| Action Date |
Action |
Description |
DEC Staff |
| 9/29/1998 |
Document, Report, or Work plan Review - other |
Reviewed the Shannon & Wilson, Inc. reports "Geotechnical Report and Limited Phase II Environmental Site Assessment, Municipality of Anchorage City Jail, Anchorage, Alaska" dated September 1998. The report review actually occurred on 9/11/08 by staff Petrik who entered the following synopsis but the action was inserted for this date to maintain site work chronology. The report presented the results of subsurface explorations, lab testing, and engineering studies conducted in August 1998 to evaluate the subsurface conditions for foundation design of the proposed new city jail. Detections of DRO and RRO in soil were present in soil borings B-10 and B-11 near the south-central and southeastern extremes of the subject property but were below cleanup levels. |
Bill Petrik |
| 1/20/2000 |
Document, Report, or Work plan Review - other |
Reviewed the Shannon & Wilson, Inc. "UST Closure Assessment and Excavation Monitoring, 1400 East Third Avenue, Anchorage, Alaska" dated December 1999, received 1/20/00. The report review actually occurred on 9/10/08 by staff Petrik who entered the following synopsis but the action was inserted for this date to maintain site work chronology.
Removal of an unregulated 1,000 gallon oil and water separator (OWS) UST and the associated subsurface components was completed on 8/27/99. Additional soil and piping were removed on August 28 and 30, and 9/7/99. The OWS system consisted of the UST, a sand trap, three floor drain systems, and associated piping. The UST was owned and operated by the MOA and was installed in 1993 to replace an OWS removed from the general vicinity in 1993. Soil samples were taken during the removal activities and submitted for laboratory analysis of GRO, DRO, RRO, BTEX, PCBs, RCRA Metals, PAHs, and VOCs. All sampling results were below 18 AAC 75.341 Method 2 cleanup levels except for one Stockpile 3 sample and numerous RCRA metal sampling results. Stockpile 3 which contained soil excavated from the sand trap and potentially impacted soil removed from two piping locations was taken to Alaska Soil Recycling for thermal treatment as one stockpile sample was 1,490 mg/kg DRO. Eight of 19 arsenic samples from the excavation, piping, and stockpiles exceeded the 2 mg/kg cleanup level. The arsenic exceedances ranged from 2.06 mg/kg to 3.43 mg/kg. One of 19 chromium samples exceeded the 26 mg/kg cleanup level. The chromium exceedance value was 26.4 mg/kg. The report concluded that the elevated sampling results were within the range of naturally occurring background concentrations for the Anchorage Area.
|
Bill Petrik |
| 5/16/2000 |
Offsite Soil or Groundwater Disposal Approved |
In response to review of the Shannon & Wison, Inc. "Request to Transport Impacted Soil, 1400 East Third Avenue, Anchorage Alaska" dated 5/16/00, the CSP granted approval to transport 1,200 cubic yards of contaminated soil to Anchorage Soil Recycling. This material was generated during the excavation of buried drums encountered during construction of the new city jail facility. |
Lynne Bush |
| 6/7/2000 |
Update or Other Action |
Update letter to the MOA from ADEC Staff regarding site status. |
Lynne Bush |
| 6/20/2000 |
Offsite Soil or Groundwater Disposal Approved |
In response to review of the Shannon & Wilson, Inc. "Request to Transport Impacted Soil, 1500 East Third Avenue, Anchorage Alaska" dated 6/16/00, the CSP granted approval to transport 1,100 cubic yards of contaminated soil to Alaska Soil Recycling. After removal of the 1,200 cubic yards of stockpiled soil in a containment area resulting from excavation and removal of contaminated soil from buried drums along a former storm drain, this material was generated during the excavation of contaminated surface soil that was observed where the prior containmnet cell of 1,200 c.y. was stored. |
Lynne Bush |
| 8/8/2000 |
Document, Report, or Work plan Review - other |
Reviewed a copy of the Shannon & Wilson, Inc. "Buried Drum Cleanup Activities, 1500 East Third Avenue, Anchorage, Alaska" dated July 2000 and received on 8/8/00. The report review actually occurred on 9/3/08 but the action was inserted for this date to maintain site work chronology.
