Site Report: NPS Katmai National Park Brooks Camp North

Site Name:	NPS Katmai National Park Brooks Camp North
Address:	Katmai National Park; ~33 Miles ESE of King Salmon; Naknek Lake, King Salmon, AK 99613
File Number:	2569.38.005
Hazard ID:	23298
Status:	Active
Staff:	Livia Bracker, 9072697695 livia.bracker@alaska.gov
Latitude:	58.556827
Longitude:	-155.779185
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

The area comprising National Park Service (NPS) Katmai National Park Brooks Camp North includes Brooks Lodge, guest cabins, a visitor’s center, a ranger station, employee housing, and various other facilities. Three former underground storage tanks (USTs) and the associated distribution piping were the main sources of the contamination at this site. While some piping still exists onsite, the USTs and the majority of the distribution piping were removed in 1993. An air-sparging system was installed and operated in the vicinity of the generator building in an attempt to remediate the piping leak, a day tank overflow, and underground storage tank (UST) releases. The use of the air-sparging system has since been discontinued. A network of monitoring wells were installed across the site to evaluate petroleum impacts to groundwater and migration potential to Naknek Lake.

Action Information

Action Date	Action	Description	DEC Staff
1/11/1991	Underground Storage Tank Site Characterization or Assessment	SA1R; Report was submitted to the central office and later was forwarded to SCRO. Site assessment indicates petroleum contaminated soil remains beneath the former 300 gallon diesel UST.	Former Staff
7/16/1991	Leaking Underground Storage Tank Release Confirmed - Petroleum	LUST Site created in CSP for source area ID 78037 ADD; Site data entered.	Former Staff
7/16/1991	Site Added to Database		Former Staff
2/26/1992	Update or Other Action	NOR; NOR letter requested submittal of plans and schedule for conducting a release investigation and corrective action.	Former Staff
10/8/1992	Update or Other Action	NOR; Notice of Release letter sent in response to a report that six (6) UST systems failed tightness tests at the facility.	Former Staff
10/10/1992	Update or Other Action	NOR; Bill Heubner of the Park Service called and reported that tank tightness testing of six (6) USTs at Brooks Camp indicated all of them were leaking. The current testing was associated with four (4) 2,000 diesel USTs and two (2) 8,000 gallon diesel USTs. Spill # 92250028292 was assigned to the recent spill report. A notice of release letter was previously sent on February 26, 1992 in response to a release from a 300 gallon diesel UST. The Park Service contracted with E & E to conduct site assessment work of the entire camp during the summer of 1992. The report summarizing the work is to be submitted within the next month.	Former Staff
8/3/1993	Site Visit	FI; Inspected removal and assessment of 7 regulated USTs; work being performed by Knik construction and E&E under contract to COE.	Former Staff
8/23/1993	Update or Other Action	CAPR; Reviewed corrective action plan to begin removal of 7 leaking tanks.	Former Staff
8/23/1993	Leaking Underground Storage Tank Cleanup Initiated - Petroleum	LCAU; COE, under contract to NPS, removed heavily contaminated soils from excavations where regulated USTs were located. Future actions depend on corrective action alternative chosen.	Former Staff
7/15/1994	Underground Storage Tank Site Characterization or Assessment	SA1R;	Former Staff
8/15/1995	Update or Other Action	CAPR;	Former Staff
8/15/1995	Release Investigation	RELR;	Former Staff
1/15/2003	Update or Other Action	No file could be located in the Kenai ADEC offcie as of 1/15/03. Kenai staff have no recollection of having worked this project.	Paul Horwath
7/27/2006	Update or Other Action	updated file number	Wendy Uzzell
5/15/2008	Exposure Tracking Model Ranking	Intitial Ranking Complete for Source Area: 78037 (Autogenerated Action)
3/22/2010	Update or Other Action	ADEC staff recieevd a copy of the Draft Work Plan for excavation of diesel contaminated soil along the beach at Brooks Camp. The spill occurred in 1992 or 1993 and has been investigated in the past. Impacted soil that remains above the groundwater table will be removed and treated or disposed of off site.	Jonathan Schick
3/22/2010	Update or Other Action	ADEC staff recieved a draft copy of the 2010 groundwater monitoring work plan for Brooks Camp North.	Jonathan Schick
3/24/2010	Update or Other Action	ADEC provided comments on the draft work plans for groundwater monitoring at the Brooks Camp North Site and for Excavation and soil sampling on the shore of Naknek Lake. The main concerns were adding more specific requirements into the plan and adhering to the latest field sampling guidance.	Jonathan Schick
4/5/2010	Update or Other Action	ADEC staff recieved a Final Version of the Work Plan for Brooks Camp North Groundwater Monitoring 2010 Katmai National Park and Preserve, Alaska. The comments from the draft version have been addressed and this plan is approved to be implemented in the field.	Jonathan Schick
10/1/2010	Update or Other Action	Contaminated Sites Staff recieved the Final version of the report for excavated soil remediation at brooks Camp North. The soil was excavated from the beach along the shores of the Naknek Lake and then spread on a liner on-site. This past summer the soils were saturated with Regenox and tilled twice a week to aid in the degradation of the Deisel contamination. THe subsequent Multi-Incremental sampling of the stockpiles returned sample results indicating that the soil has acheived the cleanup level of 250 mg/kg for this site.	Jonathan Schick
