Nephelometric turbidity units definition

Nephelometric turbidity units or “NTUs” means the units used to describe turbidity. Nephelometric refers to the way the instrument, a nephelometer, measures how much light is scat- tered by suspended particles in the water.
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Nephelometric turbidity units or “NTU” means a measure of turbidity based on a comparison of the intensity of the light scattered by the sample under defined conditions with the intensity of the light scattered by a standard reference suspension under the same conditions.
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Examples of Nephelometric turbidity units in a sentence

  • For the protection of the water contact recreation beneficial use, the wastes discharged to water courses shall have received adequate treatment, so that the turbidity of the treated wastewater does not exceed any of the following: (a) an average of 2 Nephelometric turbidity units (NTUs) within a 24-hour period; (b) 5 NTUs more than 5 percent of the time (72 minutes) within a 24-hour period; and (c) 10 NTU at any time.

  • Nephelometric turbidity units (NTUs) are used as a rough index of the fine suspended sediment content of the water (Davies-Colley and Smith 2000).

  • A partnership/consortium of NRB and/or foreign entity without Bangladeshi partner(s) is not eligible.

  • For the protection of the water contact recreation beneficial use, the wastes discharged to water courses shall have received adequate treatment, so that the turbidity of the wastewater does not exceed any of the following: (a) an average of 2 Nephelometric turbidity units (NTUs) within a 24-hour period; (b) 5 NTUs more than 5 percent of the time (72 minutes) within a 24-hour period; and (c) 10 NTU at any time.

  • Except as provided by paragraph (a)(3) of this section, for any construction activity of 30 or more acres, the discharge of stormwater shall not exceed the value listed in the following table: Pollutant or pollutant propertyMaximum forany time (NTU) 1Turbidity ....................................13 1 Nephelometric turbidity units.

  • The effluent limitation for turbidity which reads, “For the protection of the water contact recreation beneficial use, the wastes discharged to water courses shall have received adequate treatment, so that the turbidity of the wastewater does not exceed: (a) a daily average of 2 Nephelometric turbidity units (NTUs); and (b) 5 NTUs more than 5 percent of the time (72 minutes) during any 24 hour period,” is based on the Basin Plan (page 3-17).

  • The values obtained were expressed in Nephelometric turbidity units (NTU).

  • Monitoring data from 1990 - 2006 indicate that the LVR exceeded the State water quality standard of 25 NTUs (Nephelometric turbidity units) 40 percent of the time, impairing its designated use for aquatic life.

  • Nephelometric turbidity units (NTUs) and ranged from 0.1 to 165.0 NTUs than at a site in the Santa Ana River, where turbidity averaged 21.7 NTUs and ranged from 0.6 to 405.0 NTUs. Suckers were not detected at a different site in the Santa Ana River, where turbidity averaged 57.4 NTUs and ranged from 1.9 to 214.0 NTUs (Saiki 2000).

  • Sensor must be suitable for range from [0] [ ] to [2] [20] [200] Nephelometric turbidity units (NTU).

Related to Nephelometric turbidity units

  • Non-Administrator Ambulatory Surgical Facility means an Ambulatory Surgical Facility which does not meet the definition of an Administrator Ambulatory Surgical Facility.

  • CAFRA Centers, Cores or Nodes means those areas with boundaries incorporated by reference or revised by the Department in accordance with N.J.A.C. 7:7-13.16.

  • Ambulatory surgical center means any public or private State licensed and approved (whenever required by law) establishment with an organized medical staff of Physicians, with permanent facilities that are equipped and operated primarily for the purpose of performing Surgical Procedures, with continuous Physician services and registered professional nursing service whenever a patient is in the facility, and which does not provide service or other accommodations for patients to stay overnight.

  • Class C operator means the individual responsible for initially addressing emergencies presented by a spill or release from an UST system. The Class C operator typically controls or monitors the dispensing or sale of regulated substances.

  • Ambulatory surgical facility means a facility that:  Is licensed by the state where it is located.  Is equipped and operated mainly to provide for surgeries or obstetrical deliveries.  Allows patients to leave the facility the same day the surgery or delivery occurs.

  • PECR means the Privacy and Electronic Communications (EC Directive) Regulations 2003 (SI 2426/2003).

  • Class B operator means the individual who has day-to-day responsibility for implementing applicable regulatory requirements established by the department. The Class B operator typically implements in-field aspects of operation, maintenance, and associated record keeping for the UST systems.

  • Electric distribution company (EDC) means any electric utility subject to the jurisdiction of the Commission.

  • Monte Titoli means Monte Titoli S.p.A.

  • Electric bicycle means a “class 1 electric bicycle”, a “class 2 electric bicycle”, or a “class 3 electric bicycle” as defined in this section. (ORC 4511.01(RRR))

  • Electric generation service means the provision of retail

  • Class I renewable energy means electric energy produced from

  • Next Michigan development corporation means that term as defined in section 3 of the next Michigan development act, 2010 PA 275, MCL 125.2953.

  • Nuclear pharmacy means a pharmacy providing radio-pharmaceutical service.

  • Project Management Unit or “PMU” means the Recipient’s management and Implementation unit referred to in Section I.A.2 of Schedule 2 to this Agreement.

  • Useful thermal energy means, with regard to a cogeneration unit, thermal energy that is: