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CENTRAL VAOEY REGIONAL WATER OUALITSONTROL BOARD INSPECTION REPORT 28 February 1985 DISCHARGER : MANTECA SEWAGE TREATMENT PLANT LOCATION & COUNTY : Manteca, San Joaquin County M CONTACT ( S ) : Manuel Oleivera, Plant Supervig i✓, R N INSPECTION DATE : 31 January 1985 yFACTy INSPECTED BY : Gary Reents, Kenneth Landau ACCOMPANIED BY : Noel Negley, Supervising Engineer of South San Joaquin Irrigation District. OBSERVATIONS AND COMMENTS: Ken Landau and I inspected the subject facility, accompanied by Noel Negley of the South San Joaquin Irrigation District , in response to a complaint by Mr . Negley that effluent from the treatment plant disposal fields was discharging directly into the Irrigation District ' s drainage ditch which borders the south and west sides of the fields. We drove or walked the length of the drainage ditch bordering the plant ' s disposal fields . The fields are loaded beyond their capacity as evidenced by standing water on the fields . Mr. Negley showed us two corrugated metal culverts which connect the disposal fields to the ditch ( see attached map) . One of the culverts is adjacent to field #3 and has no obvious inlet. The second culvert is connected to a small , tule infested pond ( within field # 3 ) by a vertical riser pipe. These culverts were reported to the Board previously by the San Joaquin County Health District ( see memorandum dated 20 July 1984 ) . No discharge was occurring at that time and the pipes reportedly had been plugged with concrete by the City. Both pipes were discharging a small amount of water to the drainage ditch at the time of our inspec- tion . There were no other direct discharges apparent, although there was evidence of past overland discharges from the ponds along the southern boundary of the fields. These breaks had been partially filled by plant personnel by using dirt, leaves, and refuse. Mr . Negley expressed concern over the City ' s plan to utilize another 80 acres of recently leased land south of the drainage ditch. He stated that this land is drained by pipes which empty into the drainage ditch and will be another source of wastewater effluent into the drain . I responded that I had only recently learned of the City ' s plans to lease more land for disposal of wastewater during a telephone conversation with David Mueller, REVIEWED BY: