Site Report: Nightmute School
| Site Name: | Nightmute School |
|---|---|
| Address: | South of Kaugia Street, Nightmute, AK 99690 |
| File Number: | 2435.38.004 |
| Hazard ID: | 25381 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 60.476958 |
| Longitude: | -164.721932 |
| Horizontal Datum: | WGS84 |
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We make every effort to ensure the data presented here is accurate based on the best available information currently on file with DEC. It is therefore subject to change as new information becomes available. We recommend contacting the assigned project staff prior to making decisions based on this information.
Problems/Comments
A 500-gallon aboveground storage (day) tank, located off the northeast corner of the generator building at the Nightmute school, had historic spills. There were two other day tanks and a tank farm also at this location. During a 2001 site assessment, stressed vegetation was noted downgradient of the generator day tank possibly from a 225-gallon spill in 1997. Soil samples collected about 30 and 60 feet downgradient of the generator bldg day tank at 1.5 ft. bgs and 1.0 ft. bgs. contained DRO at 239 mg/kg and 412 mg/kg, respectively. GRO, RRO, and BTEX were detected below cleanup levels. Currently, there is a drinking water well at the school that is 56 feet deep.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 3/20/2009 | Site Added to Database | A new site has been added to the database | Mitzi Read |
| 3/20/2009 | Exposure Tracking Model Ranking | Initial ranking with ETM completed for source area id: 78741 name: 500-Gallon AST (Day Tank) | Mitzi Read |
| 3/13/2012 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 78741 500-Gallon AST (Day Tank). | Keather McLoone |
| 3/28/2013 | Update or Other Action | Project management transferred to Bernhardt. | Richard Bernhardt |
| 3/29/2013 | Update or Other Action | Updated coordinates in database by comparing Google Earth imagery with 2001 site map from Oasis Environmental. | Richard Bernhardt |
| 4/1/2013 | Meeting or Teleconference Held | Project manager (Bernhardt) spoke with Gary Hanson (LKSD Facility Manager) and James Mikesell (LKSD Regulatory Compliance Specialist) on 29 March about characterizing possible contamination that may remain at the subject site 15 years after its release. Project manager followed up with Jim Mikesell on 1 April to see what resources are available in Nightmute to help with remediation and site characterization and to discuss options for making progress after snow melts and the ground thaws. | Richard Bernhardt |
| 10/9/2013 | Update or Other Action | It was reported today that school district will be investigating contamination prior to school expansion project. Consultant will be making a recon trip to Nightmute next week and will follow-up with DEC. | Linda Nuechterlein |
| 10/14/2013 | Update or Other Action | Restoration Science/xconsultant called today and confirmed that they will be conducting characterization/sampling at the Nightmute School starting Oct 16, 2013. They will attempt to delineate the contamination for the school district to assist in planning for the new school construction project. The consulant will follow-up with DEC, once sample results are available. | Linda Nuechterlein |
| 1/13/2014 | Update or Other Action | On this day, DEC received the Nightmute School Limited Environmental Site Characterization report, dated December 2013. Site characterization activities were performed at this site on October 16 through 18, 2013. Characterization efforts were focused on the eastern and southeastern sides of the school, where previous spills were documented, near day tanks, the decommissioned tank farm, and areas of piping. Numerous field screening samples and 17 soil samples for laboratory analysis (including a duplicate) were collected from between 8, 18, or 36 inches below ground surface (bgs) at this site. A drinking water sample was also collected during field activities. One soil sample, collected from 8 inches bgs, east of the school, and near an AST exhibited DRO at 1,320 mg/Kg, which exceeds the ADEC cleanup level of 250 mg/Kg (A sample collected from 18 bgs in this same location did not exhibit any analyte concentrations above ADEC cleanup criteria). None of the other analytes in any of the soil or water samples were detected at concentrations that exceeded the ADEC cleanup criteria. | Joshua Barsis |
| 1/13/2014 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 78741 500-Gallon AST (Day Tank). | Joshua Barsis |
| 1/28/2014 | Cleanup Complete Determination Issued | Joshua Barsis |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| DRO | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil |
Control Type
| Type | Details |
|---|---|
| No ICs Required |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. |
No associated sites were found.