CHAPTER 705: WATER REGULATIONS

ARTICLE I. WATER SERVICE

Section 705.010.  Water Rates. [CC 1979 §90.120]

The rate of assessment to be charged and collected for the use and service of the water system of the City of Stockton, Missouri, said water system being a part of the combined waterworks and sewerage system of said City, shall be based on recommendations by the City Board, by the Board of Public Works, and decisions made subject to the ordinances of the City Board. 

Section 705.020.  Water Rate Basis. [CC 1979 §90.130]

Water rates are to be based on classification by quantity used. A base rate known as the minimum charge will be charged to all users. The rates will be reviewed and established annually by the City Board at budget time. The amount will be based on projected water expenses and actual cost figures to run the department, based on the past two (2) years. 

Section 705.030.  Analysis. [CC 1979 §90.140]

The Public Works Secretary will maintain regular totals on projected water receipts, sewer receipts, sales tax receipts, and gallonage sold. Receipts will be revised after adjustments, write-offs, and delinquent bills are paid. This figure will be used by the Public Works Board to determine revenue and to project needs based on revenue loss because of deteriorating or inadequate lines. The Public Works Supervisor will maintain regular records on water pumped. These figures will be analyzed each billing period by the Public Works Supervisor to estimate loss of water by leaks, and by the Purchasing Agent annually to recommend water and sewer rates to the City Board at budget time. 

Section 705.040.  Application for Water Service. [CC 1979 §90.150; Ord. No. 128 §90.150, 6-24-1991]

All expenses connected with introducing water into or upon any premises must be paid by the applicant and the cost of making the connection, or laying the pipe to lot line, shall be made before the meter is set, providing always, that the right of the applicant or his/her assigns in or to any supply pipe and attachments thereto shall be subject to all rules and regulations which now are or may be hereafter adopted by the City Board and to all rules and regulations in relation to the control and management of the system of waterworks of this City existing either at the time such application is made or afterwards and shall be deemed a part of the contract between the City and the applicant. When a lot is divided or other arrangements are made to accommodate a rental or second (2nd) unit on the same lot with another residence or business, a separate connection shall be made and separate water meter installed. 

Section 705.050.  Meter Deposit. [CC 1979 §90.160] 

A.     The occupant shall pay a meter deposit as determined by the City Board at their annual review. The Supervisor will so notify the occupant. If said occupant fails to pay meter deposit when requested, the Supervisor shall at once disconnect said meter and shut off the water until payment by meter owner of all charges as required by City ordinance. 

B.     Meter deposit made by contractor on speculative houses will be made so that construction usage will be paid by contractor. Upon completion of building, the meter will be read, the contractor charged, and the meter shut off. The contractor should make every effort to see that the building occupant makes a deposit. The contractor's deposit will be returned when he/she pays his/her construction water usage bill. 

C.     Any person using water for any purpose not paid for shall be deemed guilty of a misdemeanor and upon conviction shall be fined as provided in Section 100.220 of this Code.   

Section 705.060.  Misuse of Water or Water System. [CC 1979 §90.170] 

A.     Any person who shall, without authority from the owner thereof or the person having charge thereof, willfully and maliciously open, close, cover or remove any fireplug, hydrant, stopcock or valve box or cover thereof, affixed to and being a part of any system of waterworks in said City, or who shall willfully or maliciously pollute the water supply for such waterworks shall be guilty of a misdemeanor and on conviction thereof shall be fined in any sum not exceeding one hundred dollars ($100.00) plus costs. 

B.     It shall be unlawful for any person without proper authority to draw or take water from any system of waterworks in said City or for any person, partnership or corporation having authority by contract or permit to use such water willfully to waste the same by leaving open the stopcock of any pipe or willfully permitting the water to run to waste in any manner not in conformity to or in compliance with such contract or permit, and any person, partnership or corporation found guilty of any act or acts unlawful according to the provision of this Section will be considered guilty of a misdemeanor and fined as provided in Section 100.220 of this Code, plus costs for replacements of any damage which ensues from such improper use. 

