6.3. ERMUSR 01-13-2004 Elk River
Municipal Utilities
322 King Avenue phone: 763.441.2020
Elk River,MN 55330 Far:763.T1.S099
January 7, 2004
To: Elk River Municipal Utilities Commission
John Dietz
Jerry Takle
James Tralle
From: Bryan Adams
Subject: Water SCADA System
The 2004 water capital budget contains a$200,000 item for control upgrades and
Supervisory Control And Data Acquisition (SCADA), system. Staff is seeking
authorization to proceed with this project.
As we have been adding water towers, wells, and water treatment plants to our system,
we are using the Allen Bradley (AB), control package instead of the obsolete Aquatrol
System. We have also been changing communication radio frequencies from 456.28750
UHF to the 900 MHZ frequency system. Currently, about half of our facilities utilize the
Aquatrol Control System while the newer facilities utilize the AB system. It is time to
completely retire the Aquatrol Control System and upgrade to the AB system. In the
process of upgrading the system control package, it is easy to incorporate the SCADA
package.
The SCADA system provides real time information on system operation, (pressure, flow,
etc.) along with equipment status (on, off, equipment failure, security, etc.). The attached
sheets reflects inputs and outputs of the proposed system. Our water system is getting big
enough and complicated enough to justify real time data, for ease of operation and
trouble shooting in case of equipment failure. This information will also aid in future
facility expansion planning.
Through the bid process on our previous project, Automatic Systems Company has
always been low bidder and installed the AB Control System. We do not wish to place
the remaining portion of the control packages out for bid in fear of getting a different
system integrate, with slightly different material and operation philosophy. Automatic
Systems Company does provide a good product. Automatic Systems Company will
furnish the necessary materials for under$50,000 to satisfy the Minnesota bid laws.
Their portion of the programming will be done as a professional service. We will
contract with a local electrician to do the necessary hard wiring, antenna masts, etc. I
have consulted with our auditors about these contract arrangements and they are
comfortable with it.
Staff recommends authorization be given to proceed with the Control/SCADA system
with a cost not to exceed $200,000.
Elk River Municipal Utilities
SCADA System Input/Output Water&Electric
Current
SCADA
Number Location Device Digital Analog Tag Meter Status
1 Well#2 Well Pump on/off 1 yes
Aquatrol Chlorine Boster Pump on/off 1 no
Potassium Permanganate Pump on/off 1 no
Othropolyphosphate Pump on/off 1 no
Plant Flow Rate 1 no
System Pressure 1 no
Chlorire Alarm 1 no
Door Alarm I no
Spare 5 3
11 5
2 Well#3 Well Pump on/off 1 yes
Aquatrol&AB Chlorine Boster Pump on/off 1 no
Potassium Permanganate Pump on/off 1 no
Othropolyphosphate Pump on/off 1 no
Plant Flow Rate 1 no
System Pressure 1 no
Chlorine Alarm 1 no
Door Alarm 1 no
Spare 5 3
11 5
3 Freeport Water Tower
Water Tower Level&System Pressure 1 no
Aquatrol High Level Alarm 1 yes
Low Level Alarm 1 yes
High LevelSettings 1 yes
Low Level Setting 1 yes
Well Pump On 1 yes
Well Pump Off 1 yes
Door Contact 1 no
Spare 5 2
PRV Station High Pressure 1 no
