Minimum Control Measures

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***REPORT WATER POLLUTION OR HAZARDOUS SPILLS*** 

The following 6 Minimum Control Measures (MCM) are required by the National Pollutant Discharge Elimination System's (NPDES) Municipal Separate Storm Sewer System (MS4) permit (NPDES MS4 Permit):

  1. Public Education and Outreach on Storm Water Impacts
  2. Public Involvement / Participation
  3. Illicit Discharge Detection and Elimination
  4. Construction Site Storm Water Runoff Control
  5. Post-Construction Storm Water Management in New Development and Redevelopment
  6. Pollution Prevention / Good Housekeeping for Municipal Operations

Within each MCM are a list of Best Management Practices (BMPs) that DuPage County Stormwater Division (DCSM), along with the Village as a partnering agency, has indicated that it will utilize in its Notice of Intent (NOI) to the Illinois Environmental Agency (IEPA). The parties responsible for the implementation of each BMP are listed below and referenced throughout the document:


Public Education and Outreach

The Village uses the following communication platforms to reach its residents:

  • Website
  • Social Media (Facebook & Twitter)
  • Water Bills (Printed message on backside)
  • Electronic Message Board (Southwest corner of Gary Avenue & Fullerton Avenue)
  • Public Access Channel (No. 006)

A.1 Distributed Paper Material

The Village distributes the educational materials created by DCSM by linking to the handouts and brochures on its website. The Village also occasionally promotes these materials by season/topic via the Village's various communication platforms.

Responsible Parties

  • ENG will manage the website hyperlinks on at least an annual basis, or as needed.
  • ENG will coordinate with ADM on the topic to be promoted. ADM will determine and publish DCSM's links via the communication platform(s) deemed most appropriate.

A.2 Speaking Engagement

The Village promotes and advertises all workshops conducted by DCSM for the West Branch DuPage River via its communication platforms, as well as for East Branch DuPage River when appropriate. Village staff will attend the workshops depending on the topic being presented and availability.

Responsible Parties

  • ENG will notify ADM of speaking engagements. ADM will determine and publish via the communication platform(s) deemed most appropriate.
  • ENG will attend the workshops and invite PW when appropriate.

A.3 Public Service Announcement

The Village will promote DCSM content that may be applicable to residents through its various communication platforms. The Village may also produce and promote its own content that addresses issues particular to the Village.

Responsible Parties

  • ENG will provide ADM with content from DCSM. ADM will determine and promote DCSM content via the communication platform(s) deemed most appropriate.

A.4 Community Event

The Village conducts two annual events to bring surface water quality issues to the public's attention: the "Pond & Stream Sweep" and the "Waste Water Treatment Plant Open House". During the Open House, ENG assists DCSM with staffing a booth to discuss topics with participants and provide handouts and brochures. Both events are addressed further under the MCM for Public Involvement / Participation.

Responsible Parties

  • ENG administers the "Pond & Stream Sweep" event.
  • PW administers the "Waste Water Treatment Plant Open House" event.

A.5 Classroom Educational Material

DCSM is the lead for this BMP. The Village does not perform anything related to this BMP in its Stormwater Management Program at this time.

A.6 Other Public Education

This BMP is not included in the Stormwater Management Program.

 


Public Participation / Involvement

B.1 *BLANK*

This BMP is not included in the Stormwater Management Program.

B.2 Educational Volunteer

DCSM is the lead for this BMP. The Village is available to assist the school districts with any programs or activities, such as installing storm medallions with S.C.A.R.C.E.

B.3 Stakeholder Meeting

The Village promotes and advertises all workshops conducted by DCSM for the West Branch DuPage River via its communication platforms, as well as for East Branch DuPage River when appropriate. Village staff will attend the workshops depending on the topic being presented and availability. Village staff attends meetings and serves on various committees of the DuPage River Salt Creek Workgroup (DRSCW).

