RFQ_261 Highway 92 Tank Washout and Repair.pdf

DOUGLASVILLE – DOUGLAS COUNTY

WATER AND SEWER AUTHORITY

8763 Hospital Drive

Douglasville, Georgia 30134

REQUEST FOR QUOTES

FOR

Highway 92 Tank Washout and Repair

RFQ #261

October 9, 2024

DOUGLASVILLE – DOUGLAS COUNTY WATER AND SEWER AUTHORITY

8763 Hospital Drive

Douglasville, Georgia 30134

REQUEST FOR QUOTES

October 9, 2024

RFQ# 261

The Douglasville – Douglas County Water and Sewer Authority (hereafter referred to as the “Authority”) is soliciting quotes from qualified contractors for the Highway 92 Tank Washout and Repair (the “Project”). Quotes will be received by the Authority at its Administrative Offices located at 8763 Hospital Drive, Douglasville, Georgia 30134 until 10:00 AM, local time, on November 6, 2024. All quotes should be delivered to the Senior Procurement Specialist at the Authority’s Administrative Offices, 8763 Hospital Drive, Douglasville, Georgia 30134, by the time and date specified above. Quotes shall be submitted in duplicate, sealed, and mailed or delivered, to be received no later than the above time and date.

A non-mandatory conference will be held at 10:00 a.m. on Wednesday, October 23, 2024 at the Authority’s Administrative Offices located at 8763 Hospital Drive, Douglasville, Georgia 30134. Immediately following the conference, Offerors will be afforded an opportunity to inspect the facility covered by this Request for Quotes. This facility can also be inspected, by appointment only, throughout the advertisement period.

The Authority reserves the right to reject all quotes or any quote that is nonresponsive or submitted by a non-responsible Offeror. The Authority reserves the right to waive technicalities and informalities in this Request for Quotes and the quotes submitted.

The work will be performed on property owned by the Authority, and no easements or utility permits are required for the performance of the work required by this Request for Quotes.

GENERAL INFORMATION

SECTION 1 - PURPOSE

The Authority is soliciting quotes from qualified contractors for the Highway 92 Tank Washout and Repair (the “Project”).

SECTION 2 – SCOPE OF SERVICES

Reference the attached Highway 92 Tank Inspection Report for further details on the scope of work, which is as follows:

• Perform a washout of the tank based on a coordinated schedule with the Authority.

The Authority will perform tank inspection after washout. The contractor will properly dispose of any sediment washed out of the tank in accordance with applicable local, state, and federal regulations.

• On the interior surface of the tank, repair spots of corrosion on weld seams.

• Replace manway bolts with stainless steel bolts.

• Replace sealant in cracks on tank foundation.

• After cleaning and repairs, the tank shall be properly disinfected to allow the tank to be put back into service.

The Contractor shall be responsible for the provision of all labor, tools, equipment, and materials necessary for the proper completion of the Project, in accordance with the specific Project plans and specifications and the Authority’s Design and Construction Standards. A copy of the Authority’s Design and Construction Standards may be obtained from the Authority’s Engineering Department at a cost of $25.00 per set or on the Authority’s website.

The Contractor shall have sixty (60) consecutive calendar days from issuance of the notice to proceed in which to complete performance of this Project.

SECTION 3 – INSTRUCTIONS TO OFFERORS

Quotes shall be submitted in duplicate, sealed and delivered to the Douglasville-Douglas County Water and Sewer Authority, 8763 Hospital Drive, Douglasville, Georgia 30134.

Each quote must be placed in a sealed envelope. The Offeror’s return address must be in the upper left corner of the envelope. On the outside lower left corner, the following information should be affixed:

REQUEST FOR QUOTES

November 6, 2024

RFQ #261

Attn: Joseph Morency, Senior Procurement Specialist

Responsibility for submission of the quotes to the Authority on or before the specified time and date is solely and strictly that of the Offeror. The Authority will not be held responsible for delays for any reason. Quotes by telephone, telegram, facsimile, email, etc. will not be accepted.

