| Action Date |
Action |
Description |
DEC Staff |
| 2/7/2014 |
Site Added to Database |
A new site has been added to the database |
Mitzi Read |
| 2/7/2014 |
Leaking Underground Storage Tank Release Confirmed - Petroleum |
LUST site created in CSP database for source area 500-Gallon Used Oil UST #3, 79600 |
Mitzi Read |
| 2/7/2014 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 79600 name: 500-Gallon Used Oil UST #3 |
Mitzi Read |
| 3/7/2014 |
Potentially Responsible Party/State Interest Letter |
DEC PRP letter was sent to Wrangell Public Works Director today by regular and electronic mail providing notice of statutory and regulatory responsibility as owner/operator of the facility. |
Bruce Wanstall |
| 7/28/2014 |
Document, Report, or Work plan Review - other |
DEC letter requesting a release investigation work plan for the groundwater contamination at the site, corrective action plan for 25 cy stockpile, and information on background concentrations of chromium in the area. |
Robert Weimer |
| 7/28/2014 |
Document, Report, or Work plan Review - other |
On June 22, 2012 during the removal of a 500 gallon used oil UST contamination was discovered. 25 cubic yards of contaminated soil was excavated and is currently stockpiled off site at Lot 4, Block 66, Wrangell Industrial Subdivision. Groundwater was encountered at 6 feet below ground surface. The one stockpile sample had 3,460 mg/kg DRO, 204 mg/kg GRO, 2,730 mg/kg RRO, non-detect PCBs, non-detect benzene, 1.23 mg/kg naphthalene, 2.78 mg/kg total xylenes, 89.3 mg/kg chromium, 2.18 mg/kg arsenic, and 14.0 mg/kg 1,3,5-trimethylbenzene, 23.5 mg/kg 1,2,4-trimethylbenzene. The two UST excavation samples and one duplicate collected on the west and south sidewalls at the soil/water interface were both over cleanup levels for VOCs, PAHs, arsenic, barium, and chromium. The west sidewall sample was also over cleanup levels for DRO. The excavation samples had up to 2,060 mg/kg DRO, 52.9 mg/kg GRO, 852 mg/kg RRO, 0.0182 mg/kg benzene, non-detect PCBs, 1.11 mg/kg arsenic, 1.11 m/kg barium, 0.247 mg/kg naphthalene, and 7.37 mg/kg 1,3,5-trimethylbenzene, 11.2 mg/kg 1,2,4-trimethylbenzene, 0.504 mg/kg 1-methylnapthalene, and 117 mg/kg chromium at the soil water interface on the west wall of the excavation. |
Robert Weimer |
| 7/28/2014 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 79600 500-Gallon Used Oil UST #3. |
Bruce Wanstall |
| 7/30/2014 |
Site Visit |
Site visit with Public Works director to inspect the soil removal site and off-site stockpile storage site |
Bruce Wanstall |
| 10/31/2014 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 79600 500-Gallon Used Oil UST #3. |
Bruce Wanstall |
| 12/31/2014 |
Leaking Underground Storage Tank Cleanup Initiated - Petroleum |
Administrative action addition for grant reporting purposes.