C.     Whenever two (2) or more units, i.e., separate families or businesses, are supplied from one (1) pipe connected with the distributing main, there shall be a minimum charge for each unit. If it is impractical to have a second (2nd) meter, there will still be a separate billing and minimum charge and a cut-off valve will be installed. The City will install a separate meter whenever possible. 

D.     No owner or occupant of any building or premises in which water is introduced from the waterworks shall be allowed to supply any other person, family or business with such water unless such person, family or business has a permit therefor. Any person violating this Section shall be guilty of a misdemeanor as provided in Section 100.220 of this Code, and his/her water meter disconnected until the second (2nd) user has complied with this Section. No extensions will be made from those water users outside the City limits who were there before the ordinance was passed prohibiting City water outside the City limits. 

E.      All persons taking water shall keep their own service pipe, stopcocks, hose and other apparatus in good repair and protected from frost and freezing at their own expense; and in case repairs are needed and are not made when requested so to do by the Supervisor, the water shall be shut off until said repairs are made.     

ARTICLE II. REQUIRED STANDARDS

Section 705.070.  Water Line Permit and Costs. [CC 1979 §90.165; Ord. No 72 §90.165, 10-12-87] 

A.     No unauthorized person shall uncover, make any connections with or opening into, use, cover or disturb any public water line or appurtenance thereof without first obtaining a written permit from the Supervisor. 

B.     There shall be two (2) classes of building water line permits. Connection fees for water service shall be as follows: 

1.      For residential and commercial service, one hundred dollar ($100.00) connection fee plus costs of any parts used. 

2.      For service to establishments producing industrial wastes, the City's actual cost in connecting said user.

              In either case, the person doing the actual digging, installing and/or connecting or his/her agent shall make application on a special form furnished by the City. The permit application shall be supplemented by any plans, specifications or other information considered pertinent in the judgment of the Supervisor, or required by the State of Missouri. A permit and inspection fee established by resolution for residential or commercial building water line permit and for industrial building permit shall be paid to the City at the time application is filed.      

      

C.     All costs and expenses incident to the installation and connection of the building water line shall be borne by the owner. The owner shall indemnify the City from any loss or damage that may directly or indirectly be occasioned by the installation of the building water line.   

Section 705.080.  Standards. [CC 1979 §90.180]

Standards for type of line will be provided by the Public Works Supervisor and he/she will have the right of approval of waiver for any variations of standards. 

Section 705.085.  Water Connections and Materials. [Ord. No. 431, 2-14-2011] 

A.     The owner of all houses, buildings, or properties used for human employment, recreation, residence 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, access to a public water system within one hundred (100) feet of the property line, is hereby required to connect to such facilities in accordance with the provisions of this Chapter, within sixty (60) days after the date of official notice to do so. 

B.     The size, alignment, material used in construction of new or the replacement of the existing public water system, 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 most recent edition of the Department of Natural Resources Public Drinking Water Branch, Design Guide for Community Public Water Supplies. A permit to construct issued by the Department of Natural Resources will be received prior to construction, alteration, or extension of the water system. 

C.     The Public Works Supervisor and/or other duly authorized employees of the City bearing proper credentials and identification shall be permitted to enter all properties for the purposes of inspection, observation, measurement, sampling, and testing in accordance with the provisions of this Section.

C.     While performing the necessary work on private properties referred to above, the Supervisor or duly authorized employees of the City shall observe all safety rules applicable to the premises established by the company and the company shall be held harmless for injury or death to the City employees and the City shall indemnify the company against loss or damage to its property by City employees and against liability claims and demands for personal injury or property damage asserted against the company and growing out of the gauging and sampling operation, except such as may be caused by the negligence or failure of the company to maintain safe conditions.

C.     The Supervisor and other duly authorized employees of the City bearing proper credentials and identification shall be permitted to enter all private properties through which the City holds a duly negotiated easement for the purposes of, but not limited to, inspection, observation, measurement, sampling, repair, and maintenance of any portion of the public water system lying within said easement. All entry and subsequent work, if any, on said easement, shall be done in full accordance with the terms of the duly negotiated easement pertaining to the private property involved.   

