Specifications.doc

INDEX OF SPECIFICATIONS

000051-

Summary of Work

011250-

Measurement and Payment

011900-

Mobilization

024101-

Demolition

033000-

Cast-in-Place Concrete

099100-

Painting 221122-

Hand Pumps

312000-

Earthwork

332100-

Well Abandonment

332101-

Well Casing

332102-

Well Testing

SECTION 000051 - SUMMARY OF WORK

PART 1 - GENERAL

1.1 SUMMARY

A. This project includes but is not limited to: replacing hand pumps in 6 locations on the Salmon Challis National Forest. Each hand pump replacement will include removal of existing hand pumps, demolition of existing concrete pads and gutters. Improvements include extending well casing to meet Idaho Regulations (18-inches above final grade), installing PVC well liner, installing new fiberglass pump rods, installing new hand pumps, constructing concrete pads, constructing concrete gutters and sumps, and minor grading and aggregate placement to improve drainage around concrete pads.

B. This project also includes abandonment of 12 wells and removal of all existing site improvements associated with the wells.

1.2 LOCATION

A. This project is located in Lemhi and Custer counties, Idaho.

1.3 USE OF PREMISES

spec writer: Delete this Article if Owner places strict limitations on Contractor's use of premises, and use Division 1 Section "Work Restrictions" instead. Expand Article if Owner's restrictions are minor. See the Evaluations in Division 1 Section "Work Restrictions.”

spec writer: Retain paragraph below if Project is on a vacant site or in an unoccupied building being renovated and there are no Owner-occupancy requirements. Revise to suit Project.

A. Contractor shall at all times conduct his operations to ensure the least inconvenience to the public and employees. No closures will be permitted.

B. Confine storage of materials to areas as approved by the CO.

C. Contractor shall provide adequate signing and barricades and take necessary safety measures to protect the public during all construction operations. Contractor shall minimize disturbance of all undisturbed areas.

D. Preservation of Natural Features: Confines all operations to work limits of the project. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

1. Provide temporary barriers to protect existing trees and plants and root zones.

2. Do not remove, injure, or destroy trees or other plants without prior approval. Consult with CO and remove agreed-on roots and branches that interfere with construction.

3. Do not fasten ropes, cables, or guys to existing trees.

4. Carefully supervise excavating, grading, filling, and other construction operations near trees to prevent damage.

E. Existing Utilities: Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the Government.

spec writer Insert additional paragraphs to specify minor restrictions on Contractor's use of premises or to specify minor limitations because of Owner occupancy.

1.4 CONSTRUCTION SEQUENCE

A. There is no specified construction sequence for this project.

B. Depending on conditions, normal fire restrictions may apply to activities associated with this project.

1.5 FIELD VERIFICATION

A. Field verify all new and existing dimensions affecting the work of this contract before ordering products.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION (Not Used)

END OF SECTION 000051

February 2005

SECTION 011250 - MEASUREMENT AND PAYMENT

PART 4 - GENERAL

4.1 SUMMARY

A. Measurement and payment for contract work will be made only for and under those pay items included in the Schedule of Items. All other work, labor, materials, equipment, and incidentals necessary to successfully complete the project will be considered as included in the payment for items shown.

B. When more than one class, size, type, thickness, etc. is specified in the Schedule of Items for any pay item, suffixes will be added to the item number to differentiate between the pay items.

4.2 DETERMINATION OF QUANTITIES

A. The following measurements and calculations shall be used to determine contract quantities for payment.

1. For individual construction items, longitudinal and lateral measurements for area computations shall be made horizontally or corrected to horizontal measurement unless otherwise specified.

2. For excavation or embankment volumes, the average end area method shall be used to compute volumes. However, if in the judgment of the Contracting Officer (CO), the average end area method is impractical, measurement shall be made by volume in hauling vehicles or by other three-dimensional methods.

3. For Structures, they shall be measured according to neat lines shown on the drawings or as altered by the CO, in writing, to fit field conditions.

4. For standard manufactured items (such as fence, wire, plates, rolled shapes, pipe conduits) identified by gauge, weight, section dimensions, and so forth, such identifications shall be considered the nominal weights or dimensions. Unless controlled by tolerances in cited specifications, manufacturer's tolerances shall be accepted.

4.3 UNITS OF MEASUREMENT

A. Payment shall be by units defined and determined according to U.S. Standard measure and by the following:

1. 94lb Bag: Measurement will be for the actual number of 94lb bags of standard cement or grout.

2. Cubic Yard (CY): A measurement computed by one of the following methods:

a. Excavation, Embankment, or Borrow. The measurement computed by the average end area method from measurements made longitudinally along a centerline or reference line.

b. Material in Place or Stockpile. The measurement computed using the dimensions of the in-place material.

c. Material in the Delivery Vehicle. The measurement computed using measurements of material in the hauling vehicles at the point of delivery. Vehicles shall be loaded to at least their water level capacity. Leveling of the loads may be required when vehicles arrive at the delivery point.

3. Each (EA): One complete unit, which may consist of one or more parts.

4. Gallons (GAL): The quantity shall be measured by any of the following methods:

a. Measured volume in container.

b. Metered volume by approved metering system.

c. Commercially package volume.

5. Hour (HR): Measurement will be for the actual number of hours (or fraction thereof) ordered by the Contracting Officer and performed by the contractor.

6. Linear Foot (LF): Measurement of work along its length from point-to-point; parallel to the base or foundation. Do not measure overlaps.

