(1) The city's obligation to dispose of wastewater includes the collection, transportation, treatment, discharge, infiltration, sprinkling and irrigation of wastewater produced in the city area as well as the dewatering and disposal of sewage sludge. According to § 46 Paragraph 1 Sentence 2 Nos. 1 to 6 LWG NRW, the obligation to dispose of wastewater includes in particular

1. the planning of the wastewater development of properties whose buildability has been established in accordance with the German Building Code by a development plan, a project and development plan or a clarification, development and supplementary statute,
2. the collection and transportation of wastewater that accumulates on a property in the municipal area as well as the preparation and updating of plans in accordance with Section 57 (1) sentences 4 and 5 LWG NRW.
3. the treatment and discharge of the wastewater taken over in accordance with No. 2 as well as the treatment of the sewage sludge resulting from the wastewater disposal for its proper utilization or disposal,
4. the construction and operation as well as the extension or adaptation to the requirements of §§ 54 to 61 WHG and § 56 LWG NRW, 60-2 of the facilities required for wastewater disposal in accordance with numbers 2 and 3
5. the collection and removal of the sludge produced in small sewage treatment plants and septic tanks and its treatment for proper recycling or disposal
6. the preparation and submission of the wastewater disposal concept in accordance with § 47 LWG NRW.

(2) The city shall provide the necessary decentralized and centralized facilities as a public facility (public wastewater facilities) for the purpose of wastewater disposal in its area and for the purpose of recycling or disposing of the residues arising from municipal wastewater disposal. The public sewage system also includes decentralized public infiltration systems for precipitation water as well as upstream and downstream ditches, such as roadside ditches or roadside ditches, which have been dedicated as part of the public sewage system.

The public, decentralized and central wastewater systems form a legal and economic unit.

(3) The type, location and scope of the public wastewater system as well as the time of its construction, extension, renewal, modification, renovation or disposal shall be determined by the City within the scope of its wastewater disposal obligations.

(4) In order to partially reimburse the costs for the construction of the public sewage system, connection fees and user fees for the use of the public sewage system, including the emptying of small sewage treatment plants and drainless pits, shall be charged in accordance with a schedule of contributions and fees issued in conjunction with these bylaws.

(5) The wastewater levy for the city's own discharges and for third-party discharges for which the city must pay the levy shall be settled via the user charges.

For the purposes of these bylaws

1. wastewater
Wastewater is wastewater and rainwater within the meaning of Section 54 (1) WHG.

2. wastewater
Wastewater is water whose properties have been altered by domestic, commercial, agricultural or other use and the water that runs off with it in dry weather. Wastewater also includes liquids that are discharged and collected from facilities for treating, storing and depositing waste (Section 54 (1) sentence 1 no. 1 and sentence 2 WHG).

3. precipitation water
Precipitation water is the water collected from precipitation from the area of built-up or paved surfaces (Section 54 (1) sentence 1 no. 2 WHG).

4. combined system
In the combined system, wastewater and rainwater are collected and discharged together.

5. separation system
In the separation system, wastewater and rainwater are collected and discharged separately.

6 Public sewage system

1. The public wastewater system includes all systems operated by the city itself or on its behalf that are used to collect, transport, treat and discharge wastewater as well as to recycle or dispose of the residues produced during municipal wastewater disposal.
2. The public sewage system does not include the connection pipes in accordance with No. 7.
3. In areas in which wastewater disposal is carried out by a pressure drainage network and parts of such a network are located on private properties, the house connection pipes including the pressure stations are not part of the public wastewater system.
4. Small sewage treatment plants and drainless pits in accordance with § 18 are not part of the public sewage system within the meaning of these bylaws.

7. connection pipes
Connection pipes within the meaning of these bylaws are property connection pipes, house connection pipes and connection collector pipes.

1. Property connection pipes
   Property connection pipes are the pipes from the public collection pipe or the connection collection pipe to the boundary of the property to be connected. The connection pipe is part of the property connection pipe.
2. House connection pipes
   House connection pipes are the pipes from the private property boundary to the building on the property where wastewater is generated. House connection pipes also include pipes under the floor slab of the building on the property on which wastewater is produced, as well as manholes and inspection openings. In the case of pressure drainage networks, the pressure station (including pressure pump) on the private property is part of the house connection pipe.
3. Connection collector pipes
   Connection collector pipes convey the wastewater from several connection pipes via private and public land to the public wastewater system. Connection collector pipes are not part of the public sewage system, unless otherwise contractually agreed with the city.
4. Connection pipes
   Connection pipes are connecting elements for the connection of property connection pipes to the public sewage system.
5. Inspection openings
   Inspection openings are openings in the house connection pipes near the property boundary that allow operational work (such as flushing or camera inspections) on the property and house connection pipe or the building services system.

8. property drainage systems
Property drainage systems are the facilities used for the collection, pre-treatment, testing, retention, discharge and treatment of wastewater on the property.

These include, in particular, wastewater inlets, lifting stations, backwater protection systems, small sewage treatment plants, drainless pits, wastewater sampling shafts, wastewater measuring points, wastewater pre-treatment systems, separator systems, infiltration and trickling systems, rainwater retention basins as well as storage rooms and wastewater pipes including their shut-off devices, cleaning shafts and openings. Property drainage systems are not part of the public sewage system.

