| Action Date |
Action |
Description |
DEC Staff |
| 4/6/2018 |
Spill Transferred from Prevention Preparedness and Response Program |
Spill transferred by PPRP staff Brandi Adams. Spill no. 18119908201; spill date = 3/23/18; substance = unknown; quantity = unknown; description: limited site investigation confirmed diesel range organics contamination at several locations above DEC cleanup levels. |
Mitzi Read |
| 4/9/2018 |
Site Added to Database |
A new site has been added to the database |
Mitzi Read |
| 4/23/2018 |
Potentially Responsible Party/State Interest Letter |
Potentially responsible party and work plan request letter mailed to RP. Work plan to address remaining contamination due on June 30, 2018. |
Amy Rodman |
| 6/4/2018 |
Update or Other Action |
work plan deadline extended from June 30 to August 1 to include additional data. |
Amy Rodman |
| 6/22/2018 |
Site Visit |
Site visit. Met with RP, took pictures and videos of maintenance shop areas and former UST locations. |
Amy Rodman |
| 7/26/2018 |
Document, Report, or Work plan Review - other |
Review July 24, 2018 report from Nortech for closure of five registered UST's at site. |
Amy Rodman |
| 7/27/2018 |
Meeting or Teleconference Held |
met with Nortech staff to discuss proposed site activities to be included in future work plan. |
Amy Rodman |
| 8/24/2018 |
Site Characterization Workplan Approved |
work plan approval letter mailed and emailed to RP. emailed to consultant. Proposed field work generally consists of field-screening with a photo-ionization detector (PID), excavation of contaminated soil, and soil sample collection for laboratory analysis. |
Amy Rodman |
| 3/4/2019 |
Site Characterization Report Approved |
ADEC Contaminated Sites Program staff reviewed and approved the Site Assessment Report: Southeast Roadbuilders, 4.8 Mile Haines Highway Haines, Alaska (report) dated January 14, 2019 by NORTECH for the Southeast Road Builders site in Haines, Alaska. This Report was submitted to ADEC’s Contaminated Sites Program via email on January 14, 2019. Field work conducted on October 17, 2018 and generally consisted of excavating contaminated soils, field-screening soil using the photo-ionization detector, and collecting soil samples for laboratory analysis of diesel range organics (DRO), gasoline range organics (GRO), residual range organic (RRO), volatile organic carbons (VOC), and polyaromatic hydrocarbons (PAH).
Excavation of contaminated soils were conducted until confirmed by PID screenings. Dimensions of the excavation pit was 17 feet by 45 feet and reached a depth to till of nine feet below ground surface (bgs). A total of 270 cubic yards of excavated soil yielded 3.5 cubic yards of soil with contamination above the Method Two Migration to Groundwater (MTG) soil cleanup level. The 3.5 cubic yards of soil were placed in a lined and bermed containment cell until incorporation into Southeast Road Builder’s asphalt plant. Remaining excavated soil was backfilled into the pit. Ten soil samples were collected for laboratory analysis at depths ranging from 8.5 feet bgs to 9 feet bgs. DRO was detected at concentrations below MTG soil cleanup levels in eight soil samples, ranging from 18.6 mg/kg to 148 mg/kg. DRO was detected above MTG soil cleanup levels in two soil samples (352 mg/kg and 538 mg/kg). RRO was detected below MTG soil cleanup levels in all ten samples, ranging from 61.3 mg/kg to 326 mg/kg. Ethylbenzene and toluene were detected in one soil sample, but at concentrations below MTG soil cleanup levels. N-Propylbenzene was detected in another soil sample, but at concentrations below MTG soil cleanup levels.
