| Action Date |
Action |
Description |
DEC Staff |
| 1/31/1992 |
Site Added to Database |
|
Former Staff |
| 9/8/1992 |
Update or Other Action |
(Old R:Base Action Code = RPL2 - Site Information Request Letter). Sent PRP-CS Database Notification Letter requesting update and more environmental information concerning contaminated site. RP responded. |
Jeff Peterson |
| 3/16/1993 |
Meeting or Teleconference Held |
Pre-construction conference at Corps of Engineers Fairbanks Resident Engineer Office. |
Bob Couch |
| 3/1/1994 |
Update or Other Action |
(Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). Work Plan and Quality Control Plan were submitted 3/1/94, and on 3/7/94 learned that the Corps had returned both plans to the Contractor for revision. |
Bob Couch |
| 4/1/1994 |
Update or Other Action |
(Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). Received Contractor's revised Work Plan and Quality Control Plan. |
Bob Couch |
| 8/16/1994 |
Site Ranked Using the AHRM |
Initial ranking. |
Former Staff |
| 9/15/1994 |
Update or Other Action |
(Old R:Base Action Code = F - Site Treatment, Soil/H2O). Approval letter for the use of General Permit 9440-DB006 for the treatment and discharge of wastewater at the site. |
Bill Smyth |
| 1/18/1996 |
Meeting or Teleconference Held |
ADEC staff, Tamar Stephens and Clint Adler, met with USACE representatives, James Baker, Robert Haviland, Gus Olson, John Jacobson, Curtis King, Ron Pflum, and IT representative Keith Walker, for update on status of Nome sites. Large tank on site: 100'diameter, 18' high. Contaminated soil around tank, but no evidence of leaking from tank. Corings of tank floor show no petroleum on concrete pad underneath tank. This site also has 4-celled landfarming operation treating soils from various sites. |
Tamar Stephens |
| 3/14/1996 |
Update or Other Action |
(Old R:Base Action Code = RA - Remedial Action). Received "DRAFT Remedial Action Report", Addendum, 1995 Work Season. |
Tamar Stephens |
| 6/7/1996 |
Update or Other Action |
Supporting Documentation, Cape Nome Site/West Cape Nome Extension, Addendum 1, 1995 Work Season, Nome Area Sites Project, Seward Peninsula, Alaska, Contract Number DACW41-89-D0133, Delivery Order Number 15, received 7/30/1996. |
Tamar Stephens |
| 6/7/1996 |
Update or Other Action |
(Old R:Base Action Code = RA - Remedial Action). Remedial Action Report, Cape Nome Site/West Cape Nome Extension, Addendum 1, 1995 Work Season, Nome Area Sites Project, Seward Peninsula, Alaska, Contract Number DACW41-89-D0133, Delivery Order Number 15, received 7/30/1996. |
Tamar Stephens |
| 8/26/1996 |
Update or Other Action |
ADEC staff Stephens and Himmelbauer met with James Baker of COE to scope out closure procedures and risk assessment needs for Nome area FUDS project sites. |
Tamar Stephens |
| 8/27/1996 |
Update or Other Action |
Supporting Documentation, Tank Site E, Part I, Analytical Data, and Part II, Supplemental Documentation, Nome Area Sites Project, Seward Peninsula, Alaska, Contract Number DACW41-89-D0133, Delivery Number 15, received 8/27/1996. |
Tamar Stephens |
| 8/27/1996 |
Update or Other Action |
(Old R:Base Action Code = RA - Remedial Action). Remedial Action Report, Tank E Site, Nome Area Sites Project, Seward Peninsula, Alaska, Contract Number DACW41-89-D0133, Delivery Number 15, received 8/27/1996. |
Tamar Stephens |
| 11/22/1999 |
Update or Other Action |
Current status: Have received and commented on draft closeout report. Briefed section manager. Contamination still present in soil under tank, and possible in groundwater. Need additional water sampling, then can probably place in No Further Remedial Action Required status. |
Tamar Stephens |
| 3/6/2001 |
Update or Other Action |
File number updated from 400.38.001 to 400.38.001L. |
Mitzi Read |
| 12/8/2003 |
GIS Position Updated |
Corrected position using site map from file. Site map was small-scale making the actual position difficult to pin-point. |
Torsten Ernst |
| 3/14/2008 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed. |
Tamar Stephens |
| 3/20/2008 |
Document, Report, or Work plan Review - other |
