Chapter 13.08 SEWER SERVICE SYSTEM

"Apartment" means any single dwelling unit designed for occupancy in the same building with other units and having separate kitchen facilities in each said unit, and includes multiple residence units having such facilities.

"BOD" (denoting biochemical oxygen demand) means the quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at twenty degrees C, expressed in milligrams per liter.

"Building drain" means 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 feet outside the inner face of the building wall.

"City" means the city of Wapato.

"Cooling water" or "uncontaminated cooling water" or "noncontact cooling water" means water used for cooling purposes which does not come into direct contact with any raw material, intermediate product, waste product or finished product, and that contains no additives, pollutants, toxics or dangerous wastes.

"Domestic water" or "domestic water system" means that water, and water system in which it is carried, which is for human consumption and normal household and business or industrial uses provided from the city’s supply.

Dwelling Unit, Multiple. "Multiple dwelling unit" means a building or arrangement of buildings or portions thereof, used or intended to be used as the home of two or more families or householders living independently of each other.

Dwelling Unit, Single-Family. "Single-family dwelling unit" means a building arranged or designed to be occupied by not more than one family or householder.

"Garbage" means solid wastes from the preparation, cooking and dispensing of food, and from the handling, storage and sale of produce. "Garbage" also includes "properly shredded garbage."

Garbage, Properly Shredded, or Properly Shredded Garbage. "Properly shredded garbage" means the wastes from the preparation, cooking and dispensing of food that has been shredded to such degree that all particles will be carried freely under the flow conditions normally prevailing in public sewers, with no particle greater than one-half inch (1.27 centimeters) in any dimension.

"Industrial user" means industrial facility that generates industrial wastes and discharges those wastes to the sewer.

"Industrial wastes" means the liquid wastes from industrial processes, as distinct from sanitary sewage.

"Large industrial or commercial user" means an industry or commercial establishment discharging sewage or industrial wastes in excess of five thousand gallons per day on an average annual flow basis, or as determined by the city to be discharging water, sewage, wastewater, or industrial waste with unusual BOD, chemical oxygen demand, suspended solids, or chlorine requirements in such quantities as to constitute a significant load on the sewage treatment works.

"Milligrams per liter" (abbreviated as mg/l) means the weight of any substance expressed in milligrams contained within one liter.

"Natural outlet" means any outlet into a watercourse, pond, ditch, lake or other body of surface water or groundwater.

"Person" means any individual, firm, company, association, society, corporation or group.

"pH" means the logarithm of the reciprocal of the weight of hydrogen ions in grams per liter of solution.

"Public works director" means the public works director of the city, or his authorized deputy, agent or representative.

"Sewage" means a combination of the water-carried wastes from residences, business buildings, institutions and industrial establishments, together with such groundwaters, surface waters and stormwaters as may be present.

"Sewage treatment plant" means any arrangement of devices and structures used for treating sewage.

"Sewage works" means all facilities for collecting, pumping, treating and disposing of sewage.

"Sewer" means a pipe or conduit for carrying sewage.

Sewer, Building. "Building sewer" means the extension of the sewer from the building drain to the public sewer or other place of disposal. A building sewer shall be owned, constructed, installed, operated and maintained by a person and is not a portion of the public sewer.

Sewer, Combined. "Combined sewer" means a sewer receiving both surface runoff and sewage.

Sewer, Private. "Private sewer" means the sewer line and disposal system owned, constructed, installed, operated and maintained by a person where connection with the public sewer system is not required, and is not regulated by this title.

Sewer, Public. "Public sewer" means a sewer in which all owners of abutting properties have equal rights, and is controlled by public authority.

Sewer, Sanitary. "Sanitary sewer" means a sewer which carries sewage and industrial waste to the sewage treatment plant, and to which stormwaters, surface waters and groundwaters are not intentionally admitted.

Shall and May. The word "shall" is mandatory. The word "may" is permissive.

"Sludge" means any discharge of industrial wastes which in concentration of any given component or in quantity of flow is more than five times the average twenty-four-hour concentration or average twenty-four-hour flow during the industrial user’s normal operation. The industrial monitoring records from a similar period of operation shall be used to determine the average twenty-four-hour concentration of flow under normal operations.

"Storm sewer" or "storm drain" means a sewer which carries stormwaters, surface waters and drainage, but excludes sewage and industrial wastes other than unpolluted cooling water. For the purposes of this chapter, the city’s "industrial drain" is a storm sewer.

"Suspended solids" means solids that either float on the surface of, or are in suspension in, water, sewage, industrial wastes, or other liquids, which are removable by laboratory filtering, are determined by quantitative standard laboratory procedures, and are expressed in milligrams per liter.

