[Ord. No. 06-05-01 §709.1, 5-9-2006]
Unless the context specifically indicates otherwise, the meanings of terms used in this Article shall be as follows:
BUILDING DRAIN
That part of the lowest horizontal piping of a drainage system which receives the discharge from soil, waste and other drainage pipes inside the walls of the building and conveys it to the building sewer, beginning five (5) feet (1.5 meters) outside the inner face of the building wall.
BUILDING SEWER
The extension from the building drain to the public sewer or other place of disposal.
CITY
The City of Fair Grove, Missouri.
COMBINED SEWER
A sewer receiving both surface runoff and sewage.
COMMERCIAL USER
Any person, firm, partnership or corporation occupying any building or structure which is connected to the City sewer system, the principal use of which is for engaging in commerce or trade and having a financial profit as the primary aim. Provided however, that schools shall be considered as a "commercial user".
DEPARTMENT
The City Health Department or the authorized Health Officer Representative.
DETAILED DESIGN
The sketch drawing with all calculations and alterations.
EMERGENCY CONDITION
A condition which presents an immediate danger to public health requiring immediate correction without the necessary time to apply for the required permit as set forth herein.
HEALTH HAZARDS
Any condition which is known to cause disease or harm to a person, community or the environment now or in the future.
HEALTH OFFICER
The City Health Officer or an authorized representative.
INDUSTRIAL USER
Any non-governmental user of the City's wastewater works that discharges wastes other than primarily domestic wastes or wastes from sanitary convenience.
INDUSTRIAL WASTES
The liquid wastes from industrial manufacturing processes, trade or business as distinct from sanitary sewage.
INSPECTOR
The person or persons duly authorized by the City, to inspect and approve the installations of building sewers and their connection.
MISSOURI DEPARTMENT OF NATURAL RESOURCES (MoDNR)
The State agency having jurisdiction over community sewer systems, including regulations issued by the agency.
NATURAL OUTLET
Any outlet into a watercourse, pond, ditch, lake or other body of surface or groundwater.
PERMIT
A written authorization issued by the City which authorizes the permittee to construct, install, modify or operate a wastewater facility as set forth in this Chapter
PERSON
Any individual, firm, company, association, society, corporation or group.
PUBLIC SEWER
A sewer in which all owners of abutting properties have equal rights and is controlled by public authority.
RESIDENTIAL USER
Any person occupying any building or structure which is connected to the City sewer system, the principal use of which is for domestic dwelling purposes for any person.
SANITARY SEWER
A sewer which carries sewage and to which storm, surface and ground waters are not intentionally admitted.
SEWAGE
A combination of the water carried wastes from residences, business buildings, institutions and industrial establishments, together with such ground, surface and stormwaters as may be present.
SEWAGE TREATMENT PLANT
Any arrangement of devices and structures used for treating sewage.
SEWAGE WORKS
All facilities for collecting, pumping, treating and disposing of sewage.
SEWER
A pipe or conduit for carrying sewage.
SHALL
Is mandatory; MAY: is permissive.
STOP ORDER
A written order issued by the City or designated representative to stop all construction, installation, modification or operation of a wastewater treatment system.
STORM DRAIN (SOMETIMES TERMED "STORM SEWER")
A sewer which carries storm and surface waters and drainage, but excludes sewage and industrial wastes other than unpolluted cooling water.
WATERCOURSE
A channel in which a flow of water occurs, either continuously or intermittently.
[Ord. No. 06-05-01 §709.2, 5-9-2006]
A. 
Use Of Public Sewer Required. It shall be unlawful for any person to place, deposit or permit to be deposited in any unsanitary manner upon public or private property within the City or in any area under the jurisdiction of said City, any human or animal excrement, garbage or other objectionable waste which ordinarily would be regarded as sewage or industrial wastes.
B. 
Discharge Of Polluted Waste Prohibited. It shall be unlawful to discharge to any natural outlet within said City or in any area under the jurisdiction of said City, any sanitary sewage, industrial wastes or other polluted waters, except where suitable treatment has been provided in accordance with subsequent provisions of this Chapter.
C. 
Construction Of Septic Tanks Unlawful When Sewer Available. Except as hereinafter provided, it shall be unlawful to construct or maintain any privy, privy vault, septic tank, cesspool or other facility intended or used for the disposal of sewage.
D. 
Required Distance For Sewer Connection. The owner of all houses, buildings or properties used for human occupancy, employment, recreation or other purposes, situated within the City and abutting on any street, alley or right-of-way in which there is now located or may in the future be located a public sanitary or combined sewer of the City, is hereby required at his/her expense to install suitable toilet facilities therein and to connect such facilities directly with the public sewer in accordance with the provisions of this Article within ninety (90) days after date of official notice to do so, provided said public sewer is within two hundred (200) feet of the nearest structure corner.
E. 
New Construction — Sewer Required.
1. 
All new development within the City shall be connected to the public sanitary sewer system prior to the issuance of any occupancy permits in accordance with the provisions of this Chapter. This provision is also applicable to existing structures that convert to one for the human employment, recreation or other purposes within the City.
2. 
All sanitary sewer extensions, pump station, appurtenances and all collection and treatment systems shall be designed and constructed in accordance with the provisions of this Article, the most current regulation of the Missouri Department of Natural Resources' rules and regulations and the Statutes of the State of Missouri.
F. 
Permit Required For Building Sewers And Connections. No person shall uncover, make any connections with or opening into, use, alter or disturb any public sewer or appurtenance thereof without first obtaining a written permit from the City.
G. 
Responsibility For Installation And Connection Costs. All costs and expense incidental to the installation and connection to the building sewer shall be borne by the owner including, but not limited to, sewer main damage; street, drainage and sidewalk damage, other utility damage. The owner or the person installing the building for said owner shall indemnify said City from any loss or damage that may directly or indirectly be occasioned by said installation.
H. 
Separate Sewer For Each Building; Exception. A separate and independent building sewer shall be provided for every building; except where one (1) building stands at the rear of another on an interior lot and no private sewer is available or can be constructed to the rear building through an adjoining alley, court, yard or driveway, the building sewer from the front building may be extended to the rear building and the whole considered as one (1) building sewer. Other exceptions will be allowed only by special permission granted by the City.
I. 
Requirements For Old Building Sewers. Old building sewers may be used in connection with new buildings only when they are found, on examination and test by the City Inspector, to meet all requirements of this Section.
[Ord. No. 06-05-01 §709.3, 5-9-2006]
A. 
Connection Standards To Public Sewer. All new connections to the Fair Grove sewer system from newly constructed or converted structures shall be in accordance with the connection requirements set forth herein.
1. 
The size, slope, alignment, material of construction of a building sewer and the methods to be used in excavating, placing of the pipe, jointing, testing and backfilling the trench, shall all conform to the requirements of the Building and Plumbing Code or other applicable rules and regulations of the City. In the absence of code provisions or in application thereof, the material and procedures set forth in appropriate specifications of the A.S.T.M. and W.P.C.F. Manual of Practice No. 9 shall apply.
2. 
The building sewer shall be constructed of pipe and fittings meeting the current A.S.T.M. Specifications. If the building sewer is installed in filled or unstable ground, the building sewer shall be of cast iron soil pipe. PVC schedule 40 pipe may be used in all other locations.
3. 
All joints and connections shall be made gastight and watertight. Connections between pipe of different materials shall be made by adapters specifically designed for that purpose and shall provide a gas and watertight connection.
4. 
Before joining the pipe in the trench, the bell and spigot surfaces shall be wiped free of dirt or other foreign matter. A lubricant or sealer as recommended by the pipe manufacturer shall be applied to the bell and spigot mating surfaces just before they are joined together.
5. 
The spigot end shall be positioned into the bell end of the pipe previously laid and shall then be shoved home to compress the joint and to assure a tight fit between the interfaces. Solvent welds shall be made using materials specifically designed for the pipe used. "All purpose glues" shall not be used.
6. 
The size and minimum slope of the building sewer shall be as provided herein, subject to the review and approval of the City Inspector but in no event shall the pipe inside diameter be less than four (4) inches. The following table shall be used to determine the building sewer line size requirements.
INSIDE DIAMETER
MAXIMUM DISCHARGE FLOW RATE
MINIMUM GRADE
4 inches
35 gallons/minute
1.0%
6 inches
90 gallons/minute
0.6%
8 inches
150 gallons/minute
0.4%
7. 
The building sewer shall be operated and maintained by the property owner.
B. 
Elevation Of Building Sewer.
1. 
Whenever possible, the building sewer shall be brought to the building at an elevation below the basement floor. In all buildings in which any building drain is too low to permit gravity flow to the public sewer, sanitary sewage carried by such building drain shall be lifted by an approved means and discharged to the building sewer. Any such pumping equipment shall be operated and maintained by the property owner.
2. 
The depth shall be sufficient to afford protection from frost with a minimum of twenty-four (24) inches including under ditches. All excavations required for the installation of a building sewer shall be open trench work unless otherwise approved by the said inspector. Pipe laying and backfill shall be performed in accordance with ASTM Specification D2321, except that no backfill shall be placed until the work has been inspected by the inspector or his/her representative. Installation and backfill shall be in accordance with this Section.
3. 
The building sewer line shall be placed on bedding material with a minimum thickness of three (3) inches. The bedding material shall be used to provide a uniform bearing area for the pipe and joints. Bedding material consist of crushed stone ranging in size from a maximum one-half (½) inch diameter to a minimum size which is retained on a No. 4 sieve. Over excavation of the trench shall be backfilled to the proper grade by the use of bedding materials. Bedding material shall extend to a minimum of (16) inches over the top of the pipe.
4. 
In all buildings in which any building drain is too low to permit gravity flow to the public sewer, sanitary sewage carried by such drains shall be lifted by approved artificial means and discharged to the building sewer. No water operated sewage ejector shall be used.
5. 
The connection of the building sewer into the public sewer shall be made at the "T" or "Y" branch designated for that property, if such branch is available at a suitable location. Any connection not made at the designated "T" or "Y" branch in the main sewer, shall be made only as directed by the said inspector using a tapping tool, saddle type "T" or "Y" with epoxy cement used to fix the fitting to the pipe.
6. 
Outside the foundation, the building sewer line shall have a cleanout installed complete with a watertight plug installed at the ground surface. An additional cleanout shall be placed at each bend in direction greater than forty-five degrees (45°) and as required to achieve a maximum spacing of one hundred (100) feet between clean outs. The alignment of the building sewer line shall be straight with bends made using fittings designed for the degree of bend required. Connections between dissimilar pipe materials shall be made using a flexible watertight coupling.
C. 
Surface Runoff And Groundwater Draining To Sanitary Sewer. No person shall make connection of roof downspouts, exterior foundation drains, areaway drains or other sources of surface runoff or groundwater to a building sewer or building drain which in turn is connected directly or indirectly to a public sanitary sewer.
D. 
Inspection Required For Sewer Connection. The applicant for the building sewer permit shall notify the City Inspector when the building sewer is ready for inspection and connection to the public sewer. The connection shall be made under the supervision of the City Inspector or his/her representative. The inspection shall be made within forty-eight (48) business hours of the receipt of the notice.
E. 
Excavations To Be Guarded And Restored. All excavations for building sewer installations shall be adequately guarded with barricades and lights so as to protect the public from hazard. Streets, sidewalks, parkways and other public property disturbed in the course of the work shall be restored in a manner satisfactory to the City.
[Ord. No. 06-05-01 §709.4, 5-9-2006]
Grease, oil and sand interceptors shall be provided for all restaurants, cafeterias whether public or privately run, vehicle wash and when in the opinion of the City Inspector they are necessary for the proper handling of liquid wastes containing grease in excessive amounts or any flammable wastes, sand or other harmful ingredients; except such interceptors shall not be required for private living quarters or dwelling units. All interceptors shall be of a type and capacity approved by the City Inspector and shall be located as to be readily and easily accessible for cleaning and inspection.
[Ord. No. 06-05-01 §709.5, 5-9-2006]
Where preliminary treatment or flow-equalizing facilities are provided for any waters or wastes, they shall be maintained continuously in satisfactory and effective operation by the owner at his/her expense.
[Ord. No. 06-05-01 §709.6, 5-9-2006]
When required by the City Inspector, the owner of any property serviced by a building sewer carrying industrial wastes shall install a suitable control manhole together with such necessary meters and other appurtenances in the building sewer to facilitate observation, sampling and measurement of the wastes. Such manhole, when required, shall be accessibly and safely located and shall be constructed in accordance with plans approved by the City Inspector. The manhole shall be installed by the owner at his/her expense and shall be maintained by him/her so as to be safe and accessible at all times.
[Ord. No. 06-05-01 §709.7, 5-9-2006]
All commercial and industrial pretreatment facilities are required to submit an engineering drawing for review and approval by the City Inspector.
[Ord. No. 06-05-01 §709.8, 5-9-2006]
A. 
Persons Liable. Any person, firm, partnership or corporation who fails to comply with or violates any of the regulations of this Article or other applicable provisions of this Chapter may be held responsible for the violation and be subject to the penalties and remedies as provided in Article III, Section 405.120 and as provided herein.
B. 
Destruction Or Damage To System. No unauthorized person shall maliciously, willfully or negligently break, damage, destroy, uncover, deface or tamper with any structure, appurtenance or equipment which is part of the sewage works. Any person violating this provision shall be subject to immediate arrest.
