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HomeMy WebLinkAboutMINUTES - 10222002 - C65 TO: BOARD OF SUPERVISORS FROM: MAUR.ICE M. SHIU, PUBLIC WORKS DIRECTOR DATE: October 22, 2002 SUBJECT: APPROVE and AUTHORIZE the Chair, Board of Supervisors to execute a contract With Freitas Landscape Maintenance in the amount of $45,216.00 to provide landscape and grounds maintenance for the MonTaraBay Community Center/Ballfield and Montalvin Park, for the period October 1, 2002 through September 30, 2004, San Pablo area. (District I) Project No. 7489-6X5185 SPECIFIC REQUEST(S)OR RECOMMENDATIONS)&BACKGROUND AND JUSTIFICA T ION I. Recommended Action: APPROVE and AUTHORIZE the Chair, Board of Supervisors to execute a contract With Freitas Landscape Maintenance in the amount of $45,216.00 to provide landscape and grounds maintenance for the MonTaraBay Community Center/Ballfield and Montalvin Park., for the period October 1, 2002 through. September 30, 2004, San Pablo area. 11. Financial Impact: There is no impact to the County General Fund. Funds are generated from property taxes and program revenues in County Service Area M-17. Continued on Attachment:X SIGNATURE: { _. ,4 COMMENDATION OF COUNTY ADMINISTRATOR r RECOMMENDATION OF BOARD COMMITTEE i R.�AVP- ROVE _QTHER SIGNATURE(S): ACTION OF B(�R ON OCT. 22 , 2002APPROVED AS RECOMMENDED xxOTHER >� d VOTE OF SUPERVISORS XX UNANIMOUS(ABSENT } AYES: NOES: ABSENT: ABSTAIN: MF:sr I hereby certify that this is a true and correct copy G:\Gi-DData\SpDist\Board Orders\2002\10 October\ of an action taken and entered on the minutes of 10-22-02 BO-Freitas Landscape Maintenance.doc the Board of Supervisors on the date shown. Orig.Div:Public Works(Special Districts) Contact: Skip Epperly(313-2253) cc; County Administrator Assessorsor ATTESTED: OCTOBER 22, 2002 A Auditor-Controller JOHN SWEETEN,Clerk of the Board of Community Development Supervisors and County Administrator County Counsel Contract Binder(clerical) Contract Folder +� Contractor By Deputy CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 4 TREE PRESERVATION AND PRUNING 3. Arboriculture: The care of trees and shrubs by Dr. Richard Harris shall be used as a reference. B. PERSONNEL All tree pruning and removal performed shall be executed by a Contractor having, in full-time employment, an Arborist certified by the Western Chapter of the International Society of Arboriculture. Certification must be verified, and the Arborist shall be directly responsible for decisions made, and should visit the work sites daily when trimming of trees and roots is to be performed. 1.04 Permits and Authorization A. The Contractor shall seek authorization from the County prior to performing any pruning or removal work to County managed trees. B. Heritage Trees shall not be pruned or removed without first securing a Heritage Tree Permit issued from the County Community Development Department in accordance with the County Heritage Tree Ordinance. PART 2 PRODUCTS AND MATERIALS Root pruning shall be performed using a Vermeer Root Cutting Machine. Alternate equipment or techniques must be approved by the County. No other products or materials are specified. PART 3 EXECUTION 3.01. Tree Protection Any Contractor performing any construction, maintenance, or other activity shall adhere to the following tree protection guidelines, as applicable. A. At sites where excavation has occurred near trees that are to remain, and multiple living roots are exposed to the air, the Contractor shall cover the exposed roots within 2 hours with sand, soil, or moist burlap and water the impacted area. All damaged roots 1 V2" and larger in diameter shall be cut leaving a clean face. Immediately after cutting the root, the face is to be treated with tree seal, the required components are to be installed, and the applicable trench section is to be back filled and soaked with water. The Contractor shall follow these actions immediately in order to safeguard the health of all affected tree'. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page S TREE PRESERVATION .AND PRUNING B. Constriction materials, debris, and supplies shall not be stared within the dripline or protective fencing area under any tree. C. Vehicles shall not be parked within the dripline or protective fencing area. D. Woodchips or another cushioning surface material approved by the County shall be placed over areas where roots are present and construction traffic occurs. E. When indicated in the Reviewed Landscape Plans, or requested by the County, the Contractor shall place fences or other protective barriers around trees that are to remain. 3.02 Tree Pruning The Contractor shall perform tree pruning as part of routine maintenance service. A. Tree pruning shall be performed to enhance health and structure, balance the crown, and eliminate hazards. The main work performed shall be to reduce the sail effect through thinning, reducing end weights, shortening long heavy limbs, removing deadwood, weak limb, and sucker growth. Limbs shall be pruned back to an appropriate lateral branch. B. All final cuts shall be made at the outer edge of the branch collar. C. The Contractor shall undertake the following steps as needed: 1. Clear the crown of diseased, crossing, weak and dead wood to a minimum size of 1%' in diameter. 2. Remove stubs by cutting outside the woundwood tissue that has formed around the branch. 3. Reduce the weight on heavy, horizontal branches by selectively removing small diameter branches, no greater than 2-3", near the ends of the scaffolds. 4. Provide appropriate vertical and horizontal clearance over streets, roofs, sidewalks, walls, fences, etc. D. The following shall be followed to ensure that pruning operations do minimal damage to the tree. 1. Interior branches shall not be stripped off. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 6 TREE PRESERVATION AND PRUNING 2. Pruning cuts larger than 4" in diameter, except for dead wood, shall be avoided. 3. Pruning cuts shall be made outside the branch collar and shall not expose heartwood or leave stubs. Flush cuts are not permitted. 4. No more than 20%of live foliage shall be removed within the trees. 5. Appropriate tools and techniques shall be used to ensure that bark is not damaged during either climbing or pruning operations. This may require shortening limbs prior to removal and/or the use of specialized climbing gear. 6. Where the length of branches must be reduced, cuts may be made only to lateral branches large enough to assume the position of the removed tissue. As a general rule, lateral branches must be at least one third the diameter of the removed limb, at the point of attachment between the two. 7. Use of climbing spurs or gaffs is not permitted, E. Prior to climbing the tree, the arborist shall perform a root crown inspection for signs of weals, uplifted, adventitious, or broken roots, cracks or mounding of the soil, and decay, cavities, and other trunk defects. While in the tree, the arborist shall perform and aerial inspection to identify defects that require treatment. Any additional work needed shall be reported to the County immediately. F. Brush shall be chipped and the chips shall be spread underneath trees within the dripline to a maximum depth of 6". The trunk shall remain clear of any mulch. G. The Contractor shall be responsible for the protection of all improvements on both public and private property. Pruning includes the cutting of limbs, cleanup, removal and proper disposal of cuttings and debris. Elm logs must be properly disposed of per :State quarantine. Work shall be performed by a two-person crew with one climber, one ground person, a dumping chipper truck and chipper, and any other necessary saws, lines, tools, and safety equipment. The work area shall have appropriate cones and signs for safe pedestrian and vehicle traffic. 3.03 Root Pruning Root pruning is generally considered an incidental maintenance service, Mess the Contractor is installing improvements as part of a construction contract. CONTRA COSTA COUNTS LANDSCAPE STANDARDS Page 7 TREE PRESERVATION .AND PRUNING A. Tree roots greater than 3" in diameter and less than 12" below ground level shall not be cut without approval of the County. B. Roots shall be cut cleanly, as far from the trunk as possible. Root pruning shall be to a depth of 18". C. Root pruning shall be completed prior to base or subgrade preparation, or to any excavation adjacent to the tree. Root pruning may also be needed to halt uplifting of sidewalks or other improvements. END OF SECTION Y CONTRA COSTA COUNTY LANDSCAPE STANDARDS DRAFT Page 1 DISEASE AND INSECT CONTROL TABLE OF CONTENTS PART NAME PAGE PART GENERAL 2 1.01 Definition of Contractor 2 1.02 Scope of Work 2 1.03 Quality Control 3 PART 2 PRODUCTS AND MATERIALS 4 2.01 Chemicals 4 2.02 Tools 5 PART 3 EXECUTION 5 3.01 Monitoring 5 3.02 Treatment 6 CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 2 >` DISEASE AND INSECT CONTROL PART 1 GENERAL 1.01 Definition of Contractor The term Contractor is used in its broadest sense within this section. The Contractor may be a Developer/Contractor installing public improvements to be turned over to the County for maintenance, the County General Services Department, or maintenance Contractors hired on contract by the County. Responsibilities for each type of contractor are detailed herein. 1.02 Scope of Work A. CONTRACTOR RESPONSEBILITY AND COSTS LNICURR.ENCE 1. Developers/Contractors performing work prior to Final Acceptance of the improvements by the County shall perform all maintenance services, both routine and incidental, and incur all costs, at no charge to the County. 2. Work performed by the County General Services Department shall be charged to the appropriate work order number. Generally, separate work order numbers will be established for routine maintenance and incidental ' expenses. Reference shall be made to the inter-departmental contract for a listing of the appropriate work order number per given service area. 3. Maintenance Contractors hired on contract by the County shall bid on and provide all services designated as "routine maintenance" throughout this section. When bidding on a contract, the Contractor shall be responsible for identifying all services designated as routine maintenance. The County will allocate within the contract an additional dollar amount for County approved incidental expenses. All routine maintenance services shall be provided by the Contractor, at no additional expense to the County for the duration of the contract. B. .ROUTINE MAINTENANCE SERVICES Disease and insect control shall be a part of the Contractor's routine maintenance service. Only severe instances of disease outbreak or insectinfestation will be considered incidental maitenance service. If the disease outbreak or insect infestation is a result of the Contractor's actions or Contractor neglect, eradication measures and any associated repairs shall be made to the ,satisfaction of the County, at the Contractor's expense, with no charge to the County. The Contractor shall adhere to the following: CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 3 z D►ISEA WAIN'sSECT CONTROL 1. The Contractor shall monitor and manage pests to minimize damage to landscaping and minimize nuisances to the public from insect activity. The Contractor shall make every effort to prevent irreperable pest damage. 2. The Contractor shall act as or coordinate with a licensed specialist to identify any pest management problems that may arise in the landscaped areas. The specialist shall be familiar with various Integrated Pest Management {IPM} programs. The Contractor may be required to develop an IPM plan to effectively eradicate any diseases or pest problems that develop during the plant establishment maintenance period. The development and execution of the IPM program shall be the responsibility of the Contractor. 3. The work shall include the provision of all labor, materials, equipment, and apparati not specifically mentioned herein or noted on the Reviewed Landscape Plans, but which are incidental and necessary to complete the work. specified. C. RELATED WORK Related work specified elsewhere: 1. Refer to the PLANT ESTABLISHMENT MAINTENANCE section 2. Refer to the LONG TERM MAINTENANCE section 3. Refer to the TREE PRESERVATION AND PRUNING section 4. Refer to the TURF MAINTENANCE AND INSPECTION section 5. Refer to the TREE REM©VAI,AND TRANSPLANTING section 6. Refer to other sections as needed 1.03 Quality Control A. REFERENCE MATERIALS 1. McCain, Arthur H., Extension Plant Pathologist, Foliage and Branch Diseases oLandscape Tres, Cooperative Extension University of California, Division of Agriculture and Natural Resources, Leaflet 2616. (Provided as an appendix to this section). 2. Dreistadt, S., J.K. Clark and M.L. Flint. 1994. Pests of4Landscape Trees and Shrubs: An Integrated Pest Management Guide. Univ. of Calif. Cooperative Extension Publication 3359. 3. Johnson, W.T., and H.H. Lyon. 1988. .Insects that .Feed on Trees and n Shrubs. 2ed. Ithaca,NY: Comstock. CONTRA COS'T'A COUNTY LANDSCAPE STANDARDS Page 4 na DISEASE AND INSECT CONTROL 4. Synclair, W.A., H.L. Lyon and W.T. Johnson. 1957. Diseases of Trees and Shrubs. Ithaca,NY: Cornell University Press. B. PERSONNEL 1. The Contractor shall ensure that all employees using chemicals are trained in the proper use of the chemical being used and licensed or certified as required by state and local agencies. 2, Chemicals shall only be applied in a manner allowed by law, following requirements, instructions, and restrictions listed on the label, and with proper public notification given. C. SUBMITTALS The Contractor shall provide a copy of any spray report showing details of areas, times, chemicals, and rates of application. PART 2 PRODUCTS AND MATERIALS 2.01 Chemicals A. Improved horticultural oils (such as Sunspray 6EP) or insecticide soaps (such as SaferpSoap) shall be the first chemicals of choice as they are among the least toxic materials to animals. When using these chemicals, only plants with greater than control threshold levels of pests shall be sprayed. This will avoid eliminating populations of beneficial insects. B. The toxicity of pesticides is expressed as LD50 (Lethal Bose). The lower the LD50, the more toxic the chemical. Generally, chemicals with an LD50 of 500 and above are considered quite safe. C. Highly selective pesticides with minimal residual propertiesshall be used, and broad-spectrum, long residual materials shall be avoided where possible. D. The noxious weed, disease, and pest control methods may include any combination of the following: 1. Pre-emergent herbicide application 2. Post-emergent herbicide application 3. Mechanical cultivation and disposal 4. Weeding or mowing 5. Chemical growth regulators r CONTRA COSTA COUNTY LANDSCAPE STANDARDSDRAF1 rage 5 DISEASE AND INSECT CONTROL 6. Tree injection 7. Aquatic herbicide application 8. Trap and release techniques 9. Poison baiting 10. Debris or food source removal IL Water jetting 12. Insecticide, fungicide,rodenticide, or other pesticide application 13< Verdant and/or dormant spraying 14. Repeated control methods as necessary 15. Use of insect predators 16. Any other procedure recommended by the arborist, pest control advisor, or required by the County E. Under no circumstances shall agricultural chemicals be allowed to contaminate any open waterways or storm drain networks. The application rates shall not exceed the manufacturer's recommendations or be applied in a manner inconsistent with the label or pest control advisor's written recommendations, and any spilled material shall be cleaned up immedately and completely. 