Addendum 1 & Pre-bid.pdf

Division of Soil Conservation and Water Quality

Cover Sheet

To: All plan holders From: Tracy Blocker, Division

Pages: 19 pages Phone: 515-344-6279

Re: Ham892326B Nutrient Reduction Wetland (Bid 26-03) Date: May 14, 2026

Comments: Page

• Cover Sheet 1

• Addendum No. 1 with Attachments 1 , 2 and 3 2-13

• Pre-Bid Meeting Minutes 14-17

• Pre-Bid meeting attendance list 18

• Updated plan holders list 19

• Electronic files for grading can be obtained by e-mail by contacting Brandon Short with Bolton &

Menk at 515-509-9296 or brandon.short@bolton-menk.com.

- END OF COVER PAGE -

May 6, 2026

Division of Soil Conservation and Water Quality 1305 E Walnut Street Des Moines, IA 50319

TO: Prospective Bidders

Subject: Addendum No. 1 to Bid Documents HAM892326B Nutrient Reductionl Wetland Project – Bid No. 26-3 Hamilton County, Iowa

This addendum forms a part of the bidding contract documents and modifies the original bidding documents posted on April 16, 2026. An updated bidding form, Document CC.– Proposal and Schedule of Prices is attached with the addendum acknowledged. This updated bidding form must be used for 26-3 and all bidders must acknowledge this addendum on Page CC-2. FAILURE TO DO SO WILL SUBJECT BIDDER TO DISQUALIFICATON.

Description:

DOCUMENT CC– PROPOSAL AND SCHEDULE OF PRICES, 26-3 (See Attachment No.1) Please use the updated Document CC, to acknowledge Addendum No. 1 (See Attachment No. 1):

Plans (See Attachment No. 2) The quantity for Bid Item #3 “Structural & Channel Seeding” has been updated to 0.4 AC and Bid Item #4

“Buffer Seeding” has been updated to 21.1 AC. Attached are revised Plans C.01 and K.01.

Specifications (See Attachment No. 3): Specifications CS IA-011 “Removal of Water” has been added.

Specifications CS IA-011 “Removal of Water” is now included as part of the project. Dewatering work and costs are subsidiary and will be incidental to the project work items. No additional payment will be made for dewatering the project site and work items.

See revised Specifications Table of Content and CS IA-011.

Sincerely, Sara Smith, P.E.

Water Resources Bureau

Attachment No. 1 – Updated Document CC Attachment No. 2 – Revised Plans C.01 and K.01.

Attachment No. 3 – Specification CS IA-011 “Removal of Water”

End of Addendum No. 1

HAM892326B Nutrient Reduction Wetland Project DOCUMENT CC – Attachment 1 Bid No. 26-3 PROPOSAL AND SCHEDULE OF PRICES

Time and Date for Bid Submissions: 3:00:00 PM, 05/20/2026

BIDDER LOGIN

https://solutions.sciquest.com/apps/Router/SupplierLogin?CustOrg=DASIowa

Time and Date of Bid Opening: 3:00 PM, May 20, 2026 Bid Opening TEAMS: +1 469-998-7627, 771541789#

Project Description and Location: HAM892326B Nutrient Reduction Wetlands Project Section 26, Township 89 North, Range 23 West Hamilton County, Iowa

PROPOSAL AND SCHEDULE OF PRICES

Proposal of ___________________________________________________________________________________________ (PRINT Name of Bidder: COMPANY & CONTACT)

Located at ( ) (FULL Mailing Address) (Telephone Number)

Amount of

Proposal Guarantee

Description of Work Specified Completion Date Liquidated Damages

10% of Base Bid

All Work Except Seeding December 31, 2026 $175.00 Per Day

Seeding - Structure Seeding - Buffer

May 15, 2027 June 30, 2027

$125.00 Per Day

The undersigned hereby agrees, if awarded the contract, to execute the proposed contract and to furnish satisfactory Performance Bond in an amount not less than one hundred percent (100%) of the contract award within fourteen (14) days from the date when Notice-of-Award is received, and to provide all supervision, labor, materials, and equipment required to complete the project designated above, for the prices hereinafter set forth, in strict compliance with the Contract Documents prepared by the Division.

