WATER QUALITY TRANSITION ZONE.
Austin City Code § 30-5-452
in effect§ 30-5-452 - WATER QUALITY TRANSITION ZONE.
(A) Development is prohibited in a water quality transition zone that lies over the South Edwards Aquifer recharge zone, except for:
(1) development described in Article 7, Division 1 (Critical Water Quality Zone Restrictions); and
(2) minor drainage facilities or water quality controls that comply with Section 30-5-364 (Floodplain Modification) and the floodplain modification criteria in the Environmental Criteria Manual.
(B) Development is prohibited in a water quality transition zone that lies outside the South Edwards Aquifer recharge zone, except for:
(1) development described in Article 7, Division 1 (Critical Water Quality Zone Restrictions);
(2) streets;
(3) minor drainage facilities or water quality controls that comply with Section 30-5-364 (Floodplain Modification) and the floodplain modification guidelines of the Environmental Criteria Manual; and;
(4) duplex or single-family residential development with a minimum lot size of two acres and a density of not more than one unit for each three acres, excluding acreage in the 100-year flood plain.
(C) A lot that lies within a critical water quality zone must also include at least two acres in a water quality transition zone or uplands zone.
Source: City Code Section 25-8-453; Ord. 031211-11; Ord. 031211-42; Ord. 20131017-046.
Source: City of Austin, City Code and City Charter (Municode Library, library.municode.com)URL: https://library.municode.com/tx/austin/codes/code_of_ordinances?nodeId=TIT30AUTRCOSURE_CH30-5EN_SUBCHAPTER_AWAQU_ART11WASURUWARE_S30-5-452WAQUTRZOFetched: 10/27/2026