B. Bidders shall acknowledge receipt of this Addendum in writing on his Proposal Form. A. ADD Section FIELD SUBDRAINAGE SYSTEM attached herein.

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1 McKee and Associates Architecture and Interior Design Addendum No. TWO Date: Project: PARKING IMPROVEMENTS TO THE GENEVA MIDDLE SCHOOL AND STADIUM IMPROVEMENTS TO THE HUGH OWEN MEMORIAL STADIUM BID PACKAGE B FOR THE GENEVA CITY BOARD OF EDUCATION GENEVA, ALABAMA A1.1 GENERAL PROJECT NO B BC # A. The following changes and/or substitutions to the plans and specifications are hereby made a part of same and are incorporated in full force as part of the contract. B. Bidders shall acknowledge receipt of this Addendum in writing on his Proposal Form. A1.2 SPECIFICATIONS A. ADD Section FIELD SUBDRAINAGE SYSTEM attached herein. B. Refer to REVISED section IRRIGATION SYSTEM attached herein. A1.3 DRAWINGS A. Refer to Sheets C1.1, C2.1, C2.2, C2.3 and C3 dated Attached herein. END OF ADDENDUM TWO 631 South Hull Street Montgomery, Alabama

2 SECTION FIELD SUBDRAINAGE SYSTEM PART 1 - GENERAL RELATED DOCUMENTS: Drawings and general provisions of Contract, including General Conditions, apply to work of this section. RELATED WORK: Review Contract Documents for requirements that affect work of this section. Specification sections that directly relate to work of this section include, but are not limited to: Section Earthwork Section Storm Drainage Pipe Section Track and Field Poured Synthetic Track Surfacing Section Grassing and Fertilizing of Football Field SYSTEM DESCRIPTION The subsurface drain system should consist of a geocomposite drain and outlet pipes of the type, size and dimensions in accordance with these specifications and project plans, or as directed by the project engineer. The drain consists of a geotextile filter fabric heat fusion bonded to an internal high density polyethylene (HDPE) core. The drain should be lightweight, flexible, and sufficiently durable to withstand automated and/or manual installation procedures. PART 2 - PRODUCTS GEOCOMPOSITE SUBSURFACE DRAIN SYSTEM Manufacturers: The following manufacturers' products have been used to establish minimum standards for materials, workmanship and function: Midwest Diversified Technology Inc., Caseyville, IL Equal products of other manufacturers may be used in the work, provide such products have been approved, by the Architect, not less than five (5) days prior to scheduled bid opening. SUBSURFACE DRAIN: Base; Equal to Hydraway 2000 manufactured by Midwest Diversified Technology Inc., Caseyville, IL COMPONENTS B FIELD SUBDRAINAGE SYSTEM

3 The drain consists of a geotextile filter fabric heat fusion bonded to an internal high density polyethylene (HDPE) core. The drain should be lightweight, flexible, and sufficiently durable to withstand automated and/or manual installation procedures. 1. Core : High Density Polyethylene (HDPE) a. Length: 150 foot b. Widths: 6, 12, 18 or 24 inches b. Depth: 1" minimum 2. Geotextile Fabric: Tencate - Mirafi 140N a. 4.5 ounce minimum b. Heat fusion bonded to the core 3. Accessories: a. Couplers, ends, outlets adapters as required and recommended by the manufacturer. 4. Geocomposite subsurface drain system shall meet the following ASTM standards as a minimum. ASTM STANDARDS: CORE: ASTM D-1621 Standard Test Methods for Compressive Properties of Rigid Cellular Plastics ASTM D-4716 Standard Method for Constant Head Hydraulic Flow Transmissivity (in-plane flow) of Geotextiles and Geotextile Related Products ASTM D- 876 Standard Test Method for Peel Resistance of Adhesives (T-Peel Test) Table 1 Core Material Requirements: Product Average Test Value ASTM Test Method Compressive Strength at maximum deflection of 20% 11,400 lbs/ft2 D1621 Flow Rate at 10 psi and gradient of gpm/ft width D4716 Peel Strength (Fabric to Core) 50 lbs/ft width D1876 GEOTEXTILE FABRIC (4.5 oz Tencate-Mirafi 140N): ASTM D-4632 Standard Test Method for Grab Breaking Load and Elongation of Textiles ASTM D-4491 Standard Test Method for Water Permeability of Geotextiles by Permittivity ASTM D-4751 Standard Test Method for Determining Apparent Opening Size of a Geotextile B FIELD SUBDRAINAGE SYSTEM

