ATTACHMENTS
Attachment 1 - Water System Details
[Ord. No. 1429 §1(1), 5-6-2003]
A. 
All applicable work shall be done in accordance with these specifications for materials and construction methods to be utilized by the contractor and shall be considered minimum requirements.
B. 
References in abbreviation form to standards and other specifications whenever used in these documents shall mean the following:
AWWA — American Water Works Association
ASTM — American Society for Testing Materials
AASHO — American Association of State Highway Officials
ANSI — American Standards Institute
STATE HIGHWAY SPECIFICATIONS — Missouri Standard Specifications for Highway Construction, Missouri Department of Transportation
C. 
The "District" is the Greene County Public Water Supply District No. 5. The "Engineer" is the design engineer registered as a professional engineer in the State of Missouri.
[Ord. No. 1429 §1(2), 5-6-2003]
These specifications shall apply to the installation of all pipe, fittings, valves, hydrants, service and meters included in the water distribution system. Specific materials to be used shall be set forth on the plans.
[Ord. No. 1429 §1(3), 5-6-2003]
A. 
All work by the contractor in public thoroughfares shall conform to the specifications and requirements of the authority having jurisdiction (e.g., State Highway Department, County Court, Special Road District, District, etc.). Any method or manner of work of the contractor resulting in conditions unsatisfactory to the governing authority shall be discontinued and the contractor shall immediately commence work in an approved manner to correct any conditions of the work in progress so disapproved. Excavations across streets or in street intersections shall be made to keep one (1) lane open to traffic at all times, if possible, and he/she shall notify and make arrangements with the proper authority in advance.
B. 
The contractor shall maintain proper and sufficient barricades, lights and warnings on and near trenches and obstructions to safeguard against injury and damage. The contractor shall promptly backfill or satisfactorily barricade any open ditch which is an unnecessary hazard.
C. 
All work by the contractor shall be done in such a manner that a minimum of inconvenience will result to pedestrian and vehicular traffic and to occupants of property along the routes of the mains and lines to be laid, and the contractor shall, in all respects, use his/her best efforts to preserve, maintain, and foster good will and amiable relations with all residents and property owners along the route of such water mains and lines.
[Ord. No. 1429 §1(4), 5-6-2003]
The contractor will make tie-ins and/or taps onto existing live water mains under the supervision of the district using approved equipment and materials. The contractor shall not operate any valves, fire hydrants, blow offs, or similar equipment on the existing water system of the utility. The district will arrange for personnel for valve operation as required. If it should be necessary for the water supply of any customer to be turned off, it shall be done only with the approval of the district, and it shall be the responsibility of the contractor to notify all customers to be affected at least twenty-four (24) hours in advance of such and the anticipated duration thereof. If it is not practical or advisable to have the water off in the existing system for such purpose during regular working hours, the contractor shall schedule such work, on overtime if necessary, at a time approved by the district.
[Ord. No. 1429 §1(5), 5-6-2003]
A. 
The engineer will establish the construction limits and will designate all existing structures above the ground, trees, shrubs, and plants that are to remain. The contractor shall preserve without damage these items throughout the construction period. Minimum clearing is required.
B. 
Trees, stumps, brush and hedge within the construction limits that are not designated to remain shall be cleared and grubbed only to the extent required for the installation, with debris completely removed from the site and disposed of by the contractor.
C. 
Existing structures, including, but not limited to, pavement, curbs, sidewalks floors and similar objects where portions of these objects are to be left in place, shall be removed to an existing joint or a new joint sawed to a minimum of one (1) inch with a true line and vertical face. Sufficient portions of such objects shall be removed to at least six (6) inches behind the trench width. The debris resulting shall be removed from the site and disposed of by the contractor.
[Ord. No. 1429 §1(6), 5-6-2003]
A. 
All pipe, fittings, valves, hydrants and accessories shall be loaded and unloaded by lifting with hoists or skidding to avoid shock or damage. Under no circumstances shall such materials be dropped. Pipe handled on skidways shall not be skidded or rolled against pipe already on the ground.
B. 
All materials received at the job site shall be carefully inspected for damage in transit. Damaged materials shall be so marked and removed from the site as soon as possible.
[Ord. No. 1429 §1(7), 5-6-2003]
A. 
All materials and equipment used in the construction project shall be so placed so that they will not injure the public or private property and also all fire hydrants, fire and police alarms, mailboxes, water valves, and other utility and sewer manhole and vault covers in the vicinity shall be freely accessible at all times. All pipe shall be loaded, hauled, unloaded and distributed in such manner as to not injure or damage the pipe or the coating thereon. In hauling pipe, each length must be protected by pads from contact with the truck. Slings of canvas, leather or other materials acceptable to the engineer may be used in the handling of the pipe, but chains, cable and rope shall not be used in any manner to contact and injure the coating.
B. 
In case of injury to the protective coating or lining on the materials, the contractor shall repair at his/her expense such injury and shall replace the coating or lining so that the coating or lining shall be in as good condition as it was prior to injury. The engineer will determine if replacement is required.
C. 
Distribution of materials shall be kept to a minimum ahead of construction. Pipe placed along the route shall be a maximum of that anticipated for two (2) working days' need. Placement shall be such that the pipe cannot be contaminated with surface water, dirt, other materials. Pipe shall not be laid in ditches. Valves, fittings, hydrants shall be distributed a maximum of one (1) day ahead of their anticipated installation.
[Ord. No. 1429 §1(8), 5-6-2003]
A. 
