Document ID: EPA-HQ-OW-2004-0032-0725
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2005-08-18T04:00Z

Draft,
4/
12/
05;
subject
to
change
1­
1
Dental
Facilities
Industry
Profile
Dental
facilities
include
facilities
in
SIC
Code
8021,
Offices
and
Clinics
of
Dentists.
The
1987
SIC
Code
Manual
defines
SIC
Code
8021
as
follows:

This
industry
comprises
establishments
of
health
practitioners
having
the
degree
of
D.
M.
D.
(
Doctor
of
dental
medicine),
D.
D.
S.
(
Doctor
of
dental
surgery),
or
D.
D.
Sc.
(
Doctor
of
dental
science)
primarily
engaged
in
the
independent
practice
of
general
or
specialized
dentistry
or
dental
surgery.
These
practitioners
operate
private
or
group
practices
in
their
own
offices
(
e.
g.,
centers,
clinics)
or
in
the
facilities
of
others,
such
as
hospitals
or
HMO
medical
centers.
They
can
provide
either
comprehensive
preventive,
cosmetic,
or
emergency
care,
or
specialize
in
a
single
field
of
dentistry.

Table
1­
1.
Census
Data
SIC
Code
NAICS
Code
Number
of
Facilities
in
1997
8021
:
Offices
and
Clinics
of
Dentists
6212:
Offices
of
Dentists
114,178
Table
1­
2
shows
the
facility
counts
available
from
TRI
and
PCS.

Table
1­
2.
Facility
Counts
SIC
Code
Number
of
Facilities
Reporting
to
2000
TRI
Number
of
Facilities
Reporting
to
PCS
(
Minors)
Direct­
Only
Indirect­
Only
Both
No
Water
Discharge
Reported
8021
0
0
0
0
2
a.
Wastewater
Characteristics
.
Wastewater
Quantity
Table
1­
3
summarizes
the
wastewater
flow
data
available
in
the
2000
PCS
database.
No
facilities
reported
to
the
2000
TRI.
Draft,
4/
12/
05;
subject
to
change
1­
2
Table
1­
3.
Wastewater
Flow
Data
from
PCSLoads2000
SIC
NPDES
ID
Flow,
MGY
8021
FL0033154
0.120
8021
MD0053155
1.43
.
Raw
and
Treated
Wastewater
Quality
Almost
all
dental
facilities
discharge
to
POTWs.
Of
the
114,178
facilities
in
the
1997
Census,
only
2
appear
in
the
PCS
database,
both
of
which
are
minor
discharges.
Table
1­
4
lists
the
facilities
noted
as
SIC
Code
8021
in
the
2000
PCS
database.
By
name,
both
appear
to
be
treatment
plants,
not
dental
facilities.

Table
1­
4.
List
of
Facilities
in
PCSLoads2000
SIC
Name
City
NPID
Major/
Minor
8021
Oak
Lane
Building
Sewage
Treatment
Plant
Jacksonville
FL0033154
Minor
8021
Thunderbird
Motel
WWTP
Newburg
MD0053155
Minor
a.
On­
Site
Wastewater
Treatment/
Pretreatment
Dental
facility
pretreatment
usually
includes:

Silver
recovery
for
X­
ray
wastes
and

Simple
drain
traps
in
patient
chair­
side
sinks
to
recover
solid
particles
of
amalgam
and
other
tissue.