Christine Perron
September 27, 2021
for analysing MSATs in a NEPA document; 1) No Meaningful MSAT effects; 2) Low Potential MSAT effects;
3) High Potential MSAT effects.
For projects with low potential MSAT effects, a qualitative assessment (Phase | analysis) of emissions
projections will be conducted in accordance with Appendix B and Appendix C of the FHWA guidance. For
projects with no meaningful MSAT effects, no formal analysis is required.
Christine Perron
September 27, 2021
Ozone: The 1-hour 1979 and 8-hour 1997 ozone standards have since been revoked and the area was
recently reclassified as unclassifiable/attainment for ozone.
Particulate Matter: The study area is located in an EPA designated attainment area for particulate matter
(PMio and PM25s); therefore, PMio and PM25s Transportation Conformity requirements do not apply for
projects located in Hillsborough County.
HMMH
700 District Ave, Suite 800
Burlington, Massachusetts 01803
781.229.0707
September 27, 2021
Christine Perron
Senior Environmental Analyst
McFarland Johnson
Subject: Air Quality Conformity/NEPA Support City of Nashua
Reference: HMMH Proposal Number P21-0240
Dear Christine:
September 10, 2021 Page 6
20210910 Bridge St E Hollis St Nashua Sanborn Head Amend 1.docx 4381.00
s Item 1009.22 - Stockpile and Off-Site Disposal of Unanticipated Contaminated Soil.
September 10, 2021 Page 5
20210910 Bridge St E Hollis St Nashua Sanborn Head Amend 1.docx 4381.00
Soil samples from the test borings will be submitted for geotechnical laboratory testing as
follows:
= Grain size analysis (ASTM D6913) - 3 samples;
m» Standard Proctor moisture/density test (ASTM D698) - 1 sample; and,
» California Bearing Ratio (CBR) test (ASTM D1883) - 1 sample.
Task FD5 - Geotechnical Engineering and Report
September 10, 2021 Page 4
20210910 Bridge St E Hollis St Nashua Sanborn Head Amend 1.docx 4381.00
Task FD2 - Asbestos Disposal Site Work Plan
September 10, 2021 Page 3
20210910 Bridge St E Hollis St Nashua Sanborn Head Amend 1.docx 4381.00
September 10, 2021 Page 2
20210910 Bridge St E Hollis St Nashua Sanborn Head Amend 1.docx 4381.00
SCOPE OF SERVICES
Our scope of services is divided into phases for Preliminary Design, Final Design, and
Construction Documents as follows:
Preliminary Design
20 Foundry Street
SANBORN HEAD Concord, NH 03301
(603) 229-1900
Building Trust. Engineering Success.
Christine J. Perron, CWS September 10, 2021
McFarland Johnson, Inc. File No. 4381.00
53 Regional Drive
Concord, NH 03301 Sent via email
Re: | Proposed Amendment #1 for Environmental and Geotechnical Engineering Services
(revised)
Preliminary Design, Final Design and Construction Documents
Bridge Street/East Hollis Street Intersection Improvements
Nashua, New Hampshire
Dear Christine:
IBI GROUP
Deliverables:
e Prepare plans for planting
Prepare plans for Lighting
Landscape Details
Technical Specifications for landscape related scope items
Submissions at 60% and 100%
Coordination meetings by teleconference
Project team coordination
Project administration
All drawings will be produced in AutoCAD
Formerly CRJA-IBI Group. IB] Placemaking is a member of the IBI Group of companies.