9. domestic wastewater systems
Domestic wastewater systems are the facilities inside and on buildings to be drained that serve to collect, pre-treat, test, retain and discharge wastewater on the property (e.g. wastewater pipes in the building, roof gutters, lifting system). They are not part of the public sewage system.

10. pressure drainage networks
Pressure drainage networks are interconnected pipe networks in which wastewater from a number of properties is transported by means of pressure generated by pumps. The pressure pumps and pump shafts are regularly technically necessary components of the respective overall network, but they are part of the house connection pipe, which is not part of the public sewage system.

11. separators
Separators are grease separators, light and heavy liquid separators, starch separators and similar devices that prevent harmful substances from entering the public wastewater system by separating them from the wastewater.

12. connectee
The connectee is the owner of a property that is connected to the public wastewater system. § Section 23 paragraph 1 applies accordingly.

13. indirect discharger
An indirect discharger is a subscriber who discharges wastewater into the public sewage system or otherwise allows it to enter the system(cf. § 58 WHG).

14. plot of land
Irrespective of the entry in the land register, a plot of land is any contiguous property that forms an independent economic unit. If there are several structures on a plot of land, the City may demand the application of the provisions of these bylaws applicable to plots of land for each of these structures.

15. drainage systems
Drainage systems are underground perforated pipes etc. for the drainage of water underground.

16. throttling devices
Throttling devices are built-in components that limit the discharge into the downstream sewer.

17. misconnections
Misconnections are illegal discharges of wastewater into the public stormwater sewer, of rainwater into the public wastewater sewer or discharges of drainage water or extraneous water into the public wastewater system.

18. extraneous water
For the purposes of these regulations, extraneous water is all water that enters the drainage system contrary to its intended purpose, regardless of its origin.

19. backwater level
The backwater level is the upper edge of the street above the connection point, unless otherwise specified by the city in individual cases. If the sewer is not located in the street, the height of the connecting line between the two nearest sewer manhole covers with openings above the connection point is deemed to be the backwater level.

Subject to the restrictions in these bylaws, every owner of a property located in the area of the city is entitled to demand that the city connect their property to the existing public sewage system (right of connection).

(1) The right of connection only extends to properties that can be connected to an operational and receptive public sewage system. For this purpose, the public sewage pipe must run in the immediate vicinity of the property or on the property. A public wastewater pipe also runs in the immediate vicinity of the property if there is direct access via a public or private path to a road in which a public sewer is laid. The term "road" in this sense also includes other public areas. The same applies if the person entitled to the connection has an access from the street secured in rem or by a building charge and a right of way for the disposal pipe.

The city may also permit the connection in other cases if this does not impair the public good.

(2) The city can refuse the connection if the responsible authority has transferred the wastewater disposal obligation to the private property owner at the request of the city under the conditions of § 49 Paragraph 5 Sentence 1 LWG NRW. This shall not apply if the property owner agrees to bear the additional costs associated with the connection.

(3) Connection is excluded if the city is exempt from the obligation to dispose of wastewater.

(1) In principle, the right of connection also extends to rainwater.

(2) However, this does not apply to rainwater from properties where the obligation to dispose of the rainwater is incumbent on the owner of the property pursuant to Section 49 (4) LWG NRW or is otherwise assigned to a third party (e.g. Section 49 (3) LWG NRW).

After the connection pipe has been installed ready for operation, the subscriber has the right to discharge the wastewater produced on his property into the public wastewater system (right of use), subject to the restrictions in these bylaws and in compliance with the technical regulations for the construction and operation of domestic wastewater systems.

(1) If the nature or quantity of the wastewater to be discharged makes this necessary, the city may require pre-treatment (e.g. separator) or retention (e.g. equalization basin, retention basin) prior to discharge.

If the occurrence of problematic wastewater (e.g. contaminated extinguishing water) cannot be ruled out in individual cases due to possible damaging events, the city can demand as a precautionary measure that facilities or equipment for the retention of such wastewater are created and/or shut-off devices are installed and/or shut-off devices are kept ready.

Before discharging problematic wastewater retained in this way, the city may demand proof that this wastewater can be safely discharged into the public wastewater system.

(2) Substances and wastewater may not be discharged into the public sewage system if, due to their content, they

1. endanger public safety or order or
2. endanger or impair the health of personnel working in the public sewage system or
3. affect the existence of the wastewater system or jeopardize, impede or obstruct its functionality or maintenance or
4. make the operation of wastewater treatment considerably more difficult or expensive, or
5. impair or increase the cost of sewage sludge treatment, disposal or utilization, or
6. disrupt the wastewater purification processes in the wastewater treatment plant to such an extent that the requirements of the discharge permit under water law cannot be met.