Responsible Parties

  • ENG will notify ADM of speaking engagements. ADM will determine and publish via the communication platform(s) deemed most appropriate.
  • ENG will attend the workshops and DRSCW events and invite PW when appropriate.

B.4 Public Hearing

The Village promotes and advertises DCSM's annual public hearing via its communication platforms. Although not required, the Village conducts its own public hearing in conjunction with the next regularly scheduled Village Board meeting following DSCM's hearing.

Responsible Parties

  • ENG will notify ADM of the time/location for the public hearings. ADM will determine and publish via the communication platform(s) deemed most appropriate.

B.5 Volunteer Monitoring

This BMP is not included in the Stormwater Management Program.

B.6 Program Involvement

DCSM is the lead for this BMP. The Village does not perform anything related to this BMP in its Stormwater Management Program at this time.

B.7 Other Public Involvement

This BMP is not included in the Stormwater Management Program.

 


Illicit Discharge Detection and Elimination

 C.1 Sewer Map Preparation

The Village maintains a map of all public and private storm sewers, drains, and outfalls using a Geographic Information System (GIS). Updated versions of these maps are sent to DCSM on an annual basis for their reference.

Responsible Parties

  • ENG manages and maintains the map in conjunction with Information Technology Services Department.
  • ENG provides the annual update of the map to DCSM.

C.2 Regulatory Control Program

The Village has adopted Municipal Code Chapter 13, Article 5 known as the "Village of Carol Stream Illicit Discharge Detection and Elimination Ordinance". 

C.3 Detection / Elimination Prioritization Plan

The Village adheres to the DuPage County IDDE Program Technical Guidance Manual.

Responsible Parties

  • DCSM manages and maintains the manual.

C.4 Illicit Discharge Tracing Procedures

The Village uses the storm sewer atlas and testing, if applicable, to determine potential sources.

Responsible Parties

  • PW tests and traces any potential illicit discharge.

C.5 Illicit Source Removal Procedures

DuPage County Stormwater Division maintains a county-wide Illicit Discharge Detection and Elimination Hotline at 630-407-6796, or they can be contacted by email, or thru their online Citizen Reporter web application. In addition, you may contact the Department of Public Works at (630) 871-6260 during normal business hours or leave a message.

C.6 Program Evaluation and Assessment

This BMP is not included in the Stormwater Management Program.

C.7 Visual Dry Weather Screening

DCSM is the lead for this BMP regarding outfall inspections on the West Branch DuPage River. The Village inspects outfalls to detention basins and its tributaries during routine operations.

Responsible Parties

  • ENG inspects outfalls during inspections of detention basins or during stream maintenance projects.
  • PW inspects outfalls during routine operations.

C.8 Pollutant Field Testing

The Village will contact DCSM to conduct testing if the discharge indicates its of an illicit nature.

Responsible Parties

  • PW contacts DCSM, as needed.

 


Construction Site Storm Water Runoff Control

D.1 Regulatory Control Program

The Village has adopted the DuPage County Stormwater and Flood Plain Ordinance (DCSFPO) per Municipal Code Chapter 6, Article 14. The Village has received permission to act as a "Complete Waiver" community, which means it has acquired complete jurisdiction over reviewing applications for and granting Stormwater Management Certifications. DCSM amends their ordinance from time-to-time. The Village may also make amendments, though said amendments must always be more restrictive.

Responsible Parties

  • ENG reviews and issues Stormwater Management Certifications.
  • ENG reviews and updates the Village Municipal Code, as needed.

D.2 Erosion and Sediment Control BMPs

The DCSFPO requires temporary soil erosion and sediment control for Development that involves more than 5,000 square feet of land disturbing activities.

D.3 Other Waste Control Program

This BMP is not included in the Stormwater Management Program.

D.4 Site Plan Review Procedures

The DCSFPO requires a Stormwater Management Certification for Development that involves more than 5,000 square feet of land disturbing activities.

