Positions quoted in the Temporary Notice reproduced below are referred to WGS84 or a compatible datum and may be plotted directly on this ENC.
Some or all of the information contained in this Notice to Mariners may have been included in the ENCs affected.

2745(T)/19 MEXICO — Gulf of Mexico — — Obstructions. 
Source: Mexican Notice 5/99(P)/17 and UKHO

	1. Water quality sampling stations, between 5m and 20m depths, have been established in the approaches to Altamira and Tuxpan, in the following positions:

		22° 33' .18N. , 97° 51' .12W. 
 
		22° 33' .23N. , 97° 50' .90W. 
 
		22° 33' .27N. , 97° 50' .67W. 
 
		22° 33' .27N. , 97° 50' .43W. 
 
		22° 33' .62N. , 97° 50' .27W. 
 
		22° 33' .42N. , 97° 49' .87W. 
 
		22° 33' .53N. , 97° 49' .30W. 
 
		22° 33' .63N. , 97° 48' .73W. 
 
		22° 33' .85N. , 97° 47' .58W. 
 
		22° 34' .17N. , 97° 45' .87W. 
 
		and

		21° 14' .38N. , 97° 24' .68W. 
 
		21° 14' .45N. , 97° 24' .42W. 
 
		21° 14' .52N. , 97° 24' .13W. 
 
		21° 14' .57N. , 97° 23' .85W. 
 
		21° 14' .63N. , 97° 23' .57W. 
 
		21° 14' .77N. , 97° 23' .00W. 
 
		21° 14' .90N. , 97° 22' .43W. 
 
		21° 15' .15N. , 97° 21' .32W. 
 
		21° 15' .53N. , 97° 19' .63W. 
 
		21° 15' .92N. , 97° 17' .97W. 
 
	2. Mariners are advised to navigate with caution in the area.

	3. Former Notice 3056(T)/17 is cancelled.

	   (WGS84 DATUM)