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y <br /> Messrs Trommer and Lon 96 June 2008 <br /> Preliminary Five-Year Review Letters Page 4 of 7 <br /> Various Sites <br /> 1140 Hammer Lane, W. <br /> • The CUF has recommended review of the work plan to replace well MW-5 and <br /> evaluate-additional remediation requirements;:; the ,;EHD agrees with the <br /> recommendation, has reviewed the work plan and issued a permit for destruction <br /> of the current MW-5. The well will be reinstalled approximately 30 feet sob th of its <br /> ;current position. ? <br /> 103 E Street, N. <br /> • This site has been previously commented on by the EHD and the EHD agrees <br /> with the recommendation of the revised letter. <br /> s I <br /> 2537 Waterloo Road, E. 4 <br /> i <br /> • The CUF has recommended that the RP be .directed to assess remedial <br /> technologies and implement active remediation ,without delay. The EHD has <br /> recently issued an approval for an interim corrective action plan and a work plan <br /> that incorporates a pump and treat system eoupled with SVE/IAS; three <br /> additional monitoring wells are to be installed toward. the west for additional <br /> plume delineation and two extraction wells are to be installed for remediation <br /> purposes. <br /> 290 Main Street N. <br /> CUF recommends implementing the approved remedial technology; the EHD <br /> agrees. The discharge permit -for treated water has been obtained, but the <br /> building permit has not been issued by the City of Manteca; it is estimated;that an <br /> additional four weeks or so will be needed before construction is initiated. <br /> 545 Miner Street E. <br /> • CUF recommends closure consideration, the EHD cannot agree at thus time. <br /> Recent vapor samples have exceeded the Tier 1 'Surfer ESLs and soil data for <br /> TPHg, TPHd, naphthalene, benzene and. xylenes` exceed gross contamination; <br /> further evaluation of the data is needed.. The; EHD will direct the(RP to <br /> demonstrate a relationship between the noted ':contamination and the UST <br /> system release.and to evaluate potential remediation requirements. <br /> 595 11`" Street E. <br /> j <br /> • The CUF recommended closure consideration,,, the EHD agrees with this <br /> recommendation. The vapor intrusion evaluation has been perform4d and <br /> reported to not be a significant concern, a closure summary report has been <br /> submitted and is pending EHD review. <br /> 1001 Yosemite Avenue E. <br /> • The CUF recommends site closure. consideration, the EHD agrees with the <br /> recommendation. A soil vapor investigation has been `conducted, but not yet <br /> reported; a site closure summary report has been submitted, but is pendirig EHD <br /> review. <br /> A <br /> 5-Year Review Comment Letter 061608:doc <br />