2.02 Teals All tools used in the management of pests and diseases shall be properly cleaned and sterilized to prevent the spreading of any pest or contageous disease. PART 3 EXECUTION 3.01 Monitoring A. Plant materials shall be periodically inspected by personnel trained in host and pest identification, biology, and management so that control actions can be defined. In general, monitoring shall occur monthly through the growing season (March through October). Where key pests are known to be troublesome on specific plant species ("hot spots"), monitoring should be timed according to the biological cycles of the pest. For example, where there is, a history of scale infestation, monitor weekly during the late spring for crawler emergence. fey plants, key pests, and treatment options are provided in Foliage and Bunch Diseases of Landscape Frees (LTC Lft. 2616), following this section. B. During monitoring, the following tasks shall be performed by the Contractor: 1. Identify any pests present. _- 2. In the absence of pests,note any plant symptoms. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 6 DISEASE AND INSECT CONTROL 3. Assess pest population and stage of growth. 4. Determine which sampling techniques are appropriate for the situation (e.g. trapping devices, pheromones, sticky tape). 5. Note existing or previous environmental conditions that influence pest development. 6. Evaluate degree of existing and potential injury to plant. 7. Evaluate population levels of predators and parasitoids on the pest. 8. Determine frequency of future monitoring needed based on the pest present and stage of development. 3.02 Treatment A. Disease and insect control programs shall follow a "least toxic" treatment plan to minimize negative impacts to the environment and landscape users. B. Pest problems shall be treated by undertaking the following steps. I. Accurately identify the pest and host. 2. Schedule monitoring to coincide with pest biology. 3. Assess the extent of damage to the plant or degree of nuisance to the public. 4. Evaluate management options. a. Improve cultural conditions for plant. Approaches include irrigating according to plant needs, providing moderate fertilization when needed, mulching, and ensuring adequate soil drainage. b. Evaluate possible mechanical controls. Approaches include pruning, which removes weak and dead wood that are potential brooding sites of boring insects. Thinning out dense crowns can reduce certain leaf diseases such as anthracnose and powdery mildew and increases spray penetration. Plant removal is also an option if the plant is severely',damaged. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 7 � DISEASE AND INSECT CONTROL c. Evaluate possible biological controls. Natural enemies include organisms that feed on pests (predators), parasitic organisms to the pests (parasitoids), or displace the pests with other organisms (competitors). When monitoring, assess present and potential plant pests and their natural enemies. d. Evaluate possible chemical controls. This approach shall only be taken after other options (cultural, mechanical, and biological) have been explored and exasperated. Where pest populations cannot be adequately controlled below threshold levels, targeted single applications of narrow-range chemicals specific to the pest, and with low toxicity to animals, may be applied. S. Apply appropriate, "least toxic" treatments identified in Part 2, Products and'Materials. 6. Apply all treatments according to the manufacturer's directions. 7. Inspect following a treatment to reassess pest populations. { 8. Apply additional treatments if necessary. The timing and method of application shall be designed to maximize pesticide effectiveness and minimizing adverse reactions be taking the following into account. a. Chemicals to control disease are usually most effective when applied as protectants before the disease organism invades the plant. b. Contact and systemic herbicides are most effective when applied while weeds are small. c. Pre-emergent herbicides should be applied before weed seeds germinate. d. Time insecticide applications to coincide with the most vulnerable part of the pest's life cycle. e. Soil, trunk, and root injections eliminate spraying close to Domes and places of activity and shall be done in use areas. 9. Identify specific plantings as "hot spots" that require monitoring specific to the pest encountered. CONTRA TItA COS`T'A COUNTY LANDSCAPE STANDARDS Page 8 DISEASE AND INSECT CONTROL 10. All tools used in the management of pests and diseases shall be properly cleaned and sterilized to prevent the spreading of any pest or contageous disease. END OF SECTION CONTRA COSTA COUNTS LANDSCAPE STANDARDS Page 1 µ TREE REMOVAL AND TRANSPLANTING TABLE OF CONTENTS PART NAME PAGE PART 1 GENERAL 2 1.01 Definition of Contractor 2 1.02 Scope of Work 2 1.03 Quality Control 3 1.04 Pennits and Authorization 4 PART 2 PRODUCTS AND MATERIALS 4 PART 3 TREE REMOVAL 4 PART 4 TREE TRANSPLANTING 5 3.01 Selecting Trees for Transplanting 5 3.02 Mechanical Tree Spade Method 9 3.03 Boxing Method 10 3.04 Maintenance of Transplanted Trees 12 CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 2 TREE REMOVAL AND TRANSPLANTING PART 1 GENERAL 1.01 Definition of Contractor The term Contractor is used in its broadest sense within this section. The Contractor may be a Developer/Contractor installing public improvements to be 'turned over to the County for maintenance, the County General Services Department, or maintenance Contractors hired on contract by the County. Responsibilities for each type of contractor are detailed herein. 1.02 Scope of Work A. CONTRACTOR RESPONTSIEILITY AND COSTS 1NCL)'RRENCE I. Developers/Contractors performing work prior to Final Acceptance of the improvements by the County shall perform all maintenance services, both routine and incidental, and incur all costs, at no charge to the County. 2. Work performed by the County General Services Department shall be charged to the appropriate work order number. Generally, separate work order numbers will be established for routine maintenance and incidental expenses. Reference shall be made to the inter-departmental contract for a listing of the appropriate work order number per given service area. 3. Maintenance Contractors hired on contract by the County shall bid on and provide all services designated as "routine maintenance" throughout this section. When bidding on a contract, the Contractor shall be responsible for identifying all services designated as routine maintenance. The County will allocate within the contract an additional dollar amount for County approved incidental expenses. All routine maintenance services shall be provided by the Contractor, at no additional expense to the County for the duration of the contract. E. INCIDENTAL MAINTENANCE SERVICES Tree removal and transplanting is generally considered an incidental maintenance service, unless specifically included in the maintenance contract. If the need for tree removal or transplanting is the result of the Contractor's actions or Contractor neglect, or if a newly installed tree is still under Contractor warranty, repairs shall be made to the satisfaction of the County, at the Contractor's expense, with no charge to the County. The Contract shall provide the following incidental maintenance services: CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 3 TREE REIVIOVAI, AND TRANSPLANTING 1. The Contractor shall furnish all labor, materials, and equipment required to safely transplant trees in a manner to ensure tree health and survival for a minimum of one year. 2. The Contractor shall furnish all labor, materials, and equipment required to safely remove trees that represent a hazardous condition due to age, disease, storm damage, accidents, infestation,power lines,etc. C. ROUTINE MAINTENANCE SERVICES Maintenance of transplanted trees is considered routine maintenance service, if the Contractor transplanted the tree or if the monitoring and maintenance is not being provided by a separate contractor. D. RELATED WORD Related work specified elsewhere: 1. Refer to the SOIL PREPARATION section 2. Refer to the IRRIGATION section 77 3. Refer to the TREE PRESERVATION AND PRUNING section 4. Refer to the LONG TERM MAINTENANCE section S. Refer to other sections as needed 1.03 Quality Control A. PERSONNEL 1. All work performed per this section shall be performed by a Contractor licensed to perform tree transplanting and removal and employs personnel familiar with pruning and tree maintenance. All work'shall be performed under the supervision of a person who is knowledgeable about the County's maintenance requirements and standards and who can effectively communicate with the County. 2. The Contractor's foreman and employees shall have sufficient knowledge of the project, of any applicable Reviewed Landscape'Plans, and of these Landscape Standards, so that the work can be performed in a manner consistent with all the specifications. B. SITE PROTECTION 1. In removing or transplanting trees, the Contractor shall erect barricades, guards, warning signs, lights, or other traffic control devices, as required CONTRA COSTA COUNTY LANDSCAPE STANDARDS nQPage 4 TREE REMC3VAI, AND TRANSPLANTING by OSHA regulations, the County, or the property owner, for the protection of the public and workers. The Contractor shall be in full accordance with all applicable laws, codes, and regulations. 2. The contractor shall incur all expenses to repair or replace any damage to existing improvements, such as buildings, equipment, irrigation systems, piping, sewers, sidewalks, or landscaping, caused during tree removal. Repairs and replacements must be done in a manner and to a quality level satisfactory to the Owner and County within a reasonable timeframe as determined by the County. 1.04 Permits and Authorization A. The Contractor shall seek authorization from the County prior to performing any pruning or removal work to County managed trees. B. Heritage Trees shall not be pruned or removed without first securing a Heritage Tree Permit issued from the County Community Development Department in accordance with the County Heritage Tree Ordinance. PART 2 PRODUCTS AND MATERIALS None Specified. PART 3 TREE REMOVAL The Contractor shall consider the following when removing a tree: A. The Contractor shall obtain proper authorization and/or permits from the County prior to undertaking any tree removal work. B. The Contractor shall initiate the removal process when a hazardous condition exists due to an old, damaged, or diseased tree. C. In general, trees shall be replaced in-kind, however, the Contractor shall assess the need for removal and replant accordingly. For example, should conditions exists that would prevent the success of an in-bind replacement, a more appropriate species should be planted. The Contractor shall mare recommendations for alternative species and shall not make any planting changes prior to County approval. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 5 ` . TREE REMOVAL AND TRANSPLANTING TING 3. Depending on the size of the tree, its relationshipto adjacent trees, structures, or overhead lines, and the configuration of branches, the tree may need to be removed in segments. The method of tree removal shall be determined in consultation with the County. 4. Tree stumps shall be removed. In general planting areas, removal may be accomplished by grinding the tree stump to a depth of 18" below grade. Where a replacement tree is proposed in the same location or a structure or paving is proposed, the tree stump shall be excavated to a minimum depth of 3' or as indicated in the geotechnical report for the structure or paving. 5. The Contractor shall remove all debris from site. Disposal of all materials, especially that of diseased or infested trees, shall be clone in accordance with all applicable laws, codes, and regulations. 6. In the case of disease, the Contractor shall monitor tree disposal to ensure the disease is not spread. All tools in contact with diseased areas shall be sterilized to prevent further outbreaks. 7. The Contractor shall backfill tree stump pits with soil and fine grade the area to match the existing grade. 1 ART 4 TREE TRANSPLANTING The contractor shall consider the following when transplanting trees: A. Transplanting success depends on the plant species and its condition, characteristics of the original and transplanting sites, the season of the year, the transplanting method., and follow-up care and maintenance. B. It is the Contractor's responsibility to verify that areas designated as tree transplanting sites are adequately prepared to receive the trees. C. All trees that die or become damaged as a result of transplanting shall be replaced by the Contractor at the Contractor's expense. Replacements shall be new container plants of equivalent size and species as that of the dead or damaged tree. The replacements shall be installed within fourteen calendar days of the date on which the problem is discovered. The Contractor shall contact the County to make alternate arrangements should the Contractor not be able to meet this deadline. D. The Contractor shall avoid undertaking transplants during summer months, except -' under extraneous circumstances and as directed by the County. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 6 TREE REIVIO`'tJAL AND TRANSPLANTING 3.01 Selecting gees for Transplanting The following information shall be used by the Contractor in determining trees specimens suitable for transplanting. All final transplanting decisions shall be made in consultation with the County. A. The Contractor shall determine species and specimens suitablefor transplanting in consultation with the County. The following is generally recognized by the County; 1. Trees suitable for transplanting include, but are not limited to. a. Ash(Fraxinus sp.) b. Locust(Robinia sp.) c. Elm (Ulmus sp.) d. Hackberry(Celtis sp.) e. Sycamore, London plane (Plataus sp.) f Poplar(Populus sp.) g. Willow (Salix sp.) h. Coast live oak(Quercus agrifolia) i. Crabapple(Malus sp.) j. Maple(Acer sp., except A, rubrum)) k. Pear(Pyrus calleryana cvs.) 1. Olive (Mea europaea) in. Most palms (e.g. Washingtonia filifera,Phoenix canariensis) 2. Trees unsuitable for transplanting include,but are not limited to: a. Horsechestnut(Aesculus sp.) b. Walnut(Juglans sp.) c. Oaks (Quercus sp., except Q. agrifolia) d. California bay(Umbellularia californica) e. Magnolia(Magnolia sp.) f. Sweet gum (Liquidambar styraciflua) g. Tulip tree(Liriodendron tulipifera) h. Monterey pine(Pinus radiata) E. The Contractor shall ensure the tree size is appropriate for transplanting. Small plants transplant more successfully than large plants, and are significantly less expensive to dig and move. The larger the plant, the larger the root mass that must be dug. As a general guide, the root ball should be about 10" diameter for each inch of trunk diameter. An arborist specializing in transplanting mature trees shall be consulted. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Wage 7 TREE REMOVAL AND TRANSPLANTING C. Only healthy, structurally sound, and attractive plants that are suitable for the new environment shall be transplanted. The Contractor shall only transplant trees that meet the following criteria: 1. Generally symmetric with a well-formed crown. 2. Good foliage size, density, and color for the species. 3. lion-nal annual growth for species. 4. Central trunk with scaffold branches distributed radially and vertically around trunk. 5. Trunk and major branches free of wounds, decay, and cavities. 6. The plant is free of all significant diseases or pests that cannot be controlled (e.g. borers, bark beetles, psyllids, canker diseases, root rot, fire blight, etc.). D. The Contractor shall avoid transplanting trees exhibiting the following characteristics: 1. Plants with asymmetrical or unattractive crowns. 2. Plants with yellow, small, or sparse foliage for the species. 3. Leaning trees. 4. Plants with dead twigs or branches throughout the crown. 5. Trees with co-dominant (forked) trunks or with weak attachments of scaffold branches (V-shaped,crowded, etc.). 6. Trees girdled by staking ties or other constrictions. 7. Bark or scaffold branch injuries encompassing more than 25% of circumference. 8. Plants with conks or mushrooms on the trunk,branches, or around the root crown. CONTRA COSTA COUNTY LANDSCAPE STANDARDS [)RAF1Page 8 TREE REMOVAL AND TRANSPLANTING E. The Contractor shall assess the following site characteristics. 