C
| A curbside opening designed to collect stormwater running off of streets. Serves as the entry point to the stormwater system.
| Cubic feet per minute; a measure of flow rate.
| An indirect measure of the amount of oxygen used by inorganic and organic matter in water. The measure is a laboratory test based on a chemical oxidant and, therefore, does not necessarily correlate with biochemical oxygen demand.
| The depth at which rapid change in a chemical substance occurs.
| Green pigments found in plants that convert sunlight into chemical energy in photosynthesis.
| One of two types of chlorophyll in green plants and algae. Chlorophyll A concentration is often measured to estimate algal biomass in a waterbody.
| Water transparency; estimated as depth at which you can no longer see (see Secchi disk).
| The primary federal water pollution control legislation for the US.
| A group of bacteria found in the intestines of warm-blooded animals (including humans), also in plants, soil, air and water. Fecal coliforms are a specific class of bacteria which only inhibit the intestines of warm-blooded animals. The presence of coliform is an indication that the water is polluted and may contain pathogenic organisms.
| The ability of water to conduct electricity. A surrogate measure of the amount of total dissolved solids in water.
| Any physical, chemical, biological or radiological substance or matter that has an adverse effect on air, water or soil.
| The introduction into water of microorganisms, chemicals, toxic substances, wastes or wastewater in a concentration that makes the water unfit for its next intended use.
| Small crustaceans, generally a couple of centimeters in length, that are part of the free-living zooplankton in freshwater lakes and ponds.
| The heavy metal found in copper sulfate, and copper pentahydrate, commonly used algaecides; accumulation of copper in lakes can be toxic to fish and other aquatic organisms.
| Scientific name for blue-green algae. Photosynthesizing plant-like organisms that often cause problems in lakes and ponds via noxious algal blooms.
| Toxins produced by blue-green algae; consist of neurotoxins, hepatotoxins and endotoxins known to harm animals and humans.
|
D
| Aka water fleas; small freshwater crustaceans. An important component of lake and pond zooplankton communities.
| The conversion of chemically unstable materials to more stable forms by chemical or biological action. If organic matter decays when there is no oxygen present (anaerobi1r putrefaction), undesirable tastes and odors are produced. Decay of
organic matter when oxygen is present (aerobic conditions) tends to produce much less objectionable tastes and odors.
| Chemical or biological breakdown of a complex compound into simpler compounds.
| Using an aerator or electric de-icer to maintain a small opening in the ice covering a lake to increase water temperature and air exchange and prevent fish kills.
| The biochemical conversion of nitrate and nitrite nitrogen in to gaseous nitrogen.
| The development of vertical mixing within a lake or reservoir to eliminate (either totally or partially) separate layers of temperature, plant or animal life. This vertical mixing can be caused by mechanical means (pumps) or through the use of forced air diffusers that release air into the lower layers of the reservoir.
| A small basin built for holding and slowing stormwater runoff; usually filled for only a short period of time after a heavy rainfall.
| Small organic waste material from dead plants and animals.
| A device used to convert air into and release fine bubbles.
| The movement of suspended or dissolved particles from a more concentrated to a less concentrated region as a result of the random movement of individual particles. The process tends to distribute them uniformly throughout the available volume.
| Lakes and reservoirs which freeze over and normally go through two stratification and two mixing cycles within a year.
| A microscopic protist common in freshwaters. Some species are heterotrophic and some are autotrophic (photosynthesizers).
| Measure of water quality indicating free oxygen dissolved in water.
|
