Exhibit_A2.pdf

WATER MANAGEMENT PLAN

Minnesota Correctional

Facility Faribault

APRIL 2025

Prepared By:

MCF Faribault Water Management Study │ 2026 1

Water Management Plan

MINNESOTA CORRECTIONAL FACILITY

FARIBAULT

Prepared By:

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CONTENTS

List of Tables

List of Appendicies

Project Contacts

Executive Summary

Introduction

Existing Facilities

Preliminary Water System Evaluation

Water Quality Assessment

Recommendations and Cost Estimates

Flushing Plan

Fixtures of Special Considerations

Appendices

LIST OF TABLES

Table 1: Project Scope and Activities

Table 2: Facility Well Information

LIST OF APPENDICES

Appendix A: Images of Existing Conditions

Appendix B: Detailed Breakdown of Opinions of Probable Construction Costs

Appendix C: Water System Map

Appendix D: Copy of MN Correctional Facility – Faribault 2022 Drinking Water Report

Appendix E: Water Quality Data, 2019-2022 – Minnesota Department of Health

Appendix F: Copy of MN Correctional Facility – Faribault Source Water Assessment

Appendix G: List of Noted Fixtures

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PROJECT CONTACTS

Owner

Name: Minnesota Department of Administration Project Manager: Wang Vue 309 Administration Building 50 Sherburne Avenue St. Paul, MN 55155 Phone: 651-201-2395 Email: Wang.Vue@state.mn.us

Facility Name: Minnesota Correctional Facility – Faribault Facility Director: Jesse Artmann 1101 Linden Lane Faribault, MN 55021 Phone: 507-291-3085 Email: Jesse.Artmann@state.mn.us

Consulting Engineer Name: Kimley-Horn and Associates, Inc.

Project Manager: Uma Vempati, P.E., PMP 767 N. Eustis Street, Suite 100 St. Paul, MN 55114 Phone: 612-474-2746 Email: uma.vempati@kimley-horn.com

Minnesota Department of Health – Drinking Water Protection Phone: 651-201-4700 Email: Health.Drinkingwater@state.mn.us

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EXECUTIVE SUMMARY

The Minnesota Correction Facility – Faribault (MCF-Faribault) serves as a vital component of the Department of Corrections and has been in operation since 1989. As a Non-Transient Non-Community Water System (NTNCWS), the facility provides drinking water to a stable resident population, which necessitates a robust site-specific water management strategy. The purpose of this study is to evaluate existing water infrastructure conditions, identify water quality risks, and develop a Water Management Plan that supports regulatory compliance, extends infrastructure life, and ensures safe, reliable service to the facility population.

MCF-Faribault is supplied by two onsite wells (Well numbers 1 and 2). The sources of water for the wells are considered “Vulnerable” by the Minnesota Department of Health (MDH). The onsite wells supply an elevated storage tank, which maintains the distribution system pressure. Water treatment at MCF- Faribault consists of chlorination, phosphate, and fluoride treatment, as well as water softening. The treatment equipment appears in generally good condition. Piping and fixtures in various locations exhibits corrosion. A portion of the utility access tunnel on the west side of the facility has degraded, contributing to surface settling.

A comprehensive evaluation of the system was performed, including review of historical documents and water quality data, site visits, staff interviews, GIS mapping, and infrastructure assessments. Based on this evaluation, Kimley-Horn developed a set of short- and long-term recommendations organized under two categories: operational improvements and capital improvements. According to water quality testing on the facility drinking water, the water supply meets the required standards for providing safe and clean drinking water to its residents.

Short-Term Operational Recommendations:

· Replacement of the softener media.

· Disconnection of low/no use fixtures

· Evaluate the system flushing program and compare it with AWWA standards, such as AWWA

C651-14.

Long-Term Operational Recommendations:

· Prioritize pipe maintenance and corrosion prevention.

Short-Term Capital Improvement Recommendations:

· Perform Condition Assessment and Study of Underground Tunnels

· Improve Water Treatment Chemical Storage Safety

Long-Term Capital Improvement Recommendations:

· No recommendation at this time

The total estimated cost for implementing these recommendations is approximately $420,000, with a range from $340,000 (low estimate) to $760,000 (high estimate) depending on market conditions and future design development.

This Water Management Plan is intended to serve as a roadmap for the Minnesota Department of Corrections and the Department of Administration to protect public health, manage water system risks, and maintain regulatory compliance at MCF-Faribault. By addressing both immediate deficiencies and long-term infrastructure needs, the plan positions the facility for improved performance and sustained reliability.

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INTRODUCTION

PROJECT BACKGROUND AND PURPOSE

The "Study for Water Management Plans for Ten Department of Corrections (DOC) Facilities" is a pivotal initiative undertaken by the State of Minnesota to ensure that the water systems across its correctional facilities meet stringent regulatory standards and provide sustainable, high-quality water services. This project is designed to address and mitigate existing water system challenges while laying down a robust framework for future improvements and maintenance.

The purpose of this comprehensive study is two-fold: first, to perform a detailed evaluation of the current water infrastructure, identifying any deficiencies in water quality, treatment capabilities, and system resilience; and second, to develop tailored Water Management Plans for each facility. These plans aim to outline specific operational and maintenance strategies that will not only rectify identified issues but also enhance the overall efficiency and reliability of water services at each Facility. By prioritizing the health and safety of facility populations and ensuring compliance with environmental and public health standards, this project demonstrates the State’s commitment to maintaining exemplary standards in its correctional system’s infrastructure.