(3) In particular, the following may not be discharged into the public sewage system

1. solid substances, even in a shredded state, which could lead to deposits or blockages in the sewer system, for example ash, waste, textiles, hygiene articles, cardboard, coarse paper, plastics, glass, synthetic resins, slag, Latices (rubber-like dispersions), diatomaceous earth, materials from waste shredders and wet waste compactors, sand, sludge, gravel, lime, cement and other building materials, mortar, rubble, waste from animal husbandry, slaughterhouse waste, waste from food processing plants;
2. Sludge from neutralization, detoxification and other private treatment plants;
3. Wastewater and sludge from local wastewater disposal facilities, in particular from small sewage treatment plants, drainless pits, soakaways, sludge traps and commercial collection tanks, unless they are discharged into a municipal discharge point intended for this purpose;
4. liquid substances that can harden in the sewer system, as well as substances that are excreted in the sewer system after supersaturation in the wastewater and can lead to flow obstructions;
5. non-neutralized condensates from condensing boilers with a nominal heat output of more than 25 KW, if these are not considered neutralized and harmless according to the generally recognized rules of technology;
6. radioactive waste water, unless the requirements of nuclear and water legislation are complied with;
7. contents of chemical toilets (with the exception of paragraph 14);
8. non-disinfected wastewater from infection departments, e.g. hospitals, medical facilities and institutes;
9. Substances from agriculture, for example liquid manure, slurry, dung and silage water;
10. Groundwater, drainage water and cooling water:
    The discharge of drainage water into the public drainage system may be permitted in exceptional cases if it is an existing drainage system, the prevention of the discharge would cause particular hardship and the discharge of the drainage water is not contrary to the public good.
    The existence of a drainage system must be reported to the city and the connection to the public sewer must be applied for. The city reserves the right to restrict the connection of a drainage system for a limited period of time and to charge a fee for the discharge of the water drained in the drainage pipe into the sewage system.
    In the case of planned new buildings, the permanent connection of drainage systems to the public sewer system must be excluded. Other exceptions, e.g. temporary construction pit drainage, wastewater from geothermal boreholes, require prior approval from the city.
    These regulations also apply analogously to cooling water in accordance with § 49 Paragraph 1 No. 2 LWG NRW. Approval from the lower water authority is required for the discharge of cooling water for which water law requirements exist.
11. wild run-off water (§ 37 WHG);
12. gaseous substances and wastewater that can release gases in harmful concentrations;
13. flammable and explosive substances as well as wastewater from which explosive gas-air mixtures can arise;
14. Medicines and pharmaceutical products;
15. Wastewater containing genetically active microorganisms;
16. Wastewater containing dyes, the decolorization of which is not guaranteed in the sewage treatment plant;
17. Substances that are toxic, dangerous, explosive, contain grease or oil or are suspected of being infectious, as well as those that form foul-smelling or explosive vapors or gases or are otherwise harmful or inhibit the activity of the activated sludge in the sewage treatment plant in question, for example
    - Acids and alkalis,
    - Gasoline, heating oil, lubricating oils, animal and vegetable oils and fats,
    - blood, whey,
    - cold cleaners and other cleaning agents that hinder oil separation,
    - Emulsions of mineral oil products (for example cutting and drilling oils), bitumen and tar,
    - carbides that form acetylene and spontaneously oxygen-consuming substances (e.g. sodium sulphide, iron II sulphate) in concentrations that cause anaerobic conditions in the sewer system,
    - Fixing and developing baths from silver halide photography;
18. Wastewater contaminated by cleaning and paint stripping agents containing organohalogens or aromatic compounds in the course of façade cleaning work.

(4) Wastewater may only be discharged if the limit values specified in Appendix 1 are not exceeded at the transfer point to the public wastewater system. Dilution or mixing of the wastewater with the aim of complying with these limit values is not permitted. Dilution bans do not apply to parameters whose harmful effect is solely due to their concentration (sulphate, pH value, temperature).

(5) The city may limit pollutant loads, volume flow and/or concentration in individual cases.

It may make the right of use dependent on pre-treatment or retention and metered discharge of the wastewater on the property.

(6) Wastewater may only be discharged into the public wastewater system by means other than via the connection pipe of a property with the consent of the city.

(7) The use of the public wastewater system is excluded if the city is exempt from the obligation to dispose of wastewater.

(8) Upon request, the City may grant temporary exemptions from the requirements of paragraphs 3 to 7, which may be revoked at any time, if otherwise an unintended hardship would result for the obligated party and reasons of public welfare do not conflict with the exemption.

The indirect discharger shall enclose with his application the evidence required by the City.

(9) There is no entitlement to the discharge of substances that are not wastewater into the public sewage system. This shall also apply in the event that the competent authority approves the discharge pursuant to § 58 (1) LWG NRW in the case of § 55 (3) WHG.

(10) The city can take the necessary measures to

1. prevent the discharge or introduction of wastewater or substances in violation of paragraphs 2 and 3;
2. prevent the discharge of wastewater that does not comply with the limit values in accordance with paragraph 4.

(11) In individual cases, the city may demand that the limit values specified in the system be undercut if this is necessary with regard to the composition of the wastewater present in the public wastewater system or property drainage system or with regard to the regulations, conditions and requirements to be complied with by the city when discharging the wastewater into the receiving water. This shall also apply if the quantity of pollutants leads to an increase in the wastewater charge despite compliance with the limit values.

(12) Discharges of wastewater into the public sewage system at the municipal discharge point on the grounds of the Salierweg sewage treatment plant are only permitted in accordance with the city's instructions for

1. Wastewater from normal household use,
2. Wastewater from lifting stations, soakaways and pipe blockages,
3. wastewater from septic tanks and small sewage treatment plants.

(13) The discharge of wastewater from mobile toilet facilities with a direct connection to the public sewage system may only take place with the approval of the city.

(14) Wastewater from chemical toilets with a capacity of up to 20 liters can be fed into the public sewage system via the domestic drainage system.

The contents of containers with a capacity of more than 20 liters must always be disposed of at the Salierweg sewage treatment plant.