1. Conditions of present tree site. a. Site conditions that affect root development and access to the tree shall be considered. b. Slope generally shall not exceed 14%. If tree is on a slight slope, it shall be planted at the same slope on the new site. c. The site soil shall generally be at least 3' deep for trees to have developed a root system that can be adequately dug. Excessively rocky and shallow soils may not allow transplanting. d. Adequate clearance around individual plants to be dug and transported shall be provided to make room for large equipment required for transplanting. 2. Characteristics of the proposed site. a. The conditions at the new site shall be conducive to the species that are being transplanted. b. A plant requiring acidic soils shall not be transplanted into an alkaline or calcareous soil and vice-versa. c. A plant requiring good drainage shall not be transplanted into an area with poorly drained clay soil, or at the toe of a slope or in a swale in a frequently irrigated planting area. d. A tree grown in a sheltered or partially shaded location shall not be transplanted to an area with exposed, windy, or reflected heat conditions. E. Soil tests shall be performed to assess transplant site conditions. A site survey should evaluate soil depth, slope, aspect, rnicroclimate, and wind and sun exposure. G. Most transplanted trees have large root balls and canopies and therefore need more planting space. The planting site shall allow for the transplanted root ball plus plenty of room for growth. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 9 TREE REMOVAL AND TRANSPLANTING H. If the new planting site is on a slope, a level area at least the diameter of the root ball shall be created on the slope. A wall may be required at the back of the planting:area to retain the slope. I. Those contemplating transplanting a tree shall analyze the value of the tree and its ability to survive and perform well in the newly designated area, versus replacing the tree with younger container grown trees. 3.02 Mechanical"free Spade Method The mechanical tree spade method is most suitable for transplantinga few trees a short distance, where they can be placed directly in the ground. The following procedures shall be followed when transplanting by the mechanical tree spade method. A. Select the appropriate tree spade according to the size of the tree, B. Prepare the tree for transplanting by irrigating several days before the transplant date to ensure soil is moist but not saturated and prune as needed to provide adequate access for the spade. C. Prepare the transplanting site by clearing 10'-15' around each tree (depending on the spade size) and a 7'-13' wide access path. D. Protect any trees that are to remain on the site from inadvertent damage by transplanting operations. Place fencing, barricades, weight dispersing materials, etc. as needed. E. Prepare the planting site by digging a plant pit twice as wide as the root ball and 6" deeper than the height of the root ball to allow for any settling. The spade may be used to dig the hole. Rough up the sides of the hole with a shovel to disrupt any glazing. F. Determine transporting route and ensure there is adequate'clearance for safe passage past utility lines, overpasses, vegetation, and other possible obstructions. G. Only use sharp tree spade blades. H. Place the spade around the tree and insert each blade in sequence until all blades are fully inserted and completely surround the plant root ball. 1. Lift the tree out of the ground and tip the tree forward into a transporting position. CONTRA COSTA COUNTY LANDSCAPESTANDARDS Aq Page 10 TREE REMOVAL AND TRANSPLANTING J. Tie down and tarp the tree crown to protect it From excessive moisture loss. Transport to new location. Ensure protection of the root hall. It may also be necessary to wrap the root ball to prevent excess soil loss. K. Carefully transport the tree to the new site location. L. Protect the surrounding soil from compaction by placing plywood or 6" of wood chip mulch beneath the wheels of the equipment. M. Place the tree in the new plant pit. Ensure the trunk is straight and plumb. N. When the blades are extracted, force a slurry mixture of soil and water into the voids around the root ball. 0. Do not place site soil on top of the root ball. P. Do not apply vitamin BI or other"transplant shock"products. Q. Stake or guy the tree. Build a 6"berm to enclose the root ball. 77 R. Apply mulch to the soil surface within the berm and irrigate thoroughly. S. Establish and execute a post-transplanting maintenance program. Refer to 3.04, Maintenance of Transplanted Trees. 3.€73 Boxing Method A. Boxing shall be the preferred method of transplanting larger trees when they must be held for several months. B. Prepare the tree for transplanting by irrigating several days before the transplant date to ensure soil is moist but not saturated and prune as needed to provide digging access. C. Identify the location of the temporary nursery to hold the tree until it will be planted. D. Determine transporting route and ensure there is adequate clearance for safe passage past utility lines, overpasses,vegetation, and other possible obstructions. E. Determine if digging should be done in two phases by boxing the sides, waiting 90 days, and thea completing the boxing. F. Determine the size of box need for each tree to be transplanted. CONTRA COSTA COUNTY LANDSCAPE STANDARDS AF Page 11 TREE REMOVAL AND TRANSPLANTING U. Clear adequate space for digging and moving the tree. Heavy equipment may include a backhoe, crane, and flatbed truck. H. Protect any trees that are to remain on the site from inadvertent damage by transplanting operations. Place fencing, barricades, weight dispersing materials, etc. as needed. I. Excavate the soil from around the tree, cut woody roots cleanly with a saw, and treat any cut roots requiring attention. Shave and shape the soil to conform to sides of the box. Place the box sides around the root ball and secure. Undercut the tree and insert boards to form a bottom. Place two beams at right angles to the bottom boards and two beams across to top. Attach beams together with rods or heavy metal bands. Fill in any gaps between root ball and the box with soil from the removal site. J. Lift the tree out of the ground with a crane or other device and place it on a flatbed truck. K. Tie down and tarp the tree crown to protect it from excessive moisture loss. L. Carefully transport the tree to the temporary nursery or planting site. M. Provide irrigation as needed. N, Protect the surrounding soil from compaction by placing plywood or 6" of wood chip mulch beneath the wheels of the equipment. 0. Prepare the planting site by digging a plant pit twice as wide as the root ball and 6" deeper than the height of the root ball to allow for any settling. Rough up the sides of the hole with a shovel to disrupt any glazing. P. Place the tree in the new plant pit. Ensure the trunk is straight and plumb. Q. Remove the sides and bottom of the box. Backfill with site soil, tamping the soil to eliminate all air pockets. R. Do not place site soil over the top of the root ball. S. Do not apply vitamin Bi or other"transplant shock"products. T. Stake or guy the tree. Build a 6"berm to enclose the root ball. U. Apply mulch to the soil surface and irrigate thoroughly. f CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 12 TREE REMOVAL AND TRANSPLANTING V. Establish and execute a post-transplanting maintenance program. Refer to 3.04, Maintenance of Transplanted Trees. 3.04 Maintenance of Transplanted Trees A. The condition of transplanted trees must be closely monitored for two years following transplant. & Until roots develop into the surrounding soil, the tree is dependent on water contained in the root ball itself. Therefore,plants shall be irrigated before the root ball becomes dry, but not so frequently that it remains wet. A soil probe shall be used to check soil moisture and water shall be applied as needed. C. Trees shall be pruned following transplanting to remove any broken or damaged branches. Any torn bark or wood shall be cut off with a knife. Do not shape the wound or apply wound paint. Prune to improve the tree structure if necessary (refer to the TREE PRESERVATION AND PRUNING section). D. Fertilizer shall be applied if soil testing reveals a deficiency. Fall and late winter are the best times to apply fertilizer (refer to the LONG TERM MAINTENANCE section). E. Transplanted trees shall be monitored for pests and diseases at least monthly to assess any developing problems and determine appropriate treatments (refer to the DISEASE AND INSECT CONTROL section). E. Anchor stakes or guys shall be inspected every three months. The Contractor shall ensure that the plant is not being damaged by the hardware. F. Guys shall be removed after two years. G. At the beginning of the second year, the watering basin shall be enlarged by 50% and wood chip mulch shall be replenished in basin. H. The Contractor shall also refer to the LONG TERM MAINTENANCE section. END OF SECTION CONTRA COSTA COUNTY Noe LANDSCAPE STANDARDS &16Page 1 BALLFIFLD MAINTENANCE TABLE OF CONTENTS FART NAME PAGE PART1 GENERAL 2 1.41 Definition of Contractor 2 1.42 Scope of Work 2 1.43 duality Control 3 PART 2 PRODUCTS AND MATERIALS 4 2.41 Infield Mix 4 2.42 Turf Seed 4 PART 3 EXECUTION 4 3041 Weed Removal 4 3.42 Skinned Infield 4 3.43 Outfield 5 3.44 Backstops 6 3.05 Bleachers and Benches 6 3.46 General Maintenance and Clean-up 6 CONTRA COSTA COUNTY LANDSCAPESTANDARDS Page 2 ,3 DAM.ELD MAINTENANCE FART 1 GENERAL 1.01 Definition of Contractor The term Contractor is used in its broadest sense within this section. The Contractor may be a Developer/Contractor installing public improvements to be turned over to the County for maintenance, the County General Services Department, or maintenance Contractors hired on contract by the County. Responsibilities for each type of contractor are detailed herein. 1.02 Scope of"Work A. CONTRACTOR RESPONSIBILITY AND COSTS INCURRENCE 1. Developers/Contractors performing work prior to Final Acceptance of the improvements by the County shall perform all maintenance services, both routine and incidental, and incur all costs, at no charge to the County. 2. Work performed by the County General Services Department shall be charged to the appropriate work order number. Generally, separate work order numbers will be established for routine maintenance and incidental ' expenses. Reference shall be made to the inter-departmental contract for a listing of the appropriate work order number per given service area. 3. Maintenance Contractors hired on contract by the County shall bid on and provide all services designated as "routine maintenance" throughout this section. When bidding on a contract, the Contractor shall be responsible for identifying all services designated as routine maintenance. The County will allocate within the contract an additional dollar amount for County approved incidental expenses. All routine maintenance services shall be provided by the Contractor, at no additional expense to the County for the duration of the contract. B. ROUTINE MAINTENANCE SERVICES 1. The Contractor shall perform regular mowing, fertilization, repair and renovation functions to maintain ballfields in an acceptable condition. 2. The Contractor shall undertake irrigation system adjustments, time clock adjustments, aeration, reseeding, and weed control as needed. 3. The work shall include the provision of all labor, materials, equipment and apparatus not specifically mentioned herein or noted on the plans, but which are incidental and necessary to complete the work specified. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 3 =x MkPI&ELI) -MAINTENANCE C. INCIDENTAL MAINTENANCE SERVICES All incidental maintenance services must be approved by the County prior to the Maintenance Contractor or General Services performing the work. Developers/Contractors performing work prior to final acceptance of the improvements by the County shall notify the County in writing of the services performed. After approval by the County the Contractor shall perform the following incidental maintenance services: 1. Irrigation system repairs, unless damage was a result of the Contractor's actions. Reference shall be made to other maintenance sections and the IRRIGATION section when performing repairs. 2. Resodding in highly damaged areas, where reseeding is inadequate. If the damage is a result of the Contractor's actions or Contractor neglect, then repairs shall be made to the satisfaction of the County, at the Contractor's expense, with no charge to the County. Repairs shall be made in accordance to the TURF MAINTENANCE AND RENOVATION section, and any other applicable sections. D. EXCLUDED SERVICES Some of the maintenance services specified herein may be excluded and performed by others. Excluded services will be specifically detailed within the maintenance contract. It is the responsibility of the Contractor to refer to the maintenance contract to identify any excluded services. Should the Contractor fail to perform a service that was not specifically excluded in the maintenance contract, the Contractor shall correct any resulting damage or problems to the satisfaction of the County and at the Contractor's expense, with no charge to the County. E. RELATED WORK Related work specified elsewhere; 1. Long Term Maintenance 2. Turf Maintenance and Renovation 3. Refer to the DISEASE AND INSECT CONTROL section 4. Refer to other sections as needed 1.03 Quality Control The Contractor shall periodically inspect the condition of all ballfield areas in order to identify the overall condition and any needed repairs. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 4 B LLFIEL:D MAINTENANCE PARI' 2 PRODUCTS AND MATERIALS 2.01 Infield Mix A. Infield Fines Mix and Infield Clay Mix: Infield mixes shall be free of rocks, debris, vegetation, and foreign materials with 100% passing of 9 mm screen and 85% passing of 6 mm screen. Infield mixes shall be sterilized to eliminate the possibility of any growth of vegetation. The composition of the mixes shall be as follows: 1. Infield fines mix: 70% 1/8"volcanic cinders 20% Wilder clay(ground) 10%Manteca clay loam 2. Infield clay mix: 50%Wilder Clay 50%Manteca clay loam 2.02 Turf Seed Turf shall be a material consisting of a mixture of stabilizing emulsion, fiber, seed, commercial fertilizer, binder and water. All seed/sod shall be certified and guaranteed as to purity and germination. The seed mix and sod mix is called "Penn Blue Sports Field Mix" and is available through Pacific Sod (707) 484-4116 and other distributors. It shall consist of a mixture of 80% Rye grass and 20% Blue grass. All other sods shall be approved by the County prior to installation. PART 3 EXECUTION 3.01 Weed Removal The Contractor shall perform weed removal as part of routine maintenance service. A. Weeding may be done manually or by the use of selective weed killers. Extreme caution shall be observed if selective weed killers are used to ensure ether plant materials are not damaged. Spraying shall be done only at times when there is no wind. B. The Contractor shall submit copies of all spray reports to the County at the end of each month. 3.02 Shinned Infield The skinned ballfield area shall be generally maintained as follows, as part of routine maintenance service: q k CONTRA COSTA COUNTY �.. LANDSCAPE STANDARDSPage 5 ___]Q EALLFIELD MAINTENANCE A. Weed Removal and Perimeter Trimming: 1. Softball infield surface area shall be Dept free of weeds. 2. Perimeter abutting the grass shall be twice annually marked, trimmed with a sod cutter, and flush grade restored in order to eliminate lawn encroachment problems. B. Periodic Regrading: 1. During the period of March through August (6 months), the softball surface shall be regraded and smoothed, removing high spots and larger depressions resulting from extensive use during this time. This procedure should be followed at least once each month. 2. Fill any depressions or skinned areas with infield mix and compact soft areas by rolling and tamping. 3. Remove build up of infield mix and lawn cuttings along turf and infield edge. 1 C. Base Paths 1. The Contractor shall edge base paths to keep grass from encroaching into defined areas as required. 