W912BV18Q0113_Amendment_0001.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

The purpose of this Amendment is to replace, in its entirety, the Statement of Work, pages 42 through 51, Section 00 10 00.

ALL other terms and conditions remain UNCHANGED.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 12

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 31-Jul-2018

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912BV18Q0113

X 9B. DATED (SEE ITEM 11)

25-Jul-2018

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

31-Jul-2018

CODE

CONTRACTING DIV

US ARMY CORPS OF ENGINEERS, TULSA DISTRICT

2488 E. 81ST STREET

TULSA OK 74137-4290

W912BV 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912BV18Q0113

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 01 00 00 - GENERAL REQUIREMENTS

The following have been modified:

01 10 00 STATEMENT OF WORK

DEMOLITION OF ABANDONED TOILET/SHOWER HOUSES

FURNISH AND INSTALL MANUFACTURED TOILET/SHOWERS

AND CONCRETE SIDEWALKS

JOHN REDMOND AND MARION RESERVOIRS

PART 1 – GENERAL

1.1 SCOPE OF WORK This specification covers the requirements for demolition and removal of existing shower facilities. Then furnishing and installing a CXT manufactured “Navajo” model shower/toilet unit or equivalent. The contractor shall provide all materials, labor, tools, and equipment necessary for building demolition of existing shower facility, site preparation, and replacement of shower/toilet buildings with identified prefabricated building in accordance with manufacturer and these contract specifications. Completion of the contract will ensure that a fully functional shower house facility, including sewer, electric, water and replacement of sidewalks from the public parking areas to the new shower facilities in Riverside West Park, John Redmond Reservoir and Hillsboro Cove Park, Marion Reservoir, Kansas. At Hillsboro Cove Park the contractor shall provide and install a new sewage lift station, of model and design identified by these specifications. Also at Riverside West Park the contractor shall install a new septic tank and lateral lines as per Kansas Dept. of Health and Environment regulations and these specifications.

The contractor shall perform all work in accordance with manufacturer and this contract specifications. Care shall be taken not to cut nor damage overhead and underground utilities. The contractor will be responsible for all damages and subsequent repairs.

1.1.2 It is strongly recommended that any perspective bidder visit the site.

1.2 REFERENCES

Manufacturer’s Criteria for the installation of pre-cast concrete flush toilet/shower building as well as an appropriately sized sewage lift station, Hillsboro Cove, to handle the uses of the new shower facility. All work shall be accomplished in accordance with all State of Kansas and National standard work practices.

1.3 BASIS FOR PAYMENT

The contractor shall invoice for Lump Sum Payment after all work has been completed, all paperwork submitted and accepted by the Contracting Officer’s Representative (COR). Mail invoice to: Council Grove Lake Office, 945 Lake Road, Council Grove, KS 66846-9322

1.4 WORK HOURS

Regular work hours will be from 8:00 am - 5:00 pm Monday through Friday, excluding federal holidays. Any proposed changes to the work hours must be approved by the Contracting Officer’s Representative (COR). The contractor shall coordinate work with the COR as the public will continue to use these parks.

1.5 COMPLETION TIME

Work shall be completed in 120 calendar days after award and within 60 days after start of work.

1.6 SAFETY REQUIREMENTS

The contractor shall comply with the Army Corps of Engineers Safety and Health Requirements Manual, EM 385-1-1 dated 30 November 2014 in addition to all applicable Federal, State, and Local safety codes and practices. It is the contractor's responsibility to insure public safety during the entire duration of the contract. Necessary signs, barriers, warning devices, etc. shall be operated and maintained by the contractor at contractor expense. Contractor employees shall comply with the minimum dress requirements as stated in Chapter 5 of EM 385-1-1.

1.7 EQUIPMENT

All equipment used to perform work under this contract shall be in good operating and mechanical condition and shall comply with EM 385-1-1. All equipment shall be inspected by the contractor and the inspection reports shall be submitted to the Contracting Officer’s Representative prior to utilization of such equipment to accomplish work on this contract.

1.8 WEATHER LIMITATIONS

None

1.9 SUBMITTALS

The contractor may be required to furnish certain submittals. These submittals may be progress reports, certifications of materials, safety plans, drawings, training certifications, work plans, etc.

These will be specifically listed and shall be furnished to the COR. Submittals requiring Government approval shall be formally prepared and approval granted prior to proceeding with work involving these submittals. FIO (For Information Only) submittals do not require Government approval.