Reviewed and approved Chemical Data Report - 2009 Sampling, Nome Tank Site "E." The Chemical Data Report describes installation and sampling of groundwater monitoring wells at Tank Site “E” to assess potential groundwater contamination. Three older monitoring wells were found, two of which were damaged and unusable. Three new monitoring wells were installed, one of which failed to recharge adequately for sampling. Groundwater samples were collected from the remaining older well, MW-2, and from two of the new wells, MW-E1 and MW-E2. Samples were analyzed for diesel range organics (DRO), residual range organics (RRO), benzene, toluene, ethylbenzene and zylenes (BTEX) and for polycyclic aromatic hydrocarbons (PAHs). The report concludes that groundwater at Tank Site “E” has been impacted by fuel contamination. ADEC concurs with this conclusion. Groundwater sampling was not intended to characterize the extent or boundaries of the plume, merely to identify whether fuel contamination was present in the groundwater. ADEC recommends a more complete evaluation to determine the extent of the plume should be planned for the future. |
Tamar Stephens |
| 6/12/2008 |
Document, Report, or Work plan Review - other |
Reviewed report titled Site Investigation Report, Tank Site E - Rapid Optical Screening Tool (ROST)(May 28, 2008). This report presents data and figures to show where soil contamination is present at the Nome Tank Site E. Data was collected during summer of 2007 using the ROST, which sends ultra-violet light through optical fibers strung through direct-push drill rods. Laser-induced fluorescence (LIF) indicates the presence of hydrocarbons in the soil. The data can be interpreted to identify relative concentrations of hydrocarbons and their approximate hydrocarbon ranges (e.g., diesel range). The results show that the plume of petroleum hydrocarbons in soil is predominantly diesel range, extends approximately 1200 feet to the south-southwest of the tank, and covers approximately 12 to 15 acres |
Tamar Stephens |
| 7/21/2008 |
Document, Report, or Work plan Review - other |
Reviewed and sent comments on draft work plan titled Site Investigation Work Plan Nome Area Defense Region (Tank Site E), July 2008. ADEC received this report on July 16, 2008. This work plan describes the installation of seven additional groundwater monitoring wells to assess the contaminant plume, sampling of these and of four pre-existing wells, and collection of soil samples at the Tank Site “E” location. |
Tamar Stephens |
| 8/26/2008 |
Document, Report, or Work plan Review - other |
Approved Site Investigation Work Plan Nome Area Defense Region (Tank Site E), July 2008. The work plan describes the installation of seven additional groundwater monitoring wells to assess the contaminant plume, sampling of these and of four pre-existing wells, and collection of soil samples at the Tank Site “E” location near Nome, Alaska. Field operations are scheduled to take place from August 21–30, 2008. |
Tamar Stephens |
| 12/3/2008 |
Document, Report, or Work plan Review - other |
Reviewed and sent comments on draft 2008 Chemical Data Report. DEC received this report on November 6, 2008. This report describes installation of seven new monitoring wells and sampling of these wells and four previously-existing wells at the Nome Area Defense Region Tank Site “E”. Field work was performed from August 21-31, 2008. |
Tamar Stephens |
| 8/4/2009 |
Document, Report, or Work plan Review - other |
Reviewed and approved draft Groundwater Sampling Work Plan for the Nome Area Defense Region Tank Site “E”. DEC received this report on July 24, 2009. This work plan describes sampling and analysis that will be performed to monitor the nature and extent of fuel contamination in the groundwater associated with Tank Site “E” and to evaluate for evidence of natural attenuation. Field work is scheduled for August 10-14, 2009. Groundwater samples will be collected from 11 monitoring wells previously installed at Tank Site “E”. Samples will be analyzed for diesel range organics; residual range organics; benzene, toluene, ethylbenzene, and xylenes; and polynuclear aromatic hydrocarbons to assess for fuel components. Samples will be analyzed for nitrates, sulfate, iron and manganese for evaluating natural attenuation. Field measurements will be taken for water levels, flow rates, redox potential, dissolved oxygen, pH, specific conductivity, temperature, and turbidity.
