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GHS and MISA Environmental Testing

& Remediation Plan

Background: In mid July 2011, during the course of the excavation work for the Greenwich High School Music Instructional Space and Auditorium (MISA) project, unexpected soil conditions were discovered in the West (or back) parking lot, adjacent to the fields, which prompted immediate environmental testing. The site work in the west lot was stopped and the excavation area was contained. The initial tests reflected low levels of some metals, Volatile Organic Compounds (VOCs) and polychlorinated biphenyls (PCBs) in the soil.  A second round of samples was taken on July 20thand included soil and indoor and outdoor air testing. The results of the air quality tests indicate all selected factors are within acceptable levels. The results of the second round of soil samples duplicated the previous results, which showed low levels of some metals, VOCs and PCBs in the soil.  On July 29, 2011 the results of a third set of soil samples taken closer to fields 3 and 4 at a depth of one foot beneath the surface, reflected PCBs levels that are above acceptable standards for residential or commercial use as determined by the Connecticut Department of Energy and Environmental Protection (DEEP). These results prompted the closure of all fields as a precaution until a more comprehensive understanding of the extent of the issue could be determined.

The Greenwich Public Schools/Board of Education, the Town of Greenwich and the GHS-MISA Building Committee are working in collaboration to address the environmental concerns of the fields at Greenwich High School. Licensed Environmental Professionals have been contracted to plan for and conduct more comprehensive testing. The Town and State Departments of Health and Environmental Protection, and the Federal EPA are also involved in consultation on the testing and remediation plans.

December 2014

12/11/14: GHS Environmental Testing and Remediation Action Plan (RAP) Update 

12/11/14: October 2014 Response to Comments on RAP Letter from AECOM to US EPA

September 2014

9/23/14: DPW Receives Approval Letter from US-EPA: Response to Request for Modification to PCB Soil Disposal Approval for GHS MISA Footprint Project Area - specifically on the manner and timing of recording the deed restriction

9/22/14: Frequently Asked Questions and Answers II (Remediation, Landscaping, ELUR and Wetlands)
                   Figure 1-2 Site Plan 

June - August 2014: Summer 2014 Remediation Activities, Project Updates, and Groundwater Reports
Visit this Page For Frequently Asked Questions on Summer 2014 Remediation Work at GHS 

8/26/14 GHS Environmental Testing and Remediation Update
                    Reference also Figures C-2, C-2a, C-2b, and C-2c under May 2014 

7/26/14 Letter to EPA: April 2014 Groundwater Monitoring Results 

7/26/14 Letter to EPA: November 2013 Groundwater Monitoring Results 

7/31/14 GHS Environmental Testing and Remediation Update 
                     Reference also Figures C-2, C-2a, C-2b, and C-2c under May 2014  

6/20/14 GHS  Environmental Testing and Remediation Update: Remediation Activites Set to Begin
                 Reference also Figures C-2, C-2a, C-2b, and C-2c under May 2014                 

May 2014

5/19/14 GHS Environmental Testing and Remediation Update
             Figure C-2; Figure C-2a; Figure C-2b; Figure C-2c

February 2014
2/19/14 Remedial Action Plan Update: Response to Agency Comments
2/19/14 Remedial Action Plan Response to Agency Comments - Letter and Support Documents

December 2013
12/19/13 FINAL Remedial Action Plan Update
12/19/13 FINAL Remedial Action Plan Report (Submitted November 2013) (19MB) 
12/13/13 Modification Request Regarding PCB Soil Disposal for MISA Footprint from AECOM to EPA 

November 2013
11/8/13 Groundwater Report Update 
11/8/13 Groundwater Report - Annual Groundwater Monitoring Results (7MB)

October 2013
10/24/13 Board of Education Acts to Support DPW's Recommended Remedial Action Plan

September 2013
9/19/13 Board of Education Agenda Item - GHS RAP Update
9/5/13 Draft Remedial Action Plan Update
9//13 Draft Remedial Action Plan (Report) (34.9MB)

July 2013 
Response to Spring 2013 Public Comment

June 2013 - Summary Update & May 2013 Groundwater Monitoring Report

6/24/13 Summary Update - Groundwater Monitoring and Summer 2013 Schedule
May 2013 Groundwater Monitoring Report

May 2013 - Summary Update and Frequently Asked Questions:

