Nitrates
Annual Nitrate Tests Results
| Source | Nitrate-N (g/m3) | MAV (g/m3) |
| Acheron Intake | < 0.05 | 11.3 |
| Arthurs Pass Intake | < 0.05 | 11.3 |
| Castle Hill Intake | < 0.05 | 11.3 |
| Claremont Bore | 1.198 | 11.3 |
| Dalethorpe Intake | 0.214 | 11.3 |
| Darfield Bore 1 | 6.3 | 11.3 |
| Darfield Bore 2 | 5.2 | 11.3 |
| Dunsandel Bore | 2.99 | 11.3 |
| Edendale Bore | 2.3 | 11.3 |
| Hartleys Rd Intake | 0.351 | 11.3 |
| Hororātā Intake | 0.206 | 11.3 |
| Jowers Rd Bore | 2.83 | 11.3 |
| Kirwee Bore | 5.99 | 11.3 |
| Lake Coleridge Intake | < 0.05 | 11.3 |
| Leeston - Gallipoli St Bore | 1.04 | 11.3 |
| Leeston - Leeston Dunsandel Rd Bore | 1.72 | 11.3 |
| Lincoln - Eastfield Dr Bore | 1.35 | 11.3 |
| Lincoln - Kakahi St Bore | 1.96 | 11.3 |
| Lincoln - Veuve Dr Bore | 1.25 | 11.3 |
| Prebbleton - Shands Rd | 0.472 | 11.3 |
| Prebbleton - Tosswill Bore 1 | 0.676 | 11.3 |
| Prebbleton - Tosswill Bore 2 | 0.739 | 11.3 |
| Prebbleton - Tosswill Bore 3 | 0.684 | 11.3 |
| Rakaia Huts Bore | 0.693 | 11.3 |
| Rolleston - Baltimore Bore | 3.05 | 11.3 |
| Rolleston - Helpet Bore 1 | 2.15 | 11.3 |
| Rolleston - Helpet Bore 2 | 3.63 | 11.3 |
| Rolleston - Illinois Dr Bore | 7.11 | 11.3 |
| Rolleston - Izone Dr Bore | 3.03 | 11.3 |
| Rolleston - Moore St Bore 1 | 1.52 | 11.3 |
| Rolleston - Moore St Bore 2 | 3.52 | 11.3 |
| Rolleston - Overbury Cr Bore | 4.99 | 11.3 |
| Rolleston - Westland Pl Bore | 4.09 | 11.3 |
| Sheffield Intake | 3.34 | 11.3 |
| Southbridge -St John St Bore | 3.28 | 11.3 |
| Springfield Intake | 0.969 | 11.3 |
| Springston Bore | 2.08 | 11.3 |
| Tai Tapu Bore | 0.295 | 11.3 |
| Taumutu Bore | 1.41 | 11.3 |
| Te Pirita Bore | 5.58 | 11.3 |
| Upper Selwyn Huts Bore | 0.257 | 11.3 |
| West Melton - Elizabeth Allen Dr Bore | 2.34 | 11.3 |
| West Melton - Jacqueline Dr Bore | 2.24 | 11.3 |
| West Melton - Ridgeland Way Bore | 2.42 | 11.3 |
| West Melton - Royston Common Bore | 2.79 | 11.3 |