Quotes must be received and stamped with the time and date at the Authority before the specified time and date. Quotes received after the specified time and date will not be accepted or considered. Such quotes will be returned to Offeror unopened. All quotes properly received will be opened, acknowledged, and evaluated by Authority officials.

SECTION 4 – QUESTIONS REGARDING REQUEST FOR QUOTES

In general, no answer will be given to an oral question if the answer involves an interpretation of the intent or meaning of any part of this Request for Quotes. Any information given to Offerors other than by means of this Request for Quotes or by addenda as described below is given informally and shall not be used as the basis of a claim against the Authority.

To receive consideration, questions shall be submitted by e-mail to the Senior Procurement Specialist, Joseph Morency, at jmorency@ddcwsa.com by the close of business at least seven (7) days before the advertised date for receipt of quotes. The Authority will then issue written responses to Offerors at the addresses given by them (including by email, if deemed most expedient by the Authority), on or about four (4) days before the date set for the receipt of quotes, addressing all questions so raised which in its opinion require interpretation.

SECTION 5 – SUBMITTAL CONTENTS

Quotes shall include the following items. Additionally, each Offeror may submit such other information as deemed appropriate for the proper evaluation of the quote.

A. Description of fees proposed for all services shall be based on a LUMP SUM

QUOTE for the project, the sum of which shall be clearly identified as the TOTAL QUOTE AMOUNT. All costs for fees, labor, materials, and equipment shall be identified in the proposal. (Contractor should use attached Quote Evaluation Form.)

B. E-Verify Contractor Affidavit and Agreement (Attachment) should be completed and submitted with Offeror’s response to this Request for Quotes.

SECTION 6 – AWARD OF PROJECT

If the Authority determines that it is in the best interest of the Authority to proceed with an award of the Project made the subject of this Request for Quotes, then the Authority shall award a purchase order based on the lowest responsive TOTAL QUOTE AMOUNT mailto:jmorency@ddcwsa.com submitted by a responsible Offeror within sixty (60) days of the date of opening of the quotes.

SECTION 7 – REJECTION OF QUOTES

The Authority reserves the right to reject all quotes or any quote that is nonresponsive or submitted by a non-responsible Offeror. The Authority reserves the right to waive technicalities and informalities in the Request for Quotes or the quotes received in response thereto.

SECTION 8 – INSURANCE REQUIREMENTS

The Contractor shall be required to maintain and provide proof of insurance throughout the term of the contract. Without restricting the obligations or liability of the Contractor under the contract, the Contractor shall, at his own cost and expense, carry and maintain insurance of the types and amounts listed below:

A. Worker’s Compensation Insurance, as required by the laws of the State of Georgia;

B. Contractor’s Direct Bodily Injury Liability Insurance;

C. Contractor’s Direct Property Damage Liability Insurance, including collapse, blasting, explosion, and underground damages;

D. Contractor’s Protective Bodily Injury Liability Insurance;

E. Contractual Bodily Injury Liability Insurance, covering the liability assumed by the

Contractor;

F. Contractual Property Damage Liability Insurance, covering the liability assumed by the Contractor;

G. Bodily Injury Liability Insurance, covering all motor vehicles owned by the Contractor and all motor vehicles not owned by the Contractor while such vehicles are being operated in connection with the prosecution of the work contemplated by this Request for Quotes; and

H. Property Damage Liability Insurance, covering all motor vehicles owned by the

Contractor and all motor vehicles not owned by the Contractor while such vehicles are being operated in connection with the prosecution of the work contemplated by this Request for Quotes.

All Bodily Injury Liability Insurance shall be provided with minimum limits of Two Hundred Fifty Thousand Dollars ($250,000.00) per person and One Million Dollars ($1,000,000.00) per accident.

All Property Damage Liability Insurance, except that covering motor vehicles, shall be provided with minimum limits of Two Hundred Fifty Thousand Dollars ($250,000.00) per accident, and, subject to such limit per accident, One Million Dollars ($1,000,000.00) on account of all accidents. Property Damage Liability Insurance covering the operation of motor vehicles shall be provided with minimum limits of Two Hundred Fifty Thousand Dollars ($250,000.00) per accident.

