City Council

Agenda Request

Agenda Of:

May 20, 2008

Agenda Request No:

V-B

Initiated By:

Jessie Li, Ph.D., P.E.

Responsible Department:

Utilities

Presented By:

Jessie Li, Assistant Utilities Director

Department Head:

SuEllen Staggs, director of utilities

 

 

Additional Department. Head (s):

N/A

Subject / Proceeding:

Authorize Professional Services Contract for the Water Monitoring System

Exhibits:

scope of Work

Contract signature page

Clearances

Approval

Legal:

meredith wilganowski,

assistant City Attorney

Executive Director:

N/A

Purchasing:

linda symank  

director of fiscal services

Asst. City Manager:

Karen Daly

Budget:

Jennifer Brown

Assistant Fiscal Services Director

City Manager:

Allen Bogard

Budget

Expenditure Required:  $

69,000

Current Budget:  $

69,000

Additional Funding:  $

N/A

Recommended Action

The Utilities Department staff is requesting that City Council authorize the execution of a professional services contract between the City and Source Sentinel LLC for engineering services of the Water Monitoring System in an amount of $69,000.

Executive Summary

The City previously completed a water utility vulnerability assessment (VA) which concluded that one of our most vulnerable areas is the distribution system.  A pilot program was approved in the current budget that would fund the installation of one water quality monitoring station in the City’s distribution system. 

 

Rapid detection of water quality and contamination events in the drinking water distribution system is crucial for proper response. A pilot program for real-time water quality monitoring in the distribution system was funded in response to the City’s VA. This pilot program will provide near real-time information for decision makers who are responsible for monitoring the safety of the drinking water. In addition, it helps to identify water quality problems and provide quick response to potential contamination due to cross connection or terrorist attack. This pilot program provides an approach to integrate water quality data with utilities operational and infrastructure security that will ensure superior drinking water from source to end.  It will also provide data that allows more prevention when identifying a water quality problem that might become a major issue for our Utility customers.

 

The water quality parameters to be monitored through this pilot include PH, temperature, conductivity, total carbon, total chlorine, and dissolved oxygen. The system will report real-time water quality data and will be viewable through the City’s Supervisory Control and Data Acquisition (SCADA) system. The system will also be able to send an alert if any monitored water quality value is out of the normal range.

 

The scope of work includes design, test, installation, start-up, initial calibration and staff training. The services also include one year maintenance, including monthly calibration/cleaning all sensors, checking/replacing filters, verifying communication functionalities, and two (2) additional emergency site visits if necessary.

 

Due to the security sensitivity of the project along with the high tech nature of its integration with our SCADA system, the project will not be publicly bid, but the engineering consultant will solicit proposals and acquire the testing equipment.  Funding for the pilot system is available.

 

Staff recommends City Council authorize execution of a professional services contract between the City and Source Sentinel LLC for engineering services of the Water Monitoring System in an amount of $69,000.

Exhibits

 

 

May 2, 2008                                                             

 

Jessie Li, P.E.

Assistant Utilities Director

City of Sugar Land

111 Gillingham Lane

Sugar Land, TX  77487

Re: SourceSentinel Water  

       Monitoring System - Proposal

Dear Jessie Li:

 

As we discussed, we are pleased to submit this proposal for one SourceSentinel Water Monitoring System platform and a Statement of Work for the installation and integration of 24/7 “real-time” SourceSentinel Intelligent Water Quality monitoring systems. The additional monitoring system and subsequent future systems will help the City of Sugar Land maintain over-all water quality monitoring as well as a decision tool for accessing possible water quality and security concerns.

 

We are confident that our system will allow the City of Sugar Land to benefit from a proactive program, enabling the City of Sugar Land to solve a problem before it becomes a major issue for your customers and the residents of Sugar Land. We believe you will see savings in labor, chemicals, response time and public relations associated with mitigating possible drinking water issues.

 

Upon reviewing the attached Statement of Work, we would like to discuss with you to further understand your requirements as well as your timing. We can certainly make changes to the Statement of Work and our system has enough flexibility to meet your requirements. We are committed to make this platform work to your expectations and provide you and your staff with valuable data management tools.