None Low Pressure 1 no
Flow 1 no
PRV Status 1 no
Water Level Alarm 1 no
Door Contact 1 no
Spare 5 5
16 13
Page 1 of 6
Elk River Municipal Utilities
SCADA System Input/Output Water&Electric
Current
SCADA
Number Location Device Digital Analog Tag Meter Status
4 Well#4
Well#4 Well Pump on/off 1 yes
AB Chlorine Boster Pump on/off 1 no
Potassium Permanganate Pump on/off 1 no
Othropolyphosphate Pump on/off 1 no
Plant Flow Rate 1 yes
System Pressure 1 no
Chlcrine Alarm 1 no
Door Alarm 1 no
Spare 5 3
Gary St Tower Level 8 System Pressure 1 yes
Controlled @well#4 High Level Alarm 1
Yes
Low Level Alarm 1 yes
High LevelSettings 1 yes
Low Level Setting 1 yes
Well Pump On 1 yes
Well Pump Off 1 yes
Door Contact 1 no
Spare 5 2
19 10
5 Well#5
Well#5 Well Pump on/off 1 yes
AB Chlorine Boster Pump on/off 1 no
Potassium Permanganate Pump on/off 1 no
Othropolyphosphate Pump on/off 1 no
Plant Flow Rate 1 yes
System Pressure 1 no
Chlorine Alarm 1 no
Door Alarm - 1 no
Spare 5
Well#9(future) Well Pump on/off 1
Plant Flow Rate 1
System Pressure 1
Aubum St Tower Level 8 System Pressure 1 yes
Controlled @ well#5 High Level Alarm 1 yes
Low Level Alarm 1 yes
High LevelSettings 1 yes
Low Level Setting 1 yes
Well Pump On 1 yes
Well Pump Off 1 yes
Door Contact 1 no
Spare 5 3
20 10
Page 2 of 6
Elk River Municipal Utilities
SCADA System Input/Output Water&Electric
Current
SCADA
Number Location Device Digital Analog Tag Meter Status
6 Well#6
Well#6 Well Pump on/off 1 yes
AB Chlorine Boster Pump on/off 1 no
Potassium Permanganate Pump oNoff 1 no
Othropolyphosphate Pump on/off 1
no
Plant Flow Rate 1 no
System Pressure 1 no
Chlcnre Alarm 1
no
Door Alarm 1
no
Spare 5 3
11 5
7 Well#7
Well#7 Well Pump on/off 1 yes
AB Chlorine Boster Pump on/off 1 no
Potassium Permanganate Pump oNoff 1 no
Othropolyphosphate Pump on/off 1 no
Plant Flow Rate 1 no
System Pressure 1 no
Chlorine Alarm 1 no
Door Alarm 1
no
Spare 5 3
Well#8(future) Well Pump on/off 1
Plant Flow Rate 1
System Pressure 1
12 7
8 Johnson St Water Tower
Water Tower Level&System Pressure 1 Yes
AB High Level Alarm 1 yes
Low Level Alarm 1 yes
High LevelSettings 1 yes
Low Level Setting 1 yes
Well Pump On 1
yes
Well Pump Off 1 yes
Door Contact 1 no
Spare 15 9
18 12
•
Page 3 of 6
Elk River Municipal Utilities
SCADA System Input/Output Water&Electric
Current
SCADA
Number Location Device Digital Analog Tag Meter Status
9 Meadowvale PRV/Booster Station
PRV/Booster High Pressure 1 no
None Low Pressure 1 no
Flow 1 no
PRV Status 1 no
Fire Pump Status 1 no
Booster Pump#1 Status 1 no
Booster Pump#2 Status 1 no
Water Level Alarm 1 no
Door Contact 1 no
Spare 5 5
11 8
10 175 Ave PRV/Booster Station
PRV/Booster High Pressure 1 no
None Low Pressure 1 no
Flow 1 no
PRV Status 1 no
Fire Pump Status 1 no
Booster Pump#1 Status 1 no
Booster Pump#2 Status 1 no
Water Level Alarm 1 no
Door Contact 1 no
Spare 5 5
11 8
11 Perkins Booster Station (Scads wilt be added In the future)
Booster Station High Pressure 1 no
None Low Pressure 1 no
Flow 1 no
Fire Pump Status 1 no
Booster Pump#1 Status 1 no
Booster Pump#2 Status 1 no
Water Level Alarm 1 no
Door Contact 1 no
Spare 5 5
10 8
Future Well#8 Well Pump on/off 1 no
System Pressure 1 no
Spare 2 2 no
3 3
Future Well 9 Well Pump on/off 1
System Pressure 1
Spare 2 2
3 3
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