C. 
Suspension Of Business License. Any person that holds a business license in the City of Fair Grove shall have his/her license suspended immediately by the City Clerk until the next regular meeting whenever the second (2nd) or additional, citations have been issued to said individual holding the business license. The Board of Aldermen shall take actions at said meeting regarding said business license and set a hearing date at that time, if necessary.
[Ord. No. 06-05-01 §709.9, 5-9-2006]
A. 
Applicability. These regulations apply to all wastewater treatment systems except for wastewater treatment systems connected to the sewage systems operated by the City.
B. 
Prohibitions. No person shall:
1. 
Construct, install, modify or operate any private sewage or wastewater treatment system within the City limits without approval by the Board of Aldermen.
2. 
Fail to comply with a stop order issued pursuant to this Chapter.
3. 
Modify or operate any sewage or wastewater treatment system or any "on-site sewage disposal system" as defined in Chapter 701, RSMo., in violation of the provisions of Chapter 701, RSMo., or in violation of any construction, modification or operation permit issued by the Missouri Department of Natural Resources or any other Federal or State agency.
C. 
Inspection Of Installation To Be Made Before Covering. Permit for a private sewage disposal system shall not become effective until the installation is completed to the satisfaction of the City Inspector. He/she shall be allowed to inspect the work at any stage of construction and, in any event, the applicant for the permit shall notify the City Inspector when the work is ready for final inspection and before any underground portions are covered. The inspection shall be made within forty-eight (48) business hours of the receipt of notice by the City Inspector.
D. 
Installation Shall Comply With Recommendations. The type, capacities, location and layout of a private sewage disposal system shall comply with all recommendations of the Missouri Department of Natural Resources. No permit shall be issued for any private sewage disposal system employing subsurface soil absorption facilities where the area of the lot is less than fifteen thousand (15,000) square feet. No septic tank or cesspool shall be permitted to discharge to any natural outlet.
E. 
Connection Required Upon Availability Of Sewer. At such time as a public sewer becomes available to a property served by a private sewage disposal system, as provided in this Section, a direct connection shall be made to the public sewer in compliance with this Article within ninety (90) days after notice from the City. Any septic tanks, cesspools and similar private sewage disposal facilities shall be abandoned and cleaned of sludge and filled with clean bankrun gravel or dirt as determined suitable by the City Inspector.
F. 
Maintenance Of Private Sewage Facilities. The owner shall operate and maintain the private sewage disposal facilities in a sanitary manner at all times, at no expense to the City.
G. 
Statements Not To Interfere With Additional Requirements. No statement contained in this Section shall be construed to interfere with any additional requirements that may be imposed by the Health Officer or City Inspector.
H. 
Construction Permit Required.
1. 
Any person engaged in the construction, installation or renovation of any wastewater treatment system shall obtain a construction permit from the City.
2. 
Applicant shall provide the following information:
a. 
Legal description of the property to the nearest one-quarter (¼), one-quarter (¼) section.
b. 
Individual systems. A completed site evaluation information and sketch for the individual sewer treatment systems.
c. 
Commercial systems with a maximum daily flow of less than three thousand (3,000) GPD. A completed site evaluation information and detailed design of the proposed system.
d. 
Commercial systems with a maximum daily flow of greater than three thousand (3,000) GPD. A letter of approval for the construction issued by Missouri Department of Natural Resources and a copy of the engineering plans as approved by the Missouri Department of Natural Resources.
e. 
Name of the installer and signature of the installer.
3. 
Individual sewage treatment systems shall be approved as to type, design and capacity by the City prior to issuance of the construction permit, in accordance with the current construction standards of the Missouri Department of Health, in particular 10 CSR 20-8.021 of the DNR.
4. 
The system shall be constructed by an installer or contractor registered by the City, except as specified in Chapter 700, Article II.
5. 
The permit application shall be signed by the owner of the property on which the system is to be installed or by his/her legally authorized representative.
6. 
Any applicant knowingly providing false information on the application shall be subject to termination of the permit.
I. 
Powers And Authority Of Inspectors. The City Inspector, City Health Officer or designated representative, bearing proper credentials and identification, shall be permitted to enter all properties for the purpose of inspection, observation, measurement, sampling and testing in accordance with the provisions of this Section.
J. 
Appeals.
1. 
Any person aggrieved by any decision of the City regarding Wastewater Treatment Systems may appeal to the Board of Aldermen by filing a written application with the City Clerk within thirty (30) days after being notified of the decision which is the subject of the appeal.
2. 
The Board of Aldermen shall schedule a hearing on appeal and shall give the person notice of the date of hearing at least ten (10) days prior to the hearing date and give the person reasonable opportunity to be heard.
3. 
Appeal hearings to the Board of Aldermen shall be conducted in accordance with the Board of Aldermen's adopted rules and procedures.
[Ord. No. 06-05-01 §709.10, 5-9-2006]
A. 
All applicants for new street connections to the sewer (hereinafter new service) shall be subject to all rules and regulations heretofore or hereafter adopted or promulgated by the City and to all applicable ordinances or provisions thereof of the City, which may be now or hereafter in force.
B. 
All applicants for new service shall sign in advance at time of planning or start of construction such form or service contract as may be acceptable to City.
C. 
City will not supply permanent service until:
1. 
The customer's application for service shall have been approved by City, and
2. 
All necessary permits shall have been obtained by the customer, and
3. 
Inspection has been approved as hereinafter set forth, and
4. 
The City shall find it practicable to render such service.
D. 
All customers desiring new service shall make application for service and enter into such contracts for service as may from time to time be required by the City. All applications for new service shall be made in the true name of the customer actually to receive and use such service, unless otherwise permitted by the City and the use of a fictitious name by the prospective customer shall be sufficient reason for refusal or termination of service.
E. 
Any change in the identity of the customer of record at the premises shall require a new application and the City may discontinue the service supply until such new application has been made and accepted by the City. In the event customer fails to make the required application for services, the head of the household receiving, using and benefiting from such service, shall be subject to all ordinances, rules and regulations and tariffs and liable for all charges for service rendered.
F. 
A sewer connection customer must be at the residence or have an authorized representative at the residence, at the time the sewer is connected.
[Ord. No. 06-05-01 §709.11, 5-9-2006]
A. 
General Requirements.
1. 
The specification for the construction of sewer lines, pumping stations, auxiliary power generator and force mains of the sewer works of the City shall be as set forth in this Section.
2. 
Sewer lines shall be designed by an engineer and submitted for approval to the City and the MoDNR. The design engineer shall certify the sewer lines were constructed and tested in accordance with the approved plans and specifications and submit to MoDNR forms required to begin use of the completed facilities.
3. 
The customer who requests sanitary sewer service which requires extension of the sewer lines of the City shall request and may be granted the right to make such extension by the City. A building sewer shall not cross through or past another property other than a public right-of-way for connection to sewer.
4. 
The services of an experienced contractor shall install the sewage works in accordance with the approved plans and specifications. The contractor shall give the City at least forty-eight (48) hours' notice of intent to commence work. The contractor shall provide a Performance Bond in the City's name to assure completion of the work. No work shall begin until a proper MoDNR construction permit is delivered to the City.
5. 
The engineer shall prepare the plans in accordance with the following minimum conditions.
a. 
Minimum line size shall be eight (8) inches. Sewage flows shall assume a minimum of two and one-half (2.5) persons per home and one hundred (100) gallons per person per day.
b. 
The design shall conform to the Missouri Department of Natural Resources rules published as "Division 20, Chapter 8, "Design of Sewage Works", latest edition.
c. 
Gravity flow sewers shall be designed and connected to the existing City sewers. Where existing City sewers are not available for connection by gravity flows, a sewage pumping station and force main shall be installed. The required sewage works shall meet all the requirements of the Missouri Department of Natural Resources and the City Inspector. Sewer flow line depth shall not exceed eight (8) feet unless approved by the City.
d. 
The design shall include building sewer connection, tee or wye and sufficient service line to the property to be served and capped. Each end of service line shall be accurately recorded and provided to the City in the form of "as built" plans.
e. 
The design shall include a review of the City's ability to provide treatment of the projected organic and hydraulic loading to be discharged from the extension.
f. 
The plans shall include a plan view at a scale of one (1) inch equals fifty (50) feet or larger. The plan shall include a profile view at a scale of one (1) inch equals fifty (50) feet or larger for all gravity and pressure mains. Elevations shall be based on the USGS datum. Plans with plan views and elevations shall be provided for pumping stations and wet wells. An electrical service detail and wiring diagram shall be provided.
g. 
Sewage pump station design shall include capacities for adjacent upstream developments. The station alarm shall include a one hundred twenty (120) volt light and horn and a separate twelve (12) V.D.C. alarm light and horn for power failure, unless an auxiliary power supply is provided. The design should attempt to provide sewage flow storage of at least two (2) hours at the peak estimated flow rate using a combination of mains, manholes, wet well and storage tank or basin without overflows or building backups. If a tank or basin is to be used, the tank shall be enclosed reinforced concrete and the basin shall have a concrete lining. Where storage is not a viable alternative, a standby generator with auto-transfer switch shall be provided, including specifications for approval by the City.
h. 
Pressure collection and grinder pump stations are not to be used unless specific approval is obtained from the City. Where grinder pumps are used, a spare pump shall be provided for the first ten (10) units installed, plus one (1) additional spare for each multiple of ten (10) units.
6. 
The developer shall be responsible for all cost of engineering, construction and any associated cost resulting from the extension of the sewage works.
7. 
The City will provide written approval for the extension. The City reserves the right to not approve any extension. The City reserves the right to require a main larger than eight (8) inches be installed. The City reserves the right to require the pump station be enlarged. The City reserves the right to require the increase of the force main size.
8. 
The City will review its ability to receive, transmit and provide treatment of the wastewater to be discharged by the extension. The City may require the customer to help defray any cost the City incurs to their sewage works to approve the customer's extension request.
9. 
The customer shall be responsible for acquiring any easements for main extensions where private property must be crossed. The easement shall be approved by the City and the grantee shall be the City. The customer shall obtain a title search to confirm the grantor and record the easement at the Greene County Recorder of Deeds and provide the City with a copy of the recorded document.
10. 
The customer shall acquire the approval of the City, the Greene County Highway Department or the Missouri Department of Transportation where any main extension uses their respective rights-of-way. A copy of the approval or permits shall be provided to the City.
B. 
Sewer Main Specifications.
1. 
Classification of excavation.
a. 
Earth excavation. All excavations not classified as rock excavations shall be classified as earth excavation.
b. 
Solid rock excavation. "Rock excavation" is herein defined as such material as cannot be excavated without drilling and blasting, sledging or barring.
2. 
Lines and grades.
a. 
The contractor shall build to the lines and grades as shown on the approved plans. Alignment and elevation control offset grade stakes and hubs shall be provided at each manhole location. The contractor shall be held responsible for all variation of lines and grades, as established and laid out on the plans. The City may check the pipe at any given point before the trench has been backfilled and if there is a variation of more than five hundredths (0.05) of a foot, from the true grade, the same shall be raised or lowered, as the case may be, unless the City approves the grade change.
b. 
The use of laser aligning equipment is required for the laying of sewer lines to the specified lines and grades. The laser aligning method selected must be shown to have worked satisfactorily on prior contracts and is operated by competent trained men.
c. 
All excavations shall be made with a sufficient working space to permit the placing, inspection and completion of all work contemplated in the contract. Excavated material that is unsuitable and all boulders exposed by grading shall be removed from the work.
d. 
The excavation shall not be performed any farther ahead of the bedding and pipe laying than is necessary to permit a continuous operation.
e. 
Contractor shall conduct the work at all time so as to cause no more obstruction or inconvenience to the public than is deemed necessary by the City. Free passage for vehicles and pedestrians shall be maintained along roadways, sidewalks and drives. Free access shall be provided to all operational fire hydrants, water and gas valves.
When it becomes necessary to close any street, the contractor shall notify the City at least forty-eight (48) hours in advance of such closure including information as to the exact location and extent, the time and expected duration and the reason for the closure.
The contractor shall provide for sufficient number of warning lights, signs and barricades to be available on the work and shall cause them to be placed in such numbers and at such locations as required to maintain reasonable safety to pedestrians and vehicular traffic. When it becomes necessary to divert traffic, a detour route shall be selected by the City and the contractor shall place directional signs of such nature and in sufficient numbers to clearly define the detour route. Barricades, lights and warning signs shall be constructed in accordance with Section 20 of the Manual of Accident Prevention in Construction published by the Associated General Contractors of America or as otherwise approved by the owner. Warning lights shall be lighted from sunset to sunrise.
f. 
The contractor is solely responsible for all safety issues. The contractor shall comply with all Federal, State and local regulations pertaining to safety.
3. 
Sheeting, timbering or bracing. Sheeting, timbering or bracing or other similar protection shall be placed by the contractor wherever necessary for the proper preserving of any excavation, embankment or structure. Where the material is of such character or other conditions are such as to render it necessary, the protective methods used shall be designed by the contractor and installed by the contractor to brace the trench and protect workers, equipment, finished products and adjacent structures, etc. The contractor shall be held responsible for the sufficiency of all sheeting and bracing or other means of protection used and for all persons injured or property damaged as the result of improper quality, strength, pacing, maintaining or removing the same. The contractor shall comply with all Federal and State laws and regulations to afford a safe working condition.
