TAHOE INSTRUMENTS
1678 Indian Valley Road • Novato, CA 94947 • 415.599.9324 Voice • [email protected] E-Mail 14 April, 2023
Dept. of Infrastructure Maintenance & Operations
City of Richmond
440 Civic Center Plaza
Richmond, CA 94804
Attn: Mr. C. Capistrano
Facilities Maintenance Superintendent
Subject: Boiler Chemical Treatment
Cooling Tower Treatment
Hall of Justice
Library
Dear Mr. Vaz:
In accord with the 2023 BID specification, Boiler Chemical Treatment Services (including cooling towers), complying with all local City ordinances, including “Ban the Box Ordinance,” following is our bid detail:
STEAM BOILER WATER TREATMENT
To provide clean, non-corrosive steam to your buildings, we recommend our formulation Boiler Treat 7000, containing scale inhibitors, online descalers, and boiler corrosion inhibitors. To protect building piping, our formulation contains steam and return line treatment (amines).
While our program is in use, Tahoe Instruments will supply a doubly contained poly tank for chemical storage such as is pictured here. The tank (and agitator where installed), owned by Tahoe Instruments, is filled and maintained by Tahoe Instruments personnel so that City of Richmond employees do not receive, handle, or work with treatment chemicals.
Boiler conductivity controllers will be checked & calibrated as required on regular service calls to assure optimal boiler chemistry.
We certify that Boiler Treat 7000 qualifies for use under C.F.R. 173.310 (FDA and USDA certified) where steam may contact food and food products directly and incidentally, excluding milk and milk products, and that no ingredient is listed on Proposition 65.
WATER MANAGEMENT
Rx4H20
Attachment 3
CITY OF RICHMOND, CA 04/14/23
BOILER & COLING TOWER WATER TREATMENT Page 2 of 6
HOT WATER BOILER TREATMENT
We propose hot water boiler recirculating loop treatment with our formula CST-P. This treatment is designed to be added via pot feeder[s], currently installed. No ingredient is listed on Proposition 65.
COOLING TOWER TREATMENT
We recommend Tower Treat 2000 for control of scale & corrosion, and bromicide for biological control.
Doubly contained tanks as shown on Page 1 will be provided for use with our chemical program where suitable and chemical deliveries/setup will be done on regular service calls.
As is done for boilers, a cooling tower service report will be provided detailing the results of service calls and making recommendations as required to meet treatment targets.
Test kits and reagents will be provided on in-house testing of all treated cooling water.
MAINTENANCE
Per specification and as part of our bid, we include these maintenance items at no charge:
1) Boroscope treated boilers – Tahoe Instruments will record a boroscope of each treated boiler with the permission and assistance of City of Richmond to shut down the boiler and make it available for inspection.
2) Check control tree for occlusion – Tahoe Instruments will perform this maintenance when the boiler is down and verify when the boiler is next in operation to assure good operation of boiler controls.
3) Level control inspection – Tahoe Instruments will assist in evaluating the condition of boiler level controls so that reliable boiler operation is assured.
TESTING AND ANALYSIS
Your Tahoe Instruments representative will visit monthly to run a test scan of all treated water and equipment.
Between visits, good control of chemical levels, boiler blowdown, and softener operation will assure a trouble-free chemical program. Toward that end we recommend that you test steam boiler water for sulfite and conductivity, steam condensate for pH, and hot recirculating water for nitrite, weekly at a minimum. On-site test results are checked on our monthly service call.
TAHOE INSTRUMENTS
CITY OF RICHMOND, CA 04/14/23
BOILER & COLING TOWER WATER TREATMENT Page 3 of 6
Tahoe Instruments provides wet chemistry test kits, pH papers, and replacement reagents at no charge. No purchase orders are needed to maintain your reagent inventory – your Tahoe Instruments representative will supply reagents as required to your location.
For conductivity testing, you have a serviceable Myron L meter. Tahoe Instruments calibrates your meter on our regular service calls as needed.
A 3-ring binder is supplied with laminated test instructions, SDS's, treatment recommendations and other information on boiler operation on acceptance of our program. Log sheets are provided to record boiler water test results.
SERVICE & PRICES
We offer to provide steam and hot water boiler treatment, Library & Hall of Justice locations, for a monthly fee of $2083.33 , based on a system in good repair with approx. 95% condensate return and no steam boiler and hot water boiler system leakage. 1 year minimum term required. Fee will be invoiced monthly – a blanket purchase order for the full amount may be issued. Proposed treatment program will be in compliance with City of Richmond Insurance Requirements Type 1: Consultants & Contractors.
