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3.2 Specified hardscapes shall be thoroughly cleaned between the hours of 6:00 PM and <br />7:00 AM <br />4. Operating Criteria <br />4.1 All trash, debris, tar, freestanding oil, grease, liquids, "green waste," food, <br />cigarette butts, stains, liquids, graffiti, blood, bird defecation, feces, vomit, broken <br />glass, and other materials, substances, and contaminants shall be removed from <br />hardscapes (i.e. sidewalks, walkways, patio, boardwalks, quads, esplanades) prior to <br />cleaning operations. <br />4.2 The removal of materials, substances, and contaminants prior to cleaning operations <br />may require the use of scrub brushes, sponges, mops, or other tools or utensils. All <br />cleaning agents or residuals thereof, used in this process must be completely removed <br />prior to beginning cleaning operations. <br />4.3 During regular cleaning operations, the contractor may use high pressure, low- <br />volume washers, and steam cleaners as necessary to thoroughly clean surfaces. <br />Contractor is not expected to steam clean all surfaces during regular cleaning <br />operations, but shall use a steam cleaner to clean sections of hardscapes when pressure <br />washers are not sufficient to thoroughly wash surface. <br />4.4 Hardscapes shall receive a thorough cleaning according to approved Contractor's <br />schedule. <br />4.5 At the beginning of cleaning operations, the Contractor shall strategically place <br />approved signage at appropriate locations to identify to patrons that cleaning is taking <br />place and that the walkways may be slippery. At all times Contractor shall safe guard <br />the public from conditions made unsafe by the Contractor's operations. <br />4.6 During cleaning operations should the Contractor notice a hazardous condition he <br />shall make the area safe by barricading the area and notifying the Executive Director's <br />representative immediately. It shall be the City's responsibility to remedy the unsafe <br />condition unless the Contractor created the condition. <br />4.7 In the event of hazards originating after or between cleaning frequencies, the <br />Contractor may be requested to respond to the site and remove the hazard. Such <br />requests shall be paid under Additional Work. <br />4.8 The nozzle pressure of equipment shall not be so great so as to dislodge tile/paver <br />grout or cause damage to hardscapes. <br />4.9 If the nozzle pressure of equipment used to loosen and clean hardscapes is <br />insufficient to thoroughly wash the surface, scrub brushes and cleaners may be require <br />to remove the materials and produce a thoroughly clean surface. <br />4.10 All cleaned surfaces shall be rinsed clean and no fine grit or grime shall be <br />Allowed to remain. <br />4.11 Glass surfaces, which may get wet as a result of cleaning operations, shall be hand- <br />dried immediately after the conclusion of the operation in the immediate area. <br />4.12 Immediately following the cleaning of the hardscape areas, all materials generated by <br />the operation shall be collected and placed in Contractor's trash containers or <br />otherwise removed from the si 8-V