2. The Contractor shall grade area so there is no "rutted," or "dished" appearance as necessary. 3. The Contractor shall fill depression with infield mix as necessary. D. Infield Preparation Bases, striping, and dragging of the softball infield shall be the responsibility of the user groups and is not generally within the scope of a maintenance contract, unless specifically included. 3.03 Outfield The outfield area shall be maintained as follows, as park of routine maintenance service: A. The Contractor shall keep outfield properly mowed to a height of 2 inches (5 cm). a 'r CONTRA COSTA COUNTY LANDSCAPE STANDARDSKir I Page 6 BALLFIELDVIAINTENANCE B. The Contractor shall top dress with topsoil and overseed depressions as required. Repair any"'divots" in turf areas immediately. C. Large areas in need of repair, or excessively large "divots" may be considered an incidental maintenance service by the County. If the damage is the result of the Contractor's actions or Contractor neglect, repairs shall be trade to the satisfaction of the County, at the Contractor's expense. 3.04 Backstops A. The Contractor shall routinely inspect the backstop and ensure the area is free of holes, structurally sound, and free of any hazards. B. Repairs to the backstop shall be considered an incidental maintenance service. 3.45 Bleachers and Benches A. ROUTINE MAINTENANCE SERVICES I. The Contractor shall visually inspect the bleacher and bench areas and immediately report any problems to the County. 2. The Contractor shall sand/rasp all wooden surfaces to remove any minor graffiti/marks or areas that may sliver or splinter. 3. The Contractor shall adjust, tighten and replace all nuts, bolts, screws, couplings, etc, as necessary. B. INCIDENTAL MAINTENANCE SERVICES 1. The Contractor shall replace broken wooden boards or components. 2. The Contractor shall remove and clean all incidents of graffiti and repair vandalized items. 1 The Contractor shall paint areas as necessary using a color-thatched paint. 3.06 General Maintenance and dean-up The Contractor shall perform.the following as part of routine maintenance service. A. Litter shall not be allowed to lie on the site and shall be removed twice a week. CONTRA. COSTA COUNTY LANDSCAPE STANDARDS OW Wage 7 BALL LD V1AINTENANCE & All clippings, trimmings, cuttings, rubbish, trash, and debris shall promptly be removed from site and legally disposed of at the Contractor's expense. C. Sidewalks and paved areas shall be swept and cleaned of any dirt or soil that might be washed from adjacent slopes or planted areas as required. D. The Contractor shall inspect fields weekly for damaged irrigation system:, rodent or pest damage, vandalism, or other conditions that impact field conditions and notify the County immediately of any problems. END OF SECTION SUBJECT: APPROVE and AUTHORIZE the Chair, Board of Supervisors to execute a contract with Freitas Landscape Maintenance in the amount of $45,216.00 to provide landscape and grounds maintenance for the MonTaraBay Community Center/Ballfield and Montalvin Park, for the period October 1, 2002 through September 30, 2004, San Pablo area. (District I) Project No. 74896X5185 DATE: October 22, 2002 WAGE 2 fii. Reasons for Recommendations and Background: Freitas Landscaping provides landscape and grounds maintenance services in County Service Area M- 17. These services include maintenance of MonTaraBay Community Center grounds and ballfield complex (3.5 acres) and Montalvin Park(7 acres). IV. Consequences of Neeative Action: Landscape and grounds maintenance cannot be implemented for the MonTaraBay Community Center grounds and Montalvin Park without a contract for these services. Contra Costa County Number: Standard Form 1/87 STANDARD CONTRACT Fund/Org#: 7489 (Purchase of Services) .Account#: 2282 Other#: SAS X5185 1. Contract Identification. Department: Public Works Department Subject: Landscape/Grounds Maintenance for County Service Area M-17 (MonTaraBay Community Center and Ballfield and Montalvin Park). 2. Parties. The County of Contra Costa, California (County), for its Department named above, and the following named Contractor mutually agree and promise as follows: Contractor: Freitas Landscape Maintenance Capacity: Grounds Maintenance Contractor Taxpayer ID# 572-89-4890 Address: PO Box 226 Pinole,CA 94564 Telephone. (51.0)724-7240 3. Term. The effective date of this Contract is October 1,2002; it terminates September 30, 2004,unless sooner tertninated as provided herein. 4. Payment Limit. County's total payments to Contractor under this Contract shall not exceed $45,216.00 ($1,259.00 per month,plus a total allowance not to exceed$15,000.00 for incidental expenses as approved by the Department). 5, County's Obligations. County shall make to the Contractor those payments described in the Payment Provisions attached hereto which are incorporated herein by reference, subject to all the terms and conditions contained or incorporated herein. 6. Contractor's Obligations. Contractor shall provide those services and carry out that work described in the Contra Costa County Public Works Department Landscape Standards attached hereto which is incorporated herein by reference, subject to all the terms and conditions contained or incorporated herein. 7. General and Special Conditions. This Contract is subject to the General Conditions and Special Conditions(if any)attached hereto,which are incorporated herein by reference. �. Project. This Contract implements in whole or in part the following described Project,the application and approval documents of which are incorporated herein by reference: Grounds maintenance for County Service Area M-17 (MonTaraBay Community Center and Ballfleld and Montalvin Park) in full accordance with the terms and conditions specified in the Contra Costa County Public Works Department Landscape Standards MAINTENANCE sections, which includes the Long Terra Maintenance, Turf Maintenance and Renovation, Tree Preservation and Pruning, Disease and Insect Control, Tree Removal and Transplanting, and Ballfield Maintenance sections for those areas indicated in the Description and Acknowledgement&Bid sheets. 9. Legal Authority. This Contract is entered into under and subject to the following legal authorities: 1o. Signatures. These signatures attest the parties`agreement hereto: COUNTY OF CONTRA COSTA,CALIFORNIA BOARD OF SUPERVISORS ATTEST: John Sweeten,Clerk of the Board of Supervisors and County Administrator By By Chairperson/, epartment Designee Deputy CONTRACTOR By. s 9 yn .t/i .y By Ay'-"�^w.s` f,t{.•�.�-`�� ._- of (Designate business capacity B) 'Vote to Contractor:For Corporations(profit or nonprofit),the contract must be signed by two officers. Signature A mast be that of the president or vice-president and Signature B must be that of the secretary or assistant secretary(Civil Code Section 1190 and Corpora dons Code Section 313). All signatures must be acknowledged asset forth on page two. G:\GrpData\SpDist\Co�itracts\Freitas 2001 Cont actTreitas Standard Form Contract 2002-04.doc September 26,2002 CALIFORNIA ALL-PURPOSE ACKNOWLEDGMENT Srl4 State of California ss, Gounly of ail 3^ } tx C� S- � � y v8i Sfe f?P, es ti<F #�t 1#m e aids�� � �. Date Name and Title of O!,.,(e.g., "Jane doe,Nofia"1 Public") personally appeared r= cit v Nams(s)of Signers) �" ❑persona::y known to me F L�,proved to me on the basis of satisfactory evidenced r< to be t^:e person ) whose name is/are subscribed to the within instrurrient and acvnowledged to me that he/s ey executed `r e same in h s/h "eir authorized IS capacity(i ), and t^at by his%.e; signature(zT on the instrument the person(o, or tiUthe entity upon behalf of which the persoro) Cir t acted e :ted the instrument. f' f ccm� il4ITv �S my ha is anjofffstal seal. 24 r. - t - - `aijj ktu of Notary Public b M OPTIONAL Though the information below is not required by raw,it may rove valuable to persons relying on the document and couldpre-vent � fraudulent removal and reattachment of this form to another document {. Description of Attached Document Title or Type of Document: Docurnent Date: t/3 i.:'A", number of Pages: Signer(s)Other Than Named Above: Capacity(les) Claimed by Signer Signer's Name: i 01 NO i ❑ „?div)dua Top of thumb here ❑ Corporate Cifficer—Title(s): i ❑ Partner—❑ Limited ❑Generai ❑ Attorney-in-Fact s ❑ Trustee j < ❑ Guardian or Conservator Other: Signer Is Repressnti,:g: ? T)1999 Nationai Notary Association>9350 3e Soto Ave.,P.O.?ox 2402^Chatsworth,CA 91$13-2402•www.nationa;noiary.org prod.No.5907 Reorder:Call Toll-Free 1-800-976-6927 Contra Costa County Standard Form 6/90 PAY:MENT ROVISIONS Number: (Fee Basis Contracts) 1. went. Amounts. Subject to the Payment Limit of this Contract and subject to the following Payment Provisions, County will pay Contractor the following fee as full compensation for all services, work, expenses or costs provided or incurred by Contractor: [Check one alternative only.] Ea. $1 259.00 monthly,plus a total allowance not to exceed$15,000.00 for approved incidental expenses Elb. $ per unit,as defined in the Service Plan,or ®c. $ after completion of all obligations and conditions herein. 2. Payment Remands. Contractor shall submit written demands. Said demands shall be made on County Demand Form D-15 and in the manner and form prescribed by County. Contractor shall submit said demands fiar payment no later than 30 days from the end of the month in which the contract services upon which such demand is based were actually rendered. Upon approval of said payment demands by the head of the County Department for which this Contract is made,or his designee,County will make payments as specified in Paragraph 1.(Payment Arnounts)above. 3. I!enally for Late Sub ission. When Contractor fails to submit to County a timely demand for payment as specified in Paragraph 2. (Payment Demands) above, and as a result of Contractor's late submission the County is unable to obtain reimbursement from the State of California or otherwise; to the extent the County's recovery of funding is prejudiced, County shall not pay Contractor for such services,even though such services were fully provided. 4. Right Ai hhold, County has the right to withhold payment to the Contractor when, in the opinion of the County expressed in writing to the Contractor, (a)the Contractor's performance, in whole or in part, either has not been carried out or is insufficiently documented, (b) the Contractor has neglected, failed or refused to furnish information or to cooperate with any inspection,review or audit of its program,work or records,or(c)Contractor has failed to sufficiently itemize or document its demand(s)for payment. 5. Audit epptions. Contractor agrees to accept responsibility for receiving, replying to, and/or complying with any audit exceptions by appropriate County, State or Federal audit agencies occurring as a result of its performance of this Contract. Contractor also agrees to pay to the County within 30 days of demand by County the full amount of the County's obligation, if any. to the State and/or Federal government resulting from any audit exceptions, to the extent such are attributable to the Contractor's failure to perform properly any of its obligations under this Contract. 6. Required Audit. If Contractor is funded by$25,000 or more in federal grant funds in any fiscal year from any source, Contractor shall provide to County at Contractor's expense an audit conforming to the requirements set forth in the most current version of Office of Management and Budget Circular A-133. If Contractor is funded by$25,000 to$100,000 in federal grant funds in any fiscal year from any source, Contractor shall arrange for conduct of the federally-required audit biennially and shall submit the audit to County in the time,form,and manner required by the most current version of Office of Management and Budget Circular A-133 and by County. If Contractor is funded by$100,000 or more in federal grant funds in any fiscal year from any source,Contractor shall arrange for the audit to County in the time,form., and manner required by the most current version of Office of Management and Budget Circular A-133 and by County. Contractor is solely responsible for arranging for the conduct of the audit,and for its cost,and County may withhold the estimated cost of the audit or 10 percent of the contract amount, whichever is larger, or the final payment, from Contractor until County receives the audit from Contractor. END OF SECTION E ,mss--. s I Initials: �. dun#y Cd tractor G:\GtpDaa\SpDist\Contracts\Preitas 2001 ContractTreitas Contract 2002 Paymept provisions.doc September 26,2002 °�� Contra Costa County Standard Form 1187 9E-MB-AL COMI-TIONS (Purchase of Services) L Comniian,e wit Law. Contractor shall be subject to and comply with all Federal, Mate and local laws and regulations applicable with respect to its performance under this contract,including but not limited to,licensing, employment and purchasing practices, and wages, hours and conditions of employment, including nondiscrimination. 2. Instrection. Contractor's performance, place of business and records pertaining to this Contract are subject to monitoring,inspection,review and audit by authorized representatives of the County,the State of California,and the United States Government. 3. Records. Contractor shall peep and make available for inspection and copying by authorized representatives of the County,the State of California, and the United States Government,the Contractor's regular business records and such additional records pertaining to this Contract as may be required by the County. a. Retention of Records_. The Contractor shall retain all documents pertaining to this Contract for five years from the date of submission of Contractor's final payment demand or final Cost Report; for any further period that is required by law; and until all Federal/State audits are complete and exceptions resolved for this contract's funding period. Upon request,Contractor shall make these records available to authorized representatives of the County,the State of California,and the United States Government. b. Access to Books and Records of Contractor,Subcontractor, Pursuant to Section 1861(v)(1)of the Social Security Act,and any regulations promulgated thereunder,Contractor shall,upon written request and until the expiration of four years after the furnishing of services pursuant to this Contract, make available to the Secretary of Health and Human Services or to the Comptroller General,or any of their duly authorized representatives,this Contract and books,documents,and records of Contractor that are necessary to certify the nature and extent of all costs and charges hereunder. Further,if Contractor carries out any of the duties of this Contract through a subcontract with a value or cost of 10,000 or more over a twelve-month period, such subcontract shall contain a clause to the effect that upon written request and until the expiration of four years after the furnishing of services pursuant to such subcontract, the subcontractor shall make available,to the County,to the Secretary or to the Comptroller General,or any of their duly authorized representatives, the subcontract and books,documents,and records of the subcontractor that are necessary to verify the nature and extent of all costs and charges thereunder. This special condition is in addition to any and all other terms regarding the maintenance or retention of records under this Contract and is binding on the heirs,successors, assigns and representatives of Contractor. 