1437101-event.pdf

27 August 2026

27CRDLWBMBALM-0001 - Alum Applications at Casey Lake (Tama Co.)

*REBID*

The Iowa Department of Natural Resources (DNR) is requesting bids for conducting an aluminum sulfate and sodium illuminate treatment of Casey Lake, located within Hickory Hills Park, in Tama County.

27 August 2026

Open 8/27/2026, 8:00 AM CDT Type DNR - Request for Bid Close 9/4/2026, 10:00 AM CDT Number 27CRDLWBMBALM-0001 *REBID* Currency US Dollar

Sealed Until 9/4/2026, 10:00 AM CDT

Contacts Colton Lullmann colton.lullmann@dnr.iowa.gov

Commodity Codes None Added

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Objective: The Iowa Department of Natural Resources (DNR) is requesting bids for conducting an aluminum sulfate and sodium illuminate treatment of Casey Lake, located within Hickory Hills Park, in Tama County, Iowa.

Background information: High nutrient loading in Iowa lakes, particularly from phosphorus, has accelerated eutrophication and subsequently degraded water quality, impaired ecological health, and reduced recreational opportunities. As a result, many Iowa lakes experience frequent and widespread algal blooms, diminished water clarity, unpleasant odors, oxygen depletion, and fish kills, which have become common occurrences during the open-water season.

The Lake Restoration Program (LRP) has been working to develop new tools for managing phosphorus in lakes over the past five years, particularly those that are effective at treating internal phosphorus recycling. The LRP first worked with researchers from Iowa State University and the University of Wisconsin – Madison to better understand mechanisms for internal loading in Iowa Lakes (2020-2023 study) and develop strategies for managing different pathways of internal loading.

Casey Lake is a 38-acre lake in a 748-acre watershed, with most of the watershed located within the 723-acre Hickory Hills Park. The lake was constructed in 1970, coinciding with the overall development of the park. Hickory Hills Park provides recreational opportunities to the public including:

camping, cabins, fishing, electric only boating, hunting, scenic grass trails, animal exhibits, and shelters. The park is located in Tama County, but is owned and managed by the Black Hawk County Conservation Board (BHCCB).

Frequent and pervasive algal blooms, low water transparency, noxious odors, depletion of oxygen, and fish kills have been observed and are even common in Iowa lake systems during the open water season. The Lake Restoration Program (LRP) has been working to develop new tools for managing phosphorus in lakes, particularly those that are effective at treating internal phosphorus recycling. In 2021, DNR and BHCCB hired Shive Hattery to evaluate existing watershed BMPs within the park and develop a lake restoration plan, including a dredging feasibility study and modelling effort to show how different restoration practices (including an alum application) would reduce phosphorus concentrations in the lake. In 2026, watershed BMPs and in-lake restoration practices were completed and the lake refilled. Shive Hattery was also tasked with incorporating post-dredging sediment coring and analysis into technical specifications and an alum dosing plan (chemical inactivation of phosphorus) for the lake and three forebays. This is the final step in the ongoing lake restoration project at this lake. An alum application is needed to help reduce internal nutrient recycling in the lake and limit algae blooms in the lake - ultimately improving water quality and recreational opportunities.

This alum application will help inactivate phosphorus being released from the sediments at Casey Lake and improve overall water clarity and quality.

Internet website where contract terms and conditions are posted:

http://www.iowadnr.gov/InsideDNR/RFPBidLettings.aspx

It is advised to "Save Progress" often and especially after uploading documents.

NOTE: Anytime the Respondent opens their bid after the initial submission, they MUST certify and resubmit. No information will be lost from the initial submission.

NOTE: Respondent must approve and resubmit their Proposal after an amendment has been posted by the Issuing Officer. If the Proposal was submitted before the amendment, all information will be saved. The Respondent only needs to read and acknowledge the amendment.

Description

Instructions for Amendments: Answer the newly posted question in the Questions Section, and CERTIFY and SUBMIT your proposal again (if previously submitted).

