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=== If the mark you found is a disk: === === If are looking for a disk and have found one: ===
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=== If the mark you found is a water tower: === === If you are looking for a water tower and have found one in the right place: ===
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 * If y ou found a water tower that looks newer than one built in 1931, then the water tower station has been replaced, and the water tower station described is destroyed.  * If you found a water tower that looks newer than one built in 1931, then the water tower station has been replaced, and the water tower station described is destroyed.
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 * If you have found a water tower that is in the wrong place, then it is not the correct water tower, even if it is what was described in the datasheet
=== If you are looking for a non-disk item such as a bolt in a drill hole: ===
Be sure to read the entire datasheet carefully. Sometimes an older type of mark will be replaced by a disk but the datasheet will still indicate the older type of mark in the Marker Type or MARKER field. If the type of mark has officially changed, the change will be noted in one of the recovery reports, and the new type described in that recovery report. If there is no change in the type of mark indicated in any of the recovery reports, you must not assume a change in the type of mark.

 * If you find a disk instead of the item described in the datasheet, you have '''not''' found the correct mark. In such a case, it is very likely that another agency who used to use the former mark has monumented a disk there. The disk is '''not''' a find.
 * If you find a metal nail, rivet, spike, and it is not exactly what is described then you have '''not''' found the correct marker.

The most important aspect of what kind of log or recovery report to make is determining whether you have found the correct mark.

If are looking for a disk and have found one:

First look at the ["datasheet"] and read the [:designation:Designation] field. For example, the designation shown on the datasheet is: CREEK.

  • If you found a disk that says: CREEK then you have found the correct disk, even if it has a date with it, like CREEK 1959.
  • If you found a disk that says: CREEK [:reset:RESET] then you have not found the correct disk.

  • If you found a disk that says: CREEK [:reference mark:RM]1 then you have not found the correct disk. Refer to [:ReferenceMain:this] section to help you find the correct disk

  • If you found a disk that says: CREEK [:azimuth mark:AZ ]then you have not found the correct disk. Refer to [:ReferenceMain:this] section to help you find the correct disk

  • If you found a disk that has some other writing but not CREEK, then you have not found the correct disk whether or not it is in exactly the right place.

If you are looking for a water tower and have found one in the right place:

Read the datasheet carefully to note the description of the water tower, and the first date the water tower was reported or established as a survey mark. For example, the datasheet says the water tower has 4 legs, has a cone shaped top, and was monumented in 1931.

  • If you found a water tower that has 6 legs or just one leg (a standpipe), then the water tower ["station"] has been replaced, and the water tower station described is destroyed.
  • If you found a water tower that looks newer than one built in 1931, then the water tower station has been replaced, and the water tower station described is destroyed.
  • If you found a water tower that has 5 legs and a round top, then the water tower station has been replaced, and the water tower station described is destroyed.
  • If you have found a water tower that is in the wrong place, then it is not the correct water tower, even if it is what was described in the datasheet

If you are looking for a non-disk item such as a bolt in a drill hole:

Be sure to read the entire datasheet carefully. Sometimes an older type of mark will be replaced by a disk but the datasheet will still indicate the older type of mark in the Marker Type or MARKER field. If the type of mark has officially changed, the change will be noted in one of the recovery reports, and the new type described in that recovery report. If there is no change in the type of mark indicated in any of the recovery reports, you must not assume a change in the type of mark.

  • If you find a disk instead of the item described in the datasheet, you have not found the correct mark. In such a case, it is very likely that another agency who used to use the former mark has monumented a disk there. The disk is not a find.

  • If you find a metal nail, rivet, spike, and it is not exactly what is described then you have not found the correct marker.

Which Report (last edited 2009-03-21 21:03:18 by localhost)