7. Lump Sum (LS): One complete unit.

8. Mile: Measured horizontally along the centerline of each roadway, approach, or ramp.

9. Pound (LB): For sacked or packaged material, measurement will be the net weight as packed by the manufacturer.

10. Square Foot (SF): Measured on a plane parallel to the surface being measured.

11. Square Yard (SY): Measured on a plane parallel to the surface being measured.

12. Ton: Measured as a short ton consisting of 2,000 pounds.

4.4 METHOD OF MEASUREMENT

A. One of the following methods of measurement for determining final payment is designated on the Schedule of Items for each pay item:

1. ACTUAL QUANTITIES (AQ) - These quantities are determined from actual measurements of completed work.

2. DESIGNED QUANTITIES (DQ) - These quantities denote the final number or units to be paid for under the terms of the contract. They are based upon the original design data available prior to advertising the project. Original design data include the preliminary survey information, design assumptions, calculations, drawings, and the presentation in the contract. Changes in the number of units shown in the Schedule of Items may be authorized under any of the following conditions:

a. As a result of changes in the work authorized by the CO.

b. As a result of the CO determining that errors exist in the original design that cause a pay item quantity to change by 15 percent or more.

c. As a result of the Contractor submitting to the CO a written request showing evidence of errors in the original design that cause a pay item quantity to change by 15 percent or more. The evidence must be verifiable and consist of calculations, drawings, or other data that show how the designed quantity is believed to be in error.

3. LUMP SUM QUANTITIES (LSQ) - These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job. They shall not be measured.

4. STAKED QUANTITIES (SQ) - These quantities are determined from staked measurements prior to construction.

5. VEHICLE QUANTITIES (VQ) - These quantities are measured or weighed in hauling vehicles.

PART 5 - PRODUCTS (NOT APPLICABLE)

PART 6 - EXECUTION (NOT APPLICABLE)

END OF SECTION 011250

MAY 2006

SECTION 011900 - MOBILIZATION

PART 7 - GENERAL

7.1 SUMMARY

A. This item is intended to compensate the Contractor for operations including, but not limited to, those necessary for the movement of personnel, equipment, supplies, and incidentals to the project site; for payment of premiums for bonds and insurance for the project; and for any other work and operations which must be performed or costs that must be incurred incident to the initiation of meaningful work at the site and for which payment is not otherwise provided for under the contract.

7.2 MEASUREMENT AND PAYMENT

A. The measurement shall be lump sum for mobilization. Payment shall be as follows:

1. Bond premiums will be reimbursed after receipt of the evidence of payment.

2. 50% of the lump sum, not to exceed 5% of the original contract amount, will be paid following completion of 5% of the original contract amount not including mobilization and bond premiums.

3. Payment of the remaining portion of the lump sum, up to 10% of the original contract amount, will be paid following completion of 10% of the original contract amount not including mobilization and bond premiums.

4. Any portion of the lump sum in excess of 10% of the original contract amount will be paid after final acceptance.

5. Progress payments for mobilization and preparatory work shall be subject to retainage.

PART 8 - PRODUCTS (NOT USED)

PART 9 - EXECUTION (NOT USED)

END OF SECTION 011900

July 2005

SECTION 024101 - DEMOLITION

PART 10 - GENERAL

A. This Section includes general requirements for all demolition work shown on the drawings or included in other specifications. This includes the loading, handling, hauling, and placing of excess excavation material, unsuitable excavation material, clearing and grubbing debris, and construction debris.

B. Measurement and Payment- Work associated with replacing existing hand pumps and concrete pads will be included in Section 024101. Work associated with well abandonment will be included in Section 332100.

PART 11 - MATERIALS- Not Applicable

PART 12 - EXECUTION

A. Existing Items to Remain: Protect items to remain against damage and soiling during demolition.

B. General: Remove demolished materials from Project site and legally dispose of them off of Government property.

1. Do not allow demolished materials to accumulate on-site.

2. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.

C. Burning: Do not burn demolished materials.

12.2 CLEANING

A. Clean adjacent structures and improvements of dust, dirt, and debris caused by building demolition operations. Return adjacent areas to condition existing before building demolition operations began.

END OF SECTION 024101

SECTION 033000 - CAST-IN-PLACE CONCRETE

PART 13 - GENERAL

13.1 SUMMARY

A. This Section specifies cast-in place concrete, including formwork, reinforcement, concrete materials, mixture design, placement procedures, and finishes.

13.2 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Design Mixtures: For each concrete mixture. Indicate amounts of mixing water to be withheld for later addition at Project site.

C. Field quality-control test reports.

13.3 MEASUREMENT AND PAYMENT

A. There will be no separate measurement or payment for work in this section. Payment will be included at the contract unit price for items shown on the Schedule of Items.

PART 14 - PRODUCTS

14.1 STEEL REINFORCEMENT

A. Reinforcing Bars: ASTM A 615/A 615M, Grade 60, deformed.

B. Plain-Steel Wire: ASTM A 82, as drawn.

C. Deformed-Steel Wire: ASTM A 496.

14.2 REINFORCEMENT ACCESSORIES

A. Joint Dowel Bars: ASTM A 615/A 615M, Grade 60, plain-steel bars, cut bars true to length with ends square and free of burrs.

B. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcing bars and welded wire reinforcement in place. Manufacture bar supports from steel wire, plastic, or precast concrete according to CRSI's "Manual of Standard Practice," of greater compressive strength than concrete.

14.3 CONCRETE MATERIALS

A. Cementitious Material: Use the following cementitious materials, of the same type, brand, and source, throughout Project:

Select type and color of portland cement from options in subparagraph below.

Portland Cement: ASTM C 150, Type II.