Further, the parties agree and acknowledge as follows:

The amount of loss or damages likely to be incurred by Division are uncertain and said loss is incapable or very difficult to quantify and estimate;

The amount specified for liquidated damages herein bear a reasonable relationship to, and are not plainly or grossly disproportionate to, the probable loss likely to be incurred by Division in connection with any delay on part of the Contractor;

The amount of liquidated damages fixed herein bears a reasonable relationship to Division’s anticipated losses and/or actual losses;

The amount of liquidated damages herein fairly approximates Division’s loss at the time of making of this Agreement;

The amount of liquidated damages fixed herein are fair and reasonable and it approximates to the extent possible the actual loss to Division as a result of any delay on the part of Contractor; and

Division and Contractor are sophisticated parties and negotiated this Agreement at arm’s length.

Now therefore, in consideration of the mutual obligations set forth herein, the receipt and sufficiency of which is hereby acknowledged, the parties agree as follows:

Contractor will commence the work after the Preconstruction Conference and by the Construction Start Date approved by Division in the Construction Progress Schedule.

Contractor will complete the work within the specified time period identified in the contract, or as amended, or be responsible for liquidated damages per day as set forth in the above table.

The liquidated damages may be withheld from payments made to the Contractor by the Division upon written notice that liquidated damages have begun to accrue, and such damages are in addition to other remedies available as provided for in this contract and applicable law.

A Proposal Guarantee in the amount stipulated herein is included with this proposal, to be forfeited to the Division, if the undersigned fails or refuses to execute the contract and furnish satisfactory Performance Bond, if awarded the contract.

By _______________________________________________ (Signed)

( PRINT NAME)

(Title) (Date)

In executing this proposal, Bidder acknowledges receipt of Addendum Number _1_ dated __May 6, 2026______

In executing this proposal, Bidder acknowledges receipt of Addendum Number _____ dated ____________________

In executing this proposal, Bidder acknowledges receipt of Addendum Number _____ dated ____________________

THE FOLLOWING AFFIDAVIT MUST BE COMPLETED AND NOTARIZED, OR THIS BID WILL BE REJECTED

AFFIDAVIT

The signatory, being duly sworn, does depose and say that the undersigned is an authorized representative of:

(Name of Firm)

Located at __________________________________________________________________________________ hereinafter referred to as “Bidder” and does hereby affirm to have personal knowledge that said Bidder has thoroughly examined the Contract Documents, carefully prepared the Proposal and Schedule of Prices form, and has checked the same in detail before submitting; and that said Bidder, or the agents, officers, or employees thereof, have not, either directly or indirectly, entered into any agreement, participated in any collusion or fraud, or otherwise taken any action in restraint of free competitive bidding in connection with this bid.

(Signed)

(PRINT name)

Subscribed and sworn to before me this _________ day of ________________________________, 20____

(Signed, Notary)

My Commission Expires _______________, 20______

Must include notary stamp

SCHEDULE OF PRICES

HAM892326B

Contract No. 26-3 Section 26, Township 89 North, Range 23 West, Hamilton County, Iowa

Name of Bidder:_____________________________________________________________________________

IMPACS

No.

B&M Item No.

Work or Material Spec No.

Est.

Unit Unit

Total Quantity Price

1 Site Stripping & Preparation IA CS-001 1 LS

2 Crop Damage IA CS-001 - - - -

3 Structure & Channel Seeding IA CS-006 0.4 AC

4 Buffer Seeding IA CS-006 21.1 AC

5 Mobilization and Demobilization IA CS-008 1 LS

6 Drain Tile Investigation and Removal IA CS-009 4 HR

7 Excavation (General) IA CS-021 19,671 CY

8 Earthfill (General) IA CS-023 1,464 CY

9 Reinforced Concrete Pipe - - - - -

A 12" Diameter IA CS-031 1,344 LF

B 15" Diameter IA CS-031 932 LF

C 18" Diameter IA CS-031 369 LF

10 Smooth Lined CPDT Pipe (15" Diameter) IA CS-046 1,579 LF

11 Tile Connection - 10" Dia. or Smaller IA CS-046 1 EA

12 Tile Connection - 12" Dia. or Larger IA CS-046 2 EA

13 Modified SW-513 Inlet Structure IA CS-031 1 EA

14 Modified SW-513 Outlet Structure IA CS-031 1 EA

15 SW-401 Concrete Manhole Structure IA CS-031 1 EA

Reinforced Concrete Apron, Footing, Bar Guard

A 12" Diameter IA CS-031 2 EA

B 15" Diameter IA CS-031 1 EA

17 Tied Concrete Block Mat IA CS-031 2,350 SF

18 Riprap (Class E) IA CS-061 33.3 TN

SUB-TOTAL BASE BID….……………………………………………………………………………$________________

IMPACS will have only 17 bid items listed.