All policies shall be so written that the Authority will be notified of cancellation or restrictive amendment at least thirty (30) days prior to the effective date of such cancellation or amendment. Certificates in triplicate from the insurance carrier, stating the limits of liability and expiration date, shall be filed with the Authority at the time of execution of the contract.

Such certificates shall not merely name the type of policy provided, but shall specifically refer to the contract and this requirement, and state that such insurance is as required hereby.

All policies shall specifically name the Authority as an additional insured, which shall also be indicated on the Certificates of Insurance coverage.

SECTION 9 – LEGAL OBLIGATIONS.

A. Indemnification of the Authority. The Contractor shall be responsible at all times for all injury or damage of any kind resulting from any work (or omission) to persons or property, including employees and property of the Authority. The Contractor shall indemnify and forever hold and save the Authority harmless from and against all claims or actions, and expenses incidental to the defense of any such claims or actions, based upon or arising out of damage or injury (including death) to persons or property caused by or sustained in connection with the performance of the contract or by conditions created thereby or arising out of, or in any way connected with said work (or omission) (except that the Authority shall not be indemnified for its own sole negligence). The Contractor shall assume and pay for, without cost to the Authority, the defense of any and all claims, actions, and litigation suffered through any act or omission of the Contractor. The Contractor expressly agrees to defend against any claims brought or actions filed against the Authority, where such claim or action involves, in whole or in part, the subject or indemnity contained herein, whether such claims or actions are rightfully or wrongfully brought or filed.

All crews, subcontractors, agents, employees, entities, or individuals assigned by the Contractor to perform any work under the contract shall be the responsibility of the Contractor.

B. Risk of Loss on Contractor. All loss or damage arising out of the performance or nature of the work, or any damage to the work itself to be done under the contract, or from any unforeseen obstruction or difficulties which may be encountered in the prosecution of the same, or from the action of the elements, or from any cause or causes whatsoever, until the same shall have been finally accepted by the Authority, shall be sustained and paid for by the Contractor.

C. Information Not Guaranteed. It is understood and agreed that the Authority does not warrant or guarantee the information provided or the materials or conditions to be encountered during construction of the Project. The Contractor shall be responsible for investigating the Project site(s) and satisfying himself regarding the character, quantities, and conditions of the various materials and work to be done.

The Contractor assumes the risk of all discrepancies between the information given and the actual conditions encountered.

It is further understood and agreed that the Contractor will not use any of the information made available to him, or obtained in any examination made by him, in any manner as a basis or ground of claim or demand of any nature against the Authority, arising from or by reason of any variance which may exist between the information offered and the actual materials or structures encountered during the construction work.

D. Protection of Existing Structures. The Contractor shall so conduct his operations as not to damage existing structures. In case of any such damage resulting from the Contractor’s operations, the Contractor shall repair and make good as new the damaged portions at his own expense.

E. Intoxicating Liquors and Illegal Drugs. The Contractor shall not permit the presence or use of intoxicating liquors or illegal drugs upon or about the work provided for in the contract.

F. Compliance with Applicable Laws. The Contractor shall keep himself fully informed of all existing and future State and federal laws, all regulations of the various departments and agencies of the State in which the work is to be performed, and municipal ordinances and regulations in any manner affecting the work or those engaged or employed in the work, including but not limited to the Authority’s Design and Construction Standards and the Authority’s Rules and Regulations. The Contractor shall at all times himself observe and comply with, and cause all his agents, employees, and subcontractors to observe and comply with all such existing and future laws, ordinances, regulations, orders, and decrees; and shall protect and indemnify the Authority and the Authority’s representatives, officers, and agents against any claim or liability arising from or based upon violation of any such law, ordinance, regulation, order, or decree, whether by the Contractor or the contractor’s agents, employees, or subcontractors.

SECTION 10 – SAFETY AND HEALTH REGULATIONS

The Contractor shall be fully and solely responsible for job site safety and all safety related matters. The Authority and the Authority’s representatives, officers, and agents shall not be responsible for job site safety. The Contractor shall indemnify the Authority and the Authority’s representatives, officers, and agents for any and all job site safety matters.