The contents of containers from private use can be disposed of free of charge at the Salierweg sewage treatment plant. Proof of the harmlessness of the disinfectant used must be provided by submitting a safety data sheet.

(1) Wastewater containing light liquids such as petrol, benzene, diesel, heating or lubricating oil as well as wastewater containing grease or gypsum must be discharged into appropriate separators and treated there before being discharged into the public wastewater system. However, this only applies to domestic wastewater containing grease if the
city requires in individual cases that this wastewater must also be discharged into appropriate separators and treated there.

(2) For the discharge of precipitation water into the public sewage system, the city may order pre-treatment (purification) on the property of the subscriber in a separator or other pre-treatment plant to be constructed and operated by the subscriber if the degree of contamination of the precipitation water triggers an obligation for the city to carry out pre-treatment in accordance with the so-called separation decree of May 26, 2004 (MinBl. NRW 2004, p. 583 ff.).

The aforementioned pre-treatment obligation also applies to road construction authorities that discharge road surface water into the public sewage system.

(3) Substances from animal by-product processing plants and slaughterhouse wastewater from slaughterhouses in accordance with Articles 8, 9 and 10 (Category 1, 2 and 3 material) of Regulation (EC) No. 1069/2009 must be passed by the connectee through a solids retention system with a maximum mesh size of 2 mm.

(4) The separation and other pre-treatment systems and their operation must comply with the relevant technical and legal requirements. The City may impose additional or deviating requirements on the construction, operation and maintenance of the separation and other pre-treatment facilities if this is necessary in individual cases to protect the public sewage system.

(5) The separation material or the substances that arise during pre-treatment must be disposed of in accordance with the waste regulations and may not be fed into the public wastewater system.

(1) Subject to the restrictions in these bylaws, every person entitled to connect is obliged to connect their property to the public wastewater system in fulfillment of the wastewater transfer obligation as soon as wastewater accumulates on the property (compulsory connection, § 48 LWG NRW).

(2) Subject to the restrictions in these bylaws, the connectee is obliged to discharge all wastewater (wastewater and rainwater) generated on his property into the public wastewater system (obligation to use, § 48 LWG NRW).

(3) There is no obligation to connect and use if the requirements specified in § 49 Paragraph 1 No. 1 LWG NRW are met for wastewater produced on farms (wastewater for fertilization in line with plant requirements). The existence of these requirements must be proven to the city.

(4) Irrespective of the existence of the requirements mentioned in para. 3, domestic wastewater from agricultural operations must be connected to and fed into the public wastewater system.

(5) The obligation to connect and use also applies to rainwater. This does not apply in the cases of § 5 paragraph 2 of these statutes.

(6) In the areas drained in the separate system, the wastewater and rainwater must be fed into the respective systems intended for this purpose.

(7) In the case of new buildings and conversions, the property must be connected to the public sewage system before the building is used. An approval procedure in accordance with § 15 paragraph 1 must be carried out.

(8) If the right to connect only arises after the construction of a building, the property must be connected within three months of the public announcement or notification to the person entitled to connect that the property can be connected.

(9) Every person entitled to connect who operates a small sewage treatment plant or a septic tank without outlet is obliged to hand over the contents of the plant to be disposed of to the city.

(10) The city can demand an adaptation of the land drainage system if changes or extensions to the public sewage system make this necessary.

(11) The waste water from

• Cabin ships with more than 50 berths,
• Passenger ships that are licensed to carry more than 50 people,
• residential vessels and
• other floating units equipped with recreation rooms and moored at a specific berth,

must be disposed of by connecting the berth to a nearby public sewer if this is necessary for the proper disposal of waste water.

If cabin ships, passenger ships, residential ships and floating units are connected to the public sewage system, the subscriber is obliged to discharge all wastewater into the public sewage system.

In the event that the mooring does not have a connection, the wastewater must either be disposed of at other moorings with a connection or removed by vehicles at suitable intervals.

The disposal of waste water, i.e. discharge into the public sewer and treatment, is carried out by the city.

The operator of the respective landing stage is responsible for providing the disposal facilities for waste water at the landing stage.

(1) Upon application, the property owner may be exempted from the obligation to connect and use wastewater in whole or in part if the obligation to dispose of wastewater has been transferred to him in whole or in part by the competent authority.

(2) The alternative disposal or utilization of the wastewater in order to save wastewater charges does not constitute a claim to exemption.

(1) Properties are exempt from the obligation to connect to and use the public wastewater disposal system for rainwater if this is regulated in a statute in accordance with the German Building Code.

(2) Exemptions from the obligation to connect to and use the public wastewater disposal system are generally not possible if the wastewater disposal system for the respective property is a separate system.

(3) If the public welfare compatibility has been determined by the lower water authority, the exemption from the obligation to transfer the rainwater is deemed to have been granted and the obligation to dispose of the rainwater is transferred to the property owner.

If the property owner intends to use the precipitation water that accumulates on his property, the city shall waive the transfer of the used precipitation water under the conditions of Section 49 (4) sentence 3 LWG NRW if the proper use of the precipitation water on the property is ensured and there is a connection to the public sewer for unused precipitation water.

(1) If, for technical or economic reasons, the city carries out the drainage by means of a pressure drainage network, the property owner must construct, operate, maintain, repair and, if necessary, modify and renew a pump shaft with a pressure pump sufficiently dimensioned for the drainage as well as the associated pressure pipe up to the property boundary on his property at his own expense. The city shall decide on the type, design, dimensioning and location of the pump shaft, the pressure pump and the associated pressure pipe.

