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Site Report: ADOT&PF Peger Road Facility


Site Name: ADOT&PF Peger Road Facility
Address: 2301 Peger Road, Fairbanks, AK 99709
File Number: 102.38.098
Hazard ID: 1402
Status: Active
Staff: Jim Fish, 9074512117 james.fish@alaska.gov
Latitude: 64.825963
Longitude: -147.769907
Horizontal Datum:NAD27

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

Trichloroethylene (TCE) at the Materials Lab to a level of 180 micrograms per kilogram (ug/kg). Old Asphalt Plant tested to reveal DRPH and total petroleum hydrocarbons (TPH) at 1,600 milligrams per kilogram (mg/kg) and 6,400 mg/kg, respectively. Leach field is suspected to be contaminated also. Equipment shop is also suspect of contamination. Municipality of Anchorage (MOA) funding for FY99 - $130K. This funding is targeted for Materials Lab contamination delineation and remediation and Asphalt Plant assessment and soil remediation. Site also includes spill no. 12309934205. Soil and groundwater contamination from a Class V injection well at the cathouse building.

Action Information

Action Date Action Description DEC Staff
11/14/1997 Site Added to Database Site contaminated with DRPH and TPH. Dennis Harwood
4/21/1998 Site Ranked Using the AHRM Ranking action added now because it was not added when the site was originally ranked. Bill Petrik
7/14/1998 Update or Other Action NTP issued to OASIS/Bristol to conduct extensive Phase II assessment, to include remediation alternatives and recommendations. John Mazzitello
10/12/1999 Site Characterization Workplan Approved ADEC approved work plan entitled "Additional Site Characterization Workplan, ADOT&PF Maintenance Facility, 2301 Peger Road" by IT/EMCON dated October 1999. Additional sampling is required at the Lab/HazMat Area, Maintenance and Operations Building, and the Cat House Leach Field. Laura Noland
11/23/1999 Site Ranked Using the AHRM New ranking value based on documented presence of chlorinated solvent in groundwater. Old value = 69.6. Laura Noland
1/24/2001 Meeting or Teleconference Held ADEC held a meeting with our current site contractor, IT to discuss site investigation/cleanup and budget status. David Pikul
6/27/2001 Meeting or Teleconference Held ADEC had an on-site meeting with ADOT&PF Darren Mulkey to discuss further site work and to review ADOT&PF files. David Pikul
10/12/2001 Update or Other Action NTP issued to Shannon & Wilson to install monitoring wells on the north and west property boundaries to assess off-site migration and establish groundwater conditions and the property boundary and historical research on adjacent sites David Pikul
11/27/2001 Update or Other Action ADEC review of Site Characterization work plan. David Pikul
12/5/2001 Meeting or Teleconference Held Teleconference with contractor to discuss ADEC comments to work plan. David Pikul
12/18/2001 Site Characterization Workplan Approved Amendment received following ADEC comments. Work Plan approved. David Pikul
3/14/2002 Meeting or Teleconference Held Meeting at Fairbanks office with David McDowell of Shannon & Wilson and D. Bauer, J. Carnahan, and L. Johnson of ADEC. Discussed elements of workplan and proposed drilling schedule. Douglas Bauer
7/10/2002 GIS Position Updated Changed the Latitude, Longitude, Method Accuracy, Accuracy and Unit fields. Heather Goldman
10/19/2002 Update or Other Action Groundwater investigation scheduled for this fall will be delayed until next spring due to the onset of winter. David Pikul
11/6/2002 Update or Other Action Technical Memorandum from Ecology and Environment detailing statistical sampling for soil if soil is excavated. Douglas Bauer
2/12/2003 Update or Other Action Completed Temporary Use Permit application for FNSB. Drilling to commence week of Feb 17, 2003. John Carnahan
9/15/2003 Update or Other Action Dr. Paul Bradley and Dr. Frank Chapelle with USGS Toxic Substance Hydrology Program sampled selected monitoring wells. Shannon & Wilson to supply soil samples to Dr. Bradley for microcosm studies. Douglas Bauer
11/21/2003 Meeting or Teleconference Held Met with Bill Townsend (DOT Design) and Diana Solie (DOT Materials Lab) to discuss planned expansion of the Materials Laboratory. Additional soil sampling required of proposed excavated material for a determination of waste class (hazardous versus solid). Douglas Bauer
