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TITLE 30 - ENVIRONMENTAL QUALITY
PART 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY
CHAPTER 222 - SUBSURFACE AREA DRIP DISPERSAL SYSTEMS
SUBCHAPTER C - SITING REQUIREMENTS AND EFFLUENT LIMITATIONS
SECTION/RULE §222.73 - Soil Evaluation
Chapter Review Date 08/01/2024

(a) The applicant shall conduct and submit, with the application, a soils evaluation to identify the soils associated with the proposed site. At least one profile hole per soil type must be included in the evaluation. The applicant shall use soil borings, where appropriate, for enhancement of the profile hole determinations. The profile holes used in the site evaluation must be no more than five feet deep, or to the first continuous lateral lithic contact. The evaluation must include the following information:(1) total depth of the profile hole;(2) primary rooting depth;(3) secondary rooting depth;(4) horizon descriptions which shall include:(A) depth of the horizon;(B) soil texture;(C) soil structure;(D) soil color;(E) mottling; and(F) percent coarse fragments;(5) boundary descriptions (soil horizons);(6) restrictive horizons;(7) potential water bearing zones; and(8) active water bearing zones.(b) The soil evaluation shall be performed by a licensed professional engineer or licensed professional geoscientist.

Source Note: The provisions of this §222.73 adopted to be effective July 5, 2006, 31 TexReg 5308; amended to be effective January 9, 2020, 45 TexReg 363.

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