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Site Report: Totem Trailer Town

Site Name: Totem Trailer Town
Address: 701 Klevin Street, , Anchorage, AK 99508
File Number: 2100.38.379
Hazard ID: 3315
Status: Cleanup Complete - Institutional Controls
Staff: IC Unit, 9074655229 dec.icunit@alaska.gov
Latitude: 61.215957
Longitude: -149.802569
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.

Problems/Comments

The Totem Trailer Town site is a residential mobile home park comprising just under 10 acres bounded by 6th and 8th Avenues to the north and south and South Hoyt Street and Klevin Street to the west and east. In the late 1960's Denali Fuels installed a centralized distribution system consisting of one large underground heating oil storage tank and a distribution piping system that delivered heating oil to each of the trailers. Extensive fuel-oil contaminated soil and shallow groundwater was documented during tank and associated piping removal from May - July 2000. Eight underground heating oil tanks were removed including five 200-gallon tanks, a 250-gallon tank, a 300-gallon tank and a 15,000 gallon tank. Approximately 2000 cubic yards of heating-oil contaminated soil was excavated and transported offsite for thermal remediation. Another mobile home park, Sunset Manor, occupies a similar area adjacent to and north of the Totem site, between 4th and 6th Avenues. Both parks are owned by Zo Hawkins. Sunset Park is a separate property and is not considered part of the Totem site. The Totem site is identified as Municipality of Anchorage Parcel 00505424000.

