interval table
Field
Description
Field Name
Type
[size]
Details
Foreign
Key
and 1/3
text [9]
of
Primary
Key
About
CEDS Fields
(Mandatory) The
Well record must
exist to be
available/selected
WPI_WEL_NUM
from this list to
complete and
save the Interval
record.
dHFeatureClass
Well Number
WELLNO
Boreline
Interval Type
(Mandatory)
Select H for hole,
1/3 of C for casing, G
NTERVL_TYP text [1] Primary for Grout/Gravel WPI_INTERVAL_TYP
Key
(describe in
comments) or S
for screen.
Boreline
Interval
Number
Interval numbers
are assigned
sequentially with
1 being the
interval for each
1/3 of type nearest to
NTERVL_NUM text [3] Primary the surface.
WPI_INTERVAL_NUM
Key
Interval numbers
for a well do not
repeat for an
interval type. For
example, a well
with two screen
Boreline
intervals (one at
bottom) would
have at least C1,
C2, S1 and S2
intervals.
Top Interval
Bottom
Interval
Diameter
Screen Size
Comments
number
n/a
[double]
The top of the
interval in feet
below ground
surface.
WPI_INTERVAL_TOP
Boreline
NTERVL_BOT
number
n/a
[double]
The bottom of
the interval in
feet below
ground surface.
WPI_INTERVAL_BOT
Boreline
DIAMETER
number
n/a
[double]
The diameter of
the interval in
inches.
WPI_DIAMETER
Boreline
number
n/a
[double]
For screen
intervals only –
enter 20 for
WPI_SCREEN_SIZE
0.020 slot, 30 for
0.030 slot, etc.
Boreline
memo
Enter free form
comments about
the interval
record including
your initials and
WPI_COMMENTS
the date of entry.
Screen intervals
should include
documentation of
the source for the
Boreline
NTERVL_TOP
SCREEN_SIZ
INT_COMNT
n/a
aquifer pick.
Grout/Gravel
intervals should
specify type.
Casing intervals
should state
casing material
where specified.
Columbia
Aquifer
Upper
YorktownEastover
Aquifer
aq10
aq9u
boolean n/a
Check if screen
interval intersects
the Columbia
aquifer. This
indication will
WPI_AQ10
represent OGWC
aquifer pick for
dhydro
management
system.
boolean n/a
Check if screen
interval intersects
the Upper
Yorktown
aquifer. The
separation of the
Yorktown
WPI_AQ9U
aquifer into three
units is primarily
for wells on the
Eastern Shore. If
a mainland well
screen interval
is simply
Boreline
Boreline
specified as
“YorktownEastover” then
all three
Yorktown
aquifer boxes
should be
checked. This
indication will
represent OGWC
aquifer pick for
dhydro
management
system.
Middle
YorktownEastover
Aquifer
aq9m
boolean n/a
Check if screen
interval intersects
the Middle
Yorktown
aquifer. The
separation of the
Yorktown
aquifer into three
units is primarily
for wells on the WPI_AQ9M
Eastern Shore. If
a mainland well
screen interval
is simply
specified as
“YorktownEastover” then
all three
Yorktown
Boreline
aquifer boxes
should be
checked. This
indication will
represent OGWC
aquifer pick for
dhydro
management
system.
Lower
YorktownEastover
Aquifer
aq9l
boolean n/a
Check if screen
interval intersects
the Lower
Yorktown
aquifer. The
separation of the
Yorktown
aquifer into three
units is primarily
for wells on the
Eastern Shore. If
a mainland well
WPI_AQ9L
screen interval
is simply
specified as
“YorktownEastover” then
all three
Yorktown
aquifer boxes
should be
checked. This
indication will
represent OGWC
Boreline
aquifer pick for
dhydro
management
system.
St. Mary’sChoptank
Aquifer
aq8
ChickahominyPiney Point
aq7
Aquifer
Aquia Aquifer aq6
boolean n/a
Check if screen
interval intersects
the St. Mary’sChoptank
aquifer. This
indication will
WPI_AQ8
represent OGWC
aquifer pick for
dhydro
management
system.
Boreline
boolean n/a
Check if screen
interval intersects
the
ChickahominyPiney Point
aquifer. This
WPI_AQ7
indication will
represent OGWC
aquifer pick for
dhydro
management
system.
Boreline
boolean n/a
Check if screen
interval intersects
WPI_AQ6
the Aquia
aquifer.
Boreline
Pee Dee
Aquifer
aq5
Virginia Beach
aq4
Aquifer
boolean n/a
Check if screen
interval intersects
the Pee Dee
aquifer. This
indication will
WPI_AQ5
represent OGWC
aquifer pick for
dhydro
management
system.
Boreline
boolean n/a
Check if screen
interval intersects
the Virginia
Beach aquifer.
This indication
WPI_AQ4
will represent
OGWC aquifer
pick for dhydro
management
system.
Boreline
Boreline
Boreline
BrightseatUpper
Potomac
Aquifer
aq3
boolean n/a
Check if screen
interval intersects
the Upper
Potomac aquifer.
This indication
WPI_AQ3
will represent
OGWC aquifer
pick for dhydro
management
system.
Middle
Potomac
aq2
boolean n/a
Check if screen
WPI_AQ2
interval intersects
Aquifer
Lower
Potomac
Aquifer
Last Update
Last Update
By
the Middle
Potomac aquifer.
This indication
will represent
OGWC aquifer
pick for dhydro
management
system.
aq1
iupdate
iupdateby
Check if screen
interval intersects
the Lower
Potomac aquifer.
This indication
WPI_AQ1
will represent
OGWC aquifer
pick for dhydro
management
system.
Boreline
read
only
The most recent
date changes
were saved to the
record.
Boreline
n/a
The Username of
the person who
last saved
changes to the
record.
Boreline
boolean n/a
date
text
[25]