4 Table 2 Geotextile Fabric Requirements: Product Average Test Value ASTM Test Method Elongation 50 % D4632 Grab Tensile 120 lbs D4632 Permeability 135 gal/min/ft2 D4491 Apparent Opening Size 70 U.S. Std. Sieve D4751 PART 3 - EXECUTION INSTALLATION / QUALITY ASSURANCE 1. INSTALLATION EQUIPMENT All equipment necessary and required for the proper construction of the drain system should be in working condition and approved by the engineer. The contractor should also provide equipment to obtain proper compaction as needed. 2. INSTALLATION AND BACKFILL Geocomposite Drain: The geocomposite drain shall be installed at the planned grades, slope and location as specified on the plans in accordance with the manufactures recommendations. A minimum 0.05% grade shall be maintained. The excavation for vertical installation shall be a maximum of 4-inches wide; for flat (horizontal) applications the excavation should be dug to minimize over excavation beyond the width of the drain. Care should be taken to avoid damaging or applying excessive stresses to the drainage system. All necessary splices are to be made with connections furnished by the manufacturer or approved by the engineer in accordance with the project specifications. The geocomposite drain and connectors should be inspected prior to backfill being placed. If the drain is found to be out of alignment or damaged, it should be removed and replaced as directed by the engineer. Granular bedding and backfill for geotextile drain and outlet pipe shall be free draining clean crushed rock (3/4 maximum) or coarse sand/fine gravel (USDA/USGA particle size of 2 5 mm). Granular bedding should have B FIELD SUBDRAINAGE SYSTEM

5 minimum fines content. Compaction of the backfill shall be carried out in two separate operations. The first lift shall be a maximum of 8-inches thick using equipment designed for narrow trenches. The remainder of the backfill shall be compacted as directed by the engineer or in maximum 12-inch lifts and compacted to 90% of ASTM D698 (Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort) or as directed by the project engineer. The amount of trench to be excavated should not exceed the amount that can be installed and backfilled in one working day. PVC/HDPE Outlet Pipe/Collector: Outlet Pipes should consist of 4-inch diameter (minimum) PVC conforming to ASTM D3034 (Standard Specification for Type PSM Poly (Vinyl Chloride)-PVC Sewer and Pipe Fittings. HDPE pipe may also be used. The pipe joints should conform to the requirements of ASTM D3212 (Standard Specification for Joints for Drain and Sewer Plastic Pipes using Flexible Elastomeric Seals. The manufacturer shall provide the necessary fittings/joints used to join sections of the geotextile drain and connect the drain to the collectors and outlets. The contractor should do all necessary excavation at the location and depth shown on the plans. A minimum 1% grade shall be provided for the outlet/collector pipes. The width of the outlet/collector pipe trench should be sufficient to permit jointing of the pipe and thorough tamping of the bedding material under and around the pipe. The trench width should not be less than the external diameter of the pipe plus 6 inches on each side, nor should it be wider at any point below the top of the pipe than the width of the pipe plus 12 inches on each side. The trench should extend to a depth of 6 inches below the pipe elevation. The trench walls should be approximately vertical, and excavated, braced and/or shored as required for safety in accordance with local governing laws. Where soft or unstable soil conditions are encountered at the planned grade, they should be removed and replaced with approved granular material. The granular backfill should be compacted to provide adequate support for the outlet pipe. The engineer should determine the depth of removal needed and type of granular backfill to be used. If the excavation extends below the planned depth, it should be backfilled in accordance with the engineer s recommendations using approved materials. Excavated material should be removed from the site or reused as directed by the engineer. The geocomposite drain shall connect to the outlet/collector pipes or may daylight for discharge by gravity. Fittings shall connect the geocomposite drain to the PVC pipe in accordance with the drain manufacture s recommendations at locations specified by the project plans. A galvanized rodent gate or other approved screen may be installed at the discharge end of each outlet where pipe is used B FIELD SUBDRAINAGE SYSTEM

6 The amount of trench to be excavated should not exceed the amount that can be installed and backfilled in one working day. SHIPPING AND STORAGE The Drainage System shall be packaged and shipped in an opaque wrap that protects the material from dirt and ultraviolet light. The manufacturer recommends that the material remain wrapped or protected from exposure to ultraviolet light and from contamination (e.g. dirt) until it is used. System shall be protected from temperatures greater than 140 F. Each roll, or shipping unit, of drain shall be marked with a tag, or other identification label showing the product type and number and the date of manufacture. END OF SECTION B FIELD SUBDRAINAGE SYSTEM

