| Action Date |
Action |
Description |
DEC Staff |
| 10/2/1996 |
Site Added to Database |
|
Former Staff |
| 10/2/1996 |
Leaking Underground Storage Tank Release Confirmed - Petroleum |
LUST Site created in CSP for source area ID 78050 |
Former Staff |
| 10/2/1996 |
Underground Storage Tank Site Characterization or Assessment |
Gasoline/Diesel/Used Oil contamination found during facility upgrade in 1996 with up to non-detect (<1.0 mg/kg) benzene, 5,000 mg/kg GRO, and 726 mg/kg DRO at piping/dispenser and up to 6,880 mg/kg DRO at the former used oil tank. |
Robert Weimer |
| 10/15/1996 |
Offsite Soil or Groundwater Disposal Approved |
25 cubic yards of contaminated soil generated during the facility upgrade is to go to ASR for thermal treatment. |
Robert Weimer |
| 11/20/1997 |
Update or Other Action |
ADEC sends Notification of Intent to Cost Recover Letter to Current Owner: TEXACO REFINING & MARKETING INC. |
Former Staff |
| 3/25/1998 |
Leaking Underground Storage Tank Cleanup Initiated - Petroleum |
|
Former Staff |
| 1/14/2000 |
Release Investigation |
ADEC approved release investigation workplan to install monitoring wells and soil borings to help define the extent of the soil and groundwater contamination at the site. |
Former Staff |
| 7/26/2000 |
Update or Other Action |
ADEC requests corrective action plan and results of release investigation. |
Robert Weimer |
| 9/17/2001 |
Offsite Soil or Groundwater Disposal Approved |
Three drums of contaminated drill cuttings was approve for transport to ASR for thermal treatment. This soil was generated during the 2000 release investigation work. |
Robert Weimer |
| 3/3/2004 |
Update or Other Action |
Approved reduction in groundwater monitoring. |
Robert Weimer |
| 6/8/2004 |
Document, Report, or Work plan Review - other |
Reviewed quarterly groundwater monitoring report. Up to 5.7 ug/l benzene and 260 ug/l GRO. Contaminant concentrations appear to be stable. |
Robert Weimer |
| 9/29/2004 |
Document, Report, or Work plan Review - other |
Reviewed quarterly groundwater monitoring report. Up to 2.5 ug/l benzene and 190 ug/l GRO. Contaminant concentrations appear to be decreasing. |
Robert Weimer |
| 11/19/2004 |
Document, Report, or Work plan Review - other |
Reviewed quarterly groundwater monitoring report for 9/1/04. Up to 3.1 ug/l benzene and 730 ug/l GRO. Contaminant concentrations appear to be stable. |
Robert Weimer |
| 1/25/2005 |
Document, Report, or Work plan Review - other |
Reviewed quarterly groundwater monitoring report for 12/1/04. Up to 3.0 ug/l benzene and 310 ug/l GRO. Contaminant concentrations appear to be stable. Groundwater flows to the southwest. |
Robert Weimer |
| 5/11/2005 |
Document, Report, or Work plan Review - other |
Reviewed quarterly groundwater monitoring report for 3/8/05. Up to 6.0 ug/l benzene. Contaminant concentrations appear to be stable. Groundwater flows to the southwest. |
Robert Weimer |
| 9/21/2005 |
Document, Report, or Work plan Review - other |
Reviewed quarterly groundwater monitoring report for 6/17/05. Up to 3.3 ug/l benzene, 0.19 mg/l GRO, and 0.9 mg/l RRO in groundwater. Contaminant concentrations appear to be stable. Groundwater flows to the south by southwest and is about 13 to 14 feet below ground surface. |
Robert Weimer |
| 12/8/2005 |
Document, Report, or Work plan Review - other |
Reviewed quarterly groundwater monitoring report for 9/24/05. Up to 2.4 ug/l benzene, 0.56 mg/l GRO, and 0.9 mg/l RRO in groundwater. Contaminant concentrations appear to be stable. Groundwater flows to the south and is about 12 to 14 feet below ground surface. |
Robert Weimer |
| 1/19/2006 |
Document, Report, or Work plan Review - other |
Reviewed quarterly groundwater monitoring report for 12/3/05. Up to 4.95 ug/l benzene, 0.219 mg/l GRO, 0.521 mg/l DRO, and 0.625 mg/l RRO in groundwater. Contaminant concentrations appear to be stable. Groundwater flows to the southwest and is about 12 to 14 feet below ground surface. |
Robert Weimer |
| 5/26/2006 |
Document, Report, or Work plan Review - other |
