Finance Committee

decision within 15 calendar days. The City of Nashua's decision on the matter is final. Any work
affected by a conflict, error, omission, or discrepancy which has been performed by Professional
Engineer prior to having received the City of Nashua’s resolution shall be at Professional
Engineer's risk and expense. At all times, Professional Engineer shall carry on the work under
this contract and maintain and complete work in accordance with the requirements of the contract

4. CITY OF NASHUA REPRESENTATIVE The City of Nashua may designate a City of Nashua
representative for this contract. If designated, all notices, project materials, requests by
Professional Engineer, and any other communication about the contract shall be addressed or be
delivered to the City of Nashua Representative.

General Terms and Conditions

DEFINITIONS Unless otherwise required by the context, "Professional Engineer”, and its
successors, transferees and assignees (together “Professional Engineer”) includes any of the
Professional Engineer's consultants, sub consultants, contractors, and subcontractors

2m DW SF WN

*

10.
11.
12.
13.
14.
15.
16.
17.
18.
19,
20.
21.
22.
23.
24.
25.
26.
27.
28.
29,
30.
31.

EXHIBIT B

CITY OF NASHUA
PROFESSIONAL SERVICES
GENERAL TERMS and CONDITIONS

DEFINITIONS

PROFESSIONAL ENGINEER STATUS
STANDARD OF CARE

CITY OF NASHUA REPRESENTATIVE
CHANGES TO SCOPE OF WORK
CITY OF NASHUA COOPERATION

SUMMARY OF ESTIMATED STAFF EFFORT (HOURS) AND COSTS
FACILITY PLANNING STUOY
CITY OF NASHUA, NH

TOTAL DIRECT LABOR
TASK DESCRIPTIONS HOURS NON-LABOR SUBS cost

Progress

cursent/future Il flows
$1,036.00

WWF
Plant Infrastructure Assessment --

technical memoranda

Process Flow
Eval
ang
Evaluate oxisting opprations

Evaluate
$1

i,
__ $728.

of
LCCA of $8
of
Dovelop Imptemantation plan . $4,640.00
with Staff $1.
Report

II. Schedule

ENGINEER shall complete the above tasks within 365 days of the CLIENT's written

Authorization to Proceed. The Tasks will generally be completed as follows:

12/10/19

c. Planning level capital cost estimate as well as estimates of impacts on
operating costs.
2. Summarize implementation plan recommendations and hold a workshop with
City staff to review and discuss. Workshop results to be included in Draft Report
(Task L).

K. Report
1. Generate a Draft Report summarizing the analysis, findings and recommendations
of facility planning efforts.
2. Meet with City staff, and if desired NHDES to discuss report and to review
comments.

3. Finalize the report and present to City staff.

a. Process modifications to improve mixed liquor settleability and retain solids

within the aeration tanks and/or clarifiers;

I. Evaluate Nitrogen and Phosphorus Removal Alternatives

1.

“vw fF YN

Perform an initial screening of potential phosphorus and long-term nitrogen
removal alternatives.

Calibrate process model.

Perform computer modeling to evaluate enhanced biological phosphorus removal.
Evaluate chemical phosphorus removal alternatives.

k. Anaerobic Digestion System

1. Sludge Dewatering

m. Wet Weather Treatment Facility (influent screening, pumping, and Actiflo
process)

n. Instrumentation and Control, SCADA System

o. Odor Control Systems

2. Prepare a comprehensive process flow diagram for the main WWTF and the
WWFETF showing all major return flows.
3. Building Systems and Site Evaluation

d. Instrumentation, controls and SCADA system components will be

evaluated by an instrumentation engineer.

Electrical power distribution systems will be evaluated by an electrical
engineer. Electrical standby generators will be evaluated by an electrical
engineer and mechanical engineer.

Roadways, access drives, parking areas and walkways will be assessed by

a civil engineer.

3. Each discipline engineer will prepare a memorandum that summarizes the

findings from the site visit including the specific condition assessment results as