. Bulletin. Wissenschaft. SAN GABRIEL FLUSS WASSER QUALITÄT 127. Pomona WRP tV LACDPW Stream Dehnungsmessstreifen o Input Sampling Sites in River Sampling Sites ^ Water Reclamation Pflanzen Abb. 1. Karte der San Gabriel River. Gezeigt werden, sind die Beeinträchtigung der Bäche, sturmabfluß Positionen während der zwei Umfragen, in-stream Probenahmestellen, stream Dehnungsmessstreifen und Water Reclamation Plant. Eingang Probenahme Eingänge auf die SGR Wasserscheide wurden am 29. September probiert, 2002 und September 14, 2003. Punkt Quelle Eingaben enthalten vier WRPs, tertiäre behandelten Abwassers. Die Los Kojoten WRP Ableitungen

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. Bulletin. Science. SAN GABRIEL RIVER WATER QUALITY 127. Pomona WRP tV LACDPW Stream Gages o Input Sampling Sites A In river Sampling Sites ^ Water Reclamation Plants Fig. 1. Map of the San Gabriel River watershed. Shown are the impaired streams, storm drain locations during the two surveys, in-stream sampling points, stream gages and water reclamation plant discharge locations. Input Sampling Inputs to the SGR watershed were sampled on September 29, 2002 and Sep- tember 14, 2003. Point source inputs included four WRPs that discharge tertiary treated wastewater. The Los Coyotes WRP discharges to the SGR, the Long Beach WRP discharges to the CC, and the Pomona WRP discharges to the SJC. The San Jose Creek WRP discharges to both the SJC and SGR. The WRP effluent was collected as a 4-hour composite sample and analyzed for the parameters listed in Table 2. Inputs that convey non-point source discharge were sampled synoptically dur- ing each of the two sampling events. Non-point source inputs were classified as either "small storm drain" discharges or "large NPS" discharges. The latter con- sisted mainly of open channels that drain to the impaired reaches that are the focus of this study (Table 3). Prior to each sampling event, storm drains and large NPSs were surveyed to identify those that flow during the dry season. At each flowing storm drain or large NPS, flow was measured using either timed-volu- metric or depth-velocity methods (as appropriate, given the conditions at the lo- cation). Water quality samples were collected directly by filling the sample bottle or using a sterilized scoop to collect the water sample. Samples were placed on ice and transported to the laboratories for analysis of the parameters listed in. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Southern

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