B-IBI Scores | Water Quality | Impairment | Pangani Basin | Wami-Ruvu Basin |
20 - 46 | Very Poor to poor | Severe to Slight | - | - |
>46 - 72 | Fair to Good | Moderate to Less | All 31 monitoring sites | 17 monitoring sites (W06, W09,W10, W11, R02, R11, R12, R14, R16, R17, R18, R21, R22, R23, R24, R26 and R28) |
>72 - 100 | Very Good to Excellent | Very Little to None | All 15 reference sites | All 15 reference sites and 7 monitoring sites (W02, W03, R06, R07, R10, R25 and R27) |