The source of the NPDES_AK mapping dataset is the US Environmental Protection Agency (EPA), Region 10. The NPDES_AK dataset was generated by EPA in January, 1996, and contains 116 points.
COORDINATE SYSTEM DESCRIPTION
Projection ALBERS
Units METERS
Spheroid CLARKE1866
Parameters:
1st standard parallel 55 0 0.000
2nd standard parallel 65 0 0.000
central meridian -154 0 0.00
latitude of projection's origin 50 0 0.000
false easting (meters) 0.00000
false northing (meters) 0.00000
Items Definitions for NPDES_AK:
COLUMN
ITEM NAME
WIDTH
OUTPUT
TYPE
N.DEC
1
AREA
4
12
F
3
5
PERIMETER
4
12
F
3
9
NPDES_AK#
4
5
B
-
13
NPDES_AK-ID
4
5
B
-
17
FAC-PIPE
12
12
C
-
29
FAC_NAME1
30
30
C
-
59
FAC_NAME2
30
30
C
-
89
MAJ
1
1
C
-
90
FAC_LAT
6
6
I
-
96
FAC_LONG
7
7
I
-
103
CITY
23
23
C
-
126
EXPIR
5
5
C
-
131
SIC
4
4
I
-
135
HUC
8
8
I
-
143
SYMBOL
3
3
I
-
146
FIPS:ST
2
2
I
-
148
X-COORD
4
12
F
3
152
Y-COORD
4
12
F
3
17
FAC_ID
9
9
C
-
17
STATE
2
2
C
-
Code Table for NPDES_AK as supplied by EPA Region 10:
ITEM NAME
WIDTH
TYPE
EXPLANATION
FAC-PIPE
12
C
Facility ID
FAC_NAME1
30
C
Facility name
FAC_NAME2
30
C
Alternate facility name
MAJ
1
C
M=Major; otherwise Minor
CITY
23
C
City
EXPIR
5
C
Permit expiration date
SIC
4
I
(do not know)
HUC
8
I
Hydrologic unit code
Processing History:
Date Time User Command
-------- ----- ------- ------------------------
03/30/97 16:28 sharon import cover ../import/epa/npdes_ak npdes_ak
Contact EPA:
Questions, comments, suggestions?
Feedback to Ray Peterson
rpeterso@r0serv.r10.epa.gov
(206) 553-1682
http://www.epa.gov/r10earth/datalib/
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