Reviewed quarterly groundwater monitoring report for 3/24/06. Up to 2.36 ug/l benzene, 0.219 mg/l GRO, 0.521 mg/l DRO, and 0.625 mg/l RRO in groundwater. Contaminant concentrations appear to be stable. Groundwater flows to the southwest and is about 14 to 15 feet below ground surface. There were some QA/QC problems found with the sampling data. |
Robert Weimer |
| 11/7/2006 |
Document, Report, or Work plan Review - other |
Reviewed quarterly groundwater monitoring report for 6/20/06. Up to 2.14 ug/l benzene, non-detect (< 0.050 mg/l) GRO, non-detect (< 0.097 mg/l) DRO, and non-detect (< 0.728 mg/l) RRO in groundwater. Contaminant concentrations appear to be decreasing. Groundwater flows to the southwest and is about 13 to 15 feet below ground surface. There were some QA/QC problems found with the sampling data so it is considered biased low. |
Robert Weimer |
| 4/9/2007 |
Document, Report, or Work plan Review - other |
Reviewed groundwater monitoring report for 12/11/06. Up to 2.3 ug/l benzene, non-detect (< 0.23 mg/l) GRO, non-detect (< 0.417 mg/l) DRO, and non-detect (< 0.417 mg/l) RRO in groundwater. Benzene contaminant concentrations appear to be increasing. Groundwater flows to the south and is about 13.4 to 14.9 feet below ground surface. EDB was non-detect (<0.5 ug/l), but the detection limit did not meet cleanup levels (0.05 ug/l). |
Robert Weimer |
| 5/4/2007 |
Update or Other Action |
ADEC approves request for no-purge groundwater sampling for this site. |
Robert Weimer |
| 10/29/2007 |
Document, Report, or Work plan Review - other |
Reviewed groundwater monitoring report for 3/27/07. Up to non-detect (<0.5 ug/l) benzene, 0.127 mg/l GRO, non-detect (< 0.417 mg/l) DRO, and non-detect (< 0.417 mg/l) RRO in groundwater. Contaminant concentrations appear to be decreasing in the two monitoring wells sampled. Groundwater flows to the southwest and is about 14.0 to 15.55 feet below ground surface. |
Robert Weimer |
| 3/12/2008 |
Update or Other Action |
ADEC approves reduction in groundwater monitoring. Sampling reduced to just semi-annual for BTEX in monitoring wells MW-D and MW-E. |
Robert Weimer |
| 3/12/2008 |
Document, Report, or Work plan Review - other |
June 20, 2007 groundwater monitoring event. Up to 0.743 ug/l benzene, 0.145 mg/l GRO, non-detect (< 0.417 mg/l) DRO, and non-detect (< 0.391 mg/l) RRO in groundwater. Contaminant concentrations decreased in the four monitoring wells sampled. Groundwater flows to the southwest and is about 14.3 to 15.35 feet below ground surface. |
Robert Weimer |
| 3/18/2008 |
Document, Report, or Work plan Review - other |
September 24, 2007 groundwater monitoring event. Up to non-detect (<4.22 ug/l) benzene, 0.341 mg/l GRO, non-detect (< 0.417 mg/l) DRO, and non-detect (< 0.5 mg/l) RRO in groundwater. Contaminant concentrations increased in the two of the four monitoring wells sampled. Groundwater flows to the southwest and is about 13.6 to 15.1 feet below ground surface. |
Robert Weimer |
| 5/23/2008 |
Document, Report, or Work plan Review - other |
Site ranked on the new Exposure Tracking Model (ETM). The ETM is a new site ranking system that looks at, based on available data, the potential exposure pathways for the contamination remaining at the site. |
Robert Weimer |
| 5/23/2008 |
Exposure Tracking Model Ranking |
Intitial Ranking Complete for Source Area: 78050 (Autogenerated Action) |
|
| 6/9/2008 |
Document, Report, or Work plan Review - other |
February 27, 2008 Phase II assessment report. On January 23, 2008 seven soil borings were drilled and sampled at the site. Two of the boring also had water samples collected from them. Up to non-detect (<0.10 mg/kg) benzene, non-detect (<3.55 mg/kg) GRO, non-detect (<13.2 mg/kg) DRO, non-detect (<26.3 mg/kg) RRO, and 5.52 mg/kg lead in the soil samples collected. Up to 11.0 ug/l benzene, 0.086 mg/l GRO, non-detect (<0.5 mg/l) DRO, non-detect (<0.6 mg/l) RRO, and 1,290 ug/l lead in the groundwater. The soil borings were not placed in areas of where past soil contamination has been identified. |