Section 705.090.  Stop and Waste Valves. [CC 1979 §90.190]

When water is run in any building, a stop and waste valve is required on every floor so as to shut off the water and drain the pipes in cold weather. The stop must be placed in some convenient place in order to cut it off. If necessary a rod and key above the floor, and the plumber is to instruct the consumer how to shut off the water, drain the pipes, and to keep them from freezing. 

Section 705.100.  Water Not to Be Used. [CC 1979 §90.200]

No water shall be taken or used from private or public hydrants except as authorized by the Chief of Fire Department or the Supervisor. 

Section 705.110.  Water Mains — Minimum Requirements. [Ord. No. 225, 3-24-1997] 

A.     Within the City limits of Stockton all new water main for providing of fire protection serving fire hydrants shall be six (6) inches in diameter. Further, that the minimum residual pressure of these new lines shall be twenty (20) PSI at ground level at all points in the new distribution systems. 

B.     Water mains not designed to carry fire flows shall not have fire hydrants connected to them. Any departure from these minimum requirements shall be allowed and in such cases as are justified by hydraulic analysis and future water use. 

C.     The definition of "water main" shall be all pipes and lines that are used to convey water from the water source to the public, excluding service connections.   

Section 705.120.  Fire Department Water Requirements. [CC 1979 §90.210; Ord. No. 108 §90.210(7), 12-10-1990] 

A.     Fire Department water requirements shall be as follows: 

1.      Source of supply.  To be adequate to supply the maximum domestic consumption demand and to be reliable. 

2.      Capacity of supply works (includes pumps, ground and elevated storage).  Total capacity to be sufficient to deliver fire flows, in excess of the maximum domestic consumptive demand, of not less than four hundred (400) gallon per minute for three (3) hours. 

3.      The flow specified under "Capacity of supply works" is to be maintained for the designated duration at not less than fifty (50) pounds residual (not static) pressure from fire hydrants in business and manufacturing sections in City. In residential sections of single-family dwellings, at least half the above flows are to be maintained at not less than fifty (50) pounds residual pressure. Where a fire engine pumper is provided in the Fire Department of at least three hundred (300) gallons per minute capacity, the residual pressure at which the required flow is delivered may be reduced to not less than twenty (20) pounds in all cases. Fire engine pumper to be subject to test and approval by the Missouri Inspection Bureau. 

4.      Power to be adequate to operate all pumps at all times; transformers serving pump motors to be equal to total combined motor capacities and serve pump motors only. 

5.      Pump house to be brick, tile or equivalent construction with fire-resistive roof covering. 

6.      Pipe distribution system. The water mains are to be of adequate size to deliver the flows at pressures specified above, but must be at least six (6) inches to supply fire hydrants in business and manufacturing sections and preferably six (6) inches, but no less than four (4) inches to supply fire hydrants in residential sections. In general, in residential sections four (4) inch dead-end mains should not exceed six hundred (600) feet in length, or four (4) inch single loops two thousand (2,000) feet in length. If lengths of loops and dead-ends exceed this, or if pressures are low in some sections due to high elevation, a fire engine pumper of at least three hundred (300) gallons per minute capacity must be provided in the Fire Department. Provide adequate gate valves to sectionalize the system. 

7.      Fire hydrants.  Provide all fire hydrants as required by, and deemed necessary by, the Advisory Board (if active) or the Board of Aldermen of the City of Stockton, spaced not to exceed three hundred (300) feet apart with at least one (1) within three hundred (300) feet of existing fire hydrants in business and manufacturing sections, and not to exceed six hundred (600) feet apart with at least one (1) with six hundred (600) feet of existing fire hydrants in dwelling sections. This spacing is measured by street to fire hydrants. All must have at least two (2) two and one-half (2½) inch outlets and one (1) four and one-half (4½) inch pumper outlets threaded "National Standard", at least four and one-half (4½) inch foot valves and five (5) inch inside diameter barrels; automatic drain valves and six (6) inch pipe connections to six (6) inches or larger water mains and four (4) inch pipe connections to four (4) inch water mains. Connections should be gated to permit repair of hydrants without shutting off system.     

