HASSCORE provides complete management of Stormwater Quality (SWQ) Permits, Stormwater Pollution Prevention Permits (SWPPP), Multi-Sector General Permits (MSGP), and Municipal Separate Storm Sewer System (MS4) Permits, from start to finish. Our team handles permitting, inspections, documentation, and ongoing maintenance to ensure full compliance with TCEQ and local regulations. We simplify the process for developers, contractors, and utility districts by tracking deadlines, maintaining records, and implementing best management practices (BMPs) that protect both infrastructure and the environment.
Stormwater Quality Services
Comprehensive Stormwater Compliance & Permit Management
Stormwater Quality Permit (SWQ)
The SWQ Permit is required under the Texas Pollutant Discharge Elimination System (TPDES) and local ordinances for developments meeting the definition of new or significant redevelopment. It ensures post-construction stormwater is properly managed to protect water quality and infrastructure. At HASSCORE, we manage every stage of SWQ compliance for the City of Houston, Harris County, and surrounding Gulf Coast jurisdictions from permitting and plan preparation to annual inspections, certifications, and renewals. Our team provides everything needed to keep your site compliant, efficient.
Multi-Sector General Permit (MSGP)
The MSGP applies to industrial facilities that discharge stormwater associated with industrial activities. It regulates runoff from areas such as material storage yards, loading docks, equipment maintenance zones, and other industrial operations. HASSCORE manages every stage of MSGP compliance from Notice of Intent (NOI) filing and sector-specific monitoring plans to benchmark sampling, reporting, and annual compliance evaluations. We also provide employee training and inspection programs to help your facility maintain continuous compliance and avoid costly violations.
At HASSCORE, we take the complexity out of stormwater compliance. From construction sites to industrial facilities and long-term post-construction systems, our team provides complete management of SWPPP, MSGP, MS4, and SWQ permit programs across the City of Houston, Harris County, and the greater Gulf Coast region. We assure property owners, managers, developers, and public entities of full compliance with all local, state, and federal regulations through a suite of services that cover every permitting and ongoing maintenance obligation. Our team blends technical expertise with responsive field support — protecting water quality, reducing liability, and keeping your projects on schedule.
Our comprehensive services include:
Initial and annual As-Built Certification by a licensed Professional Engineer
Photo-documented inspections detailing system condition and maintenance needs
SWQMP documentation updates and compliance record management
Direct communication with owners/managers regarding corrective actions or repairs
Preparation and submission of annual re-permitting documents
Rapid response to unforeseen compliance or maintenance issues
Mediation and coordination with regulatory authorities, when needed
Pond remediation and restoration to maintain system performance
Whether your project involves a new development, an active industrial facility, or a municipal drainage system, HASSCORE delivers turnkey stormwater compliance solutions built on precision, reliability, and long-term performance.
Stormwater Pollution Prevention Plan Permit (SWPPP)
The SWPPP is a site-specific plan required for construction projects that disturb one or more acres of land. It outlines how stormwater runoff will be managed to prevent sediment, debris, and pollutants from leaving the construction site. At HASSCORE, we prepare, implement, and maintain SWPPPs in full compliance with TCEQ’s Construction General Permit (TXR150000). Our team performs routine weekly inspections, maintains documentation, and ensures your site meets all federal, state, and local stormwater regulations minimizing risk and keeping projects on schedule.
Municipal Separate Storm Sewer System (MS4)
The MS4 Permit governs stormwater systems owned and operated by municipalities, utility districts, or other public entities. It focuses on reducing pollutants from stormwater runoff that enters storm drains and ultimately impacts local waterways. HASSCORE partners with public entities to develop and implement effective Stormwater Management Programs (SWMPs) that meet TCEQ and EPA requirements. Our services include program development, public education, outfall inspections, illicit discharge detection, recordkeeping, and annual reporting.