The URL can be used to link to this page

Home My WebLink AboutDERR-2024-011430Table of Contents 1.Internal Memorandum 2.RBCA Tier 1 Worksheet 3. Supplemental Information Sheet 4.Site Map 5.Soil Analytical Results 6.Groundwater Analytical Results 7.Water Rights Map 8.Groundwater Protection Zones Map 9.Topographic Map Closure Packet for No Further Action Facility ID 1200360 Release ID OLM located at 2222 South 1900 West, Ogden, Utah Facility Information Facility Name:WEBER COUNTY CORP. ROAD DEPT.Release ID:OLM Facility Address:2222 S 1900 W OGDEN, UT 84401 Facility ID:1200360 Notification Date:08/28/2024 Owner Name:UTAH STATE FUEL NETWORK Reporting Party:Spackman Owner Address:4315 S 2700 W SALT LAKE CITY, UT 84129 Project Manager:Alex Thompson Site Assessment Information a. Contaminant Source Information Cause of Release (if known) Product Released Amount Released (gal) Size (gal) # of USTs Tank Piping Disp Over/Spill Other Comments Gasoline 12,000 Diesel 12,000 Waste Oil Unknown Other Tank Piping Disp Free Prod Cont Soil Sources Removed:Yes Yes Yes No No b. Land Use Information Current Land use at the Site:Industrial Surrounding Neighborhood:Industrial (Note: Surrounding land use is Residential if one or more residences share a common property line with the Facility) c. Soil Information Soil Type(s) Depth to Contaminated Soil (feet below land surface): No Cont. Soil SW-Well-graded sands @ 10' SW-Well-graded sands @ 3' Method of Soil Type Identification:Unified Soil Classification d. Groundwater Information Was groundwater encountered?:Yes Thickness of Free Product:None Depth to groundwater (feet below land surface): 10'Is groundwater impacted at any concentration: Yes Groundwater flow direction:NW ? Inferred Slope direction of surface topography:NW e. Distance from Highest Measured Contaminated Concentrations and Sampling Location to Nearest Potential Receptor Receptors:(Enter distance to each receptor from corresponding sampling location in feet) Distance- Location Distance- Location Water Line:NP - Sewer Line:NP - Building Desc: Electrical:NP - Natural Gas:NP - Other Desc: Building:NP - Telephone:NP - Property Line NP - Storm Drain:NP - Other(specify): - Receptors Within 500 feet: Municipal Well:>500 Domestic Well:>500 Irrigation Well:>500 Other: Surface Water(specify type: lake, stream, creek, river, wetland):Dist: ~180' Desc: Wilson Canal Utah's RBCA Tier 1 Worksheet Printed on: 10/2/2024 3:11:15 PM Facility History - Executive Summary Both GW samples are over ISLs (1.3 and 1.4 mg/L). Too close to Wilson Canal. See Supplemental Info. RBCA Tier 1 Screening Level Evaluation Groundwater(mg/L)Soil(mg/Kg) Constituent ISL/Tier 1 Level Highest Concentration and Sampling Location ISL/Tier 1 Level Highest Concentration and Sampling Location Benzene 0.005/0.30 <0.005 GW-1 @ 10'0.20/0.90 <0.01 SS-1 @ 10' Toluene 1.0/3.00 <0.012 GW-1 @ 10'9.0/25.0 <0.03 SS-1 @ 10' Ethylbenzene 0.7/4.00 <0.012 GW-1 @ 10'5.0/23.0 <0.03 SS-1 @ 10' Xylenes 10.0/10.0 <0.012 GW-1 @ 10'142.0/142.0 <0.03 SS-1 @ 10' Napthalene 0.70/0.70 <0.012 GW-1 @ 10'51.0/51.0 <0.03 SS-1 @ 10' MTBE 0.20/0.20 <0.005 GW-1 @ 10'0.30/0.30 <0.01 SS-1 @ 10' TPH-gasoline 1.0/10.0 <0.125 GW-1 @ 10'150/1500 <0.317 SS-1 @ 10' TPH-diesel 1.0/10.0 1.4 GW-1 @ 10'500/5000 <65 SS-1 @ 10' Oil and Grease/TRPH 10.0/10.0 NA NA 1000/10000 NA NA Recommended Tier 1 Actions All contaminant concentration levels are below ISLs or below Tier 1 screening levels and no receptors are within the critical distances. Recommendation - No further action. Tier 1 criteria (contaminant concentration and/or distance to receptors) are exceeded at the site. Recommendation - See attached supplemental information worksheet. Evaluation Completed by:Date: DERR Project Manager's Signature Utah's RBCA Tier 1 Worksheet Printed on: 10/2/2024 3:11:15 PM 10/2/2024 1 SUPPLEMENTAL INFORMATION September 24, 2024 Utah State Fuel Network, Weber County Roads Department 2222 South 1900 West, Ogden, Utah Facility Identification No. 1200360, Release Site OLM Release History and Current Property Use Release OLM was reported to the DERR on August 28, based on UST closure sampling results. Two 12,000-gallon diesel USTs were removed during the closure activities. The property is bordered by the Wilson Canal on the North-West and Northern borders. The OLM release is located roughly 175 feet from the closest section of the Wilson Canal. The are two prior releases, FXW and JWU, both closed in 1996 and 1998, respectively. Historic satellite imagery and site plats from records show the location of both prior releases to the west of where OLM occurred. The old fueling facility was demolished and a new station was built sometime before 1997. The station is converting completely over to above ground storage tanks. The site is currently