1.9.1 WORK PLAN

The Contractor’s work plan shall be submitted to the Contracting Officer or COR for approval prior to the beginning of work. The work plan shall provide detailed procedures defining the Contractor’s provisions for all demolition and installation activities.

1.9.2 SAFETY PLAN and JOB HAZARD ANALYSIS

A Safety plan and Job Hazard Analysis for work procedures and safety and health protection shall be approved prior to beginning work. This plan shall include the procedures for equipment operation, employee and public safety precautions.

1.9.3 PAYROLLS

Contractor and subcontractor payrolls shall be submitted weekly and directly to USAED, Tulsa District, Attn: Labor Relations Contracting Div, 2488 East 81st Street, Tulsa, OK 74137-9998. The contractor shall submit DD Form 879, Statement of Compliance with payrolls. If there are subcontractors, the contractor shall submit Standard Form 1413, Statement of Acknowledgment signed by both the contractor and subcontractor.

1.10 PREWORK CONFERENCE

A pre-work conference will be held with the Contracting Officer and/or the COR and contractor prior to the commencement of any work. The contractor's responsible person and necessary administrative staff will be required to attend this meeting. Procedures for proper invoicing and payment, schedule, etc., will be covered at this time. Five working days prior to the pre-work conference the contractor shall provide the COR with these submittals: Accident Prevention Plan, Activity Hazard Analysis and required submittals. Additionally, due to this being a construction contract, no activities can proceed prior to the contractor receiving a Notice to Proceed.

1.11 ENVIRONMENTAL CLEANUP

The contractor shall maintain a clean work area at all times. The contractor shall be responsible for the protection and preservation of the environment and will be required to restore all damages/disturbances subject to the approval of the Contracting Officer. The contractor shall remove and dispose of all debris off Government property in a state approved disposal site unless specified otherwise by the COR. The contractor will be required to comply with all Federal, State and local environmental requirements. The contractor shall remove all excess materials and clean the entire area in a timely manner.

1.12 COORDINATION OF WORK

The contractor shall coordinate all work with the Contracting Officer’s Representative, maintain communications with project office personnel relating to campsite use, and efficiently raise awareness to the effected public. The Contractor shall be required to complete the work without impacting the day to day operations in the park any more than is necessary to complete the installation of the new shower facility. Public exclusion to the area should be coordination with the COR at least 72 hours prior to work performance to ensure safety restrictions and public notification has been met. The Government point of contact, Marion Reservoir (POC) will be Kevin McCoy at (620) 382-2101 and John Redmond Reservoir (POC) will be Gary Kepley at

(620) 767-5195. All work schedules shall be coordinated prior to beginning work in any location.

Equipment staging and aggregate stockpiling of material are predetermined by the COR.

1.13. ANTITERRORISM AND OPERATIONS SECURITY REQUIREMENTS:

The Contractor shall be responsible for ensuring all personnel, to include sub-contractor personnel, comply with the training requirements and procedures identified on the document titled “Antiterrorism/Operations Security Requirements” in Section H, Special Contract

Requirements. When items for which training is identified, the Contractor shall ensure that all personnel complete acknowledgement for the specified training; the Contractor is responsible for ensuring all training acknowledgments, when applicable, are submitted to the COR or Contracting Officer within 10 calendar days of contract award (or NTP for construction contracts) and five working days prior to the pre-work conference. In no event shall any contractor or sub-contractor personnel be onsite prior to completion of any applicable training and submission of training verification. Training materials and verification forms will be provided by the Contracting Officer upon written request.

1.14 CONTRACTOR PERSONNEL

Personnel hired by the contractor shall be fully qualified to perform the work in a professional manner and in industry installation standards. The Contractor must pre‐screen employees, candidates and subcontractor employees using the E‐verify Program (http://www.dhs.gov/E‐ Verify) website to meet the established employment eligibility requirements. The contractor must ensure that the Candidate has two valid forms of Government issued identification prior to ensure the correct information is entered into the E‐verify system. An initial list of verified/eligible Candidates must be provided to the COR no later than 3 business days after the initial contract award (or NTP for construction contracts). The Contracting Officer may require, in writing, that the contractor remove from the work any employee the Contracting Officer deems incompetent, careless, or otherwise objectionable.

1.15 LIQUIDATED DAMAGES

Liquidated damages of $300.00/day, shall be incurred by the contractor for every day beyond the end of the performance period in which the contract is not completed.

