Privacy policy
This privacy policy explains which personal data is processed when you visit this website or contact us.
1. Controller
Backes Ingenieurbüro GmbH
Hochstraße 29
35232 Dautphetal
Germany
Phone: +49 (0) 6468 9178184
Email: info@backes.gmbh
2. Hosting and server log files
This website is hosted by IONOS SE, Elgendorfer Straße 57, 56410 Montabaur, Germany. When the website is accessed, technically necessary connection data may be processed. This includes, in particular, IP address, date and time of access, requested file, amount of data transferred, referrer URL, browser type, operating system and HTTP status code.
Processing is carried out to provide the website securely, stably and without errors, and to detect and prevent technical attacks. The legal basis is Art. 6(1)(f) GDPR. Our legitimate interest lies in the secure and functional operation of our website. IONOS SE acts as a processor under the processing agreement concluded with us.
Log data is processed only for as long as necessary for operation, error analysis and IT security, or as required by statutory retention obligations.
3. Contacting us
If you contact us, we process the information you provide, in particular name, contact details, company, topic and content of the request. Required information is marked accordingly in the contact form.
Processing is carried out to handle your request and communicate with you. If your request relates to the conclusion or performance of a contract, the legal basis is Art. 6(1)(b) GDPR. In other cases, processing is based on Art. 6(1)(f) GDPR; our legitimate interest lies in the appropriate handling of business and technical inquiries.
The data will be deleted once the request has been finally processed and there are no statutory retention obligations or legitimate reasons for further storage. Contractual and accounting-related data may be retained longer in accordance with legal requirements.
4. Backwash calculator
Inputs and calculations in the backwash cost-benefit calculator are performed locally in your browser. The technical and economic values entered are not transmitted to our server and are not stored by us. Only if you actively send us results or data via the contact form, by email or otherwise will they be processed as part of the contact request.
5. Cookies, analytics and external content
This website currently does not use analytics or marketing cookies. No external fonts, maps, videos, social media plugins or tracking services are loaded. Therefore this version of the website does not use a cookie consent banner.
6. Recipients and third-country transfers
Within our company, only those departments that need personal data to perform the relevant task have access to it. In addition, carefully selected service providers, in particular hosting and email providers, may process data within the legal framework.
A transfer to countries outside the European Union or the European Economic Area is not intended for the operation of this website. If a service involving a third country is used in the future, this policy will be updated accordingly before use.
7. Your rights
Subject to the statutory requirements, you have the right to access, rectification, deletion, restriction of processing and data portability. You may also object to processing based on Art. 6(1)(f) GDPR. Consent given may be withdrawn at any time with effect for the future.
To exercise your rights, a message to info@backes.gmbh.
8. Right to lodge a complaint
You have the right to lodge a complaint with a data protection supervisory authority. The competent authority for us is generally the Hessian Commissioner for Data Protection and Freedom of Information, Wilhelmstraße 7, 65185 Wiesbaden, Germany.
9. Encryption and data security
After launch, the website will be provided exclusively via encrypted HTTPS. We take appropriate technical and organizational measures to protect personal data against loss, manipulation and unauthorized access.
10. Updates
We update this privacy policy if the website, services used or legal requirements change.
Last updated: June 2026