[411]*411Hammond, C. J.,
delivered the opinion of the Court. Barnes and McWilliams, JJ., dissent. Barnes, J., filed a dissenting opinion, in which McWilliams, J., concurred, at page 424 infra.
The Calvert Cliffs Nuclear Power Plant of Baltimore Gas and Electric Company (the Company) in Calvert County, Maryland, which recently has led to various differences of opinion, scientific and otherwise, is responsible for the question now before us for decision. The legislature of 1968 passed Ch. 493 of the Laws of that year, which is now codified as § 54A of Art. 78 of the Code. The statute became effective July 1, 1968, to provide in pertinent part that:
“No electric company may begin the construction in Maryland of a generating station or any overhead transmission line designed to carry a voltage in excess of 69,000 volts, or exercise the right of eminent domain in connection therewith, without having first obtained from the [Public Service] Commission a certificate of public convenience and necessity for the construction of the station or line.”
The Commission is directed to hold a public hearing on a request for a certificate in the area involved, together with the local governing bodies of the area. Final action is to be taken by the Commission only after due consideration of the recommendabions of the governing bodies, the present and future needs for service, “effect on system stability and reliability, economics, esthetics, historic sites, and, when applicable, the effect on air and water pollution.”
It is agreed that the statute is prospective in operation, Amereihn v. Kotras, 194 Md. 591, 601, and the question presented is whether the Company began construction of the generating station prior to July 1, 1968. After a hearing necessitated by a petition filed with it by the People’s Counsel asking the Commission to require the [412]*412Company to apply for the certificate required by § 54A, the Commission decided that construction had begun before July 1,1968, and therefore the Company did not need a certificate in order to complete the generating station at Calvert Cliffs. In the appeal to the Circuit Court for Anne Arundel County Judge Melvin, using a test of judicial review of a Commission order established by Code (1969 Repl. Vol.), Art. 78, § 97, Scope of Review, held that whether construction had begun before July 1, 1968, within the meaning of § 54A, was a mixed question of law and fact and that “this court is unable to say that the Commission’s decision * * * is ‘unsupported by substantial evidence on the record considered as a whole.’ ”
The appellants, the People’s Counsel, Anne Arundel County, individuals in the area involved, and the Chesapeake Environmental Protection Association, Inc. (its standing is not now challenged) contend that the question presented is solely one of law, rather than the mixed question of fact and law that Judge Melvin saw. The case was decided in the Circuit Court on the record before the Commission, and the evidence before the Commission was the testimony of an engineer of the Company and an employee of the supplier of the nuclear steam supply system and several exhibits, such as the Calvert County Code. There is no dispute as to the facts and we think that the question presented to us is, on the record before us, essentially one of law.
The Company produced testimony that (a) in December 1966 it agreed to buy from General Electric Company a $25,000,000 turbine generator (the testimony was that due to the long time required for manufacture and the “tremendous influx of orders to the turbine generator suppliers,” it was necessary to have a “lead time” of some six years to assure delivery when needed) ; (b) in May 1967 it signed a memorandum of understanding with Combustion Engineering, Inc. for construction of the proposed plant’s nuclear steam supply system (and thereafter made substantial progress payments from time to time); (c) about a week later the deed to the site was [413]*413delivered; (d) three days later the Company made a public announcement of its intent to construct a two-unit nuclear power plant at Calvert Cliffs; (e) immediately thereafter the Company caused to be drilled core borings in the earth of the proposed site to determine the composition and utility of the ground; (f) in June 1967 the Company ordered a second generator from Westinghouse Electric Company at a price of $25,000,000; (g) on July 31, 1967 the Company hired Bechtel Corporation (Bechtel) “to provide services for engineering and construction for the Calvert Cliffs nuclear power plant” (there is nothing in the record to show whether the hiring was in writing or oral, how definitive it was as to scope and time, or what specific services were covered) ; (h) in August 1967 certain seismological studies at the site were contracted for; (i) in December 1967 Bechtel prepared a bar chart showing excavation scheduled for June 1968, and in February 1968 a master flow chart that also estimated that excavation would begin in June 1968; (j) in January 1968 the Company sought and received from Calvert County a permit to “construct a metal shed” on land adjacent to the site (later also acquired by the Company) to use in testing condensor tubes; (k) later in January 1968 the Company filed with the Atomic Energy Commission (AEC) an application for a permit to construct the nuclear generating station (such a permit is required by the Atomic Energy Act of 1954, 42 U.S.C. § 2235, before construction of a nuclear facility can lawfully be begun;1 (1) lumber companies cut marketable [414]*414timber in February 1968; (m) in April 1968 C. J. Langenfelder & Sons, Inc. (Langenfelder) began clearing and grubbing operations; (n) on June 6, 1968 Langenfelder, pursuant to oral directions from Bechtel, confirmed by letter and later by a written contract to do grading and excavation, began to move earth in order to level the site to an elevation of Plus 1. From June 6 to June 30 Langenfelder moved 104,000 cubic yards of earth, the first of the same kind of an ultimate total of 1,850,000 cubic yards, labelled as “unclassified excavation” in both the contract between Bechtel (acting for the Company) and Langenfelder, and in Langenfelder’s invoice to the Company. The Company’s engineer described “unclassified excavation” in contrast to “structural excavation” (both being called for by the contract, as were other categories such as “compacted fill”) as “the more easily removed material,” calling for a lower price than “structural excavation” which was to be “the very deep, hard to remove material,” calling for a higher price.