1.16. QUALITY CONTROL

The contractor is responsible for all actions necessary to allow for successful completion of this contract.

1.17. DEVIATIONS FROM SPECIFICATIONS

Any deviations from these specifications must be approved by the Contracting Officers Representative (COR).

PART 2 – PRODUCTS

2.1 CONTRACTOR FURNISHED PRODUCTS AND PROPERTY

The Contractor shall inspect all materials at the time of delivery and before placement. All materials shall be new and undamaged. Any materials found to be damaged or defective shall be rejected and removed from the job site immediately. The Contractor will be required to remove and replace any defective work and materials at no cost to the Government. All materials will be the name brands as specified or the equivalent thereof.

2.1.1 SHOWER BUILDING

Two (2) CXT Navajo Shower/Toilet.

Manufactured by: CXT Precast Products, Inc., 3808 N. Sullivan Rd., Bldg # 7, Spokane, WA 99216, 800-696-5766, Fax: 509-928-8270 E Mail: sales@cxtinc.com Web Site: www.cxtinc.com

The Shower/Toilet Buildings shall be a CXT Navajo. The buildings must withstand a snow load of 250 pound per square foot and must withstand the effects of a 120 mile per hour wind load.

The buildings must also withstand the effects of a “zone four” earthquake. These buildings shall be an all concrete structure and must meet the requirements of the American with Disabilities Act (ADA) Requirements and Uniform Federal Accessibility Standards.

The concrete mix design shall be designed to ACI 211.1 to produce concrete of good workability. Concrete shall contain a minimum of 505 pounds of cement per cubic yard.

All reinforcing steel shall conform to ASTM A615. All welded wire fabric shall conform to ASTM A185. All reinforcement shall be new, free of dirt, oil, paint, grease, loose mill scale and loose or thick rust when placed. Steel reinforcement shall be centered in the cross-sectional area of the walls and shall have at least 1 inch of cover on the under surface of the floor and roof. Full lengths of reinforcing steel shall be used when possible. Reinforcing bars shall be bent cold.

This Shower/Toilet buildings shall have a simulated cedar shake textured roof (color Java Brown), simulated barn wood texture walls (color Oatmeal Buff), Interior (color White), stainless steel plumbing fixtures, electric hand dryers, interior and exterior lights, vandal resistant stainless steel modular shower control units in the shower rooms, modular shower units, offloaded and setup at site.

Interior floor and exterior slabs shall be floated and troweled. A light broom finish shall be applied to the exterior slabs. All exterior building walls and exterior screen walls shall be a barn wood texture. All exterior surfaces of the roof panels shall be cast to simulate a cedar shake roof.

The underside of the overhand shall have a smooth finish.

The type of paints for interior floors shall be a two (2)-component, catalyzed, water borne polyamide epoxy with a micronized polymer additive to provide uniform slip resistant texture.

The color shall be gray. Interior walls and ceilings shall be a modified acrylic, water repellent penetrating stain. The color shall be white followed by a clear acrylic anti-graffiti sealer.

Grab bars shall be 18 gauge, type 304 stainless steel with 1-1/2 inch clearance. Grab bars shall each be able to withstand three hundred (300) pound top loading.

Doors shall be a flush panel type 1-3/4 inch thick, minimum sixteen (16) gauge galvanized steel, top painted with ATM ALKYD. Door frames shall be knockdown or welded type, single rabbet, minimum sixteen (16) gauge galvanized steel top pained with DTM ALKYD, width to suit wall thickness.

The wall vent shall be crank operated allowing the unit to be opened or closed. The crank shall be removable. Wall vent frame shall be cast into the concrete wall. The units’ frame shall be C3 x 4.1 channel steel. The louver frame and louvers shall be eighteen (18) gauge zinc coated steel with baked enamel finish. The vent shall be covered with an insect screen.

Waste and vent material shall be ABS or PVC plastic and will be plumbed to meet Uniform Building Codes. Water material shall be PEX tubing with “shark bite” fittings. A gate valve shall be provided at the inlet end of the water line. All water lines shall be of a size to provide proper flushing action based on a nominal water pressure of 40 psi. All plumbing shall be concealed in the service area. A main shut-off valve and drain shall be provided with plumbing.

All fixtures shall be constructed of stainless steel except for the toilet which will be of porcelain.

The toilet shall be wall-hung, with siphon jet action. The toilet shall have an automatic sensor flush system and shall be mounted with the top of the seat 17 inches above the finished floor.