Section 705.130.  Emergency Regulations. [CC 1979 §90.220] 

A.     The City reserves the right at any time and without notice to shut off the water in any main for the purpose of making repairs or extension or for any other purpose. Provided however, it shall be the duty of the Supervisor to notify all persons using boilers for steam purposes, to which the supply of water is direct, of the intention of the City to so shut off the water for any such purpose. 

B.     The use of water from private hydrants during a fire in the City is hereby prohibited, and all water takers are hereby required immediately upon an alarm of fire to close their hydrants and to keep the same closed until the fire is extinguished. 

C.     Any person who shall ride or drive over any fire hose of the City in any vehicle of any kind or in any other manner shall be deemed guilty of a misdemeanor and shall be fined a sum not less than twenty dollars ($20.00) nor more than two hundred dollars ($200.00).   

Section 705.140.  Wells Prohibited — Penalties for Violation. [Ord. No. 280 §90.229, 12-11-2000] 

A.     It is the intent and purpose of the City of Stockton to protect the safety, welfare and health of its citizens and the public. It is, therefore, provided that no person or entity, except the City, shall hereafter drill, dig, bore or otherwise construct, enlarge or deepen a well, cistern, hole, pit, pond or other similar structure for the purpose of furnishing potable water to persons, premises or operations within the City. Further, to protect the quality of the supply of City water and the integrity of the City water system, no entry into the water strata or aquifer supplying City water and its system is allowed within the City by persons or entities, except the City, at any time or place. 

B.     Every abandoned, depleted or contaminated well, cistern, hole, pit, pond or similar structure shall be filled and sealed in accordance with the recommendations of the State of Missouri Department of Natural Resources groundwater geologist. This Subsection is not intended to apply to pilings, construction holes or excavations that are filled with an impervious or solid substance or to mines, pits, tipples or similar operations that are actively supervised and used in a safe manner. 

C.     Conviction of acts prohibited by or violations of this Section will be punished pursuant to the provisions of Section 100.220 of the City Code.     

ARTICLE III. ADMINISTRATION AND ENFORCEMENT

Section 705.150.  Mayor Authorized to Sign Contracts, Other Documents — Water System Improvements. [Ord. No. 103 §90.227, 9-11-1989]

The Mayor shall be authorized to sign any and all contracts or other documents necessary to perform and complete said improvements to the City's water system. 

Section 705.160.  Water Violation Penalty. [Ord. No. 75 §90.226, 10-12-1987] 

A.     Any person found violating any provision of Articles I and II of this Chapter shall be served by the City with written notice stating the nature of the violation and providing a reasonable time limit for the satisfactory correction thereof. The offender shall, within the period of time stated in such notice, permanently cease all violations. 

B.     Any person who shall continue any violation beyond the time limit provided for herein shall be guilty of a misdemeanor and on conviction thereof shall be fined in the amount not less than one hundred dollars ($100.00) and not exceeding five hundred dollars ($500.00) for each violation. Each day in which any such violation shall continue shall be deemed a separate offense. 

C.        Any person violating any of the provisions of Articles I and II of this Chapter shall become liable to the City for any expense, loss or damage occasioned the City by reason of such violation.   

ARTICLE IV. LEAD BAN POLICY

Section 705.170.  Purpose. [Ord. No. 133 §1, 6-24-1991] 

A.     The purpose of the Article is: 

1.      To ban the use of lead materials in the public drinking water system and private plumbing connected to the public drinking water system; and 

2.      To protect City residents from lead contamination in the City's public drinking water system and their own private plumbing systems.     

Section 705.180.  Application. [Ord. No. 133 §2, 6-24-1991]

This Article shall apply to all premises served by the public drinking water system of the City of Stockton or privately owned water systems within the City of Stockton that has the possibility of supplying water or making water available to any member of the general public. 

Section 705.190.  Policy. [Ord. No. 133 §3, 6-24-1991] 

A.     This Article is to be reasonably interpreted by the Supervisor of Public Works. The intent is to bar the use of lead base material in the construction or modification of the City's drinking water system or private plumbing connected to the City system. The cooperation of all consumers is required to implement the lead ban. 

