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propriate sensitive marine organisms in the 96-hour test period, or that produces another identifiable reliable physiological indicator of toxicity in such animals within the same time period. The 0.01 factor is based on the best available current experience and is subject to revision or modification based on the general increase in knowledge or specific information on the effects of a specific waste.

227.72 Mixing zone.

A mixing zone is the column of water immediately contiguous to the release zone, beginning at the surface of the water and ending at the ocean floor, the thermocline or halocline, if one exists, or 20 meters, whichever is the shortest distance. $ 227.73 Release zone.

A release zone is the area swept out by the locus of points constantly 100 meters from the perimeter of the conveyance engaged in dumping activities, beginning at the first moment in which dumping is scheduled to occur and ending at the last moment in which dumping is scheduled to occur. § 227.74 Trace concentrations.

Trace concentrations, for the purposes of these regulations, are those concentrations in a waste of materials identified in § 227.22 which do not exceed by one order of magnitude the concentra

tion of the same constituent in a sample of natural seawater at the dumping site or in an adjacent area not subject to dumping. 8 227.75 High-level radioactive wastes.

High-level radioactive waste means the aqueous waste resulting from the operation of the first cycle solvent extraction system, or equivalent, and the concentrated waste from subsequent extraction cycles, or equivalent, in a facility for reprocessing irradiated reactor fuels or irradiated fuel from nuclear power reactors. $ 227.80 Amendment of criteria.

In the event that the Administrator or his delegate concludes that it is desirable to amend this part, he shall announce his intention of doing so by publishing notice thereof in the FEDERAL REGISTER, and shall thereafter follow the procedures prescribed in section 4 of the Administrative Procedures Act (5 U.S.C. 553). Any person proposing amendments to this part shall notify the Administrator of the amendments so proposed, and the justifications supporting the amendments so proposed. Should the Administrator reject the amendments so proposed, he shall notify the proponent of such action within 30 days of the date upon which such amendments were given to him.

APPROVED INTERIM DUMPING SITES

EPA REGION I

Location

Size
(square
miles)

Depth
(feet)

Primary use

Latitude and longitude

44°14', 68°53'
43°38', 70°10'
42°32', 70°40
42°22' 70°40'
41°24', 71°18'
41°11', 71°32'
41°09', 72°53'.
42°35', 70°26'.

2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0

120 Dredged materials.
100
180
174
108
126 Do.
60

Do.
312 Toxic waste.

Do.
Do.
Do.
Do,

EPA REGION II

40° 24', 73°51', 40°23', 73°49' 40°25', 73°45' 40°20' 73°40' 40°13', 73°46'

2.0
2.0
2.0
2.0
2.0

88 Mud.
103 Cellar dirt.
90 Sludge.
80 Waste acid.
200 Wreck dumping.

[blocks in formation]
[blocks in formation]

Manasquan River, 20° true, 600 yd from north jetty,

light near 40°6', 74°2'. Absecon Inlet, 140° true, 0.8 to 1.1 miles from south

jetty light near 30°21', 74°23'. Cold Spring Inlet, 240° true, 1.2 to 1.5 miles froin

west jetty light, 38°56', 74°54'. 106 nmi, 145o true, from Ambrose Light, 38°45',

73°15'. 19°10 to 19°20' 66°35' to 66°50'. Approximately 123 nmi southeast of Ambrose

Light, south of 39°0ʻ, north of 38°30', west of

72°0', east of 72°30'. 18°11', 67°12' 18°30, 66°30'. 17050, 65032

[blocks in formation]

EPA REGION III

2.0 2.0

2.0

38°45', 74°47' 38°30'to 38°35' 74°16' to 74°25' 38°20' to 38°25' 74°10' to 74°20' 38°0 to 38°20'. 7300% to 74°20'. 244 miles east of Dam Neck, Va., near 36°46', 75°55'. 16 miles northeast of Cape Henry, Va. near 37°05',

75°42'. 37°50', 74°15'. 33°16' to 33°30

2.0 3.0 4.0

(1)

2.0

EPA REGION IV

Wilmington Harbor, 33°48', 78°02.
Morehead City, 34°39', 76°42'.
Georgetown Hárbor, 33°11', 79°08'
Port Royal Harbor, 32009', '80°36':.
Port Royal Harbor, 32°05', 80°36'
Brunswick Bay, 31°02', 81°17'.
Savannah Bar, 31°57', 80°46'.
Canaveral Harbor, 28°23', 80°34'
Fernandina Harbor, 30042, 81°22'
Fernandina Harbor, 30°42', 81°24'.
Fort Pierce Harbor, 27°27', 80°15'.
Jacksonville Harbor, 30°21', 81°18'.
Mlami Harbor, 26°46', 80°05'.
Palm Beach Harbor, 26°46', 80°01'.
Port Everglades Harbor, 26°06', 80°06'
St. Augustine Harbor, 29°54', 81°15'.
St. Lucie Inlet, 27°10', 80°09.
Charlotte Harbor, 26°39', 82°19'.
Tampa Harbor, 27036', 82°46'
Tampa Harbor, 27°33', 82°51'.
Tampa Harbor, 27°38', 82051'.
South of Mobile, Ala., 30° 10', 88° 08'.
Southeast of Gulfport, Miss., 30° 10', 88° 57'.
Southeast of Gulfport, Miss., 30° 10', 89° 00'.
South of Pensacola, Fla., 30° 17', 870' 19'.
South of Pascagoula, Miss., 30° 12', 88° 33'
South of Panama City, Fla., 30° 07', 85° 46'
Port St. Joe, Fla., 29° 50', 856 29'.
Port St. Joe, Fla., 29° 53', 85° 31'.
South of Carrabelle, Fla., 29° 41', 84° 37'.
South of Carrabelle, Fla., 29° 40', 84° 39'
31° 40', 76° 56'..

