Site Report: Chitina Power Plant

Site Name:	Chitina Power Plant
Address:	Upper Village Road Jct., with Lower Village Road, Chitina, AK 99566
File Number:	2211.38.001
Hazard ID:	3768
Status:	Active
Staff:	Alena Voigt, 9072697556 alena.voigt@alaska.gov
Latitude:	61.510221
Longitude:	-144.451257
Horizontal Datum:	WGS84

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.

Site Chronology
IC / Closure Details
Documents
Associated Sites

Problems/Comments

Release of 1000-1500 gallons of #1 diesel at generators discovered in December 2001. Approximately 200 cubic yards of contaminated soil excavated to bedrock and to clean soils on all sides, except towards a new generator building to avoid compromising structural integrity of the building that now houses the generators. The contaminated soils were placed in a lined remediation cell about 200 feet from the excavation.

Action Information

Action Date	Action	Description	DEC Staff
1/9/2002	Potentially Responsible Party/State Interest Letter	From Spill Response record prior to February 4, 2003 transfer to Contaminated Sites Program: ADEC letter dated 1/9/2002 from Valdez Office spill response staff to Chitina Native Corporation/Chitina Native Village notified them as the owner that they are potentially financially responsible for contamination and costs will be recovered.	Former Staff
1/27/2002	Update or Other Action	From spill response file: On 1/27/2002 ADEC received a corrected version of a figure showing field sample locations.	Former Staff
9/12/2002	Update or Other Action	From spill response file: Corrective Action Plan dated 9/12/2002 in file.	Former Staff
11/13/2002	Document, Report, or Work plan Review - other	From spill response file: ADEC spill response staff received the "Site Characterization for Diesel Fuel Release, Chitina Power Plant, Chitina, Alaska, November, 2002" report for work done in September 2002. Site work is described in the report as partial site characterization consisting of excavation, removal and stockpiling of approximately 165 cubic yards of petroleum contaminated soil; field screening and collection of soil samples for BTEX, DRO and RRO analysis; and collection of soil samples for PCB and lead analysis. Contaminated soil directly beneath the source area was removed to bedrock at 16.5 - 18 feet below ground surface. Samples collected from the limits of the excavation exceeded cleanup levels for BTEX, DRO and RRO. PCBs were not detected in soil below a leaking, modern transformer. Soil collected adjacent to a pallet of 12-volt batteries did not exceed ADEC cleanup levels for lead. Consultant BESTECH recommended additional characterization including sampling the community drinking water well located approximately 486 feet southwest of the contaminated area.	Former Staff
12/2/2002	Update or Other Action	From spill response file: ADEC received notification by email from consultant BESTECH (Boreal Environmental Services and Technology) that BESTECH believes contamination is confined to the area between a trench excavated on the south side of the generator shed and the north side of the generator shed. The email also notes that water samples taken from the community well were no-detect for PAH, BTEX, DRO and RRO.	Former Staff
12/15/2002	Document, Report, or Work plan Review - other	From spill response file: ADEC received the "Addendum to Site Characterization, December 2002" report for additional work performed with ADEC spill response approval pursuant to the recommendations in the November 2002 site characterization report. Approximately 102 square feet of surface area was excavated during the investigation, including soil removed to bedrock within a trench excavated approximately 34 feet long and 3 feet wide south of the existing Chitina Power Plant generator shed to determine whether contamination was present on the opposite side of the generator shed from the spill site.	Former Staff
2/4/2003	Spill Transferred from Prevention Preparedness and Response Program	ADEC spill response staff transferred the site to the Contaminated Sites Program in a memo dated February 4, 2003. The memo provides contact information for representatives of the Native Village of Chitina Power Plant (CPP) as the responsible party and summarizes work done through that date. All excavated contaminated soils were placed in a lined remediation cell about 200 feet to the East-Southeast of the excavation at the former generator building for treatment by cell remediation as described in the Sept. 12, 2002 corrective action plan submitted by BESTECH.	Jim Frechione
1/7/2004	Site Added to Database	DRO and all BTEX components exceed cleanup levels in soil remaining beneath and adjacent to replacement generator building. Maximum concentrations: DRO 76,700 mg/kg; benzene 11.8 mg/kg; toluene 68.4 mg/kg; ethylbenzene 42.2 mg/kg; and total xylenes 207 mg/kg.	Cliff Walden
1/12/2004	Site Ranked Using the AHRM	Initial site ranking using the most conservative approach due to proximity to the community center.	Cliff Walden
9/22/2014	Update or Other Action	Contacted site owner as RP by telephone on 9/22/2014; will follow up with letter requesting status of bioremediation cell and frequency of drinking water well sampling and analysis.	Eileen Olson
9/24/2014	Exposure Tracking Model Ranking	Initial ranking with ETM revised on 9/24/2014 for source area id: 74743 name: surface diesel release. (Initial ETM ranking done on 11/8/2007 was revised based on information not previously available).	Eileen Olson
10/3/2014	Update or Other Action	ADEC letter dated 10/3/2014 issued with subject line "Request for information and notification of ADEC cost recovery requirements."	Eileen Olson
1/26/2015	Update or Other Action	ADEC letter: request for drinking water well search and testing	Eileen Olson
6/26/2015	Document, Report, or Work plan Review - other	ADEC letter issued on 6/26/2015 conditionally approving work plan dated June 22, 2015. The plan proposes to sample area drinking water wells and a stockpile present at the site since 2002.	Eileen Olson
8/12/2015	Update or Other Action	On 8/12/2015 consultant Lyle Gresehover notified ADEC by email that he will be conducting the site visit/sampling event on Friday 8/14/15, with samples collected per the approved Corrective Action Work Plan and a Final Report to follow upon receipt of analytical results.	Eileen Olson
6/16/2016	Update or Other Action	ADEC contacted the responsible party and consultant by email to request the status of the report for work done according to the plan approved in ADEC's letter dated June 26, 2015.	Eileen Olson
10/25/2017	Update or Other Action	ADEC contacted the responsible party and consultant by email on this date to inquire whether work was done as proposed in the plan approved by ADEC's letter dated June 26, 2015 and whether a report is forthcoming. ADEC did not receive a response to the last inquiry on 6/16/2016.	Eileen Olson
11/14/2019	Update or Other Action	Chitina Electric Inc. was emailed an "Overdue Report Letter" via email. The RP & QEP were unavailable by phone. They were contacted by phone at their offices. Both the RP and the QEP were left messages.	Randy Guintu