5/8/13 Summary Update on Reports, Proposed Option, Next Steps & Project Timeline
5/8/13 Frequently Asked Questions on GHS Environmental Study
5/8/13 Opinion Editorial (OpEd) Submitted by the Commissioner of Public Works Amy Siebert

February-April 2013 GHS Environmental Study Summary & Findings Reports & Updates

4/8/13 Groundwater Monitoring - February 2013 - Update (posted 4/8/13)
* Groundwater Monitoring Report (posted 4/8/13)

* 4/4/13 Presentation to Board of Education (powerpoint)

* Feasibility Study Update (Posted 4/3/13)
* Arsenic Background Study Update (Reference Appendix B in Feasibility Study Report below)(Posted 4/3/13)
* Feasibility Study Report (Posted 4/3/13) (362 pages, 36MB)

* Remedial Investigation Summary Update (Posted 2/27/13)
* Remedial Investigation Summary Report (Posted 3/12/13) (10,277 pages, 412MB)
* Remedial Investigation Summary Report - Executive Summary (Posted 2/28/13) (3 pages)

* Human Health Risk Assessment Update (Posted 2/27/13)
* Human Health Risk Assessment Report 2 (Posted 2/27/13) (1,440 pages  - 26MB)

* Screening Level Ecological Risk Assessment Update (Posted 2/27/13)
* Screening Level Ecological Risk Assessment Report (Posted 2/27/13) (271 pages - 7.7MB)

Greenwich High School Environmental Reports
Large reports available by visiting the Board of Education Communications Office and/or calling 203-625-7426:

* Proposed Soil Sampling Locations for Summer 2012 Figure 1 (Posted 6/22/12)
* Proposed Groundwater Sampling Locations for Summer 2012 Figure 2 (Posted 6/22/12)
* Proposed Sediment Sampling Locations for Summer 2012 Figure 3 (Posted 6/22/12)
* Proposed Surface Water Sampling Locations for Summer 2012 Figure 4 (Posted 6/22/12)
* Proposed Ambient Air & Soil Vapor Sampling Locations for Summer 2012 Figure 5 (Posted 6/22/12)
* Arsenic Distribution in Soil - April 2012 Data (Posted 6/14/12)
* Barium Distribution in Soil - April 2012 Data (Posted 6/14/12)
* Exceedances of Recommended Screening Criteria - April 2012 Data (Posted 6/14/12)
* Exceedances of Screening Criteria For Groundwater - April 2012 Data (Posted 6/14/12)
* Exceedances of Screening Criteria For Groundwater - February 2012 Data (Posted 6/14/12)
* Exceedances of Screening Criteria for Sediment - December 2011 Data (Posted 6/14/12)
* Exceedances of Screening Criteria for Surface Water - December 2011 Data (Posted 6/14/12)
* Lead Distribution in Soil - April 2012 Data (Posted 6/14/12)
* PAHs Distribution in Soil - April 2012 Data (Posted 6/14/12)
* PCB Distribution in Soil - April 2012 Data (Posted 6/14/12)
* TPH Distribution in Soil - April 2012 Data (Posted 6/14/12)
* MISA Remedial Plan Addendum, April 2012 (178 pages, 9.3 MB)
* Notification Protocols & Standard Operating Procedures, February 2012 (17 pages, 13.5 MB)
* MISA Soil Investigation Report and Appendices, January 23, 2012 (30 pages, 13.3 MB, 253 pages, 24.4 MB)
* Interim Remedial Measure Completion Report: Field 1, January 17, 2011 (349 pages, 48.6 MB)
* Interim Remedial Measure Completion Report: Fields 2 & 5, January 25, 2012 (876 pages, 174.2 MB)
* Interim Remedial Measure Completion Report: Fields 3 & 4, January 23, 2012 (673 pages, 81.7 MB)
* Interim Remedial Measure Completion Report: Fields 6 & 7, January 12, 2011 (152 pages, 26 MB)

Community Updates: GHS Environmental Project - Fields & MISA

2/7/13: GHS Environmental Study Public Open House Notice - March 6, 2013

2/7/13: February 2013 Update: Testing Notice - Winter Recess

1/28/13: 1/23/13 Letter from CT Dept. of Construction Services, Bureau of School Facilities (BSF) Approval to go to Bid on MISA Project.