Action Information

Action Date Action Description DEC Staff
5/26/2000 Update or Other Action Contamination reported to ADEC on May 26, 2000, as per communication dated June 2, 2000 from consultant Bristol with subject line "UST Removal at Totem and Sunset Trailer Parks". Eileen Olson
6/2/2000 Offsite Soil or Groundwater Disposal Approved ADEC approved transport and thermal remediation of initial 100 cubic yards of stockpiled DRO-contaminated soils, and any other DRO-contaminated soil from same source type (heating oil) encountered during future excavation without the requirement for pre-treatment analysis at ASR. Consultant Bristol stated that it would notify ADEC within 48 hours of the total amt. of contaminated soil hauled to ASR for treatment.(The first record on file providing the total volume of soil remediated at ASR is the "Project Costs" communication by Bristol Environmental dated February 21, 2001--the total volume was approximately 2000 cubic yards). Jim Frechione
7/21/2000 Update or Other Action ADEC received confirmation from Alaska Soil Recycling (ASR) that 1,994.59 tons of petroleum impacted soil was received from June 19 - 26, 2000 and was successfully remediated. Eileen Olson
8/1/2000 Update or Other Action "Release Investigation Work Plan...August 2000" prepared for The Turner Company by Bristol Environmental received from parties in legal proceedings on 1/30/2007. Eileen Olson
11/21/2000 Update or Other Action ADEC received a formal spill report for which ADEC filed out a new site report form on 11/16/2000. Submitted with the reporting information were results from sampling the three drinking water wells that service the two adjacent mobile home parks; however, no map showing well locations or well logs were provided. Also submitted were sample results for the May through July 2000 excavation confirmation sampling. The highest result was 830 mg/kg DRO at a depth of 1.5 feet. The data are of limited use so far as they were provided without narrative or context with respect to standard technical reporting practices. Scott Pexton
1/17/2001 Site Added to Database Underground Heating Oil Tanks and associated piping; historical spills. Bruce Wanstall
1/24/2001 Site Ranked Using the AHRM Preliminary ranking. Bruce Wanstall
5/15/2001 Update or Other Action A prospective buyer's representative submitted documents including project status and project costs letter reports both dated February 21, 2001, a copy of the release investigation work plan dated November 1, 2000 (previously submitted; see entry for 11/3/2000), and a copy of the phase I site assessment dated March 2000 (not previously submitted), all prepared by Bristol. The project status report states that eight non-regulated heating oil USTs and approximately 710 feet of associated piping were removed from the Totem site from May through July 2000. The tanks included six 200-gallon tanks, one 300-gallon-tank, one 700-gallon tank and a 15,000-gallon tank. Three drinking water wells present at the site were analyzed for BTEX, GRO and DRO with no contaminants present above the detection limit. A test pit was excavated to a depth of 25 feet to determine if water was present; the report is vague but indicates that the only water encountered was perched water in the upper ten feet. The consultant estimated a maximum volume of contaminated soil of 23,000 cubic yards (or 31,000 cubic yards using what was termed 'a soil swelling factor of 1.33' to account for de-consolidation when excavated). The consultant concluded 1) there is a 60-foot thick confining layer that begins approximately ten feet below the ground surface, 2) there is only intermittent perched groundwater above the confining layer, and 3) there is no groundwater migration pathway to underlying aquifers. The project status report notes that a release investigation (RI) report will be submitted later. According to the Project Costs letter report dated February 21, 2001, 2000 cubic yards of soil was transported off-site and thermally remediated. The only analytical results provided by Bristol were apparently of in situ soil with a maximum result of 830 mg/kg DRO. (8/7/2009 staff note: The release investigation that should have provided complete information was never submitted to ADEC). Eileen Olson
1/11/2002 Document, Report, or Work plan Review - other ADEC file review and information request letter sent to owner Zo Hawkins issued identifying data gaps and summarizing site status, based on information provided to ADEC to date. ADEC's letter requested all reports and data related to environmental observations and work at the site, and noted that while the groundwater at the site is described as "perched", the demonstration has not been made that groundwater is not a contaminant migration pathway. Eileen Olson
2/13/2004 Potentially Responsible Party/State Interest Letter PRP letter to owner Zo Hawkins requesting information regarding the heating oil system and associated contamination at Totem Trailer Park and adjacent Sunset Manor. Eileen Olson
2/13/2004 Update or Other Action File number changed from CS100.244 to 2100.38.379. Sarah Cunningham
2/17/2004 Potentially Responsible Party/State Interest Letter PRP letter sent to Denali Fuel Company through counsel Susan Reeves requesting information regarding the heating oil fuel system and associated contamination at Totem Trailer Park and adjacent Sunset Manor. The letter notes that Denali Fuel Company constructed the heating oil distribution system and contracted with the property owner to install and maintain the central fuel oil storage and line distribution system and to provide fuel to the mobile homes at the property for a period of 20 years. The letter notes that ADEC has no record that the ownership of the fuel tanks and associated piping was transferred to another entity following termination of the contract. Eileen Olson