The record shows that the following events took place after July 1, 1968. (1)' The Commission’s regulations effective both prior to and after July 1, 1968, required that major construction projects of a utility be reported to the Commission within one month following the beginning of such construction. On July 17, 1968 the Company submitted a report showing that the construction period for the Calvert Cliffs plant would be from June 1968 to December 1974. (2) On April 17, 1970 the Commission granted the Company a certificate of Public Convenience and Necessity for the transmission lines from the plant. (3) The Calvert County Building Code requires, subject to penalty for non-compliance, all persons “before erecting or constructing any building in Calvert County” to apply for a building permit.
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[411]*411Hammond, C. J.,
delivered the opinion of the Court. Barnes and McWilliams, JJ., dissent. Barnes, J., filed a dissenting opinion, in which McWilliams, J., concurred, at page 424 infra.
The Calvert Cliffs Nuclear Power Plant of Baltimore Gas and Electric Company (the Company) in Calvert County, Maryland, which recently has led to various differences of opinion, scientific and otherwise, is responsible for the question now before us for decision. The legislature of 1968 passed Ch. 493 of the Laws of that year, which is now codified as § 54A of Art. 78 of the Code. The statute became effective July 1, 1968, to provide in pertinent part that:
“No electric company may begin the construction in Maryland of a generating station or any overhead transmission line designed to carry a voltage in excess of 69,000 volts, or exercise the right of eminent domain in connection therewith, without having first obtained from the [Public Service] Commission a certificate of public convenience and necessity for the construction of the station or line.”
The Commission is directed to hold a public hearing on a request for a certificate in the area involved, together with the local governing bodies of the area. Final action is to be taken by the Commission only after due consideration of the recommendabions of the governing bodies, the present and future needs for service, “effect on system stability and reliability, economics, esthetics, historic sites, and, when applicable, the effect on air and water pollution.”
It is agreed that the statute is prospective in operation, Amereihn v. Kotras, 194 Md. 591, 601, and the question presented is whether the Company began construction of the generating station prior to July 1, 1968. After a hearing necessitated by a petition filed with it by the People’s Counsel asking the Commission to require the [412]*412Company to apply for the certificate required by § 54A, the Commission decided that construction had begun before July 1,1968, and therefore the Company did not need a certificate in order to complete the generating station at Calvert Cliffs. In the appeal to the Circuit Court for Anne Arundel County Judge Melvin, using a test of judicial review of a Commission order established by Code (1969 Repl. Vol.), Art. 78, § 97, Scope of Review, held that whether construction had begun before July 1, 1968, within the meaning of § 54A, was a mixed question of law and fact and that “this court is unable to say that the Commission’s decision * * * is ‘unsupported by substantial evidence on the record considered as a whole.’ ”
The appellants, the People’s Counsel, Anne Arundel County, individuals in the area involved, and the Chesapeake Environmental Protection Association, Inc. (its standing is not now challenged) contend that the question presented is solely one of law, rather than the mixed question of fact and law that Judge Melvin saw. The case was decided in the Circuit Court on the record before the Commission, and the evidence before the Commission was the testimony of an engineer of the Company and an employee of the supplier of the nuclear steam supply system and several exhibits, such as the Calvert County Code. There is no dispute as to the facts and we think that the question presented to us is, on the record before us, essentially one of law.