4, Renortina Rectuirements. Pursuant to Government Code Section 7550, Contractor shall include in all documents or written reports completed and submitted to County in accordance with this Contract, a separate section listing the numbers and dollar amounts of all contracts and subcontracts relating to the preparation of each suchd�yocument or-written report. This section shall apply only if the payment limit under this Contract exceeds $5,000< 5, Termination. a. Written Notice. This Contract maybe terminated by either party,at their sole discretion,upon thirty- day advance written notice thereof to the other, and may be canceled immediately by written mutual consent. b. Failure to Perfo m+ The County,upon written notice to Contractor,may immediately terminate this _l_ Contra Custa,'County Standard Form 1187 QL�ML CONDIU NS (Purchase of Services) Contract should the Contractor fail to perform properly any of its obligations hereunder. In the event of such termination,the County may proceed with the work in any reasonable manner it chooses. The cost to the County of completing Contractor's performance shall be deducted from any sura due the Contractor under this Contract, without prejudice to the County's rights otherwise to recover its damages, c. Cessation of Funding. Notwithstanding Paragraph 5.a.above,in the event that Federal,State,or other non-County funding for this Contract ceases,this Contract is terminated without notice. 6. Er►tfr,�a Alteement. This Contract contains all the terms and conditions agreed upon by the parties, Except as expressly provided herein, no other understanding, oral or otherwise, regarding the subject matter of this Contract shall be deemed to exist or to bind any of the parties hereto. 7. Further Specifieations for 01)erating Procedures. Detailed specifications of operating procedures and budgets required by this Contract, including but not limited to, monitoring, evaluating, auditing, billing, or regulatory changes,may be developed and set forth in a written Informal Agreement between the Contractor and the County. Such Informal Agreements shall be designated as such and shall not be amendments to this Contract except to the extent that they further detail or clarify that which is already required hereunder. Such Informal Agreements may not enlarge in any manner the scope of this Contract,includingany suras of money to be paid the Contractor as provided herein. Informal Agreements may be approved and signed by the head of the County .Department.for which this Contract is made or his designee, 8. Modifications and Amendments. a. General Am+endmen#s. This Contract maybe modified or amended by a written document executed by the Contractor and the Contra Costa County Board of Supervisors or, after Board approval, by its designee,subject to any required State or Federal approval. b, Administrative Amendments. Subject to the Payment Limit,the Payment Provisions and the Service Plan may be amended by a written administrative amendment executed by the Contractor and the County Administrator or his designee,subject to any required State or Federal approval,provided that such administrative amendments may not materially change the Payment Provisions or the Service Plan. 9. Disputes. Disagreements between the County and Contractor concerning the meaning, requirements, or performance of this Contract shall be subject to final determination in writing by the head of the County Department for which this Contract is made or his designee or in accordance with the applicable procedures of any)required by the State or Federal Government. 10. Choice of Law and Personal Jurisdiction. a. This Contract is trade in Contra Costa County and shalt be governed and construed in accordance with the laws of the State of California. b. Any action relating to this Contract shall be instituted and prosecuted in the courts of Contra Costa County, State of California. 11. Confarman e w-U Federal and State Re ulattons and Laws. Should Federal'or State regulations or laves touching upon the subject of this Contract be adopted or revised during the term hereof,this Contract shall he deemed amended to assure conformance with such Federal or State requirements.' Contra Carta County Standard Farm 1187 GE- n—RAL CMITIONS (Purchase of Services) 12, No Waiver by County. Subject to Paragraph 9. ('Disputes) of these General Conditions, inspections or approvals,or statements by any officer,agent or employee of the County indicating the Contractor's performance or any part thereof complies with the requirements of this Contract, or acceptance of the whole or any part of said performance, or payments therefore, or any combination of these acts, shall hot relieve the Contractor's obligation to fulfill this Contract as prescribed;nor shall the County be thereby stripped from bringing any action for damages or enforcement arising from any failure to comply with any of the terms and conditions of this Contract. 13. Subcontract and Assignment. This Contract binds the heirs, successors, assigns and representatives of Contractor. The Contractor shall not enter into subcontracts for any work contemplated under this Contract and shall not assign this Contract or monies due or to become due,without the prior written consent of the County Administrator or his designee,subject to any required State or Federal approval, 14. Independent Contractor Status. This Contract is by and between two independent contractors and is not intended to and shall not be construed to create the relationship between the parties of agent,servant,employee, partnership,joint venture or association. 15. Conflicts of Interest. Contractor, its officers, partners, associates, agents, and employees, shall not make, participate in making,or in any way attempt.to use the position afforded them by this Contract to influence any governmental decision in which he or she knows or has reason to know that he or she has a financial interest under California Government Code Sections 87100, et seq., or otherwise. 15. Confidentlallty. Contractor agrees to comply and to require its officers, partners, associates, agents and employees to comply with all applicable State or Federal statutes or regulations respecting confidentiality, including but not limited to,the identity of persons served under this Contract,their records,or services provided theta, and assures that: a. All applications and records concerning any individual made or kept by Contractor or any public officer or agency in connection with the administration of or relating to services provided under this Contract will be confidential,and will not be open to examination for any purpose not directly connected with the administration of such service. b> No person will publish or disclose or permit or cause to be published or disclosed,any list of persons receiving services,except as may be required in the administration of such service. Contractor agrees to inform all employees, agents and partners of the above provisions,and that any person knowingly and intentionally disclosing such information other than as authorized by law may be guilty of a misdemeanor. 17. NondiserUn4natory Services. Contractor agrees that all goods and services under this Contract shall be available to all qualified persons regardless of age, sex, race, religion, color, national origin, or ethnic background, or handicap,and that none shall be used,in whole or in part,for religious worship or instruction. 18. Indemnification. The Contractor shall defend,indemnify,save,and hold harmless the County and its officers and employees from any and all claims, costs and liability for any damages, sickness, death, or injury to person(s)or property,including without limitation all consequential damages,from any cause whatsoever arising directly or indirectly from or connected with the operations or services of the Contractor or its agents,servants, employees or subcontractors hereunder,save and except claims or litigation arising through the sole negligence or sole willful misconduct of the County or its officers or employees. Contractor will reimburse the County for -3- Contra Costa County Standard Form 1.187 G!��,CONDI'TIO S (Purchase of Services) any expenditures,including reasonable attorneys'fees,the County may make by reason of the matters that are the subject of this indemnification,and if requested by the County will defend any claims or litigation to which this indemnification provision applies at the sole cost and expense of the Contractor. 19. LgWomc During the entire term of this Contract and any extension or modification thereof,the Contractor shall keep in effect insurance policies meeting the following insurance requirements unless otherwise expressed in the Special Conditions: a. Liability Insurance. The Contractor shall provide comprehensive liability insurance, including coverage for owned and non-owned automobiles,with a minimum combined single limit coverage of 1,000,000 for all damages,including consequential damages,due to bodily injury,sickness or disease, or death to any person or damage to or destruction of property,including the loss of use thereof,arising from each occurrence, Such insurance shall be endorsed to include the County and its officers and employees as additional insureds as to all services performed by Contractor under this agreement. Said policies shall constitute primary insurance as to the County,the State and Federal Governments, and their officers, agents, and employees, so that other insurance policies held by them or their self— insurance elfinsurance program(s) shall not be required to contribute to any loss covered udder the Contractor's insurance policy or policies. b. 'Workers'Compensation. The Contractor shall provide workers'compensation insurance coverage for its employees, c. Certificate of Insurance. The Contractor shall provide the County with(a)certificate(s)of insurance evidencing liability and worker's compensation insurance as required herein no later than the effective date of this Contract. If the Contractor should renew the insurance policy(ies)or acquire either a new insurance policy(ies)or amend the coverage afforded through an endorsement to the policy at any time during the term of this Contract,then Contractor shall provide(a)current certificate(s)of insurance. d. Additional Insurance Provisions. The insurance policies provided by the Contractor shall include a provision for thirty(30)days written notice to County before cancellation or material changes of the above specified coverage. 20. Notices. All notices provided for by this Contract shall be in writing and may be delivered by deposit in the United States mail, postage prepaid. Notices to the County shall be addressed to the head of the County Department for which this Contract is trade. ?Notices to the Contractor shall be addressed to the Contractor's address designated herein. The effective date of notice shall be the date of deposit in the trails or of other delivery, except that the effective date of notice to the County shall be the date of receipt by the head of the County Department for which this Contract is made. 21. Primacy of General Conditions. Except for Special Conditions which expressly supersede General Conditions,the Special Conditions(if any)and Service Plan do not limit any term of the General Conditions. 22. Non-renewal. Contractor understands and agrees that there is no representation,implication,or understanding that the services provided by Contractor under this Contract will be purchased by County under a new contract following expiration of termination of this Contract, and waives all rights or claims to notice or hearing respecting any failure to continue purchase of all or any such services from Contractor. 23. Possessory Interest. If this Contract results in the Contractor having possession of, claim to or right to the possession of land or improvements, but does not vest ownership of the land or improvements in the same -4- Contra Costa County Standard Form 1/87 C%,RAL C`'(3NRL''1 ONS (Purchase of Services) person, or if this Contract results in the placement of taxable improvements on tax exempt land(Revenue & Taxation Code Section 107), such interest or improvements may represent a possessory interest subject to property tax,and Contractor may be subj ect to the payment of property taxes levied on such interest. Contractor agrees that this provision complies with the notice requirements of Revenue&'Taxation Code Section 107.6,and waives all rights to further notice or to damages under that or any comparable statute. 24. No 'l<`hird-Party Beneficiaries. Notwithstanding mutual recognition that services under this Contract may provide some aid or assistance to members of the County's population,it is not the intention of either the County or Contractor that such individuals occupy the position of intended third-party beneficiaries of the obligations assumed by either party to this Contract. 25. Copyrights and Rights In DaLa. Contractor shall not publish or transfer any materials produced or resulting from activities supported by this agreement without the express written consent of the County Administrator. If any material is subject to copyright,the County reserves the right to copyright such and the Contractor agrees not to copyright such material. If the material is copyrighted,the County reserves a royalty-free,nonexclusive,and irrevocable license to reproduce,publish,and use such materials,in whole or in part,and to authorize others to do so. 26o Required Audit. If Contractor is funded by$25,000 or more in federal grant funds in any fiscal year from any source,Contractor shall provide to County at Contractor's expense an audit conforming to the requirements set forth in the most current version of office of Management and Budget Circular A-133. If Contractor is funded by$25,000 to$100,000 in federal grant funds in any fiscal year from any source,Contractor shall arrange for conduct of the federally-required audit biennially and shall submit the audit to County in the time,form, and manner required by the most current version of Office of Management and Budget Circular A-133 and by County. If Contractor is funded by$100,000 or more in federal grant funds in any fiscal year from any source, Contractor shall arrange for conduct of the federally-required audit annually and shall submit the audit to County in the time,form,and manner required by the most current version of office of Management and Budget Circular A-133 and by County. Contractor is solely responsible for arranging for the conduct of the audit,and for its cost, and County may withhold the estimated cost of the audit or 10 percent of the contract amount, whichever is larger,or the final payment, from Contractor until County receives the audit from Contractor. 27. Endorsements. Contractor shall not in its capacity as a contractor with Contra Costa County publicly endorse or oppose the use of any particular brand name or commercial product without the prior approval of the Board of Supervisors. In its County contractor capacity, Contractor shall not publicly attribute qualities or lacy of qualities to a particular brand name or commercial product in the absence of a well-established and widely- accepted scientific basis for such claims or without the prior approval of the Board of Supervisors. In its County contractor capacity, Contractor shall not participate or appear in any commercially-produced advertisements designed to promote a particular brand name or commercial product,even if Contractor is not publicly endorsing a product, as long as the Contractor's presence in the advertisement can reasonably be interpreted as an endorsement of the product by or on behalf of Contra Costa County. Notwithstanding the foregoing,Contractor may express its views on products to other contractors,the Board of Supervisors,County officers,or others who may be authorized by the Board of Supervisors or by law to receive such views. END OF SECTION -5- CONTRA COSTA COUNTY LANDSCAPE STANDARDS A.S Page I LUNG TERM MAINTENANCE TABLE OF CONTENTS PART NAME PAG. PART GENERAL 2 1.01 Definition of Contractor 2 1.02 scope of Work 2 1.03 Quality Control 4 1.04 submittals and Inspections 4 PART 2 PRODUCTS AND MATERIALS 5 2.01 Fertilizer 5 2.02 Herbicides, Insecticides, Pesticides, and Fungicides 5 2.03 Plant Stakes and Ties 5 2.04 Replacement Plants and Groundcovers 5 2.05 Utilities 6 PART 3 EXECUTION 6 3.01 general Maintenance and Cleanup 6 3.02 Shrub Maintenance 8 3.03 Groundcover and Perennial Maintenance 9 3.04 Tree Maintenance 10 3.05 Turf Maintenance 10 3.06 Grading Maintenance 10 3.07 Irrigation System Maintenance 11 CONTRA COSTA COUNTY LANDSCAPE STANDARDSE) owl Page 2 R Ar LONG TERM MAINTENANCE PART1 GENERAL 1.01 Definition of Contractor The terra Contractor is used in its broadest sense within this section. The Contractor may be a Developer/Contractor installing public improvements to be turned over to the County for maintenance, the County General Services Department, or maintenance Contractors hired on contract by the County. Responsibilities for each type of contractor are detailed herein. 