B.     If, in the judgment of the Supervisor of Public Works or his/her authorized representative, lead base materials have been used in new construction or modification after July 8, 1991, due notice shall be given to the consumer. The consumer shall immediately comply by having the lead base materials removed from the plumbing system and replaced with lead free materials. If the lead base materials are not removed from the plumbing system, the Supervisor of Public Works shall have the right to discontinue water service to the premises.   

Section 705.200.  Definitions. [Ord. No. 133 §4, 6-24-1991]

The following definitions shall apply in the interpretation and enforcement of this Article: 

CUSTOMER — Any person who receives water from a public water system, except those persons receiving water for resale.  

LEAD BASE MATERIALS — Any material containing lead in excess of the quantities specified in the definition below.  

LEAD FREE  

1.      When used with respect to solder and flux, refers to solders and flux containing not more that two-tenths of one percent (0.2%) lead; and  

2.      When used with respect to pipes and pipe fittings, refers to pipes and pipe fittings containing not more than eight percent (8%) lead.    

PUBLIC WATER SYSTEM — A system for the provision to the public of water for human consumption through pipes or other constructed conveyances, if such system has at least fifteen (15) service connections or regularly serves an average of at least twenty-five (25) individuals daily at least sixty (60) days per calendar year. Such system includes any collection, treatment, storage or distribution facilities used in connection with such system.  

Section 705.210.  Lead Banned From Drinking Water Plumbing. [Ord. No. 133 §5, 6-24-1991] 

A.     No water service connection shall be installed or maintained to any premises where lead base materials were used in new construction or modification of the drinking water plumbing after July 8, 1991. 

B.     If a premises is found to be in violation of Subsection (A), water service shall be discontinued until such time that the drinking water plumbing is lead free. 

C.     Violation of this Article may be prosecuted and result in penalties pursuant to Section 100.220.     

ARTICLE V. CROSS-CONNECTION CONTROL POLICY

Section 705.220.  Cross-Connection — General Policy. [Ord. No. 135 §A, 1-13-1992] 

A.     This Article shall apply to all premises served by the public potable water system of the City of Stockton and all auxiliary water supplies within the City of Stockton. 

B.     This Article will be reasonably interpreted by the Supervisor of Public Works and the Board of Aldermen. The intent is to recognize the varying degrees of hazard and to apply the principle that the degree of protection shall be commensurate with the degree of hazard. 

C.     The cooperation of all consumers is required to implement and maintain the program to control cross-connections. The consumer is responsible, with the advice and input of the Supervisor of Public Works, for preventing contamination of the water system within the consumer's premises. 

D.     If, in the judgment of the Supervisor of Public Works or his/her authorized representative, cross-connection protection is required through either piping modification or installation of an approved backflow prevention device, due notice shall be given to the consumer. The consumer shall immediately comply by providing the required protection at his/her own expense; and failure, refusal or inability on the part of the consumer to provide such protection shall constitute grounds for discontinuing water service to the premises until such protection has been provided.   

Section 705.230.  Definitions. [Ord. No. 135 §B, 1-13-1992]

The following definitions shall apply in the interpretation and enforcement of this Article: 

AIR-GAP SEPARATION — The unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet supplying water to a tank, plumbing fixture, or other device and the overflow level rim of the receptacle. The air-gap separation shall be at least double the diameter of the supply pipe measured vertically above the flood level rim of the vessel, but in no case less than one (1) inch.  

AUXILIARY WATER SUPPLY — Any water source or system (other than the public water supply) that may be available in the building or premises.  

BACKFLOW — The flow, other than in the intended direction, of any foreign liquids, gases or substances into the distribution system of a public water supply.  

BACKFLOW PREVENTION DEVICE — Any device, method or type of construction intended to prevent backflow into a potable water system.  

CONSUMER — The owner(s) or person(s) in control of any premises supplied by or in any manner connected to a public water system or an auxiliary water supply, the person(s) named on the billing information.  

