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0 s <br /> REVISION NO. 2, MONITORING AND REPORTING PROGRAM NO. 94-263 <br /> CITY OF RIPON WASTEWATER TREATMENT PLANT <br /> RIPON., SAN JOAQUIN COUNTY 4 <br /> Land application area irrigation checks shall be identified. <br /> BOD denotes 5-day Biochemical Oxygen Demand. <br /> GROUNDWATER MONITORING <br /> Prior to construction and/or sampling of any groundwater monitoring wells, the Discharger shall <br /> submit plans and specifications to the Board for review and approval. Once installed, all new <br /> wells shall be added to the MRP and shall be sampled and analyzed according to the schedule <br /> below. <br /> Prior to sampling, the groundwater elevations shall be measured and the wells shall be purged <br /> at least three well volumes until temperature, pH, and electrical conductivity have stabilized. <br /> Depth to groundwater shall be measured, and groundwater elevation calculated to the nearest <br /> 0.01 feet. Samples shall be collected using standard EPA methods. Groundwater monitoring <br /> shall-include, at a minimum, the following: <br /> Cons— tl Units Sampling and Reporting <br /> Groundwater Elevation Type of Sample Freauenc <br /> —�� v <br /> Total Dissolved Solids 0.01 Feet Measurement <br /> mg/L Grab Quarterly <br /> Fixed Dissolved Solids Quarterly <br /> Nitrate as Nitrogen mg/L Grab Quarterly <br /> Total Kjeldahl Nitrogen mg�� Grab Quarterly <br /> pH g Grab Quarterly <br /> Total Coliform OrganismsMPN/100ts Grab Grab Quarterly <br /> Arsenic ' mg/L Quarterly <br /> Iron ' Grab Quarterly <br /> mg/L <br /> Sodium /L Grab Quarterly <br /> mg <br /> Chloride Grab Quarterly <br /> Standard Minerals ' mg/L Grab Quarterly <br /> uarterly <br /> Sample shall be filtered using a maximum geffective pore diameter filter of 0.45 micr/L Grab ons priprtor to digestion. <br /> MPN denotes Most Probable Number. <br /> Standard Minerals shall include, at a minimum, the following elements/compounds: boron,calcium, <br /> magnesium,potassium, sulfate, manganese,total alkalinity(including alkalinity series), and hardness. <br /> REPORTING <br /> In reporting monitoring data, the Discharger shall arrange the data in tabular form so that the <br /> date, sample type (e.g., effluent, pond, etc.), and reported analytical result for each sample are <br /> readily discernible. The data shall be summarized in such a manner to clearly illustrate <br /> compliance with waste discharge requirements and spatial or temporal trends, as applicable. <br /> The results of any monitoring done more frequently than required at the locations specified in the <br /> Monitoring and Reporting Program shall be reported to the Regional Board. <br /> As required by the California Business-and Professions Code Sections-6735, 7835, and 7835.1, <br /> all Groundwater Monitoring Reports shall be prepared under the direct supervision of a <br /> Registered Engineer or Geologist and signed by the registered professional. <br /> W'.SiellbMlml\CM lmyuinWlpn WNTp.A,ppy4,36]geWim No.E inJ dn' <br />