Loading...
HomeMy WebLinkAbout3163-5LANDSCAPE CONSTRUCTION 0 r` 1. SCOPE The work of this section includes all labor, materials and equipment required to complete work DESIGNED BY: indicated on the drawings. The work shall be performed in accordance with the best standards of DATE: practice relating to the various trades and under the continuous supervision of a competent foreman, 11. capable of interpreting the drawings and these specifications. The work included in this section is as 5 6 follows: Finish Grading for Planting; Soil Preparation; Fertilization; Planting, including lawn; d00 Maintenance; Inspection and Certifications; Guarantees; Clean-up: Staking, Guying and Espaliering; N v1 9Cn00 Miscellaneous Allowances. 2. APPROVALS * � A. All sprinkler work shall be inspected and approved prior to the start of any planting. �� B. Prior to excavation for planting or placing of stakes, locate all utilities, electric cables, conduits, ; sprinkler lines, heads, valves and valve control wires, and all utility lines so that proper precautions may be taken not to damage such improvements. In the event of a conflict W79 between such lines and plant locations, promptly notify Landscape Architect (LA.) who shall q,T� arrange for relocation for one or the other. Failure to follow this procedure places upon � Contractor the responaibiliity for, at his own expense, making any and all repairs for damages V °0° W resulting from work hereunder. � 3. QUANTITIES AND TYPES . � r F -i Plant materials shall be furnished in the quantities and/or spacing as shown or noted for each location, W�-! �-++ (= and shall be of the species, kinds, sizes, etc., as symbolized and/or described in the "Plant Material U Legend" , as indicated on the drawings. The LA has prepared this list only as a convenience to oa Contractor and assumes no responsibility for its accuracy. The Landscape Contractor is to verify all sizes and quantities. 4. VERIFICATION OF DIMENSIONS AND QUANTITIES Dimensions aro approximate. Before proceeding with any work, Contractor shall verify all dimensions and quantities and shall immediately inform LA. and Owner of any discrepancies between the drawings and/or specifications and actual conditions. No work shall be done in any area where there is such a discrepancy until approval for some has been given by LA and Owner. 5. INSPECTION A. All inspections shall be made by LA and Owner. Controctor shall request inspection at least two days in advance of the time inspection is required. B. Inspection will be required for the following parts of the work: During finish grading and soil preparation 2 Plants, after delivery to site and prior to planting. �1 3� When vines, shrubs and trees aro spotted for planting, but planting holes are not excavated. 4 Specimen trees at source, before delivery. 5 Lawn areas prior to planting. 6 Planting areas prior to planting. 7 All landscape construction items, prior to the start of the calendar day maintenance period ("Final Inspection . 8At completion of calendar day maintenance period ("Final Maintenance Inspection shall 9 Inspection reports shall be made for each inspection by the L.A. and one copy be submitted to Owner and Contractor. 6. CERTIFICATION Prior to job acceptance written certifications shall be submitted to the LA for the following: A. Quantity and Quality of Commercial Fertilizer and Organic Fertilizer. B. Quantity and Quality of all Soil Ammendments called for by Plans and Specifications. 7. MATERIALS Plant materials indicated on the drawings and heroin specified shall conform to the following: 12. A. Nomenclature - Plant names indicated on the drawings conform to "Standard Plant Names" established by the American Joint Committee on Horticulture. Except for names covered therein, the established custom of the nursery is followed. B. Condition- Plants shall be symmetrical, typical for variety and species, sound, healthy, vigorous, free from plant disease, insect pests, or their eggs, and shall have healthy, normal root systems, well filling their containers, but not to the point of being root bound. Plants shall not be pruned prior to delivery, except as authorized by LA or his representative. In no case shall trees be topped before delivery. C. Dimension - The height and spread of all plant material shall be measured with branches in - their normal position, and shall be as indicated on the drawings. The caliper of all trees shall be measured 4'-0" above the surface of the ground. Where caliper or other dimensions of any plant materials aro omitted from the "Plant Legend", it shall be understood that these plant 13. materials shall be normal stock for type listed. D. Inspogfmn - All plant materials must have been previously inspected at the nursery by the County Horticultural Department, and shall be subject to the inspection and approval of the L.A. before planting. E. Plant