| 
      
        | Station | CODmn | NH3-N | TP |  
        | Equation | a | b | R2 | Equation | a | b | R2 | Equation | a | b | R2 |  
        | M4 | Power | 17.52 | -0.2497 | 0.34 | Power | 171.48 | -0.8931 | 0.59 | Power | 0.7671 | -0.178 | 0.08 |  
        | M5 | Power | 0.7224 | 0.1911 | 0.10 | Power | 11.541 | -0.4487 | 0.32 | Linear | 0.000003 | 0.1103 | 0.02 |  
        | M7 | Power | 0.3098 | 0.3192 | 0.26 | Power | 14.337 | -0.6304 | 0.34 | Power | 0.0115 | 0.3264 | 0.34 |  
        | M8 | Power | 0.3818 | 0.2565 | 0.28 | Power | 0.3171 | -0.0275 | 0.002 | Linear | 0.00002 | 0.0386 | 0.44 |  |