4. 
Removal of water. The contractor shall furnish and operate sufficient pumps and appliances and shall provide all materials, labor, etc., required to prevent interferences with any work by water, ice or snow. Damage of any kind resulting from insufficient pumping facilities or similar lack of proper conduct of the work shall be made good by the contractor at his/her own expense. No structure or pipe shall be laid in water and no water shall be allowed to run into or over any concrete work or pipe or into or through any pipe.
5. 
Leaks or springs. When leaks or springs are found which, in the opinion of the City, affect the safety or usefulness or satisfactory operation of any of the permanent work, he/she may direct special provisions to be taken.
6. 
Backfilling.
a. 
Material used for backfilling shall be free from perishable matter and from other material liable to become unstable when saturated with water after having been compacted. No frozen material shall be used in the backfill. Care shall be taken to avoid injury to structures, pipes, etc., or producing unequal pressure thereon. Special precaution shall be taken backfilling over pipes. No backfill shall be placed over any portion of pipes not inspected by the City.
b. 
Initial backfill for sewer pipe shall be in accordance with ASTM D2321, latest revision. Bedding material shall be used and considered equal to Class I. The bedding shall have a minimum thickness beneath the pipe of four (4) inches and shall extend up and to six (6) inches over the top of the pipe.
c. 
Tamping over and near the pipe must be carefully done to prevent injury to the pipe. Backfilling for the remainder of the trench shall contain no stone over six (6) inches in its largest dimension. This backfilling shall be deposited and spread in layers and solidly tamped.
d. 
Trenches under streets or other traffic areas shall be backfilled with crushed rock bedding material for the entire trench depth. Minimum compaction shall be ninety-five percent (95%) of maximum. Backfill of excavated materials shall be a minimum of ninety percent (90%) maximum.
e. 
Over excavation of the trench shall be backfilled with bedding material to the proper pipe elevations.
f. 
Any settlement of the backfill below the original ground surface shall be remedied by the contractor for a period of twelve (12) months after final completion and acceptance, including reseeding, mulching and pavement repairs.
7. 
Laying pipe.
a. 
The alignment of all pipe lines between adjacent manholes shall be true to line and grade; the pipe line from manhole to manhole shall reflect the full bore of the pipe. The pipe shall be truly centered into the abutting pipe.
b. 
"Tee" or "wye" fittings for building sewer lines shall be installed at locations shown on the plans, they shall be four (4) inches in diameter unless otherwise specified. Saddle type tee or wye shall not be used for new construction. Service pipe shall be installed to each building lot line and capped.
c. 
The exact location of all "tee" or "wye" fittings and ends of the service pipe shall be carefully ascertained by accurate measurement from the center of the manhole next below in the same line of pipe; that a true and exact record may be preserved for future use. As-built drawings shall be provided by the Engineer and they shall reflect the Tee and Wye locations along with any other plan changes. The end of the service pipe shall be marked and length of service pipe installed, measured and recorded.
d. 
The grade lines shown on the profile drawings is the bottom of the inside of the sewers. The pipes shall be truly laid to line and grade throughout. Each pipe shall be laid in an even firm bed crush rock bedding, so that no uneven strain will come to any part of the pipe. Particular care shall be exercised to prevent the pipe from bearing on unstable, uneven bedding.
e. 
The interior of the sewer shall be cleaned of all dirt, jointing materials and superfluous material of every description. Any open end of the line shall be securely closed at the end of each day's work to prevent the entrance of water, small animals, trash or any other obstructions and shall not be opened until work is resumed.
8. 
Cement. Cement shall be standard brand of Portland Cement and shall meet the requirements of the ASTM, Serial Designation C150, Type I, Specifications with all subsequent revisions.
9. 
Concrete. The proportions of water, cement and aggregates shall be such that the mixing water, including the free surface moisture of the aggregate, shall not exceed six (6) gallons per sack of cement. The cement content shall not be less than five and three-fourths (5.75) sacks/cubic yards of mixed concrete. All concrete shall conform to requirements of the ASTM Serial Designation C94 for ready-mixed concrete and any subsequent revisions.
10. 
Cement mortar.
a. 
All cement mortar required shall have the same sand/cement ratio as used in concrete and sufficient water to give the required consistency. Only sufficient mortar shall be mixed to take care of the work at hand. No mortar that has begun to set will be permitted to be used. No retampered mortar shall be used.
b. 
Non-shrink grout equal to Embeco shall be used where specified on the plans.
11. 
Aggregates.
a. 
Fine aggregate shall consist of river sand which shall be free from alkali and surface coatings and shall not contain injurious amounts of organic or other injurious matter. Aggregate shall conform to requirements of ASTM C33.
b. 
Coarse aggregate shall consist of crushed limestone free from dust, flint, mud balls or other foreign matter. Aggregate shall conform to requirements of ASTM C33.
12. 
Water. The water used for mortar, concrete or any other construction purpose shall be free from oil, acid, strong alkali or organic material.
13. 
Forms. All forms (metal or wood) shall be watertight, smooth (if wood, lumber shall be dressed on all sides) and shall be securely fastened by nails, screws or bolts. They shall be thoroughly and securely braced to keep them in exact positions and alignment during the placing and setting of the concrete. The forms shall be coated with an approved oil to prevent adherence of concrete.
14. 
Manholes.
a. 
Precast concrete manholes shall be used and shall conform to the dimensions and details as shown on detail plans and meeting ASTM C478 specifications. Manhole section joints shall be sealed with Ram-Nek, Kent Seal No. 2 or equal, to obtain a pliable watertight joint. Installation shall conform to the manufacturer's recommendations.
b. 
The concrete base and invert shall be constructed as shown on plans. Care shall be taken to obtain a proper bond between the base, invert and manhole section. All leaks shall be repaired. Manhole bases and inverts shall be vibrated. Manhole barrel sections shall be waterproofed on the exterior using Koppers Bitumastic Super Service Black, Ram-Nek Primer I or equal.
c. 
Manhole steps shall conform to ASTM C478, latest revision and shall be spaced as shown on the plans. Steps shall be copolymer polypropylene plastic which encases a one-half (½) inch grade 60 steel reinforcing bar or low density polyethylene which encases a three-fourths (¾) inch diameter 6351-T6 aluminum extrusion.
d. 
Precast manhole bases and inverts may be used. Precast bases shall have four (4) No. 4 rebars embedded in the manhole section plus wire mesh. Precast bases shall be placed on a six (6) inch crushed stone base over an undisturbed earth, set to the correct elevation prior to making final pipe connections. In unstable soil conditions a concrete pad will be required to prevent manhole settlement.
e. 
All inlet and outlet pipes shall be joined to the manhole with a gasketed flexible watertight connection equal to A-Lok that allows differential settlement of the pipe and manhole wall to take place. The gasket shall be cast into the manhole bottom section and conform to tests of ASTM C425. The invert shall not prevent the pipe at the gasket and manhole wall from moving vertically or horizontally.
f. 
Where existing manholes are tied into, the contractor shall core the wall or drill a series of holes and break through the wall to allow for the new pipe entry. A flexible watertight gasket shall be installed and grouted in place with non-shrink grout.
15. 
Drops into manholes. All drops into the manhole where shown on the plans shall be constructed of the same size pipe as the sewer and shall conform to the detailed plans.
16. 
Lampholes. Lampholes shall conform to the detailed plans and shall be constructed with eight (8) inch pipe and shall not exceed one hundred fifty (150) feet from the downstream manhole.
17. 
Paving. All paving which must be removed during the course of construction or which, in the opinion of the City, has been damaged during the progress of the work, shall be replaced with the same type of material as the original paving or, as otherwise specified in the specifications or detailed plans.
a. 
When the excavation has been properly backfilled and has settled sufficiently to permit the final repairs, the backfill shall be removed to a depth necessary to complete the pavement replacement. The existing paving shall be removed for a distance of twelve (12) inches on each side of the original excavation. The paving shall be sawed then broken with care so as to insure a straight edge and a uniform patch.
b. 
Where a City street pavement replacement is required, it shall be in conformance with that shown on the detail drawing and shall be constructed of concrete to the depth shown. See Drawing No. 8 of Section 410.670.
18. 
Blasting.
a. 
The contractor shall conform to the Federal, State and municipal laws in the handling, transportation and use of explosives. Where blasting is necessary, suitable weighted plank covering or mattresses shall be provided to confine all materials lifted by the blasting, within the limits of the trench or other excavation and to prevent injury to life and property. All excavated rock which cannot be shoveled as earth shall be kept separately from other excavated materials and shall not be mixed with other backfill material.
b. 
Where blasting is anticipated, the contractor shall obtain proper liability insurance coverage for blasting operations, conduct a pre-blast survey of all potential affected structures and monitor the blast by recording seismograph that notes the magnitude of ground movement.
c. 
The contractor shall be liable for all damages resulting from any blasting operation.
19. 
Pipe.
a. 
Sewer pipe may be ductile iron or solid wall polyvinyl chloride (PVC), except that ductile iron must be used where called for on plans.
b. 
Ductile iron pipe shall meet ANSI 21.51 (AWWA C151) pressure Class 350 (min) with cement mortar lining conforming to ANSI 21.4 (AWWA C104) and bituminous seal coat.
c. 
Polyvinyl chloride (PVC) sewer pipe shall be SDR-26 conforming to ASTM D-3034, cell classification 12454B. The pipe shall have integral wall bell and spigot joints with flexible, mechanically locked in place compression type gaskets conforming to ASTM D-3212 and ASTM F-477.
d. 
PVC pipe fittings shall be SDR-26 conforming to ASTM D-3034, cell classification 12454 B, with electromeric gasketed joints conforming to ASTM D-3212 and ASTM F-477.
20. 
Manholes and lamphole castings.
a. 
The cast iron manhole and lamphole covers shall conform in dimension to the detailed plans hereto attached. Castings shall conform to the requirements of ASTM A48-74, Class 30 minimum.
b. 
Manhole castings shall have machined surfaces, be traffic rated, weigh a minimum of four hundred (400) pounds, have an entry opening of at least twenty-two (22) inch diameter, use a single pick hole and have centering lugs or a mud ring. Bolt down, gasket lids, may be required where water may pond over the manhole.
21. 
Pipe joint material.
a. 
The joint material for ductile iron pipe shall conform to ANSI 21.11 (AWWA C111) latest revision or as noted on the plans.
b. 
The joint for solid wall PVC pipe shall be an elastomeric gasketed joint with assembly of joints conforming to manufacturer's recommendations and ASTM C3034.
22. 
Bedding material. Material for bedding shall be crushed limestone or washed and crushed gravel conforming to the following gradation requirements of ASTM C33, Size 67.
Passing
1 inch sieve
100%
Passing
¾ inch sieve
90 to 100%
Passing
⅜ inch sieve
20 to 55%
Passing
No. 4 sieve
0 to 10%
Passing
No. 8 sieve
0 to 5%
23. 
Highway crossing. The contractor shall make highway 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.
a. 
Casing pipe. 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 leakproof by welding. Pipes under highway crossings shall have the following wall thickness: sixteen (16) inches and under — 0.188 inch; eighteen (18) inches, twenty (20) inches and twenty-two (22) inches — 0.25 inch.
b. 
Casing pipe installation. Casing pipe shall be jacked or installed in an auger-bored hole to the line and grade required by the plans. Voids two (2) inches larger in diameter than the casing shall be filled with cement grout or sand.
c. 
Carrier pipe installation. The carrier pipe shall be placed in the casing and supported as required to obtain the proper line and grade using temporary wood shims and then the entire casing filled with sand for permanent support. Neat cement plugs shall be placed at the ends of 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.
24. 
Design standards for location of sewer with respect to water mains.
a. 
Horizontal separation. Whenever possible, sewers should be laid at least ten (10) feet, horizontally, from any existing or proposed water main. Should local conditions prevent a lateral separation of ten (10) feet, a sewer may be laid closer than ten (10) feet to a water main if:
(1) 
It is laid in a separate trench, or if
(2) 
It is laid in the same trench with the water mains located at one side on a bench of undisturbed earth, and if
(3) 
In either case the elevation of the top (crown) of the sewer is at least eighteen (18) inches below the bottom (invert) of the water main.
b. 
Vertical separation. Whenever sewers must cross under water mains, the sewer shall be laid at such an elevation that the top of the sewer is at least eighteen (18) inches below the bottom of the water main. When the elevation of the sewer cannot be varied to meet the above requirements, the water main shall be relocated to provide this separation or reconstructed with mechanical joint type pipe for a distance of ten (10) feet on each side of the sewer so that both joints will be as far from the sewer as possible.
When it is impossible to obtain proper horizontal and vertical separation as stipulated above, both the water main and sewer should be constructed of mechanical joint cast-iron and shall be pressure-tested to assure watertightness.
c. 
Water supply interconnections. There shall be no physical connection between a public or private potable water supply system and a sewer or appurtenance thereto which would permit the passage of any sewage or polluted water into the potable supply.
25. 
Grading and seeding.
a. 
All disturbed non-paved grass areas shall be graded and seeded.
b. 
