URQIS accesses a database of urban runoff quality data collected from urban areas in the North Island and South Island, with the extent of coverage between Whangarei and Invercargill, New Zealand. The data are compiled by NIWA and start in 1990. The following water quality parameters are included in the database: Total Suspended Solids (TSS), Volatile Suspended Solids (VSS), Suspended Solids Concentration (SSC), Water Temperature, pH, Conductivity, Dissolved oxygen saturation,Dissolved oxygen concentration, Turbidity,Black disc, Total Zinc, Dissolved Zinc, Particulate Zinc, Total Copper, Dissolved Copper, Particulate Copper, Total Lead, Dissolved Lead, Particulate Lead, Total Aluminum, Dissolved Aluminum, Total Antimony, Dissolved Antimony, Dissolved Arsenic, Total Arsenic, Dissolved Cadmium, Total Cadmium, Dissolved Chromium, Total Chromium, Dissolved Iron, Total Iron, Dissolved Manganese, Total Manganese, Dissolved Mercury, Total Mercury, Dissolved Nickel, Total Nickel, Dissolved Silver, Total Silver, Dissolved Magnesium ,Total Magnesium, Dissolved Potassium, Total Potassium, Dissolved Sodium, Total Sodium, carbonaceous BOD5, Chemical oxygen demand, Oil and Grease, Hardness (as CaCO3), Alkalinity, Sulfate, Chloride, Fluoride, Enterococci, Escherichia coli, Faecal coliforms, Total nitrogen, Nitrite-N, Nitrate-N, Nitrate+nitrite-N (NOxN), Ammoniacal-N, Dissolved inorganic nitrogen, Total dissolved nitrogen, Total Kjeldahl nitrogen, Dissolved Kjeldahl nitrogen, Total phosphorus, Total dissolved phosphorus, Dissolved reactive phosphorus.