Surveys in connection with maps prepared pursuant to this chapter shall be made in accordance with standard practices and principles for land surveying. A traverse of the boundaries of the subdivisions and all lots and blocks shall close. Sufficient data shall be shown to determine readily the bearing and length of each line. Dimensions of lots shall be net dimensions, and no ditto marks shall be used.
Show two measured ties from the boundary of the subject property to existing Horizontal Control stations having California Coordinate values of third order accuracy or better, as published in the County of San Diego's Horizontal Control Book. These tie lines to the existing control shall be shown in relation to the California Coordinate System (i.e., grid bearings and grid distances). All other distances shown on the map are to be shown as ground distances. A combined factor for conversion of grid-to-ground distances shall be shown on the map.
If there are no acceptable horizontal control stations within one-half mile of the subject property, then the engineer or land surveyor may make a written request to the City Engineer for additional control stations within the subject area.
The City may provide a coordinated monument (using the North American datum of 1983) by tying either a section, quarter-section, rancho or other appropriate land net corner or road centerline which is intervisible with an existing monument in the local control network.
In the event the City is unable to provide an acceptable horizontal control station within one-half mile of the subject property within 30 days of written request, this requirement may be waived.
None of the above will preclude a person, authorized to practice land surveying, from performing the necessary work to meet the requirements of this section.