10/22/2010	Update or Other Action	ADEC Contaminated Sites Staff recieved a draft version fo the 2010 Groundwater Monitoring Work Report for Brooks Camp North in Katmai National Park and Preserve.The report details the site activities which included measuring of the groundwater levels in all of the available wells in the area, installing two additional well points at the site to better assess the DRO concentrations as well as BTEX. Samples were collected from 4 monitoring points at the site and the samples were sent to the laboratory for anlysis.	Jonathan Schick
11/2/2010	Update or Other Action	Contamiated Sites Staff submitted a letter to the National Parks Service regarding the recently submitted Final report from the Brooks Camp North Stockpile Sampling event. The letter stated that the State concurs with the amendments to the document and approves the Final version. The soil was excavated from the beach along the shores of the Naknek Lake and then spread on a liner on-site. This past summer the soils were saturated with Regenox and tilled twice a week to aid in the degradation of the Deisel contamination. THe subsequent Multi-Incremental sampling of the stockpiles returned sample results indicating that the soil has acheived the cleanup level of 250 mg/kg for this site.	Jonathan Schick
11/10/2010	Update or Other Action	Contaminated Sites Staff recieved a Draft version of the Report for Brooks Camp Parking Lot Well Installation and Sampling in Katmai National Park and Preserve, Alaska. The report details the results of soil and groundwater sampling from the installation of a new replacement monitoring well for WP-2 which had not been located during previous site visits.2 additional monitoring wells were also sampled during this site work.	Jonathan Schick
12/8/2010	Update or Other Action	Contaminated Sites Staff sent a letter to the National Park Service with comments on the Draft Report detailing well installation and groundwater monitoring of the groundwater impacts from the removed leaking gasoline UST that was in the area of the parking lot. THe results show that the DRO, GRO and Benzene concentrations remain at high levels above the cleanup levels and have not attenuated since the monitoring began. The wells downgradient do not show any signs of impacts migrating at this site, but additional monitoring is recommended. The comments on the report were largely editorial in nature.	Jonathan Schick
7/13/2012	Update or Other Action	Site transferred from Schick to Debenham.	Rebecca Bryan
7/24/2013	Site Characterization Workplan Approved	Approved the final work plan for groundwater monitoring at the Brooks Camp North site. Groundwater samples will be collected from 4 monitoring wells and analyzed for diesel range organics.	Melody Debenham
4/7/2014	Document, Report, or Work plan Review - other	Approved final 2013 Brooks Camp North groundwater sampling report. Groundwater samples were collected from MW-13, WP-21A, WP-22A, and WP-23 and analyzed for diesel range organics. Results were above the cleanup level in MW-13 and WP-22A.	Melody Debenham
8/21/2014	Site Visit	Site visit to Brooks Camp sites.	Melody Debenham
9/30/2014	Potentially Responsible Party/State Interest Letter	Potentially responsible party letter sent to the National Park Service.	Melody Debenham
9/15/2015	Document, Report, or Work plan Review - other	Approved final 2015 work plan for Katmai Petroleum Sites including Brooks Camp North, Brooks Camp Parking Lot, Brooks Lake, and Nonvianuk Ranger Cabin. Work at Brooks Camp North includes installing 2 monitoring wells and collecting pore water and groundwater samples. Work at Brooks Camp Parking Lot includes collecting groundwater samples. Work at Brooks Lake includes collecting soil, groundwater, and pore water samples.	Melody Debenham
1/5/2016	Exposure Tracking Model Ranking	Initial ranking with ETM completed for source area id: 79848 name: Brooks Camp North	Melody Debenham
1/11/2016	Document, Report, or Work plan Review - other	Brooks Camp North - Approved final Report for Brooks Camp North 2015, Additional Site Assessment and Monitoring. Field work included installing two monitoring wells, collecting groundwater samples, collecting pore water samples, and doing shovel sheen tests. Groundwater results show diesel range organics are above the cleanup level. Pore water sample results were all non-detect, and no sheen was observed in the shovel sheen tests.	Melody Debenham
8/16/2017	Document, Report, or Work plan Review - other	Brooks Camp North - DEC Approval - Brooks Lake Soil Remediation and Groundwater Sampling Work Plan and Water Sampling 2017 Work Plan, Brooks Camp North.	Gretchen Caudill
1/12/2018	Document, Report, or Work plan Review - other	Brooks Camp North - DEC Approval – 2017 Report for Water Sampling, Brooks Camp North. This report details groundwater sampling downgradient of the generator building for DRO, BTEX, and PAHs and pore water sampling at the shoreline of Nanek Lake for TAH and TAqH. DRO was detected above cleanup levels in WP-24 and naphthalene was detected above cleanup levels in MW-13. TAH and TAqH were below cleanup levels in pore water. DEC concurs with the conclusions and recommendations to continue groundwater sampling for DRO, PAHs, and volatile organic compounds.	Gretchen Caudill
