SU0013544 - Laserfiche WebLink

Home Browse Search

Mr. Hernandez August 14, 2020 Page 2 along roadsides and medians and can also be found underneath some existing road surtaces due to past construction activities. Due to the potential for ADL-contaminated soil DTSC, recommends coilacting soil samples for lead analysis prior to partorming any intrusive activities for the project described in the MND. 3. If any sites within the project area or sites located within the vicinity of the project have been used or are suspected of having been used for mining activities, proper investigation for mine waste should be discussed in the MND. DTSC recommends that any project sites with current and/or former mining operations onsite or in the project site area should be evaluated for mine waste according to DTSC's 1998 Abandoned Mine Land Mines Preliminary Assessment Handbook (httos'//dtsc ca aov/ o- t V I ad / 'tes/31/2016/11/aml handb k odfl. 4. If buildings or other structures are to be demolished on any project sites included in the proposed project, surveys should be conducted for the presence of lead-based paints or products, mercury, asbestos containing materials, and polychlorinated biphenyl caulk. Removal, demolition and disposal of any of the above-mentioned chemicals should be conducted in compliance with California environmental regulations and policies. In addition, sampling near current and/or former buildings should be conducted in accordance with OTSC's 2006 /nterim Guidance Eva/nation of Schoo/ Sites with Potentia/Contamination from Laad Based Paint, Termiticides, and E/ectrica/ Transformers (httos://dtsc.ca.aov/wocontenVuoloatls/sites/31/2018/09/Guidance Lead Contamination 05011 S.odf). 5. If any projects initiated as part of the proposed project require the importation of soil to backfill any excavated areas, proper sampling should be conducted to ensure that the imported soil is free of contamination. DTSC recommends the imported materials be characterized according to OTSC's 2009 /nformation Advisory C/aan /mported Fi//Materia/(httos://dtsc.ca.cov/wo- contenVuoload / 't /31/2018/09/SMP FS Clea nfill-Schools odf). 6. If any sites included as part of the proposed project have been used for agricultural, weed abatement or related activities, proper investigation for organochlorinated pesticides should be discussed in the MND. DTSC recommends the current and former agricultural lands be evaluated in accordance with DTSC's 2008 /ntarim Guidance for Samp/ing Agricu/tura/ Properties (Third Revision) (httos://dtsc.ca.cov/wo- ontenVuoloa❑ / 't /31/2018/09/Aa-Guidance-R -3-A t-7-2008-2 odfl. DTSC appreciates the opportunity to comment on the MND. Should you need any assistance with an environmental investigation, please submit a request for Lead Agency Oversight Application, which can be found at: httos://dtsc.ca.aov/wo- content/uoloatls/sites/31/208/09NCP Aoo-1460.doc. Additional information regarding voluntary agreements with DTSC can be found at: httos://dtsc.ca.cov/brownfields/.