4/20/2007 Exposure Tracking Model Ranking Initial ranking by ETM. Eileen Olson
5/11/2007 Document, Report, or Work plan Review - other ADEC letter conditionally approving work plan dated 5/10/2007 for site characterization; ALTA Geosciences, consultant for insurance company, is doing the site work. The condition of approval was that "if ALTA encounters highly contaminated media during site work, for example fuel saturated soil or free product in groundwater, it notify this office within 24 hours." The stated purpose of the work was to evaluate the extent of contamination to better assess potential remediation options and costs. The plan proposed excavating and sampling shallow trenches below pipelines and some deeper trenches to the groundwater. The work to be performed was identified as Phase 1 with the objectives of: 1-Evaluate contaminant distributions to identify migration pathways and controls and to possibly identify other potential non-pipeline-related sources (e.g., trailer USTs); 2-Assess DRO concentrations in areas identified as contaminated and attempt to correlate Bristol's reported PID readings (from 2000 work) with laboratory DRO concentrations; 3-Evaluate the integrity of the three distribution lines identified between trailer 73 and 91; and 4-Estimate the total volume of potentially contaminated soil in the southwest quarter based on all available data. Then estimate the average volume of contaminated soil per source: distribution line connections, distribution line elbows, mainline junctions, and the large USTs. Eileen Olson
6/2/2007 Update or Other Action Rec'd email update from ALTA Geosciences that site investigation work as per plan dated 5/10/07 was completed on May 24 and contamination was verified in soil and perched groundwater particularly in southwest and southeast areas of property. Eileen Olson
6/14/2007 Update or Other Action Removed references to the adjacent Sunset Park mobile home park from Totem Trailer Town site description since the two properties are separate and contamination has not been documented at the Sunset Park property. Eileen Olson
7/10/2007 Update or Other Action Rec'd soil analysis laboratory results for May 21-24, 2007 site work by ALTA Geosciences, Inc. via email from RP's attorney, George Lyle. Site work included test pit excavation and sampling. Maximum DRO encountered in a near-surface sample was 69,100 mg/kg, and maximum from a sample at depth (7.5 feet below ground surface) was 5,430 mg/kg DRO. Eileen Olson
7/11/2007 Update or Other Action Received report prepared by Terrasat, consultant for site owner, titled "A Formulated Cost Estimate for Remediation of Contamination at the Totem Trailer Town Site" dated July 3, 2007 from attorney for Z. Hawkins, site owner. The report provides figures that incorporate May 2007 contaminant concentrations. The report does not include costs (these were removed for submittal to ADEC) but provides some site information including the fact that Terrasat personnel were present during some of the field work performed by ALTA Geosciences and collected data concurrently. The report notes that ADEC does not require removal of the approximatey 4,546 feet of pipeline at the property but do require "exposing pipeline...to locate the source of the massive soil and groundwater contamination...at the Totem facility." Subsurface information is lacking in the northern half of the site primarily because of existing trailers obstructing investigation. The report estimates average groundwater depth in the south half of the site as 8.5 feet and greater than 18 feet in the northern section. Terrasat estimates the volume of contaminated soil at the site to be 12,386 cubic yards. Eileen Olson
7/18/2007 Update or Other Action Received report titled "Preliminary Data Summary Report" dated 6/27/2007 and prepared by ALTA Geosciences for Susan Reeves, attorney for company that insured the site. The report describes field sampling performed May 21-24, 2007 in general accordance with the work plan dated May 10, 2007 approved by ADEC. 22 test pits were excavated to maximum depths of 18 feet the remaining oil pipeline in the southwest portion of the site was exposed that had not previously been excavated by Bristol. 50 soil samples were submitted for analysis for GRO and DRO. Groundwater was reportedly 5-8 feet below the ground surface in the southern portion of the site and over 18 feet deep in the northern portion. The report concludes that 11 of the 22 test pits did not show evidence of hydrocarbon impacts, however, some pits were excavated to water and some were not, and the report does not indicate whether water was encountered in the observably contaminated pits. Also, while most contamination was described as being present in the groundwater smear zone, the probable source of contamination present at 1.5 feet below the ground surface containing 5,880 mg/kg DRO was not discussed, and the location of a sample from a depth of one foot containing 69,100 mg/kg DRO was not further investigated. The report did not include estimates of contaminant volumes and concentrations remaining at the site that were to be provided according to the approved plan. The preliminary report was received by email; the accompanying email from ALTA Geosciences noted that analytical data provided 7/17/2007 was provided to ADEC without knowledge of ALTA, so the preliminary report was provided for clarification. Eileen Olson
7/19/2007 Update or Other Action Received copies of various files including public legal documents from attorney for site owner. Eileen Olson
