| Action Date |
Action |
Description |
DEC Staff |
| 8/20/2015 |
Document, Report, or Work plan Review - other |
Date of receipt for Report of Regulated Site Closure and Site Assessment/Release Investigation Facility Id #3594 prepared by Montauk on behalf of DHSS. The work was performed in June 2015 and included approximately 50 cubic yards of soil excavated and treated at YK Solutions under an approved YK Solutions Operations Plan. Excavation was to about 10 ft bgs and confirmation samples collected from sidewalls and excavation bottom (base) with both types of samples well above the most conservative applicable criteria. Contamination suspected to be related to overfilling as tank and piping reportedly did not have "significant" issues. Report recommends a groundwater investigation in the form of a test hole advanced below the tanks former "invert elevation" bottom. The necessary additional release investigation/site characterization wouldn't necessarily be conducted according to that recommendation although potential impacts to groundwater should be investigated as well as defining the extent of contamination. |
Lisa Griswold |
| 9/28/2015 |
Site Added to Database |
A new site has been added to the database |
Lisa Griswold |
| 9/28/2015 |
Leaking Underground Storage Tank Release Confirmed - Petroleum |
LUST site created in CSP database for source area UST #1, 79829 |
Lisa Griswold |
| 9/28/2015 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 79829 name: UST #1 |
Lisa Griswold |
| 10/8/2015 |
Potentially Responsible Party/State Interest Letter |
PRP letter sent to State of Alaska Department of Health and Human Services |
Lisa Griswold |
| 1/14/2016 |
Site Characterization Workplan Approved |
Site Characterization Work Plan was reviewed and approved, conditional upon the consultant submitting the field notes with the final report. The work plan details that at least six soil borings will be done, with at least three being completed as monitoring wells to evaluate the soil and possible groundwater contamination around the location of the former UST. |
Lisa Griswold |
| 4/11/2016 |
Site Characterization Report Approved |
Site Characterization Report approved on this date. Site characterization indicates from sampling that occurred between January 26-29 2016 that up to 22,100 mg/Kg of Diesel Range Organics; 749 mg/Kg Gasoline Range Organics (GRO); .444 mg/Kg benzene; 6.93 mg/Kg toluene; 7.56 ethylbenzene; and 73.7 mg/Kg total xylenes remains in soil. 2-methylnapthalene was detected up to 7.03 mg/Kg. Other PAHs were detected but below ADEC 2008 cleanup levels. Groundwater had detectable GRO, toluene, ethylbenzene and total xylenes, but they were also below ADEC 2008 cleanup levels. ADEC requests a second round of groundwater sampling be performed in six months to evaluate seasonal changes in groundwater depth since contaminated soil is only 3 feet above winter groundwater levels. ADEC requests that a groundwater monitoring work plan be submitted 60 days before proposed sampling date. |
Lisa Griswold |
| 9/30/2016 |
Leaking Underground Storage Tank Cleanup Initiated - Petroleum |
Administrative action addition for grant reporting purposes.
|
Evonne Reese |
| 10/3/2016 |
Document, Report, or Work plan Review - other |
ADEC approved of Restoration Science & Engineering, LLC's Bethel Youth Facility UST #1 Site Characterization - August 2016 Groundwater Monitoring Event on this date. Gasoline Range Organics was detected up to 0.0502 J mg/L, an estimated value, but far below ADEC Table C cleanup levels. Benzo(a)Anthracene, Benzo(a)pyrene, Benzo[b]Fluoranthene, Dibenzo[a,h]anthracene, and Indeno[1,2,3-c,d] pyrene were not detected at the Detection Limit, but the Limit of Detection is higher than the Table C Groundwater Cleanup level. ADEC requested an additional round of groundwater monitoring be completed in 2017 to be sure that contaminants are not able to migrate to groundwater. The event should be held in 2017, and a new groundwater monitoring work plan should be submitted 60 days before sampling if a new sampling method will be used. |
Lisa Griswold |
| 5/11/2017 |
Update or Other Action |
Letter sent to RP informing them that project management was being transferred to Rodman, and that the 2017 groundwater monitoring work plan or report should be submitted to Rodman for review. |
Lisa Griswold |
| 5/11/2017 |
Update or Other Action |
Site transferred to Rodman |
Lisa Griswold |
| 8/24/2017 |
Update or Other Action |
Approval to conduct round of groundwater sampling (via email to consultant) per ADEC-approved January 2016 Site Characterization Work Plan. Four groundwater monitoring wells sampled. |
Amy Rodman |
| 11/29/2017 |
Site Characterization Report Approved |
The Alaska Department of Environmental Conservation, Contaminated Sites Program (ADEC) reviewed the “Bethel Youth Facility UST #1 Site Characterization – August 2017 Groundwater Monitoring Event Report” (report) dated September 27, 2017 for the DHSS Bethel Youth Facility UST #1 site in Bethel AK. The report was submitted via email on October 11, 2017 by Restoration Science & Engineering, LLC (Restoration). The described field effort was conducted on August 28, 2017 and generally consisted of field-screening with a photo-ionization detector (PID), advancing soil borings, collecting groundwater samples for laboratory analysis, and managing investigation-derived waste (IDW). |
Amy Rodman |
| 4/9/2018 |
Site Characterization Workplan Approved |
The Alaska Department of Environmental Conservation, Contaminated Sites Program (ADEC) reviewed and approved. the “Well Decommission Work Plan for Bethel Youth Facility UST #1 Work Plan” (Work Plan) dated April 5, 2018 for the DHSS Bethel Youth Facility UST #1 site in Bethel AK. The Work Plan was submitted via email on April 5, 2018 by Restoration Science & Engineering, LLC and generally consists of decommissioning four groundwater monitoring wells (MW-1, MW-3, MW-4, and MW-8) to assist in closure of the site. |
Amy Rodman |
| 2/5/2019 |
Update or Other Action |
ADEC reviewed and approved the “Bethel Youth Facility UST #1 Monitoring Well Decommissioning Report” (report) dated December 16, 2018 for the DHSS Bethel Youth Facility UST #1 site in Bethel AK. The report was submitted via email on December 17, 2018 by Restoration Science & Engineering, LLC (Restoration). The described field effort was conducted on October 19, 2018 and generally consisted of decommissioning four groundwater monitoring wells (MW-1, MW-3, MW-4, and MW-8). The well casing for two of the four groundwater monitoring wells broke off or became stuck in the subsurface (MW-4 & MW-8). MW-1 and MW-3 were completely removed, filled with grout to two feet below ground surface (bgs), and then filled with sandy gravel to ground surface. ADEC will evaluate this site for closure. |
Amy Rodman |
| 11/27/2019 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 79829 UST #1. |
Amy Rodman |
| 7/21/2021 |
Update or Other Action |
J. Fix assigned as new Project Manager. |
Julie Fix |
| 6/3/2022 |
Site Visit |
Site visit. |
Julie Fix |
| 6/20/2022 |
Update or Other Action |
Updated the affiliates add to reflect current land ownership information. |
Julie Fix |
