Exhibit_A4.pdf

Submitted by:

Bolton & Menk, Inc.

12224 Nicollet Ave.

Burnsville, MN 55337 P: 952-890-0509

Preliminary Engineering Inspection and Evaluation Report 300,000 Gallon Elevated Water Storage Tank MCF Faribault, Minnesota 0M2.133298

December 16, 2024

Exhibit A4

Prepared by: Bolton & Menk, Inc. | MCF (Faribault, MN) | 0M2.133298 Certification 300,000 Gal. Elevated Water Storage Tank Inspection and Evaluation

Certification

Preliminary Engineering Inspection and Evaluation Report

For

300,000 Gallon Elevated Water Storage Tank

MCF (Faribault), Minnesota

0M2.133298

December 2024

PROFESSIONAL ENGINEER

I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision, and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota.

Signature:

Typed or Printed Name: Seth A. Peterson

Date: 12/16/2024 License Number: 26468

Prepared by: Bolton & Menk, Inc. | MCF (Faribault, MN) | 0M2.133298 Table of Contents 300,000 Gal. Elevated Water Storage Tank Inspection and Evaluation Page i

Table of Contents

I. INTRODUCTION

II. INSPECTION METHODS

III. EVALUATION SUMMARY

1. INTERIOR WET

2. EXTERIOR

3. VALVE VAULT/PIT

4. STRUCTURAL/MISC. ITEMS

5. FOUNDATION

6. TELECOMMUNICATION EQUIPMENT

7. PAINT CHIP ANALYSIS

IV. RECOMMENDATIONS

1. INTERIOR WET

2. EXTERIOR

3. VALVE VAULT/PIT

4. STRUCTURAL/MISC. ITEMS

5. FOUNDATION

6. TELECOMMUNICATION EQUIPMENT

7. PAINT CHIP ANALYSIS

V. SUMMARY AND PROBABLE COST ESTIMATE

VI. PREPARATION CERTIFICATIONS

Appendix Appendix A: Photo Report and Plan Sheet

Appendix B: Tank General Information Report

Appendix C: Site Overview Photo

Prepared by: Bolton & Menk, Inc. | MCF (Faribault, MN) | 0M2.133298 INTRODUCTION 300,000 Gal. Elevated Water Storage Tank Inspection and Evaluation Page 1

I. INTRODUCTION

Bolton & Menk, Inc. was contracted by the State of Minnesota to conduct an inspection and evaluation for the Minnesota Department of Corrections (MCF) on its Faribault, Minnesota, Elevated Water Storage Tank on April 9, 2024. The site address is 1101 Lindon Lane, Faribault, Minnesota 55021. The tank is a 300,000-gallon, double-ellipsoidal style, built in 1961 by Universal Construction Company. The tank exterior color is a light blue tint, with no identifying logo. The inspection and evaluation were limited to a visual examination of surfaces accessible without special rigging. Additionally, an assessment was to be made of tank appurtenances to ensure their compliance with the current American Water Works Association (AWWA), Occupational Safety & Health Administration (OSHA), and other applicable standards.

At the time of the interior evaluation, the tank water level was at or near the bottom weld seam of the equator plate. The water was agitated as the tank was being filled during the observations from the roof access manway. Finally, and with assistance from MCF staff, an assessment was made of the water system for planning purposes specific to its operation without the tank in service during the tank’s future reconditioning.

The Water System was evaluated to support the Elevated Water Storage Tank. Information on recommendations are provided within the Inspection and Evaluation Report

Prepared by: Bolton & Menk, Inc. | MCF (Faribault, MN) | 0M2.133298 INSPECTION METHODS 300,000 Gal. Elevated Water Storage Tank Inspection and Evaluation Page 2

II. INSPECTION METHODS

The inspection and evaluation of this facility were completed following guidelines conforming to current AWWA D101, “Inspecting of Steel Tank Standpipes, and Elevated Tanks for Water Storage,” and Manual M42, as applicable. The condition of tank appurtenances such as ladders, and bolted connections not specifically addressed within the report under Structural / Miscellaneous Items, should be assumed satisfactory.

A structural analysis was not conducted determining the tank’s design compliance with current standards of AWWA D100, “Welded Steel Tanks for Water Storage;” however, a physical assessment of existing tank appurtenances and their compliance with current design standards was performed with discoveries noted therein. As such, conditions appearing contrary to or deemed unsafe by current OSHA regulations were recorded and are contained in this report.