"Uniform Plumbing Code" means the materials and procedures set forth in appropriate specifications of the latest version of the Uniform Plumbing Code developed by the International Association of Plumbing and Mechanical Officials.

"Watercourse" means a channel in which a flow of water occurs either continuously or intermittently. (Ord. 1258 §3, 2011: Ord. 1257 §1Z, 2011: Ord. 1023 §3(part), 1996)

13.08.020 Unsanitary disposal of wastes prohibited.

It is unlawful for any person to place, deposit or permit to be deposited in an unsanitary manner upon public or private property within the city, or in any area under the jurisdiction of the city, any human or animal excrement, garbage or other objectionable waste. (Ord. 1023 §3(part), 1996)

13.08.030 Discharge of sewage into natural outlet.

It is unlawful to discharge to any natural outlet or storm sewer within the city, or in any area under the jurisdiction of the 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. (Ord. 1023 §3 (part), 1996)

13.08.040 Use of private sewage disposal facilities restricted.

Except as provided in this chapter, it is unlawful to construct or maintain any privy, privy vault, septic tank, cesspool, or other facility intended or used for the disposal of sewage. (Ord. 1023 §3(part), 1996)

13.08.050 Private sewage disposal systems--When permitted.

Where a public sanitary or combined sewer is not available under the provisions of Section 13.08.120, the building sewer shall be connected to a private sewage disposal system complying with the provisions of this chapter and Chapter 246-272A WAC. (Ord. 1257 §1AA, 2011: Ord. 1023 §3(part), 1996)

13.08.060 Private sewage disposal systems--Permit required--Application and fee.

A. Before commencement of construction of a private sewage disposal system, the owner shall first obtain a written permit from the Yakima health district.

B. A copy of the application shall be forwarded to the public works director at the time it is filed with the Yakima health district, and the public works director may contact the Yakima health district regarding the application. (Ord. 1257 §1BB, 2011: Ord. 1023 §3(part), 1996)

13.08.070 Private sewage disposal systems--Inspection of installation.

Inspection of private sewage disposal systems shall be done in compliance with Chapter 246-272A WAC and Yakima health district rules, regulations and procedures. (Ord. 1257 §1CC, 2011: Ord. 1023 §3(part), 1996)

13.08.080 Private sewage disposal systems--Compliance with county standards--Field test and site survey--Discharge of effluent.

A. The type, capacities, location and layout of a private sewage disposal system shall comply with all recommendations of the Yakima health district.

B. Field tests and a site survey shall be made before any permit is issued for any private sewage disposal system employing subsurface soil absorption facilities.

C. No septic tank or cesspool shall be permitted to discharge to any public sewer or natural outlet. (Ord. 1257 §1DD, 2011: Ord. 1023 §3 (part), 1996)

13.08.090 Private sewage disposal systems--Abandonment and connection to public sewer.

At such time as a public sewer becomes available to a property served by a private disposal system, as provided in Section 13.08.120, regardless of whether the private sewage disposal system has failed, as that term is defined in WAC 246-272A-0010, a direct connection shall be made to the public sewer in compliance with this title, and any septic tanks, cesspools and similar private sewage disposal facilities shall be abandoned and filled with suitable material at the expense of the property owner. Abandonment of the private disposal system shall comply with all recommendations and requirements of the Yakima health district. (Ord. 1257 §1EE, 2011: Ord. 1023 §3(part), 1996)

13.08.100 Private sewage disposal systems--Operation and maintenance.

The owner shall operate and maintain the private sewage disposal facilities in a sanitary manner at all times, at no expense to the city. (Ord. 1023 §3(part), 1996)

13.08.110 Private sewage disposal systems--Additional requirements.

No statement contained in this chapter shall be construed to interfere with any additional requirements that may be imposed by the Yakima health district or any of its health officers. (Ord. 1257 §1FF, 2011: Ord. 1023 §3 (part), 1996)

13.08.120 Connection to available public sewer required after notice.

The owner of each house, building or property used for human occupancy, employment, recreation, commercial or industrial activity, or other purpose, 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 required at his expense to install suitable toilet facilities therein, and to connect such facilities directly with the proper public sewer in accordance with the provisions of this title and Chapter 246-272A WAC, within ninety days after date of official notice to do so; provided, that said public sewer is within one hundred feet of the property line. (Ord. 1257 §1GG, 2011: Ord. 1023 §3(part), 1996)

13.08.130 Connection made by city--Assessment of expense.

In the event the building sewer and connection are not made within the time provided for in Section 13.08.120 following notice, the public works director is authorized and directed to cause the connection to be made. After connection is made, the public works director shall file a statement of the cost thereof, including, but not limited to, labor and materials, with the city clerk/treasurer, and thereupon a lien shall be placed on the property and the city may use whatever means it wishes to collect that lien as allowed by law.