 

We will call you in the next few days to set up a time that we can define the next steps so we can move this project forward.

 

 

Respectfully,

 

 

 

Christopher Campbell

Attachment: Statement of Work

cc  TPMadden, P.E.

 

Statement of Work

City of Sugar Land Water Quality/Security

SourceSentinel Water Monitoring System

 

 

Background

The City of Sugar Land, (COSL) has expressed a need for a 24/7 automated water quality/security monitoring system that will help facilitate water quality/water security.  Through a simple, yet comprehensive technology with standard alarms, the SourceSentinel Water Quality monitoring systems will help maintain exceptional water quality/water security monitoring, and generate real time data for predictive modeling and remedial planning, all while protecting the COSL critical water infrastructure. The system consists of a self-contained environmentally sealed enclosure that houses the water monitoring instruments. The instrument communicates to an industrial standardized controller and is then sent out on the COSL radio network. For a representative picture, refer to below figure. This monitoring system can be expanded at any time and is easily upgraded to any sensor that the COSL choices to implement in the future. The location of the SourceSentinel Water Quality monitoring system will be strategically placed based on vulnerability assessments and COSL Public Work’s knowledge.


Objectives

In order to achieve optimal performance while meeting the goals for COSL, Source Sentinel LLC will provide one (1) SourceSentinel Water Quality monitoring system that includes continuous real-time monitoring of various water parameters at a remote site (to be selected by COSL). Any system provided by Source Sentinel will communicate for remote viewing a continuous (24/7) near real-time data of all parameters measured by the system. The system will integrate all measured data in a repository database provided by the Source Sentinel controller. This will allow for real time viewing and downloadable reports to be generated, for current and retrieval of historical system information. The SourceSentinel Water Quality monitoring system will be integrated into the COSL provided server system, viewable as display screens in your current SCADA system.

 

Ř      Basic General Water Quality Platform

Source Sentinel LLC shall measure water quality parameters that consist of temperature, pH, dissolved oxygen, conductivity, Chlorine, Total Carbon, and turbidity. The system will report current data values and will be viewable through a “drill down” menu at the COSL SCADA facility location. Sources Sentinel will also report a color-coded alert any sensor value(s) that are out of normal range at remote viewing location. COSL water quality personnel will define the normal and abnormal ranges. A chlorine analyzer specified by COSL will be also integrated into this platform system. The cost for this general water quality-monitoring platform is as follows:

 

·        General Water Quality Platform  $64,000 per platform

 

Sensor Platform Features

All electronics, plumbing, wiring, and labor necessary to provide the functionality for the associated sensor platform will be mounted in a powder coated metal enclosure, with a main On/Off power switch. Each enclosure shall include:

 

    1. 1 Allen-Bradley programmable logic controller (PLC) and associated power supply.
    2. 1 HydroLab DS5X water sensor sonde with sensor probes for pH, temperature, conductivity, dissolved oxygen and turbidity.
    3. 1 chlorine analyzer setup to measure free chlorine.
    4. 1 Optek Total Carbon analyzer that measures by UV-254 absorption.
    5. All necessary modules for transmitting sensor  data via COSL provided communication network
    6. All labor necessary to integrate, fabricate and test enclosure system.
    7. Individual power control for each instrument.
    8. All regulators, manifolds, fittings, flow meters, etc. required for providing optimized flow of parallel water samples to all sensors.
    9. Strategically located shutoffs and manifold system.
    10. All wetted parts shall be of corrosion resistant 304SS (or equivalent) stainless steel or a compatible inert material.
    11. Inlet & Outlet pressure sensors for determining filter cleanings and water flow issues.
    12. Visible equipment status indicators external to the electronics enclosure.
    13. All brackets, valves, etc. required allowing for convenient sensor maintenance and replacement.
    14. Price includes 2 days of installation, 2 days of startup/debug and 1 day training/ monitoring of system for COSL personnel.

