Number. EXAMINATION OF WATER SUPPLIES. WATER SUPPLY OF ABINGTON AND ROCKLAND. Chemical Examination of Water from Big Sandy Pond, Pembroke. NOTE to analyses of 1896: Odor of the first sample, none, becoming distinctly vegetable and grassy on heating; of the second, none; of the third, distinctly vegetable and grassy; of the fourth, faintly veg. etable and mouldy. The samples were collected from a faucet at the pumping station. Microscopical Examination. The total number of organisms per cubic centimeter found in each sample was as follows: No. 15914, 61; No. 16434, 369; No. 16961, 28; No. 17641, 534. ACTON. ACTON. The advice of the State Board of Health to the town of Acton with reference to taking water for a public water supply from the ground in the westerly part of the town may be found on pages 9 and 10 of this volume. Analyses of samples of water collected from test wells in this locality may be found on page 78 of the annual report for 1895. The advice of the Board to citizens of East Acton with reference to taking water for the supply of that village from the water works of the town of Concord may be found on page 10 of this volume. WATER SUPPLY OF ADAMS FIRE DISTRICT, ADAMS. In 1895 a contract was made with the Adams Power Company to furnish an auxiliary supply of water to the Fire District from tubular wells situated at the Zylonite Works in the valley of the south branch of the Hoosac River, below Adams. Water from this source is pumped directly into the distributing system at times when the yield from the other sources is insufficient for the supply of the town. An analysis of a sample of water from one of these wells may be found on page 81 of the annual report for 1895. Chemical Examination of Water from Bassett Brook Reservoir, Adams. NOTE to analyses of 1896: Odor of the first sample, distinctly unpleasant; of the others, none. No. 17286 was collected from the reservoir; the other samples were collected from a faucet supplied with water from the reservoir. Microscopical Examination. An insignificant number of organisms was found in these samples. ADAMS. Chemical Examination of Water from Dry Brook Reservoir in Adams and Cheshire. NOTE to analyses of 1896: Odor, none. The samples were collected from a faucet supplied with water from the reservoir. Microscopical Examination. An insignificant number of organisms was found in each of these samples. WATER SUPPLY OF AMESBURY. Powow HILL WATER COMPANY. Chemical Examination of Water from Tubular Wells supplying Open Basins near Main Street. § June. † January to May. Microscopical Examination. May and August. NOTE to analysis of 1896: Odor, none. The sample was collected at the pumping station on Main Street. An insignificant number of organisms was found in this sample. July and September, three samples. No organisms. AMESBURY. Chemical Examination of Water from Thirty-six Tubular Wells near Market Street. APPEARANCE. Sediment. Chemical Examination of Water from Tubular Test Wells in Amesbury. Odor, none. On heating, a faintly earthy odor was developed.- The samples were collected from tubular test wells near Main Street in Amesbury, 2,000 feet south of the Main Street pumping station. Microscopical Examination. NITROGEN AS Consumed. 1.02 .0002 12.5 .0150 .0000 .02 6.4 .0000 Number. AMESBURY. Chemical Examination of Water from Kimball's Pond, Amesbury. 17436 Sept.11 Distinct. Slight. .28 3.80 1.35 .0016.0200.0182.0018 .35 .0030.0000.41 1.1 17437 Sept.11 Distinct. Slight. 28 3.90 1.45 .0010.0210.0170.0040 .35 .0030.0000.42 1.1 17915 Nov.18 Distinct. Blight. .37 4.30 1.95 .0004.0214.0188.0026.40 .0020.0000.56 1.6 Odor, faintly vegetable, and of the first sample also mouldy. The first sample was collected from the middle of the pond near the surface; the second, from the middle of the pond near the bottom; the third, from the pond near its outlet. This pond is not used as a source of public water supply. Microscopical Examination. No. 17436. Diatomacem, Asterionella, 4; Diatoma, 4; Melosira, 52; Navicula, 2; Tabellaria, 6. Cyanophyceae, Anabona, 38; Clathrocystis, 6; Microcystis, 80. Algae, Protococcus, 18; Staurastrum, 2; Staurogenia, 212. Rhizopoda, Actinophrys, 4. Infusoria, Dinobryon, 2; Mallomonas, 2. Miscellaneous, Acarina, 10; Zoöglia, 20. Total, 452. No. 17437. Diatomacea, Cyclotella, 2; Stephanodiscus, 2; Synedra, 4; Tabellaria, 4. Cyanophy. ceæ, Microcystis, 38. Alga, Protococcus, 16; Staurogenia, 16. Infusoria, Codonella, 4. Miscellaneous, Zooglea, 10. Total, 96. No. 17915. Diatomaceæ, Cyclotella, 10; Melosira, 9; Synedra, 9; Tabellaria, 1. Cyanophyceae, Microcystis, 1. Miscellaneous, Zoöglæa, 20. Total, 50. WATER SUPPLY OF ANDOver. Chemical Examination of Water from Haggett's Pond, Andover. APPEARANCE. Turbidity. Sediment. 1896. 15984 Jan. 27 16397 Apr. 13 16968 July 13 17642 Oct. 13 V. slight. V. slight. .23 3.30 Slight. .15 3.65 1.40 2.90 0.75 Averages by Years. .10 5.85 2.70 1889* 1891† 1892 1.06 1893 18941 .09 .09 18958 1896 .0004.0198.0170.0028.29 .0013.0151.0124.0027 .34 1.6 |.0050.0000 .33 1.1 0000.0000.34 1.2 .0030.0000 .30 1.3 NOTE to analyses of 1896: Odor of the first and last samples, none; of the second, faintly vegetable; of the third, distinctly unpleasant, becoming faintly vegetable on heating. - The samples were collected from a faucet at the pumping station. Microscopical Examination. An insignificant number of organisms was found in each of these samples. § February, March and April. |