Bid Package 08 North Well Field - Garney Construction

a. The maximum allowable deflection of pipe measured as the reduction in vertical
inside diameter is 5.0 percent unless specified otherwise.
b. Conduct test after the final backfill has been in place a minimum of 30 days.
c. Thoroughly clear the lines before testing.
2. Perform test by pulling a properly sized mandrel through the line. Measure deflection
from the inside the pipe.
3. Excavate and repair pipe with deflections in excess of the maximum allowable
deflection.
G. MANHOLE TESTING
Test manholes for leakage separately and independently of the wastewater lines by
hydrostatic exfiltration testing, vacuum testing or other approved methods acceptable to
TCEQ. Test manholes after installation with all connections (existing and/or proposed) in
place. Plug lift holes with an approved non‐shrink grout prior to testing. Install dropconnections
and gas sealing connections prior to testing.
1. Vacuum Test – Temporarily plug lines entering the manhole with the plugs braced to
prevent them from being drawn into the manhole. Install plugs in the lines beyond
drop‐connections, gas sealing connections, etc. Place the test head inside the frame at
the top of the manhole and inflate in accordance with the manufacturer’s
recommendations. Draw a vacuum of 10 inches of mercury, then turn off the vacuum
pump. Read the level of vacuum after the required test time with the valve closed. The
manhole will pass the test if the drop in the level is less than 1 inch of mercury (final
vacuum greater than 9 inches of mercury). The required test time for 48 inch, 60 inch,
and 72 inch manholes with depths up to 30 feet is two minutes. Test times for
manholes of greater size and depths will be determined by the Engineer.
2. Manhole Repairs – Manholes will be accepted in accordance with the criteria above.
Repair any manhole which fails the initial test with non‐shrink grout or other suitable
material as determine for the material from which the manhole is constructed. Retest
the manhole as described above until a successful test is achieved. Remove all
temporary plugs and grout after a successful test.
H. TESTS FOR PLUMBING DRAINAGE AND VENT SYSTEMS
1. Plug openings as necessary.
2. Test drainage and venting systems by filling piping with water to the level of the highest
vent stack for 30 minutes.
3. Make the examination for leakage at joints and connections.
4. Test fail if there is any drop in water level.
3.06 ELECTRICAL TESTING
A. Qualifications
1. Perform testing using qualified personnel with a minimum of five years' experience
installing and testing electrical equipment and machinery, unless otherwise specified.
2. Use testing firms or individuals to perform tests that have not provided services or
materials used on the Project or are otherwise related or affiliated with other CMARs or
Suppliers for this project unless permitted by the CMAR/Owner.
B. Report Forms
Quality Requirements – Bid Package #8 01 40 00‐12
Colorado River Municipal Water District
Ward County Water Supply Expansion Project – North Well Field
5/28/2012