7 SECTION IRRIGATION SYSTEM PART 1 GENERAL RELATED DOCUMENTS Drawings and general provisions of Contract including General and Supplementary Conditions and Division 1 Specification sections apply to work of this section. GENERAL Work included: The Contractor shall provide irrigation system for full coverage of the Football Field, Sidelines and all sodded areas inside the running track, complete in place, tested and approved. The systems shall also include a water valve box and fitting. The Contractor shall be responsible for the installation of a complete and operational irrigation system. Section Includes: 1. Piping. 2. Automatic control valves. 3. Transition fittings. 4. Dielectric fittings. 5. Miscellaneous piping specialties. 6. Sprinklers. 7. Controllers. 8. Boxes for automatic control valves. PERFORMANCE REQUIREMENTS: Irrigation zone control shall be automatic operation with controller and automatic control valves. Location of Sprinklers and Specialties: General Contractor shall provide irrigation system as designed by Nursery supplier for sodded and landscaped areas, and as specified herein. Make minor adjustments necessary to avoid plantings and obstructions such as signs and light standards. Maintain 100 percent irrigation coverage of areas indicated. Minimum Working Pressures: The following are minimum pressure requirements for piping, valves, and specialties unless otherwise indicated: B IRRIGATION SYSTEM -REVISED

8 1. Irrigation Main and Circuit Piping: psi. Optimal working pressure is psi. SUBMITTALS: Product Data: Submit data for each type of product indicated. Include rated capacities, operating characteristics, and furnished specialties and accessories. Wiring Diagrams: For power, signal, and control wiring. Coordination Drawings: Irrigation systems, drawn to scale, on which components are shown and coordinated with each other, using input from Installers of the items involved. Also include adjustments necessary to avoid plantings and obstructions such as signs and light standards. Qualification Data: For qualified Installer. Zoning Chart: Show each irrigation zone and its control valve. Controller Timing Schedule: Indicate timing settings for each automatic controller zone. Operation and Maintenance Data: For sprinklers, controllers, and automatic control valves to include in operation and maintenance manuals. QUALITY ASSURANCE: Installer Qualifications: Contractor and Contractor's Supervisor shall have a minimum of 5-years experience in irrigation installation. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application. DELIVERY, STORAGE AND HANDLING: Deliver piping with factory-applied end caps or with protection over pipe ends. Maintain end caps through shipping, storage, and handling to prevent pipe-end damage and to prevent entrance of dirt, debris, and moisture. Store plastic piping protected from direct sunlight. Support to prevent sagging and bending. PIPES, TUBES AND FITTINGS: B IRRIGATION SYSTEM -REVISED

9 Comply with requirements in the piping schedule for applications of pipe, tube, and fitting materials, and for joining methods for specific services, service locations, and pipe sizes. PVC Pipe: ASTM D 2241, PVC 1120 compound, Class 200 (SDR21). 1. PVC Socket Fittings: ASTM D 2467, Schedule PVC Socket Unions: Construction similar to MSS SP-107, except both headpiece and tailpiece shall be PVC with socket or threaded ends. PVC Pipe Sleeve: ASTM D2241, PVC 1120 Compound, Class 200 (SDR21). PIPING JOINING MATERIALS: Solvent Cements for Joining PVC Piping: ASTM D Include primer according to ASTM F 656. Plastic, Pipe-Flange Gasket, Bolts, and Nuts: Type and material recommended by piping system manufacturer unless otherwise indicated. AUTOMATIC CONTROL VALVES: Plastic, Automatic Control Valves: Basis-of-Design Product: Provide product by one of the following: Hunter Industries Incorporated. Rain Bird Corporation. Toro Company (The); Irrigation Division. Description: Molded-plastic body, manual-flow adjustment, pressure regulator, and diaphragm filter with wiper to prevent debris from entering valve. TRANSITION FITTINGS: General Requirements: Same size as, and with pressure rating at least equal to and with ends compatible with, piping to be joined. DIELECTRIC FITTINGS: General Requirements: Assembly of copper alloy and ferrous materials or ferrous material body with separating nonconductive insulating material suitable for system fluid, pressure, and temperature. SPRINKLERS: B IRRIGATION SYSTEM -REVISED

