Aquatic Monitoring, Water Quality and Vegetation Control Services

The City of Avondale is seeking a licensed and qualified Contractor to provide all material and labor required as described in the Scope of Work section on an as-needed basis for a period of one year, with four renewable one-year options, as set forth below. 

Project Details

• Reference ID: PRL 26-064
• Department: PARKS, RECREATION, AND LIBRARIES
• Department Head: BRYAN HUGHES (DEPARTMENT DIRECTOR)

Important Dates

• Questions Due: 2026-06-08T18:00:00.000Z
• Pre-Proposal Meeting: 2026-06-02T17:00:00.000Z — Locations will be visited in numerical order: 1. Alamar Park - 4155 S El Mirage Rd, Avondale; 2. Festival Field Lake - 101 E Lower Buckeye Rd, Avondale; 3. Park Avenue Plaza - 755 N 114th Ave, Avondale; 4. Friendship Park Lake - 12325 W McDowell Rd, Avondale

Evaluation Criteria

• Terms of Agreement —
  1. The resulting Contract shall become effective upon full execution by the City and shall remain in full force and effect for a period of one year thereafter, unless terminated earlier as provided herein.
  2. At the City’s discretion, the Contract created by this request and the resulting quotation will automatically renew for up to four successive one-year terms (each, a “Renewal Term”), unless the Contractor notifies the City in writing of its desire to terminate the Contract.  If extended, the then-current prices shall be applicable during the subsequent Renewal Term unless the Contractor notifies the City in writing of any rate increase 60 days before the expiration date and the City approves the increase with an authorized signature, prior to the end of the then-current term.
  3. By consenting to a Renewal Term, Contractor shall be deemed to affirmatively assert that (i) the City is not currently in default, nor has been in default at any time prior to the Renewal Term, under any of the terms or conditions of the Contract and (ii) any and all Contractor claims, known and unknown, relating to the Contract and existing on or before the commencement date of the Renewal Term are forever waived.
• Aquatic Monitoring, Inspection, and Reporting —

  Water Quality Testing and Monitoring

  The Contractor shall:

  Conduct routine water analysis, at a minimum of once per calendar month during a scheduled routine service visit, including testing for :

  • • pH
    • Temperature
    • Phosphates
    • Ammonia
    • Conduct quarterly testing for dissolved oxygen.
    • Report any unusual conditions to the City Representative.

  Additionally, the Contractor shall:

  • • Perform quarterly comprehensive testing including:
    • Ammonia
    • Metal content
    • Other necessary tests to ensure proper lake maintenance
    • Submit test results upon completion.

  Golden Algae:

  Contractor shall perform Golden Algae testing and closely monitor the lakes for the presence of Golden Algae twice a month during the months of October through April.

  • Upon detection:
    • Notify the City immediately.
    • Coordinate with Arizona Game and Fish Department.
    • Provide a written response plan within 48 hours.
    • Continue enhanced monitoring and provide updates until resolved.
• Data Collection and Reporting —

  The Contractor shall:

  • Provide monthly executive summary reports including:
    • Work performed
    • Equipment conditions
  • Submit reports within 48 hours after testing.
  • Provide an initial service schedule within four (4) days of award.
  • Maintain on-site check-in logs including:
    • Name
    • Signature
    • Date and time
    • Reason for visit

  The Contractor shall include photo documentation of each lake during each service visit, clearly showing current site conditions, including water surface and shoreline areas. 

• Service Frequency —
  • Summer (March–October):
    • Two (2) times per week
    • Service visits shall be scheduled to ensure consistent coverage throughout the week and shall not be performed on consecutive days unless approved by the City.
  • Winter (November–February):
    • One (1) time per month
    • Service visits shall be performed once per calendar month and shall not exceed thirty (30) days between service visits unless approved by the City.

  The Contractor shall coordinate service schedules with the City Representative. The City reserves the right to adjust service schedules as necessary to meet operational needs.

• Service Completion —

  The resulting Contract shall become effective upon full execution by the City and shall remain in full force and effect until the Contractor has completed all required services no later than [insert date], unless terminated earlier as provided herein.

• Aquatic Vegetation and Algae Control —

  Aquatic Vegetation Control (Cattails, Bullrush or any vegetation raising above the water line)

  Cattails, bulrush, and any vegetation extending above the waterline shall be treated as part of routine maintenance (bi-weekly from March through October, and once a month November through February). The contractor will be held responsible for ensuring that cattails, bulrush, and other aquatic vegetation are properly managed and do not become overgrown or unmanageable. Should aquatic vegetation reach an overgrown or unmanageable state, the contractor shall promptly rectify the issue at no additional cost to the City of Avondale.

  The Contractor shall:

  • Monitor and control cattails and algae at all locations.
  • Achieve and maintain effective control and prevent spread.

  Service requirements: For Algae

  • March–October:
    • Biweekly inspection and treatment
  • November–February:
    • Ongoing monitoring and treatment as needed

  Control expectations:

  • Implement proactive measures to contain and reduce growth.
  • Focus treatment on areas with active or established growth.
  • Demonstrate measurable progress toward reduction and control.
  • Adjust treatment methods and frequency as necessary.