40 Sewage sludge.
120 Neutralized acid wastes.

150 Industrial salt waste.

6,000 Arsenic solutions.

38 Sand.
63 Silt and sand.

6, 600 Conventional munitions.
Unknown Dredged material.

3.5
11.6

1.0
1.4
1.0
2.0
2.0
1.6
0.1
0.1
0.3
0.3
0.13
5.2
0.1
0.31
0.1
0.7
0.8
0.9
0.9
0.8
0.5
0.4
0.1
0.2
0.5
0.1
0.15
1.0
1.0
(1)

45 Sand and silt (hopper dredge).
50 Do.
28 Mostly sand and shell.
20

Do.
21

Do.
29-36 Sand with some shell and silt.
20-36

Do.
31 Sand and silt.
37 Sand, shell, and mud.
33 Do.
39 Do.

31 Sand and shell.
41-68 Do.
26-57 Do.
24

Do.
36 Fine sand.
11 Sand and shell.
29 Silty sand and shell.
28 Poorly graded sand and shell.
32 Do.

24 Do. 44-48 Dredged materials (hopper dredge). 23-32 Do, 23-32 Do. 36-42 Do. 30-40

40
Unknown
Unknown Do.

36-42 Do.
36-42 Do.
7,600 Conventional munitions.

Do.
Do.
Do.

1 3-mile radius.

[blocks in formation]

Latitude and Longitude Calcasieu Pass, Area A, 29°45', 93°21'.

1.0.. Calcasiou Pass, Area B, 29° 45', 93°20'.

1.0.. Calcasiou Pass, Area C, 29°42', 93°21'.

5.0.. Calcasiou Pass, Area D, 29°35', 93°17'.

5.0... Southwest Pass, 28°52', 89°31'.

2.0.. Waste disposal área, 2744', 94°44', 27028°, 94°28'..... 16 miles by 16

miles.
Waste disposal area, 28°Oʻ, 28°20', 89°15', 89°35'.. 20 miles by 20

miles.
Off Sabine Pass, Tex., Area A, 29°37', 93°50'. Approximately 5..
Off Sabine Pass, Tex., Area B, 29°37', 93°48'. Approximately 3..
Off Sabine Pass, Tex., Area C, 29°40', 93061'. Approximately 4..
Off Galveston, Tex., Area A, 29°19', 94°40'. Approximately

2.5.
Off Galveston, Tex., Area B, 29°20', 94°39'. Approximately

2.5. Off Galveston, Tex., Area C, 29°17', 94040

Approximately 7.. Off Galveston, Tex., Area D, 29°22', 94°43'. Approximately 8..

[blocks in formation]

EPA REGION IX

1,620 Dredged materials.
2,760

Do.
5, 100

Do. 90

Do. 60

Do. 254 Cannery wastos. 60 Dredged materials. 36 Do. 70 Do. 65 Construction material.

21°14', 157°54'

1.0.. 21°55', 159°17'.

1.0. 21°50, 159°35'

1.0.. 33°41', 118°10'

4... 34°07', 119°10

2.0. 37°35', 122°50'

2.0. 36° 49', 121°50'

2.0.. 37°46', 122°38'

1.0. 30°36', 124°16'.

1,500 ft diameter... 37°46', 122°33' (Seal Rock)...

1,950 yd long bearing 45°

true, 1,300 yd wide bear

ing 1350 true. 83°17', 118°10'.

2.0.... 32°33' 119°06'

2.0. 32°35', 117°17'.

1,000-yd radius.. 83°37', 118°40'.

3-mile radius. 40°46, 124°16'

500 yd. Crescent City, 210° true from Round 1,000 ft diameter..

Rock, (41°43', 124°12'). Noyo Harbor, 39°25', 123°50%

500 ft diameter. San Francisco Bar, western end of ship. 5,000 yds long....

ping channel 2,500 ft south of channel 1,000 yds wide..

(37° 45', 122°36'), Moss landing west of ocean pier (36°49', 2.0......

Dry garbage and trash.

Do.
Dredged spoll.

Toxics and chemicals.
70 Dredged materials.
90 Rocks.
100 Sediment erosion material.

Dredged material. 360 Do. 3,000 Conventional munitions. 12, 000 Do. 6,600 Do. 7, 200

121°50'). 33°00', 118°55'.

3-mile radius. 34° 40', 122°00'

do.... 37°40', 123°25'.

do.. 21°26' 159°38'

.do..... 30°20', 131°25'

do. 14°32', 120°10'

2-mile radius 13°15', 144°15'

3-mile radius..

Do. 5,000 Do. 3,000 Do. 6,000 Do.

[blocks in formation]
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46° 14', 124° 10
12', 124° 09'.

124° 16'
124° 27'.
124° 26'
124° 22'

124° 14 44° 01', 124° 09' 46° 42', 124° 10 46° 56', 124° 07'. 61° 15', 149° 54'. 64° 30', 165° 27'. 48° 16', 126° 58'. 45° 34' 123° 59' 4° 48', 124° 04' 44° 36', 124° 06'.

0.3....
0.1...
5 acres.

0.2..
0.2
0.2.
2.0.
0.2.
2.0..
2.0.
2.0.
2.0.
3-mile radius.
2.0.
2.0.
2.0.

130 Sand.
125

Do.
65 Gravel and sand.
25

Do.
50 Sand.
60 Do.
60

Do.
70 Do.

90 Dredged materials, 30-35

Do. (1)

Do. (1)

Do. 8, 300 Conventional munitions.

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Dredged materials.

Do.
Do.

EPA HEADQUARTERS

33° 55', 08° 16'....

3-mile radius.......

6,600 Conventional munitions and

dredged spoil.

1 Not specificed.

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