The water main shall be laid and maintained to the required lines and grades with fittings, valves, and hydrants at the required locations; spigots centered in bells; and all valves and hydrant stems plumb. Wherever obstructions not shown on the plans are encountered during the progress of the work and interfere to such an extent that an alteration in the plan is required, the engineer shall have the authority to change the plans and order a deviation from the line and grade or arrange with the owners of the structures for the removal, relocation, or reconstruction of the obstructions. The trench shall be so braced and drained that the workmen may work therein safely and efficiently. It is essential that the discharge of the trench dewatering pumps be conducted to natural drainage channels, drains or storm sewers.
B. 
The contractor shall comply with all laws regarding the construction activities including the notification of all other utility companies through the appropriate statewide notification system.
[Ord. No. 1429 §1(9), 5-6-2003]
A. 
The width of the trench shall be ample to permit the pipe to be laid and jointed properly, and the backfill to be placed and compacted as specified. Trenches shall be of such extra width, when required, to permit the convenient placing of timber supports, sheeting and handling of specials. The width in solid rock shall be such that future repairs can be made to the pipe without solid rock removal. A minimum width shall be fourteen (14) inches, or the pipe diameter plus eight (8) inches except in rock where twelve (12) inches plus the pipe diameter is required.
B. 
The trench shall be excavated to a depth required to provide a uniform and continuous bearing for the pipe bedding and pipe. A minimum pipe cover of three and one-half (3½) feet shall be provided except at specific locations and corresponding depths shown on the detailed plans. Any part of the trench bottom which is over excavated shall be backfilled with bedding rock to insure consistent bearing for the pipe. The finished subgrade and resulting bedding grade shall have a uniform grade and width to allow proper placement of the pipe. Changes in alignment in either the vertical or horizontal plane where bends are not required shall be made by beginning the trench transition such that a smooth curve is obtained which will allow the pipe to be installed without placing the pipe in a stressed condition or exceeding the pipe joint allowed deflection angle. The contractor shall notify the engineer when he/she feels the change in alignment requires a fitting rather than deflection of the pipe at the joints. Where the bottom of trench at subgrade is found to be unstable or to include ashes, cinders, all types of refuse, vegetable or other organic materials, or large pieces of fragments of inorganic materials which, in the judgment of the engineer, should be removed, the contractor shall excavate and remove such unsuitable material to a depth of two (2) feet below the subgrade at full trench width. Before the embedment material is placed, the subgrade shall be made by backfilling with bedding rock material.
C. 
Subgrade In Rock Trenches. Where excavation is made in rock, the clearance shall be six (6) inches minimum below the pipe.
D. 
Subgrade In Earth Trenches. Where excavation is in earth, the clearance shall be four (4) inches below the pipe.
E. 
The contractor may remove and separate the top soil or elect to obtain the required topsoil from another source for use in restoration.
[Ord. No. 1429 §1(10), 5-6-2003]
A. 
"Solid rock" shall be defined as such material that cannot be excavated without drilling and blasting, wedging, sledging or barring. Stones, boulders, or underground concrete segments ten (10) cubic feet in volume or greater shall be classified as solid rock.
B. 
Whenever rock is encountered in the trench and excavation is required to be made, the contractor shall excavate the same using methods generally accepted by the construction industry for the specific site. Where drilling and blasting is used, the contractor shall provide proof of proper blasting insurance in effect at the time of the work.
[Ord. No. 1429 §1(11), 5-6-2003]
A. 
The barrel of the pipe shall be supported by clean, crushed rock bedding material with a minimum thickness of four (4) inches. The contractor shall then embed the pipe with bedding stone to a point at least six (6) inches over the top of the pipe.
B. 
All bedding stone material used shall have the following gradation:
Percent Passing
Sieve Size
100
1 inch
95 — 100
½ inch
0 — 5
No. 4
Material shall not have a loss of more than fifteen percent (15%) after five (5) cycles when tested for soundness with sodium sulfate as described in Federal Specifications SS-R-406C "Road and Paving Material, Methods of Sampling and Testing, Method 203.01".
[Ord. No. 1429 §1(12), 5-6-2003]
Proper implements, tools, and facilities satisfactory to the engineer shall be provided and used by the contractor for the safe and convenient prosecution of the work. All pipe fittings, valves, and hydrants shall be carefully lowered into the trench piece by piece by means of a derrick, ropes or other suitable tools or equipment in such manner as to prevent damage to water main materials and protective coatings and linings. Under no circumstances shall water materials be dropped into the trench.
[Ord. No. 1429 §1(13), 5-6-2003]
A. 
Pipe shall be laid with bell ends facing in the direction of laying unless directed otherwise by the engineer. Every precaution shall be taken to prevent foreign material from entering the pipe while it is being placed in the line. If the pipe laying crew cannot put the pipe into the trench and in place without getting earth into it, the district will require that before lowering the pipe into the trench, a heavy, tightly woven canvas bag of suitable size shall be placed over each end and left there until the connection is to be made to the adjacent pipe. During laying operations, no debris, tools, clothing or other materials shall be placed in the pipe.
B. 
After placing a length of pipe in the trench, the spigot end shall be centered in the bell and the pipe forced home and brought to correct line and grade. The pipe shall be secured in place with approved embedment material tamped under it. Pipe and fittings which do not allow a sufficient and uniform space for joints shall be removed and replaced with pipe and fittings of proper dimensions to insure such uniform space. Precautions shall be taken to prevent dirt from entering the joint space. A suitable wood blocking shall be used to force the joint together using a pry bar. Using a backhoe bucket shall not be allowed to join the pipe.