  Methods may include:

  • Mechanical removal
  • Chemical treatment
  • Combination of both

  Additional requirements:

  • Use EPA-registered aquatic herbicides.
  • Follow all label requirements.
  • All labor, equipment, and materials are included in pricing.
  • No additional compensation for routine cattail control.
• Algaecide and Herbicide Applications —

  The Contractor shall:

  • Apply EPA-registered products to control algae and aquatic weeds.
  • Use additional products as needed to maintain water quality and appearance.

  The Contractor shall maintain:

  • Acceptable water color
  • Clarity
  • Overall aesthetic condition

  Pricing requirements:

  • All routine treatments are included in pricing.
  • Non-routine treatments require prior written City approval.
• Equipment Inspection and Maintenance —

  The Contractor shall:

  Inspect Aqua Masters piston pumps aeration equipment and system components:

  All pumps are the same at each location. Pictures below show aeration equipment. Number of pumps at each location are as follows:

  • Alamar Park - 3
  • Festival Field - 2
  • Friendship Park - 1
  • Park Ave/BLVD - 4

  

  •  Maintain:
    • Filters
    • Cooling fans
    • Airflow systems
  • Ensure proper system operation.

  Additional requirements:

  • Report any deficiencies or non-operational conditions to the City.
  • Obtain prior written approval for repairs or replacement parts.
• Floating Debris and Trash Removal —

  The Contractor shall:

  • Remove floating debris, trash, and organic material from the lakes during each service visit.
  • Remove debris from the water surface and shoreline areas to maintain the lakes are free of visible debris upon completion of each service visit. 
  • Arrange for and provide all transportation, handling, and disposal of collected materials.
  • Properly dispose of all collected materials in accordance with all applicable federal, state, and local regulations. 
  • All costs associated with debris removal, transportation, and disposal shall be included in the Contractor’s pricing.
• Project Locations —
  • Alamar Park – 4155 S El Mirage Rd, Avondale, AZ - Approximately 4.75 acres 

  

  • Festival Field Lake – 101 E Lower Buckeye Rd, Avondale, AZ - Approximately 4.75 acres 

  

  • Friendship Park Lake – 12325 W McDowell Rd, Avondale, AZ - Approximately 0.75 acres 

  

  • Park Avenue Plaza – 755 N 114th Ave, Avondale, AZ - Approximately 0.33 acres 

  

   

• Contractor Requirements —
  • Services shall be performed by a qualified biologist.
  • Contractor shall be a licensed pesticide applicator.
  • Applicators shall be properly certified.
  • All products must be EPA registered and used in accordance with labeling.

Submission Requirements

• Main Point of Contact (required) —

  Please provide a point of contact for RFQ for follow-up questions or notifications. (Name, email & phone number).

• Provide a brief summary of experience performing similar aquatic monitoring, water quality management, and vegetation control services for municipalities or public agencies. (required)
• Confirm ability to perform aquatic vegetation control, including cattail mitigation and control, in accordance with the Scope of Work. (required)
• Identify primary methods utilized (mechanical, chemical, or both). (required)
• Confirm ability to perform required water quality testing as outlined in the Scope of Work. (required)
• Identify whether testing is performed in-house or through a third-party laboratory. (required)
• Confirm services will be performed under the supervision of a qualified biologist. (required)
• Provide biologist's resume that shows his/her degree and experience in supervising. (required)
• SAM.gov Registration Status (required) —

  Is your firm currently registered and showing Active status in SAM.gov?

  Note: Vendor must be registered on System for Award Management (“Sam.gov”) before submitting an offer, provide a valid Unique Entity Identifier Number and continue to maintain an active SAM registration during which it has an active Federal award.

• Unique Entity Identifier Number (required) —

  Please provide your Unique Entity Identifier Number.

• Consequences of Non-Compliance with SAM.gov Registration Requirement (required) —

  Because this solicitation is funded in whole or in part with federal grant funds, you are required to be registered in SAM.gov with an Active status.  

  Failure to obtain and maintain an Active SAM.gov registration by the required deadline may result in your offer being deemed non-responsive, and the City may proceed with award to the next lowest, responsive and responsible offeror.

• Avondale Business License (required) —

  Businesses that are located in the City of Avondale are required to obtain and maintain City of Avondale business license.  Is your business located in Avondale?

• Please upload a copy of your business license (required)
• Please explain why a business license is not applicable. (required)
• W-9 (required) —

  Please upload a copy of your signed W-9 using the most current W-9 form.  Form W-9 (Rev. March 2024) (irs.gov) 

• Offer (required) —

  Please download the below documents, complete, and upload.

• Site Conditions Acknowledgement (required) —

  The Contractor acknowledges that it is responsible for reviewing the project locations, site conditions, lake sizes, and pictures associated with this solicitation prior to submitting a quotation. Failure to conduct a site visit shall not relieve the Contractor of the responsibility to perform the required services for the submitted pricing. 

• Offer Confirmation (required) —

  The Bidder hereby offers this Bid as an offer to contract with the City under the terms and conditions and certifies that Bidder has read, understands and agrees to fully comply with, and be contractually bound by, all terms and conditions as set forth in this Request for Quotations (“RFQ”), the Contract formed hereby and any amendments thereto, together with all Exhibits and other documents included as part of this Contract (the “Contract Documents”).

• Funding Source (required) —

  Is this a Federally funded project?

• Is it for one-time basis? (required) —

  Is this for an one-time purchase? (Template will show different "Term" based on if it's one-time purchase or as-needed)