10 General Requirements: Designed for uniform coverage over entire spray area indicated at available water pressure. Plastic, Pop-up, Gear-Drive Rotary Sprinklers: Basis-of-Design Product: Provide one of the following: Description: Hunter Industries Incorporated. Rain Bird Corporation. Toro Company (The); Irrigation Division. 1. Body: Plastic, 4" pop-up, water lubricated gear drive rotor with check valve and easy arc adjustment. 2. Nozzle: plastic and interchangeable. Plastic, Pop-up Spray Sprinklers: Basis-of-Design Product: Provide product by one of the following: Description: Hunter Industries Incorporated. Rain Bird Corporation. Toro Company (The); Irrigation Division: 1. Body: Plastic, 6" and 12" pop-up, spray head with check valve and wiper seal. 2. Nozzle: Plastic. 3. Pattern: Easy arc adjustment. Plastic Spray Sprinkler Nozzle: Basis-of-Design Product: Provide one of the following: Description: Hunter Industries Incorporated Rain Bird Corporation. Toro Company (The); Irrigation Division. 1. Body: Multi-stream rotor with low application rate 2. Pattern: Adjustable arc with match precipitation rates B IRRIGATION SYSTEM -REVISED

11 CONTROLLERS: Basis-of-Design Product: Provide product by one of the following: Description: Hunter Industries Incorporated. Rain Bird Corporation. Toro Company (The); Irrigation Division. 1. Controller Stations for Automatic Control Valves: 30 Station control, each station variable with run times up to 6 hours with cycle soak program. Controller to include flow meter to detect abnormal flow in system, and rain sensor/rain delay program. Include switch for manual or automatic operation of each station. 2. Exterior Control Enclosures: NEMA 250, Type 4, weatherproof, with locking cover and two matching keys; include provision for grounding. 3. Body Material: Powder-coated steel. 4. Mounting: Surface type for wall 5. Control Transformer: 24-V secondary, with primary fuse. 6. Timing Device: Adjustable, 24-hour clock with 1 minute increments, automatic operations to skip operation any day in timer period, to operate every other day, or to operate two or more times daily. 7. Rain Sensor: To shut off water flow during rain. 8. Wiring: UL 493, Type UF multi-conductor, with solid-copper conductors; insulated cable; suitable for direct buryill. 9. Decoder Module: Two-wire decoder control for station expansion with ability of extensions in multiple directions up to 10,000 feet. 10. Controller shall be able to work with central control system. BOXES FOR AUTOMATIC CONTROL VALVES: Plastic Boxes: Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the work to include, but are not limited to, the following: Armorcast Products Company. Nationwide Plastics, Inc. NewBasis B IRRIGATION SYSTEM -REVISED

12 Oldcastle, Inc. Orbit Irrigation Products, Inc. USFilter/Plymouth Products, Inc. Rain Bird Corporation. Description: Box and cover, with open bottom and openings for piping; designed for installing flush with grade. 1. Size: As required for valves and service. 2. Shape: Round, Square or Rectangular. 3. Sidewall Material: PE, ABS, or FRP. 4. Cover Material: PE, ABS, or FRP. 5. Lettering: "VALVE BOX IRRJGATION" Drainage Backfill: Cleaned gravel or crushed stone, graded from 3/4 inch (19mm) minimum to 3 inches maximum. EARTHWORK: Install warning tape directly above pressure piping, 12 inches below finished grades, except 6 inches below subgrade under pavement and slabs. Drain Pockets: If necessary, backfill with cleaned gravel or crushed stone, graded from 3/4 inches to 12 inches below grade. Cover gravel or crushed stone with sheet of asphalt-saturated felt and backfill remainder with excavated material. Provide minimum cover over top of underground piping according to the following or what local governing authority or codes require: 1. Irrigation Main Piping: Minimum depth of 12 inches or below average local frost depth, whichever is deeper. 2. Circuit Piping: 12 inches 3. Sleeves: 24 inches PREPARATION: Set stakes to identify locations of proposed irrigation system. Obtain Architect's approval before excavation. PIPING INSTALLATION: Install piping free of sags and bends. Install groups of pipes parallel to each other, spaced to permit valve servicing. Install fittings for changes in direction and branch connections B IRRIGATION SYSTEM -REVISED