12/16/2003 Update or Other Action Shannon & Wilson's report titled Groundwater Quality Assessment 2002-2003 ADOT&PF Peger Road Operations & Maintenance Facility Fairbanks, Alaska dated December 2003 is submitted. Douglas Bauer
1/2/2004 Update or Other Action Shannon & Wilson obtained 10 soil borings south of the Materials Laboratory to supplement a statistical determination of soil TCE concentrations. Douglas Bauer
1/14/2004 Update or Other Action Soil sample results indicate that soil that will be excavated for the expansion of the Materials Laboratory will not be a hazardous waste Douglas Bauer
1/14/2004 Update or Other Action 2003 Fact Sheet mailed. CS Site Summaries web-page will be updated soon. Douglas Bauer
7/14/2004 Update or Other Action Shannon & Wilson report titled "Ground Water Assessment 2003-2004" dated June 2004 indicates that the deeper TCE ground water plume extends beyond 20the Avenue to the north. Additional wells will be installed during the late summer 2004 in the vicinity of 19th Avenue to detect the distal end of the ground water plume. Douglas Bauer
8/6/2004 Interim Removal Action Approved Shannon & Wilson report titled "Soil Removal Management Plan" dated June 2004 approved by ADOT Project Engineer Mike Hall, City of Fairbanks Public Works Director Dave Jacoby and ADEC Project Manager Douglas Bauer. Plan entails excavating about 1000 cubic yards of TCE contaminated soil and land spreading at the City of Fairbanks City Shop area. A vapor barrier and extraction system will be installed in the excavation during back filling with structurally suitable soil for expansion of the Materials Laboratory. Douglas Bauer
8/19/2004 Update or Other Action Excavation of approximately 1000 cubic yards of contaminated soil in support of the expansion of the Materials Laboratory to begin Saturday 8/21/04. Douglas Bauer
9/29/2004 Update or Other Action Received draft report from USGS Toxic Hydrology Laboratory titled "Chloroethene Biodegradation Potential, ADOT/PF Peger Road Maintenance Facility, Fairbanks, Alaska". Douglas Bauer
11/15/2004 Update or Other Action Received Shannon & Wilson report titled "Soil Removal, Materials Laboratory Addition, ADOT&PF Peger Road Maintenance Facility, Fairbanks Alaska". Soil samples were taken at the bottom of the excavation next to the existing Materials Laboratory building to estimate the degree of contamination that may exist beneath the existing structure. The TCE concentrations ranged between 0.0618 mg/Kg and 0.197 mg/Kg. The concentration levels for the rest of the excavation ranged between 0.0735 mg/Kg and 0.144 mg/Kg. The land spread soil was sampled approximately one month following excavation in late September and the concentration levels ranged between 0.0334 mg/Kg and 0.384 mg/Kg. The TCE migration to ground water standard is 0.027 mg/Kg. The land spread soil will be tilled in spring and late summer 2005 and re-sampled. Douglas Bauer
11/24/2004 Meeting or Teleconference Held A meeting was held with Mark Lockwood and Dr. Jon Lindstrom with Shannon & Wilson to discuss the preliminary results of the 2004 ground water sampling event. At least two additional deep monitoring wells need to be installed to locate the distal end (5 µg/L isopleth) of the trichloroethene (TCE) ground water plume. These additional wells were already budgeted and will be installed this year contingent on the weather. The TCE ground water plume extends north beyond 19th Avenue and is approaching a residential area with known private wells. Also, portions of a benzene ground water plume that commingles with the deep TCE ground water plume have been identified. The source of the benzene ground water plume is unknown at this time. Douglas Bauer
12/14/2004 Meeting or Teleconference Held A meeting was held with David McDowell, Mark Lockwood, and Jon Lindstrom to discuss future measures that could be performed by June 30, 2005. Douglas Bauer
12/16/2004 Meeting or Teleconference Held Met with Jim Frechione who was in Fairbanks. Updated Jim on the latest ground water data for TCE and benzene. Jim authorized submittal of request for proposal for pre-June 2005 work. Douglas Bauer
1/5/2005 Update or Other Action Received a progress report from Shannon & Wilson concerning ground water monitoring and well installation. The deeper portion of the TCE ground water plume extends beyond 19th Avenue towards the northwest; also, benzene was discovered commingled with the TCE. The source of the benzene is unknown at this time. Douglas Bauer