Action Date

Action

Description

DEC Staff

1/9/2002

Potentially Responsible Party/State Interest Letter

From Spill Response record prior to February 4, 2003 transfer to Contaminated Sites Program: ADEC letter dated 1/9/2002 from Valdez Office spill response staff to Chitina Native Corporation/Chitina Native Village notified them as the owner that they are potentially financially responsible for contamination and costs will be recovered.

Former Staff

1/27/2002

Update or Other Action

From spill response file: On 1/27/2002 ADEC received a corrected version of a figure showing field sample locations.

Former Staff

9/12/2002

Update or Other Action

From spill response file: Corrective Action Plan dated 9/12/2002 in file.

Former Staff

11/13/2002

Document, Report, or Work plan Review - other

From spill response file: ADEC spill response staff received the "Site Characterization for Diesel Fuel Release, Chitina Power Plant, Chitina, Alaska, November, 2002" report for work done in September 2002. Site work is described in the report as partial site characterization consisting of excavation, removal and stockpiling of approximately 165 cubic yards of petroleum contaminated soil; field screening and collection of soil samples for BTEX, DRO and RRO analysis; and collection of soil samples for PCB and lead analysis. Contaminated soil directly beneath the source area was removed to bedrock at 16.5 - 18 feet below ground surface. Samples collected from the limits of the excavation exceeded cleanup levels for BTEX, DRO and RRO. PCBs were not detected in soil below a leaking, modern transformer. Soil collected adjacent to a pallet of 12-volt batteries did not exceed ADEC cleanup levels for lead. Consultant BESTECH recommended additional characterization including sampling the community drinking water well located approximately 486 feet southwest of the contaminated area.

Former Staff

12/2/2002

Update or Other Action

From spill response file: ADEC received notification by email from consultant BESTECH (Boreal Environmental Services and Technology) that BESTECH believes contamination is confined to the area between a trench excavated on the south side of the generator shed and the north side of the generator shed. The email also notes that water samples taken from the community well were no-detect for PAH, BTEX, DRO and RRO.