Robert Weimer |
| 7/30/2008 |
Document, Report, or Work plan Review - other |
December 10, 2007 groundwater monitoring event. Up to 4.22 ug/l benzene, 0.250 mg/l GRO, non-detect (< 0.417 mg/l) DRO, and non-detect (< 0.5 mg/l) RRO in groundwater. Contaminant concentrations decreased from the previous monitoring event. Groundwater flows to the south and was 13.56 to 15.09 feet below ground surface. |
Robert Weimer |
| 11/5/2008 |
Document, Report, or Work plan Review - other |
March 12, 2008 groundwater monitoring event. Up to 2.31 ug/l benzene and 0.152 mg/l GRO in groundwater in the one monitoring well sampled. Contaminant concentrations decreased from the previous sampling event. Groundwater flows to the south and was 13.98 to 15.50 feet below ground surface. |
Robert Weimer |
| 1/7/2009 |
Document, Report, or Work plan Review - other |
September 19, 2008 groundwater monitoring event. Up to 1.6 ug/l benzene in groundwater in the three monitoring wells sampled. Contaminant concentrations decreased from the previous sampling event. Groundwater flows to the south and was 13.44 to 14.92 feet below ground surface. |
Robert Weimer |
| 7/30/2009 |
Document, Report, or Work plan Review - other |
March 24, 2009 groundwater monitoring event. Up to 1.6 ug/l benzene and non-detect (<1.0 ug/l) MTBE in groundwater in the two monitoring wells sampled. Two other monitoring wells (MW-A and MW-C) were not accessible. Contaminant concentrations decreased from the previous sampling event. Groundwater flows to the south and was 14.04 to 15.57 feet below ground surface. |
Robert Weimer |
| 11/30/2009 |
Document, Report, or Work plan Review - other |
September 11, 2009 groundwater monitoring event. Up to 1.6 ug/l benzene and 0.1 mg/l GRO in groundwater in the two monitoring wells sampled. Two other monitoring wells (MW-A and MW-C) were not accessible. Contaminant concentrations decreased from the previous sampling event. Groundwater flows to the south and was 13.76 to 15.27 feet below ground surface. |
Robert Weimer |
| 12/1/2009 |
Update or Other Action |
Discussed with RPs consultant the need for two additional monitoring wells at the location of TKSB-2 and TKSB-7, where groundwater contamination was identified during Phase II work at the site on January 2008. Need soil samples collected at soil water interface and groundwater samples for BTEX and lead. |
Robert Weimer |
| 12/2/2009 |
Update or Other Action |
ADEC letter requesting submital of a workplan by January 15, 2010 for the installation of two additional monitoring wells at the location of TKSB-2 and TKSB-7, where groundwater contamination was identified during Phase II work at the site on January 2008. The letter requests that soil samples be collected at soil water interface and groundwater samples be amnalyzed for BTEX and lead. |
Robert Weimer |
| 3/23/2010 |
Document, Report, or Work plan Review - other |
DEC letter conditionally approving workplan to install 2 additional monitoring wells and to collect soil and groundwater samples. |
Robert Weimer |
| 5/26/2010 |
Document, Report, or Work plan Review - other |
March 17, 2010 groundwater monitoring event. Up to 18 ug/l benzene and non-detect (<0.1 mg/l) GRO in groundwater in the two monitoring wells sampled. Two other monitoring wells (MW-A and MW-C) were not accessible. Contaminant concentrations increased from the previous sampling event. Groundwater flows to the south by southeast and was 14.29 to 15.81 feet below ground surface. |
Robert Weimer |
| 1/10/2011 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 78050 1996 UST contamination based on benzene groundwater contamination. |
Robert Weimer |
| 9/1/2011 |
Document, Report, or Work plan Review - other |
September 22, 2010 groundwater monitoring event. Up to 2.7 ug/l benzene, non-detect (<5.0 ug/l) lead, and non-detect (<0.1 mg/l) GRO in groundwater in the 4 monitoring wells sampled. Contaminant concentrations decreased from the previous sampling event. Groundwater flows to the northwest and was 13.20 to 15.21 feet below ground surface. |