1/6/2005 Update or Other Action A pre-publication technical review was performed for an article titled “Chloroethene Biodegradation in Sediment Microcosms at 4 ºC” co-authored by Drs. Paul Bradley and Frank Chapelle with USGS and Sharon Richmond with the department. The article will be published in the journal Environmental Science and Technology and it disseminates the major findings from the microcosm studies performed for the River Terrace and ADOT&PF Peger Road sites. Douglas Bauer
1/10/2005 Update or Other Action Completed draft 2004 Fact Sheet, forwarded to L. Johnson for review. Douglas Bauer
1/11/2005 Meeting or Teleconference Held A teleconference was held with Dr. Paul Bradley with the USGS to discuss the pre-publication version of Open File Report 2004-1428 titled Chloroethene Biodegradation Potential, ADOT/PF Peger Road Maintenance Facility, Fairbanks, Alaska. Attending the teleconference were Dr. Jon Lindstrom and Mark Lockwood with Shannon & Wilson, and Douglas Bauer and Sharon Richmond with the department. Minor editorial changes were made to the report. Shannon & Wilson will provide updated site maps. The open file report will be published soon. The 2004 draft fact sheet was completed for the ADOT&PF Peger Road Maintenance facility. Douglas Bauer
1/12/2005 Update or Other Action A request for proposal was forwarded to L. Johnson for the installation of new shallow and deep monitoring well. This work can be accomplished by June 30, 2005 and use surplus CIP funds. Douglas Bauer
1/19/2005 Update or Other Action 2004 (FY05) Fact Sheet mailed and forwarded for posting on site summaries web-page. Douglas Bauer
1/19/2005 Update or Other Action Request for Proposal (RFP) was sent to Shannon & Wilson for the installation of additional shallow and deep monitoring wells and the identification and sampling of residential wells. Douglas Bauer
1/26/2005 Update or Other Action Received response to RFP for supplemental ground water assessment, approved it, and returned it to ADEC contracts. Douglas Bauer
2/7/2005 Update or Other Action Received final of USGS report titled "Chloroethene Biodegradation Potential, ADOT/PF Peger Road Maintenance Facility, Fairbanks, Alaska." Douglas Bauer
2/25/2005 Update or Other Action Sent copies of USGS report to Dennis Harwood and Rich Sundet. Douglas Bauer
3/1/2005 Update or Other Action Telephone call with David McDowell with Shannon & Wilson. Discussed use of ADEC notification handout and status of upcoming field activities. Douglas Bauer
3/1/2005 Update or Other Action Proof read notification letter and signed. Made 25 copies and mailed to Mark Lockwood at Shannon & Wilson. Updated database. Douglas Bauer
3/7/2005 Meeting or Teleconference Held Met with J. Frechione and L. Johnson to discuss project status. Douglas Bauer
4/22/2005 Meeting or Teleconference Held The ground water data from two recently installed deep wells for the ADOT&PF Peger Road Maintenance facility project continue to show confounding results. One well was placed at 18th Street and the other further north at 17th Street on the projected center-line of the ground water plume envelop. Both wells were installed at shallower depths than anticipated because of permafrost. The well at 18th Street had non-detect for both trichloroethene (TCE) and benzene. However the well at 17th Street detected both TCE and benzene close to their respective maximum contaminant levels (MCL) of 5 µg/L. It is appears that the top of the permafrost is rising (depth from ground surface to top of permafrost is decreasing) and may be influencing the ground water flow direction. There is less development and land disturbance north of 19th Street which would support this hypothesis. Permafrost within the general area has been detected as shallow as 8-10 feet below the ground surface (bgs) in the less developed areas; whereas the deeper monitoring wells south of 18th Street close to Peger Road have not encountered permafrost to depths of 50 feet bgs. The locations for the remaining budgeted monitoring wells were discussed at a meeting with Mark Lockwood with Shannon & Wilson, Inc. There is a junk yard and several other businesses south of 17th avenue that could be the source(s) for the TCE and benzene that were detected in this well. Therefore the remaining wells will be positioned hydraulically down gradient from the suspected sources and also within the projected envelop of the known PCE and benzene plume. The remaining ground water monitoring wells should be installed within the next month and sampled. Likewise, the sampling of nearby residential wells should also be completed by the end of March. The field work is on schedule and should be completed by the end of June 2005. Douglas Bauer
