Kan. Admin. Regs. § 5-40-15 - Testing a principal spillway pipe installation in a dam; general procedures
The following general procedures shall apply to all static pressure tests required by K.A.R. 5-40-14 :
(a) The applicant shall conduct the test
before backfilling around and over the principal spillway pipe and after laying
the pipe on the grade line and connecting the pipe according to the approved
plans and the manufacturer's requirements.
(b) The applicant, the applicant's
representative, or the contracting officer shall make arrangements for the
chief engineer, or a person designated by the chief engineer, to be present
during the test.
(c) The applicant
shall place a watertight plug in the downstream end of the pipe. The plug shall
be sufficient to withstand a pressure of three pounds per square inch for the
duration of the test. The plug shall be equipped with an acceptable means of
draining the water out of the pipe after completion of the test.
(d) The applicant shall fill the pipe with
water up to an elevation of 10 feet above the flow line at the pipe outlet, or
up to the principal spillway inlet elevation, whichever is less, unless a
different elevation is required by the test method described in K.A.R.
5-40-16(b).
(e) The applicant
shall note the exact elevation of the water surface at the time the test
begins.
At the end of the prescribed test duration, the applicant shall measure the water surface elevation.
(f) The applicant shall use one of the test
methods described in K.A.R. 5-40-16 to determine whether the water leakage rate
is acceptable.
(g) If the leakage
rate determined by either of the methods described in K.A.R. 5-40-16 is not
acceptable, the applicant shall determine the source of the leakage and correct
the leakage. After correction, the applicant shall perform another test in
accordance with K.A.R. 5-40-15 and K.A.R. 5-40-16.
(h) If the leakage rate determined by either
of the methods described in K.A.R. 5-40-16 is acceptable, the applicant shall
drain and backfill the pipe in the manner prescribed by the approved plans and
specifications.
Notes
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