SECTION FINISH GRADING

Transcription

1 SECTION FINISH GRADING PART 1 - GENERAL 1.01 Related Documents A. Drawings and general provisions of the Contract, including General Conditions and Division 1 Specification Sections, apply to work of this Section Section Includes A. This Section includes furnishing labor, materials, equipment and related items required to complete finish grading including maintaining erosion control devices and spreading topsoil stockpiled under Section Mass Earthwork or as furnished by this subcontractor and as shown on the Drawings and specified herein. B. Refer to Section 02210, stripping of topsoil and erosion control required. C. Refer to Section Erosion Control for special requirements relative to Earthwork. D. Refer to Divisions 15 & 16 sections for excavation and backfill required in conjunction with underground mechanical and electrical utilities; not work of this section Quality Assurance A. Codes and Standards: Perform excavation work in compliance with applicable requirements of governing authorities having jurisdiction. B. Hazardous Materials. In the event the contractor encounters material reasonably believed to be asbestos, polychlorinated biphenyl (PCB) or other hazardous materials or pollutants on the site, which have not been rendered harmless, the Contractor shall immediately stop work in the area affected and report the condition to the Owner and Architect. The work in the affected area shall not thereafter be resumed, if in fact, the material is asbestos, polychlorinated biphenyl (PCB) or other hazardous material or pollutant and has not been rendered harmless. The work in the affected area shall be resumed in the absence of a hazardous material or pollutant, or when it has been rendered harmless. The Contractor shall not be required to perform any work relating to asbestos, polychlorinated biphenyl (PCB) or other hazardous material or pollutant, rd C. Testing and Inspection Service: A designated 3 party, Special Inspector is to provide soil testing and inspection services for quality control testing during the earthwork operations as defined herein. Payment for testing shall be made by the Contractor using the testing allowances. Test reports shall be ed to Architect and owner as they are transmitted to the Contractor. The Owner reserves the right to back charge the contractor for retesting of area or units that fail the initial test. 1. The Contractor shall work closely with the Special Inspector to coordinate services in accord with his work schedule. The Contractor shall be responsible for notifying the Special Inspector when he is ready for testing. 2. Quality Control Testing During Construction: Allow testing service to inspect and approve subgrades of all foundations for building, retaining walls, free standing masonry wall, including floor slab, pavements, walks, steps, and fill layers before further construction work is performed. 3. The exposed soil subgrade, from the Mass Earthwork effort, after removal of topsoil and construction debris, etc., in areas which will support footings, floor slabs or pavement should be inspected by the Special Inspector for pockets of loose material by probing and/or proof rolling. Subgrade should either be compacted to 100% of Standard Proctor maximum dry density or removed and replaced with well-compacted, suitable fill material

2 4. In place field density checks of each layer of fill under footers, floor slabs, parking lots and road areas for the pavement shall be made by the Special Inspector. Compaction should be sufficient to indicate density as noted under paragraph 3.03 B of the maximum density value as determined by the Standard Proctor test as determined by ASTM D-698. a) A minimum of 1 test per 3,000 sq.ft. in building pad areas. b) A minimum of 1 test per 5,000 sq.ft. in paved or lawn areas. c) Some adjustments in the test frequencies may be required based upon the general fill types, changes in the fill material, and soil conditions at the time fo placement as recommended by Special Inspector. 5. Footing Subgrade: For each strata of soil on which wall footings will be placed, conduct at least one test per 100 LF to verify required design bearing capacities. Subsequent verification and approval of each footing subgrade may be based on a visual comparison of each subgrade with related tested strata, when acceptable to the Architect and Special Inspector. 6. Subgrade or fills which are below specified density based on testing service reports and inspection, shall be compacted to specified density and re-tested. 7. Fills constructed of dense grade aggregate shall be compacted for test to provide a density equal to or greater than 84% of solid volume (based on oven dry, bulk specific gravity). 8. Site grading should take place between about late April to early November. Earthwork taking place outside this time period will likely encounter wet conditions and weather conditions that will provide little to no assistance with drying the soils. NOTE THAT IF LIME STABILIZATION/TREATMENT IS USED, THE EARTHWORK MUST TAKE PLACE DURING WARMER MONTHS AND THE FINAL SUBGRADE SHOULD NOT BE ALLOWED TO BE EXPOSED DURING COOLER OR WETTER MONTHS. If this is not followed, the areas previously lime stabilized may require re-stabilization. D. Proof rolling when approved or recommended by the Special Inspector for subgrade or a fill layer shall in accord with paragraph 3.02 G 1. E. Maintain erosion control systems as installed under Section as necessary during construction period. F. Remove erosion control systems when no longer required Submittals A. Test Reports: The testing service shall submit the following reports directly to the Architect, Owner and Contractor. 1. Standard Proctor test on borrow material to be used in fills below building or pavement. 2. W ritten verification of each footing, floor slab, parking lot and drive subgrade bearing capacity and structural conditions. 3. Field density test on each layer of fill. B. The Contractor shall work closely with the Special Inspector to coordinate services in accord with his work schedule. The Contractor shall be responsible for notifying the Special Inspector when he is ready for testing Job Conditions A. Refer to Section 01500, for items related to special requirements relative to maintenance of vehicular and pedestrian traffic and related information

