsurface or latent physical conditions at the site did not differ materially from those indicated in the contract and thus a category one changed condition situation was not present. The Board also found that the unavailability of water in the Mad River during the period in question was the result of weather conditions and that such consequences, under the circumstances of this case, were not changed conditions under category two of the contract Article in question. The Board further found that the contract was silent as to any source of water needed for screening filter gravel and that the drought9 condition complained of was not unexpected although its duration was not foreseeable.
Generally, the government, under the standard Differing Site Conditions Article, does not assume an obligation to compensate a contractor for additional costs or losses it incurs resulting solely from weather conditions, which neither party expected or could anticipate and not from any act or fault of the government. Weather conditions generally are considered to be acts of God. Neither party is obligated to the other for additional costs or price increases resulting solely from acts of God.10 Arundel Corp. v. United [187]*187States, 103 Ct. Cl. 688, 711-12 (1945), cert. denied, 326 U.S. 752 (1945). Neither plaintiff nor defendant can be faulted in any way for the lack of flow in the Mad River at times material herein.
It is clear that the lack of surface and subsurface flow in the Mad River during the period September 28, 1970— October 20, 1970, resulted from inadequate rainfall in the river’s watershed (see page 4, supra). The flow of the river and rainfall are so intertwined as to make it impossible to separate the river conditions from the weather. The record demonstrates clearly that weather was the dominant factor which actually determined the nature of river conditions during the period in issue. Weather, as indicated previously, is not a risk which is shifted to defendant via the changed conditions clause. Hardeman-Monier-Hutcherson v. United States, 198 Ct. Cl. 472, 485-86, 458 F.2d 1364, 1370-71 (1972).
—A—
In denying a changed conditions claim in Arundel Corp. v. United States, supra, 103 Ct. Cl. at 711-12, the court stated:
* * * It is a general principle of law that neither party to a contract is responsible to the other for damages through a loss occasioned as a result of an act of God, unless such an obligation is expressly assumed. Here, the contract was silent in that regard and whatever loss plaintiff may have sustained must be borne by it, and not by the Government. * * *11
[188]*188There is no provision in this contract where the government expressly assumed the obligation to be responsible to plaintiff for all losses occasioned by an act of God. However, plaintiff maintains that the contract contained implied representations sufficient to come within the purview of Article 4a. While express representations as to the nature of conditions to be encountered during contract performance are not absolutely necessary to the establishment of a claim under category one of Article 4a, the contract documents must contain a reasonably plain or positive indication that the conditions to be encountered would be other than those actually encountered at the time of performance, Pacific Alaska Contractors, Inc. v. United States, 193 Ct. Cl. 850, 863-64, 436 F.2d 461, 469 (1971).
Under category one of the Differing Site Conditions Article, a contractor may be entitled to an equitable adjustment if it finds conditions at the site materially different from those shown or indicated in the contract. Category one recovery will be denied if the contract documents do not "show” or "indicate” anything about the alleged changed condition. United Contractors v. United States, 177 Ct. Cl. 151, 161, 368 F.2d 585, 595 (1966).
Plaintiff suggests that the Forest Service warranted and guaranteed in the contract documents that the Mad River would provide sufficient water to plaintiff for contract operations. A reading of the contract documents will not support such a broad suggestion.12 Plaintiff ostensibly recognizes this fact for it argues that its reading of various contract provisions led it to anticipate that water from the Mad River would be available to it throughout contract performance. Thus, plaintiff argues, the Forest Service at least implied a warranty that water from the Mad River would be available for contract purposes.
[189]*189Plaintiff relies primarily on two contractual provisions in support of its implied warranty argument. The first provision, Item 215, relates to the location of gravel bars as a source for filter material and is set out at page 3, supra. This provision makes no mention of water and while it does reference the Mad River it does so only to indicate the location of filter material. One cannot reasonably read into this provision a warranty that water would be available for contract purposes.13 See page 12, infra.
The second provision relied on by plaintiff is contained in Item 403 relating to hydromulching, inter alia. That provision, part 2.5, provides:
Water — Water for hydromulching is available from the Mad River, 1.8 miles from the project. The Forest Service does not guarantee the source as to the quantity of water readily available.