Building upon the above-mentioned overarching goal of developing Water Management Plans for the Minnesota Department of Corrections Facilities, this report focuses on the specific needs of the Minnesota Correctional Facility – Faribault (MCF-Faribault). Originally constructed as a state hospital, the facility was converted to a correctional facility beginning in 1989. MCF-Faribault is located east of the Straight River, and roughly one half mile south of 1st street NE. The location of MCF-Faribault is presented in Figure 1. Presently, it houses up to 2000 male inmates, with 1946 incarcerated as of March 19th, 2025. The project included two visits to the Faribault facility. The first visit on November 4th, 2024, and the second visit on March 3rd, 2025.

MCF-Faribault is classified as a Non-Transient Non-Community Water System (NTNCWS), which implies it provides water to a consistent population without being a municipal system. This classification underlines the importance of a tailored water management plan that addresses the specific water usage and safety needs of a stable resident population. The upcoming sections of this report will delve into the facility's existing water infrastructure, evaluating its adequacy in meeting both current demands and regulatory standards, and proposing necessary upgrades and strategic improvements. This focus ensures that the water management strategies developed are both effective and specifically aligned with the needs of the Faribault facility.

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Figure 1: Minnesota Correctional Facility – Faribault Location

PROJECT SCOPE AND METHODOLOGY

The scope of the project for the Minnesota Department of Corrections (DOC) facilities included a series of specific, targeted activities aimed at ensuring regulatory compliance, addressing aging water infrastructure, and developing operational and maintenance best practices of the water systems at each of the correctional facilities. These activities are detailed in Table 1.

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Table 1: Project Scope and Activities

Project Scope/Activity General Description Specific Application at MCF Faribault

Document Review and Analysis

Conducted a thorough review of all available water system documentation, including record drawings and water quality reports.

Reviewed Consumer Confidence Report, Source Water

Assessment, and Minnesota Department of Health Public

Health data.

Facility Visits and Site Evaluations

Assessed existing conditions of water infrastructure at each facility, verified records with maintenance staff, and performed detailed inspections.

Conducted detailed inspections of Faribault's aging pipes and valves (above-ground), noting areas with significant wear and potential for failure.

GIS Mapping Developed a Geographic

Information System (GIS) map for each facility to visually represent the water system infrastructure.

Created a detailed GIS map of Faribault’s water system, incorporating recent upgrades and identifying critical points for monitoring.

Water Quality Assessment Reviewed the water quality at each facility to identify potential concerns and areas for improvement.

Analyzed water quality data provided by the Minnesota

Department of Health.

Development of Water Management Plans

Developed detailed Water Management Plans based on site visits, document review, and water quality assessments.

Tailored the Water Management Plan to address unique operational challenges at Faribault, such as the large facility size and connection to other facilities.

Reporting and Recommendations

Compiled findings and recommendations into a comprehensive report for each facility detailing inventory, evaluations, and recommendations.

Provided a customized report for Faribault with prioritized recommendations for urgent repairs and efficiency improvements.

REPORT ORGANIZATION

With the information collected during the tasks outlined above, the MCF-Faribault report was developed.

This report includes the following:

· Inventory and brief description of key water infrastructure within the facility, as it relates to supply, treatment, pumping, and storage.

· High level evaluation of water distribution sizing by analyzing the existing and projected demand for the facility.

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· Within the evaluation, identification of future maintenance and replacement options, as well as lead removal opportunities were provided.

· Water quality assessment using available water quality data.

· Short- and long-term maintenance recommendations o These recommendations include:

§ Operational adjustments to improve water quality.

§ Operational adjustments to improve system longevity.

§ Systemic flushing recommendations.

§ Identification of unused fixtures and recommendations to remove.

§ Short- and long-term capital improvement recommendations.

EXISTING FACILITIES

WATER SUPPLY

During general operations, the domestic water supplied to the facility is provided by the two wells on site.

Well #1 [Unique well No. 217743] is located on the West edge of the property, south of the water tower.

Well #2 [Unique well No. 236442] is located on the west edge of the property, north of the water tower.

Both wells supply water to the elevated storage tank. Pictures representing these wells are presented as Images 1-3 in Appendix A. Facility well information is provided in Table 2.

Table 2: Facility Well Information

Well Name Well #1 Well #2

Unique Well No. 236442 217743

Well Depth [ft] 517 505

Casing Depth [ft] 193 180

Static Depth [ft] 94 83

Pump Capacity [gpm] 100 100

Year Originally Constructed 1954 1946

Vulnerability Not Vulnerable Vulnerable

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The source of water for Well #2 is considered “Vulnerable” by the Minnesota Department of Health (MDH) in the Source Water Assessment. This designation is made by scientists to denote water sources which could easily be impacted by human activity, harming the water quality.

A potential contaminant inventory was conducted most recently in 1998 by the MDH. This inventory cataloged potential sources of contamination within 200 feet of the system’s water sources. The following conclusion was made by MDH:

“No potential sources of contamination within 200 feet of the system’s water sources have been identified.”

A copy of the Source Water Assessment is included in Appendix F.

TREATMENT

The facility treats all water sent to the distribution system. The facility water system treats the water through the addition of gaseous chlorine, a phosphate-based corrosion inhibitor, and fluorosilicic acid. All three of these compounds are added within the wellhouse. Pictures representing the water treatment equipment can be found in Appendix A, Images 4-6.