5/20/2005 Update or Other Action Received an email from Ms. Brenda Hewitt, owner of Norlite Campground. Ms. Hewitt has several questions concerning the ground water contamination and its effect on her property. Replied that her email would be answered next week due to current workload. Sent email to Larry Johnson requesting clarification of ADEC's policy on impacted private residential wells. Clarification email forwarded to Jim Frechione. Douglas Bauer
5/23/2005 Update or Other Action Draft response to Ms. Hewitt's email sent to Larry Johnson for review. Contacted Mark Lockwood with Shannon & Wilson to discuss Ms. Hewitt's email. Norlite campground has a private well on the property. Douglas Bauer
5/24/2005 Update or Other Action Consulted with Larry Johnson and sent reply email to Mr. Brenda Hewitt. Douglas Bauer
7/5/2005 Update or Other Action Received monitoring well permits (ADOT & City of Fairbanks) from Shannon & Wilson. Douglas Bauer
7/21/2005 Update or Other Action Received the following reports from Shannon & Wilson, Inc.: ; Ground Water Quality Assessment 2004-2005 ADOT&PF Peger Road Operations and Maintenance Facility dated June 2005, SGS Laboratory Data; Monitoring Well Installation TCE Plume Extent, ADOT&PF Peger Road Maintenance Facility Ground Water Assessment, Fairbanks, Alaska dated June 30, 2005; Monitoring Well Installation , Benzene Plume, ADOT&PF Peger Road Maintenance Facility Ground Water Assessment, Fairbanks, Alaska dated June 30, 2005; and, Water Well Search and Analytical Sampling, Supplemental Ground Water Assessment, ADOT&PF Peger Road Maintenance Facility dated June 21, 2005. Douglas Bauer
8/19/2005 Update or Other Action Meeting at Shannon & Wilson with David McDowell, Mark Lockwood, and Jon Lindstrom to discuss 2005 field activities. Douglas Bauer
9/2/2005 Update or Other Action Telephone call from Mr. Terry Vraniak, property owner in Highland Park Subdivision. Mailed Shannon & Wilson report to Mr. Vraniak. Douglas Bauer
9/7/2005 Update or Other Action Telephone call from Mark Lockwood with Shannon & Wilson to discuss confirmation sampling for excavated soil that was land spread at City of Fairbanks Maintenance Shop Douglas Bauer
9/9/2005 Update or Other Action Land spread confirmation sampling RFP forwarded to Rich Sundet for approval. Douglas Bauer
9/19/2005 Update or Other Action Prepared 2005 response fund site summary and emailed to Jim Frechione. Douglas Bauer
9/26/2005 Update or Other Action Forwarded FY2006 ground water assessment RFP to Rich Sundet for approval. Douglas Bauer
9/27/2005 Update or Other Action Forwarded FY2006 confirmation soil sampling RFP to Rich Sundet for approval. Douglas Bauer
12/21/2005 Update or Other Action Telepone call from Mark Lockwood with Shannon & Wilson. The average concentration for the land spread soil that was excavated for the construction of the materials lab extension is about 50 micrograms per kilogram (ug/Kg). The migration to ground water standard is 27 ug/Kg. There is adequate funding remaining to conduct additional confirmation testing in June 2006 before the term contract expires. Shannon & Wilson will submit a letter report concerning the latest confirmation sampling. Douglas Bauer
1/13/2006 Update or Other Action Replied to several emails from Frank Chappelle with USGS. Frank is conducting modeling using NAS simulator and requestd updated ground water data and hydrological information. Douglas Bauer
1/26/2006 Update or Other Action Telephone conversation with Ms. Rena Clark who owns property 2701/2709 18th Street. Mailed Ms. Clark a copy of latest residential well results. Douglas Bauer
3/2/2006 Meeting or Teleconference Held Met with Mark Lockwood with Shannon & Wilson to review draft graphics for 2006 interim report. Douglas Bauer
3/23/2006 Update or Other Action Telephone conversation with Mark Lockwood. City of Fairbanks has funding to resume ground water sampling at City's maintenance shop. Chris Haig with the City requested information concerning off-site migration from ADOT onto City property. Mark was authorized to send Chris last published report and an offer to meet with ADEC. City should use their funding to track releases on its property; ADEC will track releases from ADOT Peger Road. Douglas Bauer
