An accurate and complete survey of the land to be subdivided shall be made by a registered civil engineer or licensed land surveyor. All monuments, property lines, centerlines of streets, alleys and easements adjoining or within the subdivision shall be tied into the survey. The allowable error of closure on any portion of the final map shall not exceed 1/10,000 for field closures and 1/20,000 for calculated closures.
At the time of making the survey for the final map, the engineer or surveyor shall set sufficient durable monuments to conform with the standards described in Section 8771 of the Business and Professions Code so that another engineer or surveyor may readily retrace the survey, pursuant to Map Act Sections 66495 and 66496. At least 1 exterior boundary line shall be monumented prior to recording the final map. Other monuments shall be set as follows:
1. Lot Corners: One inch iron pipe, 30 inches long, set 12 inches below ground level. Except, corners of lots fronting on streets may be marked by an offset lead and tag set in the permanent concrete curb along the prolongation of the lot line as approved by the City Engineer. Such monument shall be noted on the subdivision map.
2. Subdivision Boundary Corners: Two inch iron pipe, 30 inches long, set 12 inches below ground level.
3. Private street intersection centerlines, angle points, and beginning and endings of curves: One inch iron pipe, 30 inches long, set flush with ground level.
4. Public street intersection centerlines, angle points, beginnings and endings of curves, subdivision boundary and section quarter corners with street intersection: One inch iron pipe, 30 inches long, set flush with ground level if pavement, set 12 inches below ground level if soil. Except, major street intersections and section corners shall be monumented with a City Standard Well Monument set flush with ground level. All street monuments shall be tied to lead and tag set in permanent concrete curbs. Notes for ties shall be provided to the City on standard survey note paper, 8 1/2 x 11 inches, depicting the tie information, stamped and signed by the surveyor or engineer.