B01 Section J Attachment 9 Seed Project Supplemenetal Specs.docx

SUPPLEMENTAL TECHNICAL PROVISIONS

Additions, substitutions, exceptions, and/or revisions to the Albuquerque Area--Indian Health Service/Office of Environmental Health and Engineering (AAIHS/OEHE) – Sanitation Facilities Construction (SFC) Technical Provisions, February 2016 edition. The AAIHS/OEHE SFC Technical Provisions, February 2016 edition, are incorporated by reference. The provisions are the same as if fully written herein and shall govern all Work except where superseded by the Supplemental Technical Provisions.

ADDITIONS, SUBSTITUTIONS, EXCEPTIONS, AND/OR REVISIONS TO THE TECHNICAL PROVISIONS

STP 1.00 Pre-Construction Conference:

a. A preconstruction conference will be held before the work proceeds which will cover the responsibilities and procedures of each of the interested parties to see that the project is completed according to the contract plans and specifications.

STP 2.00 Protection of Site, Moving Fences, and Minor Structures:

a. Except as otherwise provided herein, the Contractor shall protect all fences, structures, walks, utilities, trees, shrubbery, lawns, etc. During the progress of the work he shall remove all debris and unused materials and shall, upon completion of the work, restore the site as nearly as possible to its original condition, including the replacement, at the Contractor's sole expense, of any facility or landscaping which has been destroyed or damaged beyond restoration.

b. It shall be the Contractor's responsibility to visit the project site and determine actual conditions with regard to the existence of old car bodies, abandoned houses, fences, clotheslines, driveways, sidewalks, approaches, and other miscellaneous obstacles to construction.

c. The Contractor shall make all temporary openings in fences and make the necessary repairs to replace the existing fences in their original locations and conditions. Culverts, drainage pipes or other minor structures which may have to be moved temporarily from the alignment of the work shall be removed, cared for, and reset by the Contractor in a manner satisfactory to the Owner. No separate payment shall be made for the removal or replacement of these items.

d. Not all existing utilities were placed on the plans. The contractor is responsible for contacting NM One-Call Utility Locate to have existing utilities marked prior to construction as well as the three entities listed below.

e. The best available information from existing as-builts and the Mescalero Utility Department was utilized to show existing water and sewer facilities on the plans. However, it is expected that some variation will be discovered in the field. The Contractor shall coordinate with the IHS Project Engineer and the Mescalero Utility Department (Chris Little – 575-973-2304) on a daily basis to ensure that the best available information with regard to existing facility locations is shared. Any damage to existing facilities shall be repaired at the Contractors expense. All repair couplings must be approved by the IHS Project Engineer prior to installation. The Contractor will be required to excavate and possibly replace a fitting not previously approved by the Project Engineer.

STP 3.00 Tree Removal

a. Portions of the new facilities (water mains, utility vaults, water storage tanks, buildings, etc.) may require tree removal for successful installation. The contractor is responsible for marking proposed trees and coordinating with the Tribal forestry department for removal. Trees that are 6-inches or less in diameter, or which can easily be removed by the contractor’s equipment can be removed without utilizing the Tribal forestry department. Removal by the Tribe will be at no cost to the Contractor. Contractor is responsible for removing the cut trees from the site as well as the stump and brush. Stumps, brush, and debris shall be removed from the site and hauled to an Owner approved disposal site.

STP 4.00 Site Storage

a. The contractor will work with the Owner to identify a temporary site storage/staging area. There will be no owner imposed fees for use of this area. Contractor is responsible for site security and clean up.

STP 5.00 Borrow Pit

a. A borrow pit is available for the contractor’s use for bedding and backfill material. The quantity of import bedding/backfill material has not been estimated and is the responsibility of the contractor. All borrow material collection and transport will be the responsibility of the contractor. There will be no fees imposed by the Owner for use of the borrow material.

STP 6.00 Water for Construction Purposes

a. If obtained from Mescalero Apache sources, the Contractor will be required to haul water from a Mescalero Apache storage tank. All water shall be conserved to the largest degree possible. The Contractor shall supply a new water meter, or meter calibration certificate from within the last 12 months, and approved backflow preventer. The contractor shall meter all water used.

b. Neither IHS nor Mescalero Apache Tribe assumes or accepts any responsibility as to the reliability of the water supply. Interruption of the water supply is possible. The water supply may be interrupted at any time or curtailed in the event the community supply is threatened. If an interruption of the Contractor's water supply occurs, the Contractor shall not be entitled to any compensation from the Tribe, IHS, or Project Representative.

c. It shall be the Contractor's responsibility to provide and maintain temporary plumbing, transportation, and storage required to complete the work.

d. All water should be carefully conserved. Before final acceptance, all temporary connections and piping installed by the Contractor shall be removed in a manner satisfactory to IHS and Project Representative.

e. All costs associated with the maintenance of the meter, backflow preventer, and transportation of the water shall be the responsibility of the Contractor. The water cost for the Contractor, if obtained from Mescalero sources, will be $30 per 1,000 gallons.

f. Only water from a potable supply shall be used for the project.

