Wastewater from companies

If your company has process wastewater, surface water in sewered catchments, surface water that may be contaminated or has seepage or discharge of surface water to streams, lakes or seas, it may require a wastewater permit.

If your business expands or has changes that result in increased pollution, you must apply for a renewed permit.

The processing of your application can only start once we have received all the necessary information. In case we need more information, we will contact you, possibly with a view to a start-up meeting.

What information do I need for my application for connection to process wastewater?

For the application, you must fill in information about the applicant, company and contact person (eg sewer master, consulting engineers, etc.).

In addition, you must include the following information in your application:

1. Overall description of the activities that produce wastewater
2. The amount of wastewater from the individual processes
3. Description of the frequency for when to discharge
4. Technical description of a possible treatment solution for the wastewater
5. Description of the composition of the wastewater
6. Description of which substances the wastewater may contain (environmentally harmful substances, oil, metals, etc.).
7. Data sheets with case numbers and ABC assessment of all chemistry that may end up in the wastewater (eg detergents, cleaning, from production and additives)
8. Quantities of chemistry used
9. The pH and temperature of the wastewater
10. If the wastewater is treated before it is led to the sewer, this treatment must be described - including the expected degree of treatment
11. It must be described whether you as a company use the best available technology (BAT) for this particular type of wastewater
12. Drainage drawing with elevations, falls and material descriptions prepared by an authorized sewer master or drainage engineer

What information do I need for my application for connection of surface water?

For the application, you must fill in information about the applicant, company and contact person (eg sewer master, consulting engineers, etc.).

In addition, you must include the following information in your application:

1.  Overall description of the drainage system and background for the establishment
2. Wastewater volumes il / s
3. Calculation of the runoff coefficient and areas receiving surface water (the reduced area)
   If the drain coefficient is higher than 0,6, the surface water must be delayed so that the drainage corresponds to a drain coefficient of 0,6.
4. Possible description of discharge frequencies
5. Drainage drawing, incl. any pool or other delay.
   The drawing must be marked with elevations, falls and material descriptions. The drawing must be prepared by an authorized sewer master or drainage engineer.
6. Dimensioning of basin or other delay if applicable.
7. Description of the composition of the wastewater
8. Description of which areas and activities the surface water comes from
9. Description of possible risk of spillage of contaminants that may come into contact with surface water 

What information do I need for my grease trap connection application?

As a general rule, grease separators must be established in connection with drains from:

• Commercial kitchens, inns, canteens, hotels and restaurants
• Catering companies
• Barbecue bars
• Fast-food outlets
• Pizzerias
• Food companies / slaughterhouses and butchers
• Bakeries and patisseries
• Stores with hot food preparation
• Places and surfaces where grease and oil spills can occur

For the application, you must fill in information about the applicant, company and contact person (eg sewer master, consulting engineers, etc.).

In addition, you must include the following information in your application:

1. Overall description of the facility and background for the establishment (description of the activities that produce fatty wastewater, eg new canteen, restaurant, butcher department, etc.)
2. Drainage drawing showing the applied plant incl. drain installations
   The drawing must be marked with elevations, falls and material descriptions. The drawing must be prepared by an authorized sewer master or drainage engineer.
3. Dimensioning, prepared by an authorized sewer master or drainage engineer in accordance with current legislation
4. Description of cleaning products etc. incl. ABC assessment of the products
   Including data sheets, license number on the Swan label (or EU flower label) and ABC assessment on all chemicals (typically detergents and soaps) that may end up in the wastewater

Also read Sønderborg Municipality regulations for emptying and handling waste from grease traps. 

What information do I need for my application for an oil or petrol separator?

Wastewater containing oil or petrol products must be diverted through sand traps and oil or petrol separators. Sand traps and oil or petrol separators must be established on drains from:

• Workshop rooms
• Washrooms and washing areas (read more below)
• Areas where there is a risk of spillage of oil products, eg filling sites
• Garage facilities
• Parking garages
• Parking spaces where the environmental center deems it necessary
• Generally places where oil spills and oily wastewater can otherwise occur

When you want to establish a washing area, you must be aware that the oil and petrol separator must be dimensioned according to the activities on the site. The washing area must be covered so that no rainwater is led through the separation plant.

For the application, you must fill in information about the applicant, company and contact person (eg sewer master, consulting engineers, etc.).

In addition, you must include the following information in your application:

1. Overall description of the facility and background for the establishment
2. Drainage drawing showing the applied plant incl. drain installations. The drawing must be marked with elevations, falls and material descriptions. The drawing must be prepared by an authorized sewer master or drainage engineer.
3. Dimensioning prepared by an authorized sewer master or drainage engineer in accordance with current legislation
4. Description of cleaning products etc. incl. ABC assessment of the products
   Including data sheets and ABC assessment on all chemicals (typically detergents, soaps and detergents) that may end up in the wastewater. 

also read Regulations for commercial waste

What information do I need for my application for discharge of wastewater to the recipient?

For the application, you must fill in information about the applicant, company and contact person (eg sewer master, consulting engineers, etc.).

In addition, you must include the following information in your application:

1. Drainage drawing
   The drawing must be marked with elevations, falls and material descriptions. The drawing must be prepared by an authorized sewer master or drainage engineer.
2. Description of the recipient
3. Map / drawing with indication of discharge point
4. Technical description of the physical design of the discharge point
5. Overall description of the activities that produce wastewater
6. The amount of wastewater from the individual processes
7. Description of the frequency for when to discharge and the speed l / s
8. Technical description of a possible treatment solution for the wastewater and the degree of treatment
9. Description of the composition of the wastewater
10. Description of the substances that the wastewater may contain (pollutants, oil, metals, etc.)
11. Datasheets with description of every single substance with CAS # on all chemistry that may end up in the wastewater
    This applies to e.g. detergents, cleaning, from production and additives.
12. Indication of the amounts of chemistry used
13. Indication of the wastewater's pH and temperature as well as nutrient content, COD, BI5
14. If the wastewater is treated before it is led to the sewer, this treatment must be described - including the expected degree of treatment
15. It must be described whether you as a company use the best available technology (BAT) for this particular type of wastewater

What information do I need for my application for discharge of surface water to the recipient?