Worksheet purposes only. Bids will only be accepted through the on-line Iowa Management of Procurement & Contracts System (IMPACS).

To register and learn about IMPACS, go to:

https://solutions.sciquest.com/apps/Router/SupplierLogin?CustOrg=DASIowa

END OF DOCUMENT CC

Attachment No. 2

Revised Plans C.01 and K.01

SHEET

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DESIGNED

DRAWN

CHECKED

CLIENT PROJ. NO.

DATEDESCRIPTION REV HAMILTON COUNTY, IOWA

HAM892326B NUTRIENT REDUCTION WETLAND

BCS

NVD

JPR

0A1.127685

1.1 BID PLANS 01-22-2026

R

1519 BALTIMORE DRIVE

AMES, IA 50010

Phone: (515) 233-6100 Email: Ames@bolton-menk.com www.bolton-menk.com

C.01

ESTIMATED QUANTITIES

Bid Item Sub - Item Description

Specifications Plan No.

Estimated Quantities

No. Page Quantity Unit or Select

1 - Site Stripping & Preparation IA CS-001 1.0 LS 2 - Crop Damage IA CS-001 0.0 AC 3 - Structure & Channel Seeding IA CS-006 0.4 AC 4 - Buffer Seeding IA CS-006 21.1 AC 5 - Mobilization and Demobilization IA CS-008 1.0 LS 6 - Drain Tile Investigation and Removal IA CS-009 4 HR 7 - Excavation (General) IA CS-021 19671 CY 8 - Earthfill (General) IA CS-023 1464 CY 9 - Reinforced Concrete Pipe

A. 12" Diameter IA CS-031 1344 LF B. 15" Diameter IA CS-031 932 LF C. 18" Diameter IA CS-031 369 LF

10 - Smooth Lined CPDT Pipe (15" Diameter) IA CS-046 1579 LF 11 - Tile Connection - 10" Dia. or Smaller IA CS-046 1 EA 12 - Tile Connection - 12" Dia. or Larger IA CS-046 2 EA 13 - Modified SW-513 Inlet Structure IA CS-031 1 EA 14 - Modified SW-513 Outlet Structure IA CS-031 1 EA 15 - SW-401 Concrete Manhole Structure IA CS-031 1 EA 16 - Reinforced Concrete Apron, Footing, Bar Guard

A. 12" Diameter IA CS-031 2 EA B. 15" Diameter IA CS-031 1 EA

17 - Tied Concrete Block Mat IA CS-031 2350 SF 18 - Riprap (Class E) IA CS-061 33.3 TN

SEEDING AREAS

BUFFER SEEDING 21.1 AC

STRUCTURE SEEDING 0.4 AC

801185 11

117211

117711

841186 11

79 1179

82 1183 11841184

SEED AREA OUTSIDE POOL TO EASEMENT

BUFFER SEEDING

SEED DISTRUBED/GRADED AREAS TO

1 FT BELOW NORMAL POOL

BUFFER SEEDING

DO NOT SEED POOL OR DIVERSION BERM

SEED FINAL SPOIL AREA

BUFFER SEEDING

SEED COVER BERM TO EASEMENT

BUFFER SEEDING

SEED INLET CHANNEL TO 1 FT

BELOW NORMAL POOL

STRUCTURE SEEDING

SEED SEPARATION BERM AND CONNECTION CHANNEL

STRUCTURE SEEDING

SEED PRIOR TO PLACING FLEXAMAT

SEED AREA OUTSIDE POOL TO EASEMENT

BUFFER SEEDING

PROPOSED EASEMENT BOUNDARY

RIP-RAP

BUFFER SEEDING

STRUCTURE SEEDING

LEGEND

SHEET

B ol to n

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6, A ll Ri gh ts

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DESIGNED

DRAWN

CHECKED

CLIENT PROJ. NO.

DATEDESCRIPTION REV HAMILTON COUNTY, IOWA

HAM892326B NUTRIENT REDUCTION WETLAND

BCS

NVD

JPR

0A1.127685

1.1 BID PLANS 01-22-2026

R

1519 BALTIMORE DRIVE

AMES, IA 50010

Phone: (515) 233-6100 Email: Ames@bolton-menk.com www.bolton-menk.com

K.01

SEEDING PLANFEETSCALE

0 100 200

HORZ.