Responsible Parties

  • ENG reviews and issues Stormwater Management Certifications.

D.5 Public Information Handling Procedures

The Department of Engineering Services receives and responds to any concerns from the public regarding soil erosion and sediment control on private Development and Capital Improvement Projects (ex. roadway construction). Any complaints related to work by Public Works crews or its contractors is directed to the Department of Public Works. DCSM will also accept concerns from the public via its online Citizen Reporter web application.

Responsible Parties

  • ENG responds to concerns regarding private Development and Capital Improvement Projects.
  • PW responds to concerns regarding work by Public Works crews or contractors.
  • DSCM responds to concerns regarding Development within unincorporated areas.

D.6 Site Inspection / Enforcement Procedures

The Department of Engineering Services staffs inspectors for site inspection and to assist the Engineering Services Director with enforcement.

Responsible Parties

  • ENG inspects private Development and Capital Improvement Projects.
  • PW inspects work by Public Works crews or contractors.
  • DSCM inspects Development within unincorporated areas.

D.7 Other Construction Site Runoff Controls

This BMP is not included in the Stormwater Management Program.

 


Post-Construction Storm Water Management in New Development and Redevelopment

E.1 Community Control Strategy

This BMP is not included in the Stormwater Management Program.

E.2 Regulatory Control Program

The Village has adopted the DuPage County Stormwater and Flood Plain Ordinance (DCSFPO) per Municipal Code Chapter 6, Article 14. The Village has received permission to act as a "Complete Waiver" community, which means it has acquired complete jurisdiction over enforcing Stormwater Management Certifications. DCSM amends their ordinance from time-to-time. The Village may also make amendments, though said amendments must always be more restrictive.

Responsible Parties

  • ENG enforces Stormwater Management Certifications.
  • ENG reviews and updates the Village Municipal Code, as needed.

E.3 Long Term O & M Procedures

The DCSFPO requires long-term maintenance of Post-Construction Best Management Practices (PCBMPs) and a maintenance plan included with the Stormwater Management Certification. In order to facilitate enforcement, easements are provided for the Village and DuPage County to perform maintenance and invoice the owner should they fail to fulfill their responsibilities.

Responsible Parties

  • ENG reviews the maintenance plans and ensures easements are recorded against the property.

E.4 Pre-Construction Review of BMP Designs

The DCSFPO requires PCBMPs for Development that increases Impervious Area by more than 2,500 square feet. The PCBMPs are reviewed and approved through the issuance of a Stormwater Management Certification.

Responsible Parties

  • ENG reviews and issues Stormwater Management Certifications.

E.5 Site Inspections During Construction

The Department of Engineering Services staffs inspectors for site inspection and to assist the Engineering Services Director with enforcement.

Responsible Parties

  • ENG inspects private Development and Capital Improvement Projects.
  • DSCM inspects Development within unincorporated areas.

E.6 Post-Construction Inspections

For PCBMPs that rely on vegetation, the Village maintains a performance security until they're established (typically 2-3 years). All PCBMPs are randomly inspected by the Village to ensure their continued operation and property owners are notified either verbally or in writing of any noted deficiencies.

Responsible Parties

  • ENG inspects and enforces maintenance of PCBMPs.

E.7 Other Post-Construction Runoff Controls

This BMP is not included in the Stormwater Management Program.

 


Pollution Prevention / Good Housekeeping for Municipal Operations

F.1 Employee Training Program

Village staff attend the "Pollution Prevention Seminar for MS4 Communities" conducted by DCSM.

Responsible Parties

  • ENG and PW ensure that at least 1 staff member each attend.