Select class of aggregate from options in paragraph below or revise to suit Project. ASTM C 33 limits deleterious substances in coarse aggregate depending on climate severity and in-service location of concrete. Classes in first set of options are ASTM C 33 default classes for concrete exposed to weather for Severe, Moderate, and Negligible weathering regions, respectively. Revise first two options to Class 4S or 4M if concrete will be exposed to frequent wetting. Retain last option if damage caused by concrete expansion from alkali silica or alkali carbonate reactions is anticipated.

B. Normal-Weight Aggregates: ASTM C 33, graded, from a single source.

Maximum Coarse-Aggregate Size: 1 inch nominal.

Fine Aggregate: Free of materials with deleterious reactivity to alkali in cement.

C. Water: ASTM C 94/C 94M and potable.

14.4 ADMIXTURES

A. Air-Entraining Admixture: ASTM C 260.

Retain paragraph and subparagraphs below for integrally colored concrete.

14.5 CURING MATERIALS

If subparagraphs titled "Available Products" or "Products" are retained in this Article, coordinate with Part 2 "Manufacturers" Article. Retain "Available" for nonproprietary and delete for semiproprietary specifications.

Select curing aids and materials from remaining paragraphs.

A. Absorptive Cover: AASHTO M 182, Class 2, burlap cloth made from jute or kenaf, weighing approximately 9 oz./sq. yd. when dry.

B. Moisture-Retaining Cover: ASTM C 171, polyethylene film or white burlap-polyethylene sheet.

C. Water: Potable.

Retain paragraph and subparagraphs below if a dissipating-type, waterborne, membrane-forming curing compound is required. Although the EPA mandates maximum VOC emissions of 350 g/L for curing compounds, verify VOC emission limits of authorities having jurisdiction. If slow breakdown of curing membrane could interfere with bonding of floor coverings, retain removal subparagraph in "Concrete Protecting and Curing" Article in Part 3.

D. Clear, Waterborne, Membrane-Forming Curing Compound: ASTM C 309, Type 1, Class B, dissipating or nondissipating.

14.6 CONCRETE MIXTURES, GENERAL

A. Prepare design mixtures for each type and strength of concrete, proportioned on the basis of laboratory trial mixture or field test data, or both, according to ACI 301.

Use a qualified independent testing agency for preparing and reporting proposed mixture designs based on laboratory trial mixtures.

Retain paragraph and subparagraphs below if limiting percentage of cementitious material that can replace portland cement. Neither ACI 301 nor ACI 318 (ACI 318M) limit amount of cementitious material that can replace portland cement unless concrete is exposed to deicing chemicals. Identify parts of building or structure affected by these limits unless extending them to all concrete.

Retain appropriate option in first paragraph below for chloride limits. Identify portions of building with different limits if required. Percentages below repeat ACI 301 limits, respectively, for prestressed (post-tensioned) concrete, reinforced concrete exposed to chloride, reinforced concrete that will not be dry or protected from moisture, and reinforced concrete that will be dry or protected from moisture. ACI 301 and ACI 318 (ACI 318M) express this percentage by weight of cement, not cementitious material.

B. Limit water-soluble, chloride-ion content in hardened concrete to 0.06 percent by weight of cement.

C. Admixtures: Use admixtures according to manufacturer's written instructions.

Retain paragraph below if integrally colored concrete is required, and indicate locations here or on Drawings.

14.7 CONCRETE MIXTURE

A. Proportion normal-weight concrete mixture as follows:

Minimum Compressive Strength: 3750 psi at 28 days.

Minimum Cementitious Materials Content: 6.5 bags per cubic yard minimum

Slump Limit: 3 inches, plus or minus 1 inch.

Air Content: 5 percent, plus or minus 1 percent at point of delivery.

Synthetic-fiber dosage rates in subparagraph below reflect typical recommendations of manufacturers. Retain first option for synthetic fiber used for reducing plastic shrinkage cracking. Retain second option for synthetic fiber used for improving hardened concrete properties. Revise dosage if required.

14.8 CONCRETE MIXING

Retain option in paragraph below if steel or synthetic fibers are required.

A. Ready-Mixed Concrete: Measure, batch, mix, and deliver concrete according to ASTM C 94/C 94M and ASTM C 1116, and furnish batch ticket information.

When air temperature is between 85 and 90 deg F, reduce mixing and delivery time from 1-1/2 hours to 75 minutes; when air temperature is above 90 deg F, reduce mixing and delivery time to 60 minutes.

B. Project-Site Mixing: Measure, batch, and mix concrete materials and concrete according to ASTM C 94/C 94M. Mix concrete materials in appropriate drum-type batch machine mixer.

For mixer capacity of 1 cu. yd. or smaller, continue mixing at least 1-1/2 minutes, but not more than 5 minutes after ingredients are in mixer, before any part of batch is released.

For mixer capacity larger than 1 cu. yd., increase mixing time by 15 seconds for each additional 1 cu. yd.

Provide batch ticket for each batch discharged and used in the Work, indicating Project identification name and number, date, mixture type, mixture time, quantity, and amount of water added.

PART 15 - EXECUTION

15.1 FORMWORK

A. Forms shall be clean inside, accurately set and properly secured. Forms shall be sufficiently tight and rigidly constructed to contain the concrete without leakage or distortion. Forms for concrete exposed as a finished surface shall have smooth faces with tight, flush joints. Forms shall be left in place until the concrete is safely self-supporting, and then shall be removed without damage to the concrete.

B. Chamfer or round exterior corners and edges of permanently exposed concrete.

15.2 EMBEDDED ITEMS

A. Place and secure anchorage devices and other embedded items required for adjoining work that is attached to or supported by cast-in-place concrete.

15.3 STEEL REINFORCEMENT

A. Reinforcing bars and members shall be accurately shaped and placed, as indicated on the drawings. Bars shall overlap a minimum of 24 diameters at all splices and be securely wired and shall be firmly held in place during the placing of concrete by spacers, chairs or other suitable supports. Extreme care shall be taken to embed steel in concrete not less than 1-1/2 inches from the finished concrete surface at any point.