5/18/2006 Update or Other Action Received Shannon & Wilson's report titled "Groundwater Quality Assessment 2005-2006 Interim Report, ADOT&PF Peger Road Operations & Maintenance Facility, Fairbanks Alaska" dated May 2006. Douglas Bauer
7/7/2006 Update or Other Action Received Shannon & Wilson's report titled "Groundwater Quality Assessment 2005-2006 Comprehensive Report, ADOT&PF Peger Road Operations & Maintenance Facility, Fairbanks Alaska" dated June 2006. Douglas Bauer
7/17/2006 Update or Other Action Forward the recent Shannon and Wilson reports to Monica English, ADEC Project Manager for the Tesoro Station at the corner of Peger and Davis Roads. Requested that Monica review the reports within 30 days and gave her background information on ground water flow directions and possible influence of permafrost on flow direction. Douglas Bauer
7/19/2006 Update or Other Action Issued request for Release Investigation and Corrective Action to Qwik Three, Inc for the former Qwik Lube site on Peger Road. Response required within 30 days of receipt of certified letter. A 1997 site assessment was received in October 2004 only after repeated requests to the RP. ADEC response letter in October 2004 outline regulatory requirements: release investigation and corrective action. RP did not respond. With the receipt of the 2005-2006 Shannon & Wilson reports that identified Qwik Lube as a possible source for the benzene detected in the private residential well at 2525 17th Avenue, it became necessary to issue the June 19th letter. Douglas Bauer
7/19/2006 Update or Other Action Telephone message and email sent to Chris Bellovary with EPA Region 10 UIC program requesting any closure information about floor drains tied into domestic wastewater system at CJM Construction. There is no information in ADEC LUST file 102.26.190 concerning closure of floor drains. Shannon & Wilson's 2005-2006 reports identify CJM Construction site as a possible source to area-wide ground water contamination. Douglas Bauer
7/19/2006 Update or Other Action Issued request for information letter to M. Coats concerning closure of floor drains (injection wells) at the location of the former B&B Auto and Truck Repair. EPA conducted an inspection in 1988 and issued a compliance order in June 1990. No evidence in either EPA or ADEC files that the closure was completed. B&B may be contributing to the area-wide ground water contamination. Douglas Bauer
7/21/2006 Update or Other Action Issued request letter to current landowner of the former CJM Construction property requesting ground water sampling and any information about closure of floor drains that are tied into domestic wastewater system. Douglas Bauer
7/21/2006 Update or Other Action Sent a FPE/Roen Engineers September 1991 closure report for a home heating oil tank and floor drain disposal system for file 100.38.038 to Monica English. The site (Lot D-1, Block 18, EM Jones Subdivision) is adjacent to and immediately north of the Tesoro Station at the corner of Peger and Davis Roads. The report indicates that the floor drain disposal system piping is tied into the sewer system at the Tesoro Station. There were releases document associated with the floor drain disposal system on Lot D-1. Most soil samples were tested for TPH; only one sample was tested for VOCs and 1,1,1-TCA was detected at 0.14 ppm. Douglas Bauer
7/27/2006 Update or Other Action Submitted 2006 field season draft request for proposal to J. Frechione for funding approval. Douglas Bauer
8/3/2006 Update or Other Action Approved Shannon & Wilson's response to RFP for ADPS facility on Peger Road. Douglas Bauer
8/4/2006 Update or Other Action 2006 Fact Sheet published, mailed out, and posted to CS site summaries web-page. Douglas Bauer
8/9/2006 Update or Other Action Chris Bellovary and Peter Magloske with Region 10 visited the former Qwik Lube and CJM Construction properties. There is evidence of floor drains in both facilities and EPA has requested additional information concerning the floor drains, specifically where and how they terminate. Douglas Bauer
8/10/2006 Update or Other Action Telephone call from Peter Beardsly with NORTECH on behalf of CMI (former CJM Construction property) concerning floor drain closure and ground water sampling associated with leach field and former gasoline UST. Douglas Bauer
