CONSTRUCTION STANDARD SPECIFICATION

SECTION 02959

[TELEVISION INSPECTION]{.underline}

Page

PART 1 - GENERAL

1.01 Summary [2](#summary)

1.02 Submittals [2](#__RefHeading___Toc26607841)

PART 2 - PRODUCTS

2.01 Materials And Equipment [3](#materials-and-equipment)

PART 3 - EXECUTION

3.01 Sewer Flow Requirements [4](#sewer-flow-requirements)

3.02 Sequence Of Work [4](#sequence-of-work)

3.03 Inspection Requirements [5](#inspection-requirements)

3.04 Field Quality Control [5](#field-quality-control)

CONSTRUCTION STANDARD SPECIFICATION

SECTION 02959

[TELEVISION INSPECTION]{.underline}

# PART 1 - GENERAL

## 1.01 SUMMARY

A. Section includes internal television (TV) inspection of sewers.

1\. Inspect sewer interior using color closed-circuit television (CCTV)
camera, and document inspection on DVD with audio location and date
information, DVD title information, and continuous tape counter. Provide
hard copy of inspection logs.

2\. Additional TV inspections may be required at other stages of
operation, to meet requirements specified in Field Quality Control
article.

B. Related Sections: Refer to the following sections for related work:

1\. Section 02955, "Sewer Flow Control".

2\. Section 02956, "Sewer Cleaning".

[]{#__RefHeading___Toc26607841 .anchor}1.02 SUBMITTALS

A. Quality Assurance: Submit one example DVD of previous sewer
inspection work that shows operational and structural defects in sewers,
complete with audio commentary and inspection log(s). Prior to submittal
finalize the DVD to prevent rerecording.

1\. DVD and inspection logs will be reviewed to determine if quality of
CCTV image is acceptable, and if defects were properly identified and
documented according to Sandia National Laboratories (SNL) requirements.

2\. Modify equipment and/or inspection procedures to achieve report
material of acceptable quality.

3\. Do not commence Work prior to approval of report material quality by
Sandia Delegated Representative (SDR). Upon acceptance, report material
shall serve as standard for remaining Work.

B. Inspection Logs: Unless otherwise indicated, submit inspection logs
that include the following as a minimum:

1.  Project title

2.  Name of Sandia National Laboratories

3.  Time of day

4.  Zone atlas map number

5.  Manhole to manhole pipe section

6.  Pipe segment length

7.  Pipe material

8.  Line size

9.  Compass direction of viewing

10. Direction of camera's travel

11. Pipe depth

12. Operator name

13. Tape counter reading at beginning and end of each manhole to manhole
    pipe segment.

C. DVDs: Submit completed DVDs after cleaning and rehabilitation. Prior
to submittal, finalize the DVD to prevent re-recording. DVDs must be in
a readable with standard viewing software such as Windows Media Player,
and if a specific program is needed please submit for preapproval.

D. Maintain copy of all inspection documentation (DVDs, databases, and
logs) for duration of Work and warranty period.

# PART 2 - PRODUCTS

## 2.01 MATERIALS AND EQUIPMENT

A. DVD: 120 minute minimum, high-quality color, type DVD-R, DVD-RW, or
DVD+R

> 1\. Audio portion of composite DVD shall be sufficiently free from
> electrical interference and background noise to provide complete
> intelligibility of oral report.

2\. Store in upright position with temperature range of 45 to 80 degrees
F (7 to 27 degrees C) in an appropriate CD or DVD case to prevent
scratches.

3\. Identify each disk with tape labels showing SNL's name, Contractor's
name, and each manhole-to-manhole pipe segment of sewer line represented
on DVD or provide an index or table of contents if more than one segment
is on the disk.

B. Television Inspection Camera(s): Equipped with rotating head, capable
of 90-degree rotation from horizontal and 360-degree rotation about its
centerline.