6/15/2018	Document, Report, or Work plan Review - other	Brooks Camp North - DEC Approval – 2018 Groundwater Sampling Work Plan. This work plan outlines the continued groundwater sampling at MW-3R, MW-13, WP-23, and WP-24 for DRO, fuel-related VOCs, and PAHs. Exceedances of cleanup levels in 2017 were reported in WP-24 (DRO) and MW-12 (naphthalene). Soil ingestion and direct contact pathways will need to be quantitatively evaluated for the west generator building source area prior to a cleanup complete determination for this site.	Gretchen Caudill
6/28/2018	Document, Report, or Work plan Review - other	DEC comments provided - Draft WP for MW Decommissioning. The objectives of the WP are to decommission up to 25 monitoring wells and other subsurface emplacements to reduce potential conduits to groundwater.	Gretchen Caudill
7/11/2018	Document, Report, or Work plan Review - other	DEC Approval – Final Work Plan Brooks Camp North, Brooks Camp Parking Lot, and Brooks Lake Well Decommissioning	Gretchen Caudill
10/30/2018	Document, Report, or Work plan Review - other	DEC Approval – 2018 Well Decommissioning Report at Brooks Camp North, Barge Landing Area, Brooks Camp Parking Lot, and Brooks Lake. This report details the decommissioning of twenty-two monitoring wells, well points, bioventing wells, and air sparing points at three site in the Brooks Camp area. Monitoring well-2, -24, -25, and -26 were unable to be located.	Gretchen Caudill
11/20/2018	Document, Report, or Work plan Review - other	Brooks Camp N - DEC Approval - 2018 Report for Groundwater Sampling. DRO and naphthalene were the only two contaminants detected above cleanup levels at a concentration of 1600 µg/L and 2.6 µg/L, respectively. DEC concurs with the recommendation to prepare a Record of Decision prescribing groundwater monitoring on a three year basis, however additional factors, to the two consecutive monitoring events below cleanup levels, will have to be considered when making a cleanup complete determination.	Gretchen Caudill
6/4/2019	Document, Report, or Work plan Review - other	Brooks Camp North - DEC approved 2019 GW Monitoring WP for the area east of the generator release site. Reporting will be in the form of a brief letter for this effort as a ROD will be developed in 2019 for this site.	Gretchen Caudill
7/23/2019	Update or Other Action	Parking Lot, Brooks Lake, and Brooks Camp N sites have been split out into different Haz IDs.	Gretchen Caudill
10/30/2019	Document, Report, or Work plan Review - other	CS staff received a Draft Report for Brooks Camp North Groundwater Sampling 2019, dated September 12. None of the wells sampled had compounds detected above cleanup levels, however, MW-13 showed DRO at the cleanup level. Comments concerned clarification of site characterization and possible surface water contaminants.	Tim Sharp
11/4/2019	Document, Report, or Work plan Review - other	DEC approved 2019 Groundwater sampling survey report. Report was in the form of a brief letter for this effort as a DD is being developed this year for this site. DD to be released in late fall/early winter.	Tim Sharp
1/7/2020	Meeting or Teleconference Held	DEC met with NPS and Ahtna contractor to discuss site history and future plans for the site	Tim Sharp
12/1/2020	Update or Other Action	NPS discussed the difficulties of attaining a NAUL for the site, and so was interested on moving forward to attempt to close the site without ICs in the future. Potential areas of soil contamination above HH levels exist near the incinerator building and along the former pipeline at the site. DEC recommended further soil sampling to characterize the releases and determine if any HH exceedances remain. Further remedial action will likely be required depending on the site investigation.	Tim Sharp
3/25/2021	Document, Report, or Work plan Review - other	DEC commented on the Draft 2021 Groundwater Sampling Work Plan. NPS will sample groundwater from four monitoring wells to assess current VOCs, PAHs and DRO concentrations at the site. It is DEC's understanding that the NPS has not determined how to move forward with the Decision Document at this time.	Tim Sharp
4/30/2021	Document, Report, or Work plan Review - other	On this date, DEC Approved the Final 2021 Groundwater Monitoring Work Plan.	Tim Sharp
12/1/2021	Document, Report, or Work plan Review - other	DEC reviewed the 2021 Draft Groundwater Monitoring Report, which details continued groundwater monitoring at the Brooks Camp North site for DRO, PAHs, and VOCs. Four monitoring wells were sampled and compared to Table C. One exceedance of naphthalene in a duplicate sample was detected, DEC recommends the wells be sampled again in 2023 for the same COCs to ascertain if all analytes fall below cleanup levels.	Tim Sharp
12/13/2021	Site Characterization Report Approved	ADEC approved the Final Groundwater Monitoring Report. NPS plans on returning in 2023, and recommends decommissioning wells provided results show contaminant levels falling below Table C.	Tim Sharp
8/17/2022	Meeting or Teleconference Held	ADEC met with NPS and representatives from Ahtna to discuss multiple site histories and potential paths forward for remediation and eventual closure with or without ICs.	Tim Sharp
2/24/2023	Meeting or Teleconference Held	ADEC met with NPS and representatives from Ahtna to discuss multiple site histories and potential paths forward for remediation and eventual closure with or without ICs.	Arika Garcia

