Turbidity Sample Clauses

Turbidity. This is a qualitative assessment of whether the water clear or clouded from suspended particulate matter. pH, DISSOLVED OXYGEN, CONDUCTIVITY, HARDNESS, TOTAL and PHTH ALKALINITY: Record available measurements from these field tests in the specified units of measure (e.g., hardness is recorded in parts per million or ppm.)

Turbidity. Turbidity is a measurement of the water clarity. Turbidity is caused by sediment entering the water column and in some cases is caused but excessive nutrients causing algal growth. The threshold for turbidity is based on the EPA reference criteria identified in the document titled: Ambient Water Quality Criteria Recommendations Information Supporting the Development of State and Tribal Nutrient Criteria, Rivers and Streams in Nutrient Ecoregion VII. 2000. US Environmental Protection Agency. The values listed are specific to the appropriate sub- ecoregion identified in the document. Specific conductance is a measure of the drop-in voltage caused by the resistance of the water. Each stream tends to have a relatively constant range of conductivity. Significant changes in conductivity can be an indicator that a discharge or some other source of pollution has entered a stream. Nutrients are essential for growth. Streams often contain excessive levels of nutrients, which results in additional algae and other plant growth. The main nutrients of concern are phosphorus and nitrogen, and both elements can be found in several forms. Phosphorus can be measured as total phosphorus (TP) or ortho-phosphorus. Ortho-phosphorus typically represents the “reactive” and bioavailable form of phosphorus. Ortho-phosphorus can also be called Soluble Reactive Phosphorus depending on the analytical laboratory method used to quantify the amount of available phosphorus. Nitrogen can be measured as total nitrogen (TN), Kjeldahl nitrogen (TKN), nitrate+nitrite and ammonia nitrogen. TKN represents the fraction of TN that is unavailable for growth or bound up in organic form, it also includes ammonium. The remaining fractions, nitrate-nitrite and ammonia represent bioavailable forms of nitrogen. Phosphorus and nitrogen in excess amounts can accelerate eutrophication, causing dramatic increases in aquatic plant growth and changes in the types of plants and animals that live in the stream. This, in turn, affects dissolved oxygen, temperature and other indicators. Excess nitrates can cause hypoxia (low levels of dissolved oxygen) and can become toxic to warm-blooded animals at higher concentrations. The threshold values listed for nutrients are based on the EPA reference criteria identified in the document titled: Ambient Water Quality Criteria Recommendations Information Supporting the Development of State and Tribal Nutrient Criteria, Rivers and Streams in Nutrient Ecoregion VII. 2000. US ...

Turbidity. Not to exceed 1 NTU. Government test verification may be determined by means of the finished product manufacturer’s Certificate of Analysis. 2. 7.2.1 Sampling procedures for pH and sodium and 7.

Turbidity. The turbidity levels trend showed fairly distributed at all monitoring station during the reporting period. No obvious trend of turbidity levels of each monitoring station was shown. The trend of turbidity levels of each monitoring station was shown in Appendix G. Moreover, the trend did not show any noticeable deterioration of turbidity.

Turbidity. 1) When sampling turbidity in the Receiving Water shows a 5 NTU increase in turbidity downstream of the discharge over the Background Level when that level in the Receiving Water is 50 NTU or less. 2) When sampling turbidity in the Receiving Water shows a 10 percent increase in turbidity downstream over the Background Level when that level in the Receiving Water is 50 NTU or more.

Turbidity. The cloudiness or haziness of a fluid caused by individual particles. It is used as a test of water quality. Tube or line that connects the subsurface to the surface of the sea. The release of uncombusted gases to the atmosphere. An international legal agreement regarding the protection of the Ozone Layer.

Turbidity. Turbidity is a measure of water transparency and is expressed in Nephelometric Turbidity Units (NTUs). Suspended solids are a common cause of turbid water. Silt and sand can enter surface waterways from runoff, poor drainage practices, and development. Other solids can come from wastewater and spills. Phytoplankton blooms are also an important cause of turbidity during summer months. Solids in the water can clog the gills of fish and block light from reaching underwater plants.

Turbidity. Not to exceed 1 NTU. Government verification may be determined by means of the finished product manufacturer’s Certificate of Analysis.

Turbidity. BWS shall at any time, allow full access to MCWD in order for the latter to gather water samples at the sampling point located at the meter vault.

Turbidity. It is assumed that turbidity is important as it affects the interaction between introduced fishes and the endemic Colorado River fishes. Because these endemic fishes have evolved under natural conditions of high turbidity, it is concluded that the retention of these highly turbid conditions is an important factor for these endangered fishes. Reduction of turbidity may enable introduced species to gain a competitive edge which could further contribute to the decline of the endangered Colorado River fishes. (p5-6, BO MWCD, March 1998) It is expected that there will be no changes in turbidity, since these non-project water usages are historic.