Project Information

Bid Title

RFP - Grinder Pump System Installation for Half Bath Connection

Issuing Agency

City of Independence

Location

Kansas

Published Date

Feb 6, 2026

Closing Date

Mar 27, 2026

Government Level

State & Local

Status

Closed

Original Source

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Bid Documents

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Project Description

Bid Title:	RFP - Grinder Pump System Installation for Half Bath Connection
Category:	Park/Zoo/Cemetery
Status:	Open

Description: The City of Independence, Kansas (the “City”), is requesting proposals from qualified and licensed contractors for the design, furnishing, and installation of a sewer grinder pump system to serve a half bath restroom facility. The system will convey wastewater approximately 100 yards to an existing municipal sewer main located uphill from the structure. Location is the Garden House, at Riverside Park and the sewer main is located by the main restroom in the playground to the East of the Garden House. Publication Date/Time: 2/6/2026 8:00 AM Closing Date/Time: 3/27/2026 12:00 PM Contact Person: Scott Patton 620.205.7527 scottp@independenceks.gov Miscellaneous: A site visit is required prior to proposal submission. Please coordinate a time with Scott Patton by calling 620.205.7527 or scottp@independenceks.gov. Proposals shall be submitted electronically or in hard copy as follows: Electronic: davids@independenceks.gov Hard copy: City of Independence – 120 N. 6th – Independence, Ks. 67301 – Attn: Garden House Related Documents: RFP - Garden House Pressure Sewer

Attachment Preview

“Delivering Excellence”

Office of the Assistant City Manager

120 North 6th Street

Independence, KS 67301

REQUEST FOR PROPOSALS

Grinder Pump System Installation for Half Bath

Connection

Garden House

Riverside Park

INDEPENDENCE, KS. 67301

Posted on Website:

www.independence.gov/bids

February 6, 2026

RESPONSE DUE: Prior to 12 PM, March 27, 2026

Office of City Clerk

RFP – Garden House Grinder Pump

120 N. 6th Street

Independence, Ks. 67301

“Delivering Excellence”

Office of the Assistant City Manager

120 North 6th Street

Independence, KS 67301

Introduction: The City of Independence, Kansas (the “City”), is requesting proposals

from qualified and licensed contractors for the design, furnishing, and installation of a

sewer grinder pump system to serve a half bath restroom facility. The system will convey

wastewater approximately 100 yards to an existing municipal sewer main located uphill

from the structure. Location is the Garden House, at Riverside Park and the sewer main is

located by the main restroom in the playground to the East of the Garden House.

Project Overview:

The project consists of installing a complete grinder pump system capable of serving a half

bath (toilet and sink), including but not limited to the pump basin, grinder pump, discharge

piping, electrical connections, controls, and all associated appurtenances necessary for a

fully operational system.

Key project characteristics include: - Waste source: Half bath (toilet and lavatory sink) - Approxi-

mate discharge distance: 100 yards - Topography: Uphill/incline to sewer main - Connection

point: Existing municipal sewer main

Scope of Work:

The selected contractor shall provide all labor, materials, equipment, and permits required

to complete the project, including:

1. Site evaluation and verification of existing conditions

2. Design and sizing of an appropriate grinder pump system

3. Furnishing and installation of grinder pump basin and pump

4. Installation of force main piping from the pump to the sewer main

5. Electrical service, controls, and alarm system (audible and/or visual)

6. Connection to the existing sewer main in accordance with City standards

7. Restoration of disturbed areas

8. Startup, testing, and commissioning of the system

9. Provision of as-built drawings and system documentation

10. Training for City staff or owner, if applicable

Office of the Assistant City Manager

120 North 6th Street

Independence, KS 67301

“Delivering Excellence”

Technical Requirements

Proposed systems shall meet or exceed the following minimum requirements. Final sizing

shall be based on the proposer’s calculations and site-verified conditions. City of Inde-

pendence is under the 2018 Uniform Plumbing Code.

Design Basis (Minimum)

• Fixture load: one (1) water closet and one (1) lavatory (half bath).

• Estimated wastewater profile: intermittent, low-volume domestic sewage.

• Horizontal discharge distance: approximately 100 yards (≈300 linear feet) from

pump basin to connection point.

• Static lift: uphill to municipal main (proposer shall field-verify vertical rise and in-

clude in TDH).

