Code of Federal Regulations: Containing a Codification of Documents of General Applicability and Future Effect as of December 31, 1948, with Ancillaries and IndexDivision of the Federal Register, the National Archives, 1992 - Administrative law Special edition of the Federal Register, containing a codification of documents of general applicability and future effect ... with ancillaries. |
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Page 274
... range of activities , including but not limited to assess- ments of water quality , revision of water quality standards ( WQS ) , devel- opment of alternative approaches to control pollution , implementation and enforcement of control ...
... range of activities , including but not limited to assess- ments of water quality , revision of water quality standards ( WQS ) , devel- opment of alternative approaches to control pollution , implementation and enforcement of control ...
Page 289
... range of 6.5 to 8.5 with a human - caused varia- tion of less than 0.2 units . ( F ) Turbidity shall not exceed 5 NTU over background turbidity when the background turbidity is 50 NTU or less , or have more than a 10 percent increase in ...
... range of 6.5 to 8.5 with a human - caused varia- tion of less than 0.2 units . ( F ) Turbidity shall not exceed 5 NTU over background turbidity when the background turbidity is 50 NTU or less , or have more than a 10 percent increase in ...
Page 326
... range of concentra- tions found in real samples or should define the working range of the detector . These aqueous standards can be stored up to 24 h , if held in sealed vials with zero headspace as described in Section 9.2 . If not so ...
... range of concentra- tions found in real samples or should define the working range of the detector . These aqueous standards can be stored up to 24 h , if held in sealed vials with zero headspace as described in Section 9.2 . If not so ...
Page 328
... range for recovery at the spike concentration as ( 100 X / T ) +2.44 ( 100 S / T ) % . 8.3.4 If any individual P falls outside the designated range for recovery , that parame- ter has failed the acceptance criteria . A check standard ...
... range for recovery at the spike concentration as ( 100 X / T ) +2.44 ( 100 S / T ) % . 8.3.4 If any individual P falls outside the designated range for recovery , that parame- ter has failed the acceptance criteria . A check standard ...
Page 330
... range from the MDL to 1000 × MDL . Direct aqueous injec- tion techniques should be used to measure concentration levels above 1000 × MDL . 12.3 This method was tested by 20 lab- oratories using reagent water , drinking water , surface ...
... range from the MDL to 1000 × MDL . Direct aqueous injec- tion techniques should be used to measure concentration levels above 1000 × MDL . 12.3 This method was tested by 20 lab- oratories using reagent water , drinking water , surface ...
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Common terms and phrases
1,1,1-Trichloroethane 1,2-Dichloroethane 1,4-Dichlorobenzene acceptance criteria accuracy accuracy and precision acid Aldicarb amended analysis analyzed applicable approved benzidine calculate calibration standards centration check sample concentrate chemical Clean Water Act cleanup coliforms column compliance compounds containing detector determined dilution Director discharge draft permit drinking water effluent effluent limitations Endosulfan Endrin Environmental extract facility flask gas chromatograph hearing Heptachlor hexane injected internal standard issued laboratory measured ment methylene chloride mg/L modified monitoring notice NPDES NPDES permit paragraph parameter percent recovery phenol POTW Presiding Officer procedure Protection Agency public water system pursuant QC check sample RCRA reagent water Regional Administrator request rinse Section 8.2 separate storm sewer Sodium sodium sulfate specified spike stock standard storm sewer storm water subpart syringe Table technique temperature tion Toxaphene toxic pollutants treatment trihalomethane wastewater water quality standards µg/L