1.  Minimum Camera Resolution: 400 vertical lines and 460 horizontal
    lines.

2.  Camera Lens: Not less than 140 degree viewing angle, with automatic
    or remote focus and iris controls.

3.  Focal Distance: Adjustable through range of 6 inches (152 mm) to
    infinity.

4.  Camera(s) shall be intrinsically safe and operative in 100 percent
    humidity conditions.

5.  Lighting Intensity: Remote-controlled and adjusted to minimize
    reflective glare.

6.  Lighting and Camera Quality: Provide clear, in-focus picture of
    entire inside periphery of sewer.

C. Footage Counter: Measures distance traveled by camera in sewer,
accurate to plus or minus 2 feet (0.6 m) in 1,000 feet (305 m).

D. DVD Titling: Each segment shown on the DVD should have its own
Chapter titled with the beginning and end point of the pipe segment.

[PART 3 - EXECUTION]{.underline}

## 3.01 SEWER FLOW REQUIREMENTS

A. Do not exceed depth of flow shown in Table 1 for respective pipe
sizes as measured in manhole when performing TV inspection.

B. When depth of flow at upstream manhole of sewer line section being
worked is above maximum allowable for TV inspection, reduce flow to
level shown in Table 1, by plugging or blocking of flow, or by pumping
and bypassing of flow as specified. Comply with requirements of Section
02955, "Sewer Flow Control" to reduce flow.

TABLE 1

Maximum Depth of Flow for TV Inspection

  ----------------------------------- -----------------------------------
  Nominal Pipe Diameter               Maximum Depth of Flow

  6" - 10"                            20 percent of pipe diameter

  12" - 24"                           25 percent of pipe diameter
  ----------------------------------- -----------------------------------

## 3.02 SEQUENCE OF WORK

Perform Work in the following sequence:

A. Clean sewer lines and manholes in accordance with requirements of
Section 02956, "Sewer Cleaning".

B. Perform TV inspection to comply with requirements of this
specification.

C. Install sewer pipe lining in accordance with requirements of Section
02957, "Sewer Pipe Lining".

D. Repeat TV inspection in same direction as previous inspection, after
completed installation of sewer pipe lining.

## 3.03 INSPECTION REQUIREMENTS

A. Access: SDR shall have access to observe monitor and other operations
at all times.

B. DVD Commentary: Record the following information on audio track of
inspection DVD: narrative of location, direction of view, manhole
numbers, pipe diameter and material, date, time of inspection, and
location of laterals and other key features.

1\. DVD shall visually display this information at beginning and end of
each manhole-to-manhole pipe segment.

2\. DVD between manholes shall visually display length in feet from
starting point of given segment.

C. Sewer Identification: DVD and inspection documentation shall include
sewer line and manhole identifiers shown on Drawings provided by SDR.

D. Image Perspective: Camera image shall be down center axis of pipe
when camera is in motion. ..

1\. Provide 360-degree sweep of pipe interior at points of interest, to
more fully document existing condition of sewer.

2\. Points of interest may include, but are not limited to the
following: defects, cracks, voids, connections, encrustations, mineral
deposits, debris, sediment, and any location determined not to be clean
or part of an improper liner installation, and defects in liner that
include, but are not limited to bumps, folds, tears, and dimples.

3\. Cabling system employed to transport camera and transmit its signal
shall not obstruct camera's view.

E. Sewer Reach Length: Physically measure and record length of each
sewer reach from centerline of its terminal manholes.

F. Inspection Rate: Camera shall be pulled through sewer in either
direction, but both inspections are to be in same direction. Maximum
rate of travel shall be 30 feet (9 m) per minute when recording.

## 3.04 FIELD QUALITY CONTROL

A. SDR will review videotapes and logs to ensure compliance with
requirements listed in this specification, and Sections 02956, "Sewer
Cleaning".

B. If sewer line, in sole opinion of SDR, is not adequately clean, it
shall be recleaned and CCTV-inspected by Contractor at no additional
cost.

C. If the liner, in sole opinion of SDR, has not been properly
installed, it shall be reinstalled and CCTV-inspected by Contractor at
no additional cost.

\- END OF SECTION -