The Contractor shall comply with the safety and health standards of the United States Department of Labor, and of the State in which the work is performed, pursuant to the Williams-Steiger Occupational Safety and Health Act of 1970. The Department of Labor has adopted regulations entitled “Safety and Health Regulations for Construction” and subsequent amendments promulgated by the Department of Labor, Chapter XVII of Title 29, Code of Federal Regulations (CFR), Part 1926 (formerly Chapter XIII of Title 29, CFR, Part 1518).

The Contractor shall maintain an accurate record of, and will report to the Authority, exposure data and all accidents resulting in death, traumatic injury, occupational disease, and damage to property, materials, supplies, and equipment incident to the work performed under this contract.

Compliance with the provisions of this Section by subcontractors shall be the responsibility of the Contractor.

SECTION 11 – PAYMENT

A. Georgia Prompt Pay Act. Payments shall be made by the Authority to the Contractor in accordance with the Georgia Prompt Pay Act.

B. Withholding of Payments. The Authority may withhold payments, for cause shown to exist, in accordance with the Georgia Prompt Pay Act.

C. Con tracto r’s Certificat e. Before final payment is made, the Contractor shall furnish a Contractor’s Certificate stating that all offers for labor and materials and all outstanding claims and indebtedness, including state and federal taxes requested to be withheld, of whatsoever nature arising out of the performance of the Contractor have been paid.

SECTION 12 – RESTORATION OF WORK SITE.

The Contractor shall return all disturbed areas to their pre-existing condition or better. The Contractor agrees to perform the contract without any adverse environmental impacts.

The Contractor agrees to implement and enforce sound pollution prevention practices throughout all phases of the Project.

SECTION 13 – WARRANTY

In addition to specific product warranties that may be included as part of the Offeror’s quote, the Contractors shall be required, at a minimum, to warrant all work performed under the contract for a period of one (1) year from the date of acceptance of the Project by the Authority. The Contractor shall guarantee all work to be performed in a good and workmanlike manner in compliance with manufacturers’ specifications and accepted industry standards.

The Contractor agrees to replace and/or repair any work that may be rejected due to workmanship (a) prior to final completion and acceptance of the work by the Authority or

(b) within the one (1) year warranty period required by this section. If any problems are detected with the work after acceptance of the Project, the Authority will notify the Contractor by mail. Should problems arise that require emergency action, the Authority will attempt to contact the Contractor through the Contractor’s designated 24-hour contact.

However, if the Authority is unable to reach the Contractor, or if the Contractor fails for any reason to accomplish resolution of the identified issues, then the Authority shall correct all problems and back-bill the Contractor, who shall be responsible for all charges associated with the corrective/repair work at the current billing rates established by the Authority.

SECTION 14 – IMMIGRATION COMPLIANCE

Each Contractor shall certify its compliance with the Georgia Security and Immigration Compliance Act of 2006 and the Employment Eligibility Verification (EEV)/Basic Pilot Program operated by the U.S. Citizenship and Immigration Services Bureau of the U.S.

Department of Homeland Security as the electronic federal work authorization program (E- Verify) to be utilized for these purposes. Such certification shall be included with the quote submittal. Any subcontractor engaged by the successful contractor shall also provide such certification as required by law and in a form satisfactory to the Authority prior to performing any work on the Project.

SECTION 15 – JURISDICTION AND VENUE

The Contractor, for value received, hereby stipulates and agrees that any and all claims, demands, actions, or suits whatsoever, arising under this Request for Quotes or the contract to be entered into pursuant hereto shall be subject to the exclusive jurisdiction and venue of the Superior Court of Douglas County, Georgia. The contractor agrees, by execution of the contract documents that jurisdiction and venue is proper and appropriate in said forum as the site of performance of the contract. The Contractor voluntarily consents, by execution of the contract documents, to exclusive jurisdiction and venue in Douglas County, Georgia.

QUOTE EVALUATION FORM

Name of Contractor

The undersigned contractor hereby submits its LUMP SUM QUOTE for the provision of all labor, materials, tools, and equipment necessary for the construction of the Highway 92 Tank Washout and Repair Project, in compliance with all requirements of the Request for Quotes dated October 9, 2024 and all Addenda thereto.

