310 CMR, § 80.29 - Requirements for Corrosion Protection
(1)
Owners and Operators shall operate and maintain corrosion protection in
accordance with
310 CMR
80.22 and 80.29.
(2) Sacrificial or galvanic anode cathodic
protection systems shall be tested by a cathodic protection tester at the
following recurring frequency and in accordance with the NACE standards at 310
CMR 80.29(3):
(a) If test results indicate a
negative voltage of at least -0.90 volts or if the system passes the 100-mV
cathodic polarization test as indicated in the NACE Standards at 310 CMR
80.29(3)(a) or (b), the system shall be tested at three-year intervals
thereafter.
(b) If test results
indicate a negative voltage of between -0.85 and -0.90 the system shall be
tested annually thereafter.
(3) Sacrificial or galvanic anode cathodic
protection systems shall be tested by a cathodic protection tester at the
recurring frequency in 310 CMR 80.29(2) and in accordance with the following
standards:
(a) NACE Standard Test Method: NACE
Standard TM0101-2012, Measurement Techniques Related to Criteria for
Cathodic Protection on Underground or Submerged Metallic Tank Systems;
or
(b) NACE Standard Test Method:
NACE Standard TM0497-2012, Measurement Techniques Related to Criteria
for Cathodic Protection on Underground or Submerged Metallic Piping
Systems.
(4)
Impressed current cathodic protection systems shall be tested every 12 months
by a cathodic protection tester to determine whether the UST system is
protected against corrosion.
(a) In addition
to the annual testing, impressed current systems shall be inspected every 60
days by the Owner or Operator in accordance with the manufacturer's
specifications or the NACE publications listed at 310 CMR 80.29(3)(a) or (b) to
ensure the equipment is operating as designed.
(b) Acceptable system operating voltage and
amperage ranges as determined by the corrosion expert shall be affixed to each
rectifier.
1. System voltage and amperage
readings shall be recorded every 60 days.
2. If the system voltage and amperage
readings are outside the range determined to be acceptable by the cathodic
protection tester, it is considered a failed test and the Owner or Operator
shall comply with 310 CMR 80.29(5).
(c) Systems installed without voltage and/or
amperage meters shall be retrofitted with meters upon the first annual test of
the system after January 2, 2015.
(5) The Owner or Operator shall determine the
cause of the failed cathodic protection test by retaining a corrosion expert
within ten business days of obtaining knowledge of the failed test. If within
ten business days of the failed test, the cathodic protection tester can make
repairs, re-test and the result is a passing test, the Owner or Operator is not
required to retain a corrosion expert.
(a) If
necessary, the Owner or Operator shall repair or replace the cathodic
protection system within 120 days of the date of the failed test.
(b) The Owner or Operator shall document the
results of the corrosion expert's determination including, but not limited to,
the date of the investigation and the results.
(c) If repairs to the cathodic protection
system are not completed within 120 days of the date of the failed test, the
Owner or Operator shall either take the UST system temporarily out-of-service
in accordance
310
CMR 80.42, or remove or permanently close
in-place the UST system in accordance with
310 CMR
80.43.
(6) All cathodic protection systems shall be
tested by a cathodic protection tester for proper operation within 60 days
following a repair to the cathodic protection system or an excavation at the
UST system.
Notes
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