Figure 2: Simplified Water System Schematic

The chlorination system utilizes gaseous chlorine to treat the well water. Pictures representing the chlorine storage are presented as Image 4 in Appendix A. The chlorine cylinders are stored in a locked chemical storage shed adjacent to the wellhouse. A picture representing the chemical storage is presented as Image 5 in Appendix A. The phosphate chemical used is “Azone 15”, supplied by Hawkins Chemical. The chemical dose amounts and rates are controlled by a force flow chemical monitoring system. A peristaltic pump is used to dose the phosphate and fluoride chemicals. A picture representing the chemical treatment system are presented as Image 7 in Appendix A.

The chlorine treatment is dosed with a feed of 0-2 ppm. The fluorosilicic acid feed is held at approximately 1ppm.

An eyewash station is located within each of the wellhouses. The eyewash stations are wall mounted drench hose style units. A picture representing the eyewash station is presented as Image 8 in Appendix A. The proximity of the eyewash station to the chemical storage tanks provides adequate safety practices.

The Phosphate chemical storage and the fluoride chemical storage are both single walled, lacking a dual containment redundancy. Additionally, neither of the storage tanks are vented to the outside of the wellhouse. These conditions are the same across both wellhouse 1 and wellhouse 2. A picture representing the chemical storage conditions are presented as Image 6 in Appendix A.

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After treatment within the wellhouse, the facility’s water that will be heated is first softened. The softening salt is stored in two salt storage silos. The two storage silos are refilled pneumatically by the salt supplier.

Pictures representing the salt storage silos are presented as Image 9 in Appendix A. The water softening resin system is a three tank Wigen set up. Each of the three resin tanks are approximately 8 feet tall, and

2.5 feet in diameter. 60,000 gallons of water is softened through each tank before resin regeneration is activated. The softening tanks were constructed between 1998 and 2004. The age of the softening resin is unknown. Pictures representing the resin storage tanks are presented as Images 10-11 in Appendix A.

After softening, the water is then heated. There are five water heaters within the powerhouse. These five water heaters provide hot water to the facility. The hot water heaters are located on the lower level of the powerhouse. They are approximately 10 feet in length, and 5 feet in diameter. Images representing the powerhouse water heaters are presented as Images 12-13 in Appendix A.

There are several smaller, domestic style water heaters throughout the facility. These water heaters provide greater coverage and work to meet hot water demand within the facility. Locations of these hot water heaters include:

· Walnut Building

· Grounds Building

· Rogers Building

· Food Services Building

· Industry Building (four units)

Images representing the domestic hot water units are presented as Images 14-15 in Appendix A.

PUMPING

The facility has two well pumps from which it draws water. Well #1’s pump was replaced in 2024. Both Well’s pumps were in visually good condition, and the staff stated they both operate well and there are no concerns. Pictures representing the wells are presented as Image1 and Image 3 in Appendix A.

The well pumps at the facility are operated by VFDs. The VFDs allow the pumping rate to be adjusted to maintain pressure throughout the distribution system. The well pumps are each controlled by a dedicated pump controller. A picture representing the pump controller is presented as Image 16 in Appendix A.

These controllers are located next to the well pumps in the wellhouses. The facility staff did not have any concerns about the VFD system’s ability to manage the well pumps, nor the well pumps’ abilities to achieve necessary system pressure to feed the elevated storage tank.

STORAGE

The facility utilizes an elevated storage tank for water storage and distribution pressure. The elevated storage tank is located on the western edge of the facility, between the wellhouses. A picture representing the elevated storage tank is presented as image 17 in Appendix A.

The elevated storage tank has a capacity of 300,000 gallons. The tank was constructed in 1960. The aerator and central plumbing system of the elevated storage tank are being rehabilitated. The work is expected to be completed by the end of 2025.

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MISCELLANEOUS COMPONENTS

The water distribution infrastructure throughout the facility is in a series of tunnels. In some areas, the condition of these tunnels has degraded over time. One area of note, on the west side of the facility north of the powerhouse, the tunnel has sunken and begun to collapse. The condition of the tunnels may pose a risk to the water distribution system. Pictures representing the tunnel system are presented as Images 18 in Appendix A.

The facility has a city water connection. The water connection is located northeast of the Birch Building, outside of the secured perimeter. According to conversations with staff during a March 2025 site visit, the connection had not been exercised in over five years. The city connection is expected to be used for water supply during the planned rehabilitation and construction of the elevated storage tank.

Per conversations with facility staff, the facility is looking to add a valve to the water main near the laundry. This valve will allow the facility to shut off water distribution to the warehouse, while maintaining water supply to the laundry building. This will be necessary to repair the tunnel concerns noted in the section “Existing Distribution Evaluation.” A picture representing the tunnel section where the valve will be located is presented as Image 19 in Appendix A.

However. some fixtures within the facility receive little to no use on a regular basis. These fixtures should be decommissioned and removed. Doing so will reduce the risk of stagnant water and biological growth that may be harmful if the water is used or consumed from these fixtures. These fixtures include one bathroom located in the old maintenance shop, one bathroom located in the Walnut building, showers in the Rogers building, as well as some of the fixtures located in the warehouse and ICWC buildings.

Pictures representing some of these fixtures are presented as Image 20 in Appendix A.

PRELIMINARY WATER SYSTEM EVALUATION

In this section of the report, the current water distribution at the correctional facility is evaluated.

EXISTING DISTRIBUTION EVALUATION

The existing distribution configuration of the facility appears to be generally well suited to meet water demands. Generally, the fixtures and faucets in the main buildings are used frequently enough to prevent concerns regarding stagnant water, which could lead to potential issues such as bacterial growth.

