Okaloosa County BOCC — February 18, 2014 — Underground Electric Manhole — reading text

construction that must be completed or corrected before certificate will be issued. 1. | Reinspection: Request reinspection when the Work identified in previous inspections as incomplete is completed or corrected. LIST OF INCOMPLETE ITEMS (PUNCH LIST) Preparation: Submit three copies of list. Include name and identification of each space and area affected by construction operations for incomplete items and items needing correction including, if necessary, areas disturbed by CONTRACTOR that are outside the limits of construction. CLOSEOUT PROCEDURES OKALOOSA COUNTY WATER AND SEWER DATE:8/15/2013 01770-2 SECTION 01770 CLOSEOUT PROCEDURES 1. Organize list of spaces in sequential order. 2. Organize items applying to each space by major element, including categories for individual walls, and equipment, and building systems. PART 2 - PRODUCTS 2.1 MATERIALS A. Cleaning Agents: Use cleaning materials and agents recommended by manufacturer or fabricator of the surface to be cleaned. Do not use cleaning agents that are potentially hazardous to health or property or that might damage finished surfaces. PART 3 - EXECUTION 3.1 FINAL CLEANING A. General: Provide final cleaning. Conduct cleaning and waste-removal operations to comply with local laws and ordinances and Federal and local environmental and antipollution regulations. B. Cleaning: Clean each surface or unit. Comply with manufacturer's written instructions. 1. Complete the following cleaning operations before requesting inspection for certification of Final Completion for entire Project or for a portion of Project: a. Clean Project site, yard, and grounds, in areas disturbed by construction activities, of rubbish, waste material, litter, and other foreign substances. b. | Sweep paved areas broom clean. Remove petrochemical spills, stains, and other foreign deposits. c. Remove tools, construction equipment, machinery, and surplus material from Project site. d. Clean exposed exterior and interior hard-surfaced finishes to a dirt-free condition, free of stains, films, and similar foreign substances. Avoid disturbing natural weathering of exterior surfaces. Restore reflective surfaces to their original condition. e. Remove debris and surface dust from limited access spaces, including roofs, plenums, shafts, trenches, manholes, and similar spaces. f. Sweep concrete floors broom clean in unoccupied spaces. g. Remove labels that are not permanent. h. Touch up and otherwise repair and restore marred, exposed finishes and surfaces. Replace finishes and surfaces that cannot be satisfactorily repaired or restored or that already show evidence of repair or restoration. CLOSEOUT PROCEDURES OKALOOSA COUNTY WATER AND SEWER DATE:8/15/2013 01770-3 SECTION 01770 CLOSEOUT PROCEDURES j. k. l. m. 1) Do not paint over "UL" and similar labels, including mechanical and electrical nameplates. Wipe surfaces of mechanical and electrical equipment and_ similar equipment. Remove excess lubrication, paint and mortar droppings, and other foreign substances. Replace parts subject to unusual operating conditions. Replace disposable air filters and clean permanent air filters. Clean exposed surfaces of diffusers, registers, and grills. Clean light fixtures, and reflectors to function with full efficiency. Leave Project clean. C. Comply with safety standards for cleaning. Do not burn waste materials. Do not bury debris or excess materials on OWNER's property. Do not discharge volatile, harmful, or dangerous materials into drainage systems. Remove waste materials from Project site and dispose of lawfully. END OF SECTION 01770 CLOSEOUT PROCEDURES OKALOOSA COUNTY WATER AND SEWER DATE:8/15/2013 01770-4 SECTION 02240 Russell Stephenson - Electrical Manhole Rehabilitation DEWATERING SECTION 02240 DEWATERING. PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. — Section includes construction dewatering. B. Related Sections: 1. Section 02260 "Excavation Support and Protection" for shoring, bracing, and sheet piling of excavations. 1.3 PERFORMANCE REQUIREMENTS A. Dewatering Performance: Design, furnish, install, test, operate, monitor, and maintain dewatering system of sufficient scope, size, and capacity to contro] hydrostatic pressures and to lower, control, remove, and dispose of ground water and permit excavation and construction to proceed on dry, stable foundations. 1. Delegated Design: Design dewatering system, including comprehensive engineering analysis by a qualified professional engineer, using performance requirements and design criteria indicated. 2. Continuously monitor and maintain dewatering operations to ensure erosion control, stability of excavations and constructed slopes, that excavation does not flood, and that damage to subgrades and permanent structures is prevented. 3. Prevent surface water from entering excavations by grading, dikes, or other means. 4. | Accomplish dewatering without damaging existing buildings, structures, and site improvements adjacent to excavation. 5. Remove dewatering system when no longer required for construction. DEWATERING DATE: 9/16/2013 OKALOOSA COUNTY WATER AND SEWER 02240 - 1 SECTION 02240 Russell Stephenson - Electrical Manhole Rehabilitation DEWATERING 1.4 SUBMITTALS A. Shop Drawings: For dewatering system. Show arrangement, locations, and details of wells and well points; locations of risers, headers, filters, pumps, power units, and discharge lines; and means of discharge, contro! of sediment, and disposal of water. 1. Include layouts of piezometers and flow-measuring devices for monitoring performance of dewatering system. 