Tegal City, located in the North Coast of Java, is one of the areas that has experienced the development of fish processing industry activities, such as the home industry of fresh fish delivery, fish salting, fish fillets, fish meal making and others contained in the Block J. Area the large number of fish processing industries in the Block J area can have an impact on the environment and surrounding communities. These impacts can be either positive or negative. This study aims to determine the effect of the presence of fish processing waste on water quality that affects environmental conditions around the area of processing activities in depth. Raw materials for fish management production found in Tegalsari PPP (Coastal Fisheries Port) include: turmeric (Upeneus sulphureus), swangi (Priacanthus tayeneus), brown (Pomadasys macullatus), curator (Nemipterus nematophorus), peperek (Leiognathus bindus), and beloso (Saurida undosquamis). The fish processing waste contained in the Tegalsari PPP has a negative impact on workers, namely the total worker's income in the region does not experience a significant increase. In addition, fish processing waste contained in the Tegalsari PPP can be said to have polluted the surrounding environment. This is because some of the observed water quality parameters have a high pollution index. The results of water quality measurements that have been carried out (Table 1), can be recognized that the average water pH ranges from 7.61–8.08, DO 0.12-2 mg/l, TSS 810-1065 mg/l, NH3 0, 04-0.1 mg/l, BOD 10-30 mg/l, COD 44-90 mg/l, and oil-fat 194-344 mg/l.