B. Clean reinforcement of loose rust and mill scale, earth, ice, and other foreign materials that would reduce bond to concrete.

15.4 CONCRETE PLACEMENT

A. Before placing concrete, verify that installation of formwork, reinforcement, and embedded items is complete and has been inspected by the Contracting Officer or authorized representative.

B. The contractor shall notify the Contracting Officer a minimum of 24 hours prior to placing concrete.

C. The contractor will prepare a minimum of two 6” diameter x 12” long concrete test cylinders from each 5 cubic yards placed to determine if the minimum acceptable compressive strength is achieved. The contractor shall have compressive strength tests performed on all cylinders. A copy of the test results shall be submitted to the Contracting Officer.

D. Before test sampling and placing concrete, water may be added at Project site, subject to limitations of ACI 301.

E. Surfaces on which concrete is to be placed shall be thoroughly moistened with water immediately before placing concrete.

F. All standing water shall be removed prior to concrete placement.

G. All concrete shall be placed while fresh and before it has taken an initial set. Retempering any partially hardened concrete with additional water will not be permitted.

H. After being deposited, concrete shall be consolidated (tamped and spaded or vibrated) until all voids are filled and free mortar appears on the surface. The concrete shall be placed as near as possible to its final position and vibrators may not be used to transport concrete.

I. Consolidate concrete during placement operations so concrete is thoroughly worked around reinforcement and other embedded items and into corners.

Maintain reinforcement in position on chairs during concrete placement.

Screed slab surfaces with a straightedge and strike off to correct elevations.

Slope surfaces uniformly to drains where required.

Begin initial floating using bull floats or darbies to form a uniform and open-textured surface plane, before excess bleedwater appears on the surface. Do not further disturb slab surfaces before starting finishing operations.

J. Cold-Weather Placement: Comply with ACI 306.1 and as follows. Protect concrete work from physical damage or reduced strength that could be caused by frost, freezing actions, or low temperatures.

When average high and low temperature is expected to fall below 40 deg F for three successive days, maintain delivered concrete mixture temperature within the temperature range required by ACI 301.

Do not use frozen materials or materials containing ice or snow. Do not place concrete on frozen subgrade or on subgrade containing frozen materials.

Do not use calcium chloride, salt, or other materials containing antifreeze agents or chemical accelerators unless otherwise specified and approved in mixture designs.

K. Hot-Weather Placement: Comply with ACI 301 and as follows:

Maintain concrete temperature below 90 deg F at time of placement. Chilled mixing water or chopped ice may be used to control temperature, provided water equivalent of ice is calculated to total amount of mixing water. Using liquid nitrogen to cool concrete is Contractor's option.

Fog-spray forms, steel reinforcement, and subgrade just before placing concrete. Keep subgrade uniformly moist without standing water, soft spots, or dry areas.

L. Expansion Joints shall be placed as shown on the drawings. The joint space shall be 3/8-inch minimum and shall be filled with asphalt impregnated fiberboard.

15.5 FINISHING

A. General: Comply with ACI 302.1R recommendations for screeding, restraightening, and finishing operations for concrete surfaces. Do not wet concrete surfaces.

B. Finish:

Consolidate surface by hand floating if area is small or inaccessible to power driven floats. Restraighten, cut down high spots, and fill low spots. Repeat float passes and restraightening until surface is left with a uniform, smooth, granular texture.

Immediately after float finishing, slightly roughen trafficked surface by brooming with fiber-bristle broom perpendicular to main traffic route. Coordinate required final finish with Contracting Officer before application.

All edges shall be finished with an edging tool.

15.6 CONCRETE PROTECTING AND CURING

A. General: Protect freshly placed concrete from premature drying and excessive cold or hot temperatures. Comply with ACI 306.1 for cold-weather protection and ACI 301 for hot-weather protection during curing.

B. Evaporation Retarder: Apply evaporation retarder to unformed concrete surfaces if hot, dry, or windy conditions cause moisture loss approaching 0.2 lb/sq. ft. x h before and during finishing operations. Apply according to manufacturer's written instructions after placing, screeding, and bull floating or darbying concrete, but before float finishing.

C. Unformed Surfaces: Begin curing immediately after finishing concrete. Cure unformed surfaces, including floors and slabs, concrete floor toppings, and other surfaces.

D. Cure concrete according to ACI 308.1, by one or a combination of the following methods:

Moisture Curing: Keep surfaces continuously moist for not less than seven days with the following materials:

a. Water.

b. Continuous water-fog spray.

c. Absorptive cover, water saturated, and kept continuously wet. Cover concrete surfaces and edges with 12-inch lap over adjacent absorptive covers.

Moisture-Retaining-Cover Curing: Cover concrete surfaces with moisture-retaining cover for curing concrete, placed in widest practicable width, with sides and ends lapped at least 12 inches and sealed by waterproof tape or adhesive. Cure for not less than seven days. Immediately repair any holes or tears during curing period using cover material and waterproof tape.

Curing Compound: Apply uniformly in continuous operation by power spray or roller according to manufacturer's written instructions. Recoat areas subjected to heavy rainfall within three hours after initial application. Maintain continuity of coating and repair damage during curing period.

15.7 CONCRETE SURFACE REPAIRS

A. Defective Concrete: Repair and patch defective areas when approved by Contracting Officer. Remove and replace concrete that cannot be repaired and patched to Contracting Officer's approval.

