Wairau/Awatere Resource Management Plan Standard Numeric Interpretation of Standard (from RMA Third Schedule, unless marked† in which case from RMA Section 70) † Aquatic life Shallnot be any significant adverse Light Penetration effects In water deeper than half the euphotic depth, the euphotic depth shall not be changed by more than 10%. In waters shallower than half the euphotic depth, the lighting at the bed shall not be reduced by more than 20%. Ammonia Toxicity The four-day average concentration of total ammonia shall not exceed the following values Total Ammonia, NH-N4 (g/m)3 pH ≤15C20Co o 25Co 7.50 1.81 1.23 0.86 7.75 1.64 1.15 0.81 8.00 1.09 0.76 0.54 8.25 0.62 0.44 0.32 8.50 0.36 0.26 0.19 Note that daily average based on single sample taken noon - 2pm (NZST) Particulate Organic Material The daily average concentration of particulate organic matter shall not exceed 4g/m3 Temperature Shallnot be changed by more than N/A 3C.o Shall not exceed 20C.o (Note that this is more stringent than the 25C ino the RMA Third Schedule) Dissolved Oxygen Shall exceed 80% of saturation N/A Suitability of fish for human Shallnot be rendered unsuitable by No numeric interpretation available consumption the presence of contaminants AE - Water Managed for Aquatic Ecosystem Purposes* Aquatic Life Shall not be any adverse effect from: Australian Water Quality Guidelines for Fresh and Marine Waters • pH change (ANZECC 1992) • increase in the deposition of matter on the bed • contaminants App J - 4