The existing distribution network faces increased risk due to the deteriorating conditions of the underground tunnels. The tunnels house the water distribution piping throughout much of the facility.

Unknown existing conditions, tunnel sagging, and partial collapse increase the likelihood of disruption to the distribution system. Pictures representing the tunnel conditions are presented as Images 18-19 in Appendix A.

To ensure a proactive approach to maintaining water quality, the facility manages a systemic flushing schedule through the Archibus facility management software. This schedule includes regular flushing of outdoor connections in the spring and fall. The software automatically sends reminders to the facility staff, ensuring that the flushing process is conducted on time and effectively.

This proactive approach to flushing and maintenance helps to prevent stagnant water and maintain optimal water quality throughout the facility. By utilizing the Archibus software, the facility staff can

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The facility does not currently operate a building flushing program.

LEAD REMOVAL OPPORTUNITIES

The facility staff did not have knowledge of any existing lead piping. The piping in the facility was composed of either copper, ductile iron, or polyvinyl chloride (PVC). Additionally, the 2022 Drinking Water Report found lead levels to be below the Maximum Contaminant Level Goal (MCLG). See section “Water Quality” for more information.

Upon review of the Minnesota Lead Inventory Tracking Tool, a service of the Minnesota Department of Health, MCF-Faribault does not have any lead service lines within their system

GENERAL OPERATIONAL CONSIDERATIONS

Before any changes to drinking water system occur, the Minnesota Department of Health (MDH) may need to be contacted. In Minnesota, “No system of public water supply shall be installed, materially altered, or extended until complete plans and specifications with any additional required information are submitted to and approved by MDH”. Review the MDH’s “Plan Review Submittal Guidance” webpage for up-to-date information to determine when contacting MDH is required.

WATER QUALITY ASSESSMENT

In this section of the report, the current water quality at the correctional facility is evaluated.

WATER QUALITY

The MN Correctional Facility - Faribault 2022 Drinking Water Report was thoroughly reviewed as part of our assessment of the water quality provided by the city. The 2022 drinking water report can be found attached as Appendix D. This comprehensive report details the concentrations of contaminants present in the drinking water and compares them against the established limits set by the Environmental Protection Agency (EPA). Additional water quality data provided by MDH access was also reviewed. This data can be found in Appendix E. The facility water was tested for the following contaminants:

• Lead

• Copper

• Barium

• Gross Alpha

• Combined Radium

• Total Trihalomethanes

• Total Haloacetic Acids

• Total Chlorine

• Fluoride

• Sodium

• Sulfate

• Arsenic

• Nitrate

• PCE

• Radium

• TCE

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Importantly, none of the contaminants tested were found to exceed the EPA limits or action levels in the drinking water. This indicates that the Facility's water supply meets the required standards for providing safe and clean drinking water to its population.

RECOMMENDED FURTHER TESTING

No further water testing is recommended at this time.

RECOMMENDATIONS AND COST ESTIMATES

In this section of the report, short-term (3 Years Timeline) and long-term (5-10 Years timeline) recommendations are made regarding facility operations and capital improvements. Associated cost estimates are in Appendix B.

OPERATIONS IMPROVEMENTS

SHORT-TERM RECOMMENDATIONS

· Replacement of the softener media.

o One short term maintenance recommendation is to replace the water softener media.

Typically, softener media has a service life of 10-15 years. The existing media’s age is unknown. As such, it should be replaced.

· Disconnection of low/no use fixtures o Multiple fixtures are outlined in the “Miscellaneous Components” section which receive little to no use during typical facility operations. These fixtures should be disconnected to reduce the risk of stagnant water in the distribution system. Additionally, the facility staff should consider disconnecting any other connections that they know receive little to no use during typical operations, even if they are not outlined in this report.

· Implement a systemic facility flushing plan.

o The facility should implement a systemic flushing plan. Such a plan will reduce the risk of stagnant water in the facility distribution network. The recommended facility flushing plan can be found in the “Flushing Plan” section of the report.

LONG TERM-RECOMMENDATIONS

· Prioritize pipe maintenance and corrosion prevention.

o Long-term maintenance efforts should prioritize pipe maintenance and corrosion prevention. Upon inspection, it was evident that some of the pipes and fixtures, particularly those located in humid areas, such as pipe chases and the underground tunnels, displayed noticeable signs of corrosion. Additionally, the pipe coatings and insulations have deteriorated in multiple locations. To ensure safe and effective operations, it is crucial to maintain appropriate humidity levels in the spaces and promptly repair any damaged coatings or insulation. By addressing these issues proactively, the lifespan of the pipes can be extended, and further corrosion-related damage can be prevented. This will ultimately contribute to the overall reliability and longevity of the system.

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CAPITAL IMPROVEMENT RECOMMENDATIONS

SHORT-TERM RECOMMENDATIONS

· Perform Condition Assessment and Study of Underground Tunnels o The underground tunnels are currently in disrepair. A condition assessment as part of a larger study on what to do regarding their conditions is recommended.

· Improve Water Treatment Chemical Storage Safety o Water treatment chemical storage practices should be improved. The liquid chemicals should be stored in dual walled containers. Additionally, they should be vented to the outside.

LONG-TERM RECOMMENDATIONS

· There are no long-term capital improvement recommendations

FLUSHING PLAN

GENERAL FLUSHING PROCESS

1. Identify when you will flush: Flushing should be performed when the weather is unlikely to fall below freezing. Additionally, individual wings/buildings should be flushed more frequently if they are not being used regularly.

