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Home My WebLink AboutMethamphetamine Clearance Sampling ResultsIuly 16,2019 Harold D. Miller, AIC American Family Mutu¿l Insurance Company, S.I. Commercial FarmlRanch Claims Senior Field Adjuster hmiller@amfam.com Subject Methamphetamine Clearance Sampling Results Residential Structure 203 Limberpine Circle Battlement Mesa, Colorado DearMr. Miller: At your request, Grande River Environmental, LLC (GRE) conducted clearance wipe sampling for methamphetamine cont¿mination identified throughout the residential structure located at203 Limberpine Circle in Battlement Mesa, Colorado. The contamination was identifïed during a Preliminary Assessment conducted on January Zg,2019 by GRE. Results of the preliminary assessment were presented in the Preliminary Assessment report dated February 11,2019 and prepared by GRE- The residence underwent remediation by CAT Environmental Services LLC of Denver, Colorado, a certified methamphetamine remediation contractor. Clearance sampling was conducted by GRE on June 3,z1lg,Iune12,201g,June25,z}lg,andJuly 12,2}lginaccordancewiththeColoradoDepartmentof public Health and Environment (CDPIIE) regulations for Cl.eanup of Methamphetamine'Affected properties found at 6 CCR 1014-3. The purpose of this report is to present the fïndings of the clearance wipe sampling. Assessment Sampling Methamphetaminã sampling was completed by Faron Compton, a GRE inspector certified by the CDPI{E to conduct methamph.tu*inr consulting in Colorado. Copies of the inspector's certifications are attached to this letter. This survey was performed in accordance with the CDPHE Regulations 6 CCR 1014-3 for Cleanup of Methamphetamine-Affected Properties governing methamphetamine assessment activities. Clearance sampling is required following remediation activities within a methamphetamine-affected property. Sampling Methods Samiles of potentially methamphetamine contaminated surfaces were biasedly collected from areas expected to have the highest likelihood of retaining contamination from the manufacturing and/or usage of methamphetamine at the property. A fresh pair of disposable gloves were worn during collection of each set of aliquots to comprise a discreet or composite sample. Disposable templates, tape, andlot permanent marker were used to delineate the requit.ã too square centimeter (..') sample aliquot areas. For each sample aliquot, aZ"xZ" gavzepad was moistened with isopropyl alcohol which was immediately utilized to wipe the inside of the grid area using the square and "S" methods interchangeably between folds. Each aliquot wipe to be included into the composite sample was immediately placed into the Page 1 of4 Áê'*- @ffiffi 6âAI{OE n¡VÉR EHVTROHT'IËHÍAL laboratory provided tube following collection. No more than four aliquots were included into each composite sample. Following collection of each sample, the cont¿iner tube was sealed, labeled with permanent marker, and placed into the sample pack. Disposable gloves were then replaced for collection of the next sample in order to minimize possibility of çross-contamination between samples. One sample blank was collected for each ten samples and as the last sample collected as part of the assessment. Chain-of-Custody and Analytical Methods A ohain-of-custody record for all samples was used to track the possession and transfer of each sample from the time of freld collection through laboratory analysis. The record contained the following: sample container fube number, signature of collector, date of collection, identification of sampled material, requested laboratory analysis, signatures of individuals in custody of the samples, and record of possession. Copies of the chain-of-custody forms are attached to this report. Samples were submitted to an independent laboratory for analysis. Collected samples were analyzed by Reservoirs Environmental Services,Inc. (NWAP Accreditation No. 101896) of Denver, Colorado, using I\I]OSH Method 9109-M Methamphetamine by Wipes/ Mass Spectrometry. A total of 36 aliquots combined into nine composite samples and four composite blanks were collected for analysis from the structure during the four attempted clearance sampling evefits. The laboratory analytical data Íeports are attached to this report and are summarized in Table 1. Clearance Sampling Results The following table presents a summary of the sample locations and laboratory analytical results obtained during performance of the Clearance Sampling events. Table 1- Clearance Sam Results Sample Results (in pgl100 cmz) Aliquot Locations Representative Area(s)Sample# ClearanceEvent # I * June 3,2019 -Failed Clearance 2.2 I - Kitchen - dining area above window 2 - Kitchen - above former location of stove 3 - Guest Bath - exhaust fan 4 - Master Bath - doorwav framins cIJ60319-01 Kitchen and Bathrooms 0.26 1 - Master Bedroom - door glass pane 2 - Garage - electrical panel door 3 - Living Room - exterior door 4 - Hallwav - attic hatch cL-060319-02 Common Areas and Bedrooms 0.22 1-HeatExchanger 2 -ColdAirRetum 3 -HotAir Supply 4 - Laundry Room - heat register cL-06031943 Mechanical Heating System <0.01 1-Blank 2 -Blank 3 -Blank 4 -Blank FIELDBLANKcL-060319-04 Clearance Event# 2 - June 12, 2019 - Failed Clearance 0.63 1 - Kitchen - flining area aboye window 2 - Kitchen - above former location of stove 3 - Guest Bath - former location of exhaust fan 4 - Master Bath - doorwav framing crÃ61219-01 Kitchen and Bafhrooms Page2 of 4 ffiffi GNAHOë NIVÉR E}IVIFðilftIÉNÎÁL Sample Results (inpgllùA cm') Aliquot LocationsSample#Representative Area(s) û.063 I -Masto Bedroom * door glass pane 2 - Garage - electrical panel door 3 - Living Room - extsior door 4 -Hallwav - attic hatch cL-061219-02 Common Areas and Bedrooms <0.01 1-Blank 2 -Blank 3 -Blank 4 -Blank FIELDBLANKcL0612l9-03 Clearance Event # 3 - June 25, 2019 - Failed Clearance 1.8 I - Dining Area - sliding glass door 2 - Masûer Bedroom - $uamp cooler duct 3 - Living Room - above west window 4 - West Bedroom - above win¡low Common Areas and Bedroomsc1116251941 <0"01 I -Kitchen-westwall 2 - Kitchen - south wall 3 - Guest Bath - above shower 4 - Master Bath - north wall Kitchen and BatlroomscL-062519-02 <0.01 1-Blank 2 -Blank 3 -Blank 4 -Blank cL-062519-03 FIELDBLANK Clea¡ance Event# 4 - July 12,2019 -Passed Clearance <0.01 I - Kitçhen - above window on right 2 - Kitchen - above former refrigerator location 3 - GuestBath- above shower 4 - Master Bath - above toilet cL-071219-01 Kiichen and Bathrooms 0.16 t - l,iving Room- front door 2 - Laundry Room - washer water contol box 3 -Attic - above dining room on metal b¡acket 4 -Hallway - attic hatch cL-07L219-02 Common Areas and Bed¡ooms <0.01 1-Blank 2 -Blank 3 -Blank 4 -Blank eL-a71.219-03 FIELDBLANK NOTES 00 = micrograms per 100 square centimeter Botd renrlts indicâte an exceedance of the regulatory limit Conclusions & Recommendations This report presents the results of clearance methamphetamine wipe sampling of the residential structure locateú at 203 Limberpine Circle in Battlement Mesa, Colorado following remediation of the space. Contamination was identified throughout the interior of the home and the attic during a Preliminary Assessment conducted by GF.E on January 29, 2019. The results of the Preliminary Assessment were presented in a report prepared by GRE and dated February 17,2019. Clearance wipe sampling results identified remaining methamphetamine concentrations within the interior of the residence to be below the regulatory limit of a.s ¡tgl" '. Therefore, the remediated surfaces meet the regulatory requirements and no further action is required. Page 3 of4 ffi ffiffi GTANDÉ FIYGN 6NV'f,ONHENfAL Qualifications & Limitations GRE conducted this investigation in a manner consistent with cunent professional practices. This assessment was limited to the sampling locations and analyses described in the report. No other sampling or analyses were conducted during this investigation. It is possible that additional reports or investigations could alter the conclusions of this assessment. This report is intended for use only by the client. Any future use of this report by anyone other than the above-referenced client will require authorization by GRE and possible updating of the report. Certification Statement By my signature below, I hereby certify that I conducted clearance sampling of the subject properly in accordance'with 6 CCR 1014-3, Part l, $ 6. I further certify that the cleanup st¿ndards established by 6 CCR 1014-3, Part 1, $ 7 have been met as evidenced by testing I conducted. Thank you for the opportunity to assist you with your project. Please call me at (970) 260-8398 with any questions. Sincerely, Grande River Environmental' r.I.C /- #/ Faron L. Compton, CDPHE# ML-I3 13 Certified Methamphetamine Consultant Attachments: Sample Location Photo Log Sample Location MaP Field Sampling Forms Laboratory Analytical Results Chain-of-CustodY Forms Inspector C erti fi cations Page 4 of 4 Coilnsultam't Ff,rm Certf,fficateThis centiffies thatGnamde River Emvf,romrlnentalo LLChas satisffied ttae reqninements fon approval as aComsuntamt Finnmto aonduct worlc atN4[ ethamphetamf, ne :Affeatedl P rop entf, esUnden 6 CCR l0n4-3l:ìiI'!:ii¿iliiiliirliii!lì,iÌI4lrCeruifiaatíon l{umher: ML-F123Ccrtificatiom Expires: N2/ 4/2020ÆlCOLORADODepartrnent of trubticfleatth & EnvironmentApproved Comsultam't CertiffieateT[ris aentiffies ühaûFanom Conraptomhas saûisffied the requirerments fon approval as aComsr.lItantforNI ethamphetama f, ne : Affieeted Pnop enti esUmder 6 CCR lCIn4-sCcr ifrcation l{r¡mher: Ml-n3tr3Centification Expiresz \2 / 4 / 2AZACOLORADOÐepartment of PublicHealth I Environment,/1 -/"^' "Ji-u*.L-ta/y/tsAlpíoved(_y