HomeMy WebLinkAboutTIC 2017-06-13 Item 2E - Purchase - Multi-Channel Water Monitoring SystemCity of Tukwila
Allan Ekberg, Mayor
INFORMATIONAL MEMORANDUM
TO: Transportation & Infrastructure Committe
FROM: Bob Giberson, Public Works Director.•
BY: Pat Brodin, Public Works Manager
CC: Mayor Ekberg
DATE: June 9, 2017
SUBJECT: Purchase Multi - Channel Water Monitoring System
ISSUE
Committee approval of the purchase of capital equipment in accordance with City policy.
BACKGROUND
The City of Tukwila's purchasing policies require all unbudgeted capital equipment valued
over $5,000 be approved by Council Committee and the Mayor. This multi - channel water
monitoring system was not listed in the Water fund's capital machinery and equipment
budget for 2017, therefore it requires Committee approval.
The Department of Health requires that systems must measure their water distribution
system's disinfectant residuals in surface water at the same time and location that total
coliform bacteria are sampled in the water distribution system, or once per day, whichever is
greater.
Previously, Washington State Department of Health approved a regional monitoring plan for
Seattle Public Utilities to conduct this monitoring on behalf of all their wholesale water
distribution systems. This approval has now changed and the Department of Health is now
requiring each wholesale customer to conduct the required distribution residual monitoring.
As the City of Tukwila's water district is a wholesale water customer of Seattle Public
Utilities, the City will now be required to conduct the testing.
ANALYSIS
The Kuntze Multi- Channel Water Monitoring System will enable automated 24/7 monitoring
and data logging of chlorine residual within the City's water distribution system.
FINANCIAL IMPACT
The $7,704.40 purchase of the Kuntze Multi - Channel Water Monitoring System is within the
Water Fund's 2017 capital machinery and equipment budget of $25,000.
RECOMMENDATION
Committee approval to purchase the Kuntze Multi - Channel Water Monitoring System from
the sole source vendor, Correct Equipment in Redmond, Washington for $7,704.40.
Attachments: Department of Health 3/30/17 Letter
Invoice and flyer for the Multi- channel water monitoring system
W \Shared Copy Only i Pat \Info Memo Multi•Channel Water Monitorng System 060915 91 rrt dace
47
y0y
STATE OF WASHINGTON
DEPARTMENT OF HEALTH
NORTHWEST DRINKING WATER REGIONAL OPERATIONS
20425 72nd Avenue South, Suite 310, Kent Washington 98032 -2388
March 30, 2017
PAT BRODIN
TUKWILA WATER DEPARTMENT
600 MINKLER BLVD
TUKWILA, WA 98188
Subject: Tukwila Water Department (ID #89500)
King County
SWTR Monthly Report: Distribution System Chlorine Residual
Dear Pat Brodin:
RECEIVED
APR 0 5 2017
CITY OF TUKWILA
MINKLER SHOP
The Department of Health has taken a closer look at monthly surface water reports in follow up
to waterborne disease outbreaks that have occurred in the United States and Canada. As the
manager of a water system that purchases treated surface water you are responsible for
maintaining a detectible chlorine residual throughout your distribution system.
Previously, we had approved a regional monitoring plan for Seattle Public Utilities to conduct
this monitoring on behalf of all of their wholesale systems. This approval has now changed and
we are requiring each wholesale customer to conduct the required distribution residual
monitoring.
Maintaining a chlorine residual is an important protective measure for your system. It can help
prevent bacterial regrowth and protect your users from contamination by
• Treatment breakthrough,
• Leaking pipes, valves, and joint seals,
• Cross - connection and backflow,
• Unsecured openings in water storage tanks,
• Improper treatment of equipment or materials before and during main repair, and
• Intentional introduction of contaminants into distribution system.
Monitoring the residual on a regular basis helps you to identify problems that might put your
system at risk.
You have three requirements under the Drinking Water Regulations (see applicable WAC
References below):
1. measure the chlorine residual within the distribution system on a daily basis and at the
same time and location as coliform sampling.
Public Health - Always Working for a Safer and Healthier Washington
18
;q48
2. maintain a detectible chlorine residual within the distribution system in at least 95
percent of the measurements taken each calendar month. Unless you have specially -
designed testing equipment such as continuous chlorine analyzers, detectible means a
minimum residual of 0.2 mg /L.
3. report the results of that monitoring to the Department of Health on a monthly basis.
Enclosed is a master copy of the current report form. Please make copies and start using it right
away. The monthly report is due by the tenth day of the following month.