TOTAL QUOTE AMOUNT (in numbers)

TOTAL QUOTE AMOUNT (in words) and /100 Dollars

Name of Contractor

Address

Office Phone Cell Phone Fax

Printed Name of Authorized Representative

Signature of Authorized Representative

Title of Authorized Representative

(Corporate Seal, if applicable)

GEORGIA SECURITY AND IMMIGRATION ACT OF 2006

Georgia Security and Immigration Compliance Act Affidavit (Contractor Affidavit – Due with Proposal)

By executing this affidavit, the undersigned contractor verifies its compliance with O.C.G.A. § 13-

10-91, stating affirmatively that the individual, firm or corporation which is contracting with Douglasville- Douglas County Water and Sewer Authority, has registered with, is authorized to use and is participating in a federal work authorization program* [any of the electronic verification of work authorization programs operated by the United States Department of Homeland Security or any equivalent federal work authorization program operated by the United States Department of Homeland Security to verify information of newly hired employees, pursuant to the Immigration Reform and Control Act of 1986 (IRCA), P.L. 99-603], in accordance with the applicability provisions and deadlines established in O.C.G.A. § 13- 10-91. The undersigned affirms that it is using and will continue to use the federal work authorization program throughout the contract period.

The undersigned further agrees that should it employ or contract with any subcontractor(s) for the physical performance of services pursuant to the contract with Douglasville-Douglas County Water and Sewer Authority, the Contractor will secure from the subcontractor(s) verification of compliance with O.C.G.A. § 13-10-91 on the attached Subcontractor Affidavit (EXHIBIT A-1). The Contractor further agrees to maintain records of such compliance and shall provide a copy of each such verification to Douglasville-Douglas County Water and Sewer Authority, at the time the subcontractor(s) is retained to perform such services.

EEV / Basic Pilot Program* User Identification Number Date of Authorization

BY: Authorized Officer or Agent Date Signed

[Contractor Name]

Title of Authorized Officer or Agent of Contractor

Printed Name of Authorized Officer or Agent

SUBSCRIBED AND SWORN BEFORE ME ON THIS

THE DAY OF , 20_ _.

Notary Public

My Commission Expires:

Georgia Security and Immigration Compliance Act Affidavit (Subcontractor Affidavit)

By executing this affidavit, the undersigned subcontractor verifies its compliance with O.C.G.A. § 13-10-91, stating affirmatively that the individual, firm or corporation which is engaged in the physical performance of services under a contract with on behalf of DouglasviIle-Douglas County Water and Sewer Authority, has registered and is participating in a federal work authorization program* [any of the electronic verification of work authorization programs operated by the United States Department of Homeland Security or any equivalent federal work authorization program operated by the United States Department of Homeland Security to verify information of newly hired employees, pursuant to the Immigration Reform and Control Act of 1986 (IRCA), P.L. 99603], in accordance with the applicability provisions and deadlines established in O.C.G.A. § 1310-91.

EEV I Basic Pilot Program* User Identification Number Date of Authorization

BY: Authorized Officer or Agent Date Signed

[Subcontractor Name]

Title of Authorized Officer or Agent of Subcontractor

Printed Name of Authorized Officer or Agent

SUBSCRIBED AND SWORN BEFORE ME ON THIS

THE DAY OF , 20_ _.

Notary Public

ATTACHMENTS

Highway 92 Tank – November, 2020 1

HIGHWAY 92

2,000,000 Gallon Ground Storage Tank

Highway 92 Tank – November, 2020 2

I. Introduction On November 17, 2020 the Highway 92 Tank was taken out of service, cleaned, and a complete interior and exterior inspection was performed. Once the inspection was complete, the tank was disinfected in accordance with AWWA recommendations and put back into service. The following is a summary of the inspection. Also included in the inspection report is a list of recommended rehabilitation work, a construction cost estimate, historical maintenance records, and a recommended maintenance ranking compared to other water storage tanks in the Douglasville – Douglas County Water and Sewer Authority (DDCWSA) water system.