All seed shall be free from Johnson grass, Canadian thistle or field bindweed seed and contain less than two percent (2%) of other weed seed and shall be from the previous years seed crop.
c. 
All reseeded areas shall receive straw mulch at a rate not less than two and one-half (2½) ton per acre (one hundred (100) pounds per one thousand (1,000) square feet).
d. 
The contractor shall guarantee a stand of grass and shall protect all landscaping work against damage until completion and final acceptance of the work.
26. 
Field tests.
a. 
The contractor shall furnish the owner with every reasonable facility for ascertaining whether or not the work performed was in accordance with the requirements and intent of the plans and specifications. Any work done (except excavation) or material used without suitable inspection by the City may be ordered removed and replaced at the contractor's expense. Testing shall be coordinated and witnessed by the City.
b. 
After the completion of the work the contractor shall make such tests of the entire work to demonstrate the efficiency of the sewer and appurtenances. Should any of the work be found faulty in any respect, the contractor shall repair such defects or replace them with new work as may be directed by the City.
c. 
The contractor shall provide facilities to the City to make a visual observation test of the straightness of each section of sewer between two (2) adjacent manholes. There shall be no visible leakage or damage in the system including manholes and lines.
d. 
If the ground water table is two (2) feet or more above the top of the sewer line the contractor shall perform an infiltration test on all such lengths of pipe. The testing shall be carried out by the installation of a plug with a pipe extension through the plug to catch the flow in a graduated container for measurements at such locations as determined by the City. Infiltration shall not exceed one hundred (100) gallons per inch of diameter per mile of pipe per day per manhole reach. A suitable plug shall be installed where required to determine accurate infiltration rates.
e. 
If the groundwater table is less than two (2) feet above the top of the sewer line the contractor shall perform a low pressure air test on all such reaches of pipe. The tests shall be performed in the following manners.
f. 
Low pressure air test.
(1) 
All newly laid pipe shall be subjected to a low pressure air test after backfilling. The equipment shall be provided and test shall be conducted by the contractor in the presence of the City. The test shall be in accordance with ASTM F1417-92.
(2) 
All stubs, wyes, tees and branch building sewers shall be included in the test and shall be suitably capped and braced to withstand the internal pressure during testing.
(3) 
Air for pressurizing of the test section shall be supplied by a properly calibrated portable, oil-free air source with a singular control panel containing a main shut-off valve, pressure-regulating valve, 9 psig pressure-relief valve, input pressure gauge, a continuous monitoring pressure gauge having a pressure range of zero (0) psi to at least ten (10) psi with minimum divisions of one-tenth (0.10) psi and an accuracy of four-hundredths plus or minus (±0.04) psi and a rotometer with standard CFM reading and an accuracy of two percent plus or minus (±2%).
(4) 
Low pressure air shall be introduced into the test section until the internal air pressure reaches four (4.0) psig. After the pressure reaches four (4.0) psig, the air supply shall be regulated so that the pressure is maintained between three and one-half (3.5) to four (4.0) psig for at least two (2) minutes to allow the pressure in the test section to stabilize. After the stabilization period, the air supply shall be disconnected and the pressure decreased to three and one-half (3.5) psig before starting the test period.
(5) 
The line section being tested shall not be accepted unless the time required for a one (1.0) psig pressure drop from a starting pressure of three and one-half (3.5) psig to a final pressure of two and one-half (2.5) psig, using an allowable leakage rate of fifteen thousandths (0.0015) cubic feet per minute per square foot of internal pipe surface.
Minimum Required Test Times By Pipe Size And Length
PIPE DIAMETER INCHES
MINIMUM TIME MINUTES AND SECONDS
LENGTH FOR MINIMUM TIME FEET
TIME FOR LONGER LENGTH SECONDS
MINIMUM TIME FOR LENGTH (L) SHOWN IN MINUTES AND SECONDS
100 feet
200 feet
300 feet
400 feet
4 inches
3:46
597
0.360L
3:46
3:46
3:46
3:46
6 inches
5:40
398
0.854L
5:40
5:40
5:40
5:42
8 inches
7:34
298
1.520L
7:34
7:34
7:36
10:08
10 inches
9:26
239
2.374L
9:28
9:26
11:52
15:49
12 inches
10:20
199
3.418L
11:20
11:24
17:05
22:47
If the pressure drops 1.0 psig before the appropriate time shown in the above table or calculated from the formula has elapsed, the air loss shall be considered excessive and the test section has failed the test. If the test section fails the test, the contractor shall determine, at his/her own expenses, the source of leakage. Segmented testing may be utilized solely to find the location of leaks. Once leaks are located and repaired, the entire test section shall be retested in accordance with the above procedures.
g. 
Each manhole shall be tested by use of a vacuum manhole tester by Cherne or equal. Testing shall include all manhole joints including frame to manhole joint. A vacuum of ten (10) inch Hg. or five (5) psig shall be applied to each manhole. Loss of vacuum shall not exceed one (1) inch Hg. over one (1) minute.
h. 
Test for deflection.
(1) 
When PVC pipe is used, a deflection test shall be made on the entire length of the installed pipeline on completion of all work including compacted backfill and placement of fill material over sewer lines. After pipe is installed and backfill is compacted, the contractor shall allow a minimum of thirty (30) days before making the deflection test.
(2) 
Deflection shall be determined by use of a deflection mandrel device. The mandrel shall have a minimum diameter of ninety-five percent (95%) of the normal inside diameter of the pipe. Failure of the mandrel to pass freely through a pipe run between manholes by being pulled through shall be justification for rejection at the section being tested. Mechanical assisted pulling will not be allowed.
C. 
Wet Well Mounted Pump Station.
1. 
General. The wet well mounted pump station shall be factory-built, automatic pumping station including all equipment and appurtenances as noted on the plans and approved shop drawings. Unless approved by the City, the manufacturer shall be H.F.E. or Smith and Loveless, generally matching the existing stations currently in service. The principal items of equipment for each station shall include two (2) close-coupled, motor-driven, vacuum-primed, non-clog sewage pumps; valves; internal piping; central control panel with circuit breakers; motor starters and automatic pumping level controls; heater; priming pumps and appurtenances; ventilator; and all internal wiring.
2. 
Operating conditions. Each pump shall be capable of delivering the rated flows of raw unscreened sewage against the total dynamic heads as shown on the plans. The maximum allowable speed shall be eighteen hundred (1,800) RPM. The minimum rated horsepower of each pump motor and the maximum static suction lift shall also be as noted on the plans. Normal design condition shall be the Pump "Off" elevations and the force main "C" of one hundred twenty (120). Maximum motor Hp shall be determined using the normal design impeller size, the elevation of over flow from the wet well or manholes and a "C" of one hundred fifty (150). All openings and passages shall be large enough to permit the passage of a sphere three (3) inches in diameter and any trash or stringy material which can pass through a four (4) inch building sewer system.
3. 
Pump chamber.
a. 
The station shall be constructed in one (1) complete factory-built assembly. It shall be sized to rest on the top of the wet well as detailed in the construction drawings. The supporting floor plate shall be minimum three-eighths (3/8) inch thick steel with broken down edges or other reinforcing, to provide a rigid support.
b. 
The pump station shall be enclosed by a hinged fiberglass cover. The cover shall have a suitable drip-lip around the edge and shall be provided with a hasp and staple connection to the floor plate to allow the pump chamber to be locked with a padlock. A resilient rubber seal shall be provided to provide a seal between the cover and the floor plate.
c. 
The cover shall have a latch mechanism to keep the cover open under load. A second cover support cable or chain for the opposite side of the latch shall be provided to stabilize the cover in the open position. Adjustable ventilating louvers shall be provided on each end of the fiberglass cover which are capable of being closed during cold weather operation.
d. 
A one-quarter (¼) inch aluminum manway cover located exterior to the fiberglass pump chamber shall be provided, complete with padlocking provisions. The manway shall be an integral part of the station floor plate and provide access to the wet well.
e. 
The pump volutes and discharge piping shall be mounted in relation to the floor plate as detailed in the construction drawings.
4. 
Welding. All steel structural members shall be jointed by electric arc welding with welds of adequate section for the joint involved.
5. 
Protection against corrosion. After welding, all inside and outside surfaces of the structure shall be blasted with steel grit to remove rust, mill scale, weld slag, etc. All weld spatter and surface roughness shall be removed by grinding. Surface preparation shall comply with SSPC-SP6, commercial blast cleaning, specification. Immediately following the cleaning, a single epoxy primer and a single epoxy finish coating shall be factory applied to all inside and outside surfaces prior to shipment. Paint system shall be equal to Tnemec Hi-Build Epoxoline Series 66, with a minimum dry film thickness of six (6) mils obtained. Aluminum or stainless steel shall not be coated. A touch-up kit shall be provided to allow the contractor to repair scratches, etc. The kit shall contain exact color match coating and detailed instructions for use.
6. 
Pumps.
a. 
The pumps shall be non-clog sewage pumps of heavy cast iron construction especially designed for the use of mechanical seals and vacuum priming. In order to minimize seal wear caused by lineal movement of the shaft, the shaft bearing nearest the pump impeller shall be locked in place. To minimize seal wear resulting from shaft deflection in the mechanical seal caused by the radial thrust of the pump, the shaft shall be a minimum of one and seven-eighths (1⅞) inch diameter from the top of the impeller through the lower motor bearing supporting the impeller. The dimension from the lowest bearing to the top of the impeller shall not exceed six (6) inches.
b. 
The bearing nearest the impeller shall be designed for combined thrust and radial load. The upper bearing shall be free to move linearly with the thermal expansion of the shaft and shall be designed for radial load only.
c. 
The shaft shall be of solid stainless or carbon steel accurately machined over its length. Carbon steel shafts shall be protected in the wet end by a replaceable stainless steel sleeve.
d. 
The pump impeller shall be of the non-clog type made of close-grained cast iron and shall be balanced. The impeller shall have a taper fit and be keyed and secured to the motor pump shaft by a stainless steel cap screw equipped with a Nylock or other suitable self-locking device. To prevent the buildup of stringy materials, grit and other foreign particles around the pump shaft, all impellers shall be full diameter or shall be trimmed inside the impeller shroud. The shroud shall remain full diameter so that close minimum clearance from shroud to volute is maintained. Both the end of the shaft and the impeller bore shall be tapered to permit easy removal.
e. 
The pump shall be so constructed so as to permit priming from the low pressure area behind the impeller. Priming from high pressure connections will not be acceptable. The priming bowl shall be transparent to enable the operator to monitor the priming level.
f. 
The pump shall be arranged so that the rotating element can easily be removed from the volute without disconnecting the electrical wiring or disassembling the motor, impeller, backhead or seal, so that any foreign object may be removed from the pump or suction line.
g. 
The pump shaft shall be sealed against leakage by a single mechanical seal constructed so as to be automatically drained and primed each time the pump is drained and primed. Water which lubricates the mechanical seal shall be automatically drained from around the seal if the pump loses prime.
h. 
The seal shall be of carbon and ceramic materials with the mating surfaces lapped to a flatness tolerance of one (1) light band. The rotating ceramic shall be held in mating position with the stationary carbon by a stainless steel spring.
i. 
The pump volute shall be furnished with mounting lugs and be bolted to the station floor, forming a gas-tight seal.
7. 
Motors.
a. 
The pump motors shall be vertical, solid shaft, NEMA JM, JP or P-base, squirrel-cage induction type, suitable for three (3) phase, sixty (60) cycle, two hundred forty (240) volt, electric current. They shall have Class F insulation, suitable for temperatures up to one hundred five degrees Celsius (105°C). Insulation temperature shall, however, be maintained below eighty degrees Fahrenheit (80°F). The motors shall have normal starting torque and low-starting current, as specified by NEMA Design B characteristics. They shall be open drip-proof design with forced air circulation by integral fan. Openings for ventilation shall be uniformly spaced around the motor frame. Leads shall be terminated in a cast connection box and shall be clearly identified.
b. 
The motors shall have one and fifteen hundredths (1.15) service factor. The motors shall not be overloaded beyond their nameplate rating, at the design condition, nor at any head in the operating range as specified.
c. 
The motor shall be fitted with heavy lifting eyes, each capable of supporting the entire weight of the pump and motor.
8. 
Controls.
a. 
The control equipment shall be mounted in a NEMA Type 1 steel enclosure with a hinged access cover. The circuit breakers, overload reset buttons, run time meters and control switches shall be operable without opening the access cover. All switches and indicating lights shall be heavy duty oil tight design. Dry type transformer shall be provided for one hundred fifteen (115) VAC loads.
b. 
Thermal magnetic circuit breakers shall be provided for branch disconnect service and short circuit protection of all motor control and auxiliary circuits. Industrial grade switchgear shall be used.
c. 
NEMA rated magnetic across-the-line starters with under voltage release and overload coils for each phase shall be provided for each pump motor to give positive protection against single phasing. Each single phase auxiliary motor shall be equipped with an over-current protection device in addition to each branch circuit breaker or shall be impedance protected. All switches shall be labeled and a color-coded wiring diagram shall be provided.
d. 
If the local utility does not allow full voltage starting, then a solid state reduced voltage starter shall be used. Solid state reduced voltage starters shall be Allen-Bradley or Square D.
e. 