The cost of connection, including but not limited to labor and materials, together with a penalty of ten percent of the total costs, plus interest at the rate of twelve percent per year, compounded monthly, upon the total amount of the cost and penalty, shall be assessed against the property upon which such building sewer and connection has not been placed as required, and shall become a lien thereon as herein provided. (Ord. 1257 §1HH, 2011: Ord. 1023 §3(part), 1996)

13.08.140 Permit required to make connection to public sewer.

No unauthorized 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 public works director. (Ord. 1023 §3(part), 1996)

13.08.150 Classes of sewer permits--Application and fee.

A. There shall be two classes of building sewer permits:

1. For residential and commercial service; and

2. For service for establishments producing industrial wastes.

B. In either case, the owner or his authorized 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 public works director. A permit and inspection fee for a residential or commercial building sewer permit, and for an industrial building sewer permit, shall be paid to the city clerk/treasurer at the time the application is filed. In the event that one permit is issued for a single connection serving more than one residence or commercial user, then the total sewer connection permit fee shall equal the number of such users on the connection times the permit and inspection fee for a single user.

C. Application for the permit required by the foregoing subsection shall be filed with the city, stating the name of the owner, the correct address and proper legal description of the property to be served, the Yakima County tax assessor’s office parcel number, dimensions and locations of any buildings on the property, the whole course of the building sewer from the public sewer to its connection with the building or property to be served, and other such plans and information as may be required. The application shall be submitted to the city for approval, which may change or modify the same and designate the manner and place in which such sewers shall be connected with the public sewer, and shall endorse approval upon the application if the same is acceptable.

D. Upon approval of the application and issuance of the permit, it is unlawful to alter the permit or to perform any work other than is provided for in the permit.

E. It is unlawful to disconnect any building sewer or remove any portion of a building sewer without securing a permit from the city to do so. The disconnected service shall be plugged at the property line to the satisfaction of the public works director.

F. No permit issued under this chapter shall be valid for a period longer than ninety days unless extended or renewed by the public works director upon application therefor prior to the expiration of the permit.

G. The permit required by this chapter must, at all times during the performance of the work and until the completion thereof and approval by the city, be posted in some conspicuous place at or near the work and must be readily and safely accessible to the public works director or his representative.

H. No building sewer contractor or owner, agent, occupant or tenant of any building or property shall break, alter or tamper with any public sewer, except that he may tie into a connection which exists for that purpose under the supervision of the public works director, as allowed for under this chapter. (Ord. 1257 §1II, 2011: Ord. 1023 §3(part), 1996)

13.08.160 Expense of connection borne by owner--Liability for damage.

All costs and expense incidental to the installation and connection of the building sewer shall be borne by the owner of the premises in question. The owner shall indemnify the city against any loss or damage that may directly or indirectly be occasioned by the installation of the building sewer. (Ord. 1257 §1JJ, 2011: Ord. 1023 §3(part), 1996)

13.08.170 Separate sewer for each building.

A separate and independent building sewer shall be provided for every building; except, that where one building stands at the rear of another on an interior lot and no public 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 building sewer. Further requirements for a separate sewer are as follows:

A. In making all connections with the public sewer system, each property capable of title transfer and each residence or business located on any one property and not joined with other property thereon inseparable shall be considered as an individual consumer and each individual consumer shall be supplied through a separate service connection, provided, however, that in case of duplexes or businesses or apartments not being capable of separate title transfer, the owner thereof may nevertheless by arrangement with the city provide for the property multiple service connections to serve each of the various units located thereon. All buildings, although joined together by party wall or similar attachment, if capable of separate title transfer, shall have, for each divisible part thereof, separate service connections.

B. Provided, however, where more than one such building is located on a lot or parcel of land not larger than fifty feet in width and one hundred fifty feet in depth and all such buildings may be served by one sewer connection, only one connection for such building need be made.

C. If a building sewer is to serve more than one property by joint agreement of the owners, an approved document insuring that all properties involved shall have perpetual use of the building sewer, and having provisions for maintenance and for access for repair purposes, shall be signed by the recorded owners.

