Water Tanks ROV Inspections.pdf

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U.S. UNDERWATER SERVICES, LLC 123 Sentry Drive Mansfield, TX 76063 PHONE (800) 860-2178 FAX: (817) 447-0021

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Certification of Annual Inspection

For Arsenal Water Systems

Location: White Hall, AR

October 2017

This form certifies the inspections were completed on the above date for the facilities listed below:

[4] 200,000 Gallon Elevated

U.S. Underwater Services, LLC certifies the work was completed in accordance with the American Water Works Association's [AWWA] current standards [ANSI/AWWA c652-92] regarding disinfection procedures when conducting underwater activities in potable water storage facilities. All equipment used was for potable water use only. As a certified member of the Association of Diving Contractors International [ADCI] we.are compliant with ADC/ Standards for Commercial Diving and Underwater Operations. All work was performed by NDT certified commercial divers meeting all AWWA requirements and OSHA 29 CFR specifications. A minimum of a (3) man dive team was used as required by OSHA regulations for all DIVER inspections.

Glenna Stanfield Reports Analyst U.S. Underwater Services, LLC

123 Sentry Drive• Mansfield, TX 76063 • 817-447-7321 • 800-860-2178 www.usunderwaterservices.com

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ROV INSPECTION

Inspection #: 1 Client: Arsenal Water System

Description: 200,000 Gallon Elevated - Tank C H: 120' D: 50' - Metal

Location address of tank(s): White Hall, AR Yr. of Previous lnsp.: Unknown

EXTERNAL

O.K. Issue NA Description

✓ Foundation: Concrete pads

✓ Protective Coating: Painted with light corrosion

✓ Roof Access Ladder: Has locking door with slider/cage fall protection

✓ Manway Access Hatch:

✓ Overflow Pipe: Extends to ground level but no flapper but has screen

✓ Water Level Indicator: Manual-visual

✓ ✓ Roof Plates: Corrosion/thinning paint; replace bulbs to the aircraft warning lights

✓ Roof Air Vent(s): 76" mushroom with screen in good condition

✓ Cathodic Protection Anode Plates:

✓ Water Access Hatch: 30" steel hatch; Needs keyed lock and 'confined space entry' placard

INTERNAL

O.K. Issue NA Description

✓ Water Quality: Clarity good; no odor oil or insects noted

✓ Protective Coating: Light corrosion

✓ Water Access Ladder: Light corrosion needs slider fall protection

✓ Floor Plates: 100% sediment coverage

✓ Sediment Level(s): 2-6" of sandy silt; Cleaning recommended

RECOMMENDATIONS

Recommend new bulbs be installed on the aircraft warning lights

Recommend keyed lock be installed on the water access hatch

Recommend a 'confined space entry' placard be installed on the water access hatch

Recommend slider fall protection be installed on the water access ladder

Recommend 2-6 inches of sandy silt sediment be cleaned from the floor plates

I Name of Inspector: C. Nix Date: 10/26/2017

U.S. Underwater Services, LLC ROV Inspection

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Arsenal Water System 200,000 Gallon Elevated

Photo #1

Photo #2

Reference Photo

Roof Ventilation Structure And External Roof Plates

October 2017

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Arsenal Water System 200,000 Gallon Elevated

Photo #3 Water Access Hatch (Needs 'confined space entry' placard)

Photo #4 Water Access Hatch and Ladder

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Arsenal Water System 200,000 Gallon Elevated October 2017

Photo #5 Water Access Ladder (Needs slider fall protection)

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ROV INSPECTION

Inspection#: 2 Client: Arsenal Water System Description: 200,000 Gallon Elevated - Tank B H: 120' D: SO' - Metal Location address of tank(s): White Hall, AR Yr. of Previous lnsp.: Unknown

EXTERNAL

O.K. Issue NA Description

✓ Foundation: Concrete pads - light cracking

✓ Protective Coating: Light corrosion and thinning paint

✓ Roof Access Ladder: Has locking door with slider/cage fall protection

✓ Manway Access Hatch:

✓ Overflow Pipe: At ground level but no flapper, needs screen replaced

✓ Water Level Indicator: Electrical-digital and Manual-visual (guide cables tangled - remove and replace)

✓ ✓ Roof Plates: Good; replace bulbs to the aircraft warning lights

✓ Roof Air Vent(s): 58 ¼" mushroom with screen in good condition

✓ Cathodic Protection Anode Plates:

✓ Water Access Hatch: 30" steel hatch; Needs keyed lock and 'confined space entry' placard

INTERNAL

O.K. Issue NA Description

✓ Water Quality: Clarity good; no odor oil or insects noted

✓ f>rotective Coating: Light corrosion

✓ Water Access Ladder: Light corrosion needs slider fall protection

✓ Floor Plates: 100% sediment coverage

✓ Sediment Level(s): 2-6" of sandy silt; Cleaning recommended

RECOMMENDATIONS

Recommend new fine mesh screen to the overflow pipe

Recommend new guide cables be installed on the water level float

Recommend new bulbs be installed on the aircraft warning lights

Recommend keyed lock be installed on the water access hatch

Recommend a 'confined space entry' placard be installed on the water access hatch

Recommend slider fall protection be installed on the water access ladder

Recommend 2-6 inches of sandy silt sediment be cleaned from the floor plates

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Arsenal Water System 200,000 Gallon Elevated

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Reference Photo

Roof Ventilation Structure And External Roof Plates

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ROV INSPECTION

Inspection #: 3 Client: Arsenal Water System

Description: 200,000 Gallon Elevated - Tank A H: 120' D: SO' - Metal

Location address of tank(s): White Hall, AR Yr. of Previous lnsp.: Unknown

EXTERNAL

O.K. Issue NA Description

✓ Foundation: Concrete pads - light cracking

✓ Protective Coating: Light corrosion and thinning paint

✓ Roof Access Ladder: Has locking door with slider/cage fall protection

✓ Manway Access Hatch:

✓ Overflow Pipe: At ground level but no flapper, needs screen replaced

✓ Water Level Indicator: Manual-visual

✓ Roof Plates: Light corrosion with thinning paint

✓ Roof Air Vent(s): 38" mushroom with screen in good condition

✓ Cathodic Protection Anode Plates:

✓ Water Access Hatch: 30" steel hatch; Needs keyed lock and 'confined space entry' placard

INTERNAL

O.K. Issue NA Description

✓ Water Quality: Clarity good; no odor oil or insects noted

✓ Protective Coating: Light corrosion

✓ Water Access Ladder: Light corrosion needs slider fall protection

✓ Floor Plates: 100% sediment coverage

✓ Sediment Level(s): 2-6" of sandy silt; Cleaning recommended

RECOMMENDATIONS

Recommend new fine mesh screen to the overflow pipe

Recommend keyed lock be installed on the water access hatch

Recommend a 'confined space entry' placard be installed on the water access hatch

Recommend slider fall protection be installed on the water access ladder

Recommend 2-6 inches of sandy silt sediment be cleaned from the floor plates

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Arsenal Water System 200,000 Gallon Elevated

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Photo #2

Reference Photo i.

Roof Ventilation Structure And External Roof Plates

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Arsenal Water System 200,000 Gallon Elevated October 2017

Photo #3 Water Access Hatch (Needs 'confined space entry' placard)

Photo #4 Water Access Ladder (Needs slider fall protection)