Action Date

Action

Description

DEC Staff

1/11/1991

Underground Storage Tank Site Characterization or Assessment

SA1R; Report was submitted to the central office and later was forwarded to SCRO. Site assessment indicates petroleum contaminated soil remains beneath the former 300 gallon diesel UST.

Former Staff

7/16/1991

Leaking Underground Storage Tank Release Confirmed - Petroleum

LUST Site created in CSP for source area ID 78037 ADD; Site data entered.

Former Staff

7/16/1991

Site Added to Database

Former Staff

2/26/1992

Update or Other Action

NOR; NOR letter requested submittal of plans and schedule for conducting a release investigation and corrective action.

Former Staff

10/8/1992

Update or Other Action

NOR; Notice of Release letter sent in response to a report that six (6) UST systems failed tightness tests at the facility.

Former Staff

10/10/1992

Update or Other Action

NOR; Bill Heubner of the Park Service called and reported that tank tightness testing of six (6) USTs at Brooks Camp indicated all of them were leaking. The current testing was associated with four (4) 2,000 diesel USTs and two (2) 8,000 gallon diesel USTs. Spill # 92250028292 was assigned to the recent spill report. A notice of release letter was previously sent on February 26, 1992 in response to a release from a 300 gallon diesel UST. The Park Service contracted with E & E to conduct site assessment work of the entire camp during the summer of 1992. The report summarizing the work is to be submitted within the next month.

Former Staff

8/3/1993

Site Visit

FI; Inspected removal and assessment of 7 regulated USTs; work being performed by Knik construction and E&E under contract to COE.

