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Sam Monaco -6- 9 June 2017 <br /> Harvest-Lathrop Composting Facility <br /> located one foot from the toe of the pond and 6 to 10 inches below the pond liner. The <br /> proposed engineered alternative is not approved because: <br /> a) It is not located at lowest point of the pond; <br /> b) Each Decagon GS3 moisture probe has an insufficient monitoring zone of around 9 in 3; <br /> and <br /> c) The manufacturer does not recommend an application where the service life of the <br /> moisture probe is around 20 years, which is the service life of typical detention pond. <br /> The manufacturer's representative Ms. Katie Anderson does not recommend expecting <br /> a service life of the moisture probes beyond 5 to 7 years. The Discharger's proposed <br /> engineered alternative buries the moisture probes below the detention ponds making <br /> maintenance and replacement very improbable. <br /> 10. Fencing around Pond A and B penetrating geomembrane liner. In construction drawing <br /> Grading and Drainage Plan (sheet 3) section B-B, the Discharger proposes installing fencing <br /> 2-feet from the edge of the pond which place the fence posts over the pond geomembrane <br /> liner (see Pond Liner and Anchor Trench Detail) requiring the fence posts to penetrate the <br /> geomembrane liner system. The fence post penetrations could jeopardize the structural <br /> integrity of the liner system due to introduction of stress concentrations. <br /> Please revise the Final Technical Report following staffs comments above, and by 28 July 2017, <br /> submit your updated report to this office. Once the ROWD information is received and deemed to <br /> meet the requirements of the General Order, staff will recommend that the Executive Officer issue a <br /> Notice of Applicability (NOA) enrolling Harvest-Power California, LLC's Harvest-Lathrop <br /> Composting Facility under the General Order. <br /> Please contact Vinoo Jain at (916) 464-4815 or Vinoo.Jain(a)-waterboards.ca.gov, or contact Marty <br /> Hartzell at (916) 464-4630 or Marty.Hartzellawaterboards.ca.gov with questions regarding this <br /> letter. <br /> ANDREW ALTEVOGT, Ph.D., . <br /> Assistant Executive Officer <br /> cc: Brian;ca St. Pierre, Land Disposal Program, SWRCB, Sacramento <br /> Linda Turkatte, San Joaquin County Environmental Health, Stockton <br /> Greg Gillespie, Harvest Power California, LLC, Fresno <br /> Dayananda Bettadapura, ABI Engineering Consultants, Inc., Santa Ana <br /> '_ ,�a � <br />