The Company produced testimony that (a) in December 1966 it agreed to buy from General Electric Company a $25,000,000 turbine generator (the testimony was that due to the long time required for manufacture and the “tremendous influx of orders to the turbine generator suppliers,” it was necessary to have a “lead time” of some six years to assure delivery when needed) ; (b) in May 1967 it signed a memorandum of understanding with Combustion Engineering, Inc. for construction of the proposed plant’s nuclear steam supply system (and thereafter made substantial progress payments from time to time); (c) about a week later the deed to the site was [413]*413delivered; (d) three days later the Company made a public announcement of its intent to construct a two-unit nuclear power plant at Calvert Cliffs; (e) immediately thereafter the Company caused to be drilled core borings in the earth of the proposed site to determine the composition and utility of the ground; (f) in June 1967 the Company ordered a second generator from Westinghouse Electric Company at a price of $25,000,000; (g) on July 31, 1967 the Company hired Bechtel Corporation (Bechtel) “to provide services for engineering and construction for the Calvert Cliffs nuclear power plant” (there is nothing in the record to show whether the hiring was in writing or oral, how definitive it was as to scope and time, or what specific services were covered) ; (h) in August 1967 certain seismological studies at the site were contracted for; (i) in December 1967 Bechtel prepared a bar chart showing excavation scheduled for June 1968, and in February 1968 a master flow chart that also estimated that excavation would begin in June 1968; (j) in January 1968 the Company sought and received from Calvert County a permit to “construct a metal shed” on land adjacent to the site (later also acquired by the Company) to use in testing condensor tubes; (k) later in January 1968 the Company filed with the Atomic Energy Commission (AEC) an application for a permit to construct the nuclear generating station (such a permit is required by the Atomic Energy Act of 1954, 42 U.S.C. § 2235, before construction of a nuclear facility can lawfully be begun;1 (1) lumber companies cut marketable [414]*414timber in February 1968; (m) in April 1968 C. J. Langenfelder & Sons, Inc. (Langenfelder) began clearing and grubbing operations; (n) on June 6, 1968 Langenfelder, pursuant to oral directions from Bechtel, confirmed by letter and later by a written contract to do grading and excavation, began to move earth in order to level the site to an elevation of Plus 1. From June 6 to June 30 Langenfelder moved 104,000 cubic yards of earth, the first of the same kind of an ultimate total of 1,850,000 cubic yards, labelled as “unclassified excavation” in both the contract between Bechtel (acting for the Company) and Langenfelder, and in Langenfelder’s invoice to the Company. The Company’s engineer described “unclassified excavation” in contrast to “structural excavation” (both being called for by the contract, as were other categories such as “compacted fill”) as “the more easily removed material,” calling for a lower price than “structural excavation” which was to be “the very deep, hard to remove material,” calling for a higher price.
The record shows that the following events took place after July 1, 1968. (1)' The Commission’s regulations effective both prior to and after July 1, 1968, required that major construction projects of a utility be reported to the Commission within one month following the beginning of such construction. On July 17, 1968 the Company submitted a report showing that the construction period for the Calvert Cliffs plant would be from June 1968 to December 1974. (2) On April 17, 1970 the Commission granted the Company a certificate of Public Convenience and Necessity for the transmission lines from the plant. (3) The Calvert County Building Code requires, subject to penalty for non-compliance, all persons “before erecting or constructing any building in Calvert County” to apply for a building permit. The application must set forth in detail the location of the site, the size, [415]*415type of material and estimated cost of the building. The Company sought and obtained from Calvert County in January 1969 a permit for a $20,000,000 two-unit electric generating plant.
The petition of the People’s Counsel in this case was filed with the Commission in May of 1969. In the same month, AEC held a two-day hearing at Prince Frederick in Calvert County on the Company’s application for a construction permit and several months later granted the Company a permit to construct a nuclear production facility.
The Commission found that:
“the beginning of fabrication of the major component parts of the generating station and the excavation and other physical activity at the site, coupled with the preparation and development of complete plans and entering into a contract with the general contractor and a substantial amount of performance under that contract by the general contractor, constituted the beginning of construction prior to July 1, 1968, within the meaning of Section 54A of the Public Service Commission Law * *
It was these findings that Judge Melvin found to be supported by substantial evidence.
We find the Commission’s findings to be clearly erroneous. Section 54A forbids “the construction in Maryland of a generating station” without a certificate. If it be assumed—and we do not suggest that the assumption is the fact—that the Company’s contractual directions to suppliers to build generators to be used years later in a station later to be built is part of the beginning of construction of that then physically non-existent station, it is manifest that the construction of the generators was not to be done in Maryland.