Three monitoring wells (pre-pack wells) were installed to characterize the extent of groundwater contamination. Due to 2018’s warm and dry summer in Southeast Alaska, only three of four of the planned monitoring wells were installed. Depth to groundwater in May was five feet bgs and depth to groundwater in October was nine feet bgs. Only two monitoring wells yielded water for collection of laboratory samples. GRO, DRO, RRO, BTEX, and most VOC concentrations were non-detect in the two groundwater samples collected. Methyl Ethyl Ketone (2-Butanone) and Chloromethane were detected, but at very low, estimated concentrations. Another round of groundwater sampling is requested in September 2019 (or after sufficient rain). |
Amy Rodman |
| 7/19/2019 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 80210 name: Southeast Road Builders |
Amy Rodman |
| 7/22/2019 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 80210 Southeast Road Builders. |
Amy Rodman |
| 7/10/2020 |
Leaking Underground Storage Tank Release Confirmed - Petroleum |
LUST site created in CSP database for source area Southeast Road Builders, 80210 |
Lisa Krebs-Barsis |
| 7/10/2020 |
Leaking Underground Storage Tank Cleanup Initiated - Petroleum |
Administrative action addition for LUST grant site tracking. |
Evonne Reese |
| 8/5/2020 |
Document, Report, or Work plan Review - other |
Reviewed Corrective action plan, sent comments and letter to RP discussing data gaps at the site. |
Lisa Krebs-Barsis |
| 8/24/2020 |
Meeting or Teleconference Held |
Meeting with RP, owners, former owners, and consultant to discuss path forward and location of additional monitoring wells. Verbal approval of work plan. |
Lisa Krebs-Barsis |
| 2/1/2021 |
Document, Report, or Work plan Review - other |
Reviewed report received September 25, 2020. Two monitoring wells to the south and south east of the known source area was installed. Samples were collected from all five monitoring wells and analyzed for VOC, PAH, GRO, DRO, and RRO. RRO was detected in MW4 and MW5, both results below cleanup levels. 4-isopropyltoluene was detected in MW5. Napthalene, 1-methylnapthalene, 2-methylnapthalene,and 1,2,4 trimethylbenzene were detected in MW4 below cleanup levels. All other analytes were not detected.
Additional information requested as update to the report. Updated report pending. |
Lisa Krebs-Barsis |
| 5/5/2021 |
Site Characterization Report Approved |
The department approved the final report submitted on March 2, 2021 documenting the 2021 groundwater monitoring. In the approval letter the department requested another round of sampling at
wells MW3, MW4, and MW5 to establish that the contaminant concentrations are stable. The department recommends delineation of contaminants in soil to migration to groundwater cleanup levels and removal of soil that exceeds maximum allowable concentrations to keep the area where institutional controls will be required as small as possible. |
Lisa Krebs-Barsis |
| 6/30/2021 |
Site Characterization Workplan Approved |
The department approved a work plan received on June 21, 2021. The work plan proposed sampling of wells MW3, MW4, and MW5. Samples will be analyzed for GRO, DRO, RRO, VOC, and PAH. |
Lisa Krebs-Barsis |
| 2/4/2022 |
Site Characterization Report Approved |
A report documenting groundwater sampling was submitted in October 2021 is approved. Three monitoring wells were sampled (MW-3, MW-4, and MW-5). Groundwater was analyzed for GRO, DRO, PAH, and VOC. Samples were supposed to be analyzed for RRO too but were not. Contaminants were not detected in the samples. |
Lisa Krebs-Barsis |
| 4/25/2024 |
Document, Report, or Work plan Review - other |
Work plan for monitoring well decommissioning approved. |
Bill O'Connell |
| 7/22/2024 |
Document, Report, or Work plan Review - other |
Monitoring wells MW1- MW5 were successfully decommissioned in July 2024. |
Bill O'Connell |
| 7/23/2024 |
Cleanup Complete Determination Issued |
The Alaska Department of Environmental Conservation, Contaminated Sites Program (DEC) has completed a review of the environmental records associated with the Southeast Road Builders contaminated site in Haines, Alaska. Based on the information provided to date, it has been determined that the contaminant concentrations remaining on site do not pose an unacceptable risk to human health or the environment and no further remedial action will be required as long as the institutional controls are maintained and effective, and no information becomes available that indicates residual contamination poses an unacceptable risk |
Bill O'Connell |
| 7/23/2024 |
Institutional Control Record Established |
Institutional Controls established and entered into the database. |
Bill O'Connell |
