SECTION 3.01 – OWNERSHIP AND MAINTENANCE
Ownership and maintenance of the Stormwater Quality Features designed and built pursuant to Part B, Section 2.02 of these Regulations shall be according to the following:
The Stormwater Quality Feature shall remain the responsibility of the property owner unless there is a transfer pursuant to Part B, Section 4.04.
As required by the NPDES permit, the City of Houston prepared the Proposed Comprehensive Master Plan for New Development and Significant Redevelopment in the City of Houston (the “Master Plan” for the City of Houston), and Harris County/Harris County Flood Control prepared the Proposed Comprehensive Master Plan for New Development and Significant Redevelopment in Harris County (Unincorporated Areas), (the “Master Plan” for Harris County). The master plans were the basis for the City of Houston ordinance and Harris County regulations. The ordinance and regulations require controls to reduce pollutants in discharges to the municipal separate storm sewer system (MS4) after the construction of a development is completed.
Under the ordinance and regulations, proposed new development and significant redevelopment of 5 or more acres will be required to submit Storm Water Quality Management Plans (SWQMPs) that propose structural, non-structural or vegetative controls to reduce pollutants in storm water runoff. The overall goal of the ordinance and regulations and the goal of SWQMPs is to reduce the discharge of pollutants into the municipal separate storm sewer system to the Maximum Extent Practicable (MEP). This manual is intended to provide guidance on the preparation of SWQMPs.
This section describes general planning and implementation procedures for SWQMPs for residential development, commercial development, light industrial development, public facility development, and significant redevelopment of five or more acres. These are general guidelines, and specific site conditions may require additional or modified measures or approaches. The SWQMP requirements discussed here address pollution arising from post-construction activities. The intended function of an SWQMP is to improve storm water quality from the normal daily operating activities of a site for the life of the development. The preparation of Storm Water Pollution Prevention Plans (SWPPPs) for storm water pollution prevention during construction is addressed in a separate guidance document, the Storm Water Management Handbook for Construction Activities. Other types of development/redevelopment projects for facilities that are regulated by EPA’s industrial storm water permitting program should provide storm water quality control measures as required by the EPA.
The SWQMP functions as a mitigation plan for the potential impacts of pollution from storm water discharge from the normal operating activities of a site for the life of the development. The SWQMP should contain a site description, planned controls, and procedures for maintenance and inspection. The contents of an SWQMP are described below.
3.1.1 Site Description
A. Non-Structural Controls
Describe non-structural best management practices (BMPs) and how they will be used at the site.
B. Structural Controls
Structural BMPs should be shown on construction drawings. Supporting data (e.g., specifications, calculations, etc.) should be provided upon request.
Describe procedures and qualified personnel to assure the timely maintenance of control measures.
Describe inspection reporting and procedures.
Harris County Stormwater Quality Management
Storm Water Quality (SWQ) Permit
Hourston Stormwater Quality Requirements
Houston Storm Water Quality Management Guidance Manual
Houston Storm Water Management Handbook fro Construction Activities