Robert Weimer |
| 11/21/2011 |
Offsite Soil or Groundwater Disposal Approved |
ADEC approves request to treat/dispose of contaminated purge water. |
Robert Weimer |
| 1/18/2012 |
Document, Report, or Work plan Review - other |
April 15, 2011 groundwater monitoring event. Up to non-detect (<1.0 ug/l) benzene and non-detect (<0.1 mg/l) GRO in groundwater in the 2 monitoring wells sampled. Contaminant concentrations decreased from the previous sampling event. Groundwater flows to the southwest and was 14.18 to 15.67 feet below ground surface. |
Robert Weimer |
| 7/3/2012 |
Document, Report, or Work plan Review - other |
Reviewed monitoring well installation report. On May 2010 two additional monitoring wells (MW-2 and MW-3) were installed. Soil samples were collected at 1.5 and 14 feet below ground surface. Up to 0.02 mg/kg benzene (0.025 mg/kg cleanup level) and 20 mg/kg total lead (400 mg/kg cleanup level) in the soil samples collected. |
Robert Weimer |
| 9/12/2012 |
Document, Report, or Work plan Review - other |
The September 6, 2012 work plan for collecting confirmation soil samples to assess the current soil contamination concentrations at this site is approved with the following modifications:
1. Two soil boring are to be sampled in the waste oil tank area, one at WO-1 and one at WO-2. They each are to include a sample at 8 feet below ground surface in place of the 5 foot sample listed in the table (Section 5.1).
2. There needs to be a qualified person in the field. Specify who the qualified person will be in the field.
3. The soil/water interface needs to be sampled in each soil boring. This sample may be substituted for one of the sample depths listed in the table (Section 5.1) within two feet of the soil/water interface depth.
4. In any boring if a sample depth appears more contaminated by field reading/observations than the depth specified in the table in Section 5.1 then that interval will need to have an analytical sample collected at that depth. This sample may be substituted for one of the sample depths within two feet of the depth listed in the table (Section 5.1).
|
Robert Weimer |
| 9/12/2012 |
Conceptual Site Model Submitted |
The CSM identified subsurface soil and groundwater exposure routes. |
Robert Weimer |
| 9/17/2012 |
Document, Report, or Work plan Review - other |
October 12, 2011 groundwater monitoring event. Up to 1.01 ug/l benzene, non-detect (<1.0 ug/l) MTBE, and non-detect (<0.1 mg/l) GRO in groundwater in the 3 monitoring wells sampled. Contaminant concentrations increased from the previous sampling event in 1 monitoring well. Groundwater flows to the southwest and was 13 to 15 feet below ground surface. |
Robert Weimer |
| 9/27/2012 |
Document, Report, or Work plan Review - other |
On September 27, 2012 18 soil samples were collected from 5 soil borings to help assess the soil contamination concentrations at the site. Up to 17 mg/kg GRO, 1,200 mg/kg DRO, 5,900 mg/kg RRO, and 0.021 mg/kg benzene in the soil samples collected. PAHs were detected at the used oil tank borings but are below 2016 cleanup levels. Contamination above DRO soil cleanup levels a 8 feet (1,200 mg/kg) and 15 feet (620 mg/kg) below ground surface in soil boring SB-5 at the location of the former used oil tank system to the west of the service station building. Depth to groundwater is 14 to 15 feet below ground surface at the SB-5 location. |
Robert Weimer |
| 10/9/2012 |
Offsite Soil or Groundwater Disposal Approved |
DEC approves request to store drums of drill cuttings in a secure area at 4409 Lake Otis. |
Robert Weimer |
| 10/30/2012 |
Offsite Soil or Groundwater Disposal Approved |
ADEC approves request to treat/dispose of contaminated decon water and disposal of 4 drums of contaminated drill cuttings. |
Robert Weimer |
| 2/12/2013 |
Document, Report, or Work plan Review - other |
