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HomeMy WebLinkAboutWS-88711_95503_CA_IAR_20171213CEDAR ROCK ENVIRONMENTAL, P.C. 107 Pioneer Trail, Graham, North Carolina 27253 (336) 376-0394 December 13, 2017 Ms. Carin Kromm NCDEQ Division of Waste Management - UST Section 450 West Hanes Mill Road, Suite 300 Winston-Salem, North Carolina 27105-7407 Reference: Initial Assessment Report for the South Oak Ridge Baptist Church Property 200 Evergreen Drive, Winston-Salem, Forsyth County Incident Number: Pending Cedar Rock Project Number: 238022590 Dear Ms. Kromm: Please accept this Initial Assessment Report for a release of fuel oil from a non-commercial, above ground storage tank (AST) located at the above referenced property. This report satisfies the requirements specified in the Underground Storage Tank Section Guidelines for Initial Response and Abatement, Assessment and Corrective Action for Non-UST Releases of Petroleum, (July 1, 2012). A single AST, used for storing home heating oil, was removed from the subject property on November 15, 2017. On December 4, 2017, a total of 4.51 tons of impacted soil were excavated and transported to a permitted facility for bioremediation as an initial abatement measure. The laboratory results for five soil samples collected from the limits of the excavation showed that no petroleum residuals remain in the unexcavated soils. Cedar Rock recommends that the DWM should issue a Notice of No Further Action letter to the property owner to close out the release incident. If you have any questions or need additional information, please give me a call. Sincerely, Robert A. Payne, L.G. Enclosure cc: South Oak Ridge Baptist Church c/o Pastor Philip Beavers – Property Owner CEDAR ROCK ENVIRONMENTAL, P.C. 107 Pioneer Trail, Graham, North Carolina 27253 (336) 376-0394 December 13, 2017 Pastor Philip Beavers 1336 Lone Hickory Road Yadkinville, NC 27055 Reference: Initial Assessment Report Dear Mr. Beavers: Cedar Rock Environmental, P.C. (Cedar Rock) is pleased to submit this Initial Assessment Report to satisfy the requirements specified in the Underground Storage Tank Section Guidelines for Initial Response and Abatement, Assessment and Corrective Action for Non-UST Releases of Petroleum, (July 1, 2012) for a release of fuel oil from the former above ground heating oil system located at the 200 Evergreen Drive property in Winston-Salem, North Carolina. This report should be maintained for your records. A copy of this report has been sent to the North Carolina Department of Environmental Quality (DEQ), Division of Waste Management (DWM), UST Section in Winston-Salem. Enclosed is an invoice for this work effort. If you have any questions, please feel free to contact me at 336-376-0394. Sincerely, Robert A. Payne, L.G. President Attachment INITIAL ASSESSMENT REPORT SOUTH OAK RIDGE BAPTIST CHURCH PROPERTY 200 EVERGREEN DRIVE WINSTON-SALEM, FORSYTH COUNTY Date Release Discovered: October 31, 2017 Source: One 275-gallon Home Heating Oil AST Incident No.: Pending Prepared by: Cedar Rock Environmental, P.C. 107 Pioneer Trail, Graham, North Carolina December 13, 2017 CRE Project #238022590 Title Page INITIAL ASSESSMENT REPORT A. Site Information 1. Project name: South Oak Ridge Baptist Church Property 2. Facility ID #: N/A (residential) 3. Site Facility address, county, and telephone no.: 200 Evergreen Drive, Winston-Salem, NC 27106, Forsyth County. 4. Latitude and longitude of release: 36.119981 °N / 80.304308 °W (from Google Earth). B. Release Information 1. Incident number: Pending. 2. Date release discovered: October 31, 2017. 3. Estimated quantity of release: Unknown. 4. Cause of release: Corrosion of AST. 5. Source of release: One 275-gallon home heating oil AST. C. Ownership Information 1. Name, address, and telephone number of current UST owner: South Oak Ridge Baptist Church c/o Pastor Beavers, 1336 Lone Hickory Road, Yadkinville, NC 27055. Phone: 336-466-0893 2. Name and address of current property owner: Same as above. D. Consultant/contractors 1. Primary consultant: Cedar Rock Environmental, P.C. 107 Pioneer Trail, Graham, NC 27253 Robert A. Payne, L.G. (336) 376-0394 2. Soil Disposal: Zebra Environmental & Industrial Services Inc. 901 East Springfield Road High Point, NC 27263 (336) 841-5276 3. Laboratory: Research & Analytical Laboratories, Inc. North Carolina Certification #34 106 Short Street, Kernersville, NC 27284 (336) 996-2841 E. Report Certification I, Robert A. Payne , a Licensed Geologist for Cedar Rock Environmental, P.C., do certify that the information contained in this report is correct and accurate to the best of my knowledge. License #: 970 (Signature & Seal) Cedar Rock Environmental, P.C. is licensed to practice geology in North Carolina. The certification number of the corporation is C-324 . December 13, 2017 i TABLE OF CONTENTS Section Page No. 1.0 SITE HISTORY AND CHARACTERIZATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 INITIAL RESPONSE AND ABATEMENT ACTIVITIES . . . . . . . . . . . . . . . . . . . . . . . 