1.1. Facility flushing can be performed alongside general hydrant flushing scheduled for the spring, summer, or fall.

2. In general, all flushing should be performed nearest to the source first. This will allow for younger water to fill the flushed portion of the distribution system. Then, the next segment of the plumbing/distribution system will be flushed with younger water. If sections of the distribution system are flushed before young water reaches them, you run the risk of not flushing the system adequately.

3. Increase chlorination dosage by 0.2-0.5 mg/L when flushing is occurring, incase back siphonage occurs.

FARIBAULT FLUSHING RECOMMENDATIONS

1. Flush watermain from Elevated Storage Tank to Power Plant

1.1. See section “Watermain Flushing”

2. Flush Power Plant

2.1. See section “Building Flushing”

3. Flush watermain from Power Plant through Deadlegs near admin

3.1. See section “Watermain Flushing”

4. Flush watermain near Admin Building

4.1. See section “Watermain Flushing”

5. Flush Admin Building

5.1. See section “Building Flushing”

6. Flush watermain from Admin Building to Warehouse.

6.1. See section “Watermain Flushing”

7. Flush the Warehouse

7.1. See section “Building Flushing”

8. Flush watermain from Warehouse to Laundry

8.1. See section "Watermain Flushing”

9. Flush the Laundry building

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9.1. See section “Building Flushing”

10. Flush watermain feeding the Minnesota State Academy for the Blind

10.1. Coordinate this Process with Academy Staff

10.2. See section “Watermain Flushing”

11. Flush watermain near Sierra Building

11.1. See section “Watermain Flushing”

12. Flush the Sierra building

12.1. See section “Building Flushing”

13. Flush watermain near K2

13.1. See section “Watermain Flushing”

14. Flush K2

14.1. See section "Building Flushing”

15. Flush watermain near Aspen building

15.1. See section “Watermain flushing”

16. Flush Aspen Building

16.1. See section “Building Flushing”

17. Flush watermain south of K3 & K4 buildings

17.1. See section “Watermain Flushing”

18. Flush K4 building

18.1. See section "Building Flushing”

19. Flush the Maintenance Building

19.1. See section "Building Flushing”

20. Flush the watermain from Maintenance to Industry Building

20.1. See section “Watermain Flushing”

21. Flush the Industry Building

21.1. See section “Building Flushing”

22. Flush the watermain west of Industry building

22.1. See section "Watermain Flushing”

23. Flush the watermain northeast of Power Plant

23.1. See section “Watermain Flushing”

24. Flush the watermain east and west of K1

24.1. See section “Watermain Flushing”

25. Flush K1

25.1. See section “Building Flushing”

26. Flush watermain north of Fern, east of Sierra

26.1. See section “Watermain Flushing”

27. Flush the Fern building

27.1. See section “Building Flushing”

28. Flush the watermain northwest of Rogers

28.1. See section “Watermain Flushing”

29. Flush the watermain northeast of Rogers Building

29.1. See section “Watermain Flushing”

30. Flush the Rogers building

30.1. See section “Building Flushing”

31. Flush watermain near Pine Building

31.1. See section “Watermain Flushing”

32. Flush the Pine Building

32.1. See section “Building Flushing”

33. Flush the watermain near Maple

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33.1. See section “Watermain Flushing”

34. Flush K3

34.1. See section “Building Flushing”

35. Flush Maple

35.1. See section "Building Flushing”

36. Flush the City Connection

36.1. Coordinate with City water contacts before opening city connection.

36.2. See section “Watermain Flushing”

37. Flush the watermain feeding the Grounds Building

37.1. See section "Watermain Flushing”

38. Flush the Grounds Building

38.1. See section "Building Flushing”

39. Flush the watermain near Linden

39.1. See section "Building Flushing”

40. Flush the watermain near Birch

40.1. See section "Watermain Flushing”

41. Flush Linden

41.1. See section “Building Flushing”

42. Flush Birch

42.1. See section “Building Flushing”

43. Flush watermain near Willow

43.1. See section “Watermain Flushing”

44. Flush the watermain near the Food Service building

44.1. See section "Watermain Flushing”

45. Flush the Intake Building

45.1. See section “Building Flushing”

46. Flush the Food Service building

46.1. See section “Building Flushing”

47. Flush any known distribution system dead ends

47.1. See section “Watermain Flushing”

48. Flush any known buildings that have yet to be flushed

48.1. See section “Building Flushing”

WATERMAIN FLUSHING

1. Refer to Water System Map (Appendix C) to understand relative location of watermains.

2. Identify the hydrant nearest to the watermain segment you plan to flush

3. Close nearby valves to direct flow to the hydrant

4. Open the hydrant slowly

5. Allow the water to flush for 3 minutes, or until the water runs clear, whichever is longer.

6. Slowly close the hydrant.

7. Reopen the valves closed in step 3.

BUILDING FLUSHING

1. Identify the first water connection after the service line enters the building

1.1. This may be a hose spigot, or a water fixture near the service connection, such as a janitors sink on a lower level.

1.2. Flush this fixture for 1-2 hours to ensure that the water service connection is filled with young water.

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2. Establish the “expected route” of the plumbing system through the building’s lowest floor. Flushing the building’s fixtures “in order” along the route will allow young water to flush through each fixture. If fixtures are flushed out of order, the fixture may not be flushed with young water.