Display Pages

Source Sentinel LLC shall develop, test, integrate and provide the display pages for the demonstration of current and historical sensor data, sensor status, sensor trending, and model statuses.  The display screens will be developed in WonderWare, the same platform that the COSL uses in their existing SCADA. The intent is to make the display screens to be easily integrated into existing SCADA platform by the COSL contracted integration support team.

 

PLC Software

Source Sentinel LLC shall develop, test, and integrate the software to be used in the PLC included with the SourceSentinel system. The PLC software is used only for communication to the various sensor manufacturers and resides in the enclosure. This software will be developed with WonderWare data historian platform package. In the future, this will make integration into an existing SCADA system easier as new and future systems are installed.

 

Installation, Start-Up, Initial Calibration and Training

The instrumentation and enclosure supplied by Source Sentinel LLC will be tested at the Source Sentinel’s Technology Center to assure proper calibration and operation. The fully populated enclosure will then be installed in the field and the operation verified. All calibrations and connections will be field validated and turned over for continuous 24/7 operation. We have included 5 days of on site services that will include installation, startup, initial calibration and training of COSL personnel. The SourceSentinel System will be provided with the appropriate manufacturers supplied documentation for all system components and a standard user’s guide for the installed system.

 

Organic Compound Monitoring/Security Alert

Source Sentinel shall measure the Total Carbon (TC) from the water matrixes and continuously display the information. By measuring the TC, Source Sentinel will be able to offer a general indication of an increase in organic compounds, which can be a prime indicator of contamination. The TC analyzer is a correlated UV-254 absorption method, that is more maintenance friendly and robust, but not an EPA approved method. The cost for this Option has been included in the platform price, due to the removal of the remote node viewing capability.

 

Ř      Option 1 – Yearly Service/Calibration/Maintenance

Source Sentinel will perform a calibration and routine maintenance program for a period of one (1) year after initial startup for proper performance of the SourceSentinel Water Quality monitoring system. Based upon past experience with these sensors, a calibration and maintenance performed monthly is adequate for optimal performance. We will calibrate/clean all general water quality sensors and the chlorine analyzer. Maintenance items to perform will be check/clean filter, check terminal connections and verify communication functionality. Our price also includes all necessary consumables to perform these operations, as well as two (2) emergency visits per year if necessary. The cost for this Option is as follows:

 

·        Yearly Service/Calibration/Maintenance program -$5000  (14 onsite visits)

 

 

Assumptions

  1. Delivery of the SourceSentinel Water Quality monitoring system cabinet will be to a site designated by COSL.
  2. Off-loading and placement of the cabinet will be the responsibility of COSL.
  3. Source Sentinel LLC will perform the termination of logistical infrastructure for the cabinet(s).
  4. COSL is responsible for providing piping and wiring connections to be terminated within 1 feet of the cabinet.
  5. Source Sentinel LLC will provide connection information pertaining to the required inlet & outlet pipe sizing, and main power.
  6. COSL is responsible for gravity drain of the wastewater produced by the SourceSentinel Water Quality monitoring system at any monitoring site and any applicable permits required.
  7. COSL is responsible for tapping a ˝ NPT connection with a minimum of 1.5 gal/min flowrate, with shutoff on the monitored supply pipeline.
  8. COSL will provide radio telemetry communications services for SCADA viewing, other than the PLC and modems included in the SourceSentinel Water Quality monitoring systems.
  9. COSL will provide the integration port and any corresponding display infrastructure for the SourceSentinel system to be viewed upon.
  10. This based upon standard connection to COSL LC3000 PLC to an existing SCADA structure and/or corresponding display screens.
  11. Any applicable communication infrastructure must be secured and maintained by COSL.


Data available from this monitoring platform are preliminary and have received little or no review. Inaccuracies in the data may be present as a result of instrument malfunctions, physical changes at the measurement site or other reasons not known.
Data users are cautioned to consider carefully the provisional nature of the information before using it for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences.
Source Sentinel. LLC provide no warranty, expressed or implied, as to the accuracy, reliability or completeness of monitoring data.