F.2 Inspection and Maintenance Program

The Village inspects its infrastructure / facilities according to various schedules:

  • Inlets / Catch Basins / Manholes: Inspections occur on those within the scope, and prior to, the next year's roadway construction. Based on past experience, the Village has determined that a regular program for catch basin cleaning is unnecessary and are instead cleaned on an as needed basis.
  • Storm Sewer Pipe: Inspected on an as needed basis. Cleaning on an as needed basis.
  • Storm Culverts: Critical culverts are inspected by a Structural Engineer approximately every 3 years. Debris is removed from culverts after significant rainfall events.
  • Storm Bridges: Inspected according to Illinois Department of Transportation's requirements. Debris is removed from bridges after significant rainfall events.
  • Storm Basins: Inspected on an annual basis. 
  • Storm Lift Stations: Inspected on an annual basis.

Responsible Parties

  • Inlets / Catch Basins / Manholes: ENG inspectors inspect prior to roadway construction. PW cleans catch basins.
  • Storm Sewer Pipe: PW inspects and cleans.
  • Storm Culverts: ENG manages the consultant contract. PW clears debris.
  • Storm Bridges: ENG manages the consultant contract. PW clears debris.
  • Storm Basins: ENG inspects. ENG oversees consultant contract for native vegetated shorelines, while PW maintains all other aspects.
  • Storm Lift Stations: PW inspects and maintains.

F.3 Municipal Operations Storm Water Control

The Village contracts for street sweeping on a monthly basis between April and November. The Village also owns its own sweeper that is used for special events and as needed (i.e. prior to forecasts of significant rainfall). The Village's contract for Residential Garbage & Recycling includes yard waste collection from April to November and leaf collection during October and November. The Village maintains (i.e. trims, prunes, removes, installs, etc.) parkway trees throughout the Village to reduce debris entering the storm sewer system, as well as reduce the volume of storm water runoff from high-frequency rainfall events. The Village will respond to requests for litter / debris removal, as well as coordinate with DuPage County S.W.A.P. for periodic litter removal along certain sections of public right-of-way.

Responsible Parties

  • PW manages the street sweeping contract and its own sweeper.
  • ADM manages the contract for Residential Garbage & Recycling.
  • PW manages parkway trees by contractor and in-house staff.
  • PW picks up litter/debris and coordinates with DuPage County S.W.A.P.

F.4 Municipal Operations Waste Disposal

The Village temporarily stores sediment spoils removed during operations (ex. water main repair) at the Public Works facility for testing before ultimately disposing at a landfill. Garbage bins are provided at the Fountains at Town Center, Day Lily Park, and Village Hall. In addition, a dog waste station was installed at the WRC's pollinator meadow.

Responsible Parties

  • PW manages sediment spoil disposal.
  • ADM maintains the garbage bins at the various municipal facilities, except that PW (i.e. WRC Staff) maintains the dog waste station and garbage disposal at WRC pollinator meadow.

F.5 Flood Management / Assess Guidelines

The Village coordinates with DCSM on any watershed plans and regional flood control planning within the Village's municipal limits. This coordination includes assessing impacts of future projects on water quality.

The Village maintains native vegetation for 11 storm water basins with native vegetation along the shorelines, 3 storm water basins that have a wetland constructed bottom, and 1 roadside detention. The native vegetation prevents against sedimentation from shoreline erosion and reduces nutrient pollution through uptake.

DuPage County maintains 3 regional flood control facilities within the municipal limits: Armstrong Park Reservoirs, Gary Kehoe Reservoir, and Wayne Oaks Dam. All 3 facilities incorporate native vegetation to stabilize the banks and contribute to water quality. One of Armstrong Park's reservoirs is a constructed wetland bottom.

Responsible Parties

  • ENG is the point of contact with DCSM.
  • ENG manages the contract to maintain the native vegetation for the various detention basins and wetlands.
  • DCSM maintains the 3 regional flood control facilities.

F.6 Other Municipal Operations and Controls

The Village has a Snow and Ice Plan that helps to reduce pollution from chlorides (i.e. de-icing salt).

Responsible Parties

  • PW manages the Snow and Ice Plan.

 


LAST UPDATED ON: February 14, 2019