SU0008175 SSNL - Laserfiche WebLink

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(§ 1.1 and 2.1) The subject.property is.approximately eight miles southeast of the City of Lodi. Surrounding property use consists predominately of farms, ranches, ranchettes, schools, pasture, and other types of agricultural operations.. Current zoning is AL-5 which is not anticipated to. change through a General Plan Amendment-/Re-zone. Municipal sewer will never serve this area, at least not for:several decades. (§ 4.2) Any of the:above land use could create environmental concerns'that may be discovered in the future. This'may be presumably.from agricultural inputs and septic systems, and will be discussed in the Conclusions Section of this report. (§ 3.1) There are four individual septic systems currently on the property. These-systems have been.confrmed by EHD Registered'Sanitarians. Future septic system design criteria for slopes, does not have to be considered.. (§ 3.4) The subject property is on the border'of the areas designated as "Hardpan" and "Clay"by EHD's map denoting the various soil types and septic system requirements throughout the County. The subject property soil is known for its high clay content and underlying hardpan. Consequently, leachlines and.seepage pits are septic system structures required by.EHD in this locale. (§ 3.2,3.3,3.4 3.5, and 3.6) A'review of Application Permits on microfiche file at EHD reveals that there has been one Applications for Repairs/Additions/Replacements to septic systems within the one-half mile radius study area. This permit was for a Repair/Addition at the residence of the owner of the subject property, Mr.:George Nahas. No permits were found for systems on Tokay Colony Road or Grassland Road, which are to the immediate south of the-property. Additionally, no permits were found for:the 11000 Block of Jack T-one Road, which is to the immediate east of the property. (§.-5.4) This can be considered a very low number-of Repairs/Additions/ Replacements and can be.attribute'd to the low density housing within.the study area. It is suspected that more repairs and additions exist in the study area, but were-either not found in the microfiche records atEHD;'or done without permits: Repairs/additions/replacements in this locale can be attributed to the clayey-silty soils creating shorter septic system lifespans. (§ 5.1 and 6.0) SOIL PROFILE AND PERCOLATION :TESTING (§ 5.4) The USDA Soil Map shows the on-site soils to predominately consist-of one soil type classification, as illustrated on the USDA Soil Map in Appendix 2.- This soil is the.Finrod clay" loam (#158). On the. extreme west side of the property, a Stockton clay (#250)-is located. The Finrod soils are silty-clays, clayey-silts. According to USDA soil scientists, these soils are moderately well-drained, and contrary to what was observed in the perc,tests, permeability is slow. Observation of soil from the percolation test borings indicates-this soil type down to 42 inches is somewhat well-drained with moderate permeability. This moderate permeability was observed in the shallow perc test results far Parcels A, C and D;but not Parcel B. The observed permeability is - surprisingly indicative of-some of the.clay-type soils throughout San Joaquin County. Page -3- Chesney Consulting