March 29, 2012 and April 24, 2012 groundwater monitoring event. Up to non-detect (<1.0 ug/l) benzene, and non-detect (<0.1 mg/l) GRO in groundwater in the 4 monitoring wells sampled. Contaminant concentrations decreased from the previous sampling event in one monitoring well. One monitoring well (MW-F) was not sampled because of ice and sediment over the well cap. Groundwater flows to the southwest and was 14 to 15 feet below ground surface. Samples were collected using hydrasleeves with no purge sampling. |
Robert Weimer |
| 2/13/2013 |
Offsite Soil or Groundwater Disposal Approved |
ADEC approves request to treat/dispose of contaminated decon water and disposal of 4 drums of contaminated drill cuttings. |
Robert Weimer |
| 3/22/2013 |
Update or Other Action |
DEC request that all sites where there has been no purge groundwater sampling conducted during the last year, that for the next sampling event that they do both no purge then purge sampling from each monitoring well, so we evaluate on a site specific basis whether no purge sampling has provided comparable data. The post purge well sampling for VOCs would need to be conducted via hydrasleeve, bladder pump, or in well pump. Non VOC sampling can be collected with a bailer or peristaltic pump (in addition to the VOC methods) if desired. The specific sampling methods will need to be documented in the report and included field notes.
If there is not enough time to do this adjustment for the planned sample event of March 26-April 4, then DEC requests that it be done on the following event.
In the case of this site there needs to at least one more monitoring event by both no-purge and purge methods. We are requesting that all site monitoring wells, including the ones that have not been sampled recently be sampled and analyzed for BTEX, GRO, DRO, RRO, and dissolved lead.
On another note we need complete copies of the field notes for the March 12, 2013 Site Investigation report work.
|
Robert Weimer |
| 3/26/2013 |
Update or Other Action |
Update from RPs consultant they will conduct the next monitoring event in the summer of 2013. That sampling event will include no purge and purge sampling in every monitoring well. |
Robert Weimer |
| 4/5/2013 |
Document, Report, or Work plan Review - other |
June 12, 2012 groundwater monitoring event. Up to 1.47 ug/l benzene, and non-detect (<0.1 mg/l) GRO in groundwater in the 4 monitoring wells sampled. Contaminant concentrations increased from the previous sampling event in 1 monitoring well. One monitoring well (MW-F) was not sampled because of ice and sediment over the well cap. Groundwater flow was to the southeast and was 13 to 14 feet below ground surface. The monitoring wells were not purged prior to sampling with Hydrasleeves. |
Robert Weimer |
| 4/16/2013 |
Document, Report, or Work plan Review - other |
August 16, 2012 groundwater monitoring event. Up to non-detect (<1.0 ug/l) benzene, and non-detect (<0.1 mg/l) GRO in groundwater in the 4 monitoring wells sampled. Contaminant concentrations decreased from the previous sampling event in 1 monitoring well. One monitoring well (MW-F) was not sampled because of ice and sediment over the well cap. Groundwater flowed to the south and was 13 to 14 feet below ground surface. The monitoring wells were not purged prior to sampling with Hydrasleeves. |
Robert Weimer |
| 5/8/2013 |
Update or Other Action |
The next monitoring event in the summer of 2013 will include no purge and purge sampling in every monitoring well except the upgradient monitoring well MW-A. |
Robert Weimer |
| 6/11/2013 |
Offsite Soil or Groundwater Disposal Approved |
Approved transport of drums of purge water to the 810 W Tudor site for storage. Treatment of the purge water will be submitted under a seperate request. |
Robert Weimer |
| 6/17/2013 |
Offsite Soil or Groundwater Disposal Approved |
ADEC approves request to transport and treat drums of contaminated purge water at Emerald. |
Robert Weimer |
| 6/27/2013 |
Site Visit |
Site visit to observe current site conditions. |
Robert Weimer |
| 7/16/2013 |
Meeting or Teleconference Held |