The Commission’s findings attribute controlling significance to the moving of earth and other physical activity at the site coupled with the drawing of plans and the [416]*416hiring of a general contractor. All of these things except “excavation,” which we find to have been no more than levelling of the site, were entirely preliminary to the beginning of construction in Maryland of a generating station. They do show evidence of the Company’s undeviating intent to begin and to complete the nuclear generating station on the chosen site—indeed that intent is conceded without reservation by the appellants—but in the determination of whether construction has begun, intent is but one of two tests and of itself is not sufficient. In Rupp v. Earl H. Cline & Sons, 230 Md. 573, 578 (1962), dealing with the meaning of the phrase “commencement of [a] building” under Code (1957), Art. 63, § 15 (which gives a mechanic’s lien claimant priority over a mortgage recorded after the commencement of the building), the Court analyzed the analogous cases of Brooks v. Lester, 36 Md. 65 (1872), Jean v. Wilson, 38 Md. 288 (1873), and Kelly v. Rosenstock, 45 Md. 389 (1876), and found the law to be clear:
“that before there can be the commencement of a building which would give a mechanic’s lien claimant a preference over a recorded mortgage there must be (i) a manifest commencement of some work or labor on the ground which every one can readily see and recognize as the commencement of a building and (ii) the work done must have been begun with the intention and purpose then formed to continue the work until the completion of the building. If either of these elements is missing then there has been no ‘commencement of the building’ within the meaning of § 15 of Art. 63.”
Consequently, we think construction of a generating station has not begun within the meaning of § 54A of Art. 78 without the requisite physical evidence of construction on the site at the critical date, despite the fullest evidence of intent to complete the proposed structure.
The making of plans and the entering into of contracts [417]*417is not enough. In Mayor & C.C. of Balto. v. Shapiro, 187 Md. 623 (1947), we remarked that the issuance of a use permit where the permittee has not begun work does not create a vested right or prevent revocation of the permit. In Bogley v. Barber, 194 Md. 632, 639 (1950) the owner had spent $248.50 on architect’s fees and more money to demolish an old dwelling incident to site preparation. Judge Markell for the Court stated “it would be hard to say that mere expenditure for plans, without doing any work on the property itself [the proposed new structure], created a non-conforming use or any vested constitutional right * * In Francis v. MacGill, 196 Md. 77, 85 (1950), a permit was issued 21 days before the zoning law was changed to prohibit the proposed use. The owners had commenced site preparation and well drilling. The Court held that no rights had vested under the permit, quoting Rice v. Van Vranken, 225 App. Div. 179, 232 N.Y.S. 506, to the effect that “ ‘Adoption of zoning ordinance ipso facto revokes permit for construction of building violating zoning restrictions, where no construction has been begun.’ ”
Anne Arundel County v. Snyder, 186 Md. 342, 347 (1946), is similar. There a man had bought land, had plans prepared by an architect and spent thousands of dollars in grading and landscaping in preparation for the construction of a boatyard. On November 17 he applied for a permit. On November 8 new zoning regulations were adopted that made the proposed use a prohibited one. Judge Henderson for the Court said:
“But it does not follow that the proposed business in the case at bar was established or existing. No permit was issued, and if it had been, it would have conferred no vested right, nor would it have created an estoppel * *
In Ross v. Montgomery County, 252 Md. 497 (1968), developers of a proposed high rise apartment bought land, caused plans costing $56,000 to be prepared, demolished three old houses on the site, caused to be made test bor[418]*418ings and preliminary engineering studies, and completed a single excavation and the installation of a single footing. No more was done within the life of the building permit, which required actual construction to be begun under it within six months, and thereafter the zoning law was changed. It was held that no vested interest or estoppel had been created because construction had not begun.
There remains of the findings relied on by the Commission only the finding that there had been “a substantial amount of performance * * * by the general contractor.” This can only mean “the excavation and other physical activity at the site,” since there is no showing of other acts done or caused to be done by Bechtel prior to July 1, 1968. It is beyond question—and the Company makes no real contention to the contrary—that the cutting down of trees and the grubbing of the land does not amount to the beginning of construction. There is left the moving by earth pushing machines in order to level the site of some 104,000 cubic yards—5.6% of the 1,850,-000 cubic yards that the levelling eventually required. The record strongly suggests and the Company’s witness indicates explicitly that the Company relies largely, if not really solely, on the earth moving in June 1968 to show that construction began that month. The Company’s witness was asked why the Company had reported to the Commission in July 1968 that construction had begun the previous month and he said that:
“It was our judgment that sufficient physical work had been done on the site that constituted construction * * * in our judgment the excavation of 104,000 cubic yards of dirt was sufficient evidence of physical work.”