List- Is indicated on drawings. F. Sizes of elants - Shall be as stated on the Plan. Container stock (1- gallon, 5- gallon and 15 -gallon), shall have been grown in containers for at least one (1) year, but not over two years. G. Substitutions- Substitutions for the indicated plant materials will be permitted provided the substitute materials aro approved in advance by the LA, and the substitutions aro made at no additional cost to Owner. Except for authorized variations, all substitute plant materials shall conform to the requirements of these specifications. If the accepted substitute materials are of a leas value than those indicated or specified, the Contract price will be adjusted in accordance with the provisions of the Contract. H. Plants Not Approved - Plants not approved aro to be removed from site immediately and replaced with suitable planta. The LA. and/or Owner reserves the fight to reject entire lots of plants represented by defective samples. 8. FERTILIZERS AND SOIL CONDITIONERS 14. Samples of all soil amendments, sod and plants shall be submitted for inspection and stored on the site until furnishing of materials is completed. Delivery may begin upon approval of aamples or as directed by LA. and the Owner. A. Organic fertilizer shall be processed sewage sludge with a minimum content of 1% Nitrogen and 2% Phosphoric Acid similar to "Nitrohumus". Method of processing shall not destroy normal bacterial content. Note sewage sludge should not have a normal bacterial count (Note this is part of Grow Powers Specifications) B. Nitrogen stabilized sawdust shall be bulk, with the following nitrogen content based on dry weight: 0.5% for Redwood Sawdust 0.7X for Fir Sawdust 1.OX for Bark or Pine Bark or Mixture SWi* - the saturation extract conductivity shall not exceed 3.5 millimhos /cm at 25 C. Commercial fertilizer shall be delivered in sacks with manufacturers label showing weight and 15. analysis attached to each sack. 9. STAKING MATERIALS A. Tree -staking shall be as per plan. B. Ties for holding trees shall be as per plan. Note no wire ties to be used on street trees 10. GRADING AND SOIL PREPARATION A. Contractor is to finish grade to within 1/10th of a foot or 1" below paving where paving exists. B. Moisture Content - The soils shall not be worked when the moisture content is so great that excessive compaction will occur, and not when it is so dry that dust will form in the air or that clods will not break readily. Water shall be applied if necessary to provide ideal moisture content for tilling and for planting. - C. Preliminary Grading - Preliminary Grading shall be done in such a manner as to anticipate the finish grading. Excess soils shall be removed or redistributed before application of fertilizer and mulch. Where soil is to be replaced by plants and mulch, allowance shall be made so that when finish grading has begun, there shall be no deficiency in the specified depth of mulched planting beds. D. Weeding - Before and during preliminary and finish grading, all weeds and grosses shall be dug 16. out by the roots and disposed of off site (except those weeds and grosses not of the perennial type, less than 2-1/2" high and not bearing seeds, which may be turned under). Data more than 2-1/2" high and not bearing seeds may be turned under. Perennial weeds and grosses to 17. be removed include, but are not limited to, the following: Nut Gross, Puncture Vine, Dallas Gross, Mustard Plant, St. Augustine, Alfalfa, Johnson Grass, Wire Weed, Morning Glory. E. All Planting areas shall be scarified to a depth of 12 inches below grade with the spacing of the ripper teeth no greater than 12 inches on center prior to placing conditioners and fertilizers. All rock and debris mora than 2" in diameter shall be removed from the site. F. Trenches- If irrigation system is installed after grading and fertilizing is completed, the upper portion of the backfill shall be refilled and fertilized to the depth specified for the area required, to conform to the specifications. SOIL CONDITIONERS (To be revised per soils report) A. Turf, Ground Cover do Shrub Area: With the exception of the slopes the areas to be landscaped should be cross -ripped or otherwise tilled to a depth of 9-12 inches. For turf and ground cover planting, the following amendment should be uniform by broadcast and thoroughly incorporated to a depth of 6 inches by means of rototiller or equal; AMT PER 1,000 SQUARE FEET 6 cu. yds. nitrogen stabilized organic amendment derived from redwood sawdust, fir sawdust or cedar sawdust 12 lbs. 16-20-0 ammonium phosphate (to be incorporated to the 6" depth following leaching). Following amending and prior to planting, including trees and shrubs, leaching irrigations should be made in a manner that will pass the minimum of 12 inches of water through the surface soil zone. When the leaching program has been completed, additional