Analysis of accessible coated surfaces was completed through visual assessment and following current standards set forth by the Society of Protective Coatings SSPC PA-2 “Measurement of Dry Film Thickness with Magnetic Gages”. An electromagnetic coating thickness gauge was used to determine dry film coating thickness. Photos were taken with a digital camera.

The overall assessment of various areas of the tank for inherent deficiencies, such as degree of rusting and adhesion, was conducted following the applicable American Society for Testing and Materials (ASTM International):

• ASTM D3359 Test Method for Measuring Adhesion by Tape

• ASTM D610 Method of Evaluating Degree of Rusting

Prepared by: Bolton & Menk, Inc. | MCF (Faribault, MN) | 0M2.133298 EVALUATION SUMMARY 300,000 Gal. Elevated Water Storage Tank Inspection and Evaluation Page 3

III. EVALUATION SUMMARY

1. INTERIOR WET

1.1 Per information provided by MCF staff, it was reported that the interior wet portion of the tank was last coated approximately 14 years ago (2010) when the tower interior wet coatings received complete removal and replacement. Viewing from the roof’s access hatch to the interior wet, field observation revealed a protective coating that presents an overall fair condition with a few areas in poor condition. Though the present coating was applied approximately 14 years ago, observations reveal that coating service life performance is below expectation. (Reference Photo Report in Appendix A).

1.2 The protective coating on the interior wet roof plates is exhibiting rusting along plate edges, as well as rust-staining. The dual fill pipes, observed from the manway, are exhibiting similar rusting characteristics.

1.3 The upper shell plates exhibited spot rusting and mineral staining above the normal operating level.

1.4 The shell (equator) plate (what could be observed) exhibited a pattern of rust along the upper shell and center (equator) plate weld seam.

1.5 Lower portions of the tank interior surfaces were masked by the water level at the time of the evaluation. Due to the limited access, there were no dry film thickness readings taken in the interior wet portion of the tower.

2. EXTERIOR

2.1 Per information provided by MCF staff, it was reported that the exterior portion of the tank was also last coated approximately 14 years ago (2010) when the tower exterior coatings received complete removal and replacement.

2.2 The overall exterior protective coatings, as evidenced by varying types of observed defects such as rusting, rust bleed, and severe inner-coat delamination (tank bowl), identify it as being in poor condition.

2.3 The coating system, starting with the support columns, appears to be in good condition though moderately chalked; however, as indicated by cross-cut adhesion testing, spot areas exhibited a level 1A to 2A, with 5A representing only trace removal of the coating. The tank's wet riser exhibited moderate to major amounts of dirt and mildew especially near the lower half, along with significant rust-bloom on the east side of the upper half. It too exhibited adhesion issues as indicated by a 1A rating. The tank’s bottom bowl gave indications of moderate dirt and mildew similar to the wet riser, along with small areas of spot corrosion. Of greatest concern is the condition of the tank shell, especially the east half, which exhibits moderate dirt and mildew, but more significantly large areas of inner-coat delamination and bubbling. There is a minor amount of dirt and mildew on the tower roof, and rust streaking (mineral staining) that appears to result from the tank roof vent. It appears that the vent may be leaking traces of water caused by the turbulence when filling the tower. A minor amount of micro-cracking was also observed.

2.4 The tank roof is equipped with a hinged-style access hatch within the confines of the handrail system and one outside at the roof radial plate.

300,000 Gal. Elevated Water Storage Tank Inspection and Evaluation Page 4

2.5 The tank has a 24” aluminum vent with a bolted flanged opening. The vent is a pressure-relief “frost-free” design. The vent screen was deteriorated to the extent of nearly completely gone.

2.6 The tower roof is also equipped with an LED aviation obstruction light.

2.7 Random dry film thickness (DFT) readings taken on the tower wet riser reveal a coating thickness of 9.9 mils. Random dry film thickness readings taken on the exterior shell reveal a coating thickness of 7-13 mils.

3. VALVE VAULT/PIT

3.1 A below-grade formed concrete valve vault is located east and adjacent to the wet riser. It is accessible through a locked 24-inch round manway, with standard poured-in cleats. The vault is unpainted and is without a sump or heating system. The 10-inch fill pipe runs north to south or perpendicular to the access steps. The fill pipe is split by a 10-inch valve, with each half teeing off as the tank has dual fill pipes going to the bowl and supported at the roof dollar plate. The water then appears to discharge at about the midway point of the roof radial plate, providing circulation. A pipe provides support for the concrete ceiling slab. Photos within Appendix A identify existing sampling taps. Piping within the vault is heavily chalked and exhibits rust staining and spot corrosion.

