Quality of storm-water runoff, Mililani Town, Oahu, Hawaii, 1980-84

Book · Tue Jan 01 04:00:00 EST 1985

OSTI ID:6898329

Yamane, C M; Lum, M G

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
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
CADMIUM
CHEMICAL OXYGEN DEMAND
CHROMIUM
COPPER
DISASTERS
ECOLOGICAL CONCENTRATION
ELEMENTS
ENVIRONMENTAL TRANSPORT
FEDERAL REGION IX
HAWAII
IRON
LEAD
MANGANESE
MASS TRANSFER
MERCURY
METALS
MONITORING
NITRATES
NITRITES
NITROGEN COMPOUNDS
NONMETALS
NORTH AMERICA
OXYGEN COMPOUNDS
PESTICIDES
PH VALUE
PHOSPHORUS
POLLUTION
RUNOFF
STORMS
TRANSITION ELEMENTS
URBAN AREAS
USA
WATER POLLUTION
ZINC