D. This document shall be notarized and recorded with the public works and utilities division and shall be referred to as an “easement.” (Ord. 1023 §3(part), 1996)

13.08.180 Use of old sewers.

Old building sewers may be used in connection with new buildings only when they are found, on examination, inspection and testing by the public works director, to meet all requirements of this title. (Ord. 1257 §1KK, 2011: Ord. 1023 §3 (part), 1996)

13.08.190 Specifications.

A. The size, slope, alignment, materials 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 resolutions of the city. In the absence of code provisions or in amplification thereof, the materials and procedures set forth in appropriate specifications of the latest version of the Standard Specifications for Road, Bridge and Municipal Construction (developed by the Washington State Department of Transportation and the Washington State Chapter of the American Public Works Association), the American Society of Testing Materials, and the Water Environment Federation Manual of Practice No. 9 shall apply.

B. The size and slope of the building sewer shall be subject to the approval of the public works director, but in no event shall the diameter be less than is provided by the Uniform Plumbing Code described in this section. (Ord. 1023 §3(part), 1996)

13.08.200 Use of backwater valve required.

A. A backwater valve shall be installed in all building sewers, including all existing building sewers. The backwater valve shall be of the type and design as to effectively prevent the back-flow of sewage from the public sewer through the building sewer, caused by plugging of the public sewer or through normal operation of the public sewer, including cleaning activities. The backwater valve shall be installed at a location in the building sewer such that access to the valve will be on private property and no construction within the public right-of-way will be required to access, install, operate or maintain the backwater valve.

B. All costs associated with the purchase, installation, operation and maintenance of the backwater valve shall be borne by the owner of the building sewer. Effective operation of the backwater valve shall be the responsibility of the owner.

C. The owner shall indemnify the city against any loss or damage that may be occasioned by the failure to install, maintain or replace a backwater valve, or the failure of an installed valve. (Ord. 1257 §1LL, 2011: Ord. 1023 §3(part), 1996)

13.08.210 Elevation, location, depth, alignment and changes in direction.

Whenever possible, the building sewer shall be brought to the building at an elevation below the basement floor. No building sewer shall be laid parallel to or within three feet of any bearing wall, which might thereby be weakened. The depth shall be sufficient to afford protection from frost. The building sewer shall be laid at uniform grade and in straight alignment in so far as possible. Changes in direction shall be made with properly curved pipe and fittings, and cleanouts shall be provided as required by the specifications. (Ord. 1023 §3(part), 1996)

13.08.220 Artificial means required where gravity flow not possible.

In all buildings in which any building drain is too low to permit gravity flow to the public sewer, sewage carried by such drain shall be lifted by approved artificial means and discharged to the building sewer. (Ord. 1023 §3(part), 1996)

13.08.230 Excavation of trenches and backfill.

All excavation required for the installation of a building sewer shall be open trench work, unless otherwise approved by the public works director. Pipe laying and backfill shall all conform to the requirements of the building and plumbing code or other applicable rules and regulations of the resolutions of the city. In the absence of code provisions or in amplification thereof, the materials and procedures set forth in appropriate specifications of the latest version of the Standard Specifications for Road, Bridge and Municipal Construction (developed by the Washington State Department of Transportation and the Washington State Chapter of the American Public Works Association), the American Society of Testing Materials, and the Water Environment

Federation Manual of Practice No. 9 shall apply; except, that no backfill shall be placed until the work has been inspected. (Ord. 1023 §3(part), 1996)

13.08.240 Joints and connections.

A. All joints and connections shall be made gastight and watertight.

B. The connection of the side sewer into the public sewer shall conform to the requirements of the building and plumbing code or other applicable rules and regulations of the city of the procedures set forth in appropriate specifications of the Standard Specifications for Road, Bridge and Municipal Construction (developed by the Washington State Department of Transportation and the Washington State Chapter of the American Public Works Association), the American Society of Testing Materials, and the Water Environment Federation Manual of Practice No. 9.

C. All joints in vitrified clay pipe, or other approved nonmetallic pipe or between such pipe and metals, shall be made in a manner approved by the public works director.

