Example Metadata for GPS Job

Wow, there has been a lot of ink spilt on North Arrows and projection declarations for jobs based on GPS data.

Since I am not a licensed surveyor, my opinion does not count. But I get asked all the time. So here is an example of what I might do as a minimum:

I, Joe Blow, do hereby certify that I am a Professional Land Surveyor, holding 
certificate 99999 as prescribed by the State of Chaos.
I further certify that I have prepared the diagram represented herein and that
the same is an accurate representation of a survey, and was conducted under
my direct supervision.

Benchmark
  The Benchmark for this project is CP201

Coordinate System and Projection Information
  Horizontal Datum = NAD83, North American Datum 1983,
                     2011 Realization 2010.0 Epoch
  GPS Control = Maine DOT Virtual Reference System (VRS)
  Vertical Datum = NAD88, North American Vertical Datum of 1988, 
                   GPS Derived
  GEOID (used for GPS Derived Heights) = GEOID12B (NGS)
  Ellipsoid = GRS1980
  Projection = Maine West NAD83 State Plane Coordinates 
  Distance = US Survey Feet (1 Meter = 3937/1200 US Survey Feet)

Distances
  Distances are Grid distances converted to Ground using a Combined Scale Factor
  The Combined Scale Factor (0.99996067) for this project was derived at
    Control Point 201
          CP201 = 44 2 55.34000 N 69 58 23.05000 W NAD83
          Ellipsoid Height 215.562 ft
          GEOID            -57.100 ft
          Ortho Height     272.662 ft [NAVD88 (Computed using GEOID12B)]

    Example: 9,857.824 SFeet Grid = 9,858.206 SFeet Ground

Bearings
    Bearings are with respect to State Plane Grid North
    Declination at
       TN-SP  0°  8’  4.57”
       TN-MN 15° 36’ 37” (2017 Estimate)

narrow

{My Seal}
Joe Blow
Chaos PLS Number 99999

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