3 B. Geotechnical Investigations: Copies of the Geotechnical Reports prepared by AEI and CSI for this project are inserted into the specifications at the end of this section. These reports are a part of the contract documents. 1. It is expressly understood that the Owner will not be responsible for interpretations or conclusions drawn therefrom by Contractor. 2. Additional test borings and other exploratory operations may be made by Contractor at no cost to Owner. Submit written request for permission to Owner. 3. Should the Contractor encounter any latent soil, bedrock or water conditions that were not observed in the Geotechnical Borings or otherwise discussed in the Report, advise the Architect in writing immediately. The Contractor assumes responsibility for site problems if the Architect is not notified immediately in writing of conditions encountered other than those described in the referenced report. PART 2 - PRODUCTS A. Subbase Material: Dense grade aggregate shall be used within the building footprint, over compacted or stabilized base. B. Drainage Fill: W ashed, evenly graded mixture of crushed stone, or crushed or uncrushed gravel, with 100% passing a 1½ sieve and not more than 5% passing a No. 4 sieve. C. Backfill and Fill Materials: All materials used for fills shall be approved by the Special Inspector. 1. Excavated earth materials free of topsoil and organic material from the site may be used, if approved. Excavated earth materials from the site shall be processed to obtain optimum moisture content as recommended by the Geotechnical Report. 2. Imported earth fill, if required, shall be materials having a plastic index of less than 35 and a Standard Proctor maximum dry density over 100 lbs per cubic feet. Sandy and gravelly clays are best suited for structural fill. Imported borrow for fill or backfill should consist of lowplasticity clayey sand (SC), sandy clay (CL), or clayey gravel (GC), having a plasticity index of less than 30 or an approved alternate. 3. If natural moisture contents of soils encountered is excessive, some spreading and drying of the soils may be necessary prior to placement and compaction of the fill at the site. Close field supervision should be exercised when issuing these soils as backfill. If excessively wet, these soils are difficult to work and offer low strength. If they have moisture contents at, or close to, optimum they are readily compacted. (Refer to Geotechnical Report) 4. Four Atterberg limits tests were performed on representative soil samples from the site. Two of the samples classified as lean clay (CL). Two of the samples classified as fat clay (CH) with a maximum Plasticity Index (PI) of 47 percent. Soils with a PI of less than 30 percent are to be used as structural fill material. The on-site fat clay (CH) can be used as structural fill material; however, stringent placement and moisture control measures must be implemented. Fat clay (CH) with a PI of more than 30 can be used in the building addition undercut area to a maximum elevation 2 feet below the design bottom of foundation elevation. Fat clays with a PI of more than 30 should not be used above this elevation. Additionally, fat clays shall not be placed within 2 feet (vertically) beneath pavement or sidewalk areas. D. Stone and dense graded aggregate shall meet requirements of Section 805 of the Kentucky Department of Highway Specification, latest edition. E. Filter fabric shall be MIRAFI 140 N meeting requirements of ASTM D6241 as manufactured by Tengate or approved equal. F. Footer drains shall be 4" corrugated PVC perforated pipe wrapped in a sock