Reasonably read, this provision cannot be interpreted as constituting a warranty by the Forest Service that water from the Mad River would be available for contract purposes. Plaintiff seeks to avoid the rather plain meaning of the second sentence of part 2.5, supra, by suggesting that "readily available” meant that in the case of a lack of surface water, water could always be mined from the subsurface flow of the river by special equipment.14 Such a reading of "readily available” does not seem reasonable under the circumstances of this case. It seems more reasonable to interpret "readily available” to mean that while the Mad River was the closest (1.8 miles) water source, it usually dried up in the late summer or early fall [190]*190months and a contractor might have to use water from other sources not readily available, e.g., the Ruth Reservoir some 10 miles away. See Firestone Tire & Rubber Co. v. United States, 195 Ct. Cl. 21, 30, 444 F.2d 547, 551 (1971). This interpretation seems more compatible with a reasonably intelligent person acquainted with the contemporary circumstances. Hol-Gar Mfg. Corp. v. United States, 169 Ct. Cl. 384, 388, 351 F.2d 972, 975 (1965). The clear thrust of the second sentence of part 2.5, supra, certainly militates against finding that the Forest Service guaranteed that water would be available at all times from the Mad River for contract operations. Finally, it is noted that water was available to plaintiff from the Mad River for hydromulching operations required by the contract. No claim is made that plaintiffs hydromulching operations were affected by a lack of water from the Mad River. Accordingly, a relevant reading of part 2.5 establishes no contract violation. Plaintiffs effort to read the hydromulching specification into the filter material specification seems most strained.15
In further support of its claim for category one changed conditions, plaintiff claims to have relied to its detriment on a Forest Service map (designated in the record as plaintiffs exhibit A) of the Six Rivers National Forest. Plaintiff contends that this map, which contained a solid blue line indicating the Mad River, represented that the Mad River has a perennial flow. The map plaintiff relies upon was not provided to it as part of the contract package, nor was it in any way referenced in the contract documents. It was not made available to plaintiff for the specific use of this project. As such it cannot be fairly viewed as a reasonably plain or positive indication in the contract documents sufficient to support a claim under category one of Article 4a. See Pacific Alaska Contractors, Inc. v. United States, supra, 193 Ct. Cl. at 863-64, 436 F.2d at 469. In any event the Board’s decision, supported by [191]*191substantial evidence, found that this map was not a reliable basis for determining matters relating to the flow of the Mad River. Indeed, plaintiffs expert so testified. The map in question was a visitor’s map of the forest made available to the general public for informational purposes. Mr. Robinson, who prepared plaintiffs bid, testified that he acquired the map from the Forest Service because he was unfamiliar with the job site area. Moreover, while plaintiff relies on the solid blue line as indicating perennial flow, which plaintiff interprets to mean continuous availability of water, the United States Geological Survey in its booklet, "Topographic Maps” explains the solid blue line symbol in pertinent part as follows: “Water features are printed [on maps] in blue and are generally classified as either perennial or intermittent. Perennial water features contain water most of the year (except for infrequent and extended periods of drought), and are shown by solid lines. Intermittent water features contain water only part of the year and are indicated by broken lines * * *”16 Accordingly, it was unreasonable for plaintiff to read the solid blue line as indicating that water would always be available to it for contract performance. Perennial flow indications are not a warranty that water will always be available from a river so designated. To the extent that plaintiff relied on the above-mentioned visitor’s map in interpreting the contract, it did so at its peril.