The Company seeks to meet the test of some authorities that excavating for a foundation is the beginning of construction by labelling the moving of 104,000 cubic yards of earth that was accomplished prior to July 1, 1968 “unclassified excavation” but there can be little if any doubt [419]*419from the pictures of the process and the result, and the other evidence in the record, that it was not foundation excavating, if it be assumed that such excavation would be enough. Bechtel’s letter of June 10, 1968 to Langenfelder refers to and discusses “excavating * * * and the rough grading.” Langenfelder’s bill for $100,800 for the moving of 104,000 cubic yards of earth during the period ending June 30, 1968 at a unit price of $0.97 a yard has opposite the heading “contract number” the explanation “Calvert Cliffs Grading.” Wallace McWilliams, Jr., an engineer who was manager of the Electric Engineering Department of the Company (Engineering), which also has an Electric Construction Department (Construction), was the Company’s witness. He testified that Engineering controls the specifications and designs and that it gives these to Construction to cause the station to be built, and then supervises the construction to see that it is done according to plan. The testimony shows that Engineering and not Construction was the active agent of the Company and in charge of the project prior to July 1, 1968,. McWilliams testified that the purpose of the “unclassified excavation” was “to remove the earth necessary to establish the foundations for the plant.” He said also that unclassified excavation, covers dirt easily removed whereas structural excavation is “the very deep, hard to remove material * * structural excavation * * * only applies to that material which is way down deep in the ground.” Asked the question “prior to July 1, 1968, had any foundation been laid?” McWilliams responded: “None for the plant, no, sir.” He was next asked “had there been the bringing together of any materials such as bricks or mortar or wood or other items on the site for construction?” and his answer was “No.”
We find nothing in the legislative history of § 54A orín the subject matter with which it is concerned to show, or indeed to indicate, that the words “begin construction in Maryland of a generating station” were intended by the legislature to convey a meaning other than that they appear on their face to convey, and ordinarily would con[420]*420vey. Chapter 493 of the Laws of 1968 that became § 54A of Art. 78 originated as Senate Bill 22, a Legislative Council bill, which was item 274 (1) of the Council’s Report to the General Assembly of 1968, appearing at pp. 194-195 of the Report. The bill was inspired by the attempts of a utility to install power lines near or over the Antietam Battlefield.
As introduced, Senate Bill 22 merely added to the list of things a public service company could not do without prior approval of the Commission, the acquiring of any property or property interest by condemnation. The Bill was amended during its passage by the legislature to its present form.
42 U.S.C. §§ 2131 and 2235 require the obtaining from AEC of a construction permit before construction of a nuclear electric generating facility is begun. Regulations here pertinent, offered in evidence below, are found in 10 C.F.R. § 50.10 (b) and provide:
“No person shall begin the construction of a production or utilization facility on a site on which the facility is to be operated until a construction permit has been issued. As used in this paragraph, the term ‘construction’ shall be deemed to include pouring the foundation for, or the installation of, any portion of the permanent facility on the site; but does not include:
“ (1) Site exploration, site excavation, preparation of the site for construction of the facility, including the driving of piles, and construction of roadways, railroad spurs, and transmission lines;
“(2) Procurement or manufacture of components of the facility;
“(3) Construction of non-nuclear facilities (such as turbo-generators and turbine buildings) and temporary buildings (such as construction equipment storage sheds) for use in connection with the construction of the facility ; and
[421]*421“ (4) With respect to production or utilization facilities, other than testing facilities, required to be licensed pursuant to section 104 a. or section 104 c. of the Act, the construction of buildings which will be used for activities other than operation of a facility and which may also be used to house a facility. (For example, the construction of a college laboratory building with space for installation of a training reactor is not affected by this paragraph.) ”
The regulations as to nuclear generating stations, certainly the most sophisticated type of generating stations, seem to apply to nuclear generating stations the general rules as to what constitutes construction and the beginning* of construction.