B. Repairing Formed Surfaces: Surface defects include color and texture irregularities, cracks, spalls, air bubbles, honeycombs, rock pockets, fins and other projections on the surface, and stains and other discolorations that cannot be removed by cleaning.

Immediately after form removal, cut out honeycombs, rock pockets, and voids more than 1/2 inch in any dimension in solid concrete, but not less than 1 inch in depth. Make edges of cuts perpendicular to concrete surface. Clean, dampen with water, and brush-coat holes and voids with bonding agent. Fill and compact with patching mortar before bonding agent has dried. Fill form-tie voids with patching mortar or cone plugs secured in place with bonding agent.

Repair defects on surfaces exposed to view by blending white portland cement and standard portland cement so that, when dry, patching mortar will match surrounding color. Patch a test area at inconspicuous locations to verify mixture and color match before proceeding with patching. Compact mortar in place and strike off slightly higher than surrounding surface.

Repair defects on concealed formed surfaces that affect concrete's durability and structural performance as determined by Contracting Officer.

C. Repairing Unformed Surfaces: Test unformed surfaces, such as floors and slabs, for finish and verify surface tolerances specified for each surface. Correct low and high areas. Test surfaces sloped to drain for trueness of slope and smoothness; use a sloped template.

Repair finished surfaces containing defects. Surface defects include spalls, popouts, honeycombs, rock pockets, crazing and cracks in excess of 0.01 inch wide or that penetrate to reinforcement or completely through unreinforced sections regardless of width, and other objectionable conditions.

After concrete has cured at least 14 days, correct high areas by grinding.

Correct localized low areas during or immediately after completing surface finishing operations by cutting out low areas and replacing with patching mortar. Finish repaired areas to blend into adjacent concrete.

Correct low areas scheduled to remain exposed with a repair topping. Cut out low areas to ensure a minimum repair topping depth of 1/4 inch to match adjacent floor elevations. Prepare, mix, and apply repair topping and primer according to manufacturer's written instructions to produce a smooth, uniform, plane, and level surface.

Repair defective areas, except random cracks and single holes 1 inch or less in diameter, by cutting out and replacing with fresh concrete. Remove defective areas with clean, square cuts and expose steel reinforcement with at least a 3/4-inch clearance all around. Dampen concrete surfaces in contact with patching concrete and apply bonding agent. Mix patching concrete of same materials and mixture as original concrete except without coarse aggregate. Place, compact, and finish to blend with adjacent finished concrete. Cure in same manner as adjacent concrete.

Repair random cracks and single holes 1 inch or less in diameter with patching mortar. Groove top of cracks and cut out holes to sound concrete and clean off dust, dirt, and loose particles. Dampen cleaned concrete surfaces and apply bonding agent. Place patching mortar before bonding agent has dried. Compact patching mortar and finish to match adjacent concrete. Keep patched area continuously moist for at least 72 hours.

END OF SECTION 033000

July 2005

SECTION 099100 - PAINTING

PART 16 - GENERAL

16.1 SCOPE

A. Perform all work necessary to supply and paint well casing extension.

16.2 PRODUCT HANDLING

A. All painting material shall be delivered to the site in the manufacturer's original containers with labels intact and seals unbroken.

16.3 ENVIRONMENTAL

A. Surfaces shall be painted only when they are free from moisture. No painting shall be done when temperature is below 50 degrees F., except when specifically directed otherwise in writing by the Contracting Officer.

16.4 MEASUREMENT AND PAYMENT

A. Payment for this work will be included in Item 332101.

PART 17 - PRODUCTS

17.1 MATERIALS

A. Material shall all be first quality products. The Benjamin Moore & Co. products listed are given to establish the type and quality of products to be used. Other products of equivalent quality may be submitted to the Contracting Officer for review and approval. Top line products of Pratt & Lambert, Sherwin-Williams, Fuller-O'Brien, Olympic, and Pittsburgh paints and stains are equivalent to those listed in this specification.

1. Ferrous Metal: Soft gloss, alkyd modified, acrylic house paint; MoorGlo Latex House and Trim Paint, #096 (max. spread rate - 500 sq. ft./gallon. Prime with alkyd base primer formulated to protect against rust and corrosion; Retardo Rust Inhibitive Paint, #163 (max. spread rate - 600 sq. ft./gallon.

2. Prime coats and finish coats of any one paint system shall be the products of the same manufacturer, except for manufacturer-applied factory or shop primed surfaces.

PART 18 - EXECUTION

18.1 PREPARATION OF SURFACES

A. Surfaces to be painted shall be clean and free of dirt, dust and any other substance which might interfere with the functioning of the painting system. All surfaces to be painted shall be in proper condition to accept, and assure the proper adhesion and functioning of the particular painting system or coating specified.

B. All steel and ferrous metal surfaces to be painted will be primed before installation. Bolts, welds and places where prime coat has been damaged shall be wire brushed to remove all loose paint, rust, and scale. Then apply one coat of ferrous metal primer.

18.2 WORKMANSHIP AND APPLICATION

A. Paint shall be applied in accordance with the applicable specification and/or manufacturer's instructions.

B. Paints and finishing materials shall be free from skins, lumps, or any foreign matter, and kept well stirred while being applied.

C. Work shall be protected against spatters. stains, or soiling, and each type of finish shall be protected against similar defacement by other finish and shall be left clean.

D. Each coat of paint shall be evenly worked out and allowed to dry before any subsequent coat is applied or rubbing done.

E. Finish coats shall be the exact shades and textures selected.

F. The finish work shall be free from runs and sags, defective brushing, and clogging of lines or angles.

18.3 COLOR SCHEDULE

Well Casing shall be painted dark green to match hand pump.

18.4 TOUCHING UP

A. At the completion of other branches of the work, all painted and finished work shall be touched up and restored where damaged or defaced, and the entire work left free from blemished.