(2) The property owner is obliged to conclude a maintenance contract with a suitable specialist contractor to ensure that the pressure pump is maintained in accordance with the manufacturer's specifications. The maintenance contract must be submitted to the City by the time the pressure pipe, pump shaft and pressure pump are accepted. For existing pressure pumps, the maintenance contract must be submitted within six months of this provision coming into force.

(3) The City may request proof of the maintenance work carried out.

(4) The pump shaft must be freely accessible and open at all times. Building over or planting in the pump shaft is not permitted.

(1) Each property to be connected shall be connected underground to the public sewage system with its own connection pipe and without any technical connection to the neighboring properties. In areas with a combined system (combined sewer), one connection pipe shall be installed for each property, in areas with a separate system (wastewater and rainwater sewer) one connection pipe each for wastewater and rainwater.

In the separate system, separate manholes or inspection openings must be provided for wastewater and rainwater. Further details can be found in Section 14 (4) of these bylaws.
Several connection pipes can be laid on request. The city may demand proof of proper connection to the public sewage system as part of the approval procedure in accordance with § 15 of these bylaws.

(2) If a property is divided into several independent properties after its connection, paragraph 1 shall apply to each of the newly created properties.

(3) The property owner must protect himself against the backing up of wastewater from the public sewer. For this purpose, he must install functional and suitable backwater protection devices in drainage points below the backwater level (generally the top edge of the road) in accordance with the generally recognized rules of technology. The backflow protection must be accessible at all times and must be installed and operated in such a way that self-monitoring of the condition and functionality of the connection pipe is possible.

(4) When installing a new connection pipe on a private property, the property owner must install a suitable manhole with access for personnel or a suitable inspection opening on his property outside the building, taking into account the generally recognized rules of technology.

In the case of existing connection pipes, the property owner is obliged to subsequently install a suitable manhole or inspection opening if he renews or modifies the connection pipe. In exceptional cases, the installation of a manhole or inspection opening outside the building may be waived at the request of the property owner.

The inspection opening or manhole must be freely accessible and openable at all times. It is not permitted to build or plant over the inspection opening or manhole.

(5) The number, location and routing, clear width and technical design of the connection pipes up to the manhole or inspection opening as well as the location, design and clear width of the manhole or inspection opening shall be determined by the City.

(6) The property owner shall carry out the construction, renewal and modification as well as the ongoing maintenance and repair of the domestic wastewater systems and the connection pipe at his own expense. The connection pipe must be installed in consultation with the City. Damage to the public sewage system resulting from the connection of a connection pipe shall be repaired by the subscriber in accordance with the City's specifications and at his own expense.

The provisions of this paragraph shall apply accordingly to the decommissioning of the connection pipe.

(7) If there is no natural gradient for the discharge of wastewater to the public wastewater system, the City may require the property owner to install and operate a lifting system to ensure proper drainage of the property. The costs shall be borne by the property owner. The lifting station must be installed in such a way that self-monitoring of the condition and functionality of the connection pipe is possible.

(8) Upon request, several properties can be drained by a common property connection pipe. The rights of use and maintenance for the house connection sewers must be secured by the property owners in the land register.

Several properties can also be connected to the public sewage system via a connection collector pipe. The provisions of paragraph 1 shall apply mutatis mutandis to the connection of each property to the connection collector pipe.

The construction of connection collector pipes must be coordinated with the city. As a rule, the construction of connection collectors is regulated by development contracts, which also include the collateral security. If such or similar regulations do not exist, the connection collector line can be laid on public land without securing in rem. This right also applies to existing lines.

The rights of use and maintenance for the connection collector pipes on private property must be secured in rem in the land register by the property owners.

Upon request, the private connection collection pipe can be transferred to the public wastewater system. The city shall decide on the transfer.

(9) If new buildings are erected on streets where there is no public sewage system yet, or if uses are undertaken that result in the generation of wastewater, the property owner must prepare facilities for a later connection on his property in consultation with the city at his own expense.

(10) Work in open excavations for the construction or renovation of connection pipes on municipal land must be carried out by civil engineering companies approved by the City of Bonn. Companies that fulfill the following criteria shall be approved:

1. Proof of membership of the building trade association;
2. Proof of membership in the trade register as a road builder;
3. Proof of expertise through references in the area of the production of sewer house connections for public clients;
4. Proof of expertise in dealing with the generally recognized rules of technology and the application of traffic regulations;
5. The requirements of RAL-GZ 961 (assessment group at least AK 3) issued by the German Institute for Quality Assurance and Certification must be fulfilled and compliance with these must be demonstrated. The
   proof can be provided by possession of the RAL quality mark for sewer construction (assessment group at least AK3) or equivalent documents. In particular, proof shall be deemed to be equivalent if the civil engineering company provides evidence of compliance with the requirements in the form of a test report in accordance with Quality and Inspection Regulations Section 4.1 "Initial test for the required assessment group(s)" and submits an undertaking that the civil engineering company will conclude a RAL-GZ 961 quality assurance contract for the duration of the work in accordance with Section 4.3 and carry out the associated "self-monitoring" in accordance with Section 4.2. A self-declaration by the civil engineering company is not sufficient.