1/18/13: 12/10/12 Letter from GPS - Acceptance of EPA Conditions for Approval of Soil Disposal for MISA Footprint

12/5/12: 12/3/12 Letter from US EPA - PCB Soil Disposal Approval for MISA Footprint

10/18/12: 10/17/12 Letter from U.S. Army Corps of Engineers - Determination: "...no violation of Section 404 of the Clean Water Act"

9/28/12: 9/27/12 Letter to U. S. Army Corps of Engineers from Town of Greenwich Regarding USACoE Request for Additional Materials

9/28/12: 9/26/12 Letter to EPA from Town of Greenwich Regarding Soil Remediation Action Plan for MISA

8/24/12: 8/24 Public Update on GHS Envorinmental Testing

8/24/12: August 16, 2012 Town of Greenwich Response to U.S. Environmental Protection Agency

8/21/12: July 31, 212 Town of Greenwich Response to Army Corps of Engineers' July 9, 2012 Letter

7/9/12: GHS Environmental Testing Update, Fields 6 and 7 Re-Opened

6/22/12: GHS Environmental Testing Update, Summer 2012 Work Plans

6/14/12: GHS Environmental Testing Update, Report on April Study

5/7/12: MISA Remedial Plan Addendum (178 pages, 9.3 MB)

4/20/12: 4/20 Public Update on GHS Fields - Summary Report on February Break Sampling Program

4/6/12: 4/6 Community Update on GHS Fields - Status Recap & Next Steps

3/16/12: GHS Fields Update - Use of Fields

3/14/12: Letter re: Well Survey on Property Abutting Greenwich High School

3/6/12: 3/6 Public Update on GHS Environmental Testing - Results of December 2011 Testing - All GHS Fields Are Open!
            Site Map figure depicting exceedances related to groundwater and surface water
            Site Map figure depicting exceedances related to sediment
            Site Map figure depicting exceedances related to subsurface soil

2/24/12: 2/24 Public Update on GHS Environmental Project - Well Study

2/16/12: MISA Soil Investigation Report (30 pages, 13.3 MB)
              MISA Soil Investigation Report - Appendices (253 pages, 24.4 MB)

1/30/12: 1/30 Public Update on GHS Fields/MISA

12/27/11: Follow Up Q&A to 12/20 Public Update from The Dept. of Public Works and AECOM

12/20/11: 12/20 Public Update on GHS Fields

11/14/11: 11/14 Public Update on GHS Fields

10/28/11: 10/28 Public Update on GHS Fields: Fields 6&7 Open Without Restrictions

10/15/11: 10/15 Public Update on GHS Fields: Field 6 Opens with Restrictions

9/28/11: Public Update on GHS Environmental Testing & Remediation - Parking Will Be Available for Seniors on October 3rd.

9/28/11: Letter to Middle School Parents: Interscholastic Sports Program Set to Commence Week of October 3rd

9/26/11: Town of Greenwich Public Notice of Remediation Work Commencing at Greenwich High School

9/13/11: 9/13 Public Update on Environmental Testing and Fileds at GHS - Corrected

9/7/11: PUBLIC OPEN HOUSE on Environmental Testing at GHS - View on GPS-TV
            Public Open House Agenda           
            Greenwich High School Site Plan Rendering
            CT Department of Health: FAQ on PCB Contamination at Greenwich High School
            Diversified Technology Consultants, Inc. Summary of Environmental Testing and Remediation Conducted to Date
            Phase I Environmental Site Assessment - Submitted by Diversified Technology Consultants, Inc. (Large file: 312 pages, 26.4 MB)
            GHS Site Map of Surficial Sample Locations, PCB Analytical Data, Proposed Excavation Areas
            GHS Athletic Program Practice Schedule for 9/6-9
            Middle Schools' Interim Intramural Program
       

8/25/11: 8/25 Update on Environmental Testing, Parking, and Fields at GHS
              GHS Site Map reflecting soil samples
              Town of Greenwich Health Department Notice on PCB's
              ATSDR Fact Sheet on PCB's
              GHS Athletic Schedule and Short Term Field Assignments - Revised Saturday, 8/27/11

8/16/11: Letter to Greenwich High School Parents Regarding Parking

8/12/11: 8/12 Update on Environmental Testing and Fields at GHS

8/4/11: Letter to Parents from Superintendent

8/2/11: 8/2 Update on Environmental Testing and Fields at GHS

8/1/11: 8/1 Update on Environmental Testing and Fields at GHS

7/29/11: GHS Fields Closed Until Further Notice

7/27/11: GHS-MISA Environmental Testing

7/22/11: Letter to Parents and Staff of Secondary Summer School



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