Loading...
HomeMy WebLinkAboutMO-9572_47002_G_C_20200817_Additional Information EmailBeverly, Trudy From: Beverly, Trudy Sent: Monday, August 17, 2020 10:37 AM To: Corey Buchanan Subject: RE: [External] Fridell property Thank you for the additional information. Have a great day, Trudy Trudy Beverly, L.G. Hydrogeologist, Division of Waste Management �IEQ North Carolina Department of Environmental Quality rL�n[O ��" UST Section, Mooresville Regional Office LMW704.235.2182 (Office) Trudy. B everlykncdenn gov Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. Office Mailing Address: 610 East Center Avenue, Suite 301 Mooresville, NC 28115 Branch's Underground Storage Tanks Website Address: htips://deq.nc.gov/about/divisions/waste-manaaement/ust Branch's Above Ground Storage Tanks Website Address: ht!ps:Hdeg.nc.gov/about/divisions/waste-management/ust/ast-proeram INTERACTIVE MAPS WITH DWM SITES AND PERMITTED FACILITIES: https://deq.nc.gov/about/divisions/waste-management/waste-management-rules-data/waste-mana eg ment ig s=maps File Review Procedures: https://deq.nc. gov/about/divisions/waste-management/ust/file-review-procedures#mooresville-regional-office ONLINE ACCESS TO UST SECTION DOCUMENTS (Laserfiche): hit 2s: //deg.nc. gov/about/divisions/waste-management/laserfiche Document Submittal & UST File Names for Laserfiche Policies: httys:Hfiles.nc.eov/nedeci/Waste%2OMana2ement/DWM/UST[WhatsNew/Final-Electronic-Document-Submittal-Policy.odf htips:Hfiles.nc. gov/ncdeq/\Vaste%20Management/D WM/UST/Corrective%2OAction/UST%2Ofile%20names%20for%2OLaserfiche.docx From: Corey Buchanan[mailto:cnb@geologicalresourcesinc.com] Sent: Monday, August 17, 2020 9:54 AM To: Beverly, Trudy <trudy.beverly@ncdenr.gov> Subject: [External] Fridell property External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to report.spam@nc.gov Hello Trudy, Below are some additional information on some of your comments after report review. Let me know if you have any questions, thanks. Concerns 1. FP information (thickness, recharge, depth) 2. Evidence of soil contamination in Area 2 of Sidewalls offsite: SW-N-2(6'), SW-W-2('6), SW-S-2('6), and expanded area SW-W-2-3 (T). Specifically, no base samples collected in those areas. 1. A. Referenced attached photos are of the Area 2 along the ridge line at the property boundary. There is about a two foot drop of slope toward Jeff's house starting at the property line to the west sidewall of excavation. B. Photo 3250 shows shallow depth to water around 6' to 7' prior to pumping event. Also color change of soil visible on sidewalls between 3 to 4' due to water table fluctuation. Soils at 4 feet were moist. C. Photo 3249 shows FP thickness in the bailer that was approximately 0.04'. The excavation was pumped out at 330 pm and photo 3256 shows the excavation after free product has been removed from the water. The excavation was backfilled around 5pm on 4/17, slow recharge of water, no visible free product or sheen at that time. 2. A. The excavation of Area 2 was extended to 11' along the ridge line and extended to 4' along the western sidewall. Base samples were not collected in both areas because the samples would be