4. STRUCTURAL/MISC. ITEMS

4.1 The wet riser has two, 24-inch (bolted and pressure style) manways located approximately 180° accessible at the tank base.

4.2 The access ladder to the balcony is within code and is equipped with a ladder gate and cable-style safety climb system.

4.3 Anchor chairs protect the connection points for both the wet riser and support columns.

4.4 Tank overflow discharges through a screened 10-inch pipe with an alarmed flapper gate; however, the discharge needs to be raised to provide a minimum drop of 12 inches. Further, it was identified that several of the welded tabs supporting the overflow pipe appear cracked. Though further assessment may be required, the cause may be related to stress from the balcony associated with overloading by the antennas attached to the hand railing.

4.5 The ladder from the balcony (catwalk) to the transitional platform on the roof is also within code and is equipped with a cable-style safety climb system.

4.6 The roof handrail system is OSHA compliant and encompasses both a 24-inch aluminum frost-free vent and a 24-inch dia. roof access manway.

4.7 Though operational, the existing screened pallet is ripped. Further, it appears to be rusting and staining both the roof and shell plate and should be replaced.

4.8 Outside the confines of the handrail is another 24-inch dia. manway. Its proximity to the handrail should provide an adequate tie-off point.

4.9 There is no recirculation pump system installed on the tower’s inlet/outlet pipe.

4.10 The tower is not equipped with a tank mixer.

300,000 Gal. Elevated Water Storage Tank Inspection and Evaluation Page 5

5. FOUNDATION

5.1 The foundation of the wet riser has a complete lateral crack running north to south on the west half, outside the riser. Areas of spalled grout were also apparent. Several of the support column foundations are experiencing lateral cracking and edge spalling of the concrete. It was apparent that some of the areas had been previously repaired.

6. TELECOMMUNICATION EQUIPMENT

6.1 Private telecommunication equipment is installed on the tower’s balcony (catwalk handrail), consisting of a dish and multiple panel antennas (AT&T). The equipment is attached with mounting posts to the tower’s steel railing. Currently, loading issues appear to exist with the equipment loading causing structural deformation; this is addressed in paragraph 4.1. It is our understanding from MCF that the existing AT&T equipment is scheduled to be removed.

7. PAINT CHIP ANALYSIS

7.1 Paint chip samples were not taken to determine the presence of heavy metals (lead, chromium, cadmium), as evidence exists from historical information and adhesion testing that complete coating removal and replacement had been made post-2000, with its replacement being a three-coat epoxy urethane coating system.

Prepared by: Bolton & Menk, Inc. | MCF (Faribault, MN) | 0M2.133298 RECOMMENDATIONS 300,000 Gal. Elevated Water Storage Tank Inspection and Evaluation Page 6

IV. RECOMMENDATIONS

1. INTERIOR WET

1.1 Given the 14-year-old age and observed conditions, the present coating system needs complete removal and replacement for a new coating system. It is recommended that the existing protective coatings be completely removed by an abrasive blast and receive a surface preparation as per SSPC-SP10 “Near White Metal Blast”. It is recommended that the prepared interior wet surface areas be replaced with a zinc/epoxy/epoxy protective coating system (or another NSF-approved protective coating system).

2. EXTERIOR

2.1 Given the present condition of the observed 14-year-old coating, it is recommended that the existing protective coating system on the tank’s exterior be completely removed with an abrasive blast and receive a surface preparation as per SSPC-SP6 “Commercial Blast”. It is recommended that the prepared exterior surface areas be replaced with a zinc/epoxy/polyurethane/fluoropolymer protective coating material system.

3. VALVE VAULT/PIT

3.1 The steel materials in the vault/pit should receive the same coating reconditioning as the interior wet coating schedule.