The construction and interpretation plaintiff seeks to place on various provisions of the contract to the effect that the Forest Service impliedly warranted the availability of water in the Mad River during the period of contract performance in September — October 1970 is not within the "zone of reasonableness.” Bishop Eng’r Co. v. United States, 180 Ct. Cl. 411, 416 (1967). Moreover, it would be unreasonable to expect the Forest Service to warrant and [192]*192guarantee the availability of water, either surface or subsurface, from the Mad River for contract performance during the months of September — October because it was well known in the locality that the Mad River usually dried up for some period of time during the late summer and early fall months. See Bateson-Stolte, Inc. v. United States, 158 Ct. Cl. 455, 459-60, 305 F.2d 386, 389 (1962). The assumption by the government of the risks of acts of God, by way of payment of increased costs to a contractor occasioned by such acts, must be established by clearer and more definitive language than is present in the contract here in question, Lenry, Inc. v. United States, 156 Ct. Cl. 46, 53, 297 F.2d 550, 553 (1962).
There were no express representations nor were there any positive indications in the contract documents that would induce reasonable bidders to believe that water would be available from the Mad River at all times during the late summer and early fall months for contract performance. Accordingly, there were no changed conditions within the meaning of category one of the Differing Site Conditions Article. Pacific Alaska Contractors v. United States, supra, 193 Ct. Cl. at 863-64, 436 F.2d at 469; compare with Beacon Constr. Co., ASBCA No. 7675, 1963 BCA ¶ 3677.
The above discussion also supports the Board’s conclusion that "whether this water was available immediately adjacent to the screening plant or whether this was water to be hauled from other sources such as the Ruth Reservoir was a matter to be resolved by TEI [plaintiff].” Indeed, Robinson, plaintiffs vice president and bid estimator, testified that nothing in the contract said it had to use water from the Mad River. Merely because the Mad River is in the area of the contract work site does not justify finding a warranty that water from said river would be available for plaintiffs use at all times during contract performance absent contract provisions establishing such a warranty. See Lenry, Inc. v. United States, supra. See also Chris Berg, Inc. v. United States, 182 Ct. Cl. 23, 389 F.2d 401 (1968); compare with S. S. Mullen, Inc. v. United States, 182 Ct. Cl. 1, 389 F.2d 390 (1968).
I agree with the Board that a category one changed condition has not been established.17
[193]*193—B—
Plaintiff also seeks recovery under category two of the Differing Site Conditions Article, supra, (see page 5 note 8). Generally, a category two changed condition claim embraces questions of fact. Accordingly, Board findings relative to what site conditions existed at the time the contract was entered into and thereafter are usually questions of fact which are entitled to finality unless subject to the derogatory language of the Wunderlich Act, supra. Arundel Corp. v. United States, supra, 207 Ct. Cl. at 97-98, 515 F.2d at 1123. The category two changed conditions on which plaintiff premises its claim, i.e., the lack of surface and subsurface flow in the Mad River during the period September 28 — October 20, 1970, were the result of weather conditions and thus were properly considered by the Board to be acts of God and not within the coverage of said article. See pages 5-7, supra.18
The Board observed that, "[t]he drought condition experienced in 1970 was not unexpected although its duration was not foreseeable.” There is substantial evidence in the record supporting this statement.
[194]*194Plaintiff was aware, as a result of its prebid investigations, that the Mad River usually dried up in the late summer — early fall months. It was told by a local rancher that the surface flow of the river usually dried up for 2 or 3 days but that subsurface flow, obtainable through mining efforts, could produce available water for contract operations. Accordingly, it was foreseeable that annual drought conditions could result, as found by the Board, during short periods of time when the surface flow of the Mad River would cease. Plaintiff concedes this point. See Fort Sill Associates v. United States, 183 Ct. Cl. 301, 307 (1968).
Plaintiffs case rests on the subsurface flow of the river which plaintiff assumed, on the basis of its conversations with the local rancher, would always provide available water regardless of surface drought. Information on the subsurface flow of the Mad River is sparse in this record. No recorded data, with any official status, as to subsurface flow is available in the record. Instead, there is generalized and hearsay statements and opinions as to what one might expect by way of subsurface flow during short periods of surface drought.
As to plaintiffs reliance on the rancher’s information that subsurface mined water in the riverbed could provide adequate water for plaintiffs contract needs, the Board found that this information did not specify a quantity of water such as plaintiff required to operate its screening plant.19 The record supports this finding although the Board failed to state any definitive conclusion or inference which might follow from such a finding.