In addition to the monitoring and reporting requirements, there are ongoing requirements for
routine verification (every 5 days) of continuous chlorine analyzers.
If you have questions or need technical assistance, please contact me at (253) 395 -6762 or by
email at Jolyn.Leslie@doh.wa.gov.
Sincerely,
4Q*`)*-
Jolyn Leslie, P.E.
Regional Engineer
Northwest Drinking Water Operations
Enclosure
cc: Public Health — Seattle & King County
Brietta Carter, PE — DOH
WAC References
Maintaining a residual — WAC 246 - 290 - 692(5)
Monitoring — WAC 246 - 290 - 694(8); WAC 246 - 290- 300(2)(b)
Reporting — WAC 246 - 290 - 696(4)
Verification of continuous analyzers — WAC 246 - 290 - 638(5)
Rr'fl� �VED
APR 0 5 2017
CITY OF TUKWILA
MINKLER SHOP
49
Equiprnent °
14576 NE 95th St
Redmond, WA 98052
877 -371 -4555
Name / Address
City of Tukwila
Sewer District
600 Minkler
Tukwila, WA 98188
Quote
Date
Quote #)
4//28/2017
3329
Job Name
Terms
step
Project
Net 30
HT
Item
Description
Qty
Cost
Total
Kuntze
Freight
Kuntze
Part# 70153000KI
Kryptoni14 Multi Chlor /pH - Stabiflow
Measuring system for free chlorine, chlorine dioxide,
ozone or hydrogen peroxide with automatic pH &
temperature compensation.
Includes:
* Neon® Multi chlorine /pH
* Argon® Stabiflow
* Zirkon® FTG
* Zirkon® DES
* Zirkon® pH
Features:
* 5 mA outputs
* ASR - Automatic Sensor Cleaning
* PID Control
* Automatic Sample Flow Control to 30 I/hr.
Freight Estimate (prepay and add) * * ** *Freight is only
Estimated and will be adjusted upon delivery. Please note:
Your freight charges may differ from the freight estimated
Optional Adder
Conductivity Probe and Chamber
Tukwila
1
1
1
5,500.00
54.00
1,450.00
10.00%
5,500.001'
54.00T
1,450.00T
700.40
Total $7,704.40
Toll Free: 877 -371 -4555
www.correctequipment.com
Fax: 425-869-1033
50
Krypton® Multi
KUNTZE
Multi channel water
monitoring system
Controlled and reliable measurements driven by
Kuntze Krypton systems. The measuring system
includes all customers need for disinfectant
measurement: instrument, sensors, assembly and
cables.
The Krypton'' Multi is a measuring system for
disinfectant, pH and temperature - optional ORP and
5th measuring input (CI_„ TCI or conductivity).
Kuntze Krypton Multi are delivered fully assembled
and ready to use.
Neon° Multi`s water measurement process can be
controlled at any time, from any place, on any device
via Kuntze's Cloud Connecff service.
All Kuntze products are Made in Germany.
Parameter
Disinfectants
• Free chlorine, chlorine dioxide:
0.. 5.00 / 10.00 / 20.00 mg /I
• Ozone:
0.. 5.00 / 10.00 mg /I
• Hydrogen peroxide
0.. 30.00 mg /I
pH
• 0 -14.00 pH
Temperature
• 0..50.0 °C /32.0.. 122 °F
ORP (optional)
• - 1500.. +1500 mV
5'h measuring input (optional)
Total Chlorine:
• 0.. 10.00 mg /I
or conductivity:
• 0 - 100,0 mS /cm
Digital inputs
• Flow control, external controller stop,
2x level control, activation 2rtl od 3 , control para-
meter set
StabiFlow®
StabiFlow® is an assembly for precise measurement
of disinfectants. Values are:
• Constant flow of approx. 30 l/h
• Stable, precise and reliable measurements
• Increased life expectancy of the electrodes
Cloud Connect®
Controlled water measurement process at any time,
from any place, on any device. The solution is Kuntze
Cloud Connect® service.
ASR®
ASR is our patented automatic sensor cleaning
process.
• It keeps the electrode surfaces clean and
reduces maintenance efforts automatically
• ASR'' is available for measurement of
free chlorine, chlorine dioxide,
ozone and hydrogene
peroxide
Cost reduction due to Tess
maintenance
• No manual cleaning
• No refill of chemical or
physical agents
• Strongly reduced calibration
demand
CLEAR. CONTROL. CONNECT.
KUNTZE.COM51