Our fee includes:
• All treatment chemicals required
• Freight to your facility
• Provision of on-site doubly contained chemical tanks (owned by Tahoe Instruments) • Filling of on-site tanks
• Lab services
• No less than monthly service calls by your Tahoe Instruments field representative During the service call, a comprehensive scan of all treated waters is performed with results recorded and recommendations made in writing. If in place, control equipment and softener are checked and calibrated for accurate performance. A service report is presented to personnel as you designate.
We believe it is important to maintain records of service reports and who has received them. We request that your on-site representative sign our service report on receipt - copies are distributed to the City of Richmond, my own file, and Tahoe Instruments' central file.
GUARANTEE OF PERFORMANCE
Tahoe Instruments warrants that our chemical program, when used as directed, will prevent scale and corrosion in your boilers. We make ourselves responsible for the waterside of treated equipment provided that our and your test reports so indicate that treatment is used as recommended, and that changes in operating conditions are reported to us promptly. We make it a point to stand on performance - not promises!
TAHOE INSTRUMENTS
CITY OF RICHMOND, CA 04/14/23
BOILER & COLING TOWER WATER TREATMENT Page 4 of 6
Mr. Capistrano, I believe the above is an accurate representation of our program, in keeping with our wish to be of service to you. If more information is required, please contact me at 415.302.9448 (cell).
Otherwise, I look forward to speaking with you after you have reviewed our information.
Sincerely Yours,
Michael Foley
President
MF/mem
Enc.
TAHOE INSTRUMENTS
CITY OF RICHMOND, CA 04/14/23
BOILER & COLING TOWER WATER TREATMENT Page 5 of 6
SCOPE OF WORK
STEAM BOILER TREATMENT
Vendor shall provide, at Vendor's expense, doubly contained chemical tanks for all liquid chemicals and mix tanks.
Vendor shall fill all boiler chemical treatment tanks at vendor's expense using vendor's labor so that City of Richmond employees do not handle, dispense, or become exposed to treatment chemicals.
Vendor shall, excepting chemicals being pumped from mix tanks, have no steam boiler chemical inventory present on City of Richmond property.
Vendor shall provide steam boiler chemical treatment sufficient to prevent scale and corrosion within steam boilers, steam lines, and steam condensate lines.
Vendor shall visit steam boiler locations monthly at a minimum, running chemical tests of boiler water and condensate, recording results as follows:
Boiler Water
Neutralized Conductivity
P Alkalinity
Total Alkalinity
Chlorides
Sulfite
Phosphate
Boiler Condensate
Conductivity
pH
Vendor shall calibrate and maintain installed conductivity controllers noting problems, if any, and providing problem resolution services.
Vendor shall maintain a photographic and boroscope visual record of the internal (waterside) surfaces of all boilers made available for inspection, photography and boroscoping to be done yearly at a minimum for all treated boilers subject to City of Richmond's availability of boilers for inspection.
HOT WATER BOILER TREATMENT
All conditions for Steam Boilers above shall apply, except that:
Hot Water Boiler treatment shall be a powder applied with pot feeder Up to one unopened 50 lb container may be kept on-site
Monthly chemical tests shall consist of Nitrite, Conductivity, and pH for treated hot recirculating water
TAHOE INSTRUMENTS
CITY OF RICHMOND, CA 04/14/23
BOILER & COLING TOWER WATER TREATMENT Page 6 of 6
SCOPE OF WORK
COOLING TOWERTREATMENT
Vendor shall provide, at Vendor's expense, doubly contained chemical tanks for all liquid chemicals and mix tanks when liquid chemical treatment is being applied to cooling towers.
Vendor shall fill all boiler chemical treatment tanks and/or equipment to apply solid cooling tower treatment at vendor's expense using vendor's labor so that City of Richmond employees do not handle, dispense, or become exposed to treatment chemicals.
Vendor shall, excepting chemicals being applied to cooling towers, have no cooling tower chemical inventory present on City of Richmond property.
Vendor shall provide cooling tower chemical treatment sufficient to prevent scale and corrosion within steam boilers, steam lines, and steam condensate lines.
Vendor shall visit cooling tower locations monthly at a minimum, running chemical tests of cooling water, recording results as follows:
Cooling Tower Water
Neutralized Conductivity
pH
Temp-c
Inhibitor Chemical Residual
Free Chlorine
Vendor shall calibrate and maintain installed conductivity controllers noting problems, if any, and providing problem resolution services.
Vendor shall maintain a photographic record of the internal (waterside) surfaces of all cooling towers made available for inspection, photography to be done yearly at a minimum for all treated cooling towers subject to City of Richmond's availability of cooling towers for inspection.
TAHOE INSTRUMENTS