8/15/2007 Meeting or Teleconference Held ADEC project manager met with consultants and attorneys for site owner and for fuel company's insurer to discuss ADEC requirements for site characterization. Eileen Olson
8/17/2007 Update or Other Action ADEC letter to each PRP (owner Zo Hawkins and attorney for fuel co. insurance firm, Susan Reeves) requesting investigation to characterize contamination site-wide, and to determine whether contamination is migrating offsite in groundwater. Letters are essentially identical and each party was advised the other was receiving the letter. Eileen Olson
10/2/2007 Update or Other Action ADEC staff received email from George Lyle, attorney for site owner, asking whether ADEC will approve a plan to install 7 site perimeter wells. The email states that if ADEC concurs, the PRPs have agreed to have a third consultant, Bristol, do the work. Eileen Olson
10/2/2007 Update or Other Action ADEC received memorandum from ALTA Geosciences to attorney Susan Reeves. The memorandum recommends an initial well installation program of 7 wells, with four no deeper than 12 feet, and the remaining wells drilled in the northern part of the site (where groundwater is believed to be deeper than in the southern part) to depths greater than 12 feet but not expected to be more than 35 feet deep. Eileen Olson
3/27/2008 Document, Report, or Work plan Review - other ADEC conditionally approved preliminary groundwater investigation work described in the September 25, 2007 submittal by ALTA Geosciences noting that proposed groundwater investigation does not meet all of the requirements of the Department's August 17, 2007 letter. Letter again requests response to past PRP letters to both addresses, who represent the property owner and the insurer for the company that installed and for a period of time operated the heating oil system for the trailer park. Eileen Olson
4/8/2009 Update or Other Action ADEC letter requesting through counsel, that landowner Zo Hawkins submit a work plan by May 31, 2009 for completion of site characterization, with work to begin by June 30, 2009. Eileen Olson
7/21/2009 Proposed Plan ADEC received "Proposed Work Plan for Further Characterization of Totem Trailer Town Soil and Groundwater". The plan also includes groundwater data and boring logs for six monitoring wells installed and sampled by Bristol Environmental in 2008 not previously submitted to ADEC. Eileen Olson
8/11/2009 Update or Other Action ADEC requested and received from current consultant, Travis/Peterson Environmental Consulting, copies of field notes from April 2008 field work by Bristol Environmental and copies of two analytical reports for the same work. One data package is dated 4/16/2008 and includes soil samples from wells MW-1 through MW-6 collected on 4/7 - 9/2008 that were analyzed for DRO. The second data package is dated 4/18/2008 for groundwater samples for MW-1 through MW-5 collected on 4/15/2008, with analysis for BTEX by 8260 and DRO. Eileen Olson
9/24/2009 Update or Other Action ADEC received report of August 31/September 1, 2009 Totem Trailer Town site work that included sampling six wells and digging a test pit near MW6 to determine whether shallow water was present. The 9/1/2009 sampling was the 3rd sampling of the wells. The water level in MW6, the southernmost groundwater monitoring well on the site, was 4.9 feet below the ground surface. MW6 is screened from 20-30 feet and had a depth to water measurement of 29.5 feet in April 2008. Eileen Olson
9/25/2009 Document, Report, or Work plan Review - other ADEC plan approval letter for "Proposed Work Plan,for Further Characterization of Totem Trail Town Soil and Groundwater" dated July 21,2009. The letter notes that the review also included field notes and laboratory data received on August 11, 2009 for field work done in April 2008, and the report with subject line "August 31/September 1, 2009 Totem Trailer Town Site Visit" dated and received on September 24,2009. The plan proposes advancing and completing as monitoring wells six borings in the area south of 7th Avenue, five borings in the area north of 7th Avenue, and an additional boring west of Klevin Street. An attempt will be made to establish connectivity between wells by stratigraphic correlation and water level observation, specifically pumping observations. If possible, a groundwater sample will be collected from the Totem drinking water well that was installed in 1986. Eileen Olson
3/30/2010 Update or Other Action Report received with subject line "Re October 7-9, 2009 Field Work and November, 2009 Drum Removal" prepared by Travis/Peterson Environmental Consulting for Owner. Eileen Olson
4/9/2010 Offsite Soil or Groundwater Disposal Approved Approved request to transport investigation-derived waste contaminated by fuel oil; 11 tons in drums to be transported to Alaska Soil Recycling. Post-treatment sampling to be done for RRO and DRO.(On 4/20/2010 ADEC signed a letter from Alaska Soil Recycling (ASR) acknowledging ASR's statement that the 28 55-gallon drums of petroleum impacted soil received April 15, 2010 will be comingled with other soils as the soils are covered by the bonding requirements of the 18 AAC 75.365; and that there is no further remedial action required by the responsible party for these soils). Eileen Olson
5/25/2010 Update or Other Action Report "May 7, 2010 Field Work" prepared by TPEC received June 2, 2010. Eileen Olson
6/25/2010 Meeting or Teleconference Held Teleconference between DEC, environmental consultant Travis/Peterson and owner's representative, attorney George Lyle to discuss next steps based on monitoring well results reported in the letter report "May 7, 2010 Field Work" dated May 25, 2010 and submitted to DEC on June 2, 2010. Consultant identified gaps in monitoring well coverage and will propose additional wells and possibly test pits. Since accessibility for purposes of test pits and monitoring wells is limited due to closely placed mobile homes, the consultant will first visit the site and determine the possible locations before proposing supplementary work. Eileen Olson