(11) In the event of a subsequent connection of the property to the public sewage system, the party obliged to connect must, at his own expense, decommission all existing above-ground and underground property drainage facilities, in particular pits, sludge traps, infiltration systems and old sewage pipes, insofar as they have not become part of the new system, within eight weeks of the connection. The city must be notified of the decommissioning.

(12) Insofar as it is in the public interest in individual cases or is technically necessary and expedient due to the geological or infrastructural situation, the city has the right to carry out the construction, renewal, modification and removal of the connection pipe or to have it carried out by third parties and to demand reimbursement of costs for this in accordance with § 7 Para. 1 of the sewer fee statutes. If the change is caused by the city, it shall bear the costs. The responsibilities of the property owner specified in paragraph 6 shall also apply after the construction, renewal and modification of the connection pipe by the City.

(1) The creation or modification of the connection requires the prior consent of the city. This must be applied for in good time, but no later than four weeks before the connection work is carried out, together with a complete, verifiable plan.

The city shall determine whether acceptance of the house connection is required; acceptance shall only take place at the open excavation pit and must be applied for at least two working days before the intended date.

(2) The subscriber must notify the city of the abandonment of a house connection at least one week before decommissioning.

(1) The Ordinance on the Self-Monitoring of Wastewater Facilities (Self-Monitoring Ordinance for Wastewater - SüwVO Abw NRW 2013) applies to the condition and functional testing of private wastewater pipes. Private wastewater pipes must be installed and operated in such a way that the requirements for wastewater disposal are met. This also includes the proper fulfillment of the obligation to transfer wastewater to the city.

(2) Condition and function tests on private wastewater pipes may only be carried out by recognized experts.

(3) Private wastewater pipes laid underground or inaccessible for collecting or transporting wastewater or rainwater mixed with it, including all pipes under the floor slabs of the building and associated manholes or inspection openings, must be inspected. Exempt from the obligation to inspect are wastewater pipes that are used solely for the discharge of rainwater and pipes that are laid in sealed protective pipes in such a way that any leaking wastewater is collected and detected.

(4) Sections 7 to 9 SüwVO Abw NRW 2013 specify for which properties and at what time a condition and function test must be carried out for private wastewater pipes.

(5) Condition and function tests must be carried out in accordance with the generally recognized rules of technology.

(6) The result of the condition and function test must be documented in a certificate in accordance with Annex 2 of SüwVO Abw NRW 2013.

(7) Private wastewater pipes that were tested for condition and functionality after January 1, 1996 do not need to be tested again for the first time, provided the test and test certificate complied with the requirements applicable at the time of the test.

(8) The need for rehabilitation and the time of rehabilitation are generally determined by § 10 Paragraph 1 SüwVO Abw NRW. The city can decide on possible deviations from the remediation deadlines at its own discretion in individual cases.

(1) The city shall keep a register of indirect discharges whose nature differs significantly from domestic wastewater.

(2) In the case of indirect discharges within the meaning of paragraph 1, the wastewater-generating operational processes, wastewater generation and constituents shall be specified to the city with the application in accordance with § 15 paragraph 1. Insofar as indirect discharges subject to approval within the meaning of § 58 WHG and § 58 LWG NRW are concerned, the approval notice from the responsible water authority must be submitted with the application in accordance with § 15 Paragraph 1.

§ Section 21 (5) shall apply accordingly.

(1) Every party obliged to connect must notify the City of the existence of small sewage treatment plants and septic tanks without outlets.

(2) The party obliged to connect is responsible for the proper operation of small sewage treatment plants and septic tanks as well as for their proper maintenance, constant upkeep and cleaning.

(1) The disposal of the approved small sewage treatment plants and septic tanks - hereinafter referred to as "plants" - takes place once a year (regular disposal) and additionally as required (on-demand disposal). The time of regular disposal shall be determined by the city or the company commissioned by it, and the person entitled to connect the system shall be informed in good time in writing or by telephone.

(2) The person entitled to connect must apply to the city for on-demand disposal in good time, for a drainless pit at the latest when it is filled to 50 cm below the inlet. The application can be made verbally or in writing.

(3) Even without prior application, the city can empty the systems in addition to the annual disposal if special circumstances make this necessary.

(4) After emptying, the systems must be put back into operation in accordance with the operating instructions and in compliance with the applicable DIN regulations. Each emptying must be confirmed by the authorized user or their representative.

(5) The contents of the system shall become the property of the City upon removal. The City is not obliged to search for lost items in these materials or to have them searched for. If valuables are found, they are to be treated as lost property.

(6) The owners shall be liable to the City for damage resulting from defective condition or improper use of the facilities or use contrary to the statutes. They shall indemnify the City against justified claims for compensation by third parties that are asserted due to such damage. Several parties liable for compensation shall be jointly and severally liable.

(7) If the standard or on-demand disposal cannot be carried out or cannot be carried out on time due to force majeure, operational disruptions, weather conditions, flooding or similar reasons, the owner shall not be entitled to compensation or a reduction in the user fee.

(1) The city is entitled to carry out wastewater tests or have them carried out at any time. It shall determine the sampling points as well as the type, scope and frequency of sampling. For this purpose, the indirect discharger shall set up suitable sampling points (e.g. manholes) or automated sampling devices at his own expense upon request and according to the City's specifications. The sampling points and equipment must be kept in working order at all times.

(2) The costs of the tests shall be borne by the connectee if it is established that there has been a breach of the usage provisions of these bylaws.