C. 
The contractor shall install a "locator" wire in the trench adjacent to the pipe. The wire shall be a No. 12, either bare copper or insulated copper. Twist splices shall be used to form a continuous wire. The wire shall be looped along the lead to each fire hydrant and exposed at the hydrant traffic flange.
D. 
At the conclusion of each day's work or any other significant delay in the pipe installation, a slip joint cap shall be placed on the end of the pipe. If ground water or threat of rain is expected, the end of the pipe shall be supported in a manner that water cannot enter the pipe at the cap unless the cap has a water-tight joint.
[Ord. No. 1429 §1(14), 5-6-2003]
A. 
The cutting of a pipe for inserting valves, fittings, or closure pieces shall be done in a neat, workmanlike and approved manner without damage to the pipe or cement lining and so as to leave a smooth end at right angles to the axis of the pipe.
B. 
The cutting of pipe shall be by means approved by the pipe manufacturer and shall result in a smooth, square pipe end with proper taper for the joint system.
[Ord. No. 1429 §1(15), 5-6-2003]
Wherever it is necessary to deflect pipe from a straight line, either in the vertical or horizontal plane to avoid obstructions or plumb stems, or where long radius curves are permitted, the amount of deflection allowed shall not exceed that required for satisfactory jointing of the joint, and shall be approved by the engineer and manufacturer's recommendations.
[Ord. No. 1429 §1(16), 5-6-2003]
A. 
Valves, fittings, plugs and caps shall be set and jointed to pipe in the manner heretofore specified for cleaning, laying and jointing pipes. Valves in water mains shall, where possible, be located on the street property lines extended unless shown otherwise on the plans. A valve box shall be provided for every valve which has no gearing or operating mechanism or in which the gearing or operating mechanism is fully protected with a cast iron grease case. The valve box shall not transmit shock or stress to the valve and shall be centered and plumb over the wrench nut of the valve, with the box cover flush with the surface of the finished pavement or such other level as may be directed by the engineer.
B. 
Valves shall be set on bedding stone material. Valves four (4) inches and larger shall be anchored by placing concrete on each side of the valve and tied down by two (2) No. 4 rebars over the top of the valve and set in the concrete.
[Ord. No. 1429 §1(17), 5-6-2003]
All dead ends on new mains shall be closed with plugs or caps, with or without a blow off, as shown on the drawings.
[Ord. No. 1429 §1(18), 5-6-2003]
A. 
All plugs, caps, tees and bends deflecting horizontally eleven and one-fourth degrees (11¼°) or more on mains two (2) inches in diameter or larger shall be provided with a reaction backing so movement shall be prevented under operating pressure conditions.
B. 
All bends vertically shall be anchored and tied down to concrete placed to each side of the fitting using two (2) No. 4 rebars. The trench shall be widened to allow placement of concrete on each side of the fitting which provides a minimum surface area of four (4) feet squared and one-third (1/3) cubic yard of concrete to each side of the fitting.
C. 
Reaction backing shall be concrete having a compressive strength of not less than two thousand five hundred (2,500) psi at twenty-eight (28) days. Backing shall be placed between solid ground and the fitting to be anchored; the area of bearing on the pipe and on the ground in each instance shall be that shown or directed by the engineer. The backing shall, unless otherwise shown or directed, be so placed that the pipe and fitting joints will be accessible for repair. When, in the opinion of the engineer, the concrete used for reaction backing is of questionable strength, the contractor shall be required to have tests performed (two (2) from any one (1) batch) for the purpose of determining if the above requirement has been met. In the event that said backing is found to be substandard, the contractor shall be required to remove and replace the backing with proper materials.
[Ord. No. 1429 §1(19), 5-6-2003]
A. 
Fire hydrants shall be furnished and installed by the contractor as called for on the plans. Fire hydrants shall be installed plumb with pump nozzle toward the street or pointed as directed by the district. Bury line of fire hydrant shall coincide within three (3) inches with finished grade or hydrant shall be replaced with a shorter hydrant or increased in height by addition of an extension as required. Field painting or repainting as provided in materials specifications is required before acceptance. They shall be covered with a secured burlap sack until main is in service.
B. 
A drainage pit two (2) feet by two (2) feet and two (2) feet below the bottom of the hydrants shall be excavated and then refilled completely with coarse gravel or broken stoned properly placed under and around the bowl of the hydrants and up to a level of six (6) inches above the waste opening. Each hydrant shall be set on a flat precast concrete slab sixteen (16) inches by sixteen (16) inches by four (4) inches and the hydrant, when set, shall be plumb and well braced against unexcavated earth at the end of the trench with concrete reaction backing.
[Ord. No. 1429 §1(20), 5-6-2003]
A. 
Complete trench backfill shall occur promptly after the pipe, bedding, and embedment have been completed. Prompt backfilling behind trench excavation and pipe laying operation shall take place. Length of an open trench shall not exceed one hundred fifty (150) feet. Intersecting streets shall be open to traffic at end of workday. At the end of each day's work, the trench shall be backfilled to a distance of ten (10) feet from the end of the pipe. Barricades around open trenches shall be provided when work is not underway.
B. 
Backfill over backing blocks or anchoring shall occur when concrete has attained one (1) day strength.
C. 