samples should be collected for soil fertility analyses only. B. Slopes: 300 lbs./acro 16-20-0 ammonium phosphate 300 lbs./acro urea formaldehyde Mulch Silva Fiber Plus, 2,000 Ib./acro Binding agent (per Contractors accepted procedure) While the urea formaldehyde is a slow-release nitrogen fertilizer, it will probably be necessary to make dry supplemental fertilizer applications, particularly during the establishment period. If this is the case, the 16-20-0 should be uniformly broadcast over dry slope areas at the rate of 6 pounds per 1,000 square feet and followed with a normal irrigation at each fertilizing period. C. Planting Pits - Tree do Shrub, All areas inluding slopes: Planting pits shall be excavated twice the diameter and twice the depth of the rootball. Backfill shall then be added as specified. (1) A chemically suitable sandy textured import soil meeting the following specifications should be used for backfill to the depth of the rootball. For trees, shrubs and vines (other than azaleas, ferns and palms). Silt plus clay content of the import soil shall not exceed 30 X by weight with a minimum 95X passing the 2.0 millimeter sleeve. The sodium absorption ratio (SAR) shall not exceed 6 and the electrical conductivity (ECe) shall not exceed 3.0 millimhos per centimeter at 25 degrees centigrade. The boron content shall be no greater than 1 ppm as measured on the saturation extract. In order to insure conformance, samples of the import soil should be submitted to the laborotory for analysis prior to and following backfilling. The backfill mix for use around the rootball should be prepared as follows: 6 parts by volume sandy -textured import soil 4 parts by volume nitrogen stabilized wood residual 1 Ib. 16-20-0 per cu. yd. of mix 2 lbs. iron sulfate per cu. yd. of mix The above materials should be thoroughly blended prior to use for backfill purposes. Also, the iron sulfate should not contact cement surfaces since severe staining could occur. Apply planting tablets as per manufacturers recommendations. If the 16-20 is incorporated preplant as recommended, the post plant maintenance can consist primarily of a nitrogen -only fertilizer program. Beginning approximately 30 days after planting, ammonium sulfate should be applied at the rate of 5 Iba./1,000 s.f. or ammonium nitrate at the rote of 3 Iba./1,000 s.f. on a monthly basis. However, in order to ensure continuing adequate soil phosphorus and potassium nutrition, Best Fertilizer Company s 16-6-8 or equal should be substituted for the nitrogen materials twice a year at the rote of 6 pounds per 1,000 square feet. Also, when plants have become well established, the frequency of fertilizer applications can be decreased. D. The prepared soil shall be uniformly blended in an area adjacent to the planting work and shall be accurately proportioned using a suitable measuring container. Unused excavated soil shall be removed from site. Protect the mix from water until it has been placed in backfill around plants. FINISH GRADING When preliminary grading, including weeding and fertilizing, has been completed and the soil has dried sufficiently to be readily worked, all lawn and planting areas shall be graded to the elevations indicated on the drawings. Grades not otherwise indicated shall be uniform levels or slopes between points where elevations aro given. Minor adjustments of finish grades shall be made at the direction of the LA., if required. Finish grade shall be a smooth, even and uniform plane without abrupt change of surface. Soil areas adjacent to buildings to allow a natural run-off of water, and surface drainage shall be directed as indicated on the drawings by remodeling surfaces to facilitate the natural "nun -off" of water. Low spots and pockets shall be one inch below grade of adjacent pavement of any kind. Grading shall be done when soil is at optimum moisture content for working. METHOD OF PLAITING AND WORK PROCEDURE A. No planting shall be done until all operations in conjunction with the installation of the irrigation system have been completed, final grades hove been established, the planting areas have been property graded and prepared as specified, !and the work approved by the LA B. The relative position of all trees and plants is subject to approval by L..A. and Owner, and they shall, if necessary, be relocated as directed as part of the Contract. C. All plants shall be removed from their container and set so that, when settled, they bear the same rotation to the required grade that they bore to the natural grade before being transplanted. Each plant shall be planted in the center of the pit and backfilled unless otherwise specified, with the prepared soil. No soil in muddy condition shall be used for backfilling. No filling will be permitted around trunks or stems. All broken or frayed roots shall be properly cut off. D. LA. and/or Owner