(3) In the case of non-domestic wastewater, the indirect discharger may also be obliged to inspect the wastewater discharge himself in justified cases. Justified cases exist, for example, if wastewater is discharged into the municipal sewer system without authorization or with hazardous substances that do not comply with the regulatory framework of these bylaws, and if the scope of the investigation is disproportionately high compared to normal monitoring. The self-monitoring can relate to the quality as well as the contents and quantity of the wastewater.

The indirect discharger must bear the costs of carrying out the self-monitoring.

The type of inspection, frequency and scope are determined by the city on an ad hoc basis. For this purpose, the party obliged to use the system must, upon request and according to the city's specifications, set up suitable sampling points (e.g. manholes), provide wastewater quantity measuring devices, automated sampling devices and measuring devices including measured value recording at its own expense. The sampling and measuring equipment must be kept in working order at all times.

The indirect discharger must keep maintenance and operating logbooks. These logbooks and the original records of measured values must be kept for at least three years and presented to the city upon request.

(4) The analysis and measurement procedures in accordance with the Annex to the Ordinance on Requirements for the Discharge of Wastewater into Waters (Wastewater Ordinance) or the procedures specified in Annex 2 to these bylaws shall be used to examine the quality and constituents of the wastewater.

(1) In accordance with § 98 Paragraph 1 LWG NRW i. In conjunction with § 101 Paragraph 1 WHG, the property owner is obliged to provide the City, upon request, with the information required for the enforcement of these bylaws regarding the existence and condition of the domestic wastewater systems and the house connection pipe.

(2) Connection users and indirect dischargers must inform the City immediately if

1. the operation of their domestic wastewater systems is impaired by circumstances that may be attributable to defects in the public wastewater system (e.g. blockages in wastewater pipes),
2. malfunctions in the operation of property drainage systems, in particular wastewater treatment systems and other incidents that could change the quality of the wastewater,
3. substances have entered or threaten to enter the public sewage system that do not meet the requirements of § 7,
4. the type or quantity of wastewater produced changes significantly,
5. the data on which the notification under § 17 Para. 2 or § 21 Para. 5 is based changes significantly,
6. the conditions for the right of connection and use cease to apply to a property.

(3) Employees of the city and representatives of the city with an authorization pass are entitled to enter the connected properties insofar as this is necessary for the purpose of fulfilling the municipal wastewater disposal obligation or for the enforcement of these statutes.

The owners and authorized users must tolerate access to properties and rooms and grant unhindered access to all parts of the system on the connected properties. Pursuant to Section 98 Paragraph 1 Sentence 2 LWG NRW, the right of access also applies to facilities for the discharge of wastewater that is to be handed over to the city.

The fundamental rights of the obligated parties under Article 2 (2) sentences 1 and 2 of the Basic Law (freedom of the person), Article 13 of the Basic Law (inviolability of the home) and Article 14 of the Basic Law (property) are restricted in particular with regard to the obligation to transfer wastewater pursuant to Section 48 LWG NRW in accordance with Section 124 LWG NRW.

(4) At the request of the city, the person entitled to connect must name in writing a person responsible for the wastewater discharge and their deputy. Any change of these persons must also be notified in writing without delay.

(5) In the case of existing indirect discharges, the indirect discharger must provide information on the composition of the wastewater, the wastewater production and the pre-treatment of the wastewater within a reasonable period of time at the request of the City.

(1) The connectee and the indirect discharger must ensure proper use of the non-public wastewater facilities (e.g. connection pipes, property drainage facilities, domestic wastewater facilities) in accordance with the provisions of these bylaws. They shall be liable for all damages and disadvantages incurred by the city as a result of a defective condition or use of the non-public wastewater facilities or use of the public wastewater facilities in violation of the bylaws.

(2) To the same extent, the party liable to pay compensation shall indemnify the City against third-party claims for compensation.

(3) In particular, the connectee shall also bear costs incurred by the City due to concerns that a disruption, hazard or impairment of wastewater disposal could or will occur as well as for increased operating expenses for wastewater disposal. This also includes all costs associated with the determination and assessment of pollutant loads (at the point of origin and on the transport route), including the City's attempts to mitigate or eliminate these loads and to prevent further pollutant discharges. The connectee shall indemnify the City against any corresponding claims for compensation asserted by third parties due to such damage. Several parties liable for compensation shall be jointly and severally liable. If such damage is caused by several connection pipes or property drainage systems, their connection users in particular shall also be liable as joint and several debtors.

(4) The City shall not be liable for damage caused by force majeure. It is also not liable for damage caused by the fact that the prescribed backflow protection devices are not present or do not function properly. Likewise, there is no entitlement to compensation or a reduction in sewage charges.

(5) As in paragraph 4, the City shall not be liable for defects or damage caused by malfunctions or decommissioning of the public sewage system or parts of this system, unless the City or its representatives or agents have caused this malfunction without operational necessity.

(1) The rights and obligations arising from the statutes for property owners shall apply accordingly to hereditary building owners and other persons entitled to use the property in rem as well as to the owners of the building load of streets, paths and squares within the built-up districts.

(2) In addition, the obligations arising from these statutes for the use of the public sewage system apply to anyone who

1. is entitled or obliged to discharge the wastewater produced on the connected properties (i.e. in particular also tenants, lessees, subtenants, etc.) or
2. actually supplies wastewater to the public sewage system.