4. STRUCTURAL/MISC. ITEMS

4.1 It is recommended that the items listed below be added and/or modified along with the tank coating reconditioning.

4.1.1 Replace the existing roof vent screen pallet with a non-corroding material.

4.1.2 Add new #24 mesh screen to overflow pipe discharge.

4.1.3 Modify the existing overflow discharge pipe to comply with current design guidelines.

4.1.4 Replace bolts, where applicable, and neoprene/rubber pressure manway gaskets.

4.1.5 Provide new locks for all points of access.

4.1.6 Remove and replace with a “cable” style safety climb system on all ladders.

4.1.7 Add new recirculation pump piping in the tower base shelter.

4.1.8 Install a new tower mixer in the interior wet tank.

4.1.9 Seal the following with elastomeric caulk to inhibit the occurrence of rust bleed:

4.1.9.1.1 Gaps in the lapped plates, including the dollar to roof plate, and roof to roof radial/torus plates (seams above the normal waterline).

4.1.9.1.2 Roof openings and other roof penetrations.

4.1.10 Modify the inlet and outlet pipes to a single inlet/outlet pipe.

Prepared by: Bolton & Menk, Inc. | MCF (Faribault, MN) | 0M2.133298 RECOMMENDATIONS 300,000 Gal. Elevated Water Storage Tank Inspection and Evaluation Page 7

5. FOUNDATION

5.1 It is recommended that foundations receive a power wash and abrasive “brush blast”.

Any damaged grout or concrete should also be repaired prior to the tank’s coating application.

5.1.1 Remove loose, cracked, and spalled grout under the base plate of the support column(s) and the wet riser as noted in the Evaluation Summary. Repair using non-shrink high-strength grout.

5.1.2 Repair the concrete footing as noted in the summary. Remove all spalled and loose concrete, drill holes into the foundation and tie-in reinforcement bars as applicable, and patch with concrete. Repair cracks utilizing epoxy injection or as directed by an Engineer.

5.1.3 Regrade areas around foundations to promote draining away from the tank area.

6. TELECOMMUNICATION EQUIPMENT

6.1 Reference Section III, Evaluation Summary, paragraph 6.1.

7. PAINT CHIP ANALYSIS

7.1 Reference Section III, Evaluation Summary, paragraph 7.1.

8. WATER SYSTEM

8.1 Three 10-inch wheel valves in the valve vault/pit need to be removed and replaced.

Piping attached to the two 10-inch lines will require updating, and sample and pressure gauges added to support operations. Images of the valve vault/pit and Plan Sheet 4 of 5 are provided in Appendix A.

8.2 One 10-inch line will be partially removed which currently serves as an aeration component for the elevated tank. Three feet of this pipe will remain and be capped with a flanged cap and gasket with stainless bolts. A singular one-inch hole below this point will need to be capped/plugged. The best method will be determined during the planned improvements. Plan Sheet 4 of 5 is provided for reference in Appendix A.

8.3 Water supply during the improvements will be completed through two means.

1. Supply of water is proposed from the City of Faribault, MN allowing the valve vault/pit improvements to occur. 2. The Correctional Facility wells are capable of supplying water once the valve vault/pit improvements are completed.

8.4 Water supply from the City of Faribault is predicated on the replacement of the current inner-connect meter. A two-way magnetic meter is required to be installed in the current inner-connect manhole. Information is forthcoming on this subject matter.

Prepared by: Bolton & Menk, Inc. | MCF (Faribault, MN) | 0M2.133298 SUMMARY AND PROBABLE COST ESTIMATE 300,000 Gal. Elevated Water Storage Tank Inspection and Evaluation Page 8

V. SUMMARY AND PROBABLE COST ESTIMATE

As discussed under our recommendations, the tower’s protective coating system is exhibiting signs of aging and (exterior) severe delamination of the coating system, especially with the balcony (catwalk) and bowl surfaces. Areas not as severely affected visually appear to have poor adhesion capabilities through to the substrate. Respective of our observation, and that of the video still photos presented in the 2021 report, it is apparent that the interior coating has also exceeded its protective effectiveness. Given the above assessment, the tower’s present protective coating is not a suitable candidate for a subsequent overcoat. We recommend that a complete removal and replacement be considered.

Along with the above-recommended scope of work, we further recommend completing the aforementioned structural modifications.

Based on present industry pricing, a complete full coating rehabilitation, and reconditioning cost is estimated to be between $575,000 - $625,000, depending on the modifications and coating improvements selected.