2.1. Remove faucet aerators, shower heads and hoses, and point of use filters before flushing. This will prolong the life of the components, as well as facilitate more efficient flushing

2.2. Review the “Fixtures of Special Consideration” section of the flushing plan. If any of these fixtures are found within the building, the special instructions should be followed when flushing.

2.3. For all fixtures not covered under “Fixtures of special consideration”, Flush each fixture for 10 minutes, or until water runs clear, whichever takes longer.

3. Once the lowest level of the building has been flushed, progress to the next level of the building and repeat the process. Flush the floor’s fixtures “in order” for 10 minutes, or until water runs clear

3.1. Extra time should be allowed for the flushing of the first fixture on a floor. This fixture will likely take longer to run clear, as the water between floors must be flushed through this fixture.

4. Repeat the process for each floor of the building, until all floors have been flushed from bottom to top.

FIXTURES OF SPECIAL CONSIDERATIONS

HOT WATER SYSTEM

1. Valve off the water heater.

2. Fully drain the water heater tank, associated hot water storage tanks, and the hot water recirculation loop if applicable.

2.1. Hot water recirculation loop must be drained before the hot water fixtures can be flushed.

3. Once drained, refill all components drained in step 2 with new water.

4. While the hot water recirculation loop is drained, cold water fixtures can be flushed. Once recirculation loop has been fully drained and refilled, hot water fixture flushing can begin.

WATER SOFTENER

1. Valve off the water softener

2. Flush the fixture directly upstream of the water softener for 10 minutes, or until water runs clear, whichever is longer.

3. Open the valve to the water softener

4. Water softeners should be flushed using the nearest spigot downstream of the water softeners. Flush each softener tank fully.

4.1. As softeners are designed to run in parallel, a manual override may be required to adequately flush the softening system.

4.2. Review owner’s manual for softener system flushing and follow manufacturers recommendations.

WATER STORAGE TANKS

1. Valve off the water storage tank.

2. Flush the fixture directly upstream of the water storage tank for 10 minutes, or until water runs clear, which ever takes longer.

3. Fully drain the water storage tank.

3.1. If desired, perform general storage tank maintenance & cleaning at this time.

4. Open the valve and refill the water storage tank.

ICE MACHINES

1. Remove and dispose of all ice in the ice machine.

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2. Repeat this process outlined in step 1 a total of three times

REFRIGERATOR WATER DISPENSER

1. Run refrigerator water dispenser for 10 min, disposing of the water produced.

DRINKING FOUNTAINS & BOTTLE REFILL STATIONS

1. Flush the drinking fountains and bottle refill stations for 10 minutes, or until water runs clear.

1.1. If applicable, consider replacement of the fountain unit filter after flushing. Follow manufacturer’s recommendations regarding filter replacement and commissioning.

KITCHEN CONNECTIONS

1. Identify the location where water enters the kitchen

2. Identify the first fixture after the water enters the kitchen

2.1. If this fixture is a faucet, spigot, or other general plumbing fixture, proceed to step 3.

2.2. If this fixture is a steam kettle, dishwasher, or other specialized kitchen appliance, identify the fixture directly upstream of the water’s entrance to the kitchen. This general fixture will be utilized for step 3.

3. Flush the fixture identified in step 2 of this section for 1 hour, or until the water runs clear, whichever takes longer. This increase in flushing time is utilized to reduce risk that discolored water is flushed through the kitchen fixtures.

4. After step 3. Has been completed, the kitchen water system can be flushed.

4.1. Flush faucets, spigots, and other general fixtures for 10 minutes, or until water runs clear, whichever takes longer.

4.2. Flush steam kettles, dishwashers, and other kitchen fixtures according to manufacturer’s suggestions.

HVAC/BOILER CONSIDERATIONS

1. The HVAC/Boiler system should not be directly impacted by the flushing program, as the closed loop design means that the water in the HVAC system is separate from the potable water distribution system. However, the treatment infrastructure that produces makeup water for the HAVC system is connected to the potable water distribution system and care must be taken to protect the treatment infrastructure during flushing.

2. The makeup water treatment system should be valved off during the building flushing process, until the lines supplying the treatment system have been flushed.

3. As flushing proceeds sequentially through the building, the facility staff should identify the nearest fixture upstream of the makeup water treatment system

3.1. This fixture should be flushed for 5-10 minutes, or until water runs clear, whichever takes longer.

Doing so will reduce the risk of high-sediment water reaching the makeup water treatment system.

IN-LINE/MECHANICAL FILTERS AND OTHER POINT-OF-USE FILTRATION

SYSTEM

1. These treatment devices should be bypassed/disconnected when flushing is underway. This will prevent filter cartridges/membranes from needless fouling.

2. The fixture that the treatment device is connected to, or the nearest upstream fixture, should be identified.

3. With the treatment device bypassed/disconnected, water should be flushed through the identified fixture for 10 minutes, or until the water runs clear, whichever takes longer.