A running time meter shall be supplied for each pump to show the number of hours of operation. The meter shall be enclosed in dust and moisture-proof molded plastic case. The flush mounted dial shall register in hours and tenths of hours up to 99999.9 hours before repeating. The meter shall be suitable for operation from a one hundred fifteen (115) volt, 60 cycle supply.
f. 
A separate and independent priming system shall be furnished for each sewage pump, providing complete standby operation. Each priming system shall include separate vacuum pumps and shall have corrosion resistant internal components. They shall each be capable of priming the sewage pump and suction piping in not greater than sixty (60) seconds, under rated static suction lift conditions of twenty (20) feet at mean sea level.
g. 
Each priming system shall be complete with vacuum pump, vacuum control, three-way solenoid valve, prime level sensing probe and a float operated check valve installed in the system ahead of the vacuum pump to prevent liquid from entering the vacuum pump. The float operated check valve shall have a transparent body for visual inspection of the liquid level and shall be automatically drained when the vacuum pump shuts off.
h. 
The priming system shall automatically provide positive lubrication of the mechanical seal each time the sewage pump is primed. To prevent excessive stoppage due to grease accumulation, no passageway in the priming system through which sewage must pass shall be smaller than the equivalent of a two and one-half (2½) inch opening. Priming shall take place on the suction side of the pump impeller.
i. 
To control the operation of the pumps with variations of sewage level in the wet well, three (3) mercury displacement switches shall be provided with sufficient cord to eliminate splices. The cord shall have a corrosion resistant vinyl jacket and be multi-stranded. The switches shall be sealed in a solid polyurethane float and lead weighted. A mercury displacement switch shall also be provided to sense a high water level condition in the pump station wet well. The switch shall activate a single pole double throw relay to indicate the high water condition.
j. 
An automatic alternator with manual switch shall be provided to change the sequence of operation of the pumps every eight (8) hours or with each pump cycle. The manual switch shall allow for either pump to be selected as base pump or for automatic alternation.
k. 
A time delay relay shall be provided to delay the lag pump start after a power failure. Provisions shall also be made for the pumps to operate in parallel should the level in the wet well continue to rise above the starting level for the low level pump.
l. 
A terminal strip with box type connectors shall be supplied to make all power and control connections for both pumps. A ground terminal strip shall also be provided. All terminals shall be marked for easy identification. Rubber compression grommets shall be used to seal the cords through the floor plate to secure the float positions and to seal the station chamber from the wet well. The pump control panel shall be completely wired at the factory, except for power feeder lines. All wiring in the pump control panel shall be numerically or color coded and all switches labeled as indicated on the wiring diagram. Wiring diagrams matching the unit shall be provided.
9. 
Environmental equipment.
a. 
A ventilating blower shall be provided which is capable of delivering two hundred fifty (250) CFM of air in order to remove heat generated by continuous motor operation. The ventilating blower shall be turned on and off by a pre-set thermostat. Louvers which are capable of being closed for cold weather operation shall be installed in each end of the fiberglass cover. The blowers shall be rigidly mounted and its discharge shall have a thick resilient gasket which will match with the louvered opening to seal the discharge when the cover is closed.
b. 
An electric heater controlled by a pre-set thermostat shall be furnished. The heater shall be rigidly mounted in the station to prevent removal and be not less than one thousand five hundred (1,500) watts rated.
10. 
Station piping.
a. 
The pump suction shall be drilled and tapped for a one hundred twenty-five (125) pound American Standard flange for ready connection to the suction riser provided by others. The discharge line from each pump shall be fitted with a clapper type or ball type check valve and an eccentric full port plug valve. The clapper type check valve shall be of the spring-loaded type with external lever arm and a replaceable resilient seal to insure air-tight sealing. Check valves shall have stainless steel shaft with replaceable bronze shaft bushing and shall be sealed with an adjustable Teflon seal. The common discharge pipe shall be provided with a dresser type sleeve coupling to connect to either steel or cast iron piping. The discharge valves shall be above the base plate. All valves must be capable of passing a three (3) inch sphere.
b. 
Suction and discharge piping shall be extended through the station base plate so all field connections are made within the wet well. A positive seal around the suction and discharge must be provided to prevent wet well fumes from entering the station chamber.
11. 
Audio/visual alarm.
a. 
To indicate high water in the wet well, an audio-visual alarm shall be provided for operation on one hundred fifteen (115) volt, single phase power.
b. 
To indicate a loss of power, a audio-visual alarm shall be provided for operation by a twelve (12) VDC power supply, if an auxiliary power supply is not provided.
c. 
The audio/visual alarm systems shall be housed in a NEMA 4 stainless steel enclosure mounted at the location shown in the plans.
d. 
The audio alarm shall consist of vibratone horns suitable for outdoor mounting, with an audio output of at least ninety (90) db. A silencing switch shall be provided for each.
e. 
The visual alarm shall be a vapor-proof light fixture with flashing one hundred (100) watt, one hundred fifteen (115) VAC and a fifty (50) watt DC lamp suitable for outdoor mounting, with red globes and guard. The visual alarm shall continue to flash until the alarm condition has been cleared.
f. 
The battery system shall include a maintenance free lead/calcium permanently sealed battery, a trickle charger with fast or float recharge modes.
g. 
A push-to-test feature shall be provided in the pump control panel to indicate the alarm devices are functioning properly. The systems shall reset automatically once the alarm condition ends.
12. 
Spare equipment. The following spare equipment shall be supplied with each wet well mounted pump station:
a. 
Two (2) spare mechanical seal assemblies.
b. 
Six (6) spare casing gaskets.
c. 
One (1) spare mercury float switch and conductor.
d. 
One (1) alternator relay.
e. 
One (1) control relay of each type used.
f. 
One (1) vacuum pump repair kit.
13. 
Factory tests. All components of the pump station shall be given an operational test of all equipment at the factory to check for excessive vibration, for leaks in all piping or seals and for correct operation of control system and all auxiliary equipment.
14. 
Installation and operation instructions.
a. 
Installation of the pump chamber shall be done in accordance with the written instructions as provided by the manufacturer.
b. 
The manufacturer's field representative shall provide startup services to check the pump station(s) for proper installation and to instruct the owner's personnel on recommended operation and maintenance procedures.
c. 
Six (6) copies of an operation and maintenance manual giving detailed step-by-step operating, maintenance and troubleshooting procedures for all pump station components including control panel, vacuum priming system and sewage pumps shall be provided to the City.
15. 
Guarantee. The contractor and manufacturer of this equipment shall provide to the City a one (1) year guarantee, from the date of acceptance for parts and labor to correct any material or installation problems.
16. 
Electric service. Between the utility company meter and the station control panel, the contractor shall install a double throw switch unless a auxiliary power supply is provided. The double throw switch shall be mounted on a uni-strut frame on the utility company service pole or on an acceptable rack near the station. An appliance inlet to match the City's portable electric generator connection plug shall be installed on the bottom of the double throw switch enclosure and wired for use. Power surge and lightning protection shall provided.
17. 
Fencing.
a. 
The design shall provide for the contractor to furnish and install six (6) foot high chain link fencing and gate. All chain link fencing and installation shall be in accordance with the "Chain Link Fence Manufacturer's Institute" specifications.
b. 
The contractor shall furnish and install a six (6) foot high chain link fence and gate as noted on the plans. Line posts shall be set at intervals not to exceed ten (10) feet. Where conditions require, a shorter spacing shall be used. All posts shall be set true and plumb with the post holes backfilled with two thousand (2,000) psi (4 sack mix) concrete to finish grade. Line post holes shall be twelve (12) inch diameter, thirty-eight (38) inches deep with thirty-six (36) inch concrete embedment. The fence fabric shall be stretched taut approximately two (2) inches above the ground securely fastened to the posts and top rails. Stretcher bars shall be fastened to corner posts at fifteen (15) inch intervals. Fabric shall be fastened to line post at fifteen (15) inch intervals using tie wire, metal bands or other approved methods. The top edge shall be fastened to the top rail at twenty-four (24) inch intervals. Fabric splicing shall be done by weaving a single strand into the ends of rolls to form a continuous mesh. Where required, the top rails shall be bent to form a radius. Bending shall be done such that the zinc coating is not damaged.
c. 
The fence fabric shall be a two (2) inch by two (2) inch mesh installed using standard line post, corner post, railing, hardware and bracing. Fence fabric shall be 9-gauge steel wire with zinc-coating by the hot-dip or electrolytic process. Fabric shall be knuckled on the bottom and twisting and barbing at the top.
d. 
Corner, end and pull posts shall be standard round 2.875 inches O.D., 5.79 lb/ft., zinc-coated. Gate posts shall be standard round 4.00 inches O.D., 9.1 lb/ft., zinc-coated. Line posts shall be standard round 1.90 inches O.D., 2.72 lb/ft., zinc-coated. Top rails shall be standard round 1.66 inches O.D., 1.806 lb/ft., 18 ft. lengths with coupling connection, zinc-coated.
e. 
Gates shall be swing type complete with latches, stops, keepers, hinges with provisions for three (3) strands of barbed wire above the fabric. Gate frames shall be constructed of tubular members, welded at all corners or assembled with fittings. Welds shall be painted with aluminum based or zinc based paint. Frame members shall be 1.90 inches O.D., 2.72 lb/ft., zinc-coated. Gates shall be braced as required for the installation. Fabric shall be the same as for fencing.
f. 
Three (3) strands of barbed-wire shall be installed above the fence fabric on support arms. Barbed wire shall be 12-gauge wire, 14-gauge 4-point barbs at five (5) inch intervals and zinc-coated.
g. 
Hardware shall include corner post top, line post top piece with hole for rail, stretcher bars, bands, ties or clips and other items required for a complete installation.
18. 
Wet well. The pump station shall set on a reinforced concrete wet well. A minimum diameter of five (5) feet is required. The pipe entries into the wet well side shall be through gasketed connections, equal to A-Lok. The wet well shall have a sloping concrete invert. The station mounting plate shall be firmly anchored to the top of the wet well. The station suction pipes shall be a minimum four (4) inch diameter, Sch. 40 PVC with solvent welded flanged or four (4) inch D.I.P. with flanged. The suction pipes shall be cross braced using two (2) inch stainless steel pipe, brackets and fasteners.
19. 
Portable pump connection. A force main tee, gate valve and valve box, check valve, four (4) inch aluminum quick coupler, reinforce concrete pit and manhole frame and cover shall be installed inside the pump station fenced area.
D. 
Duplex Grinder Pump Station.
1. 
General.
a. 
A duplex submersible grinder station may be used in lieu of the wet well mounted pump station where service is to developments with flows less than seven thousand five hundred (7,500) gallons per day of average flow.
b. 
The principal items of equipment shall include two (2) close coupled, submersible motor driven, grinder sewage pumps; valves and piping; guide rail system; and central panel with circuit breakers, motor starters and automatic pumping level controls.
2. 
Performance requirements.
a. 
Each pump shall be capable of delivering the rated flows of shredded sewage against the total dynamic head as shown on the plans. The maximum allowable speed shall be three thousand four hundred fifty (3,450) rpm, the voltage shall be two hundred forty (240) volt 1-phase or two hundred forty (240) volt 3-phase and the minimum rated horsepower of each pump motor shall be three (3) horsepower.
b. 
The number of homes or flow shall not exceed the manufacturers recommendations.
c. 
The pumps shall be capable of operating throughout the range of the impeller curve without overloading the motor.
d. 
The pumps, motors and guide rail system shall be designed for Class 1, Group D, Division 1, hazardous locations.
3. 
Manufacturers. In accordance with this specification, furnish submersible grinder pump system(s) as manufactured by Myers or Hydro-Matic brands.
4. 
Pumps.
a. 
Each pump shall be a centrifugal type grinder pump with recessed type impeller and integrally built-in grinder assembly and completely submersible motor. Pump shall be installed on a lift-out rail type system in such a way that solids are fed in an up-flow direction to the grinder impeller with no feet, rails or other obstruction below grinder inlet.
b. 
The pump impeller shall be of the multi-vane, recessed type to provide an open unobstructed passage through the volute for the ground solids. Impeller shall be of 85-5-5-5 bronze and shall be threaded onto stainless steel shaft.
c. 
The grinder assembly shall be capable of macerating all material in normal domestic and commercial sewage including reasonable amount of foreign objects such as wood, plastics, glass, rubber, sanitary napkins, disposable diapers and the like into a fine slurry.
d. 
The grinder assembly shall consist of grinder impeller and shredding ring and shall be mounted directly below the volute passage. Grinder impeller to be threaded onto stainless steel shaft and be locked in place with screw and washer. The shredding ring shall be pressed into iron holding flange for easy removal. Flange shall be provided with tapped back-off holes so that screws can be used to push the shredding ring from housing. All grinding of solids shall be from action of the impeller against the shredding ring. Both shredding ring and impeller shall be removable from the outside without dismantling the pumps and hardened to fifty-five to sixty (55 — 60) Rockwell C.
5. 
Motors.
a. 
Pump motors shall be of the sealed submersible type suitable for the electric service shown on the plans. Single phase motors shall be of the capacitor start, capacitor run, type for high starting torque.
b. 
Stator winding to be of the open type with Class A insulation for operating in clean dielectric oil that lubricates bearings and seals and cools the windings.
c. 