7/7/2010 Update or Other Action DEC received electronic copy of workplan and report titled "Totem Trailer Town Proposed Monitoring Wells" dated July 7, 2010. The plan summarizes two groundwater sampling events and proposes additional soil and groundwater sampling including completing four borings as monitoring wells to depths up to 15 feet. Eileen Olson
7/9/2010 Document, Report, or Work plan Review - other DEC approval letter for soil borings and monitoring well installation proposed in the "Totem Trailer Town Proposed Monitoring Wells" plan and report dated July 7, 2010. Eileen Olson
9/7/2010 Update or Other Action DEC received report "Totem Trailer Town Monitoring Well Installation and Sampling" for work done on July 10, 2010. Eileen Olson
10/25/2010 Offsite Soil or Groundwater Disposal Approved Approved plan to transport approximately 1.5 tons of investigation-derived waste to Emerald Services for treatment. Eileen Olson
11/24/2010 Update or Other Action Totem "Conceptual Site Model Narrative" document dated Nov. 16, 2010 and "Totem Sampling Summary and Closure Request" dated November 24, 2010 received. The summary discusses contamination remaining on the site, conditional closure, and proposed institutional controls. Eileen Olson
12/20/2010 Update or Other Action ADEC received the Totem Trailer Town Monitoring Well Installation Screen Depths and Water Depths letter report on December 20, 2010 in response to a request for additional information. Eileen Olson
1/3/2011 Meeting or Teleconference Held Staff met with consultant TPECI regarding issues stemming from a review of the request for site closure made in TPECI’s Totem Trailer Town Monitoring Well Installation and Sampling report dated November 24, 2010. Also reviewed and discussed was the Conceptual Site Model received November 24, 2010, and additional information requested by ADEC presented in the Totem Trailer Town Monitoring Well Installation Screen Depths and Water Depths letter report received December 20, 2010. During the meeting revisions and information were identified that will be needed before completing the review, including but summary tables, groundwater data, corrected figures and an updated well search. Eileen Olson
1/25/2011 Document, Report, or Work plan Review - other ADEC approved the location for a new monitoring well (MW22)to be placed along the east property boundary of the site, based on a figure provided this date by consultant Travis Peterson. Eileen Olson
1/28/2011 Site Visit Staff visited the site during a.m. drilling and viewed samples from the 8-10 interval of boring that will be completed as a monitoring well (MW22) and that is slated for development and sampling Monday January 31st. Eileen Olson
5/9/2011 Document, Report, or Work plan Review - other ADEC conditionally approved the work plan dated and received this date for removal of a heating oil UST discovered in January 2011. Eileen Olson
5/11/2011 Document, Report, or Work plan Review - other ADEC reviewed a brief report for heating oil UST removal submitted this date; no contamination was discovered during tank removal. Eileen Olson
6/9/2011 Update or Other Action ADEC received consultant TPEC's "Well Search and Ground Water Information for Torem Trailer Town" report dated March 30, 2011. With respect to drinking water used at the park the report states as follows: "The drinking water supply for Totem Trailer Town comes from ground water wells. One well is located on the lot south west of the mobile home park on the south east corner of the Klevin St. and E. 8th Ave. intersection. The other wells serving Totem are located in a well house on the west side of the mobile horne park property just south of E. 7th Ave. The Public Drinking Water System identification number is AK2210574. These wells were not identified in the EDR GeoCheck® Report, USGS, or Municipal database. One of the wells located in the well house and currently serving the mobile home community was found in the WELTS system. This well was drilled in August 1986. The well is 212.33 feet deep and is screened from 198 below ground surface (bgs) to 208.5 bgs. A well in the well house was sampled in August 2009 for diesel range organics, benzene, toluene, ethylbenzene, and total xylenes. All of these parameters were not detected by the laboratory.It is unlikely that drinking water, derived from approximately 200 feet bgs would be affected by any remaining contaminated soil at the site. There is almost 200 feet of vertical distance between the contaminated soil and the deep aquifer. According to the 1986 well log a hard clay layer is about ten feet above the well screen. The water in the well rose to a static level 53 feet bgs, indicating that the hard clay is a confining layer and the aquifer is under pressure." Eileen Olson
6/14/2011 Update or Other Action Received report "Totem Trailer Town Monitoring Well Soil and Groundwater Sampling, April 2008 - Present" revised 6/13/2011. The purpose of the report is to address site closure concerns discussed during the January 3, 2011 meeting and follow-up email by ADEC. Eileen Olson
6/28/2011 Update or Other Action ADEC letter issued with subject line "Notice regarding Cleanup Complete--Institutional Controls (CC/IC)" notifying responsible party that a future record of decision will include institutional controls, and the type of institutional controls that will be required. Eileen Olson
10/12/2011 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 74290 name: Heating oil tanks and piping system Eileen Olson
