CSO Long-Term Control Plan Update/Integrated Plan
Meetings
Consultant will meet with the City as needed throughout the project (6 per year, inclusive of
EPA quarterly meetings) to review project progress and obtain direction on technical work.
Consultant will develop and provide, for each meeting, agenda, schedule, presentation materials
(as needed) and minutes.
In addition to regular monthly meetings, Consultant will prepare for and attend quarterly
meetings with EPA/NHDES. Consultant will develop and provide, for each meeting, agenda,
schedule, presentation materials (as needed) and minutes.
All project deliverables will be provided to the City in both hard copy and electronic format (as
the City requires), and in both PDF and editable file format (e.g., word, CAD, etc.).
Deliverables:
e Two (2) copies of each monthly progress report.
e Two (2) copies of each monthly invoice.
e Meeting agendas and minutes.
Task 2 — Existing Information/Data Review
Consultant will collect and obtain prior CSO and stormwater planning documents as well as other
data from the City, including:
e 1997 Long-Term CSO Control Plan
2003 Long-Term Water Quality and Infrastructure Control Plan
2009 Re-evaluation Study of CSO Control for CSO 005 and 006
CSO Annual Reports submitted to EPA/NHDES
Minutes and related documents for pertinent agency/City meetings on CSO Consent
Decree program completion and acceptance
e The previous stormwater management plan and annual reports from 2004-2019
e Capital Improvement Plan processes, documents, reports, as available
Consultant will also obtain recent information from the City regarding operation of the collection
system that relates or impacts the combined sewer system performance. Review of the reports and
data collected will be performed to inform the background and existing conditions characterization
of the collection system, for the LTCP update.
Task 3 — Characterization of Existing Conditions
Existing receiving water and end-of-pipe water quality data will be collected (provided by City)
and reviewed. Consultant will request, based upon the review of this data, additional water quality
data collection (if required) for the purpose of characterizing existing conditions.
Temporary flow monitoring will be performed to characterize the response of the sewer system to
rainfall, and to re-calibrate the City’s InfoWorks collection system model. Existing conditions
model simulations will be performed to evaluate the current annual average (typical year)
performance of the system (e.g., CSO volumes, frequencies, percent capture).
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