shall supervise the placing and planting of all plants. E. In the event that underground construction work or obstructions aro encountered in the planting operation, alternate locations for plant material will be selected by LA and Owner, operation will be done at no extra cost to Owner. PLANTING OF TREES A. Position plants in plant locations indicated on drawings' and secure approval before excavating pits, making necessary adjustments as indicated. B. All pits for trees shall be dug square with bottoms level, the length of sides equal to 2 1 /2 times the diameter of the tree ball. Compacted soils at sides and bottoms shall be loosened by scarifying or other approved method. Pits shall be backfilled with "prepared soil" to the required grade, and the balance of the pit filled with "prepared soil" thoroughly settled by water application. C. Set plants in center of pit, in a vertical position, so that crown of ball will be level with finish grade after allowing for watering and settling and shall bear the same relationship to the finish grade that it did to the soil surface in the container. D. Prepare depressed water basin as wide as plant balls at each plant. Water thoroughly, backfilling any voids with additional prepared planting mix. PLANTING VINES, SHRUBS AND GROUNDCOVERS A. Vines and shrubs shall be planted in pits at least 18" greater in diameter than their ball of earth and at least 12" below the bottom of the ball. Compacted soil at bottom of pit shall be loosened and the pit filled with "prepared soil' to the bottom of the ball. When the plant has been properly set, the pit shall be filled to the required grade with "prepared soil" and thoroughly settled by taping and watering. All vines shall be removed from stakes, untied, and securely fastened in an approved manner to the wall, fence or other surface next to which they are planted. B. Prepare a depressed water basin as wide as plant balls at each plant. Water thoroughly, backfilling any voids with additional prepared planting mix. C. Ground Covers (1) Pits for flat sized plants to be at least 6"4740. Ground cover areas shall be moistened prior to planting. No flat plants shall be planted in dry soil. 2 () Set plants in center of pita so that crown ofplant will be level with finished grade after settling of soil, then backfill and water. (3) Flatted plants shall be well -rooted with runners at least 4" but not more than 6" in length. TREES AND VINES OCCURING IN LAWN Trees and vines occurring in lawn shall be planted before final preparation of those areas. CARE OF PLANTS BEFORE AND DURING PLANTING Plants shall not be allowed to dry out before or while being planted. Keep exposed roots moist by means of wet sawdust, peat moss or burlap at all times during planting operations. Do not expose roots to the air except while being placed in the ground. Wilted plants, whether in place or not, will not be accepted and shall be replaced at the Contractor's expense. 18. WATERING BASINS A. Construct a firmly compacted mound of soil around each tree and plant to form a watering basin at the edge of and following the shape of the planting pit area. Mounds or trees and for vines from 5 -gallon or larger containers, shall be at least 4 high. Mounds for all other trees, Vines or plants not otherwise specified shall be at least 2" high. Excavated earth, if capable of retaining water, may be used. Any settlement within the basins retaining water shall be refilled to the required grade with prepared soil, and additional nitrogen stabilized sawdust worked into the surface as required to restore the mulched condition. B. At the end of the day maintenance period all watering basins in lawn areas shall be leveled to finish grade and the area shall be, sodded with the specific sod. 19. SODDED LAWN A. Cultivate all lawn areas to a depth of 8". Rocks and debris larger than 1" in diameter which aro brought to the surface by cultivation shall be removed from the site. If cultivation does not break lumps, a spike tooth harrow shall be pulled behind a mechanical seeder or tractor. B. Areas to be planted in lawn shall be finished smooth to present a neat and uniform grade prior to installation of sod. The lawn bed shall be inspected by the LA to determine suitability for planting prior to sodding. Contractor shall obtain such approval before sodding. C. All sodded areas shall be thoroughly watered. Lawns aro to be kept continuously moist by watering as often os required. D. Any lawn areas that do not show a prompt catch of grass shall be re -sodded at ten day intervals until an acceptable stand of grass is assured. 