Newhall Remediation Project
 

Regional Water Authority - Hamden Middle School

Proposed Change In Ground-Water Classification Hamden And New Haven, Connecticut - March 2008

Report

Figure 1 - Site Location Map and Figure 2 - Approximate Thickness of Historic Filling

Appendix I - Summary of Ground-Water Quality Results

Appendix II - Summary of Data Collected During Potable Well Survey

Appendix III - Tax Assessor Cards

Appendix IV - Notification Letters to Municipal Officials

Plate 1 - Ground-Water Contour Map for January 29, 2008 and Proposed Reclassification Area

Approval - Request for Extension for Submittal of Remedial Action Plan - March 19, 2008 Letter
Status Update
Former New Haven Water Company Property, June 6, 2007
Letter
Schedule
Conditional Approval, April 16, 2007 Letter
Second Sample Results for 315-317 Morse Road and Quarterly Ground-Water Results, Former New Haven Water Company Property Letter, Table and Appendices (5 MB)
Proposed Supplemental Investigation Report, November 15, 2006 Report (2.5 MB PDF)
Residential Soil-Vapor Sampling Addendum, November 13, 2006 Letter (1.5 MB PDF)
Ground Water Monitoring, Former New Haven Water Company Property, September 29, 2006 Letter (3 MB PDF)
Water Quality Update - Ground Water Monitoring, letter to DEP from Leggette, Brashears & Graham, Feb. 6, 2006 Letter (2 MB PDF)
Middle School Site Hamden, CT, Groundwater Monitoring Requirements, letter to RWA (September 26, 2005) Letter
Review of Final Investigation and Remedial Evaluation Report, letter addressed to RWA (August 31, 2005) Letter
Summary of Final Report/Investigation and Evaluaton of Remedial Alternatives (March 31, 2005) Summary
Final Report/Investigation and Evaluaton of Remedial Alternatives
Former New Haven Water Company Property
Hamden, Connecticut
(March 31, 2005)
Final Report
Tables (4 MB, 219 pages, large file)
Figures
Plates (Maps)
Appendices

Notice of Addendum to Final Investigation
Report and Evaluation of Remedial Alternative Report
Former New Haven Water Company Property
Hamden, Connecticut
(March 3, 2005)

Letter
Request for Modification to Sampling Plan and Addendum
Supplemental Scope of Study
Former New Haven Water Company Property, Hamden, Connecticut
(February 2, 2005)
Approval Letter
Clarification and Additional Information for Dioxin
Sampling Modification identified in December 14, 2004
Request for Modification to Sampling Plan and Addendum
to April 16, 2004 (January 18, 2005)

Letter

Plate 1

Table 1A

Request for Modification to Sampling Plan and Addendum
Supplemental Scope of Study
Former New Haven Water Company Property, Hamden, Connecticut
(January, 2005)
Conditional Approval
Request for Modification to Sampling Plan and Addendum
to April 16, 2004 Supplemental Scope of Study, Former
New Haven Water Company Property,
Middle School Site, Hamden, Connecticut” (December 14, 2004)

Letter

Plate 1

Plate 2

Table 1

Table 2

Sampling and Analysis Requirements for Dioxins and Furans (December 1, 2004) Letter
Modification to Supplemental Scope of Study (October 6, 2004) Approval letter
Request for Modification to Sampling Plan (August 5, 2004)
Letter
Supplemental Scope of Study (July 2004) Conditional Approval Letter
Response to Comments
Addendum and Modification to April 16, 2004 “Supplemental Scope Of Study, Former New Haven Water Company Property, Hamden Connecticut” (June 28, 2004)

Summary

CoverLletter

Attachment 1: references

Attachment 2: updated tables

Attachment 3: testing equipment

Work Plan Summary (April 2004) Work Plan Summary
Supplemental Scope Of Study, Phase III Environmental Site Investigation (April, 2004)

Work Plan

Figures

Historical Tables, Appendix IV

Plates

Tables

Response to Comments

Phase III Environmental Site Investigation,
Former New Haven Water Company Property, Hamden, Connecticut,
Volumes 1 - 5 (December 2002)

Report

Summary

Disapproval Letter (March 2004)

Figures (1.8MB PDF file)

Tables (1MB PDF file)

Plates (20MB PDF file)

Public Health Assessment Evaluation of Soil, Groundwater, Soil Gas, and Indoor Air Data, Hamden Middle School (PDF) (January 2004)
Final Report
Consent Order Progress Reports
(June 2003-April 2004)

Reports

Draft Public Health Assessment: Evaluation of Soil, Groundwater, Soil Gas and Indoor Air Data, Hamden Middle School, Hamden, Connecticut (September 2003)

Draft Report

Summary

Revised Hamden Middle School Plan (July 2002)
Revised Plan
Test Pit Summary - Hamden Middle School, Rochford Field, Mill Rock Park (December, 2002)
Summary
ASTM Phase I Environmental Site Assessment,
Hamden Middle School and surrounding Newhall Street Neighborhood, Hamden, CT (January 2002)
Report
Figures
Fact Sheet: Environmental Hazards at Hamden Middle School (March 2001) Fact Sheet

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


About the Website Latest
Developments
Newhall
History
Understanding
Contamination
Health
Documents Meetings & Public Groups In the News Contact
Information
FAQs