THE ESSEX FIELD CLUB. 



26l 



Black Gravel 



Yellow Loamy Sand 



Yellow Gravel (very sandy) 



Brown Clay 



Blue Clay 



Clay Stone 



Blue Clay 



Dead Clay Sand 



Dead Grey Rock . . 



Dark Grey Dead Sand 



Black Pebbles 



Live Grey Sand 



Sand and Sea Shells 



Grey Sand 



Sandy Clay mottled 



Grey Sand 



Green Flints 



Chalk 



" The rest level of the water o 

 surface, and after continuous pumpin 



commencing pumping was Soft, from the 

 day and night for 14 days this was lowered 

 to 145ft. from the surface; the rate of pumping was 72,000 gallons per 24 hours. 

 In this boring no attempt was made to obtain water by going into the chalk 

 'formation, and other borings in the immediate neighbourhood have proved that 

 little water is obtained from that source. 2 



" Pumping from this bore-hole is now carried on at from 4,000 to 5,000 

 gallons per hour by means of an air-lift plant, and after heavy continuous work 

 the water level is occasionally lowered to 160 ft. from the surface, but after- 

 wards the water rises rapidly. 



2 The following data kindly supplied to Mi 

 Watney, may be of interest for comparison : 



A. C. Young, F.C.S., by Mr. Reginald 



Well Section Great Baddow Brewery. 



Dug well 



Broken brick rubbish... 



Hard Clay 



Claystone 



Hard Clay 



Clavey Sand ... 

 Pebbles 

 Live Sand 

 Hard Clay 

 Pebbly Sand ... 

 Mottled Clay ... 

 Sand and Stone 

 Sand and Clay 

 Thanet Sand ... 

 Chalk and Flints 



No water in the Chalk. Water came in at 332 ft. 6 in. to 347 ft. and at 359 ft. to 

 368 ft. 