D. Other jointing materials and methods may be used only by approval of the public works director. (Ord. 1023 §3 (part), 1996)

13.08.250 Connection to public sewer--Construction specifications.

The connection of the building sewer into the public sewer shall be made at the Y branch, if such branch is available at a suitable location. If the public sewer is twelve inches in diameter or less, and no properly located Y branch is available the owner shall at his expense install a Y branch in the public sewer at the location specified by the public works director. Where the public sewer is greater than twelve inches in diameter, and no properly located Y branch is available, a neat hole may be cut into the public sewer, with entry in the downstream direction at an angle of about forty-five degrees. A saddle type tee or wye, approved by the public works director, shall be used to make the connection with no portion of the pipe extending past the inner surface of the public sewer. The invert of the building sewer at the point of connection shall be at the same or at a higher elevation than the invert of the public sewer. A smooth, neat joint shall be made, and the connection made secure and watertight by encasement in concrete. Special fittings may be used for the connection only when approved by the public works director. (Ord. 1023 §3(part), 1996)

13.08.260 Connection to public sewer--Notice of readiness and supervision.

The applicant for the building sewer permit shall notify the public works director when the building sewer is ready for inspection and connection to the public sewer. The connection shall be made under the supervision of the public works director or his representative. Additional requirements for the connection include the following:

A. The public works director or his representative shall inspect all connections, including piping, valves and other appurtenances connected thereto, and the premises served thereby, within two working days, if possible, and/or at regular intervals and as often as necessary.

B. No building sewer trench shall be filled or any sewer covered until the work shall have been inspected and approved by the public works director or his representative.

C. If the public works director or his representative finds the work or materials used are not in accordance with previous approval or permit, the public works director or his representative shall notify the person doing the work and/or owner or occupant of the premises by letter and posting of notice on the property.

D. If any work done under a permit granted as provided herein is not done in accordance with the provisions of this chapter and the plans and specifications approved by the city, or when any building sewer is constructed, laid, connected or repaired and does not comply with the provisions of this chapter, or where it is determined by the city that a building sewer is obstructed, broken or inadequate and is a menace to health, or is liable to cause damage to the sewer system, or subsection C of this section is violated, then, after notice by the public works director or his representative, the contractor, owner or person doing the work, as the case may be, refuses to properly construct, repair or complete such work within the time specified in such notice, the city shall disallow connection to the public sewer system until such time that all such work allowed under the permit has been done in accordance with the provisions of this chapter. (Ord. 1023 §3(part), 1996)

13.08.270 Barricades, lights and restoration-Indemnification of city.

A. All excavations for building sewer installation shall be guarded with barricades and lights and such other precautions as are reasonably adequate to protect the public from accident and injury. Streets, sidewalks, parkways and other public property disturbed in the course of the work shall be restored in a manner satisfactory to the city.

B. A performance bond or deposit in an amount equal to one hundred ten percent of the estimated cost of work performed within the public right-of-way or utility easements, as approved by the public works director, but in no event less than five hundred dollars, shall be furnished and deposited with the city to indemnify the city against any loss, damage or liability in connection with such sewer work.

C. Public liability and property damage insurance, with insurance companies or through sources approved by the State Insurance Commissioner pursuant to RCW Title 48, shall be obtained for all work performed within the public right-of-way or utility easements. (Ord. 1023 §3(part), 1996)

13.08.280 Inappropriate connections prohibited.

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. (Ord. 1023 §3(part), 1996)

13.08.290 Stormwater, etc., prohibited in sanitary sewer.

No person shall discharge or cause to be discharged any stormwater, surface water, groundwater, roof runoff, subsurface drainage or cooling water to any sanitary sewer. (Ord. 1023 §3(part), 1996)

13.08.300 Stormwater, etc., discharged to storm sewer, combined sewer or natural outlet.

Stormwater and all other unpolluted drainage shall be discharged to such sewers as are specifically designated as combined sewers or storm sewers, or to a natural outlet approved by the public works director. Industrial cooling water or unpolluted process waters may be discharged, upon approval of the public works director, to a storm sewer, combined sewer or natural outlet. (Ord. 1023 §3(part), 1996)

13.08.310 Harmful wastes prohibited in public sewer.

A. Except as provided in this chapter, no person shall discharge or cause to be discharged any of the following described waters or wastes to any public sewer:

1. Any liquid or vapor having a temperature higher than one hundred fifty degrees F;

2. Any water or waste containing fats, grease or oils, whether emulsified or not, in excess of one hundred milligrams per liter, or containing substances which may solidify or become viscous at temperatures between thirty-two and one hundred fifty degrees F;

3. Any gasoline, benzene, naphtha, fuel oil or other flammable or explosive liquid, solid or gas;

4. Any garbage that does not meet the definition of properly shredded garbage;

5. Any ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feather, tar, plastics, wood, paunch manure, or any other solid or viscous substance capable of causing obstruction to the flow in sewers or other interference with the proper operation of the sewage works;

6. Any waters or wastes having a pH lower than five or higher than eleven or having any other corrosive property capable of causing damage or hazard to structures, equipment and personnel of the sewage works;