Backfill above the pipe embedment shall be with suitable materials excavated from trench and processed as required, or borrowed from locations arranged for by contractor. Material shall be free from organic matter, refuse, ashes, cinders or other unsuitable material, and shall not be frozen. Material shall be free from gravel, stone or shale particles greater in any dimension than one-half (½) the depth of layer to be compacted or six (6) inches. Backfill material shall contain sufficient fines to provide a dense mass capable of being compacted. Backfilling shall be done in a manner such that materials are placed at an angle to the trench. Right angle ninety degrees (90°) to the trench backfilling should not be done. Forty-five degree (45°) angle backfilling should provide a sloping fill face to minimize damage to the pipe and obtain a better compaction.
D. 
Backfill materials placed under road beds, roadway crossings, paved parking lots, and paved drives shall be crushed stone for the entire depth of trench.
E. 
Compact materials at or near optimum moisture content as determined by the engineer. Compact with equipment and by methods which will prevent settlement and obtain the specified density. Density of compacted backfill materials shall be as follows:
1. 
Embedment material — ninety-five percent (95%). Accomplish by spading, rodding and foot traffic to an approved condition. No testing is necessary.
2. 
Material above the embedment material when trench is under paved roadways or driveways, ninety-five percent (95%) — minimum compact to prevent future settlement as determined by the engineer.
3. 
Material above the embedment, eighty-five percent (85%) minimum prevent future settlement.
Maximum density shall be determined by the AASHO Standard Methods.
F. 
Trenches under existing concrete or asphalt paved roadway crossings, parking lots, and driveways shall be backfilled as specified above to within two (2) inches of the original surface. Where high traffic volume and speed do not allow base rock to be used as a temporary surface, fill final two (2) inches with an approved cold-mix asphalt to permit traffic for the intervening period between backfilling and pavement replacement. Trenches under low type bituminous surface or gravel roadways shall be backfilled and the surface repaired with gravel until final repairs are made. Maintain surface as necessary until final acceptance. Maintain backfilled trenches not in paved area as required and directed. All trench settlements shall be corrected prior to acceptance and through the guarantee period.
G. 
Trench lines on easements and vegetated areas shall be graded smooth immediately after backfilling. Excess materials from the excavating, clearing, etc., shall be removed, except for a reasonable window of select backfill material left to one (1) side of the trench. Following sufficient weathering and trench settlement, any excess material shall be removed prior to final grading and seeding. Areas subject to erosion shall be graded smooth and seeded and mulched within seven (7) days of backfilling.
[Ord. No. 1429 §1(21), 5-6-2003]
A. 
Before applying the specified test pressure, all air shall be expelled from the pipe. If hydrants or blow offs are not available at high places, the contractor shall make the necessary taps at points of highest elevation before the test has been completed. Saddles and corporation stops shall be used at these high points and left in place.
B. 
Any cracked or defective pipes, fittings, valves, or hydrants discovered in the consequence of this pressure test shall be removed and replaced by the contractor with sound material in a manner satisfactory to the engineer and the test repeated. Test pressure is to be held for a period of not less than two (2) hours.
C. 
Test pressure shall be as determined by the following formula:
P =
(TOE - GE) x 1.50
         2.31
P =
Testing pressure in psi at elevation of gauge with minimum 150 psi.
TOE =
Tank overflow elevation of 1,430 feet
GE =
Elevation at centerline of gauge
D. 
No water main or section thereof will be accepted if and while it has a leakage rate in excess of that determined by the following formula:
L =
ND (P)½ in which
       7400
L =
Maximum permissible leakage in gallons per hour
N =
Number of pipe joints in the line under test
D =
Nominal internal diameter of the water main being tested in inches
P =
Average actual pressure in psig in the water main
Perform test by holding pressure for two (2) hours and measuring the amount of water lost by use of meters or other methods approved by engineer. Tests are to be made with the engineer present.
E. 
If test indicates leakage greater than that specified, the defective pipe, joint, or joints shall be located and repaired, with tests run again after correction is made to pipe.
F. 
Contractor is to furnish all necessary labor, materials and equipment for testing and shall stand the expense of water wasted through testing. Each line segment between main line valves shall be tested.
G. 
All pipe, fittings, valves, hydrants, service connections shall be tested.
[Ord. No. 1429 §1(22), 5-6-2003]
A. 
The contractor shall perform the disinfection of water mains. The method which shall be directed by the engineer will be performed in accordance with AWWA C651 (latest edition). All cost in connection with the disinfecting operation shall be at the expense of the contractor.
B. 
Perform disinfecting operations after hydrostatic tests have been completed and separately on segments of the lines between isolation valves. Disinfecting shall not be performed until all line segments are ready for disinfecting, including successful pressure and leakage testing and the lines sufficiently flushed to remove all mud, dirt and other debris.
C. 
Applied chlorine shall be in the form of liquid chlorine gas-water mixture or high-test calcium hypochlorite (sixty-five percent (65%) Cl). High-test calcium hypochlorite shall first be made into a paste and then thinned to approximately a one percent (1%) chlorine solution, which requires one (1) pound of compound mixed with eight (8.0) gallons of water.
D. 
Application of chlorinating agent shall be at the beginning of the segment being tested through a corporation stop inserted for the purpose. Apply at rate of approximately twenty-five (25) ppm or as required to produce ten (10) ppm after twenty-four (24) hours standing.
E. 
