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carefully check and verify all dimensions of related architectural elements, utilities and landscaping and furnish and install required fittings. G. Do not install the conduits and irrigation equipment as shown on the construction drawings when it is obvious that actual field conditions such as physical obstructions, grading discrepancies and field dimensions vary from those recorded on the construction drawings. Immediately bring any such discrepancies to the attention of the The City of Santa Ana authorized representative prior to proceeding with work. If immediate notification is not given and such discrepancies exist, the contractor shall assume full responsibility for necessary revisions, as determined by The City of Santa Ana. H. It is the intent of the drawings and specifications to describe the intended work. If the plans or specifications are felt in any way to be incomplete, misdirecting, conflicting or subject to misinterpretation, it is the contractor's responsibility to bring these concerns to The City of Santa Ana authorized representative's attention before bidding. If he fails to do so, the contractor must accept the Architect's interpretation and assume any possible related financial impact. I. All central control system communication cable installation and splicing or radio communication shall be tested and certified in writing by CalSense representative and shall also be tested on line with the central computer. 1.2 EXISTING FIELD CONDITIONS A. Preserve and protect all existing trees, plants, monuments, structures, hardscape and architectural elements from damage due to work in this section. In the event that damage does occur to inanimate object and structures, the contractor will repair or replace such damage to the satisfaction of The City of Santa Ana authorized representative. The contractor at the contractor's expense will replace damage or injury to living plant material. B. Trenching or other work required in this section under the limb spread of existing trees shall be done by hand or by other methods to prevent damage or harm to limbs, branches, and roots. C. Trenching in areas where root diameter exceeds 2 inches shall be done by hand. Exposed roots of this size shall be heavily wrapped with moistened burlap to avoid scarring or excessive drying. Where a trenching machine is operated in proximity to roots that are less than 2 inches, the wall of the trench shall be hand trimmed, making clean cuts through roots. D. Trenches adjacent to or under existing trees shall be closed within 24 hours, and when this is not possible, the side of trench closest to the tree or trees affected shall be covered with moistened burlap. E. Protect, maintain, and coordinate work with other contracts, specifications, trades, and utilities. Extreme care shall be exercised in excavating and working in the area due to existing utilities. Contractor shall be responsible for damages caused by their operations. In the event that damage does occur, the contractor shall pay the costs of such repairs unless other arrangements have been made with The City of Santa Ana. Use caution where trenches and piping cross existing roadways, sidewalks, hardscape, paths or curbs. In the event that damage does occur, the contractor will repair such damage at the contractor's expense. 1.3 REQUIRED DOCUMENTS A. Submittals Submit (6) six sets of all irrigation equipment to be used, manufacturer's brochures, service manuals, guarantees, and operating instructions for approval to the architect prior to beginning work. Submittals should be in a bound form complete with table of contents. The contractor shall not proceed with work in the field until the architect approves this submittal in its entirety.