The flush system shall be of a water saver type with a flow of no less than 1.6 gallons per flush.

All hot water will be of “hot water on demand” type eliminating the need for a hot water tank suitable to produce hot water for maximum use.

The lavatory shall be stainless steel with back splash guard, front overflow opening, equipped with brass trap and drain pipe without stopper. The sink shall be twenty (20) inches wide x eighteen (18) inches front to back x six (6) inches deep and shall have automatic off and on water flow sensors.

The shower shall be an ADA compliant shower.

All electrical wiring shall be in conduit, surface mounted in the service area and concealed in the user compartments. All wire shall be copper.

A 150-amp breaker panel shall be provided in the chase area. The lighting on the exterior of buildings shall be LED lighting with a photocell activated system; interior facility LED lighting shall be sensor activation/deactivation, and the chase room lighting being switch activated. Three exterior, LED (35 watt equivalent) vandal resistant lights shall be provided. Two GFI outlets shall be located next to each sink. Two restroom exhaust fans with 270 CFM speed controlled (control in chase area) shall be provided. The hand dryer shall be an air compression type with remote motor unit and a push button switch located in cast nozzle housing with flexible hose connecting blower motor, housing and nozzle.

2.1.2 Sewer pipe and fittings shall be Schedule 40 ABS Type DWV for solvent cemented joints.

2.1.3 2 inch curb-stop shut-off valves and drain valve shall be located outside the shower buildings.

2.1.4 200 Amp disconnect switch at CXT site to terminate underground electric service to the building.

2.1.5 Commercial sewage lift station shall include two submersible Hydromatic, HPG200M2-2 grinder pumps (2 HP, 230 volt single phase, 15.6 amps, 60 hertz) each guided by two stainless steel guide rails extending from the top of the wet-well to the discharge connection. These pumps will alternate in use. Sealing of the pump unit to the discharge line connection shall be accomplished by a machined (metal to metal watertight contact) with a rubber flange. The intent of this design is so that the pumps may be pulled up and out of the well to be serviced. The discharge line shall pass through the wall of the well with stainless steel pipe and stainless steel threaded connections, inside and outside, to the discharge line (the intent of this specification is to eliminate any issues with movement between the well and the line) and no deeper than 42” and no less than 36”. The one way valve shall be located inside the well on the pump side of the vertical discharge line connection with union couplings so it can be serviced. Each horizontal line, on the discharge side of discharge line connection, there shall be a valve that is accessible from the lid of the well, that when turned off keeps water from returning into the well when the pump is being serviced. No portion of the pump shall bear directly on the wet-well floor. The pump shall be capable of producing 30 gpm at a total pumping head of 30 feet. The wet well chamber shall be 1000 gallons constructed of fiberglass equipped with anti-floatation flanges. A bolt down cover plate of ¼ inch diamond tread aluminum construction reinforced to 300 psi live load, stainless steel locking devices and accessories with bituminous undercoat. A NEMA 4X control panel shall be pedestal mounted directly on the wet well cover. A NEMA 4X junction box with cord grips and a stainless steel float switch bracket, wiring shall be installed in conduit. All electrical and junction boxes shall be mounted outside the well mounted on the pedestal, accessible and in waterproof boxes (the intent of this specification is to only have wires in the well). The float switches shall be Hydromatic 3900 mercury switches in polypropylene casings with PVC sheathed cables. The lift station vault will be set on a minimum 4” thick compacted layer of ¾ dry screen or washed gravel.

2.1.6 Concrete for sidewalks shall be 4000 PSI, 28 day strength.

2.1.7 Fill/bedding sand will be utilized and compacted as appropriate for specific component installations as identified by manufacturer recommendations/specifications or to meet installation codes and warranty requirements.

2.1.8 Electric Conductor shall be Direct Burial Type USE copper conductor and #6 bare ground wire and buried to a depth of no less than 36” and no more than 40”.

2.2 DELIVERY AND STORAGE

Materials shall be delivered to the site undamaged and stored out of contact with the ground.

Materials that are damaged during the delivery or improper storage shall be replaced at no cost to the government.

2.3 GOVERNMENT FURNISHED PROPERTY

The Government will provide backfill material (topsoil) to be placed around the perimeter of the finished concrete sidewalks, AB-3 gravel for perimeter sidewalk base fill material and limestone screening bedding material for concrete sidewalk. The Contractor will be responsible for loading and hauling the government furnished material to the job site, (approximately 5 miles).

