CORE Environmental Consultants provides full Industrial Stormwater MSGP Compliance support for facilities regulated under the NYSDEC Multi-Sector General Permit (MSGP) for stormwater discharges associated with industrial activity. From preparing Stormwater Pollution Prevention Plans (SWPPPs) to conducting stormwater sampling and completing annual reports, our team helps clients meet all technical and administrative requirements under SPDES General Permit GP-0-25-001.

We serve a wide range of regulated sectors across New York State, including transportation, manufacturing, recycling, and waste management facilities.


When Is Industrial Stormwater MSGP Coverage Required?

Facilities must obtain coverage under the MSGP if they:

  • Have an industrial activity code (SIC code) listed in the MSGP permit appendix
  • Have exposed materials or processes that could be contacted by stormwater
  • Discharge stormwater directly or indirectly to waters of the state
  • Are required to do so by a DEC enforcement action or Notice of Violation (NOV)

Failure to comply with MSGP requirements can result in violations, fines, and disruption to site operations.


CORE’s Industrial Stormwater MSGP Compliance Services

We offer turnkey MSGP support for both new and existing facilities:

  • SWPPP development or updates tailored to your sector and site
  • Notice of Intent (NOI) preparation and e-filing
  • Quarterly visual monitoring and benchmark sampling
  • Outfall mapping and pollutant source identification
  • Annual Certification Reports (ACR) and discharge monitoring reports (DMRs)
  • Best Management Practices (BMPs) design and maintenance plans
  • Employee training and recordkeeping templates

We ensure your site remains in compliance year-round with proactive monitoring and timely reporting.


Our Industrial Stormwater MSGP Process

  1. Applicability Review & NOI Filing
    We determine your facility’s sector code, exposure status, and discharge pathway. If MSGP applies, we file your Notice of Intent (NOI) with NYSDEC electronically.
  2. Industrial SWPPP Preparation
    CORE prepares or updates your Industrial SWPPP, including a site-specific BMP plan, drainage map, and pollution prevention team responsibilities.
  3. Monitoring Program Setup
    We identify outfalls, sampling points, and benchmark pollutants based on your sector. We then schedule:
  4. Quarterly visual inspections
  5. Benchmark monitoring (analytical lab samples)
  6. Corrective action triggers if benchmarks are exceeded
  7. Training & Internal Compliance
    We train your staff to perform inspections, implement BMPs, and manage records. We also provide templates and checklists to streamline documentation.
  8. Annual Reporting & Ongoing Support
    CORE prepares your Annual Certification Report (ACR) and assists with Discharge Monitoring Reports (DMRs) or any agency follow-up.

✅ Why CORE?

✔ MSGP Sector Experience
We’ve worked across Sectors A through AC, with expertise in manufacturing, transportation, metals, chemical storage, and recycling.

✔ SWPPP & BMP Integration
Our engineers and environmental scientists integrate MSGP BMPs into existing operations with minimal disruption.

✔ Sampling & Lab Coordination
We coordinate sample collection and lab submittals to ensure timely, valid results.

✔ Audit-Ready Documentation
Our files are prepared to withstand inspections and state audits—with everything you need in one place.

Our Environmental Compliance Services.

Stormwater Permitting & SWPPP Preparation

CORE develops comprehensive Stormwater Pollution Prevention Plans (SWPPPs) for construction and industrial sites in accordance with NYSDEC’s SPDES General Permit requirements. We evaluate site-specific runoff risks, design BMPs, and prepare regulatory-compliant plans to support permit applications, inspections, and on-site compliance throughout the project lifecycle.

Industrial Stormwater (MSGP) Compliance

CORE supports facilities covered under the Multi-Sector General Permit (MSGP) with tailored stormwater compliance services, including SWPPP preparation, quarterly inspections, benchmark monitoring, and annual reporting. Our programs help industrial operators maintain stormwater quality, avoid violations, and align operations with NYSDEC and EPA MSGP standards.

Hazardous Waste Management Programs

CORE assists generators in developing and maintaining hazardous waste management programs that meet state and federal requirements. From waste profiling and labeling to manifest tracking and contingency planning, we ensure compliance with RCRA, 6 NYCRR Part 370 series, and EPA generator classifications—protecting clients from fines and operational risk.

Air Quality Permitting

CORE prepares air permit applications for a range of regulated activities, including stationary combustion sources, remediation equipment, and vapor mitigation systems. Our team navigates permitting thresholds, performs emissions calculations, and coordinates with regulatory agencies to secure Title V, minor source, and general air permits under NYSDEC and EPA guidelines.

Environmental Compliance Audits

CORE performs internal and third-party environmental compliance audits to evaluate adherence to applicable regulations, permits, and corporate standards. Our audits cover hazardous materials, waste, air, water, and site operations—delivering practical recommendations and defensible documentation to help clients minimize liability and maintain long-term environmental performance.

Need MSGP Compliance Support?

Don’t let stormwater compliance put your operations at risk. Let CORE manage your MSGP program so you can focus on your business.

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