19 MCF Faribault Water Management Study │ 2026

APPENDICES

APPENDIX A: IMAGES OF EXISTING CONDITIONS

APPENDIX B: DETAILED BREAKDOWN OF OPINION OF PROBABLE COSTS

APPENDIX C: WATER SYSTEM MAP

APPENDIX D: COPY OF MN CORRECTIONAL FACILITY – FARIBAULT 2022

DRINKING WATER REPORT

APPENDIX E: WATER QUALITY DATA, 2019-2022 - MINNESOTA DEPARTMENT

OF HEALTH

APPENDIX F: COPY OF MN CORRECTIONAL FACILITY – FARIBAULT SOURCE

WATER ASSESSMENT

APPENDIX G: LIST OF NOTED FIXTURES

MCF Faribault Water Management Study │2026 Appendix A

APPENDIX A: IMAGES OF EXISTING CONDITIONS

Image 1: Wellhouse #1

Image 2: Wellhouse #2

MCF Faribault Water Management Study │ 2026 Appendix A

Image 3: Well pump, Typical

Appendix A MCF Faribault Water Management Study │ 2026

Image 4: Gaseous Chlorine Storage

Image 5: Fluorosilicic Acid Chemical Storage

Image 6: Corrosion Inhibitor Chemical Storage

Image 7: Chemical Feed Lines and Pumps

Image 8: Wellhouse Eyewash Station

Image 9: Salt Storage Silos

Image 10: Softening Resin Tanks

Image 11: Resin Storage Tank

Image 12: Facility Hot Water Boiler

Image 13: Facility Hot Water Boiler

Image 14: Domestic Hot Water Unit, Typical

Image 15: Domestic Hot Water Unit, Typical

Image 16: VFD and Chemical Pump Controls

Image 17: Elevated Storage Tank

Image 18: Above Ground Tunnel Condition

Image 19: Tunnel Piping, Typical, Located near Laundry

Image 20: Group Shower, To Be Removed

MCF Faribault Water Management Study │ 2026 Appendix B

APPENDIX B: DETAILED BREAKDOWN OF OPINION OF PROBABLE COSTS

PROJECT:

LOCATION: MCF-FARIBAULT

Quantity Total

1.0 SHORT TERM OPERATIONS IMPROVEMENTS

1.1 Replacement of Softener Media CF 250$ 120 30,000$

Subtotal 30,000$

2.0 LONG TERM OPERATIONS IMPROVEMENTS

2.1 General Corrosion Repairs EACH 7,500$ 10 75,000$

Subtotal 75,000$

3.0 SHORT TERM CAPITAL IMPROVEMENTS

3.1 Underground Tunnel Condition Assessment EACH 200,000$ 1 200,000$

3.2 Improve Water Treatment Chemical Storage EACH 15,000$ 2 30,000$

Subtotal 230,000$

4.0 LONG TERM CAPITAL IMPROVEMENTS

Subtotal -$

A Total Operational Costs 105,000 B Total Capital Costs 230,000 C Project Subtotal (Row A + B) 335,000 D Contingency (% of Row C) % 25% 83,750$ E Total Project Cost (Rounded) 420,000$

LOW ESTIMATE -20% 340,000$

HIGH ESTIMATE +80% 760,000$

This total does not reflect engineering or technical services.

The Engineer has no control over the cost of labor, materials, equipment, or over the Contractor's methods of determining prices or over competitive bidding or market conditions. Opinions of probable costs provided herein are based on the information known to Engineer at this time and represent only the Engineer's judgment as a design professional familiar with the construction industry. The Engineer cannot and does not guarantee that proposals, bids, or actual construction costs will not vary from its opinions of probable costs.

Item Num. Unit Rate ($/unit)

ENGINEER'S OPINION OF PROBABLE CONSTRUCTION COSTS

STUDY FOR WATER MANAGEMENT PLANS FOR TEN DEPARTMENT OF CORRECTIONS FACILITIES

Description Unit

MCF - FARIBAULT

MCF Faribault Water Management Study │ 2026 Appendix C

APPENDIX C: WATER SYSTEM MAP

NORTHNORTH

MCF Faribault Water Management Study │ 2026 Appendix D

APPENDIX D: COPY OF FARIBAULT 2022 DRINKING WATER REPORT

C O N S U M E R C O N F I D E N C E R E P O R T

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MN Correctional Facility - Faribault 2022 Drinking Water Report

Making Safe Drinking Water Your drinking water comes from a groundwater source: two wells ranging from 504 to 517 feet deep, that draw water from the Prairie Du Chien-Jordan aquifer.

MN Correctional Facility - Faribault works hard to provide you with safe and reliable drinking water that meets federal and state water quality requirements. The purpose of this report is to provide you with information on your drinking water and how to protect our precious water resources.

Contact Scott Galen Ewest, Power Plant Chief Engineer, at (507) 332-4522 or scott.ewest@state.mn.us if you have questions about MN Correctional Facility - Faribault’s drinking water. You can also ask for information about how you can take part in decisions that may affect water quality.

The U.S. Environmental Protection Agency sets safe drinking water standards. These standards limit the amounts of specific contaminants allowed in drinking water. This ensures that tap water is safe to drink for most people. The U.S. Food and Drug Administration regulates the amount of certain contaminants in bottled water. Bottled water must provide the same public health protection as public tap water.

Drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. The presence of contaminants does not necessarily indicate that water poses a health risk. More information about contaminants and potential health effects can be obtained by calling the Environmental Protection Agency’s Safe Drinking Water Hotline at 1-800-426-4791.

MN Correctional Facility - Faribault Monitoring Results This report contains our monitoring results from January 1 to December 31, 2022.

We work with the Minnesota Department of Health to test drinking water for more than 100 contaminants. It is not unusual to detect contaminants in small amounts. No water supply is ever completely free of contaminants. Drinking water standards protect Minnesotans from substances that may be harmful to their health.

Learn more by visiting the Minnesota Department of Health’s webpage Basics of Monitoring and testing of Drinking Water in Minnesota (https://www.health.state.mn.us/communities/environment/water/factsheet/sampling.html).

https://www.health.state.mn.us/communities/environment/water/factsheet/sampling.html

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How to Read the Water Quality Data Tables

The tables below show the contaminants we found last year or the most recent time we sampled for that contaminant. They also show the levels of those contaminants and the Environmental Protection Agency’s limits. Substances that we tested for but did not find are not included in the tables.