1.02 Scope of Work A. CONTRACTOR RESPONSIBILITY AND COSTS INCURRENCE I. Developers/Contractors performing work prior to Final Acceptance of the improvements by the County shall perform all maintenance services, both routine and incidental, and incur all costs, at no charge to the County. 2. Work performed by the County General Services Department shall be charged to the appropriate work order number. Generally, separate work order numbers will be established for routine maintenance and incidental expenses. Reference shall be made to the inter-departmental contract for a listing of the appropriate work order number per given service area. 3. Maintenance Contractors hired on contract by the County shall bid on and provide all services designated as "routine maintenance" throughout this section. When bidding on a contract, the Contractor shall be responsible for identifying all services designated as routine maintenance. The County will allocate within the contract an additional dollar amount for County approved incidental expenses. All routine maintenance services shall be provided by the Contractor, at no additional expense to the County for the duration of the contract. B. ROUTINE MAINTENANCE SERVICES 1. The Contractor shall provide all materials, equipment, and labor necessary to complete all landscape maintenance work described in the maintenance contract. 2. The Contractor shall maintain trees, shrubs, groundcover, and/or turf in a healthful, vigorous condition through proper and routine watering, pruning, fertilization, and care. CONTRA COSTA COUNTY LANDSCAPE STANDARDSAF1 Page 3 LONG TERM MAINTENANCE 4� 3. The Contractor shall promote proper establishment of trees, shrubs, groundcover, and turf through regular maintenance which may include correcting drainage or settlement problems, protecting root systems, weeding, straightening trees, pruning for safe traffic sight distance, and adjusting plant stakes and ties. 4. The Contractor shall analyze plant problems and apply correct types and rates of fertilizers, insecticides, fungicides, and herbicides. S. The Contractor shall maintain a report or log of the function of the automatic irrigation system and associated backflow prevention unit and other assemblies and correct any nonfunctioning feature and ensure efficient operation. 6. The Contractor shall perform routine general maintenance and cleanup of the landscaped, open space, and/or park areas, including litter and trash removal and weed abatement. 7. The Contractor shall replace and re-establish any tree, shrub, groundcover plant, and/or turf area which is found to be in an unhealthful or dying condition during the warranty period, or resulting from Contractor neglect. 8. Repairs and replacements shall be done in full accordance with these Landscape Standards. The Contractor shall reference other appropriate sections for such repairs and replacements (i.e. refer to the IRRIGATION section for guidelines on replacing sprinkler heads, or the PLANTING section for guidelines on planting new plant materials). C. INCIDENTAL MAINTENANCE SERVICES All incidental maintenance services must be approved by the County prior to the Maintenance Contractor or General Services performing the work. Developers/Contractors performing work prior to final acceptance of the improvements by the County shall notify the County in writing of the services performed. After approval by the County the Contractor shall perform the following incidental maintenance services. 1. The Contractor shall provide professional pest control as outlined herein, including vector and rodent control and integrated pest management. 1 The Contractor shall repair any damage resulting from vandalism, graffiti, or natural cause. CONTRA COSTA COUNT' LANDSCAPE STANDARDS Mage 4 We — LONG TERM ?MAINTENANCE 3. The Contractor shall replace and re-establish any tree,'shrub, groundcover plant, and/or turf area which is found to be in an unhealthful or dying condition, or which has been stolen or vandalized. 4. Other non-routine maintenance services as needed and approved by the County. 1.03 Quality Control A. All plant materials shall be maintained in a healthy, vigorous growing, and pest free condition. B. All work shall be performed by experienced gardeners directly employed and supervised by the Contractor. The Contractor shall provide management and technical supervision through competent supervisors as required to implement modern methods and newly developed horticultural procedures. C. The Contractor shall be responsible for the skills, methods, and actions of Contractor's employees and for all work done. D. All pest control spraying (insecticides, fungicides, and herbicides) shall be recommended in writing by a State Registered Pest Control Advisor and applied by a Registered Pest Control Operator in accordance with Federal, State, and Local Regulations. A copy of a Pesticide Use Report must be provided to the County each month. E. The Contractor must have the ability to orally respond to emergency calls within thirty(30) minutes and physical site response within two (2) hours after receiving notification of a problem. 1.04 Submittals and Inspections A. The County shall conduct an inspection on at least a quarterly basis and meet with the Contractor to evaluate the Contractor's maintenance services. During such inspections, the County may review the Contractor's past billings for compliance with the contract and the County may also inspect any additional work or repairs performed by the Contractor that are not included in the maintenance contract. B. The Contractor shall furnish to the County, within 15 calendar days after award of the contract, a work schedule showing the proposed dates and times for the maintenance work to be performed. Should the Contractor wish to modify this schedule, a written request must be submitted to and approved by the County at least 30 calendar days before the revised schedule becoming effective. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 5 LONG TERM lY1AI�TTENANCE G: C. The Contractor shall provide the County with the following reports attached to the monthly progress billing. 1. Report of work accomplished during the billing period. 2. Report of any problems encountered and recommendations for problems outside of the contracts scope of services. 3. Completed inspection forms. PART 2 PRODUCTS AND MATERIALS 2.01 Fertilizer A. Plant fertilizer shall be Triple Pro 15-15-15 all purpose, or an approved equal. B. See Turf Maintenance Section for lawn fertilization guidelines. 2.02 herbicides, Insecticides,Fungicides,Rodenticide, and other Pesticides A. The Contractor shall deliver all herbicides, insecticides, fungicides, rodenticides, and other pesticides to the work site in the original manufacturer's containers. All chemicals shall be properly labeled in accordance with current applicable laws. B. No herbicides, insecticides, fungicides, rodenticides, and other pesticides shall be applied without prior review and approval of the County. 2.03 Plant Stakes and Ties A. Tree stakes shall be 3" minimum diameter by 10' long new lodge pole pine tree stakes,pointed at one end, and chamfered at the other. B. Stakes shall be pressure treated by wolmanizing with CCA (Chromate Copper Arsenate) wood preservative. C. Tree ties shall be sturdy rubber tire type, without wire, length as required, and manufactured by Gro Strait Products or an approved equal. U. Tie tape shall be %"wide 4mil green tie tape, standard in the trade, 2.04 Replacement Plants and Groundcovers Replacement trees, shrubs, and groundcovers shall be of a size and variety as approved by the County. Generally, replacement plant materials will be as indicated in the Reviewed Landscape flans and of a size similar to that of the neighboring plants. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 6 LUNO TERM MAINTENANCE 2.05 Utilities Water and electrical power for the irrigation system and the site lighting will be provided by the County at no cost to the Contractor, except for public improvements yet to be finally accepted by the County, in which case the Developer/Contractor shall incur all utilities costs at no cost to the County. PART 3 EXECUTION 3.01 General Maintenance and Cleanup General maintenance and cleanup shall include,but is not limited to, the following: A. LITTER AND GRAFFITI 1. As part of routine maintenance service, cleanup shall be performed by the Contractor, and shall include the pick-up of scattered trash, the emptying of all refuse containers, and the removal of all leaves, branches, excess soil, empty plant containers, grass cuttings, weeds, or any other debris that may accumulate at the site. 2. As part of incidental maintenance service, the Contractor shall promptly remove graffiti from any surface within the landscaped area. Surfaces may include soundwalls, controller and other equipment enclosures, monument signs, benches, play equipment, light fixtures, etc. The Contractor shall notify the County of all incidents of graffiti and seek approval for the incidental expense. B. TRASH CANS 1. As part of routine maintenance service, the Contractor shall be responsible for emptying the trash containers and for removal of the debris and litter control in general. Trash cans shall be washed inside and out on a regular basis. 2. Papers, rubbish, and debris shall be removed by the Contractor prior to mowing, as part of routine maintenance service. C. DISEASE AND INSECT CONTROL Refer to the DISEASE AND INSECT CONTROL section. r ' CONTRA. COSTA COUNTY LANDSCAPE STANDARDS Page 7 rMWITERM MAINTENANCE D. WEED ABATEMENT AND ANIMAL PESTS The Contractor shall perform all weed abatement as part of routine maintenance service. Elimination of animal pests is considered an incidental expense. 1. All landscape areas shall be kept free of weeds. Weeding may be done manually or by the use of selective herbicides. Extreme caution shall be observed if selective herbicides are used in order to not damage any other plants. Spraying shall not be done during windy conditions. 2. The Contractor shall remove both the root system of the weed and the exposed growth. A trowel or small hand shovel shall be used to loosen the surrounding soil prior to removal of each weed. 3. The Contractor shall perform work as required by the Fire Marshall or the County. The weed abatement operation shall be performed in a manner that eliminates the fire hazard associated with dry weeds, and which reduces any visual blight. 4. The Contractor shall exercise caution when working in areas with buried drip irrigation systems to prevent the drip tubing from becoming damaged or severed while manually removing weeds. 5. :Moles, squirrels, and gophers shall be controlled by approved methods. Poison baits, if used, must be placed so as not to create a hazard to children or pets. 5. No herbicides, insecticides, fungicides, rodenticides, or other pesticides shall be applied without prior review and approval of the County. E. WATERING The Contractor shall perforin watering as part of routine maintenance service. I. Lawns shall be deeply watered, as weather conditions require, to provide adequate moisture for optimum. growth. Lawns shall at no time show lack of fresh green color or a loss of resilience due to lack of water. 2. Wherever the permanently installed sprinkler system does not fully cover a landscaped area, the Contractor shall use hoses and sprinklers as required to uniformly water these areas. If a coverage problem persists, the Contractor shall notify the County of the problem and make recommendations for permanent system modifications that will alleviate the coverage problem, CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 8 LONYRE ;MAINTENATTV CE 3. Watering shall be done in the early morning, to the extent possible, for water conservation. Landscape areas such as parks shall not be watered during regular use hours. 4. Watering shall be controlled to prevent over-spray, excessive run-off, pooling, and over watering. Areas adjacent to roadways, especially median islands, shall be monitored weekly to prevent these problems. F. FERTILIZING The Contractor shall perform fertilization as part of routine maintenance service. 1. All trees, shrubs, and groundcover shall be fertilized twice per year, in the spring and fall, with a controlled release fertilizer. 2. Fertilizer shall be applied at the following rates: il4 pound per shrub and /a hound per tree of less than 1" trunk diameter; 3l4 pound per inch per tree for trees with more than l' trunk diameter; 20 pounds per 1000 square feet of ground cover. 3. Fertilizer shall be spread evenly under the plant out to the dripline, avoiding the root ball and base of the main stem. 3.02 Shrub Maintenance The Contractor shall perform shrub maintenance as part of routine maintenance service. A. The Contractor shall provide a complete and horticulturally correct shrub-pruning program. A combination of shearing and selective hand pruning shall be performed. When shrubs are sheared, the Contractor shall also perform selective hand pruning to regenerate new branches, eliminate dense plant crowns, and to encourage the development of balanced foliage. When planted in masses, shrubs shall be allowed to grow together to fill the bed. Shearing shall only be done to maintain a neat, uniform appearance and to keep shrubs growing within their intended space. E. Shrubs within median islands or at intersection corners shall be pruned to prevent driver sight obstructions within the safe sight distance zone defined by AASHTO Sight Distance criteria. In general, shrubs shall not be allowed to grow higher than 30-inches above the top of curb within the area designated as the sight distance zone, although a lesser height may be required at certain locations. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 9 y LONG TERM MAINTENANCE C. The foliage of shrubs planted along sidewalks, curbs, or otherhard-surfaced areas shall be pruned back to maintain a 5-inch minimum clearance measured from the inside edge of the hardsurfacing. In median islands, it is especially important to keep the maintenance band area clear of overgrown foliage to provide safe refuge for maintenance workers from approaching vehicles. D. The foliage of shrubs planted adjacent to fences, buildings, walls, pedestal-type utility enclosures, or other vertical elements shall be periodically pruned back so that the branches do not rub on or become entangled in the feature. A clear path to any feature requiring routine access shall also be maintained. E. Shearing of hedge shrubs shall be performed in an even and uniform manner. Care shall be exercised so that gaps or holes do not develop as a result of poor shearing practices. Large heavy stems shall be selectively removed to encourage foliar growth inside the branch network. F. All trimmings generated during pruning operations shall be disposed of by the Contractor on the day of pruning. Disposal of removed plant materials, especially that of diseased or infested specimens, shall be done in accordance with all applicable laws, codes, and regulations. 