Teleconference with Texaco's consultant about the results of the June 12-14, 2013 groundwater monitoring. After reviewing the field notes the groundwater sampling was not conducted in accordance with DEC guidance/requirements. The groundwater samples were not collected from the top of the water column at the soil/water interface as required. Because of that the sample results can't be used for site closure decisions. Texaco's consultant said that future sampling will be conducted with a low flow bladder pump in accordance with DEC guidance/requirements. |
Robert Weimer |
| 3/4/2014 |
Offsite Soil or Groundwater Disposal Approved |
Approved transport of drums of purge water to the 810 W Tudor site for storage. Treatment of the purge water will be submitted under a seperate request. |
Robert Weimer |
| 3/7/2014 |
Document, Report, or Work plan Review - other |
June 12-14, 2013 groundwater monitoring event. Up to non-detect (<1.0 ug/l) benzene, non-detect (<0.1 mg/l) GRO, non-detect (<0.762 mg/l) DRO, 2.8 mg/l RRO, and non-detect (<2.0 ug/l) lead in groundwater in the 8 monitoring wells sampled. Contaminant concentrations increased from the previous sampling event in 1 monitoring well. Groundwater flowed to the south and was 13 to 14 feet below ground surface. The monitoring wells were samples both by purged with a bladder pump and no-purge with Hydrasleeves. The results are considered biased low and can't be used for site closure sampling because the sample interval for the purge sampling was not document in the report or field notes and the no-purge samples were collected from the bottom of the monitoring wells. DEC guidance requires that the groundwater samples be collected from the top of the water column at the soil/water interface. The RRO concentrations exceed groundwater cleanup levels. |
Robert Weimer |
| 5/21/2014 |
Document, Report, or Work plan Review - other |
October 11, 2013 groundwater monitoring event. Up to non-detect (<1.0 mg/l) RRO in groundwater in the 3 monitoring wells sampled. Only RRO samples were collected. Contaminant concentrations increased from the previous sampling event in 0 of the 3 monitoring wells sampled. Groundwater flowed to the south by southeast and was 12.37 to 13.86 feet below ground surface. The monitoring wells were sampled by purged method with a bladder pump. The monitoring results are considered biased low and can't be used for site closure decisions or evaluation of contamination trends or whether the extent of the groundwater contamination has been demonstrated because the sample interval for the purge was not document in the report or field notes. DEC guidance requires that the groundwater samples be collected from the top of the water column at the soil/water interface. |
Robert Weimer |
| 7/29/2014 |
Update or Other Action |
ADEC confirms that all of the site monitoring wells except for upgradient monitoring well MW-A (not just the three sampled in the recent monitoring event) need documentation that they are sampled at the correct interval and analyzed for BTEX, GRO, DRO, RRO, and lead. |
Robert Weimer |
| 9/11/2014 |
Meeting or Teleconference Held |
Teleconference the Shell's consultant regarding potential closure of the site:
1) Submit to ADEC all 2014 groundwater monitoring reports. Based on those results to review frequency of future groundwater sampling.
2) (Corrective Action Complete with IC’s) would require property owner to agree to conditions.
a. Area of impacts would have to be identified and certain conditions met (e.g., management of soil removal if site use changes, no groundwater drinking water well at site)
b. Long term monitoring might be required for well in vicinity of former waste oil UST.
3) (Corrective Action Complete) requires removal of DRO and RRO concentrations in soil (currently between DEC migration to groundwater and ingestion/inhalation cleanup levels) around the former waste oil UST at the northwest corner of the station building. Confirmation of concentrations remaining would need to be compliant with DEC’s migration to groundwater cleanup levels.