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ROV INSPECTION

Inspection #: 4

Description: 200,000 Gallon Elevated - #1

Client: Arsenal Water System

H: 120' D: 50' - Metal

Location address of tank(s): White Hall, AR Yr. of Previous lnsp.: Unknown

EXTERNAL

O.K. Issue NA Description

✓ Foundation: Concrete pads

✓ Protective Coating: Paint

✓ Roof Access Ladder: Has locking door with slider/cage fall protection;

replace bulb on safety light

✓ Manway Access Hatch: 11 ½"x 17" needs 'confined space entry' placard

✓ Overflow Pipe: At roof transition

✓ Water Level Indicator: Electronic-digital

✓ Roof Plates: Light corrosion with thinning paint

✓ Roof Air Vent(s): 58 ½" mushroom with screen in good condition

✓ Cathodic Protection Anode Plates:

✓ Water Access Hatch: 27" steel hatch; Needs keyed lock and 'confined space entry' placard

INTERNAL

O.K. Issue NA Description

✓ Water Quality: Clarity good; no odor oil or insects noted

✓ Protective Co~ting: Light corrosion

✓ Water Access Ladder: Heavy corrosion on top 2 rungs; need new rungs and slider fall protection

✓ Floor Plates: 100% sediment coverage; debris from water level indicator

✓ Sediment Level(s): 2-6" of sandy silt; Cleaning recommended

RECOMMENDATIONS

Recommend safety light bulb be replaced on the roof access ladder

Recommend keyed lock be installed on the water access hatch

Recommend a 'confined space entry' placard be installed on the water access hatch

Recommend top [2] rungs on the water access ladder be replaced

Recommend slider fall protection be installed on the water access ladder

Recommend 2-6 inches of sandy silt sediment and debris be cleaned from the floor plates j Name of Inspector: C. Nix Date: 10/26/2017

U.S. Underwat er Services, LLC ROV Inspection

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Arsenal Water System 200,000 Gallon Elevated October 2017

Photo #1 Reference Photo

Photo #2 Manway Access Hatch (Needs 'confined space entry' placard)

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Arsenal Water System 200,000 Gallon Elevated

Photo #3 Roof Ventilation Structure

Photo #4 Water Access Hatch (Needs 'confined space entry' placard)

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Arsenal Water System 200,000 Gallon Elevated October 2017

Photo #5 Water Access Ladder (Needs top [2] rungs replaced &slider fall protection)

To: Jonathan Coldiron Arsenal Water Systems 10020 Kabrich Circle White Hall, AR 71602

P: 870-540-3351

Report Proposal January 8, 2018

P.O. Box 2168

Mansfield, TX 76063 1 800.860.2178 P 817.447.7321 F 817.447.0021

E: Jonathan.coldiron.civ@mail.mil jgeorge@usunderwaterservices.com sales@usunderwaterservices.com

U.S. Underwater Project Representative

Jaisy George The below recommendations are based on the results of the inspection and to comply with OSHA and/or AWWA standards. Please check the box beside the service you would like for U.S. Underwater Services to complete, sign and return. Thank you.

D Label manway access hatch as a "confined space entry'' area (OSHA Required) D Installation of a keyed lock to water access hatch D Label water access hatch as a "confined space entry'' area (OSHA Required) D Installation of slider fall protection to the water access ladder D Sediment removal of up to 6 inches (Inspection showed 4-6 inches of sediment AWWA Required)

D Installation of a new 30-inch water access hatch D Installation of a keyed lock to existing water access hatch D Label existing water access hatch as a "confined space entry'' area (OSHA Required) D Installation of slider fall protection to the water access ladder D Sediment removal of up to 6 inches (Inspection showed 4-6 inches of sediment AWWA Required)

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• ROV INSPECTION

Inspection #: 1 Client: Arsenal Water Systems

Description: 200,000 Gallon Elevated -Tank #2 H: 120' D: 50' - Metal

Location address of tank(s): Pine Bluff, AR Yr. of Previous lnsp.: Unknown

EXTERNAL

O.K. Issue NA Description

✓ Foundation: Concrete pads

✓ Protective Coating: SSPC Rust Rating: 9;