3e03 Groundcover and Perennial Maintenance The Contractor shall perform groundcover and perennial maintenance as part of routine maintenance service. A. The need for groundcover mowing will be determined by the County, Groundcovers such as Baccharis, Baccaris, cotoneaster, Hedera, Helix, and Hypericum shall be mowed or sheared in the spring. Groundcovers such as Myoprum, Star Jasmine, and Vinca shall be mowed or sheared in the summer. Material may be pruned by hand or by mechanical means. Removal of thick, woody stems when the plant is dormant shall also be done when necessary. Disposal of removed plant materials, especially that of diseased or infested specimens, shall be done in accordance with all applicable laws, codes, and regulations. B. All groundcover plantings shall be trimmed back from hardsurfaced materials, header boards, shrubs, trees, and utility and equipment enclosures. All groundcover areas shall be edged using a power edger or other appropriate tool. Upon completion of the edging operation, the groundcover edge shall be set back approximately % inch from the edge of the hardsurfacing. All clippings and displaced soil shall be swept away and removed from the groundcover area when edging is complete. CONTRA COSTA COL LANDSCAPE STANDARDS Page 10 LONG TERM MAINTENANCE C. The Contractor shall provide regular maintenance of all perennial flowerbeds. This includes the removal of all spent blooms and dead plant material. Beds shall also be regularly weeded. At the end of each season, perennials shall be cut back to ground level after the foliage has died back. All annual flowers shall be removed if damaged by frost. The flowerbeds shall then be raked level, and all debris removed and disposed of by the Contractor. All annualflowerbeds shall be replanted in the spring, if required by the County. Replanting of annual flowerbeds is considered and incidental maintenance service. 3.04 Tree Maintenance The Contractor shall perform tree maintenance as part of routine maintenance service. A. All trees shall be inspected by the Contractor after every windstorm or rainstorm to determine if any damage has occurred. Broken branches shall be pruned and stakes shall be straightened and adjusted as necessary so that the tree trunk is in a plumb, vertical position. B. A complete and balanced pruning program shall be provided for all trees. The Contractor shall refer to the TREE PRESERVATION AND PRUNING section for tree maintenance guidelines. 3.05 Turf Maintenance A complete and balanced pruning program shall be provided for all turf areas. The Contractor shall refer to the TURF MAINTENANCE AIND INSPECTION section for turf maintenance guidelines. Turf maintenance is a routine maintenance service. 3.06 Grading:Maintenance The Contractor shall perform grading maintenance as part of routine maintenance service. Areas in need of severe grading or Swale repair as a result of a severe flooding, extreme storm run-off scour, or vandalism will be evaluated by the County and may be considered and incidental maintenance service. A. Depressions shall be filled with topsoil, as necessary, to achieve a uniform smooth surface. B. Swales shall be repaired, re-graded, replanted, or otherwise improved as necessary to provide adequate drainage of all areas. C. Gully or rill erosion scars shall be re-graded or repaired as required by the County. Any displaced mulch or soil shall be replaced as necessary. The County 1 ` CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 11 LONG 'TERM MAINTENANCE may require that the area be re-graded to eliminate a concentrated flow condition resulting in storm run-off scour. D. The watering basin surrounding each plant pit shall be repaired as necessary to ensure proper irrigation of each plant. Water basins in the turf area are not permitted. 3.07 Irrigation System Maintenance A. GENERAL, 1. The Contractor shall provide all of the following services as part of routine maintenance service. Replacement parts are considered an incidental expense, unless damage is a result of the Contractor's actions or neglect. 2. The Contractor shall be responsible for the efficient operation of the existing irrigation system and report any damage or incorrect operation to the County. 3. It is the County's objective to actively pursue water conservation within publicly owned landscape areas. It is the Contractor's responsibility to _ monitor irrigation schedules to ensure compliance with water conservation guidelines. 4. The Contractor shall be responsible of ensuring watering requirements are met within each landscaped area. The Contractor shall be capable of performing repairs, installations, and modifications to the existing irrigation system to adequately irrigate all landscaped areas. 5. If any part of the irrigation system is vandalized or stolen, the Contractor shall immediately notify the County for approval to repair or replace the affected component as part of incidental maintenance service. If the component cannot be repaired immediately, the Contractor shall initiate a program of manual watering for all affected areas until the system is frilly functional or request to install a loaner unit. Regardless of how minor the incident, all irrigation items stolen or vandalized shallbe reported to the County. B. MAINTENANCE AND REPAIR 1.. All repairs and replacements shall be done in accordance with the IRR.IGATIO T section guidelines. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 12 $` KONG TERM MAINTENANCE 2. As part of the maintenance requirements, the Contractor shall regularly inspect the operation of the complete irrigation system, including periodic manual checks of the operation of each station. If a damaged component is discovered, the Contractor shall promptly repair the damage using replacement parts that are compatible with the original parts as indicated in the Reviewed Landscape Plans, 3. All rotors and spray heads shall operate efficiently and without obstruction. The pop-up extension shall glide smoothly to a fully extended position when in operation, and shall retract completely when the watering cycle ends. The nozzles shall spray with the proper arc and trajectory, and the orifice shall remain unobstructed. The screen within each head shall be periodically cleaned. Replacement parts shall be compatible with the existing equipment, and shall be installed in accordance with the manufacturer's directions and in accordance to the IRRIGATION section guidelines. 4. Periodically and when required by the County, the rotor or spray head at the end of the lateral line for each station shall be removed so the system can be flushed with water. This flushing shall be performed until the water flows clean and all debris and foreign matter has been cleared from the line. The rotor or spray head shall then be carefully reinstalled. 5. All remote control valves shall close consistently and completely at the conclusion of each station cycle. Main line or lateral line irrigation leaks shall be promptly repaired in accordance with the IRRIGATION section guidelines. 6. The cleaning or replacement of wye filters for drip-systems shall be performed periodically by the Contractor. 7. Any pressure regulators shall be adjusted by the Contractor to ensure optimum water delivery to the emitters. Any in-line filters shall be cleaned at least on a quarterly basis, and sooner if needed. 8. The irrigation controller shall be inspected weekly to ensure that the system programming is appropriate and efficient. The Contractor shall notify the County of any controller that does not perform to the manufacturer's specifications. 9. All spray heads, bubblers, emitters, and rotors shall be adjusted to eliminate clogs or over spray onto the streets, walkways, buildings, walls, signs, or other features that may be damaged or stained by irrigation water. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 13 >{ oN6 TERM MAINTENANCE Areas adjacent to roadways, such as median islands, shall be inspected and adjusted weekly. C. WATERING Seasonal programming of the controller shall be performed by the Contractor according to the schedules shown on the project irrigation schedule or per the evapotranspiration rates for different months of the year and the plant's crop coefficient factor. The time and duration of watering for each station shall be adjusted regularly to account for seasonal temperature and precipitation changes. The irrigation shall be shut off during weeps of heavy rain, or if the spray may turn to ice on the streets or walkways. END OF SECTION CONTRA COSTA COUNTY LANDSCAPE STANDARDS Ar Page 1 TURF MAINTENANCE AND RENOVATION TABLE OF CONTENTS PORT Nt4ME PAGE PART1 GENERAL 2 1.01 Definition of Contractor 2 1.02 Scope of Werk 2 1.03 (duality Control 3 PART 2 PRODUCTS AND MATERIALS 3 2.01 Lawn Seed for Reseeding 3 2.02 Sod for Resodding 4 2.03 Fertilizer 4 PART 3 EXECUTION 4 3.01 Mowing 4 3.02 Mowing Equipment 5 3.03 fine Trimming 6 3.04 Edging 6 3.05 Watering 6 3.06 Fertilizing 7 3.07 Core Aeration 7 3.08 Playfields and High-Use Areas 8 3.09 Turf Inspection 8 3.10 Renovation 9 PART 4 TURF CARE CHART 10 CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 2 TURF MAINT MANCE AND RENOVATION PART1 GENERAL 1.01 Definition of Contractor The term Contractor is used in its broadest sense within this section. The Contractor may be a Developer/Contractor installing public improvements to be turned over to the County for maintenance, the County General Services Department, or maintenance Contractors hired on contract by the County. Responsibilities for each type of contractor are detailed herein. 1.02 Scope of Work A. CONTRACTOR RESPONSIBILITY AND COSTS INCURRENCE 1. Developers/Contractors performing work prior to Final Acceptance of the improvements by the County shall perform all maintenance services, both routine and incidental, and incur all costs, at no charge to the County. 2. Work performed by the County General Services Department shall be charged to the appropriate work order number. Generally, separate worm order numbers will be established for routine maintenance and incidental expenses. Reference shall be made to the inter-departmental contract for a listing of the appropriate work order number per given service area. 3. Maintenance Contractors hired on contract by the County shall bid on and provide all services designated as "routine maintenance" throughout this section. When bidding on a contract, the Contractor shall be responsible for identifying all services designated as routine maintenance. The County will allocate within the contract an additional dollar amount for County approved incidental expenses. All routine maintenance services shall be provided by the Contractor, at no additional expense to the County for the duration of the contract. B. ROUTINE MAINTENANCE SERVICES 1. The Contractor shall perform regular mowing, fertilization, repair, and renovation functions to maintain turf areas in a healthy and vigorous condition. Acceptable maintenance will yield turf with a consistently green appearance that is predominantly free of weeds and voids, 2. The Contractor shall undertake aeration, reseeding, and weed control as needed as part of the routine maintenance program. CONTRA COSTA COUNTY LANDSCAPESTANDARDS Page 3 TURF MAINTENANCE AND RENOVATION 3. The work shall include the provision of all labor, materials, equipment, and apparatus not specifically mentioned herein or noted on the Reviewed/As-Built Landscape Plans, but which are incidental and necessary to complete the maintenance work. C. INCIDENTAL MAINTENANCE SERVICES All incidental maintenance services must be approved by the County prior to the Maintenance Contractor or General Services performing the work. Developers/Contractors performing work prior to final acceptance of the improvements by the County shall notify the County in writing of the services performed. After approval by the County the Contractor shall perform the following incidental maintenance services: 1. The Contractor shall undertake resodding as needed and/or in highly damaged areas. Areas in need of resodding as a result of the Contractor's actions or Contractor neglect shall be repaired at the Contractor's expense. D. RELATED WORK Related work specified elsewhere: 1. Refer to the LONG TERM MAINTENANCE section 2. Refer to the DISEASE AND IN, CONTROL section 3. Refer to the IRRIGATION section 4. Refer to other sections as needed 1.03 Quality Control All turf areas shall be maintained in a healthy, vigorous growing, and pest free condition. The Contractor shall routinely inspect the condition of all turf areas and evaluate the overall condition and identify any needed repairs. Completed inspection reports shall be submitted to the County on a monthly basis along with the Contractor's monthly progress billing. The Contractor shall reference the LONG TERM MAINTENANCE section for additional information regarding quality control and submittals and inspections. PART 2 PRODUCTS AND MATERIALS 2.01 Lawn Seed for Reseeding A. Reseeding grass seed mix shall be clean, new crop seed, consisting of the same mix specified on the As-Built flans. If it is determined that the mix is not CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 4 a lam TURF MAINTEN NCE AND RENOVATION thriving at the location, the Contractor shall consult with the County for approval of an alternative mix. B. The Contractor shall submit seed mix certification tags to the County. 2.02 Sad for Resodding A. Sod shall be freshly cut and grown from high-quality, propagative material and that is clean and free of weeds, diseases, and insects. Sod should be machine-cut at a uniform thickness, width, and length and should be well developed enough to resist tearing when handled. Sod shall not be stored for any length of time that allows for decomposition of the grass and roots. B. Sod composition shall be as indicated in the Reviewed/As-Built Landscape Plans. if it is determined that the mix is not thriving at the location, the Contractor shall consult with the County for approval of an alternative mix. 2.03 Fertilizer Granular fertilizer shall be "Best Turf Supreme" (16-6-8) during the months of March, April, and May. Turf Gold 21-3-5 should be used during the months of June, July, August, September, and October. Nitra King 22-3-9 should be used during the months of November, December, January, and February. The Contractor shall consult with the County for the use of approved equals. PART 3 EXECUTION 3.01 Mowing The Contractor shall perform mowing as part of routine maintenance service. A. The Contractor shall not mow,walk, or use any piece of equipment within the turf areas when frost is present, as this may result in damage to the plant tissues. B. The Contractor shall refrain from mowing if the turf is saturated with water, or if standing water is present. Before mowing, the Contractor shall walk over the areas to be mowed, removing all litter, bottles, rocks, and other deleterious materials. if water puddles under the feet when walking, then mowing within the saturated areas shall be postponed until the excess water has drained, infiltrated, or evaporated.. C. The mowing equipment shall be adjusted to cut the turf growth to approximately 2% to 3 inches above finish grade during the growing season and 1% to 2 inches CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 5 ;\ TURF MAINTEA&RU RENOVATION during the winter months. The Contractor shall use care to avoid scalping the turf: Not more than 113 of the grass blade shall be removed during each mow. D. Mowing is to be performed as needed from December through March, and at least weekly from April through November. E, If a mulching-type mower is utilized, then the clippings can remain as dropped by the mower provided they are spread evenly throughout the turf area. If a mulching mower is not utilized, then a mower that captures the clippings shall be used, or alternatively the Contractor can rake up the clippings and remove them from the job site the same day. F. The Contractor shall use caution when mowing over existing grade-level enclosures, utility vaults, irrigation heads, or other features and plants within the turf area. If the mower damages any such features, the Contractor shall promptly notify the County and repair the damage to the satisfaction of the County at the Contractor's expense. G. If voids or depressions are discovered in the turf area when mewing, the voids or depressions shall be filled with topsoil and/or plugged with sod to create a uniform, even finish surface. _J H. Mowing patterns shall be alternated each week, to avoidcreating rats and compaction problems. I. Annual thatch removal, also known as vertical mowing, shall be done in the early spring months. Turf thatch areas are brooding sites for insects and diseases, and therefore shall be regularly maintained to prevent thatch accumulation. 