CONTAINMENT — Protection of the public water supply by installing a cross-connection control device or air-gap separation on the main service line to a facility.  

CONTAMINATION — An impairment of the quality of the water by sewage, process fluids, or other materials which could create a hazard to the public health through poisoning, spread of disease by exposure, or otherwise.   

CROSS-CONNECTION — Any physical link, between a potable water supply and any other substance, fluid or source, which makes possible contamination of the potable water supply due to the reversal of flow of the water in the piping or distribution system.   

HAZARD — The potential risk to public health and the adverse effect of the hazard upon the potable water system.  

1.      Health.  Any condition, device or practice in the water supply system and its operation which could create or may create a danger to the health and well-being of the water consumer.  

2.      Plumbing.  A plumbing type cross-connection in a consumer's potable water system that has been properly protected by a vacuum breaker, air-gap separation or backflow prevention device.  

3.      Pollutional.  An actual or potential threat to the physical properties or to the potability of the water system which would constitute a nuisance, or be aesthetically objectionable, or could cause damage to the system or its appurtenances, but would not necessarily be dangerous to health.  

4.      System.  An actual or potential threat of:  

a.      Severe damage to the physical properties of the water system, or  

b.      A pollution or contamination which would have a protracted effect on the quality of the potable water in the system.      

INDUSTRIAL PROCESS SYSTEM — Any system containing a fluid or solution which may be chemically, biologically or otherwise contaminated or polluted in a form or concentration such as would constitute a health, system, pollutional or plumbing hazard if introduced into a potable water supply.  

ISOLATION — Protection of a facility service line by installing a cross-connection control device or air-gap separation on an individual fixture, appurtenance or system.  

POLLUTION — Such contamination or other alteration of the physical, chemical or biological properties of any waters of the State, including change in temperature, taste, color, turbidity or odor of the waters, or such discharge of any liquid, gaseous, solid, radioactive, or other substance into any waters of the State as will or is reasonably certain to create a nuisance or render such waters harmful, detrimental or injurious to public health, safety or welfare, or to domestic, industrial, agricultural, recreational, or other legitimate beneficial uses, or to wild animals, birds, fish or other aquatic life.  

POTABLE WATER SYSTEM — Any publicly or privately owned water system which is satisfactory for drinking, culinary and domestic purposes and is intended to meet the requirements of the Missouri Department of Natural Resources.  

SERVICE CONNECTION — The terminal end of a service line from the public water system. If a meter is installed at the end of the service, then the service connection means the downstream end of the meter.  

Section 705.240.  Cross-Connection Prohibited. [Ord. No. 135 §C, 1-13-1992] 

A.     No water service connection shall be installed or maintained to any premises where actual or potential cross-connections to the public potable or consumer water system may exist unless such actual or potential cross-connections are abated or controlled to the satisfaction of the Supervisor of Public Works and as required by the laws and regulations of the Missouri Department of Natural Resources. 

B.     No connection shall be installed or maintained whereby an auxiliary water supply may enter a public potable or consumer's water system unless such auxiliary water supply and the method of connection and use of such supply shall have been approved by the Supervisor of Public Works and the Missouri Department of Natural Resources. 

C.     No water service connection shall be installed or maintained to any premises in which the plumbing system, facilities and fixtures have not been constructed and installed using acceptable plumbing practices considered by the Supervisor of Public Works as necessary for the protection of health and safety.   

Section 705.250.  Survey and Investigations. [Ord. No. 135 §D, 1-13-1992] 

A.     The consumer's premises shall be open at all reasonable times to the Supervisor of Public Works, or his/her authorized representative, for the conduction of surveys and investigations of water use practices within the consumer's premises to determine whether there are actual or potential cross-connections to the consumer's water system through which contaminants or pollutants could backflow into the public potable water system. 

B.     On request by the Supervisor of Public Works or his/her authorized representative, the consumer shall furnish information on water use practices within his/her premises. 

C.     It shall be the responsibility of the water consumer to conduct periodic surveys of water use practices on his/her premises to determine whether there are actual or potential cross-connections to his/her water system through which contaminants or pollutants could backflow into his/her or the public potable water system.   