✓ Roof Access Ladder: Has locking door with slider fall protection

✓ Manway Access Hatch: [lJ 16"x12"; Needs 'confined space entry' placard

✓ Overflow Pipe: Extends to ground level, no flapper but has screen

✓ Water Level Indicator: Manual-visual not in service per client's choice

✓ Roof Plates: Good

✓ Roof Air Vent(s): 37" mushroom with screen in good condition

✓ Cathodic Protection Anode Plates:

✓ Water Access Hatch: 27"x19" steel hatch; Needs keyed lock and

'confined space entry' placard

INTERNAL

O.K. Issue NA Description

✓ Water Quality: Clarity good; no odor oil or insects noted

✓ Protective Coating: SSPC Rust Rating: Sidewalls 7; roof plates Ge

✓ Water Access Ladder: Light corrosion needs slider fall protection

✓ Floor Plates: 100% sediment coverage

✓ Sediment Level(s): 4" -6" flock; Cleaning recommended

RECOMMENDATIONS

Recommend a 'confined space entry' placard be installed on the manway access hatch

Recommend keyed lock be installed on the water access hatch

Recommend a 'confined space entry' placard be installed on the water access hatch

Recommend slider fall protection be installed on the water access ladder

Recommend 4-6 inches of sediment be cleaned from the floor plates

I Name of Inspector: R. Parker Date: 12/5/2017

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Arsenal Water System

Photo #1 Reference Photo

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200,000 Gallon Elevated December 2017

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Arsenal Water System 200,000 Gallon Elevated December 2017

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Roof Ventilation Structure and External Roof Plates

Water Access Hatch (Needs 'confined space entry' placard & keyed lock)

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Arsenal Water System 200,000 Gallon Elevated December 2017

Photo #5 Water Access Hatch and Ladder

Photo #6 Water Access Ladder (Needs slider fall protection)

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Inspection #:

Description:

ROV INSPECTION

200,000 Gallon Elevated - Tank #1

Client: Arsenal Water Systems

H: 120' D: 50' - Metal

Location address of tank(s): Pine Bluff, AR Yr. of Previous lnsp.: Unknown

EXTERNAL

O.K. Issue NA Description

✓ Foundation: Concrete pads; small tree growing into one pad;

Recommend tree be removed

✓ Protective Coating: SSPC Rust Rating: Ge

✓ Roof Access Ladder: Has locking door with cage fall protection

✓ Manway Access Hatch: [1] 16"x12"; has 'confined space entry' placard

✓ Overflow Pipe: Extends to ground level, no flapper but has screen

✓ Water Level Indicator: Manual-visual not in service per client's choice

✓ Roof Plates: Good

✓ Roof Air Vent(s): 38" mushroom with screen in good condition

✓ Cathodic Protection Anode Plates:

✓ Water Access Hatch: 27"x19" steel hatch; heavy corrosion with delamination around hatch curb; Replace. Existing hatch needs keyed lock and 'confined space entry' placard

INTERNAL

O.K. Issue NA Description

✓ Water Quality: Clarity good; no odor, oil or insects noted

✓ Protective Coating: SSPC Rust Rating: Sidewalls Sb; roof plates 9

✓ Water Access Ladder: Light corrosion needs slider fall protection

✓ Floor Plates: 100% sediment coverage

✓ Sediment Level(s): 4" -6" flock; Cleaning recommended

RECOMMENDATIONS

Recommend a new 30-inch water access hatch be installed

Recommend keyed lock be installed on the existing water access hatch

Recommend a 'confined space entry' placard be installed on the existing water access hatch

Recommend slider fall protection be installed on the water access ladder

Recommend 4-6 inches of sediment be cleaned from the floor plates

I Name of Inspector: R. Parker Date: 12/5/2017

U.S. Underwat er Services, LLC ROV Inspection

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Arsenal Water System

Photo #1 Reference Photo

200,000 Gallon Elevated December 2017

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Arsenal Water System 200,000 Gallon Elevated December 2017

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Roof Ventilation Structure and External Roof Plates

Water Access Hatch (Needs 'confined space entry' placard & keyed lock)