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ARLINGTON.

WATER SUPPLY OF ARLINGTON.

Chemical Examination of Water from the Storage Reservoir of the Arlington

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Odor of the first sample, vegetable and sweetish; of the second, faintly sweetish, becoming stronger on heating. The samples were collected from the reservoir, near the gate-house.

Microscopical Examination.

No. 17143. Diatomaces, Asterionella, 8; Melosira, 28; Synedra, 40. Cyanophyceae, Anabæna, 1,000; Clathrocystis, 480. Algae, Cosmarium, 4; Pediastrum, 24; Protococcus, 64; Scenedesmus, 48; Staurastrum, 12. Infusoria, Peridinium, 4. Vermes, Rotifer, 4. Crustacea, Daphnia, .04. Miscel laneous, Zoöglæa, 40. Total, 1,756.

No. 17375. Diatomaceæ, Synedra, 16. Cyanophyceae, Anabana, 900; Clathrocystis, 450. Algæ, Pediastrum, 36; Protococcus, 8; Scenedesmus, 12. Infusoria, Ceratium, 4; Peridinium, 4. Total, 1,430.

Chemical Examination of Water from Tubular Wells at East Lexington.

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NOTE to analyses of 1896: Odor, none, except in the August sample, which had a faintly vegetable odor, becoming stronger on heating. A vegetable odor was also developed on heating the samples col lected in June and December. The samples were collected from a faucet at the pumping station.

Microscopical Examination.

The average number of organisms per cubic centimeter found in these samples was 533, consisting chiefly of Crenothrix.

ASHBURNHAM.

ASHBURNHAM.

Number.

Chemical Examination of Water from Upper Naukeag Pond, Ashburnham.

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15903 Jan. 20 Slight. Slight. .13

16445 Apr.21 || Slight. Slight. 16963 July 13 Distinct. Slight. 17636 Oct. 13 Slight. Slight.

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0.40

.12 1.60 0.55

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NOTE to analyses of 1896: Odor of the first two samples, very faint or none; of the third, decidedly mouldy and grassy; of the fourth, faintly vegetable, becoming also mouldy and grassy on heating. The samples were collected from the pond, about 4 feet beneath the surface.

Microscopical Examination.

The total number of organisms per cubic centimeter found in each sample was as follows: No. 15903, 10; No. 16445, 45; No. 16963, 347, consisting chiefly of Tabellaria; No. 17636, 90.

ASHLAND.

The advice of the State Board of Health to the town of Ashland relative to taking water from the ground in the valley of the Sudbury River west of the town for the purposes of a public water supply may be found on pages 10 and 11 of this volume.

Number.

ASHLAND.

Chemical Examination of Water from a Tubular Test Well in the Valley of the Sudbury River in Ashland.

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Odor, none. The sample was collected from a tubular test well, on the southerly side of the Sudbury River, about 1 mile above the village of Ashland.

No organisms.

Microscopical Examination.

WATER SUPPLY OF ATHOL. ATHOL WATER COMPANY.

Chemical Examination of Water from the Large Reservoir in Phillipston.

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1896.

16335 Mar.26 Distinct. Blight. 0.52 3.00 1.35.0004 .0172.0130.0042 .08 .0050.0001 0.63

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0.4

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17052 July 24 Decided. Cons. 0.35 4.30 1.50

17422 Sept. 9 Decided, Slight.

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17907 Nov.18 Decided, Cons.

0.90 4.65

green.

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NOTE to analyses of 1896: Odor, generally faintly vegetable and sweetish; in May, also mouldy. A fishy odor was observed in the sample collected in March. The samples were collected from the reservoir.

Iron.

ATHOL.

Microscopical Examination of Water from the Large Reservoir in Phillipston.

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ATHOL.

Chemical Examination of Water from Newton (Buckman Brook) Reservoir and its Tributaries in Athol.

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Odor, none. — The first sample was collected from the reservoir; the second, from a brook entering the reservoir from the west; the third, from a brook entering the reservoir from the south-west; the last, from a brook entering the reservoir from the south-east.

Microscopical Examination.

An insignificant number of organisms was found in the first sample; in the other samples no organisms were found.

WATER SUPPLY OF ATTLEBOROUGH.

Chemical Examination of Water from the Well of the Attleborough Water Works.

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