1 3.0 EXCAVATION OF CONTAMINATED SOIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3.1 Field Activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3.2 Soils Investigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3.3 Discussion of Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4.0 CONCLUSIONS AND RECOMMENDATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5.0 REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Figures 1 Site Location Map (USGS 7 ½ Minute Topographical Quadrangle Map) 2 Site Map 3 Sample Locations and Results Table 1 AST Owner and Operator Information 2 AST System Information 3 Summary of Soil Sampling Results Appendices A Photographic Documentation B Disposal Manifests C Excavation Log D Sampling & Decontamination Procedures E Laboratory Reports & Chains-of-Custody 1 1.0 SITE HISTORY AND CHARACTERIZATION The project site is a residential property located at 200 Evergreen Drive in Winston-Salem, North Carolina (see Figure 1). A single 275-gallon above ground storage tank (AST), identified as T1, was located as shown in Figure 2. According to the Forsyth County Tax Office records, the house was built in 1954. Table 1 lists pertinent storage tank system ownership information. Table 2 lists specific AST information for T1. The subject site is surrounded by single-family homes. Municipal water is available to the surrounding properties. 2.0 INITIAL RESPONSE AND ABATEMENT ACTIVITIES On November 15, 2017, Cedar Rock Environmental, P.C. (Cedar Rock) removed T1 from the crawlspace of the residence. The AST was found to be empty. Laboratory analysis of two soil samples, CR-1 and CR-2, collected from depths of about 4.0 feet and 3.0 feet respectively below the former location of T1 on November 15, 2017 showed that leakage from the AST had caused significant contamination of the underlying soils. On December 4, 2017, Cedar Rock excavated 4.51 tons of obviously contaminated soil from the source area of the release. Soil removal continued to a maximum depth of 5.25 feet. The lateral dimensions of the excavation pit measured about 7.5 by 4.0 feet at the pit floor. The excavated contaminated soil was transported by Zebra Environmental & Industrial Services Inc. of High Point, North Carolina, to a permitted disposal facility located in Sanford, North Carolina for bioremediation. The excavation pit was filled with an excavatable flowable fill cement slurry on December 13, 2017. No free product was encountered during the initial abatement activities. There are no other subsurface structures on the subject site where free product or vapors could accumulate, or that would provide a migration pathway for the release. The possibility of an explosion or the threat to public health and safety or to the environment from the accumulation of vapors does not exist. Therefore, the release is not a significant fire/safety/health hazard. The 24-Hour Notification of Discharge Reporting Form (UST-62) was submitted to the North Carolina Department of Environmental Quality (DEQ), Division of Waste Management (DWM), UST Section in Winston-Salem on November 22, 2017. 3.0 EXCAVATION OF CONTAMINATED SOIL 3.1 Field Activities Soil excavation activities were performed on December 4, 2017 (see photographs in Appendix A). As impacted soil was removed from the source area, the soils were 2 periodically inspected by a North Carolina licensed geologist for evidence of petroleum residuals (staining and odors). Soil removal continued until a depth of 5.25 feet. The lateral dimensions of the excavation pit measured about 7.5 by 4.0 feet at the pit floor (see Figure 3). Neither bedrock nor groundwater were encountered during excavation activities. A total of 4.51 tons of contaminated soil were transported to a permitted disposal facility located in Sanford, North Carolina for bioremediation. Copies of the disposal manifests for the AST and the excavated soils are included in Appendix B. 3.2 Soils Investigation According to the Geologic Map of North Carolina (1985), the subject site is underlain by biotite gneiss and schist. The native soils in the source area of the