7. Any waters or wastes containing toxic or poisonous substances in sufficient quantity, either single or by interaction with other wastes, to injure or interfere with any sewage treatment process or constitute a hazard to humans or animals, create a public nuisance, or create any hazard in the receiving waters of the sewage treatment plant, including but not limited to cyanides in excess of two milligrams per liter;

8. Any waters or wastes containing suspended solids of such character and quantity that unusual attention or expense is required to handle such material at the sewage treatment plant;

9. Any noxious or malodorous gas or substance capable of creating a public nuisance;

10. Any cleaning or disinfectant chemicals which destroy or retard the organisms which are essential to the efficient operation of the sewage works and sewage treatment plant; any such cleaning or disinfectant chemical proposed for use together with its chemical composition shall be submitted to the public works director for evaluation prior to usage;

11. Any septic tank waste;

12. Any waters or wastes containing strong acid iron pickling wastes, or concentrated plating solutions whether neutralized or not;

13. Any waters or wastes containing phenols or other taste-or-odor producing substances, in such concentrations exceeding limits which may be established by the public works director as necessary, after treatment of the composite sewage, to meet the requirements of the state, federal or other public agencies of jurisdiction for such discharge to the receiving waters;

14. Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the public works director in compliance with applicable state or federal regulations;

15. Any waters or wastes containing iron, chromium, copper, zinc, and similar objectionable or toxic substances; or wastes exerting an excessive chlorine requirement, to such degree that any such material received in the sewage at the sewage treatment plant exceeds the limits established by the public works director;

16. Materials which exert or cause:

a. Unusual concentrations of inert suspended solids (such as, but not limited to, Fuller’s earth, lime slurries and lime residues) or of dissolved solids (such as, but not limited to, sodium chloride and sodium sulfate),

b. Excessive discoloration (such as, but not limited to, dye wastes and vegetable tanning solutions),

c. Unusual BOD, chemical oxygen demand or chlorine requirements in such quantities as to constitute a significant load on the sewage treatment plant,

d. Unusual flow or concentration of wastes constituting "sludges" as defined in this chapter;

17. Waters or wastes containing substances which are not amenable to treatment by the sewage treatment plant, or are amenable to treatment only to such degree that the sewage treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters.

B. In the event of the discharge or proposed discharge to the sewage works of any waters or wastes which contain the substances or possess the characteristics enumerated in this section, and which in the judgment of the public works director may have a deleterious effect upon the sewage works, sewage treatment plant or receiving waters, or which otherwise create a hazard to life or constitute a public nuisance, the public works director may:

1. Reject the wastes;

2. Require pretreatment to an acceptable condition for discharge to the public sewer;

3. Require control over the quantities and rates of discharge; and/or

4. Require payment to cover the added cost of handling and treating the wastes not covered by existing taxes or sewer charges under the provisions of this title.

C. If the public works director permits the pretreatment or equalization of waste flows, the design and installation of the plant(s) and equipment shall be subject to the review and approval of the public works director, and subject to the requirements of all applicable codes, ordinances and laws.

D. To adequately assess the impact to the sewage works, sewage treatment plant or receiving waters, or the potential hazard to life, or the potential to constitute a public nuisance, written notification shall be given to the public works director. Written notification shall be provided for discharges or proposed discharges as follows:

1. Accidental Discharges. The public works director shall be notified immediately of any accidental discharge. Formal written notification discussing the circumstances and remedies shall be submitted to the public works director within five days of the occurrence. For the purposes of this provision, "accidental discharge" means the inadvertent and unavoidable discharge of any waters or wastes which contain the substances or possess the characteristics enumerated in this section, including sludge discharges.

2. Sludge Discharges. The public works director shall be notified in writing at least five days in advance of any planned sludge discharge. (Ord. 1258 §4, 2011: Ord. 1257 §1MM, 2011: Ord. 1023 §3(part), 1996)

13.08.320 Grease, oil and sand interceptors required--Specifications.

A. Grease, oil and sand interceptors shall be provided when, in the opinion of the public works director, they are necessary for the proper handling of liquid wastes containing grease in excessive amounts, or any flammable wastes, sand and other harmful ingredients; except, that 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 public works director, and shall be so located as to be readily and easily accessible for cleaning and inspection.