Motors shall have three (3) bearings, two (2) ball bearings to support the rotor and take radial and thrust loads and a single sleeve bearing in the seal chamber to prevent shaft deflections at the lower seal. Ball bearings shall have a B-10 life of fifty thousand (50,000) hours.
d. 
A heat sensor thermostat shall be attached to top end of motor winding and shall be connected in series with the magnetic contactor coil in control panel to stop motor if motor winding temperature reaches two hundred twenty degrees Fahrenheit (220°F). Thermostat to reset automatically when motor cools. Two (2) heat sensors are to be used on 3-phase motors, one (1) sensor for 1-phase motors.
e. 
The motor shall be protected by a tandem mechanical seal of the double spring design operating in an oil filled cavity. Seals shall have carbon and ceramic faces Type 21 BF1C1 lapped to a flatness tolerance of one (1) light band. Metal parts and springs shall be stainless steel. An electrode shall be mounted in the seal cavity to detect any water leakage past the lower seal. Electrodes shall be connected to an amber signal light in the control panel.
f. 
The common motor, pump and grinder shaft shall be of No. 416 stainless steel threaded to take pump impeller and grinder impeller.
g. 
Motor power and control cords shall be Type SO of sufficient length to suit installation. Both cords shall be potted into motor end cap with epoxy potting compound. In addition, a rubber grommet that seals both cords shall be clamped onto cord by end holding cap. Cords shall withstand a pull of one hundred fifty (150) pounds without loosening.
6. 
Pump and motor castings. All castings shall be ASTM A-48, Class 30 cast iron with 300 Series stainless steel hardware. All iron castings shall be pre-treated with phosphate and chromic rinse and shall be painted with high temperature baked epoxy before machining and all machined surfaces exposed to the sewage water repainted with high temperature baked epoxy.
7. 
Electrical controls.
a. 
The pump manufacturer shall supply a completely self-contained Duplex Control Panel to operate the pumps as shown in the control wiring schematic in the plans. The control panel shall provide short circuit and overload protection for each pump. An automatic alternator shall be provided to automatically alternate the lead pump duty between the two (2) pumps on successive cycles. The alternator circuitry shall also provide means to start the lag pump in the event the lead pump capacity is less than the inflow or the lead pump fails. A switch shall be provided to bypass the alternator.
b. 
All control elements shall be mounted in a NEMA 4 stainless steel enclosure. The NEMA 4 enclosure shall have a separate inside hinged door to provide for mounting control switches, pilot lights, run time meters and overload reset buttons. Outer door of NEMA 4 enclosure shall have a hasp for padlock and a minimum of three (3) draw pull type catches.
c. 
A main circuit breaker for each pump shall be mounted with the operating handles through the inside door and shall have a lock arrangement that prevents the door from being opened when breakers are in the "on" position. When breakers are off, all power shall be killed to the control elements. Circuit breakers for auxiliary circuits shall be provided.
d. 
A magnetic heavy duty contactor and manual re-set quick trip ambient compensated overload block shall be provided for each motor. Overload coils shall hold with a voltage drop up to thirty-five percent (35%). Starters shall be full voltage, NEMA rated.
e. 
Motor start and run capacitors and start relay for single phase motors shall be mounted in control panel.
f. 
Heat sensor thermostats in each motor shall be wired in series with the magnetic contactor coil to protect the motor against excessive heat. Thermostats shall reset automatically when motor cools.
g. 
A seal leak electrode installed in each pump seal cavity shall be connected to an amber signal light on the control panel inside door.
h. 
A run time meter shall be supplied for each pump to show the number of hours of operation. The meter shall be enclosed in dust and moisture-proof molded plastic case. The flush mounted dial shall register in hours and tenths of hours up to 99999.9 hours before repeating. The meter shall be suitable for operation on a one hundred fifteen (115) volt, 60 cycle power supply.
i. 
H-O-A switches, pilot lights, run-time meters and overload reset buttons shall be mounted on the control panel inside door. Switches shall be oil-tight construction. Toggle type switches will not be considered equal.
j. 
Sealed displacement type mercury switches shall be supplied to control pump cycling. The mercury switches shall be sealed in a solid polyurethane float for corrosion and shock resistance. Conductor cord shall be a two (2) conductor stranded cord with individual insulated wires enclosed in a neoprene jacket. Cords shall be lead weighted at float end and suspended from a support bracket mounted at top of pump chamber.
k. 
A terminal strip with box type connectors shall be supplied to make all power and control connections for the pumps. A ground terminal strip shall also be provided. All terminals shall be marked for easy identification.
l. 
A high water in the wet well alarm horn and red light (115 volt), activated by a float switch shall be provided as a part of the control panel for the duplex stations. A separate Audio/Visual Alarm System sensing power loss and battery powered shall be provided as detailed in the Specification section entitled "Wet Well Mounted Sewage Pumping Station".
m. 
The pump control panel shall be completely wired at the factory, except for the power feeder lines. All wiring in the pump control panel shall be numerically or color coded as indicated on the wiring diagram. Wiring diagrams matching the unit shall be provided.
8. 
Pump chamber.
a. 
The pump chamber (wet well) shall be fabricated from precast manhole sections with pre-cast base. Joints shall be made with Ram-Nek or equal, joint sealer. Pipe openings for force mains shall be grouted with non-shrink grout and include a water-stop gasket centered in the wet well wall opening. Gravity lines shall have a flexible, water-tight, gasket connection. The minimum wet well diameter shall be four (4) feet.
b. 
Equipment installed shall be firmly anchored so that no undue stress exists. All anchoring hardware shall be stainless steel.
9. 
Access frame and cover. A pump chamber access frame and cover shall be provided. The cover shall be rectangular opening made with aluminum frame and hinged aluminum cover and of adequate size to suit installation. A minimum clear opening shall be twenty-four (24) inches. Cover shall be of diamond pattern no-skid type and shall be provided with lock hasp and manual release hold open arm. Cover shall be designed for load of three hundred (300) pounds per square foot. All hardware shall be stainless steel.
10. 
Guiderail system.
a. 
The lift-out rail system assembly shall permit easy removal and installation of the pump and check valve without the necessity of personnel entering the wet well. Structural guide brackets with guide yokes of sufficient bearing strength to prevent binding shall bolt to the pump. The yokes shall mate over guide rails of a minimum of one and one-quarter (1¼) inch pipe running between an upper rail support and the discharge case. A discharge nozzle or flange at the check valve shall be guided into a chamfered cavity or a sealing flange. Dual "O" rings or a resilient seal shall effect a hydraulic seal between the two (2) parts when it is in its operating position.
b. 
The discharge case shall be securely bolted to the floor of the wet well so that slight deflection caused by the discharge pipe will not cause the quick-connect pump flange to leak.
c. 
All cast iron parts shall be coated with corrosion resistant baked on epoxy paint.
d. 
The lift-out check valve shall be of the swing clapper type with rubber facing. A bronze seat bushing shall be mounted in face of valve to provide a corrosion-proof seat. The clapper shall be mounted on a stainless steel shaft and shall be spring loaded to prevent slamming when closing. An alternate ball-type check valve may be used with a bronze machined sealing face and a resilient ball. The check valve shall lift out with pump to allow for inspection, cleaning or maintenance of the valve outside the wet well. All fasteners shall be stainless steel.
e. 
An upper guide plate shall be attached to pump to support lift out fitting and guide pump on rails. A lifting eye shall be attached to plate and stainless steel cable and clevis shall be furnished for lifting pump. Each pump shall be equipped with a three-sixteenths (3/16) inch (minimum) stainless steel lifting cable with provisions for direct connection to the portable crane winch drum allowing continuous lifting of the drum.
f. 
Two (2) hold-down brackets shall be provided to prevent pump and seal fitting from rising on rails.
g. 
Guide rails shall be one and one-quarter (1¼) inch stainless steel pipe and holddown pipe shall be one-half (½) inch stainless steel pipe.
h. 
Rail support and mounting bushing shall be mounted to basin wall and shall not be attached to basin cover or cover frame.
i. 
Guide rail support shall be adjustable so that perfect vertical alignment of the rails can be obtained.
11. 
Factory tests. Both submersible pumps and the control panel shall be given an operational test of all equipment at the factory to check for excessive vibration, for leaks in piping or seals and for correct operation of control system and any auxiliary equipment and for motor load through the pump curve range.
12. 
Installation and operating instructions.
a. 
Installation of equipment shall be done in accordance with written instructions provided by the manufacturer in an installation and operations manual.
b. 
A manufacturer approved technician shall provide start-up services to check pump station installation(s) for proper operation and to instruct the owner's personnel on recommended operation and maintenance procedures.
c. 
Six (6) copies of an operation and maintenance manual giving detailed step-by-step operating, troubleshooting and maintenance procedures for all pump station components including control panel shall be provided to the City.
13. 
Spare parts. The contractor shall provide the following spare parts for this project:
a. 
Two (2) spare discharge seal assembly for each station.
b. 
Two (2) spare tandem mechanical seal assembly for each station.
c. 
Two (2) spare grinder assemblies for each station.
d. 
One (1) spare mercury float switch and conductor for each station.
e. 
One (1) spare alternator relay for each station.
14. 
Guaranty. The contractor and manufacturer of this equipment shall provide to the City a one (1) year guarantee from the date of acceptance, for parts and labor to correct any material or installation problems.
15. 
Electric service. Between the utility company meter and the station control panel, the contractor shall install a double throw switch unless a auxiliary power supply is provided. The double throw switch shall be mounted on a uni-strut frame on the utility company service pole or on an acceptable rack near the station. An appliance inlet to match the City's portable electric generator connection plug shall be installed on the bottom of the double throw switch enclosure and wired for use. Power surge and lightning protection shall be provided.
16. 
Fencing. See wet well mounted pump station section for "fencing".
17. 
Portable pump connection. See wet well mounted pump station section for "portable pump connection" with pipe size adjustment to match force main size.
E. 
Force Main.
1. 
General. These specifications shall apply to the installation of all pipe, fittings and valves, included in the pumping station force main system as shown on the plans. Specific materials and sizes to be used are set forth on the plans and in the specifications.
2. 
Material.
a. 
Ductile iron pipe and fittings.
(1) 
Fittings shall be mechanical joint except where otherwise noted on the plans. All iron fittings shall conform to ANSI A21.10 (AWWA C110) with cement mortar lining. Buried fittings shall have bituminous seal coat. Restrained joints shall be provided where noted on the plans.
(2) 
Ductile iron pipe (D.I.P.) shall conform to ANSI A21.51 (AWWA C151) pressure Class 350 (min.) with cement mortar lining according to ANSI 21.4 (AWWA C104) and bituminous seal coat.
(3) 
The joint material for ductile iron pipe shall conform to ANSI A21.11 (AWWA C111) for push-on-joint. Flanged or mechanical joints shall be used where specifically noted on the plans.
b. 
PVC plastic pipe.
(1) 
The PVC pipe shall conform to PVC 1120 pressure pipe as made from Class 12454-B material, as defined in ASTM D1784, providing a hydrostatic design basis of two thousand (2,000) psi and meeting all requirements of ASTM D-2241.
(2) 
The PVC pipe shall have a pressure Class rating of two hundred (200) psi and a SDR ratio of twenty-one (21).
(3) 
The pipe shall be manufactured using an integral wall-thickened bell end and an elastomeric-gasket, conforming to ASTM D2672 (Bell-End) and ASTM F477 (Gasket).
(4) 
The pipe shall bear the National Sanitation Foundation (NSF) Seal of approval in addition to the marking requirements of ASTM D-2241.
(5) 
Ductile Cast Iron fittings for four (4) inch and larger pipe shall be mechanical joint. Fitting for force mains less than four (4) inches shall be schedule 40 PVC.
(6) 
The minimum pipe size shall be four (4) inches for non-clog wet well mounted pump stations and two (2) inches for duplex grinder pump stations.
c. 
Marking tape.
(1) 
A detectable marking tape, APWA color coded for sewage force main (brown), with wording similar to "Caution Force Main Buried Below" permanently printed on a three (3) inch wide, five (5) mil thick film, shall be installed six (6) inches above the force main pipe.
(2) 
The tape shall consist of 35-gauge solid aluminum foil core and laminated with two layers of clear plastic film. The tensile strength shall be a minimum of twenty-eight (28) pounds per inch (5,600 psi) bond strength shall be five (5) hours without peeling in boiling water, the flexibility shall be pliable hand per ASTM 671. Printing shall be black letter and be permanent. Standard roll lengths of one thousand (1,000) feet shall be used.
3. 
Delivery and handling of materials.
a. 
All materials shall be carefully inspected for damage in transit and if such be found, same shall not be unloaded except upon the instruction from the official freight agent.
b. 
All pipe fittings, valves and other accessories shall be unloaded by the use of hoist of skidways. Same shall be handled in such manner as to avoid damage due to shock. Under no circumstances shall pipe be dropped to the ground from the cars or trucks.
4. 
Pipe installation.
a. 
Competent men shall be employed and suitable equipment necessary for the execution of work if required. The pipe and fittings shall be lowered in the trench piece by piece, by means of ropes or suitable equipment. Under no circumstances shall pipe or other materials be dropped or dumped into the trench.
b. 
Trench excavation.
