BBIAPL Pond is one of the Brackish Water Fish Budiaya Center and Karanganyar Sea located in Tugu Village, Tugu District, Semarang City. The quality of the BBIAPL pond aquatic environment is essential in supporting the survival of various types of marine life. This study evaluates nitrate, phosphate, and ammonia in the water around BBIAPL pond, Tugu District, Semarang. The method used is a survey with a quantitative approach. Sampling in Stations 1, 2 and 3 in the water around the BBIAPL pond using purposive sampling techniques using line transects. The Semarang Testing Center Laboratory and equipment analysed nitrate and phosphate content. The results showed the content of nitrate, phosphate and ammonia at stations 1,2 and 3. At nitrate content of 0.57-0.59 mg / l, 0.57-0.58 mg / l and 0.51-0.52 mg / l, respectively. Furthermore, the phosphate content is 0.77-0.78 mg/l, 0.06-0.07 mg/l and 0.35-0.36 mg/l and Ammonia 0.20-0.22 mg/l, 0.30 mg/l and 0.10-0.11 mg/l, respectively.