PART 3 – Execution

3.1 ACCOMPLISHMENT OF WORK: All work shall be accomplished in a safe, workmanlike manner and in accordance with standard industry practices. Plumbing work shall comply with the National Plumbing Code. Electrical work shall comply with the National Electrical Code. The contractor shall provide a copy of all required licenses.

3.2 PART A – DEMOLATION

Demolition and Disposal of Structures and Facilities per Kansas Department of Health and Environment guidelines. The contractor shall be responsible for the demolition and disposal of identified toilet/shower units including all associated materials, concrete floors and adjoining sidewalks off government property and in a disposal site licensed by the Kansas Department of Health and Environment..

3.3 PART B – SITE PREPARATIONS

The Contractor shall be responsible for clearing access to the work area. The Corps of Engineers will determine and mark trees and shrubs in the clearing area if determined to be removed by the COR Site locations and building orientations can be seen in Appendix A for Marion Reservoir and Appendix B for John Redmond Reservoir.

3.3.1 The buildings pipe chase door shall face the parking lot. The Contractor shall strip sod and topsoil to allow the finished base pad to be at the established level, 3” - 6” above surrounding grade.

The base pad area shall extend a minimum of 6 inches outside the building’s floor dimensions in each direction or as required by CXT. The bottom of the excavated area shall be compacted prior to placement of aggregate material. The aggregate base pad shall have a minimum thickness of 18 inches and shall consist of ¾ inch minus gravel material leveled and compacted in six inch lifts to support the building. The bearing of the soil and base shall have a minimum of 1,500 pounds per square foot.

Upon final compaction of the base area a final 1 inch lift of sand materials shall be placed and leveled over the entire area to cushion the placement of the building. Site preparation shall follow the manufacturer’s suggested installation procedures and as outlined in these specifications.

3.3.2 The contractor shall design and determine electrical requirements for the two (2) CXT Navajo buildings and one (1) lift station. Required changes to the existing electrical configurations shall be the contractor’s responsibility to contact electrical provider to make required arrangements for power.

The meter hub, weather head and 200 amp disconnect switches shall be configured per electrical provider requirements. Install direct-buried copper conductor from the disconnect switch to the distribution box of the CXT buildings and lift stations. Depth of the direct buried conductors shall be 24-inches below finished grade. All underground conductors shall be encased in a sand bedding or conduit to provide protection from rocks and debris. Conductors installed above grade shall be encased in Sch 80 PVC conduit. Install and connect sewage lift station supply cable and make necessary connection in the control panel.

3.3.3 The Contractor shall install all sewer, drain and water supply lines in the base pad area 30 inches below ground level and/or per manufacturer’s recommendations for stub up locations. Connect gravity sewer line to the septic tank/lift station and make necessary connections to the water and electrical systems. Separation of utility lines shall comply with Kansas Dept. of Health and Environment. The name of the standard is “Policies, General Considerations and Design Requirements for Public Water Supply Systems in Kansas”. Any deviation from this specification must be approved by the COR.

3.3.4 The Contractor shall make all final connections in each shower/toilet building upon completion of building setup. Work includes all final plumbing and electrical connections.

3.4.2 The water connection work includes, but is not limited to; installing 2-inch water line, curb-stop shut-off valves and drain valves (location as determined by the COR), and making necessary connection to the existing water system, owned by the government. The government will provide approximate location of existing government owned utilities and lateral field locations, but the contractor shall contact DIG SAFE for location of all underground lines. The contractor shall backfill and dress disturbed areas making them suitable for seeding by others. This includes free of rocks, roots and other debris as approved by the COR.

3.5 PART C – Concrete Sidewalks. These specifications require the contractor to place each CXT Building within the footprint of the previous structure and to locate and install the parking lot and general use sidewalks in relationship to the new building and with each other as to ADA (Americas with Disabilities Act) standards and specifications. The final location of each CXT Building will be dependent on placement, length, and slope of the existing parking lot but will be in the same footprint and orientation as the previous structure and sidewalks will be finished in form and function that marries up to the location and levels of the new CXT building.

3.5.1 The contractor shall furnish labor, equipment and materials to install 6-inch concrete sidewalks around each CXT Building. The backside sidewalk shall be 30-inchs wide, the front apron shall be 8-feet wide and the two end apron shall be 6-feet wide. The sidewalk connecting the parking lot and the front sidewalk shall be 6-feet wide. Excess topsoil will be used to backfill areas around the perimeter of the poured sidewalks. After concrete forms are removed, the contractor shall fill the holes resulting from the form removal and landscape the areas to a level that matches undisturbed surrounding grounds around the construction site and dressed and then seeded with Buffalo grass seed. This includes free of rocks, roots and other debris as approved by the COR.