(1) 
Excavated trenches shall be cut to the alignment as set by the Engineer's stakes and with sufficient width that the pipe may be efficiently installed and to a depth to provide no less than forty-two (42) inches of cover over the top of the pipe, except where solid is encountered. A greater depth may be required to obtain an eighteen (18) inch clearance with potable water lines or as required by the plans. In trenches with sold rock, the minimum cover may be reduced to thirty (30) inches except for water main crossings.
Trenches shall be cut as deep as necessary on either side of natural depressions, ditches, waterways, etc., to provide the required cover over the low spot. Excessive change in gradient shall not be allowed unless fittings are used. Common trenching with a gravity sewer may be used.
(2) 
The pipe and fittings shall be installed using only the methods recommended by the manufacturer.
(3) 
The trench shall be excavated to depth sufficient to obtain the required cover plus a minimum of four (4) inches of crushed stone bedding material.
c. 
Solid rock excavation. Solid rock shall be defined as such material that cannot be excavated without drilling and blasting, wedging, sledging or barring.
d. 
Pipe laying.
(1) 
A thorough cleaning of the pipe shall be done just before the pipe is lowered into the trench. Before lowering the pipe it shall be inspected for defects. Defective or damaged pipe shall not be installed.
(2) 
Joints shall be prepared and made according to the manufacturer's recommendations.
(3) 
On all pipe lines two (2) inches in diameter and larger, all changes in alignment exceeding twenty-two and one-half degrees (22½°) shall be squarely anchored by suitable thrust concrete backing. Such concrete backing shall be so spaced that the pipe or fitting joints will be accessible for repair. The area of the bearing on the pipe and the ground in each instance shall be determined by the Engineer.
(4) 
Prior to backfilling all pipe and fittings shall be inspected and approved by the City.
e. 
Trenching, backfilling and cleanup.
(1) 
The bottom of the trench shall be backfilled with four (4) inches of crushed rock sand bedding material. Bedding material shall be deposited in the trench simultaneously on both sides of the pipe and to elevations of at least six (6) inches above the top of the pipe. Bedding rock shall have the following gradation:
Percent Passing
Sieve Size
100
⅜ inch
95 — 100
No. 4
(2) 
The upper portion of the trench may be backfilled with materials containing coarser material and may be compacted by hand tamping or flooding (trench jetting). At street crossings, the entire depth of the backfill shall be crushed rock.
(3) 
Unless otherwise specified, all disturbed lawn, parkway and other vegetated areas shall be graded and seeded. The seed mixture shall be the type of grass that exists in that location.
(4) 
All seed shall be free from Johnson seed grass, Canadian thistle or field bindweed seed and contain less than two percent (2%) of other weed seed and shall be from the previous years seed crop. All reseeded areas shall receive straw mulch at a rate not less than two and one-half (2½) ton per acre (one hundred (100) pounds per one thousand (1,000) square feet). The contractor shall guarantee a stand of grass and shall protect all landscaping work against damage until completion and final acceptance of the work.
f. 
Pavement repair.
(1) 
All paving which must be removed during the course of construction or which, in the opinion of the City, has been damaged during the progress of the work, shall be replaced with the same type of material as the original paving or, as otherwise specified in the specifications or detailed plans.
(2) 
When the excavation has been properly backfilled and has settled sufficiently to permit the final repairs, the backfill shall be removed to a depth necessary to complete the pavement replacement. The existing paving shall be removed for a distance of twelve (12) inches on each side of the original excavation. The paving shall be sawed then broken with care so as to insure a straight edge and a uniform patch.
(3) 
Where a City street pavement replacement is required, it shall be in conformance with that shown on the detail drawing and shall be constructed of concrete to the depth shown.
g. 
Contractor shall conduct the work at all times so as to cause no more obstruction or inconvenience to the public than is deemed necessary by the City. Free passage for vehicles shall be maintained along roadways and drives, where it is practical to do so. Free access shall be provided to all fire hydrants, water and gas valves or other emergency devices.
h. 
When it becomes necessary to close any roadway the contractor shall notify the City at least forty-eight (48) hours in advance of such closure including information as to the exact location and extent, the time and expected duration and the reason for the closure.
i. 
The contractor shall provide for a sufficient number of warning lights, signs and barricades to be available on the work and shall cause them to be placed in such numbers and at such locations as required to maintain reasonable safety to pedestrians and vehicular traffic. Barricades, lights and warning signs shall be constructed in accordance with Section 20 of the Manual of Accident Prevention in Construction published by the Associated General Contractors of America. Warning lights shall be lighted from sunset to sunrise. The contractor is solely responsible for safety and shall comply with all Federal, State and local laws pertaining to safety.
5. 
Testing.
a. 
All completed pipelines shall be tested for both structural strength and for water leakage.
b. 
Pressure test. Each pipe line section to be tested shall be subjected to a hydrostatic pressure of at least one and one-half (1.5) times the actual working pressure at the point of testing and not less than one and one-quarter (1.25) times the working pressure at the highest point along the test section and a minimum of one hundred (100) psi. Test pressures shall be of at least two (2) hours duration and not vary by more than five (+5) psi for the duration of the test.
c. 
Each pipe line section to be tested shall be filled slowly with water and the specified test pressure, shall be applied by means of a pump connected to the pipe in a manner satisfactory to the Engineer. Before applying the specified test pressure, air shall be completely expelled from the pipe line. A temporary valve shall be installed at the force main open end.
d. 
Any exposed pipe, fittings and joints shall be carefully examined during the test. Any damaged or defective pipe or fittings that are discovered shall be repaired or replaced with sound material and the test repeated until the pipe line is satisfactory to the City.
e. 
A leakage test shall be conducted concurrently with the pressure test. "Leakage" is defined as the quantity of water that must be supplied into the pipe line section being tested to maintain the test pressure within five (±5) psi of the specified test pressure. No pipe line installation will be accepted if the measured leakage is greater than that determined by the following formula:
L =
S x D x P ½
133,200
in which L is the allowable leakage in gallons per hour; S is the length of the pipe line tested in feet; D is the nominal diameter of the pipe in inches; and P is the average test pressure during the leakage test in pounds per square inch gauge.
If any test discloses leakage greater than that determined by the above formula, the contractor shall, at his/her own expense, locate and make repairs as necessary until the leakage is within the specified allowance.
All visible leaks shall be repaired regardless of the amount of leakage.
6. 
Highway crossing.
a. 
The contractor shall make highway 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. If the Highway Department requires that the line be tunneled or bored through, the contractor shall furnish all pipe, pipe encasement, tunneling, boring equipment, timbering, shoring, bracing, rock excavation and other labor material required.
b. 
Casing pipe and joints shall be constructed from steel, having a minimum yield strength of thirty-five thousand (35,000) psi. Joints shall be leak-proof by welding. Pipes under highway crossing shall have the following wall thickness: sixteen (16) inches and under, 0.188 inches; eighteen (18) inches, twenty (20) inches and twenty-two (22) inches, 0.250 inches.
c. 
Carrier pipe installation. The carrier pipe shall be placed in the casing using manufactured 14-gauge S.S. band and high density polymer runner casing spacers, three (3) per pipe section or a six (6) foot maximum spacing or mechanically locked in place high density polyethylene. 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. The ends of the casing shall be sealed with concrete grout.
7. 
Design with respect to water mains.
a. 
Horizontal separation. Whenever possible, force mains should be laid at least ten (10) feet, horizontally, from any existing or proposed water main. Should local conditions prevent a lateral separation of ten (10) feet, a force main may be laid closer than ten (10) feet to a water main if:
(1) 
It is laid in a separate trench, or if
(2) 
It is laid in the same trench with the water mains located at one side on a bench of undisturbed earth, and if
(3) 
In either case the elevation of the top (crown) of the force main is at least eighteen (18) inches below the bottom (invert) of the water main.
b. 
Vertical separation. Whenever force mains must cross under water mains, the force main shall be laid at such an elevation that the top of the force main is at least eighteen (18) inches below the bottom of the water main. When the elevation of the force mains cannot be varied to meet the above requirements, the water main shall be relocated to provide this separation or reconstructed with mechanical joint type pipe for a distance of ten (10) feet on each side of the force main so that both joints will be as far from the force mains as possible.
When it is impossible to obtain proper horizontal and vertical separation as stipulated above, both the water main and force main should be constructed of mechanical joint cast iron and shall be pressure tested to assure watertightness.
c. 
Water supply interconnections. There shall be no physical connection between a public or private potable water supply system and a force main or appurtenance thereto which would permit the passage of any sewage or polluted water into the potable supply.
F. 
Auxiliary Power Supply.
1. 
General.
a. 
This Subsection (F) covers equipment, material and service requirements for furnishing, installing and acceptance testing pre-assembled emergency/standby electric generating system including all devices and equipment specified herein, as shown on the drawings or required for the service. Equipment shall be new, factory tested and delivered ready for installation.
b. 
References.
(1) 
National Electrical Code (NEC).
(2) 
National Fire Protection Association (NFPA).
(3) 
National Electrical Manufacturers Association (NEMA).
(4) 
Underwriter's Laboratories, Inc.
2. 
Submittals.
a. 
Furnish manufacturer's catalog data and illustrations showing principal dimensions, parts and materials for generator set, transfer switch and specified accessories. Include technical data and specifications for major components.
b. 
Furnish sizing calculations verifying generator set selection.
c. 
Furnish interconnection wiring diagrams showing all external connections required; with field wiring terminals marked in a consistent point-to-point manner.
d. 
Furnish installation instructions and drawings showing layout and anchorage of equipment and appurtenances.
e. 
Furnish operating instructions and service manuals for the specific equipment furnished.
3. 
Quality assurance.
a. 
Manufacturer shall be experienced in the design and production of engine generator sets, automatic transfer switches and associated controls for a minimum of five (5) years.
b. 
Engine generator set, automatic transfer switch and all specified accessories shall be provided by a single source of supply and responsibility.
4. 
Gasoline engine — generator set.
a. 
Acceptable manufacturers. Onan Corporation, Kohler or CAT.
b. 
Provide 4-cycle, 1,800 RPM, gasoline engine-driven generator set with low reactance brushless generator, torque-matched excitation, automatic voltage regulator, set-mounted control panel and high ambient cooling system. A diesel engine may be used for higher rated generator outputs.
(1) 
Unit rating. Generator set shall be rated for continuous standby operation, 120/240 volt, 3-phase, 4-wire, 60 hertz at eight-tenths (0.8) power factor.
(2) 
Size unit to start and carry the connected loads indicated on the drawings.
(3) 
Equip set with associated control equipment to provide automatic starting and stopping of engine-generator and switching of load.
c. 
Gasoline engine. Engine shall be 4-cycle, 1,800 RPM, inline 6 or V-6 or V-8.
(1) 
Equip engine with mechanical governor, integral with fuel pump, to provide automatic engine/generator set frequency regulation of five percent (5%) from steady state no load to steady state rated load.
(2) 
Provide unit-mounted closed loop radiator system to properly cool the engine when generator set is delivering full rated load with one hundred twenty-two degrees Fahrenheit (122°F) inlet air. Guard rotating parts from accidental contact.
(3) 
Equip engine with low oil pressure, high water temperature, over-crank and automatic overspeed shutdown devices.
(4) 
Include the following engine accessories:
(a) 
Electric starter capable of three (3) complete cranking attempts without overheating.
(b) 
Positive displacement, mechanical, full pressure, lubrication oil pump. Full flow lubrication oil filters with replaceable spin-on canister elements, dipstick oil level indicator and oil drain.
(c) 
LP liquid gas fuel system shall be provided, including converter. Contractor to secure a licensed LP installer to provide a five hundred (500) gallon tank and the required fuel line between the tank and engine. Fuel line to be buried and inside of two (2) inch Sch. 40 PVC pipe.
(d) 
Replaceable dry element air cleaner for heavy duty application.
(e) 
Engine mounted battery charging alternator with solid-state voltage regulator.
d. 
AC generator.
(1) 
Shall be synchronous, four (4) pole, revolving field, drip-proof construction, pre lubricated bearing, air-cooled by a direct drive centrifugal blower fan and directly connected to the engine with semi-flexible steel disc coupling.
(2) 
All insulation system components shall meet NEMA MG1 standard temperature limits for Class F insulation system. Actual temperature rise measured by resistance method at full load shall not exceed one hundred five degrees Celsius (105°C).
(3) 
Equip generator with excitation system and voltage regulator to maintain voltage within two percent (2%) of rated value for any constant load between no load and rated load.
(4) 
Provide unit capable of voltage recovery within three (3) seconds and with a maximum voltage dip of twenty percent (20%) following application of any load up to one hundred percent (100%) of rated load at rated power factor.
e. 
Engine-generator set control.
(1) 
Control logic.
(a) 
Control system shall provide for automatic starting and stopping of engine- generator and switching of load.
(b) 
Control shall include automatic remote start capability from a panel mounted three (3) position (stop, run, remote) switch.
(c) 
Control shall shut down and lock out upon failing to start (overcrank), overspeed, low oil pressure, high engine temperature or operation of a remote manual stop station.
(d) 
Provide alarm indicating lights for the following conditions:
(i) 
Overcrank shut down — red.
(ii) 
Overspeed shut down — red.
(iii) 
Low oil pressure shut down — red.