4/6/2012 Meeting or Teleconference Held Met with counsel for owner to discuss institutional controls and next steps in achieving cleanup complete with ICs. Eileen Olson
5/21/2012 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 74290 Heating oil tanks and piping system. Eileen Olson
5/24/2012 Cleanup Complete Determination Issued Cleanup Complete with ICs issued; NEC to be recorded after certain conditions of the decision are met. Eileen Olson
6/13/2012 Update or Other Action ADEC received Attachment A to the May 24, 2012 decision document signed by the property owner on 6/11/2012. Eileen Olson
6/14/2012 Institutional Control Record Established Institutional Controls established and entered into the database. Eileen Olson
8/28/2012 Document, Report, or Work plan Review - other ADEC letter issued conditionally approving "Proposed Work Plan for further Characterisation of Totem Trailer Town Soil" and acknowledging receipt of "July 2012 Ground Water Monitoring Event." Eileen Olson
8/29/2012 Site Visit Staff visited site while consultant attempted to locate and excavate two areas that were investigated in the past, designated Test Pit C and First Coupling location, with the latter refering to a stained area encountered during excavation along a pipeline that has not been removed. Eileen Olson
9/26/2012 Site Visit Site visit with TPECI and TERRASAT representatives to locate in the field the location of former Test Pit C and the First Coupling locations described in TERRASAT and ALTA Geosciences 2003 reports. Eileen Olson
10/30/2012 Document, Report, or Work plan Review - other Reviewed summary of next steps by consultant received by email on 10/29/2012. ADEC responded by email on 10/30/2012, noting that schedule and other changes discussed with consultant and with owner's attorney effectively modified the Record of Decision (ROD) for the site dated May 24, 2012. ADEC's email copied all of the conditions of the ROD and added comments, requirements or updates to make a record of the conditions that were modified or for which comments could provide clarification. Eileen Olson
7/1/2013 Document, Report, or Work plan Review - other ADEC letter issued conditionally approving "2013 Work Plan for Totem Trailer Town...May 2013" received on May 31, 2013. The plan proposes to 1)replace two damaged wells, MW3 and MW22; 2) sample groundwater from 10 wells including the two replaced wells; 3) decommission fourteen monitoring wells, including the two damaged wells; and 4)confirm the presence or absence of contaminated surface soil at the "First Coupling" location by excavating a trench along the pipeline approximately 5-feet wide and 10-feet long to a depth of 2.5 feet below the ground surface)with collection of a total of two analytical samples proposed. Eileen Olson
7/17/2013 Site Visit Staff on site to observe excavation and sampling along abandoned buried fuel pipeline at location of 'First Coupling', a location that had 69,000 mg/kg DRO during site work in 2007 and that ADEC required further investigation of as a condition of the Record of Decision for the site. Contamination with staining and strong odor was encountered in test trench. Eileen Olson
10/11/2013 Update or Other Action ADEC received report for groundwater monitoring work done in August 2013: "Totem Trailer Town August 2013 Ground Water Monitoring Event and Well Installation and Decommissioning." The report requests decreased frequency of monitoring and a decrease in the number of wells to monitor, with additional wells proposed for decommissioning. Requested by email on 10/14/2013 a figure showing replacement monitoring well locations based on swing tie or other methods. Eileen Olson
12/15/2015 Update or Other Action ADEC received the "2015 Sampling Report for Totem Trailer Town" prepared by Travis/Peterson that documents the Sept. 2015 sampling of nine remaining monitoring wells at the site and requests termination of groundwater monitoring and decommissioning of wells to complete requirements of May 24, 2012 Record of Decision (ROD) and modifications to ROD in ADEC email dated October 30, 2015. NEC to be prepared for filing once conditions of ROD related to groundwater monitoring and investigation of two areas of potentially contaminated near-surface soil are met. Eileen Olson
7/11/2016 Update or Other Action ADEC issued letter with subject line "Addendum to Decision Document dated May 24, 2012 and enclosed Notice of Environmental Contamination (NEC) to be filed by ADEC" dated July 11, 2016. The letter summarizes actions taken after the Totem Trailer Town site was granted Cleanup Complete with Institutional Controls (ICs) status in the decision document dated May 24, 2012. The decision required additional actions including long-term groundwater monitoring and additional investigation of two contaminated areas prior to recording a deed notice (NEC). ADEC found that the environmental actions required by the decision as preconditions to preparation and filing of the NEC were met and the results of groundwater monitoring demonstrated that contaminant concentrations in groundwater are stable, diminishing, or below cleanup levels. Eileen Olson
6/15/2018 Institutional Control Compliance Review IC compliance review conducted. Staff changed from Eileen Olson to IC Unit. Closure/IC Details updated. Reminder system set to follow-up every three years. Kristin Thompson
9/19/2019 Institutional Control Compliance Review An Institutional Controls reminder letter mailed to the responsible party/landowner on this date. Mossy Mead
6/12/2024 Institutional Control Compliance Review IC compliance review completed on this date. An IC reminder letter was issued to the landowner. The next review will be in five years’ time. Gaige Robinson