release consisted of a red- brown, sandy SILT. A copy of the excavation log is included in Appendix C. Cedar Rock collected two soil samples, CR-1 and CR-2, from beneath T1 on November 15, 2017. Five soil samples, CR-3 through CR-7, were collected from the limits of the excavation on December 4, 2017 to document the effectiveness of soil excavation. The locations of the soil samples are shown in Figure 3. The soil samples were collected according to the sampling procedures included in Appendix D. Soil samples CR-1 and CR-2 were submitted to be analyzed for total petroleum hydrocarbons (TPH) by EPA Method 3550 only. Samples CR-3 through CR-7 were submitted to the laboratory to be analyzed by EPA Method 3550 and EPA Method 5035. Soil sampling activities are summarized in Table 3. TPH were quantified by Method 3550 at concentrations of 283 parts per million (ppm) in CR-1 and 108 ppm in CR-2. No TPH were quantified in samples CR-3 through CR-7 by either Method 3550 or Method 5035. Copies of the laboratory reports and chains-of-custody for the soil samples are included in Appendix E. 3.3 Discussion of Results Figure 3 shows a plan view of the source area, limits of the excavation, and soil sample locations in relation to the former location of the AST. Petroleum-impacted soils were encountered immediately beneath the former location of the AST. Soil removal continued to a depth of 5.25 feet. The lateral dimensions of the excavation pit measured about 7.5 by 4.0 feet at the pit floor. The excavation pit was filled with an excavatable flowable fill cement slurry on December 13, 2017. Five soil samples were collected from the limits of the excavation where contamination was most likely to remain. As shown in Table 3, no petroleum hydrocarbons were quantified in these soil samples. 3 4.0 CONCLUSIONS AND RECOMMENDATIONS A single AST, used for storing home heating oil, was removed from the subject property on November 15, 2017. On December 4, 2017, a total of 4.51 tons of impacted soil were excavated and transported to a permitted facility for bioremediation as an initial abatement measure. Laboratory analysis of soil samples collected from the limits of the excavation indicate that no petroleum hydrocarbons remain in the unexcavated soils. Cedar Rock recommends that the DWM should issue a “Notice of No Further Action” (NFA) letter to close out the release incident. 5.0 REFERENCES 24-Hour Notification of Discharge Form (UST-62); submitted to the North Carolina Department of Environmental Quality, Division of Waste Management, UST Section, Winston-Salem Regional Office on November 22, 2017. Underground Storage Tank Section Guidelines for Initial Response and Abatement, Assessment and Corrective Action for Non-UST Releases of Petroleum; published by the North Carolina Department of Environment and Natural Resources, Division of Waste Management, UST Section, July 1, 2012. Geologic Map of North Carolina; published by the North Carolina Department of Natural Resources and Community Development, Division of Land Resources, 1985. FIGURES Topo North America™ 10 Location: 36.119981° N 80.304308° W FIGURE 1. SITE LOCATION Data use subject to license. © DeLorme. Topo North America™ 10. www.delorme.com TN MN (8.3°W) 0 200 400 600 800 1000 0 100 200 300 400 500 ftm Scale 1 : 12,000 1" = 1,000.0 ft Data Zoom 14-3 PROJECT: LOCATION: FILENAME: VERSION DATE:CRE PROJECT NUMBER: INCIDENT # CEDAR ROCK ENVIRONMENTAL, P.C.Pending Winston-Salem, Forsyth Co. SITE MAP FIGURE 2 200 Evergreen Drive 238022590 2380-2.fc7 N 12/8/17 : T1 = 275-Gallon AST : Property Lines South Oak Ridge Baptist Church Property House T1 0 1 Inch = 40 Feet 804020 Evergreen Dri veC l a w s o n S t r e e t JWR Building Company Property FNMA Property PROJECT: LOCATION: FILENAME: VERSION DATE:CRE PROJECT NUMBER: INCIDENT # CEDAR ROCK ENVIRONMENTAL, P.C.Pending Winston-Salem, Forsyth Co. SAMPLE LOCATIONS AND RESULTS FIGURE 3 200 Evergreen Drive 238022590 2380-3.fc7 N 12/8/17 : T1 = 275-Gallon AST : Limits of Excavation : Sample Locations (CR-x) South Oak Ridge Baptist Church Property 0 1 Inch = 10 Feet 20105 House 1 2T1 3 4 5 6 7 SOIL SAMPLE ANALYTICAL SUMMARY Sample ID Depth (ft). TPH 5035 (ppm) TPH 3550 (ppm) CR-2 CR-1 CR-4 CR-7 CR-6 CR-3 CR-5 4.4 5.25 3.0 4.0 5.5 5.75 5.0 BQL BQL BQL BQL BQL Not Requested Not Requested BQL BQL BQL BQL BQL 108 283 TABLES TABLE 1 AST OWNER AND OPERATOR INFORMATION South Oak Ridge Baptist Church Property 200 Evergreen Drive, Winston-Salem, Forsyth County AST ID Number T1 Facility ID Number N/A (residential) Name of Owner/Operator Dates of Ownership