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(a) The Tentative Subdivision Map is essentially a study plan which when approved will serve as a basis for the preparation of a Final Map or Parcel Map. Each Tentative Subdivision Map shall be clearly and legibly drawn and shall show the proposed design of the subdivision. It shall be at least eighteen inches by twenty-six inches (18" X 26"), and of such scale as to show clearly all details thereof.

(b) The Tentative Subdivision Map shall contain the following information:

(1) A key or location map on which shall be shown the general area including adjacent property, subdivisions and roads together with the distance to the nearest publicly maintained road.

(2) The tract name or other designation, the date, north point, scale, and sufficient description to define the location and boundaries of the proposed tract.

(3) Names and addresses of record owner(s) and subdivision name and address of the engineer, surveyor or the individual who prepared the map; and the name and Assessor’s parcel numbers of all contiguous ownerships. (Ord. 2275, § 1, 5/28/2002)

(4) The approximate dimensions and areas of all lots.

(5) Accurate location of all existing structures and the distance to all existing and proposed property lines, right of way lines, roads, creeks, streamside management and other wet areas, wells, sewage disposal fields, steep banks (over 15%), fill, etc. Distances less than fifty feet (50") must be accurate to the nearest whole foot based on field measurements. However, if the distance is questionable or cannot be determined, it shall be estimated and labeled plus or minus (±). (Ord. 2275, § 1, 5/28/2002)

(6) The location of existing and proposed sanitary sewers, sewage disposal systems, wells, storm drains, gas, water, power, and telephone lines and other public utilities and the width and location of all easements required for same. The width, locations and purposes of all other easements shall likewise be shown on the Tentative Subdivision Map.

(7) The approximate location of all areas subject to inundation or inundated, and the location, width and direction of flow of all surface water, water sources, streamside management and other wet areas, and areas subject to overflow by tidal waters. (Ord. 2275, § 1, 5/28/2002)

(8) The location, names and widths of present traveled ways and/or rights of way or adjacent roads, streets, highways, or ways.

(9) The locations, names and widths of all roads, streets, highways and way in the proposed subdivision.

(10) The location of official plan lines of projected streets or highways as shown on the General Plan and the official plan lines of the County.

(11) Contour lines having the following intervals (the method of developing the contours shall be stated):

(A) Two-foot (2') contour intervals for ground slopes between level and five percent (5%), plus spot elevations as required.

(B) Five-foot (5') contour intervals for ground slopes exceeding five percent (5%) but less than twenty-five percent (25%).

(C) Ten-foot (10') or twenty-foot (20') contour intervals for ground slopes exceeding twenty-five percent (25%).

(D) For subdivisions with no lot less than twenty (20) acres, aerial planimetric maps without contours and blow-up of USGS contours may be submitted in lieu of a more detailed contour map.

(12) The approximate radii of all curves. A Tentative Subdivision Map for a Parcel Map subdivision need not show this information.

(13) Any area for public use. A Tentative Subdivision Map for a Parcel Map subdivision need not show this information.

(14) Typical sections of all streets, highways, ways and alleys, and details of required improvements, such as curbs, gutters and sidewalks, or reference to established standards for curbs, gutters and other improvements, shall accompany the Tentative Subdivision Map and shall be of such scale as to show clearly all details thereof. A Tentative Subdivision Map for a Parcel Map subdivision need not show this information.

(15) Typical sections and all details of any grading to be performed in connection with the development of the site. A Tentative Subdivision Map for a Parcel Map subdivision need not show this information. An erosion and sediment control plan if required by the County Grading, Excavation, Erosion and Sediment Control Ordinance, Section 331-12. (Ord. 2275, § 1, 5/28/2002)

(16) Any of the foregoing requirements may be modified or waived by the Director of Public Works when they are deemed unnecessary and written findings are made. (Ord. 1146, § 34, 7/19/1977)