Former Staff

12/15/2002

Document, Report, or Work plan Review - other

From spill response file: ADEC received the "Addendum to Site Characterization, December 2002" report for additional work performed with ADEC spill response approval pursuant to the recommendations in the November 2002 site characterization report. Approximately 102 square feet of surface area was excavated during the investigation, including soil removed to bedrock within a trench excavated approximately 34 feet long and 3 feet wide south of the existing Chitina Power Plant generator shed to determine whether contamination was present on the opposite side of the generator shed from the spill site.

Former Staff

2/4/2003

Spill Transferred from Prevention Preparedness and Response Program

ADEC spill response staff transferred the site to the Contaminated Sites Program in a memo dated February 4, 2003. The memo provides contact information for representatives of the Native Village of Chitina Power Plant (CPP) as the responsible party and summarizes work done through that date. All excavated contaminated soils were placed in a lined remediation cell about 200 feet to the East-Southeast of the excavation at the former generator building for treatment by cell remediation as described in the Sept. 12, 2002 corrective action plan submitted by BESTECH.

Jim Frechione

1/7/2004

Site Added to Database

DRO and all BTEX components exceed cleanup levels in soil remaining beneath and adjacent to replacement generator building. Maximum concentrations: DRO 76,700 mg/kg; benzene 11.8 mg/kg; toluene 68.4 mg/kg; ethylbenzene 42.2 mg/kg; and total xylenes 207 mg/kg.

Cliff Walden

1/12/2004

Site Ranked Using the AHRM

Initial site ranking using the most conservative approach due to proximity to the community center.

Cliff Walden

9/22/2014

Update or Other Action

Contacted site owner as RP by telephone on 9/22/2014; will follow up with letter requesting status of bioremediation cell and frequency of drinking water well sampling and analysis.

Eileen Olson

9/24/2014

Exposure Tracking Model Ranking

Initial ranking with ETM revised on 9/24/2014 for source area id: 74743 name: surface diesel release. (Initial ETM ranking done on 11/8/2007 was revised based on information not previously available).

Eileen Olson

10/3/2014

Update or Other Action

ADEC letter dated 10/3/2014 issued with subject line "Request for information and notification of ADEC cost recovery requirements."

Eileen Olson

1/26/2015

Update or Other Action

ADEC letter: request for drinking water well search and testing

Eileen Olson

6/26/2015

Document, Report, or Work plan Review - other

ADEC letter issued on 6/26/2015 conditionally approving work plan dated June 22, 2015. The plan proposes to sample area drinking water wells and a stockpile present at the site since 2002.

Eileen Olson

8/12/2015

Update or Other Action

On 8/12/2015 consultant Lyle Gresehover notified ADEC by email that he will be conducting the site visit/sampling event on Friday 8/14/15, with samples collected per the approved Corrective Action Work Plan and a Final Report to follow upon receipt of analytical results.

Eileen Olson

6/16/2016

Update or Other Action

ADEC contacted the responsible party and consultant by email to request the status of the report for work done according to the plan approved in ADEC's letter dated June 26, 2015.

Eileen Olson

10/25/2017

Update or Other Action

ADEC contacted the responsible party and consultant by email on this date to inquire whether work was done as proposed in the plan approved by ADEC's letter dated June 26, 2015 and whether a report is forthcoming. ADEC did not receive a response to the last inquiry on 6/16/2016.

Eileen Olson

11/14/2019

Update or Other Action

Chitina Electric Inc. was emailed an "Overdue Report Letter" via email. The RP & QEP were unavailable by phone. They were contacted by phone at their offices. Both the RP and the QEP were left messages.

Randy Guintu

Contaminant Information

Name

Level Description

Media

Comments

Control Type

Type

Details

Requirements

Description

Details

There are no documents for this site report.

No associated sites were found.

Missing Location Data

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Alaska Department of Environmental Conservation

Site Report: Chitina Power Plant

Site Chronology

IC / Closure Details

Documents

Associated Sites

Problems/Comments

Action Information

Contaminant Information

Control Type

Requirements

Missing Location Data

State of Alaska Department of Environmental Conservation