Former Staff

8/23/1993

Update or Other Action

CAPR; Reviewed corrective action plan to begin removal of 7 leaking tanks.

Former Staff

8/23/1993

Leaking Underground Storage Tank Cleanup Initiated - Petroleum

LCAU; COE, under contract to NPS, removed heavily contaminated soils from excavations where regulated USTs were located. Future actions depend on corrective action alternative chosen.

Former Staff

7/15/1994

Underground Storage Tank Site Characterization or Assessment

SA1R;

Former Staff

8/15/1995

Update or Other Action

CAPR;

Former Staff

8/15/1995

Release Investigation

RELR;

Former Staff

1/15/2003

Update or Other Action

No file could be located in the Kenai ADEC offcie as of 1/15/03. Kenai staff have no recollection of having worked this project.

Paul Horwath

7/27/2006

Update or Other Action

updated file number

Wendy Uzzell

5/15/2008

Exposure Tracking Model Ranking

Intitial Ranking Complete for Source Area: 78037 (Autogenerated Action)

3/22/2010

Update or Other Action

ADEC staff recieevd a copy of the Draft Work Plan for excavation of diesel contaminated soil along the beach at Brooks Camp. The spill occurred in 1992 or 1993 and has been investigated in the past. Impacted soil that remains above the groundwater table will be removed and treated or disposed of off site.

Jonathan Schick

3/22/2010

Update or Other Action

ADEC staff recieved a draft copy of the 2010 groundwater monitoring work plan for Brooks Camp North.

Jonathan Schick

3/24/2010

Update or Other Action

ADEC provided comments on the draft work plans for groundwater monitoring at the Brooks Camp North Site and for Excavation and soil sampling on the shore of Naknek Lake. The main concerns were adding more specific requirements into the plan and adhering to the latest field sampling guidance.

Jonathan Schick

4/5/2010

Update or Other Action

ADEC staff recieved a Final Version of the Work Plan for Brooks Camp North Groundwater Monitoring 2010 Katmai National Park and Preserve, Alaska. The comments from the draft version have been addressed and this plan is approved to be implemented in the field.

Jonathan Schick

10/1/2010

Update or Other Action

Contaminated Sites Staff recieved the Final version of the report for excavated soil remediation at brooks Camp North. The soil was excavated from the beach along the shores of the Naknek Lake and then spread on a liner on-site. This past summer the soils were saturated with Regenox and tilled twice a week to aid in the degradation of the Deisel contamination. THe subsequent Multi-Incremental sampling of the stockpiles returned sample results indicating that the soil has acheived the cleanup level of 250 mg/kg for this site.

Jonathan Schick

10/22/2010

Update or Other Action

ADEC Contaminated Sites Staff recieved a draft version fo the 2010 Groundwater Monitoring Work Report for Brooks Camp North in Katmai National Park and Preserve.The report details the site activities which included measuring of the groundwater levels in all of the available wells in the area, installing two additional well points at the site to better assess the DRO concentrations as well as BTEX. Samples were collected from 4 monitoring points at the site and the samples were sent to the laboratory for anlysis.

Jonathan Schick

11/2/2010

Update or Other Action

Contamiated Sites Staff submitted a letter to the National Parks Service regarding the recently submitted Final report from the Brooks Camp North Stockpile Sampling event. The letter stated that the State concurs with the amendments to the document and approves the Final version. The soil was excavated from the beach along the shores of the Naknek Lake and then spread on a liner on-site. This past summer the soils were saturated with Regenox and tilled twice a week to aid in the degradation of the Deisel contamination. THe subsequent Multi-Incremental sampling of the stockpiles returned sample results indicating that the soil has acheived the cleanup level of 250 mg/kg for this site.

Jonathan Schick

11/10/2010

Update or Other Action

Contaminated Sites Staff recieved a Draft version of the Report for Brooks Camp Parking Lot Well Installation and Sampling in Katmai National Park and Preserve, Alaska. The report details the results of soil and groundwater sampling from the installation of a new replacement monitoring well for WP-2 which had not been located during previous site visits.2 additional monitoring wells were also sampled during this site work.

