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CITY OF SANTA ANA <br />SPECIFICATIONS <br />PROJECT NO.: XX-XXXX <br />PROJECT TITLE <br /> <br />118 <br />4. Provide minimum cover of eighteen (18) inches for all control wiring. <br />5. Provide minimum cover of twenty-four (24) inches for all piping under paved <br />areas. Provide two (2) inch sand bedding and four (4) inch sand backfill over pipe <br />barrel in paved areas. <br />J. BACKFILLING <br />1. Compact backfill for trenching to a dry density equal to adjacent undisturbed soil <br />in planting areas and to 90 percent in paved areas. Conform to adjacent grades <br />without dips, sunken areas, humps or other irregularities. <br />2. In existing pavement areas backfill shall be one sack sand cement slurry per yard <br />of material. <br />3. Place initial backfill on all lines of a fine granular material; no foreign matter <br />larger than one-half (1/2) inch in size will be permitted. <br />4. Flooding of trenches will be permitted only with approval of the Engineer. <br />5. If settlement occurs and adjustments in pipe, valves, sprinkler heads, lawn or <br />planting, or other construction are necessary, the Contractor shall make all <br />required adjustments without cost to the Owner. <br />K. PIPING UNDER PEDESTRIAN AND VEHICULAR PAVEMENT <br />All piping under pedestrian and vehicular pavement shall be sleeved. Sleeve shall be <br />minimum 2.5 -times the diameter of the irrigation lines. Sleeves shall be of materials <br />and installation methods approved by the local governing body but as a minimum <br />shall be Schedule 80 PVC pipe. <br />L. TESTING <br />1. Test all pressure and non-pressure lines under hydrostatic pressure of 125 pounds <br />per square inch, and prove both watertight. <br />2. Sustain pressure in lines for not less than two (2) hours. If leaks develop, replace <br />joints and repeat test until entire system is proven watertight. <br />3. Tests shall be observed and approved by Engineer prior to backfill. <br />4. Upon completion of each phase of work, entire system will be tested and adjusted <br />to meet site requirements. <br />5. Tests shall be performed with automatic valves in place. <br />M. INSPECTION OF WORK <br />Installation and operations must be approved by the Engineer. <br />505 E Central Ave <br />#B11/6/2024