|
Robert Weimer |
| 10/20/2014 |
Offsite Soil or Groundwater Disposal Approved |
ADEC approves request to treat 2 drums of contaminated purge water. |
Robert Weimer |
| 1/12/2015 |
Document, Report, or Work plan Review - other |
April 1, 2014 groundwater monitoring event. Up to non-detect (<1.02 mg/l) RRO in groundwater in the 3 monitoring wells sampled. Only RRO samples were collected. Contaminant concentrations increased from the previous sampling event in 0 of the 3 monitoring wells sampled. Groundwater flowed to the south by southeast and was 13.58 to 14.71 feet below ground surface. The monitoring wells were sampled by purged method with a bladder pump with the intake within the top foot of the water column. |
Robert Weimer |
| 2/17/2015 |
Document, Report, or Work plan Review - other |
June 18, 2014 groundwater monitoring event. Up to 0.234 mg/l RRO in groundwater in the 3 monitoring wells sampled. Contaminant concentrations increased from the previous sampling event in 0 of the 3 monitoring wells sampled. Groundwater flowed to the south by southeast and was 13.09 to 14.60 feet below ground surface. The monitoring wells were sampled by purged method with a bladder pump with the intake within the top foot of the water column. |
Robert Weimer |
| 6/1/2015 |
Document, Report, or Work plan Review - other |
August 11, 2014 groundwater monitoring event. Up to non-detect (<0.1 mg/l) GRO, 0.338 mg/l DRO, 0.951 mg/l RRO in groundwater in the 7 monitoring wells sampled. Contaminant concentrations increased from the previous sampling event in 1 of the 7 monitoring wells sampled. Groundwater flowed to the southeast and was 12.92 to 14.43 feet below ground surface. The monitoring wells were sampled by purged method with a bladder pump with the intake within the top foot of the water column. |
Robert Weimer |
| 9/8/2015 |
Document, Report, or Work plan Review - other |
March 27, 2015 groundwater monitoring event. Up to non-detect (<0.05 mg/l) GRO, 0.064 mg/l DRO, 0.104 mg/l RRO, and non-detect (<1.0 ug/l) lead in groundwater in the 7 monitoring wells sampled. Contaminant concentrations increased from the previous sampling event in 2 of the 7 monitoring wells sampled. Groundwater flowed to the south and was 13.58 to 15.08 feet below ground surface. The monitoring wells were sampled by purged method with a bladder pump with the intake within the top foot of the water column. |
Robert Weimer |
| 9/9/2015 |
Document, Report, or Work plan Review - other |
June 3, 2015 groundwater monitoring event. Up to non-detect (<0.05 mg/l) GRO, 0.0752 mg/l DRO, 0.086 mg/l RRO, and non-detect (<1.0 ug/l) lead in groundwater in the 7 monitoring wells sampled. Contaminant concentrations increased from the previous sampling event in 2 of the 8 monitoring wells sampled. Groundwater flowed to the south and was 13.72 to 15.22 feet below ground surface. The monitoring wells were sampled by purged method with a bladder pump with the intake within the top foot of the water column. |
Robert Weimer |
| 11/2/2015 |
Offsite Soil or Groundwater Disposal Approved |
Approved transport of drums of purge water to the 810 W Tudor site for storage. Treatment of the purge water will be submitted under a seperate request. |
Robert Weimer |
| 2/25/2016 |
Document, Report, or Work plan Review - other |
August 24, 2015 groundwater monitoring event. Up to non-detect (<0.05 mg/l) GRO, 0.0677 mg/l DRO, 0.226 mg/l RRO, and non-detect (<1.0 ug/l) lead in groundwater in the 8 monitoring wells sampled. Contaminant concentrations increased from the previous sampling event in 7 of the 8 monitoring wells sampled. Groundwater flowed to the south by southwest and was 13.58 to 15.08 feet below ground surface. The monitoring wells were sampled by purged method with a submersible pump with the intake within the top 1.2 feet of the water column. |
Robert Weimer |
| 3/15/2016 |
Meeting or Teleconference Held |
Teleconference with Shell and their consultant (GES) to discuss future site work for site closure. They will submit a work plan for the 2016 groundwater monitoring that will include analysis for PAHs. DEC is requesting an annual groundwater monitoring event in monitoring wells MW1, MWB, MWD, and MWF for BTEX, GRO, DRO, RRO, and full PAHs. DEC requested rose diagrams showing historical groundwater flow directions be included in future site monitoring report maps. As discussed previously need to characterize the extent of the PAH contamination in the groundwater at this site. |
Robert Weimer |
| 6/14/2016 |
Document, Report, or Work plan Review - other |