4 G. Flowable fill: See cast in place concrete specification for mix requirements. H. Prohibited material: Free draining crushed stone shall not be used for fill within the building footprint except where used with footer drain around foundation retaining walls. I. Topsoil: If adequate topsoil has not been stockpile under Section Mass Earth Grading, the Contractor shall furnish at his own expense sufficient topsoil to properly install all work specified herein and shown on the Drawings. 1. Topsoil shall be original surface loam obtained from well-drained areas from which topsoil has not been removed previously, either by erosion, clearing and removal of trees or mechanical means. It shall not contain subsoil material and shall be clean and free of clay lumps, roots, stones or similar substances more than 1" in diameter, debris, discarded fragments of building materials or weeks and weed seeds. Topsoil shall be classified as a loam, sandy loam, sandy clay loam, silt loam, clay loam (absolute maximum clay content 40%) or a combination thereof, as determined from the Bureau of Plant Industry, Soils and Agricultural Engineering, U.S.D.A. Triangular soil texture chart. PART 3 - EXECUTION 3.01 General A. Excavations are unclassified. B. Stripping and stockpiling of topsoil is covered under Section C. Should wet soils be encountered, undercut and replaced if directed by Special Inspector in accord with paragraph 3.02 G. D. Site drainage shall be maintained during construction so that positive drainage is promoted away from buildings, roads and parking areas. E. The words finished grades, as used herein, mean the required grade elevations indicated on the Drawings. Any conflict in finished grades between spot elevations and contours shall be brought to the attention of the Architect who will determine which elevations shall govern. Unless otherwise indicated, graded areas shall have a uniform slope between finished grade points shown. Abrupt changes in slope shall be slightly rounded. F. The word subgrade as used herein, means the subgrade elevations required by the construction of improvements to be placed thereon. Required subgrades shall be true planes parallel to finished grades with the following depths: 3.02 Excavation 1. Below areas to be seeded -6" 2. Within planting areas as defined on the grading plan by note, subgrade shall be 24" below finish grade. 3. Below other surfacing - as fixed by the depth of the surfacing indicated on the Drawings. A. Excavation is unclassified and includes excavation (removal of material encountered) to subgrade elevations indicated, regardless of character of materials and obstructions encountered. B. Where existing soils are expansive in nature and have not been lime treated, they shall be maintained in a moist condition and not allowed to dry out and crack prior to covering with subsequent construction. Where necessary, such soils shall be slowly and uniformly moistened as required to close any shrinkage cracks and to minimize expansion of soil subsequent to construction. C. Unauthorized excavation consists of removal of materials beyond indicated pay line, subgrade elevations or dimensions without specific direction. Unauthorized excavation, as well as remedial work directed by the Special Inspector, shall be at Contractor s expense

5 D. W hen excavation has reached required subgrade elevations, notify the Special Inspector who will make an inspection of conditions. The Contractor shall be responsible for additional recompaction of subgrade materials as recommended by the Special Inspector if the work does not pass the initial inspection. 1. If, in the opinion of the Special Inspector, unsuitable bearing materials are encountered at required subgrade elevations, carry excavations deeper and replace excavated material as directed by the Special Inspector. Payment for such work shall be in accord with accepted unit prices. 2. Soils exposed in the bottom of all foundation excavations should be protected against any detrimental change in conditions such as disturbance, rain, or freezing due to the soils capability to absorb water, and as a result, lose a substantial percentage of their strength. 3. Surface runoff should be directed away from such excavations and not be permitted to pond. Optimum protection can best be achieved if all footing concrete is poured the same day the excavation is made. If this is not practical, the footing excavations should be adequately protected. E. Should the Contractor encounter unsuitable soils, subsurface dropouts, or other areas below the limits of excavation which will result in inadequate support of the project facilities as determined by the Special Inspector, the Architect should be notified in writing so that remedial corrections can be undertaken as required by the Special Inspector on a unit price basis. F. Stability of Excavations: Shore and brace side of excavation to comply with local, state, and federal codes, ordinances, and regulations having jurisdiction. 1. Maintain sides and slopes of excavations in safe condition until completion of backfilling. G. Shoring and Bracing: Provide materials for shoring and bracing, such as sheet piling, uprights, stringers and cross-braces, in good serviceable condition. 1. Establish requirements for tench shoring and bracing to comply with local codes and authorities having jurisdiction. 2. Maintain shoring and bracing in excavations regardless of time period excavations will be open. Carry down shoring and bracing as excavation progresses. H. De-watering: Prevent surface water and subsurface or groundwater from flowing into excavations and from flooding project site and surrounding area. Under no circumstances allow water to pond during or after construction due to nature of soils at this site. 1. Do not allow water to accumulate in excavations. Remove water to prevent softening of foundation bottoms, undercutting footings and soil changes detrimental to stability of subgrades and foundations. Provide and maintain pumps, well points, sumps, suction and discharge lines and other de-watering system components necessary to convey water away from excavations. 2. Establish and maintain temporary drainage ditches and other diversions outside excavation limits to convey rain water and water removed from excavation to collecting or run-off areas. Do not use trench excavations as temporary drainage ditches. 3. The surface should be sealed prior to expected wet weather. This can usually be accomplished with rubber-tired construction equipment or a steel-drum roller. I. Material Storage: Stockpile satisfactory excavated materials until required for backfill or fill. Place grade and shape stockpiles for proper drainage. 1. Locate and retain soil materials away from edge of excavations. Do not store within drip line of trees indicated to remain. 2. Dispose of excess soil material and waste materials as herein specified