HAM892326B Nutrient Reduction Wetland Project Bid No. 26-3

Attachment No. 3

Specifications CWS IA-011 “Removal of Water”

Natural Resources Conservation Service

Construction Specification 000 IA-11 Removal of Water

NRCS, IA SPECIFICATION IA CS-011, Page 1 of 2 February 2011

1. SCOPE

The work shall consist of the removal of surface water and ground water as needed to perform the required construction in accordance with the plans and specifications.

2. DIVERTING SURFACE WATER

The Contractor shall build, maintain and operate all cofferdams, channels, diversions, flumes, sumps, and other temporary protective works needed to divert surface water away from the construction site while construction is in progress.

3. DEWATERING THE CONSTRUCTION SITE

Foundations, cutoff trenches, borrow areas and other parts of the construction site shall be dewatered as needed for proper execution of the construction work. The Contractor shall furnish, install, operate and maintain all works and equipment needed to perform the dewatering.

4. EROSION AND POLLUTION CONTROL

Removal of water from the construction site, including the borrow areas shall be accomplished in such a manner that erosion and the transmission of sediment and other pollutants are minimized.

5. REMOVAL OF TEMPORARY WORKS

After temporary works have served their purposes and before the Contractor leaves the site, they shall be removed.

6. SPECIFIC SITE REQUIREMENTS

A. Measurement and Payment

Compensation for any work item described in the contract documents but not listed in the bid schedule will be included in the payment for the item of work to which it is made subsidiary. Such items and bid items to which they are made subsidiary are identified in Items of Work and Construction Details section of this specification.

For items of work which lump sum prices are established in the contract, the quantity of work will not be measured for payment. Payment for each item will be made at the contract lump sum price and will constitute full compensation for completion of the work.

For items of work for which specific unit prices are established in the contract, the payment will be made based on the approved quantity measured by the engineer or weight tickets. Payment will constitute full compensation of the work completed as defined by each work item.

B. Items of Work and Construction Details

1. Subsidiary Item - Dewatering

NRCS, IA SPECIFICATION IA CS-011, Page 2 of 2 February 2011

This item shall include all costs to divert, pump, dam or other means to dewater the site as needed to complete construction activities.

No separate payment will be made for Removal of Water. Compensation for this item shall be made subsidiary to other bid items requiring removal of water in order to complete.

HAM892326B - BID NO. 26-03

PREBID MEETING

April 20, 2026 - 9:00 AM

HAMILTON COUNTY WETLAND PROJECT

Tracy Blocker, Division of Soil Conservation and Water Quality (Division) opened the meeting.

A) Introductions

• Introductions

• There are three projects in addition to this one being bid at this time, one in Kossuth, and two in Calhoun being let as one contract.

• This wetland project is being funded as part of the Water Quality Initiative that is being used to help implement the Iowa Nutrient Reduction Strategy.

B) Bidding

1. Time of Completion:

The final date for completion of all work except for seeding is set for December 31, 2026. The final date for completion of seeding is May 15, 2027 for the structure and June 30, 2027 for the buffer.

2. Liquidated Damages:

There are liquidated damages provisions on this project. These damages reflect additional administrative, design, and inspection costs, as well as continued costs to the natural environment.

If all work except for seeding is not completed by December 31, 2026 absent a No-Fault Extension, the Contactor may be assessed damages in the amount of $175 per day. If the seeding is not subsequently completed by the respective dates absent a No-Fault Extension, the Contractor may be assessed damages in the amount of $125 per day.

3. Taxes:

Since this is state contract, there is no sales tax for materials purchased. We will be providing a tax exemption certificate to the awarded contractor as indicated in the last page of the appendix of construction contract documents. This should be considered when determining the unit prices submitted in the bid.

4. Measurement and Payment:

The specifications describing the work to be accomplished under each particular work item, also describe the method to be used in measuring and calculating the payment quantities for each work item set forth in the proposal. Payments will be made on the basis of monthly estimates in amounts equal to ninety-seven percent (97%) of the value of work completed. Mobilization will be paid at a percentage of the lump sum bid amount for this item equal to the overall percent complete of the project (less retainage). In preparing monthly estimates, advancement will be made therein for ninety-seven percent (97%) of the cost of materials stored on site.