A rational explanation, in context, of the rancher’s information as to the adequacy of water for contract performance by plaintiff would appear to be that subsurface water might be available for some period of time, e.g., 2 or 3 days after a surface drought. Accordingly, what the rancher told plaintiff might well have been correct as to droughts of 2 or 3 days. Had the rancher, on whom [195]*195plaintiff relied so heavily in his prebid investigation, testified he may well have indicated also that subsurface water would not be available if the drought were 3 or more days. In considering the information which the rancher supplied plaintiff as to subsurface flow during surface drought periods, it must be remembered that the drought in issue was unprecedented, unanticipated, and unforeseeable in duration. That is the significant point here.20
The Board found that plaintiff made a reasonable site investigation, a fact emphasized by plaintiff. That site investigation revealed a heavy flowing river. On this record, it is not unreasonable to assume a good subsurface flow existed as well although there is no definitive evidence in the record on the matter. That condition, which existed at the time of the execution of the contract, did not reflect drought conditions. The drought condition occurred on September 28,1970, almost 2 months after execution of the contract. Under such facts, the Differing Site Conditions Article will not support a changed conditions claim. Sec Arundel Corp. v. United States, 96 Ct. Cl. 77, 116 (1942). This situation is to be contrasted with the situation present in Briscoe v. United States, 194 Ct. Cl. 866, 442 F.2d 953 (1971), upholding a changed condition claim found by an administrative board, where the condition, a pond from which the contractor anticipated obtaining water for use in contract performance, existed on the day the contract was executed but was not later available to the contractor during contract performance because the third-party owner of the pond refused to allow the contractor to use water therefrom. Plaintiff relies heavily on the Briscoe case but its reliance is misplaced. In addition to the distinction between this case and Briscoe evident in the discussion, supra, it is to be observed that Briscoe was not an act of God situation but instead involved, in essence, a man-made condition. Briscoe involved acts of the government and of the third-party pond owner which related to the efforts of the contractor to utilize, as it anticipated at the time of bid and contract execution, pond water for contract perform-anee.[196]*19621 On the Briscoe facts, a finding of changed conditions was understandable. Sec Hoffman v. United States, 166 Ct. Cl. 39, 49, 340 F.2d 645, 651 (1965). Such a finding is not permissible on the facts present in this case.
The record clearly supports the Board’s conclusion that the duration of the drought was unforeseeable. The record also discloses, and there is no dispute about the fact, that the drought of 22 days was not anticipated nor expected by either party. It seems further agreed that the duration of the drought was unprecedented. Plaintiff argues that because of the unprecedented nature of the drought, a category two changed condition existed. Case law will not support plaintiffs argument. Where climatic conditions produce unexpected, unanticipated and unprecedented weather conditions which affect contract performance, such weather conditions, deemed to be acts of God, generally are not within the purview of the Differing Site Conditions (changed conditions) Article. See pages 5-7, supra; Banks Constr. Co. v. United States, 176 Ct. Cl. 1302, 1325, 364 F.2d 357, 371 (1966) (abnormal rainfall); Carman v. United States, 143 Ct. Cl. 747, 751-52, 166 F. Supp. 759, 762 (1958) (severe flood); Warren Bros. Road v. United States, 123 Ct. Cl. 48, 79, 105 F. Supp. 826, 828 (1952) (unusual quantities of rain); Arundel Corp. v. United States, supra, 103 Ct. Cl. 688 (unanticipated hurricane); Barnard-Curtiss Co. v. United States, 257 F.2d 565, 568 (10th Cir. 1958), cert. denied, 358 U.S. 906 (1958) (an unprecedented and extraordinary flood of unusual proportions); but see Bosen & Dybevik Constr. Co., AGBCA No. 243, 69-1 BCA ¶ 758122 and compare with Concrete Constr. Corp., IBCA No. 432, 65-1 BCA ¶ 4520.
[197]*197Plaintiff has failed to show that it encountered a category two changed condition. The Board’s determination to this effect was correct in fact and law. The drought conditions plaintiff complains about resulted solely from extended dry weather conditions which can properly be classified as an act of God.