Jonathan Schick

12/8/2010

Update or Other Action

Contaminated Sites Staff sent a letter to the National Park Service with comments on the Draft Report detailing well installation and groundwater monitoring of the groundwater impacts from the removed leaking gasoline UST that was in the area of the parking lot. THe results show that the DRO, GRO and Benzene concentrations remain at high levels above the cleanup levels and have not attenuated since the monitoring began. The wells downgradient do not show any signs of impacts migrating at this site, but additional monitoring is recommended. The comments on the report were largely editorial in nature.

Jonathan Schick

7/13/2012

Update or Other Action

Site transferred from Schick to Debenham.

Rebecca Bryan

7/24/2013

Site Characterization Workplan Approved

Approved the final work plan for groundwater monitoring at the Brooks Camp North site. Groundwater samples will be collected from 4 monitoring wells and analyzed for diesel range organics.

Melody Debenham

4/7/2014

Document, Report, or Work plan Review - other

Approved final 2013 Brooks Camp North groundwater sampling report. Groundwater samples were collected from MW-13, WP-21A, WP-22A, and WP-23 and analyzed for diesel range organics. Results were above the cleanup level in MW-13 and WP-22A.

Melody Debenham

8/21/2014

Site Visit

Site visit to Brooks Camp sites.

Melody Debenham

9/30/2014

Potentially Responsible Party/State Interest Letter

Potentially responsible party letter sent to the National Park Service.

Melody Debenham

9/15/2015

Document, Report, or Work plan Review - other

Approved final 2015 work plan for Katmai Petroleum Sites including Brooks Camp North, Brooks Camp Parking Lot, Brooks Lake, and Nonvianuk Ranger Cabin. Work at Brooks Camp North includes installing 2 monitoring wells and collecting pore water and groundwater samples. Work at Brooks Camp Parking Lot includes collecting groundwater samples. Work at Brooks Lake includes collecting soil, groundwater, and pore water samples.

Melody Debenham

1/5/2016

Exposure Tracking Model Ranking

Initial ranking with ETM completed for source area id: 79848 name: Brooks Camp North

Melody Debenham

1/11/2016

Document, Report, or Work plan Review - other

Brooks Camp North - Approved final Report for Brooks Camp North 2015, Additional Site Assessment and Monitoring. Field work included installing two monitoring wells, collecting groundwater samples, collecting pore water samples, and doing shovel sheen tests. Groundwater results show diesel range organics are above the cleanup level. Pore water sample results were all non-detect, and no sheen was observed in the shovel sheen tests.

Melody Debenham

8/16/2017

Document, Report, or Work plan Review - other

Brooks Camp North - DEC Approval - Brooks Lake Soil Remediation and Groundwater Sampling Work Plan and Water Sampling 2017 Work Plan, Brooks Camp North.

Gretchen Caudill

1/12/2018

Document, Report, or Work plan Review - other

Brooks Camp North - DEC Approval – 2017 Report for Water Sampling, Brooks Camp North. This report details groundwater sampling downgradient of the generator building for DRO, BTEX, and PAHs and pore water sampling at the shoreline of Nanek Lake for TAH and TAqH. DRO was detected above cleanup levels in WP-24 and naphthalene was detected above cleanup levels in MW-13. TAH and TAqH were below cleanup levels in pore water. DEC concurs with the conclusions and recommendations to continue groundwater sampling for DRO, PAHs, and volatile organic compounds.

Gretchen Caudill

6/15/2018

Document, Report, or Work plan Review - other

Brooks Camp North - DEC Approval – 2018 Groundwater Sampling Work Plan. This work plan outlines the continued groundwater sampling at MW-3R, MW-13, WP-23, and WP-24 for DRO, fuel-related VOCs, and PAHs. Exceedances of cleanup levels in 2017 were reported in WP-24 (DRO) and MW-12 (naphthalene). Soil ingestion and direct contact pathways will need to be quantitatively evaluated for the west generator building source area prior to a cleanup complete determination for this site.

Gretchen Caudill

6/28/2018

Document, Report, or Work plan Review - other

DEC comments provided - Draft WP for MW Decommissioning. The objectives of the WP are to decommission up to 25 monitoring wells and other subsurface emplacements to reduce potential conduits to groundwater.