B. Grease and oil interceptors shall be constructed of impervious materials capable of withstanding abrupt and extreme changes in temperature. They shall be of substantial construction, watertight and equipped with easily removable covers which, when bolted in place, shall be gastight and watertight. (Ord. 1023 §3(part), 1996)

13.08.330 Maintenance of grease, oil and sand interceptors.

Where installed, all grease, oil and sand interceptors shall be maintained by the owner, at his expense, to provide continuously efficient operation at all times. (Ord. 1023 §3(part), 1996)

13.08.340 Preliminary treatment required for certain wastes--Approval of facilities.

A. The admission into the public sewers of any water or wastes:

1. Having a five-day biochemical oxygen demand greater than three hundred milligrams per liter; or

2. Containing more than three hundred fifty milligrams per liter, of suspended solids; or

3. Containing any quantity of substances having the characteristics described in Section 13.08.310; or

4. Having an average daily flow greater than two percent of the average daily sewage flow of the city; shall be subject to the review and approval of the city.

B. Where necessary in the opinion of the public works director, the owner shall provide, at his expense, such preliminary treatment as may be necessary to:

1. Reduce the biochemical oxygen demand to three hundred milligrams per liter and the suspended solids to three hundred fifty milligrams per liter; or

2. Reduce objectionable characteristics or constituents to within the maximum limits provided for in Section 13.08.310; or

3. Control the quantities and rates of discharge of such waters or wastes.

C. Plans, specifications and any other pertinent information relating to proposed preliminary treatment facilities shall be submitted for the approval of the public works director and of the appropriate state regulatory agency if required, and no construction of such facilities shall be commenced until said approvals are obtained in writing. (Ord. 1023 §3(part), 1996)

13.08.350 Maintenance of preliminary treatment facilities.

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 expense. (Ord. 1023 §3(part), 1996)

13.08.360 Non-city water supply source--Meter required.

Where user is supplied by water from non-city sources, upon demand of the city council, the non-city source of supply shall be metered at the owner’s expense and the city shall have the right of access to the meter. (Ord. 1023 §3(part), 1996)

13.08.370 Monitoring stations.

As determined by the city, large industrial or commercial users will be required to install monitoring stations. If monitoring stations are required, the city shall designate when, where and how many stations shall be installed. Monitoring stations shall be constructed by, and at the expense of the large industrial or commercial user, in accordance with general plans, and a list of acceptable equipment provided by the city. Once installed, the city will own, operate and maintain all monitoring stations. Upgrades in equipment needed to accommodate growth of the user, or replacement of damaged equipment resulting from negligence of the user, shall be at the expense of the large industrial or commercial user. Large industrial or commercial users shall provide unrestricted city access to all monitoring stations. The rates and charges for large industrial or commercial users utilizing monitoring stations shall be based upon the volume, strength and other characteristics of the discharges (as determined through monitoring, measurements, tests, and analyses), and costs associated with the operation and maintenance of the monitoring stations. (Ord. 1023 §3 (part), 1996)

13.08.380 Tests and analysis--Standards.

All measurements, tests and analyses of the volume, strength and characteristics of discharges to which reference is made in Sections 13.08.340B and 13.08.370 shall be determined in accordance with the latest edition of Standard Methods for the Examination of Water and Wastewater, published by the American Public Health Association, and shall be determined through samples collected at, or measurements made at the monitoring stations. In the event that no monitoring station has been required, the nearest downstream manhole shall be considered to be the point where sample collection or measurements are to be made. Sampling shall be carried out by customarily accepted methods to reflect the effect of constituents upon the sewage works and to determine the existence of hazards to life, limb and property. The particular analyses involved will determine whether a twenty-four-hour composite or whether a grab sample should be taken. (Ord. 1023 §3(part), 1996)

13.08.390 Industrial wastes--Special agreement for treatment.

No statement contained in this chapter shall be construed as preventing any special agreement or arrangement between the city and any industrial user whereby an industrial waste of unusual strength or character may be accepted by the city for treatment, subject to payment of all costs, labor and materials necessary for construction for connection to the city sewer system by the industrial user. (Ord. 1257 §1NN, 2011: Ord. 1023 §3(part), 1996)

13.08.400 Industrial wastes--Screening of coarse solids.

Each and every industrial plant, and such other commercial user as the public works director may deem necessary, shall install, operate and maintain satisfactory screens or other devices, approved by the public works director, to screen coarse solids from industrial waste before water is discharged to sewers. (Ord. 1023 §3(part), 1996)

13.08.410 Right of access for inspection.

A. The public works director, his representative, and 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 chapter. The public works director or his representative shall have no authority to inquire into any processes, including metallurgical, chemical, oil, refining, ceramic, paper or other industries beyond that point having a direct bearing on the kind and source of discharge to the sewers or waterways or facilities for waste treatment.

B. While performing the necessary inspection work on private properties, the public works director or his representative shall observe all safety rules applicable to the premises established by the person and the person shall be held harmless for injury or death to the city employees and the city shall indemnify the person against loss and damage to its property by city employees and against liability claims and demands for personal injury or property damage asserted against the person and growing out of the inspection, except as may be caused by negligence or failure of the person or company to maintain safe conditions.

