Small towns and public works teams under an MS4 permit

Which town or agency holds the permit?

Draft your town's MS4 annual report and stormwater management program from last year's report and this year's counts. Free to read, pay to download.

  • Free to read
  • No sign-up until the draft
  • Every fact cites its source
STABILIZED ENTRANCE SILT FENCE · 340 FTINLET PROTECTION DISTURBED AREA · 1.4 AC

ePlan fills in

  • Urban area
  • Population
  • Impaired waters
  • Permit record

How it works

MS4 annual report, from one answer

  1. Name your town and upload last year's report.One answer starts the project. ePlan names it and looks up the place.
  2. ePlan fills the permit facts and lays out each of the six measures.3 more questions, each with a "not sure yet" way out.
  3. Read the report free, then download it to certify and file.The draft marks what to check (amber), what to pick (blue) and what to fill in (violet).

What you get

MS4 annual report and 2 more documents

The first draft is free to read. Each document after it is drafted from the same confirmed facts.

The first draft

MS4 annual report

  1. Permittee, permit number and reporting year
  2. Public education and outreach
  3. Public involvement and participation
  4. Illicit discharge detection and elimination
  5. Construction site runoff control
  6. Post-construction stormwater management

Modeled on: 40 CFR 122.34 minimum control measures and your state's annual report form

Next · 2

Stormwater management program update

  1. Measurable goals for each measure
  2. Responsible staff
  3. Schedule
Next · 3

Illicit discharge detection and elimination plan

  1. Storm sewer map and outfalls
  2. Dry-weather screening
  3. Tracing and removal

From public data

What ePlan fills in, and from where

50,000 people

is the urban-area size that brings a small town's storm sewer system under the federal MS4 rules
Source: 40 CFR 122.32(a)(1), eCFR

Questions

MS4 annual report: what people ask

Is my town's storm sewer system regulated?

A small MS4 is regulated if it lies in an urban area of 50,000 or more people under the latest Census, or if the permitting authority designates it. Only the part inside that urban area is regulated.

Source: ecfr.gov

How often do we file a report?

Every year during your first permit term. In later terms, reports are due in years two and four unless the permitting authority requires more often.

Source: ecfr.gov

What are the six minimum control measures?

Public education and outreach; public involvement; illicit discharge detection and elimination; construction site runoff control; post-construction stormwater management; and pollution prevention and good housekeeping for municipal operations.

Source: ecfr.gov

The rules this door follows