(3) Several obligated parties are jointly and severally liable.

(1) Any person who intentionally or negligently

1. contrary to § 7 paragraphs 2 and 3, discharges or introduces waste water or substances into the public sewage system whose discharge or introduction is prohibited.
2. contrary to § 7 paragraphs 4 and 5, discharges waste water in excess of the permitted volume flow or does not comply with the limit values with regard to the quality and contents of the waste water or inadmissibly dilutes or mixes the waste water in order to comply with the limit values.
3. contrary to § 7 paragraph 6, discharges wastewater into the public sewage system by means other than via the connection pipe of a property without the consent of the city.
4. contrary to § 7 paragraph 13, discharges wastewater from portable toilets into the public sewage system without authorization.
5. contrary to § 7 paragraph 14, discharges the contents of chemical toilets with a capacity of more than 20 liters into the public sewage system outside the Salierweg sewage treatment plant.
6. contrary to § 8, fails to discharge wastewater containing light liquids such as petrol, benzene, diesel, heating or lubricating oil and wastewater containing grease into appropriate separators before discharging it into the public sewage system or fails to install or operate separators or fails to install or operate separators properly or fails to dispose of separator material in accordance with waste regulations or discharges separator material into the public sewage system.
7. contrary to § 9 paragraphs 1 and 8, does not connect a property to the public sewage system or does not have it connected in good time,
8. contrary to § 9 paragraph 2, does not discharge the waste water into the public sewage system.
9. contrary to § 9 paragraph 6, in areas drained using the separate sewer system, does not discharge the wastewater and rainwater to the facilities intended for this purpose.
10. contrary to § 9 paragraph 9, does not hand over the contents of the system to be disposed of to the city.
11. contrary to § 9 paragraph 11, does not dispose of the waste water from cabin ships, passenger ships, residential ships and floating units moored at a berth via the existing sewer connection of the berth and thereby jeopardizes the proper disposal of the waste water.
12. fails to comply with requirements or conditions imposed in accordance with Section 10 (1) in connection with exemptions.
13. does not keep the pump shafts, inspection openings or manholes freely accessible contrary to §§ 13 Paragraph 4, 14 Paragraph 4.
14. fails to carry out maintenance, repair or (partial) renewal work contrary to § 14.
15. contrary to § 14 paragraph 10, does not have work on connection pipes carried out by a contractor approved by the city.
16. contrary to §§ 14 and 16, constructs property drainage systems without observing the technical regulations for the construction and operation of these systems or does not maintain them in a condition that complies with these regulations,
17. contrary to § 15 paragraph 1 sentence 1, makes or changes the connection to the public sewage system without the prior consent of the city.
18. contrary to § 15 paragraph 1 sentence 3, does not enable the proper acceptance of the connection pipe by the city,
19. contrary to § 15 paragraph 2, fails to notify the City of the decommissioning of the house connection or fails to do so in good time.
20. contrary to § 17 paragraph 2, fails to notify the City of the wastewater-generating operations or fails to do so in good time.
21. fails to notify the city of the existence of small sewage treatment plants and septic tanks contrary to § 18 paragraph 1,
22. contrary to § 18 paragraph 2, does not operate existing small sewage treatment plants and septic tanks properly and does not carry out maintenance, servicing and cleaning or does not allow proper operation to be checked.
23. fails to apply for emptying in good time contrary to § 19 paragraph 2,
24. contrary to § 19 paragraph 4, fails to put the system back into operation or fails to do so properly,
25. in contravention of § 20 (3) and (4), fails to carry out the self-inspections imposed or fails to carry them out properly and fails to keep maintenance and operating logs and other measurement records for at least three years,
26. fails to notify the City immediately of any malfunctions, defects or termination of use, contrary to § 21 (2)
27. contrary to § 21 paragraph 3, prevents the City's employees or those authorized by the City with an authorization pass from entering the connected properties for the purpose of fulfilling the municipal wastewater disposal obligation or for the enforcement of these statutes, or does not grant this group of persons unhindered access to all parts of the system on the connected properties.
28. contrary to § 21 paragraph 5, fails to provide requested information within a reasonable period of time.

(2) Anyone who carries out unauthorized work on the public sewage system, opens manhole covers or inlet grates, operates gate valves or enters a component of the public sewage system, for example a sewer, is also in breach of the regulations.

(3) Administrative offenses in accordance with paragraphs 1 and 2 can be prosecuted in accordance with § 7 paragraph 2 GO NRW i. V. m. § 17 OWiG with a fine of up to 1,000 euros.

These bylaws shall enter into force on the day following their public announcement. At the same time, the bylaws of the City of Bonn on the drainage of properties, wastewater disposal and connection to the public wastewater system (drainage bylaws) dated October 30, 2001 shall expire.
_ _ _

The above statutes are hereby made public.

It is pointed out that a violation of procedural and formal regulations of the municipal code for the state of North Rhine-Westphalia (GO NRW) in the creation of these bylaws can no longer be asserted after the expiry of one year since this announcement, unless

1. a prescribed approval is missing or a prescribed notification procedure has not been carried out,
2. these Articles of Association have not been duly published,
3. the Mayor of Bonn has previously objected to the resolution on the statutes or
4. the formal or procedural defect has been notified to the city in advance and the violated legal provision and the fact that reveals the defect have been identified.

Bonn, December 18, 2017

Sridharan
Mayor of Bonn