6 J. Excavation for Structures: Conform to elevations and dimensions shown within a tolerance of plus or minus 0.10' and extend a sufficient distance from footings and foundations to permit placing and removal of concrete formwork, installation of services, other construction and for inspection. 1. In excavating for footing and foundations, take care not to disturb bottom of excavation. Excavate by hand to final grade just before concrete reinforcement is placed. Trim bottoms to required lines and grades to leave solid base to receive other work. 2. Excavated footing trenches shall not be left open to accumulate water. Footing excavations shall be concreted and backfilled immediately after excavation is complete. K. Foundation Excavations. Soils exposed in the bottom of all foundation excavations should be protected against any detrimental change in conditions such as disturbance, rain, or freezing. This is especially important given the capability of the residual soils to absorb water, and as a result, lose a substantial percentage of their strength. Surface runoff should be directed away from such excavations and not be permitted to pond. Optimum protection can best be achieved if all footing concrete is poured the same day the excavation is made. If this is not practical, the footing excavations should be adequately protected. Additionally, areas adjacent to the proposed structure should be sloped in a manner that will provide positive drainage away from the structure. L. Excavation for Pavements: Cut surface under pavements to comply with cross sections, elevatons and grades as shown. M. Cold W eather Protection: Protect excavation bottoms against freezing when atmospheric temperature is less than 35 F (1 C) Compaction 1. If any fill is placed during freezing or wet weather, frozen or saturated material should not be used. Remove any material from the exposed surface in fill areas that have become frozen overnight or exceed the optimum moisture content by more than three percent. A. General: Subgrades shall be proof-rolled in presence of Special Inspector before adding fill or aggregate base. The proof-rolling should be performed using heavy construction equipment such as a fully loaded single or tandem axle dump truck (approximately tons), passing repeatedly over the subgrade at a slow rate of speed. 1. Subgrade soils that are considered unstable after proof-rolling should be stabilized by additional compaction or as recommended by the Special Inspector. 2. Refer to paragraph 3.02 D1 and E for information on soils that can not be compacted and must be replaced. B. Percentage of Maximum Density Requirements: Compact soil after removal of topsoil, fill material, and debris to not less than the following percentages of maximum density for soils which exhibit a well-defined moisture density relationship (cohesive soils) determined in accordance with ASTM D698 and not less than the following percentages of relative density, determined in accordance with ASTM D 2049 for soils which will not exhibit a well-defined moisture-density relationship (cohesionless soils). 1. Footings and Floor Slabs. Compact top 6" of subgrade to100% and each 6" layer of backfill or fill material at 100% of maximum density. 2. Pavement, Walkways. Compact top 6" of subgrade and each 6" layer of backfill or fill material at 98% maximum density. 3. Lawn or Unpaved Areas. No compaction of subgrade below lawns or planted areas is required. Compact each 6"layer of backfill or fill material at 85% maximum density. Subgrade in lawn areas shall be 6" below finish grade