|
Tamar Stephens |
| 11/19/2009 |
Document, Report, or Work plan Review - other |
Approved final Groundwater Sampling Work Plan, Nome Area Defense Regions (Tank Site “E”) (August, 2009). DEC previously reviewed and approved this work plan at the draft stage in a letter dated August 4, 2009. but requested corrections to figures. This work plan provides those corrections. Field work was performed during August 10-14, 2009. |
Tamar Stephens |
| 1/14/2010 |
Document, Report, or Work plan Review - other |
Approved final 2008 Chemical Data Report for the Nome Area Defense Region Tank Site “E”. This report shows that a plume of groundwater contamination extends to the southeast of the fuel tank. Data show that diesel range organics are present in five of the wells, and residual range organics in two of those five wells, at concentrations that exceed the groundwater cleanup levels found in 18 AAC 75.345 Table C. Benzene, toluene, ethylbenzene and xylenes (BTEX), and polycyclic aromatic hydrocarbons (PAH’s) were detected in most wells, but were at concentrations below the Table C cleanup levels. Data also show that geochemical indicators of natural attenuation are present in the groundwater. DEC concurs with the recommendations in this report to continue annual groundwater monitoring to collect sufficient data to determine whether the plum is stable or shrinking. DEC concurs with the recommendation to discontinue monitoring for BTEX and PAH’s.
|
Tamar Stephens |
| 1/14/2010 |
Document, Report, or Work plan Review - other |
Reviewed and sent comments on Draft 2009 Chemical Data Report. |
Tamar Stephens |
| 8/24/2010 |
Document, Report, or Work plan Review - other |
final Groundwater Sampling Work Plan, Nome Area Defense Region (Tank Site “E”). The work plan describes planned sampling of groundwater at 11 existing monitoring wells in the vicinity of Tank Site “E” with the field work scheduled for August 22 – 25, 2010. The work plan describes plans to assess the nature and extent of fuel contamination and to evaluate natural attenuation from a plume of petroleum contaminated groundwater from past leaks and spills. Samples will be collected from the 11 existing monitoring wells and submitted to an analytical laboratory to be analyzed for diesel range organics, residual range organics, polynuclear aromatic hydrocarbons, and benzene, toluene, ethylbenzene, and xylenes. Field data will be collected at each monitoring well for the static water level, total depths and present of floating product, pH, specific conductivity, dissolved oxygen, redox potential, and temperature. |
Tamar Stephens |
| 1/3/2011 |
Document, Report, or Work plan Review - other |
Approved final 2009 Chemical Data Report. This report describes the collection and analysis of groundwater samples from 11 monitoring wells to assess the groundwater contaminant plume associated with Tank Site “E” in the Nome Area Defense Region. Diesel range organics were detected in five of the monitoring wells at concentrations that exceed the cleanup level for groundwater, as per 18 AAC 75.345, Table C. Residual range organics were detected above the cleanup level in three of those wells. Two polynuclear aromatic hydrocarbon compounds, 1-methylnaphthalene and 2-methylnaphthalene, were detected above their respective cleanup levels. |
Tamar Stephens |
| 1/3/2011 |
Document, Report, or Work plan Review - other |
Reviewed and sent comments on Draft 2010 Chemical Data Report. |
Tamar Stephens |
| 3/8/2011 |
Update or Other Action |
Approved request for waiver of requirement that groundwater sampling be conducted or supervised by a qualified, impartial third party. Approved three U.S. ARmy Engineer District staff to conduct sampling during April and May, 2011. |
Tamar Stephens |
| 3/31/2011 |
Document, Report, or Work plan Review - other |
Approved final Groundwater Sampling Work Plan - Nome Area Defense Region Tank Site “E” Formerly Used Defense Site. The monitoring described in this work plan is scheduled to be performed during early April, 2011. Monitoring activities conducted during August 21-25, 2010, found fuel product and no groundwater in MW2008-1, one of the eleven monitoring wells at this site. The work plan includes a well bail-down test at MW2008-1 to assess the amount of recoverable free product at the site. |
Tamar Stephens |
| 4/24/2011 |
Document, Report, or Work plan Review - other |
Reviewed the Spring 2011 Groundwater Sampling Draft Chemical Data Report for the Nome Area Defense Region Tank Site “E” Formerly Used Defense Site. DEC received this report on August 22, 2011. Eleven groundwater monitoring wells are present at this site. Samples were collected and analyzed for diesel range organics (DRO); residual range organics (RRO); benzene, toluene, ethylbenzene, and xylenes (BTEX); and polynuclear aromatic hydrocarbons (PAHs). Results: Six of the wells were not sampled: five were dry and one was not located due to snow cover. No compounds were detected in four wells: MW2008-4, MW2008-5, MW2008-6, and MW2008-7. DRO was detected at 3.12 mg/L in MW2008-2, which exceeds the groundwater cleanup level of 1.5 mg/L. BTEX compounds were detected below the groundwater cleanup levels. MW-2008-1 was reported to contain almost five feet of free phase product and no water during August, 2010 sampling. This well was dry during the April 2011 sampling; thus a planned drawdown test to assess product recoverability could not be performed.
