For Orthophosphate (PO4 3-), nitrate nitrogen (NO-3-N), and ammonia nitrogen (NH3-N). Low concentration of PO4 3- values were found in MK2, MK8 and MK14. The highest concentration (0.33 mg/L) was measured at MK9 and the lowest
concentration (0.04 mg/L) was measured at MK2 (Figure 9). The PO4 3- might have been contaminated