7 C. Moisture Control: Where subgrade or layer of soil material must be moisture conditioned before compaction, uniformly apply water to surface or subgrade or layer of soil material to prevent free water appearing on surface during or subsequent to compaction operations. 1. Remove and replace or scarify and air dry soil material that is too wet to permit compaction to specified density. 2. Soil material that has been removed because it is too wet to permit compaction may be stockpiled or spread and allowed to dry. Assist drying by disking, harrowing or pulverizing until moisture content is reduced to a satisfactory value. 3. Fill material placed below buildings or pavements shall be processed to obtain a moisture content between optimum and plus 2 percent of its optimum moisture content as determined by ASTM D Fill and Backfill A. General: Place acceptable soil material in layers to required subgrade elevations for each area classification listed below. The on-site soils may be used for fill material provided they are free of topsoil and organic material. Rock fragments and slabs smaller than 6 inches in thickness in any direction may also be used. Larger rock fragments may be placed in landscaped areas provided they are three feet below grade. 1. The upper 12 to 18 inches of wall backfill should consist of low-permeability clayey soils compacted to the Standard Proctor value recommended above. This top layer should limit infiltration of surface water into backfill. 2. Maximum particle size in wall backfill should be limited to about 1.5 inches. B. Fill material should be compacted to the following percentages of their Standard Proctor maximum dry density (ASTM D-698): LOCATION % OF MAXIMUM DRY DENSITY Footings & Floor Slabs 100% Paved Areas 98% Landscape Areas 85% 1. Field density tests and monitoring should be performed by a Special Inspector as the Lifts are being placed to verify that compaction standards are met. Place fill/backfill in 6 inch horizontal lifts with each lift compacted as noted. Testing of only the final lift does not insure that the fill has been correctly placed. Clays with a Plasticity Index of over 30 percent should not be used above an elevation of minus 2 feet from bottom of foundations, minus 3 feet from building floor slabs or minus 2 feet of other slabs, sidewalks or pavements. Based on the previous note, lime stabilization/treatment will likely be required for the site soils above those elevations. 2. Based on the determined natural moisture contents, spreading and drying or wetting of the soils may be necessary prior to placement and compaction of the fill. 3. Close field supervision should be exercised when using soils existing at the site as backfill. If excessively wet, these soils are difficult to work and offer low strength. If they have moisture contents at or close to optimum, they are readily compacted. 4. In excavations, use satisfactory excavated or borrowed material. 5. Under grassed areas, or planting areas, use satisfactory excavated or borrowed material. No rock, gravel or similar material shall be used in the final 18 inches of subgrade. 6. Under walks and pavements, use subbase material, or satisfactory excavated or borrow material or combination of both. 7. Under steps, use subbase material

8 C. Back fill against building walls: Where backfill is required against building walls, clean free-draining crushed stone extending out away from building wall a minimum of 2 feet shall be installed and it shall be encapsulated in filter fabric as noted under materials with 4 inch PVC perforated drain in a sock as shown on the drawings. 1. Crushed stone backfill shall be placed in maximum 12 inch thick lifts and densified by vibrating equipment or other means. D. Backfill excavations as promptly as work permits but not until completion of the following: 1. Acceptance of construction below finish grade including, where applicable, damp-proofing, waterproofing and perimeter insulation. 2. Inspection, testing, approval and recording of locations of underground utilities. 3. Removal of concrete formwork, shoring and bracing and backfilling of voids with satisfactory materials. Cut off temporary sheet piling driven below bottom of structures and remove in manner to prevent settlement of the structure of utilities or leave in place if required. E. Ground Surface Preparation: Remove vegetation, debris, unsatisfactory soil materials, obstructions and deleterious materials from ground surface prior to placement of fills. Plow, strip or break up sloped surfaces steeper than 1 vertical to 4 horizontal so that fill material will bond with existing surface. 1. When existing ground surface has a density less than that specified under "Compaction" for particular area classification, break up ground surface, pulverize, moisture-condition to optimum moisture content and compact to required depth and percentage of maximum density. a) If excessively wet areas are encountered in the subgrade or other soils that can not be compacted satisfactorily, such areas shall be undercut as directed by Special Inspector and the soils replaced as directed by the Special Inspector in accord with paragraph 3.02 G. 2. All areas where fill will be placed shall be scarified and re-compacted before fill is placed. 3. Fills placed in location of building pad shall extend a minimum of ten (10) feet outside of building limits. 4. MOISTURE CONTROL IS CRITICAL DUE TO THE HIGH PLASTICITY OF THE SITE SOILS. 5. Maximum particle size of the soil should be limited to 4 inches in any one dimension. Additionally, no concentration of large fragments should be permitted. 6. Density testing should be performed as a means to verify percent compaction and moisture content of the material as it is being placed and compacted. 7. Observation of fill stability is also critical, so it is recommended to observe the operation of the filling equipment traversing over the new fill to document movement (similar to proofrolling). F. Cold Weather Protection. If any fill is placed during freezing or wet weather, do not use material that has become frozen or saturated. Remove any material on the exposed surface of fill areas that has become frozen overnight or that exceeds the optimum moisture by more than two percent (2%). 1. Before compaction, moisten or aerate each layer as necessary to provide optimum moisture content. Compact each layer to required percentage of maximum dry density or relative dry density for each area classification. Do not place backfill or fill material on surfaces that are muddy, frozen or contain frost or ice. 2. Place backfill and fill materials evenly adjacent to structures, piping or conduit to required elevations. Take care to prevent wedging action of backfill against structures or displacement of piping or conduit by carrying material uniformly around structure, piping or conduit to approximately same elevation in each lift