5. Method of Bidding:

This is a unit price contract and bidders shall submit unit price bids as required for the work items covered by the specifications. Prices shall cover complete work and include all costs incidental thereto unless otherwise indicated. The base bid includes all items 1 through 17 (IMPACS does not include crop damage). A separate Document CC was provided with the bid package that is to be used for submitting the bid.

Any questions that should be considered as part of an addendum must be submitted to us by 3:00 PM, May 1, 2026. The Division will make every attempt to issue any necessary addenda no later than the day after the last date for questions. If an addendum is sent, please make sure to note on Page CC-2 that you have received and acknowledged the addendum.

If work is added to the contract by the Division after the contract execution which is not covered by a bid price set forth in the Proposal and Schedule of Prices (Document CC), a Change Order or Contract Amendment will be issued as required. If the additional work requires an extension of the contract completion date(s), a Contract Amendment will be issued.

6. Submission of Bids and Bid Security:

Sealed bids will be received by the Iowa Department of Agriculture & Land Stewardship, Division of Soil Conservation and Water Quality (Division), via the Iowa Management of Procurement and Contracts System (IMPACS), until 3:00 PM local time, Wednesday, May 20, 2026. The bid opening, open to the public, will be held through IMPACS at 3:00 PM local time, on Wednesday, May 20, 2026, when bids will be read aloud.

Interested parties may call in to hear the bid opening using the Microsoft Teams call-in number: +1 469-998-7627, 771541789#.

Bids must be submitted on the appropriate bid forms provided and shall include a bid bond in the amount of ten percent (10%). Bidders must also be registered with the Iowa Department of Inspections, Appeals & Licensing.

7. Evaluation of bids and award of Construction Contract:

This Hamilton County Nutrient Reduction Wetland Project shall be awarded to the lowest responsible responsive bidder as determined by the Division. In evaluating the bids, the Division may consider such factors as alternates, bid price, experience, contracts in default, responsibility of the Bidder, and similar factors in determining which bid it deems to be in the best interest of the Division for the project. In comparing bid prices, the total bids of the various Bidders shall be determined by applying the unit prices bid for each work item against the estimated work item quantities set forth in the Proposal and Schedule of Prices (Document CC).

Bid tabulations for this Hamilton County Nutrient Reduction Wetland Project will be prepared the week following the Bid Opening and distributed to all Bidders. Other plan holders or interested parties must request bid tabulations.

8. Bidder's Qualifications:

All Bidders shall meet the following qualifications:

1. Contractors are required to be registered with the Iowa Division of Labor.

2. Bidders shall, upon request of the Division, submit a statement of Bidder’s qualifications including experience, any contracts that are in default, available equipment, personnel, and financial ability to perform the work as outlined in Section 2 of Document BB.

9. Execution of Contract:

1. The party to whom this Hamilton County Nutrient Reduction Wetland Project is awarded shall be required to:

✓ execute the Contract;

✓ obtain the appropriate insurance coverage and Performance/Payment Bond;

✓ provide their Iowa Division of Labor Public Registration Number;

✓ and submit the Construction Progress Schedule (Document JJ) within fourteen (14) calendar days from the date of receipt of the Notice-of-Award. In case of failure of the Bidder to execute the Contract, the Division may, at its option, consider the Bidder in default, in which case the bid security accompanying the bid shall become the property of the Division.

2. The Division, within fourteen (14) days of receipt of an acceptable and properly executed

Performance/Payment Bond, certification of acceptable insurance coverage, and properly executed Contract; shall sign the Contract and return to such party an executed copy of the Contract. Should the Division not execute the Contract within such period, the Contractor may, by submitting written notice, withdraw the signed Contract. Such notice of withdrawal shall be effective upon receipt of the notice.

3. The Notice-to-Proceed shall be issued within five (5) days of the execution of the Contract by the Division, provided that the Construction Progress Schedule has been accepted by the Division. Should there be additional time required to make adjustments to the Construction Progress Schedule, the time to issue the Notice-to-Proceed may be extended to allow for this. If the Notice-to-Proceed has not been issued within a thirty (30) day period, or within a greater period mutually agreed upon, the Contractor may terminate the Contract without further liability on the part of either party.

10. Questions and Addenda:

Questions concerning interpretation or intent of the Plans and Construction Specifications should be directed to Brandon Short with Bolton and Menk, brandon.short@bolton-menk.com and must copy Tracy Blocker: tracy.Blocker@iowaagriculture.gov with the Division. All other questions concerning the Contract Documents should be addressed to Tracy Blocker, Division: 515 344-6279 or tracy.Blocker@iowaagriculture.gov.