Prepared by: Bolton & Menk, Inc. | MCF (Faribault, MN) | 0M2.133298 PREPARATION CERTIFICATIONS 300,000 Gal. Elevated Water Storage Tank Inspection and Evaluation Page 9

VI. PREPARATION CERTIFICATIONS

Inspection, Evaluation, and Report Performed By:

James R. Connor NACE Certified Coatings Inspector #33440 AWS Certified Welding Inspector #92110161

Daniel J. Zienty NACE Certified Coatings Inspector #3186

Report Reviewed By:

Seth A. Peterson, P.E.

Appendix A: Photo Report and Plan Sheet

Photograph #: 1

Date: April 9, 2024 ~ 300,000 Gallon Elevated Water Tank ~ MCF Faribault, MN

Subject: Overview of tank exterior - East

Photograph #: 2

Subject: Exterior bowl condition – East view

Photograph #: 3

Subject: Existing antennas Southeast sector of bowl

Photograph #: 4

Subject: Tank identification plate

Photograph #: 5

Subject: View of bottom bowl and wet riser general condition

Photograph #: 6

Subject: Tank access ladder and Ladder gate at East support column

Photograph #: 7

Subject: Existing AT&T equipment shelter and generator

Photograph #: 8

Subject: Existing cables and brackets attached with stainless steel straps to support column

Photograph #: 9

Subject: Typical Dry Film reading from wet riser

Photograph #: 10

Subject: 24” inch diameter bolted access hatch at wet riser - East

Photograph #: 11

Subject: 24” inch diameter pressure access hatch at wet riser - West

Photograph #: 12

Subject: 10” inch overflow discharge with No.4 screen and alarmed flapper gate

Photograph #: 13

Subject: Overflow discharge distance <12” inches minimum

Photograph #: 14

Subject: Corrugated overflow splashpad discharging West

Photograph #: 15

Subject: Cracking and spauling of tank foundation

Photograph #: 16

Subject: Concrete spauling along edge of previous foundation repair

Photograph #: 17

Subject: View of cracked weld at overflow pipe attachment bracket

Photograph #: 18

Subject: View of center column foundation and valve vault entry

Photograph #: 19

Subject: View of valve vault access steps

Photograph #: 20

Subject: View of 10” inch valve vault piping and interior support column

Photograph #: 21

Subject: View of dual 10” inch fill pipes

Photograph #: 22

Subject: Foundation in need of grout repair at wet riser

Photograph #: 23

Subject: 1A adhesion test result at wet riser. Confirmation of existing 3-coat system

Photograph #: 24

Subject: 2A adhesion test result at support column

Photograph #: 25

Subject: Conditional view of cross-bracing and tie-rods

Photograph #: 26

Subject: Conditional view of underside of catwalk

Photograph #: 27

Subject: Conditional of wet riser with inherent rust bleeding and paint delamination

Photograph #: 28

Subject: Southeast side view of catwalk and tank shell plate

Photograph #: 29

Subject: Westside view of catwalk, stressed handrail system caused by tenant equipment

Photograph #: 30

Subject: Top measurement, shell to handrail 34” inches

Photograph #: 31

Subject: Bottom measurement, shell to handrail toeplate 30” inches

Photograph #: 32

Subject: Tank shell plate eastside, excessive delamination of top and intermediate coat

Photograph #: 33

Subject: Closeup view eastside shell plate delamination

Photograph #: 34

Subject: Shell plate northeast, mildew, and rust staining from roof vent

Photograph #: 35

Subject: Shell plate eastside exhibiting excessive mildew

Photograph #: 36

Subject: Close up shell plate eastside, exhibiting mildew and bubbling defect

Photograph #: 37

Subject: View of west side of tank and overflow pipe

Photograph #: 38

Subject: Tank bowl access ladder

Photograph #: 39

Subject: View bowl access; catwalk to transition roof platform

Photograph #: 40

Subject: Transition platform to roof

Photograph #: 41

Subject: Roof handrail system

Photograph #: 42

Subject: Roof condition inside handrail system

Photograph #: 43

Subject: Damaged roof vent pressure pallet screen

Photograph #: 44

Subject: 24’ inch frost-free roof vent

Photograph #: 45

Subject: Roof condition outside of handrail system. Staining from roof vent

Photograph #: 46

Subject: 24” inch roof manway outside of handrail system

Photograph #: 47

Subject: Dual tank fill pipes; view of present condition - Roof plates

Photograph #: 48

Subject: Condition of roof and upper shell plates indicates light rusting and staining

Photograph #: 49

Subject: (1) Rusting along the weld seam of the upper shell and equator plates

Photograph #: 50

Subject: General rusting of the roof and dollar (center) plates

Photograph #: 51

Subject: (2) Rusting along the weld seam of the upper shell and equator plates

Photograph #: 52

Subject: Tank road access viewing north

Photograph #: 53

Subject: Tank road access viewing south

Photograph #: 54

Subject: View of general site access

Appendix B: Tank General Information Report

Water Storage Tank General Information Report

Customer: Faribault Correctional Facility

Project Desc: Water Storage Tank Evaluation

Project No.: 0M2.133298 Contact: Jesse Artmann

Address: 400 6th Avenue SE.