Pump Performance Requirements

• Package grinder pump system rated for residential/light commercial pressure

sewer service.

• Minimum motor: 1 HP (higher HP acceptable if required by calculated TDH).

• Grinder pump shall be capable of handling raw domestic sewage and solids associ-

ated with a toilet and lavatory.

• The grinder pump and controls shall be capable of delivering, at a minimum:

o 25 gpm at the calculated Total Dynamic Head (TDH); and

o 10 gpm at TDH + 10 ft (design margin) or as otherwise justified by the pro-

poser.

• Proposer shall submit the following as part of the proposal:

o Pump curve clearly identifying the operating point;

o TDH calculation including static lift, friction losses, and minor losses;

o Assumed duty cycle and estimated run time per event.

Note: For installations of this nature, TDH commonly ranges between 40–90 feet, depend-

ing on vertical rise and pipe diameter. Proposers shall field-verify all assumptions.

Force Main (Discharge Piping) Requirements

• Provide a dedicated pressurized force main from the pump basin to the municipal

sewer main.

• Nominal pipe size:

o Preferred minimum: 1.5-inch pressure-rated pipe;

Office of the Assistant City Manager

120 North 6th Street

Independence, KS 67301

“Delivering Excellence”

o 2-inch pipe acceptable if proposer demonstrates adequate scouring velocity

at operating flow rates.

• Force main shall be designed to maintain a target velocity of 2–8 ft/s during pump

operation.

• Acceptable materials include:

o HDPE pressure pipe (e.g., SDR11/DR11) with heat-fused joints; or

o PVC pressure pipe (e.g., C900/C905 as applicable) with restrained joints.

• Provide bedding and backfill suitable for pressure piping and frost protection per lo-

cal practice.

• Install continuous tracer wire and detectable marking tape along the full length of

all non-metallic force main piping.

• Piping installed at a depth of 24” minimum.

Valves, Appurtenances, and Controls

The grinder pump system shall include the following minimum appurtenances:

• Check valve installed on the discharge line to prevent backflow.

• Isolation (shutoff) valve installed downstream of the check valve to allow mainte-

nance.

• Quick disconnects and/or unions to allow removal of the grinder pump without ex-

cavation.

• High-water alarm with local audible and visual indication.

• Pump failure alarm (may be combined with high-water alarm).

• Alarm devices shall be mounted in a readily visible and accessible location.

• Optional remote/telemetry alarm systems may be proposed as an alternate.

Electrical Requirements

• Provide a dedicated electrical circuit for the grinder pump system.

• Electrical installation shall comply with the National Electrical Code (NEC) and all

applicable local requirements.

• Provide a lockable disconnect means and weatherproof control panel/enclosure as

required.

• All electrical work shall be performed by a licensed electrician.

Sewer Main Connection

• Will be completed by the City of Independence, contractor responsible for exposing

the main and backfilling per City Standards.

Office of the Assistant City Manager

120 North 6th Street

Independence, KS 67301

“Delivering Excellence”

Contractor Qualifications

Proposers shall demonstrate:

• Experience with grinder pump installations of similar scope

• Proper licensing and insurance in the State of Kansas

• At least three (3) references for comparable projects completed within the last five

years

• Bid and performance bond for 100% of the contracted amount

Proposal Requirements

Proposals shall include, at a minimum:

1. Company information and primary contact

2. Description of proposed grinder pump system (manufacturer, model, specifica-

tions)

3. Narrative describing approach and methodology

4. Project schedule and estimated duration

5. Lump-sum cost proposal with itemized breakdown

6. Warranty information for equipment and workmanship

7. Proof of insurance and licensing

8. References

Evaluation Criteria

Proposals will be evaluated based on the following criteria:

• Technical approach and system suitability

• Contractor experience and qualifications

• Cost

• Schedule

• References

The City reserves the right to reject any or all proposals.

Schedule

• RFP Issuance Date: February 6, 2026

• Questions Due: March 13, 2026

• Proposal Due Date: March 27, 2026

Commodity Codes

• NAICS 237110Water and Sewer Line and Related Structures Construction
• NAICS 238210Electrical Contractors and Other Wiring Installation Contractors
• NAICS 238220Plumbing, Heating, and Air-Conditioning Contractors

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