Illicit discharges inlcude nearly anything that isn't stormwater such as illegal dumping in storm drains, animal wastes, fertilizers, industrial and commercial waste, sewage, leaves, etc. Towns and instituions need to identify and remove non-stormwater discharges to their MS4.
Priority areas: means areas in the Urbanized Area and in catchments with more than 11% DCIA or catchments that discharge to an impaired waterbody. If any one of these conditions exists, it's part of the priority area.
Illicit discharge: means any unpermitted discharge to waters of the state that does not consist entirely of stormwater or uncontaminated groundwater except those discharges identified in Section 3(a)(2) of the MS4 general permit when such non-stormwater discharges are not significant contributors of pollution to a dischage from an identified MS4.
Sanitary Sewer Overflow (SSO): means a discharge of untreated sanitary wastewater from a municipal sanitary sewer.
Outline of the IDDE legal authority requirements.
Example IDDE ordinance available on the Legal Authorities page.
9/27/17 IDDE workshop presentations (below Task list)
Example Manhole Inspection form [60 KB] (developed by Fuss and O'Neill)
Where the deadline for new MS4 permittees differs from the deadline for exisiting permittees, the second deadline in parenthesis applies to new permittees.
| Activity | Deadline | Permit Page |
|---|---|---|
Maintain inventory of known SSOs (5 year look back) |
Oct 30 2017 |
App B p2 |
Citizen reporting program in place |
Jul 1 2017 |
22 |
Record illicit discharge abatement activities |
Jul 1 2017 |
23 |
Develop written IDDE program |
Jul 1 2018 (Jul 1 2019) |
22 & AppB p4 |
Establish IDDE legal authority |
Jul 1 2019 |
23 & AppB p5 |
Map all MS4 outfalls |
Jul 1 2019 (Jul 1 2020) |
23 & AppB p2 |
Complete dry weather outfall sampling (for high & low priorty outfalls) |
Jul 1 2020 (Jul 1 2022) |
AppB p8 |
Detailed MS4 mapping |
Jul 1 2020 (Jul 1 2022) |
AppB p3 |
The NEMO program and Fuss and O'Neill presented a workshop on IDDE on 9/27/17 at Newington Town Hall. Most of the presentations were recorded. The presentation slides and recordings (where available) can be found below.
