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WASTE DISCHARGE REQU&MENTS ORDER NO. R5-2004-0020 -37- CITY OF MANTECA, CITY 07 LATHROP AND DUTRA FARMS WASTEWATER QUALITY CONTROL FACILITY SAN JOAQUIN COUNTY 10. There shall be no standing water in the disposal area 48 hours after wastewater is applied. 11. Public contact with wastewater shall be precluded through such means as fences, signs, and other acceptable alternatives. 12. Areas irrigated with reclaimed water shall be managed to prevent breeding of mosquitoes. More specifically, a. Tail water must be returned and all applied reclaimed water and any additional supplement irrigation water must infiltrate completely within a 48-hour period. b. Ditches not serving as wildlife habitat should be maintained free of emergent, marginal, and floating vegetation. c. Low pressure and unpressurized pipelines and ditches accessible to mosquitoes shall not be used to store reclaimed water. 13. Stormwater runoff from the irrigation field shall not be discharged to any surface water drainage course within 30 days of the last application of reclaimed water. 14. There shall be no irrigation or impoundment of reclaimed water within 150 feet of any domestic water well. 15. All reclaimed water equipment,pumps,piping,valves, and outlets shall be appropriately marked to differentiate them from potable facilities, and these shall be of a type, or secured in a manner, that permits operation by authorized personnel only. 16. Conspicuous warning signs indicating that reclaimed water is in use shall be posted at least every 500 feet, with a minimum of a sign at each corner of the parcels and at access road entrances. 17. Supplementing reclaimed water by connection with a domestic drinking water source or irrigation or industrial wells requires an air gap separation device. 18. Neither the treatment nor the use of reclaimed water shall cause a pollution or nuisance as defined by California Water Code Section 13050. D. Pond Discharge Specifications (Land Disposal): 1. Objectionable odors originating at the facility shall not be perceivable beyond the limits of the disposal areas or property owned by the Discharger.