Section 705.260.  Type of Protection Required. [Ord. No. 135 §E, 1-13-1992] 

A.     The type of protection required by this Article shall depend on the degree of hazard which exists, as follows: 

1.      An approved air-gap separation shall be installed where the public potable water system may be contaminated with substances that could cause a health hazard. 

2.      An approved air-gap separation or an approved reduced pressure principle backflow prevention device shall be installed where the public potable water system may be contaminated with a substance that could cause a system or health hazard. 

3.      An approved air-gap separation or an approved reduced pressure principle backflow prevention device or an approved double-check valve assembly shall be installed where the public potable water system may be polluted with substances that could cause a pollutional hazard not dangerous to health.     

Section 705.270.  Where Protection Is Required. [Ord. No. 135 §F, 1-13-1992] 

A.     An approved backflow prevention device shall be installed on each service line to a consumer's water system serving premises where, in the judgment of the Supervisor of Public Works or the Missouri Department of Natural Resources, actual or potential hazards to the public potable water system exist. The type and degree of protection required shall be commensurate with the degree of hazard. 

B.     An approved air-gap separation or reduced pressure principle backflow prevention device shall be installed at the service connection or within any premises where, in the judgment of the Supervisor of Public Works or the Missouri Department of Natural Resources, the nature and extent of activities on the premises, or the materials used in connection with the activities, or materials stored on the premises would present an immediate and dangerous hazard to health should a cross-connection occur, even though such cross-connection may not exist at the time the backflow prevention device is required to be installed. This includes, but is not limited to, the following situations: 

1.      Premises having an auxiliary water supply, unless the quality of the auxiliary supply is acceptable to the Supervisor of Public Works and the Missouri Department of Natural Resources. 

2.      Premises having internal cross-connections that are not correctable, or intricate plumbing arrangements which make it impractical to ascertain whether or not cross-connections exist. 

3.      Premises where entry is restricted so that inspections for cross-connections cannot be made with sufficient frequency or at sufficiently short notice to assure the cross-connections do not exist. 

4.      Premises having a repeated history of cross-connections being established or re-established. 

5.      Premises, which due to the nature of the enterprise therein, are subject to recurring modification or expansion. 

6.      Premises on which any substance is handled under pressure so as to permit entry into the public water supply, or where a cross-connection could reasonably be expected to occur. This shall include the handling of process waters and cooling waters. 

7.      Premises where materials of a toxic or hazardous nature are handled such that if backsiphonage or backpressure should occur, a serious health hazard may result. 

8.      The following types of facilities unless all hazardous or potentially hazardous conditions have been eliminated or corrected by other methods to the satisfaction of the Supervisor of Public Works and the Missouri Department of Natural Resources: 

a.      Aircraft and missile plants. 

b.      Automotive plants. 

c.      Auxiliary water systems. 

d.      Beverage bottling plants. 

e.      Breweries. 

f.       Building complexes. 

g.      Canneries, packing houses and reduction plants. 

h.      Car washing facilities. 

i.       Chemical manufacturing, processing, compounding or treatment plants. 

j.       Chemically contaminated water systems. 

k.      Civil works. 

l.       Dairies and cold storage plants. 

m.     Film laboratories. 

n.      Fire protection systems. 

o.      Hazardous waste storage and disposal sites. 

p.      Hospitals, mortuaries, clinics. 

q.      Irrigation and sprinkler systems. 

r.       Laundries and dye works. 

s.       Metal manufacturing, cleaning, processing and fabricating plants. 

t.       Oil and gas production, storage or transmission properties. 

u.      Paper and paper products plants. 

v.      Plating plants. 

w.     Power plants. 

x.      Printing and publishing facilities. 

y.      Radioactive material processing plants or nuclear reactors. 

z.      Research and analytical laboratories. 

aa.     Rubber plants — natural and synthetic. 

ab.    Sand and gravel plants. 

ac.     Schools and colleges. 

ad.    Sewage and storm drainage facilities — pumping stations. 

ae.     Waterfront facilities and industries. 

af.     Zoological and horticultural gardens.       