Post installation concrete sealer will be applied per COR direction.

3.5.2 The sidewalks shall be constructed on a compacted limestone screenings base prepared by the contractor. The concrete forms shall be grout tight and sufficiently anchored to prevent displacement during placing of the concrete. Prior to placement of concrete, form surfaces in contact with concrete must be either wetted or oiled. When oil is used, it must be applied prior to the placement of the reinforcing steel. Concrete Reinforcement shall be accomplished by using 3/8 inch diameter reinforcing steel on 12 inch centers. The steel shall be placed in the center portion of all sidewalks and placed within 6 inches of the outside edge of the sidewalk wrapping around all corners with a 12 inch overlap and wire tied. The reinforcement steel must be cleaned of loose or flaky rust, mill scale, oil, or any substance that might reduce or destroy bond.

Construction joints shall be installed if a continuous pour cannot be performed. The sidewalk shall be attached to the building by drilling and embedding into the concrete 3/8 inch diameter reinforcing steel a minimum of 6 inches on 24-inch centers. In addition, the contractor shall scribe a control joint ½-inch deep at a maximum interval of 6-feet per running length of sidewalk. The final grade of the sidewalks shall meet the thresholds of the shower/toilet door openings and slope 1 inch in four feet away from the building or as approved by the COR. Prior to placement of the concrete the Contractor shall notify the Government Inspector to approve placement of the forms and reinforcement steel.

3.5.3 Transit/Ready-mixed, regular weight 4000 PSI concrete shall be delivered to the forms at a temperature below 85 degrees F. Ready mixed concrete shall be batched, mixed, and transported in accordance with ASTM C 94. Delivery tickets will be furnished with each delivery and a copy made available to the government inspector.

3.5.4 Concrete Placement and Finishing: During placement the concrete shall be consolidated to its full depth by vibratory method/internal vibration to prevent voids and honeycombs. The concrete slab edges shall be floated and finished to eliminate sharp corners and produce a hard, non-slip surface with no exposed aggregate. The concrete shall be placed and finished so as to provide a surface that is free from defects such as low areas (bird baths) or high ridges, etc. The finished surface edges shall be straight without bows or bends. The surface of the concrete shall receive a steel trowel finish but while still sufficiently wet to be worked; the final finish shall be a fine broom finish.

3.5.5 Form Removal. Forms may be removed after 48 hours and must be accomplished in a manner that prevents damage to the structure.

3.5.6 Curing and Protection. All concrete shall be cured by an approved method for seven days.

During the curing, the concrete shall be protected from physical damage. The concrete maybe cured either by moist curing or membrane curing. Moist curing shall be performed by covering with polyethylene sheet.

3.6 PART D - Lift Station, Sewer System (Marion). The contractor shall remove existing septic tank and install one lift station for the Navajo Shower located in Hillsboro Cove Park and reattach any existing force main lines that service other facilities. Install lift station equipment and accessories as specified in Part 2 section 2.1.5 of this specification and manufacturer’s specifications.

3.6.1 The contractor shall excavate trench and install 2-inch effluent sewer line a minimum depth of 30-inches from the sewer lift station to accommodate transportation of liquids to existing government owned lagoon (approximately 200’).

3.7 PART E – Sewer System (John Redmond). The contractor shall remove existing septic tank, install a new one and a lateral system to accommodate the Navajo Shower located in Riverside West Park as per Kansas Health and Environment Regulations. Install septic tank and lateral system as specified in Part 2 section 2.1.5 of this specification and manufacturer’s specifications.

3.8 PART F – Install Building. The contractor shall install two (2) Navajo Shower/Toilet Buildings, as identified in Section 2.1.5 and in accordance with the manufacturer’s specifications. Floor grade shall be 3”-6” above surrounding grade or as per CXT specifications.

4.0 WARRANTY

Contractor will guarantee that all completed work will be free of any defects and poor workmanship for a period of 1 year. All defects and poor workmanship found will be corrected with no extra charge to the government.

5.0 MANUALS

The contractor shall furnish a copy of all the related drawings and manufacturer’s manuals or warranty documents to the COR upon completion.

(End of Summary of Changes)