Any oral interpretations given shall be valid only if confirmed by written addendum. All interpretation requests should be addressed in writing and received no later than 3:00 PM May, 1 2026.

The Division reserves the right to revise or amend the Contract Documents prior to the date set forth for receipt of bids. Such revisions and amendments, if any, shall be announced by an addendum or addenda to the Contract Documents. Copies of such addenda, as may be issued, shall be furnished to all plan holders. Bidders are required to acknowledge receipt of any addenda by listing such addenda in the Proposal and Schedule of Prices (Document CC).

mailto:brandon.short@bolton-menk.com

C) Engineer’s Discussion:

1. Plans Discussion:

a) A.02 - Project includes an excavated pool, tile re-lays, a partial capture, with a future borrow pond done by Hamilton County.

b) A.03 - Tile removals shall include breaking tile every 50 feet. Clay may be crushed in place, plastic should be removed where broken.

c) B.03 - Everything shown on the page is subsidiary to the inlet structure bid item.

d) B.04 - Everything shown on the page is subsidiary to the outlet structure bid item.

e) C.01 - It was pointed out that the quantities for the structure and buffer seeding were switched and incorrect. See updated K.01 for correct quantities.

f) D.01 - The separation berm shall be built to an elevation of 1173.50’.

g) D.02 - The connection channel shall be lined with Flexamat, contractor may propose a different brand of tied concrete block mat. It was pointed out that the elevations on the legend were wrong. The normal pool shall be at 1170.50’, the deep water area at <1167.50’, and the excavation at 1169.50’. The diversion berm shall be built to the NWL.

h) K.01 - The area inside the easement was not prairie like originally assumed. After updating seeding areas, the quantity of structure seeding is listed at 0.4 ac. and buffer seeding at 21.1

ac. Revised Sheet K.01 is attached.

i) M.01 - Both tile re-lays shall daylight one foot above normal pool. A cover berm shall provide a minimum of 3 feet of cover over the tile, and feature 10:1 side slopes outside of the easement. The inlet channel shall have a 20 ft bottom width and 4:1 sides.

j) M.02 - The partial capture inlet shall be 15" non-perforated HDPE with a modified SW-513 inlet structure on the pool side. The private tile shall be re-laid to the future borrow pond.

The temporary surface flow channel shall have a 10 ft bottom with 3:1 sides.

k) M.03 - The outlet pipe shall be laid between an SW-513 outlet structure and the existing tile main.

2. Addendum #1 has been issued to include the following:

i. Seeding areas have been modified as follows: Bid Item #3 “Structural Seeding” quantity has been revised from 2.5 AC to 0.4 AC; and Bid Item #4 “Buffer Seeding” quantity has increased from 2.5 AC to 21.1 AC. Attached are the revised Plans C.01 and K.01.

ii. Construction Specifications IA-011 “Removal of Water” has been added. Work and costs for dewatering the site during construction, is subsidiary (incidental), and no additional payment will be made.

iii. Bidders must acknowledge Addendum #1 or they would be disqualified.

Bid No.: 26-03

Monday, April 20, 2026 9:00 AM Williams Public Library 216 Man St Williams 515-344-6279

Name Company/Affiliation City State Email Phone

1 Tracy Bruun Division Des Moines IA 50309 tracy.bruun@iowaagriculture.gov 515-344-6279

2 Sara Smith Division Des Moines IA 50309 sara.smith@iowaagriculture.gov 515.422.7335

3 Ashley Wos Division Des Moines IA 50309 Ashley.wos@iowagriculture.gov 515.779.2860

4 Brandon Short Engineer of Record Ames IA brandon.short@bolton-menk.com 515.509.9296

5 Don Davidson IDDA - WFS Grundy Cente 50638 davidson@gcmuni.net 319.239.6714

6 Barry Eggers Bears Bulldozing Traer barry.eggers@icloud.com 641.485.5872

7 Brian Bildstein Dan Oberbreckling Concrete & Excavating Coggon bbildstein7@gmail.com 319-721-2230

8 Evan Hurd Heritage Land Solutions (Iron Heritage Properites LLC

Story City evan.hurd@hls-co.com 515.520.0711

9 Will Halstead Heritage Land Solutions (Iron Heritage Properites LLC

Story City will.halstead@hls-co.com 515.954.0187

10 Jake Peterson Peterson Construction jake.peterson@petersonconst.com 515.832.1216

11 Ryan Weidemann Hamilton County Eng Webster City rweidemann@hamiltoncounty.org 515.832.9520

Project ID: Ham892326B Nutrient Reduction Wetland

If I can't read your handwritting, I may not be able to send you the addendum or other pertinent information.