Section 705.280.  Backflow Prevention Devices. [Ord. No. 135 §G, 1-13-1992] 

A.     Any backflow prevention device required by this Article shall be of a model or construction approved by the Supervisor of Public Works and the Missouri Department of Natural Resources. 

1.      Air-gap separation to be approved shall be at least twice the diameter of the supply pipe, measured vertically above the top rim of the vessel, but in no case less than one (1) inch. 

2.      A double-check valve assembly or a reduced pressure principle backflow prevention device shall appear on the current "list of approved backflow prevention devices" established by the Missouri Department of Natural Resources.   

B.     Existing backflow prevention devices approved by the Supervisor of Public Works at the time of installation and properly maintained shall, except for inspection and maintenance requirements, be excluded from the requirements of this Article so long as the Supervisor of Public Works is assured that they will satisfactorily protect the water system. Whenever the existing device is moved from its present location, or requires more than minimum maintenance, or when the Supervisor of Public Works finds that the maintenance constitutes a hazard to health, the unit shall be replaced by a backflow prevention device meeting the requirements of this Article.   

Section 705.290.  Installation. [Ord. No. 135 §H, 1-13-1992] 

A.     Backflow prevention devices required by this Article shall be installed at a location and in a manner approved by the Supervisor of Public Works and shall be installed at the expense of the water consumer. 

B.     Backflow prevention devices installed on the service line to the consumer's water system shall be located on the consumer's side of the water meter, as close to the meter as is reasonable, practical and prior to any other connection. 

C.     Backflow prevention devices shall be located so as to be readily accessible for maintenance and testing, protected from freezing, and where no part of the device will be submerged or subject to flooding by any fluid.   

Section 705.300.  Inspection and Maintenance. [Ord. No. 135 §I, 1-13-1992] 

A.     It shall be the duty of the consumer at any premises on which the backflow prevention devices required by this Article are installed to have inspections, tests and overhauls made in accordance with the following schedule or more often where inspections indicate a need. 

1.      Air-gap separations shall be inspected at the time of installation and at least every twelve (12) months thereafter. 

2.      Double-check valve assemblies shall be inspected and tested for tightness at the time of installation and at least every twelve (12) months thereafter. They shall be dismantled, inspected internally, cleaned and repaired whenever needed and at least every thirty (30) months. 

3.      Reduced pressure principle backflow prevention devices shall be inspected and tested for tightness at the time of installation and at least every twelve (12) months thereafter. They shall be dismantled, inspected internally, cleaned and repaired whenever needed and at least every five (5) years.   

B.     Inspections, tests and overhauls of backflow prevention devices shall be made at the expense of the water consumer and shall be performed by the Supervisor of Public Works or a State of Missouri Certified Backflow Prevention Device Tester. 

C.     Whenever backflow prevention devices required by this Article are found to be defective, they shall be repaired or replaced at the expense of the consumer without delay. 

D.     The water consumer must maintain a complete record of each backflow prevention device from purchase to retirement. This shall include a comprehensive listing that includes a record of all tests, inspections and repairs. Records of inspections, tests, repairs and overhauls shall be made available to the Supervisor of Public Works upon request. 

E.      Backflow prevention devices shall not be by-passed, made inoperative, removed, made ineffective or otherwise modified without specific authorization by the Supervisor of Public Works.   

Section 705.310.  Violations. [Ord. No. 135 §J, 1-13-1992] 

A.     The Supervisor of Public Works shall deny or discontinue, after reasonable notice to the occupants thereof, the water service to any premises wherein any backflow prevention device required by this Article is not installed, tested and maintained in a manner acceptable to the Supervisor of Public Works, or if it is found that the backflow prevention device has been removed or by-passed or if an unprotected cross- connection exists on the premises. 

B.     Water service to such premises shall not be restored until the consumer has corrected or eliminated such conditions or defects in conformance with this Article to the satisfaction of the Supervisor of Public Works. 

C.     Violations may also be prosecuted and subject to the general penalties provided for in Section 100.220 of this Code.     

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