310 CMR, § 80.29

Current through Register 1538, January 3, 2025

Section 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.

(c) If test results indicate a negative voltage of less than -0.85 or if the system fails the 100-mV cathodic polarization test as indicated in the NACE Standard at 310 CMR 80.29(3)(a) or (b), the system shall be deemed inadequate and the Owner and Operator shall comply with 310 CMR 80.29(5).

(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.

(7) The Owner or Operator shall keep the following records in accordance with 310 CMR 80.36:

(a) Documentation of corrosion experts determination in 310 CMR 80.29(5)(b);