Central Marin Sanitation Agency

The following are results from recent bids for contracts with CMSA. For a detailed bid list, click [checkbox]

Notes: Click on headers to sort by column;
(a): NTP - Notice To Proceed;
(b): Contract may be extended up to this date.

 

Contract Name Contract Type Est.Value Description Bid Open Date Awarded NTPa Projected or Actual Completion Contract Closeout
Aeration Blower Replacement Capital Improvements $467,338 Replace two of the four original single-speed Aeration blowers with more energy efficient high-speed, variable output turbine blowers. Compressed air is the oxygen source for the activated sludge process's Aeration Tanks. The original blowers were installed in 1984 and two of them are at the end of their service life. Project includes electrical, mechanical, programming, and control changes to support the new blowers and integrate them into the aeration system. 08/26/11 closed closed 8/5/12
Digester Improvement/FOG-F2E Capital Improvements $5,787,000 Replace each digester's floating steel cover with a membrane cover, replace the digesters' gas mixing system with a more efficient pump mixing system, replace the biogas filtration equipment with a more effective system that uses safer to handle materials, and construct a new FOG/F2E (Food to Energy) facility. 03/24/11 closed closed 1/14/2013
Administration Building Modifications Capital Improvements $568,200 Remodel existing women's locker room, Environmental Services storage, staff, and file spaces, create complete upgrade of administration building HVAC and fire alarm systems. Upgrade restroom plumbling fixtures throughout the treatment plant to meet latest MMWD water efficiency recommendtions. 07/06/10 closed closed 10/28/11 12/2/2011
Biotower Rotary Distributor Reconditioning Capital Improvement - Asset Management $91,000 Disassemble existing rotary distributor (spray) arms for Biotower No. 2, remove and replace turntable bearing and first layer of filter media, replace spray arms and rotating tower assembly. 10/01/09 closed closed 3/26/10 7/15/10
Outfall Interior Solids Removal Capital Improvements $289,420 Locate and uncover two Outfall diffuser section access ports, penetration dives to remove estimated 575 cubic yards of accumulated solids from interior of diffuser section, sidecast removed solids alongside diffuser section, extend 85 diffuser risers and replace 6 diffuser check valve assemblies. 04/28/09 closed closed 09/04/09 12/15/10
Emergency Generator and Dechlorination System Improvement Project Capital Improvement $96,100 Install eductor distribution system for sodium hypochlorite, install emergency lighting for Agency power generating facility, construct backup cooling system for emergency generator, improved instrumentation. 03/03/09 closed closed 7/29/09 12/15/09
Outfall Improvements Capital Improvements $550,450 Install internal WEKO seals on all 14 elastomeric connectors and 6 selected additional joints in Marine Outfall Pipeline. 05/14/08 closed closed

12/4/07

 3/31/09
Wet Weather Improvements Capital Improvement $35,550,000 Construct Rtaining Wall, Polymer Facility for Chemically Enhanced Primary Treatment, 2 new Primary Clarifiers, 2 new Chlorine Contact Station, Effluent Pump Station, and install new punch plate filter screens in Headworks, and various process improvements. 10/08/07 closed closed 4/10/10 8/15/10
Effluent Storage Pond Improvements Capital Improvement $1,234,430 Remove existing pond liner, inlet/outlet structures and ac pavement. Bench, compact and build-up embankment per contract. Install new inlet/outlet structures, pond liner and ac pavement. 04/27/07 closed closed 11/2/07 01/04/08
Roofing Improvements Capital Improvement $327,730 Replace built-up roofing and counterflashings on Headworks, Chlorination, Solids Handling and Digester Buildings 03/27/07 closed closed 6/15/07 8/14/07
Pond Drain Pump Replacement Capital Improvement $155,000 Replace pond drain pump and associated piping. 12/19/06 closed closed 9/3/07 11/13/07
Marine Outfall Inspection Inspection $100,510 Inspect entire interior length of marine outfall pipeline. 07/05/06 closed closed 3/13/07 04/17/07
Vactor Receiving Station Construction $474,000 Demolish and relocate/replace Vactor and RV/Septage Receiving Stations 06/06/06 closed closed 11/30/06 03/18/07
Indstrl Ctgs - Primary Clarifiers and Concrete Decks Construction $159,950 Repair and recoat metal parts in Primary Clarifiers No. 4 and 5. R&R concrete deck waterproof membrane /traffic coating system at Headworks and Aeration Basins. 06/06/06 closed closed 9/30/06 09/18/07
Polymer Feed System Upgrade Construction $531,000 Replace liquid polymer handling, mixing, and metering for biosolids dewatering. 04/04/06 closed closed 03/15/07 04/20/07
Diaphragm Metering Pumps (prepurchase) Equipment (Sole Source) $85,947.04 Supply 3 Milton Roy diaphragm metering pumps for injecting dilute polymer into centrifuge sludge feed 04/04/06 closed closed 7/31/06 04/20/07
Polyblend Polymer Activation Units (prepurchase) Equipment (Sole Source) $30,402.07 Supply 2 US Filter/Stranco Polyblend liquid emulsion polymer mixers 04/04/06 closed closed 5/31/06 04/20/07
Secondary Clarifier #2 and Miscellaneous Coating Construction $157,280 Secondary Clarifier #2, Biosolids Hoppers, & Concrete Deck Recoating 07/07/05 closed closed 11/30/05 2/28/06
Security Fence Extension & Gate Automation Construction $83,800 Extend security fence to enclose Administration Building and parking lots, automate front entry gates 02/01/05 closed closed 5/27/05 07/14/05
Cogen Engine Replacement Construction $1,800,000 Cogeneration Engine Replacement 07/30/03 closed closed 3/27/06 4/30/06
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