In May 2000, approximately 70 drums and 1,000 cubic yards of impacted soil were removed in an effort to clean up the site to applicable ADEC cleanup criteria during construction of the New City Jail. Most of the drums were empty but approximately 28 of them contained varying amounts of paint resin, asphalt, water and/or oil. The contents of the drums were characterized and disposed of by Philips along with the empty drums. GW was encountered at about 13 feet below ground surface. Between May 2 and 5, 2000, approximately 1,000 c.y. of potentially impacted soil were excavated and stockpiled in the three containment cells northwest of the drum excavation. The final excavation dimensions were approximately 50 feet by 72 feet with a maximum depth of about 21 feet. With ADEC approval, the excavation was backfilled with clean imported fill material on 5/12/2000.
On May 17, 2000, a crushed and leaking 55-gallon drum was observed in an ~10 cubic yard stockpile southeast of the main drum excavation. The drum appeared to contain asphalt and oil. The stockpile was disposed of at ASR with the main drum excavation soil. The drum was disposed of by Philips. An additional drum was encountered on 5/31/00 during excavation for a building footer. The drum appeared full of asphalt and had several holes in it. ~80 c.y. of potentially impacted soil was excavated from the vicinity of the single drum and placed in Cell No. 4.
A temporary monitoring well was placed in the drum excavation pit on 5/16/00 and sampled on 5/17/00. Static GW was measured at 12.48 feet bgs. The GW sampling results were ND for GRO, DRO, RRO, BTEX, and HVOs.
Materials disposed of related to this work included 200 tons of creosote timbers, 43,400 gallons of impacted water, 860 gallons of sediment, approximately 1,000 c.y. of impacted soil, and approximately 70 drums. All these materials were properly disposed of.
Remaining in situ soil and groundwater appear to be below cleanup levels. The report recommended installation of a monitoring well north of the main drum excavation. |
Bill Petrik |
| 10/6/2000 |
Update or Other Action |
Received schedule of Future Activities at New Jail Site. |
Lynne Bush |
| 10/16/2000 |
Site Added to Database |
Waste oil, fuel spills, solvents, paints, and asphaltic waste. |
Former Staff |
| 10/16/2000 |
Site Ranked Using the AHRM |
Initial ranking. |
Lynne Bush |
| 11/7/2000 |
Update or Other Action |
Received the Shannon & Wilson, Inc. "Diesel Excavation Assessment and Cleanup Activities report", dated November 2000.
The report review actually occurred on 9/3/08 by staff Petrik who entered the following synopsis but the action was inserted for this date to maintain site work chronology.
On 5/18/00, following disposal of the stockpiled soil and removal of a containment cell, approximately 1,300 c.y. of impacted soil was removed from the vicinity associated with surface staining that was observed 5/2/00 during the construction of a long-term storage cell related to the drum excavation. Shallow contamination was suspected road oiling and deeper contamination was suspected diesel contamination as indicated by field screening. Due to the size of the area impacted and to avoid impacting the ongoing construction activities, additional soil was not removed and the excavation was backfilled with clean imported material. Potentially impacted material remains in the southern, western, and northwestern sidewalls. Analytical samples were taken and submitted to a laboratory for analysis of results for GRO, DRO, RRO, BTEX, RCRA Metal, and halogenated volatile organics (HVOs). The only exceedances of cleanup levels for any of these analytes occurred in for DRO at 292 mg/kg in Sample D5 taken in the south excavation sidewall at 2 feet bgs and for cis-1,2-dichloroethene in Sample D3 taken in the west excavation sidewall at 11 feet bgs. Potentially impacted groundwater, observed at approximately 15’ bgs, was observed in the base of the excavation. S&W recommended a phased release investigation be conducted to delineate the horizontal and vertical extent of soil and groundwater contamination. |
Scott Pexton |
| 11/9/2000 |
Site Visit |
Site visit with Stafford Glashan of Shannon and Wilson. |
Scott Pexton |
| 2/26/2001 |
Meeting or Teleconference Held |
ADEC meeting with Stafford Glashan of Shannon and Wilson regarding workplan. ADEC decided to change the implementation schedule. Monitoring well installation will be delayed until the asphalt finish grade is completed. Expectation June 2001. |
David Pikul |
| 3/6/2001 |
Site Characterization Workplan Approved |
In response to review of the Shannon & Wilson, Inc. "Work Plan for Soil and Groundwater Characterization, New City Jail, 1500 East Third Avenue, Anchorage Alaska, File No. CS 69.59" dated and received by the CSP on 1/24/01, the CSP granted approval to the Work Plan with the condition that implementation of the work be delayed until the final paved surface is installed which is scheduled for June 2001. The CSP is concerned about ensuring the future integrity of the proposed monitoring wells and to address comments regarding well locations. |