|
Evonne Reese |
| 3/9/2015 |
Update or Other Action |
Electronic mail request sent to the Public Works Director for information on the condition and location of the contaminated soil stockpiles generated from the UST closure by removal transported, with DEC approval, for storage between liners at Lot 4, Block 66, Wrangell Industrial Subdivision, on 5th Street. Recommended testing the soil for suitability for land spreading as a cap on the landfill. |
Bruce Wanstall |
| 5/5/2015 |
Update or Other Action |
DEC met with the new Public Works Director to discuss the stockpile(s) of contaminated soil from several sites in Wrangell stored on City land at the Spur Road rock pit. |
Bruce Wanstall |
| 2/11/2016 |
Site Visit |
Site inspection of the UST site at the Public Works Building. The soil stockpile is located on City-owned gated property on Spur Road in Wrangell. |
Bruce Wanstall |
| 10/10/2017 |
Update or Other Action |
Staff assigned changed from Sally Schlichting to Robert Weimer. |
Kathryne Roldan |
| 9/24/2018 |
Offsite Soil or Groundwater Disposal Approved |
DEC approves request to transport and disposal of 25 cubic yards of contaminated soil to Columbia Ridge Landfill in Arlington, Oregon. |
Robert Weimer |
| 5/6/2019 |
Offsite Soil or Groundwater Disposal Approved |
DEC receives documentation of the transport and disposal of 25 cubic yards of contaminated soil to Columbia Ridge Landfill in Arlington, Oregon. |
Robert Weimer |
| 5/7/2019 |
Update or Other Action |
To date DEC has not receive the release investigation work plan for the groundwater contamination at the site that was requested in the DEC July 28, 2014 letter. Since the arsenic, barium, and chromium concentrations in the excavation soil samples are similar regardless of the petroleum concentrations it does not appear that they are related to the used oil release. |
Robert Weimer |
| 5/8/2019 |
Update or Other Action |
Staff assigned changed from Robert Weimer to Jamie Grant. |
Robert Weimer |
| 5/23/2019 |
Workplan Requested |
Requested work plan to to investigate the nature and extent of remaining soil contamination and any potential groundwater contamination at the site. The work plan should include installation of long term monitoring well(s) and a sampling program sufficient to help assess seasonal and tidal groundwater influences as well as flow direction of groundwater. Soil samples should be collected at the soil/water interface (and the entire smear zone if there is tidal influence) to define any remaining soil contamination. |
Jamie Grant |
| 12/3/2019 |
Meeting or Teleconference Held |
Teleconference held with City of Wrangell and consultant to discuss site details and development of a work plan for Wrangell City Shop UST #3, and two other sites. Work plans expected 02/2020. |
Jamie Grant |
| 6/8/2020 |
Document, Report, or Work plan Review - other |
Work plan submitted 6/8/2020 to delineate the vertical and horizontal extent of remaining soil contamination and determine if groundwater has been impacted. ADEC provided comments and a revised work plan was submitted and reviewed 7/16/2020. |
Jamie Grant |
| 7/16/2020 |
Site Characterization Workplan Approved |
ADEC issued an approval letter to City and Borough of Wrangell and consultant for work outlined in the 7/16/2020 Site Characterization Work Plan. |
Jamie Grant |
| 7/16/2020 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 79600 500-Gallon Used Oil UST #3. |
Jamie Grant |
| 2/25/2022 |
Document, Report, or Work plan Review - other |
On this date, DEC approved the report titled Site Characterization Activities, Wrangell City Shop, 1119 Case Avenue, Wrangell, Alaska; ADEC File No. 1529.26.010. This report details site characterization activities conducted in August and September of 2021 at the Wrangell City Shop. Site characterization included advancing soil borings, installing groundwater monitoring wells, and collecting analytical soil and groundwater samples. Four soil borings, B1 through B4, were advanced and completed as monitoring wells MW1 through M4. Monitoring wells MW1 and MW2 were not developed due to the petroleum sheen/odor and the presence of free product in the wells. Monitoring well MW1, MW3, and MW4 were sampled. Diesel range organics (DRO) (up to 7,750 milligrams per kilogram [mg/kg]) were detected in the samples collected from borings B1 through B4 at concentrations greater than the DEC soil cleanup level. Naphthalene (0.270 mg/kg), 1,2,4-trimethylbenzene (2.26 mg/kg), and 1,3,5- trimethylbenzene (1.26 mg/kg) were detected at concentrations greater than the DEC soil cleanup levels in boring B1. Residual range organics (RRO) (up to 10,300 mg/kg), benzene (0.675 mg/kg), 1,2,4-trimethylbenzene (0.761 mg/kg), naphthalene (up to 0.150 mg/kg), and hexavalent chromium (0.42 J mg/kg) were detected at concentrations greater than the DEC soil cleanup levels in boring B2. The remaining tested analytes were either not detected or detected at concentrations less than the DEC soil cleanup levels. Concentrations of DRO (up to 14,300 micrograms per liter [µg/L]), RRO (up to 1,790 µg/L), ethylbenzene (up to 22.2 µg/L), total xylenes (up to 222 µg/L), 1,2,4-trimethylbenzene (up to 174 µg/L), naphthalene (up to 17.4 µg/L) were detected in the primary/duplicate sample set collected from monitoring well MW1 at concentrations greater than the DEC groundwater cleanup levels. Hexavalent chromium was not detected in the groundwater samples. The remaining tested analytes were either not detected or detected at concentrations less than the ADEC groundwater cleanup levels. |
Brandi Tolsma |
