Ala. Admin. Code r. 335-6-15-.08

Current through Register Vol. 43, No. 1, October 31, 2024

Section 335-6-15-.08 - Plans And Specifications

(1)Submission of Plans. The Department may require the submission of plans, specifications, and other technical data pursuant to rule 335-6-15-.06, 335-6-15-.07, or any other requirement by the Department relating to the construction of UST systems, upgrading of UST systems, installation of release detection equipment, corrosion protection measures, or engineering design related to the implementation of a corrective action plan.

(a) Plans and specifications shall be submitted at least 30 days prior to the anticipated date of construction or installation.

(b) Where plans and specifications are not required, a notification of installation shall be submitted 30 days prior to the anticipated date of installation.

(c) Plan and specification submissions shall be in a form which is acceptable to the Department.

(d) The Department may require modification of submitted plans and specifications, where necessary, to demonstrate compliance with applicable requirements.

(2)Preparation of Plans, Specifications, and Technical Data. Plans, specifications, and technical data submitted to the Department for review shall be signed and sealed by an Alabama licensed professional engineer or an Alabama licensed professional geologist, as appropriate, in accordance with State law concerning these practices, and who is competent to perform work in these fields.

(3) Plans and specifications submitted for construction and upgrading of UST systems shall, where applicable, adequately describe:

(a) Site sketch with boundaries and structures approximately to scale.

(b) Underground storage tank excavation dimensions and location.

(c) Underground storage tank capacity, dimensions, materials of construction, and material to be stored, and whether of single or double wall construction.

(d) Type and size of backfill material.

(e) Depth of backfill to be placed under the underground storage tank.

(f) Water table data for the site, including the annual high and low water table elevations as determined from nearby water supply wells, piezometers, or other available hydrogeologic data.

(g) Supports and anchorage design if applicable.

(h) Underground piping dimensions, materials of construction, layout, location of dispensers, and slope of underground piping for suction systems.

(i) Release detection method to be used, to include:

1. Number, location and construction details for any monitoring wells, whether for groundwater monitoring, vapor monitoring or monitoring of an interstitial space.

2. Description of and manufacturer's performance specifications for any continuous monitoring equipment to be used where required by the Department.

3. For non-continuous monitoring, (other than manual sampling of groundwater monitoring wells), a description of and manufacturer's performance specifications for the type of equipment to be used where required by the Department.

4. Manufacturer specifications for any secondary barrier to be used in interstitial monitoring.

(j) Wiring and conduit associated with monitoring systems.

(k) Information regarding the cathodic protection method to be used, to include:

1. Design plans and specifications for field installed cathodic protection systems shall be submitted to the Department for approval at least 30 days prior to the anticipated date of installation and must include, at a minimum:

(i) Type of cathodic protection, galvanic or impressed current.

(ii) Test or monitoring station for cathodic protection system.

(iii) Location and weight of sacrificial anodes.

(iv) The corrosion expert responsible for the design of a field installed cathodic protection system.

(v) Calculations of the:

(I) Surface area to be protected,

(II) Current required,

(III) Number of anodes required, and

(IV) Rectifier rating.

(vi) Material list including a description of the:

(I) Rectifier,

(II) Anodes,

(III) Anode wiring,

(IV) Negative ground wires,

(V) Grounding mechanism,

(VI) Shunt box, and

(VII) Other materials to be used.

(vii) Drawing providing the location of the:

(I) Tanks,

(II) Anodes,

(III) Anode wiring,

(IV) Ground wiring,

(V) Rectifier box, and

(VI) Shunt box.

(l) Spill and overfill containment devices.

(m) For groundwater monitoring well systems, the hydraulic conductivity of the soils in which the monitoring wells will be placed.

(n) Type of secondary containment, where applicable.

(o) Whether or not the UST system will be within 300 feet of a private domestic water supply or 1000 feet of a public water supply well.

(p) Any other information that may be required by the Department.

(4)Existing Systems. When plans and specifications are submitted for existing systems, all available information should be submitted regarding the above items.

(5)Modifications or Alterations. Any proposed modification or alteration of plans, specifications, or technical data previously submitted to and reviewed by the Department which could affect the UST system's compliance with this chapter must also be forwarded to the Department for review.

Ala. Admin. Code r. 335-6-15-.08

Effective April 5, 1989. Amended: Filed July 2, 2007; effective August 6, 2007.

Amended by Alabama Administrative Monthly Volume XXXVI, Issue No. 02, November 30, 2017, eff. 12/8/2017.

Amended by Alabama Administrative Monthly Volume XL, Issue No. 05, February 28, 2022, eff. 4/14/2022.

Authors: Sonja Massey, Curt Johnson, Lee Davis, David Batchelor, Vernon H. Crockett

Statutory Authority:Code of Ala. 1975, §§ 22-36-3, 22-36-4.