David Pikul |
| 4/10/2001 |
Update or Other Action |
LC 14892160 established. |
David Pikul |
| 6/7/2001 |
Site Characterization Report Approved |
ADEC received and reviewed the release investigation report. Groundwater levels are below cleanup, monitoring will continue to develop data trends. |
David Pikul |
| 8/2/2001 |
Site Visit |
Site visit to the Jail on 8-2-01 in response to a call reporting that they encountered contamination. Turned out to be old asphalt with smell of DRO. It's all over the site area from the old parking lot and it will not be exposed to surface conditions. |
David Pikul |
| 12/12/2001 |
Offsite Soil or Groundwater Disposal Approved |
The CSP reviewed the analytical data of the purge water samples collected from the three 55-gallon drums containing monitoring well purge water generated during the development and sampling of the monitoring wells installed this fall/winter at the MOA New City Jail locateda t 1400-1500 East 3rd Avenue. ADEC has no objection to the proposed transport of the purge water to Energy Recovery Services, Inc., an ADEC approved facility, for treatment. |
David Pikul |
| 2/28/2002 |
Site Characterization Report Approved |
Completed review of Shannon & Wilson, Inc. report "Soil and Groundwater Characterization, 1500 East Third Avenue, Anchorage, Alaska" dated December 2001, received 12/21/01. Six soil borings were advanced on 11/19-20/01, Borings B1, B2, and MW1 through MW4. Borings MW1 through MW4 were completed as monitoring wells. Borings B1, B2, and MW1 through MW3 were advanced in the vicinity of the former diesel excavation. Boring MW4 was placed north of the former drum excavation. The GW flow in the vicinity of the former diesel excavation is west-northwest. Soil samples from the borings and groundwater samples from the monitoring wells were submitted for laboratory analysis of GRO, DRO, RRO, BTEX and VOCs. MW3 was advanced in the imported fill material and the soil was not sampled. Samples from MW4 were screened but no samples were submitted for analysis. The 18 AAC 75.341 Method 2 cleanup level for GRO was exceeded in Boring 2, exceeded for DRO in both Borings and MW2, exceeded for cis-1,2-Dichloroethene (cis-1,2-DCE) in Boring 2 only, and exceeded for trichloroethene (TCE) in Borings, MW1 and MW2. The only exceedance of cleanup levels in groundwater sampling results was for vinyl chloride in MW2 and TCE in MW1, MW2, and MW3. |
David Pikul |
| 3/4/2002 |
Update or Other Action |
Releasing remaining encumbrance for NTP#1820121051. |
David Pikul |
| 6/3/2002 |
Update or Other Action |
ADEC amended the scope of work, requested Shannon & Wilson to mobe to the site and collect groundwater samples from the four (4) on-site monitoring wells installed fall 2001, submit the samples to an appropriate laboratory for analysis. Analytical methods to include AK 101, AK 102/103 and SW846-8260B. Groundwater elevations should be obtained and groundwater flow pattern depicted on a site figure. A brief letter report to include completed site activities, tabulated data, laboratory data and site figure showing groundwater flow. |
David Pikul |
| 6/28/2002 |
Document, Report, or Work plan Review - other |
Reviewed a copy of the Shannon & Wilson, "Groundwater Sampling, New City Jail, 1500 East Third Avenue, Anchorage, Alaska" dated June 28, 2002. The report review actually occurred on 9/5/08 by staff Petrik who entered the following synopsis but the action was inserted for this date to maintain site work chronology.
Monitoring wells MW1 through MW4 were sampled for GRO, DRO, RRO, BTEX, and VOCs on 6/12/02. The only sample results above cleanup levels were for trichloroethene (TCE) in MW1, MW2, and MW3. The concentration of TCE in these three monitoring wells has decreased since the last sampling, 11/26/01. The groundwater flow direction continues to be west-northwest. The report recommended continued sampling of these three wells for vinyl chloride, TCE, and cis-1,2-Dichloroethene (cis-1,2-DCE). |
Bill Petrik |
| 9/26/2003 |
Update or Other Action |
RFP and NTP approval sent to management to provide continued groundwater monitoring at the Municipality of Anchorage (MOA) Jail site. |
David Pikul |
| 10/30/2003 |
Site Characterization Workplan Approved |
DEC has completed review of the work plan for Groundwater Monitoring, New City Jail, 1500 East Third Avenue, Anchorage, Alaska, File number CS 69.59, dated October 20, 2003. The work plan is approved. |
David Pikul |
| 12/15/2003 |
Document, Report, or Work plan Review - other |
Reviewed the Shannon & Wilson "Groundwater Sampling, New City Jail, 1500 East Third Avenue, Anchorage, Alaska; Reckey 2000210112301" dated December 11, 2003, received 12/15/03. The report review actually occurred on 9/5/08 by staff Petrik who entered the following synopsis but the action was inserted for this date to maintain site work chronology.