Required to View Event

Prerequisites Required to Enter Bid

27 August 2026

1. Bidder shall read and make certifications of the their Bid.

2. Bidder shall read and authorize to release information for their Bid.

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Buyer Attachments

1. 27CRDLWBMBALM-0001 - IMPACS Project Invitation & Registration.pdf

2. 27CRDLWBMBALM-0001 - RFB FOR IMPACS.pdf

3. 27CRDLWBMBALM-0001 - Dosing Specs.pdf

4. 27CRDLWBMBALM-0001 - Dosing Plans.pdf

27 August 202627 August 202627 August 202627 August 202627 August 202627 August 2026 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xNDM3MTAxLTIwODY3Mzg4MDgyN0NSRExXQk1CQUxNLTAwMDEgLSBJTVBBQ1MgUHJvamVjdCBJbnZpdGF0aW9uICYgUmVnaXN0cmF0aW9uLnBkZg%3D%3D&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xNDM3MTAxLTIwODY3Mzg2MTUyN0NSRExXQk1CQUxNLTAwMDEgLSBSRkIgRk9SIElNUEFDUy5wZGY%3D&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xNDM3MTAxLTIwODY3Mzc2NzgyN0NSRExXQk1CQUxNLTAwMDEgLSBEb3NpbmcgU3BlY3MucGRm&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xNDM3MTAxLTIwODY3MzgyNjIyN0NSRExXQk1CQUxNLTAwMDEgLSBEb3NpbmcgUGxhbnMucGRm&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9

Questions Required Questions

Group 1: Form of Bid

Instructions: Bidder will read and answer the following questions. If there are exceptions to the terms, submit a question(s) in the Question and Answer Section with your exception.

1.1 Enter the Bidder's contact name, title, address, telephone number, and email address for questions regarding this solicitation.

1.2 Enter the Bidder's Sales Contact information.

1.3 Enter the Bidder's State or Foreign Country of Residence.

1.4 Enter the number of years the Bidder has been in business.

1.5 Number of years of experience with providing the types of goods and/or services sought by the solicitation.

1.6 Describe the level of technical experience in providing the types of goods and/or services sought by the solicitation.

1.7 List relevant examples of services similar to those sought by this solicitation that the Bidder has provided to other businesses or governmental entities.

1.8 The Bidder must provide resumes for all key personnel who will be involved in providing the goods and/or services contemplated by this solicitation. The following information must be included: Full Name, Education and/or Certification, Years of experience and employment history particularly as it relates to the requirements of the solicitation.

1.9 The selected service provider shall meet all of the technical specifications, both for equipment, method of application, and chemical specifications as described in Exhibit 1, Section 02 10 00 Casey Lake Water Alum Treatment.

1.10

The Bidder shall provide references from three (3) previous customers or clients knowledgeable of the Bidder’s performance in providing goods and/or services similar to the goods and/or services described in this solicitation. Enter a contact person, telephone number and email address for each reference. Fill out the text box. If the Bidder wants to attach reference letters in the Vendor Attachments Section, enter "see attached" in the text box.

Group 2: Terms and Conditions

Instructions: Bidder will read and answer the following questions. If there are exceptions to the terms, submit a question(s) in the Question and Answer Section with your exception.

2.1 Bidder shall read the Specification Terms and enter a response.

2.2 Bidder shall read the Terms and Conditions for SERVICES and enter a response.

2.3 By submitting a response, each bidder acknowledges its acceptance of the terms and conditions of the contract template “DNR Standard Contract Conditions” and “General Conditions” found at http://www.iowadnr.gov/About-DNR/RFP-Bid-Lettings

Group 3: Payment Terms

Instructions: Bidder will read and answer the following questions. If there are exceptions to the terms, submit a question(s) in the Question and Answer Section with your exception.

3.1 Payment Terms - Per Iowa Code § 8A.514 the State of Iowa is allowed sixty (60) days to pay an invoice submitted by a Bidder. Does the Bidder agree to the terms?

3.2 What discount will the Bidder give for payment in 15 days? Enter the discount in the text box. If none, enter zero.

3.3 What discount will the Bidder give for payment in 30 days? Enter the discount in the text box. If none, enter zero.

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Product Line Items Product Line Items

There are no Items added to this event.

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Service Line Items Service Line Items

1. Aluminum Sulfate Treatment at Casey Lake # Item Name, Commodity Code, Description Allow

Alternates Qty. UOM Requested Service Delivery

S1 Mobilization/Demobilization (Exhibits 1 and 2) - Spring 2027 Application 1 LS - Lump Sum

S2 Liquid Aluminum Sulfate (Alum) 2027 Application to Casey Lake 23,845 GAL - Gallon

S3 Liquid Sodium Aluminate 2027 Application to Casey Lake 11,923 GAL - Gallon

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