II. General B. 2,000,000 gallon ground storage tank

C. Welded steel construction

D. Located near the intersection of Highway 92 and Pope Road

E. Free span cone roof with roof rafters supported by welded steel shell plates bearing on a reinforced concrete ringwall foundation system confining a sand cushion which supports the tank floor plates.

III. Observations

A. Exterior Coating

In the 2016 rehabilitation, the tank exterior coating system consisted of pressure washing and overcoating with the following:

• Spot prime coat: Tnemec Series 135

• Full prime coat: Tnemec Series 135

• Finish coat: Tnemec Series 72

The coating on the exterior shell plates is generally in excellent condition. Inter-coat adhesion and adhesion to the steel substrate appears to be good. The coating system had an average dry film thickness (DFT) of 14.6 mils. Minor mildew was observed in several areas on the bottom shell plates in between the anchor bolts.

The coating on the roof of the tank generally appeared to be in good condition.

Minor alligator cracking was observed around the hatch from excessive coating thickness. In addition, minor corrosion was observed around the magnets of the antenna and on the roof vent. A thin layer of mildew was observed in several areas of the roof. The average coating

Highway 92 Tank – November, 2020 3

DFT was measured to be 16.5 mils. Adhesion between the primer and steel substrate, as well as the inter-coat adhesion was determined to be good.

B. Tank Foundation

The tank is founded on a concrete ringwall. The ringwall ranges from 6-inches to 36-inches above finished grade and has positive drainage away from the foundation. The concrete foundation and grout bed below the tank base plate appear to be in good condition with minor cracking and spalling. During the last rehabilitation project, several small cracks along the top surface of the foundation between anchor bolts were filled with a sealant;

however, the sealant is deteriorating and pealing. These cracks do not appear to be a significant structural issue. Anchor bolts and chair anchors are located around the exterior of the tank at approximately 36-inch spacing.

C. Interior Coating

As part of the 2016 rehabilitation, the interior wet surfaces of the tank were prepared to an SSPC-SP 10 Near White Blast. The coating system installed consisted of the following:

• Prime coat: Tnemec Series 20

• Intermediate coat: Tnemec Series 20

• Finish coat: Tnemec Series 20

The wetted interior coating system is generally in good condition with several locations of barnacle spot corrosion on shell plate weld seams. Minor rust bleed was observed along the top of the shell plates. The interior coating thickness was measured during this inspection and determined to have an average DFT of 18.5 mils on the shell plates and 15.75 mils on the floor plates. There was evidence of old pitting in the shell wall; however, additional corrosion in these areas was abated during last rehabilitation project.

D. Exterior Accessories

The tank is equipped with a shell ladder. The ladder has a ladder shield and cable safety climb system. One (1) antenna cable is mounted adjacent to the ladder on magnetic unistrut supports and one (1) antenna cable is mounted on supports attached to the shell ladder (however, the cable has come free from its supports). The roof hatch is located to the left of the shell ladder within an area enclosed with handrail. The ladder appears to be structurally sound. The roof ladder is anchored to the handrail and appears to be structurally sound.

Highway 92 Tank – November, 2020 4

The roof hatch is a 30”x24” rectangular opening. The hatch is hinged, has a 4-inch curb and is lockable. The tank vent and two (2) antennas are located adjacent to each other in the center of the roof. The vent is 30-inches in diameter and is equipped with insect screening. One (1) additional roof hatch is located on the north side of the roof; however, it is not accessible from the roof ladder.

The tank shell is equipped with two, 24-inch diameter manways. The manways are located approximately 180 degrees apart. Both manways are flanged and have an external rotating arm to facilitate handling. All the manway bolts have corroded and should be replaced during the next inspection or rehabilitation project with stainless steel bolts.

E. Interior accessories

The tank is equipped with a 12-inch diameter inlet/outlet pipe which penetrates the tank through the floor plates. The pipe is equipped with an approximate 24-inch silt stop which is removable. The inlet/outlet pipe is equipped with a flared end fitting. The drain is a

12-inch pipe which penetrates the floor plates. A 12-inch overflow extends along the shell wall and is located adjacent to the inlet/outlet and drain pipes.

The tank is equipped with an interior ladder and float level indicator. The ladder appears to be structurally sound and the indicator is operable.