20. WATERING A. Immediately after planting, water shall be applied to each tree by means of a hose. The water shall be applied in a moderate stream in the planting holes until the material about the roots is completely saturated from the bottom of the hole to the top of the ground. B. Plants which cannot be watered efficiently with the existing water system shall be watered by means of a hose. C. Apply water in sufficient quantities, and as often as seasonal conditions require, to keep the ground wet at all times, well below the root system of gross and planting. Care is to be taken in watering slopes so as not to cause erosion damage. D. Following the planting of ground cover plants fumished in flats, each plant shall be immediately and thoroughly watered by means of a hose with a slow running stream of water. 21. TREE STAKING A. Stake all non -guyed trees at time of planting by placing stake in the prepared hole and driving it 18" into solid ground. Plant the tree as close to the stake as possible without crowding the roots. Fasten the tree to the upper end of stake in at least throe places using "cinch ties". (See Drawings) B. Trees 36" box size or larger, shall be immediately guyed after planting with not less than three guys per tree, or as directed by the LA 1 Protect bark of tree by covering wire with green 1/2' diameter rubber hose. 2J Guys to be anchored by 2"x2"x2" redwood driven flush with finish grade or 1 "x2' galvanized pipe in rocky areas. (3) Guy wires shall be 112 ga. galvanized wired. Mark guys with 3'-0" long 1/2" dia. white PVC pipe. (4) Guy lines aro to be tightened to firm tension. 22. ESPALIERING OF VINES All trellises and stakes aro to be removed from plants and the plants shall be fastened and trained against fences or walls as directed by the L.A. 23. CERTIFICATES In addition to any other certificates specified, Contractor shall furnish a certificate with each delivery of bulk material, stating the source, quantity and type of material and that the material conforms to the specification requirements. For bulk delivered organic fertilizer, the certificate shall also state the volume, net weight, percent of Nitrogen and percent of Phosphoric acid. For each fertilizer and soil conditioner, in containers, a similar certificate or invoice shall be furnished stating total quantities by weight and volume for each material. These certificates shall be submitted to the LA and Owner prior to the strort of the maintenance period. 24. PROTECTION Contractor shall carefully and continuously protect all areas included in the Contract, including plant materials, fences, supports, etc., until final acceptance of the work by the LA. and Owner. 25. MAINTENANCE A. Contractor shall maintain a sufficient number of men and adequate equipment to perform the work hero in specified. Plant maintenance work shall consist of applying water, weeding, caring for plants, including groundcovers, shrubs and trees, edging, aeroting and mowing of lawns, fertilizing and control of pests and diseases. B. Damage to any planted area shall be repaired immediately. Depressions caused by vehicles or foot traffic shall be filled with topsoil, leveled and replanted. Exterminate gophers and moles, and repair damage. C. The entire project shall be maintained for a period of 90 days commencing from the time all items of work have been completed to the satisfaction of LA and Owner. D. The project shall be cared for in a neat, clean condition at all times to the satisfaction of Owner and L.A. 26. LAWN MAINTENANCE A. Watering - Water every day once per day for two weeks and thereafter gradually reduce frequency of watering to three times per week. Contractor shall continue to maintain the lawn until final acceptance by the LA and Owner. . B. f_4dilizing -Apply 16-6-8 at the rate of 5 pounds per 1,000 square feet three weeks after installation and water immediately thereafter. C. Diseases and Pest Control - Two weeks after installation of lawn, apply a granular mercurial fungicide of 1.8X mercurous chloride as per manufacturer's recommendation. D. M2w!M - The lawn shall be mowed at a height of 1-1/2" with a rotary mower, equipped with rollers, before it reaches 2" in height. Collect gross clipping during mowing operations and remove from the site. 27. GROUNDCOVER AND SHRUB AREA MAINTENANCE A. 1Watering -New plantings shall be watered once per d for two (2) weeks after installation. Reduce watering to every other day for the next two (21 weeks. Water thereafter three (3) times per week until final acceptance. B. Fertilization - Fertilize three (3) weeks after planting with 5 pounds 16-6-8 per 1,000 square feet; fertilize thereafter every thirty (30) days. C. Disease and Pest Control - For control of slugs and snails, apply pelletized tricalcium arsinate 5X by weight and metaldehyde 5X by weight as per manufacturer's recommendations. two (2) weeks after installation. D. Pruning - All shrubs and trees shall be pinch pruned as necessary to encourage new growth and to eliminate rank sucker growth. Old flowers, and dead foliage and limbs shall be removed. No major pruning shall be done without the approval of the LA E. Weeding - All planting areas including lawn, groundcover and shrub areas shall be kept weed -free at all times. Weed shall be dug out by the roots and disposed of off site. Upon completion of the day maintenance period, the Contractor shall fertilize per #26 - Lawn Maintenance and #27 Groundcovers and Shrub Area maintenance of these specifications. 