C. The public works director, his representative, 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 an easement for the purposes of, but not limited to, inspection, observation, measurement, sampling, repair, and maintenance of any portion of the sewage works lying within the easement. All entry and subsequent work, if any, on the easement shall be done in full accordance with the terms of the easement and law pertaining to the private property involved.

D. In the event free access during proper hours to all buildings and premises served by the domestic sewage system is denied, the public works director or his employees shall obtain warrants for inspection of pipes, fixtures, and the manner in which the provisions of this title are being complied with from the Wapato municipal court. (Ord. 1257 §1OO, 2011: Ord. 1023 §3(part), 1996)

13.08.420 Damaging sewer system.

No unauthorized person shall maliciously, willfully or negligently break, damage, destroy, uncover, deface or tamper with any structure, appurtenance or equipment which is a part of the public sewer and sewage disposal system. (Ord. 1257 §1PP, 2011: Ord. 1023 §3(part), 1996)

13.08.430 Liability for damage.

Any person who violates any of the provisions of this chapter shall become liable to the city for any expense, loss or damage occasioned by the city by reason of such violation. This liability is in addition to any criminal charges which may arise from the violations of this chapter as further set forth herein. (Ord. 1257 §1QQ, 2011: Ord. 1023 §3(part), 1996)

13.08.440 Violation--Penalty.

Any violation of the provisions of this title shall constitute a misdemeanor. Conviction hereunder shall be punishable by a fine not to exceed one thousand dollars or by imprisonment for a term not to exceed ninety days, or by both such fine and imprisonment. Each day of a continuing violation shall constitute a separate offense. (Ord. 1023 §3(part), 1996)

13.08.450 Document adopted--Copies on file.

Chapters 1, 2, and 3 of the 1985 Edition of the Criteria for Sewage Works Design of the State Department of Ecology are adopted in their entirety as the criteria to be used for city of Wapato sewage works design. A copy of said Chapters 1, 2, and 3 is on file with the city clerk/treasurer. (Ord. 1023 §3(part), 1996)

13.08.460 Amendments and additions.

All future amendments and additions to Chapters 1, 2, and 3 of the 1985 Edition of the criteria described in Section 13.08.450, when printed, and a copy thereof has been filed with the city clerk/treasurer, shall be considered and accepted as amendments and additions to this chapter. (Ord. 1023 §3(part), 1996)

13.08.470 Sewer connections for real property located outside Wapato city limits.

A. Sanitary sewer service connections and facilities may be provided and furnished for property outside the city limits, at the discretion of the mayor and subject to the formation of a local improvement district or utility local improvement district for such connections and facilities unless the same are furnished pursuant to Washington State statute, RCW 35.67.310.

B. Before any work shall be started on the installation of such connection, the applicant for such connection shall deposit with the city clerk/treasurer, in cash or by certified check, such amount as may be required by the city. The applicant shall also sign an outside utility agreement with the city and the city shall record that agreement with Yakima County.

C. After such sum is so deposited, the city engineer shall, at the expense of the city, lay a sanitary sewer line from a connection with the trunk sewer to the property line of the applicant at such point on the applicant’s property line as the city engineer shall deem to be most practical.

D. The city shall be under no duty or obligation to make such connections or to lay any such sewer lines from the sanitary trunk sewers of the city to any property lines, it being the expressed intention of said city to reserve the right to determine whether or not any such sewer lines shall be laid or any such connections made, solely within the judgment and discretion of the city. Should the city engineer determine any application for such a sanitary sewer line to be unfeasible or should the city for any other reason elect not to lay such a sewer line or make such a connection, any deposit made by the applicant for the same shall be returned to the applicant.

E. Nothing contained in this chapter shall be construed as prohibiting the city from assessing the property of any and all such applicants for the cost of any local improvement which shall thereafter provide available lateral sanitary sewer service to such property or properties; provided, however, that any person connected with a trunk sewer in accordance with this chapter shall have the right to elect whether or not to connect to such lateral sanitary sewer when available; provided further, that any election by any applicant not to connect with any such available lateral sanitary sewer shall not prevent the property of the applicant from being included within any local improvement district created for the purpose of providing a lateral sanitary sewer capable of serving the applicant’s property, or prevent such property from being assessed for the proportionate share of any local improvement district created for the purpose of installing such a lateral sanitary sewer. (Ord. 1257 §1RR, 2011: Ord. 1197 §1, 2008)