Chart Notes

Question 1

Warning (magenta)

Answer 1

The prudent mariner will not rely on any single aid to navigation, particularly floating aids. See US Coast Guard Light List or USCP for details.

Question 2

Tide Table

Answer 2

Port Allen 21-54/159-35
MHHW 1.8'
MHW 1.4'
MLW 0.2'
Height referred to datum of soundings MLLW
(Feb 2010)

Question 3

Note A (magenta)

Answer 3

Navigation regulations are published in chapter 2, USCP volume 7. Additions and corrections are published in the Notice to Mariners. Information regarding the regulations may be obtained at the Office of the Commander, 14th Coast Guard District in Honolulu, HI or at the Office of the District Engineer, Corps of Engineers, Honolulu, HI. Refer to charted regulation section numbers.

Question 4

Note B (magenta)

Answer 4

Submerged submarine operations are conducted at various times within the waters contained on this chart. Proceed with caution.

Question 5

NOAA Weather Radio Broadcasts

Answer 5

The National Weather Service stations listed below provide continuous marine weather broadcasts. The range of reception is variable, but for most stations is usually 20 to 40 miles from the antenna site, but can be as much as 100 miles for stations at higher elevations.

Kokee KBA-99, 162.4 Mhz

Question 6

Authorities

Answer 6

Hydrography and Topography boy the National Ocean Service, Coast Survey, with additional data from the Corps of Engineers, Geological Survey, U.S. Coast Guard, and U.S. Navy.

Question 7

Chart Title

Answer 7

Port Allen
Island of Kauai

Mercator Projection
Scale 1:5000 at 21˙54’N
North American Datum of 1983
(World Geodetic System 1984)

Soundings in Feet at Mean Lower Low Water

For symbols and abbreviations see chart No. 1

Additional information can be obtained at nauticalcharts.noaa.gov

Heights in Feet above Mean High Water.

19382
16th Ed, Mar/10

Question 8

Colregs Demarcation Line (magenta)

Answer 8

80.1440 (see note A)

Question 9

Pollution Reports

Answer 9

Report all spills of oil and hazardous substances to the National Response Center via 800-422-8802 (toll free), or to the nearest USCG facility if telephone communication is impossible (33 CFR 153)

Question 10

Caution

Answer 10

Mariners are urged to exercise extreme caution when transiting inshore waters due to changes caused by the hurricane of 1992.

Question 11

Supplemental Information

Answer 11

Consult USCP 7 for important supplemental information.

Question 12

Scale

Answer 12

0.5 Nautical mile/
37mm=0.1

Yards
18mm=100 yds
2mm=10yds

Meters
20mm=100m
2mm=10m

Question 13

Aids to Navigation

Answer 13

Consult USCG Light List 6 for supplemental information concerning aids to navigation.

Question 14

Horizontal Datum

Answer 14

The horizontal reference datum of this chart is WGS 1984, which for charting purposes is considered equivalent to NAD 1983. Geographic positions which refer to the Old Hawaiian Datum must be corrected on average 11.277” southward and 10.046” eastward to agree with this chart.

Question 15

Caution 2

Answer 15

Temporary changes or defects to aids to navigation are not indicated on this chart. See Notice to Mariners

Question 16

Local Magnetic Distrubance (magenta)

Answer 16

Differences of as much as 2.25˙ from the normal variation have been observed at Hanapepe Bay.

Question 17

COLREGS

Answer 17

International regulation for preventing collision at sea, 1972. Demarcation lines are shown thus: —- (in magenta)

Question 18

Radar Reflectors

Answer 18

Radar reflectors have been placed on many floating aids to navigation. Individual radar reflector identification on these aids has been omitted from this chart.

Question 19

Magnetic Variation (magenta)

Answer 19

9˙45’E in 2010

Annual decrease of 2’