SOME ESSEX WELL-SECTIONS.
175
(47.) Pentlow.—1895.
Made and communicated by Mr. G. Ingold.
Small supply of water at 18 feet.
(1, S.W.) Purfleet.—Thames Paper Mills, formerly St. Louis
Park Mills ; south of the railway, less them half-a-mile
eastward of the station. Five wells.
At the marsh level, ? about 10 feet above Ordnance Datum.
1 has been published in "The Geology of London," vol. ii.,
p. 31 (1889). It is close to the railway, at the eastern end of the
Company's ground.
2. Near the railway, at the western end of the Company's land.
Communicated by Mr. E. Reed, manager.
About 20,000 gallons of water [? per hour] got at full tide, less at
low tide.
The rest made and communicated by Mr. R. D. Batchelor, with
some additions from Mr. Reed.
3. About half way between 1 and 2. 1891.
At 243 feet 5 gallons of water a minute, and little salt. Boring
tested, at 268 feet 6 gallons a minute ; at 368 feet about 90 gallons
an hour ; at 410 feet about 180 gallons an hour; at 443 feet about
30 gallons a minute, and salt. Mr. Reed notes that 1,200 gallons of
fresh water an hour were got ; that salt water was got in the first 200
feet of chalk, and fresh water in the last 100.