N.J. Admin. Code § 7:14B-6.2

Current through Register Vol. 56, No. 21, November 4, 2024

Section 7:14B-6.2 - Requirements for underground storage tank systems containing petroleum products and waste oil

(a) Owners and operators of regulated heating oil tank systems installed before July 15, 2018, or any other petroleum underground storage tank systems installed before April 11, 2016, shall provide release detection for tanks and piping by:

1. Monitoring tanks at least every 30 calendar days for releases using one of the methods listed in N.J.A.C. 7:14B-6.5(a) 4 through 8, except that:

i. Underground storage tank systems that meet the performance standards in N.J.A.C. 7:14B-4.1 or 4.2, and the monthly inventory control requirements in N.J.A.C. 7:14B-6.5(a) 1 or 2 may use tank tightness testing (conducted in accordance with N.J.A.C. 7:14B-6.5(a) 3) at least every five years, for up to 10 years following the tank installation date; and

ii. Tanks with capacity of 550 gallons or less and tanks with a capacity of 551 to 1,000 gallons that meet the tank diameter criteria in N.J.A.C. 7:14B-6.5(a) 2, may use weekly tank gauging conducted in accordance with N.J.A.C. 7:14B-6.5(a)2.

2. Underground piping that routinely contains regulated substances shall be monitored for releases in a manner that meets one of the following requirements:

i. Underground piping that conveys regulated substances under pressure shall:

(1) Be equipped with an automatic line leak detector conducted pursuant to 7:14B-6.6(a)1; and

(2) Have an annual line tightness test conducted in accordance with 7:14B-6.6(a)2 or have monthly monitoring conducted in accordance with 7:14B-6.6(a)3.

ii. Underground piping that conveys regulated substances under suction shall either have a line tightness test conducted at least every three years in accordance with 7:14B-6.6(a)2, or use a monthly monitoring method conduct in accordance with 7:14B-6.6(a)3. No release detection is required for suction piping that is designed and constructed to meet the following standards:

(1) The below-grade piping operates at less than atmospheric pressure;

(2) The below-grade piping is sloped so that the contents of the pipe shall drain back into the storage tank if the suction is released;

(3) Only one check valve is included in each suction line;

(4) The check valve is located directly below and as close as practical to the suction pump; and

(5) A method is provided that allows compliance with (a)2ii(1) through (4) above to be readily determined.

(b) Owners and operators of regulated heating oil tank systems that utilize separate product bearing supply and return lines installed before July 15, 2018, or any other petroleum underground storage tank systems that utilize separate product bearing supply and return lines installed before April 11, 2016, shall provide release detection for tanks and piping as follows:

1. Tanks shall be monitored at least every 30 calendar days for releases using one of the methods listed in 7:14B-6.5(a)4 through 9; or

2. Owners and operators may use tank tightness testing conducted in accordance with 7:14B-6.5(a)3 at least every three years and check for the presence of water in the tank at the time of each product delivery.

(c) Except as set forth in (d) below, owners and operators of petroleum underground storage tanks or piping shall provide release detection for tanks and piping by performing interstitial monitoring at least once every 30 calendar days according to the requirements at N.J.A.C. 7:14B-6.5(a) 7 as follows:

1. Regulated heating oil tank systems installed on or after July 15, 2018, shall comply with (c) above upon installation.

2. Underground storage tanks not subject to (c)1 above, installed on or after April 11, 2016, shall comply with (c) above upon installation.

3. Pressurized piping shall also be equipped with an automatic line leak detector pursuant to N.J.A.C. 7:14B-6.6(a)1.

(d) No release detection is required for suction piping that complies with (a)2ii(1) through (5) above.

N.J. Admin. Code § 7:14B-6.2

Amended by 50 N.J.R. 409(a), effective 1/16/2018