28. GUARANTEE AND REPLACEMENTS A. All shrubs and groundcover shall be guaranteed by Contractor as to growth and health for a period of ninety (90) days after completion of the specked maintenance period, and/or final acceptance by the LA. All trees up to 20" box size shall be guaranteed by Contractor to live and grow in an acceptable upright position for a period of six (6) months after completion of the specified maintenance period, and/or final acceptance upright position for a period of one (11)) year after completion of the specified maintenance period, and/or final acceptance by the B. All plants that show signs of failing growth at any time during the life of the Contract, including the maintenance period, or those plants injured or damaged as to render them unsuitable for the purpose intended, shall be guaranteed as specified for the original guaranteed materials. 29. CLEAN-UP Upon completion of the work in this section, Contractor shall remove all rubbish, trash and debris resulting from the oprerotions; remove disused equipment and implements of service; leave entire area involved in a neat and acceptable condition such as to meet the approval of the Landscape Architect (LA). HYDROSEED 1. GENERAL A. Equipment must have minimum capacity of 1,500 gallons and a positive displacement pump with the ability to agitate and properly mix the specified materials. Pump must be capable of creating 100 pounds psi pressure with sufficient volume to distribute above slurry evenly over 12,000 sq. ft. within a 15 -minute period. B. Vendor furnished label: Vendor agrees to furnish not less then two (2) employees during all hydromulching applications. C. The vendor shall fully guarantee his work and services and shall be fully insured and be prepared to furnish satisfactory evidence of such insurance upon demand. 2. SLOPE & PLANTING AREA PREPARATION A. Scarification - Prior to installation of the irrigation system, the surface of all slopes shall be cleaned and grubbed to prepare the slope surface for seeding. B. IfI& - Shall be Silva Fiber Plus (at 2,000 pounds per acro), a green colored, fibrous mulch, containing no growth or germination inhibiting factors. Silva Fiber Plus is manufactured in such a manner that after addition of seed, fertilizer, water and additives in a special 1500 -gallon slurry tank, the fibers and above -materials will become uniformly mixed to form a homogeneous slurry; and using the green color to facilitate proper distribution, the slurry shall be hydraulically sprayed onto the ground forming a blotter -like groun4 cover which after application will allow the absorption and retention of moisture. Suppliers shall be prepared to certify that laboratory and field testing of their product has been accomplished, and that it meets all of the foregoing requirements, based on testing. Weight specifications of this material from suppliers, and for all application, shall refer only to air dry weight of the fiber material. Absolute air dry weight based on the normal standards of the Technical Association of the Pulp Industry for Silva Fiber Plus is considered equivalent to 10% moisture. Each package of Silva Fiber Plus shall be marked by the manufacturer to show the air dry weight content. C. Seed Mixes Turf Seed Mix: "Marathon" by Southland Sod 11 SloR2 seed Mix: Applied at LBS. Per Acre Fuel Modification Seed Mix: D. Weed Abatement Program - Upon completion of the irrigation system and after all existing weeds have been removed from the planting areas, the following weed prevention shall be used: Apply fertilizer mixture by spray per acro as follows: 300 lbs. 12-12-12 commercial fertilizer 300 lbs. urea formaldehyde 1000 lbs. agricultural gypsum Apply pro -emergent herbicide as recommended by a licensed pest control advisor to be compatible with the seeded plant varieties. Apply mixtures per the following time schedule: Fertilize/water 21 days Wait 2 days Spray the pro -emergent per Peat Control Advisor recommendations 7-10 days Fertilize/water 14 days Spray Weed Mixture 7 days Fertilize/water 14 days Spray Weed Mixture 7 days Grub/Clean all areas to prepare for seeding 2 days Plant 23 days maximum 3. PLANTING TOTAL 100 days maximum A. Trees and Shrubs -Trees and shrubs can be planted after weed germination and during the contact kill of weeds, as specified. B. Hydroseeding (1) When all weeds have been eliminated to the satisfaction of the landscape architect and the owners authorized representative, the hydroseeding operation may begin. (2) The materials for seeded areas shall be machine mixed before application. (3) The mixture of stolons or seed and additives aro to be applied by a Hydro -Mulching machine. The nozzle height shall be between 6' and 10' above the ground level. Discharged pressure at the nozzle shall be 100 psi. (4) Spraying shall be done in a sweeping motion allowing the slurry to fall evenly and eventually build up a consistent matting. (5) Soil moisture: Area to be planted shall be irrigated to obtain 12 inches of penetration. This should be done 4 to 7 days prior to planting. C. Mixture (1) Commercial fertilizer shall be applied at the following rotes: 500 lbs./Acre .... 