Monitoring wells MW1 through MW4 were sampled for GRO, DRO, RRO, BTEX, and VOCs on 11/3/03. The only sample results above cleanup levels were for TCE in MW1, MW2, and MW3 and vinyl chloride in MW2. The concentration of TCE in these three monitoring wells was very similar to the results of the last sampling, 6/12/02. The groundwater flow direction continues to be west-northwest. The report concluded that the identification of both TCE and degradation products (cis-1,2-DCE and vinyl chloride) in samples collected for MW1, MW2, and MW3 suggests that natural attenuation of TCE is occurring and recommended continued sampling of these three wells for vinyl chloride, TCE, and cis-1,2-DCE. |
Bill Petrik |
| 3/17/2004 |
Update or Other Action |
File number changed from CS69.59 to 2100.30.235. |
Sarah Cunningham |
| 6/17/2004 |
Site Characterization Report Approved |
DEC completed review of the November 2003 groundwater monitoring report. |
David Pikul |
| 5/14/2008 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed. |
Bill Petrik |
| 10/2/2008 |
Potentially Responsible Party/State Interest Letter |
Mailed a Potentially Responsible Party (PRP) Letter via Certified Mail, Return Receipt Requested to Kurt Steinert of the Municipality of Anchorage. |
Bill Petrik |
| 3/3/2009 |
Update or Other Action |
After file review, this site needs to be maintained in open status. Soil and groundwater remains above ADEC cleanup levels. Further evaluation is warranted. |
Grant Lidren |
| 6/29/2012 |
Update or Other Action |
DEC sent a Work Plan Request for site files named MOA - 4th & Post Vehicle Maintenance USTs (ADEC File No. 2100.26.312) and New City Jail (ADEC File No. 2100.38.235), located at 1400-1500 East 3rd Avenue, Anchorage |
Katrina Chambon |
| 2/22/2013 |
Site Characterization Workplan Approved |
The work plan proposes to conduct groundwater sampling, laboratory testing, and decommissioning of monitoring well MW-4. This work plan is approved with the following condition:
Please provide three (3) working days advance notice when planning to do work, to give us an opportunity to be on site to inspect.
|
Katrina Chambon |
| 9/17/2013 |
Site Characterization Report Approved |
The groundwater monitoring report was received at our Anchorage office by email on September 10, 2013. The report presents the sampling results from the groundwater sampling event that occurred on May 30, 2013.
While periodic groundwater monitoring has been on-going since 2001, there is inadequate information regarding the contaminant plume in the immediate area. The maximum trichloroethylene concentration was 0.0314 mg/L and the maximum vinyl chloride concentration was 0.00270 mg/L. There was a slight decrease since the last sampling event that occurred in 2003; however, the plume has not been delineated.
Based on a review of the report and file, the following information needs to occur before this site can be considered for closure:
1.The nature and extent of soil and groundwater contamination must be adequately delineated.
CSP will close the site associated with the underground storage tanks (UST) that were removed, file no. 2100.26.312.
|
Katrina Chambon |
| 11/7/2013 |
Site Characterization Workplan Approved |
The work plan proposes to complete one borehole and complete it as groundwater monitoring wells. This work plan is approved. |
Katrina Chambon |
| 1/21/2014 |
Offsite Soil or Groundwater Disposal Approved |
|
Katrina Chambon |
| 1/23/2015 |
Document, Report, or Work plan Review - other |
MW5 was installed in November 2013. Groundwater flow direction was west northwest as in previous sampling events. A soil sample and groundwater sample were collected. Soil was analyzed for GRO, DRO, and VOC and groundwater was analyzed for VOC. In the soil sample, DRO was detected as an estimated quantity well below cleanup levels. 1,1-Dichloroethane and cis-1,2-Dichloroethene were detected in concentrations orders of magnitude below cleanup levels. |
Lisa Krebs-Barsis |
| 12/1/2015 |
Document, Report, or Work plan Review - other |
The monitoring wells MW1, MW2, and MW3 were decommissioned on July 22, 2015. |
Lisa Krebs-Barsis |
| 2/18/2016 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 74281 Diesel Excavation Area. |
Lisa Krebs-Barsis |
