River Water Quality Dashboard

Status zone references: Ammonia, Phosphate, Oxygen Saturation, and Biochemical Oxygen Demand limits taken from Irish Statutory Instrument 272 (2009) which specify legal limits for water status. Nitrite limits defined as Salmonid Waters recommended maximum (high <15 µg), Irish EPA proposed limit (good <60 µg). Nitrate limits for high and good status are taken from proposed Irish EPA limits and the poor status is defined as above the current legal limit for safe drinking water. Dissolved oxygen mg/L zone boundaries from Irish EPA guidelines. Oxygen saturation derived values use a temperature-corrected sea-level reference table. Alkalinity classes from Irish EPA classification (Class 1–3: soft; Class 4–5: hard). Other guidelines taken from assorted EPA materials.