|
Tamar Stephens |
| 6/14/2011 |
Document, Report, or Work plan Review - other |
Approved Final 2010 Chemical Data Report, Nome Area Defense Region (Tank Site “E”) Formerly Used Defense Site, Nome Alaska (February 2011). The report describes sampling activities conducted at the Nome Tank Site “E” during August 21-25, 2010 and removal of a small volume of contaminated soil that was generated during installation of two monitoring wells and stored on site in 2008. The purpose of this monitoring event was to monitor groundwater contaminant concentrations to assess the nature and extent of fuel contamination and to evaluate the natural attenuation potential of remaining site contaminants. According to this report, eight of the 11 monitoring wells were sampled. Two monitoring wells, MW-E2 and MW-E3, were reported as dry or as containing too little water for sampling and one well, MW-2008-1, was reported to contain almost five feet of free phase product and no water. Results showed that three of the other monitoring wells contained concentrations of diesel range organics (DRO) and two contained residual range organics (RRO) in excess of the respective cleanup levels.
|
Tamar Stephens |
| 8/30/2011 |
Document, Report, or Work plan Review - other |
Reviewed and approved the Draft Groundwater Sampling Work Plan, Nome Area Defense Region (Tank Site “E”) Formerly Used Defense Site, Nome, Alaska (August, 2011). This plan duplicates work that was performed or attempted during April, 2011. During the April sampling effort, six of the wells were unable to be sampled; five were dry and one was not located due to snow cover. MW2008-1 was reported to contain almost five feet of free phase product and no water during an August, 2010 sampling effort, but was dry during the April 2011 sampling; thus a planned drawdown test to assess product recoverability could not be performed. The tasks described in the August 2011 work plan are identical to those in the April work plan, with the addition of collecting natural attenuation parameters.
|
Tamar Stephens |
| 1/9/2012 |
Document, Report, or Work plan Review - other |
Reviewed and sent comments on Draft Groundwater Sampling Work Plan. Field work is scheduled for August 22-25, 2010. |
Tamar Stephens |
| 6/25/2013 |
Site Characterization Workplan Approved |
DEC approved the 2013 Groundwater Sampling Workplan Addendum and an "impartial third party" waiver to allow the Corps of Engineers technical staff to conduct the monitoring and reporting. The plan calls for monitoring the 11 pre-existing groundwater monitoring wells and the 5 additional wells installed during 2012. All wells that do not contain LNAPL will be sampled for DRO, RRO, BTEX, PAHs, 1,2-DCA, EDB and lead. Monitoring results will be compiled and reported with the data from the 2012 fieldwork and will feed into a feasibility study to evaluate cleanup alternatives.