South Oak Ridge Baptist Church c/o Pastor Beavers 1/17/17 – present Street Address 1336 Lone Hickory Road City State Zip Telephone Number Yadkinville NC 27055 336-466-0893 TABLE 2 AST SYSTEM INFORMATION South Oak Ridge Baptist Church Property 200 Evergreen Drive, Winston-Salem, Forsyth County AST ID Number Current/Last Contents Previous Contents Capacity (in gallons) Construction Details Tank Dimensions (in feet) Description of Assoc. Piping/Pumps Date Tank Installed Status of AST Was a release associated with the system? T1 (AST) #2 Fuel Oil #2 Fuel Oil 275 Steel 3.67 x 5.0 x 2.25 (Obround) Copper tubing Unknown Removed on 11/15/17. Yes, discovered on 10/31/17. TABLE 3 SUMMARY OF SOIL SAMPLING RESULTS South Oak Ridge Baptist Church Property 200 Evergreen Drive, Winston-Salem, Forsyth County Parameter (Analytical Method) TPH Action Limit (ppm) CR-1 CR-2 CR-3 CR-4 CR-5 CR-6 CR-7 Total Petroleum Hydrocarbons (3550) 100 283 108 BQL BQL BQL BQL BQL Total Petroleum Hydrocarbons (5035) 50 Not Requested Not Requested BQL BQL BQL BQL BQL Sample Collection Procedure Hand Grab Hand Grab Hand Grab Hand Grab Hand Grab Hand Grab Hand Grab Sample Location Beneath AST location. Beneath AST location. North wall of pit. East wall of pit. South wall of pit. West wall of pit. Center of pit floor. Sample Depth (ft. bls) 4.0 3.0 4.4 5.5 5.25 5.0 5.75 Date of Sample Collection 11/15/17 11/15/17 12/4/17 12/4/17 12/4/17 12/4/17 12/4/17 Incident Phase AST Removal AST Removal Initial Abatement Initial Abatement Initial Abatement Initial Abatement Initial Abatement Results in parts per million (ppm) = mg/kg. bls = below land surface APPENDIX A Photographic Documentation Photo 1. View of the AST prior to removal and excavation activities. Photo 2. View of the former AST location prior to excavation activities. Photo 3. View of the former AST location after removal of contaminated soils. Photo 4. View of the former AST location after backfilling the excavation pit with excavatable flowable fill cement slurry. APPENDIX B Disposal Manifests TANK DISPOSAL MANIFEST CRE Project # 238022590 Tank Owner/Location: South Oak Ridge Baptist Church 200 Evergreen Drive Winston-Salem, NC 27106 Tank Owners Authorized Representative: Cedar Rock Environmental, P.C. 107 Pioneer Trail, Graham, NC 27253 Robert A. Payne, President (336) 376-0394 Description of Tank(s): Tank # Capacity (gallons) Type Previous Contents 1 (AST) 275 Steel Heating oil Tank Owner’s Authorized Representative Certification: The undersigned certifies that the above listed storage tank(s) have been removed from the premises of the tank owner. Robert A. Payne 11/15/2017 Printed Name Signature Date Transporter: The undersigned certifies that the above listed storage tank(s) have been transferred to the O. K. Sales, Inc. scrap metal facility in Burlington, North Carolina. Robert A. Payne 11/16/2017 Printed Name Signature Date Disposal Certification: Robert A. Payne 11/16/2017 Printed Name Signature Date APPENDIX C Excavation Log PROJECT NO.: PROJECT: LOC.: COUNTY: DATE STARTED: DATE COMPLETED: CONTRACTOR: TANK # GALS. DIA. x LENGTH (ft.) DEPTH TO BOTTOM (ft.)CONTENTS DEPTH TO BEDROCK: GROUNDWATER: FREE PRODUCT ENCOUNTERED?SAMPLE NO.AND TYPEUSCSSYMBOLREMARKS DEPTHIN FEETSAMPLELOCATION(wall, floor, etc.)DESCRIPTION OF MATERIAL BACKFILL:VOL. REMOVED & DISPOSAL: No CEDAR ROCK ENVIRONMENTAL, P.C. FINAL DIMENSIONS OF EXC.: n/a EXCAVATION LOG Zebra Environmental, Inc Cement slurry 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 16 n/a Excavation terminated at 5.25 feet (pit center). 238022590 4.51 tons 4.00' (W) x 7.5' (L) x 5.25' (D) 12/4/17 12/4/17 South Oak Ridge Baptist Church Property 200 Evergreen Drive, Winston-Salem Forsyth 0 - 5.25' : red-brown, sandy SILT CR-4&5 CR-7 CR-2 CR-6 CR-3 CR-1 T1 275 3.67 x 5.0 x 2.25 #2 fuel oil AST APPENDIX D Sampling & Decontamination Procedures CEDAR ROCK ENVIRONMENTAL, P.C. SOIL SAMPLING PROCEDURES (Collection and Handling) Soil sampling will be performed by, or under, the direct supervision of a North Carolina licensed geologist. Care will be taken to minimize the loss of contaminants from the sample during sample collection, storage, and transport through disturbance of the internal structure of the soil and exposure to heat, sunlight, and air. Decontamination and handling procedures will be used that minimize the chance of cross-contamination of the samples during and after sample collection. All tools used to retrieve, divide, and collect the sample portion (e.g., hand augers, split-barrel sampler, stainless steel spoons, etc.) will be decontaminated