It has been recently decided by this court that, on an application to the county commissioners for an abatement of
The county commissioners having exceeded their jurisdiction by awarding costs against the petitioners, it is proper that the writ of certiorari should issue, and that the part of the record by which costs are awarded should be quashed. But the other question which the petition presents is more important.
The taxes assessed by the city of Lowell upon the Proprietors of the Locks and Canals on Merrimack River for the year 1860 included a tax upon property thus described in the valuation of estates for that year:
“ Land adjoining and bordering on the canal, with gate houses, feeders and mason work, and all the canals owned by the Proprietors of the Locks and Canals within the city of Lowell, with the exception of the Pawtucket Canal and its appurtenances, $300,000.”
It appears that the Proprietors of the Locks and Canals are a corporation whose business is to furnish water power to the manufacturing companies in Lowell; that contracts to furnish this power exist between this corporation and the several companies ; and that the stock is owned by the companies in the proportion in which they are entitled to a supply of water under their contracts. The water power is supplied from the Merrimack River by means of the canals above described, with their appurtenances ; and the whole of the power which these works are capable of supplying throughout the whole year is used by the companies who own the stock. But for nine months in the year there is a considerable surplus of water power, capable of a profitable use, but not yet applied to manufacturing purposes. In assessing the several manufacturing companies, there was no valuation made of the water power used by them as a distinct subject of taxation, but each company was assessed upon its mills at a higher rate of valuation by reason of the water power secured by the contract.
Upon these facts, we are of opinion that the petitioners are entitled to relief, because the county commissioners erred in abating the whole of the tax assessed upon the land and structures
The respondents claim that the subject of assessment is really water power, and that this is not liable to taxation as a separate property, distinct from the mills which it drives, or the land to which it gives an additional value. It was decided, in Boston Manuf. Co. v. Newton, 22 Pick. 22, that water power for mill purposes not used is not a distinct subject of taxation, and that water power annexed to mills could only be taxed together with the mills, as contributing to increase their value. The county commissioners seem to have supposed that the property assessed was only water power, as in their certificate of abatement they say that they abate the tax of $2250, on the sum of $300,000, because “ the water power which is taxed for that amount by the assessors should not as a matter of law be taxed.”
But the assessors had not taxed any water power, eo nomine. They had taxed land, and structures upon land. If the water power enjoyed by the several mills, and increasing their value respectively, which was already taxed as a part of the value of the mills, had exhausted the whole productive capacity of the land and structures by which it was created, they should not have been taxed further. But as the agreed facts show that a valuable water power for nine months in the year was created, in addition to all that was used by the mills, there still remained a taxable property which had not been assessed in any form. The land occupied by the canals, and used in connection with them, should be taxed to its owners, so far as its productive value had not been made a subject of taxation as an element of the value of the mills to whose use the water power was appropriated. In other words, if the property taxed had a market value above and beyond its use for the purposes of the mills — if it would sell for any price, subject to the obligation to furnish power to the mills according to their contracts — then to that extent it was not taxed in another form, and should be taxed in the mode adopted by the assessors of Lowell.
The proceedings of the county commissioners must therefore
Writ of certiorari to issue.