|
John Halverson |
| 11/25/2013 |
Document, Report, or Work plan Review - other |
DEC received a Draft 2013 Well Installation and Sampling Report for the Site. |
Dennis Shepard |
| 12/20/2013 |
Document, Report, or Work plan Review - other |
DEC provided preliminary review comments for the Draft 2013 Well Installation and Sampling Report. DEC requested that full laboratory analysis reports be provided for further review. |
Dennis Shepard |
| 12/23/2013 |
Document, Report, or Work plan Review - other |
DEC received the requested full laboratory analysis reports for the Draft 2013 Well Installation and Sampling Report. |
Dennis Shepard |
| 1/6/2014 |
Update or Other Action |
Site transferred from Shepard to Savage. |
Rebecca Bryan |
| 4/2/2014 |
Update or Other Action |
Final Well Installation and Sampling Report, Nome Tank E FUDS Project report received. The USACE installed five free-product recovery/groundwater monitoring wells at Nome Tank Site E in late summer 2012. Sub-surface soil samples taken during well installations showed conentrations of diesel-range organics (DRO) and polycyclic aromatic hydrocarbons (PAH) above ADEC cleanup levels listed in 18 AAC 75 Table B1. |
Meredith Savage |
| 8/15/2014 |
Document, Report, or Work plan Review - other |
Received electronic copy of Groundwater Sampling Work Plan, Nome Area Defense Region (Tank Site "E" POL Contamination) Formerly Used Defense Site. The report provides a work plan to assess the nature and extent of fuel contamination in the groundwater. |
Meredith Savage |
| 8/22/2014 |
Update or Other Action |
Meeting held with RPs to discuss Nome Tank Site project. Discussed potential of phasing removal work over several field seasons. |
Meredith Savage |
| 8/27/2014 |
Update or Other Action |
Approval provided for USACE request for a Waiver of the Impartial Third Party Requirement (18 AAC 75.355(b); USACE wishes site sampling work to be conducted by four Alaska District employees who meet the definition of "qualified person" as defined by 18 AAC 75.990(100). |
Meredith Savage |
| 9/2/2014 |
Document, Report, or Work plan Review - other |
The Alaska Department of Environmental Conservation (ADEC) received an electronic copy of the final Groundwater Sampling Work Plan on August 26, 2014. This work plan addresses the groundwater sampling and analysis, well testing, and natural attenuation parameters sampling that will be carried out in an effort to better assess the nature and extent of fuel contamination. Groundwater samples will be analyzed for gasoline, diesel, and residual range organics (GRO, DRO, and RRO), benzene, toluene, ethylbenzene and xylenes (BTEX), 1,2 dichloroethane (DCA), ethylene dibromide (EDB), and polycyclic aromatic hydrocarbons (PAHs). Analysis to gauge natural attenuation includes nitrate/nitrite, sulfate, iron, and manganese. |
Meredith Savage |
| 3/25/2015 |
Update or Other Action |
Draft work plan received for Tank E Demolition and Contaminated Soil Removal. |
Meredith Savage |
| 5/22/2015 |
Meeting or Teleconference Held |
Comment resolution meeting held; addressed sampling methodology and design. |
Meredith Savage |
| 6/17/2015 |
Document, Report, or Work plan Review - other |
The Alaska Department of Environmental Conservation (ADEC) received an electronic copy of the final version document Nome Tank E Tank Demolition and Contaminated Soil Removal Work Plan on June 16, 2015. The report describes the field activities associated with the demolition of an approximately 1,000,000 gallon fuel storage tank, removal and disposal of associated piping, sampling and removal of overburden soil surrounding the tank, construction of a landfarm, excavation of petroleum, oil, and lubricant (POL) contaminated soil beneath and in the vicinity of the tank, transport of the contaminated soil to the landfarm and subsequent treatment through tilling events. ADEC has reviewed this report and accepts it as final. |
Meredith Savage |
| 9/4/2015 |
Site Characterization Workplan Approved |
The ADEC Contaminated Sites Program approved the Groundwater Sampling Work Plan, Nome Tank Site ‘E’ POL Contamination Formerly Used Defense Site F10AK005211 CON/HTRW Nome Area Defense Region, Nome, Alaska. |
Jessica Morris |
| 10/7/2015 |
Meeting or Teleconference Held |
