E2. 2025 Inflow and Infiltration Project Bid RecommendationCITY 7tial�.
KALISPELL
MEMORANDUM
To: Doug Russell, City Manager
Cc: Susie Turner, PE — Public Works Director
From: Keith Haskins, PE City Engineer, Deputy Public Works Director
Re: 2025 Inflow and Infiltration Mitigation Project
Meeting Date: December 16, 2024
BACKGROUND: The City of Kalispell has identified several areas in the sewer collection
system that have root intrusion and infiltration issues. These areas require increased maintenance
efforts by the sewer division staff. This project includes furnishing labor, materials, and
equipment required to rehabilitate approximately 7,650 linear feet of existing sanitary sewer
main, ranging from 8" to 12" diameter and 207 vertical feet of manhole lining. Base Bid & Add
Alternatives were broken out as follows.
• Base Bid - 3rd Alley W - Center to 5th St
• Additive Alternate A - 4th Alley E - 5th St to 1 lth St
• Additive Alternate B
• Additive Alternate C
• Additive Alternate D
6th Alley W - 2nd St to 6th St
Storm Addition E/W Alleys
Storm Addition N/S Alley
BIDDING RESULTS: Bids were received and opened on December 5, 2024, at 1:30 pm. A
summary of the bids received are provided below.
Bidder
Base Bid
Add Alt A
Add Alt B
Add Alt C
Add Alt D
Total
Standard
Drain
Cleaning,
78,135.50
$108,134.25
$83,919.00
$75,051.00
$79,597.75
$424,837.50
LLC
Vortex
Services
$192,950.00
$215,950.00
$172,950.00
$150,000.00
$155,950.00
$887,800.00
Iron Horse
$201,934.00
$270,709.00
$205,740.00
$145,108.00
$169,229.00
$992,720.00
National
Power
Rodding
$230,500.00
$273,135.00
$214,680.00
$346,860.00
$200,927.00
$1,266,102.00
Co
Whitaker
Construction
$252,475.00
$263,088.00
$200,305.00
$151,076.00
$184,466.00
$1,051,410.00
Engineer's
Estimate
$153,700.00
$168,550.00
$65,922.00
$93,400.00
$124,585.00
$606,157.00
Page 1 of 2
Standard Drain Cleaning, LLC submitted the lowest bid but lacked sufficient references to
demonstrate adequate experience for the work. They provided one relevant project reference,
which was positive. To address their limited experience, they are subcontracting the slip lining
portion of the project to National Power Rodding Corp. National Power Rodding Corp.
confirmed their agreement to perform the slip lining work as a subcontractor. References for
National Power Rodding Corp. were reviewed and confirmed to meet the experience
requirements for projects of similar size and scope.
FISCAL EFFECTS: FY 25 Sewer Funds allocated $773,000 to support the 2025 Inflow and
Infiltration Mitigation Project as shown in Sewer Fund line item 9 5310-454-430630-962. This
project is also anticipated to utilize remaining SLIPA Grant funding from House Bill 355 to
supplement project costs.
ACTION REQUESTED: Motion to award the Base Bid and Additive Alternates A through D
of the 2025 Inflow and Infiltration Project to Standard Drain Cleaning, LLC for $424,837.50.
ALTERNATIVES: As suggested and approved by the City Council.
ATTACHMENTS: 2025 Inflow & Infiltration Mitigation Project Bid Tabulation
Page 2 of 2
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