F. Site

The tank site was clean and well maintained. There is vegetation along the fence and trees inside the fenced area located on the west side of the property. A gravel access road and double leaf fence gate provide access to the site. The site is enclosed by a fence which is topped with three strands of barbed wire for security.

The tank drain and overflow discharge to a drainage ditch inside the fenced area.

The drain/overflow pipeline is equipped with a screen and flap valve; however the screen appears to be broken.

The site has an altitude valve vault, pressure reducing valve vault, and booster pump station. During the isolation and draining of the tank for the most recent inspection (2020), it was determined there are one (1) or more valves leaking which allow water from the distribution system to continue to enter the tank. While it was not possible to quantify the rate at which water was entering the tank, the water level stabilized at approximately two (2) to three (3) inches.

Highway 92 Tank – November, 2020 5

IV. Maintenance Priority

Based on observations described herein, and specifically based on the overall condition of the interior of the tank, the Highway 92 Tank has been assigned a low ranking on the maintenance priority list.

V. Recommendations

Rehabilitation recommendations include:

A. Exterior Surfaces

• None

B. Interior Surfaces

• Within the next five years, minor spot repairs to corrosion on interior weld seams when a contractor is mobilized on another tank rehabilitation project

C. Accessories/Site

• Remove vegetation along fence and repair damaged areas.

• Replace manway bolts with stainless steel bolts.

• Replace sealant in cracks on tank foundation

• Evaluate site piping and valves to determine a plan for replacement of broken appurtenances and simplification of operation

VI. Historical Improvements, Repairs and Inspections

Item Date

Year Constructed 1985

Rehabilitated (Interior and Exterior) 2004

Visual Inspection 2014

Washout, cleaning and inspection 2014

Rehabilitated (Interior and Exterior) 2016

Washout, cleaning and inspection 2020

Highway 92 Tank – November, 2020 6

Figure 1 – Shell Manway

Figure 2 – Ringwall, Grout Bed, and Anchor Bolts

Highway 92 Tank – November, 2020 7

Figure 3 – Exterior Shell Ladder and Antenna Cables

Figure 4 – Crack in Foundation and Sealant Failure

Highway 92 Tank – November, 2020 8

Figure 5 – Roof Hatch, Handrail and Roof Ladder

Figure 6 – Roof Vent and Antennas

Highway 92 Tank – November, 2020 9

Figure 7 – Roof Vent and Screen

Figure 8 – Roof Hatch, Handrail, Antenna Cabling and Float Cable Penetration

Highway 92 Tank – November, 2020 10

Figure 9 – Alligator Cracking Adjacent to Hatch

Figure 10 – Inlet/Outlet, Overflow, and Drain Pipes

Highway 92 Tank – November, 2020 11

Figure 11 – Interior Shell, Floor Plates, Ladder and Float

Figure 12 – Shell Manway

Highway 92 Tank – November, 2020 12

Figure 13 – Corrosion at Shell Plate Weld Seams

Figure 14 – Corrosion at Shell Plate Weld Seams

Highway 92 Tank – November, 2020 13

Figure 15 – Floor Plates

Figure 16 – Floor Plates

Highway 92 Tank – November, 2020 14

Figure 17 – Rust Bleed at Top of Shell Plates

Figure 18 – Rust Bleed at Top of Shell Plates

Highway 92 Tank – November, 2020 15

Figure 19: Site Entrance Gate and Access Road

Figure 20: Site Vegetation and Pump Station

Highway 92 Tank – November, 2020 16

Figure 21: Site

Figure 22: Overflow and Drain Pipe Discharge

APPENDIX A

REMOVED

APPENDIX B

Field Inspection Report

TANK INSPECTION FIELD REPORT

GROUND STORAGE RESERVOIR

Water System: DDCWSA

Tank Name: Hwy. 92

Press. System: 1270

Type: Reservoir

Datum: 1272.00

Krebs Job No: 20063

Date: 11/17/2020

Weather: Sunny, 55

Address: Hwy 92

NAMEPLATE INFORMATION

Contractor Brown Steel Diameter 53'-4"

