ARTICLE IV. STREET AND UTILITY IMPROVEMENT REQUIREMENTS

It is the purpose of this article to establish the minimum acceptable standards for improvement of public streets and utilities, to define the responsibility of the subdivider in the planning, construction, and financing of public improvements, and to establish procedures for review and approval of engineering plans.

Sec. 30-31. Engineering plans.

(a) Engineering plans shall be submitted for all improvements required in streets, alleys or easements required as a condition to plat approval and shall be the responsibility of the subdivider; provided, however, that this requirement may be met by participation in an improvement district approved by the city.

(b) It shall be the responsibility of the subdivider to have prepared by an engineer, registered in the State of Arizona, a complete set of engineering plans, satisfactory to the city engineer, for construction of required improvements. Such plans shall be based on the approved preliminary plat and be prepared in conjunction with the final plat. Engineering plans shall be approved by the city engineer prior to recordation of final plat.

Sec. 30-32. Construction and inspection.

(a) All relocation, tiling, and reconstruction of irrigation facilities shall be constructed to standards of the owning utility and the city engineer.

(b) All improvements in the public right-of-way shall be constructed under the inspection and approval of the city department having jurisdiction. Construction shall not be commenced until a permit has been issued for such construction, and if work has been discontinued for any reason, it shall not be recontinued until after notifying in advance the department having jurisdiction.

(c) All underground utilities to be installed in street shall be constructed prior to the surfacing of such street. Service stubs to platted lots within the subdivision for underground utilities shall be placed to such length as not to necessitate disturbance of street improvements when service connections are made.

Sec. 30-33. Required improvements.

(a) Streets and alleys. All streets and alleys within the subdivision shall be graded and surfaced to cross-sections, grades, and standards approved by the city engineer. Where there are existing streets adjacent to the subdivision, subdivision streets shall be improved to the intercepting paving line of such existing streets. Dead-end streets serving more than four (4) lots shall be provided a graded and surfaced temporary turning circle.

(b) Curbs. Where streets are to be paved, concrete curb, curb and gutter, or valley gutter as designated by the city engineer shall be installed in accordance with approved city standards.

(c) Sidewalks. Sidewalks shall normally be required on both sides of streets and shall be constructed with materials and a width, line, and grade approved by the city engineer in accordance with approved city standards.

(d) Streets name signs. Signs shall be placed at all street intersections and be in place by the time the street pavement is ready for use. Specifications for design, construction, location, and installation shall be in accordance with approved city standards.

(e) Storm drainage. Proper and adequate provision shall be made for disposal of storm waters; this shall apply equally to grading of private properties and to public streets. Existing major water courses shall be maintained and dedicated as drainage ways. The type, extent, location, and capacity of drainage facilities shall be determined for the individual subdivision by the city engineer and shall be constructed in accordance with approved city standards.

(f) Sanitary sewage disposal. Sewage disposal facilities shall be installed to serve each lot and be subject to the following standards and approvals:

(1) Individual systems may be constructed only in areas not reasonably accessible to a public sewer system, and then only when the following conditions are met to the satisfaction of the county health department.

a. Soil absorptivity is adequate.

b. Construction complies with approved standards.

c. Location of septic tank and seepage pits or leach lines or disposal beds in relation to property lines and buildings, and water supply wells and lines are acceptable. Location shall be such that efficient and economical connection can be made to a future public sewer.

(2) Public sanitary sewers shall be installed in areas which are reasonably accessible to an existing sewer system and shall be constructed to plans, profiles, and specifications approved by the county health department and city departments having jurisdiction.

(3) In areas where public sanitary sewers are not reasonably accessible but where the future owning agency agrees to effect temporary disposal of sewage, the subdivider shall plan and construct sewers within and for the subdivision for connection with a future public system.

(g) Water supply. Each lot shall be supplied with safe, pure, and potable water in sufficient volume and pressure for domestic use and fire protection, in accordance with city standards.

(h) Irrigation facilities. All irrigation facilities to remain within the boundaries of the tract or in an abutting one-half (1/2) street or alley right-of-way shall be tiled in accordance with standards of the owning agency and relocated or abandoned as directed by the city engineer and the owning agency. Where street improvement requires relocation of control gates or other structures, such relocation and reconstruction shall conform to city engineer and owning agency requirements.

(i) Monuments. Permanent monuments shall be installed in accordance with current city standards at all corners, angle points, and points of curve and at all street intersections. After all improvements have been installed, a registered land surveyor or engineer shall check the location of monuments and certify their accuracy.

(j) Lot corners. Iron pipe shall be set at all corners, angle points, and points of curve for each lot within the subdivision prior to the recording of the plat.

(k) Underground utility lines. All utility lines shall be placed underground. The requirement for underground electrical lines shall not apply to feeder lines from the substation to the subdivision.

Secs. 30-34—30-39. Reserved.