Gretchen Caudill

7/11/2018

Document, Report, or Work plan Review - other

DEC Approval – Final Work Plan Brooks Camp North, Brooks Camp Parking Lot, and Brooks Lake Well Decommissioning

Gretchen Caudill

10/30/2018

Document, Report, or Work plan Review - other

DEC Approval – 2018 Well Decommissioning Report at Brooks Camp North, Barge Landing Area, Brooks Camp Parking Lot, and Brooks Lake. This report details the decommissioning of twenty-two monitoring wells, well points, bioventing wells, and air sparing points at three site in the Brooks Camp area. Monitoring well-2, -24, -25, and -26 were unable to be located.

Gretchen Caudill

11/20/2018

Document, Report, or Work plan Review - other

Brooks Camp N - DEC Approval - 2018 Report for Groundwater Sampling. DRO and naphthalene were the only two contaminants detected above cleanup levels at a concentration of 1600 µg/L and 2.6 µg/L, respectively. DEC concurs with the recommendation to prepare a Record of Decision prescribing groundwater monitoring on a three year basis, however additional factors, to the two consecutive monitoring events below cleanup levels, will have to be considered when making a cleanup complete determination.

Gretchen Caudill

6/4/2019

Document, Report, or Work plan Review - other

Brooks Camp North - DEC approved 2019 GW Monitoring WP for the area east of the generator release site. Reporting will be in the form of a brief letter for this effort as a ROD will be developed in 2019 for this site.

Gretchen Caudill

7/23/2019

Update or Other Action

Parking Lot, Brooks Lake, and Brooks Camp N sites have been split out into different Haz IDs.

Gretchen Caudill

10/30/2019

Document, Report, or Work plan Review - other

CS staff received a Draft Report for Brooks Camp North Groundwater Sampling 2019, dated September 12. None of the wells sampled had compounds detected above cleanup levels, however, MW-13 showed DRO at the cleanup level. Comments concerned clarification of site characterization and possible surface water contaminants.

Tim Sharp

11/4/2019

Document, Report, or Work plan Review - other

DEC approved 2019 Groundwater sampling survey report. Report was in the form of a brief letter for this effort as a DD is being developed this year for this site. DD to be released in late fall/early winter.

Tim Sharp

1/7/2020

Meeting or Teleconference Held

DEC met with NPS and Ahtna contractor to discuss site history and future plans for the site

Tim Sharp

12/1/2020

Update or Other Action

NPS discussed the difficulties of attaining a NAUL for the site, and so was interested on moving forward to attempt to close the site without ICs in the future. Potential areas of soil contamination above HH levels exist near the incinerator building and along the former pipeline at the site. DEC recommended further soil sampling to characterize the releases and determine if any HH exceedances remain. Further remedial action will likely be required depending on the site investigation.

Tim Sharp

3/25/2021

Document, Report, or Work plan Review - other

DEC commented on the Draft 2021 Groundwater Sampling Work Plan. NPS will sample groundwater from four monitoring wells to assess current VOCs, PAHs and DRO concentrations at the site. It is DEC's understanding that the NPS has not determined how to move forward with the Decision Document at this time.

Tim Sharp

4/30/2021

Document, Report, or Work plan Review - other

On this date, DEC Approved the Final 2021 Groundwater Monitoring Work Plan.

Tim Sharp

12/1/2021

Document, Report, or Work plan Review - other

DEC reviewed the 2021 Draft Groundwater Monitoring Report, which details continued groundwater monitoring at the Brooks Camp North site for DRO, PAHs, and VOCs. Four monitoring wells were sampled and compared to Table C. One exceedance of naphthalene in a duplicate sample was detected, DEC recommends the wells be sampled again in 2023 for the same COCs to ascertain if all analytes fall below cleanup levels.

Tim Sharp

12/13/2021

Site Characterization Report Approved

ADEC approved the Final Groundwater Monitoring Report. NPS plans on returning in 2023, and recommends decommissioning wells provided results show contaminant levels falling below Table C.

Tim Sharp

8/17/2022

Meeting or Teleconference Held

ADEC met with NPS and representatives from Ahtna to discuss multiple site histories and potential paths forward for remediation and eventual closure with or without ICs.

Tim Sharp

2/24/2023

Meeting or Teleconference Held

ADEC met with NPS and representatives from Ahtna to discuss multiple site histories and potential paths forward for remediation and eventual closure with or without ICs.

Arika Garcia

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: NPS Katmai National Park Brooks Camp North

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