Faribault, MN 55021

Evaluation Date:

April 9, 2024

Inspector(s) Dan Zienty / James Connor

Site

Address: 400 6th Avenue SE. - Faribault, MN 55021

Tank Style: Multi-Legged

Description: North: Grassy

South: Wooded

East: Grassy / Driveway / Road

West: Wooded

Access type: Ladder (Column Leg) Security: Padlock

Orientation: Security Door-Southeast Overflow Discharge- West

Direction of Site Drainage: West

Tank Information

Manufacturer: Universal Const. Co. Year Built: 1961 Serial No. Unknown

Capacity (Gallons)

Dwg’s Avail:

Construction Type

Height (Approx.)

ROOF HWL LWL

Tank Dia.

300,000 Yes Welded Steel Appx. 160’ Appx. 155’ Appx. 130’ Appx. 30’

Foundation

Concrete/Grout Fair – Some Damaged Column Leg/Base (Dia.) – 30”

Anchor rods/nuts #2 / #4 Ea. Diameter- 1.25”/ 1.75” Condition- Fair

Splash Pad/Basin Yes Size- 4’ x 8’ Condition- Fair

Accessories Information

Ladders Caged/Dia. Safety Device / Type Rung width/distance

Interior (Wet) N/A N/A N/A

Exterior (roof) No Yes / Cable 16” / 12”

Exterior (Leg) No Yes / Cable 16” / 12”

Wet Riser Diameter – 60” Pedestal Diameter - Cone Base Diameter -

Fill Pipe Size – 10” Insulated- No Outlet Pipe Size- 10” Wet Riser (Dia.) - 60”

Drain Plug? No Mud Valve? No Comment- N/A

Drain(s): No Screened? N/A

Overflow Pipe- 10” Distance to Grade: 8” Screen? #4 Flapper? No

Railings Type Height

Dia./ Wide

Mid-rail?

Toe Plate?

Comment:

Roof Pipe 42” 20’ Yes Yes Fair

Balcony/Catwalk Angle 42” 30” Yes Yes 2 ½” x2 ½” - 2”x2”

Sway Rods & Struts Condition 2” Diameter – Fair Condition

Antennas (type) Location Owner Condition/Comments

Panels Balcony AT&T Structure Overload (Balcony)

Dish Balcony AT&T Structure Overload (Balcony)

Note: Plan for permanent removal per MCF in May 2025.

Manways (location) Size Type Condition/Comment

Wet Riser Pipe Access – (2) 24” Pressure/Bolted

Interior Wet Roof Hatch (2) 30” / 24” Hinged 24” outside railing

Painters Vent

Interior Wet Floor Access

Vent(s) (Location) Size: Screened: Frost Free:

Roof 24” Bad Screen Yes

Lighting Aviation: LED (2) Operational: ? Comment: Photo Eye column leg

Interior: N/A Operational: N/A Comment:

Vault? Yes Recirculation Pump? No Mixer? No

Sump Pit? No Size - No Sump Pump? No Operational- N/A

Cathodic Protection System? No Comments: Previously Removed

Coating Information

Date Last Painted 2010

Painting Contractor Classic Protective Coatings

Complete or Partial Complete

Surface Preparation Interior SP-10

Surface Preparation Exterior SP-6

Coating Manufacturer Tnemec

Coating System Interior Epoxy/Epoxy

Coating System Exterior Epoxy/Epoxy/Urethane

Suspect Lead: No Lead Check Test: No Sample(s) taken: No

Coating Condition

Interior Wet Fair to Poor

Interior Dry N/A

Exterior Poor – Severe Coating Failure (Tank Shell & Wet Riser) Column Leg – 8-12Mils Tank Shell – 6-13 Mils

Logo None

Appendix C: Site Overview Photo

Site Overview MFC Faribault, Minnesota