Pre-Bid Meeting Sign-in Sheet as of 05/14/2026 Plan Holders List for Bid 26-01; 26-02; 26-03 Project ID

Name Email Company Street Address City State Zip code Phone

E 26-01 Andrew Schipper aschippers@ducks.org Ducks Unlimited 209 Eugene St Radcliffe IA 832‐704‐3286 x Aaron Crane arcrane1250@gmail.com Aaron Crane Construction LLC 1833 120th St Manchester IA 52057 563-920-1250 x Jean Cornelius bedrockconcrete@gmail.com Bedrock Gravel & Concrete Produts 712-676-3752 x Gene Blazek blazekcorp@msn.com Blazek Corporation 2005 Union Avenue Lawler IA 52154 563‐238‐7150 x Lacey quotes@coleexcavating.com Cole Excavating, LLC 641.823.4700 x Grant Arndorfer grant@dornbierinc.com Dornbier Inc 2602 240th Ave Wesley ia 50483 515.341.4018 x Levi Thies thies2@outlook.com Empire Excavation 219 Lawndale St Odebolt IA 51458 712-660-8137 x Bryce Dooley groundsolutionsseeding@gmail.com Ground Solutions Seeding 3280 230th St Sac City IA 50583 712.210.6432 x Jodi Johnson hjohnsonservices@gmail.com H. Johnson Services, LLC 1943 180th ST Creston IA 50801 515.681.2224 x Michael Michaelis mikem@larsoncontracting.com Larson Contracting Central LLC 508 W Main St PO Box 7 Lake Mills IA 50450 406.890.4211 x Adam Laubenthal ADAM.LAUBENTHAL@HOTMAIL.COM LAUBENTHAL EXCAVATION 515-368-1112 x Jesse Merryman jd51merryman@hotmail.com Merryman Bridge Co. 2019 Irvington Road, PO Box 714 Algona IA 50511 515-341-4740 x Bret Mathews bret.mathews@metalculverts.com Metal Culverts x Jake Schulte jacob.schulte@metalculverts.com Metal Culverts, inc. 573‐636‐7312 x Dan Preuschl dan@rgealgona.com Redings Gravel & Excavating 2001 East Oak Street Algona IA 50511 515-341-3199 x Dale Reutzel reutzeloffice@gmail.com Reutzel Excavating PO Box 42, 3008 120th Ave Burt IA 50522 515-924-3852

E 26-02 Dan Jensen djensen@shive-hattery.com Shive-Hattery West Des Monies IA x Jean Cornelius bedrockconcrete@gmail.com Bedrock Gravel & Concrete Produts 712-676-3752 x Lisa Lauver lisa@cccpender.biz Christiansen Construction Company 402.385.3027 x Lacey quotes@coleexcavating.com Cole Excavating, LLC 641.823.4700 x Levi Thies thies2@outlook.com Empire Excavation 219 Lawndale St Odebolt IA 51458 712-660-8137 x Gemberling Excavating inc x Bryce Dooley groundsolutionsseeding@gmail.com Ground Solutions Seeding 3280 230th St Sac City IA 50583 712.210.6432 x Jodi Johnson hjohnsonservices@gmail.com H. Johnson Services, LLC 1943 180th ST Creston IA 50801 515.681.2224 x John Healy johnhealy@netins.net Healy Excavating 3483 Perkins Avenue Lakeview IA 51450 712-830-9179 x Adam Laubenthal ADAM.LAUBENTHAL@HOTMAIL.COM LAUBENTHAL EXCAVATION 515-368-1112 x Bruce Vonnahme vonateam@netins.net Leroy and Sons, Inc. 405 Dunlap Street Arcadia IA 51430 712‐790‐9956 x Derek Ludovissy ludovissyenterprises@gmail.com Ludovissy Enterpirses 702 S. 2nd St PO Box 714 Guttenberg IA 52052 563-880-4866 x Bret Mathews bret.mathews@metalculverts.com Metal Culverts x Jake Schulte jacob.schulte@metalculverts.com Metal Culverts, inc. 573‐636‐7312 x Tory Schmidt tschmidt@tjelectricandcontrols.come TJ Electric & Controls 200 4th Ave NE West Bend IA 50597 515.341.4071