The contractor shall perform all flushing and sampling required to put the mains and runs into service by the methods allowed. Filling velocities shall not exceed one (1) foot per second. Samples for bacteriological testing shall be delivered to the Missouri Division of Health Laboratory for analysis. Two (2) consecutive sets of acceptable samples, taken at least twenty-four (24) hours apart, shall be collected from the main. At least one (1) set of samples shall be collected from every one thousand two hundred (1,200) feet of new main, plus one (1) set from the end of the line and at least one (1) set from each branch. Samples shall be collected from a corp stop and copper-tube gooseneck assembly.
F. 
No usage of water from a new main for any purpose shall occur until disinfection is completed and accepted.
G. 
Treated water shall be retained in the pipe long enough to destroy all non-spore forming bacteria. This period shall be at least twenty-four (24) hours and shall produce no less than ten (10) ppm at the end of the line segment. The contractor shall provide a suitable test kit to check the chlorination concentration.
H. 
Sample cock assemblies shall be furnished, installed and removed by the contractor at the end of the main segment to be disinfected and approved by the district. The corporation cock will be removed and replaced by a brass plug. A temporary blow off shall be provided at the end of the main being sterilized to provide a means of flushing if a hydrant is not available. Upon completion of the sterilization process, the blow off shall also be removed. Sampling from a hydrant will not be allowed.
I. 
Following disinfection, flush treated water from line at all extremities until replacement water is tested to be of comparable quality to that in existing mains. The district will fill the main the first (1st) time for this particular test; any subsequent filling of main will be at the contractor's sole cost for water used at regular rates. Tests for quality shall be taken at least two (2) days after flushing. Should initial treatment fail to result in conditions specified, the contractor shall repeat original chlorination procedure until satisfactory results are obtained.
[Ord. No. 1429 §1(23), 5-6-2003]
All blasting is performed at the contractor's sole risk. The contractor is solely responsible for any and all damages caused by blasting to any adjacent structure or any other underground facility. Extreme care should be exercised when paralleling or crossing other underground facilities.
[Ord. No. 1429 §1(24), 5-6-2003]
A. 
The contractor shall make boring and casing crossings where shown on the plans. The contractor shall pay fees and obtain permits for the crossings and shall comply with all requirements of the Highway Department crossed. The contractor shall furnish all pipe, pipe encasement, boring equipment, timbering, shoring, bracing, rock excavation and other labor materials required and shall receive no additional payment for extra items involved. Casing pipe and carrier pipe shall be installed in accordance with the Highway Department.
B. 
Casing pipe and joints shall be constructed from new steel having a minimum yield strength of thirty-five thousand (35,000) psi. Joints shall be leakproofed by welding. Pipes under highway crossing shall have the following wall thickness: Sixteen (16) inches and under, one hundred eighty-eight thousandths (0.188) inches; eighteen (18) inches, twenty (20) inches and twenty-two (22) inches, two hundred fifty thousandths (0.250) inches.
C. 
Casing Pipe Installation. Casing pipe shall be jacked or installed in an auger-bored hole to the line and grade required by the plans. Holes two (2) inches in diameter larger than the casing shall be filled with cement grout or sand.
D. 
Carrier Pipe Installation. The carrier pipe shall be placed in the casing using temporary wood shims and then filled with sand for permanent support under the pipe. Complete filling of casing with sand is not required. Manufactured fourteen (14) gauge S.S. band and high density polymer runner casing spacers, three (3) per pipe section or a ten (10) foot maximum spacing, may be used in place of the wood shim, sand, and concrete. Concrete cradle shall be placed with the pipe where it enters and leaves the casing. Bore pits shall be backfilled with crushed rock up to the bottom of the pipe to provide a firm support and prevent settlement and damage to the pipe.
[Ord. No. 1429 §1(25), 5-6-2003]
A. 
Extreme care shall be taken in crossing or paralleling water, sewer, gas, and other utility lines. If solid rock is encountered in such areas, no explosives shall be used unless permission to use light loading in a specified manner is given in advance by the engineer. If the contractor elects to proceed in the above manner, he/she shall do so at his/her sole risk and responsibility and should any damage occur to such lines, contractor shall be fully liable and shall pay full cost of repairing same.
B. 
The contractor shall fully comply with all rules and regulations as set by the Missouri Department of Natural Resources when crossing or paralleling existing sewers including:
1. 
Water mains shall have at least ten (10) feet horizontally separation from any existing or proposed sewer. In cases where it is not practical to maintain a ten (10) foot separation, the engineer may allow deviation on a case-by-case basis. Such deviation may allow installation of the water main closer to a sewer, provided that the water main is laid in a separate trench or on an undisturbed earth shelf located on one (1) side of the sewer and, in either case, at such an elevation that the bottom of the water main is at least eighteen (18) inches above the top of the sewer.
2. 
Water mains crossing sewers shall be laid to provide a minimum vertical clear distance of eighteen (18) inches between the outside of the water main and the outside of the sewer. This shall be the case where the water main is either above or below the sewer. At crossings, the full length of water pipe shall be located so both joints will be as far from the sewer as possible. Special structural support for the water and sewer pipes may be required.
C. 
The contractor shall notify all utility companies of the proposed work and make the necessary arrangements for the marking of all parallel or crossing of adjoining utilities. The minimum notification shall be through the Missouri One Call system.
[Ord. No. 1429 §1(26), 5-6-2003]
A. 
Before proceeding with construction operations, contractor shall furnish and install suitable, substantial gate or gap in every fence at intersection with right-of-way for access to land crossed by pipeline and for passage of construction equipment. Fences shall be reinforced as necessary to prevent damage. If woven wire fences or chain link are encountered, they must not be cut unless contractor obtains written consent of owner and tenant and adequate arrangements are made for bracing and rebuilding. Fences shall not be cut but taken down at the corner post unless the crossing point is more than one hundred (100) feet from the corner post. Contractor will replace fences to their original location and conditions upon completion of the line segment.
