It is truly amazing that the City has no idea what they are doing. See the note from the City’s attorney:

. . . . “DEP is currently in the process of finalizing its environmental review of proposed project changes, including the possibility of shifting from hoe ramming to blasting for rock excavation at the Jerome Park Reservoir site, and will not make any final decision regarding the use of blasting until that review is completed,” said Susan Amron, deputy chief of the environmental law division of the city’s law department, in a statement. (Riverdale Press, July 31, 2008 online)

Where in the world did hoe raming come from? They forgot to mention the originally approved section of the FSEIS. See below:

. . . . . From Section 8.2.1.7.

“The construction of the New Shaft at this location would be done using
the raised bored construction method. This method involves drilling of a
pilot hole from the surface. A boring drill rig would be assembled at
the bottom of the shaft where the tunnel would terminate, and turned by
a machine at the top. The boring spoils would fall into the tunnel, and
would be removed as the drill is raised from the bottom of the shaft.
Using the new tunnel for access, all the debris would collapse into the
new tunnel and would be removed at the water treatment plant site for
either the Mosholu or the Harlem River Site alternatives. For the
Eastview Site, the material would be removed through the NCA from shafts
upstream of the Reservoir. This method would reduce the impact caused
by construction in the area.

The drilling of the New Shaft via raised bore construction would take
place in the first summer of the scheduled construction period. The new
tunnel lining would be installed before the New Shaft Chamber
construction commences. In response to public comment, construction of
the New Shaft Chamber would occur during the school year with the
concrete pours taking place during the summer months, Saturdays, or
holidays to avoid disturbance of the nearby schools while they are in
session. The construction of the New Shaft Chamber would be
simultaneous with setting the piping in the New Tunnel from either the
water treatment plant or the NCA, depending on the site selection, to
the New Shaft Chamber.

Finally, remember the singlemost important line:

“There would be no surface drilling or blasting in relation to work at the Reservoir.”