END OF SECTION 099100

SECTION 221122 – HAND PUMPS

PART 19 - GENERAL

19.1 SUMMARY

A. This Section includes the following:

Hand pump.

Pump stand.

Suction pipe.

Pump rod.

Pump cylinder.

Crushed aggregate road base.

Concrete pad and gutter.

Gravel sump Well Testing B. Related Sections include the following:

Section 024101 “Demolition

Section 033000 “Cast-in-Place Concrete.”

Section 312000 “Earthwork.”

Section 332101 “Well Casing”

Section 332102 “Well Testing”

19.2 DEFINITIONS

A. PVC: Polyvinyl chloride plastic.

B. GSP: Galvanized steel pipe.

19.3 SUBMITTALS

A. Product Data: For the following:

Pipe and fittings/ connectors.

Pump stand.

Pump cylinder.

Disinfection chemicals

B. Certification that washed rock meets the gradation requirements of this section.

C. Maintenance Data: To include in maintenance manuals.

19.4 QUALITY ASSURANCE

A. All work is to be done according to applicable Federal, State, and Local codes.

19.5 MEASUREMENT AND PAYMENT

A. Payment will be for Each Hand Pump and will include the pump stand, suction pipe, pump rod and cylinder, crushed aggregate road base, concrete pad, concrete gutter, gravel sump and all other equipment, material, work and incidentals necessary to complete the item.

B. Payments will be as listed for the following items:

Hand Pump: Payment for Each hand pump installed, including pump stand and cylinder and installation of all other necessary components and connectors.

Suction Pipe: Linear Feet of suction pipe as furnished and installed to the nearest 0.5 foot, including pipe connectors.

Pump Rod: Linear Feet of pump rod furnished and installed, including rod connectors and accessories.

Concrete Pad: Payment for each concrete pad, including gutter, sump and crushed aggregate.

19.6 DELIVERY, STORAGE, AND HANDLING

A. Products shall be kept free from damage during delivery, storage, and handling. Protect from dirt and moisture during storage.

PART 20 - PRODUCTS

20.1 HAND PUMP

A. Pump Stand

Description: Drinking fountain pump with built in reservoir, release valve and shroud.

Capacity and Characteristics

a. Model: Monitor 1DFHFS, as manufactured by Baker Manufacturing Company or an approved equal.

B. Pump Cylinder

Description: Brass, 1-1/4-inch NPT.

Capacity and Characteristics

a. Dimensions: 10-inch maximum stroke, 3.5-inch O.D., 3-inch I.D.

b. Model: Monitor #00005 as manufactured by Baker Manufacturing Company or an approved equal.

C. Suction Pipe

PVC: 1 ¼” NPS, ASTM D 1785, Schedule 80; threaded joints.

a. Labeled with NSF International logo, “NSF-PW.”

b. Pre-threaded 21-foot lengths.

c. Fittings: Threaded, ASTM D2464.

D. Pump Rod

Rod Body Characteristics

a. Pultruded, using only Type E fiberglass rovings.

b. 21-foot rod lengths.

c. Average Modulus of Elasticity: 6.7 x 10^6 psi.

d. Density: 0.074 lbs/in^3.

Model: 5/8” AquaLite Sucker Pump Rod (without guides) and accessories as manufactured by American West Windmill Company or an approved equal.

e. Coupling Kits: 5/8” AquaLite male coupling kit.

f. Sinker Bar: 1-3/16” diameter, 5/8” male x 5/8” female couplings, 31” long, 10 pounds.

20.2 SITE PREPARATION AND CRUSHED AGGREGATE

A. Site preparation shall conform to the requirements of Section 312000 “Earthwork.”

B. Crushed aggregate shall be obtained from an approved commercial source. Crushed aggregate shall be ¾” minus crushed stone or gravel.

20.3 CONCRETE AND REINFORCEMENT

A. Concrete and reinforcing steel shall conform to the requirements of Section 033000 “Cast-in-Place Concrete.”

20.4 GRAVEL SUMP

A. Washed Rock: 3/4-inch to 1-inch washed and screened material containing no lumps of soil or organic material.

PART 21 - EXECUTION

21.1 INSTALLATION

A. Installation of Concrete Pad – Site preparation and grading for concrete pads shall be done according to Section 312000. Concrete pad construction shall be in accordance with Section 033000.

B. Install hand pump and all related components according to the manufacturer’s requirements.

C. Pump cylinder, suction pipe and pump rod shall be assembled and lowered into the well casing to the depth shown or as determined by the Contracting Officer. The suction pipe assembly shall be fixed in the well casing in such a manner to prevent it from falling further into the well when not attached to the pump stand, but will allow the suction pipe assembly to be withdrawn for servicing of the pump cylinder.

D. Contractor shall install pump stand by connecting the suction pipe assembly and bolting the pump stand to the casing. Contractor will ensure that suction pipe and casing flange connections are watertight. After bolting the pump stand to the casing, the Contractor shall run a bead of silicone caulk between the base of the pump stand and the well casing.

E. The Contractor shall drill a 1/16-inch weep hole in the suction pipe so that it is located about 8 feet below the ground surface.

21.2 CLEANING

A. All chemicals used to disinfect the well shall meet ANSI/NSF 60.

B. Prior to assembly and installation of the suction pipe assembly, Contractor shall clean the cylinder, pipe and rod of all foreign substance and then disinfect the components with the chlorine solution.

C. Upon completion of the hand pump installation, disinfect well according to AWWA A100 and AWWA C654.

Disinfect well with a solution equal to 100 ppm chlorine, after mixing with the water in the well.