B. 
Contractor shall be responsible for keeping gates closed at all times during performance of work, shall prevent livestock from entering or leaving properties, and shall furnish watchmen, if necessary, at contractor's expense to enforce compliance with this instruction. Contractor shall be responsible for any damage to or caused by livestock entering or leaving property through open gates or slack fence caused by improperly installed gate.
C. 
Fence repairs shall be in a workman like manner including the use of fence splices designed for the repairs to be made. Fences taken down by the contractor which are not suitable for replacement shall be replaced with new materials.
[Ord. No. 1429 §1(27), 5-6-2003]
A. 
All disturbed lawn, pastures, and other non-paved grass areas shall be graded and seeded as follows:
After the trench backfill has been compacted, the excavated area shall be covered with at least two (2) inches of top soil free of rock larger than one (1) inch in largest dimension and noxious weeds or seeds. Pastures or other non-lawn type areas will not be required to have top soil added unless a stand of grass in not possible without top soil. Before final raking, areas to be seeded shall be fertilized with a mixture containing thirteen (13) pounds each of soluble nitrogen, phosphoric acid and potash per one hundred (100) pounds by spreading evenly at the rate of twelve (12) pounds per one thousand (1,000) square feet of area using a mechanical spreader of the rotary type. The area shall then be raked to a smooth even surface, the soil loosened to a depth of at least one (1) inch and seeded.
The seed mixture shall be the type of grass that exists in that vicinity. In those areas where the variety of grass cannot be determined, the seed mixture for maintained lawn areas shall be as follows and shall be evenly distributed over the area at the rate of six (6) to eight (8) pounds per one thousand (1,000) square feet using a mechanical seeder.
Variety
Mixture
Purity
Germination
Turf Type Tall Fescue
100%
95%
90%
The following seed mixture shall be used in all other areas such as fields, pastures, roadside ditches, etc., and shall be evenly distributed over the area at the rate of thirty-three (33) pounds per acre (one (1) pound per one thousand (1,000) square feet) using a mechanical seeder.
Variety
Mixture
Purity
Germination
Kentucky 31 Fescue
90%
95%
90%
Annual Rye Grass
10%
98%
90%
All seed shall be free from Johnson grass, Canadian thistle or field bindweed seed, and shall be from the previous year's seed crop.
All reseeded areas shall receive straw mulch at a rate not less than one hundred (100) pounds per one thousand (1,000) square feet.
Reseeding of disturbed areas shall be accomplished as the construction work progresses, during the next available spring or fall seeding period. Unless authorized by the engineer, no seeding shall take place from November first (1st) through April first (1st) and from June first (1st) through August fifteenth (15th).
No seeding shall be done when the ground is frozen, wet, or otherwise in a non-tillable condition.
All lawn and landscaping shrubs, bushes, and small trees that are removed during construction shall be replaced to their original conditions.
The contractor shall guarantee a stand of grass and shall protect all landscaping work against damage until completion and final acceptance of the work.
B. 
All pavement which has been removed during the course of construction or which, in the opinion of the district, has been damaged during the progress of the work shall be replaced with the same type as the original paving. The required repairs shall be made by the contractor for damage to roadways resulting from construction or the contractor's use during construction.
1. 
Prior to placing the final roadway surfacing, the top twelve (12) inches of backfill shall be further compacted to obtain at least ninety-five percent (95%) of maximum density, any loose surfacing removed, and a straight edge established by sawing the remaining surfacing twelve (12) inches back of the trench lines.
2. 
The contractor shall make the final pavement repairs. Final pavement repairs shall include adding of base material, grading and compacting of the base to obtain the specified quantities, roadway cross section and alignment prior to placing the road surfacing. The specified roadway surfacing shall be placed following approval by the district of the subgrade and base. All work and materials shall be in accordance with the latest edition of the "Missouri Standard Specifications for Highway Construction" and as noted in the plans. Final pavement repairs shall be approved by the City following testing and inspection.
[Ord. No. 1429 §1(28), 5-6-2003]
All work by the contractor shall be done in a neat, workmanlike manner, and the right-of-way and adjacent ground shall be cleared of rubbish, brush, rock, trash and excess dirt immediately after pipe is laid and backfilled. The contractor shall promptly backfill or satisfactorily barricade any open trench which is an unnecessary hazard. All surplus materials furnished by the contractor and all tools and temporary structures shall be removed from the site by the contractor. All dirt, rubbish and excess earth from the excavation shall be hauled to a dump provided by the contractor and the construction site left clean to the satisfaction of the district. When the water main segment is completed, the contractor shall restore the ground (including any prior surface preparation) and adjacent property to their condition prior to the construction project.
[Ord. No. 1429 §1(29), 5-6-2003]
The contractor shall notify the engineer and district when the construction project is ready for final inspection. Within ten (10) days after such final inspection, the engineer shall notify the contractor and district in writing of any defects or defaults in performance which may have been discovered upon such final inspection. The contractor shall remedy promptly all such defects or defaults and again notify the engineer and district when the project is ready for another inspection. This process shall continue until the project shall be accepted by the district.
[Ord. No. 1429 §1(30), 5-6-2003]
A. 