Serial Number 2245-85 Ht. to Bottom NA

Capacity 2,000,000 Ht. to Overflow 120'-0"

Erected (Date) 1985 Construction Welded Steel

SHELL, EXTERIOR

Shell General Condition: Excellent; Anchor bolts w/ anchor bolt chairs every 36" around base of tank

Shell Ladder

Fixed/Rotating: Fixed

Safety System: Cable

Rung Spacing: 12" Ladder Width: 16"

Shell Manway: Two - approximately 180° apart

Opening Size: 24" diameter opening

Type (Hinged/Flanged): Flanged with rotating arm; carbon steel bolts have rusted on both sides

Roof Type/General Comments: Sloped roof; supported with interior roof beams; small lip of roof plates;

landing with handrail around roof hatch

Roof Hatch

Size: 30"x24" Hinged: Yes Lockable: Yes

4" Raised Curb Opening: Yes 2" Overhang on Hatch Cover: Yes

Roof Vent -

Type: Insect Screening: Yes

Size:

Level Indicator Assembly

Type: Float Operational: Yes

Obstruction Lighting

Type: Operational:

Miscellaneous Appurtenances (Antennas, Safety Devices, Obstruction Lighting): Ladder Guard; Cellular

Meter Reading Antenna (cable mounted via magnets on shell plates); SCADA Antenna (cable mounted to ladder side rail); drain plug next to manway at bottom of shell plates (north side)

Coating Condition (Location and Millage): Excellent; minor to no chalking; excellent adhesion; Shell plate coating thickness: 10.8 - 19.8 DFT (avg. 14.63); Roof plate coating thickness: 9.9 - 23.4 DFT (avg. 16.5);

minor mildew growth on bottom shell plate adjacent to anchor bolt chairs

Shell Foundation/Sketch Plate/Grout Condition: Good; minor cracking in foundation was filled with caulk during last rehabilitation project; caulk is beginning to fail and spall off.

Miscellaneous Comments: Shell hatch bolts are rusting. Stainless Steel should be installed.

SHELL, INTERIOR

Shell General Condition: Good; no visible corrosion on floor plates; minor barnacle corrosion on weld seams of shell plates; Minor rust bleed from painter's ring.

Inlet/Outlet Piping

Size: 12"

Condition: Good

Silt Stop Drain Assembly

Height: 24" Removable: Flanged w/ flared outlet

Overflow Piping

Size: 12"

Weir/Overflow Structure: Flared outlet

Condition: Minor widespread pitting; corrosion abated during last rehab project and covered with coating system; no active corrosion

Interior Ladder

Safety System: No

Rung Spacing: 12" Ladder Width: 16"

Floor Mounting System: N/A; Welded to shell plate

Cathodic Protection

# of Anodes: Anode Condition:

Wiring Condition:

Rectifier Type: Rectifier Location:

Coating Condition (Location and Millage): Overall good condition; minor spot corrosion on shell weld seams; Shell coating thickness ranged from 8.2-63.9 DFT (18.47 Avg.); Floor coating thickness ranged from

9.4-20.6 DFT (15.75 Avg)

Metal Pitting (Location and Depth): None visible

MISCELLANEOUS SITE CONDITIONS

Overflow Piping

Size: 12"

Flap Valve: Yes (see Misc. Comments below) Discharge to: Rip-rapped ditch in tank site

Sample Tap: Valve vault

Fencing

Type: Metal - Chain Link Height: 5'-0" Security Wire: 3-strand barbed wired

Gate Type: Double Leaf

Site Grading/Drainage: Adequate; minor ponding on northeast side of tank

Access Road Condition: Access road for tank site through strip mall parking lot; gravel access road after leaving parking lot

Miscellaneous Site Comments: Valve vault located in northeast corner of tank site w/altitude valve. Two valve vaults located in western corner of tank site, one with 16" PRV, one with 8" PRV. Pump station with electric and diesel pumps; Screening is also installed prior to flap valve - however, it is broken in several locaitons

COATING SAMPLES

Location of Samples Taken: None Taken - Information from last rehabilitation project available

Interior -

Exterior -

APPENDIX C

Site Plan