Note from TheGardeningSnail: Part of this post may have been produced by running a PDF Image File through a program that converts Image to Print. My apologies for any textual gremlins that may have crept in. I may also have broken up some of the longer paragraphs to make reading easier.
Meeting Date: June 21, 2016
AGENDA ITEM: Resolution Approving a Contract with Tesco Controls to Provide Programming and Integration Services to Add the Recently Installed Variable Frequency Drives (VFDs) at Wells No. 8 and 16 into the SCADA System.
MEETING DATE: June 21, 2016
PREPARED BY: Alfonso Manrique, Alternate City Engineer
REVIEWED BY: Odi Ortiz, Interim City Manager
City Council to adopt Resolution No. 2016-_, approving a contract with Tesco Controls for programming services to integrate the recently installed Variable Frequency Drives (VFDs) at Wells No. 8 and 16 into the City’s SCADA System.
Recent TCP sample results at Well No. 14 indicate a concentration that exceeds the response level (RL) established by the State Water Resources Control Board Division of Drinking Water (SWRCB-DDW).
If a chemical is present in drinking water that is provided to consumers at concentrations greater than the RL, the SWRCB-DDW recommends that the drinking water system take the source out of service.
The RL for TCP is established at 0.5 ppb or 100 times the notification level (NL). Sample results at Well No 14 indicate a concentration as high as 0.69 ppb.
The City has notified consumers about the presence of TCP in the groundwater provided by City’s wells. In addition, due to the elevated concentration of TCP at Well No. 14 the Interim City Manager ordered to remove Well No. 14 from service.
The elimination of Well No. 14 is causing significant variations in the distribution system pressure. The pressure swings create erratic responses by the SCADA to tum Wells on and off. The pressure variations are caused by the rapid changes in flow demands by Foster Farms and other large users.
In order to remove Well No. 14 completely from the system and avoid large variations in pressure staff recommends the installation of VFDs at Wells No. 8 and 16. Until the VFDs are furnished and installed, Well No. 14 must remain in operation for short periods of time to sustain pressure in the system.
This project is considered to be an emergency caused by the deterioration of the groundwater quality produced by Well No. 14. Well No. 14 is recommended to be permanently out of service until treatment is provided to remove TCP from the groundwater produced by this Well.
Considering the emergency nature of this project, City staff solicited proposals from three qualified contractors to furnish and install VFDs at Well Nos. 8 and 16. On April 16, 2016, Council awarded the supply and installation of VFDs to Telstar Instruments. The installation of the VFDs was recently completed.
The VFDs must be integrated into the City’s SCADA. Tesco Controls has provided a proposal for programming and integration services at Wells No. 8 and 16. The proposal is for a not-to-exceed amount of $30,000.
Tesco is the sole provider capable of performing these services because of the proprietary nature of the PLC.
The City had not budgeted for this expenditure, but it is considered to be an emergency caused by water quality deterioration at Well No 14. The cost for programming and installation is not-to-exceed $30,000. This expenditure will be paid using unspent O&M funds from FY 2015/16.
RESOLUTION NO. 2016-
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF LIVINGSTON DECLARING AN EMERGENCY IN THE WATER SYSTEM CAUSED BY THE DETERIORATION OF THE WATER QUALITY AT WELL NO. 14 AND APPROVING A CONTRACT WITH TESCO CONTROLS TO PERFORM PLC PROGRAMMING AT WELL NOS. 8 AND 16 AND AUTHORIZING THE INTERIM CITY MANAGER TO ISSUE A PURCHASE ORDER TO THE SELECTED CONTRACTOR
WHEREAS, the City of Livingston’s groundwater wells produce water with a TCP concentration in excess of the State’s Notification Level (NL) of 0.005 µg/1; and
WHEREAS, the groundwater quality from the City’s Well No. 14 has unexpectedly deteriorated and now produces water with a TCP concentration in excess of the State’s Response Level (RL) of 0.5 µg/1 (i.e. 100 times the NL); and
WHEREAS, the Division of Drinking Water recommends that a source be taken out of service when the RL for a particular constituent is exceeded; and
WHEREAS, removing Well No. 14 from production creates significant operational problems including the unexpected loss of pressure in the distribution system; and
WHEREAS, the unexpected loss of pressure in the distribution system is an emergency situation that poses a clear and imminent danger that requires immediate action to protect public health and prevent the disruption of public services (i.e. water service); and
WHEREAS, in accordance with Public Contract Code 20168, in case of an emergency, the legislative body may pass a resolution by a four-fifths vote of its members declaring that the public interest and necessity demand the immediate expenditure of public money to safeguard life, health, or property.
WHEREAS, in accordance with Public Contract Code 22050, in the case of an emergency, a public agency, pursuant to a four-fifths vote of its governing body, may repair or replace a public facility, take any directly related and immediate action required by that emergency, and procure the necessary equipment, services, and supplies for those purposes, without giving notice for bids to let contracts.
WHEREAS, the situation created by removing Well No. 14 from service was caused by the unexpected deterioration of the water quality and creates a serious threat to the public health; and
WHEREAS, the installation of Variable Frequency Drives at Well Nos. 8 and 16 will correct the temporary loss of pressure in the distribution system and correct the current emergency situation; and
WHEREAS, the City has installed VFDs at Well Nos. 8 and 16 on an emergency basis; and WHEREAS, the VFDs at Well Nos. 8 and 16 must be integrated into the City’s SCADA system; and
WHEREAS, the City Council of the City of Livingston hereby finds as follows:
A. Procurement of programming services at Well No. 8 and Well No. 16 has been performed m accordance with City requirements; and
B. The situation is considered to be an emergency and there is an urgent need to have the VFD equipment operational in order to remove Well No. 14 completely from service.
NOW, THEREFORE, BE IT RESOLVED, by the City Council of the City of Livingston as follows:
Section 1. The above recitals are true and correct findings of the Livingston City Council.
Section 2. The Interim City Manager is hereby authorized and directed to issue a purchase order to Tesco Controls for a not to exceed amount of $30,000.
Section 4. This Resolution shall take effect from and after the date of its adoption.
Section 5. Each portion of this resolution is severable. Should any portion of this resolution be adjudged to be invalid and unenforceable by a body of competent jurisdiction, then the remaining resolution portions shall be and continue in full force and effect, except as to those resolution portions that have been adjudged invalid. The City Council of the City of Livingston hereby declares that it would have adopted this resolution and each section, subsection, clause, sentence, phrase and other portion thereof, irrespective of the fact that one or more section, subsection, clause sentence, phrase or other portion may be held invalid or unconstitutional.
Passed and adopted this 21st day of June, 2016, by the following vote:
Rodrigo Espinoza, Mayor of the City of Livingston
I, hereby certify that the foregoing resolution was regularly introduced, passed and adopted at a Regular Meeting of the City Council of the City of Livingston this 21st day of June, 2016.
Antonio Silva, City Clerk of the City of Livingston