16-20-0 (Best Fertilizer Company Crop maker or equal) (2) Fiber material (conwed 2000) at the rate of 2,000 lbs./Acro. (3) Water with mixture of 3,000 gallons/Acre. (4) Stabilizing binder - 120 lbs/Acro for slopes, 80 lbs/acro for flat areas D. Watering - Immediately after planting, the slopes and other planting areas shall be watered with a fine spray, caro being taken to ovoid erosion, and the planted area kept moist until the seed has germinated (or the plants have become established). E. Cly - After completion of the work, all rubbish and surplus material shall be removed from the site, and it shall be left neat and clean. 4. PLANT ESTABLISHMENT A. jrAn#WQn - The irrigation system will be operated to provide an optimum amount of surface moisture for germination of the seeded varieties avoiding all run-off and deep saturation of water. B. Fertilization - The area shall be hydro -fertilized every 30 days after planting with the following combination of materials: 250 lbs./Acre .... 16-6-8 (Best Fertilizer Company Crop Maker or equal) C. Pro -Emergent Herbicide - Sixty (60) days after planting, apply a broad spectrum pre -emergent herbicide as recommended by an experienced licensed pest control advisor. 5. MAINTENANCE A. Maintenance of the project shall be for a period of 90 days. B. Maintenance shall include all watering, fertilization, mowing, weeding, cultivating, spraying and pruning necessary to keep the plant materials in a healthy growing condition and to keep the planted areas neat and attractive throughout the maintenance period. C. Protect all planted areas against damage, including erosion and tresspassing, by providing and maintaining proper safeguards. D. During the maintenance period, all planted areas shall be kept well watered and weed -free at all times. E. From the time any planting is done, until the end of the maintenance period, the Contractor shall maintain a sufficient number of men and adequate equipment to perform the work herein specified. F. The Contractor will be relieved from maintenance work when the final plant establishment and maintenance work has been completed to the satisfaction of the Owner. G. Damage to planting areas shall be replaced immediately at the Contractor's expense. H. Depressions caused by vehicles, bicycles, or foot traffic, shall be filled and leveled. Replant damaged areas. I. Exterminate gophers and moles, ground squirrels, and repair damage as above. J. All paved areas will be washed and maintained in a neat and clean condition at all times, as directed by the Owner. K. Pinch -prune all shrubs and trees to encourage new growth and to eliminate rank sucker growth. Remove all old flowers and dead foliage and limbs. Do no major pruning without the approval of the Owner. Remove damaged branches on trees back to point of growth. Treat cuts over 2" in diameter with an approved tree wound drawing. L During the maintenance period, should the appearance of any plant indicate weakness and probability of dying, immediately replace that plant with a new and healthy plant of the same type and size without additional cost to the Owner. M. At the end of the maintenance period, all plant material shall be in a healthy growing condition. N. Contractor shall continue the maintenance period past the specified date at no additional cost to the Owner until all deficiencies have been corrected. CITY OF FONTANA, CALIFORNIA 0 r` DRAWN BY: SCALE; DESIGNED BY: / DATE: CHECKED BY: APPROVED DATE:/ 3 D Z CITY ENGINEER R.C.E.TI/r EXP. DATE •p DWG. NO. 3163 5 6 0 1 1 t7 rn Z N Ei 1 X W P* _<� V V� C) �4 _t:� (=> a 4 o0 N ,-.) O'� P4 � e = (=> H Cd 6 r-1.4 �� A4 vA ^O W,' A4 V O CU ^ et tn ^" a 1t -� r v-11 C) P4 C Cn �4 6 .Ie!� C!� C�w O w w �� W � a .,:� Cn a^ . U F+I E' ` H E_ a C4 a w DRAWN BY DATE \..prOSCAPE q, 59< 2/6/02 -� K3�418FRF i� JOB NO. �� yA "TO114 * 10/31/02 * SHEET NO. 4>1 R� DateL-5 I CF CAO f OF rp SHTS. 0 r` U z d'0 d00 N v1 9Cn00 * � V!) �� w ; P-+ w W79 0 q,T� 0 � �� aZ V °0° W � W Cn A . � r F -i w 2 W�-! �-++ (= U 0 oa v-11 C) P4 C Cn �4 6 .Ie!� C!� C�w O w w �� W � a .,:� Cn a^ . U F+I E' ` H E_ a C4 a w DRAWN BY DATE \..prOSCAPE q, 59< 2/6/02 -� K3�418FRF i� JOB NO. �� yA "TO114 * 10/31/02 * SHEET NO. 4>1 R� DateL-5 I CF CAO f OF rp SHTS.