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TELESTO <br /> S O L U T IONS• INC OR P OR ATE D <br /> March 6, 2019 <br /> Via Electronic Mail <br /> Mrs. Stephanie Fancher-English <br /> Loveland Ready-Mix Concrete, Inc. <br /> 644 Namaqua Road <br /> Loveland, Colorado 80537 <br /> Subject: Tilley Groundwater Mitigation Plan <br /> Dear Stephanie: <br /> Please find attached a design drawing and calculation set evaluating the performance <br /> capability of the reverse French drain(i.e.,infiltrator). I calculated three groundwater-level <br /> scenarios beneath the Tilley property: <br /> 1. No mitigation at maximum dewatering effects from Phase 1 <br /> 2. Infiltrator operating at maximum dewatering effects from Phase 1 <br /> 3. Infiltrator operating after initial placement of Phase 1 liner,with Phase 1 being <br /> dewatered <br /> The analyses show that the infiltrator installed along the Tilley-Loveland Ready-Mix <br /> property boundary will provide adequate capacity to return groundwater levels beneath the <br /> Tilley property to near their historical summer levels should monitoring indicate that <br /> ground water levels have dropped significantly. <br /> If you have any questions or concerns,please do not hesitate to contact me. <br /> Sincerely, <br /> Telesto Solutions,Inc. <br /> 6 <br /> Walter L.Niccoli, PE <br /> Principal/Senior Engineer <br /> WLN:cmk <br /> Colorado Office (Corporate) Grand Junction New Mexico Office <br /> 3801 Automation Way,Suite 201 751 Horizon Court,Suite 109 1303 Pope Street <br /> Fort Collins,Colorado 80525 Grand Junction,Colorado 81506 Silver City,New Mexico 88061 <br /> 970484-7704 1970-484-7789(FAX) 970-697-1550 575-538-56201575-538-5625(FAX) <br />