"Municipal separate storm sewer system" is specifically defined
in the federal rules (Title 40 Code of Federal Regulations Part 122.2
),
but the term is easier to understand if we break it down.
First, "separate storm sewer system" includes ditches, curbs,
gutters, storm sewers, and similar means of collecting or conveying
runoff that do not connect with a wastewater collection system or
treatment plant.
And to be a "municipal separate storm sewer system" (MS4), the
system must be owned or operated by a public agency—for
example:
-
a city or town
-
a municipal utility district, flood control district, or other
special district
-
a county
-
a state or federal agency
If you have any questions as to whether you own or operate an
MS4, contact us.