October 21, 2015 groundwater monitoring event. Up to 0.307 mg/l DRO, 0.140 mg/l RRO, and non-detect lead and GRO in groundwater in the 8 monitoring wells sampled. Contaminant concentrations increased from the previous sampling event in 8 of the 8 monitoring wells sampled. Groundwater flowed to the south by southeast and was 12.91 to 13.78 feet below ground surface. The monitoring wells were sampled by purged method with a submersible pump with the intake within the top of the water column, except for MW-F. The sample depth was not documented for monitoring well MW-F. |
Robert Weimer |
| 7/27/2016 |
Document, Report, or Work plan Review - other |
DEC requested revised work plan for PAH sampling of selected monitoring wells at this site to help assess current concentrations in the groundwater. |
Robert Weimer |
| 8/4/2016 |
Meeting or Teleconference Held |
Teleconference with Shell and their consultant (GES) to discuss future site work for site closure. They will submit a revised work plan for the September/October 2016 groundwater monitoring to include PAHs. Rose diagrams showing historical groundwater flow directions are to be included in future site monitoring report maps. They will document which monitoring wells are damaged or not accessible, so they can be repaired, decommissioned, or possibly replaced. DEC is requesting an annual groundwater monitoring event in monitoring wells MW1, MWB, MWD, and MWF for BTEX, GRO, DRO, and RRO. Also full PAHs in monitoring wells MW1 and MW2. As discussed previously need to characterize the extent of the PAH contamination in the groundwater at this site. |
Robert Weimer |
| 12/14/2016 |
Document, Report, or Work plan Review - other |
September 30, 2016 groundwater monitoring event. Non-detect for DRO, RRO, GRO, BTEX, PAH, EDB, and 1,2-DCA in groundwater in the 5 monitoring wells sampled. The laboratory reporting limits for the samples exceeded detections in past monitoring events, EDB detection limits exceeded cleanup level, and PAH samples were analyzed outside of holding times by one day. The reporting limit exceeded cleanup levels with some PAHs. Groundwater flowed to the south and was 13.80 to 14.88 feet below ground surface. The monitoring wells were sampled with a bladder pump pump with the intake within the top of the water column after purging, except for MW-2. The sample depth was not documented for monitoring well MW-2. The consultant will provide a revised monitoring report with MDLs and the pump intake depth for MW-2. |
Robert Weimer |
| 12/15/2016 |
Meeting or Teleconference Held |
Teleconference with Shells consultant (GES) to discuss future site work for site closure. They will submit a proposal for DEC approval regarding future groundwater monitoring. They will submit and updated PAH sampling report with method detection limits. |
Robert Weimer |
| 5/19/2017 |
Update or Other Action |
DEC email to consultant (GES) to check on the status of the requested work plan to complete the characterization at this site. |
Robert Weimer |
| 5/19/2017 |
Document, Report, or Work plan Review - other |
Review of revised September 30, 2016 groundwater monitoring event. The revised report included laboratory reporting limits based on method detection limits and pump intake depth for monitoring well MW-2. Up to 0.15 mg/l RRO, and non-detect for DRO, GRO, BTEX, PAH, EDB, and 1,2-DCA in groundwater in the 5 monitoring wells sampled. Groundwater flowed to the south and was 13.80 to 14.88 feet below ground surface. The monitoring wells were sampled with a bladder pump pump with the intake within the top of the water column after purging. |
Robert Weimer |
| 7/21/2017 |
Document, Report, or Work plan Review - other |
DEC reviews and approves work plan to decommission all of the sites monitoring wells to prepare site for closure. |
Robert Weimer |
| 8/8/2017 |
Meeting or Teleconference Held |
Meeting with Shell with Shells consultant (GES) to discuss future site work for site closure. We discussed that they will conduct the decommissioning of the monitoring wells soon and provide documentation. Once we have that information be can prepare the site closure letter. |
Robert Weimer |
| 8/24/2017 |
Document, Report, or Work plan Review - other |
On August 9, 2017 the nine site monitoring wells (MW-1, MW-2, MW-3, MW-A, MW-B, MW-C, MW-D, MW-E, and MW-F) were decommissioned in accordance with the approve work plan. |
Robert Weimer |
| 9/21/2017 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 78050 1996 UST contamination. |
Robert Weimer |
| 9/25/2017 |
Cleanup Complete Determination Issued |
Site closure letter issued by DEC on September 25, 2017. |
Robert Weimer |
