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Schedule 2Valuation of Water Undertakings

Part IDetermination of Cumulo Rateable Value

1The Assessor of Public Undertakings (Scotland) (hereinafter referred to as " the Assessor ") shall for the year 1967-68 and each subsequent year determine in accordance with the following provisions of this and the next succeeding Part of this Schedule the cumulo rateable value of lands and heritages occupied for the purposes of a water undertaking, other than excepted premises, and shall enter such value in the valuation roll. In this paragraph " excepted premises " means dwelling-houses, or lands and heritages held by a local water authority under a lease for a period not exceeding twenty-one years.

2The Secretary of State may by order make provision for determining the national average rateable value per unit per day calculated on the basis of the aggregate potential output of water, for a year specified in the order, of all the water undertakings whose values are for the year 1967-68 to be entered in the valuation roll referred to in paragraph 1 above, and such value so determined, or as modified under paragraph 3 below, is in this Schedule known as " the norm ".

3Having regard to the changes in the rateable values of other lands and heritages, the Secretary of State shall keep the norm under review and may, in the year 1971-72 and each year of revaluation thereafter, by order make such adjustments in the provisions for determining the norm as appear to him to be appropriate. Any such order shall commence to have effect in the year in which it is made.

4Not later than 31st December in any calendar year, commencing with the year 1966, each local water authority shall as respects the previous year ascertain and certify to the Assessor, to the nearest ten units, the average number of units per day of the various categories of water described in sub-paragraphs (a) to (f) of paragraph 5 below.

5For the year 1967-68 the cumulo rateable value of the lands and heritages occupied for the purposes of a water undertaking shall be the aggregate of the following—

(a)the average number of units per day of potable water produced by the undertaking and supplied for use within the limits of supply of the local water authority carrying on the undertaking in the year 1965-66, multiplied by the norm;

(b)one half of the average number of units per day of potable water supplied by them in bulk for distribution or use outwith the limits of supply of the local water authority carrying on the undertaking in the year 1965-66, multiplied by the norm;

(c)one half of the average number of units per day of potable water supplied to them in bulk in the year 1965-66, multiplied by the norm ;

(d)the average number of units per day of non-potable water supplied by them in bulk for distribution or use outwith the limits of supply of the local water authority carrying on the undertaking in the year 1965-66, multiplied by such fraction of the norm as may be prescribed by order made by the Secretary of State ;

(e)the average number of units per day of non-potable water produced by them and supplied for use within the limits of supply of the local water authority carrying on the undertaking in the year 1965-66, multiplied (subject to paragraph 6 below) by such fraction of the norm as may be prescribed by order made by the Secretary of State ; and

(f)the average number of units per day of non-potable water supplied to them in bulk in the year 1965-66 multiplied by such fraction of the norm as may be prescribed by order made by the Secretary of State.

6The fraction prescribed by order made under paragraph 5(e) above may, for the purpose of the application of that sub-paragraph to a particular water undertaking, be varied by the Assessor within such limits as may be specified in the order, if in the opinion of the Assessor exceptional circumstances exist in relation to that undertaking.

7(1)The Assessor shall, in respect of each year of revaluation, determine anew the cumulo rateable value pertaining to each water undertaking and for that purpose shall apply the provisions of paragraph 5 above, so however that for the reference in that paragraph to the year 1967-68 there shall be substituted a reference to the year of revaluation, and for any reference in that paragraph to the year 1965-66 there shall be substituted a reference to the year last but one before the year of revaluation.

(2)Where as respects any year (in this paragraph referred to as " the relevant year ") the average number of units per day supplied by a water undertaking, as certified under paragraph 4 above, exceeds or falls short of the average number of units so supplied and certified for the purposes of valuation for the base year by more than such percentage as may be prescribed by order made by the Secretary of State, the Assessor shall determine anew the cumulo rateable value pertaining to that undertaking and for that purpose shall apply the provisions of paragraph 5 above, so however that for the reference in that paragraph to the year 1967-68 there shall be substituted a reference to the year second succeeding the relevant year, and for any reference in that paragraph to the year 1965-66 there shall be substituted a reference to the relevant year.

(3)In this paragraph "base year " means the year for which the valuation pertaining to a water undertaking was last determined by the Assessor.