We sample for some contaminants less than once a year because their levels in water are not expected to change from year to year. If we found any of these contaminants the last time we sampled for them, we included them in the tables below with the detection date.

We may have done additional monitoring for contaminants that are not included in the Safe Drinking Water Act. To request a copy of these results, call the Minnesota Department of Health at 651-201-4700 between 8:00 a.m. and 4:30 p.m., Monday through Friday.

Some contaminants are monitored regularly throughout the year, and rolling (or moving) annual averages are used to manage compliance. Because of this averaging, there are times where the Range of Detected Test Results for the calendar year is lower than the Highest Average or Highest Single Test Result, because it occurred in the previous calendar year.

Definitions

▪ AL (Action Level): The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow.

▪ EPA: Environmental Protection Agency

▪ MCL (Maximum contaminant level): The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.

▪ MCLG (Maximum contaminant level goal): The level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of safety.

▪ MRDL (Maximum residual disinfectant level): The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.

▪ MRDLG (Maximum residual disinfectant level goal): The level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLGs do not reflect the benefits of the use of disinfectants to control microbial contaminants.

▪ N/A (Not applicable): Does not apply.

▪ pCi/l (picocuries per liter): A measure of radioactivity.

▪ ppb (parts per billion): One part per billion in water is like one drop in one billion drops of water, or about one drop in a swimming pool. ppb is the same as micrograms per liter (μg/l).

▪ ppm (parts per million): One part per million is like one drop in one million drops of water, or about one cup in a swimming pool. ppm is the same as milligrams per liter (mg/l).

▪ PWSID: Public water system identification.

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Monitoring Results – Regulated Substances

LEAD AND COPPER – Tested at customer taps.

Contaminant (Date, if sampled in previous year)

EPA’s Ideal Goal

(MCLG)

EPA’s Action Level

90% of Results Were

Less Than

Number of

Homes with High

Levels

Violation Typical Sources

Lead (09/01/20) 0 ppb 90% of homes less than 15 ppb

1.9 ppb 0 out of

NO Corrosion of household plumbing.

Copper (09/01/20) 0 ppm 90% of homes less than

1.3 ppm

1.3 ppm 1 out of

NO Corrosion of household plumbing.

INORGANIC & ORGANIC CONTAMINANTS – Tested in drinking water.

Contaminant (Date, if sampled in previous year)

EPA’s Ideal Goal

(MCLG)

EPA’s Limit

(MCL)

Highest Average or

Highest Single Test Result

Range of Detected

Test Results Violation Typical Sources

Barium (11/19/19) 2 ppm 2 ppm 0.14 ppm N/A NO Discharge of drilling wastes; Discharge from metal refineries;

Erosion of natural deposit.

Gross Alpha (2021)

0 pCi/l 15.4 pCi/l

9 pCi/l N/A NO Erosion of natural deposits.

Combined Radium (2021)

0 pCi/l 5.4 pCi/l

4.4 pCi/l N/A NO Erosion of natural deposits.

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CONTAMINANTS RELATED TO DISINFECTION – Tested in drinking water.

Substance (Date, if sampled in previous year)

EPA’s Ideal Goal (MCLG or MRDLG)

EPA’s Limit

(MCL or

MRDL)

Highest Average or

Highest Single Test

Result

Range of Detected

Test Results Violation Typical Sources

Total Trihalomethanes (TTHMs)

N/A 80 ppb 25.7 ppb N/A NO By-product of drinking water disinfection.

Total Haloacetic Acids (HAA)

N/A 60 ppb 8.2 ppb N/A NO By-product of drinking water disinfection.

Total Chlorine 4.0 ppm 4.0 ppm 0.24 ppm 0.06 - 0.43 ppm

NO Water additive used to control microbes.

Total HAA refers to HAA5

OTHER SUBSTANCES – Tested in drinking water.

Substance (Date, if sampled in previous year)

EPA’s Ideal Goal

(MCLG)

EPA’s Limit

(MCL)

Highest Average or

Highest Single Test Result

Range of Detected

Test Results Violation Typical Sources

Fluoride 4.0 ppm 4.0 ppm 0.77 ppm 0.57 - 0.92 ppm

NO Erosion of natural deposits; Water additive to promote strong teeth.

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Monitoring Results – Unregulated Substances

In addition to testing drinking water for contaminants regulated under the Safe Drinking Water Act, we sometimes also monitor for contaminants that are not regulated. Unregulated contaminants do not have legal limits for drinking water.

Detection alone of a regulated or unregulated contaminant should not cause concern. The meaning of a detection should be determined considering current health effects information. We are often still learning about the health effects, so this information can change over time.

The following table shows the unregulated contaminants we detected last year, as well as human-health based guidance values for comparison, where available. The comparison values are based only on potential health impacts and do not consider our ability to measure contaminants at very low concentrations or the cost and technology of prevention and/or treatment. They may be set at levels that are costly, challenging, or impossible for water systems to meet (for example, large-scale treatment technology may not exist for a given contaminant).

A person drinking water with a contaminant at or below the comparison value would be at little or no risk for harmful health effects. If the level of a contaminant is above the comparison value, people of a certain age or with special health conditions - like a fetus, infants, children, elderly, and people with impaired immunity – may need to take extra precautions.