affected by ground water contamination and not indicative of soil. Once depth of water table was identified, sidewall samples were collected. B. Soil sample SW-W-2-3 (3') identified some soil contamination in the 3' zone that was above the RAL. An additional soil sample (SW-W-2-4(3')) was collected in the general vicinity of that soil sample which was below the RAL. That area was excavated to —4' bgl and significantly expanded in order to obtain samples that were non detect, if possible. In doing so the affected soils identified in sample SW-W-2-3 (3') was removed. C. Following excavation of the western sidewall, soil samples were collected near the base at 3' at the three remaining sidewalls. The concentrations were all below the RALs. In conclusion for the offsite property excavation, only sidewall soil samples were collected due to the shallow depth of ground water. Sidewall soil samples collected above water table are below the RALs indicate that an offsite notice for residual petroleum is not required. ,mor''''"� x IS Aft IF ;/ , y 'iAte or OF MI or V Iw d I AL It A Op I � i I Ile In r t i. It poor Vr jfI ` t jj( TAN .fir f � ter. • ��� J 1;' . \1 4 i T ^I. .. At n'a ti� �, o � �• yr i Y �,�. qt tRy,�,P..rf` F � �'�.7t +�e� Vi; �F 3• f a i ."ratN��N`� �.n�-cr • _! +—�^,^•� c �r 3L J :�P.w -a"� 'Vol doillot 44 �r r to A s� f�,q ._ s = p. lo- or Ito "do,all r POP yr . all .d? III NoIN r �F a a{ al wNAN '44e / i 4�,, F six jIN ` C A� .L: Av R do at adr 'kS w� total 0 t+: t door Iry 10 Ila Iy» — .ad a do . LEGEND ADJACENT PROPERTY BOUNDARY LINE - - - - - - - PROPERTY BOUNDARY LINE - - - - - UNDERGROUND STORAGE TANK SW-N-2(1'),(3'),(6') I SW-E-2(3'), SW-E-2(6') I �F FILL PORT I - - - - EXCAVATION AREA BOUNDARY AREA 2 SW-E-2(.5') I f SOIL SAMPLE LOCATION SW-W-2-2(3') SW-N-1(4') I TREE r UST-1-1(6'), OE/UST-1-1(8') ; SW-W-2-3(3) I I SW-E-1(4') I Contaminant of Concern 4 _ House SW-W-2-1(3'),k I r r I L Porch Sample C @ SW-W-2-4(3') I Sample ID Saple LocamDepth Location v SW-E-2(1') SW-S-1(4') I (ft BGS) N w M p SW-W-2-5(3') SW-W-1(4') AREA 1 RAL (mg/kg) 50 100 SW-W-2(1'),(3'),(6) SW IS-2(1I), SW-S-2(3') I Soil-to-WaterMCCs m /k NE NE SW-S-2(6') House UST-1-1 (6) 6 <37.8 2,210 I SW-N-1 (4') 4 <20.7 247.2 -- -- -- -- -- --- Car House SW-E-1 (4') 4 <0.3 6.3 I Port I SW-S-1 (4') Area 1 4 <0.5 1.3 SW-W-1 (4') 4 <61.7 8,308 I OE/UST-1-1 (8') 8 <15.5 725 I SW-N-2 (6') 6 <43.1 2,432 ' SW-N-2 (3') 3 <1.4 16.6 I Po rchHouse I SW-N-2 (1') 1 <0.3 <0.12 , SW-E-2 (6') 6 <19.4 731 I I SW-E-2 (3') 3 <9.1 971 , SW-E-2 (1') 1 <19.5 658 SW-E-2 (0.5') 0.5 <1.5 10.2 I I SW-S-2 (6') 6 <41.1 2,390 SW-S-2 (T) 3 <1.3 32 I I SW-S-2 (1') Area 2 1 <1.1 11.4 ' SW-W-2 (6) 6 <39.1 7,802 I �cRAss I SW-W-2 (T) 3 <31.9 394 �` "�� SW-W-2 (1') 1 <0.6 2.8 �'cRnss� SW-W-2-1 (3') 3 <0.5 22.9 I I SW-W-2-2 (3') 3 <0.5 1.9 ' SW-W-2-3 (3') 3 <8.3 279 I I SW-W-2-4 (3') 3 <0.5 13.9 SW-W-2-5(3') 3 1 <0.6 <0.25 Sidewalk ARDSLEY ROAD SOIL QUALITY MAP (04/17/20) & (04/21 /20) 0 10 20 40 Fridell Property 1114 Ardsley Road Incident No. 47002 Charlotte, Mecklenburg County, ( IN FEET) GRI Project No. 5363 NC Date: 05/05/2020 Drawn by. DTH I Figure: 4 Geo%gico/ Resources, Inc. 1 inch =20 ft