There being no evidence of legislative intent to the contrary, we must read the meaning of the words “begin construction in Maryland of a generating station” in § 54A as the same as the meaning the opinions and holdings in the Maryland permit-zoning cases cited earlier, involving the vesting of rights, gave the term “construction,” and the same as the meaning the phrase “the commencement of the said building” in § 15 of Art. 63 (the Mechanic’s Lien statute) has been given by the decisions of this Court. The Maryland cases have flatly held that grading the site does not constitute the commencement of the building that is to be erected on the site. Rupp v. Earl H. Cline & Sons, cited earlier, puts it thus at p. 579 of 230 Md.:
“but even if it is assumed (for the purposes of this case) that there was no substantial change of plan and that the owner and builder had a continuing intention — if and when they could get financing and permission — to erect apartments of some type, we think it is apparent that the removal of soil from one part of the development to another even for the dual purpose of [422]*422grading one site to a specified level and filling in the other to the required height was at most a preparatory operation that was not the ‘commencement of the building.’ While the removal of soil had the effect of leveling the apartment site, that fact did not constitute commencement for the purpose of fixing the time to which a lien could relate. Kelly v. Rosenstock, supra. Nor did the grading or leveling — since there was no work on the ground which everyone could readily see and recognize as the commencement of a building, Brooks v. Lester, supra—have the effect of putting the party making the construction loan on notice that the building had béen commenced, and we so hold.
“To hold otherwise would be contrary to the previous decisions of this Court. If any change in the meaning and effect of § 15 (of Art. 63) is either desirable or required that is a matter for the legislature, not the courts, to consider.”
We think the legislature did not change the law as to when construction is begun when it enacted § 54A, but rather that it caused that law to be applied in a new specific area. The Maryland law is supported by two persuasive cases from other jurisdictions. In McClung v. County of Henrico (Va.), 108 S.E.2d 513, 516, McClung was arrested for commencing to build a veterinary hospital after his building permit had expired. His defense was that the permit authorized the work undér the statute which legalized “construction * * * which shall have been started within ninety days * * During the ninety days he removed trees and stumps, graded, set stakes at the four corners of the building to mark the grade levels, hauled a quantity of stone to the site and contracted to have trenches dug and concrete poured for the foundation. The Supreme Court of Appeals of Virginia held, that these doings did not add up to the beginning of construction, citing the Webster’s New International Dictionary (2d Ed., p. 572) definition of construction as follows;
[423]*423“'(1) Process or art of constructing; act of building; erection; act of devising and forming; fabrication; composition; also a thing constructed; a structure. * * * (3) Form or manner of building or putting together the parts of anything; structure; arrangement.’ The word 'construct’ is defined as: 'To bring together, to construct, to pile up, to set in order. * * * (2) To put together the constituent parts of (something) in their proper place and order; to build; form; make; as, to construct an edifice,’ ”
and noting the administrative practice (as having weight) that a building permit was not required for work on land but was required before concrete footings could be poured for the foundation of a building.
In Arkansas Power and Light Co. v. Federal Power Commission, 125 F. 2d 982, the Circuit Court of Appeals for the Eighth Circuit held that the Commission was justified in revoking a permit to build a dam because the permittee had not commenced construction within the prescribed time, although several thousand yards of earth at the base of the site for the darn had been excavated for exploratory trenches, a portion of the foundation had been excavated and some $10,000 spent. The Court upheld the Commission’s finding that the work done was preliminary work, incident only to the commencement of construction and did not constitute the beginning of construction of the dam.
We find significant support for our conclusion that the deeisioias cited above holding that construction had not begun in factual situations analogous to that before us in the fact that the Company did not obtain a building permit from Calvert County or a construction permit from the AEG until months after July 1, 1968, although it would have violated the law under both the local and the federal statute and binding regulations had it commenced construction before obtaining the permits.
To the Company’s argument that all the various steps [424]*424it took and acts it did before July 1, 1968 must be considered together and that their cumulative effect adds up to the beginning of construction, two refuting answers come quickly to mind. First, the Company really relied only on the moving of the earth to level the site as the evidence of the beginning of construction and the law is that such activity does not suffice. Second, no one step or activity was enough to show construction and none lent weight in that regard to the others. We are reminded of Judge McSherry’s observation for the Court in the second Berry will case, Berry v. Safe Deposit Co., 96 Md. 45, 56, that:
“The sum of any number of zeros will always be zero, and this is true in the law of evidence as well as in arithmetic. You may combine as many independent circumstances as you please, and if no one of them has any legal tendency to establish the fact to be proved then all of them taken together can have no greater probative value.”
The order of the Commission finding that construction was begun before July 1, 1968 was not supported by substantial evidence and did not reflect the controlling law.
Order reversed, with costs, and, case remanded to the commission for further proceedings.