Quality of storm-water runoff, Mililani Town, Oahu, Hawaii, 1980-84
The data included results from analyses of 300 samples of storm water runoff. Turbidity, suspended solids, Kjeldahl nitrogen, and phosphorus concentrations exceeded the State of Hawaii Department of Health's streamwater standards in more than 50% of the samples. Mercury, lead, and fecal coliform bacteria levels exceeded the US EPAs recommended criteria for either freshwater aquatic life or shellfish harvesting waters in more than half the samples. Other constituents exceeding State or federal standards in at least one sample included pH, cadmium, nitrate plus nitrite, iron, alkalinity, manganese, chromium, copper, zinc, and the pesticides. No statistically significant relationships were found between quantity of runoff and concentration of water quality constituents. A first flush effect was observed for chemical oxygen demand, suspended solids, lead, nitrate plus nitrite, fecal coliform bacteria, dissolved solids, and mercury. There were significant differences between the two basins for values of discharge, turbidity, specific conductance, chemical oxygen demand, suspended solids, nitrate plus nitrite, phosphorus, lead, dissolved solids, and mercury. The larger basin had higher median and maximum values, and wider ranges of values. 28 refs., 10 figs., 7 tabs.
- OSTI ID:
- 6898329
- Resource Relation:
- Related Information: USGS Water Resources Investigations Report 85-4265
- Country of Publication:
- United States
- Language:
- English
Similar Records
Pinellas Plant environmental monitoring report, 1981
Appraisal of storm-water quality near Salem, Oregon
Related Subjects
HAWAII
WATER POLLUTION
STORMS
RUNOFF
CADMIUM
CHEMICAL OXYGEN DEMAND
CHROMIUM
COPPER
ECOLOGICAL CONCENTRATION
IRON
LEAD
MANGANESE
MERCURY
MONITORING
NITRATES
NITRITES
PESTICIDES
PH VALUE
PHOSPHORUS
URBAN AREAS
ZINC
DISASTERS
ELEMENTS
ENVIRONMENTAL TRANSPORT
FEDERAL REGION IX
MASS TRANSFER
METALS
NITROGEN COMPOUNDS
NONMETALS
NORTH AMERICA
OXYGEN COMPOUNDS
POLLUTION
TRANSITION ELEMENTS
USA
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)