(iv) 
Low oil pressure pre-alarm — yellow.
(v) 
High engine temperature shut down — red.
(vi) 
High engine temperature pre-alarm — yellow.
(vii) 
Low coolant temperature — yellow.
(viii) 
Run — green.
(ix) 
Not in automatic start — flashing red.
(2) 
Control panel enclosure.
(a) 
Shall be NEMA 3R steel enclosure mounted on the generator set with vibration isolators.
(b) 
Equip panel with the following devices and features:
(i) 
Control panel illumination lamp with on/off switch.
(ii) 
Engine oil pressure gauge.
(iii) 
Coolant temperature gauge.
(iv) 
DC voltmeter.
(v) 
Running time meter (hours).
(vi) 
AC meter package with combination ammeter-voltmeter-phase selector switch.
f. 
Base.
(1) 
Mount engine-generator set on a heavy steel base to maintain alignment between components. Cushion mount with pad-type vibration isolators.
(2) 
Include battery tray with battery holddown clamps.
(3) 
Base shall receive a baked enamel finish to match generator set.
g. 
Fuel storage tank.
(1) 
Provide a five hundred (500) gallon LP tank.
(2) 
Provide poured concrete pad for leveling and load bearing.
h. 
Generator set auxiliary equipment and accessories.
(1) 
Housing. Provide corrosion resistant weather protective housing constructed of rugged steel and factory-assembled to generator set base and radiator cowling.
(a) 
Housing shall permit ample airflows for generator set cooling.
(b) 
Equip with lockable, hinged access doors to permit access to service points and controls.
(c) 
Housing shall be cleaned, phosphated and painted inside and out with rust inhibiting primer and finish coat of manufacturer's standard color.
(2) 
Circuit breaker. Provide properly sized and rated, UL listed, molded case, thermal-magnetic type, three (3) pole circuit breaker as a load circuit interrupting and protection device.
(a) 
Set-mounted and wired.
(b) 
Operate both manually as an isolation switch and automatically during overload and short-circuit conditions.
(3) 
Coolant heater. Provide engine mounted, thermostatically controlled water jacket heater, sized as recommended by the equipment supplier.
(4) 
Starting and control batteries. Provide lead acid type, twelve (12) volt DC, sized as recommended by the generator set manufacturer. Include battery cables and connectors.
(5) 
Battery charger. Provide ten (10) amp voltage regulated battery charger. Equip charger with float, taper and equalize charge settings. Provide visual alarm lights to indicate the following conditions:
(a) 
Loss of AC power — red.
(b) 
Low battery voltage — red.
(c) 
High battery voltage — red.
(d) 
Power on — green.
(6) 
Exhaust muffler. Provide residential grade muffler. Size, type and installation as recommended by the generator set manufacturer set manufacturer.
5. 
Automatic transfer switch.
a. 
Acceptable Manufacturers. Onan Corporation, Kohler or CAT.
b. 
Provide factory assembled transfer equipment with electronic control designed for surge voltage isolation, voltage sensors on all phases of both sources, linear operator, permanently attached manual handles, positive mechanical and electrical interlocking and mechanically held contacts. Include quick-make, quick-break contact mechanisms for manual transfer under load.
(1) 
Transfer switch and accessories shall be UL listed and tested per UL Standard 1008.
(2) 
Ratings.
(a) 
Main contacts shall be rated six hundred (600) volts AC minimum.
(b) 
Transfer switch shall be rated to carry one hundred percent (100%) of rated current continuously in the enclosure.
(c) 
Equipment shall have a withstand and closing rating in RMS symmetrical amperes greater than the available fault currents at the site.
(3) 
Equip transfer switch with solid-state automatic control equipment to monitor utility source and provide automatic starting and stopping of engine-driven generator set and switching of load between sources.
c. 
Construction.
(1) 
Transfer switches shall be double-throw, electrically and mechanically interlocked and mechanically held in both positions.
(2) 
Equip with permanently attached manual operating handles and quick-break, quick-make over-center contact mechanisms for safe manual operation under load.
(3) 
Provide one (1) set Form C auxiliary contacts on both sides, operated by transfer switch position.
(4) 
Transfer switches for 4-wire systems shall be supplied with a switched neutral pole of same construction and ratings as phase poles. All poles shall be switched simultaneously using a common crossbar.
(5) 
Enclosure.
(a) 
Shall be NEMA 4X stainless steel enclosure mounted as indicated on the drawings.
(b) 
Equip panel with hinged access door secured with fast operating clamp assembly. Include padlock hasp on door.
(c) 
Provide knockouts for conduit entry. Allow for wire bending space at points of entry in accordance with NEC.
(d) 
Equip panel with thermostatically controlled heater to minimize effects of humidity and condensation.
(e) 
Controls on panel door shall be key-operated. Provide position indicator lamps and power available lamps for both sources.
(f) 
Manual operating handles and all control switches, other than key-operated switches shall be accessible only by opening the enclosure door.
d. 
Automatic controls.
(1) 
Provide voltage and phase monitoring system which will automatically start the standby generator and transfer the electrical load to the generator when any phase of utility line voltage drops below seventy-five percent (75%) of normal voltage and transfer the electrical load back to the utility source when all phases are ninety percent (90%) or more of rated voltage.
(2) 
Equip transfer switch with a cranking limiter to open starting circuit after forty-five (45) seconds should the engine fail to start.
(3) 
Provide time delay features for engine starting to override momentary power dips, load retransfer and engine shutdown.
(4) 
Voltage sensors and control relays shall be solid state plug-in type devices.
(5) 
Equip unit with test switch for manual simulation of power outage including standby operation and load transfer.
(6) 
Provide solid state exerciser clock to set the day, time and duration of generator set exercise/test period. Provide a with/without load selector switch for the exercise period.
6. 
Installation.
a. 
Install standby engine-generator unit and accessories as indicated in accordance with the equipment manufacturer's written instructions and with recognized industry practices. Comply with NFPA and NEMA standards pertaining to installation of standby engine-generator systems and accessories.
b. 
Make all electrical and control connections. Tighten connectors and terminals in accordance with equipment manufacturer's published torque tightening values. Where manufacturer's torque values are not indicated, tighten connectors and terminals to comply with tightening torques specified in UL Standard 486A.
c. 
Grounding. Provide equipment grounding connections for engine-generator set as required by NEC. Tighten connections to comply with torques specified in UL Standard 486A, to assure permanent and effective ground.
d. 
Provide all necessary materials, components and adjustments as required for a complete and operating standby power system.
e. 
Provide all necessary fuel and lubrication for initial startup, testing and as required for successful operation.
7. 
Field testing.
a. 
Manufacturer's services.
(1) 
Provide equipment manufacturer's services at the job site to check installation, to perform initial startup and operational test and to instruct Owner's personnel in the proper operation and maintenance of the equipment.
(2) 
Services to be performed by an authorized representative of the engine generator set manufacturer.
b. 
Operational test.
(1) 
Prior to acceptance, an operational test of all pumps and control systems shall be performed to determine if the installed equipment meets the purpose and intent of the specifications. Operational test shall demonstrate that the equipment is not electrically, mechanically, structurally or otherwise defective; is in safe and satisfactory operating condition; and conforms with the specified operating conditions.
(2) 
Installation acceptance tests to be conducted on-site shall include a "cold start" test, a two (2) hour full load test and a one-step rated load pickup test in accordance with NFPA 110. Provide a resistive load bank and make temporary connections for full load test as required.
(3) 
Operational test shall include checks for excessive vibration, leaks in fuel system, correct operation of control systems and equipment, proper alignment, excessive noise levels and power output.
(4) 
Perform complete megger testing.
(5) 
Make all necessary equipment adjustments and corrective work indicated by tests. Repeat testing as necessary.
(6) 
Submit two (2) copies of written report stating operations performed and results obtained.
8. 
Guarantee. The contractor and manufacturer of this equipment shall provide to the City a one (1) year guarantee from the date of acceptance, for parts and labor to correct any material or installation problems.
[Ord. No. 06-05-01, 5-9-2006; Ord. No. 07-03-02 §2, 3-19-2007]
The standard drawings associated with this Chapter and referred to therein are as follows:
Street Details
Drawing No. 1
410a Street Details Drawing No 1.tif
Street Details
Drawing No. 2
410b Street Details Drawing No 2.tif
Note: Place 4" of compacted Type 1 Aggregate under pavement and 1' 0" beyond curb.
Street Details
Drawing No. 2
STANDARD PAVEMENT WIDTH AND THICKNESS
STREET TYPE
MINIMUM RIGHT-OF-WAY WIDTH
PAVEMENT WIDTH
"T"
Alleys
20 feet
6 inches
Local
"R-1" or "R-2"
50 feet
28 feet
6 inches
"R-3" or "R-4"
60 feet
36 feet
6 inches
Collector
"R-1, "R-2", "R-3", "R-4"
60 feet
36 feet
7 inches
"C-1", "C-2" and "M-1"
60 feet
44 feet
7 inches
Arterial
80 feet
68 feet
7 inches
Parkway
Divided
120 feet
68 feet
To be determined individually
Undivided
100 feet
68 feet
Note: Cross slope shall be 3/16"/foot on all pavements except alleys. To create a gutter section the contractor shall form a 2" rise 2' from the inside of the curb. Pavement width will be measured from back to back of curbs on improved streets.
Curb Radius Chart
Drawing No. 3
410c Curb Radius Chart Drawing No 3.tif
Joint Location Chart
Drawing No. 4
410d Joint Location Chart Drawing No 4.tif
Pavement Keyways
Drawing No. 5
410e Pavement Keyways Drawing No 5.tif
Residential Driveway Section
Drawing No. 6
410f Residential Driveway Section Drawing No 6.tif
Rural Driveway Plan View
Drawing No. 6
410g Rural Driveway Plan View Drawing No 6.tif
Commercial Driveway Section
Drawing No. 6
410h Commercial Driveway Section Drawing No 6.tif
Pre-Cast Curb Inlet
Drawing No. 7
410i Pre-Cast Curb Inlet Drawing No 7.tif
Street Cut Specifications
Drawing No. 8
410j Street Cut Specifications Drawing No 8.tif
Concrete Driveway Detail
Drawing No. 9
410k Concrete Driveway Detail Drawing No 9.tif
Pipe Trench And Bedding
Drawing No. 10
410l Pipe Trench and Bedding Drawing No 10.tif
Standard Building Sewer Connection
Drawing No. 11
410m Standard Building Sewer Connection Drawing No 11.tif
Dissimilar Pipe Or Repair Connection Detail
Drawing No. 12
410n Dissimilar Pipe or Repair Connection Detail Drawing No 12.tif
Pre-Cast Manhole With Pre-Cast Base And Invert
Drawing No. 13
410o Pre-Cast Manhole With Pre-Cast Base and Invert Drawing No 13.tif
Drop Manhole
Drawing No. 14
410p Drop Manhole Drawing No 14.tif
Existing Manhole Connection
Drawing No. 15
410q Existing Manhole Connection Drawing No 15.tif
Plans For Manhole Inverts
Drawing No. 16
410r Plans For Manhole Inverts Drawing No 16.tif
Manhole Step
Drawing No. 17
410s Manhole Step Drawing No 17.tif
Standard Manhole Frame And Cover
Drawing No. 18
410t Standard Manhole Frame and Cover Drawing No 18.tif
Standard Lamphole
Drawing No. 19
410u Standard Lamphole Drawing No 19.tif
Force Main Details
Drawing No. 20
410v Force Main Details Drawing No 20.tif
Sewage Air Valve Detail
Drawing No. 21
410w Sewage Air Valve Detail Drawing No 21.tif
Wet Well Mounted Pump Station
Drawing No. 22
410x Wet Well Mounted Pump Station Drawing No 22.tif
Duplex Grinder Pump Station
Drawing No. 23
410y Duplex Grinder Pump Station Drawing No 23.tif
Building Sewer Details
Drawing No. 24
410z Building Sewer Details Drawing No 24.tif
410za Building Sewer Details Drawing No 24.tif
Building Sewer Materials
Drawing No. 25
Illustration to be provided by the City.
A. 
The building sewer pipe and fittings shall conform to the following specifications for materials and installation.
1. 
Pipe and fittings.
a. 
Solid wall PVC (Sch. 40). Shall be manufactured in accordance with ASTM-D-1784 and ASTM D-1785. Joints shall be solvent weld or compression elastomeric seal.
b. 
Cast iron soil pipe. Shall be manufactured in accordance with ASTM-A-74. Joints shall be compression rubber gasket conforming to ASTM C564.
2. 
Pipe coupling. Shall be manufactured using elastomeric PVC with stainless steel bands and screws for joint makeup. Coupling shall be designed for the specific type and size of pipe to be joined. The PVC shall be designed for use in sewers, including ultraviolet sunscreen, fungicide preventative and resistant to caustic chemicals. In unstable soil conditions a stainless steel shear ring should be used. Couplings shall be equal to FERNCO.
3. 
Saddle tee or wye. A PVC saddle type tee or wye shall be used in the tapping of existing sewer mains. The saddle shall have a gasketed skirt and held in position by two stainless steel bands. The connection shall be gasketed or slip depending on the building sewer pipe being used. Other types of saddles may be used if specifically designed for the intended purpose and provides a watertight connection, and is approved for use by the superintendent.