The source of the CERC_AK mapping dataset is the US Environmental Protection Agency (EPA), Region 10. This data represents the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). The CERC_AK dataset was generated by EPA in January, 1996.
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 CERC_AK:
COLUMN
ITEM NAME
WIDTH
OUTPUT
TYPE
N.DEC
1
AREA
4
12
F
3
5
PERIMETER
4
12
F
3
9
CERC_AK#
4
5
B
-
13
CERC_AK-ID
4
5
B
-
17
FAC_ID
12
12
C
-
29
FAC_NAME
40
40
C
-
69
LAT
8
8
C
-
77
LONG
9
9
C
-
86
INACTIVE
1
1
C
-
87
NPL_STATUS
1
1
C
-
88
LLSRC
1
1
C
-
89
REMACT
1
1
C
-
90
SYMBOL
3
3
I
-
93
FIPS:ST
2
2
I
-
95
X-COORD
4
12
F
-
99
Y-COORD
4
12
F
3
103
HUC
8
8
I
-
17
STATE (Redefined)
2
2
C
-
Processing History:
Date Time User Command
01/24/95 09:53 rdeardor generate CERC_ALL
01/24/95 09:53 rdeardor build CERC_ALL points
01/24/95 09:53 rdeardor projectcopy file xx095044def.prj cover CERC_ALL
01/24/95 09:53 rdeardor copy CERC_ALL CERC_AK
01/24/95 09:55 rdeardor ARCEDIT /USR132/RBD3/GIS/SITES/CERC/CERC_AK
01/24/95 09:57 rdeardor project cover CERC_AK akprj /svr5/prjlib/r10alb-akalb.prj
01/24/95 09:57 rdeardor rename akprj CERC_AK
01/24/95 09:57 rdeardor build CERC_AK point
01/24/95 09:57 rdeardor addxy CERC_AK
01/24/95 10:05 rdeardor copy /usr133/rbd/gis/sites/cerc/CERC_AK CERC_AK
01/24/95 10:05 rdeardor external CERC_AK
01/24/95 10:06 rdeardor BUILD cerc_ak POINT
01/24/95 10:06 rdeardor INDEX cerc_ak POINT
03/23/95 08:30 rdeardor copy /svr5/datalib/sites/cerc_ak cerc_ak
03/23/95 08:31 rdeardor The information provided in response to your data request has been
03/23/95 08:31 rdeardor compiled for government use. EPA Region 10 makes no representations
03/23/95 08:31 rdeardor as to the accuracy of the information or its suitability for any
03/23/95 08:31 rdeardor particular purpose. EPA Region 10 disclaims any liability for errors
03/23/95 08:31 rdeardor that the data may contain.
03/22/97 16:10 sharon import cover cerc_ak /db/gpeace/covers/cerc_ak
03/23/97 16:05 sharon projectcopy cover airforce cover cerc_ak
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Additional Description for CERC_AK variables:
NAME
WIDTH
TYPE
EXPLANATION
FAC_ID
12
C
Facility ID
FAC_NAME
40
C
Facility name
LAT
8
C
Latitude
LONG
9
C
Longitude
LLSRC
1
C
Latlong Source see below
STATE
2
C
State located in (two letter code)
FIPS:ST
2
I
State FIPS code
HUC
8
I
Hyrologic Unit Code
SYMBOL
3
I
Drawsymbol for POINTMARKERS see below
NPL_STATUS
1
C
NPL Status see below
INACTIVE
1
C
Inactive Flag see below
REMACT
1
C
Remedial action taken? (Y/N)--etc.
LLSRC (Latlong Source) codes:
C=CERCLIS
P=Digitized
U=Updated by Regional staff, method unspecified
SYMBOL values:
701=NPL Final.
702=NPL Proposed.
703=Deleted from NPL Final.
704=Part of an NPL Site.
705=CERCLIS Other.
706=Archived from CERCLIS.
NPL_STATUS values (See CERCLIS for details):
Blank=?? See CERCLIS.
A=Part of an NPL Site.
D=Deleted from NPL Final.
F=NPL Final.
N=Not on NPL.
O=Not a valid site or incident..
P=NPL Proposed.
R=Removed from proposed or final prior to formal deletion.
S=Pre-proposal site.
INACTIVE
X=Inactive
Blank=Active
Others, see CERCLIS.
REMACT is not currently used.
Coordinate Method Accuracy Descriptors (MAD Codes), see madcodes.doc.
These are in table CERC.MAD, with a 1:1 relate to CERC.PAT on FAC_ID.
ITEM NAME
WIDTH
OUTPUT
TYPE
N.DEC
DESCRIPTION
ITEM VALUES
METHOD
2
2
C
-
Method of Coll.
UN=Unknown I1=MapInterp etc.
ACCURACY
4
7
F
2
Accuracy Value
Accuracy of the coordinate.
ACCUNIT
1
1
C
-
Accuracy Unit
4=Meters 5=Feet etc.
DESCCAT
2
2
C
-
Description Categ
UN=Unknown CE=Center etc.
VERT
4
7
F
2
Vertical Measure
Blank unless vert collected.
DATUM
1
1
C
-
Horizontal Datum
U=Unknown 1=NAD27 2=NAD83 etc.
MADSCALE
1
1
C
-
Source Scale
U=Unknown N=None E=1:24000 etc.
FEATCLASS
1
1
C
-
Point-Line-Area
P L or A.
MADDATE
8
8
D
-
Date of Coll.
Date of collection.
MADSOURCE
2
2
C
-
Source
R0=Reg10 HQ=HQ UN=Unknown etc.
MADCMNT
150
150
C
-
Description Cmnts
Comment.
VERTMETH
2
2
C
-
Vertical Method
Only if VERT. UN=Unknown etc.
VERTACC
5
5
C
-
Vertical Accuracy
Only if VERT. Value in meters.
VERTDATUM
1
1
C
-
Vertical Datum
Only if VERT. UN=Unknown etc.
MADVERIFY
1
1
C
-
Verification
M=No K=GroundTruthed etc.
PNTSEQ
3
3
I
-
Data-Point-Seq
Vertex-ID for line & poly only.
SUBFAC_ID
2
2
I
-
Description-Seq
Subentity-ID (pipes--stacks--etc.)
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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