104 
ARTESIAN WELLS ON THE ATLANTIC COAST. 
[BULL. 138. 
Under the lower marl or in the base of the Navesirik formation. — Many 
of the most satisfactory wells in southern New Jersey are at this hori- 
zon, and only a few wells which have penetrated it have failed to obtain 
water. Many of the wells flow above the surface. It is particularly 
well adapted for the supply of the Monmouth County ocean resorts. 
As it is underlain, probably throughout, by lower water horizons, there 
are several chances for finding water at successive depths within its 
area. The wells which have penetrated the Lower Marl are as follows: 
Locality. 
Depth. 
Remarks. 
Red Bank, 5 pipes 
Ocean Beach , 
Do 
Asbury Park 
Rurnseii Neck 
Ocean Grove 
Key East 
Lake Como 
Sea Girt 
Mantoloking 
Bay Head 
Spring Lake 
Freehold 
Freehold, li miles north 
Lakewood 
Greenwich 
Magnolia 
Medford 
Marlton, 1£ miles south.. 
Seabright, 6 wells 
Shrewsbury 
Feet. 
80-90 
480 
485 
383 
210? 
420 
535 
570 
790 
710 
465 
148-172 
50 
475 
690 
91 
183 
155 
125 
200 
165 gallons per minute. 
Flows. 
Flows 35 feet above surface. 
65 gallons per minute. 
60 gallons per minute. 
40 gallons per minute. 
Not utilized? 
Satisfactory. 
Much. 
25 gallons per minute. 
250 gallons per minute. 
Satisfactory supply. 
No water. 
Satisfactory. 
Satisfactory supply. 
Do. 
210-gallon flow. 
No water. 
No water was found, or at least reported, from this horizon at Glass- 
boro, Sewell, and Wenonah. The failure of the wells at Glassboro- 
may indicate that the water-bearing conditions at this horizon do not 
extend iu that direction, or possibly the water may have been passed.. 
The Lower Marl fossils are reported from 650 and the boring extended 
to 690 feet. It is also possible that the water horizon is here a few feet 
farther below the marl than usual, and would have been found a short 
distance below the point at which boring was discontinued. The areas 
underlain L y this water horizon are shown in the map, PI. II, and in 
sections on i '!. III. Che rate of dip is indicated in the sections. 
In Re<V)ank formation. — This formation has proved to be a water 
bearer over a considerable area, south of the latitude of Philadelphia, 
which is indicated on the map, PI. II. Possibly it may continue for 
some distance to the northeastward, but no explorations have been 
made between Medford and Lakewood which would throw light on this 
question. Its relations in the Medford to Marlton region have been 
discussed in detail by Mr, 'Woolman, who has ascertained that it has a 
