ARCHIVED REPORTS_DRAFT ENVIRONMENTAL IMPACT REPORT

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WASTE DISCHARGE REQUIREMENTS ORDER NO.R5-2004-0028 -41- WASTE DISCHARGE REQUIREMENTS ORDER NO.R5-2004-0028 -42- CITY OF MANTECA,CITY OF LATHROP AND DUTRA FARMS CITY OF MANTECA,CITY OF LATHROP AND DUTRA FARMS WASTEWATER QUALITY CONTROL FACILITY WASTEWATER QUALITY CONTROL FACILITY SAN JOAQUIN COUNTY SAN JOAQUIN COUNTY (3)Animals do not graze on the land. 3. Oils,greases,waxes,floating material(liquids,solids,foams,and scums)or suspended b. For at least 12 months: material to create a nuisance or adversely affect beneficial uses. (1)Turf is not harvested if turf is placed on land with a high degree of public exposure: and 4. Esthetically undesirable discoloration. (2)If the field is used as pasture,grazing by milking animals is prevented. 5. Fungi,slimes,or other objectionable growths. c. For at least 14 months: (1)Food crops with harvested parts that touch the biosolids/soil mixture and are totally 6. The turbidity to increase as follows: above the land surface are not harvested. a. More than 1 Nephelometric Turbidity Units(NTUs)where natural turbidity is d. For at least 38 months: between 0 and 5 NTUs. (1)Food crops with harvested parts below the land surface are not harvested;and (2)If the field is used as pasture,grazing of milking animals used for producing b. More than 20 percent where natural turbidity is between 5 and 50 NTUs. unpasteurized milk for human consumption is prevented. C. More than 10 NTUs where natural turbidity is between 50 and 100 NTUs. Biosolids Storage Specifications d. More than 10 percent where natural turbidity is greater than 100 NTUs. 19. Facilities for the storage of Class B biosolids shall be located,designed and maintained to restrict public access to biosolids. 7. The ambient pH to fall below 6.5,exceed 8.5,or the 30-day average ambient pH change by more than 0.5 units. 20. Biosolids storage facilities shall be designed and maintained to prevent washout or inundation from a storm or flood with a return frequency of 100 years. 8. The creation of a zone,defined by water temperatures of more than 1°F above natural receiving water temperature,which exceeds 25 percent of the cross-sectional area of the 21. Biosolids storage facilities,which contain biosolids,shall be designed and maintained to river channel at any point. contain all storm water falling on the biosolids storage area during a rainfall year with a return frequency of 100 years. 9. A surface temperature rise greater than 4°F above the natural temperature of the receiving water at any time or place. 22. Biosolids storage facilities shall be designed,maintained and operated to minimize the generation of leachate. 10. Deposition of material that causes nuisance or adversely affects beneficial uses. F. Receiving Water Limitations: 11. Radionuclides to be present in concentrations that exceed maximum contaminant levels specified in Title 22,California Code of Regulations;that harm human,plant,animal or Receiving Water Limitations are based upon water quality objectives contained in the Basin aquatic life;or that result in the accumulation of radionuclides in the food web to an extent Plan.As such,they are a required part of this permit. that presents a hazard to human,plant,animal,or aquatic life. The discharge shall not cause the following in the receiving water: 12. Aquatic communities and populations,including vertebrate,invertebrate,and plant species, to be degraded. 1. Concentrations of dissolved oxygen to fall below 5 mg/l. The monthly median of the mean daily dissolved oxygen concentration shall not fall below 85 percent of saturation in the 13. Toxic pollutants to be present in the water column,sediments,or biota in concentrations main water mass,and the 95b percentile concentration shall not fall below 75 percent of that adversely affect beneficial uses;that produce detrimental response in human,plant, saturation. animal,or aquatic life;or that bioaccumulate in aquatic resources at levels which are harmful to human health. 2. Oils,greases,waxes,or other materials to form a visible film or coating on the water surface or on the stream bottom.