13 Install expansion loops in control-valve boxes for plastic piping. Lay piping on solid subbase, uniformly sloped without humps or depressions. Install PVC piping in dry weather when temperature is above 40 deg F (5 deg C). Allow joints to cure at least 24 hours at temperatures above 40 deg F ( 5 deg C) before testing. Install piping in sleeves under parking lots, roadways, and sidewalks. Install sleeves made of Class 200 (SDR21) PVC pipe and socket fittings, and solvent -cemented joints. Sleeves to be no more than 24-inches below grade. Mark location of sleeves after installation. If any transition fittings are necessary, install fittings for plastic-to-metal pipe connections according to local codes or governing authority. Install dielectric fittings for dissimilar-metal pipe connections according to local codes or governing authority. JOINT CONSTRUCTION: Ream ends of pipes and tubes and remove burrs. Bevel plain ends of steel pipe. Remove scale, slag, dirt, and debris from inside and outside of pipe and fittings before assembly. Threaded Joints: 1bread pipe with tapered pipe threads according to ASME Bl Cut threads full and clean using sharp dies. Ream threaded pipe ends to remove burrs and restore full ID. Join pipe fittings and valves as follows: 1. Apply appropriate tape or thread compound to external pipe threads unless dry seal threading is specified. 2. Damaged 1breads: Do not use pipe or pipe fittings with threads that are corroded or damaged. Do not use pipe sections that have cracked or open welds. PVC Piping Solvent-Cemented Joints: Clean and dry joining surfaces. Join pipe and fittings according to the following: 1. Comply with ASTM F 402 for safe-handling practice of cleaners, primers, and solvent cements B IRRIGATION SYSTEM -REVISED

14 2. PVC Pressure Piping: Join schedule number, ASTM D 1785, PVC pipe and PVC socket fittings according to ASTM D Join other-than schedule-number PVC pipe and socket fittings according to ASTMD PVC Non-pressure Piping: Join according to ASTM D VALVE INSTALLATION: Automatic Control Valves: Install in underground in boxes. SPRINKLER INSTALLATION: Install sprinklers after hydrostatic test is completed. Install sprinklers at manufacturer's recommended heights. Locate part-circle sprinklers to maintain a minimum distance of 4 inches (100 mm) from walls and 2 inches (50 mm) from other boundaries unless otherwise indicated. AUTOMATIC IRRIGATION CONTROL SYSTEM INSTALLATION: Equipment Mounting: Controllers to be mounted in pedestal mount or exterior boxes with provisions for locking. Location of controller shall be at the Batting Facility as directed by the Owner and Architect. CONNECTIONS: Install piping adjacent to equipment, valves, and devices to allow service and maintenance. Connect wiring between controllers and automatic control valves. IDENTIFICATION: Equipment Nameplates and Signs: Install engraved plastic laminate equipment nameplates and signs on each automatic controller. Warning Tapes: Arrange for installation of continuous, underground, detectable warning tapes over underground piping during backfilling of trenches. STARTUP SERVICE: Perform startup service B IRRIGATION SYSTEM -REVISED

15 Complete installation and startup checks according to manufacturer's written instructions. Verify that controllers are installed and connected according to the Contract Documents. Verify that electrical wiring installation complies with manufacturer's submittal. ADJUSTING: Adjust settings of controllers. Adjust automatic control valves to provide flow rate at rated operating pressure required for each sprinkler circuit. Adjust sprinklers and devices so they will be flush with, or not more than ½ inch (13 mm) above, finish grade. Sprinklers on football field are to be installed flush with the grade. CLEANING: Flush dirt and debris from piping before installing sprinklers and other devices. DEMONSTRATION: Engage a factory authorized service representative to train or Train Owner's maintenance personnel to adjust, operate, and maintain automatic control valves and controllers. PIPING SCHEDULE: Install components having pressure rating equal to or greater than system operating pressure. Underground irrigation main piping shall be the following: 1. Class 200 (SDR 21), PVC, pressure-rated pipe; Schedule 80, PVC socket fittings; and solvent-cemented joints. Circuit piping shall be the following: 1. Class 200 (SDR 21), PVC, pressure-rated pipe; Schedule 80, PVC socket fittings; and solvent-cemented joints. Circuit piping shall be the following: B IRRIGATION SYSTEM -REVISED

16 1. Class 200 (SDR 21), PVC, pressure-rated pipe; Schedule 80, PVC socket fittings; and solvent-cemented joints. Underground Branches and Offsets at Sprinklers and Devices: Schedule 80, PVC pipe; threaded PVC fittings; and threaded joints. 1. Option: Plastic swing-joint assemblies, with offsets for flexible joints, manufactured for this application. IRRIGATION ZONE FLOW DATA: The Irrigation Contractor shall submit to the Architect an Irrigation Piping Layout of Ballfields showing the location of each irrigation zone and showing all pipe sizes, the gpm per zone, the location of all automatic control valves and the location and type of all sprinkler heads. All sports field sod shall be irrigated. END OF SECTION B IRRIGATION SYSTEM -REVISED

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