3.02 Mowing Equipment A. Tractor mowing will only be permitted in turf areas that are predominantly open and flat. Tractor mowing will not be permitted in narrow turf areas or in turf areas heavily planted with trees or other obstacles. The authorization of the County shall be obtained prior to utilizing a tractor mower in any turf area. Tractor mowing is generally not permitted when children are present. B. When conditions allow the use of tractor mowing equipment, the mowing pattern or direction shall be alternated from week to week, to avoid creating ruts and compaction problems. C. Areas that are prone to scalping shall be mowed using walk-behind mowers. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 6 TURF MAINTENANCE AND RENOVATION D. Mower blades shall be sharp and produce a clean cut. Equipment that results in torn blades with ragged edges is unacceptable and shall not be used. 3.03 Line Trimming The Contractor shall perforin line trimming as part of routine maintenance service. A. bine trimming equipment shall be utilized for turf areas inaccessible by tractor or walk-behind mowers. The line trimming equipment shall cut the grass blades to approximately the same elevation as that achieved by the mower. The clippings shall be raked-up and removed, or evenly spread. The Contractor shall use care to avoid damaging tree trunks, shrubs, other plant materials, or site features while operating the line trimmer. B. The Contractor shall cut the turf back away from rotors, spray heads, and grade- level enclosures as required to keep the features exposed and fully operational. 3.04 Edging The Contractor shall perform edging as part of routine maintenance service. - A. The interface between turf areas and hard surfaced areas shall be edged using a power edger or other appropriate tool. Upon completion of the edging operation, the turf edge shall be set back approximately V2 inch from the edge of the hard surfacing. All clippings and displaced soil shall be swept away and removed from the turf area when edging is complete. & All trees growing within turf areas shall have a circular area around the tree trunk that is free of turf and weeds. The turf edge of this area shall not be greater than 2-inches in height and shall be maintained using edging or line trimming equipment. Any soil displaced during the edging operation shall be evenly spread onto the turf. The edged ring shall be circular in shape with an equal radius on all sides of the tree. The diameter of the ring shall be between 3-feet and 6-feet depending on the trunk diameter and as determined by the County. C. Edging shall be performed as part of the routine mowing schedule. D. The Contractor shall use care to protect pedestrians and vehicles within or adjacent to the hard surfaced area during the edging operation. 3.05 `watering The Contractor shall perform watering as part of routine maintenance service. CONTRA COSTA COUNTY LANDSCAPE STANDARDS rage 7 TURF MAINTENANCE AND RENOVATION Aa Lawns shall be deeply watered, as weather conditions require, to provide adequate moisture for optimum growth. Lawns shall at no time showlack of fresh green color or a loss of resilience due to lack of water. B. Wherever the permanently installed sprinkler system does' not fully cover a landscaped area, the Contractor shall use hoses and sprinklers as required to uniformly water these areas. If a coverage problem persists, the Contractor shall notify the County of the problem and make recommendations for permanent system modifications that will alleviate the coverage problem. C. Watering shall be done in the early morning, to the extent possible, for water conservation. Landscape areas such as parks shall not be watered during regular use hours. D. Watering shall be controlled to prevent over-spray, excessive run-off, pooling, and over watering. Areas adjacent to roadways, especially median islands, shall be monitored weekly to prevent these problems. 3.06 Fertilizing The Contractor shall perform fertilization as part of routine maintenance service. A. Lawns shall be fertilized three times per year with a total of 6-9 pounds of actual nitrogen per 1,000 square feet per year. B. Lawns shall be watered deeply immediately after fertilization to prevent burning of grass. C. Supplemental turf fertilization shall be performed with a long term, slow release water insoluble nitrogen as approved by the County. D. Fertilization shall be done in accordance with the manufacturer's directions. 3.07 Core Aeration The Contractor shall perform core aeration as part of routine maintenance service. A. Core aeration shall be performed during the months of March, June, and October, and done as needed or required by the County. All irrigation heads, grade-level enclosures, and other features within the turf area shall be flagged or staked prior to aeration. f ' CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 8 .S TURF MAINTEN AND RENOVATION B. The Contractor shall utilize a coring tine device to perform the aeration procedure. Multiple passes may be required to ensure that tine holes are no more than 2% inches apart. Tines shall sink at least 3l2 inches below finish grade. C. Damage to any grade-level feature, which results from the core aeration operation, shall be repaired by the Contractor at no cost to the County. 3.08 Playfields and High-Use Areas The Contractor shall perform the following as part of routine maintenance service. A. The maintenance schedule of sports fields shall be coordinated around the play schedule to ensure that the Mowing and irrigation schedules minimize wear on fields. B. Playfields and high-use areas shall be inspected on a weekly basis or more often if necessary, after play times of heaviest use. C. The Contractor shall be particularly conscientious about inspecting the irrigation system as irrigation malfunction can cause severe damage resulting in significant cost. Areas of high use are especially susceptible to damage to the irrigation system. D, Any voids or depressions shall be filled and re-seeded. Highly damaged areas may need to be resodded and may be considered an incidental maintenance service. E. The Contractor shall notify the County of any playfield or high-use area that is in poor condition and does not respond to the care described above. 3.09 Turf Inspection The Contractor shall perform a turf inspection as part of routine maintenance service. A. The Contractor shall inspect turf areas to ensure that the turf is in goad health, consistently green and free of weeds and voids. A turf inspection form shall be submitted to the County following each inspection. B. The Contractor shall monitor for symptoms of poor turf health including inappropriate color (gray, yellow, brown, etc.), a proliferation of weeds, or any voids. C. The Contractor shall assess any deficiencies and seek assistance when necessary in determining the cause of a problem,before undertaking remedial measures. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 9 TURP MAINTENANCE AND RENOVATION D. The Contractor shall refer to the Turf Care Chart at the end of this section, which identifies symptoms and remedial measures. 3.10 Tref Renovation Turf renovation is generally considered an incidental maintenance service. If the damage is the result of the Contractor's actions or Contractor neglect, repairs shall be made to the satisfaction of the County, at the Contractor's expense. A. Turf renovation shall be undertaken when deemed necessary by a certified landscape professional due to poor turf condition. B. This work shall be performed after completion of grading, drainage, construction, and irrigation work. C. The Contractor shall place "flags" at all irrigation heads for protection and observation of grades. D. This work shall be done when soil moisture conditions are optimal to avoid development of clods and ruts. E. In the case of 100% turf renovation (no existing turf is deemed viable), spray the entire area with an appropriate herbicide to kill all remaining grass and weeds. In the case of partial turf renovation (some of existing turf is viable but broad-leaf weeds are present), spray the area with a selective herbicide. Whenever using chemicals, the Contractor shall take care to not allow chemical over-spray into landscaped areas that are to remain. All employees handling chemicals shall be licensed or certified by all applicable agencies for use of the particular chemical. F. For both partial and total renovation, the Contractor shall adhere to the following: 1. Conduct soil analysis to determine amendment needs. 2. Flail mow turf to a 1" maximum height after all turf and/or weeds are dead, remove and properly dispose of all organic debris generated. 3. Verticut/sweep turf in two directions and properly dispose of the thatch off-site. 4. Core-aerate the turf area in two directions. 5. Top-dress low spots and depressions with commercially obtained friable loam topsoil mix. In addition, fill in all ruts and depressions exceeding CONTRA COSTA COUNTY LANDSCAPE STANDARDS Wage 10 TURF MAINTENANCE AND RENOVATION 1/2" in depth when measured with a 5' straight edge laid horizontally on grade. Remove high points and obstructions exceeding 1%" above surrounding grade. 6. Top-dress soil with 6-20-20 fertilizer at a rate of 10 lbs!/1,000 square feet. 7. In a separate operation, apply seed mixture at rate of 10 lbs./1,000 square feet. 8. Spread and rough-in additives and, seed into topsoil', using a chain-link fence screen. The seed shall be covered at a depth of 1/8"-1/4". Remove rocks larger than 1"in diameter and clods exceeding 2"in diameter. 9. Roll the seedbed with a sod roller. 10. Properly water the freshly laid seed and additives. Maintain optimal soil moisture after planting and throughout the maintenance period. 11. Top-stress the area as needed with '/4" of organic amendment indicated in the soils analysis report. G. The Contractor shall assess the ability of the irrigation system to meet the new requirement due to renovation. This may include one of the following: 1. Raising the irrigation heads to match the new grade. 2. Move and replace swing joints and irrigation heads as detailed in the Reviewed Landscape Plans. 3. Re-evaluate the automatic irrigation controller. PART 4 TURF CARE CHART See next page. CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 11 ry TURF MAINTENANCE AND RENOVATION Contractor Name: Project: Inspection Date: TURF YES NO REMARKS REMEDIAL MEASURES CHARACTERISTICS ? NCLUDE DATE Overall Good Health LO ptimal Moisture Discoloration Presence of Weeds ! ; Presence of Insects/Pests I Presence of Voids Presence of Depressions ' TURF CARE CHART" Symptom Remedial Measures Wilted/Brown Grass Apply enough water to wet the soil to a depth • Early signs of wilt include grass leaves 1 of 6"-8". A soil probe may be used to check with a bluish/green cast caused by folded grass ; moisture content of the soil, Morning watering leaves or footprints that stay in the lawn I is most efficient due to higher humidity, instead of bouncing back up. negligible wind, and wetness caused by dew. Likely due to insufficient watering. Night watering is not encouraged as it encourages disease and insect development. ! Gray Appearance turning to Brown Tips or Mow with a sharp blade and remove no more I Yellow Patches after mowing. than 1/3 of the grass blade to avoid scalping. Likely due to improper mowing and/or a i ' dull mower blade. Thick Thatch Layer/Sparse Appearance • Perform core aeration to allow more air, • Thick thatch layer (1/2" or more) moisture, and fertilizer to penetrate turf. contributes to drought stress, fosters insects . Ensure proper soil pH. and pests, and inhibits light penetration making . Mow correctly. turf appear spindly. Water correctly. Overall Yellowish to Reddish Color • Apply adequate nitrogen fertilizer. Water • Shows small, reddish pustules formed in in the morning so that the grass will dry out circular or elongated patches on older leaf during the day. gblades and stems. Blades eventually shrivel + The fungicides triadimefon and and die. chlorothalonil maybe effective. ! • Likely due to Rust fungi. END OF SECTION CONTRA CESTA COUNTY LANDSCAPE STANDARDS Ar Page 1 f TREE PRESERVATIONAND PRUNING TABLE CE CONTENTS PART NAME PAGE PART I GENERAL 2 1.01 Definition of Contractor 2 1.02 Scope of Work 2 1.03 Quality Control 3 1.04 Permits and Authorization 4 PART 2 PRODUCTS AND MATERIALS 4 PART 3 EXECUTION 4 3.01 Tree Protection 4 3.02. 'free Pruning 5 3.03 Root Pruning 6 } CONTRA COSTA COUNTY LANDSCAPE STANDARDS Page 2 m AET WjJ'%W - 4 TREE PRESERVATION AND PRUNING PART1 GENERAL 1.41 Definition of Contractor The term Contractor is used in its broadest sense within this section. The Contractor may be a Developer/Contractor installing public improvements to be turned over to the County for maintenance, the County General Services Department, or maintenance Contractors hired on contract by the County. Responsibilities for each type of contractor are detailed herein. 1.42 Scope of Work A. CONTRACTOR RESPONSIBILITY AND COSTS INCURRENCE 1. Developers/Contractors performing work prior to Final Acceptance of the improvements by the County shall perform all maintenance services, both routine and incidental, and incur all costs, at no charge to the County, 2. Work perfon-ned by the County General Services Department shall be charged to the appropriate work order number. Generally, separate work order numbers will be established for routine maintenance and incidental expenses. Reference shall be made to the inter-departmental contract for a listing of the appropriate work order number per given service area. 3. Maintenance Contractors hired on contract by the County shall bid on and provide all services designated as "routine maintenance" throughout this section. When bidding on a contract, the Contractor shall be responsible for identifying all services designated as routine maintenance. The County will allocate within the contract an additional dollar amount for County approved incidental expenses. All routine maintenance services shall be provided by the Contractor, at no additional expense to the County for the duration of the contract. B. ROUTINE MAINTENANCE SERVICES 1. The Contractor shall ensure the preservation of trees and provide maintenance care and pruning of trees that are to remain at the site. 2. If the Contractor is installing improvements as part of a construction contract, the Contractor shall trim trees (limbs and tree roots) as required to construct such improvements. CONTRA COSTA COUNTY LANDSCAPE STANDARDS rage 3 { TREE PRESERVATION AND PRUNING 3. The work shall include the provision of all labor, materials, equipment, and apparatus not specifically mentioned herein or noted on the Reviewed/As-Built Landscape Plans, but which are incidental and necessary to complete the work specified. 4. The Contractor shall properly dispose of all removed plant materials, especially that of diseased or infested specimens, in accordance with all applicable laws, codes, and regulations. C. INCIDENTAL MAINTENANCE SERVICES All incidental maintenance services must be approved by the,County prior to the Maintenance Contractor or General Services performing the work. Developers/Contractors performing work prior to final acceptance of the improvements by the County shall notify the County in writing of the services performed. After approval by the County the Contractor shall perforin the following incidental maintenance services: 1. The Contractor shall prune any limbs that represent a safety hazard to the public according to the pruning guidelines detailed in fart 3, Execution. D. RELATER WORD. Related work specified elsewhere: 1. Refer to the PLANT ESTABLISHMENT MAINTENANCE section 2. Refer to the LONG TERM MANTENANCE section 3. Refer to the TREE REMOVAL AND TRANSPLANTING section 4. Refer to other sections as needed 1.03 Quality Control A. REFERENCE STANDARDS AND MATERIALS 1. All pruning work shall be performed in a safe and proper manner, adhering to CAL-OSHA, the International Society of Arborists pruning guidelines, and to ANSI A-300 Standards, 2. Trees and Building Sites: Official Publication of the International Society of Arboriculture shall be used as a reference.