Reviewed DSMOA joint execution plan (JEP) for Nome Area Defense Sites. Indicated the state obligations were met for FY14-16 JEP. |
Dennis Shepard |
| 6/5/2016 |
Document, Report, or Work plan Review - other |
DEC provided review comments for the 2015 Annual Report, Tank Demolition and Contaminated Soil Removal, Nome Tank Site “E” POL Contamination, Nome, Alaska. Based on the review it appears that landfarm soil soaking/wetting and soil/water handling described for 2016 work should be submitted as a revision to the approved work plan. |
Dennis Shepard |
| 8/3/2016 |
Update or Other Action |
DEC provided a letter documenting concerns for the landfarm procedures being implemented at the Nome Tank E site. DEC requested that all contractor daily reports from the landfarm operations be submitted. DEC also asked that a workplan addendum be submitted if USACE proposes to conduct soil washing. The USACE was instructed to obtain DEC approval prior to initiating any soil washing activity. |
Dennis Shepard |
| 8/16/2016 |
Document, Report, or Work plan Review - other |
DEC provided comments for the 2016 Nome Tank Site “E” POL Contamination, Groundwater Sampling Work Plan Addendum, Nome, Alaska. |
Dennis Shepard |
| 11/7/2016 |
Enforcement Action |
DEC sent a Compliance advisory letter to the USACE and its contractor (BES). The letter documented a failure to follow the approved workplan and modification to the approved workplan without approval. DEC revoked the Demolition and Contaminated Soil Removal Work Plan (Work Plan) for the Nome Tank Site “E” POL Contamination, Nome, Alaska (June 2015). DEC requested corrective actions including: Submittal of a written response to the compliance letter by November 30, 2016, Submittal of the 2016 Nome Tank Site E Annual Report to DEC by January 30, 2017, Submittal of a Revised Soil Removal and Landfarming Work Plan, and Submittal of a Revised Groundwater Monitoring Work Plan with semi- annual groundwater monitoring. |
Dennis Shepard |
| 11/28/2016 |
Document, Report, or Work plan Review - other |
DEC provided comments for the Fall 2016 Groundwater Sampling Report, Nome Tank Site “E”, Formerly Used Defense Site, Nome, Alaska (October 2016). |
Dennis Shepard |
| 12/1/2016 |
Meeting or Teleconference Held |
CS managers participate in the annual FUDS site management action plan meeting. The purpose of the is to collaborate with FUDS management on site progress and prioritization for all of the formerly used defense sites. FUDS prioritization is based on risk, congressional interest, state input and proximity to other sites on the prioritization list. FUDS has increased environmental restoration funding in Alaska for the 2017 and 2018 field seasons to meet National goals for site progress. |
Darren Mulkey |
| 12/20/2016 |
Meeting or Teleconference Held |
A meeting was held in Anchorage Alaska between the U.S. Army Corps of Engineers representatives and DEC. The meeting was held to discuss a path forward for the Nome Tank E site and landfarming effort. DEC provided clarification of items that need to be removed or revised in the landfarm workplan in order to be approved. |
Dennis Shepard |
| 3/3/2017 |
Update or Other Action |
A teleconference was held to scope to the 2017 Landfarming Work Plan for the Nome Tank E site. USACE and its contractor participated in the scoping in order to facilitate the work plan development and approval process. |
Dennis Shepard |
| 6/30/2017 |
Document, Report, or Work plan Review - other |
Approval of Addendum to Revised Final Work Plan for Tank Site "E" |
Jamie McKellar |
| 8/31/2017 |
Document, Report, or Work plan Review - other |
DEC approved the 2017 Addendum 2 to the Revised Final Work Plan (June 2015). The addendum added the use of an alternative brand of soil test kit (landfarm.luster leaf® rapitest®) for monitoring nitrogen, phosphorus, and potassium concentrations of the Nome Tank Site “E” . |
Dennis Shepard |
| 8/7/2019 |
Update or Other Action |
Approved Closure of the Category 2 Landfarm areas and reuse of soils on-site. |
Michael Hooper |
| 9/3/2019 |
Offsite Soil or Groundwater Disposal Approved |
Approved Transport of contaminated soil to Nome Landfill. |
Michael Hooper |
| 5/8/2020 |
Document, Report, or Work plan Review - other |
