Stormwater inspection software
Stormwater inspection software for municipal MS4 programs.
Track construction, source control, IDDE, O&M, structure, outfall, and BMP inspections in one workspace. Mobile field capture with photo and GPS evidence, tasks and corrective actions, GIS context, and audit trails on key records. Built first for small and mid-sized Phase II MS4 permittees.
01 · Who this is for
Inspection-aware MS4 software, written for the people running the work.
Most stormwater inspection software is either a generic field-data app bent into compliance shape, or a heavy permit-management product that asks an inspection team to wade through annual-reporting features they do not need. NPDESTracker is built first for small and mid-sized Phase II MS4 permittees, with an inspection workflow that matches how the work actually happens at a city or county program.
Two paths run from this page. If your program also wants MS4 annual reporting in NPDESTracker, the Annual Platform is the right tier. If your team handles annual reporting elsewhere and just needs a stormwater inspection management software workspace with GIS, assets, and corrective actions in one place, the Inspection + GIS Starter is a specialized-scope option for that.
02 · Inspection scope
Every inspection kind a Phase II MS4 program runs, in one workspace.
MS4 inspection software earns its keep by knowing the difference between a construction site, a structure, an outfall, and an IDDE complaint. Each kind has a structured form, a permit-aligned cadence, and a clear distinction between site-level and structure-level work. The full inspection workflow is detailed on the inspections page, and a friendlier walkthrough of what a small program should look for is on the MS4 inspection software guide.
Inspection kinds in scope
- Construction site stormwater inspections during active build-out
- Source control inspections at industrial and commercial sites
- IDDE complaint intake, dry-weather screening, and source-tracing
- Operations and maintenance inspections for municipal good-housekeeping
- Drainage structure inspections (catch basins, manholes, vaults)
- Outfall inspections tied to dry-weather screening results
- Post-construction BMP inspections on accepted assets
03 · Field evidence
Photo and GPS evidence, captured the moment the inspection happens.
The auditors care about what was seen and where. Inspection records carry photos and GPS coordinates pinned to the work, so the office side of the program sees exactly what the inspector saw. The full framing of what auditors expect is in the photo and GPS evidence guide.
Field capture
- Mobile-friendly inspection forms with photo and GPS evidence, designed for field use on phones and tablets
- Photo attachment with timestamp and location preserved on the record
- GPS coordinates pinned to the inspection so the office side of the team sees where the work happened
- Structured fields per inspection kind, not a generic note attached to a generic task
- Browser-based, with no separate field app to install on inspector devices
04 · Tasks and corrective actions
Findings turn into follow-up. Closures land back on the record.
Stormwater inspection tracking software has to do more than capture inspections. When a deficient finding turns up, a follow-up task opens against the record with a due date, an assignee, and the evidence of how it was resolved. Overdue and due-soon work is visible across the program before it becomes an audit finding.
Tasks and corrective actions
- Deficient findings open follow-up tasks attached to the source inspection
- Due dates per task and per inspection cadence
- Assignee, status, and completion attribution
- Closure evidence (photo, note, follow-up inspection) on the task itself
- Overdue and due-soon visibility across the program before items become audit findings
- Audit trails on key compliance records and reporting actions
05 · GIS context
Spatial context where the inspection lives.
Stormwater is spatial. The GIS workspace puts site, outfall, structure, and BMP layers on a live municipal map next to the inspection records, so a coordinator can move from a map pin to the underlying record's full history with one click. The full GIS posture is on the GIS page, and the relationship between MS4 software and ArcGIS is covered in MS4 software vs ArcGIS.
GIS capabilities
- Site, outfall, structure, and BMP layers on a live municipal map
- Layer import in standard formats (GeoJSON, shapefile, CSV with lat/lon)
- One click from a map pin to the underlying inspection history
- Filter by inspection status, overdue, or recently flagged
- Designed to coexist with ArcGIS Online, ArcGIS Enterprise, or QGIS, not to replace them
06 · Records and exports
Audit-ready records, exportable when you need them.
Every inspection, task, and asset record carries a timestamped, user-attributed audit trail on create, edit, and override events. CSV exports cover supported operational records, with broader export support available during onboarding and support requests. Security framing for the platform is on the security page.
Reports and exports
- Inspection summary reports filtered by date, site, or kind
- Asset rosters with current status across sites, outfalls, structures, and BMPs
- Task and corrective-action lists with closure status
- CSV exports for supported operational records, with broader export support available during onboarding and support requests
- Audit trails on key compliance records and reporting actions
- Print-friendly views of individual inspection records
07 · Inspection records and annual reporting
When the customer is on the Annual Platform, inspection records support the annual report.
Inspection records do most of the heavy lifting on a Phase II MS4 annual report. MCM 4 construction inspections, MCM 5 post-construction BMPs, MCM 6 facility inspections, and IDDE incidents all flow into the report when a customer is on the Annual Platform. Counts are computed from the actual records logged through the year, not typed into a free-text field.
The Annual Platform also adds an evidence workspace where each annual report question can link directly to the inspections, BMP records, IDDE incidents, and enforcement actions that support it. Smart Draft is an assistive drafting feature inside that workspace; it does not submit, certify, lock, or replace staff review on the report. Full description is on the Smart Draft page and the Smart Draft and AI disclosure.
NPDESTracker does not submit annual reports to Ecology, EPA, or any state agency on a customer's behalf. The submission step stays with the human at the agency, on the agency's submission channel.
08 · Two ways to start
Specialized scope or full MS4 program workspace.
Two distinct offers. The Inspection + GIS Starter and the Annual Platform are different workspaces with different scopes, not a smaller-bigger pair. Pick the one that matches how your program actually runs.
Inspection + GIS Starter
From $7,500 a year. For inspection-only teams.
Field inspections, GIS, assets, corrective actions, attachments, and exports in one workspace. For teams that handle annual reporting elsewhere.
- Field inspections, sites, outfalls, structures, and BMP inventory
- Tasks and corrective actions with follow-up cycles
- Photo, GPS, and file attachments on records
- GIS workspace with layer import and asset maps
- CSV exports for supported operational records
- Browser-based access, tenant isolation, role-based access, MFA support
- Email support during business hours
Annual Platform
From $13,000 a year. The main product.
A broader MS4 program workspace built around the full annual reporting cycle for small and mid-sized Phase II MS4 permittees.
- Annual report evidence workspace with per-question evidence linking
- Smart Draft assistive drafting from linked evidence (default deterministic, optional external AI is operator-controlled)
- Public Education and Outreach module (MCM 1)
- Public Participation module (MCM 2)
- MS4 Metrics supervisor snapshot
- Annual report state machine with certification capture and print-friendly preview
- Permit-specific annual report templates (currently WA Phase II Western 2024-2029)
- Plus everything in Inspection + GIS Starter for the inspections side of the program
See it on sample data.
Open the demo to see the daily workspace, or request a guided walkthrough of this module.