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n ENVIRONMENTAL HEALTH DEPARTMENT SAN JOAQUIN COUNTY Unit Supervisors Carl Borgman,R.E.H.S. a. Donna K.Heran,R.E.H.S. 304 East Weber Avenue,Third Floor .4 Director Mike Huggins,R.E.H.S.,R.Q.I. • Al Olsen,R.E.H.S. Stockton, California 95202-2708 Douglas W.Wilson,R.E.H.S. 9)46S-3420 Margaret Lagorio,R.E.H.S. Program A-lanager Telephone: (20 0 -9'6-i Laurie A.Cotulla,R.E.H.S. Fax: (209) 464-0138 Robert McClellon,R.E.H.S. Program Manager Mark Barcellos,R.E.H.S. June 6, 2003 Mr. Lee Palleschi, Assistant Engineer FILE COPY Musca Family Olive Company 17950 Via Nicolo Tracy, CA 95377-9767 RE: Commercial Septic Permit# SR0033926 For 17950 Via Nicolo Road, Tracy On May 30, 2003, the San Joaquin County Environmental Health Department (EHD) inspected the septic system repair proposed on the above noted permit. The specifications of the septic system repair, designed and engineered specifically for the conditions at this site, are detailed in a report by Neil O. Anderson & Associates, dated April 16, 2003. In addition, unless otherwise specified in the engineered plans, the septic repair must meet the minimum requirements of the San Joaquin County Sewage Standards (Sewage Standards). Piease be advised that several insufficiencies were noted during the inspection. These insufficiencies are listed below for your information. 1. The final 2000-gallon septic tank in the series of tanks proposed in the permit lacks the solid wail with an inverted sewer pipe in place, as detailed on the engineered plans. This tank must be repaired or replaced to meet this specification. 2. Laser measurements of each leach line showed slopes ranging from 6 inches to 24 inches over the 95-foot length. Pursuant to the engineered specifications, the maximum slope for each leach line is '/4 inch. 3. The distribution boxes installed at the site have an open bottom. Section 8.2 of the Sewage Standards requires a watertight distribution box. Section 8.2.3 requires the distribution box to have a solid impervious bottom. 4. The tight line between the leach line and seepage pits slopes down towards the seepage pits on most of the leach lines. Section 8.8.1 of the Sewage Standards requires the terminal end of the tight line be elevated 4 inches above the end.of the leach line. 5. Several leach lines show an inadequate soil barrier between the end of the leach line and the seepage pit. The soil barrier must be sufficient toprevent the leakage of wastewater from the leach line to the seepageSection 8.8.1 of the Sewage Standards requires the pit barrier trench to be undisturbed soil below the grade line of the tight line (see bulleted item above).