E 26-03 Brandon Short brandon.short@bolton-menk.com Bolton & Menk Inc Engineering 515.509.9296

Eng Nathan Dose nathan.dose@bolton-menk.com Bolton & Menk Ames IA 515.507-1206 x Barry Eggers barry.eggers@icloud.com Bears Bulldozing 1887 J Ave Traer IA 50675 641.485.5872 x Jean Cornelius bedrockconcrete@gmail.com Bedrock Gravel & Concrete Produts 712-676-3752 x Lacey quotes@coleexcavating.com Cole Excavating, LLC 641.823.4700 x Brian Bildstein bbildstein7@gmail.com Dan Oberbreckling Concrete & Excavating Coggon IA 319-721-2230 x Chad McDonald cmcdonald@gehrkeinc.com Gehrke Inc 1405 21st Ave Eldora IA 50627 641.858.6953 x Bryce Dooley groundsolutionsseeding@gmail.com Ground Solutions Seeding 3280 230th St Sac City IA 50583 712.210.6432 x Jodi Johnson hjohnsonservices@gmail.com H. Johnson Services, LLC 1943 180th ST Creston IA 50801 515.681.2224 x Evan Hurd evan.hurd@hls-co.com Heritage Land Solutions (Iron Heritage Properites LLC 302 Broad St Story City IA 50248 515.520.0711 x Will Halstead will.halstead@hls-co.com Heritage Land Solutions (Iron Heritage Properites LLC 302 Broad St Story City IA 50248 515.954.0187 x Laramie Ogden laramie@jpettiecord.com J. Pettiecord, Inc. 1200 Prairie Dr SW Bondurant IA 50035 515.577.8121 x Jace Moore jace.moore@joneswheels.com Jones Contractors and Associates 13635 route 52 Dyersville IA 52040 563.880.7885 x Brett Schipper bedrockconcrete@gmail.com McDowell & Sons Contractors, Inc. 641-640-2216 x Douglas Schmidgall douglas.schmidgall@oldcastle.com Oldcastle Infrastructure 1601 E 39th St N Sious Falls SD 57104 320-391-6336 x James Seehusen jamess@pcius.com PCI PO Box A Reinbeck IA 50669 319-788-4764 x Jake Peterson jake.peterson@petersonconst.com Peterson Construction 515.832.1216 x Lance Stolee lancestolee@handsonexc.com Hands On Excavating, LLC 3305 Ziegler Ave Radcliffe IA 50230 515-338-2439 x Jeremy Rognes Jeremy@rbexc.com Rognes Bos. Excavating, Inc. PO Box86 Lake Mills IA 50450 641.590.3161 x Adam Laubenthal ADAM.LAUBENTHAL@HOTMAIL.COM LAUBENTHAL EXCAVATION 515-368-1112 x Levi Thies thies2@outlook.com Empire Excavation 219 Lawndale St Odebolt IA 51458 712-660-8137 x Anthony Herman Herman Drainage 1982 300th ST Madrid IA 50156 515.438.2508 x Bret Mathews bret.mathews@metalculverts.com Metal Culverts x Jake Schulte jacob.schulte@metalculverts.com Metal Culverts, inc. 573‐636‐7312 x Willis Ubben Ubben Tiling Inc 3255 Stagecoach Rd RR Stratford IA 50249 515.835.0418 x Steve Weidemann weidemann@myyahoo.com Weidemann Inc 105 Tracy St Dows IA 50071 515.852.3802

IDALS Sara Smith sara.smith@iowaagriculture.gov IA Dept of Ag & Land Stewardhsip 1305 E Walnut Des Moines IA 50319 515-422-7335

IDALS Tracy Blocker tracy.bruun@iowaagriculture.gov IA Dept of Ag & Land Stewardhsip 1305 E Walnut Des Moines IA 50319 515-344-6279

Key: Y = on plan holders list, submitted bid; X = on plan holders list, did not submit bid; NP = not on plan holders list, submitted bid; IDALS staff, PR=Plan Rooom; E=Engineer of Record Division of Soil Conservation & Water Quality - Water Resources Bureau

Kos972821A; Cal883229BN & BS; Ham892326B