General. Only approved materials, conforming to the requirements of these specifications, shall be used in the work. They may be subjected to inspection and tests at any time during their installation or use. Prior approval of shop drawings, source of supply, and/or material samples, as may be applicable, must be obtained from the engineer before delivery or use. Representative preliminary samples of materials shall be submitted by the contractor when required for examination and tests. Materials shall be stored and handled to insure the preservation of their quality and fitness for use and shall be located to facilitate prompt inspection.
B. 
Pipe. Where the plans specify ductile iron pipe (D.I.P.), this material shall be used. Where the plans specify polyvinyl chloride pipe (PVC), this material or D.I.P. may be used.
1. 
Polyvinyl chloride pipe (PVC). The pipe shall be manufactured of Type 1, Grade 1, 2000 psi design stress compound designated as PVC 1120 and will conform to ASTM D-1784, Class 12454B compound specifications. SDR21, Class 200 shall be used as shown on proposal form for pipes one and one-half (1½) inches in diameter and larger. It shall bear the National Sanitation Foundation (NSF) seal of approval and shall conform with the requirements of ASTM D-2241. The pipe shall have one (1) end tapered for use with gasketed bell end and shall be in twenty (20) foot lengths. The bell portion of pipe to be an integral homogeneous part of the pipe for one and one-half (1½) inches and larger. The use of white PVC pipe is preferred to reduce heat generated by sun rays, thereby accommodating outside storage. Pipe other than white PVC must be stored under cover. The PVC pipe shall be sealed against leakage by means of a rubber ring seated in the pipe bell. The joint shall have a positive pipe stop that will automatically and accurately position the pipe end within the bell. The pipe stop shall also permit the thermal expansion of recontraction of the pipe. PVC pipe shall be equal to J-M, Cantex, Certainteed, Diamond, Vinyl-Plex, or approved equal. A certification of compliance shall be provided by the manufacturer.
2. 
PVC. For PVC pipe with diameter less than one and one-half (1½) inches, the pipe shall be manufactured in accordance with Subsection (B)(1) above. The pipe shall be Schedule 40 with solvent welded joints.
The solvent cement and primer shall be designed for the pipe material used. The joint shall be made following the manufacturer's recommended procedures and materials.
3. 
Ductile iron pipe (D.I.P.). All ductile iron pipe shall be manufactured per ANSI A21.51 (AWWA C151) latest revision. Minimum pressure class shall be three hundred fifty (350) psi for twelve (12) inches or less. The minimum pressure class shall be provided unless otherwise required by the detailed plans. The pipe shall be cement mortar lined with bituminous seal coat in accordance with ANSI A21.4 (AWWA C104). Pipe joints shall be push-on type with gaskets conforming to ANSI A21.11 (AWWA C111), unless otherwise required by the detailed plans. All pipe shall be marked by the manufacturer to indicate class. The pipe manufacturer shall provide a certification regarding compliance with the specifications. Nominal pipe laying lengths shall be eighteen (18) or twenty (20) feet per joint.
4. 
Water service pipe. Three-fourths (¾) inch or larger service pipe shall be used between the corp stop and meter location. Service pipe shall be Schedule 40 PVC or Type K copper.
C. 
Fittings. Where the plans specify a particular material and joint type, this shall be provided. All fittings four (4) inches and larger shall be cast or ductile iron.
1. 
Cast iron or ductile iron (noted as "MJ" on plans). Fittings shall conform to ANSI A21.53 (AWWA C153) or ANSI A21.10 (AWWA C110) for standard or compact with mechanical joint. Fittings shall have a bituminous manufacturer applied exterior coating. Fittings shall have a manufacturer applied cement mortar linings with bituminous coating. Joint gaskets shall be designed for use with the type of pipe being used. Fittings shall be complete with bolts, nuts, glands, and gaskets.
2. 
P.V.C. fittings. Unless noted otherwise, all fittings one and one-half (1½) inches and larger shall have flexible elastomeric seals (gasket) conforming to ASTM D-3139 and ASTM F477. The PVC compound shall conform to ASTM D17814. Fittings shall be designed for use with PVC pipe produced in compliance with ASTM D-2241, SDR-21, including materials dimensions and pressure rating. All fittings shall be approved and marked as to manufacturer and NSF approval. Fittings shall be equal to Harco, Head, Spears, or approved equal.
3. 
P.V.C. (1½ inches and smaller). PVC fitting shall conform to ASTM D-1784 for injection molded with compound meeting the requirements of cell classification 12454A, but modified for the production of high impact strength fittings. All materials used shall be approved for use by the National Sanitation Foundation Laboratories. All fittings shall bear the company name or trademark, material designation, size, applicable IPS schedule and the N.S.F. seal of approval. Fittings shall be heavy duty Schedule (80) conforming to ASTM D-2467 with solvent welded joint system unless otherwise noted. Threaded pieces shall be standard iron pipe thread. The solvent cement and primer shall be designed for use with Type 1 PVC. No thinner will be allowed. Joints shall be made following the recommended procedure of the manufacturer. PVC fittings shall be equal to Harco, Head, Spears, or approved equal.
D. 
Gates, Valves, Valve Box, And Miscellaneous.
1. 
Gate valves (2 inches and larger). All gate valves two (2) inches and larger shall conform to the latest specifications of AWWA C509, two hundred (200) psi rated and shall be tested to four hundred (400) psi without leakage in the factory. The valve body shall be cast iron with mechanical joint with glands and gaskets as required by the pipe material as called for on the plans. Valves shall be non-rising stem type with two (2) inch square operating nut, ("O") ring seals, thermoplastic anti-friction washer, thrust collar. Stem and stem nut shall be bronze. Space between "O" rings shall be filled with lubricant to permanently lubricate the thrust collar and "O" rings. The bronze stem nut to be cast integral with the valve disc. Valve shall open counterclockwise.
