REQUEST FOR PROPOSALS Review of Supervisory Control and Data Acquisition System February 2010

Ridgewood Water (RW) requests proposals for professional engineering services to review it’s Supervisory Control and Data Acquisition (SCADA) System. Background information, the scope of work, and contents of the proposal are presented in the remainder of this Request for Proposals (RFP).

Proposal Schedule - Three copies of the proposal are due in the offices of RW’s Chief Engineer (205 E. Glen Ave., Ridgewood, NJ - send mail to Ridgewood Water, 131 N. Maple Avenue, Ridgewood, NJ 07451 Attn. - Wm. Mowell) on Thursday, 25 March 2010, by 10:00 a.m. (an electronic version can be submitted by this date to [email protected], with hard copies to follow). It is anticipated that the Village will provide a notice to proceed with the project by May 2010.

Pre-Proposal Meeting - A Pre-Proposal meeting to discuss the current SCADA System is scheduled for 9:00 am, Tuesday, 9 March 2010 at RW’s H.V. Florence Control Center at Wortendyke (399 Godwin Avenue, Midland Park, NJ - gated entrance located off Witte Drive). Contact Wm. Mowell, Chief Engineer at (201) 670-5509 or [email protected] prior to March 17th, to discuss further aspects of this project.

BACKGROUND INFORMATION

The Ridgewood Water (RW) supplies water to the property owners located in the four towns of Ridgewood, Glen Rock, Midland Park, and Wyckoff. Following are some basic statistics on the Water System: 17 Square Mile Service Territory

60,000 Population

21,000 Accounts

4 Principal Pressure Zones About 70 Facility Sites which include: - 13 Interconnections with Neighboring Water Systems Only 2 of these presently have remote operating and monitoring capabilities - 50+ Wells and 11 Aeration Treatment Facilities (treating about half of the wells) - 9 Tank Sites - 4 Booster Pumping Stations (pump water back to system gradient from ground storage) - 7 Transfer Pumping Stations (transfer water between pressure zones) Reading of Account Meters is presently being converted from a Telephone-based System to a Radio-based Read System.

In the 1950s, RW began installing lease telephone line based communications between its supply, storage, and pumping facility sites and it’s Central Control Facility in Midland Park (the H.V. Florence Control Center at Wortendyke). The circular chart and indicator (a combination of gauges, scales and counters) based read-outs were located in a single large room within the building. In the early 1990s, RW began the construction and operation of numerous Aeration Treatment Facilities, which increased the complexity of the System operations. Information from these facilities was brought back to the Central Control Facility via leased telephone lines to computer based controls, the beginnings of our present SCADA System. With in-house capabilities in the late 1990s, RW began to expand the SCADA System to include Pumping Stations and Storage Tanks and began converting communications from leased telephone lines to radio (two dedicated frequencies). The present SCADA System and Plan (description attached) are well along the way to being complete. 2

SCOPE OF WORK

RW has not developed a detailed scope of work for this project, but offers the following points of concern that should likely be addressed: Understanding of the present situation/condition of the Water and SCADA Systems Determining RWs expectations and requirements for a SCADA System Development of a long-range SCADA System Plan including such features as: Schedule Costs General Framework of Required Tasks/Projects

RW intends to hire a qualified firm to provide guidance and direction with our existing SCADA System.

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CONTENTS OF PROPOSALS

All proposals should be specifically prepared for this project and include: Firm's understanding of the present situation, A proposed scope of work, Qualifications of the firm to perform this project based on similar work, Key personnel and their qualifications and availability to perform the work, Proposed schedule to complete the work, and Cost and fee information.

Minimum requirements for each of these areas are discussed below:

RW requests the preparation of a proposed scope of work for the project based on the Firm’s understanding of RWs present situation and their previous experience with design and implementation of similar systems for other clients.

Qualifications of the firm should include the specific experience of the firm on projects similar in nature to the proposed project. In demonstrating the firm's experience in these areas, the proposal should include descriptions of similar and related projects carried out by the firm in the past five years, including references (with contact information) and key personnel involved in each project. If the firm proposes to use sub-consultants for any aspect of the project, similar information as described above for each sub-consultant should be included showing the area of responsibility of each sub-consultant.

The proposal should identify the key personnel who will be assigned to each phase of the project. Information about the key personnel should include - resumes, their role in the project and how their experience qualifies them for this role, their anticipated percent participation, and the location of the office(s) where key personnel are located and where they will perform the work.

A proposed schedule for the project should be included, indicating approximate dates for completion 4

of major tasks.

A cost estimate for the work shall be developed, including a breakdown of man-hours, labor costs, and direct costs to complete each major task.

RW desires technical excellence for this project and will select the firm which best demonstrates its experience and that of key personnel to perform similar projects. If necessary, several firms may be interviewed to make a final selection.

A copy of this RFP shall be included as part of the Proposal.

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DESCRIPTION OF SCADA SYSTEM Ridgewood Water’s SCADA system was originally developed based on the Bristol Babcock Inc. (now Emerson’s Remote Automation Solutions Division) Network3000 33xx lines of RTUs, Intellution based HMI/Central, and mixed media of communication (but primarily private leased lines based communication). In 2000, Ridgewood acquired licenses for two pairs of Radio frequencies for its SCADA operation. Upon obtaining the license, four sites were put on-line to retain its licensed frequencies. A Radio Survey was conducted during 2006 to evaluate radio paths to existing facility sites as well as several possible future sites. In 2006, Ridgewood Water also initiated a plan to upgrade and expand its SCADA infrastructure with a set of specific objectives to overcome certain difficulties within its existing SCADA system and to integrate additional sites (wells, tanks and booster stations). Among others, the main areas of difficulties were unreliable leased line based communications and unsupportable Intellution based HMI. The main thrust of the plan was to overcome the phone line issues by installing radio links, replace Intellution based Central, and integrate new RTU sites. MDS Radios for radio connectivity, ControlWave Micros for new RTUs, and OpenEnterprise Client/ Server architecture for replacing Intellution were included in the plan. Upgrade of the existing 33xx product lines to ControlWave micro is presently under consideration that would add uniformity across the system and resolve the concern arising out of obsolescence of Intel based CPU chips. Remote Automation Solutions offer a smooth migration path to its customers that is both cost effective as well as one that mitigates downtime during the transition. Facility sites are controlled through the Florence Control Center by operators using Open Enterprise Workstations. Generally, • Well sites are controlled and monitored for Flow, Pressure, pH and Chlorine. The chlorinator is also controlled depending upon the chlorine content. • Pump Station sites are controlled and/or monitored for Valve Positions, Flow, Pressure, and Daily Total Flow between zones. Valves are controlled to maintain the pressure gradient between zones. The SCADA System is based on a single server and multiple workstations including two workstations being connected remotely. Function of real-time and historical data management as well as serving data to the client work stations is handled by the Server. Redundancy of the Server is under considerations among other enhancements to make the system more fault-tolerant. • Data collection mechanism is via BSAP polling using priority reporting for Alarms, events and Report by Exception as well as background polling using templates in order to optimize available bandwidth. • Daily Reports summarizing Totals, Run-times, Averages are published automatically in Excel Format. • Routines are run every 5 minutes that calculate Volume in Gallons/Feet of Water in every zone. • The RTU components and layouts are standardized across the project to maintain consistency. The block diagram for the current plan of the system is attached. Sample Displays are also enclosed. The plan was divided into seven Phases to facilitate budget planning and gradual infrastructure improvement. Although all Phases have been/are being implemented, permitting issues with several sites associated with Phase 4, 6 and 7 is delaying completion.