Minimum, maximum, mean and standard deviation of the nutrient concentrations of HRAP influent measured during the 12 months of operation (May 2016–May 2017)
| . | Nitrate and nitrite (mg/L) . | Ammonia (mg/L) . | Total N (mg/L) . | Total P (mg/L) . | Biomass (mg/L) . | pH . |
|---|---|---|---|---|---|---|
| Annual | ||||||
| Min | 0.45 | 0.41 | 2.89 | 4.28 | 5.00 | 8.03 |
| Max | 8.70 | 25.50 | 29.53 | 12.31 | 129.00 | 10.10 |
| Mean | 2.93 | 10.31 | 13.30 | 8.11 | 41.93 | 8.68 |
| Std dev | 2.21 | 9.13 | 9.76 | 2.23 | 2.77 | 0.61 |
| Autumn | ||||||
| Min | 0.90 | 0.82 | 3.80 | 5.82 | 12.00 | 8.10 |
| Max | 2.90 | 19.70 | 23.64 | 7.97 | 92.00 | 9.63 |
| Mean | 1.52 | 6.56 | 9.70 | 6.76 | 50.40 | 8.74 |
| Std dev | 0.81 | 7.85 | 8.36 | 0.78 | 37.45 | 0.70 |
| Winter | ||||||
| Min | 1.10 | 12.95 | 15.27 | 6.26 | 5.00 | 8.03 |
| Max | 8.70 | 25.50 | 29.53 | 10.76 | 29.00 | 8.57 |
| Mean | 3.99 | 20.29 | 23.87 | 8.26 | 15.50 | 8.23 |
| Std dev | 3.11 | 4.59 | 5.32 | 1.68 | 9.41 | 0.25 |
| Spring | ||||||
| Min | 2.10 | 4.48 | 7.05 | 9.23 | 8.50 | 8.14 |
| Max | 6.80 | 23.20 | 26.67 | 12.31 | 50.00 | 8.89 |
| Mean | 4.34 | 13.10 | 15.53 | 10.93 | 30.70 | 8.47 |
| Std dev | 1.77 | 7.65 | 9.17 | 1.36 | 18.27 | 0.28 |
| Summer | ||||||
| Min | 0.45 | 0.41 | 2.89 | 4.28 | 28.50 | 8.21 |
| Max | 4.00 | 2.64 | 6.93 | 8.70 | 129.00 | 10.10 |
| Mean | 1.85 | 1.28 | 4.10 | 6.49 | 71.10 | 9.18 |
| Std dev | 1.36 | 0.84 | 1.63 | 1.69 | 36.73 | 0.68 |
| . | Nitrate and nitrite (mg/L) . | Ammonia (mg/L) . | Total N (mg/L) . | Total P (mg/L) . | Biomass (mg/L) . | pH . |
|---|---|---|---|---|---|---|
| Annual | ||||||
| Min | 0.45 | 0.41 | 2.89 | 4.28 | 5.00 | 8.03 |
| Max | 8.70 | 25.50 | 29.53 | 12.31 | 129.00 | 10.10 |
| Mean | 2.93 | 10.31 | 13.30 | 8.11 | 41.93 | 8.68 |
| Std dev | 2.21 | 9.13 | 9.76 | 2.23 | 2.77 | 0.61 |
| Autumn | ||||||
| Min | 0.90 | 0.82 | 3.80 | 5.82 | 12.00 | 8.10 |
| Max | 2.90 | 19.70 | 23.64 | 7.97 | 92.00 | 9.63 |
| Mean | 1.52 | 6.56 | 9.70 | 6.76 | 50.40 | 8.74 |
| Std dev | 0.81 | 7.85 | 8.36 | 0.78 | 37.45 | 0.70 |
| Winter | ||||||
| Min | 1.10 | 12.95 | 15.27 | 6.26 | 5.00 | 8.03 |
| Max | 8.70 | 25.50 | 29.53 | 10.76 | 29.00 | 8.57 |
| Mean | 3.99 | 20.29 | 23.87 | 8.26 | 15.50 | 8.23 |
| Std dev | 3.11 | 4.59 | 5.32 | 1.68 | 9.41 | 0.25 |
| Spring | ||||||
| Min | 2.10 | 4.48 | 7.05 | 9.23 | 8.50 | 8.14 |
| Max | 6.80 | 23.20 | 26.67 | 12.31 | 50.00 | 8.89 |
| Mean | 4.34 | 13.10 | 15.53 | 10.93 | 30.70 | 8.47 |
| Std dev | 1.77 | 7.65 | 9.17 | 1.36 | 18.27 | 0.28 |
| Summer | ||||||
| Min | 0.45 | 0.41 | 2.89 | 4.28 | 28.50 | 8.21 |
| Max | 4.00 | 2.64 | 6.93 | 8.70 | 129.00 | 10.10 |
| Mean | 1.85 | 1.28 | 4.10 | 6.49 | 71.10 | 9.18 |
| Std dev | 1.36 | 0.84 | 1.63 | 1.69 | 36.73 | 0.68 |