l.
Other pertinent construction details, such as slot size and
percent open area of screen, type of screen, and manufacturer of
screen.
m.
Well location by coordinates. A plan sheet shall also be included
showing the coordinate system used and the location of each well.
A plan sheet is not required for each well installation diagram;
multiple wells may be shown on the same sheet.
n.
Static water level upon completion of the well.
o.
Special problems and their resolutions; e.g., grout in wells, lost
casing, or screens, bridging, etc.
p.
Description of surface completion.
3.13.3
Well Development Records
**************************************************************************
NOTE: Delete item k. if not applicable for the
project.
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A well development record shall be prepared for each well installed under
the supervision of the geologist present during well installation
operations. Information provided on the well development record shall
include, but not be limited to, the following:
a.
Date, time, and elevation of water level in the well, before
development.
b.
Depth to bottom of well, name of project and site, well
identification number, and date of development.
c.
Method used for development, to include size, type and make of
equipment, bailer, and/or pump used during development.
d.
Time spent developing the well by each method, to include typical
pumping rate, if pump is used in development.
e.
Volume and physical character of water removed, to include changes
during development in clarity, color, particulates, and odor.
f.
Volume of water added to the well, if any.
g.
Volume and physical character of sediment removed, to include
changes during development in color, and odor.
h.
Source of any water added to the well.
i.
Clarity of water before, during, and after development.
Nephelometric turbidity unit (NTU) measurements.
j.
Total depth of well and the static water level as per ASTM D 4750
from top of the casing, immediately after pumping/development, and
24 hours after development.
k.
[Readings of pH, specific conductance, DO, ORP, and temperature
SECTION 02521
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