ASTM Phase I - newhallinfo.org

1 REPORT ON astm Phase I ENVIRONMENTAL SITE ASSESSMENT HAMDEN MIDDLE SCHOOL AND SURROUNDING NEWHALL STREET NEIGHBORHOOD HAMDEN, CONNECTICUT by Haley & Aldrich, Inc. Glastonbury, Connecticut for Town of Hamden Hamden, Connecticut File No. 27892-400 January 2002 Revised December 2002 UNDERGROUND ENGINEERING & ENVIRONMENTAL SOLUTIONS Haley & Aldrich, Inc. 800 Connecticut Blvd., Suite 100 East Hartford, CT 06108-7303 Tel: Fax: 20 November 2001 Revised 9 December 2002 File No.

2 27892-400 Town of Hamden 2372 Whitney Avenue Hamden, Connecticut 06518 Attention: Mr. Donald Proto Subject: astm Phase I Environmental Site Assessment Hamden Middle School and Surrounding Newhall Street Neighborhood Hamden, Connecticut OFFICES Boston Massachusetts Cleveland Ohio Dayton Ohio Detroit Michigan Kansas City Kansas Los Angeles California Manchester New Hampshire Newark New Jersey Portland Maine Rochester New York San Diego California Santa Barbara California Tucson Arizona Washington District of Columbia Ladies and Gentlemen.

3 This report presents the results of a Phase I Environmental Site Assessment ( Phase I) conducted at the above referenced property. This work was performed by Haley & Aldrich, Inc. (Haley & Aldrich) in accordance with our proposal to Town of Hamden dated 2 July 2001 ( Agreement ) as authorized by Town of Hamden on 17 August 2001. As indicated in our proposal, this Phase I was conducted using practices consistent with the astm E 1527-00 Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process.

4 The goal of this Phase I assessment was to evaluate site history, existing observable conditions, current site use, and current and former uses of surrounding properties to identify the potential presence of Recognized Environmental Conditions (RECs) at the site, as defined in the astm E 1527-00 Standard. Our conclusions regarding the presence and potential impact of RECs on the subject site are intended to help the user evaluate the business environmental risk associated with the site, as defined in the astm E 1527-00 Standard and discussed in the Introduction section of this report.

5 Town of Hamden 20 November 2001 Revised 9 December 2002 Page 2 Thank you for the opportunity to perform these services for you. Please do not hesitate to contact us if you have any questions or comments. Sincerely yours, HALEY & ALDRICH, INC. Deborah Motycka Downie, LEP Chris G. Harriman, LEP Senior Hydrogeologist Senior Environmental Geologist William F. Kay, Jr., PE, , LEP Vice President Enclosures G:\PROJECTS\27892\400\Report\Ph I ESA EXECUTIVE SUMMARY Haley & Aldrich, Inc. has performed a Phase I Environmental Site Assessment (ESA) of the Hamden Middle School and Surrounding Newhall Street Neighborhood properties in the Town of Hamden, Connecticut.

6 The scope of work is described and conditioned by our proposal dated 2 July 2001. As indicated in our proposal, this Phase I was performed in conformance with the scope and limitations of the astm E 1527-00 Standard. The purpose of this assessment was to evaluate site history, existing observable conditions, current site use, and current and historic uses of surrounding properties to identify the potential presence of Recognized Environmental Conditions (RECs) in connection with the subject site. Exceptions to, or deletions from, this practice are described in Section I of this report.

7 Our conclusions are intended to help the user evaluate the business environmental risk associated with the site, as defined in the astm E 1527-00 Standard and discussed in the Introduction section of this report. The subject site is composed of 131 separate properties that have been separated into seven Parcels as shown on Figure 2. One of the Parcels (Parcel 4) is composed of six Town-owned properties, including the Hamden Middle School, Hamden Community Center, Newhall Street Athletic Fields, Rochford Field (baseball fields), Mill Rock Park (Rochford Field Annex), and a sewer pump station.

8 The other six Parcels are comprised of residential properties with single or multi-family homes. RECOGNIZED ENVIRONMENTAL CONDITIONS The goal of the astm E 1527-00 Standard practice is to identify Recognized Environmental Conditions (RECs), as defined in the Standard and in Section I of this report. This assessment has revealed no evidence of recognized environmental conditions currently in connection with the property except for the following four RECs listed below. The astm E 1527-00 Standard requires an opinion of the potential impacts of REC(s) identified on a site during a Phase I.

9 Our opinion is rendered with respect to a REC s potential (high, medium or low) to require remedial response based on prevailing agency requirements and on our understanding of the sensitive nature of the property use (School, daycare, residential use and Municipal Park or athletic fields). Our opinion is limited by the conditions prevailing at the time our work is performed and the applicable regulatory requirements in effect. During the Phase I ESA, Haley & Aldrich identified several RECs associated with the subject site.

10 Our opinion of the potential impacts of REC(s) identified in this Phase I is as follows: REC #1: Former landfill areas that existed on the site during the period from the 1920s through the mid 1950s. Potential Impact: High Explanation: Based on the results of the ESA, Haley & Aldrich encountered evidence of historic landfills on the subject site. Former industrial waste landfills were located at the site of the Hamden Middle School and associated Newhall Street Athletic Field, and at the site of Rochford Field and may occur on abutting properties to the south.