still Weber County Roads Department. There are no plans to change the type of land use. Surrounding land use is of a mixture of commercial and industrial properties. Nature and Extent of Contamination Soil and groundwater samples were taken during the most recent closure of the USTs at the fueling depot. All soil samples were under ISLs for all BTEXN and TPH contaminants. Both groundwater samples were over ISLs (1.4 and 1.3 mg/L) for TPH-DRO but under the Tier 1 level. All other groundwater contaminant results were under ISLs. Actions Taken to Eliminate or Control the Source of Contamination The main action has been the removal of the UST’s and the updating of the facility’s petroleum storage tank infrastructure. Impact of Remaining Contamination on Public Health and the Environment Groundwater In gestion Exposure Pathway According to the DWR database, there are no municipal wells, irrigation or domestic wells within 500 feet radius of the release. The site is not located in a DDW Groundwater Protection Zone. The certified sampler also confirmed there are no water lines within 30 feet of both concentrations of TPH-DRO. This pathway in incomplete. Soil Leaching-to-Groundwater All soil samples yielded contaminant results under ISLs. This pathway is not complete. Vapor Intrusion-to-Indoor Air Exposure Pathway There are no buildings overlaying the remaining contamination, therefore this pathway is incomplete. 2 Surface Soil Exposure Pathway: Dermal Contact, Particulate Inhalation and Ingestion, and Construction Worker There are no petroleum contaminated soils exposed to the surface, therefore this pathway is incomplete. Economic Considerations and Cost-Effectiveness of Cleanup Options The levels of TPH-DRO remaining on-site are minimal and do not warrant further corrective action. If migration of present contamination does occur, the levels will likely be below action levels at property boundary. One receptor, the Wilson Canal, lies within critical Tier 1 distances but the depth to contamination is approximately 10 feet bgs and migration upward is highly unlikely. Removing remaining contamination would not be cost effective, and the expense would not be worth the effort. Technology Available for Cleanup In-situ remediation could be considered to clean up the remaining contamination, but this method is not feasible and/or cost effective. It should be mentioned that natural processes will likely breakdown whatever contamination is at the site in the future. 3 Facility Site Plat (Closure Notice) The site plat must be drawn to an appropriate identified scale. It must show planned sampling locations, substances stored in tanks, and other relevant information. Tank and sample identification numbers must be consistent with the information given on p. 1 and 4 of the Closure Notice. Facility ID: Drawn By: Date: X = Sample locations (SS-#, WS-#, USC-#)Site Plat Must Indicate Actual Locations Of: 0 = Monitoring Wells (MW-#) Current & former tanks, piping & dispensers = Soil boring (SB-#), or Geoprobe Boring (GP-#) = Water Wells (domestic, livestock, etc.)boundaries Slope of Surface Topography: (N,NW,W,SW,S,SE,E,NE) Land Use At Site: Residential Commercial Industrial Surrounding Land: Residential Commercial Excavations, GW monitoring wells & soil stockpiles North Scale: 1”= Feet 1200360 Aaron Spackman 08/23/24 ISL Tier 1 SS-1 @ 10'SS-2 @ 10'SS-3 @ 3'SS-4 @ 4' Soil (mg/kg) UST Closure Samples Benzene 0.2 0.9 <0.01 <0.01 <0.01 <0.01 Ethylbenzene 5 23 <0.03 <0.03 <0.03 <0.02 MTBE 0.3 0.3 <0.01 <0.01 <0.01 <0.01 Napthalene 51 51 <0.03 <0.03 <0.03 <0.02 Toluene 9 25 <0.03 <0.03 <0.03 <0.02 Xylenes 142 142 <0.03 <0.03 <0.03 <0.02 GRO 150 1500 <0.317 <0.274 <0.266 <0.238 DRO 500 5000 <65 <65 <53 <50 Groundwater (mg/L) UST Closure Samples GW-1 @ 10'GW-2 @ 10' Benzene 0.005 0.3 <0.005 <0.005 Ethylbenzene 0.7 4 <0.012 <0.012 MTBE 0.2 0.2 <0.005 <0.005 Napthalene 0.7 0.7 <0.012 <0.012 Toluene 1 3 <0.012 <0.012 Xylenes 10 10 <0.012 <0.012 GRO 1 10 <0.125 <0.125 DRO 1 10 1.4 1.3 35-5488 35-1578 35-2275 35-2279 35-2126 35-212735-2129 35-528 35-133 35-623 35-3316 35-334435-698 35-347 35-3497 35-3640 35-734 35-775 35-775 35-11482 35-4524 35-461 35-155 35-159 35-12244 DERR - Points of Diversion Utah Points of Diversion Surface Underground 500 feet 1000 feet 0 0.2 0.40.1 km 2/0 /ocation 35-526 35-4524 35-187 35-805 35-133 35-2275 35-2279 35-334435-698 35-157 Closest Water Right to OLM Utah Points of Diversion Underground Water Rights 0 0.14 mi a850 feet OLM 4 1 4 3 4 4 DWQ - Groundwater Protection Zones 1000 feet 1000 feet 0 0.9 1.80.45 km : OLM U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY SCALE 1;Z4000 TIH,""Pw.,, ,oto,ooto,m4,t,.., M,t;,"-',C-Wtio\"'°"''�l'5TC<>O.,_«'.,nStan,;:1a,! ROY QUADRANGLE UTAH 7.S-MINUTE SERIES ROY, UT 2023 : OLM Location