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•., '.i <br /> MONITORING AND REPORTING PROGRAM -2- <br /> CITY OF STOCKTON <br /> MAIN WATER QUALITY CONTROL PLANT <br /> SAN JOAQUIN COUNTY <br /> Constituent Units Type of Sample Sampling Frequency <br /> Total Nitrogenl mg/1 , lbs/day 24 hr. Composite Bi-Weekly <br /> Total Phosphorusl mg/l , lbs/day 24 hr. Composite Weekly <br /> Total Organic Carbon mg/l , lbs/day 24 hr. Composite Mon - Fri <br /> Pentachlorophenol mg/l 24 hr. Composite Weekly <br /> * Daily - 7 days/week <br /> RECEIVING WATER MONITORING <br /> All receiving water samples shall be grab samples. Those stations listed below <br /> which are in the relatively shallow upstream reaches shall be sampled at <br /> mid-depth. All stations from the settling basin downstream shall be sampled at <br /> three feet below the surface and three feet above the channel bottom. In each <br /> case samples shall be collected from midstream. Receiving water samples shall <br /> be taken from the following: <br /> Station Description <br /> R-1 Brandts Bridge <br /> R-2 Garwood Bridge <br /> R-3 Settling Basin <br /> R-4 Light 45 <br /> R-5 Light 41 <br /> R-6 Light 36 <br /> R-7 Light 24 <br /> R-8 <br />