8/11/2006 Update or Other Action Telephone call from Peter Beardsly with NORTECH. According to CMI leach fields were abandoned and floor drains now tied into sewer system. NORTECH plans a dye check to confirm outlet of each floor drain. Former leach field was composed of two trenches with the exact locations unknown. Therefore three temporary monitoring wells will be installed: one near former LUST and one each near trenches. Douglas Bauer
8/22/2006 Meeting or Teleconference Held In office meeting with Bruce from Interior Realty concerning area-wide ground water contamination. Douglas Bauer
9/1/2006 Update or Other Action The City of Fairbanks informed ADEC via email that they want to install a “high volume” water supply well for non-drinking purposes at the City’s maintenance facility on Davis Road. The City’s facility is across Davis Road from the ADOT&PF Peger Road Maintenance facility and down gradient from the eastern TCE ground water plume (Cat House plume). The extent of the eastern TCE ground water plume has not been fully delineated and additional monitoring wells will be installed this fall. A meeting was proposed by ADEC. Douglas Bauer
11/2/2006 Update or Other Action LC changed to 14800780 per email from Dolly Holganza. Douglas Bauer
11/13/2006 Update or Other Action Telephone call with Peter Beardsly with NORTECH. NORTECH is investigating potential floor drains at former CJM Construction property (now CMI). Water samples from two temporary monitoring wells down gradient from former leach field and UST were non-detect. NORTECH discovered that floor drain is not tied into sewer as suspected but a buried culvert beneath the shop floor. Additional investigation is necessary. NORTECH will send an email to Chris Bellovary with EPA Region 10 with update on investigation. Douglas Bauer
6/22/2007 Meeting or Teleconference Held Meeting with Ann Farris, Jim Frechione, Doug Bauer with ADEC and Mark Lockwood and Jon Lindstrom with Shannon & Wilson. Reviewed Peger Road GIS program and latest ground water monitoring results. Douglas Bauer
8/2/2007 Update or Other Action PRP letter for former Qwik Lube site addressed to Mr. Bill Hagar returned with the notification that Mr. Hagar is deceased. Douglas Bauer
8/29/2007 Update or Other Action Changed PM from Doug Bauer toAnn Farris. Staff received a proposal for work during the FY2008. Reviewed and commented on the proposal: Work is to include: installation of new wells to further delineate the benzene plume to the northwest, ongoing monitoring of the TCE and benzene plume throughout the area, and vapor intrusion assessment work at the maintenance facility and operations and maintenance facility. Work is expected to begin as soon as possible in September. Ann Farris
2/5/2008 Update or Other Action One round of groundwater and air sampling has been completed. The benzene plume has been completely delineated, although slight concentrations of MTBE were discovered in the most downgradient wells. The vapor sampling at the O&M building did not indicate any significant intrusion or potential for such. The air sample collected in the vent system beneath the maintenance facility indicated elevated TCE levels. A second round of air sampling will be conducted in February and groundwater will be sampled again in April. Ann Farris
2/21/2008 Update or Other Action Staff met with Shannon and Wilson to discuss the next round of vapor intrustion sampling which is scheduled for February. We agreed to collect 1 sub-slab and 1 indoor sample in the old part of the materials lab building, which is closer to the hazmat storage area. One outdoor air sample will also be collected at the Mat. Lab. An indoor and 1 sub-slab at the O&M building will be collected. Ann Farris
2/22/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. Ann Farris
4/11/2008 Update or Other Action Spoke with Mike Schmetzer with City of Fairbanks Public Works. They are constructing a new building and will be removing a well on site. Shannon and Wilson will sample it before they remove it as it is at the downgradient edge of the plume from the Peger O&M building. S&W is in the process of doing the site-wide monitoring so this sample will be incorporated into those activities. The City was told that he should contact DEC spill response if they encounter any contamination during their contruction activities. Ann Farris
6/26/2008 Update or Other Action Received results of well MW-6 at the City site. All were below regulatory limits and the well was decommissioned in the summer of 2008. Ann Farris
