1413544-event.pdf
PDF 318 KB Posted
- Attached to
- Alum Applications at Casey Lake (Tama Co. )
- Solicitation number
- 27CRDLWBMBALM-0001
- Issued by
- Taylor County, Iowa
About this file
This is a Request for Bid (RFB) issued by the Iowa Department of Natural Resources for an alum application project at Casey Lake in Tama County. The project involves two alum applications to reduce phosphorus concentrations in the lake and mitigate algal blooms caused by internal phosphorus loading from lake sediments. The solicitation (27CRDLWBMBALM-0001) was released on July 9, 2026, with bids opening on July 11, 2026, at 5:00 PM CDT and closing on July 29, 2026, at 11:00 AM CDT. Service line items include mobilization and demobilization for the fall 2026 application, 23,845 gallons of liquid aluminum sulfate (alum), and 11,923 gallons of liquid sodium aluminate. No site visits or bidders conferences are specified in the available documentation. The contract term is not explicitly stated in the file.
Bidders must submit proposals exclusively through the IMPACS Electronic Procurement System (JAGGAER ONE platform) and must register in advance if they do not maintain an existing account. Bidders are required to provide contact information, years of business experience, technical qualifications, resumes for key personnel, three references from previous clients, and acceptance of the Iowa DNR Standard Contract Conditions and General Conditions. Payment terms allow sixty days for state invoice payment per Iowa Code 8A.514, with bidders asked to provide any early payment discounts for 15-day and 30-day payments. Procurement inquiries should be directed to Colton Lullmann at colton.lullmann@dnr.iowa.gov or procurement@dnr.iowa.gov. The project represents a cost-effective restoration alternative based on feasibility studies conducted by environmental consultants and sediment core analysis completed in late 2025.
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Other files
| File | Type | Posted |
|---|---|---|
| 27CRDLWBMBALM-0001 - IMPACS Project Invitation & Registration.pdf | ||
| 27CRDLWBMBALM-0001 - RFQ FOR IMPACS.pdf |
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Text version
09 July 2026
27CRDLWBMBALM-0001 - Alum Applications at Casey Lake (Tama Co.)
This contract will include two alum applications at Silver Lake, located in Delaware County, Iowa, to reduce phosphorus concentrations in the lake(s).
09 July 2026
Released 7/9/2026 5:00 PM CDT Type DNR - Request for Bid Open 7/11/2026 5:00 PM CDT Number 27CRDLWBMBALM-0001 Close 7/29/2026 11:00 AM CDT Currency US Dollar
Contacts Colton Lullmann colton.lullmann@dnr.iowa.gov
Commodity Codes None Added
09 July 202609 July 202609 July 202609 July 202609 July 202609 July 202609 July 202609 July 202609 July 2026 mailto:colton.lullmann@dnr.iowa.gov
Objective: This contract will include alum application for Silver Lake (Delaware County), a priority restoration lake in Iowa, to reduce phosphorus concentrations in the lake and thereby decrease the frequency and intensity of algal blooms.
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.
In 2020, the LRP hired Shive Hattery and Limnotech to investigate restoration alternatives at Silver Lake, a small natural lake located in Delaware County, 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. As a part of this study, sediment cores were collected from the lake bottom to estimate the portion of the total phosphorus load that was attributed to internal loading. Additionally, a watershed model was utilized to determine the amount of phosphorus coming to the lake from the watershed. Silver Lake is a high priority for restoration, and the LRP has been working with the local community over 10 years to stabilize water levels in the lake and implement watershed best management practices to reduce phosphorus loads from the watershed. The study determined that an alum application program was the most cost effective and lowest risk restoration alternative for improving water quality. Silver Lake was re-cored in late 2025 to confirm alum and sodium aluminate quantities needed to develop an accurate dose for inactivating phosphorus being released from the sediments at Silver Lake.
This alum application program, spread over two doses, will help inactivate phosphorus being released from the sediments at Silver 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.
Instructions for Amendments: Answer the newly posted question in the Questions Section, and CERTIFY and SUBMIT your proposal again (if previously submitted).
Description
Required to View Event
Prerequisites Required to Enter Bid
09 July 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 - RFQ FOR IMPACS.pdf
09 July 202609 July 202609 July 202609 July 202609 July 202609 July 2026 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xNDEzNTQ0LTIwNTk4NTk5MTYyN0NSRExXQk1CQUxNLTAwMDEgLSBJTVBBQ1MgUHJvamVjdCBJbnZpdGF0aW9uICYgUmVnaXN0cmF0aW9uLnBkZg%3D%3D&auth=MDpBRVMyI0NQNVp4a2IvSnkxZDNIUm81TGpka2h4M0V4bkpBZDlVSkVFUnk5WnZrK2l5eGZjOVRGNkRHUlU9 https://bids01.jaggaer.com/apps/Router/PublicEventDownload?file=U291cmNpbmdldmVudC8xNDEzNTQ0LTIwNTk4OTg1MTEyN0NSRExXQk1CQUxNLTAwMDEgLSBSRlEgRk9SIElNUEFDUy5wZGY%3D&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) - Fall 2026 Application 1 LS - Lump Sum
S2 Liquid Aluminum Sulfate (Alum) 2026 Application to Casey Lake 23,845 GAL - Gallon
S3 Liquid Sodium Aluminate 2026 Application to Casey Lake 11,923 GAL - Gallon
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File details come from the government source that posted it. Updated .