STP 7.00 Modification to Technical Provisions Section 06 – Gravity Sanitary Sewers

TP-603 Materials, Section D Warning Tape:

Add the following text:

Copper Tracer Wire: Copper tracer wire shall be installed on all sewer mains. Wire shall be 10-gauge single strand copper polyethylene insulated tracing wire, type THHN/THWN. Tracer wire shall be securely attached to the top of the pipe a minimum of three times for each pipe length. The wire shall be properly grounded at each manhole. Tracer wire shall be accessed at the port to be installed on the manhole collar. The port shall consist of 2-inch PVC pipe embedded in the collar, and shall have a threaded brass cap.

TP-603 Materials:

Add the following Section:

Plug Valve: Plug valves shall meet or exceed the following:

a. Plugs shall be solid one piece, cast Cast Iron ASTM A126 Class B. The plug shall have a cylindrical seating surface eccentrically offset from the center of the shaft. Plug shall not contact the seat until at least 90% closed. Resilient plug facing shall be Chloroprene (CR). Spherical shaped plugs are not acceptable.

b. Bodies shall be Cast Iron ASTM A126 Class B. Ports shall be rectangular and 100% Port. The valve port area shall meet or exceed standard pipe area per ASME/ANSI B36.10M. Round ports are not acceptable. Bearings shall be sleeve type and made of sintered, oil impregnated permanently lubricated type 316 stainless steel, ASTM A743 Grade CF8M through 36” (900mm). In valves larger than 36” (900mm), the upper and lower plug journals shall be fitted with ASTM A240 type 316 stainless sleeves with body bearings of ASTM B30, Alloy C95400 aluminum bronze.

c. Seats shall be 1/8” thick welded overlay of not less than 95% pure nickel. Seat shall be at least 1/2” wide, 1/8” thick through entire width and raised. The raised surface shall be completely covered with nickel to insure that the resilient plug face contacts only the nickel seat.

d. Adjustable packing shall be Acrylonitrile-Butadiene (NBR) multiple V-ring type, with a packing gland follower. Packing gland shall permit inspection, adjustment or complete replacement of packing without disturbing any part of the valve or actuator assembly, except the gland follower. Non-adjustable packing or packing requiring actuator removal to replace the packing, is not acceptable.

e. Pressure ratings shall be 175 psi (1210 kPa) on valve sizes through 12" (300mm) and 150 psi (1035 kPa) for 14" (350mm) and larger. Every valve shall be given a certified hydrostatic shell test and seat test, with test reports being available upon request.

f. All valves larger than 6” shall be installed with worm gear actuators. All gearing shall be enclosed in a cast iron housing, with outboard seals to protect the bearings and other internal components. The actuator shaft and gear quadrant shall be supported on permanently lubricated bronze bearings.

g. Buried actuators shall be 90% grease filled. Input shaft and fasteners shall be stainless steel. Actuator mounting brackets shall be totally enclosed. Other actuators to be installed according to drawings or customer specifications.

h. End connections shall meet or exceed the latest revisions of AWWA C517 and other applicable standards. End Connections shall be Flanged drilled per ANSI B16.1 and/or Mechanical Joint per AWWA C111.

i. Measurement and Payment: Plug valves shall be paid at the unit price listed on the Proposal Schedule. Payment shall include, but is not limited to all plant, labor, materials, construction, plug valves, riser box and lid, marker posts, and all necessary incidentals required for a successful installation as outlined in the specifications and drawings.

STP 8.00 Purchasing O&M Equipment and Training

a. Contractor shall purchase and provide to the owner, O&M equipment as manufacture by Spartan Tool, 1618 Terminal Road, Niles, MI 49120, 1-800-435-3866, or approved equal. The O&M equipment shall consist of the following:

Sewer cleaning system shall be delivered to the owner with a full tank of diesel fuel.

b. O&M Manuals: Contractor shall provide 5 hard copies of the related O&M manuals to be used. Contractor shall submit for review, a copy to the project engineer and owner for approval. Comments shall be incorporated into the final set of O&M manuals.

c. Training Session. After the transfer and acceptance of the O&M equipment, the contractor shall schedule and provide a minimum of 4 hours training on the O&M equipment. Training shall include instructions on startup, operations, troubleshooting, and instructions on using the O&M manual. Field demonstrations of the equipment shall take place during the training. The training shall be conducted by a certified manufacturer’s representative. Contractor shall provide a minimum 2-week prior notice for scheduling the O&M training session.

d. Measurement and Payment: Payment shall be made at the unit price listed in the Proposal Schedule, “O&M Equipment and Training” and shall include, but is not limited to all materials, supply, and labor for purchase, transport, transfer, certification, O&M manuals, training, and all necessary incidentals for the successful purchase and transfer of the O&M equipment.

Supplemental Technical Provision – Page 4 of 4