11/12/2008 Update or Other Action Staff sent letters to homeowners regarding the results from the 2007/2008 drinking water well sampling events. Ann Farris
11/12/2008 Update or Other Action The following are highlights from the 2007-2008 ground water quality assessment: 1. The extent of the western ground water contaminant plume has been identified. The plume consists of TCE and benzene and extends from the ADOT&PF Peger Road facility, northerly to 17th Avenue and westerly to Kiana Street. 2. Only two residential groundwater wells, one drinking and one irrigation well, have detectable concentrations of benzene or TCE. The contaminant concentrations are relatively low, below public drinking water maximum contaminant levels (MCL), and seem to have a decreasing trend. 3. Vapor intrusion is under investigation at the Materials Lab and O&M building. The soil gas was elevated at the materials lab so further sampling will occur in FY09. A long-term ground water monitoring program will continue to analyze contaminant concentration trends and verify no further migration of the contamination. ADEC will coordinate investigative efforts with the Qwik Lube responsible parties (RPs) at the other site under investigation to determine if they are contributing to the area-wide ground water contamination. Ann Farris
4/9/2009 Update or Other Action DEC sent letters to homeowners whose wells were sampled in January 2009. There were four wells sampled and all were below the cleanup level for both TCE and benzene as well as the other analytes. The concentrations appear stable. Ann Farris
9/22/2009 Meeting or Teleconference Held Staff met with ADOT and Shannon and Wilson to discuss the Peger Road Facility. DOT collected passive soil gas samples around the Cat House and temporary summer laboratory that indicated elevated concentrations of TCE and TPH. There are three wells in the area that have increasing groundwater concentration trends that are not explicable from known sources. These “new” areas may be additional soil sources contributing to the groundwater plume. Additionally DOT has determined the drain in the cat house is uncapped. It was capped, but sometime in the last several the cap has been removed. This is the most likely source of the increased concentrations and DEC and DOT will work together to get the drain permanently closed under EPA’s Class V injection well program. Ann Farris
1/27/2012 Update or Other Action Project manager changed from Ann Farris to Jim Fish. Janice Wiegers
1/27/2012 Site Characterization Workplan Approved Workplan for drinking water well and monitoring well sampling, vapor intrusion evalaution, and additional site characterization approved. Jim Fish
2/14/2012 Update or Other Action Residential water well sampling indicated PCE concentration of 110 ug/L from shop sink at 2720 Davis Rd. Plan to resample (machine work was being conducted inside the building at the time of sampling). Jim Fish
2/28/2012 Update or Other Action Resampling of residential well at 2720 Davis Rd indictaed PCE of 4.66 ug/L from shop sink tap; called owners to inform of results. Jim Fish
7/10/2012 Site Visit Site visit to observe soil boring for additional source characterization. One soil boring moved from planned to location in attempt to delineate near eastern property boundary. Jim Fish
11/27/2012 Report or Workplan Review - Other Source Area Soil and Groundwater sampling results report received. Highest concentrations of TCE in soil and groundwater found to date at eastern property boundary. TCE, cDCE and 1,1-DCE, PCE and benzene found above soil cleanup levels; TCE,cDCE found above groundwater cleanup levels near eastern property. TCE, TCA,1,1,2-TCA, cDCE, and 1,1-DCE found above groundwater cleanup levels at Cat House and Seaonal Lab. Consultant recommended additional delineation of both soil and groundwater at eastern porperty boundary (including off site), and corrective action of TCE-contaminted soils. Jim Fish
2/5/2013 Spill Transferred from Prevention Preparedness and Response Program Spill transferred by PERP staff Ashley Adamczak. Spill no. 12300034205; spill date = 12/7/12; substance = solvent; quantity = unknown; source = underground injection well at cathouse building; PERP file no. 102.02.061. Mitzi Read
2/21/2013 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 79408 name: Cathouse Injection Well Mitzi Read
2/21/2013 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 79409 name: Eastern Boundary Mitzi Read