prior to and after each use (between samples). See Decontamination Procedures. Vinyl disposable gloves will be worn during sample collection. Gloves will be changed as necessary after handling the sampling equipment (i.e., after breaking open split-barrels) to avoid cross-contamination. Contact between the gloved hand and the soil will be minimized by dividing and collecting the sample portion using a stainless steel spoon or knife. The sample portion will be collected from the core of the soil at the end of the sampling device where the deepest retrieved soil is represented (e.g., hand auger teeth). If the sample is being retrieved using the backhoe bucket, the sample portion will be collected from the consolidated material located directly behind one of the bucket teeth. A separate sampling implement will be used to scrape away foreign material if present and/or the soil which came into contact with the sample retrieving device in order to expose the core of the sample portion to be collected. Immediately upon removal from the ground, the sample will be placed in a laboratory-provided, decontaminated container. The sample container will be precooled, if possible, to minimize loss of volatiles. The sample portion will be disturbed as little as possible during placement into the container. The container will be filled leaving no head-space and immediately capped and sealed. Immediately upon collection, the exterior of the sample container will be wiped free of soil, if necessary, and placed in a ziplock bag to minimize cross-contamination. The sample will immediately be placed in a cooler of ice for storage and transport to the analytical laboratory. The sample will be labeled with sample identification number, project number, date and time of collection, and analyses to be conducted. The sample will be transported as soon as practical to a North Carolina certified laboratory under chain-of-custody. CEDAR ROCK ENVIRONMENTAL, P.C. EQUIPMENT DECONTAMINATION PROCEDURES Every effort will be made to prevent cross-contamination of soil and groundwater samples before, during, and after sample collection. It is company policy that drillers contracted by Cedar Rock decontaminate their drilling and sampling equipment with steam prior to, and after, each use and/or each boring. The following procedures apply to the decontamination of field equipment used by Cedar Rock employees. Soil Sampling Equipment Stainless steel hand augers, spoons, and knives will be cleaned prior to, and after, each use and/or each boring. If hand auger advancement of a borehole through contaminated soil is obvious or suspected, a clean auger bucket will be used to retrieve the sample portion. A fresh pair of disposable vinyl gloves will be worn while handling the sample container. Sampling equipment will be decontaminated by washing with phosphate-free soapy water; rinsing in tap water followed by an isopropyl alcohol rinse; and a final “triple” rinse with distilled water. The equipment will then be allowed to air dry. Clean sampling spoons and knives will be stored in a fresh ziplock bag. If available, steam may be used instead of the above procedure. Groundwater Sampling Equipment Use of groundwater level measuring devices will proceed from the wells known to be the least contaminated to those known to be more contaminated. If it is not known how contaminated the wells are, measurements will be taken on the up gradient wells prior to the down gradient wells. A fresh pair of disposable vinyl gloves will be worn at each well during water level and sample collection. Water level measuring and well sampling (i.e., pumps and lines) devices will be decontaminated between wells by washing the wetted portion of the device as described above. Each well will be sampled with a new disposable or decontaminated, dedicated bailer during each sampling event. New nylon or cotton string will be used during each sampling event on each bailer. If the bailer contains a significant quantity of silt or sand after purging the well of stagnant water, the bailer may be flushed with distilled water. The bailer will never come into contact with anything other than a gloved hand or the inside of the well casing. While allowing the well to recover, the bailer will be hung inside the well at the top of the casing. The string will be coiled and placed in a ziplock bag or vinyl glove such that it does not come into contact with other objects. Groundwater sample containers will be wiped dry and stored in individual ziplock bags. APPENDIX E Laboratory Reports & Chains-of-Custody