Introduction of Chlorine Solution to the Well: The method of introducing the chlorine into the well shall be one of the following as recommended by AWWA C654 and approved by the Contracting Officer:

a. Calcium Hypochlorite: Dribble tablets of approximately 5-gram size down the casing vent and wait at least 30 minutes for the tablets to fall through the water and dissolve.

b. Sodium Hypochlorite: Suspend a tube through the well casing vent so that it reaches the bottom of the well. Withdraw the tube as the sodium hypochlorite solution is pumped through the tube.

The water in the well must be agitated to mix the solution thoroughly. Surfaces of all components above the water level must be flushed or washed down with the sterilizing solution.

The chlorine solution shall remain undisturbed in the well for a period of a least 12 hours, but not more than 24 hours.

Removing Disinfection Solution from the Well: After disinfection, the well shall be pumped for a minimum of 15 minutes beyond the time that a zero chlorine residual is first detected by the Contractor.

END OF SECTION 221122

SEPTEMBER 2008

SECTION 312000 - EARTHWORK

PART 22 - GENERAL

22.1 SUMMARY

A. This Section includes the following:

Preparing subgrades for concrete pads.

22.2 DEFINITIONS

A. Backfill: Soil materials used to fill an excavation.

B. Borrow or Select Borrow: Satisfactory soil material used for embankment, backfill, or fill construction that is either imported from off-site or excavated from designated locations at the site.

C. Excavation: Removal of material encountered above subgrade elevations and to lines and dimensions indicated.

Additional Excavation: Excavation below subgrade elevations or beyond indicated lines and dimensions as directed by Contracting Officer. Additional excavation and replacement material will be paid for according to Contract provisions for changes in the Work.

Unauthorized Excavation: Excavation below subgrade elevations or beyond indicated lines and dimensions without direction of the Contracting Officer. Unauthorized excavation, as well as remedial work directed by Contracting Officer, shall be without additional compensation.

Unclassified Excavation: Excavation to subgrade elevation and to lines and dimensions indicated regardless of the character of surface and subsurface conditions encountered, including rock, soil materials, and obstructions.

D. Fill: Soil materials used to raise existing grades.

E. Structures: Buildings, footings, foundations, retaining walls, slabs, tanks, curbs, mechanical and electrical appurtenances, or other man-made stationary features constructed above or below the ground surface.

F. Subgrade: Surface or elevation remaining after completing excavation, or top surface of a fill or backfill immediately below subbase, aggregate base, drainage fill, initial or subsequent backfill, or topsoil materials.

G. Utilities include on-site underground pipes, conduits, ducts, and cables, as well as underground services within building.

22.3 MEASUREMENT AND PAYMENT

A. There will be no separate measurement or payment for work in this Section. Payment will be included in the contract unit price as shown on the Schedule of Items.

PART 23 - PRODUCTS

23.1 BACKFILL MATERIALS, GENERAL

A. Excavated material may be processed and used for backfill if the Contractor can show compliance with the material specified herein to the satisfaction of the Contracting Officer. If excavated material is not sufficient to meet requirements, Contractor shall import needed material.

B. Backfill and Fill: Satisfactory soil materials.

Remove rocks over 8 inches in maximum dimension, ice or frozen earth, muck, debris, and earth with high void content.

Remove rocks over 4 inches in maximum dimension for backfill placed within 12 inches of foundation.

PART 24 - EXECUTION

24.1 LOCATION, ALIGNMENT AND GRADE

A. The location of all structures shall be staked out and grades established by the Contractor. Locations shall be approved by the Contracting Officer before excavation is started.

24.2 PREPARATION

A. Protect structures, utilities, sidewalks, pavements, and other facilities from damage caused by settlement, lateral movement, undermining, washout and other hazards created by earthwork operations.

B. Protect subgrades and foundation soils against freezing temperatures or frost. Provide protective insulating materials as necessary.

C. Provide erosion-control measures to prevent erosion or displacement of soils and discharge of soil-bearing water runoff or airborne dust to adjacent properties and walkways.

24.3 DEWATERING

A. Prevent surface water and ground water from entering excavations, from ponding on prepared subgrades, and from flooding Project site and surrounding area.

B. Protect subgrades from softening, undermining, washout, and damage by rain or water accumulation.

Reroute surface water runoff away from excavated areas. Do not allow water to accumulate in excavations. Do not use excavated trenches as temporary drainage ditches.

Install a dewatering system to keep subgrades dry and convey ground water away from excavations. Maintain until dewatering is no longer required.

24.4 EXCAVATION

A. Excavate to indicated elevations and dimensions. Extend excavations a sufficient distance from structures for placing and removing concrete formwork.

B. All surfaces shall be restored to the required grade (usually original ground line), mounded over or smoothed off as directed, and left in a uniform and neat condition, to the satisfaction of the Contracting Officer. Uniformly grade areas to a smooth surface, free from irregular surface changes. Provide a smooth transition between adjacent existing grades and new grades.

END OF SECTION 312000

JUNE 2009

SECTION 332100 – WELL ABANDONMENT

PART 25 - GENERAL

25.1 SUMMARY

A. This Section includes the following:

Abandoning existing wells. This includes the removal and disposal of concrete pads, existing hand pumps, and all site improvements at abandoned well locations.

B. Related Sections include the following:

Section 024101 “Demolition.”

Section 312000 “Earthwork.”

25.2 PERFORMANCE REQUIREMENTS

A. Wells must be abandoned as required by Idaho Department of Water Resources regulations.

IDAPA 37.03.09 Well Construction Standards Rules states: “No person is allowed to decommission a well in Idaho without first obtaining a driller’s license or receiving a waiver of the license requirement from the Director of the Department of Water Resources.”

