Opinion ID: 754105
Heading Depth: 4
Heading Rank: 2

Heading: Location for Measuring Effluent Limitations

Text: 27 Appellants contend that the City failed to monitor final effluent chlorine and coliform organisms as required by the permits. The district court found that the permits require measurement of the numeric effluent limitations at the end of the chlorine contact chamber, and that the permits do not specify multiple tests at the end of each of the three chambers used at the Laguna Plant. Our review of the language of the NPDES permits indicates that the district court's findings are not clearly erroneous. 28 The finding that the sample taken at the end of one of the chlorine contact chambers is representative of all three chambers is not clearly erroneous. Mr. William Stinebaugh, the Deputy Director of Operations for the City, testified that he oversees the Laguna Plant and that there is no differential between taking samples at the end of one of the chambers compared to taking them at the end of all of the chambers. Mr. Adam Russell, the clerk technician with the City who actually takes the samples, testified that taking samples from one chamber is representative of all three. The district court therefore properly concluded that the grab samples for chlorine and coliform are properly taken at the end of one of the three chlorine contact chambers.