2. Include a written plan for dewatering operations including control procedures to be adopted if dewatering problems arise. B. Delegated-Design Submittal: For dewatering system indicated to comply with performance requirements and design criteria, including analysis data signed and sealed by the qualified professional engineer responsible for their preparation. C. Qualification Data: For qualified professional engineer licensed in the State of Florida, with experience designing dewatering system in coastal areas. D. Field quality-control reports. 1.5 QUALITY ASSURANCE A. Installer Qualifications: An experienced installer that has specialized in design of dewatering systems and dewatering work in excavations greater than twenty feet and locations of high groundwater. B. Regulatory Requirements: Comply with governing EPA notification regulations before beginning dewatering. Comply with hauling and disposal regulations of authorities having jurisdiction. C. Preinstallation Conference: Conduct conference at Project site. 1. | Review methods and procedures related to dewatering including, but not limited to, the following: a. Inspection and discussion of condition of site to be dewatered including coordination with temporary erosion control measures and temporary controls and protections. b. Geotechnical report. c. Proposed site clearing and excavations. d. _—_— Existing utilities and subsurface conditions. e. Coordination for interruption, shutoff, capping, and continuation of utility services. f. Construction schedule. Verify availability of Installer's personnel, equipment, and facilities needed to make progress and avoid delays. g. Testing and monitoring of dewatering system. DEWATERING DATE: 9/16/2013 OKALOOSA COUNTY WATER AND SEWER 02240 - 2 SECTION 02240 Russell Stephenson - Electrical Manhole Rehabilitation DEWATERING 1.6 PROJECT CONDITIONS A. _ Interruption of Existing Utilities: Do not interrupt any utility serving facilities occupied by Owner or others unless permitted under the following conditions and then only after arranging to provide temporary utility according to requirements indicated: 1. Notify Construction Manager and Owner no fewer than two working days in advance of proposed interruption of utility. 2. Do not proceed with interruption of utility without Construction Manager's written permission. Project-Site Information: A geotechnical report has been prepared for this Project and is available for information only. The opinions expressed in this report are those of geotechnical engineer and represent interpretations of subsoil conditions, tests, and results of analyses conducted by geotechnical engineer. Owner will not be responsible for interpretations or conclusions drawn from this data. 1. | Make additional test borings and conduct other exploratory operations necessary for dewatering. 2. The geotechnical report is included elsewhere in the Project Manual. Survey Work: Engage a qualified land surveyor or professional engineer to survey adjacent existing buildings, structures, and site improvements, establishing exact elevations at fixed points to act as benchmarks. Clearly identify benchmarks and record existing elevations. 1. During dewatering, regularly resurvey benchmarks, maintaining an accurate log of surveyed elevations for comparison with original elevations. Promptly notify Architect if changes in elevations occur or if cracks, sags, or other damage is evident in adjacent construction. PART 2 - PRODUCTS (Not Used) PART 3 - EXECUTION 3.1 PREPARATION A. Protect structures, utilities, sidewalks, pavements, and other facilities from damage caused by settlement, lateral movement, undermining, washout, and other hazards created by dewatering operations. 1. Prevent surface water and subsurface or ground water from entering excavations, from ponding on prepared subgrades, and from flooding site and surrounding area. DEWATERING DATE: 9/16/2013 OKALOOSA COUNTY WATER AND SEWER 02240 - 3 SECTION 02240 Russell Stephenson - Electrical Manhole Rehabilitation DEWATERING moo A ™ 2. Protect subgrades and foundation soils from softening and damage by rain or water accumulation. Install dewatering system to ensure minimum interference with roads, streets, walks, and other adjacent occupied and used facilities. 1. Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from Owner and authorities having jurisdiction. Provide alternate routes around closed or obstructed traffic ways if required by authorities having jurisdiction. Provide temporary grading to facilitate dewatering and control of surface water. Monitor dewatering systems continuously. Promptly repair damages to adjacent facilities caused by dewatering. Protect and maintain temporary erosion and sedimentation controls, which are specified or as noted on Drawings during dewatering operations. INSTALLATION Install dewatering system utilizing wells, well points, or similar methods complete with pump equipment, standby power and pumps, filter material gradation, valves, appurtenances, water disposal, and surface-water controls. 1. | Space well points or wells at intervals required to provide sufficient dewatering. 2. Use filters or other means to prevent pumping of fine sands or silts from the subsurface. Before excavating below ground-water level, place system into operation to lower water to specified levels. Operate system continuously until drains, sewers, and structures have been constructed and fill materials have been placed or until dewatering is no longer required. Provide an adequate system to lower and control ground water to permit excavation, construction of structures, and placement of fill materials on dry subgrades. Install sufficient dewatering equipment to drain water-bearing strata above and below bottom of foundations, drains, sewers, and other excavations. 1. Do not permit open-sump pumping that leads to loss of fines, soil piping, subgrade softening, and slope instability. Reduce hydrostatic head in water-bearing strata below subgrade elevations of foundations, drains, sewers,