Administrative Rules of Montana
Department 17 - ENVIRONMENTAL QUALITY
Chapter 17.56 - UNDERGROUND STORAGE TANKS PETROLEUM AND CHEMICAL SUBSTANCES
Subchapter 17.56.3 - General Operating Requirements
Rule 17.56.302 - OPERATION AND MAINTENANCE OF CORROSION PROTECTION
Universal Citation: MT Admin Rules 17.56.302
Current through Register Vol. 6, March 22, 2024
(1) All owners and operators of metal UST systems with corrosion protection shall comply with the following requirements to ensure that releases due to corrosion are prevented until the UST system is permanently closed or undergoes a change-in-service pursuant to ARM Title 17, chapter 56, subchapter 7:
(a) all corrosion
protection systems must be operated and maintained to continuously provide
corrosion protection to the metal components of that portion of the tank and
piping that are in contact with the ground;
(b) all UST systems equipped with cathodic
protection systems must be inspected for proper operation by a qualified
cathodic protection tester in accordance with the following requirements:
(i) all cathodic protection systems must be
tested within six months of installation and at least every three years
thereafter; and
(ii) the criteria
that are used to determine that cathodic protection is adequate as required by
this rule must be in accordance with one of the codes of practice listed in
(2);
(c) UST systems
with impressed current cathodic protection systems must also be inspected every
60 days to ensure the equipment is running properly; and
(d) for UST systems using cathodic
protection, records of the operation of the cathodic protection must be
maintained in accordance with ARM
17.56.305
to demonstrate compliance with the performance standards in this rule. These
records must provide the following:
(i) the
results of the last three inspections required in (1)(c); and
(ii) the results of testing from the last two
inspections required in (1)(b).
(2) The department adopts and incorporates by reference the version in effect on January 1, 2018, of the following standards and test methods:
(a) NACE International Test
Method TM 0101, "Measurement Techniques Related to Criteria for Cathodic
Protection of Underground Storage Tank Systems," a copy of which may be
obtained from NACE International, P.O. Box 201009, Houston, TX 77216-1009,
(281) 228-6200;
(b) NACE
International Test Method TM0497, "Measurement Techniques Related to Criteria
for Cathodic Protection on Underground or Submerged Metallic Piping Systems," a
copy of which may be obtained from NACE International, P.O. Box 201009,
Houston, TX 77216-1009, (281) 228-6200;
(c) Steel Tank Institute Recommended Practice
R051, "Cathodic Protection Testing Procedures for STI-P3® USTs," a copy of
which may be obtained from the Steel Tank Institute, 570 Oakwood Road, Lake
Zurich, IL 50047, (800) 438-8265;
(d) NACE International Standard Practice SP
0285, "External Control of Underground Storage Tank Systems by Cathodic
Protection," a copy of which may be obtained from NACE International, P.O. Box
201009, Houston, TX 77216-1009, (281) 228-6200; or
(e) NACE International Standard Practice SP
0169, "Control of External Corrosion on Underground or Submerged Metallic
Piping Systems," a copy of which may be obtained from NACE International, P.O.
Box 201009, Houston, TX 77216-1009, (281) 228-6200.
AUTH: 75-11-505, MCA; IMP: 75-11-505, MCA
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