9 3.05 GRADING A. General: Uniformly grade areas within limits of grading under this section, including adjacent transition areas. Smooth finished surface within specified tolerances, compact with uniform levels or slopes between points where elevations are indicated or between such points and existing grades. 1. Test as required under quality control. B. Grading Outside Building Lines: Grade areas adjacent to building lines to drain away from structures and to prevent ponding. 1. Finish surfaces free from irregular surface changes and as follows: a) Lawn or Unpaved Areas: Finish areas to receive topsoil to within not more than 0.10' above or below required subgrade elevations. b) Walks: Shape surface of areas under walks to line, grade and cross-section with finish surface not more than 0.10' above or below required subgrade elevation. c) Pavements: Shape surface of areas under pavement to line, grade and cross-section with finish surface not more than 1/z inch above or below required subgrade elevation. C. Compaction: After grading, compact subgrade surfaces to the depth and indicated percentage of maximum or relative density for each area classification TOPSOIL INSTALLATION A. All areas disturbed by the Contractor's operation, not scheduled for other improvements, shall be prepared for planting or seeding. See Grading Plan for additional notes and requirements. B. Any lawn areas outside of the limits of grading disturbed by the Contractor's operations shall be returned to an acceptable condition by seeding as directed by the Landscape Architect. C. Topsoil Placement - Lawn Areas: After the subgrade soil has been prepared, topsoil shall be spread evenly thereon and lightly compacted to a minimum depth of 6 inches. No topsoil shall be spread in a frozen or muddy condition. 1. In areas where the original existing topsoil is still in place and relatively undisturbed, except for compaction, additional topsoil will not be required. 2. Areas to be sodded shall be brought to within the thickness of the sod of the finish grade. 3. Allowance for settlement shall be made 4. Areas where the topsoil has not been removed shall be scarified, smoothed and sticks, stones and rubbish shall be removed. D. Topsoil Placement - Planting Areas: Topsoil shall be placed in all planting areas as shown on the grading and planting plan to a minimum depth of 12 inches. Refer to grading plan and grading note. 1. Tree pits as shown on the planting plan away from the building in lawn areas will only receive the 6 inches of topsoil required for lawn areas. The landscape subcontractor shall be responsible for changing soil in these areas. E. Finish Grading. 1. The finish surface shall be smooth and free of bumps, depressions or other irregularities or foreign materials. If areas to be sodded have been heavily compacted, they shall be disked, rolled and dragged to prepare a suitable growing media

10 3.07 MAINTENANCE 3.08 WAY A. Protection of Graded Areas: Protect newly graded areas from traffic and erosion. Keep free of trash and debris. Seed and mulch as individual project areas are completed. Refer to Section Seeding and Sodding. 1. Repair and reestablish grades in settled, eroded and rutted areas to specified tolerances. 2. Maintain erosion control devices until completion of work. B. Reconditioning Compacted Areas: Where completed compacted areas are disturbed by subsequent construction operations or adverse weather, scarify surface, reshape and compact to required density prior to further construction. A. Where settling is measurable or observable during project warranty period, remove surface (pavement, lawn or other finish), add backfill material, compact and replace surface treatment. Restore appearance, quality and condition of surface or finish to match adjacent work and eliminate evidence of restoration to greatest extent possible DISPOSAL OF EXCESS AND WASTE MATERIALS A. Remove excess trash, debris and waste materials and dispose of it off Owner's property. B. Excess earth materials, free of debris, may be deposited elsewhere on adjacent properties as approved by the Industrial Foundation. END OF SECTION