In the case of new sewer separation projects, a delay basin must be established for cleaning and throttling the surface water before it is discharged to a recipient.

Sønderborg Municipality must issue a discharge permit for the delay basin, and the municipality must carry out an EIA screening and subsequently announce an EIA decision on whether the basin is subject to EIA or not.

Rainwater and delay basins must have carried out an EIA screening to determine whether the project is subject to EIA or not. The applicant must therefore fill in an EIA notification form, which can be found on this page, and send it to the municipality together with the application for a discharge permit.

For the application, you must fill in information about the applicant, company and contact person (eg sewer master, consulting engineers, etc.).

In addition, you must include the following information in your application:

1. Overall description of the facility and background for the establishment
2. Indication of wastewater volumes il / s
3. Calculation of the drainage coefficient and areas receiving surface water (the reduced area)
4. Possible description of pulse discharges, if applicable
5. Drainage drawing, incl. any pool or other delay
   The drawing must be marked with elevations, falls and material descriptions. The drawing must be prepared by an authorized sewer master or drainage engineer.
6. Dimensioning of basin or other delay if applicable
7. Description of the recipient
8. Indication of discharge point on map / drawing
9. Description of areas and activities from which the surface water comes
10. Description of possible risk of spillage of contaminants that may come into contact with surface water 

What information do I need for my application for connection to a public rainwater or sewage sewer?

New accordion content

What information do I need for my application for roof and surface water infiltration?

For the application, you must fill in information about the applicant, company and contact person (eg sewer master, consulting engineers, etc.).

In addition, you must include the following information in your application:

1. Overall description of the facility and background for the establishment
2. Roof area / surface area
3. Dimensioning of fascine with infiltration test (infiltration test)
4. Description of fascine (plastic, stone, etc.)
5. Drainage drawing
6. Description of which areas and activities the surface water comes from
7. Description of possible risk of spillage of contaminants that may come into contact with surface water

HERE

How do I apply for a rainwater drainage fascine?

By infiltrating roof water, you increase groundwater formation and reduce the load on sewers and streams.

An application must be sent to the municipality, which describes the project and explains the size of the fascine in relation to the connected areas. The application must be supplemented with a dimensioned drawing, which shows the location of the fascine in relation to boundaries and buildings as well as any nearby drinking water wells, boreholes, streams, lakes and seas.

As a landowner, you must carry out the work yourself with fascines and associated wires. However, you must never make the connection and disconnection to the existing sewer system yourself - this work is reserved for an authorized sewer master.

It is the landowner who has the full responsibility for obtaining permission for seepage of roof water from the municipality, and that the facility is carried out in accordance with current rules. The landowner is also responsible for the maintenance of the fascine.

Distance requirements

Fascinators for drainage of rainwater from roof areas are placed on the property's own plot with at least 2 m from boundaries and 25 m from drinking water wells, drinking water wells, streams, lakes and the sea. The distance to inhabited buildings must be at least 5 m. In the case of buildings without dwellings and without basements, the distance requirement can be reduced to 2 m.

In a property with a basement with moisture problems on the basement walls, seepage of rainwater near the house can aggravate damage - even if the distance requirements are met; therefore, consider placing the fascine further away from the housing than the distance requirement requires.

You can read more about fascines in Sønderborg Municipality's guide on seepage of rainwater. You will find the instructions in the document box at the bottom of this page.

Soil conditions

A fascine can be made in most places. In some places, however, the soil is unsuitable for seepage.

Sand and gravel are very suitable for seepage. Moraine soil with clay requires larger fascines, while very dense clay soil can be problematic to establish fascines in. If the fascine is placed in dense soil / clay soil, the fascine should be placed in a place where it does not matter that swamps in wet periods e.g. . in the perennial bed.
Ask for example. your neighbor, whether they have fascination, whether it works and where it is located.

An infiltration test can also be performed, which can show whether the soil is suitable for seepage and how large the fascine should be. An authorized sewer master will be able to advise on location, dimensioning and establishment.

You can read more about an infiltration test in the instructions, which you will find in the document box at the bottom of this page.

How do I apply for connection to a public rainwater or sewage sewer?

Applications for connection of wastewater to a public rainwater or wastewater sewer must in principle be sent to spildevand@sonderborg.dk.

Should wastewater be assessed for chemistry?

To ensure that wastewater from industry meets the environmental requirements for industrial wastewater, the substances used in production and discharged into the wastewater must be assessed.

The municipality must receive a full overview of ALL the substances used in the wastewater-producing process together with the application for a connection permit.

Organic substances in process wastewater are divided into three categories: A, B and C substances.

• A substances
  Substances that are undesirable in the wastewater. It is usually possible to replace A-substances in the production or limit the discharge of the substances in the process wastewater to a minimum.
•  
• B substances
  Substances that should not be present in large quantities in the wastewater, and legal limit values ​​have been set for a number of B substances. It is possible to limit emissions of B-substances by using best available techniques (BAT).
•  
• C substances
  Substances that do not have properties that give rise to the setting of limit values ​​in the process wastewater.
•  

Information on which labeling substances are found in the products can usually be read from the statutory safety data sheets that must be available at the company.