Approved 2020 removal action report detailing final landfarm sampling and closure. All samples collected from landfarm soils and underlying soils were below the cleanup levels post treatment and landfarm soils have been placed back in the excavation. |
Michael Hooper |
| 5/28/2020 |
Document, Report, or Work plan Review - other |
Approved a report documenting 2019 groundwater monitoring. petroleum constituents exceed the cleanup levels in 3 wells at this site. |
Michael Hooper |
| 6/16/2021 |
Site Characterization Report Approved |
Approved a groundwater monitoring report. groundwater conditions at the site are stable. Contamination was only found in one well, though site conditions limited collection of samples from 4 of the 12 wells. |
Michael Hooper |
| 9/7/2021 |
Site Characterization Workplan Approved |
Approved groundwater monitoring workplan. |
Michael Hooper |
| 3/30/2022 |
Long Term Monitoring Workplan or Report Review |
Reviewed Groundwater Monitoring report. The groundwater plume appears stable
Sent letter requesting additional characterization at Appurtenance 9, Appurtenance 3, and the main pipe 36 location where 2019 sampling indicated that contamination remains above the MTGW CULs. |
Michael Hooper |
| 10/11/2022 |
Long Term Monitoring Workplan or Report Review |
Approved workplan for sampling wells which have had historically exceedances: MW2015-08, MW2015-10, MW2019-01, MW2019-02, and MW-E1R will be sampled. The remaining wells will be decommissioned. |
Michael Hooper |
| 6/21/2023 |
Document, Report, or Work plan Review - other |
On June 21, 2023 ADEC approved the 2022 Groundwater Sampling Nome Tank Site ‘E’ Petroleum, Oil, and Lubricants Contamination Nome Area Defense Region, Formerly Used Defense Site F10AK005211 Nome, Alaska. A final report addressing ADEC’s comments was submitted on June 20, 2023.
This report describes the groundwater monitoring and well decommissioning effort conducted in October 2022 at the Nome Tank Site ‘E’ FUDS in Nome, Alaska. The groundwater sampling and well decommissioning was performed in October 2022. The following monitoring wells were decommissioned during the 2022 long-term monitoring event: MW2008-6, MW2008-7R, MW2015-01, MW2015-02, MW2015-03, MW2015-06, and MW2015-09.
The 2022 groundwater sample results indicate that concentrations of petroleum, oil, and lubricant
(POL) constituents in most wells at the site remain below the ADEC Table C groundwater
cleanup levels. Concentrations of DRO, 1-methylnaphthalene, and naphthalene were reported
above the respective ADEC Table C cleanup levels at monitoring well MW2019-02, located near
the source area. The remaining POL concentrations were either not detected or reported at
concentrations below the respective ADEC cleanup levels. |
Alyssa Wood |
| 9/13/2023 |
Document, Report, or Work plan Review - other |
ADEC approved an Addendum To 2018 Groundwater Sampling Work Plan. Nome Tank Site ‘E’ Petroleum, Oil, And Lubricants (Pol) Contamination Nome Area Defense Region. Nome Alaska. This addendum updated the monitoring scope reduction from 16 to 5 remaining monitoring wells and included the updated monitoring well schedule. |
Alyssa Wood |
| 4/19/2024 |
Document, Report, or Work plan Review - other |
On April 19, 2024 ADEC approved the final 2023 Groundwater Sampling Nome Tank Site ‘E’ Petroleum, Oil, and Lubricants Contamination Nome Area Defense Region, Formerly Used Defense Site F10AK005211 Nome, Alaska report. This report describes the groundwater monitoring sampling event conducted in September 2023 at the Nome Tank Site ‘E’ Formerly Used Defense Site (FUDS) in Nome, Alaska. The groundwater sampling was performed in September 2023 and exceedances were found near the source area and at two nearby wells. |
Alyssa Wood |
| 8/27/2024 |
Document, Report, or Work plan Review - other |
DEC received and provided comments on the Draft 2024 Addendum to the 2018 Groundwater Sampling Work Plan. The work plan details groundwater monitoring activities proposed for the Nome Tank Site “E” area in September 2024. US Army Corps of Engineers (USACE) will sample five monitoring wells for diesel range and residual range organics (DRO, RRO), polycyclic aromatic hydrocarbons (PAHs), and monitored natural attenuation parameters such as dissolved iron and manganese, and sulfate. |
Tim Sharp |