Contaminant Information

Name Level Description Media Comments
DRO > Table C Groundwater
DRO Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil

Control Type

Type Details
Signed CS Determination
Notice of Environmental Contamination

Requirements

Description Details
Groundwater Use Restrictions ADEC approval is required prior to use of groundwater or installation of additional drinking water wells within the boundaries of the property.
Excavation / Soil Movement Restrictions Contaminated or potentially contaminated soil that is excavated, disturbed, or otherwise handled must be evaluated under an approved work plan and in accordance with the site cleanup rules. The property owner is responsible for ensuring that this requirement is met, and for notifying all parties who plan work that will disturb soil in areas having potential or documented contamination.
Other Decommissioning of monitoring wells must be done in accordance with ADEC guidance and under an approved work plan, with decommissioning of all monitoring wells other than MW11, MW12, MW14, and MW21 completed and a decommissioning report provided to ADEC within 120 days of the 2016 Addendum granted by ADEC. The owner or operator may elect to retain the two contaminated wells (MW12 and MW21) for future monitoring and may postpone decommissioning of the wells that are not accessible (MW11 and MW14); the owner or operator will identify the retained wells in the decommissioning report; and will provide documentation of decommissioning to ADEC within 90 days of the decommissioning at such a time as any of the remaining wells are decommissioned.
When Contaminated Soil is Accessible, Remediation Should Occur If the remaining contaminated soil becomes accessible, for exampled by the removal of mobile homes for property development of if other major changes in land use are planned, ADEC must be notified, and further site characterization and cleanup may be necessary.
Advance approval required to transport soil or groundwater off-site. Standard condition.
Movement or use of contaminated material (including on site) in a manner that results in a violation of the water quality standards is prohibited (18 AAC 70) Standard condition.
Other Standard condition.
Periodic Review ADEC will conduct a review of site conditions every three years.

No associated sites were found.

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