25.3 SUBMITTALS

A. Documents:

An application for “Authorization to Abandon a Well” must be submitted to Idaho Dept. of Water Resources for each well at least 72 hours prior to proposed date of abandonment. A copy of this form shall be submitted to the Contracting Officer.

Abandonment Report suitable for submission to the Idaho Dept. of Water Resources shall be provided to the Contracting Officer upon completion of abandonment.

25.4 MEASUREMENT AND PAYMENT

A. Payment be for Each abandoned well, including excavation, backfill, cutting well casing, grout seal, concrete pad removal and all work within 10 feet of the well to be abandoned.

PART 26 - PRODUCTS

26.1 GROUT

A. Grouting Materials: A minimum of 50% extra material must be on site before beginning grouting operations.

B. Bentonite Grout: NSF 60.

Sizing: 3/8-inch chips

Bulk Density: 68 lb/ft^3

Moisture Content: 15% +/- 2

Permeability: 1 x 10^-9 cm/sec

Pouring Rate: 1-1/2 to 2 minutes per bag (to avoid bridging), or as recommended by the manufacturer.

Model: Enviroplug Medium Bentonite Chips, as manufactured by Wyo-Ben, Inc. or an approved equal.

C. Water: Potable

PART 27 - EXECUTION

A. Abandonment of Existing Well

Abandon wells listed on the drawings.

Comply with AWWA A100 and well-abandonment procedures of authorities having jurisdiction. The well shall be filled with bentonite grout to protect the water-bearing formations against possible contamination.

Remove all existing plumbing, pipe, electrical lines and all other removable items. Cut and remove existing casing to a depth of 2 feet below finished grade. Fill and seal entire well (casing, screens, and all other voids) with bentonite grout. Remove concrete pad and any other improvements associated with the well site. Restore ground surface to finished grade. Backfill shall be compacted with 3 passes of a mechanical compactor.

27.2 CLEANUP

A. Remove and dispose of excavated material and construction debris according to Section 024101 “Demolition.”

B. Leave site in as near a natural condition as possible.

END OF SECTION 332100

SECTION 332101 – WELL CASING

PART 28 - GENERAL

28.1 This item shall consist of furnishing and installing all well casing required to properly case the well in accordance with these specifications, cased to the depth and of the diameter specified in the Schedule of Items. This item will include the extension of existing well casing above grade.

28.2 Method of Measurement-

A. PVC Well Casing- The lineal feet of permanent casing of each size measured to the nearest ½ foot without allowance for lap at joints. Packers, bentonite seal and centralizers are considered incidental to this item.

B. Pre-perforated PVC Well Casing- The lineal feet of preperforated well casing for each size measured to the nearest ½ foot without allowance for lap joints.

C. Steel Well Casing Extension- The extension of well casing above grade shall be paid as Each and shall include the casing, welding, painting, and related work.

D. Related Sections include the following:

Section 024101 “Demolition” Section 099100 “Painting” Section 221122 “Hand Pump”

E. All work must comply with the following:

AWWA A100- Standard for Water Wells

AWWA C206- Standard for Field Welding of Steel Water Pipe

PART 29 - PRODUCTS

29.1 WELL CASINGS

A. Steel Casing: Pipe used for permanent casing in the well shall be of new material and be electric resistance-welded or seamless steel pipe. Pipe shall conform to ASTM A53, Grade B or AWWA C200, single ply, steel pipe with threaded ends and threaded couplings for threaded joints. Steel casing 6-inch and larger diameter may be beveled plain end steel casing with welded joints. Steel casing shall have the diameter, minimum weight and wall thickness shown in Table 332100.1.

Threaded Ends: ANSI B1.20.1.

Table 332100.1

STEEL PIPE FOR WELL CASING

Nominal

Size (inches)

B. PVC Casing: PVC casing shall be type 1, grade 1, 1120 PVC pipe meeting ASTM F480, ANSI/NSF 14 and ANSI/NSF 61. The minimum wall thickness shall be Schedule 40 or SDR 21, whichever is greater. End fittings shall be double entry stub ACME flush screw threads.

C. Pre-Perforated PVC Casing

Perforated by pipe manufacturer.

Perforation Width: 1/8” to 1/4”.

Perforation Length: 2-3/4” to 3”.

D. Centralizers:

Frequency: Install one centralizer 2 feet below top of “liner” casing and then at 60-foot intervals.

Description: stainless steel, as manufactured by Johnson Screens, or an approved equal.

PART 30 - INSTALLATION

A. Well Casing- The contractor shall furnish and install new PVC well casing of the size shown in the Schedule of Items and as shown on the drawings. The Contractor shall place an impervious bentonite grout seal between the new PVC casing and the existing steel casing in a manner satisfactory to the Contracting Officer and in accordance with Idaho Dept. Of Water Quality Regulations. All casing and couplings shall be new. All joints shall be watertight.

B. Steel Well Casing Extension- Perform the work as shown on the drawings. Weld steel casing in accordance with AWWA C206, penetrate full thickness of pipe.

C. At all times during the work the Contractor shall protect the well to prevent tampering with the well or the entrance of foreign matter into it.

END OF SECTION 332101

SECTION 332102 – WELL TESTING

PART 31 - GENERAL

31.1 This item shall consist of bacteriological testing of the well upon completion of construction to ensure that contamination has not occurred.

31.2 Method of Measurement- There will be no separate payment for this item. Payment will be included in the price for Item 221122 “Hand Pump and Installation”. Payment will only be made for initial testing. Repeat testing due to contamination will occur at the Contractor’s expense.

PART 32 - PRODUCTS

32.1 Disinfection Chemicals- All chemicals used to disinfect the well shall meet…