Sleman Regency is a tourist spot that is visited by many domestic and foreign tourists. The
number of tourists encourages the need for accommodation, namely hotels. This makes hotel
construction continues to increase every year in Sleman Regency. The increasing number of
hotels in Sleman Regency has resulted in increasing environmental problems, especially liquid
waste pollution. This study aims to determine the role of hotel liquid waste management as an
effort to prevent environmental pollution in Sleman Regency. This study uses an empirical
method that focuses on facts on the ground; The data used is primary data which is supported
by secondary data. The data obtained from the respondents were analyzed qualitatively. This
study concludes that Eastparc Hotel uses chemical and biological wastewater treatment
technology, namely Rotating Biological Contactor (RBC). This technology is an efficient
treatment technology that decomposes pollutants. In addition, Eastparc Hotel also routinely
conducts wastewater quality testing every month. This is done as an effort to protect the
environment, especially the river ecosystem around the hotel. In addition to waste water,
Eastparc Hotel also manages organic, inorganic and B3 solid waste.