6/28/2013 Site Characterization Report Approved 2012 Groundwater Assessment Report and Vapor Intrusion Assessment Report FY12 approved. Recommend continued monitoring of select wells (some annually, some every 3 years, other every 6 years). SSD systems functioning in Materials Lab and Maintenance & Operations Building. Jim Fish
4/15/2014 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 79519 name: Materials Laboratory Jim Fish
4/15/2014 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 79518 name: Seasonal Testing Lab Jim Fish
10/31/2014 Update or Other Action Results of drinking water well sampling sent to residential well owners. Two locations will be sampled quarterly to establish seasonal COC concentrations. Jim Fish
11/5/2014 Site Visit Site visit to 2626 19th Avenue for passive indoor air & deep soil gas sampler colletion/swap-out. Also met resident/well-owner to discuss sampling results. Jim Fish
2/4/2015 Site Visit Site visit with contractor to conduct helium leak test with soil gas sampling equipment and vapor monitoring point, and to collect an active soil gas sample for analysis. Jim Fish
7/22/2015 Update or Other Action Quarterly drinking water well sampling (off-site) will continue throughout FY16. Jim Fish
7/24/2015 Site Visit Met with contractor for oversight of soil vapor monitoring point near eastern fence line of property (high soil & groundwater contamination discovered 2012). Jim Fish
8/27/2015 Update or Other Action Updated ADEC Program Manager on status of contamination issues at site & potential funding mechanism outside CIP Jim Fish
8/27/2015 Update or Other Action Updated ADEC Program Manager on status of contamination issues at site & potential funding mechanism outside CIP Jim Fish
9/3/2015 Meeting or Teleconference Held Met with ADOT Design staff & Environ Analyst for discussion of plans to construct Traffic Operation Center at the current M&O Building; discussed groundwater & soil gas contamination, and suggested installation of SSD & SVE system during construction. Jim Fish
2/1/2017 Update or Other Action Received Injection Closure Report submitted to USEPA UIC Program; pertaining to Cat House Injection Well. Activities of injection well decommissioning and closure being tracked separately under File 900.38.036 ADOT&PF Statewide Class V Injection Well General File. Jim Fish
3/3/2017 Update or Other Action Met with consultant/designer for SSD system installation regarding environmental work plan review (prepared by subcontractor). DEC will provide comments for soil handling and disposal consideration; anticipate coordination with EPA RCRA program. Site also tracked under 102.26.120. Jim Fish
4/20/2017 Meeting or Teleconference Held Meeting with ADOT staff to discuss recent site characterization and soil gas results, and plans for additional Vapor Intrusion evaluation. Jim Fish
5/9/2017 Update or Other Action Final sampling and analysis plan for M&O Building expansion received and approved today. Jim Fish
7/25/2017 Offsite Soil or Groundwater Disposal Approved Approx. 20 CU yd of DRO-contaminated soils approved for transport to OIT Jim Fish
7/26/2017 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 79408 Cathouse Injection Well. Jim Fish
7/26/2017 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 79409 Eastern Boundary. Jim Fish
9/22/2017 Update or Other Action Indoor air samples in Bridge Shop building SE Office were non-detect for TCE, but 5.2 ug/m3 in NW Office (Driller) where GAC filter is running - will recommend GAC change-out to ADOT staff. Jim Fish
10/23/2017 Update or Other Action All indoor air samples collected with Waterloo membrane samplers in the main Office Building during September were ND for TCE. A shallow soil gas point (VMP-13) outside the building was 40 ug/m3 for TCE (below 84 ug/m3 target level). Other soil gas points were ND. A soil gas point closer to Material Lab was 660 ug/m3 TCE (previous summa canister results yielded 1,900 ug.m3 in Sept, and 11,000 ug/m3 in November 2016). Jim Fish
11/27/2017 Update or Other Action Received copy of Approved wastewater discharge permit (No. 17-VSC-065) from GHU to ADOT; all discharge of petroleum products or other hazardous materials are prohibited; records required on handling and disposing antifreeze, used oil and solvents; oil-water separator prior to sewage system entrance. Jim Fish

Contaminant Information

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