The National Pollutant Discharge Elimination System (NPDES) is the primary federal permitting program under the Clean Water Act for regulating point-source discharges to waters of the United States. Every facility that discharges wastewater, stormwater, or process water to surface waters must hold an NPDES permit and comply with its effluent limitations, monitoring requirements, and reporting deadlines. NPDES permit compliance software automates permit tracking, data validation, and DMR reporting so your team can focus on operations instead of spreadsheets.
The NPDES Compliance Challenge
Managing NPDES compliance manually is error-prone and time-consuming, especially for facilities with multiple permits, dozens of outfalls, and hundreds of monitored parameters:
What NPDES Permit Software Does
Centralized Permit Limit Management
Store all effluent limitations in one system — daily maximums, monthly averages, instantaneous maximums, and loading-based limits for every outfall, every parameter, and every permit. When a permit is renewed or modified, update the limits once and the software automatically applies them to all future data comparisons and reports.
Automated Limit Comparison
Every lab result is automatically compared to the applicable effluent limit the moment it enters the system. Exceedances are flagged immediately with visual indicators and email alerts, giving your team time to investigate and respond before the DMR is due.
Sampling Schedule Management
Configure sampling frequencies per outfall and parameter — daily, weekly, monthly, or quarterly — and receive automated reminders when sampling is due. Track completed and overdue sampling events across all permits from a single dashboard.
Electronic DMR Generation
Generate Discharge Monitoring Reports with automated statistical calculations. The software computes monthly averages, daily maximums, minimum values, percentiles, and mass loading rates from your validated data. Export DMR files in formats compatible with EPA NetDMR and state electronic reporting systems.
Exceedance Management & Corrective Actions
When an exceedance is identified, the software creates a traceable record: what parameter exceeded, at which outfall, the measured value versus the permit limit, the date and time, and the assigned corrective action. This documentation is essential for demonstrating good-faith compliance efforts to regulators.
Multi-Permit, Multi-Site Support
Manage individual NPDES permits, multi-sector general permits (MSGP), construction general permits (CGP), and state-specific permits across multiple facilities from a single platform. Each permit maintains its own outfall definitions, parameter lists, effluent limits, and reporting schedules.
Types of NPDES Permits Supported
Ecesis handles the full range of NPDES permit types:
- Individual Permits — Site-specific permits for facilities with significant or complex discharges
- General Permits — Multi-Sector General Permit (MSGP), Construction General Permit (CGP), and state-equivalent general permits
- Pretreatment Permits — Industrial users discharging to publicly owned treatment works (POTWs)
- Combined Permits — Facilities with both process wastewater and stormwater discharge requirements under a single permit
The ROI of NPDES Compliance Software
Organizations that implement NPDES compliance software typically see measurable returns:
- DMR preparation time reduced from days to hours through automated calculations and pre-populated report forms
- Data entry errors eliminated by importing laboratory EDD files directly instead of manual transcription
- Missed samples prevented by automated scheduling and deadline notifications
- Exceedance response time reduced from weeks to hours through real-time limit comparison and alerting
- Audit readiness improved with complete, searchable compliance history and corrective action documentation
Related Ecesis Solutions
Water Quality Software
Lab imports, data validation, permit tracking and DMR reporting.
Stormwater Compliance
Stormwater permits, inspections and BMP tracking.
Compliance Obligations
Track all regulatory obligations and recurring deadlines.
Environmental Data
Sensor integration, statistical analysis and trend visualization.
Inspections & Audits
Mobile field inspections with corrective action tracking.
Incident Reporting
Document spills, releases and environmental incidents.
Ready to Automate NPDES Permit Compliance?
Call (720) 547-5102 or click below to schedule a free demo.
