APPORTIONMENT FOR THE NORTH METROPOLITAN RIVER SYSTEMS. AND CHARLES 1. Interest and Sinking Fund Requirements. As has been stated on page lxiii, there is but one loan provided for the construction of these two systems. This loan represents the cost of both systems. It is clear that each system should contribute to the interest and sinking fund requirements of this loan in pro'portion to its own particular cost. It is necessary, therefore, to ascertain, as the first step, the actual and relative cost of each system as a whole. The cost of the north metropolitan system, up to March 1, 1896, was $4,876,831.24. Considerable work remains to be done in the finishing of this system, and there are numerous unsettled contracts and claims, including suits for land damages. This system is also to be extended to Wakefield. Altogether, it is estimated that its total cost will be (approximately) $5,030,000. The cost of the Charles River system, up to the same date, was $787,895.26. It is estimated that outstanding claims, comparatively few and small, will bring its total cost up to (in round numbers) $800,000. The total cost of both systems ($5,030,000 +$800,000) will therefore be $5,830:000, which is the exact amount of the loan. Now, $5,030,000 is 86.28 per cent. and $800,000 is 13.72 per cent. of $5,830,000. It follows that 86.28 per cent. of the total cost of both systems is chargeable to the north metropolitan system and 13.72 per cent. to the Charles River system. It is equally clear that 86.28 per cent. of the interest and sinking fund requirements of the total loan should be apportioned to the cities and towns in the north metropolitan system, and that 13.72 per cent. should be apportioned to those in the Charles River system. Having thus fixed the proportions of the two systems as a whole, it is next necessary to determine, upon the basis of valuation as hereinbefore explained, the proportions of the several cities and towns in each system. The arithmetical process requires no elucidation. Having obtained the latter proportions, it will be evident that the cities and towns in the north metropolitan system should pay their respective proportions or percentages (as thus obtained) of the 86.28 per cent. which has been found chargeable to that system; and that the cities and towns in the Charles River system should pay their respective proportions or percentages (as thus obtained) of the 13.72 per cent. found chargeable to the latter system. By reducing or combining the percentage of each city or town with that of the system to which it belongs, we obtain the desired proportions or percentages in which the several cities and towns in both systems should contribute to the interest and sinking fund requirements of the whole loan. The results are tabulated below. We therefore determine and award that the several cities and towns in the north metropolitan and Charles River systems shall annually pay money into the treasury of the Commonwealth, for the term of five years, 1896 to 1900, both inclusive, to meet the interest and sinking fund requirements for each of said years, as estimated by said treasurer, of the metropolitan sewerage loan, authorized and issued for the construction of said systems, and any deficiency in the amount previously paid in, as found by said treasurer, in the proportions shown in the right-hand column of the following table: Table showing the Proportions in which the Several Cities and Towns in the North Metropolitan and Charles River Systems shall pay Money to meet Interest and Sinking Fund Requirements under Sts. 1889, c. 439; 1894, c. 307; 1895, c. 294; and 1896, c. 414. *East Boston and Charlestown districts. † Brighton and portions of Back Bay and Roxbury districts. 2. Cost of Maintenance and Operation. - Separate accounts are kept, as before stated, of the current annual expense incurred by the Commonwealth in maintaining and operating the north metropolitan and Charles River systems, respectively; and there is consequently no occasion for the apportionment of this expense as between the two systems. The proportions in which the cities and towns in each system shall annually pay money to meet the cost of the maintenance and operation of their own system have been computed upon the basis of population, in accordance with the principles and methods hereinbefore indicated, and with the results shown below. We determine and award that the several cities and towns in the north metropolitan and Charles River systems, respectively, shall annually pay money into the treasury of the Commonwealth, for the term of five years, 1896 to 1900, both inclusive, to meet the cost of the maintenance and operation of said systems for each of said years, as estimated by the Board of Metropolitan Sewerage Commissioners and certified to said treasurer, and any deficiency in the amount previously paid in, as found by said treasurer, in the proportions set down in the following table: Table showing the Proportions in which the Cities and Towns in the North Metropolitan and Charles River Systems shall pay Money to meet the Cost of Maintenance and Operation of said Systems, respectively, under Sts. 1889, c. 439; 1894, c. 307; 1895, c. 294; and 1896, c. 414. * Brighton and portions of Back Bay and Roxbury districts. † East Boston and Charlestown districts. Villages of Greenwood and Boyntonville. APPORTIONMENT FOR THE NEPONSET RIVER SYSTEM. This system, though physically related to the Charles River system so far as to have a similar outlet of discharge through the improved sewerage system of the city of Boston, stands alone as regards the provision made for its construction, maintenance and operation. It is sufficient to say that the apportionment for interest and sinking fund requirements has been made on the basis of valuation, and that for cost of maintenance and operation on the basis of population, in accordance with the same general rules and methods as have been applied to the other systems. We determine and award that the several cities and towns in the Neponset River system shall annually pay money into the treasury of the Commonwealth, for the term of five years, 1896 to 1900, both inclusive, to meet the interest and sinking fund requirements for each of said years, as estimated by said treasurer, of the loan authorized and issued for the construction of said system, and also to meet the cost of the operation and maintenance of said system for each of said years, as estimated by the Board of Metropolitan Sewerage Commissioners and certified to said treasurer, and any deficiency in the amount previously paid in, as found by said treasurer, in the proportions set down in the following table : Table showing the Proportions in which the Several Cities and Towns in the Neponset River System shall pay Money to meet Interest and Sinking Fund Requirements, and to meet Cost of Maintenance and Operation, respectively, under St. 1895, c. 406. SPECIAL FACTS AND CONDITIONS. 1. Charles River System. It has been assumed, in making the foregoing apportionments, that the city of Boston would continue, under some contract or arrangement with the Commonwealth, to receive at Gainsborough Street the sewage collected by the Charles River main sewer, and to convey and discharge the same, through its own main sewer, to and at Moon Island. If, as authorized by the original act (St. 1889, c. 439), the latter sewer should be purchased or taken by the Commonwealth and incorporated with the Charles River system, the foregoing apportionments, both for the Charles River system and for the north metropolitan system, would undoubtedly need to be recast and adjusted to the new and materially changed facts and financial conditions which would then exist. 2. Neponset River System. - Authority is given in the act establishing this system (St. 1895, c. 406) for the taking by purchase or otherwise of that portion of the Dorchester intercepting sewer which lies between its Central Avenue terminus and Granite bridge. We are advised by the Board of Metropolitan Sewerage Commissioners that it has been decided to exercise this power at once, or as soon as a more adequate provision shall have been made for the entire cost of this system. We have framed the apportionment on the assumption that this course will be pursued. If for any unforeseen cause the plan should fail to be carried out, a revision of the apportionment for this system also would be necessary. EDMUND H. BENNETT, JOHN E. SANFORD, EVERETT C. BUMPUS, Apportionment Commissioners. Upon March 4, 1886, the Board authorized the chairman to sign the following communication in behalf of the Board: COMMONWEALTH OF MASSACHUSETTS, METROPOLITAN SEWERAGE COMMISSIONERS, 110 BOYLSTON STREET, To His Excellency the Governor and the Honorable Council. Respectfully represents the Board of Metropolitan Sewerage Commissioners, created by chapter 439, Acts of 1889: that it organized in September of that year, and located its offices in the Ames building on Lincoln Street in Boston, which offices were leased for a period of three years from Oct. 1, 1889, with the priv |