The valve shall use a modified wedge disc and a resilient rubber seat ring. The valve disc shall travel along a machined surface in the valve body with solid guide lugs on the disc. The disc shall be designed to prevent solids build-up in cavities. The seal ring shall be replaceable and mounted to the disc with stainless steel screws. The valve body shall be machined to provide a sealing surface for the resilient seat and provide drip-proof operation regardless of flow direction.
The valve interior shall be fully protected by a two (2) part thermosetting epoxy coating conforming to AWWA C550. A standard bituminous exterior coating shall be provided.
Gate valve shall be equal to Mueller, Kennedy Ken-Seat, American Series 2500, Clow, or approved equal.
2. 
Gate valve (smaller than 2 inches). All gate valves smaller than two (2) inches shall conform to Class 200 bronze ASTM B-62 with handwheel, NRS, threaded pipe connection. Valves shall open counterclockwise.
3. 
Valve box. All valves installed shall have provided and installed a cast iron valve box. Valve boxes shall be two (2) piece, screw type, with lid marked "water". Each box shall be designed for the valve bury depth. Extensions may be required for extra depth of bury. The valve box shall have a shaft inside diameter of five and one-half (5½) inches for valves four (4) inches and larger and four and one-fourth (4¼) inches inside diameter for two (2) inch valves. Valve boxes shall be bituminous coated inside and outside.
E. 
Fire Hydrants.
1. 
Three-way hydrants. Shall be cast iron body, fully bronze mounted, suitable for a working pressure of one hundred fifty (150) pounds per square inch and shall be in accordance with the latest specifications of the AWWA C502 for dry barrel hydrants. Hydrants shall have two (2) two and one-half (2½) inch and one (1) four and one-half (4½) inch for three-way hydrants (NST) hose nozzles, self-oiling dry top bonnet, safely flanged and stem, "O" ring seals, compression opening, fully painted and coated for appearance and corrosion protection. The hose nozzles shall be replaceable and threaded into the body of the hydrant. Depth of bury shall be determined by the contractor for each location with a minimum of four (4) feet. Inlet connections shall be six (6) inches as noted with mechanical joint connection complete with gland and gasket required by the type of the pipe being used. The hydrant main body valve shall be five and one-fourth (5¼) inches.
All hydrants shall have a weather shield at the top of the operating nut to protect the clearance area between the top casting and the operating nut. The operating nut shall be a one (1) piece bronze casting; both the operation nuts and nozzle caps to be a pentagon shape and measure one and one-half (1½) inches from point to flat. Caps to be provided with rubber gaskets and retaining chains. Hydrant nozzle section shall be capable of rotation through three hundred sixty degrees (360°) with respect to the standpipe.
Hydrants shall have identification mark indicating direction of opening. Hydrants shall have permanent markings identifying the manufacturer's name and size of main valve opening and year of manufacture.
Hydrants shall have an automatic drain that is operated by the main valve rod. Drain valve is to open as the main valve is closed and close as the main valve is opened. The port and seat of the main valve is to be bronze. The bronze valve seat shall be threaded into a bronze drain ring or shoe bushing to prevent electrolysis between these components. The drain channel shall be all bronze. The hydrants shall have two (2) drain outlets above the lower flange of the hydrant shoe assembly.
The hydrants shall be designed to permit the use of extension sections and allow all parts to be removable from ground level without requiring excavation of the hydrant.
The outside of the hydrant top section shall be painted a minimum of one (1) coat of primer and one (1) finished coat of enamel. The internal surface of the shoe shall be coated with a factory applied two (2) part, thermosetting epoxy coating with a minimum thickness of four (4) milliliter.
Hydrants shall be equal to Mueller Centurion, Kennedy Guardian, American-Darling B-84-B, Clow Medallion, or approved equal.
F. 
Service Saddle. Bronze service saddles shall be provided at each meter service and other locations noted on the detailed plans. The service saddle shall be designed for use on the type and size of pipe being installed with an "O" ring seal cemented in place. All nuts, bolts, and pins shall be corrosion- resistance bronze or stainless steel. The saddle tap shall be of the same nominal size of the connecting pipe and shall have an AWWA taper thread tap.
Service saddle shall be equal to Mueller H-13000 Series, Ford S70-Series, A.Y. McDonald 3801 or approved equal.
G. 
Corporation Stops. Brass corporation stops shall conform to AWWA C800 for ball type stops. The inlet shall have AWWA tapered thread compatible with the service saddle. The outlet shall be compression type for the service pipe being used. The corporation stop shall be designed to allow tapping of the main through the corporation stop with the main under pressure.
The corporation stops shall be equal to Mueller, Ford, A.Y. McDonald, or approved equal.
H. 
Service Line Coupling. Coupling for connection copper tubing shall be brass with compression connection fitting. A stainless steel stiffener shall be used in making the connection.
The coupling shall be equal to Mueller, Ford, A.Y. McDonald, or approved equal.
I. 
Curb Stops. Brass curb stops shall be provided on the opposite side of a street from the saddle and corp stop. They shall conform to AWWA C800 and shall have PVC pipe size compression joints. The curb stops shall be a full flow ball type design equal to Mueller, Ford, A.Y. McDonald, or approved equal.