Phase II MS4 compliance software

Keep your stormwater program on track.

Know what is due, who is responsible, and where the evidence lives. Bring inspections, maps, follow-up work, and annual-report preparation into one workspace.

Explore demo Request a walkthrough

Startup Partner in the Esri Partner Network

Fictional data. Read-only demo. No signup. See Annual Reporting and notices in a guided walkthrough. Demo details.

What's in the public demo?

Tour Dashboard, My Work, Coordinator, Inspections, Sites, Outfalls, Contacts, Organizations, Tasks, Map, and read-only Setup on a fully populated, fictional City of Madrona tenant. The demo is read only: open and browse every mounted module, but nothing can be created, edited, saved, invited, imported, connected, or sent. Messages & Notices is locked in the public demo; Programs, Annual Reporting and other expanded modules are shown in guided walkthroughs and customer workspaces.

Small MS4 Essentials: $1,499 / year + applicable tax
Inspection Starter: $3,499 / year + applicable tax
Gold · Full MS4 Platform: From $18,000 / year plus applicable tax · all plans

Fictional, read-only sample. No signup.

Your program at a glance

Actual Dashboard view with fictional City of Madrona data. Explore the records behind the overview in the public demo.

What you can do in NPDESTracker

From field observation to annual-report evidence.

Capture the inspection

Keep site context, photos, GPS, findings, and the next task on one inspection record.

Move the follow-up forward

Draft notices, prepare printable letters, and log replies alongside the inspection. Email delivery options are confirmed for your agency during setup.

Work with your GIS

See outfalls, BMPs, and sites in map context. Connect your agency's ArcGIS content with named-user sign-in and read-only access, or import supported GIS files.

Prepare the annual report

Trace counts and draft narratives to the records behind them. Find missing answers and evidence before staff review and submission outside NPDESTracker.

Available workflows depend on your plan. Compare what's included or see the full workflow in a private demonstration.

A short walkthrough

See the gaps. Start the report from the records.

See what's still open, link the evidence, and complete the answers. These Annual Reporting views are walked through on request and are not part of the public demo.

See what is open

Operational gaps for the year.

Required answers, linked evidence, overdue tasks, and unresolved findings live on one view, with deep links into the underlying records.

Link the evidence

Each answer connects to the work behind it.

Review the linked records, see what is still missing, and complete the answer. Staff review and save the final report language.

Built around the work

Built for the records MS4 teams already manage.

Inspections, complaints, contacts, tasks, and reporting evidence stay connected.
Try the public tour, then ask us to walk through your inspection and reporting workflow.
Configuration is available without starting from a blank system.
Records stay yours: exports are available in supported formats for modules included in the order; scope is confirmed during setup.

For your agency's review

A clear path from first look to a working program.

Review the data controls

Each agency has its own workspace and audit trail. Review access, hosting, and data handling with your IT team before bringing in agency records.

Security and privacy

Know what setup involves

Start with a defined workflow, a designated admin, and the records you need to import. Review the implementation steps and confirm the scope before purchase.

The implementation plan

Keep ownership of your records

Exports are available in supported formats for modules included in your order. Confirm the formats and export scope your agency needs during setup.

Data handling and offboarding

Find your starting point

Choose the scope your team needs.

The entry plans and the full platform cover different workflows. Start with your team's work, then confirm the fit in a walkthrough.

Small MS4 Essentials

Organize a very small program

$1,499 / year

plus applicable taxes

Sites, inspections, tasks, basic IDDE tracking, event logs, and a basic readiness dashboard. Self-service setup for up to two users.

See plan details

Inspection Starter

Run the inspection workflow

$3,499 / year

plus applicable taxes

Sites and contacts, mapping, assignments, inspection records, notice drafts, and enforcement tracking for up to five users.

See plan details

Full MS4 Platform

Bring the broader program together

From $18,000 / year

plus applicable taxes

The annual reporting workspace and broader MS4 program workflows. User count, onboarding, data imports, and support are scoped in writing.

See plan details

Need supervisor workflows and a larger inspection team? Inspection Team is $9,499 / year, plus applicable taxes. Compare every plan.

Take the next step

Bring one workflow you want to make easier.

An inspection, an overdue follow-up, or annual-report preparation. We'll walk through how the records connect and discuss the plan and setup your agency needs.

Explore on your own

Browse fictional inspection records, tasks, and map context. The public demo is read-only, with no signup. Annual Reporting and notices are shown in a private demonstration.

Explore demo

See it with your team's questions

Request a private demonstration covering inspections, notices, reporting evidence, and setup. Bring your IT and procurement questions. No purchase is required.

Request a walkthrough